CN109729327A - Image display method, apparatus and system - Google Patents
Image display method, apparatus and system Download PDFInfo
- Publication number
- CN109729327A CN109729327A CN201711047913.9A CN201711047913A CN109729327A CN 109729327 A CN109729327 A CN 109729327A CN 201711047913 A CN201711047913 A CN 201711047913A CN 109729327 A CN109729327 A CN 109729327A
- Authority
- CN
- China
- Prior art keywords
- display screen
- brightness
- optical signal
- reflection
- optical sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 342
- 238000001228 spectrum Methods 0.000 claims description 58
- 230000007613 environmental effect Effects 0.000 claims description 30
- 230000011514 reflex Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 11
- 239000003086 colorant Substances 0.000 description 7
- 241001270131 Agaricus moelleri Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 235000012736 patent blue V Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Landscapes
- Projection Apparatus (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The embodiment of the present invention provides a kind of image display method, apparatus and system, applied to optical projection system, optical projection system includes projection device, display screen and the first optical sensor, projection device is used to pre-set image being projected to display screen, method includes: the optical signal for obtaining the first optical sensor and receiving, and optical signal is the signal that the first optical sensor is reflexed to when display screen shows pre-set image；The optical signal received according to the first optical sensor, obtain the white field chromaticity coordinates of maximum reflection brightness, minimal reflection brightness and the display screen of display screen under maximum reflection brightness, according to the white field chromaticity coordinates of maximum reflection brightness, minimal reflection brightness and display screen, adjust the image quality parameter of projection device, wherein, image quality parameter includes at least one of white balance coefficients, the purity of pre-set color point and the corresponding brightness of each grayscale.For improving the adjusting efficiency of image quality parameter.
Description
Technical field
The present embodiments relate to projection art more particularly to a kind of image display methods, apparatus and system.
Background technique
Currently, optical projection system using more and more extensive, wherein optical projection system may include laser projection system etc., example
Such as, laser projection system can be laser television, laser-projector etc..
Projection device and display screen are generally included in optical projection system, in the course of work of optical projection system, projection device hair
Picture is presented to display screen in the light projection shot out in display screen.In actual application, in order to improve optical projection system
Flexibility, a projection device can be usually adapted to a plurality of types of display screens, still, different types of display screen
Characteristic it is different, for example, different types of display screen is different to the reflectivity of each primary colours, gain is different, environment resistant light ability
Difference, in order to guarantee the display effect of display screen, is needed to projection device when projection device is adapted to different types of display screen
In image quality parameter be adjusted, for example, image quality parameter may include the purity etc. of white balance coefficients and pre-set color point.
In the prior art, when projection device is adapted to different types of display screen, usually by manually carrying out image quality parameter
It adjusting, needs to have certain professional knowledge due to carrying out image quality parameter adjusting, most users not will do it image quality parameter adjusting,
Even if the technical staff for having professional knowledge, it is also desirable to which longer time could complete image quality parameter adjusting, lead to image quality parameter
Adjusting inefficiency.
Summary of the invention
The embodiment of the present invention provides image display method, apparatus and system.It improves image quality parameter and adjusts efficiency.
In a first aspect, the embodiment of the present invention provides a kind of image display method, it is applied to optical projection system, the optical projection system
Including projection device, display screen and the first optical sensor, the projection device is used to pre-set image being projected to the display screen,
The described method includes:
The optical signal that first optical sensor receives is obtained, the optical signal is that the display screen shows described default
The signal of first optical sensor is reflexed to when image, first optical sensor is located at except the display screen, and is located at
The corresponding viewing areas of the display screen；
According to the optical signal that first optical sensor receives, maximum reflection brightness, the minimum of the display screen are obtained
The white field chromaticity coordinates of reflecting brightness and the display screen under the maximum reflection brightness, the maximum reflection brightness are described aobvious
The sum of the brightness of the maximum display brightness of display screen and the environment light of display screen reflection, the minimal reflection brightness are described aobvious
The sum of the brightness of the minimum display brightness of display screen and the environment light of display screen reflection；
According to the white field chromaticity coordinates of the maximum reflection brightness, the minimal reflection brightness and the display screen, institute is adjusted
State the image quality parameter of projection device, wherein the image quality parameter includes the purity and each grayscale of white balance coefficients, pre-set color point
At least one of corresponding brightness.
In a kind of possible embodiment, the optical signal that first optical sensor receives is obtained, including
It controls the projection device and the corresponding light of multiple pre-set images is projected into the display screen respectively, so that described
Display screen shows the pre-set image；
Obtain the optical signal that first optical sensor receives the display screen reflection, the light letter of the display screen reflection
It include the optical signal of pre-set image reflection of the display screen to display and the ambient light signal of display screen reflection in number.
In alternatively possible embodiment, according to the maximum reflection brightness, the minimal reflection brightness and described
The white field chromaticity coordinates of display screen, adjusts the image quality parameter of the projection device, comprising:
According to the maximum reflection brightness and minimal reflection brightness, the contrast of the display screen is obtained；
Judge whether the contrast is less than default contrast；
If so, obtaining the environment bright of the display screen reflection according to the optical signal that first optical sensor receives
Degree is adjusted according to the environmental light brightness that the white field chromaticity coordinates, standard white field chromaticity coordinates and the display screen of the display screen reflect
The image quality parameter of the projection device；
If it is not, then according to the maximum reflection brightness of the display screen, the white field chromaticity coordinates and standard white field of the display screen
Chromaticity coordinates adjusts the image quality parameter of the projection device.
In alternatively possible embodiment, according to the white field chromaticity coordinates of the display screen, standard white field chromaticity coordinates and
The environmental light brightness of the display screen reflection, adjusts the image quality parameter of the projection device, comprising:
The white balance coefficients that the projection device is set are adjusted, until the white field chromaticity coordinates and standard white of the display screen
The difference of field chromaticity coordinates is within the scope of preset difference value；
According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted；
According to the environmental light brightness that the display screen reflects, the brightness of the multiple default gray scale is adjusted.
In alternatively possible embodiment, according to the maximum reflection brightness of the display screen, the display screen it is white
Field chromaticity coordinates and standard white field chromaticity coordinates, adjust the image quality parameter of the projection device, comprising:
When the maximum reflection brightness of the display screen is greater than preset threshold, adjusts and the white flat of the projection device is set
Weigh coefficient, until the white field chromaticity coordinates of the display screen is identical as standard white field chromaticity coordinates；
When the maximum reflection brightness of the display screen is less than or equal to the preset threshold, adjusts and be arranged in the projection
The white balance coefficients of equipment, until the white field chromaticity coordinates of the display screen and the difference of standard white field chromaticity coordinates are in preset difference value model
In enclosing；According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted.
In alternatively possible embodiment, the white field chromaticity coordinates according to the display screen adjusts the projection
The purity of the pre-set color point of equipment, comprising:
Obtain the standard purity of corresponding, each default colour of white field chromaticity coordinates of the display screen；
The purity of each default colour is adjusted to corresponding standard purity.
In alternatively possible embodiment, according to the environmental light brightness that the display screen reflects, adjust the multiple
The brightness of default gray scale, comprising:
According to the environmental light brightness that the display screen reflects, each default corresponding normal brightness of gray scale is determined；
By the brightness regulation of each default gray scale to corresponding normal brightness.
In alternatively possible embodiment, according to the optical signal that first optical sensor receives, described in acquisition
The maximum reflection brightness of display screen, comprising:
When white image is projected to the display screen by projection device, obtain what first optical sensor collected
First optical signal；
Obtain first curve of spectrum of first optical signal；
The first brightness is extracted in first curve of spectrum, includes the reflection of the display screen in first brightness
The brightness of white image, the display screen reflection environment light brightness and direct irradiation first optical sensor ring
The brightness of border light；
Obtain the second optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second light to pass
The optical signal of sensor；
Obtain second curve of spectrum of second optical signal；
The second brightness is extracted in second curve of spectrum, second brightness is that direct irradiation is passed in second light
The brightness of the environment light of sensor；
The difference of first brightness and second brightness is determined as the maximum reflection brightness.
In alternatively possible embodiment, according to the optical signal that first optical sensor receives, described in acquisition
The white field chromaticity coordinates under the maximum reflection brightness of display screen, comprising:
When white image is projected to the display screen by projection device, obtain what first optical sensor collected
First optical signal；
Obtain the second optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second light to pass
The optical signal of sensor；
According to first optical signal and second optical signal, determine that third optical signal, the third optical signal include
The ambient light signal of the optical signal of the white image of the reflection of the display screen and display screen reflection；
Obtain the third curve of spectrum of the third optical signal；
The white field chromaticity coordinates under the maximum reflection brightness of the display screen is extracted in the third curve of spectrum.
In alternatively possible embodiment, according to the optical signal that first optical sensor receives, described in acquisition
The minimal reflection brightness of display screen, comprising:
When black image is projected to the display screen by projection device, obtain what first optical sensor collected
4th optical signal；
Obtain the 4th curve of spectrum of the 4th optical signal；
The 4th brightness is extracted in the 4th curve of spectrum, includes the reflection of the display screen in the 4th brightness
The brightness of black image, the display screen reflection environment light brightness and direct irradiation first optical sensor ring
The brightness of border light；
Obtain the 5th optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, the 5th optical signal is to shine directly into second light to pass
The optical signal of sensor；
Obtain the 5th curve of spectrum of the 5th optical signal；
The 5th brightness is extracted in the 5th curve of spectrum, the 5th brightness is that direct irradiation is passed in second light
The brightness of the environment light of sensor；
The difference of 4th brightness and the 5th brightness is determined as the maximum reflection brightness.
Second aspect, the embodiment of the present invention provide a kind of image display system, including projection device, display screen and the first light
Sensor, first optical sensor are located at except the display screen, and are located at the corresponding viewing areas of the display screen,
In,
The projection device is used for, and pre-set image is projected to the display screen so that the display screen show it is described pre-
If image；
First optical sensor is used for, and acquires the optical signal that the display screen reflects the pre-set image；
The projection device is also used to, and obtains the received optical signal of the first optical sensor, and according to the optical signal
The maximum reflection brightness, minimal reflection brightness and white field chromaticity coordinates of the display screen are obtained, the maximum reflection brightness is described
The sum of the brightness of the maximum display brightness of display screen and the environment light of display screen reflection, the minimal reflection brightness is described
The sum of the brightness of the minimum display brightness of display screen and the environment light of display screen reflection；
The projection device is also used to, according to the maximum reflection brightness, the minimal reflection brightness and the display screen
White field chromaticity coordinates, adjust the image quality parameter of the projection device, wherein the image quality parameter includes white balance coefficients, default
At least one of the purity of color point and the corresponding brightness of each grayscale.
The third aspect, the embodiment of the present invention provide a kind of image display device, are applied to optical projection system, the optical projection system
Including projection device, display screen and the first optical sensor, the projection device is used to pre-set image being projected to the display screen,
Described device includes: the first acquisition module, the second acquisition module and adjustment module, wherein
The first acquisition module is used for, and obtains the optical signal that first optical sensor receives, and the optical signal is
The display screen reflexes to the signal of first optical sensor when showing the pre-set image, first optical sensor is located at
Except the display screen, and it is located at the corresponding viewing areas of the display screen；
The second acquisition module is used for, and according to the optical signal that first optical sensor receives, obtains the display
White field chromaticity coordinates of maximum reflection brightness, minimal reflection brightness and the display screen of screen under the maximum reflection brightness, institute
State the sum of the brightness of the environment light of maximum display brightness and display screen reflection that maximum reflection brightness is the display screen, institute
State the sum of the brightness of the environment light of the minimum display brightness that minimal reflection brightness is the display screen and display screen reflection；
The adjustment module is used for, according to the maximum reflection brightness, the minimal reflection brightness and the display screen
White field chromaticity coordinates, adjusts the image quality parameter of the projection device, wherein the image quality parameter includes white balance coefficients, default face
At least one of the purity of color dot and the corresponding brightness of each grayscale.
In a kind of possible embodiment, the first acquisition module is specifically used for:
It controls the projection device and the corresponding light of multiple pre-set images is projected into the display screen respectively, so that described
Display screen shows the pre-set image；
Obtain the optical signal that first optical sensor receives the display screen reflection, the light letter of the display screen reflection
It include the optical signal of pre-set image reflection of the display screen to display and the ambient light signal of display screen reflection in number.
In alternatively possible embodiment, the adjustment module includes acquiring unit, judging unit, the first adjusting list
Member and second adjusts unit, wherein
The acquiring unit is used for, and according to the maximum reflection brightness and minimal reflection brightness, obtains the display screen
Contrast；
The judging unit is used for, and judges whether the contrast is less than default contrast；
The first adjusting unit is used for, when the judging unit judges that the contrast is less than default contrast, root
The environmental light brightness that the display screen reflection is obtained according to the optical signal that first optical sensor receives, according to the display screen
White field chromaticity coordinates, standard white field chromaticity coordinates and the display screen reflection environmental light brightness, adjust the picture of the projection device
Matter parameter；
The second adjusting unit is used for, and judges that the contrast is greater than or equal to default contrast in the judging unit
When, according to the maximum reflection brightness of the display screen, the white field chromaticity coordinates and standard white field chromaticity coordinates of the display screen, adjust institute
State the image quality parameter of projection device.
In alternatively possible embodiment, the first adjusting unit is specifically used for:
The white balance coefficients that the projection device is set are adjusted, until the white field chromaticity coordinates and standard white of the display screen
The difference of field chromaticity coordinates is within the scope of preset difference value；
According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted；
According to the environmental light brightness that the display screen reflects, the brightness of the multiple default gray scale is adjusted.
In alternatively possible embodiment, the second adjusting unit is specifically used for:
When the maximum reflection brightness of the display screen is greater than preset threshold, adjusts and the white flat of the projection device is set
Weigh coefficient, until the white field chromaticity coordinates of the display screen is identical as standard white field chromaticity coordinates；
When the maximum reflection brightness of the display screen is less than or equal to the preset threshold, adjusts and be arranged in the projection
The white balance coefficients of equipment, until the white field chromaticity coordinates of the display screen and the difference of standard white field chromaticity coordinates are in preset difference value model
In enclosing；According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted.
In alternatively possible embodiment, the adjustment module is specifically used for:
Obtain the standard purity of corresponding, each default colour of white field chromaticity coordinates of the display screen；
The purity of each default colour is adjusted to corresponding standard purity.
In alternatively possible embodiment, the adjustment module is specifically used for:
According to the environmental light brightness that the display screen reflects, each default corresponding normal brightness of gray scale is determined；
By the brightness regulation of each default gray scale to corresponding normal brightness.
In alternatively possible embodiment, the second acquisition module is specifically used for:
When white image is projected to the display screen by projection device, obtain what first optical sensor collected
First optical signal；
Obtain first curve of spectrum of first optical signal；
The first brightness is extracted in first curve of spectrum, includes the reflection of the display screen in first brightness
The brightness of white image, the display screen reflection environment light brightness and direct irradiation first optical sensor ring
The brightness of border light；
Obtain the second optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second light to pass
The optical signal of sensor；
Obtain second curve of spectrum of second optical signal；
The second brightness is extracted in second curve of spectrum, second brightness is that direct irradiation is passed in second light
The brightness of the environment light of sensor；
The difference of first brightness and second brightness is determined as the maximum reflection brightness.
In alternatively possible embodiment, the second acquisition module is specifically used for:
When white image is projected to the display screen by projection device, obtain what first optical sensor collected
First optical signal；
Obtain the second optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second light to pass
The optical signal of sensor；
According to first optical signal and second optical signal, determine that third optical signal, the third optical signal include
The ambient light signal of the optical signal of the white image of the reflection of the display screen and display screen reflection；
Obtain the third curve of spectrum of the third optical signal；
The white field chromaticity coordinates under the maximum reflection brightness of the display screen is extracted in the third curve of spectrum.
In alternatively possible embodiment, the second acquisition module is specifically used for:
When black image is projected to the display screen by projection device, obtain what first optical sensor collected
4th optical signal；
Obtain the 4th curve of spectrum of the 4th optical signal；
The 4th brightness is extracted in the 4th curve of spectrum, includes the reflection of the display screen in the 4th brightness
The brightness of black image, the display screen reflection environment light brightness and direct irradiation first optical sensor ring
The brightness of border light；
Obtain the 5th optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, the 5th optical signal is to shine directly into second light to pass
The optical signal of sensor；
Obtain the 5th curve of spectrum of the 5th optical signal；
The 5th brightness is extracted in the 5th curve of spectrum, the 5th brightness is that direct irradiation is passed in second light
The brightness of the environment light of sensor；
The difference of 4th brightness and the 5th brightness is determined as the maximum reflection brightness.
Image quality parameter adjusting method provided in an embodiment of the present invention, apparatus and system are set when needing to adjust to be arranged in projection
When image quality parameter in standby, pre-set image can be incident upon display screen by projection device, and display screen can will be incident upon display screen
On light and projection environment light on a display screen be reflected into the first optical sensor, the first optical sensor is located at display
Except screen, and it is located at the corresponding viewing areas of display screen.The light that projection device can be collected according to the first optical sensor,
The image quality parameter of projection device is adjusted, since the first optical sensor is located at except display screen, and it is corresponding to be located at display screen
Viewing areas, that is, the position of the first optical sensor with viewing the position of user of display screen it is similar, therefore, the first light sensing
The light that device receives is similar with the light that user watches in display screen, and projection device is watched according to human eye
Actual conditions in display screen, are automatically adjusted the image quality parameter of projection device, and image quality parameter adjusting not only can be improved
Accuracy, can also improve image quality parameter adjusting efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the architecture diagram of optical projection system provided in an embodiment of the present invention；
Fig. 2 is the flow diagram one of image quality parameter adjusting method provided in an embodiment of the present invention；
Fig. 3 is the sectional view of the Fei Nier lens jacket of the strong display screen of environment resistant light ability provided in an embodiment of the present invention；
Fig. 4 is colored curve synoptic diagram provided in an embodiment of the present invention；
Fig. 5 is the flow diagram two of image quality parameter adjusting method provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram one of image quality parameter regulating device provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram two of image quality parameter regulating device provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the architecture diagram of image display system provided in an embodiment of the present invention.Referring to Figure 1, including by display screen 101
With projection device 102 and the first optical sensor 103.The light that projection device 102 emits is incident upon on display screen 101, and
Picture is presented in display screen 101.First optical sensor 103 is located at except 101 screens of display, and it is corresponding to be located at display screen 101
Viewing areas also can be set in other positions, only for example, the first optical sensor 103 can be set on projection device 102
Want the first optical sensor 103 that can receive the optical signal of the reflection of display screen 101, so that the first optical sensor 103 connects
The optical signal of the display screen reflection received is similar to the optical signal that display screen 101 is reflected into human eye.Optionally, shown in the application
Optical projection system can be laser projection system, and certainly, optical projection system can also be other types of optical projection system, and the application is to this
It is not especially limited.
In actual application, the final display effect of display screen is determined jointly by display equipment 102 and display screen 101
It is fixed, therefore, after having replaced display screen 101 in projection systems, since the characteristic of different display screens is different, in order to guarantee to show
The display effect of display screen needs that the image quality parameter in projection device 102 is adjusted.
In this application, when needing to adjust the image quality parameter in projection device, projection device can be thrown pre-set image
It penetrates in display screen, so that display screen shows pre-set image, display screen is when showing pre-set image, the light meeting of display screen reflection
It is reflected into the first optical sensor, so that the first optical sensor can collect the optical signal that display screen reflects pre-set image.
Projection device can obtain maximum reflection brightness, the minimal reflection of display screen according to the optical signal that the first optical sensor collects
Brightness and white field chromaticity coordinates, and projection is set according to the maximum reflection brightness of display screen, minimal reflection brightness and white field chromaticity coordinates
Standby image quality parameter is adjusted, and since the first optical sensor is located at except display screen, and is located at the corresponding viewing area of display screen
Domain, that is, the position of the first optical sensor is similar with the viewing position of user of display screen, and therefore, the first optical sensor receives
Light it is similar with the light that user watches in display screen, in the display screen that projection device is watched according to human eye
Actual conditions, the image quality parameter of projection device is adjusted automatically, not only can be improved image quality parameter adjusting accuracy,
The efficiency of image quality parameter adjusting can also be improved.
In the following, technical solution shown in the application is described in detail by specific embodiment.It should be noted that
Several specific embodiments can be combined with each other below, for the same or similar content, no longer carry out in various embodiments
It repeats.
Fig. 2 is the flow diagram one of image display method provided in an embodiment of the present invention.Fig. 2 is referred to, this method can
To include:
S201, the optical signal that the first optical sensor receives is obtained, which is that display screen shows anti-when pre-set image
It is incident upon the signal of the first optical sensor, sensor is located at except display screen, and is located at the corresponding viewing areas of display screen.
The executing subject of the embodiment of the present invention can be projection device, or image quality parameter regulating device.Optionally,
The image quality parameter regulating device can be set in projection device.Optionally, image quality parameter regulating device can pass through software reality
Existing, image quality parameter regulating device can also being implemented in combination with by software and hardware.
In actual application, when user needs that the image quality parameter of projection device is adjusted, user can be
Regulating command is inputted in projection device, for example, user can be by the default shortcut key in control equipment (for example, remote controler)
Clicking operation is carried out, inputs regulating command in projection device to realize, certainly, user can also choose in projection device and preset
Custom menu option, with realize regulating command is inputted in projection device.It certainly, in actual application, can be with root
Regulating command is inputted in projection device according to other feasible implementations, the present invention is not especially limit this.
It is, of course, also possible to execute method shown in Fig. 2 embodiment automatically when optical projection system starts for the first time to realize to throwing
The image quality parameter of shadow equipment is adjusted.The embodiment of the present invention does not make the trigger condition for executing method shown in Fig. 2 embodiment
It is specific to limit.
When needing to adjust the image quality parameter of projection device, multiple pre-set images are projected display respectively by projection device
Screen, so that the display screen shows the pre-set image.
Optionally, pre-set image can be gray level image, for example, pre-set image includes white image and black image.
Optionally, the corresponding light of different pre-set images can be projected display according to prefixed time interval by projection device
Screen, for example, first pre-set image first can be projected display screen by projection device, in prefixed time interval and then by the
Two pre-set images project display screen, until all corresponding light of pre-set image is projected to display screen.For example, should
Prefixed time interval can be 1 second, 2 seconds etc., in actual application, can be set according to actual needs between the preset time
Every.
Projection device is every a kind of pre-set image is projected into display screen after, display screen reflects pre-set image, by
It is located at except display screen in the first optical sensor and is located at the corresponding viewing areas of display screen, that is, the position of the first optical sensor
Position when watching display screen with user is similar, and therefore, the optical signal that the first optical sensor receives is received with user's human eye
Optical signal it is similar.
S202, the optical signal received according to the first optical sensor obtain maximum reflection brightness, the minimal reflection of display screen
The white field chromaticity coordinates of brightness and display screen under maximum reflection brightness.
Wherein, maximum reflection brightness be display screen maximum display brightness and display screen reflection environment light brightness it
With the sum of the brightness for the environment light that minimal reflection brightness is reflected for the minimum display brightness and display screen of display screen.
Optionally, the environment resistant light ability of different types of display screen is different, in the following, in conjunction with Fig. 3, to the anti-ring of display screen
Border light ability is illustrated.
Fig. 3 is the sectional view of the Fei Nier lens jacket of the strong display screen of environment resistant light ability provided in an embodiment of the present invention.
Fig. 3 is referred to, each zigzag upper surface A is provided with painting in the sectional view of the Fei Nier lens jacket of display screen
Layer, the coating have the function of light absorption, that is, the light irradiated on the coating layer will not reflect.The lower surface B of each sawtooth
For reflecting surface, the light for receiving is reflected.In actual application, environment light is usually radiated at the upper surface of sawtooth
A, so that upper surface A absorbs environment light, so that environment light will not be reflected into human eye, the light of projection device transmitting is usual
It is radiated at the lower surface B of sawtooth, so that lower surface B reflects environment light, so that human eye can see projection device projection
Picture in display screen.From the foregoing, it will be observed that the environment resistant light ability of display screen shown in Fig. 3 is stronger.
The fabric of the display screen weak for environment resistant light is usually white plastic curtain fabric, and white plastic curtain fabric is all to what is received
Light carries out diffusing reflection, that is, the light that projection device emits can be reflexed to people with the environment light received by display screen
Eye.
Optionally, the maximum display brightness of display screen is the maximum brightness when performing image display, for example, display screen
Maximum display brightness can be displayed in white brightness when image for display screen.The minimum display brightness of display screen be display screen into
Minimum brightness when row image is shown, for example, when the minimum display brightness of display screen can be display screen display black image
Brightness.
In chromatic diagram, a chromaticity coordinates (x, y) indicates a kind of color.White field chromaticity coordinates refers to that the corresponding color of white is sat
Mark.In embodiments of the present invention, when the characteristic of image quality parameter and display screen in projection device mutually mismatches, then the first light
Sensor is not pure white according to the color that the optical signal received determines that obtained white field chromaticity coordinates indicates, that is, works as throwing
When the characteristic of image quality parameter and display screen in shadow equipment mutually mismatches, the white that display screen is shown is not pure white
Color.For example, display screen is shown when the white balance coefficients of projection device and display screen mutually mismatch the reflectivity of each primary colours
The possible rubescent, greening of white out turns blue.
Optionally, the maximum reflection brightness of display screen can be obtained by following feasible implementation:
Mode 1, when white image is projected to display screen by projection device, obtain the first optical sensor collects the
One optical signal obtains first curve of spectrum of the first optical signal, the first brightness is extracted in first curve of spectrum, and bright by first
Degree is determined as the maximum reflection brightness of display screen.
In this way, due to include in the first brightness for being extracted in first curve of spectrum display screen maximum display
Brightness, display screen reflection environmental light brightness and shine directly into the environmental light brightness of the first optical sensor, therefore, according to above-mentioned
Mode 1 determines that the poor accuracy of obtained maximum reflection brightness according to aforesaid way 1, can still be shown with quick obtaining
The maximum reflection brightness of display screen.
Mode 2, when white image is projected to display screen by projection device, obtain the first optical sensor collects the
One optical signal obtains first curve of spectrum of the first optical signal, extracts the first brightness in first curve of spectrum, in the first brightness
The brightness of the environment light of brightness, the display screen reflection of the white image of reflection including display screen and direct irradiation are in the first light
The brightness of the environment light of sensor.The second optical signal that the second optical sensor collects is obtained, the second optical sensor is located at aobvious
Except display screen, and it is located at except the corresponding viewing areas of display screen, the second optical signal is to shine directly into the second optical sensor
Optical signal obtains second curve of spectrum of the second optical signal, the second brightness is extracted in second curve of spectrum, the second brightness is straight
The brightness for being radiated at the environment light of the second optical sensor is connect, it is bright that the difference of the first brightness and the second brightness is determined as maximum reflection
Degree.
In this way, the accuracy of the maximum reflection brightness of the display screen acquired is higher.
Optionally, display screen can be obtained by the feasible implementation of at least the following two kinds under maximum reflection brightness
White field chromaticity coordinates:
Mode 1, when white image is projected to display screen by projection device, obtain the first optical sensor collects the
One optical signal obtains first curve of spectrum of the first optical signal, white field chromaticity coordinates is extracted in first curve of spectrum, and will extract
Obtained white field chromaticity coordinates is determined as white field chromaticity coordinates of the display screen under maximum reflection brightness.
In this way, determine that the poor accuracy of obtained maximum reflection brightness still, can according to aforesaid way 1
White field chromaticity coordinates of the display screen under maximum reflection brightness is obtained with quick obtaining.
Mode 2, when white image is projected to display screen by projection device, obtain the first optical sensor collects the
One optical signal obtains the second optical signal that the second optical sensor collects, and the second optical sensor is located at except display screen, and position
Except the corresponding viewing areas of display screen, the second optical signal is the optical signal for shining directly into the second optical sensor, according to
One optical signal and the second optical signal determine that third optical signal, third optical signal include the light of the white image of the reflection of display screen
The ambient light signal of signal and display screen reflection, obtains the third curve of spectrum of third optical signal, mentions in the third curve of spectrum
Take the white field chromaticity coordinates under maximum reflection brightness of display screen.
For example, can carry out making poor processing to the first optical signal and the second optical signal, to obtain third optical signal.
In this way, the accuracy of white field chromaticity coordinates of the display screen acquired under maximum reflection brightness compared with
It is high.
Optionally, the minimal reflection brightness of display screen can be obtained by following feasible implementation:
Mode 1, when black image is projected to display screen by projection device, obtain the first optical sensor collects the
Four optical signals obtain the 4th curve of spectrum of the 4th optical signal, the 4th brightness are extracted in the 4th curve of spectrum, and bright by the 4th
Degree is determined as the minimal reflection brightness of display screen.
In this way, due to include in the 4th brightness extracted in the 4th curve of spectrum display screen maximum display
Brightness, display screen reflection environmental light brightness and shine directly into the environmental light brightness of the first optical sensor, therefore, according to above-mentioned
Mode 1 determines that the poor accuracy of obtained minimal reflection brightness according to aforesaid way 1, can still be shown with quick obtaining
The minimal reflection brightness of display screen.
Mode 2, when black image is projected to display screen by projection device, obtain the first optical sensor collects the
Four optical signals obtain the 4th curve of spectrum of the 4th optical signal, the 4th brightness of extraction in the 4th curve of spectrum, in the 4th brightness
The brightness of the environment light of brightness, the display screen reflection of the black image of reflection including display screen and direct irradiation are in the first light
The brightness of the environment light of sensor.The 5th optical signal that the second optical sensor collects is obtained, the second optical sensor is located at aobvious
Except display screen, and it is located at except the corresponding viewing areas of display screen, the 5th optical signal is to shine directly into the second optical sensor
Optical signal obtains the 5th curve of spectrum of the 5th optical signal, the 5th brightness is extracted in the 5th curve of spectrum, the 5th brightness is straight
The brightness for being radiated at the environment light of the second optical sensor is connect, it is bright that the difference of the 4th brightness and the 5th brightness is determined as maximum reflection
Degree.
In this way, the accuracy of the minimal reflection brightness of the display screen acquired is higher.
S203, it is sat according to the white field color of maximum reflection brightness, minimal reflection brightness and display screen under maximum reflection brightness
Mark, adjusts the image quality parameter of projection device.
Wherein, image quality parameter include in white balance coefficients, the purity of pre-set color point and the corresponding brightness of each grayscale extremely
Few one kind.
Certainly, in actual application, image quality parameter can also include other, such as brightness, contrast, clarity
Deng the embodiment of the present invention is not specifically limited the content that image quality parameter includes.
Optionally, proportionality coefficient when white balance coefficients refer to through three kinds of primary colours synthesis white.For example, it is assumed that white is
W, three kinds of primary colours are respectively R, G, B, then W=a*R+b*G+c*B, then a, b, c are the proportionality coefficient of synthesis white.When display screen pair
When the reflectivity difference of each primary colours, the white balance coefficients of display screen are also different.
White balance coefficients are provided in projection device, projection device emits white light according to white balance coefficients.Work as throwing
The white balance coefficients that are arranged in shadow equipment, it is consistent with the white balance coefficients of display screen of adaptation when, then can guarantee in display screen
The white of middle presentation is purer, and otherwise, the white presented in display screen is not pure, for example, what is presented in display screen is white
Possible rubescent, greening of color etc..Meanwhile projection device also relies on white balance coefficients to the adjustment of other colors, therefore, in order to make
Correct color can be shown according to the light that projection device emits by obtaining display screen, it is also desirable to white in projection device to being arranged in
Coefficient of balance is adjusted.
In the following, the purity of the point of pre-set color shown in the application is described in detail in conjunction with Fig. 4.Fig. 4 is that the present invention is real
The colored curve synoptic diagram of example offer is provided.
Refer to Fig. 4, in the direction of abscissa from left to right, be followed successively by purple to it is red, to green, to blue gradually
Become, include 28 points in abscissa, each point indicates a kind of default colour, optionally, default colour can for the standard colour of skin,
Standard rape flower is yellow, standard blue is sky blue etc., for example, the 14th corresponding color of point in Fig. 4 is the standard colour of skin.
Fig. 4 is referred to, ordinate indicates the purity of color, and the corresponding numerical value of ordinate is bigger, and the purity of color is higher, phase
The color answered is denseer.For example, for the 6th point in Fig. 4, when the 6th numerical value of point on the vertical scale is 20, then the 6th
The corresponding color of point be it is bright red, with the reduction of the numerical value on ordinate, the corresponding red of the 6th point is successively thin out.
When the white field coordinate difference of display screen, then it is different to preset colored corresponding purity, that is, need according to white field coordinate
The purity of pre-set color is adjusted, to realize the adjusting to the purity of pre-set color point.For example, the white field coordinate when display screen is
When (x1, y1), then the purity of the 14th point (the standard colour of skin) should be -16, that is, the face of abscissa only where the 14th point
When the concentration of color is -16, display screen could be made to show the standard colour of skin.When the white field coordinate of display screen is (x2, y2), then the
The purity of 14 points (the standard colour of skin) should be -16.5, that is, only where the 14th point the concentration of the color of abscissa be -
When 16.5, display screen could be made to show the standard colour of skin.
When display screen environment resistant light ability difference, the grayscale level that will lead to the picture of display display is deteriorated, that is, Yong Huguan
The difference of the corresponding brightness of gray scales observe, different becomes smaller, so that picture seems the fubai that seems.At this point it is possible to adjust difference
The brightness value of gray scale so that the difference of the brightness value of different gray scales becomes larger, and then avoids grayscale level from being deteriorated, for example, can adjust
Image gamma curve is saved, to realize the brightness value for adjusting different gray scales.It should be noted that in the embodiment shown in fig. 5, it is right
The detailed description for adjusting the brightness of projection device is illustrated, and is no longer repeated herein.
By adjusting the purity of pre-set color point, the form and aspect or tone that adjust the image that eye-observation arrives may be implemented.
Image quality parameter adjusting method provided in an embodiment of the present invention is joined when needing to adjust the image quality being arranged in projection device
When number, pre-set image can be incident upon in display screen by projection device, display screen can by projection image on a display screen, with
And projection reflection of ambient light on a display screen is to the first optical sensor.Projection device can be acquired according to the first optical sensor
The image quality parameter of projection device is adjusted in the light arrived, since the first optical sensor is located at except display screen, and is located at aobvious
The corresponding viewing areas of display screen, that is, the position of the first optical sensor is similar with the viewing position of user of display screen, therefore, the
The light that one optical sensor receives is similar with the light that user watches in display screen, allows projection device according to people
Actual conditions in the display screen of eye viewing, are automatically adjusted the image quality parameter of projection device, image quality not only can be improved
The accuracy of parameter regulation can also improve the efficiency of image quality parameter adjusting.
On the basis of any one above-mentioned embodiment, optionally, it can be adjusted and be thrown by following feasible implementation
The image quality parameter of shadow equipment, specifically, embodiment shown in Figure 5.
Fig. 5 is the flow diagram two of image quality parameter adjusting method provided in an embodiment of the present invention.Refer to Fig. 5, the party
Method may include:
S501, according to maximum reflection brightness and minimal reflection brightness, obtain the contrast of display screen.
Optionally, the ratio of maximum reflection brightness and minimal reflection brightness can be determined as to the contrast of display screen.
Optionally, it is assumed that the maximum display brightness of display screen is Lmax, and the minimum display brightness of display screen is Lmin, then false
If display screen is La to the reflecting brightness of environment light, then the maximum reflection brightness of display screen is Lmax+La, and the minimum of display screen is anti-
Penetrating brightness is Lmin+La, correspondingly, the contrast of display screen are as follows:
For example, it is assumed that the maximum display brightness Lmax=300 of display screen, the minimum display brightness Lmin=0.2 of display screen.
When display screen to the reflecting brightness of environment light is 0 when, then the contrast of display screen are as follows:When display screen is to ring
The reflecting brightness La=0.5 of border light, the then contrast of display screen are as follows:
From the foregoing, it will be observed that the contrast of display screen is smaller when reflecting brightness of the display screen to environment light is bigger.Due to display
The environment resistant light ability of screen is stronger, and display screen is smaller to the reflecting brightness of environment light, therefore, can pass through the contrast of display screen
Reflect the environment resistant light ability of display screen.
S502, judge whether contrast is less than default contrast.
If so, executing S503-S506.
If it is not, then executing S507-S509.
Optionally, when contrast is less than default contrast, then illustrate that the environment resistant light ability of display screen is poor, work as comparison
When degree is greater than or equal to default contrast, then illustrate that the environment resistant light ability of display screen is stronger.For example, default contrast can be
Arbitrary number between 400-600 in actual application, can be set according to actual needs the default contrast certainly, this
Inventive embodiments are not especially limited this.
In actual application, the display screen poor for environment resistant light ability, to the more demanding of brightness, therefore,
When the environment resistant light ability of the display screen of projection device adaptation is poor, the brightness of reduction display screen as few as possible is needed.?
The brightness of display screen would generally be reduced during the chromaticity coordinates for adjusting display screen, it is therefore, poor for environment resistant light ability
Display screen needs the chromaticity coordinates of adjusting display screen as few as possible.
Display screen stronger for environment resistant light ability, the requirement to brightness is lower, therefore, when showing for projection device adaptation
When the environment resistant light ability of display screen is stronger, can it is appropriate sacrifice display screen brightness to guarantee optimal color representation, that is, can
Adequately to adjust the chromaticity coordinates of display screen, to guarantee the optimal color representation of display screen.
S503, the white balance coefficients for adjusting projection device, until the white field chromaticity coordinates and standard white field chromaticity coordinates of display screen
Difference within the scope of preset difference value.
Optionally, it is assumed that white balance coefficients be (a, b, c) be preset in projection device standard white field chromaticity coordinates (x0,
Y0), it is assumed that the white field chromaticity coordinates of display screen is (x, y).When x is greater than x0, then the value of a is reduced, when y is greater than y0, then reduces b
Value, when x be less than x0 or y be less than y0 when, then reduce c.
Optionally, it when reducing the value of a or b or c, is reduced according to preset step-length, that is, reduce the value of a or b or c default
Numerical value.
It should be noted that after carrying out Primary regulation to white balance coefficients, due to the white balance coefficients of projection device
Changed, therefore, the white field coordinate of the display screen acquired is also changed.Continue the white field that will have been changed
Chromaticity coordinates is compared with standard white field chromaticity coordinates, and adjusts white balance coefficients according to comparison result, and so on, until display screen
White field chromaticity coordinates and standard white field chromaticity coordinates difference within the scope of preset difference value.
For example, it is assumed that the corresponding preset difference value of horizontal axis is S1, the corresponding preset difference value of the longitudinal axis is S2, then | x-x0 | < S1, |
y-y0|<S2。
In S503, since the environment resistant light ability of display screen is poor, display screen is higher to brightness requirement, therefore, in order to
It avoids causing the brightness of display screen to be lower since the white field chromaticity coordinates to display screen is excessively adjusted, then not to display screen
White field chromaticity coordinates carries out excessive adjusting, but by the white field chromaticity coordinates of display screen be adjusted to reference color coordinate a range it
It is interior, at this point, having certain difference between the white field chromaticity coordinates and reference color coordinate of display screen, so that the white displays of display screen are not
It is enough pure, correspondingly, the colored display of display screen is also not pure enough, in order to enable display screen can be shown preferably as far as possible
Color, therefore, it is necessary to further execute S504, to adjust the purity of the pre-set color point of display screen.
S504, the white field chromaticity coordinates according to display screen, adjust the purity of the pre-set color point of projection device.
It should be noted that white field chromaticity coordinates signified in S504 refers to the display screen obtained after the adjusting by S503
White field chromaticity coordinates.
The standard purity of the corresponding default colour of different white field chromaticity coordinates is different, can preset different white field colors
Corresponding relationship between coordinate and the standard purity for presetting colour, so as to adjust projection device according to the corresponding relationship
The purity of pre-set color point.
For example, white field chromaticity coordinates and the corresponding relationship preset between colored standard purity can be as shown in table 2:
Table 2
Optionally, adjust projection device pre-set color point purity when, can according to the white field chromaticity coordinates of display screen,
The standard purity of corresponding pre-set color is inquired in the corresponding relationship shown in table 2, and the purity of pre-set color is adjusted to mark
Quasi- purity.
S505, the optical signal received according to the first optical sensor obtain the environmental light brightness of display screen reflection.
Poor display screen possible for environment resistant light, after ambient lighting is mapped to display screen, user sees display screen
The whole fubai of picture meeting of display, so that the grayscale level that display screen is shown is unobvious, that is, the contrast of display screen reduces.
Optionally, the reflecting brightness that display screen is obtained according to the optical signal that sensor receives, emits brightness and display screen
The difference of display brightness be environmental light brightness.
S506, the environmental light brightness reflected according to display screen, adjust the brightness of multiple default gray scales.
Optionally, default gray scale can be black field, 10% grey, 20% grey, 30% grey, 40% grey, 50% ash
Color, 60% grey, 70% grey, 80% grey, 90% grey, 100% white.
Optionally, the brightness of multiple default gray scales can be adjusted by following feasible implementation: anti-according to display screen
The environmental light brightness penetrated determines each default corresponding normal brightness of gray scale；By the brightness regulation of each gray scale to corresponding
Standard is bright.
Optionally, each default ash can be determined according to the environmental light brightness and default corresponding relationship that display screen reflects
Spend corresponding normal brightness, wherein include multiple default environmental light brightness and each default environment light in default corresponding relationship
The normal brightness of the corresponding each default gray scale of brightness.
Optionally, default corresponding relationship can be as shown in table 3:
Table 3
Optionally, when adjusting the brightness of multiple default gray scales, the environmental light brightness that can be reflected according to display screen, in table
The normal brightness of each default gray scale is searched in corresponding relationship shown in 3, and sets standard for the brightness of each default gray scale
Brightness.
It optionally, can be by the transmission power of adjusting projection device, to realize the brightness for adjusting default gray scale.
It should be noted that S503 can be only executed, alternatively, can hold when judging that contrast is less than default contrast
Row S503-S504, alternatively, S503, S505-S506 can be executed, alternatively, executing S503-S506.That is, when judging that contrast is small
When default contrast, the white balance coefficients of projection device can be only adjusted, also the white balance coefficients of adjustable projection device
With the purity of pre-set color point, also the white balance coefficients of adjustable projection device and the corresponding brightness of each grayscale, can also be adjusted
Save the white balance coefficients of projection device, the purity and the corresponding brightness of each grayscale of pre-set color point.
When executing S503-S506, S504 may be performed simultaneously with S505-S506, can also sequentially execute, and the present invention is real
Example is applied to be not especially limited the execution sequence of S504 and S505-S506.
S507, judge whether the maximum reflection brightness of display screen is greater than preset threshold.
If so, executing S508.
If it is not, executing S509.
S508, the white balance coefficients for adjusting projection device, until the white field chromaticity coordinates and standard white field chromaticity coordinates of display screen
It is identical.
In S508, it has been determined that the environment resistant light ability of display screen is stronger, that is, requirement of the display screen to brightness is lower, into
One step, when determining that the maximum reflection brightness for obtaining display screen is greater than preset threshold, illustrate that the current brightness of display screen is larger,
Therefore, the brightness of some display screens can be sacrificed to ensure the optimum color display effect of display screen, that is, can directly adjust throwing
The white balance coefficients of shadow equipment, until the white field chromaticity coordinates of display screen is identical as standard white field chromaticity coordinates, at this point, due to display screen
White field chromaticity coordinates it is identical as standard white field chromaticity coordinates, therefore, the color rendering effect of display screen can be made to reach best.
S509, the white balance coefficients for adjusting projection device, until the white field chromaticity coordinates and standard white field chromaticity coordinates of display screen
Difference within the scope of preset difference value.
It should be noted that the implementation procedure of S509 may refer to S503, no longer repeated herein.
S510, the white field chromaticity coordinates according to display screen, adjust the purity of the pre-set color point of projection device.
It should be noted that the implementation procedure of S510 may refer to S504, no longer repeated herein.
It should also be noted that, determining that contrast is bright more than or equal to the maximum reflection of default contrast and display screen
Degree be less than or equal to preset threshold when, can only execute S509 or, S509-S510 can be executed, alternatively, can execute
S509, S505-S506, alternatively, S509-S510, S505-S506 can also be performed.That is, determining that it is pre- that contrast is greater than or equal to
If the maximum reflection brightness of contrast and display screen is less than or equal to preset threshold, the white flat of projection device can be only adjusted
Weigh coefficient, the also purity of the white balance coefficients of adjustable projection device and pre-set color point, also adjustable projection device
White balance coefficients and the corresponding brightness of each grayscale, can also adjust the white balance coefficients of projection device, the purity of pre-set color point,
And the corresponding brightness of each grayscale.
Fig. 6 is the structural schematic diagram one of image display device provided in an embodiment of the present invention.The image display device application
In optical projection system, the optical projection system includes projection device, display screen and the first optical sensor, and the projection device is used for will be pre-
If image is projected to the display screen, described device includes: that the first acquisition module 11, second obtains module 12 and adjustment module
13, wherein
The first acquisition module 11 is used for, and obtains the optical signal that first optical sensor receives, the optical signal
The signal of first optical sensor, first optical sensor position are reflexed to when showing the pre-set image for the display screen
Except the display screen, and it is located at the corresponding viewing areas of the display screen；
The second acquisition module 12 is used for, and according to the optical signal that first optical sensor receives, is obtained described aobvious
White field chromaticity coordinates of maximum reflection brightness, minimal reflection brightness and the display screen of display screen under the maximum reflection brightness,
The maximum reflection brightness is the sum of the brightness of the maximum display brightness of the display screen and the environment light of display screen reflection,
The minimal reflection brightness is the sum of the brightness of the minimum display brightness of the display screen and the environment light of display screen reflection；
The adjustment module 13 is used for, according to the maximum reflection brightness, the minimal reflection brightness and the display screen
White field chromaticity coordinates, adjust the image quality parameter of the projection device, wherein the image quality parameter includes white balance coefficients, default
At least one of the purity of color point and the corresponding brightness of each grayscale.
It should be noted that image display device shown in the embodiment of the present invention can execute shown in above method embodiment
Technical solution, realization principle and beneficial effect are similar, are no longer repeated herein.
In a kind of possible embodiment, the first acquisition module 11 is specifically used for:
It controls the projection device and the corresponding light of multiple pre-set images is projected into the display screen respectively, so that described
Display screen shows the pre-set image；
Obtain the optical signal that first optical sensor receives the display screen reflection, the light letter of the display screen reflection
It include the optical signal of pre-set image reflection of the display screen to display and the ambient light signal of display screen reflection in number.
Fig. 7 is the structural schematic diagram two of image display device provided in an embodiment of the present invention.The base of embodiment shown in Fig. 6
On plinth, Fig. 7 is referred to, the adjustment module 13 includes that acquiring unit 131, judging unit 132, first adjust unit 133 and the
Two adjust unit 134, wherein
The acquiring unit 131 is used for, and according to the maximum reflection brightness and minimal reflection brightness, obtains the display screen
Contrast；
The judging unit 132 is used for, and judges whether the contrast is less than default contrast；
The first adjusting unit 133 is used for, when the judging unit judges that the contrast is less than default contrast,
The environmental light brightness that the display screen reflection is obtained according to the optical signal that first optical sensor receives, according to the display
The environmental light brightness that white field chromaticity coordinates, standard white field chromaticity coordinates and the display screen of screen reflect, adjusts the projection device
Image quality parameter；
The second adjusting unit 134 is used for, and judges that the contrast is greater than or equal to default pair in the judging unit
When than spending, according to the maximum reflection brightness of the display screen, the white field chromaticity coordinates and standard white field chromaticity coordinates of the display screen, adjust
Save the image quality parameter of the projection device.
In alternatively possible embodiment, the first adjusting unit 133 is specifically used for:
The white balance coefficients that the projection device is set are adjusted, until the white field chromaticity coordinates and standard white of the display screen
The difference of field chromaticity coordinates is within the scope of preset difference value；
According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted；
According to the environmental light brightness that the display screen reflects, the brightness of the multiple default gray scale is adjusted.
In alternatively possible embodiment, the second adjusting unit 134 is specifically used for:
When the maximum reflection brightness of the display screen is greater than preset threshold, adjusts and the white flat of the projection device is set
Weigh coefficient, until the white field chromaticity coordinates of the display screen is identical as standard white field chromaticity coordinates；
When the maximum reflection brightness of the display screen is less than or equal to the preset threshold, adjusts and be arranged in the projection
The white balance coefficients of equipment, until the white field chromaticity coordinates of the display screen and the difference of standard white field chromaticity coordinates are in preset difference value model
In enclosing；According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted.
In alternatively possible embodiment, the adjustment module 13 is specifically used for:
Obtain the standard purity of corresponding, each default colour of white field chromaticity coordinates of the display screen；
The purity of each default colour is adjusted to corresponding standard purity.
In alternatively possible embodiment, the adjustment module 13 is specifically used for:
According to the environmental light brightness that the display screen reflects, each default corresponding normal brightness of gray scale is determined；
By the brightness regulation of each default gray scale to corresponding normal brightness.
In alternatively possible embodiment, the second acquisition module 12 is specifically used for:
When white image is projected to the display screen by projection device, obtain what first optical sensor collected
First optical signal；
Obtain first curve of spectrum of first optical signal；
The first brightness is extracted in first curve of spectrum, includes the reflection of the display screen in first brightness
The brightness of white image, the display screen reflection environment light brightness and direct irradiation first optical sensor ring
The brightness of border light；
Obtain the second optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second light to pass
The optical signal of sensor；
Obtain second curve of spectrum of second optical signal；
The second brightness is extracted in second curve of spectrum, second brightness is that direct irradiation is passed in second light
The brightness of the environment light of sensor；
The difference of first brightness and second brightness is determined as the maximum reflection brightness.
In alternatively possible embodiment, the second acquisition module 12 is specifically used for:
When white image is projected to the display screen by projection device, obtain what first optical sensor collected
First optical signal；
Obtain the second optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second light to pass
The optical signal of sensor；
According to first optical signal and second optical signal, determine that third optical signal, the third optical signal include
The ambient light signal of the optical signal of the white image of the reflection of the display screen and display screen reflection；
Obtain the third curve of spectrum of the third optical signal；
The white field chromaticity coordinates under the maximum reflection brightness of the display screen is extracted in the third curve of spectrum.
In alternatively possible embodiment, the second acquisition module 12 is specifically used for:
When black image is projected to the display screen by projection device, obtain what first optical sensor collected
4th optical signal；
Obtain the 4th curve of spectrum of the 4th optical signal；
The 4th brightness is extracted in the 4th curve of spectrum, includes the reflection of the display screen in the 4th brightness
The brightness of black image, the display screen reflection environment light brightness and direct irradiation first optical sensor ring
The brightness of border light；
Obtain the 5th optical signal that the second optical sensor collects, second optical sensor be located at the display screen it
Outside, and it is located at except the corresponding viewing areas of the display screen, the 5th optical signal is to shine directly into second light to pass
The optical signal of sensor；
Obtain the 5th curve of spectrum of the 5th optical signal；
The 5th brightness is extracted in the 5th curve of spectrum, the 5th brightness is that direct irradiation is passed in second light
The brightness of the environment light of sensor；
The difference of 4th brightness and the 5th brightness is determined as the maximum reflection brightness.
It should be noted that image quality parameter regulating device shown in the embodiment of the present invention can execute above method embodiment
Shown in technical solution, realization principle and beneficial effect are similar, are no longer repeated herein.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than to it
Limitation；Although the embodiment of the present invention is described in detail referring to foregoing embodiments, those skilled in the art
It is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, either to part of or
All technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution this hair
The range of bright example scheme.
Claims (12)
1. a kind of image display method, which is characterized in that be applied to optical projection system, the optical projection system includes projection device, shows
Display screen and the first optical sensor, the projection device are used to pre-set image being projected to the display screen, which comprises
The optical signal that first optical sensor receives is obtained, the optical signal is that the display screen shows the pre-set image
When reflex to the signal of first optical sensor, first optical sensor is located at except the display screen, and is located at described
The corresponding viewing areas of display screen；
According to the optical signal that first optical sensor receives, maximum reflection brightness, the minimal reflection of the display screen are obtained
The white field chromaticity coordinates of brightness and the display screen under the maximum reflection brightness, the maximum reflection brightness are the display screen
Maximum display brightness and the display screen reflection environment light the sum of brightness, the minimal reflection brightness be the display screen
Minimum display brightness and the display screen reflection environment light the sum of brightness；
According to the white field chromaticity coordinates of the maximum reflection brightness, the minimal reflection brightness and the display screen, the throwing is adjusted
The image quality parameter of shadow equipment, wherein the image quality parameter includes that white balance coefficients, the purity of pre-set color point and each grayscale are corresponding
At least one of brightness.
2. the method according to claim 1, wherein obtain the optical signal that first optical sensor receives,
Including
It controls the projection device and the corresponding light of multiple pre-set images is projected into the display screen respectively, so that the display
Screen shows the pre-set image；
The optical signal that first optical sensor receives display screen reflection is obtained, in the optical signal of the display screen reflection
Including the display screen to the optical signal of the pre-set image reflection of display and the ambient light signal of display screen reflection.
3. method according to claim 1 or 2, which is characterized in that according to the maximum reflection brightness, the minimal reflection
The white field chromaticity coordinates of brightness and the display screen, adjusts the image quality parameter of the projection device, comprising:
According to the maximum reflection brightness and minimal reflection brightness, the contrast of the display screen is obtained；
Judge whether the contrast is less than default contrast；
If so, the environmental light brightness of the display screen reflection is obtained according to the optical signal that first optical sensor receives,
According to the environmental light brightness that the white field chromaticity coordinates, standard white field chromaticity coordinates and the display screen of the display screen reflect, institute is adjusted
State the image quality parameter of projection device；
If it is not, then being sat according to the maximum reflection brightness of the display screen, the white field chromaticity coordinates of the display screen and standard white field color
Mark, adjusts the image quality parameter of the projection device.
4. according to the method described in claim 3, it is characterized in that, according to white field chromaticity coordinates, the standard white field of the display screen
The environmental light brightness of chromaticity coordinates and display screen reflection, adjusts the image quality parameter of the projection device, comprising:
The white balance coefficients that the projection device is set are adjusted, until the white field chromaticity coordinates and standard white field color of the display screen
The difference of coordinate is within the scope of preset difference value；
According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted；
According to the environmental light brightness that the display screen reflects, the brightness of the multiple default gray scale is adjusted.
5. according to the method described in claim 3, it is characterized in that, according to the maximum reflection brightness of the display screen, described aobvious
The white field chromaticity coordinates and standard white field chromaticity coordinates of display screen, adjust the image quality parameter of the projection device, comprising:
When the maximum reflection brightness of the display screen is greater than preset threshold, the white balance system that the projection device is set is adjusted
Number, until the white field chromaticity coordinates of the display screen is identical as standard white field chromaticity coordinates；
When the maximum reflection brightness of the display screen is less than or equal to the preset threshold, adjusts and be arranged in the projection device
White balance coefficients, until the display screen white field chromaticity coordinates and standard white field chromaticity coordinates difference in preset difference value range
It is interior；According to the white field chromaticity coordinates of the display screen, the purity of the pre-set color point of the projection device is adjusted.
6. method according to claim 4 or 5, which is characterized in that the white field chromaticity coordinates according to the display screen is adjusted
Save the purity of the pre-set color point of the projection device, comprising:
Obtain the standard purity of corresponding, each default colour of white field chromaticity coordinates of the display screen；
The purity of each default colour is adjusted to corresponding standard purity.
7. method according to claim 4 or 5, which is characterized in that according to the environmental light brightness that the display screen reflects, adjust
Save the brightness of the multiple default gray scale, comprising:
According to the environmental light brightness that the display screen reflects, each default corresponding normal brightness of gray scale is determined；
By the brightness regulation of each default gray scale to corresponding normal brightness.
8. method according to claim 1 or 2, which is characterized in that believed according to the light that first optical sensor receives
Number, obtain the maximum reflection brightness of the display screen, comprising:
When white image is projected to the display screen by projection device, first optical sensor collects first is obtained
Optical signal；
Obtain first curve of spectrum of first optical signal；
The first brightness is extracted in first curve of spectrum, includes the white of the reflection of the display screen in first brightness
The brightness of image, the display screen reflection environment light brightness and direct irradiation first optical sensor environment light
Brightness；
The second optical signal that the second optical sensor collects is obtained, second optical sensor is located at except the display screen,
And be located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second optical sensor
Optical signal；
Obtain second curve of spectrum of second optical signal；
The second brightness is extracted in second curve of spectrum, second brightness is direct irradiation in second optical sensor
Environment light brightness；
The difference of first brightness and second brightness is determined as the maximum reflection brightness.
9. method according to claim 1 or 2, which is characterized in that believed according to the light that first optical sensor receives
Number, obtain the white field chromaticity coordinates under the maximum reflection brightness of the display screen, comprising:
When white image is projected to the display screen by projection device, first optical sensor collects first is obtained
Optical signal；
The second optical signal that the second optical sensor collects is obtained, second optical sensor is located at except the display screen,
And be located at except the corresponding viewing areas of the display screen, second optical signal is to shine directly into second optical sensor
Optical signal；
According to first optical signal and second optical signal, determine that third optical signal, the third optical signal include described
The ambient light signal of the optical signal of the white image of the reflection of display screen and display screen reflection；
Obtain the third curve of spectrum of the third optical signal；
The white field chromaticity coordinates under the maximum reflection brightness of the display screen is extracted in the third curve of spectrum.
10. method according to claim 1 or 2, which is characterized in that believed according to the light that first optical sensor receives
Number, obtain the minimal reflection brightness of the display screen, comprising:
When black image is projected to the display screen by projection device, the first optical sensor collects the 4th is obtained
Optical signal；
Obtain the 4th curve of spectrum of the 4th optical signal；
The 4th brightness is extracted in the 4th curve of spectrum, includes the black of the reflection of the display screen in the 4th brightness
The brightness of image, the display screen reflection environment light brightness and direct irradiation first optical sensor environment light
Brightness；
The 5th optical signal that the second optical sensor collects is obtained, second optical sensor is located at except the display screen,
And be located at except the corresponding viewing areas of the display screen, the 5th optical signal is to shine directly into second optical sensor
Optical signal；
Obtain the 5th curve of spectrum of the 5th optical signal；
The 5th brightness is extracted in the 5th curve of spectrum, the 5th brightness is direct irradiation in second optical sensor
Environment light brightness；
The difference of 4th brightness and the 5th brightness is determined as the maximum reflection brightness.
11. a kind of image display system, which is characterized in that including projection device, display screen and the first optical sensor, described first
Optical sensor is located at except the display screen, and is located at the corresponding viewing areas of the display screen, wherein
The projection device is used for, and pre-set image is projected to the display screen, so that the display screen shows the default figure
Picture；
First optical sensor is used for, and acquires the optical signal that the display screen reflects the pre-set image；
The projection device is also used to, and obtains the received optical signal of the first optical sensor, and obtain according to the optical signal
Maximum reflection brightness, minimal reflection brightness and the white field chromaticity coordinates of the display screen, the maximum reflection brightness are the display
The sum of the brightness of the maximum display brightness of screen and the environment light of display screen reflection, the minimal reflection brightness are the display
The sum of the brightness of the minimum display brightness of screen and the environment light of display screen reflection；
The projection device is also used to, according to the white of the maximum reflection brightness, the minimal reflection brightness and the display screen
Field chromaticity coordinates, adjusts the image quality parameter of the projection device, wherein the image quality parameter includes white balance coefficients, pre-set color
At least one of the purity of point and the corresponding brightness of each grayscale.
12. a kind of image display device, which is characterized in that be applied to optical projection system, the optical projection system includes projection device, shows
Display screen and the first optical sensor, the projection device are used to pre-set image being projected to the display screen, and described device includes: the
One obtains module, the second acquisition module and adjustment module, wherein
The first acquisition module is used for, and obtains the optical signal that first optical sensor receives, the optical signal is described
Display screen reflexes to the signal of first optical sensor when showing the pre-set image, first optical sensor is located at described
Except display screen, and it is located at the corresponding viewing areas of the display screen；
The second acquisition module is used for, and according to the optical signal that first optical sensor receives, obtains the display screen
The white field chromaticity coordinates of maximum reflection brightness, minimal reflection brightness and the display screen under the maximum reflection brightness, it is described most
Big reflecting brightness is the sum of the brightness of the maximum display brightness of the display screen and the environment light of display screen reflection, it is described most
Small reflecting brightness is the sum of the brightness of the minimum display brightness of the display screen and the environment light of display screen reflection；
The adjustment module is used for, according to the white field of the maximum reflection brightness, the minimal reflection brightness and the display screen
Chromaticity coordinates adjusts the image quality parameter of the projection device, wherein the image quality parameter includes white balance coefficients, pre-set color point
Purity and at least one of the corresponding brightness of each grayscale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047913.9A CN109729327B (en) | 2017-10-31 | 2017-10-31 | Image display method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047913.9A CN109729327B (en) | 2017-10-31 | 2017-10-31 | Image display method, device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109729327A true CN109729327A (en) | 2019-05-07 |
| CN109729327B CN109729327B (en) | 2022-01-28 |
Family
ID=66293138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711047913.9A Active CN109729327B (en) | 2017-10-31 | 2017-10-31 | Image display method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109729327B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133261A (en) * | 2020-11-03 | 2020-12-25 | 歌尔科技有限公司 | Brightness adjusting method, device and system of display equipment |
| CN112333495A (en) * | 2019-11-04 | 2021-02-05 | 青岛海信激光显示股份有限公司 | Focus switching method, display device and system |
| CN115695758A (en) * | 2022-11-03 | 2023-02-03 | 四川长虹电器股份有限公司 | A projection system automatic white balance debugging method, device and storage medium |
| CN116132642A (en) * | 2021-11-15 | 2023-05-16 | 成都极米科技股份有限公司 | Projection control method, apparatus, system and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020153472A1 (en) * | 2001-04-19 | 2002-10-24 | Seiichirou Yano | Automatic image-quality adjustment system |
| CN1604632A (en) * | 2003-09-29 | 2005-04-06 | 精工爱普生株式会社 | Drive control of projector and light source lamp for projector |
| US20080137039A1 (en) * | 2006-12-11 | 2008-06-12 | Samsung Electronics Co., Ltd | Apparatus and method for projecting image considering screen condition |
| CN101217674A (en) * | 2007-01-04 | 2008-07-09 | 三星电子株式会社 | Apparatus and method for ambient light adaptive color correction |
| US20110051100A1 (en) * | 2009-08-25 | 2011-03-03 | Acer Incorporated | Method for compensating light reflection of projection frame and projection apparatus |
| CN104318912A (en) * | 2014-10-23 | 2015-01-28 | 赵辉 | Method and device for detecting environmental light brightness |
| CN105592278A (en) * | 2014-10-21 | 2016-05-18 | 宏碁股份有限公司 | Electronic device and projection picture adjusting method |
| CN105609027A (en) * | 2016-03-10 | 2016-05-25 | 杭州虹视科技有限公司 | Laser large screen display device for eliminating color temperature difference |
-
2017
- 2017-10-31 CN CN201711047913.9A patent/CN109729327B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020153472A1 (en) * | 2001-04-19 | 2002-10-24 | Seiichirou Yano | Automatic image-quality adjustment system |
| CN1604632A (en) * | 2003-09-29 | 2005-04-06 | 精工爱普生株式会社 | Drive control of projector and light source lamp for projector |
| US20080137039A1 (en) * | 2006-12-11 | 2008-06-12 | Samsung Electronics Co., Ltd | Apparatus and method for projecting image considering screen condition |
| CN101217674A (en) * | 2007-01-04 | 2008-07-09 | 三星电子株式会社 | Apparatus and method for ambient light adaptive color correction |
| US20080165292A1 (en) * | 2007-01-04 | 2008-07-10 | Samsung Electronics Co., Ltd. | Apparatus and method for ambient light adaptive color correction |
| US20110051100A1 (en) * | 2009-08-25 | 2011-03-03 | Acer Incorporated | Method for compensating light reflection of projection frame and projection apparatus |
| CN105592278A (en) * | 2014-10-21 | 2016-05-18 | 宏碁股份有限公司 | Electronic device and projection picture adjusting method |
| CN104318912A (en) * | 2014-10-23 | 2015-01-28 | 赵辉 | Method and device for detecting environmental light brightness |
| CN105609027A (en) * | 2016-03-10 | 2016-05-25 | 杭州虹视科技有限公司 | Laser large screen display device for eliminating color temperature difference |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333495A (en) * | 2019-11-04 | 2021-02-05 | 青岛海信激光显示股份有限公司 | Focus switching method, display device and system |
| CN112383802A (en) * | 2019-11-04 | 2021-02-19 | 青岛海信激光显示股份有限公司 | Focus switching method, projection display device and system |
| CN112333495B (en) * | 2019-11-04 | 2022-12-30 | 青岛海信激光显示股份有限公司 | Focus switching method, display device and system |
| CN112133261A (en) * | 2020-11-03 | 2020-12-25 | 歌尔科技有限公司 | Brightness adjusting method, device and system of display equipment |
| CN116132642A (en) * | 2021-11-15 | 2023-05-16 | 成都极米科技股份有限公司 | Projection control method, apparatus, system and storage medium |
| CN115695758A (en) * | 2022-11-03 | 2023-02-03 | 四川长虹电器股份有限公司 | A projection system automatic white balance debugging method, device and storage medium |
| CN115695758B (en) * | 2022-11-03 | 2025-04-15 | 四川长虹电器股份有限公司 | A projection system automatic white balance debugging method, device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109729327B (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7292252B2 (en) | Projection type image display system, projector, program, information storage medium and image projection method capable of avoiding obstacles in the projection area | |
| JP4009851B2 (en) | Projection-type image display system, projector, program, information storage medium, and image projection method | |
| US10217244B2 (en) | Method and data processing device for computer-assisted hair coloring guidance | |
| US6894697B2 (en) | Environment-compliant image display system and program | |
| JP6224822B2 (en) | Hair consultation tool apparatus and method | |
| US20160360167A1 (en) | Output light monitoring for benchmarking and enhanced control of a display system | |
| CN109729327A (en) | Image display method, apparatus and system | |
| CN102006346A (en) | Projector device | |
| RU2470381C2 (en) | Image display device, television receiver, method of controlling image display device and method of controlling television receiver | |
| US20090096917A1 (en) | Scanning Projector Ambient Lighting System | |
| JP4591720B2 (en) | Projection-type image display system, projector, program, information storage medium, and image projection method | |
| CN101383138B (en) | Method, system and display for color adjustment | |
| CN101163253B (en) | Method and device for searching new color temperature point | |
| CN101287080A (en) | A method for adjusting the picture quality of a TV set and the TV set | |
| JP5725271B2 (en) | Color correction system | |
| TW200816158A (en) | Method and apparatus of looking for new color temperature point | |
| CN102197411A (en) | Target display for gamma calibration | |
| CN105430365B (en) | Projection fusion dark field processing method and fusion equipment | |
| CN110168629B (en) | Texture display device, texture display method, and recording medium | |
| CN116935787A (en) | Display screen brightness and chroma correction method based on conference focus prediction | |
| JP4591719B2 (en) | Projection-type image display system, projector, program, information storage medium, and image projection method | |
| US20170126961A1 (en) | Image adjusting apparatus | |
| JP2015138108A (en) | Display and image quality adjusting unit | |
| CN111275774A (en) | Method for acquiring image under microscope and electronic equipment | |
| KR20240106369A (en) | A method of measuring an ambient backgound effect on a 3d virtual image and an apparatus thereon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |