CN115881008A - Picture detection method, display panel, device and computer readable storage medium - Google Patents

Abstract

The application discloses a picture detection method, a display panel, a device and a computer readable storage medium, and belongs to the technical field of display. The picture detection method comprises the following steps: detecting the minimum detection unit line by line in a preset detection area; if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function; after the picture detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the picture detection function is exited, wherein the second preset value is smaller than the first preset value. The method for fixing the detection area by using two coordinates is eliminated, the detection mode is changed into line-by-line detection, the entry condition of the PDF function is perfected, more application conditions are covered, the defects of the detection mode for starting the PDF function in the prior art are overcome, and the applicability of the picture detection function of the display panel is enhanced.

Description

Screen detection method, display panel, device, and computer-readable storage medium

technical field

The present application relates to the field of display technology, in particular to a picture detection method, a display panel, a device, and a computer-readable storage medium.

Background technique

When TFT-LCD (Thin film transistor liquid crystal display, thin film transistor liquid crystal display) is driven, the VCOM (common electrode) is easily disturbed by the data line, resulting in voltage jitter, which leads to abnormal phenomena such as crosstalk (crosstalk) on the display screen .

At present, in order to improve this problem, the prior art introduces the PDF (picture detection) function, but the detection method used in the prior art to activate the PDF function is to draw a rectangular area as the detection based on the two set coordinates area, and then calculate the polarity reversal area in this detection area to determine whether to activate the PDF function.

However, this method has the following disadvantages: if a certain display polarity combination area that causes abnormal jitter of VCOM is a special-shaped area, this detection function will be invalid, because the polarity inversion area calculated by the above method does not reach the set value. Threshold, although the display panel has an abnormal picture, but because the detection area cannot cover the abnormal area, the TCON (timing controller) cannot start the PDF function.

Contents of the invention

The main purpose of the present application is to provide a screen detection method, a display panel, a device, and a computer-readable storage medium, aiming at overcoming the disadvantages of the detection method used to start the PDF function in the prior art, and enhancing the screen detection of the display panel. Applicability of test functions.

In order to achieve the above purpose, the present application provides a screen detection method, the screen detection method includes:

Detect the minimum detection unit line by line in the preset detection area;

If it is detected that the number of the minimum detection units in the detection area is greater than a first preset value, the screen detection function is activated;

After starting the picture detection function, if it is detected that the number of the minimum detection units in the detection area is less than a second preset value, then exit the picture detection function, wherein the second preset The set value is smaller than the first preset value.

Optionally, before the step of detecting the minimum detection unit line by line in the preset detection area, the picture detection method further includes:

Obtain a default detection configuration, and set a default detection area according to the detection configuration.

Optionally, the step of setting a preset detection area according to the detection configuration includes:

If the detection configuration includes a start detection line number and an end detection line number, the display area between the start detection line number and the end detection line number is set as a preset detection area.

Optionally, the step of setting a preset detection area according to the detection configuration further includes:

If the detection configuration does not include the number of start detection lines and the number of end detection lines, the entire display area is set as the default detection area.

Optionally, before the step of detecting the minimum detection unit line by line in the preset detection area, the picture detection method further includes:

Select at least one pixel as the minimum detection unit.

Optionally, after the step of selecting at least one pixel point as the minimum detection unit, the screen detection method further includes:

The gray scale corresponding to the sub-pixel of the pixel is set according to a preset index.

Optionally, the step of starting the screen detection function includes:

Outputting the high-low level timing of the polarity inversion control signal to the driving circuit, so that the driving circuit changes the corresponding electrode polarity according to the high-low level timing.

In addition, in order to achieve the above purpose, the present application also provides a display device, the display device comprising:

A detection module, the detection module is used to detect the minimum detection unit line by line in the preset detection area;

An execution module, the execution module is configured to start the screen detection function if it detects that the number of the minimum detection units in the detection area is greater than a first preset value;

The execution module is further configured to exit the screen detection function if it detects that the number of the minimum detection units in the detection area is less than a second preset value after starting the screen detection function, Wherein, the second preset value is smaller than the first preset value.

In addition, in order to achieve the above object, the present application also provides a display panel, which includes: a memory, a processor, and a computer program stored in the memory and operable on the processor, the computer program When executed by the processor, the steps of the above-mentioned frame detection method are realized.

In addition, in order to achieve the above object, the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned screen detection method is implemented A step of.

The present application proposes a screen detection method, a display panel, a device, and a computer-readable storage medium, which overcome the disadvantages of the detection method used to activate the PDF function in the prior art. In the frame detection method, the minimum detection unit is first detected line by line in a preset detection area; if it is detected that the number of the minimum detection units in the detection area is greater than a first preset value, Then start the screen detection function; after starting the screen detection function, if it is detected that the number of the minimum detection units in the detection area is less than a second preset value, then exit the screen detection function, Wherein, the second preset value is smaller than the first preset value. This application removes the method of using two coordinates to fix the detection area and detect in the detection area, changes the detection method to line-by-line detection, improves the entry conditions of the PDF function, covers more applications, and enhances The applicability of the PDF function of the display panel.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is a part of the embodiment of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a schematic diagram of the driving method of TFT-LCD;

FIG. 2 is a simplified schematic circuit diagram of each sub-pixel control circuit;

Figure 3 is a schematic diagram of the waveform of data S-out compared to VCOM;

Fig. 4 is a schematic diagram of a polarity inversion mode of several rows of pixel electrodes;

FIG. 5 is a schematic diagram of a detection area division method in the prior art;

FIG. 6 is a schematic flow chart of a method for detecting images provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of an adjustable timing interval of a polarity inversion signal according to an embodiment of the present application;

Fig. 8 is a schematic diagram of an adjustment mode corresponding to the high and low levels of the polarity inversion signal and the polarity of the pixel electrode according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a display device provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a hardware structure of a display panel provided by an embodiment of the present application.

Explanation of reference numbers:

label name label name V1+ The first channel is higher than VCOM G1 switch signal transmission line V2- The second channel is lower than VCOM S data signal transmission line V3+ The third way is higher than VCOM T control switch gate Gate drive signal Clc LCD Capacitor Gn-1 Gn-1 line signal Cst storage capacitor Gn Gn line signal VCOM common pole Gn+1 Gn+1 line signal S-out data output signal Off closure On turn on

Detailed ways

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, it will be apparent to those skilled in the art that embodiments of the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the present application with unnecessary detail.

It should be noted that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than in the flowchart. The terms "first", "second" and the like in the specification and claims and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.

It should also be understood that references to "one embodiment" or "some embodiments" described in the description of the embodiments of the present application mean that specific features described in conjunction with the embodiments of the present application are included in one or more embodiments of the embodiments of the present application. , structure or characteristics. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

Compared with traditional CRT (Cathode Ray Tube, cathode ray tube) TV and plasma TV, one of the advantages of LCD TV is power saving. LCD TV has only half the power consumption of CRT of the same size, and it is much lower than plasma; compared with traditional CRT Compared with that, liquid crystals also perform better in terms of environmental protection. This is because there are no high-voltage components like CRTs inside the liquid crystal display, so it will not cause excessive radioactive rays due to high voltage. The display area of the liquid crystal display itself has no Radiation can be said, only a small amount of electromagnetic waves from the drive circuit, as long as the casing is strictly sealed to reduce EMI (Electromagnetic Interference, electromagnetic interference), so its radiation index is generally lower than that of CRT; and the LCD display has a large viewing area, and the LCD display The display purpose is achieved by controlling the state of the liquid crystal molecules through the electrodes on the display screen. Even if the screen is enlarged, its volume will not increase proportionally (only the size is increased without increasing the thickness, so many products provide wall-mounted functions, allowing users to It is more space-saving), and it is much lighter in weight than traditional monitors with the same display area. The weight of LCD TVs is about 1/3 of traditional TVs, so LCD monitors are also called cold monitors or environmentally friendly monitors. Currently, LCD monitors It is developing towards higher resolution, higher display quality and larger size.

When TFT-LCD is driven, the driving method is Line-by-Line (progressive scanning). Referring to Figure 1, when the Gn signal is high, the TFT corresponding to this row is turned on, and the data in the column direction can be written into the pixel. The simplified schematic diagram of each sub-pixel can be referred to Figure 2. Figure 2 includes T for controlling the switch, liquid crystal capacitor Clc, storage capacitor Cst, G line responsible for transmitting switching signals, and S line responsible for transmitting data. One end of Cst and Clc is the pixel electrode and the other One end is the common pole (VCOM). Just because liquid crystal charging and discharging is a capacitor structure, if a DC (direct current) circuit is used to drive, then the residual charge will inevitably be generated at both ends of the capacitor, which will appear on the display screen. In order to avoid this phenomenon, the general DC Changed to AC (alternating current), and the liquid crystal works by relying on different voltages at both ends, different rotation, and different light transmission. The waveform diagram of the data S-out is shown in Figure 3, and Figure 4 is the corresponding One of the polarity inversion methods (dot inversion), "±" is the voltage level compared to VCOM, that is, "+" is higher than VCOM, and "-" is lower than VCOM, and VCOM is easily affected Voltage jitter occurs due to data line interference, and this voltage jitter will cause abnormalities such as crosstalk (crosstalk) on the screen.

The interference of VCOM is because when the display screen is displaying, all the data lines with positive and negative polarity will superimpose the influence on VCOM. If it is +, the VCOM voltage will jitter upwards. If it is -, the VCOM voltage will go up. Lower jitter, in the prior art, in order to improve this problem, a PDF function is introduced. The PDF process is generally divided into three stages: receiving signal stage: TCON receives front-end input data; detecting screen stage: TCON automatically detects the screen; PDF execution stage: TCON outputs DOT_C/POLC/POL signals according to the settings; as shown in Figure 5 As shown, in the prior art, two coordinates (V_start, H_start) and (V_end, H_end) are generally set in the display area, and a rectangle is drawn with these coordinates to obtain a detection area, and then the detection area is Calculate the area within, when the inversion area occupies a part of the entire detection area (generally ≥85%), the PDF function will start; but this method will have great disadvantages, when a certain display polarity that causes VCOM abnormal jitter When the assembly area is a special-shaped area, this detection function will be invalid. When the calculated inversion area does not reach 80% of the detection area, although the picture is different, TCON cannot recognize it. This is because: two coordinates (V_start, H_start), (V_end, H_end) cannot cover the abnormal-shaped area, and the detection area occupied by the abnormal-shaped area is <85%.

Based on this, the embodiments of the present application provide a method for detecting a screen, a display panel, a device, and a computer-readable storage medium, which overcome the disadvantages of the detection method for activating the PDF function in the prior art. In the frame detection method, the minimum detection unit is first detected line by line in a preset detection area; if it is detected that the number of the minimum detection units in the detection area is greater than a first preset value, Then start the screen detection function; after starting the screen detection function, if it is detected that the number of the minimum detection units in the detection area is less than a second preset value, then exit the screen detection function, Wherein, the second preset value is smaller than the first preset value. This application removes the method of using two coordinates to fix the detection area and detect in the detection area, changes the detection method to line-by-line detection, improves the entry conditions of the PDF function, covers more applications, and enhances The applicability of the PDF function of the display panel.

The image detection method, display panel, device, and computer-readable storage medium provided by the embodiments of the present application are specifically described through the following embodiments. Firstly, the image detection method in the embodiments of the present application is described.

An embodiment of the present application provides a screen detection method. Referring to FIG. 6, FIG. 6 is a schematic flowchart of a screen detection method provided by an embodiment of the present application. The screen detection method can be applied to a display panel, as shown in FIG. As shown in 6, the frame detection method provided by this embodiment includes steps S10 to S30.

Step S10, detecting the minimum detection unit line by line in the preset detection area;

It should be noted that in this embodiment, the execution subject is the display panel, and the display panel dynamically detects whether the number of minimum detection units exceeds the standard in the preset detection area through TCON, and then judges whether the display screen is abnormal according to the detection result . Wherein, the preset detection area may be the entire display area, or the area to be detected between the specified initial detection line number and the end detection line number, which can be flexibly adjusted according to specific requirements in practical applications.

Further, in some feasible embodiments, before the above step S10, the frame detection method further includes:

Step A, obtaining a default detection configuration, and setting a default detection area according to the detection configuration.

It should be understood that in this embodiment, the default detection configuration can be set by the administrator. For example, TCON is set to detect the minimum detection unit from the nth row until the end of the n+mth row, then the nth row The display area between the row and the n+mth row is the default detection area; for another example, the specific number of detection rows may not be set, and the default default detection area is the entire display area.

Further, in some feasible embodiments, the step of setting a preset detection area according to the detection configuration in the above step S01 includes:

Step A1, if the detection configuration includes a start detection line number and an end detection line number, then set the display area between the start detection line number and the end detection line number as a preset detection measurement area.

In this embodiment, if the acquired detection configuration includes the number of start detection lines and the number of end detection lines, for example, TCON is set to detect the minimum detection unit from the nth line until the end of the n+mth line, then start The number of start detection lines is the nth line, the end detection line number is the n+mth line, and the display area between the nth line and the n+mth line is the preset detection area.

Further, in some feasible embodiments, the step of setting a preset detection area according to the detection configuration in the above step S01 further includes:

Step A2, if the detection configuration does not include the number of start detection lines and the number of end detection lines, then set the entire display area as the default detection area.

In this embodiment, if the acquired detection configuration does not include the number of start detection lines and the number of end detection lines, the default default detection area is the entire display area.

Further, in some feasible embodiments, before the above step S10, the frame detection method further includes:

Step B, selecting at least one pixel as the minimum detection unit.

Further, in some feasible embodiments, after the above step B, the frame detection method further includes:

Step C, setting the gray scale corresponding to the sub-pixel of the pixel according to a preset index.

It should be noted that, in this embodiment, the smallest detection unit may be one pixel or a collection of multiple pixels, and the preset index may be the brightness and darkness parameters of RGB three colors in each pixel.

Exemplarily, taking four pixels as an example, the first pixel is RGB's G dark, RB is bright, the second pixel is RGB's RB dark, G is bright; the third pixel's RGB, RB is dark, G is bright; The RGB of the fourth pixel, G is dark, and RB is bright; among them, the minimum unit is only one display setting, and other displays can also be defined by yourself. The key is that the four pixels are the minimum detection unit, that is, there is no limit to the corresponding sub-pixel gray The gray scale corresponding to the RGB of each pixel can be set independently, which is not limited in this embodiment.

Step S20, if it is detected that the number of the minimum detection units in the detection area is greater than a first preset value, start the screen detection function;

In this embodiment, when it is detected that the minimum number of detection units in a frame is greater than or equal to k (corresponding to the first preset value), it is deemed to hit the PDF, that is, the picture detection function is activated, and at this time TCON outputs the level of the corresponding signal , and then the driver IC (driver circuit) outputs different electrode polarities after receiving the signal. As for which combination to choose, it needs to be determined according to which combination can solve crosstalk or greenish (green dot). Wherein, k may be a freely set value greater than 0.

Further, in some feasible embodiments, the step of activating the screen detection function in the above step S20 includes:

Step S201 , outputting the high-low level sequence of the polarity inversion control signal to the drive circuit, so that the drive circuit changes the polarity of the corresponding electrode according to the high-low level sequence.

In this embodiment, referring to Fig. 7 and Fig. 8, the timing interval of the DOT_C/POLC/POL signal includes Vact, Vtotal, Vblank and Next frame. Since the above-mentioned DOT_C/POL/POLC can change in any interval of VBLANK, when the PDF function After startup, TCON outputs the H/L timing of the DOT_C/POLC/POL signal to the drive circuit, so that the drive circuit changes the 6 columns of pixel electrodes Y1, Y2, Y3, Y4, Y5 and Y6 according to the level of the three polarity inversion control signals Polarity, thereby avoiding the abnormality that will appear on the display screen.

Step S30, after starting the screen detection function, if it is detected that the number of the minimum detection units in the detection area is less than a second preset value, exit the screen detection function, wherein the The second preset value is smaller than the first preset value.

It should be noted that after the PDF function is started, the detection of the minimum detection unit will still be performed dynamically, and when the number of the minimum detection unit is detected ≤ g (for the second preset value), the PDF function can be exited. Because the polarity inversion adjustment of part of the pixel electrodes has been completed at this time, the abnormality of the display screen is avoided. Wherein, g may be a freely set value smaller than k.

This embodiment proposes a screen detection method, which overcomes the disadvantages of the detection method used to activate the PDF function in the prior art. In the frame detection method, the minimum detection unit is first detected line by line in a preset detection area; if it is detected that the number of the minimum detection units in the detection area is greater than a first preset value, Then start the screen detection function; after starting the screen detection function, if it is detected that the number of the minimum detection units in the detection area is less than a second preset value, then exit the screen detection function, Wherein, the second preset value is smaller than the first preset value. This application removes the method of using two coordinates to fix the detection area and detect in the detection area, changes the detection method to line-by-line detection, improves the entry conditions of the PDF function, covers more applications, and enhances The applicability of the PDF function of the display panel.

In addition, the embodiment of the present application also proposes a display device. Referring to FIG. 9, FIG. 9 is a schematic structural diagram of a display device provided in an embodiment of the present application. As shown in FIG. 9, in this embodiment, the display device It includes: a detection module 100 and an execution module 200 .

A detection module 100, the detection module 100 is used to detect the minimum detection unit line by line in the preset detection area;

An execution module 200, configured to start the screen detection function if it is detected that the number of the minimum detection units in the detection area is greater than a first preset value;

The execution module 200 is further configured to exit the screen detection function if it detects that the number of the minimum detection units in the detection area is less than a second preset value after starting the screen detection function. , wherein the second preset value is smaller than the first preset value.

In some feasible embodiments, the display device further includes:

A configuration module, the configuration module is used to obtain a preset detection configuration, and set a preset detection area according to the detection configuration.

In some feasible embodiments, the configuration module is further configured to set the start detection line number and the end detection line number to The display area between is set as the default detection area.

In some feasible embodiments, the configuration module is further configured to set the entire display area as a preset detection area if the detection configuration does not include the number of start detection lines and the number of end detection lines.

In some feasible embodiments, the configuration module is further configured to select at least one pixel point as the minimum detection unit.

In some feasible embodiments, the configuration module is further configured to set the gray scale corresponding to the sub-pixel of the pixel according to a preset index.

In some feasible embodiments, the execution module 200 is also configured to output the high and low level timing of the polarity inversion control signal to the driving circuit, so that the driving circuit changes the corresponding electrode pole according to the high and low level timing. sex.

The display device provided by this embodiment and the screen detection method provided by the above embodiments belong to the same inventive concept. For technical details not described in detail in this embodiment, please refer to any of the above embodiments, and this embodiment has the ability to perform screen detection. The same beneficial effect of the method.

In addition, an embodiment of the present application also provides a display panel. The above-mentioned image detection method applied to the display panel can be executed by a display device. The display device can be implemented in the form of software and/or hardware, and integrated into the display panel. middle.

Referring to FIG. 10 , FIG. 10 is a schematic diagram of a hardware structure of a display panel provided by an embodiment of the present application. As shown in FIG. 10 , the display panel may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM), or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the structure shown in FIG. 10 does not constitute a limitation on the display panel, and may include more or less components than shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 10 , the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module, and a computer program.

In the display panel shown in Figure 10, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; In the panel, the display panel calls the computer program stored in the memory 1005 through the processor 1001, and performs the following operations:

Detect the minimum detection unit line by line in the preset detection area;

If it is detected that the number of the minimum detection units in the detection area is greater than a first preset value, the screen detection function is activated;

After starting the picture detection function, if it is detected that the number of the minimum detection units in the detection area is less than a second preset value, then exit the picture detection function, wherein the second preset The set value is smaller than the first preset value.

Further, the processor 1001 can call the computer program stored in the memory 1005, and also perform the following operations:

Obtain a default detection configuration, and set a default detection area according to the detection configuration.

Further, the processor 1001 can call the computer program stored in the memory 1005, and also perform the following operations:

If the detection configuration includes a start detection line number and an end detection line number, the display area between the start detection line number and the end detection line number is set as a preset detection area.

Further, the processor 1001 can call the computer program stored in the memory 1005, and also perform the following operations:

If the detection configuration does not include the number of start detection lines and the number of end detection lines, the entire display area is set as the default detection area.

Further, the processor 1001 can call the computer program stored in the memory 1005, and also perform the following operations:

Select at least one pixel as the minimum detection unit.

Further, the processor 1001 can call the computer program stored in the memory 1005, and also perform the following operations:

The gray scale corresponding to the sub-pixel of the pixel is set according to a preset index.

Further, the processor 1001 can call the computer program stored in the memory 1005, and also perform the following operations:

Outputting the high-low level timing of the polarity inversion control signal to the driving circuit, so that the driving circuit changes the corresponding electrode polarity according to the high-low level timing.

The display panel proposed in this embodiment and the screen detection method applied to the display panel proposed in the above embodiments belong to the same inventive concept, and the technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has Same beneficial effect as performing the frame detection method.

In addition, the embodiment of the present application also proposes a computer-readable storage medium, which is applied to a computer. The computer-readable storage medium may be a non-volatile computer-readable storage medium, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by the processor, the screen detection method of any one of the above-mentioned embodiments is implemented.

Those skilled in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware and an appropriate combination thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit . Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

The above is a specific description of the preferred implementation of the embodiment of the present application, but the embodiment of the present application is not limited to the above-mentioned implementation, and those skilled in the art can make various modifications without violating the spirit of the embodiment of the present application. Equivalent modifications or replacements are all included within the scope defined by the claims in the embodiments of the present application.

Claims (10)

1. A picture detection method is characterized by comprising the following steps:

detecting the minimum detection unit line by line in a preset detection area;

if the number of the minimum detection units in the detection area is detected to be larger than a first preset value, starting an image detection function;

after the image detection function is started, if the number of the minimum detection units in the detection area is detected to be smaller than a second preset value, the image detection function is exited, wherein the second preset value is smaller than the first preset value.

2. The picture detection method as claimed in claim 1, wherein before said step of detecting minimum detection units row by row in a predetermined detection region, the picture detection method further comprises:

acquiring a preset detection configuration, and setting a preset detection area according to the detection configuration.

3. The frame detection method as claimed in claim 2, wherein the step of setting a predetermined detection region according to the detection configuration comprises:

and if the detection configuration comprises a starting detection line number and an ending detection line number, setting a display area between the starting detection line number and the ending detection line number as a preset detection area.

4. The frame detection method as claimed in claim 2, wherein the step of setting a predetermined detection region according to the detection configuration further comprises:

and if the detection configuration does not comprise the initial detection line number and the final detection line number, setting the whole display area as a preset detection area.

5. The picture detection method according to claim 1, wherein before the step of detecting the minimum detection units line by line in a predetermined detection region, the picture detection method further comprises:

at least one pixel point is selected as a minimum detection unit.

6. The frame detection method as claimed in claim 5, wherein after said step of selecting at least one pixel as a minimum detection unit, the frame detection method further comprises:

and setting the gray scale corresponding to the sub-pixel of the pixel point according to a preset index.

7. The method according to any one of claims 1 to 6, wherein the step of activating the frame detection function comprises:

and outputting the high-low level time sequence of the polarity inversion control signal to a driving circuit so that the driving circuit changes the corresponding electrode polarity according to the high-low level time sequence.

8. A display panel, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the picture detection method according to any one of claims 1 to 7.

9. A display device, characterized in that the display device comprises:

the detection module is used for detecting the minimum detection unit line by line in a preset detection area;

the execution module is used for starting a picture detection function if the number of the minimum detection units in the detection area is detected to be greater than a first preset value;

the execution module is further configured to, after the image detection function is started, if it is detected that the number of the minimum detection units in the detection area is smaller than a second preset value, quit the image detection function, where the second preset value is smaller than the first preset value.

10. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the picture detection method according to any one of claims 1 to 7.

Images