CN105242417B - Display module background color conformance test method - Google Patents
Display module background color conformance test method Download PDFInfo
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- CN105242417B CN105242417B CN201510694681.0A CN201510694681A CN105242417B CN 105242417 B CN105242417 B CN 105242417B CN 201510694681 A CN201510694681 A CN 201510694681A CN 105242417 B CN105242417 B CN 105242417B
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- 238000010998 test method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 56
- 230000000007 visual effect Effects 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 4
- 101100290417 Zea mays ROA1 gene Proteins 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The present invention discloses a kind of display module background color conformance test method, including：Step 1：Display module is fixed on monitor station and overlaps its central point with test point；Step 2：Light source is placed on the first transmitting position, the chromaticity coordinates for learning the light that tester test receives and brightness are used up in the first reception position and compared with standard figures；Step 3：Light source is placed on the second transmitting position, the chromaticity coordinates for learning the light that tester test receives and brightness are used up in the second reception position and compared with standard figures；Step 4：Display module is overturn into 180 ° and repeat step 2 to 3；Step 5：Display module is turned right 90 ° and repeat steps 2 to 3；Step 6：Display module is turned left 180 ° and repeat steps 2 to 3.This method can not only make tester be easier to estimate out difference, while can carry out whether rational judgment display module background color uniformity meets the requirements.
Description
Technical field
The present invention relates to display module to produce detection field, and in particular, to a kind of display module background color uniformity test
Method.
Background technology
There should be identical background color in liquid crystal display between different display modules, otherwise can cause in use
There is deviation in color displays, and human eye viewing time shortly occurs that eyes are dry and astringent, the symptom such as tired, influences people's in the course of time
Eyesight, therefore display module is needed to carry out the test of background color uniformity.
The shortcomings that test mode of existing background color uniformity is to estimate, this test method has at 2 points：First, subjective factor
Test result is influenced, different people sees identical product, and visual sense feeling often differs greatly；2nd, display module manufacturer produces
The product of different batches is difficult to be compared, for example the product of first batch has been delivered to customer, and subsequent batches just can not be with
One batch compares.
Therefore, being badly in need of providing one kind can not only make to test out difference originally and be more prone to, while can be quantified
Judge the test method whether display module background color uniformity meets the requirements.
The content of the invention
The object of the present invention is to provide a kind of display module background color conformance test method, this method can not only make tester
Difference is easily estimated out, while can carry out whether rational judgment display module background color uniformity meets the requirements.
To achieve these goals, the present invention provides a kind of display module background color conformance test method, including：
Step (1)：Display module to be tested is fixed on monitor station and by the central point of display module and test point weight
Close；
Step (2)：Light source is powered and is placed on the first transmitting position, is then used up in the first reception position and learns tester test
The chromaticity coordinates of the light by test point reflection received and brightness, record test number are carried out at the same time visual observation, and will be
The chromaticity coordinates and brightness value that first reception position measures are compared with standard figures；
Step (3)：Light source is powered and is placed on the second transmitting position, is then used up in the second reception position and learns tester test
The chromaticity coordinates of the light by test point reflection received and brightness, record test number are carried out at the same time visual observation, and will be
The chromaticity coordinates and brightness value that second reception position measures are compared with standard figures；
Step (4)：Display module to be tested is overturn 180 ° and overlaps the central point of display module with test point, is repeated
Step (2) is to step (3)；
Step (5)：Display module to be tested is turned right and 90 ° and is overlapped the central point of display module with test point,
Repeat step (2) is to step (3)；
Step (6)：Display module to be tested is turned left and 180 ° and is overlapped the central point of display module with test point,
Repeat step (2) is to step (3).
Preferably, power after fixed display module to be tested is additionally included in step (1) to display module to be tested and to
Input black burst in display module to be tested.
Preferably, in step (2) using the brightness further included before light source irradiation using optical tester testing light source with
Chromaticity coordinates.
Preferably, light source is energy-saving lamp, and the power of energy-saving lamp is 35-45W.
Preferably, distance is 50-70cm between the first transmitting position and test point.
According to above-mentioned technical proposal, the present invention is shone on display module by optical tester in multiple station acquisition light sources
Then the chromaticity coordinates of the light after reflection, diffusion etc. and brightness, are sat by comparing disparate modules in the color of same test point
Whether the performance that mark and luminance difference carry out background color uniformity between judgment module meets the requirements；Simultaneously because have the presence of light source,
Visually observed in same test point, under the conditions of existing for no light source compared with, the background color difference between module will be more
Add substantially, it is more very clear.Therefore using the test method tester can not only be made to be easier to estimate out difference, while can
Carry out whether rational judgment display module background color uniformity meets the requirements.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of signal of embodiment of the display module background color conformance test method provided according to the present invention
Figure.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The present invention provides a kind of display module background color conformance test method, including：
Step (1)：Display module to be tested is fixed on monitor station and by the central point of display module and test point weight
Close；
Step (2)：Light source is powered and is placed on the first transmitting position, is then used up in the first reception position and learns tester test
The chromaticity coordinates of the light by test point reflection received and brightness, record test number are carried out at the same time visual observation, and will be
The chromaticity coordinates and brightness value that first reception position measures are compared with standard figures；
Step (3)：Light source is powered and is placed on the second transmitting position, is then used up in the second reception position and learns tester test
The chromaticity coordinates of the light by test point reflection received and brightness, record test number are carried out at the same time visual observation, and will be
The chromaticity coordinates and brightness value that second reception position measures are compared with standard figures；
Step (4)：Display module to be tested is overturn 180 ° and overlaps the central point of display module with test point, is repeated
Step (2) is to step (3)；
Step (5)：Display module to be tested is turned right and 90 ° and is overlapped the central point of display module with test point,
Repeat step (2) is to step (3)；
Step (6)：Display module to be tested is turned left and 180 ° and is overlapped the central point of display module with test point,
Repeat step (2) is to step (3).
Through the above technical solutions, shone using optical tester (such as spectroradio luminance meter) in multiple station acquisition light sources
The chromaticity coordinates of light on to display module and then after reflection, diffusion etc. and brightness, by comparing disparate modules same
Whether the performance that the chromaticity coordinates and luminance difference of test point carry out background color uniformity between judgment module meets the requirements；Simultaneously because have
The presence of light source, is visually observed in same test point, under the conditions of existing for no light source compared with, the background color between module
Difference will be more obvious, more very clear.Therefore using the test method tester can not only be made to be easier range estimation to go on business
It is different, while can carry out whether rational judgment display module background color uniformity meets the requirements.
In the present embodiment, in order to enable simulant display model can make as much as possible when being tested using this method
Background color uniformity during with state and improve the color contrast of test, it is preferable that it is to be measured that fixation is additionally included in step (1)
Power after examination display module to display module to be tested and input black burst into display module to be tested.
In order to control the brightness of light source and chromaticity coordinates can be suitable for different display modules background color uniformity test and
Judge that its brightness whether in tolerance, disclosure satisfy that the needs of test, shone in preferred steps (2) using light source with chromaticity coordinates
Brightness and the chromaticity coordinates using optical tester testing light source are further included before penetrating.
Above-mentioned light source can be any type illuminating source common in this area, but from saving testing cost and resource
And from the point of view of being conveniently replaceable, it is preferable that the light source is energy-saving lamp, and the power of the energy-saving lamp is 35-45W.
In addition, in order to reach preferable display module visual effect, in order to obtain more accurately measurement result, preferably
Distance is 50-70cm between one transmitting position and test point.
Illustrate above-mentioned display module background color conformance test method below by a specific embodiment：
As shown in Figure 1, screen center when O points are fixed on monitor station for display module, A, B, C, D point are respectively the
One transmitting position, the second transmitting position, the 3rd transmitting position and the 4th transmitting position, A1, B1, C1, D1 point are respectively first to connect
Position, the second reception position, the 3rd reception position and the 4th reception position are received, the line between R points and O points is perpendicular to display mould
Plane where block；Wherein, the distance of OA, OB, OC, OD, OR, OA1, OB1, OC1, OD1 are 60cm, ∠ ROA, ∠ AOB, ∠
BOC, ∠ COD, ∠ ROA1, ∠ A1OB1, ∠ B1OC1, ∠ C1OD1 are 15 °, and (general display module visual requirement is in 60 ° of scopes
It is interior, thus the present embodiment by 15 ° be interval, illustrated exemplified by 60 ° of visual angles, this test method can be according to the specific of display module
Visual angle adjustment ∠ ROA, ∠ AOB, ∠ BOC, ∠ COD, ∠ ROA1, ∠ A1OB1, ∠ B1OC1, the number of degrees of ∠ C1OD1, such as visual angle
It is required that 70 °, then each above-mentioned adjustable angle is 17.5 °)；One 40W energy-saving lamp of light source selected as.In this way, according to above-mentioned aobvious
Show that module background color conformance test method takes following steps：
The 1st, display module is just being placed on to O points position as shown in Figure 1, the display screen center of display module is overlapped with O points；
2nd, chosen whether to module for power supply according to the specific requirement of test, if giving module for power supply, need to be inputted to module black
Field signal；
3rd, specific light source is verified with optical tester：Whether the brightness of one 40W energy-saving lamp is with chromaticity coordinates in tolerance
It is interior, if in the range of, can use；
4th, qualified energy-saving lamp energization will be verified and be placed on A points position as shown in Figure 1, then in A1 points position as shown in Figure 1
Chromaticity coordinates and brightness are tested with optical tester；And record test number and be carried out at the same time visual observation, and record observation result；
5th, qualified energy-saving lamp energization will be verified and be placed on B points position as shown in Figure 1, then in B1 points position as shown in Figure 1
Chromaticity coordinates and brightness are tested with optical tester；And record test number and be carried out at the same time visual observation, and record observation result；
6th, qualified energy-saving lamp energization will be verified and be placed on C points position as shown in Figure 1, then in C1 points position as shown in Figure 1
Chromaticity coordinates and brightness are tested with optical tester；And record test number and be carried out at the same time visual observation, and record observation result；
7th, qualified energy-saving lamp energization will be verified and be placed on D points position as shown in Figure 1, then in D1 points position as shown in Figure 1
Chromaticity coordinates and brightness are tested with optical tester；And record test number and be carried out at the same time visual observation, and record observation result；
8th, display module upset is put upside down, and the display screen center of display module is overlapped with O points, repeat step 4-7；
9th, display module right margin is placed on bottom, and the display screen center of display module is overlapped with O points, repeat to walk
Rapid 4-7；
10th, display module left margin is placed on bottom, and the display screen center of display module is overlapped with O points, repeated
Step 4-7；
11st, different display modules are qualified in A1, B1, C1, D1 point visual observations, and are sat with optical tester test color
Mark and brightness value then judge that display module background color uniformity is qualified in tolerance, on the contrary then uniformity is unqualified.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (5)
- A kind of 1. display module background color conformance test method, it is characterised in that including：Step (1)：Display module to be tested is fixed on monitor station and by the central point of the display module and test point weight Close；Step (2)：Light source is powered and is placed on the first transmitting position, is then used up in the first reception position and learns tester test reception The chromaticity coordinates of the light by test point reflection arrived and brightness, record test number are carried out at the same time visual observation, and will be first The chromaticity coordinates and brightness value that reception position measures are compared with standard figures；Step (3)：Light source is powered and is placed on the second transmitting position, is then used up in the second reception position and learns tester test reception The chromaticity coordinates of the light by test point reflection arrived and brightness, record test number are carried out at the same time visual observation, and will be second The chromaticity coordinates and brightness value that reception position measures are compared with standard figures；Step (4)：Display module to be tested is overturn 180 ° and overlaps the central point of the display module with test point, is repeated Step (2) is to step (3)；Step (5)：Display module to be tested is turned right and 90 ° and is overlapped the central point of the display module with test point, Repeat step (2) is to step (3)；Step (6)：Display module to be tested is turned left and 180 ° and is overlapped the central point of the display module with test point, Repeat step (2) is to step (3).
- 2. display module background color conformance test method according to claim 1, it is characterised in that in the step (1) It is additionally included in after fixed display module to be tested to display module to be tested power supply and black field is inputted into display module to be tested Signal.
- 3. display module background color conformance test method according to claim 1, it is characterised in that in the step (2) Brightness and the chromaticity coordinates that the light source is tested using optical tester using being further included before light source irradiation.
- 4. display module background color conformance test method according to claim 3, it is characterised in that the light source is energy saving Lamp, and the power of the energy-saving lamp is 35-45W.
- 5. display module background color conformance test method according to claim 1, it is characterised in that the first transmitting position It is 50-70cm to put the distance between the test point.
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| CN106292014B (en) * | 2016-11-04 | 2019-12-06 | 威胜集团有限公司 | Method for testing liquid crystal display screen bottom color difference |
| CN111982477B (en) * | 2020-08-31 | 2023-04-28 | 合肥维信诺科技有限公司 | Display panel testing method and device |
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| JP3275103B2 (en) * | 1991-06-28 | 2002-04-15 | フォトン・ダイナミクス・インコーポレーテッド | Inspection method for active matrix liquid crystal display substrate |
| CN101277370A (en) * | 2007-03-26 | 2008-10-01 | 村田机械株式会社 | Image processing apparatus and method for detecting a background color |
| CN203551900U (en) * | 2013-10-10 | 2014-04-16 | 中国航空工业集团公司上海航空测控技术研究所 | Visible angle testing device of liquid crystal display (LCD) |
| CN103792066A (en) * | 2012-11-01 | 2014-05-14 | 南京灿华光电设备有限公司 | An optical detection method for vehicles |
| CN104536172A (en) * | 2015-01-22 | 2015-04-22 | 合肥京东方光电科技有限公司 | Detection device and detection method |
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2015
- 2015-10-23 CN CN201510694681.0A patent/CN105242417B/en active Active
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|---|---|---|---|---|
| JP3275103B2 (en) * | 1991-06-28 | 2002-04-15 | フォトン・ダイナミクス・インコーポレーテッド | Inspection method for active matrix liquid crystal display substrate |
| JPH10300447A (en) * | 1997-04-23 | 1998-11-13 | K L Ee Akurotetsuku:Kk | Method and device for detecting unevenness of surface pattern |
| CN101277370A (en) * | 2007-03-26 | 2008-10-01 | 村田机械株式会社 | Image processing apparatus and method for detecting a background color |
| CN103792066A (en) * | 2012-11-01 | 2014-05-14 | 南京灿华光电设备有限公司 | An optical detection method for vehicles |
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| CN104536172A (en) * | 2015-01-22 | 2015-04-22 | 合肥京东方光电科技有限公司 | Detection device and detection method |
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