CN219832160U - Reference template for detecting pixel point failure of display screen - Google Patents
Reference template for detecting pixel point failure of display screen Download PDFInfo
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- CN219832160U CN219832160U CN202320720757.2U CN202320720757U CN219832160U CN 219832160 U CN219832160 U CN 219832160U CN 202320720757 U CN202320720757 U CN 202320720757U CN 219832160 U CN219832160 U CN 219832160U
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- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 30
- 230000007547 defect Effects 0.000 claims description 33
- 239000003086 colorant Substances 0.000 claims description 12
- 230000002950 deficient Effects 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
Abstract
The utility model discloses a reference template for detecting pixel point failure of a display screen, which is characterized by comprising the following components: the display screen and with the detection tool that display screen is connected, be provided with the detection area that is used for detecting display screen on the display screen, R, G, B three sub-pixel has been arranged to pixel in the detection area, be provided with in the detection area and be used for right the reference point that the display screen dotted line is bad carries out reference contrast, be provided with the test picture in the detection tool, the test picture passes to display in the detection area, the reference point is located in the test picture, still be provided with in the detection area and be used for showing the observation area of the defective pixel point of display screen dotted line. The reference template for detecting the pixel point failure of the display screen has the characteristics of high efficiency and simple contrast.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to a reference template for detecting pixel point failure of a display screen.
Background
Before the display screen is manufactured and shipped, quality detection is performed by quality inspection personnel, and shipment can be performed only after the quality inspection personnel meet the customer standards. The defects of the display screen are mainly defects of dotted lines of the display screen, wherein the defects comprise bright points, dark points, different color points, colored points and the like.
Quality inspectors in the prior art can judge whether the adverse conditions of the display screen are beyond the specification only by comparing the film according to the dot line specification. The defect condition of the display screen can be displayed through the detection module, and quality inspection personnel can compare the defect condition of the display screen with the detection module through the dotted line specification film to judge whether the defect condition of the display screen exceeds the specification.
However, after the defect of the display screen is displayed by the detection module, the defect is different from the dot line film, so that the defect is not suitable for being directly judged, and misjudgment is easy to occur.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a reference template for detecting pixel point defects of a display screen, which is convenient to detect and has high efficiency.
The aim of the utility model is realized by the following technical scheme:
a display screen pixel defect detection reference template, comprising: the display screen and with the detection tool that display screen is connected, be provided with the detection area that is used for detecting display screen on the display screen, R, G, B three sub-pixel has been arranged to pixel in the detection area, be provided with in the detection area and be used for right the reference point that the display screen dotted line is bad carries out reference contrast, be provided with the test picture in the detection tool, the test picture passes to display in the detection area, the reference point is located in the test picture, still be provided with in the detection area and be used for showing the observation area of the defective pixel point of display screen dotted line.
In one embodiment, the display screen is composed of a plurality of pixel points, the pixel points are composed of R, G, B three sub-pixel points, reference templates for enabling the display screen to display different colors through R, G, B sub-pixels are arranged in the detection area, and the reference templates comprise a single-color reference template, a different-color reference template and a black-and-white point reference template.
In one embodiment, the monochrome reference template is any one of sub-pixel points in the open R, G, B, so that the display screen displays any one of red, green and blue.
In one embodiment, the different-color reference template is any two sub-pixel points in the opening R, G, B, so that the display screen displays any one color of purple, yellow and cyan.
In one embodiment, the black and white point reference template is turned off or on R, G, B for all sub-pixels, so that the display screen displays black or white.
In one embodiment, the R, G, B three sub-pixel points are respectively provided with 256 gray scales for making the display screen display color brightness.
In one embodiment, the number of the reference points in the test frame may be set to 1-4.
In one embodiment, an observation point is set in the observation area, and the observation point is a position showing that the dot line of the display screen is bad according to the reference point.
In one embodiment, the detection fixture comprises a power interface for connecting with a power supply, a driving board for storing the test picture and displaying the test picture on the display screen, and a transfer FPC port, wherein the transfer FPC port is connected with the display screen.
In one embodiment, a selection key area is arranged on one side of the driving plate, and a detection key, a reset key, an up-page-turning key and a down-page-turning key are arranged in the selection key area.
Compared with the prior art, the utility model has at least the following advantages:
according to the reference template for detecting the pixel point failure of the display screen, the detection jig is arranged, when the keys on the detection jig are controlled to enable the display screen to display different test pictures, the display screen sequentially lights the positions of the display screen with the point failure according to the sub-pixel points of the reference points in the test pictures to the observation area, and points with different sizes can be obtained in the observation area to serve as references. By checking the difference between the colors of the observation point and the reference point and the sizes of the pixel points, the degree of the defect of the dot line of the display screen can be intuitively judged, and whether the defect of the display screen exceeds the specification is judged.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described.
FIG. 1 is a schematic diagram of a reference template for detecting pixel defects of a display screen according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a reference template for detecting pixel defect of a display screen according to an embodiment of the utility model.
Description of the drawings: 10. a display screen; 11. a detection region; 12. a reference template; 13. a reference point; 14. testing a picture; 15. an observation area; 151. an observation point; 20. detecting a jig; 21. a power interface; 22. a driving plate; 23. switching the FPC port; 24. selecting a key area; 241. detecting a key; 242. resetting a key; 243. a page turning button; 244. the page turning button is turned down.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.
Referring to fig. 1, a reference sample plate for detecting pixel defect of a display screen includes a display screen 10 and a detection jig 20 connected to the display screen 10. The display screen 10 is provided with a detection area 11. The pixel arrangement in the detection area 11 is R, G, B sub-pixels from left to right, and R, G, B sub-pixel points are combined into one pixel point. Wherein R, G, B represents three colors of red, green and blue, respectively. In this embodiment, the display screen 10 is referred to as an LCD, and the display screen 10 is composed of a plurality of pixels, wherein the pixels are composed of R, G, B three colors, and different colors can be displayed in the display screen 10 by controlling the brightness of R, G, B three colors. In the display screen 10, the length of each of the R, G, B single sub-pixels is three times the width, and when R, G, B three sub-pixels are combined into one pixel, the length and the width are equal.
Referring to fig. 1, a reference pattern 12 is disposed in the detection area 11, so that the display screen 10 can conveniently display different colors to intuitively determine the defect of the occurred dotted line, wherein the reference pattern 12 includes a single-color reference pattern, a different-color reference pattern and a black-and-white reference pattern. The monochrome reference plate is simply one color displayed on the display screen 10. By controlling RGB, any one of the sub-pixel points in R, G, B is turned on, and the display screen 10 displays any one of pure red, green and blue.
Referring to fig. 1, the different color reference template is displayed in the display screen 10 in a color other than the three colors R, G, B. By controlling RGB, any two sub-pixel points in R, G, B are turned on, and the display screen 10 displays any one color of violet, yellow and cyan. Wherein, purple is to open two sub-pixel points of R and B; yellow is to turn on two sub-pixel points R and G; cyan is to turn on the two sub-pixel points G and B.
Referring to fig. 1, a black-and-white point reference template is displayed in black or white on the display screen 10, and by controlling RGB, when all three sub-pixel points R, G, B are turned off, the display screen 10 displays black; when all three sub-pixels of RGB are on, the display screen 10 displays white.
Referring to fig. 1, among three colors of RGB, 256 gradations, i.e., 0 to 255, are provided for each color, and the 256 gradations are expressed by binary. By changing the gray scale of the different sub-pixels of RGB, the color displayed on the display screen 10 can be changed in a gradient from 0 to 255, and the difference from light to dark can be presented.
Referring to fig. 1, in the display screen 10, a reference point 13 for reference contrast of a position of a dotted line defect of the display screen 10 is provided, in the inspection jig 20, a plurality of test frames 14 are provided, different test frames 14 can be displayed in the inspection area 11 of the display screen 10 by the inspection jig 20, the test frames 14 include pure color frames or color frames, i.e., pictures, and the reference point 13 is provided in the test frames 14. In this embodiment, the number of the reference points 13 may be 1-4 according to the detection requirement, and the positions of the reference points 13 of different test frames 14 may be located at the same position or may be located at different positions. The reference points 13 may be set to be monochromatic, heterochromatic and white points, and different numbers of pixels or sub-pixels may be set to be turned on, and the gray scale of the pixels may be set to achieve the desired brightness. The reference point 13 is written into the detection jig 20 by software.
Referring to fig. 1, an observation region 15 for displaying pixel points with defective dotted lines is provided in the detection region 11, and the observation region 15 is positioned above and to the left of the detection region 11. An observation point 151 is provided in the observation area 15, and the observation point 151 is used for displaying a position of the display screen 10 where the dot line is bad according to the reference point 13. When the display screen 10 displays different test pictures 14, the display screen 10 sequentially lights up positions of defective dotted lines into the observation area 15 according to sub-pixel points of the reference points 13 in the test pictures 14, and points with different sizes can be obtained in the observation area 15 and can be used as reference for detecting pixel point sizes. By looking at the difference between the color and the size of the pixel point of the observation area 15 and the reference point 13, the degree of the dot line defect of the display screen 10 can be intuitively judged, and thus whether the defect condition of the display screen 10 exceeds the specification can be judged.
Referring to fig. 2, the detection jig 20 is rectangular, a power interface 21 for connecting with a power source is provided on one side of the detection jig 20, and a driving board 22 for driving the display screen 10 to display different test pictures 14 is provided in the detection jig 20. One side of the detection jig 20 is provided with a transfer FPC port 23 for connecting the display screen 10, and different test pictures 14 are displayed on the display screen 10 through the transfer FPC port 23 so as to judge the defect condition of the display screen 10.
Referring to fig. 2, a selection key area 24 is disposed on one side of the driving board 22, the selection key area 24 includes a detection key 241, a reset key 242, an up-page-turning key 243, and a down-page-turning key 244, and the detection area 11 of the display screen 10 displays the test screen 14 by controlling the detection key 241 to detect the display screen 10. The control reset button 242 can restore the detection tool 20 to the initial state. The up-page button 243 and the down-page button 244 are used to switch different test screens 14. The test screen 14 is displayed on the display screen 10 by pressing the corresponding key, and then the positions of the dotted lines of the display screen 10 with poor quality are sequentially displayed in the observation area 15, and compared with the reference point 13 in the test screen 14 to judge whether the poor quality of the display screen 10 meets the specification.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A display screen pixel defect detection reference template, comprising: display screen (10) and with detection tool (20) that display screen (10) are connected, be provided with on display screen (10) and be used for carrying out detection region (11) to display screen (10), the pixel has arranged R, G, B three subpixel in detection region (11), be provided with in detection region (11) and be used for right reference contrast is carried out in the position that display screen (10) dotted line is bad, be provided with test picture (14) in detection tool (20), test picture (14) are passed to detection region (11) internal display, reference point (13) are located test picture (14), still be provided with in detection region (11) and be used for showing observation region (15) of the pixel point that display screen (10) dotted line is bad.
2. A display screen pixel defect detection reference pattern according to claim 1, wherein the display screen (10) is composed of a plurality of pixels, the pixels are composed of R, G, B three sub-pixels, the detection area (11) is provided with reference patterns (12) for displaying different colors on the display screen (10) through R, G, B sub-pixels, and the reference patterns (12) include a monochrome reference pattern, a heterochromatic reference pattern and a black-and-white reference pattern.
3. A display screen pixel defect detection reference template according to claim 2, wherein the monochrome reference template is any one of sub-pixels in the open R, G, B, so that the display screen (10) displays any one of red, green and blue colors.
4. A display screen pixel defect detection reference pattern according to claim 2, wherein the different color reference pattern is any two sub-pixels in the open R, G, B, such that the display screen (10) displays any one of the colors purple, yellow and cyan.
5. A display screen pixel defect detection reference pattern according to claim 2, wherein the black and white point reference pattern is turned off or on R, G, B all sub-pixels such that the display screen (10) displays black or white.
6. A display screen pixel defect detection reference pattern according to claim 1, wherein said R, G, B sub-pixels are respectively provided with 256 gradations for making said display screen (10) display color shading.
7. A display screen pixel defect detection reference template according to claim 1, characterized in that the number of reference points (13) in the test picture (14) can be set to 1-4.
8. A display screen pixel defect detection reference template according to claim 1, wherein an observation point (151) is arranged in the observation area (15), and the observation point (151) is a position for displaying a dot defect of the display screen (10) according to the reference point (13).
9. The display screen pixel defect detection reference template according to claim 1, wherein the detection jig (20) comprises a power interface (21) for connecting with a power supply, a driving board (22) for storing the test picture (14) and displaying on the display screen (10), and a port of a transfer FPC (23), and the port of the transfer FPC (23) is connected with the display screen (10).
10. The reference template for detecting pixel defect of display screen according to claim 9, wherein a selection key area (24) is disposed on one side of the driving board (22), and a detection key (241), a reset key (242), an up page-turning key (243) and a down page-turning key (244) are disposed in the selection key area (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320720757.2U CN219832160U (en) | 2023-04-03 | 2023-04-03 | Reference template for detecting pixel point failure of display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320720757.2U CN219832160U (en) | 2023-04-03 | 2023-04-03 | Reference template for detecting pixel point failure of display screen |
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| Publication Number | Publication Date |
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| CN219832160U true CN219832160U (en) | 2023-10-13 |
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| CN202320720757.2U Active CN219832160U (en) | 2023-04-03 | 2023-04-03 | Reference template for detecting pixel point failure of display screen |
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| Country | Link |
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| CN (1) | CN219832160U (en) |
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- 2023-04-03 CN CN202320720757.2U patent/CN219832160U/en active Active
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