CN117058993A - Display screen bright spot detection method and system based on electronic limit sample - Google Patents
Display screen bright spot detection method and system based on electronic limit sample Download PDFInfo
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- CN117058993A CN117058993A CN202310857870.XA CN202310857870A CN117058993A CN 117058993 A CN117058993 A CN 117058993A CN 202310857870 A CN202310857870 A CN 202310857870A CN 117058993 A CN117058993 A CN 117058993A
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- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000007547 defect Effects 0.000 claims description 30
- 230000002950 deficient Effects 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 208000003464 asthenopia Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 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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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The application relates to a display screen bright spot detection method and a system based on an electronic limit sample. The traditional bright spot limit sample is selected from actual bright spot products, the process of selecting the limit sample is complicated, the bright spot size of the limit sample selected in different time periods of different projects is not necessarily the same, and the brightness of the limit sample can be changed after being placed for a plurality of months. The electronic limit sample is written by software, the bright spot standard can be adjusted by the software, the method is convenient and quick, and the brightness standard after the setting is fixed, stable and reliable.
Description
Technical Field
The application relates to the technical field of display screens, in particular to a display screen bright spot detection method and system based on an electronic limit sample.
Background
In the display screen industry, there is a bright point card control, that is, there is a small bright point defect in the display screen produced and manufactured, and in the industry, a specific bright point is generally confirmed together with a customer, and then a certain bright point sample is signed as a limit sample. Samples in the subsequent production process are judged to be NG if the bright spot is larger than the limit sample, and samples smaller than the limit sample are judged to be OK. Above, bright spot limit appearance is selected from actual bright spot product, and not only select the flow of limit appearance loaded down with trivial details, the bright spot size of limit appearance that different project different time periods selected is not necessarily the same yet, and limit appearance's luminance also probably appears changing after placing several months moreover.
Disclosure of Invention
The application provides a display screen bright spot detection method and system based on an electronic limit sample, and aims to partially solve the problems existing in the prior art.
Specifically, the application provides the following technical scheme:
in a first aspect, a method for detecting a bright spot on a display screen based on an electronic limit sample is provided, including:
the display module writes a full black picture, and then at least four pixel points are opened in the full black picture, wherein the four pixel points are a first pixel point, a second pixel point, a third pixel point and a fourth pixel point respectively; the first pixel point is a white pixel point and presents white; the second pixel point is a red pixel point and presents red; the third pixel point is a blue pixel point and is blue; the fourth pixel point is a green pixel point and is green; the electronic limit sample for detecting the bright spots of the display screen is characterized in that four pixel points are used as standard points for simulating the bright spots of the defect display screen and used as a judging standard;
the display screen to be detected is lightened, bright spots of the display screen to be detected are precisely compared with standard spots, if the bright spots of the display screen to be detected are larger than or brighter than the standard spots, the display screen is judged to be an unqualified product, and a popup window of the display screen displays NG;
the display screen to be detected is lightened, bright spots of the display screen to be detected are finely compared with standard spots, if the bright spots of the display screen to be detected are smaller or darker than the standard spots, the display screen is judged to be qualified, and a popup window of the display screen displays OK;
the size value and the brightness of the standard point can be adjusted by adjusting the gray level of the pixel point.
As a preferable technical scheme, at least four pixel points are positioned at four corners of the full black picture.
As an preferable technical scheme, the first pixel point and the second pixel point, and the third pixel point and the fourth pixel point are respectively located on diagonal positions of the full black picture.
As a preferable technical scheme, the four pixel points are four square points.
As the preferable technical scheme, the bright spot of the display screen to be detected is finely compared with the standard spot, and when the display screen to be detected is judged to be an unqualified product, the display screen is flicked on the display screen to be detected to display the defect information of the display screen, wherein the defect information comprises the brightness value of the bright spot and the size value information of the bright spot.
As the preferable technical scheme, the defect information also comprises information that the brightness value of the bright spot of the display screen is larger than the standard spot brightness value and information that the size value of the bright spot of the display screen is larger than the standard spot size value.
In a second aspect, a display screen bright point detection system based on an electronic limit sample is provided, including:
the display module can light a full black picture, at least 4 pixel points can be lightened on the full black picture, and the gray level of the pixel points is adjustable; the four pixel points are white pixel points and represent white; red pixel points, which represent red; blue pixel points, which represent blue; a green pixel point, which presents green; at least 4 pixel points are used as standard points for simulating bright points of a defect display screen and are used as judging standards;
the camera module can set the standard value of four pixel points, the standard value is characterized by gray values, and the size value and the brightness of the standard point are regulated and controlled by adjusting the gray values; the brightness and the size value of the bright spot of the display screen can be obtained;
and the judging module can compare the brightness and the size value of the standard point and the bright point of the defect display screen and output a judging result. If the bright point of the display screen to be detected is larger than or brighter than the standard point, judging that the display screen is a defective product, and displaying NG by a popup window of the display screen; if the bright point of the display screen to be detected is smaller or darker than the standard point, judging that the display screen is qualified, and displaying OK through a popup window of the display screen.
As a preferable technical scheme, the judging module can pop a window on a display screen to be tested to display defect information of the display screen, wherein the defect information comprises brightness values of bright spots and bright spot size value information; and information that the brightness value of the bright spot of the display screen is larger than the standard spot brightness value, and information that the size value of the bright spot of the display screen is larger than the standard spot size value.
As an optimal technical scheme, the position of the bright spot of the display screen is indicated by a circle, a frame or an arrow with color, and the defect information is displayed beside the circle, the frame or the arrow.
In a third aspect, a terminal is provided, including a processor and a memory, where a computer program is stored, where the computer program is called and executed by the processor to implement the above detection method.
Compared with the prior art, the application has the following technical effects: the application writes the bright spot limit sample of the display screen through software to prepare the electronic limit sample, and the bright spot standard of the electronic limit sample can be adjusted through software, thereby being convenient and quick. And the electronic limit sample after the determination is stable and reliable, and the limit sample cannot be changed due to time change. Furthermore, when a defective product is detected, the defective part is marked and displayed in the form of a circle, a square frame and the like, so that the staff at the position can conveniently read information, and the condition of missed detection or false detection caused by eye fatigue is avoided.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Description of the drawings:
fig. 1 is a schematic diagram of a method for detecting bright spots on a display screen based on an electronic limit sample according to embodiment 1 of the present application;
FIG. 2 is a schematic diagram of an electronic limit sample according to embodiment 1 of the present application;
fig. 3 is a schematic structural diagram of a display screen bright spot detection system based on an electronic limit sample according to embodiment 2 of the present application;
FIG. 4 is a schematic diagram of detecting bright spots on a display screen according to embodiment 2 of the present application;
reference numerals illustrate:
an electron limitation sample 1; white pixel points 11; red pixel dots 12; blue pixel dots 13; a green pixel 14;
a display module 2; a camera module 3; a judgment module 4; a display screen 5; a bright spot 51; a defect information display area 52.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. In the description of the present application, it should be noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
It should be understood that the various steps recited in the method embodiments of the present application may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the application is not limited in this respect.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise. "plurality" is understood to mean two or more.
Example 1
As shown in fig. 1, a method for detecting a bright spot 51 on a display screen 5 based on an electronic limit sample 1 according to this embodiment is provided, and includes:
and S01, in a common display screen 5 electric measurement post, the display module 2 writes a full black picture in a form of a computer program, and then at least four pixel points are opened in the full black picture. As described above, the electronic limit sample 1 was formed by software, and the electronic limit sample 1 was used as a criterion for determining the bright spots 51 on the display panel 5.
The four pixel points are respectively arranged as a first pixel point, a second pixel point, a third pixel point and a fourth pixel point; the first pixel point is a white pixel point 11, which presents white, and when one of the three sub-pixel points of red, green and blue is opened, the first pixel point presents white; the second pixel point is a red pixel point 12, which is red, and only one red sub-pixel point is opened, so that the red color is displayed; the third pixel point is a blue pixel point 13, which presents blue color, and only one blue sub-pixel point is opened to present blue color; the fourth pixel point is a green pixel point 14, which is green, and only one green sub-pixel point is turned on to be green; the four pixel points serve as standard points, simulating the bright spots 51 of the defective display screen 5, serving as a determination criterion.
Preferably, as shown in fig. 2, at least four pixel points are located at four corners of the full black screen. Further, the first pixel point and the second pixel point, and the third pixel point and the fourth pixel point are respectively located on the diagonal positions of the full black picture. Four pixel points are displayed on the full black picture in four square points.
S02, lighting the display screen 5 to be tested, precisely comparing the bright spots 51 of the display screen 5 to be tested with the standard spots, and if the bright spots 51 of the display screen 5 to be tested are larger or brighter than the standard spots, judging that the display screen 5 is a defective product, and displaying 'NG' through popup windows.
S03, lighting the display screen 5 to be tested, precisely comparing the bright spots 51 of the display screen 5 to be tested with the standard spots, and judging that the display screen 5 is qualified if the bright spots 51 of the display screen 5 to be tested are smaller or darker than the standard spots, and displaying 'OK' through popup windows of the display screen 5.
The size value and the brightness of the standard point can be adjusted by adjusting the gray level of the pixel point.
For example, the red pixel 12 is 255 gray scale when the red pixel is fully turned on, and if the red pixel 12 as a determination criterion needs to be set small or dark, it can be adjusted to 128 gray scale of the red pixel 12.
The detection method provided by the embodiment can display the standard point along with the test sample, and is convenient to compare.
Preferably, the bright spot 51 of the display screen 5 to be tested is precisely compared with the standard spot, and when the defective product is determined, the defect information of the display screen 5 is displayed on a popup window on the display screen 5 to be tested, wherein the defect information comprises the brightness value of the bright spot 51 and the size value information of the bright spot 51. Further, the defect information further includes information that the brightness value of the bright spot 51 of the display 5 is larger than the standard spot brightness value, and information that the size value of the bright spot 51 of the display 5 is larger than the standard spot size value. And reminding defect information, so that technicians are helped to optimize the process, and the number of defective products in the later period is reduced.
The traditional bright spot 51 limit sample is selected from actual bright spot 51 products, the process of selecting the limit sample is complicated, the bright spot 51 size of the limit sample selected in different time periods of different projects is not necessarily the same, and the brightness of the limit sample can be changed after being placed for a plurality of months.
In the embodiment of the present market, the electronic limit sample 1 is written by software, and the standard of the bright spot 51 can be adjusted by the software, so that the method is convenient and quick. And the brightness standard after the setting is fixed, stable and reliable.
Example 2
As shown in fig. 3, a system for detecting bright spots 51 on a display screen 5 based on an electronic limit sample 1 according to the present embodiment is provided, and the system includes:
the display module 2 is capable of illuminating a full black picture on which at least 4 pixels can be illuminated, wherein the gray scale of at least 4 pixels is adjustable. The four pixel points are white pixel points 11, and white is displayed; red pixel 12, which is red; blue pixel dots 13 which are blue; a green pixel 14, which is green; at least 4 pixel points are used as standard points to simulate the bright spots 51 of the defective display screen 5, which are used as decision criteria.
The image capturing module 3 can set standard values of four pixel points, and specifically, the standard values are characterized by gray values. Therefore, the size of the standard point and the brightness value can be regulated and controlled by regulating the gray value. Thereby meeting the conditions of different standards.
Further, the camera module 3 can also obtain the brightness and magnitude of the bright point 51 of the display screen 5, and then compare with the standard value. In other embodiments, the brightness and size of the bright spot 51 may be manually identified, such as when the bright spot 51 is particularly bright.
The judging module 4 is connected with the camera module 3, and then compares the brightness and the magnitude of the bright spots 51 of the standard point and the defect display screen 5, and outputs a judging result. If the bright point 51 of the display screen 5 to be tested is larger or brighter than the standard point, judging that the display screen 5 is a defective product, and displaying NG by popup window of the display screen 5; if the bright point 51 of the display screen 5 to be tested is smaller or darker than the standard point, the display screen 5 is judged to be qualified, and the popup window of the display screen 5 displays 'OK'.
Preferably, the judging module 4 can display defect information of the display screen 5 on the display screen 5 to be tested in a popup window mode, wherein the defect information comprises brightness values of the bright spots 51 and size value information of the bright spots 51; and information that the luminance value of the bright spot 51 of the display 5 is greater than the luminance value of the standard spot, and information that the size value of the bright spot 51 of the display 5 is greater than the size value of the standard spot. The defect information is displayed, so that development staff can continuously correct product defects in the later development and production process.
Further, in order to facilitate the electric test workers to extract the test results, the judging module 4 can set the position of the bright spot 51 of the display screen 5 to be indicated by a circle, a frame or an arrow with color, and the defect information display area 52 is arranged beside the circle, the frame or the arrow. So set up, make things convenient for staff's operation, avoid appearing the product because of asthenopia and leak the phenomenon and take place, initiate quality problems.
Example 3
The present embodiment proposes a terminal including a processor and a memory, in which a computer program is stored, which when called and executed by the processor can implement the method for detecting bright spots 51 on the display screen 5 based on the electronic limit sample 1 in embodiment 1.
It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Claims (10)
1. The display screen bright spot detection method based on the electronic limit sample is characterized by comprising the following steps of:
the display module writes a full black picture, and then at least four pixel points are opened in the full black picture, wherein the four pixel points are a first pixel point, a second pixel point, a third pixel point and a fourth pixel point respectively; the first pixel point is a white pixel point and presents white; the second pixel point is a red pixel point and is red; the third pixel point is a blue pixel point and is blue; the fourth pixel point is a green pixel point and is green; the above is an electronic limit sample for detecting the bright spots of the display screen, wherein the four pixel points are used as standard points for simulating the bright spots of the defect display screen and are used as a judgment standard;
the display screen to be detected is lightened, bright spots of the display screen to be detected are compared with the standard spots, if the bright spots of the display screen to be detected are larger than or brighter than the standard spots, the display screen is judged to be an unqualified product, and the display screen popup window displays NG;
the display screen to be detected is lightened, bright spots of the display screen to be detected are compared with the standard spots, if the bright spots of the display screen to be detected are smaller or darker than the standard spots, the display screen is judged to be qualified, and the display screen popup window displays OK; the size value and the brightness value of the standard point can be adjusted by adjusting the gray scale of the pixel point.
2. The electronic limit sample-based display screen bright spot detection method of claim 1, wherein the at least four pixel points are located at four corners of the full black picture.
3. The method of claim 2, wherein the first pixel and the second pixel, the third pixel and the fourth pixel are respectively located at diagonal positions of the full black frame.
4. The method for detecting bright spots on a display screen based on an electronic limit sample according to claim 3, wherein the four pixel points are four square points.
5. The method for detecting bright spots on a display screen based on an electronic limit sample according to claim 1, wherein the bright spots on the display screen to be detected are compared with the standard spots, and when the display screen to be detected is judged to be a defective product, a popup window is arranged on the display screen to be detected to display defect information of the display screen, wherein the defect information comprises brightness value of the bright spots and size value information of the bright spots.
6. The electronic limit sample-based display screen bright spot detection method according to claim 5, wherein the defect information further comprises information that a brightness value of the display screen bright spot is greater than a standard spot brightness value and information that a size value of the display screen bright spot is greater than a size value of the standard spot.
7. Display screen bright spot detecting system based on electron limit appearance, characterized by, include:
the display module can lighten a full black picture, at least 4 pixel points can lighten the full black picture, and the gray level of the pixel points is adjustable; the four pixel points are white pixel points and represent white; red pixel points, which represent red; blue pixel points, which represent blue; a green pixel point, which presents green; the at least 4 pixel points are used as standard points for simulating bright points of the defect display screen and are used as judgment standards;
the camera module can set the standard value of the four pixel points, the standard value is characterized by a gray value, and the size value and brightness of the standard point are regulated and controlled by adjusting the gray value; the brightness and the size value of the bright point of the display screen can be obtained;
the judging module can compare the brightness and the size value of the standard point and the bright point of the defect display screen and output a judging result; if the bright point of the display screen to be detected is larger or brighter than the standard point, judging that the display screen is a defective product, and displaying NG by using a popup window of the display screen; and if the bright point of the display screen to be detected is smaller or darker than the standard point, judging that the display screen is qualified, and displaying OK through the popup window of the display screen.
8. The inspection system of claim 7, wherein the judgment module is capable of popup displaying defect information of the display screen on the display screen to be inspected, the defect information including brightness value of the bright point and bright point size value information; and the brightness value of the bright point of the display screen is larger than the information of the standard point brightness value, and the size value of the bright point of the display screen is larger than the information of the size value of the standard point.
9. The inspection system of claim 8, wherein the display screen bright spot location is indicated with a circle, frame or arrow having a color, and the defect information is displayed next to the circle, frame or arrow.
10. A terminal comprising a processor and a memory, the memory having stored therein a computer program which, when invoked and executed by the processor, performs the method of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310857870.XA CN117058993A (en) | 2023-07-13 | 2023-07-13 | Display screen bright spot detection method and system based on electronic limit sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310857870.XA CN117058993A (en) | 2023-07-13 | 2023-07-13 | Display screen bright spot detection method and system based on electronic limit sample |
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| Publication Number | Publication Date |
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| CN117058993A true CN117058993A (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310857870.XA Pending CN117058993A (en) | 2023-07-13 | 2023-07-13 | Display screen bright spot detection method and system based on electronic limit sample |
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| CN (1) | CN117058993A (en) |
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- 2023-07-13 CN CN202310857870.XA patent/CN117058993A/en active Pending
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