CN112255204B - Display panel detection method, display panel and display device - Google Patents
Display panel detection method, display panel and display device Download PDFInfo
- Publication number
- CN112255204B CN112255204B CN202011134483.6A CN202011134483A CN112255204B CN 112255204 B CN112255204 B CN 112255204B CN 202011134483 A CN202011134483 A CN 202011134483A CN 112255204 B CN112255204 B CN 112255204B
- Authority
- CN
- China
- Prior art keywords
- display
- pixel unit
- display panel
- area
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 238000002834 transmittance Methods 0.000 claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 29
- 238000013507 mapping Methods 0.000 claims abstract description 5
- 238000012937 correction Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 24
- 238000007689 inspection Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
- G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30121—CRT, LCD or plasma display
Abstract
The detection method of the display panel comprises the following steps: acquiring the area of a first display area, the area and the coordinates of each first pixel unit by using an image acquisition device; illuminating each first pixel unit by using a standard light source with first brightness, and acquiring second brightness penetrating through each first pixel unit by using an image acquisition device; according to the formula t=k (LV 2/LV 1) x (A2 (x，y) The light transmittance of each first pixel unit is calculated, the mapping relation between each first pixel unit and the light transmittance is stored as a lookup table, and the lookup table is called to optically compensate the parameters of the optical devices corresponding to the display panel; where T represents the light transmittance, K represents the correction coefficient, LV1 represents the first luminance, LV2 represents the second luminance, A1 represents the area of the first display region, (x, y) represents the coordinates of each first pixel cell, and A2 represents the area of the first pixel cell having coordinates (x, y).
Description
Technical Field
The disclosure belongs to the technical field of display, and particularly relates to a detection method of a display panel, the display panel and a display device.
Background
With the continuous development of display technology, the full-screen display product also gradually becomes the main stream of the display product market, especially the smart phone market. The margin of the current full-screen display product is limited, and the concept of an under-screen camera is generated in order to further improve the use experience of a user. The under-screen camera is embedded into the product, and meanwhile, the display of the product is not affected when the camera is not opened. That is, in the upper portion of the camera, there is a pixel unit having therein a pixel circuit or the like for driving the light emitting device to emit light. In order not to affect the normal use of the camera, the pixel circuit on the camera needs to have a considerable light transmittance so as to ensure that the light energy of the camera can be normally emitted and the image can be obtained. In the assembly process of the full-screen display products such as the smart phone, the light transmittance of the display panel and the matching of the light source are required to be fully considered, and a large amount of equipment, calculation and debugging are required to be realized. Because the process of each display panel is inconsistent, the light transmittance can be different, and parameters such as the light transmittance of each display panel and the parameters of the camera are required to be matched and debugged, so that huge workload and cost investment are required, and the assembly efficiency is affected.
Disclosure of Invention
The disclosure aims to at least solve one of the technical problems in the prior art, and provides a detection method of a display panel, the display panel and a display device.
In a first aspect, an embodiment of the present disclosure provides a method for detecting a light transmittance of a display substrate; the display panel has a first display area and a second display area surrounding the first display area; the display panel includes: a plurality of first pixel units arranged in the first display area; the first pixel unit is a transparent pixel unit; the detection method of the display panel comprises the following steps:
acquiring the area of the first display area, the area and the coordinates of each first pixel unit by using an image acquisition device;
illuminating each first pixel unit by using a standard light source with first brightness, and acquiring second brightness penetrating each first pixel unit by using an image acquisition device;
according to the formula t=k (LV 2/LV 1) x (A2 (x，y) The light transmittance of each first pixel unit is calculated, the mapping relation between each first pixel unit and the light transmittance is stored as a lookup table, and the lookup table is called to optically compensate the parameters of the optical devices corresponding to the display panel;
where T represents the light transmittance, K represents the correction coefficient, LV1 represents the first luminance, LV2 represents the second luminance, A1 represents the area of the first display region, (x, y) represents the coordinates of each first pixel cell, and A2 represents the area of the first pixel cell having coordinates (x, y).
Optionally, the acquiring the area of the first display area by using image acquisition includes:
acquiring third brightness of the first display area and fourth brightness of the second display area by using the image acquisition device in a display state;
acquiring the boundary of the first display area according to the third brightness, the fourth brightness and the coordinates of each first pixel unit;
and calculating the area of the first display area according to the boundary of the first display area.
Optionally, the image acquisition device comprises a charge coupled device.
Optionally, the acquiring, by using an image capturing device, the second brightness transmitted through each of the first pixel units includes:
acquiring initial second brightness transmitted through each first pixel unit by using the image acquisition device;
and denoising the ambient light brightness in the initial second brightness according to a preset algorithm to obtain the second brightness.
In a second aspect, embodiments of the present disclosure provide a display panel having a first display area and a second display area surrounding the first display area; the display panel includes: a plurality of first pixel units arranged in the first display area; the first pixel unit is a transparent pixel unit; the display panel is characterized in that the display panel further comprises: a storage module; the storage module stores a lookup table acquired by using the inspection method of the display panel provided above; the lookup table comprises the light transmittance corresponding to each first pixel unit.
Optionally, the display panel further includes: a plurality of second pixel units arranged in the second display area;
the density of the first pixel unit is smaller than that of the second pixel unit.
Optionally, the first pixel unit and the second pixel unit each include an organic electroluminescent device.
In a third aspect, embodiments of the present disclosure provide a display device including a display panel as provided above.
Optionally, the display device further includes: an optical device disposed corresponding to the first display region of the display panel;
the optical device is positioned at one side away from the light emitting direction of the first pixel unit.
Optionally, the optics comprise a camera.
Drawings
FIG. 1 is a schematic diagram of an exemplary display panel;
FIG. 2 is a schematic diagram of an exemplary pixel circuit;
fig. 3 is a flow chart of a method for detecting a display panel according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the disclosure.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present disclosure, the present disclosure will be described in further detail with reference to the accompanying drawings and detailed description.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Fig. 1 is a schematic structural diagram of an exemplary display panel, as shown in fig. 1, the display substrate has a first display area and a second display area surrounding the first display area, wherein a plurality of first pixel units 101 arranged in an array are disposed in the first display area, and a plurality of second pixel units 102 arranged in an array are disposed in the second display area. In the full screen display product, a camera, a light sensor, etc. may be embedded in the position of the first display area, and the camera will be exemplified in this disclosure. In the display process, the first pixel unit 101 of the first display area and the second pixel unit 102 of the second display area may be both lit up, so as to realize a display function. In the shooting process, the first pixel unit 101 of the first display area may be turned off, the first pixel unit 101 may be a transparent pixel unit, and light may be transmitted and incident into the camera, so as to realize a shooting function. In this way, the display function of the first pixel unit 101 of the first display area is not affected, and the shooting function of the camera is not affected, so that a full-screen display effect in a real sense is realized. In practical applications, the first pixel unit 101 of the first display area and the second pixel unit 102 of the second display area generally include pixel circuits, and the structures of the pixel circuits in the two areas are the same, and a basic 2T1C pixel circuit will be described as an example in this disclosure. Fig. 2 is a schematic structural diagram of an exemplary pixel circuit, and as shown in fig. 2, the pixel circuit includes: a switching transistor T1, a driving transistor T2, and a storage capacitor C; the control electrode of the switching transistor T1 is connected to the control electrode signal line Gate, the first electrode is connected to the Data signal line Data, and the second electrode is connected to the first node N, where the first node N is a connection point between the second electrode of the switching transistor T1, the control electrode of the driving transistor T2, and one end of the storage capacitor C. The driving transistor T2 has a control electrode connected to the first node N, a first electrode connected to the first power line VDD, and a second electrode connected to the first electrode of the light emitting device D. One end of the storage capacitor C is connected with the first node N, and the other end of the storage capacitor C is connected with the first power line VDD. The first pole of the light emitting device D is connected to the second pole of the driving transistor T2, and the second pole is connected to the second power line VSS. The potential of the first power signal input by the first power line VDD is greater than the potential of the second power signal input by the second power line VSS, so that the two ends of the light emitting device D are turned on to emit light by forming a voltage difference. The light emitting device D may be an organic light emitting diode, a micro light emitting diode, an inorganic light emitting diode, or the like, and the light emitting device D will be described as an example of the organic light emitting diode in the present disclosure. In practical applications, in order to ensure that the first pixel unit 101 in the display panel has good light transmittance, the first pixel unit 101 is generally a transparent pixel unit, and each film layer of the transistor, the capacitor and other devices in the pixel circuit may be made of a transparent material, however, the light transmittance of each first pixel unit 101 may not reach 100% completely due to the material properties of each film layer at present. In the assembly process of the full-screen display products such as the smart phone, the light transmittance of the display panel and the matching of the light source are required to be fully considered, and a large amount of equipment, calculation and debugging are required to be realized. Because the process of each display panel is inconsistent, the light transmittance can be different, and parameters such as the light transmittance of each display panel and the parameters of the camera are required to be matched and debugged, so that huge workload and cost investment are required, and the assembly efficiency is affected. In order to solve the above technical problems, the present disclosure provides a method for detecting a display panel, a display panel and a display device, and the method for detecting a display panel, the display panel and the display device provided by the present disclosure will be described in further detail with reference to the accompanying drawings and detailed description.
Example 1
Fig. 3 is a flow chart of a method for detecting a display panel according to an embodiment of the disclosure, as shown in fig. 3, the method for detecting a display panel includes the following steps:
in step S301, the area of the first display area, the area and the coordinates of each first pixel unit are acquired by using the image capturing device.
It should be noted that the resolution of the image capturing device is generally significantly higher than the resolution of the first pixel unit 101 in the display panel, and the resolution of the image capturing device may be appropriately adjusted. When each first pixel unit 101 in the display panel is lit, each first pixel unit 101 may display to form a display screen, and at this time, the image capturing device may capture the display screen formed by each first pixel unit 101, and may obtain the area of the first display area according to the display screen. Meanwhile, the area and coordinates of each first pixel 101 can be acquired corresponding to the coordinate system in the image acquisition device. It should be further noted that, the coordinates of the first pixel unit 101 may be represented by the coordinates of the center point of the first pixel unit 101, or may be represented by the number of rows and columns of the first pixel unit 101, for example, the coordinates of the first pixel unit 101 are (6, 7), that is, the 6 th row and 7 th column of the pixel array of the display panel where the first pixel unit 101 is located. It can be appreciated that when the area of the first display area and the area of the first pixel unit 101 are acquired, the resolution of the image capturing device can be adjusted to match the measured parameter, so as to improve the accuracy of measurement and the efficiency of measurement, because there is a significant difference between the two sizes.
In step S302, each first pixel unit is irradiated with a standard light source having a first brightness, and a second brightness transmitted through each first pixel unit is obtained by using the image capturing device.
The light emitting devices in the respective first pixel units 101 do not emit light by turning off the respective first pixel units 101. The luminance information of the standard light source, which can emit light having the first luminance, is determined by placing the standard light source on a side facing away from the display side of the display panel, i.e., a side facing away from the light emitting direction of the first pixel units 101, with which the respective first pixel units 101 are illuminated, on the display side of the display panel the image capturing device can obtain the second luminance transmitted through the respective first pixel units. It will be appreciated that the second brightness is generally less than the first brightness due to the shielding effect of the film layer in the first pixel cell 101.
Step S3013, according to the formula t=k (LV 2/LV 1) ×2 (A2 (x，y) The light transmittance of each first pixel unit is calculated, the mapping relation between each first pixel unit and the light transmittance is stored as a lookup table, and the lookup table is called to optically compensate the parameters of the camera corresponding to the display panel; where T represents the light transmittance, K represents the correction coefficient, LV1 represents the first luminance, LV2 represents the second luminance, A1 represents the area of the first display region, (x, y) represents the coordinates of each first pixel cell, and A2 represents the area of the first pixel cell having coordinates (x, y).
It should be noted that, since the areas of the respective first pixel units 101 in the first display area may be different from each other, and the light transmittance is related to the transmittance of the first pixel unit 101 and the area of the first display area, the area of the first pixel unit, the first brightness of the first pixel unit irradiated, and the second brightness of the first pixel unit transmitted, the light transmittance of the respective first pixel units 101 with different coordinates may be calculated using the above formula. And storing the mapping relation between each first pixel unit 101 and the light transmittance as a lookup table, and burning the formed lookup table into a storage medium by using a burning device, wherein the storage medium can be a flash memory, a floppy disk, an optical disk and the like, so as to be used for retrieving data in the lookup table to optically compensate the optical device in the process of assembling the display panel and the corresponding optical device.
In the method for detecting a display panel provided in the embodiments of the present disclosure, an image acquisition device may be used to obtain and calculate light transmittance of the first pixel units 101 with different coordinates according to an area of the first display area, an area of the first pixel unit, a first brightness of the first pixel unit irradiated and a second brightness of the first pixel unit transmitted, and store each first pixel unit 101 and the corresponding light transmittance as a lookup table. In this way, the light transmittance of the first pixel units 101 in each display panel is obtained after the preparation of each display panel, and in the process of assembling the display panel and the corresponding optical device, the light transmittance of each first pixel unit 101 can be directly obtained from a stored lookup table, and then the parameters of the optical device are referenced for matching, so that the optical device can realize optical compensation at the pixel level, thereby greatly saving the time and labor and equipment cost for debugging the optical device, and further improving the assembly efficiency.
In some embodiments, in step S301, the area of the first display area is acquired by using image acquisition, which may be specifically implemented as follows: in a display state, acquiring third brightness of the first display area and fourth brightness of the second display area by using an image acquisition device; acquiring the boundary of the first display area according to the third brightness, the fourth brightness and the coordinates of each first pixel unit; and calculating the area of the first display area according to the boundary of the first display area.
It should be noted that, since the optical device needs to be disposed at the position corresponding to the first display area, in order not to affect the light incident into the optical device through the first pixel unit 101 in the first display area, and in order to improve the display effect of the display screen in the second display area, the density of the first pixel unit 101 in the first display area is generally smaller than that of the second pixel unit 102 in the second display area, so that the brightness of the first display area and the brightness of the second display area have a certain difference. The pixel units in the first display area and the second display area in the display panel are both lightened, meanwhile, the resolution of the image acquisition device is adjusted, in a display state, the image acquisition device can be used for acquiring third brightness of the first display area and fourth brightness of the second display area, the brightness value of the third brightness is lower than that of the fourth brightness, and the image acquisition device is used for accurately acquiring the boundary of the first display area by combining the coordinates of each first pixel unit 101, so that the area of the first display area is calculated.
In some embodiments, the image acquisition apparatus comprises a charge coupled device.
It should be noted that in the embodiment of the present disclosure, the image capturing Device may be a Charge-coupled Device (CCD) or a complementary metal oxide (Complementary Metal Oxide Semiconductor, CMOS) camera, etc., and in the embodiment of the present disclosure, the image capturing Device is illustrated as a CCD, and the image capturing Device may be a CCD on a Demura station, and no new Device is required, so that the detection cost may be reduced. Of course, the image capturing device herein may be other image capturing apparatuses with high resolution and high accuracy, which are not listed here.
In some embodiments, in step S302, the image capturing device is used to obtain the second brightness transmitted through each first pixel unit, which may be specifically implemented as follows: acquiring initial second brightness transmitted through each first pixel unit by using an image acquisition device; and denoising the ambient light brightness in the initial second brightness according to a preset algorithm to obtain the second brightness.
It should be noted that, under the state where each first pixel unit 101 is closed, the initial second brightness transmitted through each first pixel unit is acquired by the image acquisition device, and the acquired initial second brightness has a certain noise due to the influence of the ambient light, and the measured results are different in the non-environment. Therefore, the denoising process is required to be performed on the obtained initial second brightness transmitted through each first pixel unit 101, so as to remove the ambient light factor therein, thereby obtaining accurate second brightness, further improving the accuracy of the finally calculated light transmittance, and avoiding the influence of ambient light.
Example two
Fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure, and as shown in fig. 4, the display panel has a first display area and a second display area surrounding the first display area; the display panel includes: a plurality of first pixel units 101 disposed in the first display area; the first pixel unit 101 is a transparent pixel unit; the display panel further includes: a storage module 103; the storage module 103 stores a lookup table acquired by using the inspection method of the display panel provided by the above-described embodiment; the lookup table comprises the light transmittance corresponding to each first pixel unit.
It should be noted that, unlike the above-mentioned exemplary display panel, the display panel provided in the embodiment of the present disclosure has a lookup table stored in the storage module 103, where the lookup table includes the light transmittance corresponding to each first pixel unit 101. It can be understood that the storage module 103 may be specifically a flash memory, a floppy disk, an optical disk, or the like, or may be an original device with a storage function for a display device, and in the practical application process, only relevant data of the transmittance of each first pixel unit needs to be written in an original structure, so as to save cost. In this way, the light transmittance of the first pixel units 101 in each display panel is obtained after the preparation of each display panel, and in the process of assembling the display panel and the corresponding optical device, the light transmittance of each first pixel unit 101 can be directly obtained from a stored lookup table, and then the parameters of the optical device are referenced for matching, so that the optical device can realize optical compensation at the pixel level, thereby greatly saving the time and labor and equipment cost for debugging the optical device, and further improving the assembly efficiency.
In some embodiments, the display panel further includes: a plurality of second pixel units 102 disposed in the second display area; the density of the first pixel unit 101 is less than that of the second pixel unit 102.
It should be noted that, in practical application, the density of the first pixel units 101 in the first display area may be smaller than the density of the second pixel units 102 in the second display area, so that the light transmittance of the whole first display area may be improved, thereby avoiding the shielding of the first pixel units 101 in the first display area to light, and simultaneously ensuring that the second pixel units 102 in the second display area have higher resolution, and improving the display effect.
In some embodiments, the first pixel unit 101 and the second pixel unit 102 each include an organic electroluminescent device.
It should be noted that, in practical application, the first pixel unit 101 and the second pixel unit 102 are made of the same light emitting device, so as to facilitate the display effect of the display panel, and both may be organic electroluminescent devices. It is understood that the first pixel unit 101 and the second pixel unit 102 may be made of other types of light emitting devices, which are not listed here.
Example III
The embodiment of the disclosure provides a display device, which comprises the display panel provided by any one of the embodiments. The display device can be a mobile phone, a tablet personal computer, an intelligent television, an intelligent watch and other terminal equipment, and the implementation principle is the same as that of the display panel provided by the embodiment, and is not repeated here.
In some embodiments, the display device further comprises: an optical device disposed corresponding to the first display region of the display panel; the optical device is positioned at one side away from the light emitting direction of the first pixel unit.
It should be noted that, the optical device is located at a side deviating from the light emitting direction of the first pixel unit, that is, located at the bottom of the display panel, so that the space of the display panel is not required to be occupied, the screen occupation ratio of the display panel is improved, and a truly comprehensive screen is realized, thereby improving the display effect.
In some embodiments, the optics comprise a camera.
It should be noted that the optical device may be a camera, so as to form an under-screen camera in the overall-screen display product, thereby improving the display effect. It will be appreciated that the optical device may be a light sensor or other device, which is not shown here.
It is to be understood that the above embodiments are merely exemplary embodiments employed to illustrate the principles of the present disclosure, however, the present disclosure is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the disclosure, and are also considered to be within the scope of the disclosure.
Claims (10)
1. A detection method of display panel, is used for detecting the light transmittance of the display base plate; the display panel has a first display area and a second display area surrounding the first display area; the display panel includes: a plurality of first pixel units arranged in the first display area; the first pixel unit is a transparent pixel unit; the detection method of the display panel is characterized by comprising the following steps:
acquiring the area of the first display area, the area and the coordinates of each first pixel unit by using an image acquisition device;
illuminating each first pixel unit by using a standard light source with first brightness, and acquiring second brightness penetrating each first pixel unit by using an image acquisition device;
according to the formula t=k (LV 2/LV 1) x (A2 (x，y) The light transmittance of each first pixel unit is calculated, the mapping relation between each first pixel unit and the light transmittance is stored as a lookup table, and the lookup table is called to optically compensate the parameters of the optical devices corresponding to the display panel;
where T represents the light transmittance, K represents the correction coefficient, LV1 represents the first luminance, LV2 represents the second luminance, A1 represents the area of the first display region, (x, y) represents the coordinates of each first pixel cell, and A2 represents the area of the first pixel cell having coordinates (x, y).
2. The method of claim 1, wherein the acquiring the area of the first display area using image acquisition comprises:
acquiring third brightness of the first display area and fourth brightness of the second display area by using the image acquisition device in a display state;
acquiring the boundary of the first display area according to the third brightness, the fourth brightness and the coordinates of each first pixel unit;
and calculating the area of the first display area according to the boundary of the first display area.
3. The method of claim 1, wherein the image capture device comprises a charge coupled device.
4. The method according to claim 1, wherein the acquiring, by the image acquisition device, the second luminance transmitted through each of the first pixel units, comprises:
acquiring initial second brightness transmitted through each first pixel unit by using the image acquisition device;
and denoising the ambient light brightness in the initial second brightness according to a preset algorithm to obtain the second brightness.
5. A display panel having a first display region and a second display region surrounding the first display region; the display panel includes: a plurality of first pixel units arranged in the first display area; the first pixel unit is a transparent pixel unit; the display panel is characterized in that the display panel further comprises: a storage module; the storage module stores a lookup table obtained by using the inspection method of a display panel according to any one of claims 1 to 4; the lookup table comprises the light transmittance corresponding to each first pixel unit.
6. The display panel of claim 5, further comprising: a plurality of second pixel units arranged in the second display area;
the density of the first pixel unit is smaller than that of the second pixel unit.
7. The display panel of claim 6, wherein the first pixel cell and the second pixel cell each comprise an organic electroluminescent device.
8. A display device comprising a display panel according to any one of claims 5-7.
9. The display device according to claim 8, wherein the display device further comprises: an optical device disposed corresponding to the first display region of the display panel;
the optical device is positioned at one side away from the light emitting direction of the first pixel unit.
10. The display device of claim 9, wherein the optical device comprises a camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011134483.6A CN112255204B (en) | 2020-10-21 | 2020-10-21 | Display panel detection method, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011134483.6A CN112255204B (en) | 2020-10-21 | 2020-10-21 | Display panel detection method, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112255204A CN112255204A (en) | 2021-01-22 |
| CN112255204B true CN112255204B (en) | 2024-03-15 |
Family
ID=74263327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011134483.6A Active CN112255204B (en) | 2020-10-21 | 2020-10-21 | Display panel detection method, display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112255204B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140086619A (en) * | 2012-12-28 | 2014-07-08 | 삼성디스플레이 주식회사 | Display device, Optical compensation system and Optical compensation method thereof |
| CN111564133A (en) * | 2020-06-12 | 2020-08-21 | 京东方科技集团股份有限公司 | Driving method and driving device of display panel and display device |
-
2020
- 2020-10-21 CN CN202011134483.6A patent/CN112255204B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140086619A (en) * | 2012-12-28 | 2014-07-08 | 삼성디스플레이 주식회사 | Display device, Optical compensation system and Optical compensation method thereof |
| CN111564133A (en) * | 2020-06-12 | 2020-08-21 | 京东方科技集团股份有限公司 | Driving method and driving device of display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112255204A (en) | 2021-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10380944B2 (en) | Structural and low-frequency non-uniformity compensation | |
| US11721285B2 (en) | Display screen, display device, display circuit and brightness compensation method therefor | |
| CN108766254B (en) | Foldable display panel, display device, image compensation method and device thereof | |
| WO2018188298A1 (en) | Fingerprint recognition detection circuit, touch screen and display apparatus | |
| CN104252844B (en) | Image element circuit and its driving method, organic electroluminescence display panel and display device | |
| US8194469B2 (en) | Optical sensor element, imaging device, electronic equipment and memory element | |
| CN100470628C (en) | Image display apparatus | |
| CN103348475B (en) | Sensor or the improvement that relates to sensor | |
| CN110164384B (en) | Brightness compensation method and device | |
| CN106098736B (en) | Organic Electricity laser display substrate, display panel and display device | |
| US20160224157A1 (en) | Pixel circuit, driving method thereof and display device | |
| JP6553406B2 (en) | Program and information processing apparatus | |
| US20210407435A1 (en) | Compensation apparatus and method of light-emitting device, display device, display substrate and fabrication method thereof | |
| CN109298804B (en) | Touch circuit and driving method thereof, touch substrate and display device | |
| CN107591127A (en) | Image element circuit, array base palte, organic EL display panel and display device | |
| CN112767879A (en) | Display panel, brightness detection method and display device | |
| US10699638B2 (en) | Structural and low-frequency non-uniformity compensation | |
| CN105044955A (en) | Photoelectric sensor, driving method thereof, array substrate and display device | |
| CN210627870U (en) | Display panel and display device | |
| CN102063224A (en) | Sensor device, method of driving sensor element, display device and electronic apparatus | |
| CN111293126B (en) | Array substrate, organic light-emitting display panel and display device | |
| CN108803932A (en) | Pixel circuit, array substrate, display panel and its driving method | |
| CN100405068C (en) | Apparatus and method for testing organic electroluminescence display panel | |
| CN112255204B (en) | Display panel detection method, display panel and display device | |
| CN105047129B (en) | Structure and low frequency Inconsistency compensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |