CN112397038B - Method for compensating brightness of abnormal pixel of display device - Google Patents
Method for compensating brightness of abnormal pixel of display device Download PDFInfo
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- CN112397038B CN112397038B CN202010573092.8A CN202010573092A CN112397038B CN 112397038 B CN112397038 B CN 112397038B CN 202010573092 A CN202010573092 A CN 202010573092A CN 112397038 B CN112397038 B CN 112397038B
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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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- 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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The invention provides a method for compensating the brightness of an abnormal pixel of a display device. The display device includes a plurality of normal pixels. The method comprises the following steps: and enhancing the brightness of at least one normal pixel in the normal pixels to compensate the brightness of the abnormal pixel. The at least one normal pixel and the abnormal pixel have the same color and are adjacent to the abnormal pixel.
Description
Technical Field
The present invention relates to a compensation method, and more particularly, to a method for compensating luminance of an abnormal pixel of a display device.
Background
The display device comprises a plurality of pixels for displaying an image frame. However, in the manufacturing process of the display device, the pixels may be abnormal due to the manufacturing process, and the pixels cannot emit light normally, so that dark spots or dead spots are generated on the display device. The dark spots or dead spots may cause the display brightness of the display device to be non-uniform, thereby failing to provide a good user experience. Therefore, it is one of the important issues to compensate the luminance of the abnormal pixels of the display device by an appropriate compensation method so as to make the display luminance of the display device uniform.
Disclosure of Invention
The display luminance of the display device can be made uniform by compensating the luminance of the abnormal (abnormal) pixels of the display device by the compensation method of the present invention.
The present invention provides a method of compensating for the brightness of an abnormal pixel of a display device comprising a plurality of normal (normal) pixels. The method comprises the following steps: the brightness of at least one normal pixel in the normal pixels is enhanced to compensate the brightness of the abnormal pixel. At least one normal pixel and one abnormal pixel have the same color and are adjacent to the abnormal pixel.
In an embodiment of the present invention, the step of enhancing (enhance) the luminance of at least one of the normal pixels to compensate for the luminance of the abnormal pixel includes: providing an image signal corresponding to each of at least one of the normal pixels, the image signal including an original gray scale; generating an updated image signal including a raised (escaped) gray scale from the image signal; and providing the updated image signal to each of the at least one normal pixel.
In an embodiment of the present invention, the step of generating the updated image signal including the rising gray scale from the image signal includes: providing a weight ratio (weight ratio) corresponding to each of at least one of the normal pixels, wherein the weight ratio is greater than 0 and not greater than 1; and summing the original gray level of each of the at least one normal pixel in the normal pixels with an increment weight (increment weight) to obtain a corresponding ascending gray level, wherein the increment weight is obtained by multiplying the original gray level by a weight ratio.
In an embodiment of the invention, a sum of the weight ratios of at least one of the normal pixels is between 0.5 and 2.
In an embodiment of the invention, a sum of the weight ratios of at least one of the normal pixels is between 0.8 and 1.2.
In an embodiment of the invention, the sum of the weight ratios of at least one of the normal pixels is equal to 1.
In an embodiment of the invention, the weight ratio of at least one of the normal pixels is the same.
In an embodiment of the present invention, the step of enhancing the brightness of at least one normal pixel in the normal pixels to compensate the brightness of the abnormal pixel includes: providing an image signal corresponding to each of at least two normal pixels of the normal pixels, the image signal including an original gray scale, wherein a second normal pixel of the at least two normal pixels is located closer to the abnormal pixel than a first normal pixel of the at least two normal pixels; generating an update image signal including a rising gray level from the image signal, wherein the rising gray level of the second normal pixel is higher than that of the first normal pixel; and supplying the update image signal to each of at least two of the normal pixels.
In an embodiment of the present invention, the step of generating the updated image signal including the rising gray scale from the image signal includes: providing an image signal corresponding to the abnormal pixel, wherein the image signal comprises a gray scale; providing a weight ratio corresponding to each of at least one normal pixel among the normal pixels, wherein the weight ratio is greater than 0 and not greater than 1; and summing the original gray scale of each of at least one normal pixel in the normal pixels and the incremental weight to obtain a corresponding ascending gray scale, wherein the incremental weight is obtained by multiplying the gray scale and the weight ratio of the abnormal pixel.
Drawings
FIG. 1 is a schematic diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a method for compensating luminance of an abnormal pixel of a display device according to an embodiment of the invention;
FIG. 3 illustrates an abnormal pixel and a normal pixel adjacent thereto according to an embodiment of the present invention;
FIG. 4 is a detailed flowchart of the steps of enhancing the luminance of normal pixels to compensate for the luminance of abnormal pixels according to one embodiment of the present invention;
FIG. 5 is a detailed flowchart of the steps of enhancing the luminance of a normal pixel to compensate for the luminance of an abnormal pixel according to another embodiment of the present invention;
FIG. 6 is a detailed flowchart illustrating the steps of generating an updated image signal from an image signal according to an embodiment of the present invention;
FIG. 7 shows an abnormal pixel and a normal pixel adjacent thereto according to another embodiment of the present invention;
fig. 8 is a detailed flowchart showing the steps of generating an updated image signal from an image signal according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the present invention. Referring to fig. 1, the display device 100 of the present embodiment includes a processor circuit 110, a memory circuit 120 and a display panel 130. The display device 100 may be a display or a backlight for a display. The present invention does not limit the kind of the display device 100. The display panel 130 includes a plurality of pixels 132. The image signal S1 is provided to the processor circuit 110, and the processor circuit 110 is configured to provide the updated image signal S2 to the pixels 132. The pixel 132 as a light emitting unit includes three color sub-pixels, a red sub-pixel, a green sub-pixel and a blue sub-pixel. Alternatively, the red sub-pixel, the green sub-pixel and the blue sub-pixel can be distributed in different light emitting units. The light emitting unit may also include a white sub-pixel. The present invention does not impose limitations on the type of pixels 132.
The display device 100 may include, for example, a liquid crystal (liquid crystal) or a light emitting diode as a light emitting unit; the light emitting diode may include, for example, an Organic Light Emitting Diode (OLED), a submillimeter light emitting diode (mini LED), a micro light emitting diode (micro LED), or a quantum dot light emitting diode (QD, which may be, for example, a QLED or a QDLED), a fluorescent light (fluorescent), a phosphorescent light (phosphor), or other suitable materials, and the materials may be arranged and combined arbitrarily, but not limited thereto. Thus, the display device 100 includes a light emitting diode chip or a light emitting diode package. Taking the sub-millimeter led display device as an example, the sub-millimeter led display device includes led packages of red, green, and blue led chips. The sub-millimeter light emitting diode display device may also include a light emitting diode package of white light emitting diode chips.
The processor circuit 110 is used for executing a method for compensating the brightness of the abnormal pixel 134 of the display device 100. First, the display panel 130 is first lit (light on) with a red, green, blue or white pattern (pattern) to detect the coordinate position of the abnormal pixel 134. Display panel 130 may include one or more exception pixels 134. The abnormal pixel 134 is not limited to a pixel that is not lit at all, and may be a pixel that can be lit but cannot display a corresponding gray scale. Next, the processor circuit 110 records the coordinate position of the abnormal pixel 134 in the storage circuit 120 to compensate for the luminance of the abnormal pixel 134.
The processor circuit 110 may be a processor with computing capabilities. Alternatively, the processor circuit 110 may be designed through a Hardware Description Language (HDL) or any other design method for digital circuits familiar to those skilled in the art, and may be a hardware circuit implemented by a Field Programmable Gate Array (FPGA), a Complex Programmable Logic Device (CPLD), or an application-specific integrated circuit (ASIC). The memory circuit 120 may include volatile memory or nonvolatile memory. Furthermore, sufficient teaching, suggestion and implementation descriptions about the hardware structure of the processor circuit 110 and the memory circuit 120 can be obtained by the ordinary skill in the art, and are not repeated herein.
Fig. 2 is a schematic diagram illustrating a method for compensating the luminance of an abnormal pixel of a display device according to an embodiment of the invention. Referring to fig. 1 and fig. 2, the method for compensating the luminance of the abnormal pixel of the display device of the present embodiment is at least applicable to the display device 100 of fig. 1. In step S100, the processor circuit 110 enhances the brightness of at least one normal pixel 132 of the normal pixels 132 to compensate for the brightness of the abnormal pixel 134. In the present embodiment, at least one normal pixel 132 with enhanced brightness and the abnormal pixel 134 have the same color and are adjacent to the abnormal pixel 134.
Fig. 3 shows an abnormal pixel and a normal pixel adjacent to the abnormal pixel according to an embodiment of the invention. Referring to fig. 3, as shown in fig. 3, the normal pixels 132 expanded outward by one to four circles with the abnormal pixel 134 as the center belong to the normal pixels 132 adjacent to the abnormal pixel 134, and the brightness thereof can be enhanced to compensate for the brightness of the abnormal pixel 134.
FIG. 4 is a flowchart illustrating the steps of enhancing the luminance of a normal pixel to compensate for the luminance of an abnormal pixel according to an embodiment of the present invention. Referring to fig. 1, fig. 2 and fig. 4, in the present embodiment, the step S100 includes steps S200, S210 and S220. In step S200, image signals corresponding to each normal pixel 132 adjacent to the abnormal pixel 134 for compensating the abnormal pixel 134 are provided to the processor circuit 110, and the image signals include original gray levels. Different normal pixels 132 may have different original gray levels. In step S210, the processor circuit 110 generates an update image signal S2 including a rising gray level from the image signal S1. The rising gray level is a gray level obtained by increasing the value of the original gray level. The method for generating the rising gray level is to calculate the original gray level by the processor circuit 110 through its internal algorithm to generate the rising gray level. In step S220, the processor circuit 110 provides the updated image signal S2 to each of the normal pixels 132 adjacent to the abnormal pixel 134 for compensating the abnormal pixel 134.
Fig. 5 is a detailed flowchart illustrating the steps of enhancing the luminance of a normal pixel to compensate for the luminance of an abnormal pixel according to another embodiment of the present invention. Referring to fig. 1, fig. 2 and fig. 5, in the present embodiment, the normal pixels 132 include a first normal pixel 132_1 and a second normal pixel 132_2, as shown in fig. 3. The second normal pixel 132_2 is located closer to the abnormal pixel 134 than the first normal pixel 132_ 1. For example, the first normal pixel 132_1 is, for example, a normal pixel in the second circle, the second normal pixel 132_2 is, for example, a normal pixel in the first circle, and the second normal pixel 132_2 is located closer to the abnormal pixel 134. In another embodiment, the second normal pixel 132_2 is located, for example, in the first ring and above, below, left, or right of the abnormal pixel, and the first normal pixel 132_1 is located in the first ring and diagonal to the abnormal pixel.
In the present embodiment, step S100 includes steps S300, S310, and S320. In step S300, the image signal S1 corresponding to the first normal pixel 132_1 and the second normal pixel 132_2 is provided to the processor circuit 110, and the image signal S1 includes the original gray level. In step S310, the processor circuit 110 generates an update image signal S2 including a rising gray level from the image signal S1. The rising gray scale of the second normal pixel 132_2 is higher than that of the first normal pixel 132_ 1. That is, in the normal pixels 132_1 and 132_2 adjacent to the abnormal pixel 134 for compensating the abnormal pixel 134, the second normal pixel 132_2 closer to the abnormal pixel 134 has a higher rising gray level than the first normal pixel 132_1 farther from the abnormal pixel 134. In step S320, the processor circuit 110 provides the update image signal S2 to the first normal pixel 132_1 and the second normal pixel 132_ 2.
Fig. 6 is a detailed flowchart illustrating the steps of generating the updated image signal from the image signal according to an embodiment of the present invention. Fig. 7 shows an abnormal pixel and a normal pixel adjacent thereto according to another embodiment of the present invention. Referring to fig. 6 and 7, in fig. 7, 134_ B is an abnormal pixel, and 132_ a 1-132 _ A8 are normal pixels adjacent to the abnormal pixel. In the present embodiment, the processor circuit 110 calculates the original gray level by a first algorithm to generate the rising gray level. The first algorithm is as follows:
Ai’＝(1+ai)×Ai
wherein i is 1-8, Ai is an original gray scale, Ai' is a rising gray scale, Ai is a weight ratio, Ai is greater than 0 and not greater than 1, Ai × Ai is an incremental weight, and Ai × Ai is obtained by multiplying the original gray scale Ai of the normal pixel by the weight ratio Ai.
In the present embodiment, step S210 includes steps S400 and S410. In step S400, the processor circuit 110 provides the weight ratio ai corresponding to each of the normal pixels 132_ a1 through 132_ A8. In step S410, the processor circuit 110 sums the original gray level Ai of each of the normal pixels 132_ a 1-132 _ A8 and the incremental weight Ai × Ai to obtain the corresponding ascending gray level Ai'. In the present embodiment, the first algorithm does not consider the gray level that the abnormal pixel 134_ B is supposed to display.
In one embodiment, the weight ratios ai of each normal pixel 132_ A1-132 _ A8 are summed, the sum of which is between 0.5 and 2. In one embodiment, the weight ratios ai of each normal pixel 132_ A1-132 _ A8 are summed, the sum of which is between 0.8 and 1.2. In one embodiment, the weight ratios ai of each normal pixel 132_ A1-132 _ A8 are summed, the sum of which equals 1. In one embodiment, the weight ratio ai of each of the normal pixels 132_ A1-132 _ A8 is the same.
Fig. 8 is a detailed flowchart showing the steps of generating an updated image signal from an image signal according to another embodiment of the present invention. Referring to fig. 7 and 8, in the present embodiment, the processor circuit 110 calculates the original gray levels by a second algorithm to generate the rising gray levels. The second algorithm is as follows:
Ai’＝Ai+ai×B
wherein i is 1-8, Ai is an original gray scale, Ai' is a rising gray scale, B is a gray scale of the abnormal pixel, Ai is a weight ratio, Ai is greater than 0 and not greater than 1, Ai × B is an increment weight, and Ai × B is a weight ratio obtained by multiplying the gray scale B of the abnormal pixel by the weight ratio Ai of the normal pixel.
In the present embodiment, step S210 includes steps S500, S510, and S520. In step S500, the image signal S1 corresponding to the abnormal pixel 134_ B is further provided to the processor circuit 110, and the image signal S1 includes gray levels. In step S510, the processor circuit 110 provides a weight ratio ai corresponding to each of the normal pixels 132_ a 1-132 _ A8. The processor circuit 110 sums the original gray level Ai of each of the normal pixels 132_ A1-132 _ A8 and the incremental weight Ai × B to obtain the corresponding ascending gray level Ai'. In the present embodiment, the second algorithm considers the gray level that the abnormal pixel 134_ B is originally intended to display.
In summary, in the embodiment of the invention, the processor circuit detects the coordinate position of the abnormal pixel and performs the method of compensating the brightness of the abnormal pixel of the display device. The processor circuit enhances the luminance of a normal pixel adjacent to the abnormal pixel and having the same color to compensate for the luminance of the abnormal pixel. The processor circuit calculates an original gray level of the normal pixel or a gray level of the abnormal pixel through an algorithm therein to generate a corresponding rising gray level, and provides an update image signal including the rising gray level to each of the normal pixels for compensating the luminance of the abnormal pixel to compensate the luminance of the abnormal pixel.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A method of compensating for the brightness of an abnormal pixel of a display device, the display device including a plurality of normal pixels, the method comprising:
enhancing the brightness of at least one of the normal pixels to compensate for the brightness of the abnormal pixel, comprising:
providing an image signal corresponding to each of the at least one of the normal pixels, the image signal including an original gray level;
generating an update image signal including a rising gray scale from the image signal; and
providing the update image signal to each of the at least one of the normal pixels,
wherein the at least one normal pixel and the abnormal pixel have the same color and are adjacent to the abnormal pixel.
2. The method of compensating for the luminance of an abnormal pixel of a display device according to claim 1, wherein the step of generating the update image signal including the rising gray scale from the image signal comprises:
providing a weight ratio corresponding to each of the at least one of the normal pixels, wherein the weight ratio is greater than 0 and not greater than 1; and
adding the original gray scale and an increment weight of each of the at least one normal pixel to obtain the corresponding ascending gray scale, wherein the increment weight is obtained by multiplying the original gray scale and the weight ratio.
3. The method according to claim 2, wherein the sum of the weight ratios of the at least one of the normal pixels is between 0.5 and 2.
4. The method according to claim 2, wherein the sum of the weight ratios of the at least one of the normal pixels is between 0.8 and 1.2.
5. The method of compensating for the luminance of an abnormal pixel of a display device according to claim 2, wherein a sum of the weight ratios of the at least one of the normal pixels is equal to 1.
6. The method of compensating for the luminance of an abnormal pixel of a display device according to claim 5, wherein the weight ratio of the at least one of the normal pixels is the same.
7. The method of compensating for the luminance of an abnormal pixel of a display device according to claim 1, wherein the step of generating the update image signal including the rising gray scale from the image signal comprises:
providing an image signal corresponding to the abnormal pixel, wherein the image signal comprises a gray scale;
providing a weight ratio corresponding to each of the at least one of the normal pixels, wherein the weight ratio is greater than 0 and not greater than 1; and
adding the original gray level of each of the at least one normal pixel of the normal pixels to an incremental weight to obtain the corresponding ascending gray level, wherein the incremental weight is obtained by multiplying the gray level of the abnormal pixel by the weight ratio.
8. A method of compensating for the brightness of an abnormal pixel of a display device, the display device including a plurality of normal pixels, the method comprising:
enhancing the luminance of at least two normal pixels among the normal pixels to compensate for the luminance of the abnormal pixel, including:
providing an image signal corresponding to each of the at least two normal pixels of the normal pixels, the image signal including an original gray level, wherein a second normal pixel of the at least two normal pixels is located closer to the abnormal pixel than a first normal pixel of the at least two normal pixels;
generating an update image signal including a rising gray scale from the image signal, wherein the rising gray scale of the second normal pixel is higher than the rising gray scale of the first normal pixel; and
providing the update image signal to each of the at least two of the normal pixels,
wherein the at least two normal pixels have the same color as the abnormal pixel and are adjacent to the abnormal pixel.
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| US10885827B2 (en) * | 2014-12-29 | 2021-01-05 | Novatek Microelectronics Corp. | Display panel for effectively dispersing specific sub-pixels |
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| CN107358935B (en) * | 2017-08-25 | 2019-12-31 | 惠科股份有限公司 | Optimization mode and equipment for brightness compensation data quantity |
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