# US 12,603,041 B2 · Display panel and electronic device

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- Number: US 12,603,041 B2
- Document ID: US12603041B2
- Status: Granted
- Kind: B2
- Application number: 18/566,182
- Filed: 2023-10-31
- Published: 2025-04-10
- Granted: 2026-04-14
- Earliest claimed: 2023-10-09
- Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Inventors: Jaehyeong Jeong; Huilan Zhan
- Web page: https://patentgrep.com/patent/US12603041B2

## CPC

- G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED]
- G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)}
- G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G 2320/0233: Improving the luminance or brightness uniformity across the screen
- G09G 2320/0673: for control of gamma adjustment, e.g. selecting another gamma curve
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A display panel and an electronic device are disclosed. The display panel includes a panel body comprising a first sub-pixel and a second sub-pixel of different colors, and a driver chip electrically connected to the first sub-pixel and the second sub-pixel. The driver chip includes an adjustment module, configured to determine whether the first sub-pixel does not emit light and whether a plurality of second sub-pixels around the first sub-pixel emit light and to adjust an original gamma voltage of the first sub-pixel to generate a target gamma voltage when the first sub-pixel does not emit light and the plurality of second sub-pixels around the first sub-pixel emit light. The target gamma voltage is greater than the original gamma voltage.

## Claims

### Claim 1

A display panel, comprising:
a panel body, comprising a first sub-pixel and a second sub-pixel of different colors, the first sub-pixel having a first gray value, and the second sub-pixel having a second gray value; and
a driver chip, electrically connected to the first sub-pixel and the second sub-pixel, and comprising:
a storage module, configured to store the second gray value of the second sub-pixel;
an adjustment module, configured to determine whether the first sub-pixel does not emit light and whether a plurality of second sub-pixels around the first sub-pixel emit light and to adjust an original gamma voltage of the first sub-pixel to generate a target gamma voltage when the first sub-pixel does not emit light and the plurality of second sub-pixels around the first sub-pixel emit light, wherein the adjustment module comprises:
an analysis and calculation module, configured to determine whether the first sub-pixel does not emit light and whether the plurality of second sub-pixels around the first sub-pixel emits light and to generate a plurality of weight parameters of the second sub-pixels around the first sub-pixel when the first sub-pixel does not emit light and the plurality of second sub-pixels around the first sub-pixel emit light; and
a data conversion module, configured to adjust the original gamma voltage to generate the target gamma voltage greater than the original gamma voltage according to the weight parameters;
wherein the adjustment module is further configured to determine whether the second sub-pixels around the first sub-pixel emit light according to the second gray value.

### Claim 2 (depends on 1)

The display panel of claim 1, wherein the analysis and calculation module is further configured to generate the weight parameters according to a number of the second sub-pixels that emit light.

### Claim 3 (depends on 1)

The display panel of claim 1, wherein the storage module comprises a row storage module, and the adjustment module is further configured to obtain a plurality of second gray values corresponding to the plurality of second sub-pixels of a previous row of the first sub-pixel from the row storage module;
wherein the driver chip further comprises an image processing module, and the adjustment module is further configured to obtain a plurality of second gray values corresponding to the plurality of second sub-pixels of a current row of the first sub-pixel from the image processing module;
wherein the row storage module is configured to sequentially obtain a plurality of second gray values corresponding to a plurality of second sub-pixels of multiple rows from the image processing module.

### Claim 4 (depends on 3)

The display panel of claim 3, wherein the image processing module is configured to acquire an image signal and process the image signal to generate a target image signal to the adjustment module;
wherein the adjustment module is configured to determine the first gray value of the first sub-pixel according to the target image signal and determine whether the first sub-pixel does not emit light according to the first gray value.

### Claim 5 (depends on 1)

The display panel of claim 1, wherein the storage module comprises a row storage module, and the driver chip comprises:
an image processing module, comprising the row storage module and an image enhancement module, wherein the adjustment module is configured to obtain a plurality of second gray values corresponding to the plurality of second pixels of a previous row of the first sub-pixel from the row storage module and to obtain a plurality of second gray values corresponding to the plurality of second pixels of a current row of the first sub-pixel from the image enhancement module;
wherein the row storage module is configured to sequentially obtain a plurality of second gray values corresponding to a plurality of second sub-pixels of multiple rows from the image enhancement module.

### Claim 6 (depends on 5)

The display panel of claim 5, wherein the image processing module is configured to acquire an image signal and utilizes the image enhancement module to process the image signal to generate an enhanced image signal to the adjustment module;
wherein the adjustment module is configured to determine the first gray scale value of the first sub-pixel according to the enhanced image signal and determine whether the first sub-pixel does not emit light according to the first gray value.

### Claim 7

A display panel, comprising:
a panel body, comprising a first sub-pixel and a second sub-pixel of different colors, the first sub-pixel having a first gray value, and the second sub-pixel having a second gray value; and
a driver chip, electrically connected to the first sub-pixel and the second sub-pixel;
wherein the driver chip comprises:
an adjustment module, configured to determine whether the first sub-pixel does not emit light and whether a plurality of second sub-pixels around the first sub-pixel emit light and to adjust an original gamma voltage of the first sub-pixel to generate a target gamma voltage when the first sub-pixel does not emit light and the plurality of second sub-pixels around the first sub-pixel emit light;
wherein the target gamma voltage is greater than the original gamma voltage.

### Claim 8 (depends on 7)

The display panel of claim 7, wherein the adjustment module comprises:
an analysis and calculation module, configured to determine whether the first sub-pixel does not emit light and whether the plurality of second sub-pixels around the first sub-pixel emits light and to generate a plurality of weight parameters of the second sub-pixels around the first sub-pixel when the first sub-pixel does not emit light and the plurality of second sub-pixels around the first sub-pixel emit light; and
a data conversion module, configured to adjust the original gamma voltage to generate the target gamma voltage according to the weight parameters.

### Claim 9 (depends on 8)

The display panel of claim 8, wherein the analysis and calculation module is further configured to generate the weight parameters according to a number of the second sub-pixels that emit light.

### Claim 10 (depends on 7)

The display panel of claim 7, wherein the driver chip further comprises:
a storage module, configured to store the second gray value of the second sub-pixel;
wherein the adjustment module is further configured to determine whether the second sub-pixels around the first sub-pixel emit light according to the second gray value.

### Claim 11 (depends on 10)

The display panel of claim 10, wherein the storage module comprises a row storage module, and the adjustment module is further configured to obtain a plurality of second gray values corresponding to the plurality of second sub-pixels of a previous row of the first sub-pixel from the row storage module;
wherein the driver chip further comprises an image processing module, and the adjustment module is further configured to obtain a plurality of second gray values corresponding to the plurality of second sub-pixels of a current row of the first sub-pixel from the image processing module;
wherein the row storage module is configured to sequentially obtain a plurality of second gray values corresponding to a plurality of second sub-pixels of multiple rows from the image processing module.

### Claim 12 (depends on 11)

The display panel of claim 11, wherein the image processing module is configured to acquire an image signal and process the image signal to generate a target image signal to the adjustment module;
wherein the adjustment module is configured to determine the first gray value of the first sub-pixel according to the target image signal and determine whether the first sub-pixel does not emit light according to the first gray value.

### Claim 13 (depends on 10)

The display panel of claim 10, wherein the storage module comprises a row storage module, and the driver chip comprises:
an image processing module, comprising the row storage module and an image enhancement module, wherein the adjustment module is configured to obtain a plurality of second gray values corresponding to the plurality of second pixels of a previous row of the first sub-pixel from the row storage module and to obtain a plurality of second gray values corresponding to the plurality of second pixels of a current row of the first sub-pixel from the image enhancement module;
wherein the row storage module is configured to sequentially obtain a plurality of second gray values corresponding to a plurality of second sub-pixels of multiple rows from the image enhancement module.

### Claim 14 (depends on 13)

The display panel of claim 13, wherein the image processing module is configured to acquire an image signal and utilizes the image enhancement module to process the image signal to generate an enhanced image signal to the adjustment module;
wherein the adjustment module is configured to determine the first gray scale value of the first sub-pixel according to the enhanced image signal and determine whether the first sub-pixel does not emit light according to the first gray value.

### Claim 15 (depends on 8)

The display panel of claim 8, wherein the driver chip further comprises a storage module, and the storage module is configured to store the second gray values of the plurality of second sub-pixels; and the adjustment module is further configured to determine whether the second sub-pixels around the first sub-pixel emits light according to the second gray scale values.

### Claim 16 (depends on 9)

The display panel of claim 9, wherein the driver chip further comprises a storage module, configured to store the second gray value of the second sub-pixel; wherein the adjustment module is configured to determine whether the second sub-pixels around the first sub-pixel emit light according to the second gray values.

### Claim 17 (depends on 7)

The display panel of claim 7, wherein the driver chip further comprises a storage module, configured to store the second gray values of the second sub-pixels; wherein the adjustment module is configured to determine whether the second sub-pixels around the first sub-pixel emit light according to the second gray values.

### Claim 18 (depends on 1)

An electronic device, comprising the display panel as claimed in claim 1.

### Claim 19 (depends on 1)

The display panel of claim 1, wherein the analysis and calculation module is further configured to generate the weight parameters according to an average gray value of the second sub-pixels that emit light.

### Claim 20 (depends on 8)

The display panel of claim 8, wherein the analysis and calculation module is further configured to generate the weight parameters according to an average gray value of the second sub-pixels that emit light.