IP Library › Granted Patent US 12,080,216
Granted Patent B2
US 12,080,216 · App. 17/419,752 · Granted Sep 3, 2024

Control method of display panel and display device

Inventors: Qiqi Lin (Guangdong, CN); Yu Huang (Guangdong, CN)
Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
G09G3/2074G09G3/3607G09G2320/0209G09G2320/0233
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Quick Facts
Patent No.
US 12,080,216
App. No.
17/419,752
Granted
Sep 3, 2024
Kind
B2
Abstract

A control method of a display panel and a display device are provided. In the method, at least one binding-point grayscale value is obtained at first; an initial-state control parameter, an initial-state brightness parameter, and a reference brightness parameter of a to-be-regulated region are determined according to each of the binding-point grayscale value; and a relative compensation brightness parameter of the binding-point grayscale value is determined according to the initial-state control parameter, the initial-state brightness parameter, and the reference brightness parameter of the binding-point grayscale value when a ratio of the initial-state brightness parameter to the reference brightness parameter is not within a preset range.

Claims (63)

1. A control method of a display panel, comprising:

obtaining at least one binding-point grayscale value;

determining an initial-state control parameter, an initial-state brightness parameter, and a reference brightness parameter corresponding to to-be-regulated regions according to each of the binding-point grayscale value;

judging whether a ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to each binding-point grayscale value is within a preset range;

determining a relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameter, and the reference brightness parameter corresponding to the binding-point grayscale value, when the ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to the at least one binding-point grayscale value is not within the preset range;

using 0 as the relative compensation brightness parameter corresponding to the binding-point grayscale value when the ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to the at least one binding-point grayscale value is within the preset range;

obtaining a relative parameter of a hopping region, wherein a plurality of data lines are shared in the hopping region and the to-be-regulated region; and

determining an absolute compensation brightness parameter corresponding to the binding-point grayscale value according to the relative parameter and the relative compensation brightness parameter and on a basis of an absolute parameter.

2. The control method of the display panel as claimed in claim 1 , wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value comprises:

determining the corresponding initial-state control parameter according to the binding-point grayscale value, regulating the to-be-regulated region according to the initial-state control parameter, and obtaining a regulated brightness value of the to-be-regulated region for inclusion in the corresponding initial-state brightness parameter.

3. The control method of the display panel as claimed in claim 2 , wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value further comprises:

regulating a reference region according to the initial-state control parameter, and obtaining a regulated brightness value of the reference region for inclusion in the corresponding reference brightness parameter, wherein a vertical crosstalk phenomenon in the reference region is weaker than a vertical crosstalk phenomenon in the to-be-regulated region.

4. The control method of the display panel as claimed in claim 2 , wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value further comprises:

obtaining a regulated color coordinate of the to-be-regulated region for inclusion in the corresponding initial-state brightness parameter.

5. The control method of the display panel as claimed in claim 2 , wherein determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value comprises:

regulating a control parameter of the to-be-regulated region until a brightness parameter of the to-be-regulated region changes into a corresponding final-state brightness parameter from the initial-state brightness parameter, wherein a ratio of the corresponding final-state brightness parameter to the reference brightness parameter is within the preset range; obtaining a final-state control parameter corresponding to the to-be-regulated region, wherein the final-state control parameter allows the final-state brightness parameter to be in the to-be-regulated region; and

determining the corresponding relative compensation brightness parameter according to the corresponding initial-state control parameter and the corresponding final-state control parameter.

6. The control method of the display panel as claimed in claim 1 , wherein obtaining the at least one binding-point grayscale value comprises:

obtaining at least two binding-point grayscale values,

wherein after determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

determining the relative compensation brightness parameter corresponding to each of the binding-point grayscale values according to the relative compensation brightness parameter corresponding to each of the binding-point grayscale values, and determining a plurality of relative compensation brightness parameters corresponding to a plurality of non-binding-point grayscale values, wherein two of the binding-point grayscale values comprise at least one of the non-binding-point grayscale values.

7. A control method of a display panel, comprising:

obtaining at least one binding-point grayscale value;

determining an initial-state control parameter, an initial-state brightness parameter, and a reference brightness parameter corresponding to to-be-regulated regions according to each of the binding-point grayscale value;

judging whether a ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to each binding-point grayscale value is within a preset range; and

determining a relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameter, and the reference brightness parameter corresponding to the binding-point grayscale value, when the ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to the at least one binding-point grayscale value is not within the preset range;

wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value further comprises:

regulating a reference region according to the initial-state control parameter, and obtaining a regulated brightness value of the reference region for inclusion in the corresponding reference brightness parameter, wherein a vertical crosstalk phenomenon in the reference region is weaker than a vertical crosstalk phenomenon in the to-be-regulated region.

8. The control method of the display panel as claimed in claim 7 , wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value comprises:

determining the corresponding initial-state control parameter according to the binding-point grayscale value, regulating the to-be-regulated region according to the initial-state control parameter, and obtaining a regulated brightness value of the to-be-regulated region for inclusion in the corresponding initial-state brightness parameter.

9. The control method of the display panel as claimed in claim 8 , wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value further comprises:

obtaining a regulated color coordinate of the to-be-regulated region for inclusion in the corresponding initial-state brightness parameter.

10. The control method of the display panel as claimed in claim 8 , wherein determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

regulating a control parameter of the to-be-regulated region until a brightness parameter of the to-be-regulated region changes into a corresponding final-state brightness parameter from the initial-state brightness parameter, wherein a ratio of the corresponding final-state brightness parameter to the reference brightness parameter is within the preset range; obtaining a final-state control parameter corresponding to the to-be-regulated region, wherein the final-state control parameter allows the final-state brightness parameter to be in the to-be-regulated region; and

determining the corresponding relative compensation brightness parameter according to the corresponding initial-state control parameter and the corresponding final-state control parameter.

11. The control method of the display panel as claimed in claim 7 , wherein after judging whether the ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to each binding-point grayscale value is within the preset range, the control method of the display panel comprises:

using 0 as the relative compensation brightness parameter corresponding to the binding-point grayscale value when the ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to the at least one binding-point grayscale value is within the preset range.

12. The control method of the display panel as claimed in claim 7 , wherein obtaining the at least one binding-point grayscale value comprises:

obtaining at least two binding-point grayscale values,

wherein after determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

determining the relative compensation brightness parameter corresponding to each of the binding-point grayscale values according to the relative compensation brightness parameter corresponding to each of the binding-point grayscale values, and determining a plurality of relative compensation brightness parameters corresponding to a plurality of non-binding-point grayscale values, wherein two of the binding-point grayscale values comprise at least one of the non-binding-point grayscale values.

13. The control method of the display panel as claimed in claim 7 , wherein after determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

obtaining a relative parameter of a hopping region, wherein a plurality of data lines are shared in the hopping region and the to-be-regulated region; and

determining an absolute compensation brightness parameter corresponding to the binding-point grayscale value according to the relative parameter and the relative compensation brightness parameter and on a basis of an absolute parameter.

14. A display device, comprising a controller and a storage appliance, wherein the controller is configured to execute various instructions stored in the storage appliance to realize a control method of a display panel, wherein the control method of the display panel comprises:

obtaining at least one binding-point grayscale value;

determining an initial-state control parameter, an initial-state brightness parameter, and a reference brightness parameter corresponding to to-be-regulated regions according to each of the binding-point grayscale value;

judging whether a ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to each binding-point grayscale value is within a preset range; and

determining a relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameter, and the reference brightness parameter corresponding to the binding-point grayscale value, when the ratio of the initial-state brightness parameter to the reference brightness parameter corresponding to the at least one binding-point grayscale value is not within the preset range;

wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value further comprises:

regulating a reference region according to the initial-state control parameter, and obtaining a regulated brightness value of the reference region for inclusion in the corresponding reference brightness parameter, wherein a vertical crosstalk phenomenon in the reference region is weaker than a vertical crosstalk phenomenon in the to-be-regulated region.

15. The display device as claimed in claim 14 , wherein determining the corresponding initial-state brightness parameter according to each binding-point grayscale value comprises:

determining the corresponding initial-state control parameter according to the binding-point grayscale value, regulating the to-be-regulated region according to the initial-state control parameter, and obtaining a regulated brightness value of the to-be-regulated region for inclusion in the corresponding initial-state brightness parameter.

16. The display device as claimed in claim 15 , wherein determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

regulating a control parameter of the to-be-regulated region until a brightness parameter of the to-be-regulated region changes into a corresponding final-state brightness parameter from the initial-state brightness parameter, wherein a ratio of the corresponding final-state brightness parameter to the reference brightness parameter is within the preset range; obtaining a final-state control parameter corresponding to the to-be-regulated region, wherein the final-state control parameter allows the final-state brightness parameter to be in the to-be-regulated region; and

determining the corresponding relative compensation brightness parameter according to the corresponding initial-state control parameter and the corresponding final-state control parameter.

17. The display device as claimed in claim 14 , wherein obtaining the at least one binding-point grayscale value comprises:

obtaining at least two binding-point grayscale values,

wherein after determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

determining the relative compensation brightness parameter corresponding to each of the binding-point grayscale values according to the relative compensation brightness parameter corresponding to each of the binding-point grayscale values, and determining a plurality of relative compensation brightness parameters corresponding to a plurality of non-binding-point grayscale values, wherein two of the binding-point grayscale values comprise at least one of the non-binding-point grayscale values.

18. The display device as claimed in claim 14 , wherein after determining the relative compensation brightness parameter corresponding to the binding-point grayscale value according to the initial-state control parameter, the initial-state brightness parameters, and the reference brightness parameter corresponding to each binding-point grayscale value, the control method of the display panel comprises:

obtaining a relative parameter of a hopping region, wherein a plurality of data lines are shared in the hopping region and the to-be-regulated region; and

determining an absolute compensation brightness parameter corresponding to the binding-point grayscale value according to the relative parameter and the relative compensation brightness parameter and on a basis of an absolute parameter.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2021
From: LIN, QIQI; HUANG, YU
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 056832/0701 →
Priority Claims (1)
CN 202110598485.9 · May 31, 2021 · national
Continuity (1)
Related Publication 20240013698A1 · Jan 11, 2024