Method of adjusting display screen, adjusting device for display screen, display device, and storage medium

Patent metadata

Field	Value
Publication number	US-12159599-B2
Application number	US-202217756468-A
Country	US
Kind code	B2
Filing date	May 18, 2022
Priority date	Apr 18, 2022
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

A method of adjusting a display screen, an adjusting device for a display screen, a display device, and a storage medium are provided. The method includes obtaining brightness information in an abnormal brightness area in response to detecting that the abnormal brightness area is in a current display screen, obtaining a corresponding transmittance cut-off wavelength sequence in an abnormal color area in the abnormal brightness area in response to determining that the abnormal color in the abnormal brightness area is blue, and eliminating the abnormal color area in the display screen by absorbing wavelength energy whose wavelength is less than a predetermined wavelength threshold in the transmittance cut-off wavelength sequence.

First claim

What is claimed is:

1. A method of adjusting a display screen, applied to a display device, the method comprising:
detecting whether an abnormal brightness area is in a current display screen;
obtaining, in response to detecting that the abnormal brightness area is in the current display screen, brightness information in the abnormal brightness area;
determining whether an abnormal color in the abnormal brightness area is blue according to the brightness information;
obtaining, in response to determining that the abnormal color in the abnormal brightness area is blue, a corresponding transmittance cut-off wavelength sequence in an abnormal color area in the abnormal brightness area;
obtaining a transmittance cut-off wavelength sample of the display screen;
generating, by preprocessing the transmittance cut-off wavelength sample, transmittance cut-off wavelength samples in different wavelength ranges;
absorbing energy of the transmittance cut-off wavelength sample in each of the wavelength ranges successively, and recording chromaticity variable information corresponding to the different wavelength ranges after absorbing the energy;
analyzing the chromaticity variable information corresponding to the different wavelength ranges, and generating a relationship between the different wavelength ranges and the corresponding chromaticity variable information; and
eliminating, by absorbing wavelength energy whose wavelength is less than a predetermined wavelength threshold in the transmittance cut-off wavelength sequence, the abnormal color area in the display screen.

2. The method of adjusting the display screen of claim 1 , wherein the chromaticity variable information comprises a first chromaticity variable Δx, and a relationship between the different wavelength ranges and the corresponding first chromaticity variable Δx is:
Y= 0.000000217Δ x 3−0.000263361Δ x 2+0.106768185Δ x− 14.431775362,

wherein Y is a wavelength and Δx is the first chromaticity variable.

3. The method of adjusting the display screen of claim 1 , wherein the chromaticity variable information comprises a second chromaticity variable Δy, and a relationship between the different wavelength ranges and the corresponding second chromaticity variable Δy is:
Y= 0.000000501 Δy 3−0.000604784 Δy 2+0.243591825 Δy− 32.710077027,

wherein Y is a wavelength and Δy is the second chromaticity variable.

4. The method of adjusting the display screen of claim 1 , wherein after absorbing the energy of the transmittance cut-off wavelength sample in each of the wavelength ranges successively, the method of adjusting the display screen further comprises:
recording transmittance variables corresponding to the different wavelength ranges after absorbing the energy; and
analyzing the transmittance variables corresponding to the different wavelength ranges, and generating a relationship between the different wavelength ranges and the corresponding transmittance variables.

5. The method of adjusting the display screen of claim 4 , wherein after generating the relationship between the different wavelength ranges and the corresponding transmittance variables, the method of adjusting the display screen further comprises:
determining the predetermined wavelength threshold based on the relationship between the different wavelength ranges and the corresponding chromaticity variables and the relationship between the different wavelength ranges and the corresponding transmittance variables.

6. An adjusting device for a display screen, comprising:
a detection module configured to detect whether an abnormal brightness area is in a current display screen;
a first acquisition module configured to obtain, in response to detecting that the abnormal brightness area is in the current display screen, brightness information in the abnormal brightness area;
a determination module configured to determine whether an abnormal color in the abnormal brightness area is blue according to the brightness information;
a second acquisition module configured to obtain, in response to determining that the abnormal color in the abnormal brightness area is blue, a corresponding transmittance cut-off wavelength sequence in an abnormal color area in the abnormal brightness area;
a third acquisition module configured to obtain a transmittance cut-off wavelength sample of the display screen;
a preprocessing module configured to generate, by preprocessing the transmittance cut-off wavelength sample, transmittance cut-off wavelength samples in different wavelength ranges;
a first recording module configured to absorb energy of the transmittance cut-off wavelength sample in each of the wavelength ranges successively and record chromaticity variable information corresponding to the different wavelength ranges after absorbing the energy;
a first analysis module configured to analyze the chromaticity variable information corresponding to the different wavelength ranges and generate a relationship between the different wavelength ranges and the corresponding chromaticity variable information; and
an absorbing module configured to absorb wavelength energy whose wavelength is less than a predetermined wavelength threshold in the transmittance cut-off wavelength sequence, so that the abnormal color area in the display screen is eliminated.

7. A display device, comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the following steps when executing the computer program:
detecting whether an abnormal brightness area is in a current display screen;
obtaining, in response to detecting that the abnormal brightness area is in the current display screen, brightness information in the abnormal brightness area;
determining whether an abnormal color in the abnormal brightness area is blue according to the brightness information;
obtaining, in response to determining that the abnormal color in the abnormal brightness area is blue, a corresponding transmittance cut-off wavelength sequence in an abnormal color area in the abnormal brightness area;
obtaining a transmittance cut-off wavelength sample of the display screen;
generating, by preprocessing the transmittance cut-off wavelength sample, transmittance cut-off wavelength samples in different wavelength ranges;
absorbing energy of the transmittance cut-off wavelength sample in each of the wavelength ranges successively, and recording chromaticity variable information corresponding to the different wavelength ranges after absorbing the energy;
analyzing the chromaticity variable information corresponding to the different wavelength ranges, and generating a relationship between the different wavelength ranges and the corresponding chromaticity variable information; and
eliminating, by absorbing wavelength energy whose wavelength is less than a predetermined wavelength threshold in the transmittance cut-off wavelength sequence, the abnormal color area in the display screen.

8. The display device of claim 7 , wherein the chromaticity variable information comprises a first chromaticity variable Δx, and a relationship between the different wavelength ranges and the corresponding first chromaticity variable Δx is:
Y= 0.000000217Δ x 3−0.000263361 Δx 2+0.106768185Δ x− 14.431775362,

wherein Y is a wavelength and Δx is the first chromaticity variable.

9. The display device of claim 7 , wherein the chromaticity variable information comprises a second chromaticity variable Δy, and a relationship between the different wavelength ranges and the corresponding second chromaticity variable Δy is:
Y= 0.000000501Δ y 3−0.000604784 Δy 2+0.243591825 Δy −32.710077027,

wherein Y is a wavelength and Δx is the sec

Assignees

• Shenzhen China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Hai Bo

Classifications

• G09G2320/0693

  Calibration of display systems · CPC title

• G09G2320/0686

  with two or more screen areas displaying information with different brightness or colours · CPC title

• G09G2320/0666

  for control of colour parameters, e.g. colour temperature · CPC title

• G09G2320/0242

  Compensation of deficiencies in the appearance of colours · CPC title

• G09G2320/0233

  Improving the luminance or brightness uniformity across the screen · CPC title