Display device and control method thereof

Patent metadata

Field	Value
Publication number	US-10403231-B2
Application number	US-201715580111-A
Country	US
Kind code	B2
Filing date	Sep 4, 2017
Priority date	Jul 25, 2017
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

This application provides a display device and a control method thereof. The control method includes the following steps: obtaining, by using an image sensor module, a target image; analyzing, by using a pupil computing module, first data of the target image; and controlling, by using a processing module according to the obtained first data of the target image, a light emitting module to adjust luminance of a display panel.

First claim

What is claimed is:

1. A control method of a display device, comprising steps of:
obtaining, by using an image sensor module, a target image;
obtaining, by using a pupil computing module, first data of the target image; and
controlling, by using a processing module according to the obtained first data of the target image, a light emitting module to control luminance of a display panel,
wherein a step of the controlling, by using a processing module according to the obtained first data of the target image and a light emitting module to control luminance of a display panel, further comprises:
inputting, by using the processing module, the first data to an algorithm logic, to compute a luminance setting parameter value, and control the luminance of the display panel according to the luminance setting parameter value 1
wherein the algorithm logic comprises a logic relationship among values of the first data, an amount of light incident to the pupils and luminance
wherein the algorithm logic is L=((R/R 0 ){circumflex over ( )}2)*L 0 , wherein L is the amount of light incident to the pupils, L 0 is the luminance of a white screen as an initial system value, R and R 0 is included in the first data,
wherein R is a diameters of the pupil, R 0 is a diameter of the pupil under luminance L 0 ,
wherein when the first data computed by the pupil computing module is less than a specified value, generating a maintenance instruction; and
controlling, by using the processing module according to the maintenance instruction, the light emitting module to maintain the luminance of the display panel.

2. The control method of a display device according to claim 1 , wherein a step of the controlling, by using a processing module according to the obtained first data of the target image, a light emitting module to control luminance of a display panel further comprises:
finding, by using the processing module, a luminance value corresponding to the first data according to a luminance correspondence table, and controlling the luminance of the display panel according to the luminance value.

3. The control method of a display device according to claim 1 , further comprising:
when the first data computed by the pupil computing module is not less than a specified value and increases gradually, generating a maintenance instruction.

4. The control method of a display device according to claim 3 , further comprising:
controlling, by using the processing module according to the first instruction, the light emitting module to decrease the luminance of the display panel.

5. The control method of a display device according to claim 1 , further comprising:
when the first data computed by the pupil computing module is not less than a specified value and decreases gradually, generating a second instruction.

6. The control method of a display device according to claim 5 , further comprising:
controlling, by using the processing module according to the second instruction, the light emitting module to increase the luminance of the display panel.

Assignees

• Hkc Corp Ltd
• Chongqing Hkc Optoelectronics Tech Co Limited
• Hkc Corp Limitied
• Chongqing Hkc Optoelectronics Tech Co Ltd

Inventors

• Lee Chia-Hang

Classifications

• G09G2354/00

  Aspects of interface with display user · CPC title

• G09G2320/08

  Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal · CPC title

• G09G5/10 Primary

  Intensity circuits · CPC title

• G09G2320/0626

  for control of overall brightness · CPC title

• G06K9/00604

  Physics · mapped topic