Method and device for lowering display picture brightness, and display device

A technology for displaying pictures and brightness, applied to its device and display device, a method of reducing the brightness of the display picture, can solve the problems of reducing the brightness of the display picture, reducing the flexibility of the brightness of the display picture, etc., to achieve the effect of excellent flexibility

Active Publication Date: 2018-12-07
BOE TECH GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method for reducing the brightness of a display screen, its device, and a display device to solve the problem of how to reduce the brightness of a display screen without affecting the contrast of the display screen in the prior art, and improve the efficiency of reducing the brightness of the display screen. question of flexibility

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  • Method and device for lowering display picture brightness, and display device
  • Method and device for lowering display picture brightness, and display device
  • Method and device for lowering display picture brightness, and display device

Examples

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Embodiment 1

[0091] Embodiment 1: Take the first frame to the third frame as an example, and combine Figure 4 A flowchart of the method shown, and Figure 5 The interactive flow chart shown; where, F1 represents the first frame, L1 represents the display time in the first frame, V1 represents the non-display time in the first frame, F2 represents the second frame, and L2 represents the display in the second frame V2 represents the non-display time in the second frame, F2' represents the second frame after brightness adjustment, F3 represents the third frame, F3' represents the third frame after brightness adjustment, F3" represents the time after reducing the brightness of the display screen third frame.

[0092] S401. Determine the brightness histogram of the first frame display screen;

[0093] S402. Determine the brightness equalization histogram and dynamic range expansion parameters of the first display frame according to the brightness histogram of the first display frame;

[009...

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Abstract

The invention discloses a method and a device for lowering display picture brightness, and a display device. The method comprises the steps of: firstly, adjusting brightness of pixels in a current frame display picture according to a determined grayscale mapping table corresponding to a previous frame display picture, so that the bright parts are brighter, the dark parts are darker, and a contrastratio of the current frame display picture is increased; secondly, determining a brightness lowering coefficient according to a determined brightness value; and finally, lowering brightness of pixelsin a next frame display picture according to the brightness lowering coefficient. Therefore, the method is implemented on the basis of increasing the contrast ratio of the display picture, and can achieve the effect of maximally lowering influence on the contrast ratio of the display picture while lowering the brightness of the pixels in the next frame display picture; meanwhile, the method lowers the brightness of the next frame display picture according to the brightness condition of the current frame display picture, namely, adjusting the brightness of the pixels in each frame display picture self-adaptively, and the method has excellent flexibility.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for reducing the brightness of a display screen, a device thereof and a display device. Background technique [0002] Organic light emitting diode (Organic Light Emitting Display, OLED) display, because of its fast response, wide color gamut, large viewing angle, high brightness, and light weight, has attracted much attention and has been widely used in the display field. Especially in the field of virtual technology (Virtual Reality, VR), OLED displays are usually used as the screens of VR devices; at the same time, with the development of VR technology, the requirements for OLED displays are getting higher and higher, for example, the resolution of OLED displays The rate requirements range from high definition (High Definition, HD) to full high definition (Full High Definition, FHD), and then to quadruple high definition (Quad High Definition, QHD), and the requiremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10
CPCG09G5/10G09G2320/0626G09G3/20G09G3/3208G09G2330/021G09G2340/14G09G2360/16G09G3/2007G09G2320/066G09G2340/16
Inventor 孙高明毕育欣赖政德杨全
Owner BOE TECH GRP CO LTD
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