Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-adapting backlight control method and device

A backlight control and self-adaptive technology, which is applied to instruments, static indicators, etc., can solve problems such as backlight self-adaptive control

Inactive Publication Date: 2010-07-14
ANALOGIX CHINA SEMICON
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an adaptive backlight control method and device, which can solve the problem that the backlight cannot be adaptively controlled in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-adapting backlight control method and device
  • Self-adapting backlight control method and device
  • Self-adapting backlight control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 1 A flow chart of an adaptive backlight control method according to an embodiment of the present invention is shown, including the following steps:

[0050] S102, performing scene change detection on the current frame image according to the brightness component Y mean value Yavg of the current frame image and the backlight gray scale BDG of the current frame image;

[0051] S104, when it is detected that the scene changes, perform inter-frame filtering processing on the backlight gray scale of the multiple frame images behind the current frame image;

[0052] S106. Perform backlight control according to the filtered gray scale of the backlight.

[0053] Here, performing backlight control may include: adjusting the backlight of multiple frames of images after the current frame image according to the filtered backlight grayscale and performing image compensation on the multiple frames of images.

[0054] A preferred implementation manner of adjusting the backligh...

Embodiment 2

[0105] Figure 4 A schematic diagram showing an adaptive backlight control device according to an embodiment of the present invention, including:

[0106] The scene change detection module 402 is used for performing scene change detection on the current frame image according to the brightness component Y mean value Yavg of the current frame image and the backlight grayscale BDG of the above-mentioned current frame image;

[0107] The filtering module 404 is configured to perform inter-frame filtering processing on the backlight gray scales of multiple frames of images after the current frame image when a scene change is detected;

[0108] The backlight control module 406 is configured to perform backlight control according to the filtered gray scale of the backlight.

[0109] The above device further includes: a first statistics module, configured to perform histogram statistics on the current frame image starting from the first low gray level, and determine the first high gr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a self-adapting backlight control method and a device thereof. The method comprises the following steps: detecting scene changes of a current frame image according to the average value Yavg of brightness components Y of the current frame image and the backlight gray scale BDG of the current frame image; when the scene changes are detected, carrying out inter-frame filtering treatment for the backlight gray scale of a multi-frame images behind the current frame image; and performing backlight control according to the backlight gray scale after the filtering treatment. The self-adapting backlight control method of the invention can be used for adjusting the backlight in a self-adapting way according to the image content, thereby achieving the energy-saving purpose.

Description

technical field [0001] The invention relates to the field of image display of liquid crystal displays, in particular to an adaptive backlight control method and device for liquid crystal displays. Background technique [0002] Most LCD (Liquid Crystal Display, liquid crystal display) display products use transmissive LCD to display text and images, because transmissive LCD is through its backlight unit such as CCFL (Cold Cathode fluorescent Lamps, cold cathode fluorescent lamp), LED Emitting Diode, light-emitting diode) to emit light, and the power consumption of the backlight accounts for more than 90% of the power consumption of the entire display product. How to effectively reduce the power consumption of the backlight module is of great significance for the energy saving of the entire display product. However, the current traditional LCD backlight adopts fixed backlight control, that is to say, no matter whether the currently displayed image is bright or dark, the backli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G09G3/34G09G3/36
Inventor 张文超
Owner ANALOGIX CHINA SEMICON