Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Liquid crystal display device and backlight control method thereof

A liquid crystal display device and backlight control technology, which is applied to static indicators, instruments, etc., can solve problems such as reducing backlight power consumption, and achieve the effect of reducing backlight power consumption.

Active Publication Date: 2015-11-11
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, increasing the grayscale brightness of the image by 30% makes the image brighter, and reducing the backlight brightness of the LCD screen by 30% makes the image darker, so that the brightness of the image before and after processing can be kept basically the same, but the 30% backlight power consumption

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
  • Liquid crystal display device and backlight control method thereof
  • Liquid crystal display device and backlight control method thereof
  • Liquid crystal display device and backlight control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some examples of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0018] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related structures and / or processing steps are omitted. Other details not relevant to the invention.

[0019] This embodiment provides a liquid crystal display device, in which a new backlight control method is adopted, whi...

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 discloses a backlight control method for liquid crystal display devices. The method comprises the following steps: a brightness control unit receives an image signal, increases the gray-scale brightness of the image signal according to a first proportion, generates a corresponding driving voltage through control, and inputs the driving voltage to a backlight module to reduce the backlight brightness according to the first proportion; and the brightness control unit further receives a frame control time sequence signal and / or line control time sequence signal, and the brightness control unit stops outputting the driving voltage to the backlight module within a first blanking time and / or a second blanking time, wherein the first blanking time refers to the interval time between the end of a nth frame of image signals and the start of a (n+1)th frame of image signals, the second blanking time refers to the interval time between the end of a mth line of signals and the start of a (m+1)th line of signals, and m and n are integers greater than 1. The invention further discloses a liquid crystal display device adopting the backlight control method.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display device and a backlight control method thereof. Background technique [0002] Among the various mobile phones and flat-panel display devices popular in today's society, the part with the largest power consumption is the backlight part, and the trend of thinner and lighter mobile phones and flat-panel display devices determines that the variability of the size and capacity of the battery is extremely limited. In order to solve the problem of limited battery capacity and want to reduce power consumption, Content Adaptive Brightness Control (CABC) technology is usually used at present. CABC technology is a backlight power saving mainly used for Liquid Crystal Display (LCD). technology. [0003] Specifically, the CABC technology can adjust the relationship between the grayscale brightness of the image and the brightness of the screen backlight according to t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
Inventor 邢振周左清成谭小平
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com