Backlight control method and apparatus, and liquid crystal display apparatus

A liquid crystal display device and backlight control technology, applied in static indicators, instruments, etc., can solve problems such as the inability to effectively improve liquid crystal display screen smearing

Active Publication Date: 2016-12-07
HISENSE VISUAL TECH CO LTD
View PDF8 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a backlight control method, device, and liquid crystal display device

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
  • Backlight control method and apparatus, and liquid crystal display apparatus
  • Backlight control method and apparatus, and liquid crystal display apparatus
  • Backlight control method and apparatus, and liquid crystal display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] In the embodiment of the present invention, through the backlight control scheme, a multi-partition control system using backlight scanning for the image frame forms a scanning black insertion, and when driving and scanning multiple rows of pixels corresponding to each backlight partition, the black insertion time is minimized. Distributed to the time of driving scan, and after the complete drive scan of multiple rows of pixels is...

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 and apparatus, and a liquid crystal display apparatus. The main content of the method comprises the following steps: from the time when it is monitored that a first row of pixels in an N-th row image subarea of a current image frame starts driving scanning, switching off a backlight lamp of a backlight subarea for a time length of t, wherein t is scanning black frame insertion time; after the backlight lamp of the backlight subarea is switched off for the time length of t, switching on the backlight lamp of the backlight subarea for a preset time length, and enabling backlight brightness of the current backlight subarea to satisfy needed brightness; and after the backlight lamp of the backlight subarea is switched on for the preset time length, setting the backlight lamp of the backlight subarea to be closed. In such a way, a tailing phenomenon generated due to a visual persistence effect is effectively improved, at the same time, it is ensured that the backlight brightness of each backlight subarea is the same, the brightness uniformity of the backlight subarea is improved, and the display quality of a liquid crystal display apparatus is effectively improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a backlight control method, device and liquid crystal display device. Background technique [0002] With the rapid development of the liquid crystal display industry, the pursuit of the display effect of liquid crystal display is increasing day by day, especially whether the high-speed motion picture can be displayed clearly and smoothly is the focus of most consumers. [0003] However, in the current liquid crystal display, there is generally a tailing phenomenon, and the tailing phenomenon seriously affects the clearness and smoothness of the displayed picture. The reason for the smearing phenomenon is determined by the response time characteristics of liquid crystals and the persistence of vision of the human eye. [0004] As shown in Figure 1(a), it is a schematic diagram of the response time characteristics of liquid crystals: due to the characteristics of th...

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): G09G3/34
Inventor 黄顺明张玉欣曹建伟刘卫东乔明胜
Owner HISENSE VISUAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap