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

Backlight module and liquid crystal display device

A technology for a liquid crystal display device and a backlight module, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve the problems of low coupling efficiency of liquid crystal display devices, etc., so as to solve the problem of low coupling efficiency and improve coupling efficiency. The effect of light efficiency

Inactive Publication Date: 2012-07-18
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a backlight module and a liquid crystal display device that improve light-coupling efficiency by changing the shape of the light-emitting surface of a light source, so as to solve the problem of low light-coupling efficiency of the backlight module and liquid crystal display device in the prior art. technical issues

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 module and liquid crystal display device
  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0023] In the figures, structurally similar units are denoted by the same reference numerals.

[0024] Please refer to figure 2 , figure 2 It is a structural schematic diagram of a preferred embodiment of the backlight module of the present invention. In this embodiment, the backlight module 200 of the present invention is a side-facing backlight module with bottom light incident. The backlight module 200 includes a light guide plate 201 , a base ...

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 relates to a backlight module and a liquid crystal display device. The backlight module comprises a light guide plate, a base arranged at the top or bottom of a light incident side of the light guide plate, a light source arranged on the base and a mirror reflection sheet used for reflecting light, which is emitted from the light source, to the light incident side of the light guide plate, wherein a preset angle which is less than 90 degrees is reserved between a light emergent side of the light source and the light incident side of the light guide plate. The backlight module and the liquid crystal display device, provided by the invention, have the advantages that the optical coupling efficiency of the backlight module is improved through change in the shape of the light emergent side of the light source and the technical problem that the traditional backlight module and liquid crystal display device which are in a bottom light incident mode have low optical coupling efficiency is solved.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a backlight module and a liquid crystal display device capable of improving light coupling efficiency. Background technique [0002] Liquid Crystal Displays (LCDs) have been widely used in various electronic products. Most of the LCDs are backlight LCDs, which include a liquid crystal display panel and a backlight module. The backlight module can be divided into side-light type and direct-light type according to the incident position of the light source, so as to provide backlight to the liquid crystal display panel. [0003] Such as figure 1 as shown, figure 1 It is a schematic diagram of the structure of the existing side-facing backlight module with bottom surface receiving light, wherein 101 is a light guide plate, 102 is a light source, and 103 is a specular reflection sheet. The energy of the light emitted by the light source 102 in the figure is concentrated directl...

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): F21S8/00F21V8/00F21V7/22G02F1/13357F21Y101/02
CPCF21S8/00G02B6/00G02B6/0031G02B6/0073
Inventor 黄建发胡哲彰
Owner TCL 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