Backlight module and liquid crystal display

A backlight module and liquid crystal display technology, applied in the direction of instruments, optics, light guide, etc., can solve the problems of expansion and contraction deformation, easy damage of materials, high price of light guide plate and optical film, etc., to improve utilization rate, reduce Small thickness, the effect of improving quality

Inactive Publication Date: 2014-08-06
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] like figure 1 The backlight module shown uses a light guide plate and a corresponding large-area optical film. The price of the light guide plate and optical film is high, and its materials are prone to defects such as damage and expansion and contraction deformation, resulting in the failure of the liquid crystal module. Poor display; in addition, when the light is transmitted in the light guide plate and the optical film group, it will be attenuated, thereby reducing the light utilization efficiency of the liquid crystal display. The light path transmitted in the light guide plate and the optical film set

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] figure 2 A schematic structural diagram of the backlight module and the liquid crystal display provided in this embodiment. Such as figure 2 As shown, the liquid crystal display includes a liquid crystal display 2 and a backlight module 1, wherein the liquid crystal display 2 at least includes a TFT glass substrate 201, a liquid crystal layer 202, a CF glass substrate 203 and a second polarizer 204 that are sequentially stacked. The optical module 1 comprises a backplane 101, a reflection sheet 102 positioned on the backplane 101, a glass substrate 103 positioned on the reflection sheet 102 (the TFT glass substrate 201 in the liquid crystal display 2 is the same part) and The backlight 105 is disposed on the side of the glass substrate 103 . Wherein, the side of the glass substrate 103 facing the reflection sheet 102 is provided with an optical network dot structure layer 104 , and the other side of the glass substrate 103 is a light-emitting surface (with an FTF ar...

Embodiment 2

[0036] image 3 A schematic structural diagram of the backlight module and the liquid crystal display provided in this embodiment. Such as image 3 As shown, the difference from Embodiment 1 is that the first polarizer 106 in this embodiment is fixed at a distance from the side of the glass substrate 103 by a fastener 107 . The position only needs to be between the glass substrate 103 and the backlight 105 . The purpose of disposing the first polarizer 106 at a certain distance from the side of the glass substrate 103 is for easy fixing and better stability. The structure of the liquid crystal display 2 of the liquid crystal display and other structures in the backlight module 1 are the same as those in the first embodiment.

Embodiment 3

[0038] Figure 4 A schematic structural diagram of the backlight module and the liquid crystal display provided in this embodiment. Such as Figure 4 As shown, the difference from Embodiment 2 is that an optical film set 108 is also arranged between the first polarizer 106 and the backlight source 105 in this embodiment (in other embodiments, the optical film set 108 is also It may be arranged between the first polarizer 106 and the glass substrate 103). Wherein, the optical film group 108 may be selected from one or more arbitrary combinations of a diffusion film, a prism film and an anti-reflection film. The structure of the liquid crystal display 2 of the liquid crystal display and other structures in the backlight module 1 are the same as those in the second embodiment.

[0039] In this embodiment, the optical film group 108 is arranged between the first polarizer 106 and the backlight source 105, which improves the quality of the light emitted by the backlight source 105...

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 module which comprises a back board, a reflection piece located on the back board, a glass substrate located on the reflection piece and a backlight source arranged on one side of the glass substrate, wherein one side of the glass substrate facing the reflection piece is provided with an optical network point structure layer, the other side of the glass substrate is a light emergence face. A first polarizer is further arranged between the backlight source and the glass substrate, light emitted by the backlight source passes through the first polarizer to form polarized light and enters the glass substrate, and the polarized light is reflected by the optical network point structure layer and then is conducted out of the light emergence face. The backlight module does not use a light guide plate, so that the cost of the backlight module is reduced. The backlight module can further improve the light source utilization rate and product quality. The invention further discloses a liquid crystal display including the backlight module.

Description

technical field [0001] The invention relates to the technical field of liquid crystal displays, in particular to a backlight module and a liquid crystal display including the backlight module. Background technique [0002] Liquid crystal display, or LCD (Liquid Crystal Display), is a flat and ultra-thin display device, which consists of a certain number of color or black and white pixels, placed in front of a light source or a reflector. Liquid crystal displays have low power consumption, high image quality, small size, and light weight, so they are favored by everyone and become the mainstream of displays. [0003] The liquid crystal display includes a liquid crystal display and a backlight module. The liquid crystal display and the backlight module are arranged opposite to each other. The backlight module provides a light source for the liquid crystal display to display images on the liquid crystal display. A liquid crystal display is mainly composed of two transparent su...

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): F21S8/00F21V13/00G02F1/13357F21Y101/02
CPCG02B6/0023G02B6/005G02B6/0055G02F1/133615G02F1/13362F21V9/14G02F1/133514G02F1/133528G02F1/133553G02F1/1368
Inventor 陈仕祥萧宇均阙成文
Owner TCL CHINA STAR OPTOELECTRONICS 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