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

Side entry type backlight module and display device

A side-entry backlight and module technology, which is applied in the field of side-entry backlight modules and display devices, can solve problems such as light leakage and waste of light effect, and achieve the effect of improving light efficiency and reducing light leakage

Active Publication Date: 2017-12-29
BOE TECH GRP CO LTD +1
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, part of the light emitted by the light source fails to enter the light guide plate, that is, there is a phenomenon of light leakage, resulting in a waste of light effect

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
  • Side entry type backlight module and display device
  • Side entry type backlight module and display device
  • Side entry type backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0032] see figure 1 , in the related art, the side-type backlight module 100 includes a plastic frame 11 , a back plate 12 , an LED light bar 13 , a light guide plate 14 and an optical film 15 . Wherein, the LED light bar 13 is fixed on the back plate 12 with heat-conducting adhesive. The LED light bar 13 includes a printed circuit board 131 and an LED light 132 disposed on the printed circuit...

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 side entry type backlight module and a display device; the side entry type backlight module comprises a back plate, a light guide plate and a light bar; the light guide plate is arranged on the back plate; the light bar comprises a printed circuit board and a lighting piece arranged on the printed circuit board; the side entry type backlight module further comprises a light leakage preventing component; the light leakage preventing component is arranged on the back plate, located between the light bar and the light guide plate, and extended along the width direction of the light guide plate; the light leakage preventing component comprises a groove, and the groove opening of the groove is faced to the light bar; the lighting piece is at least partially held in the groove. According to the embodiment of the invention, the entry ratio of the light emitted by the lighting piece in the light guide plate is increased through changing the light propagation direction, thus the leaked light is reduced and the light efficiency is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an edge-type backlight module and a display device. Background technique [0002] The backlight module is an important part of the liquid crystal display, and the backlight module is used to provide sufficient and uniform surface light source for the liquid crystal display. A common backlight module mainly includes a plastic frame, a backplane, a light source, a light guide plate, and an optical film. Among them, the backplane, light source, light guide plate and optical film are located in the plastic frame. Usually, the backlight module is divided into side-type backlight module and direct-type backlight module, wherein the side-type backlight module generally uses a light bar located on the side of the plastic frame as a light source. The light emitting surface of the light source faces the light incident surface of the light guide plate, and the light emitted by the light ...

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): G02F1/13357G02B6/00
CPCG02F1/133615G02B6/0031G02B6/0055G02F1/133603G02F1/133605G02B6/0046
Inventor 孙彦军
Owner BOE TECH GRP 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