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

Backlight module

A backlight module and light technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of damage, difficult conduction of heat energy of light-emitting diodes, shortened life of light-emitting diodes 106, etc., and achieve the effect of reducing the overall thickness

Inactive Publication Date: 2009-12-30
CHUNGHWA PICTURE TUBES LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is worth noting that since the material of the general circuit board (such as flame retardant 4, FR4) has a relatively high thermal resistance value, the heat energy generated by the light emitting diode 106 is not easily conducted to the outside by the circuit board.
This is likely to cause the temperature in the light box 102 to be too high, and the life of the light-emitting diode 106 is shortened, or even damaged.

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
  • Backlight module
  • Backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 2 It is a schematic cross-sectional view of a backlight module according to an embodiment of the present invention. Please refer to figure 2 , the backlight module 200 of the present invention includes a light box 202 , a transparent substrate 204 and a plurality of light emitting units 206 . Wherein, the light box 202 has an opening 202a. The light emitting unit 206 is disposed on the transparent substrate 204 and located in the light box 202 . In one embodiment, there is a circuit pattern 205 on the transparent substrate 204 . The light emitting units 206 can be electrically connected to each other through the circuit pattern 205 , or can be electrically connected to an external control circuit (not shown) through the circuit pattern 205 . Specifically, the light emitting unit 206 may be a light emitting diode. Depend on figure 2 It can be seen that the light L emitted by the light emitting unit 206 passes through the transparent substrate 204 and exit...

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 light box, a transparent baseplate and a plurality of luminescence units, wherein the light box is provided with an opening; the transparent baseplate is arranged in the light box; and the luminescence units are arranged on the transparent baseplate and positioned between the transparent baseplate and the bottom surface of the light box. Light rays emitted by the luminescence units can pass through the transparent baseplate and come out from the opening; thus, the heat generated by the luminescence units can be effectively and directly transferred to the exterior of the light box.

Description

technical field [0001] The invention relates to a backlight module, and in particular to a backlight module with high heat dissipation efficiency. Background technique [0002] In general liquid crystal displays, since the liquid crystal display panel (Liquid crystal display panel) does not have the function of actively emitting light, a backlight module must be arranged under the liquid crystal display panel to provide a side light source, so that the liquid crystal display panel can achieve the display effect. Purpose. [0003] figure 1 It is a schematic cross-sectional view of an existing backlight module. Please refer to figure 1 , the existing backlight module 100 includes a light box 102 , a circuit board 104 , a plurality of LEDs 106 and a diffusion film 108 . Wherein, both the circuit board 104 and the LED 106 are disposed in the light box 102 , and the LED 106 is disposed on the circuit board 104 . In addition, the diffusion film 108 is disposed above 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): G02F1/13357
Inventor 林子斌李宗阳邹健龙莫启能
Owner CHUNGHWA PICTURE TUBES 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