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Direct type backlight module

A backlight assembly, direct type technology, applied in optics, nonlinear optics, instruments, etc., can solve the problem of insufficient brightness of light-emitting elements

Active Publication Date: 2006-07-05
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, the main purpose of the present invention is to provide a direct-lit backlight assembly to overcome the defect of insufficient luminance between any two adjacent light-emitting elements (such as cold cathode fluorescent tubes), thereby improving the overall luminance and Uniform performance

Method used

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Examples

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Embodiment Construction

[0047] Figure 7 It is a structural cross-sectional view of the first preferred embodiment of the present invention; wherein, the technical characteristics of the present invention are described by taking the direct-type backlight assembly 100 using a cold cathode fluorescent lamp 120 as a light-emitting element as an example; The direct type backlight assembly 100 includes: a reflector 110 , a plurality of CCFL tubes 120 , a diffusion plate 130 and a plurality of light compensation elements 140 . A plurality of CCFL tubes 120 are arranged in the reflector 110 and arranged in parallel with each other at a proper distance. The diffuser plate 130 is disposed on the reflector 110 and above the CCFL tube 120 . The diffuser plate 130 is a light-transmitting element that can atomize the light, and has a side facing the CCFL 120 The incident surface 131 of the diffusion plate 130 and the exit surface 132 of the cold cathode fluorescent lamp 120 are facing away, so that the light has...

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PUM

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Abstract

The invention is a vertical backlight module, adopting plural light emitting components, making the emitted lights reflected by a reflection shield to a diffusion plate or directly irradiate the diffusion plate so as to provide a plane backlight source; the invention mainly adds a light compensating component between any two adjacent light emitting components to overcome the brightness defect between them and then improve the gradation and uniformity of the plane backlight source.

Description

technical field [0001] The present invention relates to a direct type backlight module (Direct Type Back Light Module), in particular to a method for overcoming the brightness defect between any two adjacent light-emitting elements by adding a light compensation element to improve the brightness of a planar backlight light source. Direct-lit backlight components with high precision and uniformity. Background technique [0002] Generally speaking, a backlight unit (BLU) generally refers to a component that can increase a backlight source of a product, and its typical application is as a backlight source for a flat panel display such as a Liquid Crystal Display (LCD). In terms of the types of light-emitting elements used, there are currently three types: Electron Luminescence (EL), Cold Cathode Fluorescent Lamps (Cold Cathode Fluorescent Lamps, CCFL) and Light Emitting Diodes (LED). Depending on the location of the light source, it can be divided into side-lit and direct-lit....

Claims

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Application Information

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IPC IPC(8): G02F1/1335
Inventor 刘明达郭浩然
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD