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Power chip type LED light source for LCD backlight module

A technology of LED light source and backlight module, applied in the direction of light source, point light source, fixed light source, etc., can solve the problems of unsuitable large-size backlight source, low light utilization efficiency, low color saturation, etc., and achieves easy LED power control. , reduce the volume, good toughness effect

Inactive Publication Date: 2009-09-02
NANJING HANDSON SCI & TECH CORP
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of traditional LCD backlights using CCFLs, such as mercury content, short life, low color saturation, low light utilization efficiency, high-voltage drive, and unsuitable for making large-size backlights, etc., and provide a structurally reasonable Stable, excellent shock resistance, good color reproduction, good heat dissipation, no afterimage, power saving, long service life and environmentally friendly high-power chip LED light source to improve the color expression of liquid crystal display, reduce costs, and improve LCD backlight performance

Method used

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  • Power chip type LED light source for LCD backlight module
  • Power chip type LED light source for LCD backlight module

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Embodiment Construction

[0030] As an LCD backlight application, LED has the characteristics of long life, high luminous efficiency, no interference and high cost performance. It has been widely used in electronic watches, mobile phones, electronic calculators and displays. With the miniaturization of portable electronic products, LCD backlight modules Group power chip LED light sources have more advantages, so backlight manufacturing technology will develop towards thinner, low power consumption and uniformity.

[0031] At present, the small-size backlights on the market mainly adopt the side-light technology, mainly because the side-light needs to use the light guide plate to convert the point light source into a surface light source, which consumes a lot of energy and is not suitable for large-sized TV panels, and uses side-light In fact, the technical ability is not high; the LED backlight of the preferred embodiment of the present invention adopts the direct light source technology, and the direct...

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Abstract

The invention provides a power chip type LED light source for an LCD backlight module, which is formed by a plurality of grid-shaped semiconductors, and at least two LED semiconductors are arranged in each grid. The LED light source comprises a printed circuit board (PCB), an LED chip arranged at the upper side of the PCB and a light-emitting lens arranged at the light-emitting surface of the LED chip; a radiator is arranged under the PCB, PCB leads are distributed around the radiator, and the radiator is assembled with electrical connection structure and a corresponding control circuit; and the radiator and the PCB are fixed into a whole by a mechanical fastening part and the same extended light source. The power chip type LED light source has stable and shockproof structure, good color rendition and heat dissipation effect, no incomplete shadow, electricity conservation and long service life, and can remarkably improve the color expressive force of liquid crystal display.

Description

technical field [0001] The invention relates to an illuminating light source for an LCD backlight module, in particular to a chip-type LED light source using a power-type, high-brightness light-emitting diode as an illuminating light source, and belongs to the technical field of semiconductor lighting. Background technique [0002] With the continuous advancement of microelectronics technology, the LED industry, like other electronic components, is developing in the direction of multi-variety, high-quality, chip, miniaturization, power type, and modularization. [0003] The issue of sustainable development is a major issue facing mankind in this century, and the issues of environmental pollution and energy conservation have received great attention from governments of all countries. The traditional LCD backlight using CCFL can no longer meet the display needs. The main problems include: mercury in the light source, short life, low color saturation, low light utilization effi...

Claims

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Application Information

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IPC IPC(8): G02F1/13357H05K1/18F21V19/00F21V29/00F21V23/00F21Y101/02F21V29/508F21Y115/10
Inventor 孙建国刘乃涛
Owner NANJING HANDSON SCI & TECH CORP
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