Backlight module and LCD device using the same

A technology of backlight module and liquid crystal display module, applied in the direction of lighting devices, lighting auxiliary devices, lighting device components, etc., can solve the problems of uneven light color, increase the thickness of backlight module, etc., achieve uniform light color, shorten light mixing Distance, reducing the effect of uneven light color

Inactive Publication Date: 2009-07-08
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the spectrum of LEDs has a characteristic of a single high peak, when using LEDs of different monochromatic colors to mix light, it is easy to produce color mura after the light is emitted.
In addition, when mixing light, a specific mixing distance is required to uniformly mix light, thus increasing the thickness of the backlight module

Method used

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  • Backlight module and LCD device using the same
  • Backlight module and LCD device using the same
  • Backlight module and LCD device using the same

Examples

Experimental program
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Embodiment Construction

[0040] Please refer to figure 1 and figure 2 , figure 1 A schematic cross-sectional view illustrating a backlight module and a liquid crystal display module according to a first embodiment of the present invention, figure 2 It is a schematic top view showing the backlight module according to the first embodiment of the present invention without the light uniform module and the optical film set. The backlight module 100 of this embodiment is preferably a direct-type backlight module, which is disposed below the liquid crystal display module 200 , thereby forming a liquid crystal display (Liquid Crystal Display; LCD). The backlight module 100 includes a casing 110 , a plurality of light sources 120 , a light uniform module 130 and an optical film set 140 . The casing 110 is used to carry the light source 120 , the light homogenizing module 130 and the optical film set 140 . These light sources 120 are used to emit at least two different colors of colored light, and the uni...

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Abstract

The invention discloses a backlight module and a liquid crystal display device applying the backlight module. The backlight module at least comprises a plurality of light sources and a light homogenizing module. The light homogenizing module is arranged on the light sources, wherein the light homogenizing module at least comprises a photospot lens sheet and an astigmatism structural layer. The photospot lens sheet is used for congregating the light sources; and the astigmatism structural layer is used for radiating rays. The backlight module can be applied to the liquid crystal display device. The backlight module and the liquid crystal display device applying the backlight module can evenly mix light and emit light so as to emit light with single and even light color and reduce the situation of uneven light color. In addition, as the light can be fully utilized, the setting number of the light sources can be reduced to reduce the whole cost. Moreover, the homogenizing module can evenly carry out light mixing and spectrum radiation so as to shorten the light mixing distance and reduce the thickness of the backlight module.

Description

technical field [0001] The invention relates to a backlight module and a liquid crystal display device using the same, and in particular to a backlight module for uniform light emission and a liquid crystal display device using the same. Background technique [0002] As the information and communication industries continue to innovate, the liquid crystal display (Liquid Crystal Display; LCD) market is booming. Liquid crystal displays have the advantages of high image quality, small size, light weight, low driving voltage, and low power consumption, so they are widely used in personal digital assistants (Personal Digital Assistant; PDA), mobile phones, camcorders, notebooks, etc. Consumer communication or electronic products such as computers, desktop monitors, car monitors, and projection TVs. Coupled with the rapid development of integrated circuit (Integrated Circuit; IC) industry and liquid crystal display manufacturing technology, these consumer communication or electro...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02F1/133F21V5/04F21V21/00F21Y101/00
Inventor陈春诚
OwnerINNOLUX CORP