Liquid crystal display device

A liquid crystal display device and light source technology, applied in optics, instruments, discharge lamps, etc., can solve the problems of low energy consumption, display devices cannot meet the color saturation at the same time, and achieve low energy consumption, high color saturation, and high brightness Effect

Inactive Publication Date: 2007-06-27
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the liquid crystal display device in the prior art cannot satisfy the requirements of good color saturation and low energy consumption

Method used

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  • Liquid crystal display device
  • Liquid crystal display device

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Embodiment Construction

[0011] The first embodiment of the liquid crystal display device of the present invention is shown in FIG. 1 , the liquid crystal display device 10 includes a liquid crystal display panel 11 and a backlight module 12 stacked with the liquid crystal display panel 11 .

[0012] The backlight module 12 includes a brightness enhancement sheet 13 , a diffusion sheet 14 , a first light guide plate 15 , a second light guide plate 16 , a reflection sheet 17 , a first light source 18 and a second light source 19 . Wherein, the brightness enhancement sheet 13, the diffusion sheet 14, the first light guide plate 15, the second light guide plate 16 and the reflective sheet 17 are stacked, the first light source 18 is arranged adjacent to the first light guide plate 15, and the second light source 19 is disposed adjacent to one side of the second light guide plate 16 .

[0013] The first light guide plate 15 and the first light source 18 are a first light source group. The light guide pla...

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Abstract

The liquid crystal display (LCD) device includes stacked up LCD faceplate and backlight module. The backlight module includes two sets of switchable light source. The two sets of switchable light source are light source set of mixing multiple color lights, and light source set of white light respectively. The two sets of switchable light source can be operated independenly, or in combination. LCD device of using the backlight module can switch to different modes to represent different color ranges. Using the light source set of mixing multiple color lights can obtain better color saturation. Using light source set of white light possesses lower energy consumption. Using both sets of light source can obtain high color saturation and high brightness.

Description

【Technical field】 [0001] The invention relates to a liquid crystal display device. 【Background technique】 [0002] Currently, liquid crystal display panels have been widely used in display screens of mobile communication products such as handheld computers and mobile phones due to the advantages of low power consumption, lightness, small size, and low-voltage drive. However, in addition to the basic requirements such as lightness, thinness, and power saving for the LCD panel of portable devices, with the gradual development of multimedia applications, consumers begin to have more stringent requirements for the color performance of the panel. [0003] In the prior art, better color saturation can be obtained by using red, green, and blue light-emitting diodes as a mixed light source. However, the luminous efficiency of light-emitting diodes has not yet reached the luminance of cold cathode fluorescent tubes (30-60 lumen / Watt), so under the brightness requirements of general...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02F1/1333H01J61/00H01L33/00G02F1/1335
Inventor 许育儒简克伟
Owner INNOCOM TECH SHENZHEN
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