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Diffusing sheet, back light module unit and lcd device

A technology of backlight module and diffuser, which is applied in the direction of optics, nonlinear optics, diffuser elements, etc., can solve the problem of low forward light intensity of the diffuser, and achieve the effect of improving display brightness and increasing forward light intensity

Inactive Publication Date: 2009-05-06
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to solve the problem of low forward light intensity of the prior art diffuser, it is necessary to provide a diffuser with higher forward light intensity

Method used

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  • Diffusing sheet, back light module unit and lcd device
  • Diffusing sheet, back light module unit and lcd device
  • Diffusing sheet, back light module unit and lcd device

Examples

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Embodiment Construction

[0028] see Figure 5 and Figure 6 , Figure 5 It is an exploded perspective view of the first embodiment of the liquid crystal display device of the present invention, Figure 6 is a schematic side view of the diffusion sheet 26 . The liquid crystal display device 2 includes a liquid crystal display panel 21 and a backlight module 22 adjacent to the liquid crystal display panel 21 . The backlight module 22 provides planar light for the liquid crystal display panel 21 , and is an edge-lit backlight module.

[0029] The backlight module 22 includes a light guide plate 23 , a reflection sheet 24 , a light source 25 and a diffusion sheet 26 . The light guide plate 23 includes a light emitting surface 232 , a bottom surface 233 opposite to the light emitting surface 232 , and a light incident surface 231 intersecting the bottom surface 233 and the light emitting surface 232 . The light source 25 is disposed adjacent to the light incident surface 231 of the light guide plate 2...

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Abstract

The invention relates to a diffusing piece, a back light module and a liquid crystal display device. The diffusing piece comprises a diffusing layer which comprises a basal material and optical diffusing particles dispersed in the basal material, and the ratio of the refractive rate of the optical diffusing particles and the refractive rate of the basal material is greater than or equal to 1.2.

Description

technical field [0001] The invention relates to a diffusion sheet, a backlight module and a liquid crystal display device. Background technique [0002] A liquid crystal display device generally includes a liquid crystal display panel and a backlight module for providing planar light to the liquid crystal display panel. Among them, the diffusion sheet is an important component in the backlight module, which is used to uniformly diffuse and emit the light beam emitted from the light source, so as to achieve the purpose of uniform brightness of the liquid crystal display device. [0003] see figure 1 and figure 2 , figure 1 It is a three-dimensional exploded view of a prior art liquid crystal display device, figure 2 yes figure 1 Schematic side view of the diffuser shown. The liquid crystal display device 1 includes a liquid crystal display panel 11 and a backlight module 12 arranged adjacently. Wherein, the backlight module 12 provides planar light for the liquid cry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02F1/13357G02F1/1335
Inventor 吴志笙郑嘉雄许育儒
Owner INNOCOM TECH SHENZHEN
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