Optical plate

A technology of optical plates and transparent layers, which is applied in the field of optical plates, can solve the problems of increased light energy consumption and loss, and reduced light utilization, and achieve the effects of reduced light transmission loss, improved light utilization, and reduced interface loss

Inactive Publication Date: 2008-06-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
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Problems solved by technology

[0004] However, in the prior art, the diffusion plate 13 and the prism sheet 15 are prepared separately, which makes the diffusion plate 13 and the prism sheet 15 independent of each other. During use, although the diffusion plate 13 and the prism sheet 15 can be in close contact, there is still a gap between the diffusion plate 13 and the prism sheet 15. There will be a fine air barrier

Method used

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Example Embodiment

[0015] The optical plate will be further described in detail below in conjunction with the drawings and embodiments.

[0016] See figure 2 The optical plate 20 includes a first transparent layer 21, a diffusion layer 22, and a second transparent layer 23 that are integrally formed. The diffusion layer 22 is located between the first transparent layer 21 and the second transparent layer 23. The outer surface of the first transparent layer 21 opposite to the diffusion layer 22 has a plurality of V-shaped protrusions 211, and the outer surface of the second transparent layer 23 opposite to the diffusion layer 22 has a plurality of truncated truncated grooves 231. See also image 3 The diffusion layer 22 includes a transparent resin 221 and diffusion particles 222 dispersed in the transparent resin 221. In addition, the integrally formed first transparent layer 21, the diffusion layer 22 and the second transparent layer 23 can be achieved by injection molding; the thickness of the di...

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Abstract

The invention discloses an optic plate, comprising a first transparent layer, a diffusion layer and a second transparent layer which are formed integrally, wherein the diffusion layer is positioned between the first transparent layer and the second transparent layer; the diffusion layer contains transparent resin and diffusing particles dispersed in the transparent resin; the external surface of the first transparent layer opposite to the diffusion layer is provided with a plurality of V-shaped bulges; the external surface of the second transparent layer opposite to the diffusion layer is provided with a plurality of cone shaped groove. The optic plate has the advantage of improving the utilization rate of light rays.

Description

technical field [0001] The invention relates to an optical plate for a backlight module, in particular to a composite optical plate. Background technique [0002] Liquid crystal display devices are widely used in electronic products such as personal digital assistants, notebook computers, digital cameras, mobile phones, and LCD TVs. However, since the liquid crystal display device itself cannot emit light, it needs a backlight module to produce a display function. [0003] See figure 1 , a schematic cross-sectional view of a backlight module using an existing optical plate. The backlight module 10 includes a reflector 11 , and above the reflector 11 sequentially includes a plurality of light sources 12 , a diffusion plate 13 and a transparent prism sheet 15 . Among them, the diffusion plate 13 generally contains methyl methacrylate fine particles, and the methyl methacrylate fine particles serve as diffusing particles for diffusing light. The prism sheet 15 has a V-shape...

Claims

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Application Information

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IPC IPC(8): G02B5/02G02B1/04G02F1/1335
CPCG02F1/133504
Inventor 许东明章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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