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Optical plate

An optical plate and transparent layer technology, applied in the field of optical plates, can solve the problems of increasing light energy consumption and loss, reducing light utilization rate, etc., and achieve the effects of reducing light transmission loss, improving light utilization rate, and improving optical uniformity

Inactive Publication Date: 2008-06-11
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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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 layer; when the light propagates between the diffuser plate 13 and the prism sheet 15 and passes through the air barrier layer, the light will easily occur at the interface between the air barrier layer and the diffuser plate 13 and the prism sheet 15. Interface reflection and other effects increase the consumption and loss of light energy, thereby reducing the utilization rate of light

Method used

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Embodiment Construction

[0013] The optical plate will be further described in detail with reference to the accompanying drawings and embodiments.

[0014] see figure 2 and image 3 , the optical plate 30 of the preferred embodiment 1 of the present invention includes a first transparent layer 31, a diffusion layer 32 and a second transparent layer 33 integrally formed, and the diffusion layer 32 is located between the first transparent layer 31 and the second transparent layer 33 . The optical plate 30 is injection molded first to form a first transparent layer 31 through a mold, then injection molded on the first transparent layer 31 to form a diffusion layer 32, and then injection molded on the diffusion layer 32 to form a second transparent layer 33, it can be understood that, The formation order of the first transparent layer 31, the diffusion layer 32, and the second transparent layer 33 can also be appropriately changed, but it is necessary to make the diffusion layer 32 of the optical plate...

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Abstract

The invention discloses an optical plate which comprises a first diaphanotheca, a diffusion layer and a second diaphanotheca all-in-one. The diffusion layer is between the first diaphanotheca and the second diaphanotheca, which comprises translucent resin and diffusion particles diffused in the translucent resin. On the surface of the first diaphanotheca and the second diaphanotheca opposite to the diffusion layer are a plurality of small spherical grooves. The optical plate is characterized in that the optical plate can elevate the utilization rate of the ray.

Description

technical field [0001] The invention relates to an optical plate used in 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 panel of the liquid crystal display device itself does not have luminous characteristics, in order to achieve a good display effect, it is necessary to provide the liquid crystal panel with a light source device, such as a backlight module, whose function is to supply the liquid crystal panel with a surface with sufficient brightness and uniform distribution. light source. [0003] see figure 1 , a schematic cross-sectional view of a backlight module using an existing diffuser plate and a prism sheet. The backlight module 10 includes a reflector 11 , and a plurality of light sources 12 , a diffusion plate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02B1/04G02F1/1335
CPCG02B5/0278G02B5/0215G02B5/0242G02F1/133606G02B5/045
Inventor 许东明章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD