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Optical diaphragm and backlight module applying same

An optical film, backlight module technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems affecting the stability of the prism cylinder, poor adhesion, uneven distribution, etc.

Inactive Publication Date: 2010-01-20
GAMMA OPTICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The problem to be solved by the present invention is to overcome the light concentrating film of the existing optical film, the diffusion particles in the diffusion layer are mixed in the resin, which is easy to have the problems of uneven distribution and falling off, and the substrate itself if Adhesion is not good, and it is easy to affect the stability of the prism column on the surface of the substrate and other defects

Method used

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  • Optical diaphragm and backlight module applying same
  • Optical diaphragm and backlight module applying same
  • Optical diaphragm and backlight module applying same

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Embodiment Construction

[0025] In order to make it easier to understand the structure of the present invention and the effect that can be achieved, the description is as follows in conjunction with the accompanying drawings:

[0026] First, refer to image 3 As shown, the optical film 2 of the present invention is composed of a body 3 and a light concentrating layer 4 .

[0027] The main body 3 is formed by overlapping substrates 31 and 32 of different materials (in the figure, only two layers of substrates are used as an example, but not limited thereto), and the substrates 31 and 32 can be poly Carbonate (Polycar-bonate referred to as PC), polyethylene terephthalate (Polyethylene Terephthalate referred to as PET) or polymethyl methacrylate (Polymethyl Methacrylate referred to as PMMA) and other polymer materials, of which at least one The outer surface of the substrate 32 is the light incident surface 321 of the body 3, and the outer surface of a substrate 31 is the light exit surface 311 of the b...

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Abstract

The invention relates to an optical diaphragm and a backlight module applying the same. The optical diaphragm comprises a body and a light collecting layer; the body is formed by superposing a plurality of substrates, and the substrates of the body can be made of different materials; and the excellent optical performance of the optical diaphragm is achieved by using attributes of the substrates of the different materials.

Description

technical field [0001] The invention relates to an optical film, especially the main body of the optical film is made of overlapping multi-layer substrates, which can simultaneously achieve the effects of diffusion and light concentrating, and can be applied to the optical film structure of a backlight module. Background technique [0002] The light source of the thin film transistor liquid crystal display (TFT-LCD) is provided by the backlight module, and the backlight module must make the provided light source achieve high-quality uniformity and brightness, which is sufficient to obtain good subsequent application effects. [0003] Among them, the backlight module needs to be provided with different numbers of optical films, such optical films include a diffusion film that can make the light source diffuse, and a light concentrating film that can make the light source do light collection, depending on the actual situation. According to the required situation, they can be c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
Inventor 麦建进尹瑞堂王湧锋
Owner GAMMA OPTICAL