Novel multifunctional optical composite membrane and preparing method thereof

An optical composite film, multi-functional technology, applied in optics, optical components, nonlinear optics, etc., can solve problems such as backlight module overthickness, diaphragm warpage, low assembly efficiency, etc., to improve warpage, improve Stiffness and cost reduction effect

Pending Publication Date: 2018-03-23
CHANGZHOU HUAWEI ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the technical problems in the prior art, such as the backlight module is too thick, the assembly efficiency is low, the film is warped, etc., and to provide a new multifunctional optical composite film

Method used

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  • Novel multifunctional optical composite membrane and preparing method thereof
  • Novel multifunctional optical composite membrane and preparing method thereof
  • Novel multifunctional optical composite membrane and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] as attached figure 1 The structure of the optical composite film shown is: lower layer: diffusion film 101 , middle layer: brightness enhancement film 102 , upper layer: microlens film (abbreviated as microlens film) 103 .

[0029] The diffusion film 101 includes a substrate layer and a light diffusion layer, and the light diffusion layer is placed on the upper surface of the substrate layer; the substrate layer of the diffusion film 101 is a PET substrate with a thickness of 100 μm, and the light diffusion layer is a light diffusion layer. Microbead coated haze 95% coating.

[0030] The brightness enhancement film 102 is a prism film, and the prism film includes a substrate layer and a microprism brightness enhancement structure layer, and the microprism brightness enhancement structure layer of the prism film is arranged on the upper surface of the substrate layer; The prism height of the microprism brightening structural layer of the film 102 is 40 μm, and the angle...

Embodiment 2

[0034] as attached figure 2 The structure of the optical composite film shown is: lower layer: diffusion film 201 , middle layer: double-layer brightness enhancement film stacked layer 202 , upper layer: microlens film (abbreviated as microlens film) 203 .

[0035] The diffusion film 201 includes a substrate layer and a light diffusion layer, and the light diffusion layer is placed on the upper surface of the substrate layer; the substrate layer of the diffusion film 201 is PET with a thickness of 125 μm, and the light diffusion layer is light-curable acrylate glue Apply a haze 50% coating.

[0036] The brightness enhancement film 202 is a prism film, and the prism film includes a substrate layer and a microprism brightness enhancement structure layer, and the microprism brightness enhancement structure layer of the prism film is arranged on the upper surface of the substrate layer; The included angle between the prism structure array direction of the upper brightness enhanc...

Embodiment 3

[0040] as attached image 3 The structure of the composite film shown is: lower layer: brightness enhancement film 301 , middle layer: brightness enhancement film 302 , upper layer: microlens film (abbreviated as microlens film) 303 .

[0041] The brightness enhancement film 301 is a prism film, and the prism film includes a substrate layer, a microprism brightness enhancement structure layer and a back coating layer, and the microprism brightness enhancement structure layer of the prism film is arranged on the upper surface of the substrate layer, The back coat layer of the prism film is arranged on the lower surface of the substrate layer; the prism height of the lower brightness enhancement film 301 is 30 μm, the angle is 90°, and the material of the microprism brightness enhancement structure layer is acrylic resin, which is 250 μm thick. PET substrate, back coating haze 60%.

[0042] The brightness enhancement film 302 is a prism film, and the prism film includes a subst...

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Abstract

The invention belongs to the technical field of liquid crystal display optical modules, and discloses a novel multifunctional optical composite membrane which is composed of a lower layer, a middle layer and an upper layer. The lower layer is a brightening membrane or diffusing membrane, the middle layer is one or two overlapped brightening membranes, and the upper layer is a diffusing membrane ormicro-lens membrane. The lower layer, the middle layer and the upper layer are combined through adhesives. The total thickness of the optical composite membrane can be reduced by 40% or above, and acorresponding backlight module is lighter and thinner; cost is reduced by 10% or above; when the backlight module is assembled, only one-time operation needs to be conducted on the combined optical membrane, and the assembling efficiency is effectively improved; the stiffness of the membrane is effectively improved, the warping property of the membrane can be improved, and the assembling yield isimproved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display optical modules, and in particular relates to a novel multifunctional optical composite film and a preparation method thereof. Background technique [0002] The backlight module plays an important role in the LCD liquid crystal display. The high performance of backlight technology (such as high brightness, low cost, low power consumption, light and thin, etc.) has played a role behind the scenes in the improvement of LCD display technology. The backlight module is divided into direct-type and side-type. The direct-type means that the LED light source is distributed directly under the module and is converted into a surface light source through the diffusion plate. The side-type is that the LED light source is distributed on the side of the module and is converted into a surface light source. In the backlight module, several optical films are placed on top of the diffusion plate (or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1335G02B1/10
CPCG02F1/133504G02F1/133606G02B1/10G02F1/133507
Inventor 颜奇旭路健翟才金
Owner CHANGZHOU HUAWEI ADVANCED MATERIAL
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