A multifunctional composite optical film

An optical film and multi-functional technology, applied in the optical field, can solve the problems of a large number of optical films, which are not conducive to the thinning of display devices, and achieve the effect of reducing the number of use and the overall thickness and weight.

Active Publication Date: 2019-08-09
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the large number of optical films used in the existing backlight module, which is not conducive to the thinning of display devices, the present invention provides a multifunctional composite optical film. The present invention adopts a two-dimensional concentrating microprism structure and a diffusion structure integrated into On the multifunctional composite optical film, only one piece of the multifunctional composite optical film can be used to achieve the light collection and uniformity of the existing two brightness enhancement films and one diffusion film.

Method used

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  • A multifunctional composite optical film
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Experimental program
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Effect test

Embodiment 1

[0063] Please refer to image 3 As shown, the three-dimensional schematic view of the multifunctional composite optical film provided by the present invention includes a substrate layer 10 , a diffusion layer 11 , a first light-condensing micro-prism structure layer 12 , and a second light-concentrating micro-prism structure layer 13 . The substrate layer 10 has a light incident surface 101 and a light output surface 102 opposite to each other.

[0064] The first light-condensing micro-prism structure layer 12 is disposed on the light incident surface 101 of the substrate, and the second light-concentrating micro-prism structure layer 13 is disposed on the light-emitting surface 102 of the substrate 10 . And there are gaps between the first light concentrating microprism structure layers 12 , and the diffusion layer 11 is respectively disposed in these gaps and on the surface thereof, and the diffusion structure layer 11 is adjacent to the first light concentrating microprism ...

Embodiment 2

[0069] Please refer to figure 2 and image 3 As shown, the multifunctional composite optical film provided by the present invention includes a substrate layer 10 , a diffusion layer 11 , a first light-condensing micro-prism structure layer 12 , and a second light-concentrating micro-prism structure layer 13 . The substrate layer 10 has a light incident surface 101 and a light output surface 102 opposite to each other.

[0070] The first light-condensing micro-prism structure layer 12 is disposed on the light incident surface 101 of the substrate, and the second light-concentrating micro-prism structure layer 13 is disposed on the light-emitting surface 102 of the substrate 10 . In addition, there are gaps in the first light concentrating microprism structure layer 12 , and the diffusion layer 11 is disposed in these gaps and on the surface thereof, and the diffusion structure layer 11 is adjacent to the first light concentrating microprism structure layer 12 . The first con...

Embodiment 3

[0079] The invention provides a multifunctional composite optical film, comprising a base material layer, a diffusion layer, a first light-condensing micro-prism structure layer, and a second light-condensing micro-prism structure layer, and the base material has a light-emitting surface and a light-incoming surface , the first light concentrating microprism structure layer is located on the light incident surface of the substrate layer, the second light concentrating microprism structure layer is located on the light exit surface of the substrate layer, and the diffusion layer is located on the first light concentrating microprism structure The lower surface of the layer; the lower surface of the diffusion layer is located below the lower surface of the first light concentrating microprism structure layer. The diffusion layer completely covers the first light concentrating microprism structure layer. The vertical distance between the lower surface (or bottom surface) of the d...

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Abstract

The invention belongs to the optical technical field and relates to a multifunctional composite optical film applied to a liquid crystal display. The objective of the invention is to solve the problem of adverse influences on the lightening and thinning of a display device which are caused by a large number of optical films used in an existing backlight module set can be solved. The multifunctional composite optical film provided by the invention includes a base material layer, a diffusion layer, a first condensing micro prism structure layer and a second condensing micro prism structure layer; the base material layer is provided with a light outgoing surface and a light incoming surface which are opposite to each other; the first condensing micro prism structure layer is located at the light incoming surface of the base material layer; the second condensing micro prism structure layer is arranged on the light outgoing surface of the base material layer; the diffusion layer is located at the lower surface of the first condensing micro prism structure layer; the lower surface of the diffusion layer is located below the lower surface of the first condensing micro prism structure layer; and the diffusion layer completely covers the first condensing micro prism structure layer. The multifunctional composite optical film provided by the invention has excellent light enhancing, light uniformizing and anti-interference functions.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a multifunctional composite optical film applied to liquid crystal displays. Background technique [0002] The liquid crystal display includes a liquid crystal display panel and a backlight module. The backlight module is an important part of the liquid crystal display, and its main function is to provide a high-brightness and uniform surface light source for the liquid crystal display panel of the liquid crystal display. [0003] figure 1 It is a structural schematic diagram of a backlight module in the prior art. The backlight module 1 includes a first luminance enhancement film 10 , a second luminance enhancement film 11 , a diffusion film 12 , a light guide plate 13 , and a reflection film 14 stacked in order from top to bottom. A light source 15 is also provided on one side of the light guide plate 13 to provide a line light source incident on the light guide plate 13 , a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/04
Inventor 李刚余洋顾春红张彦唐海江
Owner NINGBO EXCITON TECH
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