Dynamic backlight LED optical composite film and preparation method thereof

An optical composite film and dynamic backlight technology, which is applied in the field of optical composite film, can solve the problems of lower assembly yield, increased manufacturing cost, and uneven brightness, and achieve the effects of easy processing, increased stiffness, and increased hardness

Inactive Publication Date: 2020-08-04
马鞍山东毅新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the size of the backlight module becomes larger and the film stiffness is not good, the film will appear high on both sides and low in the middle, resulting in uneven brightness and light spots
At the same time, as the size increases, the assembly yield rate gradually decreases, and the manufacturing cost continues to increase

Method used

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  • Dynamic backlight LED optical composite film and preparation method thereof
  • Dynamic backlight LED optical composite film and preparation method thereof
  • Dynamic backlight LED optical composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see Figure 1-2 , a dynamic backlight LED optical composite film, comprising a diffusion film 1, an enhancement prism film 2, a polarizing film 3 and a microlens film 4, and the diffusion film 1, the enhancement prism film 2, the polarizing film 3 and the microlens film 4 are in order from bottom to top Bonding through the glue layer 5, the adhesive of the glue layer 5 adopts at least one of acrylic resin, polyurethane acrylate resin, polyester acrylate resin and epoxy acrylate resin, and the thickness of the glue layer 5 is 0.5 μm-5 μm According to the use position of the glue layer 5, different thicknesses can be selected. When using, the surface to be applied needs to be cleaned and kept dry. The lower surface of the diffusion film 1 is connected with an isolation film 6, and the polarizing film 3 adopts a reflective polarizer. It uses multi-layer film technology to combine nearly thousand layers of polymer films with special birefringence characteristics into an opt...

Embodiment 2

[0056] see Figure 7 , the lightening prism film 2 can be arranged as two overlapping layers, and the two layers are bonded by a glue layer 5, and the inclination angles of the side walls of the strip prisms 21 of the two layers of lightening prism film 2 are respectively 120°-145° and 45° -60°, the oblique angles of the two layers of strip prisms 21 are complementary, which can increase the range of brightness enhancement, maximize the synergistic effect of the two layers of prisms, and add a layer of brightness enhancement to the upper surface of the brightness enhancement prism film 2 through the glue layer 5 during preparation. The prism film 2 is enough.

[0057] In summary: the dynamic backlight LED optical composite film and its preparation method can effectively protect the circuit by adding an antistatic layer 11 on the lower surface of the traditional diffusion film 1 to improve the antistatic function of the diffusion film 1. The lower surface of the antistatic lay...

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Abstract

The invention discloses a dynamic backlight LED optical composite film and a preparation method thereof. The dynamic backlight LED optical composite film comprises a diffusion film, a brightness enhancement prism film, a polarizing film and a micro lens film, wherein the diffusion film, the brightness enhancement prism film, the polarizing film and the micro lens film are sequentially bonded through glue layers from bottom to top; the lower surface of the diffusion film is connected with an isolation film; and the diffusion film comprises an antistatic layer, a PET substrate layer and a diffuse reflection layer, wherein the lower surface of the PET substrate layer is connected with the upper surface of the antistatic layer. According to the dynamic backlight LED optical composite film andthe preparation method thereof, the antistatic layer is added to the lower surface of a traditional diffusion film, so that the antistatic function of the diffusion film is improved, and the circuit can be effectively protected; in addition, the lower surface of the antistatic layer is provided with the strip-shaped edge grooves and the fixing grooves, so that a deformation space is provided for the diffusion film; meanwhile, the tips of the strip-shaped edge grooves make contact with a light guide plate, so that the diffusion film and the light guide plate can be prevented from being bonded together; and the isolation film is added, so that elasticity is good, softness is achieved, and the optical composite film can be prevented from scratching light guide.

Description

technical field [0001] The invention relates to the technical field of optical composite films, in particular to a dynamic backlight LED optical composite film and a preparation method thereof. Background technique [0002] Generally speaking, the main structure of a liquid crystal display includes two parts: a panel and a backlight assembly. Among them, the panel part includes, for example, indium tin oxide conductive glass, liquid crystal, alignment film, color filter, and driver integrated circuit, etc.; and the backlight component includes, for example, lamp tubes, light guide plates, and various optical films. Among them, the optical film usually includes a variety of films, and different films have different functions, such as brightness enhancement and diffusion. The multilayer film can enhance the optical effect after stacking, but it brings difficulties to production. In the prior art, each independent optical film has only partial functions and cannot meet the per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02B5/30G02B5/04G02B3/00G02B1/16G02B1/14G02F1/13357
CPCG02B3/0006G02B5/0236G02B5/0268G02B5/045G02B5/3041G02F1/1336G02B1/14G02B1/16
Inventor 孟凡伟
Owner 马鞍山东毅新材料科技有限公司
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