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A kind of high-brightness prism bonding film and preparation method thereof

A high-brightness, laminated film technology, applied in the field of optical films, can solve the problems of large brightness loss and low light transmittance of optical modules

Active Publication Date: 2022-06-21
CHANGZHOU HUAWEI ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a new high-brightness prism lamination film for the low light transmittance of the double-layer PET superimposed structure of the prism lamination film in the prior art, which leads to a large loss of brightness of the entire optical module. and its preparation method

Method used

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  • A kind of high-brightness prism bonding film and preparation method thereof
  • A kind of high-brightness prism bonding film and preparation method thereof
  • A kind of high-brightness prism bonding film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A high-brightness prism lamination film, from bottom to top, comprises a back coating layer 1, a PET layer 2, a first prism layer 3, a second prism layer 4, the first prism layer 3 and the second prism layer 4, the first prism layer 3 and the second prism layer Prisms are arranged on each layer 4 in an array, the apex angles of the prisms of the first prism layer 3 are inserted into the lower surface of the second prism layer 4, and the longitudinal extension direction of the prisms of the first prism layer 3 is the same as that of the second prism layer 3. The longitudinal extension direction of the prisms of the prism layer 4 is an included angle of 90°, the prism height of the first prism layer 3 is 20 μm, the height difference of each prism vertex of the first prism layer 3 is 0.5 μm, and the second prism The prism height of the layer 4 is 20 μm, the prisms of the second prism layer 4 are set at the same height, and the haze of the back coating layer 1 is 2%.

[003...

Embodiment 2

[0052] A high-brightness prism lamination film, from bottom to top, comprises a back coating layer 1, a PET layer 2, a first prism layer 3, a second prism layer 4, the first prism layer 3 and the second prism layer 4, the first prism layer 3 and the second prism layer Prisms are arranged on each layer 4 in an array, the apex angles of the prisms of the first prism layer 3 are inserted into the lower surface of the second prism layer 4, and the longitudinal extension direction of the prisms of the first prism layer 3 is the same as that of the second prism layer 3. The longitudinal extension direction of the prisms of the prism layer 4 is at an included angle of 90°, the prism height of the first prism layer 3 is 44 μm, the height difference of each prism vertex of the first prism layer 3 is 2 μm, and the second prism layer The prism height of 4 is 44 μm, the prisms of the second prism layer 4 are set at the same height, and the haze of the back coating layer 1 is 10%.

[0053]...

Embodiment 3

[0066] A high-brightness prism lamination film, from bottom to top, comprises a back coating layer 1, a PET layer 2, a first prism layer 3, a second prism layer 4, the first prism layer 3 and the second prism layer 4, the first prism layer 3 and the second prism layer Prisms are arranged on each layer 4 in an array, the apex angles of the prisms of the first prism layer 3 are inserted into the lower surface of the second prism layer 4, and the longitudinal extension direction of the prisms of the first prism layer 3 is the same as that of the second prism layer 3. The longitudinal extension direction of the prisms of the prism layer 4 is at an included angle of 90°, the prism height of the first prism layer 3 is 32 μm, the height difference of each prism vertex of the first prism layer 3 is 1.3 μm, and the second prism The prism height of the layer 4 is 32 μm, the prisms of the second prism layer 4 are set at the same height, and the haze of the back coating layer 1 is 6%.

[...

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Abstract

The invention discloses a high-brightness prism laminating film and a preparation method thereof, which successively comprise a back coating layer, a PET layer, a first prism layer, a second prism layer, a first prism layer and a second prism layer from bottom to top The upper array is provided with prisms, the apex angles of the prisms of the first prism layer are inserted into the lower surface of the second prism layer, the longitudinal extension direction of the prisms of the first prism layer and the longitudinal extension direction of the prisms of the second prism layer are at an angle of 90°, The prism height of the first prism layer is 20-44 μm, the height difference of each prism apex of the first prism layer is 0.5-2 μm, the prism height of the second prism layer is 20-44 μm, and each prism of the second prism layer is arranged at the same height , The haze of the back coat is 2-10%. The invention simplifies the double-layer PET layer structure in the prior art, reduces the light interference phenomenon in the whole module, thereby reduces the light loss, significantly improves the brightness of the prism bonding film, simplifies the preparation process and assembly process, and saves cost.

Description

technical field [0001] The invention relates to an optical film, in particular to a high-brightness prism bonding film and a preparation method thereof. Background technique [0002] The structure of the existing prism bonding film is generally a first PET layer, a first prism layer, a second PET layer, and a second prism layer from bottom to top. At the same time, since the light transmittance of PET is only about 90%, the double-layer PET superimposed structure will lead to low light transmittance, which in turn leads to a large loss of brightness of the entire optical module. SUMMARY OF THE INVENTION [0003] The invention provides a new high-brightness prismatic laminating film in view of the defects in the prior art, such as low light transmittance of the double-layer PET superimposed structure of the prismatic laminating film, which leads to a large loss of brightness of the entire optical module. and its preparation method. [0004] In order to solve the above-men...

Claims

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Application Information

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IPC IPC(8): G02B5/04C08J7/04C08J7/12C09D133/04C09D175/14C09D191/06C08L67/02
CPCG02B5/045C08J7/042C08J7/123C08J2367/02C08J2433/04C08J2475/14C08J2491/06
Inventor 翟才金季文静丁利明
Owner CHANGZHOU HUAWEI ADVANCED MATERIAL
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