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Brightness enhancement film suitable for television backlight

A technology of brightening film and backlight, applied in the field of materials, can solve the problem that the brightness of the brightening film cannot meet the requirements, and achieve the effects of cost saving, easy availability of materials, and cheap materials

Inactive Publication Date: 2018-02-02
张永宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing brightness enhancement film still has the problem that the increase in brightness cannot meet the requirements, especially in the field of TV backlight, and the performance needs to be further improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A brightness enhancement sheet suitable for TV backlighting comprises a brightness enhancement sheet body, a positive coating coated on the front of the brightness enhancement sheet body, and a back coating coated on the back of the brightness enhancement sheet body.

[0020] The brightness enhancement sheet body is composed of the following raw materials in parts by weight:

[0021] 2 parts of polyamide, 4 parts of polybutadiene-acrylonitrile, 2 parts of polybutylacrylate, 5 parts of ethyl acrylate copolymer, 20 parts of polyphthalamide, 10 parts of polyethylene oxide, 30 parts of polyethylene Parts, polyarylate 12 parts.

[0022] Described positive coating is made up of the raw material of following weight part:

[0023] 6-10 parts of pearl powder, 5-8 parts of jelly wax, 4-6 parts of mica powder, 5-8 parts of titanium dioxide, 5-8 parts of graphene, 3-5 parts of lithopone.

[0024] Described back coating is made up of the raw material of following weight part:

[...

Embodiment 2

[0028] A brightness enhancement sheet suitable for TV backlighting comprises a brightness enhancement sheet body, a positive coating coated on the front of the brightness enhancement sheet body, and a back coating coated on the back of the brightness enhancement sheet body.

[0029] The brightness enhancement sheet body is composed of the following raw materials in parts by weight:

[0030] 4 parts of polyamide, 4 parts of polybutadiene-acrylonitrile, 3 parts of polybutyl acrylate, 6 parts of ethyl acrylate copolymer, 23 parts of polyphthalamide, 15 parts of polyethylene oxide, 35 parts of polyethylene Parts, polyarylate 15 parts.

[0031] Described positive coating is made up of the raw material of following weight part:

[0032] 6-10 parts of pearl powder, 5-8 parts of jelly wax, 4-6 parts of mica powder, 5-8 parts of titanium dioxide, 5-8 parts of graphene, 3-5 parts of lithopone.

[0033] Described back coating is made up of the raw material of following weight part:

...

Embodiment 3

[0037] A brightness enhancement sheet suitable for TV backlighting comprises a brightness enhancement sheet body, a positive coating coated on the front of the brightness enhancement sheet body, and a back coating coated on the back of the brightness enhancement sheet body.

[0038] The brightness enhancement sheet body is composed of the following raw materials in parts by weight:

[0039] 6 parts of polyamide, 5 parts of polybutadiene-acrylonitrile, 4 parts of polybutyl acrylate, 8 parts of ethyl acrylate copolymer, 25 parts of polyphthalamide, 20 parts of polyethylene oxide, 40 parts of polyethylene Parts, polyarylate 18 parts.

[0040] Described positive coating is made up of the raw material of following weight part:

[0041] 6-10 parts of pearl powder, 5-8 parts of jelly wax, 4-6 parts of mica powder, 5-8 parts of titanium dioxide, 5-8 parts of graphene, 3-5 parts of lithopone.

[0042] Described back coating is made up of the raw material of following weight part:

...

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Abstract

A brightness enhancement film suitable for television backlight comprises a brightness enhancement film body, a front coating coated on a front side of the brightness enhancement film body, and a backcoating coated on a back side of the brightness enhancement film body. The brightness enhancement film body comprises, by weight, 2-6 parts of polyamide, 4-5 parts of polybutadiene-acrylonitrile, 2-4parts of polybutyl acrylate, 5-8 parts of ethylene-ethyl acrylate copolymers, 20-25 parts of polyphthalamide, 10-20 parts of polyethylene oxide, 30-40 parts of polyethylene, and 12-18 parts of polyarylester. The brightness enhancement film is specially designed for the television backlight. Appropriate materials are selected for the brightness enhancement film, and the front coating and the backcoating are coated on the front side and the back side respectively so that a brightness enhancement effect of the brightness enhancement film is 5%-10% higher than the effect of a common brightness enhancement film. Simultaneously, the materials are cheap and are easy to get, and cost is saved.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a brightness enhancement sheet suitable for TV backlights. Background technique [0002] Enhancement film is widely used in notebook computers, LCD monitors, LCD TVs, portable DVD players, car navigation systems, touch-screen mobile phones, digital cameras, digital video equipment, etc. [0003] If it is assembled in front of the backlight, and the light emitted by the light source is concentrated toward the user of the display device, the front brightness can be increased by about 100% (in the case of two orthogonal use, there are horizontal and vertical BEF). Moreover, the unused light outside the angle of view is recycled according to the light re-reflection effect, and is gathered to the user at the most appropriate angle. However, the existing brightness enhancement sheet still has the problem that the increase in brightness cannot meet the requirements, especially in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/04G02B1/111C08L23/06C08L77/00C08L33/08C08L71/02C08L67/00C09D191/06C09D7/65C09D7/61C09D123/06
CPCC08K3/00C08K3/04C08K3/34C08K2003/2241C08K2003/3045C08L23/06C08L2205/025C08L2205/035C09D123/06C09D191/06G02B1/04G02B1/111C08L77/00C08L33/08C08L71/02C08L67/00C08L33/20C08L93/02C08L93/00C08L93/04
Inventor 张永宏
Owner 张永宏
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