High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof

A high transmittance, manufacturing equipment technology, applied in prisms and other directions, can solve the problems of complex manufacturing process and low transmittance, and achieve the effects of stable refractive index, improved transmittance, and low cost of raw materials

Inactive Publication Date: 2013-10-09
FUJIAN ZHENGDE OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brightness enhancement film of this structure has a multi-layer structure, low transmittance, and complicated manufacturing process

Method used

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  • High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof
  • High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof
  • High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2 and image 3 As shown, a high transmittance optical brightening film manufacturing equipment, which includes a hot air blower 2, a feed hopper 3, a hot air dryer 4, an air locker 5, hot-melt equipment 6, a patterned roller 8 and a frosted roller 9. The hot air blower 2 is fixedly installed on one side of the platform 1, and the hot air dryer 4 is installed on the other side of the platform 1. The pipeline connecting the hot air blower 2 and the hot air dryer 4 is provided with a feed hopper 3, and the hot air dryer 4 The outlet end of the air locker 5 is connected to the inlet end of the air locker 5, and the outlet end of the air locker 5 is connected to the inlet end of the hot-melt equipment 6. The outlet end of the hot-melt equipment 6 is provided with a calendering smooth roller group 7, and the patterned roller 8 is connected with the frosted The roll 9 is matched and arranged on the left side of the calender roll group 7 .

[0035]...

Embodiment 2

[0049] A high-transmittance optical brightness-enhancing film manufacturing equipment, the structure of which is the same as that of Embodiment 1.

[0050] A process for manufacturing an optical brightness-enhancing film using the manufacturing equipment of the optical brightness-enhancing film of high transmittance, which includes the following steps:

[0051] S1. Preparation of patterned roll: electroplate a nickel alloy layer with a thickness of 750 μm on the surface of the calendered smooth roll by electrochemical method, use an ultra-precision diamond special machine tool, and the ambient temperature is 20 ° C, engrave the tooth shape on the nickel alloy layer Grating structure with a pitch of 150 μm;

[0052] S2, material preparation: select PC, PMMA or PET with a transmittance of 88% and a refractive index of 1.57 as the base material, and fully mix it with a plasticizer and a light diffusing agent in a ratio of 100:1.5:1.5, and set aside;

[0053] S3, drying: the mixtur...

Embodiment 3

[0061] A high-transmittance optical brightness-enhancing film manufacturing equipment, the structure of which is the same as that of Embodiment 1.

[0062] A process for manufacturing an optical brightness-enhancing film using the manufacturing equipment of the optical brightness-enhancing film of high transmittance, which includes the following steps:

[0063] S1. Preparation of patterned roll: electroplate a nickel alloy layer with a thickness of 1000 μm on the surface of the calendered smooth roll by electrochemical method, use an ultra-precision diamond special machine tool, and the ambient temperature is 20.1 ° C, engrave teeth on the nickel alloy layer Grating structure with a pitch of 250 μm;

[0064] S2, material preparation: select PC, PMMA or PET with a transmittance of 90% and a refractive index of 1.53 as the base material, and fully mix it with a plasticizer and a light diffusing agent in a ratio of 100: 2: 2, and set aside;

[0065] S3, drying: the mixture obtai...

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Abstract

The invention relates to a high-transmittance optical brightness enhancement film. The film comprises a brightness enhancement film body (11), and a microprism structure (12) disposed on the upper surface of the brightness enhancement film body (11), wherein the pitch of the microprism structure is 25 [mu]m to 200 [mu]m. A manufacture apparatus of the film comprises a hot-air machine (2), a feed hopper (3), a hot-air drier (4), an air lock device (5), a hot melt device (6), a pattern roller (8) and a grinding roller (9), wherein the outlet end of the hot melt device (6) is equipped with a calender roller group (7), and the pattern roller (8) and the grinding roller (9) are in cooperation and disposed at the left side of the calender roller group (7). A manufacture process of the film comprises the following steps: S1, pattern roller preparation; S2, material preparing; S3, drying; S4, hot melting of granular materials; S5, calendaring; S6, moulding; and S7, final processing. The advantages are that processing cost is low, the influence on the environment in the manufacture process is small, the manufacture technology is simple, and transmittance is high.

Description

technical field [0001] The invention relates to a brightness enhancement film, in particular to an optical brightness enhancement film with high transmittance, manufacturing equipment and a manufacturing process thereof. Background technique [0002] At present, the brightness enhancement film materials on the market are usually produced by UV light curing process. This process is actually one or more layers of liquid glue on a biaxially stretched plastic material. The pattern roller is rolled on this liquid glue. Pressing to form the structural pattern of the brightness enhancement film, due to the inconsistency of the light transmittance and refractive index of the substrate and the glue, the formed grating structure changes, resulting in a change in the refraction direction of the light, which also affects the increase in light transmittance. The cost of importing raw materials is high, the transmittance is low, the process procedures are complicated, and the production e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29C43/24B29C59/04B29B13/06G02B5/04
Inventor 吴庆富
Owner FUJIAN ZHENGDE OPTOELECTRONICS TECH CO LTD
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