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Brightness enhancement film, pressing wheel and preparation method of pressing wheel

A technology of brightness-enhancing film and pressure roller, which is applied in the field of optical film, can solve the problems such as moiré and interference fringes easily produced by the brightness-enhancing film, and achieve the effects of eliminating adverse effects on the picture, enhancing light diffusion, and low production cost

Pending Publication Date: 2021-01-15
DONGGUAN GUANGZHI PHOTOELECTRIC CO LTD
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a brightness enhancement film, a pressure roller and a preparation method of the pressure roller, aiming to solve the problem that the brightness enhancement film is prone to produce optical defects such as moiré and interference fringes

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  • Brightness enhancement film, pressing wheel and preparation method of pressing wheel
  • Brightness enhancement film, pressing wheel and preparation method of pressing wheel
  • Brightness enhancement film, pressing wheel and preparation method of pressing wheel

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the ...

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Abstract

The invention relates to the technical field of optical films, in particular to a brightness enhancement film, a pressing wheel and a preparation method of the pressing wheel. The brightness enhancement film comprises a substrate and a prism structure stacked on the substrate, the prism structure is formed by a plurality of triangular prisms, the center line of one triangular prism is not parallelto the center line of the other triangular prism, and the center line is the center line from the peak of the triangular prism to the plane where the substrate is located. The pressing wheel is usedfor rolling to form the prism structure, a groove structure is formed in the pressing wheel, and the groove structure corresponds to the prism structure. The preparation method of the pressing wheel is used for machining the pressing wheel and comprises the steps that a base material and a cutter are provided, the base material is cut through the cutter, the cutter deflects by an angle after moving so as to cut the base material again, and the base material forms a groove structure after the above steps are repeated for many times. The brightness enhancement film can effectively reduce the generation of optical defects such as moire fringes and interference fringes.

Description

technical field [0001] The invention relates to the technical field of optical films, in particular to a brightness enhancing film, a pressure roller and a preparation method of the pressure roller. Background technique [0002] Brightness enhancing film, also known as prism sheet, is widely used in backlight modules of liquid crystal displays to improve the luminous efficiency of the entire backlight module. The brightness enhancement film includes a prism structure. Using the special prism structure of the brightness enhancement film, through optical principles such as refraction, total reflection, and light accumulation, the light in all directions can be concentrated to the central viewing angle, thereby improving the brightness of the LCD and controlling the viewing angle. . [0003] Generally, during the processing of the brightness enhancement film, the prism structure of the brightness enhancement film needs to be formed by rolling with a pressure roller. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/13357
CPCG02F1/133504G02F1/133606
Inventor 洪志宗张立典蔡宏锴
Owner DONGGUAN GUANGZHI PHOTOELECTRIC CO LTD
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