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a brightening film

A technology of brightness enhancement film and prism, used in instruments, nonlinear optics, optics, etc., can solve problems such as Moiré effect and Newton's rings, and achieve the effect of improving brightness gain, avoiding light interference, and reducing Moire effect.

Active Publication Date: 2020-02-28
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the defect that the existing brightness enhancement film is easy to produce moiré effect and Newton ring, the invention provides a brightness enhancement film

Method used

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Embodiment 1

[0059] The present invention provides a brightness enhancement film, the brightness enhancement film comprises a base material layer 2 and a prism structure layer 1, the prism structure layer 1 is bonded on the base material layer 2, and the prism structure layer 1 is formed by repeating Unit composition, the repeating unit includes a first prism structure unit 11 and a second prism structure unit 12; the first prism structure unit 11 is a group of concentric prism rays; the second prism structure unit 12 is a group of concentric prisms Ring; the second prism structure unit 12 intersects with the first prism structure unit 11 . The prism structure layer is composed of several repeating units. A set of concentric prism rays includes several prism rays. A set of concentric prism rings includes several prism rings. The prism ring is a prism ring. in,

[0060] The prism rays are evenly distributed. Adjacent prism rays 111 and prism rays 112 are straight lines with a length of...

Embodiment 2

[0063] Brightness enhancing film as provided in embodiment 1, wherein,

[0064] The included angle between the prism ray 111 and the prism ray 112 is 5°,

[0065] The peak width of the prism rays and prism rings is 70 microns.

[0066] The relevant properties are shown in Table 1.

Embodiment 3

[0068] Brightness enhancing film as provided in embodiment 1, wherein,

[0069] The included angle between the prism ray 111 and the prism ray 112 is 3°,

[0070] The peak width of the prism rays and prism rings is 50 microns.

[0071] The relevant properties are shown in Table 1.

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Abstract

The invention relates to the field of liquid crystal display back light modules technique, and particularly relates to a brightening film and a method for its production. The invention provides a brightening film, so as to overcome the defect that an existing brightening film is prone to the Moore effect and the Newton ring. The invention comprises a substrate and a prism structure layer, wherein the prism structure layer is bonded to the base material layer, and the prism structure layer is composed of repeating units including a first prism structure unit and a second prism structural unit; the first prism structure unit is a group of concentric prismatic rays; the second prism structure unit is a group of concentric prismatic rings; the second prism structure unit intersects the first prism structure unit. A group of concentric prismatic rays includes a number of prismatic rays. A group of concentric prismatic rings includes a number of prismatic rings. The invention can improve the brightness gain and have the anti-interference effect, and can reduce the Newton ring phenomenon and the Moore effect.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a brightness enhancing film applied to a backlight module of a liquid crystal display. Background technique [0002] In recent years, with the increasing popularity of liquid crystal display devices such as televisions, computers, mobile phones, etc., people's demand for liquid crystal display screens is increasing. The backlight module is one of the key components of the LCD panel. The function is to supply sufficient brightness and evenly distributed light source so that it can display images normally. Generally speaking, backlight modules can be divided into two types: frontlight and backlight, and the backlight can be classified according to the size requirements and the position of the lamp tube, and the following three structures have been developed. [0003] Edge lighting, the light source (Edge lighting) is a single light source placed on the side, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335
CPCG02F1/133504G02F1/133507
Inventor 金亚东刘海波
Owner NINGBO CHANGYANG TECH
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