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Light Transmissive Substrate

A technology of light transmittance and substrate, applied in the direction of diffusing elements, etc., can solve the problems of high manufacturing cost of lens film, narrow material selection range, expensive backlight module, etc., to achieve high brightness and improve brightness uniformity. degree of effect

Active Publication Date: 2016-08-24
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these existing lens films are expensive to manufacture and are considered to be the main reason for the high price of the backlight module. In addition, the existing lens films are also limited by their manufacturing methods, so that the material selection range is too narrow
Furthermore, the lens film must be used in combination with the light-diffusing film because it has no light-diffusing effect, resulting in the problem of complicated assembly steps of the backlight module.

Method used

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  • Light Transmissive Substrate
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Examples

Experimental program
Comparison scheme
Effect test

experiment example 6-10

[0126]

[0127]

[0128]

[0129] Please refer to Figure 4 , shows the roughness curve of part of the surface of the comparative example obtained by directly measuring the surface of the comparative example with a laser conjugation instrument. According to the measurement results, the current diffusion plate (comparative example) has no obvious difference between the top surface and the bottom surface, and they are all rough surfaces with many potholes with large height differences. The surface Rz of the two groups is 11.99 μm and 9.49 μm, which means that the surface of the current diffusion plate is very uneven.

[0130] Please also refer to Figure 5A and Figure 5B . Figure 5A A roughness curve of the platform top surface 201 of the protruding part 20 obtained by directly measuring the surface of the protruding part 20 of the light-transmitting substrate 1 in Experimental Example 1 with a laser conjugation focal meter is shown. The platform top surface 201 o...

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Abstract

The invention discloses a light transmissive substrate. The substrate comrpises a body with a first surface, and a protrusion which is on the first surface and protruded from the first surface; the protrusion comprises an irregular upper surface and an inclined surface, wherein the inclined surface is connected to the first surface and the irregular upper surface, the height from the first surface to the irregular upper surface is 5-40 [mu]m, and the maximum width of the irregular upper surface is 0.15-8mm. The light transmissive substrate can be used as a diffusion block, in order to maintain high brightness and improve uniformity ratio of brightness.

Description

technical field [0001] The present invention relates to a light-transmitting base material, and particularly relates to a light-transmitting base material having protrusions which can be used as a diffusion plate. Background technique [0002] The diffuser plate is an optical plate used in electronic products such as displays. Its main function is to diffuse and atomize the light from the light source, so that the product screen presents a picture quality with uniform brightness. Different electronic products have different requirements for screen quality. Therefore, diffuser manufacturers manufacture diffuser panels with different light transmittances according to the requirements of downstream manufacturers. Taking a side-facing backlight module applied to a display (such as a liquid crystal display device) as an example, it generally includes a light guide plate formed of a light-transmitting material, and a light source (such as a line light source formed by a cold catho...

Claims

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Application Information

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IPC IPC(8): G02B5/02
Inventor 陈信宏王崇豪
Owner CHI MEI CORP
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