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Front panel for display device

A display device and front panel technology, which is applied to identification devices, instruments, optics, etc., can solve problems such as reflection of surrounding scenery and driving obstacles, and achieve the effect of good clarity

Pending Publication Date: 2020-03-06
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the display image from the display device is to be visually recognized through the front panel, there are often cases where the surrounding scenery is reflected.
Especially in a vehicle-mounted display device, such reflection may hinder driving, and it is necessary to suppress it as much as possible.

Method used

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  • Front panel for display device
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  • Front panel for display device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0168] By the following method, the aforementioned Figure 4 The front panel of the structure shown.

[0169] A substrate made of polycarbonate (Carboglass Polish Gray; manufactured by AGC Polycarbonate Co., Ltd.) having a thickness of 0.5 mm was used as the support body. The visible light transmittance of this substrate was 65%.

[0170] An anti-glare layer was formed on one surface (referred to as the second surface) of the substrate by the following method.

[0171] First, an acrylic resin containing silica microparticles (average particle diameter 2 μm) (hereinafter referred to as "matting agent") and an acrylic solvent resin not containing microparticles (hereinafter referred to as "transparent agent") were mixed at 65: A weight ratio of 35 was mixed to prepare a mixed solution. Furthermore, propylene glycol monomethyl ether was added to this liquid mixture, and the solid content concentration was diluted to 15%.

[0172] Next, the obtained coating liquid was applied ...

example 2

[0199] By the same method as in Example 1, a front panel was produced. However, in this example 2, in order to form an anti-glare layer, the mixing ratio of a mat agent and a transparent agent was made into 70:30 by weight ratio, and the mixed liquid was prepared. Other conditions are the same as in Example 1.

[0200] Thus, a front panel (hereinafter referred to as "sample 2") was manufactured.

example 3

[0202] By the same method as in Example 1, a front panel was produced. However, in this example 3, in order to form an anti-glare layer, the mixing ratio of a mat agent and a transparent agent was set to 75:25 by weight ratio, and the mixed liquid was prepared. Other conditions are the same as in Example 1.

[0203] Thus, a front panel (hereinafter referred to as "sample 3") was produced.

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Abstract

The present invention provides a front panel for a display device, the front panel having: a transparent support (110) having first and second surfaces (112, 114); a low-reflection layer (120) disposed on the first surface side of the support; and an anti-glare layer (130) disposed on the second surface side of the support, wherein the anti-glare layer is formed by dispersing, in a resin matrix (132), particles (134) having an average diameter of 1-10 [mu]m.

Description

technical field [0001] The present invention relates to front panels for display devices such as liquid crystal displays. Background technique [0002] A front panel is provided on the front surface of a display device such as a liquid crystal display for the purpose of protecting the display device. [0003] However, when the display image from the display device is to be visually recognized through the front panel, the surrounding scenery may often be reflected. Especially in a display device for a vehicle, such a reflection may hinder driving, and it is necessary to suppress it as much as possible. [0004] Therefore, in order to suppress such reflection, recently, a front panel having unevenness on the surface, a so-called anti-glare treatment front panel has been proposed. Contents of the invention [0005] The problem to be solved by the invention [0006] For the reasons described above, anti-glare treatment is often applied to the front panels for recent display...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/00G02B5/02G02F1/1335
CPCG02F1/1335G09F9/00G02B5/0226G02B5/0242G02B5/0278
Inventor 御手洗和彦森本保西川泰永
Owner ASAHI GLASS CO LTD