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Hard coating film and touch panel using the same

A touch panel and hard coating technology, applied in layered products, synthetic resin layered products, instruments, etc., can solve problems such as scratches, splashing glass substrate fragments, damage to liquid crystal display elements, etc., and achieve the effect of preventing splashing

Inactive Publication Date: 2013-02-13
KEIWA INCORPORATED
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the touch panel used, when the glass substrate is strongly pressed by the viewer or the touch panel is dropped, the glass substrate, etc. may be damaged and the above-mentioned fragments may be scattered.
Therefore, the above-mentioned touch panel has the following problems. When the glass substrate or the like is splashed, there is a danger that the above-mentioned fragments scratch the fingers of the viewer and cause injury to the viewer. In addition, the above-mentioned fragments may also damage the liquid crystal stacked on the back side of the touch panel. Reason for displaying components

Method used

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  • Hard coating film and touch panel using the same
  • Hard coating film and touch panel using the same

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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to appropriate drawings.

[0033] figure 1 The hard coat film 1 has a base material layer 2 , a hard coat layer 3 and an adhesive layer 4 . In a touch panel-mounted liquid crystal display device, the hard coat film 1 is laminated on the glass substrate by attaching the adhesive layer 4 to the surface and / or the back surface of the glass substrate of the touch panel.

[0034] Since the base material layer 2 is required to transmit light, it is formed to be transparent, especially colorless and transparent. There are no particular restrictions on the main components constituting the base material layer 2, typically consisting of polycarbonate-based resins, cycloolefin-based resins, acrylic-based resins, polypropylene-based resins, and polyethylene terephthalate-based resins. Substances selected in the group. The aforementioned synthetic resin has excellent optical transparency ...

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Abstract

The purpose of the invention is to provide a hard coating film and a touch panel using the same. The hard coating film effectively prevents glass fragment from splashing when a glass substrate is damaged. The hard coating film of the invention comprises a transparent basis material layer, a hard coating layer which is bonded on one surface of the transparent basis material layer, and a bonding layer which is bonded on the other surface of the basis material layer. A delay value in plane (Ro) is less than 100 nm. And delay value (Rth) in thickness direction is less than 200 nm. In the hard coating film, the basis material layer preferably uses polycarbonate resin, cycloolefin copolymer, or acrylic acid series resin as main ingredient. The average thickness of the basis material layer of the hard coating layer is more than 10 [mu] m but less than 500 [mu] m. Preferably, the haze degree of the hard coating film is less than 2%.

Description

technical field [0001] The invention relates to a hard coat film and a touch panel suitable for use in a liquid crystal display device. Background technique [0002] Liquid crystal display modules (LCD) are mostly used as flat panel displays due to their thinness, lightness, and low power consumption. Their applications as information display devices such as mobile phones, PDAs, personal computers, and televisions are expanding year by year. In recent years, various characteristics have been required for liquid crystal display modules depending on the application, and examples include brightness (higher brightness), ease of viewing (wider viewing angle), energy saving, thinner and lighter screens, and larger screens. [0003] As the above-mentioned liquid crystal display module, there is also a product in which a touch panel is mounted to improve operability, speed, etc. for a viewer. Therefore, a liquid crystal display module equipped with the above-mentioned touch panel g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B7/02B32B27/06G06F3/041G02F1/1333B32B27/30B32B27/32B32B27/36G02B1/10G02B1/14
CPCB32B7/12B32B27/06G06F3/041
Inventor 冈部元彦远藤大士赤松正
Owner KEIWA INCORPORATED
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