Touch panel structure

A touch panel and ink layer technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problems of bubble cost at the inner edge of the ink, bubbles at the inner edge of the ink, etc., to improve production Success rate, reduction of air content, and the effect of meeting the requirements of appearance quality

Inactive Publication Date: 2012-10-03
HANNSTAR DISPLAY NANJING
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the cost increase caused by the generation of bubbles on the inner edge of the ink caused by the bonding process of the touch sensing layer and the protective layer and the use of high pressure to press the touch sensing layer and the protective layer. There is also the problem of air bubbles on the inner edge of the ink

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0025] Such as Figure 2 to Figure 4 shown, where figure 2 for Figure 4 A-A 1 A cross-sectional view of a touch panel structure, including a touch sensing layer 1, a protective layer 2 and an adhesive layer 3 between the touch sensing layer 1 and the protective layer 2, the protective layer 2 is a protective glass layer, and the adhesive Layer 3 can use OCA (Optical Clear Adhesive, Optically Transparent Adhesive) glue, the edge of the bonding surface of protective layer 2 and touch sensing layer 1 is coated with ink 4, and the area not coated with ink 4 is the visible area 5, from figure 2 A-A 1 It can be seen from the cross-sectional view that the ink 4 is at least two layers of ink la...

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Abstract

The invention discloses a touch panel structure which comprises a protective layer, a touch sensing layer, and a rubber layer placed between the protective layer and the touch sensing layer, wherein inks are coated on the periphery of the edges on one face of the protective layer attached to the touch sensing layer; the inks are divided into at least two ink layers with each ink layer comprising a first ink layer and a second ink layer, wherein the first ink layer is placed on the protective layer, while the second ink layer is placed on the first ink layer; the internal edge of the second ink layer is contracted toward the edge of the protective layer so as to form a step with the first ink layer. With the adoption of the touch panel structure provided by the invention, the space size of an angle step clearance formed between the ink and the protective layer is reduced, the air content in the angle step clearance is greatly reduced, the generation of bubbles at the internal edge of the oil inks is prevented, the success rate of the production of the touch panel is improved, and the requirements of a user on the appearance quality of the touch panel attached to a module are met.

Description

technical field [0001] The invention relates to the technical field of electronic products, in particular to a structure for preventing air bubbles from being generated at edges of ink when touch panels are bonded together. Background technique [0002] In the prior art, during the lamination and molding process of the touch panel, the touch sensing layer and the protective layer of the touch panel are generally bonded together with an adhesive layer. Since the protective layer is printed with ink, a gap is formed between the ink and the protective layer. A 90-degree angle step is formed, and the gaps that appear during lamination tend to retain gas, causing air bubbles to always exist on the inner edge of the ink, which affects the appearance and cannot be eliminated. It is difficult to meet the customer's requirements for the appearance quality of the touch panel. [0003] At present, the usual way to solve the problem of bubbles on the inner edge of the ink is to use huge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 陈荣玮黄皓杰李晓峰
Owner HANNSTAR DISPLAY NANJING
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