Capacitive screen and preparation method thereof

A capacitive screen and metal conductive layer technology, which is applied in the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problems of disconnection of touch sensing lines, affecting production yield, and process instability. , to reduce the space occupied, improve the process stability, and improve the process yield.

Inactive Publication Date: 2016-11-30
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

In this process, since the metal layer is plated on the ITO layer through a vacuum sputtering process, there are tiny voids in the metal layer, which cannot be ruled out by normal visual inspection. The voids are prone to side erosion after one metal etching and one ITO etching. This leads to a significant increase in the air-through area, resulting in disconnection of the touch sensing circuit, which affects the production yield and brings instability to the process.

Method used

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  • Capacitive screen and preparation method thereof
  • Capacitive screen and preparation method thereof
  • Capacitive screen and preparation method thereof

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] Please see figure 1 , figure 1 It is a schematic flow chart of a method for preparing a capacitive screen according to an embodiment of the present invention. Such as figure 1 As shown, the preparation method of the capacitive screen 20 of the present embodiment includes:

[0040] S11: Provide a transparent substrate 21 .

[0041] Such as figure 2 As shown, a transparent substrate 21 is provided, and the transparent substrate 21 ca...

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Abstract

The invention discloses a capacitive screen and a preparation method thereof, an ITO layer with the surface being a metal conducting layer is arranged on a transparent substrate, the metal conducting layer and the ITO layer are subjected to chemical etching to form a display area and periphery routing areas of the display area, the periphery routing areas are subjected to laser etching further, and a touch sensing circuit is formed. According to the manner, the occupied space of the touch sensing circuit of the capacitive screen can be effectively reduced, the screen occupation rate of the product is improved, the appearance effect of a narrow frame of the product can be realized, and the process yield and the technological stability of the product are effectively promoted.

Description

technical field [0001] The invention relates to the technical field of capacitive touch screen production, in particular to a capacitive touch screen and a preparation method thereof. Background technique [0002] With the development and maturity of electronic products, the scope of application of touch screens has gradually expanded, and its manufacturing technologies have also shown diversity. At present, the common capacitive touch screen structures are G+G (glass to glass capacitive touch screen), OGS (single glass capacitive touch screen), GF (glass to soft film capacitive touch screen), GFF (glass to double layer soft touch screen) Film capacitive touch screen) and other external capacitive screens, as well as On cell (touch panel function embedded between the color filter substrate and polarizer), In cell (touch panel function embedded in liquid crystal pixels) as representatives Embedded capacitive screen. While the product performance is steadily improving, the s...

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Application Information

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IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/044G06F3/0412G06F2203/04103
Inventor 李波
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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