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Manufacturing method of thin film touch sensor and thin film touch sensor

A technology of touch sensing and manufacturing methods, which is applied in the input/output process of instruments, data processing, electrical digital data processing, etc., and can solve the problem of stacking offset of each layer of lines, small stacking offset of lines, and exposure alignment efficiency Low-level problems, to achieve the effect of small line stack offset, accurate exposure alignment, stable and controllable shape and size changes

Active Publication Date: 2019-07-09
LENS TECH CHANGSHA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide a method for manufacturing a thin-film touch sensor, which can effectively solve the problems of low exposure alignment efficiency and stacking offset of each layer of circuits, accurate exposure alignment, high efficiency, and circuit stacking Small offset, high product yield, in addition, thin film touch sensors can also be produced in sheets

Method used

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  • Manufacturing method of thin film touch sensor and thin film touch sensor
  • Manufacturing method of thin film touch sensor and thin film touch sensor
  • Manufacturing method of thin film touch sensor and thin film touch sensor

Examples

Experimental program
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Effect test

Embodiment 1

[0068] A method for manufacturing a thin film touch sensor, comprising the following steps:

[0069] (a) Bake the rigid carrier plate coated with the film base material, the baking temperature is 130°C, and the baking time is 60 minutes; the film base material is a PET film base material, the rigid carrier plate is a glass plate, and the film base material is a glass plate. The bonding glue between the material and the rigid carrier is acrylic glue;

[0070] (b) Make multi-layer touch circuit:

[0071] The first ITO coating;

[0072] The first ITO circuit process: photoresist coating, soft baking, exposure, development, hard baking, etching, and photoresist stripping. The soft baking temperature is 110°C. After baking, let it stand for 3 minutes, and the temperature of the exposure table is controlled at 25°C;

[0073] The first OC line process: OC photoresist coating, soft baking, exposure, development and curing, the soft baking temperature is 110 °C, the soft baking time ...

Embodiment 2

[0081] A manufacturing method of a thin-film touch sensor differs from Embodiment 1 in that the baking temperature is 140° C. and the baking time is 40 minutes, and other steps and parameters thereof are the same as Embodiment 1.

Embodiment 3

[0083] A manufacturing method of a thin-film touch sensor is different from Embodiment 1 in that the baking temperature is 120° C. and the baking time is 60 minutes, and other steps and parameters thereof are the same as Embodiment 1.

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Abstract

The invention relates to the field of touch screens, and particularly provides a manufacturing method of a thin film touch sensor and the thin film touch sensor. The manufacturing method of the thin film touch sensor comprises the following steps that (a) a rigid carrier plate attached with a thin film base material is baked, and the baking temperature is 120-150 DEG C; baking time is 30-60 min; (b) a multi-layer touch circuit is manufactured, and the standing time after soft baking is 2-10 min, the temperature of the exposure table top is 25-35 DEG C; and (c) separating the thin film substrate on which the multi-layer touch circuit is completed from the rigid support plate to obtain the thin film touch sensor. The method can effectively solve the problems of line stacking deviation and low exposure alignment efficiency when a touch sensing layer is manufactured on one thin film, exposure alignment is accurate and high in efficiency, the line stacking deviation is small, the product yield is high, and in addition, a thin film touch sensor can be produced in a sheet mode.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a method for manufacturing a thin-film touch sensor and the thin-film touch sensor. Background technique [0002] Due to the new human-computer interaction method, touch screens have been widely used in mobile phones, tablets, e-books and other products. Currently, touch screens are generally divided into glass touch screens and film touch screens according to the material of the touch screen. Thin-film touch screens are divided into GFF, GF2, GF and other structures. Compared with glass touch screens, thin-film touch screens have the advantages of lightness, thinness, and low cost, and have become the most important touch solution. [0003] GF2 is a touch sensing structure that integrates Tx and Rx circuits on a single-layer film. This single-layer film structure can be less than 50 μm in thickness. It is especially suitable for lamination of curved surfaces of 3D glass, which great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F2203/04103
Inventor 周群飞项小鑫贾成兰
Owner LENS TECH CHANGSHA
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