Touch screen, production method thereof and outer-hanging type touch screen

Abstract

The invention discloses a touch screen, a production method thereof and an outer-hanging type touch screen. On the premise of reducing cost, the problem of bridgepoint vanishing is solved, so that the competitiveness of the product is improved. The production method of the touch screen comprises the following steps: forming an image of a first touch detection electrode on a substrate baseplate; forming an image of a first metal wiring layer at least in electric connection with the first touch detection electrode in a frame area of the substrate baseplate; forming an image of a first insulating layer above the substrate baseplate with the first metal wiring layer; forming an image of a second touch detection electrode on the first insulating layer; forming an image of a second metal wiring layer at least in electric connection with the second touch detection electrode in the frame area of the substrate baseplate.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a touch screen, a manufacturing method thereof, and an external touch screen. Background technique [0002] Since the rise of touch technology, its popularity has become higher and higher. According to different sensing methods, touch screens can be roughly divided into four types: resistive, capacitive, infrared, and acoustic. Among them, resistive and capacitive are currently the most used in the market, and it may be difficult for other technologies to catch up in the short term. With people's recognition of touch experience, capacitive screens are gradually replacing resistive screens. Among them, capacitive touch screens can be divided into mutual capacitive touch screens and self-capacitive touch screens. Because mutual capacitive touch screens can realize multi-touch, mutual capacitive touch screens are called the mainstream and future development trend in the touch screen...

AI Technical Summary

Problems solved by technology

At present, some TP manufacturers have begun to produce single layer on cell (SLOC) products. SLOC products have attracted much attention because of their simple manufacturing process and low manufacturing cost. However, in the process of promoting large-scale production and use Because the touch area and wiring area are made of Indium Tin Oxide semiconductor (Indium Tin Oxides, ITO) material, due to the high square resistance of ITO, the channel impedance is too large, and it is impossible to realize large-scale multi-touch. , unable to be popularized and applied on a large scale; in addition, touch manufacturers reduce the number of masks by using OC materials as insulating layers and designing via holes in OC materials, and solve the problem of shadow disappearance by using ITO bridges instead of metal bridges, so that conventional 6 mask (Mask) becomes 5Mask

However, these designs cannot fundamentally and substantially reduce research and development costs, reduce production costs, improve product comprehensive competitiveness, and solve bridge point visibility problems

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