GLASS capacitive touch screen

Abstract

The invention discloses a GLASS capacitive touch screen which comprises a GLASS panel and a sensor layer arranged on one side of the GLASS panel. An adhesive layer is arranged between the GLASS panel and the sensor layer. The GLASS panel is a glass basic layer. Two layers of ITO films are arranged between the GLASS panel and the adhesive layer. A middle separation layer is arranged between the two layers of ITO films and is prepared from silicon dioxide. Each ITO film is divided into a window area and a panel area, and the window areas are located in the middles of the panel areas. ITO line layer are closely attached to the ITO films. The cost of the GLASSS capacitive touch screen is greatly reduced, the overall thickness is smaller than that of other structures, and the design space of a complete machine is greatly expanded. In addition, the GLASS capacitive touch screen is good in use effect, and the service life is guaranteed. Transparent conductive ink is adopted as a conductive layer to be combined with a line bridge on the GLASS panel, the limit that a panel with only one color can be manufactured originally is broken through, the process threshold of color panel GLASS is greatly lowered, panels in various colors can be manufactured, and the use effect is greatly improved.

Description

Technical field [0001] The invention relates to a touch screen, specifically a GLASS capacitive touch screen. Background technique [0002] The capacitive touch screen is a transparent special metal conductive substance affixed to the glass surface. When a finger touches the metal layer, the capacitance of the contact will change, causing the frequency of the oscillator connected to it to change. By measuring the frequency change, the touch position can be determined to obtain information. [0003] With the development and advancement of technology, touch screens are widely used in electronic products such as mobile phones, GPS, and tablet computers. Currently, all projected capacitive touch screens on the market are of LENS+GLASSSENSOR structure and LENS+FILMSENSOR structure. The above structure consists of a top panel (made of GLASS or PET), optical glue, and a bottom SENSOR (the SENSOR material can be ITOFILM or ITOGLASS). [0004] The top panel is made of GLASS or PET...

AI Technical Summary

Problems solved by technology

[0004] The material of the top panel is GLASS or PET, but the bonding process of the GLASS panel and the SENSOR is complex, requiring high-end equipment and bonding materials, which affects production efficiency and capacity, so the cost of the touch screen of the GLASS panel is high, the process is complicated, and the price is low. also quite high

PET material is slightly worse than GLASS panels in terms of appearance, touch texture and surface scratch resistance hardness, which affects the use effect and service life of the touch screen

[0005] In addition, currently on the market for GLASS capacitive touch screens, the circuit bridges are all set on the FPC (flexible circuit board or soft board), but this circuit bridge method has great disadvantages: 1. The circuit bridge is on the FPC, requiring the FPC to have The large design space greatly restricts the structure of the terminal machine; second, the high requirements for FPC production restrict the production efficiency of FPC; third, too many pins lead to the binding of FPC and touch screen, which greatly affects the The binding process and production efficiency of the touch screen also increase the defect rate of the product

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