Button structure for touch screen and touch screen

Abstract

The invention discloses a key structure for a touch screen. The key structure comprises a substrate made of an insulating transparent material, wherein a key area is formed close to one end of the substrate, a key circuit layer is arranged in the key area, a first insulating protective layer covers the outer surface of the key circuit layer, the key circuit layer comprises at least one sensing key made of a conductive material and a plurality of connecting terminals connected with the sensing keys, and the connecting terminals extend out of the first insulating protective layer and are electrically connected with a key flexible circuit board. The key structure can replace virtual keys in the touch screen and avoid the interference of external signals. In addition, the invention further relates to a touch screen using the key structure.

Description

technical field [0001] The invention relates to a touch technology, in particular to a key structure for a touch screen and a touch screen using the key structure. Background technique [0002] Touch screen is a new type of human-computer interaction input device developed in recent years. It has been widely used in people's life and work because of its advantages of conforming to the human body's usage habits and vivid and intuitive operation interface. For example, It is widely used in mobile phones, navigation devices, bank ATM machines, displays, medical equipment, and public information inquiry equipment. [0003] A traditional touch screen usually includes a touch panel and a liquid crystal panel. The touch panel and the liquid crystal panel are manufactured separately, and the touch panel and the liquid crystal panel are bonded together after they are manufactured separately. Among them, the touch panel is for the user to operate and capture the user's operation sign...

AI Technical Summary

Problems solved by technology

[0004] With the development of touch screens to light and thin technology, in order to meet the needs of consumers, in recent years, two structural forms of touch screens, ON-CELL or IN-CELL, have appeared; the two structural forms of touch screens are both It is to directly make the touch circuit on the surface or inside of the LCD panel, and then attach it to the glass cover; because the surface space of the liquid crystal panel is generally small, after the touch circuit is made, it is impossible to further make touch buttons; The method is to display the virtual button structure on the LCD panel through the software compiled by the controller. Because when using the touch screen, the LCD panel needs to display the virtual button, which also takes up the use space of the LCD panel, resulting in the display of the LCD panel. Space shrinks; therefore, how to expand the effective display area of ​​this type of LCD panel is still a difficult problem for R&D technicians

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