Built-in touch screen and manufacturing method thereof

Abstract

The invention discloses a built-in touch screen and a manufacturing method thereof. The built-in touch screen comprises a module frame, a reflector plate, a touch control light guiding plate, a lowerdiffuser plate, a prism plate, an upper diffuser plate, an LCD liquid crystal panel, cover plate glass and an LED light source; the module frame comprises a back plate and a side frame; the LED lightsource is arranged on the inner side wall of the side frame; the reflector plate, the touch control light guiding plate, the lower diffuser plate, the prism plate, the upper diffuser plate, the LCD liquid crystal panel and the cover plate glass are sequentially arranged on the upper surface of the back plate; the touch control light guiding plate comprises a light guiding structure plate, grid points, and an ITO transparent touch control film; the grid points are arranged on the lower surface of the light guiding structure plate; the ITO transparent touch control film is arranged on the uppersurface of the light guiding structure plate; and the ITO transparent touch control film is a transparent conductive capacitance touch control film. The built-in touch screen provided by the inventionhas the characteristics of being light and thin in touch screen without affecting the light emission effect and reducing the effective display area, excellent in image quality and uniform in emittedlight.

Description

technical field [0001] The invention relates to an embedded touch screen and a manufacturing method thereof, in particular to an embedded touch screen which is light and thin, does not affect the light output effect, does not need to reduce the effective display area, has excellent image quality, and has uniform light output and the manufacturing method thereof. Background technique [0002] At present, the touch screens used in the market are basically separated touch screens. The so-called separated touch screen means that the touch panel and the LCD panel are produced separately and then assembled together. With the advancement of technology, mobile phones are increasingly pursuing thinner and lighter. If the original external touch panel components can be integrated with the LCD panel, it is possible to achieve thinner and lighter panels, and reduce panel thickness and cost. Many manufacturers are Actively developing an integrated touch screen, also called a built-in tou...

AI Technical Summary

Problems solved by technology

At the same time, it is necessary to embed the matching touch IC, otherwise it will easily lead to wrong touch sensing signals or excessive noise

At present, the threshold of In-Cell / On-Cell touch screen technology is quite high, and the production yield rate is low, because once the In-Cell is damaged, not only the touch screen will be lost, but the display screen will also be scrapped together.

[0007] Therefore, the primary problem is to overcome the difficulty of the full bonding process of the In-Cell touch screen and the low assembly yield.

Images