Embedded touch screen, manufacturing method thereof and display device

Abstract

The invention discloses an embedded touch screen, a manufacturing method thereof and a display device. A plurality of touch electrodes which are matrix-arranged and are insulated from one another are arranged on a luminous layer of an OLED panel; gaps among the tough electrodes are positioned in gaps of electroluminescent sub-pixel regions; and each tough electrode covers at least one electroluminescent sub-pixel region and is used as a cathode of the covered electroluminescent sub-pixel regions. The embedded touch screen provided by an embodiment of the invention is based on the OLED panel, after being divided, the cathodes are used as the touch electrodes to realize embedded touch, therefore, the thickness of a touch display device can be reduced, and lightweight design of the product is facilitated. In addition, when the embedded touch screen based on the OLED panel is manufactured, the cathodes which are used as the touch electrodes are formed in an ink-jet printing mode, a manufacturing process of the touch screen based on the OLED panel can be simplified effectively, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of touch display, in particular to an embedded touch screen, a manufacturing method thereof and a display device. Background technique [0002] Organic light-emitting diodes (OLED) is a display device that is packaged and molded using organic materials. It has the advantages of low operating voltage, fast response speed, high luminous efficiency, wide viewing angle and wide operating temperature. It is beneficial to the thinning, low power consumption and curved surface design of the display device. At present, most of the existing OLED-based touch products use such as figure 1 In the shown plug-in touch structure, the OLED display panel 01 and the touch panel 02 are made respectively, and the two panels are bonded together by the adhesive material 03 to form a complete touch display device. This structure will increase the overall thickness of the OLED device , which is not conducive to the thin and light...

AI Technical Summary

Problems solved by technology

At present, most of the existing OLED-based touch products adopt such as figure 1 In the shown plug-in touch structure, the OLED display panel 01 and the touch panel 02 are made separately, and the two panels are bonded together by the adhesive material 03 to form a complete touch display device. This structure will increase the overall thickness of the OLED device , which is not conducive to the thin and light design of the product

[0003] The in-cell touch screen is to set the touch electrodes inside the display panel, and most of them need to divide and punch the film layer. However, the existing OLED materials are relatively strict with water and oxygen conditions. Therefore, most OLEDs currently use Made by vacuum evaporation process, it is very difficult and expensive to carry out via hole and pattern segmentation process in OLED, which is not conducive to the realization of in-cell touch control in OLED

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