Touch display panel, manufacturing method thereof, and touch display device

Abstract

The invention provides a touch display panel, a manufacturing method thereof and a touch display device. The touch display panel comprises a first substrate, a second substrate, a nano metal grating, an organic light emitting layer and a phase difference piece, wherein the first substrate and the second substrate are arranged oppositely, the nano metal grating is located at the position, away from or close to one side of the second substrate, of the first substrate, the organic light emitting layer is located at the position, close to one side of the first substrate, of the second substrate, and the phase difference piece is located between the nano metal grating and the phase difference piece; a round polaroid is formed by the phase difference piece and the nano metal grating, and the nano metal grating is divided into at least one grating unit communicated mutually to form a touch sensor. The purpose of integrating the round polaroid and the touch sensor is achieved, the thickness of the displayer is reduced, manufacturing cost is reduced, and adverse factors caused by polaroid can be avoided, for example, the polaroid is prone to being affected with damp.

Description

technical field [0001] The present invention relates to the field of flat panel display, in particular to a touch display panel, a manufacturing method thereof, and a touch display device. Background technique [0002] The touch display can be operated only by the user touching the graphics or text on the display with his finger, which makes the human-computer interaction more straightforward. Today, touch displays have been widely used in the field of display technology. [0003] OSG (One Glass Solution, integrated touch) technology is an important touch technology. An OSG touch display generally includes a touch screen and a display screen. When the display screen is an OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display screen, in order to reduce the influence of external light on the OLED display screen, a circular polarizer is generally arranged between the touch screen and the OLED display screen. Although this structure It can effectively elim...

AI Technical Summary

Problems solved by technology

When the display screen is an OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display screen, in order to reduce the influence of external light on the OLED display screen, a circular polarizer is generally arranged between the touch screen and the OLED display screen. Although this structure It can effectively eliminate the influence of the outside world on the OLED display, but it increases the overall thickness, which is not conducive to the thinning of the device, and the centerline part of the polarizer (PVA layer) is easily affected by the humid environment, which affects the display effect of the display.

And the touch screen will increase the thickness of the display device, increase the process and manufacturing cost

[0004] In the prior art, in order to meet the thinning requirements of products, the touch control circuit is generally placed inside the display panel (oncell), or the touch control circuit is placed on the display panel (incell), or the touch control circuit is integrated into the polarizer In the glue layer, although the thickness of the display can be reduced to a certain extent, it cannot solve the unfavorable factors such as the polarizer is not easy to be affected by moisture.

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