Touch substrate and display device

Abstract

The invention provides a touch substrate and a display device. The touch substrate comprises a base, a plurality of first touch units and a plurality of second touch units, wherein the first touch units and the second touch units are arranged on the base in an array mode. The first touch unit is connected with a first signal line; the second touch unit is connected with a second signal line; wherein an open hole penetrating through the first touch unit and / or the second touch unit is formed in the substrate, the first touch unit penetrated by the open hole is connected with a third signal line, and the third signal line and the first signal line form a double-signal channel of the first touch unit penetrated by the open hole; and / or the second touch unit penetrated by the opening is connected with a fourth signal line, and the fourth signal line and the second signal line form a double-signal channel of the second touch unit penetrated by the opening; therefore, the touch performance around the opening is ensured.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch substrate and a display device. Background technique [0002] Organic Light Emitting Diode (Organic Integrated Circuit Light Emitting Diode, OLED) is an active light-emitting display device, which has the advantages of self-illumination, wide viewing angle, high contrast, low power consumption, wide color gamut, light and thin, and can be shaped. With the continuous development of display technology, OLED technology is increasingly used in flexible displays and transparent displays. Transparent display is an important branch of display technology. It refers to image display in a transparent state. The viewer can not only see the image in the display device, but also see the scene behind the display device, which can realize virtual reality / augmented reality ( Virtual Reality / Augmented Reality, VR / AR) and 3D display functions. [0003] At present, the touch substr...

AI Technical Summary

Problems solved by technology

[0005] For the AA Hole screen solution, the touch substrate has the problem of poor touch performance around the hole

The current solution one: avoid the position of the opening by designing the touch bridge point, and use the integrated circuit to perform optimization algorithm processing to realize the touch function at the surrounding position of the opening. This solution requires higher performance of the integrated circuit and increases power consumption. At the same time, due to the avoidance of the design of the touch bridge point, the area of ​​the touch unit adjacent to the opening is small, and the channel impedance increases, which seriously affects the transmission of the channel signal.

Solution 2: The touch bridge point is not designed for avoidance, and the part of the bridge point dug out by the opening realizes the connection of the channel through a special bridging structure design. This solution basically sacrifices the touch function near the opening position, and the special frame The bridge structure also has the risk of electrostatic discharge (ESD), and there is also the problem that the channel impedance increases, which affects the signal transmission of the channel

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