Array substrate, display panel and display device

Abstract

An embodiment of the invention relates to the technical field of display and provides an array substrate, a display panel and a display device. The array substrate comprises a display area and a non-display area surrounding the display area, and the display area comprises a plurality of sub-pixels. Each sub-pixel comprises a substrate, a buffer layer and a thin film transistor array, wherein the buffer layer is arranged above the substrate, and the thin film transistor array is arranged on one side, away from the substrate, of the buffer layer and comprises an active layer. Each sub-pixel comprises a transmission area and a reflection area, wherein the reflection area comprises a reflection electrode arranged on one side, away from the corresponding substrate, of the corresponding thin film transistor array. The reflection areas of part of the sub-pixels further comprise pressure sensors, and each pressure sensor is arranged between the corresponding reflection electrode and the corresponding buffer layer. By adoption of the technical scheme, convenience in realization of a narrow bezel of the display device is achieved, and heat radiation performances of the pressure sensors are improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate, a display panel and a display device. Background technique [0002] With the rapid development of display technology, users have higher and higher demands on the performance of display devices, and display panels with touch functions emerge as the times require. In order to provide multiple human-computer interaction methods and multiple touch functions, the display device generally has a touch sensor (Touch Sensor) and a force sensor (Force Sensor). The touch sensor is mainly used to detect the pressing position and whether there is a pressing operation. The sensor is mainly used to detect the pressure when pressing. [0003] In the prior art, the pressure sensor is arranged in the non-display area of ​​the display device. Since the non-display area is located in the frame area of ​​the display device, and since the size of the pressure sensor is la...

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Problems solved by technology

[0003] In the prior art, the pressure sensor is arranged in the non-display area of ​​the display device. Since the non-display area is located in the frame area of ​​the display device, and since the size of the pressure sensor is large (generally 120um*120um), if the size is larger The pressure sensor is set in the non-display area. In order to have space to set the pressure sensor, it is necessary to make the frame area of ​​the display device wider, which is not conducive to the narrow frame of the display device.

Moreover, the pressure sensor is generally composed of multiple strain pressure sensors that are electrically connected. When the pressure sensor is placed in the non-display area, the multiple strain pressure sensors need to be integrated, which is not conducive to the heat dissipation of the pressure sensor, thereby affecting the performance of the pressure sensor. , if the temperature is high, it is easy to cause damage to the pressure sensor

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