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Array substrate, touch display panel, touch pressure detection method and display device

A technology of touch display panel and array substrate, which is applied in the direction of instrument, electrical digital data processing, input/output process of data processing, etc., can solve the problems of low detection accuracy and the like

Active Publication Date: 2016-06-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an array substrate, a touch display panel, a touch pressure detection method, and a display device, which solve the problem of low detection accuracy when a pressure-sensing capacitor is used to detect touch pressure

Method used

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  • Array substrate, touch display panel, touch pressure detection method and display device
  • Array substrate, touch display panel, touch pressure detection method and display device
  • Array substrate, touch display panel, touch pressure detection method and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] In this embodiment, the touch pressure can be detected by the light sensing element 30 without detecting the touch position.

[0070] Specifically, the above step S102 may include:

[0071] First, the photosensitive element 30 outputs an initial current I to the read signal lines (DL1, DL2...DLm) 1 and store. Among them, the above initial current I 1 is the current value output by the photosensitive element 30 when the user touches and does not press the touch display panel 01 .

[0072] Specifically, such as Figure 5b As shown, since the ridge line is in contact with the touch display panel 01, and there is a gap H between the valley line and the touch display panel 01, it can be considered that the photosensitive element 30 in the pixel unit 21 at the position covered by the ridge line does not receive to the light, so the initial current I output by the photosensitive element 30 to the read signal line (DL1, DL2, DL3 or DL4) 1 It is represented by 0, and the ph...

Embodiment 2

[0082] In this embodiment, the touch position can be detected by the light sensing element 30, and only the touch pressure of the touch position can be detected.

[0083] Specifically, such as Figure 4 As shown, when each pixel unit 21 is provided with a photosensitive element 30, and the photosensitive elements 30 in the same row are connected to the same scanning signal line (S1, S2... or Sn), the photosensitive elements in the same column When the same read signal line (DL1, DL2...or DLm) is connected, the current current I is output from the photosensitive element 30 to the read signal line (DL1, DL2...DLm). 2 And before storing, the above method also includes:

[0084] First, at least two rows of scanning signal lines are constituted as Figure 7 The scan signal group 40 shown, where Figure 7 One scan signal group 40 is composed of four rows of scan signal lines, and the scan signal group 40 is as Figure 9 As shown, they are turned on one by one, so that the photos...

Embodiment 3

[0091] In this embodiment, when the touch display panel 01 includes such as Figure 6a with Figure 6b In the case of the touch element 33 shown, the touch position can be detected through the touch element 33, and only the touch pressure of the touch position can be detected.

[0092] Specifically, the photosensitive element 30 outputs the current current I to the reading signal line (S1, S2...or Sn) 2 And before storing, the above method also includes:

[0093] The touch position is detected by the touch element 33 . Specifically, it can be used as Figure 6a As shown, the mutual capacitance touch capacitance can be formed by the touch sensing electrode RX and the touch driving electrode TX, or it can be adopted as Figure 6b As shown, a self-capacitive touch capacitor is formed by the touch electrodes, and the touch position is detected according to the change of the capacitance.

[0094] Next, for the initial current I 1 with current current I 2 The current change v...

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Abstract

The embodiment of the invention provides an array substrate, a touch display panel, a touch pressure detection method and a display device and relates to the technical field of display. The invention aims to solve the problem of low detection precision when a pressure induction capacitor is used for detecting the touch pressure. The array substrate comprises a plurality of sub pixels and photo-sensors located in the sub pixels; the photo-sensors are respectively connected with a first voltage end and a scanning signal wire and a reading signal wire which are horizontally and vertically crossed; the photo-sensors are started under the control of the scanning signal wire and the first voltage end, so as to detect the touch pressure through photoelectric conversion, and a detection result is output through the reading signal wire.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate, a touch display panel, a touch pressure detection method, and a display device. Background technique [0002] Touch display devices are more and more used in the field of display technology in various industries. When a user touches the touch screen of the touch display device with a finger, the touch display device can sense the touch position of the finger within the plane of the touch screen. , and the touch pressure of the finger, so that the user can realize human-computer interaction only by touching the pattern or text on the touch screen. [0003] Touch display devices in the prior art, such as mobile phones such as figure 1 As shown, it includes a mobile phone middle frame 11 and a touch screen 10 installed on the mobile phone middle frame 11 . In order to detect the touch pressure of the finger, the above-mentioned mobile phone further inc...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/0414G06F2203/04105
Inventor 刘英明董学陈小川王海生丁小梁安喜君杨明李昌峰赵卫杰杨盛际邓立广刘伟王鹏鹏赵静
Owner BOE TECH GRP CO LTD
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