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A touch display panel and a touch display device

A touch display panel, touch position technology, applied in instruments, computing, electrical and digital data processing, etc., can solve the problems of reduced touch sensitivity, scan signal attenuation, etc., so as to improve touch sensitivity, reduce scan signal attenuation, and reduce production costs. Effect

Active Publication Date: 2017-05-03
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional displays that can only provide display functions, displays using touch screens can enable information interaction between users and display control hosts. Therefore, touch screens can completely or at least partially replace commonly used input devices. Some displays can not only display, but also touch control. However, the existing touch screens have the problem of attenuation of scanning signals when performing touch scanning, resulting in reduced touch sensitivity.

Method used

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  • A touch display panel and a touch display device
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  • A touch display panel and a touch display device

Examples

Experimental program
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Effect test

Embodiment 2

[0024] Such as image 3 As shown, the touch display panel provided by the embodiment of the present invention includes N groups of first direction wire groups, and each group of first direction wire groups includes at least two first direction wire groups 32; in the specific embodiment of the invention, N =3, the two first direction wires 32 in each first direction wire group are electrically connected to form a first direction coil, which are respectively the first first direction coil B1, the second first direction coil B2 and the second first direction coil B2 Three first-direction coils B3; M groups of second-direction wire groups insulated and intersected with N groups of first-direction wire groups, each group of second-direction wire groups includes at least two second-direction wires 31, the specific implementation of the present invention In the example, M=3, the two second direction wires 31 in each second direction wire group are electrically connected to form a sec...

Embodiment 3

[0031] Such as Figure 4 As shown, the touch display panel provided by the embodiment of the present invention includes N groups of first direction wire groups, each group of first direction wire groups includes at least two first direction wire groups 12, and N groups of first direction wire groups Insulated and crossed M sets of second direction wire groups, each group of second direction wire groups includes at least two second direction wires 11, and the touch display panel also includes a first drive detection circuit 1, a second drive detection circuit 2. The third drive detection circuit 3, the fourth drive detection circuit 4, and the control line 25 for controlling the switching states of the first switch 26 and the second switch 27, wherein the two first direction wire groups in each first direction wire group The first direction wires 12 are electrically connected through the first switch 26 to form a first direction coil; the two second direction wires 11 in each s...

Embodiment 4

[0042] An embodiment of the present invention is also a touch display device (not shown), including a touch display panel, wherein the touch display panel adopts the touch display panel described in Embodiments 1, 2, and 3, wherein the embodiment The touch display panels described in 1, 2, and 3 all include a first substrate (not shown) and a second substrate (not shown), and a pixel electrode ( not shown) and a common electrode (not shown), the pixel electrode and the common electrode form an electric field perpendicular to the touch display panel, or the pixel electrode and the common electrode form an electric field parallel to the touch The electric field of the display panel. In the touch display panel described in Embodiments 1, 2, and 3, the first-direction wires and the second-direction wires are respectively gate lines, data lines, common electrodes, common electrode lines, or conductive black matrix, and the first The directional wire and the second directional wire...

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PUM

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Abstract

The invention discloses a touch display panel and a touch display device. The touch display panel comprises N first-direction lead groups and M second-direction lead groups, each first-direction lead group comprises at least two first-direction leads, the second-direction lead groups are insulated and crossed with the first-direction lead groups, and each second-direction lead group comprises at least two second-direction leads. During touch detection, any two of the first-direction lead groups as well as any two of the second-direction lead groups are different in scanning frequency, and both the M and the N are positive integers larger than or equal to 2. The touch display panel and the touch display device have at least one of the advantages that energy consumption can be saved, scanning signal attenuation can be reduced, touch flexibility is improved, the touch display panel is simplified, the touch display device is thinned, manufacturing procedures are simplified, and production cost is reduced.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a touch display panel and a touch display device. Background technique [0002] With the rapid development of display technology, touch screens (Touch Panel) have gradually spread throughout people's lives. Compared with the traditional display that can only provide display functions, the display using the touch screen can enable information interaction between the user and the display control host. Therefore, the touch screen can completely or at least partially replace the commonly used input device. Some displays can not only display, but also be controlled by touch. However, the existing touch screens have the problem of attenuation of scanning signals when performing touch scanning, resulting in reduced touch sensitivity. Contents of the invention [0003] In view of this, the present invention provides a touch display panel and a touch display device. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 李嘉灵杜凌霄卢峰马骏
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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