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Touch panel, driving method thereof and touch display device

A technology of touch panel and touch drive, which is applied in the fields of instruments, computing, electrical digital data processing, etc., and can solve the problems of low physical resolution of touch panel and low precision of touch position detection

Pending Publication Date: 2020-12-15
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a touch panel, its driving method, and a touch display device to solve the problem that the physical resolution of the existing touch panel is relatively low. If an active pen is used to touch the touch panel, it will cause touch The problem of low position detection accuracy

Method used

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  • Touch panel, driving method thereof and touch display device
  • Touch panel, driving method thereof and touch display device
  • Touch panel, driving method thereof and touch display device

Examples

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Embodiment 1

[0037] refer to figure 1 , showing a schematic structural diagram of a touch panel according to an embodiment of the present invention, figure 2 A schematic structural diagram of another touch panel according to an embodiment of the present invention is shown.

[0038] An embodiment of the present invention provides a touch panel 10, including: a plurality of first touch electrodes 11 distributed along a first direction and a plurality of second touch electrodes 12 distributed along a second direction, the first touch electrodes 11 are respectively connected to a first touch lead, and the second touch electrodes 12 are respectively connected to a second touch lead; the touch panel also includes a plurality of third touch electrodes 13 distributed along the first direction and / or along the A plurality of fourth touch electrodes 14 distributed in the second direction, the third touch electrodes 13 are all arranged between two adjacent first touch electrodes 11, and the fourth ...

Embodiment 2

[0081] refer to image 3, which shows a flow chart of a method for driving a touch panel according to an embodiment of the present invention, which is applied to drive the touch panel 10 described in Embodiment 1 above, and may specifically include the following steps:

[0082] Step 301, detecting whether the touch panel is in an active pen touch mode.

[0083] In the embodiment of the present invention, the touch panel 10 has two modes, namely the active pen touch mode and the non-active pen touch mode. First, it is necessary to detect whether the touch panel 10 is in the active pen touch mode.

[0084] The active pen is provided with a power switch. When the active pen is used to touch the touch panel 10, the power switch on the active pen needs to be turned on. When the power switch on the active pen is turned on, a signal will be sent to the touch panel 10. , then the touch panel 10 determines the mode in which the touch panel 10 is in according to the signal whether the ...

Embodiment 3

[0101] An embodiment of the present invention also provides a touch display device, including an active pen, a touch driver chip, and the above touch panel 10; wherein the active pen is configured to, when the touch panel 10 is in the active pen touch mode, The touch panel 10 provides a first driving signal; the first touch lead, the second touch lead, the third touch lead and the fourth touch lead are all connected to the touch drive chip.

[0102] For the specific description of the touch panel 10 , reference may be made to the description of the first embodiment, which will not be repeated in this embodiment of the present invention.

[0103] In addition, the touch display device further includes a display panel, a TCON (Timer Control Register, timing controller), a gate driver chip, a source driver chip, etc., and the touch panel 10 can be disposed on the light emitting side of the display panel.

[0104] In practical applications, the touch display device can be any produ...

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Abstract

The invention provides a touch panel, a driving method thereof and a touch display device, and relates to the technical field of touch. A plurality of first touch electrodes distributed in the first direction and a plurality of second touch electrodes distributed in the second direction are arranged in a touch panel, a plurality of third touch electrodes and / or a plurality of fourth touch electrodes are further arranged, and the third touch electrodes are arranged between every two adjacent first touch electrodes. Fourth touch electrodes are arranged between every two adjacent second touch electrodes; the plurality of third touch electrodes is divided into at least one group, the third touch electrodes in the same group are connected with the same third touch lead, the plurality of fourthtouch electrodes are divided into at least one group, and the fourth touch electrodes in the same group are connected with the same fourth touch lead. By adding the plurality of third touch control electrodes and / or the plurality of fourth touch control electrodes in the touch control panel, the physical resolution of the touch control panel is improved, so that the detection precision of a touchcontrol position during touch control of the active pen is improved.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch panel, a driving method thereof, and a touch display device. Background technique [0002] With the continuous development of display technology, display devices such as mobile phones, tablet computers, digital cameras, and smart wearable products with touch functions have attracted more and more attention. In addition to being able to use finger touch, touch panels can also Use the active pen for touch. [0003] At present, touch panels generally include touch driving electrodes and touch sensing electrodes. Due to the specifications of the touch driving chip and the design of the wiring space, the number of touch driving electrodes and touch sensing electrodes in the touch panel is relatively small, such as 8 An electronic product with a size of 156mm×131mm, which includes 38 touch driving electrodes and 32 touch sensing electrodes, corresponds to a physical res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0441G06F3/0445G06F3/0446
Inventor 张云鹏陈静郭岩
Owner BOE TECH GRP CO LTD
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