Driving circuit, touch displaying panel and touch displaying device

A technology of a touch display device and a driving circuit, which is applied to static indicators, instruments, etc., can solve the problems of large frame area and non-compliance with narrow frame, etc.

Active Publication Date: 2015-04-22
XIAMEN TIANMA MICRO ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing touch display devices have a large frame area,

Method used

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  • Driving circuit, touch displaying panel and touch displaying device
  • Driving circuit, touch displaying panel and touch displaying device
  • Driving circuit, touch displaying panel and touch displaying device

Examples

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] As mentioned in the background, the existing touch display device has a large frame area, which does not meet the requirement of a narrow frame. Specifically, in existing touch display devices, a touch driving circuit is usually fabricated in the frame area of ​​the touch display panel to scan the touch driving electrodes. However, the frame area of ​​the touch display panel is limited, and the frame area of ​​the touch display device has been occupied ...

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Abstract

The invention discloses a driving circuit, a touch displaying panel and a touch displaying device. The middle portions of all scanning circuits of the driving circuit are divided into multiplex scanning circuits. The scanning circuits comprise shifting deposit modules, logic modules and buffering modules. The multiplex scanning circuits further comprise selecting output modules. The driving circuit further comprises a plurality of switching modules and a plurality of signal transmission modules. When the touch displaying devices are at a displaying scanning stage, the switching module and the signal transmission module transmit signals from a first-level scanning circuit to an <N>th-level scanning circuit, and gate line scanning signals are output through the selecting output modules. When the touch displaying device is in a touch scanning stage, the switching modules and the signal transmission modules transmit signals from a first-level multiplex scanning circuit to an <M>th multiplex scanning circuit, and touch driving electrode scanning signals are output through the selecting output modules. According to the technical scheme, the frame width of the touch displaying panel is reduced, and the requirement for a narrow frame of the touch displaying device is met.

Description

technical field [0001] The present invention relates to the technical field of touch display, and more specifically, to a driving circuit, a touch display panel and a touch display device. Background technique [0002] With the continuous development of electronic information technology, touch display devices have become an indispensable part of people's life, work and study. The frame area of ​​the existing touch display device is large, which does not meet the requirement of a narrow frame. Contents of the invention [0003] In view of this, the present invention provides a driving circuit, a touch display panel and a touch display device, by multiplexing part or all of the scanning circuits for scanning gate lines in the touch display device as scanning touch driving electrodes The touch driving circuit does not need to be separately manufactured in the frame area of ​​the touch display panel, thereby reducing the frame width of the touch display panel and meeting the ...

Claims

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Application Information

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IPC IPC(8): G09G3/20
Inventor 吴常志杨康鹏许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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