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Touch display panel and electronic equipment

A touch display panel and touch display unit technology, applied in static indicators, electrical digital data processing, instruments, etc., can solve the problems that affect the display panel to scan the liquid crystal display, and the touch display panel cannot complete the scan normally, to achieve Improve the yield rate, solve the pressure drop problem, and increase the effect of synchronization

Active Publication Date: 2015-04-08
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the double-sided scanning method, it is necessary to lay out the same scanning circuit on both sides of the display panel to scan the same driving electrode synchronously. In this way, as long as one side of the scanning circuit fails, the entire touch display panel cannot be scanned normally; Scanning, or double-sided cross-scanning, since the touch driving signal / VCOM signal is only supplied from one side, a voltage drop will be generated at the far end of the driving electrode, which will affect the scanning of the touch display panel and the liquid crystal display (Liquid Crystal Display, LCD) normal display

Method used

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  • Touch display panel and electronic equipment
  • Touch display panel and electronic equipment
  • Touch display panel and electronic equipment

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Embodiment Construction

[0019] 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 creative efforts fall within the protection scope of the present invention.

[0020] The scanning circuit generally includes three modules: a shift register module, a multiplex gate module, and an output module. Connection, touch drive signals and display VCOM signals are output from the IC chip and pass through the above three modules in sequence, and finally transmitted to the drive electrodes. Such as figure 1 Shown is a simplified structure diagram of a touch display panel 1 provided by an embodiment of the present invention, which incl...

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PUM

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Abstract

The invention discloses a touch display panel, which comprises a touch display unit and a driving circuit unit, wherein the driving circuit unit is positioned around the touch display unit, the touch display unit comprises a touch driving electrode, the driving circuit unit comprises a first driving circuit unit and a second driving circuit unit, the first driving circuit unit and the second driving circuit unit are respectively and electrically connected with the two ends of the touch driving electrode, and the first driving circuit unit is electrically connected with the second driving circuit unit through a first connecting line. The touch display panel disclosed by the embodiment has the advantages that the scanning and driving can be performed at the single side, and the signal transmitting can be performed at both sides; on the basis of improving the qualified rate, the synchronism of signals is improved, and the problem of voltage drop is solved.

Description

technical field [0001] The invention relates to touch display technology, in particular to a touch display panel and electronic equipment. Background technique [0002] With the rapid development of display technology in recent years, by installing a touch device on a display device such as a liquid crystal display device or integrating a touch device with a display device and replacing the usual mechanical buttons, various button images, etc. are displayed on the Among display devices, touch display devices that enable input of information have attracted attention. Since touch display devices do not require input devices such as keyboards, mice, and keypads, the use of such touch display devices tends to be extended to portable information terminals such as mobile phones. [0003] For touch display panels, scanning circuits are usually arranged around the display panel. There are three commonly used connection methods. One is to use independent wiring on both sides of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G09G3/36
CPCG06F3/0412G09G3/20G09G3/36G09G2300/023G09G2300/0426G09G2310/0291G09G2320/0223G06F3/044G09G2310/0286G06F3/04164G09G3/22
Inventor 翟应腾吴勇
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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