Touch control type flat-panel display electric pole structure

A flat-panel display and touch electrode line technology, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc. It can solve the problems of complicated control methods, many components, and reduced reliability.

Active Publication Date: 2008-02-06
FOCALTECH ELECTRONICS SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, display driving and touch detection are transmitted on the same group of display electrodes by scanning. For active flat panel displays with high channels, the switching or loading of display driving signals and touch detection signals requires a large number of components and controls. The method is complicated, which may cause the increase of cost and the decrease of reliability

Method used

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  • Touch control type flat-panel display electric pole structure
  • Touch control type flat-panel display electric pole structure
  • Touch control type flat-panel display electric pole structure

Examples

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Embodiment Construction

[0024] One of the embodiments of the present invention is shown in FIG. 1 : a touch-sensitive liquid crystal display 100 for detecting the leakage current of touch electrode lines. The liquid crystal display 100 has a TFT-LCD screen 110, the TFT-LCD screen has a TFT array substrate glass 111 and a common electrode substrate glass 112, and the TFT array substrate glass 111 has N display scanning electrodes 121 and M display signal electrodes 122. N rows of metal touch electrode lines 131 and m columns of metal touch electrode lines 132 are prepared 111 on the glass of the TFT array substrate. The touch electrode lines 131 and 132 have lead-out pins from the same side as the display electrodes 121 and 122 respectively, and the common electrode There is an ITO common electrode 140 on the substrate glass 112 . The display scan electrodes 121 of the liquid crystal display screen 110 are connected to the display driving circuit 151 , the display signal electrodes 122 are connected t...

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Abstract

The present invention relates to a touch-control flat panel display, in particular to a touch-control flat panel display with multiple electrodes. The display screen of the flat panel display has an active device and a display pixel array, as well as a display scan electrode and a signal electrode which are connected with the active device on one piece of a glass substrate, while the other piece of the glass substrate of the display screen has a display common electrode. A touch-control electrode wire which is independent is also prepared on the glass substrate of the flat panel display screen, the touch-control electrode wire is insulated and isolated with the display scan electrode and the signal electrode, as well as the common electrode while not connecting with any active sensing element, the touch-control electrode wire is used especially to detect and transfer the touch-control signal. The method of preparing multiple electrodes on the glass substrate of the flat panel display screen allow the same flat panel display screen to have a display driving electrode wire and a touch-control detecting electrode wire which are separately arranged and provided with independent functions, wherein the display driving electrode wire transfers the display driving signal, and the touch-control detecting electrode wire detects and transfers the touch-control signal, thus combining the display screen with the touch-control screen into a whole.

Description

technical field [0001] The present invention relates to a touch-type active flat panel display, in particular to a multi-electrode touch-type active flat panel display. Background technique [0002] At present, flat panel displays with touch function are composed of display screen, display driver, touch screen, touch signal detector, backlight and other components. The touch screen has resistive, capacitive, electromagnetic, Ultrasonic type and photoelectric type, etc., the display screen includes TN / STN liquid crystal display, TFT liquid crystal display, OLED display, PDP display, carbon nanotube display, etc. A flat panel display with a touch screen is to stack a separate touch screen and a display screen together, detect the plane position of the touch point through the display screen, and then position the cursor on the display screen to follow the touch point. The stacking of the touch screen and the display screen makes the touch panel display thicker and heavier, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 陈其良陈梅英
Owner FOCALTECH ELECTRONICS SHENZHEN CO LTD
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