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Touch display device

A touch display device and display panel technology, applied in static indicators, optics, instruments, etc., can solve the problems of a decrease in the signal/noise ratio of a touch panel, poor sensing capability, and interference with a sensing pad sensing signal. , to achieve the effect of reducing signal interference problems, improving signal/noise ratio and sensing capability

Inactive Publication Date: 2012-06-27
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the display panel itself is also a source of signal generation, when a high voltage is applied to the data lines of the display panel, the data lines may be coupled with the sensing pads in the touch panel, which seriously interferes with the sensing received by the sensing pads. test signal
As a result, the signal / noise ratio (SNR) of the touch panel decreases and the sensing ability is not good

Method used

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Examples

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no. 1 example

[0039] figure 1 It is a schematic cross-sectional view of the touch display device according to the first embodiment of the present invention. Please refer to figure 1 , the touch display device 10 includes a touch panel 100 , a display panel 200 , an explosion-proof film 300 and a transparent conductive layer 400 . The explosion-proof film 300 is disposed between the touch panel 100 and the display panel 200 . The transparent conductive layer 400 is disposed between the display panel 200 and the explosion-proof film 300 . In this embodiment, the touch display device 10 further includes a first adhesive layer 500 and a second adhesive layer 600 .

[0040] The touch panel 100, for example, includes a substrate 110 and a plurality of first sensing pads 120 disposed on the substrate 110, a plurality of second sensing pads (not shown), a plurality of first bridge lines 122, a plurality of second The bridge line 132 , the fan-out line 140 , the black frame 150 , the patterned p...

no. 2 example

[0048] figure 2 It is a schematic cross-sectional view of a touch display device according to a second embodiment of the present invention. Components of the touch display device 10' and figure 1 The components and structures of the touch display device 10 are substantially the same, and the differences will be described below. In this embodiment, the transparent conductive layer 400 is disposed between the display panel 200 and the explosion-proof film 300 , and the transparent conductive layer 400 is disposed between the display panel 200 and the second adhesive layer 600 , for example. In this embodiment, the transparent conductive layer 400 is, for example, formed on the first polarizer 240 of the display panel 200 . Specifically, after disposing the transparent conductive layer 400 on the display panel 200, the explosion-proof film 300 and the touch panel 100 are bonded through the first adhesive layer 500, and then the explosion-proof film 300 and the touch panel 100 ...

no. 3 example

[0052] image 3 It is a schematic cross-sectional view of a touch display device according to a third embodiment of the present invention. Please refer to image 3 , the touch display device 20 includes a touch panel 100 , a display panel 200 , a transparent substrate 700 and a transparent conductive layer 400 . The transparent substrate 700 is disposed between the touch panel 100 and the display panel 200 . The transparent conductive layer 400 is disposed between the transparent substrate 700 and the display panel 200 . In this embodiment, the touch display device 20 further includes a first adhesive layer 500 and a second adhesive layer 600 . In this embodiment, the components of the touch panel 100 and the display panel 200 can refer to those described in the first embodiment, and will not be repeated here.

[0053] In this embodiment, the transparent conductive layer 400 is, for example, formed on the transparent substrate 700 . The transparent substrate 700 may be a ...

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Abstract

The invention discloses a touch display device, which comprises a touch panel, a display panel, an anti-explosive film and a transparent conductive layer, wherein the anti-explosive film is arranged between the touch panel and the display panel, and the transparent conductive layer is arranged between the display panel and the anti-explosive film. The invention improves the signal / noise ratio of the touch display device and sensing ability.

Description

technical field [0001] The present invention relates to a display device, and in particular to a touch display device. Background technique [0002] With the advancement of display technology, people can make their lives more convenient with the assistance of displays. In order to achieve the characteristics of lightness and thinness of displays, flat panel displays (FPDs) have become the current mainstream. In recent years, all kinds of electronic products are constantly moving towards the direction of easy operation, small size and large screen size, especially portable electronic products have stricter requirements on volume and screen size. Therefore, many electronic products integrate the touch-sensitive design with the display panel, so as to omit the space required for the keyboard or control buttons, thereby expanding the configurable area of ​​the screen. [0003] Generally speaking, a touch display panel includes a display panel and a touch panel, wherein the touc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G06F3/044
CPCG02F1/13338G06F3/041G02F1/133G06F3/044G06F2203/04103G06F3/0443G06F3/0446
Inventor 廖金阅李秉寰金崇硕郭威宏李锡烈
Owner AU OPTRONICS CORP
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