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Touch panel and touch display device using same

A touch panel and touch electrode technology, applied in the input/output process of data processing, instruments, calculations, etc., can solve problems such as inaccurate alignment and different visual effects, and achieve the effect of avoiding inconsistent visual effects

Active Publication Date: 2022-04-15
INTERFACE TECH CHENGDU CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When preparing the touch display device, when the substrate with touch electrodes is attached to the display panel, misalignment of the attachment (biased attachment) is likely to occur, resulting in the attachment of some blank areas of the substrate without touch electrodes. In the display area, in this way, most areas of the display area are provided with touch electrodes, while a small amount of areas do not have touch electrodes, and these two areas will observe significantly different visual effects

Method used

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  • Touch panel and touch display device using same
  • Touch panel and touch display device using same
  • Touch panel and touch display device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see figure 1 with figure 2 , the touch display device 100 of this embodiment includes a transparent cover 40 , a display panel 20 , and a touch panel 10 located between the transparent cover 40 and the display panel 20 . An optically transparent adhesive 30 is provided between the transparent cover 40 and the touch panel 10 so that the transparent cover 40 and the touch panel 10 are integrated, and an optically transparent adhesive 30 is also provided between the display panel 20 and the touch panel 10 for The display panel 20 is integrated with the touch panel 10 .

[0040] see figure 2 , in this embodiment, the touch panel 10 includes a substrate 11 and touch electrodes 13 located on opposite surfaces of the substrate 11 .

[0041] The substrate 11 is transparent, electrically insulating, flexible and bendable, for example, its material may be polyethylene terephthalate (PET). The area size of the substrate 11 is larger than the size of the display panel 20 . T...

Embodiment 2

[0051] see Figure 5 , the touch display device 200 of the second embodiment, which includes a transparent cover 40 , a display panel 20 , and a touch panel 10 located between the transparent cover 40 and the display panel 20 . An optically transparent adhesive 30 is provided between the transparent cover 40 and the touch panel 10 so that the transparent cover 40 and the touch panel 10 are integrated, and an optically transparent adhesive 30 is also provided between the display panel 20 and the touch panel 10 for The display panel 20 is integrated with the touch panel 10 .

[0052] In this embodiment, the touch panel 10 includes a substrate 11 and touch electrodes 13 located on a surface of the substrate 11 . The touch electrode 13 is a single-layer self-capacitance for sensing the touch position. The substrate 11 is flexible and bendable, and its area size is larger than that of the display panel 20 . The substrate 11 includes a main body portion 111 stacked on the display...

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PUM

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Abstract

A touch panel, comprising: a light-transmitting and flexible and bendable substrate, which includes a main body and at least one bending portion extending from the edge of the main body; touch electrodes, arranged on the main body and a dummy electrode disposed on the surface of the bending portion, the touch electrodes and the dummy electrodes are both in the shape of a metal grid formed by crossing a plurality of metal wires. The present invention also provides a touch display device using the above touch panel. In the embodiment of the present invention, dummy electrodes are also provided on the bent portion of the substrate. When attaching the touch panel to the display panel, even if the sticking is biased or crooked, no obvious visual effect will appear in the touch display area. Inconsistent issues.

Description

technical field [0001] The invention relates to a touch panel and a touch display device using the same. Background technique [0002] An existing touch display device includes a transparent cover, a display panel, and a substrate between the transparent cover and the display panel. Touch electrodes are formed on the surface of the substrate to sense the touch position. The substrate is flexible and bendable, and its area size is larger than that of the display panel. The substrate includes a main body laminated on the display panel and a bent part protruding from the display panel, wherein the bent part is bent relative to the main body and attached to the side of the display panel and partially covers the surface of the display panel away from the transparent cover. Usually, the touch electrodes are formed on the main part of the substrate, and no electrodes are formed on the bent part. When preparing the touch display device, when the substrate with the touch electrodes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F2203/04102G06F2203/04103
Inventor 叶佳锜陈柏林黄彦衡张轩满鄞闵慧
Owner INTERFACE TECH CHENGDU CO LTD