Touch panel and touch display device applied thereto

A touch panel and display device technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as cumbersome use

Inactive Publication Date: 2011-12-14
WINTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the touch panel senses changes in surface capacitance through the user's fingers, users who need to we...

Method used

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  • Touch panel and touch display device applied thereto
  • Touch panel and touch display device applied thereto
  • Touch panel and touch display device applied thereto

Examples

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Embodiment Construction

[0030] Please refer to figure 1 , which is a schematic diagram of a touch panel according to a preferred embodiment of the present invention. like figure 1 As shown, the touch panel 1 includes a first substrate 10 , a second substrate 12 , a sensing electrode structure 14 and a shielding layer 16 . The first substrate 10 and the second substrate 12 are arranged in parallel. The sensing electrode structure 14 is disposed on the first substrate 10, wherein the sensing electrode structure 14 can be connected to an external object, such as a finger OB 1 or charged stylus, forming the first capacitor C 1 . The shielding layer 16 has a conductive property, it is disposed on the second substrate 12, and is connected to a ground terminal, wherein the shielding layer 16 and the sensing electrode structure 14 form a second capacitance C 2 . The second capacitance C 2 with the first capacitor C 1 The variation value of is used to detect touch actions of external objects.

[0031...

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Abstract

The invention discloses a touch panel and an applied touch display device. The touch panel comprises a first substrate, a sensing electrode structure, a second substrate and a shielding layer, wherein the first substrate and the second substrate are arranged in parallel; the sensing electrode structure is arranged on the first substrate; the sensing electrode structure and an external component form a first capacitor; the shielding layer is formed on the second substrate and is connected to a grounding end; the shielding layer and the sensing electrode structure form a second capacitor; and the variation values of the second capacitor and the first capacitor are used for detecting the touch action of the external component.

Description

technical field [0001] The present invention relates to a touch panel, and in particular to a touch panel and a touch display device applied thereto. Background technique [0002] From iPhone, Surface to Windows 7, multi-touch has become a new human-machine interface replacing keyboard and mouse. In order to realize the multi-touch function, it is technically necessary to integrate touch sensing and control, hardware driver and application program man-machine interface design, but the most important thing is to have a suitable touch panel to achieve it. At present, touch panels are widely used, including (1) portable information, consumer electronics and communication products (2) financial or commercial applications (3) industrial applications (4) public information applications, etc. [0003] At the current stage, touch technology is undoubtedly the most popular product, with its advantages of multi-touch, long life, high penetration, etc., making touch technology have th...

Claims

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Application Information

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IPC IPC(8): G06F3/045
Inventor 王文俊廖文堆许景富赖志章
Owner WINTEK CORP
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