Touch display device and touch device

A technology of a touch display device and a touch device, which is applied to instruments, electrical digital data processing, and the input/output process of data processing. The effect of measuring sensitivity
CN101833404AInactive Publication Date: 2010-09-15AU OPTRONICS CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
AU OPTRONICS CORP
Publication Date
2010-09-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a touch display device and a touch device. The touch display device comprises a display panel and a touch sensing element arranged on the display panel, wherein the touch sensing element comprises sensing electrodes and drive electrodes, the sensing electrodes are arranged in the first direction, the drive electrodes are arranged in the second direction, and the sensing electrodes and the drive electrodes are interlaced with each other to form a plurality of capacitor sensing units; each sensing electrode comprises a principal electrode bar and a plurality of electrode branches connected to the principal electrode bar; the drive electrode in each capacitor sensing unit comprises at least one peripheral electrode bar and at least one inside electrode bar which are interlaced with the electrode branches of the sensing electrode; and each peripheral electrode bar has a first width, the inside electrode bar has a second width in the first direction, and the first width is less than the second width.
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Description

technical field

[0001] The present invention relates to a touch device, and in particular to a capacitive touch device. Background technique

[0002] At present, the commonly used touch technologies for electronic devices are: resistive, surface capacitive, projected capacitive, surface acoustic wave, optics imaging, infrared ( infrared), refraction (bendingwave) and digital conversion (active digitizer), etc. The first three technologies are suitable for smaller portable devices or consumer electronic products because of their small size and relatively high precision.

[0003] As far as resistive touch technology is concerned, there are technical limitations in physical conditions from touching the screen to touch detection, data calculation and position confirmation. For example, contact detection will cause excessive wear and tear in some specific areas due to the constant contact range, which will reduce the conduction efficiency of the conductive film contact. In add...

Claims

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