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Capacitor type contact panel

A capacitive touch and panel technology, which is applied in the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problem of low charge distribution density, uneven charge density distribution, and affect the size of the touchable area of ​​the panel. and other problems, to achieve the effect of uniform power line distribution and increased touchable area

Inactive Publication Date: 2007-10-03
达诺光电股份有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the above-mentioned invention has improved the poor linearity of the electric field in the prior art, the end point shape of its conductive line segment is rectangular (referring to Fig. 1), and because the distribution of the surface charge of the conductor is related to its surface curvature, the more the surface curvature of the conductor Larger, the higher the distribution density of the charge, on the contrary, the smaller the surface curvature, the lower the distribution density of the charge, so the above-mentioned rectangular shape makes the charge density distribution at the end of the conductive line segment uneven, and the shape of the electric force line is in the frame of the panel The area will change drastically (refer to Figure 4-2), so the linear area of ​​the border area is relatively small, which in turn affects the size of the touchable area of ​​the entire panel

Method used

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  • Capacitor type contact panel
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Embodiment Construction

[0020] First, please refer to FIG. 2 , which discloses a preferred embodiment of the capacitive touch panel proposed by the present invention, which includes: an insulating substrate 10 , a conductive layer 20 , and a plurality of conductive wire segments 30 .

[0021] In this preferred embodiment, the material of the insulating substrate 10 is glass; the insulating substrate 10 is plated with a conductive layer 20, and the conductive layer 20 is generally an antimonytin oxide film (antimonytin oxide; ATO); the edge of the conductive layer 20 is made of Conductive materials such as conductive silver ink, and form a plurality of mutually spaced conductive line segments 30 at the edge of the conductive layer 20 by methods such as printing, etching, vacuum deposition (vacuum deposit), or sputtering (sputtering); and the conductive line segments 30 The area where it is located is covered by a frame (not shown in the figure) of the touch panel, and the middle area except the frame i...

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Abstract

The present invention discloses a capacitance-type touch control panel. It includes an insulating base plate, a conducting layer and several conducting wire parts. Said conducting layer is placed on the insulating base plate, and the conducting wire parts are uniformly distributed along the edge of said conducting layer. Said invention can raise touch control accuracy of touch control panel, and can increase touch control area of said touch control panel.

Description

technical field [0001] The invention relates to a structure of a touch panel, in particular to a structure of a capacitive touch panel. Background technique [0002] In recent years, with the rise of Information Appliance (IA) products, the touch panel (touch panel) has gradually replaced the old way of communicating with information products through keyboards, mice, and its application range has spread to include portable Communication electronics and information products (such as personal digital assistants, PDAs, etc.), financial / commercial systems, medical registration systems, factory monitoring systems, public information navigation systems, and auxiliary teaching systems, etc., have increased consumption due to their simple operation Ease of use. [0003] Touch panels are divided into capacitive, acoustic, infrared, magnetic field induction, and resistive according to their sensing methods; among them, capacitive touch panels are applied to large-size panels, which a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 谷福田黎家俨廖荣彬
Owner 达诺光电股份有限公司