Capacitance type touch-control panel with improved electrode pattern
A technology of capacitive touch and electrode pattern, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as unfavorable operation of touch panel controllers, increase the usable range, improve Linearity, effect of reducing electrode pattern width
Inactive Publication Date: 2009-02-18
达诺光电股份有限公司
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Problems solved by technology
The electrode pattern is composed of conductive silver circuits (or silver paste lines) arranged on the surface of the conductive layer. The higher the number of transparent electrodes formed by the staggered arrangement of conductive silver circuits and the distribution position is a relatively gentle change trend, the whole touch The charge distribution density of the panel also changes relatively gently, on the contrary, it changes more violently. According to this principle, the linearity of the electric field near the frame area can be corrected; on the other hand, due to the high number of conductive silver lines, it can effectively improve the conductive silver The resistance of the four corners of the road, the smaller the border of the conductive silver road, the lower the resistance, but too low resistance is not conducive to the operation of the touch panel controller
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[0019] First please refer to figure 1 , generally speaking, the capacitive touch panel 10 includes:
[0020] an insulating substrate 20, such as a glass plate;
[0021] A conductive layer 30, formed on the surface of the insulating substrate 20, is commonly a metal oxide layer; and
[0022] An electrode pattern is formed on the surface of the conductive layer 30 and arranged along the edge of the touch panel 10. The electrode pattern further includes: several rows of conductive silver circuits 40 arranged in parallel with each other, and any row of conductive silver circuits 40 has a plurality of etc. Long and equally spaced electrodes 41 are arranged.
[0023] According to the first preferred embodiment of the present invention, the total column number of the conductive silver circuit 40 is represented by X, with figure 2 For example, where the direction relatively close to the center of the touch panel 10 and the direction relatively far away from the center of the touch...
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A capacity touch panel with modified electrode pattern is prepared for forming a conduction layer on surface of insulation substrate, forming electrode pattern being arranged along edge of touch panel on surface of conduction layer and forming electrode pattern by several columns of conductive circuits as each column of conductive circuit being set with multiple equal-length electrode arranged in equal interval.
Description
technical field [0001] The present invention relates to a capacitive touch panel, in particular to a capacitive touch panel with electrode patterns formed on the edge of the touch panel. Background technique [0002] Known touch panels can be classified into four types based on sensing principles: resistive, capacitive, acoustic, and optical. Among them, the resistive touch panel is currently the cheapest and widely used touch panel in the market, but the capacitive touch panel is getting more attention and adoption. [0003] The resistive touch panel is mainly composed of upper and lower two sets of ITO conductive layers. When in use, pressure is used to make the upper and lower electrodes conduct, and the controller measures the panel voltage change to calculate the position of the contact point, and the input position signal can be obtained, for example: The disclosed technology of US Patent No. 4,822,957 is generally applied to the 5-wire resistive touch panel of Elo To...
Claims
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IPC IPC(8): G06F3/044
Inventor 廖荣彬谷福田
Owner 达诺光电股份有限公司