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Position input device

An input device and electrode technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as damage to the conduction state

Inactive Publication Date: 2010-08-04
ROHM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such a structure, when an external force is applied to the wiring 96, the wiring 96 is likely to be separated from the electrode element 941, and there is a problem that an appropriate conduction state is impaired.

Method used

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Experimental program
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Embodiment Construction

[0030] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[0031] figure 1 and figure 2 An electrostatic capacitance type position input device according to a first embodiment of the present invention is shown. The input device A1 shown in the figure has a transmissive plate 4 , a shielding layer 5 , a flexible substrate 71 and an IC chip 72 . As will be described later, the input device A1 detects the approach of the finger (conductor) 10 from a change in electrostatic capacitance. The input device A1 is superimposed on the liquid crystal display panel 20 to form a touch panel (touch panel).

[0032] The permeable plate 4 has a flat surface 4a and a back surface 4b parallel to the surface 4a. Such as figure 2 As shown, on the surface 4a of the transparent plate 4 are formed: a plurality of first electrodes 1, which are used to detect the position of the finger 10 in the y direction; and a plurality o...

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PUM

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Abstract

The invention provides a position input device, including: a substrate with a surface and a back; a plurality of first electrodes configured parallel to one another, which include a plurality of first electrode components, formed on the surface of the substrate and configured along the first direction; and a plurality of second electrodes configured parallel to one another, which include a plurality of second electrode components, formed on the surface of the substrate and configured along the second direction different from the first direction. The position input device includes a control unit, when the conductor is adjacent to the first and second electrodes in the thickness direction of the substrate, the approach position of the conductor in the first and second directions is detected based on the variation of the electrostatic capacitance in the first and second electrodes. A plurality of first wirings are formed on the substrate, which makes first electrode components constituting any one of the first electrodes are conducted to each other. Any one of the first wirings is formed in the first gap clipped by the adjacent first and second electrode component.

Description

[0001] technology area [0002] The present invention relates to a position input device used for a touch panel (touch panel: touch panel) or the like. Background technique [0003] In the prior art, touch screens are widely used in digital information devices such as automatic deposit and withdrawal machines (ATMs) in banks, automatic ticket vending machines in train stations, or mobile phones. The touch screen is constituted by combining an image display device such as a liquid crystal panel and a position input device. There are various ways of operating a position input device (hereinafter referred to as "input device"). An input device used in a mobile phone employs, for example, a capacitive type. For a small device such as a mobile phone, it is desirable that the input device be as thin as possible. [0004] An example of a method for reducing the thickness of an electrostatic capacitive input device is described in Japanese Registered Utility Model No. 3144241. as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 平塚一幸
Owner ROHM CO LTD
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