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Touch panel

A touch panel and substrate technology, applied in the direction of instruments, electrical digital data processing, input/output process of data processing, etc., can solve problems such as difficult design, a lot of work, etc., and achieve the effect of suppressing distortion and suppressing bending

Active Publication Date: 2010-03-24
GUNZE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, for the T-shaped electrode 58 shown in Patent Document 1, it is difficult to design the T-shaped electrode 58 because the T-shaped size and the like are different.
Especially, when the shape of the electrode 58 is determined by trial and error, a lot of work is required
In addition, the usable area is limited by the electrode 58 protruding most inside the resistive film 14.

Method used

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Embodiment Construction

[0045] Embodiments of the touch panel of the present invention will be described. The touch panel is a five-wire type touch panel in a resistive film method. As is well known, in a five-wire type touch panel, two substrates face each other at a constant interval, and a rectangular resistive film is formed on the facing surfaces of the respective substrates. A spacer is provided between the substrates, and by bending one substrate by pressing it with a finger, the resistive films of the two substrates can be brought into contact. As the substrate, a plastic substrate such as polyester or a glass substrate such as soda glass can be used. For the resistive film, for example, ITO (Indium Tin Oxide: indium tin oxide) or the like can be used. Both the substrate and the resistive film are transparent. In addition, electrodes are formed on any one of the four sides of the resistive film. The present invention is characterized by electrodes. Peripheral circuits and the like other ...

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Abstract

A touch panel such that its electrodes can be easily designed and fabricated, horizontal and vertical equipotential lines having necessary and sufficient uniformity are formed in a resistive film. Thetouch panel (10) has a substrate (12), a rectangular resistive film (14) formed on the substrate (12), and electrode (16) along the four sides of the resistive film (14). The electrode (16) is composed of gaps (20) and divided electrodes (22). The divided electrodes (22) are lined along the sides of the resistive film (14). Both ends of a line of divided electrodes (22) along each side are connected to terminals (18). The divided electrodes (22) have the same shape and arranged repeatedly. The ratio of the length of the end divided electrodes (22) to that of the inner divided electrodes otherthan the end divided electrodes (22) is 0.1:1 to 0.5:1.

Description

technical field [0001] The present invention relates to a touch panel of an input device used in a computer, and more particularly to a five-wire type touch panel. Background technique [0002] As main touch panels, there are a resistive film type, a surface acoustic wave type, a capacitive type, an infrared type, and the like. The resistive film system includes what is called a four-wire system or a five-wire system. For example, a five-wire type touch panel is disclosed in Patent Document 1 and the like. [0003] Figure 16 In the shown five-wire type touch panel, a transparent rectangular resistive film 14 is laminated on the facing surfaces of two substrates 12a, 12b. Although not shown in the figure, the two substrates 12a and 12b are opposed to each other at a constant interval through a spacer. Electrodes 56a, 56b, 56c, 56d ( Figure 17 ). Let the substrate on which the electrodes 56a, 56b, 56c, and 56d be formed be 12a, and the substrate facing it be 12b. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/045G06F3/041
CPCG06F3/045G06F2203/04113
Inventor 板谷尚雄山田勉细江正洋
Owner GUNZE LTD
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