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Touch sensor

A touch sensor and sensor sheet technology, which is applied to instruments, electrical digital data processing, electrical components, etc., can solve the problems of increased resistance, decreased detection accuracy, poor operability, etc., and can suppress the increase of line resistance, Ease of installation and improved operability

Active Publication Date: 2016-11-16
SEKISUI POLYMATECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in addition to poor operability, when the resin film is forcibly bent and then assembled, the resistance value of the bent line part of the touch sensor tends to increase, and the detection accuracy decreases.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0046] The first embodiment ( Figure 1 to Figure 4 )

[0047] Described in this embodiment image 3 The illustrated touch sensor 11 a has a curved edge, but the description starts from the state before bending. figure 1 A plan view of the planar touch sensor 10 is shown. In this touch sensor 10, a plurality of sensing electrodes 13 ( figure 1 There are 5 of them), the wires 14 extending from each sensing electrode 13, and the connection part 15 where the wires 14 are gathered and connected to the circuit board.

[0048] The sensor sheet 12 has a rectangular main body 12 a provided with a sensor electrode 13 , and a tail 12 b protruding from the main body 12 a and provided with a terminal 15 . The rectangular body part 12a is formed with an electrode forming part 12c on which the sensing electrode 13 is formed and an edge part 12d which is located outside the electrode forming part 12c and has a line 14 formed thereon. The tail part 12b is a part of the sensor sheet 12 ...

Deformed example 1～3

[0073] Variations 1 to 3 ( Figure 5 ~ Figure 7 )

[0074] In the above-mentioned embodiment, the surface (inner surface 12e) on which the circuit 14 is laminated on the sensor sheet 12 is formed as the inner side and the tail portion 12b is bent. This form is called "valley fold". The form in which the surface (outer surface 12 f ) on which the line 14 is laminated is bent as the outer side is called "mountain fold". Figure 5 This is a cross-sectional view of a touch sensor 11 b according to Modification 1 in which a bent portion 20 is formed after mountain folding.

[0075] The touch sensors 11a and 11b are all provided with a protective layer 18 on the same side as the side of the sensor sheet 12 where the circuit 14 is laminated, but the protective layer 18 can also be provided only on the side of the sensor sheet 12 that is provided with the circuit. 14 side opposite side. Figure 6 An example in which the protective layer 18 is provided on the side opposite to the ...

no. 2 Embodiment approach

[0077] The second embodiment ( Figure 8 , Figure 9 )

[0078] refer to Figure 8 and Figure 9 , the touch sensor 21 of this embodiment will be described. in, Figure 8 , Figure 9 Although the planar touch sensor 21 a is shown before the bent portion 20 is formed, the touch sensor 21 may be obtained by forming the bent portion 20 along the folding line 20 a in the same manner as in the first embodiment.

[0079] The touch sensor 21 a of this embodiment is different from the touch sensor 11 of the previous embodiment in that a rectangular extension 16 b is provided instead of the radial extension 16 a as the shape of the extension 16 . The rectangular extended portion 16b is formed on the boundary between the tail portion 12b and the main body portion 12a and is wider than the connection portion 15, and the protective layer 18 is formed in the left and right extending portion of the rectangular portion where no wiring 14 is laid. Therefore, the protective layer 18 ...

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Abstract

The objective of the present invention is to provide a touch sensor used in input manipulations, etc., for various types of electronic devices, configured such that the touch sensor offers superior handleability in that mounting of the touch sensor onto an electronic device is simple. The touch sensor (11) is formed from a sensor sheet (12) provided with a plurality of sensor electrodes (13), wires (14) extending from each of the sensor electrodes (13), and a connection part (15) which connects to a substrate. The sensor sheet (12) comprises a main body part (12a) on which the sensor electrodes (13) are formed, and a tail part (12b) which protrudes from the main body part (12a) and is provided with a terminal (15). A protective layer (18) is layered on at least a portion of the tail part (12b). The sensor sheet (12) is curved at the tail part (12b) where the protective layer (18) has been layered so as to form a kinked bend part (20).

Description

technical field [0001] The present invention relates to a touch sensor used for input operations and the like of various electronic devices. Background technique [0002] At present, while the requirements for miniaturization and space saving of electronic equipment are gradually increasing, there are also requirements for enlarging the operation surface of the electronic equipment and the sensing area of ​​the touch sensor provided on the operation surface. These touch sensors are formed by using a resin film as a base material. An electrode forming part and an edge part are formed in the resin film. The electrode forming part is used as a detection area and a sensing electrode is formed. The extended line and the connection part that is conductively connected with the circuit board. Furthermore, since the wiring or the connecting portion protrudes outwardly from the operation surface, the resin film is bent inwardly and connected to the circuit board. Such a technique is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041H01H36/00
CPCG06F3/04164G06F3/0443G06F3/0446H03K17/9622H03K2217/960755H03K2217/960765H03K2217/96078G06F3/045G06F2203/04103
Inventor 大泽祐太本松良文
Owner SEKISUI POLYMATECH CO LTD