Capacitive input device
A technology of input devices and electrostatic capacitors, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., can solve the problems of increasing the number, increasing the size of flexible printed circuit boards, increasing production costs, etc., to achieve Effects of size reduction, faster charging time, and lower production costs
Active Publication Date: 2016-05-04
ALPS ALPINE CO LTD
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Problems solved by technology
[0008] However, since the wiring parts are drawn from both sides of the electrodes and the ends of the wiring parts are used as connection terminals connected to the flexible printed circuit board, the number of terminals on the side of the sensor board electrically connected to the flexible printed circuit board The number increases, and as a result, there is a problem that the size of the flexible printed circuit board becomes larger
[0009] In addition, in Patent Document 1, the terminals drawn from the electrodes of the sensor substrate are electrically connected inside the flexible printed circuit board, but it is necessary to form a complicated laminated structure in which through-holes and the like are provided for connection.
[0010] In this way, the size of the flexible printed circuit board has conventionally increased, and a laminated structure is required in the flexible printed circuit board, and there has been a problem of increased production costs.
Method used
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[0072] figure 1 (a) is a plan view of the capacitive input device (touch panel) according to the first embodiment of the present invention, figure 1 (b) is along figure 1 (a) A partially enlarged longitudinal cross-sectional view of an electrostatic capacitive type cut off along the line A-A and observed from the direction of the arrow, figure 1 (c) is with figure 1 (b) Partially enlarged longitudinal cross-sectional views of some different capacitance types. figure 2 (a) is to figure 1 Partially enlarged plan view of the capacitive type shown in part (a). image 3 (a) is a plan view of a capacitive input device (touch panel) according to a second embodiment of the present invention, image 3 (b) is along image 3 (a) A partially enlarged longitudinal cross-sectional view cut along line B-B and viewed from the direction of the arrow. in addition, Figure 4 will be image 3 Partially enlarged plan view of the capacitive type shown in part (a). in addition, Fig...
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The invention aims to provide an electrostatic capacitive input device which is particularly excellent in responsiveness to coordinate input and gesture operation and can reduce production cost compared with the past. The electrostatic capacitive input device has a sensor substrate and a flexible printed circuit substrate, the sensor substrate has a transparent basis material, a transparent electrode arranged in an input area of the transparent basis material, a wiring unit formed by extending from an end part of the transparent electrode toward a peripheral area located in the peripheral of the input area, and an terminal unit electrically connected with the wiring unit, wherein the flexible printed circuit substrate is electrically connected with the terminal unit. The wiring unit has a first wiring unit formed by extending from a first end part of the transparent electrode toward the peripheral area and a second wiring unit formed by extending from a second end part toward the peripheral area, wherein a first terminal unit is arranged at an end part of the first wiring unit. The first wiring unit and the second wiring unit are electrically connected in the peripheral area through a wiring connecting unit.
Description
technical field [0001] The present invention relates to a wiring structure formed in a peripheral region located around an input region. Background technique [0002] Patent Document 1 discloses a capacitive input device. In this capacitive input device, wiring parts are drawn from both sides of each electrode formed on a sensor substrate, and a terminal part at the front end of each wiring part are electrically connected to each other in the flexible printed circuit board (refer to the reference document 1 Figure 5 ). [0003] By adopting a structure in which wiring parts are drawn from both sides of the electrodes and connected to the flexible printed circuit board as in Patent Document 1, the resistance can be reduced, and the charging time of electric charges can be shortened to improve responsiveness. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2010-128676 [0007] The problem to be solved by the...
Claims
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IPC IPC(8): G06F3/044
Inventor 小林洁
Owner ALPS ALPINE CO LTD