# US 2024/0201818 A1 · Touch panel device

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- Number: US 2024/0201818 A1
- Document ID: US20240201818A1
- Status: Published application
- Kind: A1
- Application number: 18/594,269
- Filed: 2024-03-04
- Published: 2024-06-20
- Earliest claimed: 2020-11-02
- Assignees: Fujitsu Component Limited
- Applicants: Fujitsu Component Limited
- Inventors: Yuta NAKAMURA; Yutaka UENO; Masaya MOROHASHI; Takuya OZAWA; Hideyuki HAGIHARA; Yuji MAKIUCHI
- Web page: https://patentgrep.com/patent/US20240201818A1

## CPC

- G06F 3/045: using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)}
- G06F 3/04186: {Touch location disambiguation}
- H03K 17/9645: {Resistive touch switches}
- H03K 17/9647: {using a plurality of detectors, e.g. keyboard}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)

## Abstract

A touch panel device includes a first conductive film having first and second regions, at least a part of the first conductive film between the first and the second regions being removed, a second conductive film laminated on the first conductive film across a gap, first and second terminals that output signals, a first electrode electrically connected to the first terminal, and a second electrode facing the first electrode across the first region. A switch may electrically connect the first conductive film to the second conductive film, in the second region.

## Claims

### Claim 1

A touch panel device comprising:
a first conductive film having a first region, a second region and a third region electrically separated from each other;
a second conductive film laminated on the first conductive film across a gap;
a first electrode provided on the first conductive film and electrically connected to a first terminal;
a second electrode provided on the first conductive film, facing the first electrode across the first region, and electrically connected to a second terminal;
a first switch provided in the second region and electrically connecting the first conductive film and the second conductive film;
a second switch provided in the third region and electrically connecting the first conductive film and the second conductive film;
a third electrode provided in the second region and electrically connected to a third terminal; and
a fourth electrode provided in the third region and electrically connected to a fourth terminal.

### Claim 2

A touch panel device comprising:
a first conductive film having a first region and a second region arranged in a first direction;
a first electrode provided on the first conductive film;
a second electrode provided on the first conductive film and facing the first electrode across the first region in a second direction intersecting the first electrode;
a third electrode provided on the first conductive film and facing the second electrode across the second region in the second direction; and
a second conductive film laminated on the first conductive film across a gap;
wherein the first region and the second region are connected in series between the first electrode and the third electrode.