# US 2018/0279969 A1 · Touch-controlled assembly

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- Number: US 2018/0279969 A1
- Document ID: US20180279969A1
- Status: Published application
- Kind: A1
- Application number: 15/613,143
- Filed: 2017-06-03
- Published: 2018-10-04
- Earliest claimed: 2017-03-31
- Assignees: Cal-Comp Big Data, Inc.
- Applicants: Cal-Comp Big Data, Inc.
- Inventors: Yi-Wen Chou
- Web page: https://patentgrep.com/patent/US20180279969A1

## CPC

- A61B 5/7475: {User input or interface means, e.g. keyboard, pointing device, joystick}
- A61B 5/0077: {Devices for viewing the surface of the body, e.g. camera, magnifying lens}
- A61B 5/441: {Skin evaluation, e.g. for skin disorder diagnosis}
- H03K 17/9622: {using a plurality of detectors, e.g. keyboard}
- H03K 2217/96031: Combination of touch switch and LC display
- H03K 2217/96077: comprising an electrode which is floating
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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-controlled assembly adapted to an electronic device is provided. The electronic device has a front casing, a rear casing and a display surface, where the display surface is located on the front casing. The touch-controlled assembly includes a circuit board and at least one touch key. The circuit board is disposed between the front casing and the rear casing. The circuit board has at least one pad, which contacts one surface of the rear casing. The at least one touch key is disposed on another surface of the rear casing for corresponding to the at least one pad, where an orthogonal projection of the at least one touch key on the at least on pad is partially overlapped with the at least one pad.

## Claims

### Claim 1

A touch-controlled assembly, adapted to an electronic device, the electronic device having a front casing, a rear casing and a display surface, wherein the display surface is located on the front casing, the touch-controlled assembly comprising:
a circuit board, disposed between the front casing and the rear casing, and having at least one pad, wherein the at least one pad contacts one surface of the rear casing; and
at least one touch key, disposed on another surface of the rear casing for corresponding to the at least one pad, wherein an orthogonal projection of the at least one touch key on the at least on pad is partially overlapped with the at least one pad.

### Claim 2 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein the touch-controlled assembly is a capacitive touch input assembly.

### Claim 3 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein the at least one touch key is conductive.

### Claim 4 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein the rear casing is located between the at least one pad and the at least one touch key without a gap therebetween.

### Claim 5 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein the rear casing has a rib extending towards the front casing, the circuit board is located adjacent to an inner side of the rib, and the at least one touch key strides over from a corresponding place of the inner side of the rib to a corresponding place of an outer side of the rib.

### Claim 6 (depends on 5)

The touch-controlled assembly as claimed in claim 5, wherein an orthogonal projection of a base portion of the rib on the at least one touch key is located within a range of the at least one touch key.

### Claim 7 (depends on 5)

The touch-controlled assembly as claimed in claim 5, further comprising:
a sealing member, disposed in a recess of the front casing and leaned against by the rib.

### Claim 8 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein an overlapped area between an orthogonal projection of the at least one touch key on the circuit board and the at least one pad is greater than or equal to 40% of an area of the at least one pad.

### Claim 9 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein the at least one touch key extends from a place corresponding to the at least one pad towards an outer edge of the rear casing.

### Claim 10 (depends on 1)

The touch-controlled assembly as claimed in claim 1, wherein the circuit board is a flexible circuit board.