# US 2014/0192010 A1 · Capacitive Touch Panel

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- Number: US 2014/0192010 A1
- Document ID: US20140192010A1
- Status: Published application
- Kind: A1
- Application number: 13/966,267
- Filed: 2013-08-13
- Published: 2014-07-10
- Earliest claimed: 2013-01-10
- Assignees: Novatek Microelectronics Corp.
- Applicants: NOVATEK Microelectronics Corp.
- Inventors: Chih-Chang Lai; Shih-Ming Lin
- Web page: https://patentgrep.com/patent/US20140192010A1

## CPC

- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A capacitive touch panel is disclosed to include a plurality of sensing channels disposed along a first direction and a second direction, respectively, and including a plurality of sensing modules. Each of the plurality of sensing modules includes a sensing unit and a plurality of dummy units being separately disposed to form a plurality of boundaries. A plurality of extension rays of the plurality of boundaries, the first direction and the second direction are interlaced to form a plurality of angles being in the range from zero degrees to ninety degrees or from ninety degrees to a hundred and eighty degrees. A plurality of connecting units is disposed along the first direction and the second direction for connecting the plurality of sensing modules. The first direction is perpendicular to the second direction and the plurality of sensing channels is perpendicular to each other on a projective plane.

## Claims

### Claim 1

A capacitive touch panel, comprising:
a plurality of first sensing channels disposed along a first direction, and each of the plurality of first sensing channels comprising:
a plurality of first sensing modules, and each of the first sensing modules comprising:
a first sensing unit;
a plurality of first dummy units disposed to one side of the first sensing unit; and
a plurality of second dummy units disposed to another side of the first sensing unit;
wherein the plurality of first dummy units and the plurality of second dummy units are separately disposed to form a plurality of first boundaries, and a plurality of extension rays derived from the plurality of first boundaries and another extension ray of the first direction are interlaced to form a plurality of first angles being in the range from zero degrees to ninety degrees or from ninety degrees to a hundred and eighty degrees; and
a plurality of first connecting units disposed along the first direction for connecting the plurality of first sensing modules; and
a plurality of second sensing channels disposed along a second direction, and each of the plurality of second sensing channels comprising:
a plurality of second sensing modules, and each of the second sensing modules comprising:
a second sensing unit;
a plurality of third dummy units disposed to one side of the second sensing unit; and
a plurality of fourth dummy units disposed to another side of the second sensing unit;
wherein the plurality of third dummy units and the plurality of fourth dummy units are separately disposed to form a plurality of second boundaries, and a plurality of extension rays derived from the plurality of second boundaries and another ray of the second direction are interlaced to form a plurality of second angles being in the range from zero degrees to ninety degrees or from ninety degrees to a hundred and eighty degrees; and
a plurality of second connecting units disposed along the second direction for connecting the plurality of second sensing modules;
wherein the first direction is perpendicular to the second direction, such that the plurality of first sensing channels and the plurality of second sensing channels are perpendicular to each other on a projective plane.

### Claim 2 (depends on 1)

The capacitive touch panel of claim 1, wherein each dummy unit of the plurality of first dummy units, second dummy units, third dummy units and fourth dummy units is shaped as a quadrilateral.

### Claim 3 (depends on 2)

The capacitive touch panel of claim 2, wherein the quadrilateral comprises two obtuse angles and two acute angles.

### Claim 4 (depends on 2)

The capacitive touch panel of claim 2, wherein a number of the plurality of first dummy units, second dummy units, third dummy units and fourth dummy units is three.

### Claim 5 (depends on 4)

The capacitive touch panel of claim 4, wherein each of the plurality of first sensing channels further comprises a plurality of fifth dummy units connecting the plurality of first connecting units, and each of the plurality of second sensing channels further comprises a plurality of sixth dummy units connecting the plurality of second connecting units.

### Claim 6 (depends on 5)

The capacitive touch panel of claim 5, wherein a number of the plurality of fifth dummy units and sixth dummy units is four and forms a triangular shape.

### Claim 7 (depends on 2)

The capacitive touch panel of claim 2, wherein the quadrilateral comprises four right angles.

### Claim 8 (depends on 7)

The capacitive touch panel of claim 7, wherein a number of the plurality of first dummy units, second dummy units, third dummy units and fourth dummy units is four.

### Claim 9 (depends on 2)

The capacitive touch panel of claim 2, wherein each of the plurality of first sensing modules and second sensing modules is a rhombus in shape and comprises four sides with equal length.

### Claim 10 (depends on 9)

The capacitive touch panel of claim 9, wherein the plurality of first sensing units, second sensing units, first dummy units, second dummy units, third dummy units and fourth dummy units each comprise at least a side being one third of the side of the rhombus.

### Claim 11 (depends on 9)

The capacitive touch panel of claim 9, wherein the plurality of first sensing units, second sensing units, first dummy units, second dummy units, third dummy units and fourth dummy units each comprise at least a side being two fifths of the side of the rhombus.

### Claim 12 (depends on 11)

The capacitive touch panel of claim 11, wherein the plurality of first sensing units, second sensing units, first dummy units, second dummy units, third dummy units and fourth dummy units each comprise at least a side being one fifth of the side of the rhombus.

### Claim 13 (depends on 9)

The capacitive touch panel of claim 9, wherein the side of each of the plurality of first sensing modules corresponding to the rhombus and the side of each of the plurality of second sensing modules corresponding to the rhombus are separately disposed as a first distance.

### Claim 14 (depends on 13)

The capacitive touch panel of claim 13, wherein each of the plurality of first boundaries and second boundaries comprises a boundary width being equal to the first distance.

### Claim 15 (depends on 1)

The capacitive touch panel of claim 1, wherein each of the plurality of first connecting units and second connecting units is a rectangle.

### Claim 16 (depends on 15)

The capacitive touch panel of claim 15, wherein at least one side of the rectangle forms as a stairway shape toward inside or outside to become a concave part or a convex part.
