# US 2021/0240288 A1 · Touch panel

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- Number: US 2021/0240288 A1
- Document ID: US20210240288A1
- Status: Published application
- Kind: A1
- Application number: 17/026,296
- Filed: 2020-09-20
- Published: 2021-08-05
- Earliest claimed: 2020-02-05
- Assignees: Himax Technologies Limited
- Applicants: Himax Technologies Limited
- Inventors: Yaw-Guang CHANG; Hui-Min WANG; Cheng-Hung TSAI; Chung-Wen CHANG
- Web page: https://patentgrep.com/patent/US20210240288A1

## CPC

- G06F 3/044: by capacitive means
- G06F 3/0443: {using a single layer of sensing electrodes}
- G02F 1/0311: {Structural association of optical elements, e.g. lenses, polarizers, phase plates, with the crystal}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- 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}
- A63F 9/10: Two-dimensional [2D] jig-saw puzzles
- A63F 2009/1061: {with electric features, e.g. light, wires}
- A63F 2009/241: {Touch screen}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR

## Abstract

A touch panel includes a cover lens located at top of the touch panel, plural touch sensor units, and plural sensing channels. The touch sensor units are disposed below the cover lens and arranged in rows and columns. The touch sensor units are disposed on the sensing channels. Each of touch sensor units acquires a sensing magnitude for identifying a position of the cover lens that touched by the stylus according to signals outputted by the sensing channels. The sensing magnitude of one of the touch sensor units is composed of the signals of the adjacent sensing channels located within a vertical projection of the one of the touch sensor units.

## Claims

### Claim 1

A touch panel, comprising:
a cover lens located at top of the touch panel;
a plurality of touch sensor units disposed below the cover lens and arranged in rows and columns; and
a plurality of sensing channels, wherein the touch sensor units are disposed on the sensing channels;
wherein each of touch sensor units acquires a sensing magnitude for identifying a position of the cover lens that touched by the stylus according to signals outputted by the sensing channels;
wherein the sensing magnitude of one of the touch sensor units is composed of the signals of the adjacent sensing channels located within a vertical projection of the one of the touch sensor units.

### Claim 2 (depends on 1)

The touch panel of claim 1, wherein the number of the touch sensor units is same as the number of the sensing channels.

### Claim 3 (depends on 1)

The touch panel of claim 1, wherein the touch panel is an in-cell touch panel, and the touch sensor units are disposed on a VCOM layer of the touch panel.

### Claim 4 (depends on 1)

The touch panel of claim 1, wherein the touch panel is an out-cell touch panel, an out-cell touch OLED panel, a flexible OLED touch panel, or a Y-OCTA (Youm On-Cell Touch AMOLED) panel, wherein the touch sensor units are disposed between the cover lens and a polarizer layer of the touch panel.

### Claim 5 (depends on 1)

The touch panel of claim 1, further comprising:
a sensing circuitry; and
a plurality of parallel traces coupled with the sensing circuitry;
wherein each of the parallel traces is coupled to one of the sensing channels;
wherein the sensing circuitry receives the signals of the sensing channels through the parallel traces, thereby identifying the position of the cover lens that touched by the stylus.

### Claim 6 (depends on 1)

The touch panel of claim 1, further comprising:
a plurality of pixels;
wherein each of the sensing channels corresponds to some of the pixels that are complete pixels.

### Claim 7 (depends on 1)

The touch panel of claim 1, wherein the sensing magnitude of the one of the touch sensor units is composed of the signals of at least three of the sensing channels.

### Claim 8 (depends on 1)

The touch panel of claim 1, wherein the sensing magnitude of the one of the touch sensor units is composed of the signals of five of the sensing channels.

### Claim 9 (depends on 1)

The touch panel of claim 1, wherein a pattern of each of the sensing channels is a serrated jigsaw puzzle.

### Claim 10 (depends on 1)

The touch panel of claim 1, wherein a pattern of each of the sensing channels is a brush bar.