# US 2014/0152626 A1 · Display device having pattern and method of detecting pixel position therein

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- Number: US 2014/0152626 A1
- Document ID: US20140152626A1
- Status: Published application
- Kind: A1
- Application number: 14/095,576
- Filed: 2013-12-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Seong-Min Seo; Kang-Nam Kim; In-Kuk Yun
- Web page: https://patentgrep.com/patent/US20140152626A1

## CPC

- G06F 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment}
- G06F 3/03542: {Light pens for emitting or receiving light}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A display device and method having a pattern are provided. The display device includes a plurality of color filters which correspond to one or more sub-pixels constituting a pixel of the display device; and a black matrix formed between the plurality of color filters, wherein the one or more sub-pixels include one or more position marks indicating an absolute position of each pixel of the display device and one or more error correction marks for correcting an error when the one or more position marks are detected.

## Claims

### Claim 1

A display device having a pattern, comprising:
a plurality of color filters which correspond to one or more sub-pixels constituting a pixel of the display device; and
a black matrix formed between the plurality of color filters,
wherein the one or more sub-pixels include one or more position marks indicating an absolute position of each pixel of the display device and one or more error correction marks for correcting an error when the one or more position marks are detected.

### Claim 2 (depends on 1)

The display device as claimed in claim 1, wherein the one or more position marks comprise one or more X coordinate marks and one or more Y coordinate marks.

### Claim 3 (depends on 1)

The display device as claimed in claim 1, wherein the error correction marks have a value using a Hamming code.

### Claim 4 (depends on 1)

The display device as claimed in claim 1, wherein the one or more sub-pixels are divided into an upper portion and a lower portion respectively, and the one or more position marks and the error correction marks are formed at the lower portion.

### Claim 5 (depends on 1)

The display device as claimed in claim 1, wherein the one or more position marks and the error correction marks are implemented by using pentadecimal numeral system with respect to a 2×2 pixel.

### Claim 6

A method of detecting a position of a pixel in a display device having a pattern, the method comprising:
receiving an input of a display screen image captured by a camera to extract an effective pattern area for a recognition of a pattern from the display screen image;
detecting sub-pixels included in the effective pattern area so as to determine sub-pixels including one or more position marks and error correction marks;
determining a sub-pixel in which an error occurs among sub-pixels including the position marks by using the sub-pixels including the position marks and the error correction marks;
correcting the error of the sub-pixel in which the error occurs; and
calculating a display coordinate by using the position marks included in the sub-pixels.

### Claim 7 (depends on 6)

The method as claimed in claim 6, wherein the one or more position marks comprise one or more X coordinate marks and one or more Y coordinate marks.

### Claim 8 (depends on 6)

The method as claimed in claim 6, wherein the error correction marks have a value using a Hamming code.

### Claim 9 (depends on 6)

The method as claimed in claim 6, wherein the one or more sub-pixels are divided into an upper portion and a lower portion respectively, and the one or more position marks and the error correction marks are formed at the lower portion.

### Claim 10 (depends on 6)

The method as claimed in claim 6, wherein the one or more position marks and the error correction marks are implemented by using pentadecimal numeral system with respect to a 2×2 pixel.