# US 2013/0154903 A1 · Color correcting apparatus and method for color match between stereoscopic display devices

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- Number: US 2013/0154903 A1
- Document ID: US20130154903A1
- Status: Published application
- Kind: A1
- Application number: 13/615,466
- Filed: 2012-09-13
- Published: 2013-06-20
- Earliest claimed: 2011-12-14
- Assignees: Electronics and Telecommunications Research Institute
- Inventors: Jin Seo KIM
- Web page: https://patentgrep.com/patent/US20130154903A1

## CPC

- G09G 5/02: characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)}
- H04N 1/6055: {using test pattern analysis}
- H04N 13/133: Equalising the characteristics of different image components, e.g. their average brightness or colour balance
- H04N 13/15: for colour aspects of image signals
- G09G 2320/0242: Compensation of deficiencies in the appearance of colours
- G09G 2320/0693: Calibration of display systems
- G09G 2340/06: Colour space transformation
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

The present disclosure relates to a color correcting method of a display device. A color correcting apparatus includes an input unit configured to receive an input image; an output unit configured to connect the color correcting apparatus with a reference sterosopic display device and a target stereoscopic display device; a user input unit configured to receive feedback data based on the difference in colors of the reference stereoscopic display device and the target stereoscopic display device; and a processor configured to convert colors of the input image using color profiles of the reference stereoscopic display device and the target stereoscopic display device and correct the colors of the target stereoscopic display device based on the feedback data to be consistent with the colors of the reference stereoscopic display device.

## Claims

### Claim 1

A color correcting apparatus for color match between stereoscopic display devices, comprising:
an input unit configured to receive an input image;
an output unit configured to connect the color correcting apparatus with a reference sterosopic display device and a target stereoscopic display device;
a user input unit configured to receive feedback data based on the difference in colors of the reference stereoscopic display device and the target stereoscopic display device; and
a processor configured to convert colors of the input image using color profiles of the reference stereoscopic display device and the target stereoscopic display device and correct the colors of the target stereoscopic display device based on the feedback data to be consistent with the colors of the reference stereoscopic display device.

### Claim 2 (depends on 1)

The color correcting apparatus for color match between stereoscopic display devices of claim 1, wherein the feedback data includes a color characteristic adjustement value for color characteristics such as brightness, chroma, and hue in order to convert the colors of the target stereoscopic display device.

### Claim 3 (depends on 1)

The color correcting apparatus for color consistency between stereoscopic display devices of claim 1, wherein the processor corrects the colors of the reference stereoscopic display data using a reference color chart.

### Claim 4 (depends on 3)

The color correcting apparatus for color match between stereoscopic display devices of claim 3, wherein the processor converts colors of a reference color chart image based on the color profile of the reference stereoscopic display device to output the color-converted image to the reference stereoscopic display device, and compares the reference color chart image of the reference stereoscopic display device to the actual referene color chart to correct the colors of the reference stereoscopic display device until the colors of the reference color chart image are consistent with the colors of the actual reference color chart.

### Claim 5

A color correcting method for color match between stereoscopic display devices, comprising:
converting colors of an input image using color profiles of a reference stereoscopic display device and a target stereoscopic display device;
receiving feedback data based on the difference in colors between the reference stereoscopic display device and the target stereoscopic display device to which the color-converted input images are output;
checking the color match between the reference stereoscopic display device and the target stereoscopic display device based on the feedback data;
correcting the colors of the target stereoscopic display device based on the feedback data if the colors of the reference stereoscopic display device are not consistent with the colors of the target stereoscopic display device.

### Claim 6 (depends on 5)

The color correcting method for color match between stereoscopic display devices of claim 5, wherein the color profile is generated by the measurement data measured for color characteristics of the reference stereoscopic display device and the target stereoscopic display device using a spectrophotometer.

### Claim 7 (depends on 6)

The color correcting method for color match between stereoscopic display devices of claim 6, wherein the measurement data is a data on the CIEXYZ color space or the CIELAB color space.

### Claim 8 (depends on 5)

The color correcting method for color match between stereoscopic display devices of claim 5, wherein the receiving of feedback data includes receiving an adjustement value for color characteristics such as brightness, chroma, and hue of the target stereoscopic display device.

### Claim 9 (depends on 8)

The color correcting method for color consistency between stereoscopic display devices of claim 8, further comprising:
if the colors of the reference stereoscopic display device are consistant with the colors of the target stereoscopic display device, the color profile of the target stereoscopic display device is regenerated by referring the color characteristic adjustment value of the target stereoscopic display device.