Display and chromaticity compensation method thereof

Abstract

This case discloses a display and its chromaticity compensation method. A number table and a chromaticity compensation table are stored in memory. The number table records the relationship between the pixel positions of a plurality of pixels of an input signal and a plurality of numbers. The chromaticity compensation table records, under each of those numbers, a plurality of individual chromaticity reference compensation values ​​representing gray levels. It is determined that a gray level of the input signal lies between two target representative gray levels. An output signal is obtained based on the gray level of the input signal, the two target representative gray levels, and the individual chromaticity reference compensation values ​​of the two target representative gray levels.

Claims

1. A method for color compensation of a display, comprising: A number table and a chromaticity compensation table are stored in a memory. The number table records the relationship between the pixel positions of a plurality of pixels of an input signal and a plurality of numbers. The chromaticity compensation table records a plurality of individual chromaticity reference compensation values ​​representing gray levels under each of the numbers. A gray level of the input signal is determined to be between two target representative gray levels of the gray levels. An output signal is obtained based on the gray level of the input signal, the two target representative gray levels, and the individual chromaticity reference compensation values ​​of the two target representative gray levels.

2. The display chromaticity compensation method as described in claim 1, wherein, These represent five predetermined gray levels.

3. The display chromaticity compensation method as described in claim 1, wherein, During the data compensation stage, each pixel is photographed and data is collected at the representative gray levels; these pixels are classified into multiple groups, and multiple group centers of these groups are identified; each pixel is numbered according to its proximity to one of the group centers, and a numbering table is established.

4. The display chromaticity compensation method as described in claim 1, wherein, The output signal is obtained by linear interpolation based on the gray level of the input signal, the individual chromaticity reference compensation values ​​of the two target representative gray levels and the two target representative gray levels.

5. The display chromaticity compensation method as described in claim 1, wherein, The chromaticity compensation table includes: a red chromaticity compensation table, a green chromaticity compensation table and a blue chromaticity compensation table.

6. A display, comprising: A memory stores a number table and a chromaticity compensation table. The number table records the relationship between the pixel positions of a plurality of pixels of an input signal and a plurality of numbers. The chromaticity compensation table records a plurality of individual chromaticity reference compensation values ​​representing gray levels under each of the numbers. A decompression unit is coupled to the memory to determine whether a gray level of the input signal is between two target representative gray levels represented by the gray levels. And a processing unit coupled to the decompression unit, which obtains an output signal based on the gray level of the input signal, the two target representative gray levels and the individual chromaticity reference compensation values ​​of the two target representative gray levels.

7. The display as described in claim 6, wherein, These represent five predetermined gray levels.

8. The display as described in claim 6, wherein, During the data compensation stage, each pixel is photographed and data is collected at the representative gray levels; these pixels are classified into multiple groups, and multiple group centers of these groups are identified; each pixel is numbered according to its proximity to one of the group centers, and a numbering table is established.

9. The display as described in claim 6, wherein, The output signal is obtained by linear interpolation based on the gray level of the input signal, the individual chromaticity reference compensation values ​​of the two target representative gray levels and the two target representative gray levels.

10. The display as described in claim 6, wherein, The chromaticity compensation table includes: a red chromaticity compensation table, a green chromaticity compensation table and a blue chromaticity compensation table.

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