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US 2018/0018922 A1Published application
Image data processing apparatus, image data processing method, and display device
AssigneeSilicon Works Co., Ltd.
InventorsYou Shin LEE, Young Jun JUN, Young Sun NA, Jae Hwan LIM, Seong Hyeon JO
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Abstract
The present invention generates overdriving image data by compressing and storing image data and comparing stored previous-period image data and current-period image data. The present invention controls a data voltage upward or downward through overdriving image data, thereby improving the reaction speed of a pixel.
Claims12
An apparatus for processing image data, the apparatus comprising:
- a RGBX converter configured to convert red-green-blue (RGB) data to RGBX data wherein X indicates a component of R, G, and B, or a component corresponding to a combination of at least one of R, G, and B;
- a RGBX encoder configured to generate compressed data of the RGBX data, and to periodically store the compressed data in a memory;
- a first RGBX decoder configured to decompress the compressed data to generate RGBX″(n) data;
- a second RGBX decoder configured to decompress compressed data of a previous period stored in the memory, to generate RGBX″(n-1) data;
- and
- an overdriving (OD) calculating unit configured to compare the RGBX″(n) data and the RGBX″(n-1) data to generate OD RGBX data of the RGBX data.
3 more elements
A method of processing image data, the method comprising:
- converting red-green-blue (RGB) data into RGBW data (W:White);
- periodically converting the RGBW data to YUVW data and performing block truncation coding (BTC) conversion to generate encoded data;
- decoding current-period encoded data and previous-period encoded data and comparing the current-period encoded data with the previous-period encoded data;
- and
- generating overdriving (OD) RGBX data of the RGBW data based on the comparison.
2 more elements
A display device, comprising:
- a panel on which a plurality of pixels and a plurality of data lines, which transfer a data voltage to the pixels, are disposed;
- a timing controller configured to convert red-green-blue (RGB) data to RGBX data wherein X indicates a component of R, G, and B or a component corresponding to a combination of at least one R, G, and B, to periodically store compressed data of the RGBX data in a memory, to decompress current-period compressed data and previous-period compressed data stored in the memory to compare the current-period compressed data with the previous-period compressed data, and to generate overdriving (OD) RGBX data of the RGBX data based on the comparison;
- and
- a source driver configured to convert the OD RGBX data to the data voltage and to output the data voltage to the data line.
1 more element
Dependencies are inferred from the claim text.