Liquid crystal display, and device and method of modifying image signal for liquid crystal display
AssigneeSamsung Display Co., Ltd.
InventorsSung Gon Jung, Sang Su Han, Seok Hwan Roh
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Abstract
An image signal modifying device includes a pixel, a memory which stores compressed information in which a three-dimensional (“3-D”) lookup table is coded, an image signal modifying unit which decodes the compressed information to generate a restored 3-D lookup table and generates a modified signal based on a first image signal of a first frame, a second image signal of a second frame, a third image signal of a third frame and the restored 3-D lookup table, and a data driver which converts the modified signal into the data voltage and supplies the data voltage to the pixel.
Claims20
A liquid crystal display comprising:
- a pixel;
- a memory which stores compressed information in which a three-dimensional (3-D) lookup table is coded;
- an image signal modifying unit which decodes the compressed information to generate a restored 3-D lookup table defined by a plurality of two-dimensional (2-D) lookup tables, and generates a modified signal based on a first image signal of a first frame, a second image signal of a second frame, a third image signal of a third frame and the restored 3-D lookup table;
- and
- a data driver which converts the modified signal into a data voltage and supplies the data voltage to the pixel.
An image signal modifying method of a liquid crystal display, comprising:
- receiving a first image signal, a second image signal and a third image signal during three continuous frames;
- decoding compressed information stored in a memory, in which a three-dimensional (3-D) lookup table is coded, to generate a restored 3-D lookup table defined by a plurality of two-dimensional (2-D) lookup tables;
- generating a modified signal based on the first image signal, the second image signal, the third image signal and the restored 3-D lookup table;
- and
- converting the modified signal into a data voltage and supplying the data voltage to a pixel.
An image signal modifying device for a liquid crystal display, comprising:
- a memory which stores compressed information in which a three-dimensional (3-D) lookup table is coded;
- and
- an image signal modifying unit which decodes the compressed information to generate a restored 3-D lookup table, and generates a modified signal based on a first image signal of a first frame, a second image signal of a second frame, a third image signal of a third frame and the restored 3-D lookup table,
- wherein the 3-D lookup table is defined by a plurality of two-dimensional (2-D) lookup tables corresponding to a plurality of reference first image signals, and
- wherein a plurality of 2-D lookup tables include a plurality of reference modified signals corresponding to a plurality of reference second image signals and a plurality of reference third image signals.
Dependencies are inferred from the claim text.