LIQUID CRYSTAL DISPLAY DEVICE AND IMAGE PROCESSING METHOD FOR SAME
First Claim
1. An image signal processing method comprising:
- receiving an image signal;
extracting an image depth of the image signal by analyzing the image signal if the image signal does not include separate image depth information;
separating the image signal into a foreground image signal and a background image signal based on the image depth;
correcting the foreground image signal based on a plurality of gamma curves; and
correcting the background image signal by applying a single gamma curve to the background image signal.
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Abstract
A display device includes a substrate, a plurality of gate lines disposed on the substrate, and which extends in first direction, a plurality of data lines disposed on the substrate, and which extends in a second direction intersecting the first direction, pixels connected to the gate lines and the data lines, a data drive unit which applies data signals to the data lines, a gate drive unit which supplies gate signals to the gate lines, a timing controller which controls the data signals and the gate signals, an image depth analysis unit which receives an image signal, and generates a foreground image signal based on an image depth of the image signal, and a gamma correction unit which generates a gamma-corrected image signal by applying a plurality of gamma curves to the foreground image signal.
8 Citations
20 Claims
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1. An image signal processing method comprising:
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receiving an image signal; extracting an image depth of the image signal by analyzing the image signal if the image signal does not include separate image depth information; separating the image signal into a foreground image signal and a background image signal based on the image depth; correcting the foreground image signal based on a plurality of gamma curves; and correcting the background image signal by applying a single gamma curve to the background image signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A display device comprising:
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a substrate; a plurality of gate lines disposed on the substrate, and which extends in first direction; a plurality of data lines disposed on the substrate, and which extends in a second direction which intersects the first direction; pixels connected to the gate lines and the data lines; a data drive unit which applies data signals to the plurality of data lines; a gate drive unit which supplies gate signals to the plurality of gate lines; a timing controller which controls the data signals and the gate signals; an image depth analysis unit which receives an image signal, and generates a foreground image signal based on an image depth of the image signal; and a gamma correction unit which generates a gamma-corrected image signal by applying a plurality of gamma curves to the foreground image signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification