Display driving circuit and driving method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsTaek Su Kwon, In-Suk Kim
Life of this patent
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Abstract
Provided is a display driving circuit, including at least one processor configured to generate a first gamma code corresponding to a first mode among a plurality of modes, a gamma voltage generator configured to generate a plurality of gamma voltages with respect to the first mode, a data driver configured to generate data signal corresponding to the first gamma code based on the first gamma code and the plurality of gamma voltages, and generate a first level data corresponding to a minimum gamma voltage among the plurality of gamma voltages based on the data signal, and a gamma control logic circuit configured to generate a gamma voltage control signal for controlling the gamma voltage generator based on the first level data.
Claims20
A display driving circuit, comprising:
- at least one processor configured to generate a first gamma code corresponding to a first mode among a plurality of modes;
- a gamma voltage generator configured to generate a plurality of gamma voltages with respect to the first mode;
- a data driver configured to generate a data signal corresponding to the first gamma code based on the first gamma code and the plurality of gamma voltages, detect a minimum gamma voltage among the plurality of gamma voltages used to generate the data signal based on the data signal, generate first level data corresponding to the minimum gamma voltage, and transfer the first level data;
- and
- a gamma control logic circuit configured to receive the first level data and generate a gamma voltage control signal for controlling the gamma voltage generator based on the first level data.
A driving method of a display driving circuit, comprising:
- generating a first gamma code corresponding to a first mode among a plurality of modes, in a first section among a porch section, the porch section being an interval between adjacent display periods among a plurality of display periods in which a data signal is output;
- generating, by a gamma voltage generator, a plurality of gamma voltages corresponding to the first mode;
- generating, by a data driver, a data signal corresponding to the first gamma code based on the first gamma code and the plurality of gamma voltages, and generating first level data corresponding to a minimum gamma voltage among the plurality of gamma voltages based on the data signal;
- and
- generating a gamma voltage control signal for controlling the gamma voltage generator based on the first level data in a second section after the first section during the porch section.
A display driving circuit, comprising:
- at least one processor configured to generate a first gamma code corresponding to a first mode among a plurality of modes, in a first section among a porch section, the porch section being an interval between adjacent display periods among a plurality of display periods in which a data signal is output;
- a gamma voltage generator configured to generate a plurality of gamma voltages with respect to the first mode;
- a data driver configured to generate the data signal corresponding to the first gamma code based on the first gamma code and the plurality of gamma voltages in the first section, and generate first level data indicating a minimum gamma voltage among the plurality of gamma voltages based on the data signal;
- and
- a gamma control logic circuit configured to generate a gamma voltage control signal for controlling the gamma voltage generator based on the first level data in a second section after the first section during the porch section.
Dependencies are inferred from the claim text.