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US 2024/0177648 A1Published application
Power voltage generator, driver ic, and display device
AssigneeSamsung Display Co., Ltd.
InventorsHYUNCHANG KIM, SE-BYUNG CHAE
Life of this patent
Estimating the term…
Abstract
A power voltage generator includes an analog reference voltage generator configured to generate an analog reference voltage based on a first input voltage, a resistance string configured to generate distribution voltages by performing voltage distribution on the analog reference voltage, a decoding unit configured to generate reference voltages by decoding the distribution voltages, and a regulator unit configured to generate driving voltages based on the reference voltages.
Claims20
A power voltage generator comprising:
- an analog reference voltage generator configured to generate an analog reference voltage based on a first input voltage;
- a resistance string configured to generate distribution voltages by performing voltage distribution on the analog reference voltage;
- a decoding unit configured to generate reference voltages by decoding the distribution voltages;
- and
- a regulator unit configured to generate driving voltages based on the reference voltages.
2 more elements
A driver integrated circuit (IC) comprising:
- a power voltage generator configured to generate driving voltages;
- a gamma reference voltage generator configured to receive at least one of the driving voltages to generate a gamma reference voltage;
- and
- a data driver configured to generate data voltages based on the gamma reference voltage,
- wherein the power voltage generator includes:
- an analog reference voltage generator configured to generate an analog reference voltage based on a first input voltage for driving at least one of the data driver and the gamma reference voltage generator;
- a resistance string configured to generate distribution voltages by performing voltage distribution on the analog reference voltage;
- a decoding unit configured to generate reference voltages by decoding the distribution voltages;
- and
- a regulator unit configured to generate the driving voltages based on the reference voltages.
7 more elements
A display device comprising:
- a display panel including pixels to which at least one of driving voltages is input;
- a gate driver configured to apply gate signals to the pixels;
- and
- a driver integrated circuit (IC) configured to generate the driving voltages and to apply data voltages to the pixels,
- wherein the driver IC includes:
- a power voltage generator configured to generate the driving voltages;
- a gamma reference voltage generator configured to generate a gamma reference voltage;
- and
- a data driver configured to generate the data voltages based on the gamma reference voltage, and
- wherein the power voltage generator includes:
- an analog reference voltage generator configured to generate an analog reference voltage based on a first input voltage for driving at least one of the data driver and the gamma reference voltage generator;
- resistance string configured to generate distribution voltages by performing voltage distribution on the analog reference voltage;
- a decoding unit configured to generate reference voltages by decoding the distribution voltages;
- and
- a regulator unit configured to generate the driving voltages based on the reference voltages.
12 more elements
Dependencies are inferred from the claim text.