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US 2026/0301673 A1Published application
Display device and electronic device including the display device
AssigneeSamsung Display Co., Ltd.
InventorSI-BEAK PYO
Life of this patent
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Abstract
A reference voltage, a data drive voltage and a difference value between an anode initialization voltage and a second power supply voltage are controlled according to an average image level of input image data.
Claims20
A display device comprising:
- a display panel including a pixel driven based on a first power supply voltage and a second power supply voltage;
- and
- a display panel driver configured to generate a data driving voltage, configured to generate a gamma reference voltage by dividing the data driving voltage, configured to generate a data voltage based on input image data by dividing the data driving voltage and the gamma reference voltage, and configured to supply the data voltage to the pixel, wherein:
- the pixel includes:
- a driving transistor configured to generate a driving current;,
- a data write transistor configured to supply the data voltage to the driving transistor;
- a reset transistor configured to supply a reference voltage to a gate electrode of the driving transistor;
- a light emitting diode configured to emit light based on the driving current;
- and
- an anode initialization transistor configured to supply an anode initialization voltage to an anode electrode of the light emitting diode, and
- the display panel driver is further configured to control the reference voltage, the data driving voltage, and a difference value between the anode initialization voltage and the second power supply voltage based on an average picture level (APL) of the input image data.
8 more elements
An electronic device comprising:
- a display panel including a pixel driven based on a first power supply voltage and a second power supply voltage;
- a display panel driver configured to generate a data driving voltage, configured to generate a gamma reference voltage by dividing the data driving voltage, configured to generate a data voltage based on input image data by dividing the data driving voltage and the gamma reference voltage , and configured to supply the data voltage to the pixel;
- and
- a processor configured to control the display panel driver, wherein:
- the pixel includes:
- a driving transistor configured to generate a driving current;
- a data write transistor configured to supply the data voltage to the driving transistor;
- a reset transistor configured to supply a reference voltage to a gate electrode of the driving transistor;
- a light emitting diode configured to emit light based on the driving current;
- and
- an anode initialization transistor configured to supply an anode initialization voltage to an anode electrode of the light emitting diode, and
- the display panel driver is further configured to control the reference voltage, the data driving voltage, and a difference value between the anode initialization voltage and the second power supply voltage based on an average picture level (APL) of the input image data.
9 more elements
Dependencies are inferred from the claim text.