Display apparatus, method of driving display panel using the same and electronic apparatus including the same
AssigneeSamsung Display Co., Ltd.
InventorWoung Kim
Life of this patent
Estimating the term…
Abstract
A display apparatus includes a display panel, a data driver and a driving controller. The data driver is which outputs a data voltage to the display panel. The driving controller determines a black voltage based on a driving frequency and a luminance setting value and determines an anode initialization voltage based on the driving frequency and the luminance setting value. A first anode initialization voltage of a first pixel having a first color is different from a second anode initialization voltage of a second pixel having a second color.
Claims23
A display apparatus comprising:
- a display panel;
- a data driver which outputs a data voltage to the display panel;
- and
- a driving controller which determines a black voltage based on a driving frequency, a temperature, and a luminance setting value and determines an anode initialization voltage based on the driving frequency, the temperature, and the luminance setting value, wherein the luminance setting value comprises a value representing a degree of luminance of the display panel that is set by a user or set based on an ambient luminance,
- wherein a first anode initialization voltage of a first pixel having a first color is different from a second anode initialization voltage of a second pixel having a second color.
A method of driving a display panel, the method comprising:
- determining initial values of a black voltage based on driving frequencies, temperatures, and luminance setting values;
- determining the black voltage by changing an initial value of the black voltage in a way such that a measured luminance of the display panel is less than a first target luminance;
- determining initial values of an anode initialization voltage based on the driving frequencies, the temperatures, and the luminance setting values;
- determining the anode initialization voltage by changing the initial values of the anode initialization voltage in a way such that the measured luminance of the display panel is less than a second target luminance less than the first target luminance;
- storing black voltages and anode initialization voltages for the driving frequencies and the luminance setting values in a memory;
- generating the black voltage and the anode initialization voltage based on an input driving frequency and an input luminance setting value, wherein the input luminance setting value comprises a value representing a degree of luminance of the display panel that is set by a user, set based on an ambient luminance, or set based on a maximum luminance value for a maximum grayscale value;
- determining a data voltage based on the black voltage;
- outputting the data voltage to a pixel of the display panel;
- and
- outputting the anode initialization voltage to the pixel.
A method of driving a display panel, the method comprising:
- determining initial values of a black voltage for driving frequencies, luminance setting values and temperatures;
- determining the black voltage by changing an initial value of the black voltage in a way such that a measured luminance of the display panel is less than a first target luminance;
- determining initial values of an anode initialization voltage for the driving frequencies, the luminance setting values and the temperatures;
- determining the anode initialization voltage by changing the initial values of the anode initialization voltage in a way such that the measured luminance of the display panel is less than a second target luminance less than the first target luminance;
- storing black voltages and anode initialization voltages for the driving frequencies, the luminance setting values and the temperatures in a memory;
- generating the black voltage and the anode initialization voltage based on an input driving frequency, an input luminance setting value and an input temperature;
- determining a data voltage based on the black voltage;
- outputting the data voltage to a pixel of the display panel;
- and
- outputting the anode initialization voltage to the pixel.
An electronic apparatus comprising:
- a display panel;
- a data driver which outputs a data voltage to the display panel;
- a driving controller which controls the data driver;
- and
- a host which outputs input image data and an input control signal to the driving controller,
- wherein the driving controller determines a black voltage based on a driving frequency, a temperature, and a luminance setting value and determines an anode initialization voltage based on the driving frequency, the temperature, and the luminance setting value, wherein the luminance setting value comprises a value representing a degree of luminance of the display panel that is set by a user, set based on an ambient luminance, or set based on a maximum luminance value for a maximum grayscale value, and
- wherein a first anode initialization voltage of a first pixel having a first color is different from a second anode initialization voltage of a second pixel having a second color.
Dependencies are inferred from the claim text.