Display device and method for driving the same
AssigneeSamsung Display Co., Ltd.
InventorsJae Hyeon Jeon, Joon Chul Goh, Jin Wook Yang, Ki Hong Song
Life of this patent
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Abstract
A display device includes: a plurality of pixels, where each of the pixels includes a light emitting device and a pixel circuit coupled to the light emitting device; a scan driver which supplies a scan signal to the pixel circuit; a data driver which supplies a data signal to the pixel circuit; a power supply which supplies a voltage to the pixel circuit; a timing controller which controls the scan driver; a first signal generator which provides a first clock signal to the timing controller; and a second signal generator which provides a second clock signal to the timing controller.
Claims18
A display device comprising:
- a plurality of pixels, wherein each of the pixels includes a light emitting device, and a pixel circuit coupled to the light emitting device;
- a scan driver which supplies a scan signal to the pixel circuit;
- a data driver which supplies a data signal to the pixel circuit;
- a power supply which supplies a voltage to the pixel circuit;
- a timing controller which controls the scan driver;
- a first signal generator which provides a first clock signal to the timing controller;
- and
- a second signal generator which provides a second clock signal to the timing controller,
- wherein the timing controller controls the scan driver based on the first clock signal to supply a first scan signal to the pixel circuit, and controls the scan driver based on the second clock signal to supply a second scan signal to the pixel circuit,
- wherein the first signal generator and the second signal generator are provided independently of each other, so that pulse widths of the first scan signal and the second scan signal are controlled independently of each other, and
- wherein the first signal generator and the second signal generator are oscillators.
A method for driving a display device, which is driven with a variable frequency driving using a first frequency and a second frequency, which are different from each other, the method comprising:
- providing, by a first signal generator of the display device, a first clock signal to a timing controller of the display device, and supplying, by a scan driver of the display device, a first scan signal to a pixel circuit of the display device based on the first clock signal, wherein the scan driver is controlled by the timing controller;
- and
- providing, by a second signal generator of the display device, a second clock signal to the timing controller, and supplying, by the scan driver, a second scan signal to the pixel circuit based on the second clock signal,
- wherein the first signal generator and the second signal generator are provided independently of each other, so that pulse widths of the first scan signal and the second scan signal are controlled independently of each other, and
- wherein the first signal generator and the second signal generator are oscillators.
Dependencies are inferred from the claim text.