Display device, electronic device including the same, and method of driving the display device
AssigneeSamsung Display Co., Ltd.
InventorSI-BEAK PYO
Life of this patent
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Abstract
A display device operates in a first mode or a second mode. A light emission control signal includes a first non-light-emission period in the first mode and a second non-light-emission period in the second mode, a black scan signal includes a first activation period in the first mode, the black scan signal includes a second activation period and a correction activation period in the second mode. A time interval between a start point of the first non-light-emission period and a start point of the first activation period is equal to a time interval between a start point of the second non-light-emission period and a start point of the correction activation period.
Claims20
A display device comprising:
- a pixel which operates in a first mode or a second mode;
- a scan driver which applies a black scan signal to the pixel;
- and
- a light emission driver which applies a light emission control signal to the pixel,
- wherein the light emission control signal comprises a first non-light-emission period in the first mode and a second non-light-emission period in the second mode,
- the first non-light-emission period has a duration different from a duration of the second non-light-emission period,
- the black scan signal comprises a first activation period in the first mode,
- the black scan signal comprises a second activation period and a correction activation period in the second mode, and
- a time interval between a start point of the first non-light-emission period and a start point of the first activation period is equal to a time interval between a start point of the second non-light-emission period and a start point of the correction activation period.
A method of driving a display device, the method comprising:
- allowing a driving controller to receive a luminance adjustment value;
- comparing the luminance adjustment value with a reference value;
- outputting a target luminance corresponding to the luminance adjustment value and a light emission ratio corresponding to the luminance adjustment value;
- outputting a light emission control signal based on the light emission ratio;
- outputting a correction signal based on the light emission ratio when the luminance adjustment value is smaller than the reference value;
- and
- outputting a black scan signal comprising a correction activation period based on the correction signal.
An electronic device comprising:
- a display device;
- and
- a processor which controls an operation of the display device,
- wherein the display device comprising:
- a pixel which operates in a first mode or a second mode;
- a scan driver which applies a black scan signal to the pixel;
- and
- a light emission driver which applies a light emission control signal to the pixel,
- wherein the light emission control signal comprises a first non-light-emission period in the first mode and a second non-light-emission period in the second mode,
- the first non-light-emission period has a duration different from a duration of the second non-light-emission period,
- the black scan signal comprises a first activation period in the first mode,
- the black scan signal comprises a second activation period and a correction activation period in the second mode, and
- a time interval between a start point of the first non-light-emission period and a start point of the first activation period is equal to a time interval between a start point of the second non-light-emission period and a start point of the correction activation period.
Dependencies are inferred from the claim text.