Display device and operating method thereof
AssigneeSamsung Display Co., Ltd.
InventorsJeong Min Sung, Woo Chul Kim, Weon Jun Choe
Life of this patent
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Abstract
A display device may include a pixel, an emission control driver, and a timing controller. The emission control driver may supply an emission control signal set for controlling emission periods of the pixel. The timing controller may receive a received bit stream that includes a first bit set and a second bit set, may determine a first duty ratio of the emission control signal set using bits of the first bit set without using any bit of the second bit set. The first bit set may include at least two bits. The second bit set may include at least one bit. The emission control signal set may control the pixel to operate according to the first duty ratio for each frame of a first frame group.
Claims10
A timing controller comprising:
- a dimming controller configured to determine a duty ratio of an emission control signal based on a duty ratio bit stream configured with a plurality of bits, the emission control signal determining emission periods and non-emission periods of a pixel;
- and
- a signal converter configured to supply a control signal corresponding to the duty ratio to an emission control driver,
- wherein the dimming controller determines the duty ratio, by using partial bits among the plurality of bits of the duty ratio bit stream, and
- wherein a first length of one of the emission periods for a first frame is different from a second length of one of the emission periods for a second frame.
A method for driving a timing controller, the method comprising:
- determining a first duty ratio of an emission control signal for a first frame by using partial bits among a plurality of bits of a first duty ratio bit stream, the emission control signal determining emission periods and non-emission periods of a pixel;
- supplying a control signal corresponding to the first duty ratio to an emission control driver;
- determining a second duty ratio of the emission control signal for a second frame after the first frame by using partial bits among a plurality of bits of a second duty ratio bit stream;
- and
- supplying the control signal corresponding to the second duty ratio to the emission control driver,
- wherein a first length of one of the emission periods for the first frame is different from a second length of one of the emission periods for the second frame.
Dependencies are inferred from the claim text.