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US 12,002,413 B2Granted
Display device and dimming driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorsHong Soo Kim, Myung Woo Lee, Suk Hun Lee
Life of this patent
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Abstract
A display device comprises a pixel configured to be driven in cycle periods during a frame period defined by a vertical start signal, and a display driver configured to divide a cycle period into subfields for driving, configured to control an amount of current flowing through the pixel and to control emission on-duties of the subfields, and configured to independently determine, for the cycle period, a reference duty that is a minimum emission on-duty set in the cycle period based on a dimming signal.
Claims20
A display device comprising:
- a pixel configured to be driven in cycle periods during a frame period defined by a vertical start signal;
- and
- a display driver configured to divide a cycle period into subfields for driving, configured to control an amount of current flowing through the pixel and to control emission on-duties of the subfields, and configured to independently determine, for the cycle period, a reference duty that is a minimum emission on-duty set in the cycle period based on a dimming signal.
A dimming driving method of a display device comprising:
- determining a first reference duty and a second reference duty, which are minimum emission on-duties set in a first cycle period and a second cycle period of a frame period, respectively, and which have different respective lengths, in response to a dimming level of a dimming signal;
- dividing the first cycle period into first to eighth subfields based on the first reference duty to drive;
- and
- dividing the second cycle period into first to eighth subfields based on the second reference duty to drive.
1 more element
Dependencies are inferred from the claim text.