Organic light emitting display including demultiplexer and driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorYang-Wan Kim
Life of this patent
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Abstract
An organic light emitting display includes first sub-pixels, second sub-pixels and third sub-pixels at an area defined by scan lines and data lines; a data driver configured to supply an initialization voltage and data signals to output lines; demultiplexers coupled to respective ones of the output lines, each demultiplexer being configured to supply a plurality of the data signals to a plurality of the data lines; and a demultiplexer controller configured to control the demultiplexer so that data signals are concurrently supplied to at least one of the first sub-pixels, the second sub-pixels or the third sub-pixels.
Claims9
An organic light emitting display comprising:
- a plurality of pixels comprising first sub-pixels, second sub-pixels and third sub-pixels at an area defined by scan lines and data lines;
- a data driver configured to supply an initialization voltage and data signals to output lines;
- demultiplexers coupled to respective ones of the output lines, each demultiplexer being configured to supply a plurality of the data signals to a plurality of the data lines;
- and
- a demultiplexer controller configured to control the demultiplexers so that the data signals are concurrently supplied to at least one of the first sub-pixels, the second sub-pixels or the third sub-pixels of the plurality of pixels,
- wherein each of the demultiplexers comprises a first switch and a second switch,
- wherein each of the first and second switches is a single transistor,
- wherein the first switch coupled to an i-th (i is only 1, 4, 7, . . . ) output line is turned on when a first control signal is supplied from the demultiplexer controller, and the second switch coupled to the i-th output line is turned on when a second control signal is supplied from the demultiplexer controller, and
- wherein the first switch coupled to (i+1)-th and (i+2)-th output lines is turned on when the second control signal is supplied from the demultiplexer controller such that the data signals supplied to the (i+1)-th and (i+2)-th output lines are supplied to data lines corresponding to the first switches while the first switches are turned on, and the second switch coupled to the (i+1)-th and (i+2)-th output lines is turned on when the first control signal is supplied from the demultiplexer controller such that the data signals applied to the (i+1)-th and (i+2)-th output lines are supplied to data lines corresponding to the second switches while the second switches are turned on.
Dependencies are inferred from the claim text.