Organic light emitting display device and driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorWon-Jun Choe
Life of this patent
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Abstract
An organic light emitting diode (OLED) display is disclosed. One aspect includes a pixel unit including a plurality of pixels formed at portions at which scanning lines and data lines intersect with each other; a scan driver for supplying scan signals to the scanning lines. The OLED display further comprises a data driver for supplying data signals to the data lines; and a data compensation unit changing the input data using a correction coefficient stored as a unit of a pixel block including a plurality of pixels and supplying the changed input data to the data driver. In such OLED display, the pixel block is divided so that the number of pixel arranged in the first direction is different from the number of pixel arranged in the second direction which intersects with the first direction.
Claims17
An organic light emitting display device, comprising:
- a pixel unit formed at the intersection of a plurality of scan lines and a plurality of data lines, the pixel unit including a plurality of pixels divided into a plurality of pixel blocks, wherein each pixel block includes a plurality of adjacent pixels;
- a scan driver configured to supply a plurality of scan signals to the scan lines;
- a data driver configured to supply a plurality of data signals to the data lines;
- and
- a data compensation unit storing a plurality of correction coefficients respectively corresponding to the pixel blocks, wherein the data compensation unit is configured to i) change input data for each pixel block based on the corresponding correction coefficient and ii) supply the changed input data to the data driver,
- wherein the number of pixels arranged in a first direction in each of the pixel blocks is different from the number of pixels arranged in a second direction which is perpendicular to the first direction.
A driving method of a display device, comprising:
- receiving a plurality of clock signals for counting positions of a plurality of pixels formed in a pixel unit and generating position information of the pixels, wherein the pixels are divided into a plurality of pixel blocks and wherein each pixel block includes a plurality of adjacent pixels;
- retrieving a correction coefficient for each of the pixel blocks from a memory;
- changing input data for the pixels of each of the pixel blocks using the corresponding correction coefficient and outputting changed data;
- and
- generating a data signal using the changed data,
- wherein the number of pixels arranged in a first direction in each of the pixel blocks is different from the number of pixel arranged in a second direction which intersects with the first direction.
A method of manufacturing a display device comprising:
- forming pixels units at the intersection of a plurality of scan lines and a plurality of data lines, wherein the pixel units comprise a plurality of pixels divided into a plurality of pixel blocks, wherein each pixel block includes a plurality of adjacent pixels;
- forming a scan driver configured to supply a plurality of scan signals to the scan lines;
- forming a data driver configured to supply a plurality of data signals to the data lines;
- and
- forming a data compensation unit configured to i) store a plurality of correction coefficients respectively corresponding to the pixel blocks, ii) change input data for each pixel block based on the corresponding correction coefficient, and iii) supply the changed input data to the data driver,
- wherein the number of pixels arranged in a first direction in each of the pixel blocks is different from the number of pixel arranged in a second direction which intersects with the first direction.
Dependencies are inferred from the claim text.