# US 2014/0198135 A1 · Organic light emitting display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198135 A1 - Document ID: US20140198135A1 - Status: Published application - Kind: A1 - Application number: 13/933,056 - Filed: 2013-07-01 - Published: 2014-07-17 - Earliest claimed: 2013-01-17 - Inventors: Ki-Myeong Eom; Mi-Hae Kim - Web page: https://patentgrep.com/patent/US20140198135A1 ## CPC - G09G 3/3275: Details of drivers for data electrodes - G09G 2310/0297: Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns - G09G 2320/0233: Improving the luminance or brightness uniformity across the screen - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract Provided is an organic light emitting display device including: a scan driver configured to supply a scan signal to a scan line during a scan period of a horizontal period; a data driver configured to supply a plurality of data signals to a plurality of output lines during a data period of the horizontal period; a demultiplexer configured to transmit the data signals through the output lines to a plurality of data lines according to a plurality of control signals; and a demultiplexer controller configured to supply the control signals to the demultiplexer, with a supply order of the control signals being changed for each frame. ## Claims ### Claim 1 An organic light emitting display device comprising, a scan driver configured to supply a scan signal to a scan line during a scan period of a horizontal period; a data driver configured to supply a plurality of data signals to a plurality of output lines during a data period of the horizontal period; a demultiplexer configured to transmit the data signals through the output lines to a plurality of data lines according to a plurality of control signals; and a demultiplexer controller configured to supply the control signals to the demultiplexer, with a supply order of the control signals being changed for each frame. ### Claim 2 (depends on 1) The organic light emitting display device according to claim 1, wherein a final control signal of the control signals supplied during the data period is at least partially overlapped with the scan signal. ### Claim 3 (depends on 1) The organic light emitting display device according to claim 1, wherein the demultiplexer controller is configured to supply the control signals in a first order during an i (i indicates an integer) frame period, and is configured to supply the control signals in a second order, which is reversed from the first order, during an i+1 frame period. ### Claim 4 (depends on 1) The organic light emitting display device according to claim 1, wherein the demultiplexer controller is configured to change a supplying order of the control signals for each horizontal period. ### Claim 5 (depends on 4) The organic light emitting display device according to claim 4, wherein the scan signal is supplied in a first order and then a second order, which is reversed from the first order, based on the horizontal period. ### Claim 6 An organic light emitting display device comprising, a scan driver configured to supply a scan signal to a scan line during a scan period of a horizontal period; a data driver configured to supply a plurality of data signals to a plurality of output lines during a data period of the horizontal period; a demultiplexer unit configured to transmit the data signals through the output lines to a plurality of data lines according to a plurality of control signals; and a demultiplexer control unit configured to supply the control signals to a plurality of demultiplexers while a supply order of the control signals is changed in each frame; wherein the demultiplexers comprise: a first demultiplexer configured to supply first data signals of the data signals to first data lines of the data lines coupled to a plurality of first pixels; a second demultiplexer configured to supply second data signals of the data signals to second data lines of the data lines coupled to a plurality of second pixels; and a third demultiplexer configured to supply third data signals of the data signals to third data lines of the data lines coupled to a plurality of third pixels. ### Claim 7 (depends on 6) The organic light emitting display device according to claim 6, wherein a final control signal of the control signals supplied during the data period is at least partially overlapped with the scan signal. ### Claim 8 (depends on 6) The organic light emitting display device according to claim 6, wherein a supplying order for the plurality of data signals supplied to the plurality of data lines is based on a supplying order of the control signals. ### Claim 9 (depends on 8) The organic light emitting display device according to claim 8, wherein the demultiplexer control unit is configured to supply the control signals in a first order during an i (i indicates an integer) frame period, and is configured to supply the control signals in a second order which is reversed from the first order during an i+1 frame period. ### Claim 10 (depends on 8) The organic light emitting display device according to claim 8, wherein the demultiplexer control unit is configured to change the supplying order of the control signals for each horizontal period. ### Claim 11 (depends on 10) The organic light emitting display device according to claim 10, wherein the scan signal is supplied in a first order and then a second order, which is a reverse order with respect to the first order, based on the horizontal period. ### Claim 12 An organic light emitting display device comprising, a scan driver configured to supply a scan signal to a scan line during a scan period of a horizontal period; a data driver configured to supply a plurality of data signals to a plurality of output lines during a data period of the horizontal period; a demultiplexer unit configured to transmit the plurality of data signals to a plurality of data lines according to a plurality of control signals; and a demultiplexer controller configured to supply first control signals according to a supplying order, which is changed in each frame, and configured to supply second control signals according to a supplying order, which is constant regardless of the frame, to the demultiplexer unit; wherein the demultiplexer unit comprises: a first demultiplexer configured to supply a plurality of first data signals to a first set of the data lines that are coupled to a plurality of first pixels; and a second demultiplexer configured to supply a plurality of second data signals to a second set of the data lines that are coupled to second and third pixels. ### Claim 13 (depends on 12) The organic light emitting display device according to claim 12, wherein a final first control signal of the first control signals and a final second control signal of the second control signals, which are supplied during the data period, are at least partially overlapped with the scan signal. ### Claim 14 (depends on 12) The organic light emitting display device according to claim 12, wherein the first pixels are configured to generate one color of light among red, green, and blue light. ### Claim 15 (depends on 12) The organic light emitting display device according to claim 12, wherein the second demultiplexer is configured to supply the second data signals to the plurality of data lines coupled to the second and third pixels in a constant order corresponding to the second control signals. ### Claim 16 (depends on 12) The organic light emitting display device according to claim 12, wherein the first demultiplexer is configured to supply the first data signals to the data lines coupled to the first pixels in a supplying order that changes in each frame according to the first control signals. ### Claim 17 (depends on 16) The organic light emitting display device according to claim 16, wherein the demultiplexer controller is configured to supply the first control signals in a first order during an i (i indicates an integer) frame period, and is configured to supply the first control signals in a second order, which is reversed from the first order, during an i+1 frame period. ### Claim 18 (depends on 16) The organic light emitting display device according to claim 16, wherein the demultiplexer controller is configured to change a supplying order of the first control signals for each horizontal period. ### Claim 19 (depends on 18) The organic light emitting display device according to claim 18, wherein the demultiplexer controller is configured to supply the first control signals in a first order and then a second order, which is a reverse order from the first order, based on the horizontal period.