公开(公告)号：US20190096335A1

公开(公告)日：2019-03-28

申请号：US16131858

申请日：2018-09-14

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Cheol Min Kim ,  Sung Hoon Bang

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3258 ,  G09G3/3233 ,  H01L27/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2330/00 ,  H01L27/3276

Abstract: An organic light emitting display device includes a driving transistor having one electrode connected with a node, and another electrode connected with an organic light emitting element, a first control transistor for receiving a first driving voltage through one electrode, and having another electrode connected with the node, a second control transistor for receiving a second driving voltage through one electrode, and having another electrode connected with the node, and a sensing transistor having one electrode connected between the another electrode of the driving transistor and the organic light emitting element, wherein the sensing transistor is turned on in a sensing period, the first control transistor is turned off in the sensing period, and the second control transistor is turned on in the sensing period.

公开(公告)号：US09978969B2

公开(公告)日：2018-05-22

申请号：US15632607

申请日：2017-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeong Hwan Shin ,  Sung Hwan Kim ,  Sung Hoon Bang

IPC: H03M1/12 ,  H01L51/50 ,  G02F1/1333 ,  G02F1/295 ,  G02F1/163 ,  H04N17/00 ,  H03M1/00 ,  H04N9/04

CPC classification number: H01L51/50 ,  G02F1/133365 ,  G02F1/295 ,  G02F2001/1635 ,  G09G2310/0264 ,  G09G2370/08 ,  H03M1/00 ,  H03M1/12 ,  H03M1/123 ,  H04N9/045 ,  H04N17/002

Abstract: A display device that may compensate for characteristic deviations among pixels and impact picture quality is provided. The display device includes a plurality of pixels, a plurality of sensing lines connected to the pixels, a sensing circuit configured to extract characteristic information of the pixels through the sensing lines. The sensing circuit includes a plurality of analog-to-digital converters (ADC) to convert the characteristic information into digital sensing data and to output the digital sensing data. A compensating circuit is configured to compare output values of the plurality of ADCs, to set a correction value, and to convert first data into second data based on the sensing data and the correction value. A data driver is configured to generate data signals corresponding to the second data and to output the data signals to the pixels.

公开(公告)号：US20180061316A1

公开(公告)日：2018-03-01

申请号：US15662187

申请日：2017-07-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jeong Hwan Shin ,  Sung Hoon Bang ,  Sung Hwan Kim

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2330/02

Abstract: A display device is configured to be driven in a period that is divided into a driving period and a sensing period. The display device includes pixels including driving transistors coupled to scan lines, data lines, and sensing lines, a scan driver configured to supply scan signals to the scan lines, a data driver configured to supply at least one of a reference voltage and data signals to the data lines, a sensing unit configured to sense the characteristic information via the sensing lines during the sensing period, control lines formed in parallel with the scan lines, a first switch coupled between an n-th scan line and an n-th control line, and a second switch coupled between the n-th control line and an (n+1)-th scan line and configured such that a turn-on period of the second switch does not overlap a turn-on period of the first switch.

公开(公告)号：US09786221B2

公开(公告)日：2017-10-10

申请号：US14619033

申请日：2015-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Min Seok Bae ,  Sung Hoon Bang

IPC: G09G3/30 ,  G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2320/048

Abstract: An organic light emitting display device includes: a display panel including a plurality of sub-pixels, each of the sub-pixels including an organic light emitting device to be light-emitted by a data current based on a data voltage; a memory to store accumulated data to be displayed on each of the sub-pixels; a deterioration compensator including: a compensation scheme determiner; a compensation amount calculator; and a modulation data generation generator; a timing controller to arrange the modulation data of each of the sub-pixels as pixel data according to a pixel arrangement structure of the display panel; and a data driver to convert the pixel data into the data voltage.