公开(公告)号：US20140022289A1

公开(公告)日：2014-01-23

申请号：US13711789

申请日：2012-12-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Eun Lee ,  Bum-Sik Kim ,  Seung-Tae Kim ,  Won-Kyu Ha ,  Kil-Hwan Oh

IPC: G09G3/32 ,  G09G5/10

CPC classification number: G09G3/3283 ,  G09G3/006 ,  G09G3/3233 ,  G09G3/3291 ,  G09G5/10 ,  G09G2310/0251 ,  G09G2320/043 ,  G09G2330/12

Abstract: The present invention relates to an organic light emitting diode display device capable of sensing driving current of each pixel with a simple configuration to compensate for a luminance deviation between pixels and a pixel current sensing method thereof. The organic light emitting diode display device includes a display panel including 2N (N being a natural number) pixels that share a reference line though which a reference signal is supplied and are respectively connected to 2N data lines through which data signals are applied, and a data driver for driving the 2N pixels sharing the reference line in a time division manner through the data lines, sensing currents of the time-division-driven 2N pixels as voltages through the shared reference line and outputting the sensed currents, in a sensing mode.

Abstract translation: 本发明涉及一种有机发光二极管显示装置，其能够以简单的配置来感测每个像素的驱动电流，以补偿像素之间的亮度偏差和其像素电流检测方法。 有机发光二极管显示装置包括：显示面板，其包括2N（N为自然数）像素，共享参考线，参考信号被提供，并且分别连接到2N数据线，数据信号通过该数据线施加， 数据驱动器，用于通过数据线以时分方式驱动共享参考线的2N个像素，通过共享参考线感测时分驱动的2N像素的电流作为电压，并以感测模式输出感测的电流。

公开(公告)号：US09035976B2

公开(公告)日：2015-05-19

申请号：US13711789

申请日：2012-12-12

Applicant: LG Display Co., Ltd.

Inventor： Ji-Eun Lee ,  Bum-Sik Kim ,  Seung-Tae Kim ,  Won-Kyu Ha ,  Kil-Hwan Oh

IPC: G09G3/32 ,  G09G5/10 ,  G06F3/038 ,  G09G3/00

CPC classification number: G09G3/3283 ,  G09G3/006 ,  G09G3/3233 ,  G09G3/3291 ,  G09G5/10 ,  G09G2310/0251 ,  G09G2320/043 ,  G09G2330/12

Abstract: The present invention relates to an organic light emitting diode display device capable of sensing driving current of each pixel with a simple configuration to compensate for a luminance deviation between pixels and a pixel current sensing method thereof. The organic light emitting diode display device includes a display panel including 2N (N being a natural number) pixels that share a reference line though which a reference signal is supplied and are respectively connected to 2N data lines through which data signals are applied, and a data driver for driving the 2N pixels sharing the reference line in a time division manner through the data lines, sensing currents of the time-division-driven 2N pixels as voltages through the shared reference line and outputting the sensed currents, in a sensing mode.

Abstract translation: 本发明涉及一种有机发光二极管显示装置，其能够以简单的配置来感测每个像素的驱动电流，以补偿像素之间的亮度偏差和其像素电流检测方法。 有机发光二极管显示装置包括：显示面板，其包括2N（N为自然数）像素，共享参考线，参考信号被提供，并且分别连接到2N数据线，数据信号通过该数据线施加， 数据驱动器，用于通过数据线以时分方式驱动共享参考线的2N个像素，通过共享参考线感测时分驱动的2N像素的电流作为电压，并以感测模式输出感测的电流。

公开(公告)号：US09530353B2

公开(公告)日：2016-12-27

申请号：US14012768

申请日：2013-08-28

Applicant: LG Display Co., Ltd.

Inventor： Seung-Tae Kim ,  Han-Jin Bae ,  Ho-Min Lim ,  Won-Kyu Ha ,  Hak-Su Kim

IPC: G09G3/30 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0866 ,  G09G2300/0876 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/043

Abstract: An organic electroluminescent display device includes an organic electroluminescent diode receiving a driving voltage and a first ground voltage; first and second driving thin film transistors for providing a driving current to the organic electroluminescent diode; a first switching thin film transistor receiving a data voltage and switched by an nth scan signal; a second switching thin film transistor switched by a current providing signal; a third switching thin film transistor receiving a second ground voltage and switched by a selection signal; a fourth switching thin film transistor disposed among an output terminal of the second switching thin film transistor; and a first capacitor disposed among the output terminal of the first switching thin film transistor, the gate terminal of the first driving thin film transistor and the gate terminal of the second driving thin film transistor.

Abstract translation: 有机电致发光显示装置包括接收驱动电压和第一接地电压的有机电致发光二极管; 用于向有机电致发光二极管提供驱动电流的第一和第二驱动薄膜晶体管; 接收数据电压并由第n扫描信号切换的第一开关薄膜晶体管; 通过电流提供信号切换的第二开关薄膜晶体管; 接收第二接地电压并通过选择信号切换的第三开关薄膜晶体管; 第四开关薄膜晶体管，设置在第二开关薄膜晶体管的输出端之间; 以及设置在第一开关薄膜晶体管的输出端子，第一驱动薄膜晶体管的栅极端子和第二驱动薄膜晶体管的栅极端子之间的第一电容器。