公开(公告)号：US10373563B2

公开(公告)日：2019-08-06

申请号：US15279408

申请日：2016-09-28

Applicant: LG Display Co., Ltd.

Inventor： Youngju Park ,  Sungwook Yoon

IPC: G09G3/3233 ,  G09G3/3266

Abstract: Disclosed is an Organic Light Emitting Diode (OLED) display including pixels and a shift register for driving transistors arranged in the pixels. The pixels include a first group of pixels disposed on a first row, and a second group of pixels disposed on a second row. The shift register applies a first scan signal to the first group of pixels and the second group of pixels simultaneously. In addition, the shift register applies a second scan signal to the first group of pixels and the second group of pixels sequentially.

公开(公告)号：US10559261B2

公开(公告)日：2020-02-11

申请号：US16155422

申请日：2018-10-09

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Chang ,  Juhnsuk Yoo ,  Jungchul Kim ,  Sungwook Yoon ,  Hoyoung Ko

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

Abstract: An electroluminescent display is disclosed. An electroluminescent display comprises a display panel including a plurality of pixels, each of the plurality of pixels including subpixels. A pixel circuit of each subpixels includes a driving transistor configured to drive the electroluminescent diode, a first switching transistor configured to supply a first voltage to a gate of the driving transistor in response to a first scan signal, a second switching transistor configured to supply a second voltage to the gate of the driving transistor in response to a second scan signal, a third switching transistor configured to supply the second voltage to a first electrode of the driving transistor in response to the second scan signal, a fourth switching transistor configured to supply a first supply voltage to a second electrode of the driving transistor in response to an emission control signal, a first capacitor between a first node connected to the gate electrode of the driving transistor and a second node connected to the second electrode of the driving transistor, and a second capacitor between the second node and a power supply line supplied with the second voltage or the first supply voltage.

公开(公告)号：US09646535B2

公开(公告)日：2017-05-09

申请号：US14937460

申请日：2015-11-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungwook Yoon ,  Youngju Park

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/0286 ,  G09G2320/045

Abstract: An organic light emitting display device according to an embodiment includes a display panel including n (n is a natural number) number of horizontal lines, an ith (i is a natural number satisfying a condition of 1

公开(公告)号：US10127859B2

公开(公告)日：2018-11-13

申请号：US15621866

申请日：2017-06-13

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Chang ,  Juhnsuk Yoo ,  Jungchul Kim ,  Sungwook Yoon ,  Hoyoung Ko

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

Abstract: An electroluminescent display is disclosed. An electroluminescent display comprises a display panel including a plurality of pixels, each of the plurality of pixels including subpixels. A pixel circuit of each subpixels includes a driving transistor configured to drive the electroluminescent diode, a first switching transistor configured to supply a first voltage to a gate of the driving transistor in response to a first scan signal, a second switching transistor configured to supply a second voltage to the gate of the driving transistor in response to a second scan signal, a third switching transistor configured to supply the second voltage to a first electrode of the driving transistor in response to the second scan signal, a fourth switching transistor configured to supply a first supply voltage to a second electrode of the driving transistor in response to an emission control signal, a first capacitor between a first node connected to the gate electrode of the driving transistor and a second node connected to the second electrode of the driving transistor, and a second capacitor between the second node and a power supply line supplied with the second voltage or the first supply voltage.

公开(公告)号：US10004124B1

公开(公告)日：2018-06-19

申请号：US15614305

申请日：2017-06-05

Applicant: LG Display Co., Ltd.

Inventor： Hoyoung Ko ,  Juhnsuk Yoo ,  Sungwook Yoon ,  Sungwook Chang

IPC: H01J1/62 ,  H05B33/10 ,  G09G3/30 ,  H01L25/04 ,  H01L51/52 ,  H01L27/32 ,  G09G3/14

Abstract: Disclosed is a display device having a display panel including pixels, a pixel circuit of each of the pixels comprising a capacitor connected between a first and second node, a driving transistor connected to the second node, a third node, and a first supply voltage, a first transistor supplying the first supply voltage or a reference voltage to the first node, a second transistor supplying the reference voltage to the second node, a third transistor supplying a data voltage to the first node, a fourth transistor forming a current path between the second and third nodes, a fifth transistor supplying the reference voltage or a reset voltage to the fourth node, a sixth transistor supplying the reference voltage to the first node, a seventh transistor forming a current path between the third and fourth nodes, and a diode connected to the fourth node and a second supply voltage.

公开(公告)号：US09990883B2

公开(公告)日：2018-06-05

申请号：US15226047

申请日：2016-08-02

Applicant: LG Display Co., Ltd.

Inventor： Youngju Park ,  Sungwook Yoon ,  Sehwan Na

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262

Abstract: An organic light emitting display comprises a display panel having data lines, scan lines, emission signal lines, and pixels. The display also comprises a data driver configured to provide a data voltage corresponding to an input image to one of the data lines connected to a pixel and a gate driver configured to provide an N-th scan pulse to an N-th scan line to charge the pixel with the data voltage during a scan period within a frame period. The display further comprises an emission driver configured to receives shift clocks and the N-th scan pulse from the gate driver to provide an N-th emission control signal to the N-th emission signal line and to control a current path through the OLED based on the N-th emission control signal during a duty driving period following the scan period within a frame period.