公开(公告)号：US11663952B2

公开(公告)日：2023-05-30

申请号：US17551896

申请日：2021-12-15

Applicant: LG DISPLAY CO., LTD.

Inventor： Minsu Kim ,  Jungchul Kim

IPC: G09G3/20

CPC classification number: G09G3/2074 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2320/064

Abstract: A display device include a substrate on which a plurality of first sub-pixels disposed in first columns and a plurality of second sub-pixels disposed in second columns are defined; a plurality of data lines disposed on one sides of the plurality of first sub-pixels and the other sides of the plurality of second sub-pixels; and a plurality of parking voltage lines disposed between the plurality of first sub-pixels and the plurality of second sub-pixels, wherein the plurality of parking voltage lines are configured to be electrically connected to some of the plurality of data lines. Accordingly, by applying the same parking voltage to the parking voltage lines and the data lines during a blank frame, flicker can be reduced.

公开(公告)号：US09947269B2

公开(公告)日：2018-04-17

申请号：US15164554

申请日：2016-05-25

Applicant: LG Display Co., Ltd.

Inventor： Sanghoon Jung ,  Jungchul Kim ,  Junyoung Kwon ,  Jungyoup Suk ,  Kiyoung Sung

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/2085 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0216 ,  G09G2310/0264 ,  G09G2320/045 ,  G09G2330/021 ,  G09G2330/028

Abstract: An organic light emitting display comprises a display panel having a plurality of pixels, a gate drive circuit that drives scan lines and emission lines on the display panel, and a data drive circuit that drives data lines on the display panel. Each of the pixels is arranged in an nth row. A single frame for the organic light emitting display comprises an initial period in which the gate voltage of a driving transistor is initialized, a sampling period for compensating the threshold voltage of the driving transistor, and a light emission period in which an organic light emitting diode emits light. A value corresponding to an image signal to be displayed by the organic light emitting diode is applied to a data line during the sampling period, and an initial voltage is applied to one electrode of a capacitor during the initial period.

公开(公告)号：US10692430B2

公开(公告)日：2020-06-23

申请号：US16109616

申请日：2018-08-22

Applicant: LG Display Co., Ltd.

Inventor： Jungchul Kim ,  Junyoung Kwon ,  Jungyoup Suk ,  Heeyoung An

IPC: G09G3/3233

Abstract: In pixels included in a display panel of an light emitting diode display, each pixel on an nth pixel row, where n is a natural number, includes a light emitting diode including an anode electrode connected to a node C and a cathode electrode connected to an input terminal of a low potential driving voltage, a driving TFT including a gate electrode connected to a node A, a drain electrode connected to a node B, and a source electrode connected to a node D, a first TFT connected between the node A and the node B, a second TFT connected to the node C, a third TFT connected between a data line and the node D, a fourth TFT connected between an input terminal of a high potential driving voltage and the node B, and a fifth TFT connected between the node D and the node C.

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.