公开(公告)号：US20200175925A1

公开(公告)日：2020-06-04

申请号：US16688488

申请日：2019-11-19

Applicant: LG Display Co., Ltd.

Inventor： Sanghoon LEE ,  Hyunwook KIM ,  Sangyun KIM

IPC: G09G3/3258

Abstract: The present disclosure relates to a display device and sensing method. A display device includes a plurality of pixels. At least one of the pixels includes an organic light emtting diode (OLED) and a driving transistor. The driving transistor is connected in series with the OLED with a node between the OLED and the driving transistor. During a programming period the driving transistor is turned off and the OLED is turned on. During a discharging period the driving transistor is turned off and a voltage charged on the node during the programming period is discharged through the OLED. During a sensing period the OLED is turned off and the driving transistor is turned on to generate a pixel current to be sensed.

公开(公告)号：US20190378459A1

公开(公告)日：2019-12-12

申请号：US16422388

申请日：2019-05-24

Applicant: LG Display Co., Ltd.

Inventor： Hyunwook KIM ,  Hyuckjun KIM ,  Kyungrok KIM ,  Sanghoon LEE

IPC: G09G3/3258

Abstract: The organic light emitting display device according to the present disclosure comprises an input unit configured to receive image data input at a variable frame frequency, a sensing control unit configured to generate a sensing control signal for sensing pixels to which the image data is to be applied, in a vertical blank period varying according to the variable frame frequency and a TFT compensating unit configured to sense driving characteristics of a driving element included in the pixels according to the sensing control signal to output a first sensing result. Among one variable frame period, a vertical active period for applying the image data to the pixels is fixed and the vertical blank period in which no image data is applied to the pixels is varied according to the variable frame frequency.

公开(公告)号：US20180182288A1

公开(公告)日：2018-06-28

申请号：US15827669

申请日：2017-11-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungrok KIM ,  Taegung KIM ,  Hyunwook KIM

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

Abstract: An electroluminescent display and a driving device of the electroluminescent display are discussed. The electroluminescent display includes first and second active areas divided from a screen, a first timing controller configured to transmit the pixel data of the first active area to be displayed on the first active area to a first driving circuit writing pixel data to pixels of the first active area, a second timing controller configured to transmit the pixel data of the second active area to be displayed on the second active area to a second driving circuit writing pixel data to pixels of the second active area, and a bridge circuit configured to distribute an input image to the first and second timing controllers, detect a logo data block from the input image, and transmit the logo data block to the first and second timing controllers.