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：US20190035331A1

公开(公告)日：2019-01-31

申请号：US15858917

申请日：2017-12-29

Applicant: LG Display Co., Ltd.

Inventor： Osung DO ,  Kyoungdon WOO ,  Hyuckjun KIM ,  Jaeyoon BAE

IPC: G09G3/3233 ,  G09G3/34

CPC classification number: G09G3/3233 ,  G09G3/3413 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0693

Abstract: The present disclosure relates to an electroluminescent display device and a driving method of the same. The electroluminescent display device comprises a display panel, including a plurality of data lines, a plurality of sensing lines, a plurality of gate lines, and pixels which are arranged in matrix at each intersection between those lines to form a plurality of display lines; a sensing circuit, for sensing a pixel current in the pixels, integrating the pixel current to obtain a sensing voltage, and generating a sensing data based on the sensing voltage during a sensing operation period; and a compensation unit for calculating a compensation value for electrical characteristics of the pixels based on the sensing data.

公开(公告)号：US20180122364A1

公开(公告)日：2018-05-03

申请号：US15786050

申请日：2017-10-17

Applicant: LG Display Co., Ltd.

Inventor： Myunggi LIM ,  Kyoungdon WOO ,  Seokhyun HONG ,  Hyuckjun KIM

IPC: G10L15/01 ,  G10L15/04 ,  G10L15/08

CPC classification number: G09G3/3258 ,  G09G3/2096 ,  G09G3/3225 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/06 ,  G09G2330/12 ,  G09G2370/047

Abstract: A display device comprises a display panel that displays an image and has a data line and a sensing line, a data driver that drives the display panel, and a power supply part that delivers a driving reference voltage through a wiring line connected to the data driver. The data driver supplies a data signal to the data line, supplies the driving reference voltage through the sensing line, senses the sensing line based on an internally generated sensing reference voltage, and integrates a sensing result.

公开(公告)号：US20200380906A1

公开(公告)日：2020-12-03

申请号：US16877852

申请日：2020-05-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyuckjun KIM ,  SeungTae KIM ,  Yumin HONG

IPC: G09G3/20

Abstract: Embodiment of the present disclosure relate to a display device, a controller, a driving circuit, and a driving method capable of easily improving the motion picture response time through a multi-scanning operation of switching devices.

公开(公告)号：US20180061320A1

公开(公告)日：2018-03-01

申请号：US15685377

申请日：2017-08-24

Applicant: LG Display Co., Ltd.

Inventor： Hyuckjun KIM ,  Seokhyun HONG ,  Myunggi LIM

IPC: G09G3/3241 ,  H01L51/50 ,  H05B33/08 ,  G09G3/3291

Abstract: The present invention provides an OLED display device including a display panel, a data driver and a timing controller. The display panel has sub-pixels for displaying images. The data driver supplies a data signal to data lines of the sub-pixels. The timing controller supplies the data signal to the data driver and controls the data driver. The data driver outputs a stress prevention voltage for preventing application of stress to driving transistors included in the sub-pixels in response to a stress compensation signal output from the timing controller, and the stress prevention voltage is applied to M (M being an integer equal to or greater than 1) sub-pixels selected per frame.