公开(公告)号：US10102802B2

公开(公告)日：2018-10-16

申请号：US15393662

申请日：2016-12-29

Applicant: LG Display Co., Ltd.

Inventor： Yongchul Kwon ,  Dongwon Park ,  Jongmin Park ,  Joonhee Lee

IPC: G09G5/10 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3266

Abstract: An organic light-emitting display device including a display panel, a power supply, a selective driver and a gamma change driver is disclosed. The display panel includes sub-pixels. The power supply is configured to output a drive voltage for driving the sub-pixels. The selective driver is configured to generate a control signal to enable selective drive between first and second driving schemes for a drive transistor in each sub-pixel, wherein the first and second schemes employ saturation and linear regions of the drive voltage curve respectively. The gamma change driver is configured to change a gamma based on the driving scheme selected by the selective driver.

公开(公告)号：US09953565B2

公开(公告)日：2018-04-24

申请号：US14794594

申请日：2015-07-08

Applicant: LG Display Co., Ltd.

Inventor： Joonhee Lee ,  Sunghoon Kim ,  Jongmin Park

IPC: G09G3/32 ,  G09G3/3208 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3258

CPC classification number: G09G3/3208 ,  G09G3/2022 ,  G09G3/3225 ,  G09G3/3258 ,  G09G3/3266 ,  G09G2300/0413 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/0204 ,  G09G2320/0219 ,  G09G2320/0223 ,  G09G2320/0233

Abstract: An organic light emitting diode display and a method for driving the same are disclosed. The organic light emitting diode display includes a display panel including a plurality of pixels, a display panel driver configured to drive signal lines of the display panel, and a timing controller configured to divide one frame into a plurality of subframes, divide data of an input image at each bit, map the data of the input image to the plurality of subframes, control an operation of the display panel driver, and adjust data addressing speeds of the plurality of subframes for adjusting the emission times of the upper and lower display lines of the display panel differently.

公开(公告)号：US10902795B2

公开(公告)日：2021-01-26

申请号：US16728648

申请日：2019-12-27

Applicant: LG Display Co., Ltd.

Inventor： Jongmin Park ,  Dongwon Park ,  Yongchul Kwon

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3225 ,  H01L27/32

Abstract: A pixel for an organic light emitting diode (OLED) display and an OLED display are discussed. The pixel includes a driving transistor, a first transistor, a scan transistor, a first emission control transistor, and an initialization control transistor. The driving transistor includes a gate electrode connected to a first node, a drain electrode connected to a second node, and a source electrode connected to a third node. The first transistor is connected between the first node and the second node. The scan transistor is connected between the third node and a data line. The first emission control transistor is connected between the second node and an anode electrode of an organic light emitting diode. The initialization control transistor is connected between an input terminal of an initialization voltage and the anode electrode of the organic light emitting diode.