公开(公告)号：US20180095274A1

公开(公告)日：2018-04-05

申请号：US15707717

申请日：2017-09-18

Applicant: LG Display Co., Ltd.

Inventor： Joon-Hee LEE ,  Hee-Jung HONG ,  Dong-Won PARK

IPC: G02B27/00 ,  G02B27/01

CPC classification number: G02B27/0012 ,  G02B27/0172 ,  G02B2027/014 ,  G02B2027/0147 ,  G09G3/00 ,  G09G3/001 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3648 ,  G09G2310/0224 ,  G09G2310/04 ,  G09G2340/04 ,  G09G2340/0407

Abstract: A display device performs efficient driving by selectively scanning a peripheral area processed to have low resolution. The display device includes a gate driver that scans a first subset of pixel rows in a first scan block including only the peripheral area during a first frame and a second frame, and respectively scan during the first frame and the second frame a second subset of pixel rows and a third subset of pixel rows in a second scan block including the medial area and the peripheral area excluding the foveal area, and scan pixel rows of pixels in a third scan block including the foveal area, the medial area, and the peripheral area during the first frame and the second frame.

公开(公告)号：US20190096329A1

公开(公告)日：2019-03-28

申请号：US16139729

申请日：2018-09-24

Applicant: LG Display Co., Ltd.

Inventor： Yong-Chul KWON ,  Dong-Won PARK ,  Dong-Woo LEE ,  Joon-Hee LEE

IPC: G09G3/3258 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2360/16 ,  H01L27/3297

Abstract: An organic light-emitting diode (OLED) display can include a display panel including sub-pixels; a deterioration sensing unit configured to sense a deterioration state of the display panel; a power supply configured to output a high voltage for driving the sub-pixels; and a timing controller configured to: receive a deterioration sensing result including information on the deterioration state of the display panel from the deterioration sensing unit, continuously vary the high voltage based on the deterioration sensing result received from the deterioration sensing unit, and provide the varied high voltage to the sub-pixels.

公开(公告)号：US20180190196A1

公开(公告)日：2018-07-05

申请号：US15815687

申请日：2017-11-16

Applicant: LG Display Co., Ltd.

Inventor： Yong-Chul KWON ,  Jang-Hwan KIM ,  Dong-Won PARK ,  Jong-Min PARK ,  Joon-Hee LEE

IPC: G09G3/3241 ,  H01L27/32

CPC classification number: G09G3/3241 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0283 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/043 ,  H01L27/3206 ,  H01L27/3211 ,  H01L27/3244

Abstract: An OLED display device capable of preventing luminance deviation caused by a voltage drop of an EVDD is disclosed. The OLED display device generates a reference voltage, a voltage level of which varies with distance from the data driver and supplies the reference voltage to the display panel through the data driver.

公开(公告)号：US20180190192A1

公开(公告)日：2018-07-05

申请号：US15787670

申请日：2017-10-18

Applicant: LG Display Co., Ltd.

Inventor： Yong-Chul KWON ,  Jang-Hwan KIM ,  Dong-Won PARK ,  Jong-Min PARK ,  Joon-Hee LEE

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

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0861 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2330/08

Abstract: An OLED display device capable of simplifying the configuration of an external compensation circuit and reducing a compensation time is disclosed. The OLED display device includes a display panel including a pixel, a feedback compensator circuit connected to the pixel through a data line and a sensing line of the display panel, the feedback compensator circuit including an error amplifier configured to receive, through a feedback line, a feedback current flowing into the sensing line and a feedback voltage generated by a sensing resistor, from the pixel during a scan period, compare a data input voltage with the feedback voltage to adjust a data output voltage supplied to the pixel through the data line, and set a target current for driving an OLED element in the pixel, and a precharger configured to precharge the feedback compensator circuit at a front part of the scan period.