公开(公告)号：US11011667B2

公开(公告)日：2021-05-18

申请号：US16594318

申请日：2019-10-07

Applicant: LG Display Co., Ltd.

Inventor： Dongkyu Lee ,  Seungjin Yoo

IPC: H01L31/12 ,  H01L27/12 ,  H03F3/45 ,  G06F3/042 ,  G06F3/041 ,  G09G3/36 ,  G06K9/00 ,  H01L27/32

Abstract: A display panel comprises a plurality of pixels into which pixel data of an input image is written; a plurality of data lines connected to the plurality of pixels; a plurality of photo sensors configured to sense light; a plurality of read-out lines connected to the plurality of photo sensors; and a plurality of gate lines connected to the pixels and the photo sensors, wherein the plurality of photo sensors comprises at least one first photo sensor to which a first bias voltage is supplied and at least one second photo sensor to which a second bias voltage different from the first bias voltage is supplied.

公开(公告)号：US10726775B2

公开(公告)日：2020-07-28

申请号：US16233799

申请日：2018-12-27

Applicant: LG Display Co., Ltd.

Inventor： Seungjin Yoo ,  JangHwan Kim ,  Dongwon Park ,  JoonHee Lee

IPC: G09G3/32 ,  H05K1/18 ,  H05K1/14 ,  G06F3/14 ,  G09G3/20

Abstract: A two-panel display device includes first source driver ICs arranged at one side of a first display area, supplying a first data voltage, second source driver ICs arranged at one side of a second display area arranged to adjoin the first display area, supplying a second data voltage, and at least one or more read out ICs arranged between the first display area and the second display area, being supplied with sensing voltages sensed in the first and second display areas, wherein the first source driver ICs are arranged in a direction opposite to the read out ICs with the first display area interposed therebetween, and the second source driver ICs are arranged in a direction opposite to the read out ICs with the second display area interposed therebetween.

公开(公告)号：US10242634B2

公开(公告)日：2019-03-26

申请号：US14983708

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Wookyu Sang ,  Sangjin Nam ,  Ooksang Yoo ,  Seungjin Yoo

IPC: G09G3/36 ,  G09G3/3275

Abstract: A display device is disclosed. A display panel includes a plurality of subpixels of a plurality of colors arranged in a matrix form, and a plurality of gate lines and data lines respectively connected to the subpixels. A data driver is configured to supply data voltages to the subpixels through a plurality of source channels and the data lines. A switch circuit is configured to connect one of the source channels selectively to one of the data lines during a first scan period in one horizontal period and to a different one of the data lines during a second scan period in the one horizontal period. The data driver is configured to supply data voltages of one color to the one of the source channels during both the first scan period and the second scan period in the one horizontal period.

公开(公告)号：US10222888B2

公开(公告)日：2019-03-05

申请号：US15605742

申请日：2017-05-25

Applicant: LG Display Co., Ltd.

Inventor： Sangjin Nam ,  Kyujin Kim ,  Seungjin Yoo

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1347

Abstract: A mirror display is described. The mirror display includes a plurality of first electrodes disposed on a first substrate, a plurality of sensor lines disposed on the first substrate, the plurality of sensor lines connected to the plurality of first electrodes, a plurality of second electrodes disposed on a second substrate, the plurality of second electrodes facing the first substrate, a liquid crystal layer interposed between the plurality of first electrodes and the plurality of second electrodes, a plurality of mirror driving lines on the second substrate, the plurality of mirror driving lines connected to the plurality of second electrodes, and a reflective polarizing film attached to the second substrate.

公开(公告)号：US09870749B2

公开(公告)日：2018-01-16

申请号：US14833336

申请日：2015-08-24

Applicant: LG Display Co., Ltd.

Inventor： Seungjin Yoo ,  Wookyu Sang ,  Ooksang Yoo

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2310/0224 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/023

Abstract: A display device includes a pixel array having a plurality of pixels arranged in a matrix form based on a crossing structure of data lines and gate lines, a data driver having a plurality of output channels and configured to output a data voltage, a multiplexer configured to distribute the data voltage output from the data driver to the data lines in response to first and second control signals, and a gate driver configured to output a gate pulse synchronized with the data voltage in a non-sequential manner. The first and second control signals are in antiphase, and a switching cycle of the first and second control signals is one horizontal period or two horizontal periods.

公开(公告)号：US11114034B2

公开(公告)日：2021-09-07

申请号：US16921251

申请日：2020-07-06

Applicant: LG Display Co., Ltd.

Inventor： Donggun Lee ,  Kyujin Kim ,  Taehun Kim ,  Seungjin Yoo

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display device is proposed, the display device including a display panel and a driving circuit, and pixels included in the display panel includes a driving transistor, a light emitting element, a capacitor, and first to sixth switching transistors T1 to T6. T1 senses threshold voltage of the driving transistor, the capacitor stores data voltage and a threshold voltage in both electrodes, T2 applies data voltage to the capacitor, T3 initializes the storage capacitor to reference voltage, and T4 initialize the light emitting element to reference voltage, T5 controls current flow between the driving transistor and the light emitting element, and T6 connects both electrodes of the capacitor. The driving circuit divides one frame into an initialization period, a program period, and a light emission period to drive a pixel, and stops light emission of the light emitting device and make equal voltage across the capacitor, in the initialization period.

公开(公告)号：US10303019B2

公开(公告)日：2019-05-28

申请号：US15605347

申请日：2017-05-25

Applicant: LG Display Co., Ltd.

Inventor： Sangjin Nam ,  Ooksang Yoo ,  Kyujin Kim ,  Seungjin Yoo

IPC: G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/13357

Abstract: A light valve panel and a liquid crystal display using the same are discussed. The light valve panel according to an aspect includes a liquid crystal layer, a first electrode including a block corresponding one-to-one with a light valve data line, and a second electrode facing the first electrode with the liquid crystal layer interposed therebetween. An angle between a vertical edge of the block and the light valve data line is greater than 0° and less than 90°. The liquid crystal display device according to another aspect includes a display panel, a backlight unit, and a light valve panel.

公开(公告)号：US10109241B2

公开(公告)日：2018-10-23

申请号：US15222700

申请日：2016-07-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Ooksang Yoo ,  Juyoung Lee ,  Sangjin Nam ,  Seungjin Yoo

IPC: G09G5/00 ,  G09G3/34 ,  G09G3/20 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1335

Abstract: A light valve panel and a liquid crystal display using the same are discussed. The light valve panel according to an embodiment includes a transparent electrode layer having a plurality of blocks supplied with a voltage through data input lines. The transparent electrode layer has a low resistance or has a high resistance. When a transparent electrode layer has low resistance, each block is divided into a plurality of segment electrodes connected through a resistance pattern. A voltage is distributed to the plurality of segment electrodes of each block based on the resistance pattern. When a transparent electrode layer has high resistance, the voltage distribution in each block is based on a resistance difference that varies based on a distance between voltage feeding positions.

公开(公告)号：US10748477B2

公开(公告)日：2020-08-18

申请号：US16226439

申请日：2018-12-19

Applicant: LG Display Co., Ltd.

Inventor： Dongwon Park ,  HeeJung Hong ,  JoonHee Lee ,  Seungjin Yoo ,  YongChul Kwon

IPC: G09G3/3225

Abstract: The present disclosure relates to a compensation method of a display device and the display device having a compensation value storage unit, and more particularly, to a method of performing the compensation by changing a compensation density for pixels included in the display device, and the display device having a storage unit for storing a compensation value for performing the method. According to the present disclosure, the compensation method is provided that includes dividing a display panel into a foveated area and a non-foveated area; performing high-density compensation for a plurality of pixels in the foveated area; and performing low-density compensation for a plurality of pixels in the non-foveated area.

公开(公告)号：US10248239B2

公开(公告)日：2019-04-02

申请号：US15630182

申请日：2017-06-22

Applicant: LG Display Co., Ltd.

Inventor： Byeongseong So ,  Kyujin Kim ,  Taehun Kim ,  Seungjin Yoo

IPC: G06F3/041 ,  G02F1/1333 ,  G09G3/36 ,  G06F3/044 ,  G02F1/1343 ,  G09G3/20 ,  G11C19/28

Abstract: A touch sensor integrated type display device includes: a display panel including: pixels connected to data lines and gate lines and division-driven into a plurality of panel blocks, and a plurality of touch sensors connected to the pixels, a display driving circuit providing data of an input image to the pixels in multiple display periods divided from one frame period, and a touch sensing circuit driving the touch sensors and sensing a touch input in a touch sensing period allocated between the display periods of the frame period, adjacent panel blocks being division-driven in the display periods that are separated from each other with the touch sensing period, in which the touch sensors are driven, interposed therebetween, the display driving circuit including a shift register: shifting a gate pulse in accordance with a shift clock timing, and sequentially supplying the gate pulse to the gate lines.