公开(公告)号：US20140320465A1

公开(公告)日：2014-10-30

申请号：US14263733

申请日：2014-04-28

Applicant: LG Display Co., Ltd.

Inventor： Daeseok OH ,  Saichang YUN ,  Juyoung LEE ,  Bogun SEO ,  Yousung NAM ,  Yonghwa PARK

IPC: G09G5/18

CPC classification number: G09G3/3688 ,  G09G2310/0227 ,  G09G2310/0248 ,  G09G2310/0297 ,  G09G2310/067 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display device for low speed drive includes a display panel including gate lines, data lines, and pixels respectively formed at crossings of the gate lines and the data lines, a source driver supplying data voltages to the data lines, a gate driver supplying a gate pulse to the gate lines, and a timing controller which time-divides one frame into n sub-frames, where n is a positive integer equal to or greater than 2, groups the gate lines into n gate groups, controls an operation of the gate driver in each of the n sub-frames to complete a scan operation of a corresponding gate group during a scan period of each of the n sub-frames, generates a buffer operation control signal, and cuts off a driving power source applied to buffers of the source driver during a skip period excluding the scan period from each of the n sub-frames.

Abstract translation: 用于低速驱动的显示装置包括显示面板，包括分别在栅极线和数据线的交叉处形成的栅极线，数据线和像素，向数据线提供数据电压的源极驱动器，提供栅极的栅极驱动器 脉冲到栅极线，以及定时控制器，其将一帧时间分割成n个子帧，其中n是等于或大于2的正整数，将栅极线组合成n个栅极组，控制栅极的操作 驱动器，以在n个子帧中的每一个的扫描周期期间完成对应的门组的扫描操作，生成缓冲器操作控制信号，并且切断施加到所述n个子帧的缓冲器的驱动电源 在除了n个子帧中的每一个的扫描周期之外的跳过期间的源驱动器。

公开(公告)号：US20190079336A1

公开(公告)日：2019-03-14

申请号：US16189688

申请日：2018-11-13

Applicant: LG Display Co., Ltd.

Inventor： Yousung NAM ,  Changseung WOO ,  Soonhwan HONG

IPC: G02F1/1333 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/1343 ,  H01L27/12 ,  H01L29/66 ,  H01L29/786

Abstract: A display device optimized to operate in a low frame rate mode under certain predetermined conditions is provided. To reduce pixel discharge during the low frame rate mode, the display device employees the TFTs with metal oxide semiconductor layer, the optical alignment layer with an upper portion and a lower portion having different resistivity. In addition, a passivation layer is provided between the optical alignment layer and the pixel or the common electrode for compensating the low resistivity of the lower portion of the optical alignment layer. As such, various visual defects associated with the pixel discharge can be reduced even when the display device is operating under the low frame rate mode.

公开(公告)号：US20180096666A1

公开(公告)日：2018-04-05

申请号：US15710583

申请日：2017-09-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Moonsoo CHUNG ,  Yousung NAM

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3696 ,  G09G2300/0804 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0673 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A liquid-crystal display device and a driving method thereof are disclosed. The driving method of the liquid-crystal display device comprises: generating first and second power supply voltages; generating gamma-compensated voltages based on the first and second power supply voltages; converting data of an input image to the gamma-compensated voltages to output data voltages; distributing, by a multiplexer, the data voltages output from the data driver to a plurality of data lines; and varying at least one of the first and second power supply voltages at a given time interval.

公开(公告)号：US20210201830A1

公开(公告)日：2021-07-01

申请号：US17125099

申请日：2020-12-17

Applicant: LG Display Co., Ltd.

Inventor： Yousung NAM ,  Youngchul KWON

IPC: G09G3/3291

Abstract: Disclosed is an organic light-emitting diode display device including: a display panel in which pixels adjacent to each other are paired and arranged to share a single data line in pixel areas defined by gate and data lines; a gate driver configured to drive the plurality of gate lines; a data driver configured to output a data voltage to data voltage output channels on the basis of an arrangement of pixels; a data switcher configured to alternately select a data line and to electrically connect the data line with the data voltage output channel of the data driver; and a timing controller configured to control the data switcher and the gate and data drivers, thereby making it possible to drive a data driving circuit at high driving frequency and to reduce a deterioration of image quality and image distortion even in a simplified structure of the data driving circuit.

公开(公告)号：US20160026044A1

公开(公告)日：2016-01-28

申请号：US14808825

申请日：2015-07-24

Applicant: LG Display Co., Ltd.

Inventor： Yousung NAM ,  Changseung WOO ,  Soonhwan HONG

IPC: G02F1/1343 ,  H01L29/786 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/1333 ,  H01L29/66 ,  H01L27/12

CPC classification number: G02F1/133345 ,  G02F1/13338 ,  G02F1/1337 ,  G02F1/133723 ,  G02F1/133788 ,  G02F1/134363 ,  G02F1/1368 ,  G02F2001/134372 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1259 ,  H01L29/66969 ,  H01L29/7869

Abstract: A display device optimized to operate in a low frame rate mode under certain predetermined conditions is provided. To reduce pixel discharge during the low frame rate mode, the display device employees the TFTs with metal oxide semiconductor layer, the optical alignment layer with an upper portion and a lower portion having different resistivity. In addition, a passivation layer is provided between the optical alignment layer and the pixel or the common electrode for compensating the low resistivity of the lower portion of the optical alignment layer. As such, various visual defects associated with the pixel discharge can be reduced even when the display device is operating under the low frame rate mode.

Abstract translation: 提供了在某些预定条件下优化以低帧速率模式操作的显示装置。 为了在低帧速率模式期间减少像素放电，显示装置雇用具有金属氧化物半导体层的TFT，具有上部的光学取向层和具有不同电阻率的下部。 此外，在光学取向层和像素或公共电极之间设置钝化层，以补偿光学取向层的下部的低电阻率。 因此，即使当显示装置在低帧速率模式下操作时，也可以减少与像素放电相关联的各种视觉缺陷。