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公开(公告)号：US10679567B2
公开(公告)日：2020-06-09
申请号：US15808482
申请日：2017-11-09
Applicant: LG DISPLAY CO., LTD.
Inventor： HoYoung Lee , ChangHeon Kang
IPC: G09G3/3225 , H01L27/32 , H01L51/52 , H01L51/00 , G09G3/3291 , H01L51/56
Abstract: Provided is a display device including: a substrate including an active area, a non-active area, a bending area and a pad area; the active area including pixels to display images, each pixel including an organic light emitting layer and a thin-film transistor (TFT); the non-active area located between the active area and the bending area; and the bending area configured to be bent and located between the non-active area and the pad area, the bending area including a signal line and a power line that are made of a same material as a source electrode or a drain electrode of the TFT in the active area.
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公开(公告)号：US09953583B2
公开(公告)日：2018-04-24
申请号：US14790895
申请日：2015-07-02
Applicant: LG DISPLAY CO., LTD.
Inventor： Sanghun Yoon , ChangHeon Kang , JungMin Lee
IPC: G09G3/30 , G09G3/3291 , G09G3/3233
CPC classification number: G09G3/3291 , G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0256 , G09G2320/0214 , G09G2320/0223
Abstract: An apparatus comprising a circuit configured to control anode voltages of one or more adjacent pixel rows, which are adjacent to an Nth pixel row, to achieve minimal voltage differences between said Nth pixel row and said adjacent pixel rows to suppress luminance drops in an OLED display by minimizing leakage currents being introduced from adjacent pixel rows.
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公开(公告)号：US12141431B2
公开(公告)日：2024-11-12
申请号：US18065613
申请日：2022-12-13
Applicant: LG Display Co., Ltd.
Inventor： Junho Yeo , YongMin Ha , Hanwook Hwang , ChangHeon Kang
IPC: G06F3/0488 , G02F1/00 , G06F1/16
Abstract: Embodiments of the disclosure relate to a display device. Specifically, there is provided a display device with display quality enhanced by comprising a substrate, a display area where one or more subpixels are disposed, each of the one or more subpixels including a light emitting element positioned on the substrate and at least one transistor for driving the light emitting element, an open area obtained by removing at least a portion of the substrate in an area surrounded by the display area, and a planarization layer positioned to overlap the display area and the open area and positioned on the light emitting element.
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公开(公告)号：US10692442B2
公开(公告)日：2020-06-23
申请号：US15699562
申请日：2017-09-08
Applicant: LG DISPLAY CO., LTD.
Inventor： HoYoung Lee , ChangHeon Kang
IPC: G09G3/3291 , G09G3/3225 , H01L27/32 , H01L51/52 , H01L51/00 , H01L51/56
Abstract: A display device can include a flexible substrate including an active area, a bending area, and an area outside the bending area, the bending area configured to be bent flexibly; a plurality of pixels to display an image in the active area, each of the plurality of pixels including an organic light emitting diode (OLED); at least one signal line and at least one power line disposed on the flexible first substrate, the at least one signal line and the at least one power ling being disposed on a same layer in the bending area; and a planarization layer disposed in the active area and covering the at least one signal line and the at least one power line disposed on the same layer in the bending area, wherein the OLEDs in the plurality of pixels are disposed on the planarization layer.
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公开(公告)号：US09892678B2
公开(公告)日：2018-02-13
申请号：US14965195
申请日：2015-12-10
Applicant: LG DISPLAY CO., LTD.
Inventor： Janghoon Song , SeokHee Jeong , ChangHeon Kang , Jung-Min Lee
IPC: G09G3/3225
CPC classification number: G09G3/3225 , G09G2300/043 , G09G2300/0819 , G09G2300/0861 , G09G2310/0243 , G09G2310/0262 , G09G2320/0233 , G09G2320/0238 , G09G2320/045 , G09G2320/0626 , G09G2330/021
Abstract: Provided is an OLED display device that is in a black mode in which a threshold voltage of a driving TFT need not accurately be sensed. Further, a low voltage value of zero or less is constantly and continuously supplied to a data line during an initialization period, a sampling period, and a programming period in a pixel. As a result, when the pixel is driven in the black mode, a reference voltage and a data voltage having different values are not alternately supplied to the data line to minimize power consumption.
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Patent Agency Ranking
公开(公告)号：US09165676B2
公开(公告)日：2015-10-20
申请号：US13728191
申请日：2012-12-27
Applicant: LG DISPLAY CO., LTD.
Inventor： ChangHeon Kang
CPC classification number: G11C19/28 , G09G3/20 , G09G3/3225 , G09G3/3611 , G09G3/3677 , G09G2310/0286
Abstract: A shift register includes a plurality of stages each having a pull-up transistor, a pull-down transistor and a flip-flop, the plurality of stages outputting high level output voltages sequentially for one horizontal period in response to at least one clock signal and a start signal, and an AH control circuit connected to input terminals and output terminals of the plurality of stages to control output signals of all the stages into a high level for one frame.
Abstract translation: 移位寄存器包括多个级，每个级具有上拉晶体管，下拉晶体管和触发器，所述多级响应于至少一个时钟信号而在一个水平周期内顺序输出高电平输出电压;以及 启动信号和连接到多级的输入端子和输出端子的AH控制电路，以将所有级的输出信号控制为一帧的高电平。
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公开(公告)号：US20140085176A1
公开(公告)日：2014-03-27
申请号：US13728191
申请日：2012-12-27
Applicant: LG DISPLAY CO., LTD.
Inventor： ChangHeon Kang
CPC classification number: G11C19/28 , G09G3/20 , G09G3/3225 , G09G3/3611 , G09G3/3677 , G09G2310/0286
Abstract: A shift register includes a plurality of stages each having a pull-up transistor, a pull-down transistor and a flip-flop, the plurality of stages outputting high level output voltages sequentially for one horizontal period in response to at least one clock signal and a start signal, and an AH control circuit connected to input terminals and output terminals of the plurality of stages to control output signals of all the stages into a high level for one frame.
Abstract translation: 移位寄存器包括多个级，每个级具有上拉晶体管，下拉晶体管和触发器，所述多级响应于至少一个时钟信号而在一个水平周期内顺序输出高电平输出电压;以及 启动信号和连接到多级的输入端子和输出端子的AH控制电路，以将所有级的输出信号控制为一帧的高电平。
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公开(公告)号：US20240096277A1
公开(公告)日：2024-03-21
申请号：US18523716
申请日：2023-11-29
Applicant: LG Display Co., Ltd.
Inventor： HoYoung Lee , ChangHeon Kang
IPC: G09G3/3225 , G09G3/3291 , H10K50/805 , H10K59/131 , H10K59/80 , H10K71/00 , H10K77/10
CPC classification number: G09G3/3225 , G09G3/3291 , H10K50/805 , H10K59/131 , H10K59/805 , H10K71/00 , H10K77/111 , G09G2300/0426 , G09G2380/02 , H10K59/1201
Abstract: Provided is a display device including: a substrate including an active area, a non-active area, a bending area and a pad area; the active area including pixels to display images, each pixel including an organic light emitting layer and a thin-film transistor (TFT); the non-active area located between the active area and the bending area; and the bending area configured to be bent and located between the non-active area and the pad area, the bending area including a signal line and a power line that are made of a same material as a source electrode or a drain electrode of the TFT in the active area.
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公开(公告)号：US11282450B2
公开(公告)日：2022-03-22
申请号：US16849974
申请日：2020-04-15
Applicant: LG Display Co., Ltd.
Inventor： HoYoung Lee , ChangHeon Kang
IPC: G09G3/3225 , H01L27/32 , G09G3/3291 , H01L51/00 , H01L51/52 , H01L51/56
Abstract: Provided is a display device including: a substrate including an active area, a non-active area, a bending area and a pad area; the active area including pixels to display images, each pixel including an organic light emitting layer and a thin-film transistor (TFT); the non-active area located between the active area and the bending area; and the bending area configured to be bent and located between the non-active area and the pad area, the bending area including a signal line and a power line that are made of a same material as a source electrode or a drain electrode of the TFT in the active area.
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公开(公告)号：US10198996B2
公开(公告)日：2019-02-05
申请号：US15797281
申请日：2017-10-30
Applicant: LG Display Co., Ltd.
Inventor： Sanghun Yoon , ChangHeon Kang
IPC: G09G3/3258
Abstract: An organic light emitting diode display device and a method for driving the same are provided. The organic light emitting diode display device includes an organic light emitting diode disposed on each of a plurality of pixels, and a pixel driving circuit configured to drive the organic light emitting diode.
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