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公开(公告)号：US11966137B2
公开(公告)日：2024-04-23
申请号：US18127330
申请日：2023-03-28
Applicant: LG Display Co., Ltd.
Inventor： Junghyun Lee
IPC: G02F1/1368 , G02F1/1362
CPC classification number: G02F1/1368 , G02F1/136209 , G02F1/136222 , G02F1/136286
Abstract: A display device can include a first substrate having an upper surface which is a display surface and a lower surface facing the upper surface; an active layer disposed on a lower surface of the first substrate and including a channel part, a first connection part connected to one side of the channel part, and a second connection part connected to the other side of the channel part; a gate electrode disposed under the active layer and overlapping with the channel part; a second substrate disposed under the above gate electrode; a liquid crystal layer disposed between the first substrate and the second substrate; and a backlight provided under the second substrate. Also, the gate electrode can be disposed between a lower surface of the channel part of the active layer and the backlight, in order to protect the channel part from light emitted from the backlight.
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公开(公告)号：US10534477B2
公开(公告)日：2020-01-14
申请号：US15798011
申请日：2017-10-30
Applicant: LG DISPLAY CO., LTD.
Inventor： Yeonkyung Kim , Taewoong Moon , Junghyun Lee
Abstract: A gate driver and a display device having an in-cell touch sensor using the gate driver are disclosed. The gate driver includes a shift register configured to sequentially supply gate pulses to gate lines of a display panel. The shift register includes an (N−1)th stage, where N is a positive integer equal to or greater than 2, configured to output an (N−1)th gate pulse, an Nth stage configured to output an Nth gate pulse, and a hold circuit configured to hold an output voltage of the (N−1)th stage during a predetermined time and supply the output voltage to the Nth stage.
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公开(公告)号：US11263988B2
公开(公告)日：2022-03-01
申请号：US15723958
申请日：2017-10-03
Applicant: LG Display Co., Ltd.
Inventor： Yeonkyung Kim , Taewoong Moon , Junghyun Lee
IPC: G11C19/00 , G09G3/36 , G09G3/3266 , G06F3/041 , G11C19/28
Abstract: The present disclosure relates to a gate driving circuit and a display device using the circuit. A gate driving circuit according to an aspect of the present disclosure comprises a Q node controller, a QB node controller, and an output unit generating a pulse-type output signal by controlling charging and discharging of an output terminal according to the voltages of the Q node and the QB node, and the QB node controller controls the voltage of the QB node in an alternating manner during a non-scan period in which the Q node controller outputs a low level voltage for the Q node.
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Patent Agency Ranking
4.发明授权公开(公告)号：US09817240B2
公开(公告)日：2017-11-14
申请号：US13682427
申请日：2012-11-20
Applicant: LG DISPLAY CO., LTD.
Inventor： Dhang Kwon , MyoungHo Lee , HangSup Cho , Junghyun Lee
IPC: G02B27/26
CPC classification number: G02B27/26 , Y10T29/49885
Abstract: Discussed are a glass patterned retarder stereoscopic 3D display device and a method for fabricating the same. The device is capable of enhancing a viewing angle in upper and lower directions and an aperture ratio by forming light shielding patterns on a rear surface of a color filter substrate. Further, the device is capable of preventing scratches occurring on the light shielding patterns due to a polishing belt, by forming high hardness polymer on the light shielding patterns and removing stair-steps of a rear indium tin oxide (ITO).
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公开(公告)号：US20240008312A1
公开(公告)日：2024-01-04
申请号：US18209812
申请日：2023-06-14
Applicant: LG Display Co., Ltd.
Inventor： Junghyun Lee
IPC: H10K59/121 , H10K59/126
CPC classification number: H10K59/1216 , H10K59/1213 , H10K59/126
Abstract: An organic light emitting display device using a hybrid type thin film transistor includes a conductive pattern disposed above a semiconductor pattern and having a higher etch resistance than an inorganic thin film, thus simplifying the manufacturing process of a hybrid type thin film transistor array substrate requiring a plurality of layers and improving the performance of the thin film transistor formed on the array substrate. In addition, configurations of various types of storage capacitors including conductive patterns are provided.
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公开(公告)号：US09824634B2
公开(公告)日：2017-11-21
申请号：US14973656
申请日：2015-12-17
Applicant: LG Display Co., Ltd.
Inventor： Koichi Miwa , Seong-Eok Han , Junghyun Lee , Yonghan Jo
IPC: G09G3/30 , G09G3/3258 , G09G3/3233
CPC classification number: G09G3/3258 , G09G3/3233 , G09G2300/0439 , G09G2310/027 , G09G2310/0286 , G09G2310/08 , G09G2320/0233 , G09G2320/0276 , G09G2320/0295 , G09G2320/045 , G09G2320/0673 , G09G2340/0428
Abstract: An OLED display device includes an OLED display panel on which subpixels are disposed, a gamma reference voltage supply circuit supplying gamma reference voltages that are variable during driving and when sensing a threshold voltage, and a data driver supplying data voltages based on the gamma reference voltages to data lines. The data driver senses a voltage of a sensing node within each of the subpixels in sensing mode. A timing controller controls the data driver, and performs a compensation process based on the voltage sensed by the data driver.
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公开(公告)号：US10573225B2
公开(公告)日：2020-02-25
申请号：US15720869
申请日：2017-09-29
Applicant: LG DISPLAY CO., LTD.
Inventor： Junghyun Lee , Taewoong Moon , Yeonkyung Kim
Abstract: A gate drive circuit and a display device are provided. The gate drive circuit comprises: a first stage that outputs a first gate pulse at a first output terminal by increasing a voltage at the first output terminal when a first Q node is charged in response to receiving a first carry signal at a first start terminal, and decreasing the voltage at the first output terminal when a first QB node is charged; and a second stage that outputs a second gate pulse at a second output terminal and outputs a second carry signal at a third output terminal by increasing voltages at the second and third output terminals when a second Q node is charged in response to receiving the first carry signal at a second start terminal, and decreasing the voltages at the second and third output terminals when a second QB node is charged.
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公开(公告)号：US20160189623A1
公开(公告)日：2016-06-30
申请号：US14973656
申请日：2015-12-17
Applicant: LG Display Co., Ltd.
Inventor： Koichi Miwa , Seong-Eok Han , Junghyun Lee , Yonghan Jo
IPC: G09G3/32
CPC classification number: G09G3/3258 , G09G3/3233 , G09G2300/0439 , G09G2310/027 , G09G2310/0286 , G09G2310/08 , G09G2320/0233 , G09G2320/0276 , G09G2320/0295 , G09G2320/045 , G09G2320/0673 , G09G2340/0428
Abstract: An OLED display device includes an OLED display panel on which subpixels are disposed, a gamma reference voltage supply circuit supplying gamma reference voltages that are variable during driving and when sensing a threshold voltage, and a data driver supplying data voltages based on the gamma reference voltages to data lines. The data driver senses a voltage of a sensing node within each of the subpixels in sensing mode. A timing controller controls the data driver, and performs a compensation process based on the voltage sensed by the data driver.
Abstract translation: OLED显示装置包括其上设置有子像素的OLED显示面板，伽马参考电压供应电路，其提供在驱动期间可变的伽马参考电压和感测阈值电压时的伽马参考电压;以及基于伽马参考电压提供数据电压的数据驱动器 到数据线。 数据驱动器在感测模式下感测每个子像素内的感测节点的电压。 定时控制器控制数据驱动器，并且基于由数据驱动器感测的电压来执行补偿处理。
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