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公开(公告)号:US20220189403A1
公开(公告)日:2022-06-16
申请号:US17404721
申请日:2021-08-17
Applicant: LG DISPLAY CO., LTD.
Inventor: Min-Gu KANG , SeungChan CHOI , Younghyun KO
IPC: G09G3/3258 , G09G3/3291
Abstract: A display device and a driving method for a display device are provided. The display device uses a second storage capacitor and stably moves the threshold voltage of the driving transistor to a positive value in a diode-connected driving circuit. Accordingly, a compensation performance of a threshold voltage of a driving transistor may be improved.
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公开(公告)号:US20180005601A1
公开(公告)日:2018-01-04
申请号:US15634576
申请日:2017-06-27
Applicant: LG DISPLAY CO., LTD.
Inventor: KiTae KIM , SeungChan CHOI , JunHo LEE , SungBin RYU , Siu YOON
IPC: G09G5/10 , G09G3/3233 , G09G3/3266
CPC classification number: G09G5/10 , G09G3/3233 , G09G3/3266 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2310/0262 , G09G2310/061 , G09G2320/0247 , G09G2320/043 , G09G2330/021
Abstract: Provided is an organic light emitting display. The organic light emitting display can include a gate driving circuit configured to supply a gate signal through each of a plurality of gate lines connected to a display panel, and a luminance control unit between the gate driving circuit and the display panel and electrically connected to the plurality of gate lines and a power supply line. A gate signal is supplied to the pixels in a distributed manner during a plurality of refresh periods. Therefore, it is possible to reduce a luminance decrease in the pixels during the entire refresh period.
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公开(公告)号:US20220139318A1
公开(公告)日:2022-05-05
申请号:US17408136
申请日:2021-08-20
Applicant: LG Display Co., Ltd.
Inventor: Min-Gu KANG , SeungChan CHOI
IPC: G09G3/3233
Abstract: Embodiments of the present disclosure relate to a display device and a driving method of the display device. More particularly, a subpixel includes a first control transistor for controlling a connection between a body of a driving transistor and a first node of the driving transistor, and a second control transistor for controlling a connection between the body of the driving transistor and a second node of the driving transistor, so that it is possible to improve mobility and on-current performance while increasing a S-factor of the driving transistor.
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公开(公告)号:US20180005575A1
公开(公告)日:2018-01-04
申请号:US15634736
申请日:2017-06-27
Applicant: LG DISPLAY CO., LTD.
Inventor: JunHo LEE , SeungChan CHOI , SungBin RYU , KiTae KIM , Siu YOON
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G3/3225 , G09G2300/0852 , G09G2300/0861 , G09G2310/0262 , G09G2310/08 , G09G2320/0247 , G09G2320/045 , G09G2330/028 , G09G2360/16
Abstract: Provided is an organic light emitting display (OLED) device that can include a timing controller configured to generate control signals to be applied to a plurality of pixels, each pixel including a pixel driving circuit. An adjusted initialization voltage is input to a circuit driving circuit of the OLED device during an initialization period. Thus, a delay of a current flowing in an organic light emitting diode can be improved such that a flicker phenomenon can be suppressed or minimized.
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公开(公告)号:US20240224592A1
公开(公告)日:2024-07-04
申请号:US18454273
申请日:2023-08-23
Applicant: LG Display Co., Ltd.
Inventor: DaeHwan KIM , Jaeman JANG , Uyhyun CHOI , Min-Gu KANG , KyungChul OK , SeungChan CHOI
IPC: H10K59/121 , G09G3/3233 , H10K59/12 , H10K59/126
CPC classification number: H10K59/1213 , G09G3/3233 , H10K59/1201 , H10K59/126 , G09G2300/0842
Abstract: A thin film transistor, a manufacturing method of the thin film transistor and display apparatus including the thin film transistor are provided. The thin film transistor comprises an active layer and a gate electrode that partially overlaps the active layer, wherein the active layer includes a channel portion, a first connection portion contacting one side, namely a first side, of the channel portion and a second connection portion spaced apart from the first connection portion and contacting the other side, namely a second side of the channel portion, wherein the channel portion includes a first channel part overlapping the gate electrode and a second channel part not overlapping the gate electrode.
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公开(公告)号:US20230111218A1
公开(公告)日:2023-04-13
申请号:US17963101
申请日:2022-10-10
Applicant: LG Display Co., Ltd.
Inventor: Min-Gu KANG , Younghyun KO , SeungChan CHOI , Jaeman JANG
IPC: H01L29/786 , H01L27/32 , H01L27/12
Abstract: A thin film transistor and a display device comprising the same are provided. The thin film transistor comprises an active layer, and a gate electrode at least partially overlapped with the active layer, wherein the active layer includes a channel portion overlapped with the gate electrode, a first connection portion that is in contact with one side of the channel portion, and a second connection portion that is in contact with the other side of the channel portion, the channel portion includes a first channel area and a second channel area, each of the first channel area and the second channel area is extended from the first connection portion to the second connection portion, and a length of the first channel area is shorter than that of the second channel area.
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公开(公告)号:US20220399464A1
公开(公告)日:2022-12-15
申请号:US17751975
申请日:2022-05-24
Applicant: LG DISPLAY CO., LTD.
Inventor: Younghyun KO , SeungChan CHOI , Min-Gu KANG , Jaeman JANG
IPC: H01L29/786 , H01L27/32
Abstract: A thin film transistor substrate is provided, which comprises a substrate, a first thin film transistor on the substrate, and a second thin film transistor on the substrate, wherein the first thin film transistor includes a first active layer having a first channel portion, a first gate insulating layer on the first active layer, a first gate electrode on the first gate insulating layer, a first source electrode connected to the first active layer, and a first drain electrode spaced apart from the first source electrode and connected to the first active layer, the second thin film transistor includes a conductive material layer on the substrate, a first buffer layer on the conductive material layer, a second active layer having a second channel portion on the first buffer layer, a second gate insulating layer on the second active layer, a second gate electrode on the second gate insulating layer, a second source electrode connected to the second active layer, and a second drain electrode spaced apart from the second source electrode and connected to the second active layer, and the conductive material layer is connected to the second source electrode and overlaps the second channel portion. Also, a display device comprising the thin film transistor substrate is provided.
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