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公开(公告)号：US11551611B2
公开(公告)日：2023-01-10
申请号：US17413617
申请日：2018-12-18
发明人： Sunhee Lee , Seryeong Kim , Eunhye Ko , Eoksu Kim , Eunhyun Kim
IPC分类号： G09G3/3233 , G09G3/3266 , G09G3/3275
摘要： A pixel circuit includes an organic light emitting element, a switching transistor configured to be turned on or off in response to a scan signal, a storage capacitor configured to store a data signal applied through a data line when the switching transistor is turned on, a driving transistor configured to allow a driving current corresponding to the data signal stored in the storage capacitor to flow into the organic light emitting element, and an emission control transistor implemented by an oxide thin film transistor, connected in series to the organic light emitting element and the driving transistor between a high power voltage and a low power voltage, and configured to be turned on or off in response to an emission control signal. The pixel circuit performs a back-biasing operation that compensates for a change in a threshold voltage of the emission control transistor by applying a back-biasing voltage to the emission control transistor.
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公开(公告)号：US20240188322A1
公开(公告)日：2024-06-06
申请号：US18462389
申请日：2023-09-06
发明人： Sangwoo Sohn , Eunhye Ko , Yeon Keon Moon , Sunhee Lee , Hyunmo Lee , Hyunjun Jeong
IPC分类号： H10K50/30 , H10K59/121 , H10K59/80 , H10K71/00 , H10K77/10
CPC分类号： H10K50/30 , H10K59/1213 , H10K59/805 , H10K71/621 , H10K77/10 , H10K2102/302
摘要： A display panel includes a light emitting element and a pixel circuit electrically connected to the light emitting element and includes a first transistor and a second transistor. The first transistor includes a first semiconductor pattern including a first source region, a first drain region, and a first channel region, a first gate electrode disposed over the first channel region, and a first conductive pattern disposed under the first channel region. The second transistor includes a second semiconductor pattern including a second source region, a second drain region, and a second channel region, a second gate electrode disposed over the second channel region, and a second conductive pattern disposed under the second channel region. A length of the first conductive pattern is longer than a length of the first gate electrode. The second conductive pattern is shorter than a length of the second gate electrode.
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公开(公告)号：US20220140042A1
公开(公告)日：2022-05-05
申请号：US17332698
申请日：2021-05-27
发明人： Eunhyun Kim , Eunhye Ko , Yeonhong Kim , Kyoungwon Lee , Sunhee Lee , Junhyung Lim
IPC分类号： H01L27/32
摘要： A display apparatus in which an area of a peripheral area may be reduced while having a simple structure, the display apparatus includes a substrate, a bottom metal layer on the substrate and including a first extension line extending from the peripheral area outside a display area into the display area, a semiconductor layer on the bottom metal layer, a gate layer on the semiconductor layer, a first metal layer on the gate layer, and a second metal layer on the first metal layer and including a first data line extending from the peripheral area into the display area and electrically coupled to the first extension line in the peripheral area.
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公开(公告)号：US11751441B2
公开(公告)日：2023-09-05
申请号：US17332698
申请日：2021-05-27
发明人： Eunhyun Kim , Eunhye Ko , Yeonhong Kim , Kyoungwon Lee , Sunhee Lee , Junhyung Lim
IPC分类号： H10K59/126 , H10K59/131 , H10K77/10 , H10K102/00
CPC分类号： H10K59/126 , H10K59/131 , H10K77/111 , H10K2102/311
摘要： A display apparatus in which an area of a peripheral area may be reduced while having a simple structure, the display apparatus includes a substrate, a bottom metal layer on the substrate and including a first extension line extending from the peripheral area outside a display area into the display area, a semiconductor layer on the bottom metal layer, a gate layer on the semiconductor layer, a first metal layer on the gate layer, and a second metal layer on the first metal layer and including a first data line extending from the peripheral area into the display area and electrically coupled to the first extension line in the peripheral area.
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