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公开(公告)号：US11455955B2
公开(公告)日：2022-09-27
申请号：US17264703
申请日：2019-03-29
发明人： Myounggeun Cha , Sanggun Choi , Jiyeong Shin , Yongsu Lee
IPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3225
摘要： A display device may include a substrate, an organic light emitting element on the substrate, a pixel circuit between the substrate and the organic light emitting element, electrically connected to the organic light emitting element, and including a first transistor and a second transistor, a first metal layer between the substrate and the pixel circuit, overlapping the first transistor, and configured to receive a first voltage, and a second metal layer between the substrate and the pixel circuit, overlapping the second transistor, and configured to receive a second voltage different from the first voltage.
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2.发明授权公开(公告)号：US11183650B2
公开(公告)日：2021-11-23
申请号：US16202595
申请日：2018-11-28
发明人： Myounggeun Cha , Sanggun Choi , Meejae Kang , Sanggab Kim , Joon woo Bae , Thanh Tien Nguyen , Kyoungwon Lee , Yongsu Lee
摘要： A display substrate includes a first conductive layer on a base substrate, a first insulation layer on the first conductive layer, a second conductive layer on the first insulation layer, a second insulation layer on the second conductive layer, and a third conductive layer on the second insulation layer. The third conductive layer is connected to the first conductive layer and the second conductive layer through a contact hole passing through the first insulation layer, the second conductive layer, and the second insulation layer. A sidewall of the contact hole has a stepped shape.
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公开(公告)号：US11024696B2
公开(公告)日：2021-06-01
申请号：US16510614
申请日：2019-07-12
发明人： Myounggeun Cha , Yongsu Lee , Sanggun Choi , Jiyeong Shin
摘要： A display apparatus has a display area and a non-display area around the display area, the display apparatus includes, in the non-display area, a first power line, a driving circuit on a layer over the first power line, and a second power line electrically connected to the first power line and on a same layer on which one electrode of the driving circuit is arranged.
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公开(公告)号：US09634041B2
公开(公告)日：2017-04-25
申请号：US14461618
申请日：2014-08-18
发明人： Seung-Yeon Chae , Sanggun Choi , Hansu Kim , Taewoon Cha
IPC分类号： G02F1/1339 , G02F1/1333 , G02F1/1335 , G02F1/1368 , H01L27/02 , H01L27/12 , G02F1/1362
CPC分类号： H01L27/1259 , G02F1/133377 , G02F1/133512 , G02F1/136209 , G02F2001/136222
摘要： A display apparatus includes a number of pixels. Each pixel includes a substrate including a pixel area and a non-pixel area disposed between adjacent pixel areas, a first electrode disposed on the substrate in the pixel area, and a second electrode extending in a first direction and being spaced apart upward from the substrate by a predetermined distance in the pixel area defining a tunnel-shaped cavity, an image display layer disposed in the tunnel-shaped cavity and driven by an electric field formed between the first electrode and the second electrode, a roof layer disposed on the second electrode, and a sealing layer extending in the first direction, having a black color, and being disposed in the non-pixel area between adjacent pixel areas in a second direction crossing the first direction to seal the tunnel-shaped cavity.
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公开(公告)号：US11864411B2
公开(公告)日：2024-01-02
申请号：US17092568
申请日：2020-11-09
发明人： Yungbin Chung , Sanggun Choi , Yeoungkeol Woo , Myounggeun Cha , Eunjin Kwak
IPC分类号： H10K50/844 , H01L29/786 , H10K71/00
CPC分类号： H10K50/844 , H01L29/786 , H10K71/00
摘要： A display apparatus includes a first substrate, a main pixel circuit located on the first substrate and including a first semiconductor layer, an auxiliary pixel circuit located on the first substrate and including a second semiconductor layer, a buffer layer located between the first substrate and the first semiconductor layer and between the first substrate and the second semiconductor layer, and a barrier layer located between the first substrate and the buffer layer, including one material from among silicon nitride (SiNx), aluminum oxide (Al2O3), and zirconium oxide (Zr2O3), and having a density ranging from about 2 g/cm3 to about 6 g/cm3.
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公开(公告)号：US20230090817A1
公开(公告)日：2023-03-23
申请号：US17743424
申请日：2022-05-12
发明人： Myounggeun Cha , Joohee Jeon , Sanggun Choi
IPC分类号： H01L27/32
摘要： A display apparatus for displaying a high-resolution image and having a low occurrence rate of defects caused by a voltage drop. The display apparatus includes a substrate, a first conductive layer arranged on the substrate and including an auxiliary data line extending in a first direction, a first semiconductor layer arranged on the first conductive layer, a first gate layer arranged on the first semiconductor layer, a first connection electrode layer arranged on the first gate layer and including a first connection electrode electrically connected to the first semiconductor layer and the auxiliary data line, and a second connection electrode layer arranged on the first connection electrode layer and including a data line electrically connected to the first connection electrode.
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公开(公告)号：US11257887B2
公开(公告)日：2022-02-22
申请号：US16737653
申请日：2020-01-08
发明人： Thanh Tien Nguyen , Meejae Kang , Yongsu Lee , Sanggun Choi
IPC分类号： H01L27/14 , H01L27/32 , H01L27/12 , H01L29/786
摘要： A thin film transistor substrate includes: a substrate, a first electrode disposed on the substrate, a bank disposed on the substrate and having an inclined surface inclined at an angle with respect to the substrate, a second electrode disposed on the bank, an active pattern electrically connected to the first electrode and the second electrode, disposed on the inclined surface, and including a first conductive region and a second conductive region in which impurities are doped, and a channel region between the first conductive region and the second conductive region, and a gate electrode overlapping at least a portion of the channel region of the active pattern. The inclined surface extends in a first direction in a plan view. The first conductive region, the channel region, and the second conductive region are sequentially disposed on the inclined surface along a second direction that crosses the first direction.
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公开(公告)号：US11864423B2
公开(公告)日：2024-01-02
申请号：US17571895
申请日：2022-01-10
发明人： Thanh Tien Nguyen , Meejae Kang , Yongsu Lee , Sanggun Choi
IPC分类号： H01L27/14 , H10K59/121 , H01L27/12 , H01L29/786
CPC分类号： H10K59/1213 , H01L27/1262 , H01L29/78603 , H01L29/78642 , H01L27/1274
摘要： A thin film transistor substrate includes: a substrate, a first electrode disposed on the substrate, a bank disposed on the substrate and having an inclined surface inclined at an angle with respect to the substrate, a second electrode disposed on the bank, an active pattern electrically connected to the first electrode and the second electrode, disposed on the inclined surface, and including a first conductive region and a second conductive region in which impurities are doped, and a channel region between the first conductive region and the second conductive region, and a gate electrode overlapping at least a portion of the channel region of the active pattern. The inclined surface extends in a first direction in a plan view. The first conductive region, the channel region, and the second conductive region are sequentially disposed on the inclined surface along a second direction that crosses the first direction.
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公开(公告)号：US11423839B2
公开(公告)日：2022-08-23
申请号：US17264703
申请日：2019-03-29
发明人： Myounggeun Cha , Sanggun Choi , Jiyeong Shin , Yongsu Lee
IPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3225
摘要： A display device may include a substrate, an organic light emitting element on the substrate, a pixel circuit between the substrate and the organic light emitting element, electrically connected to the organic light emitting element, and including a first transistor and a second transistor, a first metal layer between the substrate and the pixel circuit, overlapping the first transistor, and configured to receive a first voltage, and a second metal layer between the substrate and the pixel circuit, overlapping the second transistor, and configured to receive a second voltage different from the first voltage.
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10.发明授权公开(公告)号：US10755639B2
公开(公告)日：2020-08-25
申请号：US16381491
申请日：2019-04-11
发明人： Myounggeun Cha , Sanggun Choi , Jiyeong Shin , Yong Su Lee
IPC分类号： G09G3/3233
摘要： A pixel unit of a display device including: an OLED; a first transistor including a first electrode connected to a first node, a second electrode connected to a second node, and a third electrode connected to a third node; a capacitor including a first electrode receiving a power voltage and a second electrode connected to the first node; a second transistor including a first electrode receiving a scan signal, a second electrode receiving a data voltage and a third electrode connected to the second node; a third transistor including a first electrode receiving the scan signal, a second electrode connected to the first node and a third electrode connected to the third node, wherein at least one of the first and third transistors includes a fourth electrode, the fourth electrode receives a compensation voltage when an operation temperature is above a preset temperature and is floated when the operation temperature is equal to or more than the preset temperature.
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