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公开(公告)号：US11942040B2
公开(公告)日：2024-03-26
申请号：US17783046
申请日：2019-12-13
发明人： Makoto Yokoyama , Nobuyuki Taya , Junichi Yamada
IPC分类号： G09G3/3266
CPC分类号： G09G3/3266 , G09G2300/0842 , G09G2310/0286
摘要： In a display device having a non-rectangular display unit, occurrence of a difference in luminance between a region with a high load and a region with a low load is suppressed. A region inside the display unit is segmented into a high-load region with a high load on horizontal scanning lines (an initialization control line and a write control line) and a low-load region with a low load on horizontal scanning lines. An initialization control line and a write control line that are disposed in the high-load region are driven by a discharge driver and a scan driver, respectively. An initialization control line and a write control line that are disposed in the low-load region both are driven by, for example, the discharge driver.
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公开(公告)号：US11762247B2
公开(公告)日：2023-09-19
申请号：US16981447
申请日：2018-03-16
发明人： Junichi Yamada , Makoto Yokoyama , Naoki Ueda
IPC分类号： G02F1/1345 , H05K1/18 , H10K59/12
CPC分类号： G02F1/13452 , H05K1/189 , H10K59/12
摘要： Provided is a display device including a display panel which allows a curvature portion thereof to be narrowed near a terminal portion even when circuit blocks are arranged in the curvature portion.
For a data line in the form of a polyline consisting of a plurality of short straight line segments in a first curvature portion 12a of a display panel 10, as the distance from a terminal portion 16 increases, the slant angle of each straight line segment increases, the number of data lines d decreases, and hence the width of a data line area decreases. Accordingly, the number of unit circuit blocks 70 in a parallel circuit block 80 disposed in a circuit area can be increased by widening the circuit area in proportion to the decrease in the width of the data line area.-
公开(公告)号：US11538894B2
公开(公告)日：2022-12-27
申请号：US17042852
申请日：2018-03-30
发明人： Makoto Yokoyama , Junichi Yamada
IPC分类号： H01L27/32
摘要： A first metal layer, an inorganic insulating film, and a second metal layer are provided. A first wiring line led to a peripheral edge of a cutout portion is provided in the first metal layer. A second wiring line led to the peripheral edge of the cutout portion is provided in the second metal layer. The first lead wiring line and the second lead wiring line overlap each other through intermediation of the inorganic insulating film.
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公开(公告)号：US11417281B2
公开(公告)日：2022-08-16
申请号：US17042886
申请日：2018-03-30
发明人： Makoto Yokoyama , Junichi Yamada
IPC分类号： G09G3/3283 , G09G3/3266 , H01L27/32
摘要： One of a plurality of data signal lines or one of a plurality of control lines that is electrically coupled to a first lead wiring line, and another one of the plurality of data signal lines or another one of the plurality of control lines that is electrically coupled to a second lead wiring line are adjacent to each other. The first lead wiring line is provided in a first metal layer. The second lead wiring line is provided in a second metal layer being a layer different from the first metal layer. The first lead wiring line and the second lead wiring line are superposed on one another through intermediation of an inorganic insulating film.
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公开(公告)号：US10706803B2
公开(公告)日：2020-07-07
申请号：US15574789
申请日：2016-05-18
发明人： Shige Furuta , Takahiro Yamaguchi , Junichi Yamada , Hidekazu Yamanaka , Yasushi Sasaki , Yuhichiroh Murakami
摘要： Provided is a shift register circuit capable of preventing occurrence of malfunction caused by a threshold shift of a thin-film transistor due to an influence of external light. A unit circuit constituting each stage of the shift register circuit includes a plurality of thin-film transistors. The plurality of thin-film transistors are categorized into a first group (T2, T4, T9) whose on-off state is controlled at relatively high on-duty and a second group (T1, T3, T5, T6, T7, T8) whose on-off state is controlled at relatively low on-duty. In such a configuration, a light shielding film (LS) is provided only for the thin-film transistor included in one of the first group and the second group.
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公开(公告)号：US11436980B2
公开(公告)日：2022-09-06
申请号：US17040939
申请日：2018-03-28
发明人： Junichi Yamada , Makoto Yokoyama
IPC分类号： G09G3/3266 , H01L27/32
摘要： Provided is a display device including an irregularly shaped display panel that allows a frame area to be narrowed by utilizing the frame area in a cutout portion. Some emission circuits that respectively correspond to scan circuits arranged in a first curvature portion are arranged in a part of a second side portion that is near the first curvature portion, and remaining emission circuits are arranged in a first notch side portion. Accordingly, the emission circuits arranged in the first notch side portion have lines connected to second emission control lines in a second display area from the first notch side portion side, resulting in a fewer number of lines extending into the first curvature portion.
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公开(公告)号：US10861392B2
公开(公告)日：2020-12-08
申请号：US16494810
申请日：2017-03-22
IPC分类号： G09G3/30 , G09G3/3258 , G09G3/20 , G09G3/3275 , G09G3/3266
摘要： Provided are a display device drive method and a display device, both of which allow a pixel circuit to be discharged without leaving any electric charge in an OFF sequence for powering off the display device.During an OFF sequence period, a first node N1 is set to a first ground potential Vgnd1, which is a potential higher than an initialization potential Vini. As a result, even when a second ground potential Vgnd2 is supplied through a data line Dj to a second conductive terminal of a drive transistor T1, a gate terminal of the drive transistor T1 is not charged with a gate-to-source voltage Vgs. Therefore, an organic EL display device 1 is powered off with the gate terminal of the drive transistor T1 being charged with the first ground potential Vgnd1 leaving no electric charge in a pixel circuit 11 after the power off.
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公开(公告)号：US11985870B2
公开(公告)日：2024-05-14
申请号：US17042877
申请日：2018-03-30
发明人： Makoto Yokoyama , Junichi Yamada
CPC分类号： H10K59/131 , G09G3/32 , H10K77/10
摘要： A nick is disposed in a display region so as to partly cut the display region. A first routed wire is routed from the display region toward the nick. The first routed wire is included in a first metal layer. A first conductive film is included in a second metal layer. The first routed wire and the first conductive film overlap each other via an inorganic insulating film.
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公开(公告)号：US11943977B2
公开(公告)日：2024-03-26
申请号：US17278927
申请日：2018-09-27
发明人： Junichi Yamada , Makoto Yokoyama , Yasushi Kubota
IPC分类号： H01L27/32 , H10K59/121 , H10K59/131
CPC分类号： H10K59/131 , H10K59/121
摘要： A display device includes: a display region formed with a notch portion; and a frame region surrounding the display region, wherein the display region includes a first lead wiring line and a second lead wiring line. In a plan view, an extending direction of the first lead wiring line and an extending direction of the second lead wiring line are same. Either one lead wiring line of the first lead wiring line and the second lead wiring line includes a first region a second region.
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公开(公告)号：US11522038B2
公开(公告)日：2022-12-06
申请号：US17041918
申请日：2018-03-30
发明人： Makoto Yokoyama , Junichi Yamada
摘要： A frame region includes a first routed wire extending from one of a plurality of scan signal lines, one of a plurality of light-emission control lines, or one of a plurality of data signal lines. The first routed wire is electrically connected to drive circuits. The first routed wire is included in a first metal layer. A first conductive film is included in a second metal layer. The first routed wire and the first conductive film overlap each other via an inorganic insulating film.
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