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公开(公告)号：US10747071B2
公开(公告)日：2020-08-18
申请号：US16291703
申请日：2019-03-04
Inventor： Takahiro Ochiai , Tohru Sasaki , Hirotaka Imayama , Masateru Morimoto
IPC: G02F1/1343 , G02F1/1333 , G02F1/1362 , G02F1/136 , G02F1/1368
Abstract: The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.
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公开(公告)号：US10592030B2
公开(公告)日：2020-03-17
申请号：US15995274
申请日：2018-06-01
Applicant: Japan Display Inc.
Inventor： Tohru Sasaki , Hajime Akimoto
Abstract: Provided is a display device including a plurality of pixels and a touch sensor overlapping with the plurality of pixels, the touch sensor. The touch sensor possesses: a first wiring arranged in a first direction and including a plurality of first electrodes; and a second wiring arranged in a second direction intersecting the first direction and including a plurality of second electrodes. Each of the first electrodes and each of the second electrodes vary in width continuously or stepwise in the first direction and the second direction, respectively, and satisfy a certain relationship with respect to an area and a total length of sides thereof.
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公开(公告)号：US10423034B2
公开(公告)日：2019-09-24
申请号：US16019937
申请日：2018-06-27
Inventor： Takahiro Ochiai , Tohru Sasaki , Tetsuya Nagata
IPC: G02F1/1339 , G02F1/1362 , G02F1/1368 , G02F1/1343 , G02F1/1341 , G02F1/136
Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.
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公开(公告)号：US09954198B2
公开(公告)日：2018-04-24
申请号：US15136430
申请日：2016-04-22
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Tetsuya Nagata , Tohru Sasaki
IPC: H01L51/52 , H01L27/32 , H01L27/15 , G02F1/1339
CPC classification number: H01L51/5246 , G02F1/1339 , H01L27/15 , H01L27/322 , H01L27/3244 , H01L27/3276 , H01L51/52 , H01L51/525
Abstract: A display device includes a circuit substrate that is formed of a plurality of layers including a light control element; a counter substrate that faces a surface of the circuit substrate on which the light control element is disposed, with a gap therebetween; a seal that is disposed between the circuit substrate and the counter substrate to surround the light control element; and a filler with which a sealed space surrounded by at least the circuit substrate, the counter substrate, and a sealing surface of the seal is filled. The sealing surface includes internal angle corner surfaces formed by an inner surface of the seal, and a convex surface formed adjacent to the corner surfaces from at least one of the circuit substrate, the counter substrate, and the seal.
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公开(公告)号：US09881979B2
公开(公告)日：2018-01-30
申请号：US14638452
申请日：2015-03-04
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Tohru Sasaki
CPC classification number: H01L27/3244 , H01L25/18 , H01L51/003 , H01L51/0097 , H01L51/5253 , H01L51/56 , H01L2227/323 , H01L2227/326 , H01L2251/301 , H01L2251/5338 , H01L2251/566 , Y02E10/549 , Y02P70/521
Abstract: How a flat panel display is bent by external forces is controlled. A display panel 40 has display elements, formed corresponding to the arrangement of pixels, on a first principal surface of a flexible display panel substrate 46. The display panel substrate 46 has a linear groove 48 on at least part of a second principal surface of the display panel substrate 46. A resin is stacked on a support substrate having a linear ridge on at least part of the surface of the support substrate. The surface shape of the support substrate is transferred to the resin so that the groove 48 is molded. Thus, the display panel substrate 46 made of the resin is formed on the support substrate. After the display elements are formed on the display panel substrate 46, the support substrate is removed from the display panel substrate 46.
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Patent Agency Ranking
公开(公告)号：US11450828B2
公开(公告)日：2022-09-20
申请号：US17124519
申请日：2020-12-17
Applicant: Japan Display Inc.
Inventor： Tohru Sasaki
Abstract: A display device comprising: pixel electrodes; an electroluminescent layer composed of layers laminated with each other, the multiple layers including a light-emitting layer and a charge generation layer; and a counter electrode. The multiple layers include a first layer composed of sections separated from each other and overlapping with the pixel electrodes, a second layer in contact with the first layer and continuous over the pixel electrodes, and a third layer interposed between the first layer and the second layer, the third layer being in contact with the first layer and the second layer over an adjacent pair of the sections. At least the charge generation layer is the first layer. The second layer is adapted to inject or transport carriers, either electrons or holes. The third layer is adapted to block the carriers injected or transported by the second layer.
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公开(公告)号：US20220165976A1
公开(公告)日：2022-05-26
申请号：US17665646
申请日：2022-02-07
Applicant: Japan Display Inc.
Inventor： Tohru Sasaki
IPC: H01L51/50
Abstract: To provide a display device capable of more reliably preventing a leakage current between adjacent pixels, the display device includes a plurality of first electrodes, an organic insulating layer disposed in a non-light emitting area and covering an end portion of the first electrode, a first light emitting layer disposed on one first electrode and a second light emitting layer, a second electrode, a carrier transport layer, a carrier injection layer, and a first carrier blocking layer. The carrier injection layer includes an overlapping area that overlaps with an end portion of the organic insulating layer. The carrier transport layer overlaps with the carrier injection layer in the overlapping area. The first carrier blocking layer is disposed in the non-light emitting area, and an end portion of the first carrier blocking layer is disposed between the carrier transport layer and the carrier injection layer in the overlapping area.
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公开(公告)号：US20210193944A1
公开(公告)日：2021-06-24
申请号：US17124519
申请日：2020-12-17
Applicant: Japan Display Inc.
Inventor： Tohru Sasaki
Abstract: A display device comprising: pixel electrodes; an electroluminescent layer composed of layers laminated with each other, the multiple layers including a light-emitting layer and a charge generation layer; and a counter electrode. The multiple layers include a first layer composed of sections separated from each other and overlapping with the pixel electrodes, a second layer in contact with the first layer and continuous over the pixel electrodes, and a third layer interposed between the first layer and the second layer, the third layer being in contact with the first layer and the second layer over an adjacent pair of the sections. At least the charge generation layer is the first layer. The second layer is adapted to inject or transport carriers, either electrons or holes. The third layer is adapted to block the carriers injected or transported by the second layer.
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29.发明授权公开(公告)号：US10916594B2
公开(公告)日：2021-02-09
申请号：US16729573
申请日：2019-12-30
Applicant: Japan Display Inc.
Inventor： Tohru Sasaki
Abstract: A plurality of light emitting layers are divided into a plurality of groups in response to light emitting colors. Each of the plurality of groups includes a group corresponding to the plurality of light emitting layers. Transmitted light colors of a plurality of filter layers are respectively the same type of colors as the light emitting colors of the plurality of light emitting layers. Each of the plurality of light emitting layers includes a central area and a peripheral area having mutually different light emitting characteristics within a range corresponding to a plurality of contact areas. Each of the plurality of filter layers includes a filter opening at the center, and is provided at least obliquely upward in an outward direction of the peripheral area.
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公开(公告)号：US10782807B2
公开(公告)日：2020-09-22
申请号：US15860812
申请日：2018-01-03
Applicant: Japan Display Inc.
Inventor： Tohru Sasaki
IPC: G06F3/041 , H01L41/193 , H01L41/09 , H01L27/32 , G02F1/1333 , H01L51/52 , G02F1/1343
Abstract: The purpose of the present invention is to realize a flexible display device with a touch sensor that flexibility is maintained in a normal operation as a display; however, rigidity is added to the display device when the touch sensor is used. The representative structure of the invention is, a display device comprising: a touch sensor and a display panel, wherein a laminated body of a first actuator and a second actuator is adhered to the rear surface of the display panel, the first actuator itself can bend when voltage is applied, the second actuator itself can bend when voltage is applied.
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