公开(公告)号：US20240005885A1

公开(公告)日：2024-01-04

申请号：US18141908

申请日：2023-05-01

申请人： Sharp Display Technology Corporation

发明人： Masaki UEHATA ,  Yasuki MORI ,  Kohji SAITOH ,  Takayuki MIZUNAGA ,  Kazuya KONDOH ,  Takashi NOJIMA ,  Kazuhisa YOSHIMOTO ,  Kosuke KAWAMOTO ,  Hiroyuki KITO ,  Kazuki NAKAMICHI

IPC分类号： G09G3/36

CPC分类号： G09G3/36 ,  G09G2310/0202 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2320/0209 ,  G09G2320/0247

摘要： A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.

公开(公告)号：US11852919B1

公开(公告)日：2023-12-26

申请号：US18219132

申请日：2023-07-07

申请人： Sharp Display Technology Corporation

发明人： Motoaki Okitsu

IPC分类号： G02F1/13357 ,  G02F1/1333

CPC分类号： G02F1/133603 ,  G02F1/133382 ,  G02F1/133608

摘要： A backlight unit includes an LED substrate including a first main surface and a second main surface on a side opposite to the first main surface, a plurality of LED elements arranged on the first main surface, one or more drive IC elements arranged on the second main surface, a chassis disposed on the second main surface side of the LED substrate, and one or more IC element covers each being in direct or indirect contact with a corresponding drive IC element of the one or more drive IC elements. The chassis includes one or more protrusions respectively corresponding to the one or more drive IC elements. Each of the one or more protrusions includes an opening that exposes the corresponding drive IC element when viewed from a normal direction of the second main surface. The IC element cover fits in the protrusion.

公开(公告)号：US20230384637A1

公开(公告)日：2023-11-30

申请号：US18202983

申请日：2023-05-29

申请人： Sharp Display Technology Corporation

发明人： Daisuke TERAGAWA

IPC分类号： G02F1/13357

CPC分类号： G02F1/133608 ,  G02F1/133603 ,  G02F1/133605

摘要： A reflective sheet is attached to a front face of a light source substrate so as to cover a head portion of a fixing member, a bridge across the head portion of the fixing member is formed by providing a slit in the reflective sheet, and the bridge is disposed so as to pass through a central portion of a region surrounded by four light sources around the head portion of the fixing member.

公开(公告)号：US11830454B2

公开(公告)日：2023-11-28

申请号：US18101270

申请日：2023-01-25

申请人： Sharp Display Technology Corporation

发明人： Kengo Hara ,  Tohru Daitoh ,  Yoshihito Hara ,  Jun Nishimura ,  Yohei Takeuchi

IPC分类号： G09G3/36 ,  H01L27/12

CPC分类号： G09G3/3677 ,  H01L27/124 ,  H01L27/1225 ,  G09G2310/0286 ,  G09G2330/021

摘要： An active matrix substrate includes a gate driver including a shift register including a plurality of unit circuits connected in multiple stages. Each of the plurality of unit circuits includes an output node, a first node, a first TFT including a first gate terminal supplied with the set signal, a first source terminal connected to the first node, and a first drain terminal supplied with a first power supply potential higher than a low-level potential of the set signal, and a second TFT including a second gate terminal connected to the first node, a second source terminal connected to the output node, and a second drain terminal supplied with the clock signal. The first TFT includes a semiconductor layer, and a first and a second gate electrodes disposed on a side of the semiconductor layer opposite to the substrate and connected to the first gate terminal. The semiconductor layer includes a source contact region electrically connected to the first source terminal, a drain contact region electrically connected to the first drain terminal, and a first and a second channel regions separated from each other in a channel length direction between the contact regions when viewed from a normal direction of the substrate. The first gate electrode overlaps the first channel region via an upper gate insulating layer, and the second gate electrode overlaps the second channel region via the upper gate insulating layer.

公开(公告)号：US11825672B2

公开(公告)日：2023-11-21

申请号：US17405301

申请日：2021-08-18

申请人： Sharp Display Technology Corporation

发明人： Andrea Zampetti ,  Valerie Berryman-Bousquet

IPC分类号： H10K50/115 ,  H10K50/805 ,  H10K71/00 ,  H10K50/15 ,  H10K50/16 ,  H10K102/00

CPC分类号： H10K50/115 ,  H10K50/805 ,  H10K71/00 ,  H10K50/15 ,  H10K50/16 ,  H10K2102/00

摘要： A quantum dot light-emitting apparatus includes a substrate, with a first electrode layer located on the substrate. An emissive layer having a first set of quantum dots is electrically coupled with the first electrode layer, and a second electrode layer is also electrically coupled with the emissive layer. The second electrode layer is located opposite the first electrode layer, relative to the emissive layer. A first charge transport layer is placed between the emissive layer and the first electrode layer, and a second charge transport layer is placed between the emissive layer and the second electrode layer. At least one of the first charge transport layer and the second charge transport layer includes a second set of quantum dots.

公开(公告)号：US11817459B2

公开(公告)日：2023-11-14

申请号：US17852418

申请日：2022-06-29

申请人： Sharp Display Technology Corporation

发明人： Katsunori Misaki

IPC分类号： G02F1/1368 ,  H01L27/12 ,  H01L27/146 ,  G02F1/1343

CPC分类号： H01L27/1225 ,  G02F1/1368 ,  H01L27/127 ,  H01L27/1462 ,  H01L27/14616 ,  H01L27/14685 ,  H01L27/14692 ,  G02F1/134363 ,  H01L27/14658

摘要： Each thin film transistor of an active matrix substrate includes an oxide semiconductor layer, a gate electrode disposed closer to the substrate side of the oxide semiconductor layer, a gate insulating layer, a source electrode, and a drain electrode, wherein the oxide semiconductor layer includes a layered structure including a first layer and a second layer disposed on a part of the first layer and extending across the first layer in a channel width direction when viewed in a normal direction of the substrate, the first layer includes an overlapping portion overlapping with the second layer, and a first portion and a second portion each located on a corresponding one of both sides of the second layer, when viewed in a normal direction of the substrate, the second layer covers an upper surface and a side surface of the overlapping portion of the first layer, the source electrode is electrically connected to at least a part of an upper surface of the first portion, and the drain electrode is electrically connected to at least a part of an upper surface of the second portion.

公开(公告)号：US20230341729A1

公开(公告)日：2023-10-26

申请号：US18137402

申请日：2023-04-20

申请人： Sharp Display Technology Corporation

发明人： Takahiro NEMOTO ,  Shogo NISHIWAKI

IPC分类号： G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  G06F1/16

CPC分类号： G02F1/134309 ,  G02F1/136286 ,  G02F1/13439 ,  H01L27/124 ,  G06F1/163

摘要： According to an aspect of the disclosure, a display device includes a first substrate, a second substrate, a first wire, a first electrode adjacent to the first wire and closer to the second substrate than the first wire, a second electrode closer to the second substrate than the first electrode and disposed to overlap the first wire and the first electrode, a first overlap section, disposed to overlap at least the first wire, that blocks light, and a third electrode closer to the second substrate than the first wire and further away from the second substate than the first electrode. A plurality of slits is formed in the second electrode, the plurality of slits being placed at spacings from one another and cutting across the first wire and the first electrode. The third electrode is disposed to overlap at least both the first wire and the slits.

公开(公告)号：US20230333427A1

公开(公告)日：2023-10-19

申请号：US18134517

申请日：2023-04-13

申请人： Sharp Display Technology Corporation

发明人： Akira HIRAI ,  Yuichi KAWAHIRA ,  Akira SAKAI

IPC分类号： G02F1/1335 ,  G02F1/1368

CPC分类号： G02F1/133531 ,  G02F1/1368

摘要： A liquid crystal display device includes a first polarizing plate, a first substrate including a thin-film transistor, a liquid crystal layer containing liquid crystal molecules, a second substrate, a second polarizing plate, and a backlight. The first polarizing plate, the first substrate, the liquid crystal layer, the second substrate, the second polarizing plate, and the backlight are arranged in this order. The first substrate has a display area and a frame area placed on an outer edge of the display region. The liquid crystal display device has an ink layer between the frame area of the first substrate and the first polarizing plate. The liquid crystal display device has an internal reflectance ratio y of 0.2 to 0.3. The internal reflectance ratio y is expressed by Formula (1-1).

公开(公告)号：US11789325B2

公开(公告)日：2023-10-17

申请号：US18115664

申请日：2023-02-28

申请人： Sharp Display Technology Corporation

发明人： Kikuko Azuma

IPC分类号： G02F1/1339 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1335

CPC分类号： G02F1/136204 ,  G02F1/1339 ,  G02F1/134309 ,  G02F1/133514 ,  G02F1/136222 ,  G02F2202/16

摘要： A liquid crystal display apparatus includes an active matrix substrate, a counter substrate opposing the active matrix substrate, a liquid crystal layer provided between the active matrix substrate and the counter substrate, and a sealing portion that surrounds the liquid crystal layer. The active matrix substrate includes a first substrate and a first transparent conductive layer. The counter substrate includes a second substrate and a second transparent conductive layer. The active matrix substrate further includes a capacitance element that is disposed at an outer side of the sealing portion or disposed at least partially overlapping with the sealing portion. One of the active matrix substrate and the counter substrate further includes a projection structure. A section of the second transparent conductive layer present at an outer side of the sealing portion is in contact with the first transparent conductive layer on a top face of the projection structure.

公开(公告)号：US11789312B2

公开(公告)日：2023-10-17

申请号：US17987803

申请日：2022-11-15

申请人： Sharp Display Technology Corporation

发明人： Hirotoshi Yasunaga ,  Hisashi Watanabe ,  Takeshi Masuda

IPC分类号： G02F1/13357 ,  F21V8/00

CPC分类号： G02F1/133606 ,  G02B6/0076 ,  G02F1/133605 ,  G02F1/133603

摘要： According to an aspect of the disclosure, a lighting device includes: a plurality of light sources; and a plurality of optical sheets disposed to be stacked at a position away from the plurality of light sources. The plurality of optical sheets include a first optical sheet and a second optical sheet. Each of the first optical sheet and the second optical sheet has a unit region that modulates light emitted from a light source for each of the plurality of light sources. The unit region includes a modulation region including a light source region facing the light source, and having a relatively high modulation action of the light as compared with other regions.