公开(公告)号：US11719972B2

公开(公告)日：2023-08-08

申请号：US17833924

申请日：2022-06-07

Applicant: Sharp Kabushiki Kaisha

Inventor： Koji Murata ,  Kazutaka Hanaoka ,  Kimiaki Nakamura ,  Atsuko Kanashima ,  Mariko Honda ,  Shinji Shimada

IPC: G02F1/1334 ,  G02F1/13357

CPC classification number: G02F1/1334 ,  G02F1/133603 ,  G02F1/133615

Abstract: The display device includes a liquid crystal panel including a polymer dispersed liquid crystal (PDLC) layer and a light source, the PDLC layer containing a polymer network and liquid crystal components dispersed in the polymer network, the light source being apart from the liquid crystal panel with an air layer, and configured to emit light toward the liquid crystal panel from an oblique direction, the end portion and the central portion of the PDLC layer each having, in the scattering state, an angle dependence which changes a transmittance of light to be emitted from a front surface based on an angle at which light is incident on a back surface of the PDLC layer, with the angle dependence of the end portion being different from the angle dependence of the central portion, the light source irradiating the end portion and the central portion with light at different angles.

公开(公告)号：US10923678B2

公开(公告)日：2021-02-16

申请号：US16710870

申请日：2019-12-11

Applicant: Sakai Display Products Corporation ,  Sharp Kabushiki Kaisha

Inventor： Yozo Narutaki ,  Katsuhiko Kishimoto ,  Shinji Shimada ,  Masahiro Mitani ,  Kohzoh Nakamura ,  Kiyoshi Minoura ,  Hiroshi Tsuchiya ,  Yuhki Kobayashi ,  Shinichi Kawato

IPC: H01L51/52 ,  G02F1/1335 ,  H01L27/32

Abstract: A reflective liquid crystal display device (30) including a reflection electrode (31), a liquid crystal layer (32), and a counter electrode (33) is formed above an insulating layer (25) in a first region (R) of a TFT substrate (20). An organic EL display device (40) including a first electrode (41), an organic layer (43), and a second electrode (44) is formed on the insulating layer (25) of the TFT substrate (20) in a second region (T). A coating layer (45) is formed at least on a surface of the organic EL display device (40) so as to wrap the second electrode (44) and the organic layer (43) of the organic EL display device (40). A part of the coating layer (45) is in contact with the insulating layer (25). As a result, a complex display apparatus capable of preventing the organic layer from deteriorating and excellent in reliability can be obtained.

公开(公告)号：US11211579B2

公开(公告)日：2021-12-28

申请号：US16648172

申请日：2017-09-27

Applicant: SHARP KABUSHIKI KAISHA ,  SAKAI DISPLAY PRODUCTS CORPORATION

Inventor： Yuhki Kobayashi ,  Shinichi Kawato ,  Kiyoshi Minoura ,  Shinji Shimada ,  Hiroshi Tsuchiya ,  Masahiro Mitani ,  Kohzoh Nakamura ,  Katsuhiko Kishimoto ,  Yozo Narutaki

IPC: H01L51/52 ,  H01L51/56 ,  G02F1/1339 ,  G02F1/1335 ,  H05B33/02 ,  H01L27/32 ,  G02F1/1368

Abstract: In the present embodiment, a sealing agent (50) sealing two substates contains a low melting-point glass material and is adhered to each of a first substrate (10) and a second substrate (20), a barrier rib (60), which is formed in such a manner as to surround the outer periphery of an electronic element (30), is disposed between the sealing agent (50) and the electronic element (30), and between the first substrate (10) and the second substrate (20), and the sealing agent (50) is spaced apart from the barrier rib (60). As a result, a deterioration of the electronic element, caused by the heat produced when sealing, may be prevented while the electronic element formed between the two substrates is protected from moisture and oxygen.

公开(公告)号：US11143927B2

公开(公告)日：2021-10-12

申请号：US16972859

申请日：2018-06-11

Applicant: SAKAI DISPLAY PRODUCTS CORPORATION ,  SHARP KABUSHIKI KAISHA

Inventor： Katsuhiko Kishimoto ,  Yozo Narutaki ,  Shinji Shimada ,  Kiyoshi Minoura

IPC: G02F1/1368 ,  H01L51/52 ,  H01L27/32

Abstract: The present invention has: a reflective liquid crystal display element (30) that is formed in a first region (R) on a TFT substrate (20) and having at least the upper surface thereof comprising an inorganic insulating film (25b), and that has a reflective electrode (31), a liquid crystal layer (32), and a counter electrode (33); and a light-emitting element (40) that is formed in a second region (T) above the insulating layer of the TFT substrate, and that has a first electrode (41), a light-emitting layer (43), and a second electrode (44). In addition, the light-emitting element has an encapsulating layer (45) formed of an inorganic insulating layer that covers the entirety of each light-emitting region, and an end portion of the encapsulating layer is bonded to the inorganic insulating film of the insulating layer.

公开(公告)号：US10955709B2

公开(公告)日：2021-03-23

申请号：US16649693

申请日：2017-09-29

Applicant: Sharp Kabushiki Kaisha ,  Sakai Display Products Corporation

Inventor： Hiroshi Tsuchiya ,  Kiyoshi Minoura ,  Shinji Shimada ,  Yuhki Kobayashi ,  Yozo Narutaki

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1339

Abstract: A display device includes a first substrate including a light-emitting element that is an upward light emission type and a transistor in a lower layer than the light-emitting element, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a sealing film formed in an island shape and covering the light-emitting element and a pixel electrode that is transparent. The pixel electrode includes a first portion not overlapping the sealing film and a second portion overlapping the sealing film.

公开(公告)号：US11454838B2

公开(公告)日：2022-09-27

申请号：US17555163

申请日：2021-12-17

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Koji Murata ,  Kazutaka Hanaoka ,  Shinji Shimada ,  Kiyoshi Minoura

IPC: G02F1/13 ,  G02F1/1343 ,  G02F1/13357 ,  G02F1/1335 ,  G02F1/1337

Abstract: Provided is a liquid crystal display device including: a liquid crystal panel; and a control circuit, the liquid crystal panel sequentially including an active matrix substrate, a first alignment film, a liquid crystal layer, a second alignment film, and a counter substrate, the active matrix substrate sequentially including a first substrate, a first electrode, a first insulating layer, and a second electrode including a linear electrode portion, the counter substrate including a second substrate and a third electrode, the third electrode extending in a longitudinal direction of the sub-pixel at a right or left end of the sub-pixel, a ratio of a width of the third electrode to a width of the first electrode in a widthwise direction being 0.14 or greater and 0.25 or smaller, the control circuit being configured to switch between application of an alternating voltage and application of a constant voltage to the third electrode.

公开(公告)号：US11437600B2

公开(公告)日：2022-09-06

申请号：US17529214

申请日：2021-11-17

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yuhki Kobayashi ,  Shinichi Kawato ,  Kiyoshi Minoura ,  Shinji Shimada ,  Hiroshi Tsuchiya ,  Masahiro Mitani ,  Kohzoh Nakamura ,  Katsuhiko Kishimoto ,  Yozo Narutaki

IPC: H01L51/52 ,  G09F9/00 ,  G02F1/1339 ,  G02F1/1368 ,  H01L51/56

Abstract: In the present embodiment, a sealing agent (50) sealing two substates contains a low melting-point glass material and is adhered to each of a first substrate (10) and a second substrate (20), a barrier rib (60), which is formed in such a manner as to surround the outer periphery of an electronic element (30), is disposed between the sealing agent (50) and the electronic element (30), and between the first substrate (10) and the second substrate (20), and the sealing agent (50) is spaced apart from the barrier rib (60). As a result, a deterioration of the electronic element, caused by the heat produced when sealing, may be prevented while the electronic element formed between the two substrates is protected from moisture and oxygen.

公开(公告)号：US10908469B2

公开(公告)日：2021-02-02

申请号：US16649154

申请日：2017-09-29

Applicant: Sharp Kabushiki Kaisha ,  Sakai Display Products Corporation

Inventor： Kiyoshi Minoura ,  Hiroshi Tsuchiya ,  Shinji Shimada ,  Yuhki Kobayashi ,  Yozo Narutaki

IPC: G02F1/1335 ,  G02F1/1368 ,  G02F1/1339 ,  G02F1/1362

Abstract: A display device includes a first substrate including a light-emitting element that is an upward light emission type and a transistor in a lower layer than the light-emitting element, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a sealing film formed in an island shape and covering the light-emitting element, a pixel electrode including a first portion not overlapping the sealing film, and a light reflective film overlapping the first portion and including a recessed and protruded surface.

公开(公告)号：US10558083B2

公开(公告)日：2020-02-11

申请号：US16138820

申请日：2018-09-21

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yasuhiro Haseba ,  Shinji Shimada

IPC: G02F1/133 ,  G02F1/1335 ,  F21V8/00 ,  G02F1/1343 ,  G02F1/139

Abstract: A liquid crystal display module is switchable between a blocking state and a displaying state on the basis of a change, caused by applying a voltage to the liquid crystal layer, in the orientation of liquid crystal molecules contained in the liquid crystal layer, the blocking state being a state in which transmitting light is concentrated to a blocking region on an initial optical axis, the displaying state being a state in which transmitting light is concentrated to a light-emitting region on a voltage-induced optical axis different from the initial optical axis.