公开(公告)号：US20240134245A1

公开(公告)日：2024-04-25

申请号：US18396569

申请日：2023-12-26

Applicant: OSAKA UNIVERSITY

Inventor： Giichi SHIBUYA ,  Sunri LEE ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02F1/29 ,  G02B3/14

CPC classification number: G02F1/294 ,  G02B3/14

Abstract: A liquid crystal element is provided that can inhibit occurrence of voltage drop between one end and the other end of each electrode. A liquid crystal element (100) includes a liquid crystal layer LQ, a plurality of first arcuate electrodes (1), and a plurality of second arcuate electrodes (2). The first arcuate electrodes (1) are disposed concentrically about an optical axis (AX) of the liquid crystal element (100) and applies first voltage (Vi) to the liquid crystal layer (LQ). The second arcuate electrodes (2) are disposed concentrically about the optical axis (AX) and applies second voltage (V2) to the liquid crystal layer (LQ).

公开(公告)号：US20180031947A1

公开(公告)日：2018-02-01

申请号：US15545177

申请日：2016-01-20

Applicant: OSAKA UNIVERSITY

Inventor： Giichi SHIBUYA ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02F1/29 ,  H04N5/225 ,  H04N5/232

CPC classification number: G02F1/29 ,  G02B3/14 ,  G02F1/13 ,  G02F1/133345 ,  G02F2001/294 ,  G02F2201/122 ,  G03B5/00 ,  H04N5/2254 ,  H04N5/2257 ,  H04N5/23258

Abstract: A liquid crystal element includes: a first electrode to which a first voltage is applied; a second electrode to which a second voltage is applied; an insulating layer that is an electrical insulator; a highly resistive layer; a liquid crystal layer containing liquid crystal; a third electrode to which a third voltage is applied; a first boundary layer that is an electrical insulator; and a second boundary layer that faces the first boundary layer with the insulating layer therebetween. The insulating layer is located among the first electrode, the second electrode, and the highly resistive layer, and insulates the first electrode, the second electrode, and the highly resistive layer from one another. The highly resistive layer has an electric resistivity higher than each of electric resistivities of the first electrode and the second electrode, and lower than an electric resistivity of the insulating layer.

公开(公告)号：US20230176446A1

公开(公告)日：2023-06-08

申请号：US17604986

申请日：2020-04-17

Applicant: OSAKA UNIVERSITY

Inventor： Giichi SHIBUYA ,  Sunri LEE ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02F1/29 ,  G02B3/14

CPC classification number: G02F1/294 ,  G02B3/14

Abstract: A liquid crystal element is provided that can inhibit occurrence of voltage drop between one end and the other end of each electrode. A liquid crystal element (100) includes a liquid crystal layer LQ, a plurality of first arcuate electrodes (1), and a plurality of second arcuate electrodes (2). The first arcuate electrodes (1) are disposed concentrically about an optical axis (AX) of the liquid crystal element (100) and applies first voltage (V1) to the liquid crystal layer (LQ). The second arcuate electrodes (2) are disposed concentrically about the optical axis (AX) and applies second voltage (V2) to the liquid crystal layer (LQ).

公开(公告)号：US20190187339A1

公开(公告)日：2019-06-20

申请号：US16318803

申请日：2017-07-11

Applicant: OSAKA UNIVERSITY

Inventor： Giichi SHIBUYA ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02B3/08 ,  G02B3/10 ,  G02C7/04 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02B3/08 ,  G02B3/10 ,  G02C7/00 ,  G02C7/041 ,  G02F1/13 ,  G02F1/133 ,  G02F1/133345 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/137 ,  G02F1/29 ,  G02F2001/294 ,  G02F2201/122

Abstract: A liquid crystal element (100) refracts and outputs light. The liquid crystal element (100) includes a first electrode (1), a second electrode (2), an insulating layer (21) that is an electric insulator, a resistance layer (22), a liquid crystal layer (23) including liquid crystal, and a third electrode (3). The insulating layer (21) is disposed between each location of the first and second electrodes (1) and (2) and the resistance layer (22) to insulate the first and second electrodes (1) and (2) from the resistance layer (22). The resistance layer (22) has an electrical resistivity higher than that of the first electrode (1) and lower than that of the insulating layer (21). The resistance layer (22) and the liquid crystal layer (23) are disposed between the insulating layer (21) and the third electrode (3). The resistance layer (22) is disposed between the insulating layer (21) and the liquid crystal layer (23). The insulating layer (21) has a thickness (ts) smaller than a thickness (th) of the resistance layer (22).

公开(公告)号：US20240231178A9

公开(公告)日：2024-07-11

申请号：US18396569

申请日：2023-12-26

Applicant: OSAKA UNIVERSITY

Inventor： Giichi SHIBUYA ,  Sunri LEE ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02F1/29 ,  G02B3/14

CPC classification number: G02F1/294 ,  G02B3/14

Abstract: A liquid crystal element is provided that can inhibit occurrence of voltage drop between one end and the other end of each electrode. A liquid crystal element (100) includes a liquid crystal layer LQ, a plurality of first arcuate electrodes (1), and a plurality of second arcuate electrodes (2). The first arcuate electrodes (1) are disposed concentrically about an optical axis (AX) of the liquid crystal element (100) and applies first voltage (Vi) to the liquid crystal layer (LQ). The second arcuate electrodes (2) are disposed concentrically about the optical axis (AX) and applies second voltage (V2) to the liquid crystal layer (LQ).

公开(公告)号：US20220365383A1

公开(公告)日：2022-11-17

申请号：US17620349

申请日：2019-06-18

Applicant: OSAKA UNIVERSITY

Inventor： Sunri LEE ,  Giichi SHIBUYA ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02F1/1339 ,  G02F1/1337

Abstract: A liquid crystal element (100) includes a plurality of unit electrodes (10), a liquid crystal layer (LQ), and a plurality of wall members (WL). Each of the unit electrodes (10) includes a first electrode (1) and a second electrode (2). A voltage is applied to the liquid crystal layer (LQ) from each of the unit electrodes (10). The wall members (WL) are arranged in the liquid crystal layer (LQ). The liquid crystal layer (LQ) has a waveform retardation (RT). Two or more of a plurality of peaks (P1) in the retardation (RT) correspond to positions of respective wall members (WL).

公开(公告)号：US20220120942A1

公开(公告)日：2022-04-21

申请号：US17646582

申请日：2021-12-30

Applicant: OSAKA UNIVERSITY

Inventor： Giichi SHIBUYA ,  Hiroyuki YOSHIDA ,  Masanori OZAKI

IPC: G02B3/08 ,  G02F1/1343 ,  G02B3/10 ,  G02F1/13 ,  G02C7/00 ,  G02F1/1333 ,  G02F1/1347 ,  G02F1/29 ,  G02F1/133 ,  G02C7/04 ,  G02F1/137

Abstract: A liquid crystal element (100) refracts and outputs light. The liquid crystal element (100) includes a first electrode (1), a second electrode (2), an insulating layer (21) that is an electric insulator, a resistance layer (22), a liquid crystal layer (23) including liquid crystal, and a third electrode (3). The insulating layer (21) is disposed between each location of the first and second electrodes (1) and (2) and the resistance layer (22) to insulate the first and second electrodes (1) and (2) from the resistance layer (22). The resistance layer (22) has an electrical resistivity higher than that of the first electrode (1) and lower than that of the insulating layer (21). The resistance layer (22) and the liquid crystal layer (23) are disposed between the insulating layer (21) and the third electrode (3). The resistance layer (22) is disposed between the insulating layer (21) and the liquid crystal layer (23). The insulating layer (21) has a thickness (ts) smaller than a thickness (th) of the resistance layer (22).