公开(公告)号：US20240121375A1

公开(公告)日：2024-04-11

申请号：US18482457

申请日：2023-10-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Ryul YUN ,  Seongcheol MUN ,  Inwook HWANG ,  Mi Jeong CHOI

IPC: H04N13/32 ,  G09B21/00 ,  H04N13/312

CPC classification number: H04N13/32 ,  G09B21/004 ,  H04N13/312

Abstract: The present disclosure relates to a stereoscopic surface display device, and more particularly, to a stereoscopic surface display device including: a light source unit including a plurality of optical elements; and a stereoscopic display unit disposed on the light source unit. The stereoscopic display unit includes: a polymer layer; and a light absorption layer buried in the polymer layer. The stereoscopic display unit includes a plurality of cell areas arranged in two-dimension, the light absorption layer is disposed in the plurality of cell areas, the plurality of optical elements vertically overlap the plurality of cell areas, respectively, and each of the plurality of cell areas has a stereoscopic shape.

公开(公告)号：US20230269362A1

公开(公告)日：2023-08-24

申请号：US18106650

申请日：2023-02-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Ryul YUN ,  Seung Koo PARK ,  Inwook HWANG ,  Seongcheol MUN ,  Mi Jeong CHOI

IPC: H04N13/393 ,  G05D5/02 ,  F03G7/00

CPC classification number: H04N13/393 ,  G05D5/02 ,  F03G7/016 ,  G09B21/003

Abstract: Provided is a stereoscopic surface display device including a stereoscopic display unit having a cell area, wherein the stereoscopic display unit includes a first flexible layer, a first optical waveguide and a first optical output unit in the first flexible layer, wherein the first optical output unit are disposed in the cell area, a first light source disposed on a side of the stereoscopic display unit, wherein the first optical waveguide connects the first light source and the first optical output unit, a first photothermal response layer on the first flexible layer, wherein the first photothermal response layer is configured to receive output light emitted from the first optical output unit and emit thermal energy, and a shape deformation layer on the first photothermal response layer, wherein the shape deformation layer is configured to generate bending deformation by receiving the thermal energy from the first photothermal response layer.

公开(公告)号：US20230138999A1

公开(公告)日：2023-05-04

申请号：US17975080

申请日：2022-10-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Ryul YUN ,  Inwook HWANG ,  Hyung Cheol SHIN ,  Seongcheol MUN ,  Mi Jeong CHOI

IPC: A61H1/02 ,  H02N10/00

Abstract: Provided is a soft actuator. The soft actuator includes a first support body, a second support body spaced apart from the first support body in a first direction, a yarn structure having one end coupled to the first support body and the other end coupled to the second support body, and a light source part spaced apart from the yarn structure in a second direction crossing the first direction. The yarn structure includes a polymer layer having a coil spring shape extending in the first direction and a light absorption layer configured to surround an outer surface of the polymer layer.

公开(公告)号：US20200032013A1

公开(公告)日：2020-01-30

申请号：US16306866

申请日：2018-04-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Koo PARK ,  Sung Ryul YUN ,  Ki Uk KYUNG ,  Mi Jeong CHOI ,  Bong Je PARK ,  Suntak PARK ,  Saekwang NAM ,  Seongcheol MUN ,  Eun Jin SHIN ,  Jeong Mook LIM

IPC: C08J5/18 ,  C08L83/10 ,  C08G77/442 ,  C08G77/20 ,  G02B26/02

Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.

公开(公告)号：US20240429838A1

公开(公告)日：2024-12-26

申请号：US18744800

申请日：2024-06-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Ryul YUN ,  Jung-Hwan YOUN ,  Seung Yeon JANG ,  Inwook HWANG ,  Seongcheol MUN ,  Mi Jeong CHOI

IPC: H02N2/18 ,  H10N30/857

Abstract: Provided is an actuator system which includes an electroactive polymer film, and a spring surrounded by the electroactive polymer film. At least a portion of the spring is disposed inside the electroactive polymer film.

公开(公告)号：US20210292495A1

公开(公告)日：2021-09-23

申请号：US17324869

申请日：2021-05-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Koo PARK ,  Sung Ryul YUN ,  Ki Uk KYUNG ,  Mi Jeong CHOI ,  Bong Je PARK ,  Suntak PARK ,  Saekwang NAM ,  Seongcheol MUN ,  Eun Jin SHIN ,  Jeong Mook LIM

IPC: C08J5/18 ,  C08L83/10 ,  C08G77/442 ,  G02B26/02 ,  C08G77/20

Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.