Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Dong-Han Song"'
P.103: High Transmittance LC Mode Based on Fringe Field Switching of Vertically-Aligned Negative LCs
Publikováno v:
SID Symposium Digest of Technical Papers. 44:1376-1379
In this work we propose a liquid crystal mode in which vertically-aligned negative nematic liquid crystals are switched on by applying a fringe electric field. In the proposed mode, vertically-aligned negative liquid crystals can be switched on by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c619a38797727d2cd2b43742b60e7027
https://doi.org/10.1002/j.2168-0159.2013.tb06497.x
https://doi.org/10.1002/j.2168-0159.2013.tb06497.x
Autor:
Sung Gu Kang, Jeong Hwan Yoon, Sung-il Park, Tae-Hoon Yoon, Ki-Han Kim, Yu Ri Shim, Byeong Koo Kim, Sun-Wook Choi, Sun Yong Lee, Dong Han Song
Publikováno v:
Journal of the Optical Society of Korea. 17:200-204
We propose a cell structure for the fast switching of liquid crystals by the fringe field. By forming protrusion between patterned electrodes, we can obtain enhancement of response time. The protrusion reduces the effective cell gap, with which a fas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e679210406a71add6e3491d13d6b182
https://doi.org/10.3807/josk.2013.17.2.200
https://doi.org/10.3807/josk.2013.17.2.200
Publikováno v:
Journal of the Society for Information Display. 21:29-33
We propose a single-layered electrode structure using three voltage levels instead of two to achieve high transmittance in an in-plane switching liquid crystal display device. The proposed structure consists of two pixel electrodes and one common ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e63ca7b4c8eacb81ab2c76ed072177
https://doi.org/10.1002/jsid.144
https://doi.org/10.1002/jsid.144
Autor:
Gak Seok Lee, Young-Ho Seo, Sang-Byung Park, Wang-Cheol Zin, Tae-Hoon Yoon, E-Joon Choi, Ji-Hoon Lee, Dong Han Song
Publikováno v:
J. Mater. Chem. C. 1:451-455
So far there is little understanding of the physicochemical properties of the nematic phase of V-shaped bent-core liquid crystalline (VBLC) molecules. We have synthesized VBLC molecules based on a 2,3-naphthalene central unit, varying the carbon numb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82b90a90cf827ed8c62e95989d5ae9d2
https://doi.org/10.1039/c2tc00169a
https://doi.org/10.1039/c2tc00169a
Autor:
Hoon Kim, Ki-Han Kim, Dong Han Song, Eun-Young Jeon, Byung Wok Park, Hee Seop Kim, Ki-Chul Shin, Tae-Hoon Yoon, Sun-Wook Choi
Publikováno v:
Journal of the Optical Society of Korea. 16:166-169
We propose a high-transmittance multi-domain vertical alignment liquid crystal device with a protrusion structure. Disclination lines, which inevitably appear at the boundaries of domains in a multi-domain structure, can be reduced by adding a protru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f75c50b89e87156b86f3198f21100bce
https://doi.org/10.3807/josk.2012.16.2.166
https://doi.org/10.3807/josk.2012.16.2.166
Autor:
Soo Won Hwang, Joo-Hong Seo, Dong Han Song, Jae Hoon Shin, Mi Hye Yi, Tae-Hoon Yoon, Jae Chang Kim
Publikováno v:
The Journal of Physical Chemistry B. 113:2001-2005
Liquid crystal alignment on ion-beam-treated polyimides with a long alkyl side chain was investigated using near edge X-ray absorption fine structure (NEXAFS) spectroscopy. The long alkyl side chains and the asymmetric distribution and orientational
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f68e5190cd864441970e0c1f4ffd39d
https://doi.org/10.1021/jp809090h
https://doi.org/10.1021/jp809090h
Publikováno v:
Hankook Kwanghak Hoeji. 19:161-168
We propose a novel bistable nematic liquid crystal cell, which has a dual-frequency liquid crystal material and pixel-isolating polymer wall formed by an anisotropic phase separation of a mixture of liquid crystals and UV-curable pre-polymers. The pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec09e9eddd335cb33262606f2119d483
https://doi.org/10.3807/hkh.2008.19.3.161
https://doi.org/10.3807/hkh.2008.19.3.161
Autor:
Hyeok Jin Lee, Tae-Hoon Yoon, Jung-Wook Kim, Ji-Hoon Lee, Soon Joon Rho, Hee-Seop Kim, Dong Han Song, Ki-Han Kim
Publikováno v:
SID Symposium Digest of Technical Papers. 43:1408-1410
We propose a 2-ms nematic LC mode without alignment layers. Three-terminal electrode structure is used to apply in-plane and vertical fields to the LC cell. Initially, nematic LCs are randomly aligned. The dark state and bright state are obtained by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb7f31d5e143f84cfe90f2cf32195792
https://doi.org/10.1002/j.2168-0159.2012.tb06070.x
https://doi.org/10.1002/j.2168-0159.2012.tb06070.x
Publikováno v:
SID Symposium Digest of Technical Papers. 43:1429-1431
We propose a new electrode structure using three voltage levels instead of two for high transmittance in the in-plane switching liquid crystal mode. We confirmed that, by using the proposed structure, the transmittance of a LC cell can be increased f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcbad7b588b217f345e37b2aee489af1
https://doi.org/10.1002/j.2168-0159.2012.tb06076.x
https://doi.org/10.1002/j.2168-0159.2012.tb06076.x
Publikováno v:
SID Symposium Digest of Technical Papers. 42:1714-1716
We propose a three-terminal dye-doped LC device that is switchable between reflective and transmissive modes without image inversion. An additional LC panel or optical components are not needed for the proposed device, differently from conventional m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74d7eeeba8371b751aec35e0b782c660
https://doi.org/10.1889/1.3621214
https://doi.org/10.1889/1.3621214