Title:
OPTICAL PATH CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/071133
Kind Code:
A1
Abstract:
An optical path control member according to an embodiment comprises: a first substrate; a first electrode provided on the upper portion of the first substrate; a second substrate provided on the first substrate; a second electrode provided on the lower portion of the second substrate; and an optical conversion unit provided between the first electrode and the second electrode, wherein the optical conversion unit comprises partition wall parts and accommodation parts which are alternately arranged. The accommodation parts have a light transmission rate that varies according to the application of a voltage, and the accommodation parts comprise a plurality of unit accommodation cells spaced apart from each other, and comprises a dispersion and light-absorbing particles which are dispersed in the dispersion. The light-absorbing particles comprise first particles and second particles, wherein the diameter of the first particles is greater than that of the second particles, and the surfaces of the first particles and the surfaces of the second particles are charged with the same polarity.
Inventors:
LEE JONG SIK (KR)
KIM BYUNG SOOK (KR)
PARK JIN GYEONG (KR)
LEE IN HAE (KR)
HAN YOUNG JU (KR)
KIM BYUNG SOOK (KR)
PARK JIN GYEONG (KR)
LEE IN HAE (KR)
HAN YOUNG JU (KR)
Application Number:
PCT/KR2020/012732
Publication Date:
April 15, 2021
Filing Date:
September 21, 2020
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G02B26/08; G02B1/04; G02B5/20; G02F1/1335
Foreign References:
| KR20070041648A | 2007-04-19 | |||
| KR20120034999A | 2012-04-13 | |||
| KR20130078440A | 2013-07-10 | |||
| US20040190113A1 | 2004-09-30 | |||
| US20060202949A1 | 2006-09-14 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
Download PDF: