Title:
ELEVATOR DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/040329
Kind Code:
A1
Abstract:
An elevator display system of the present invention comprises: an elevator shaft of which one or more surfaces are transparent, wherein one or more PDLC films are provided on the transparent surfaces; an elevator car of which one or more parts are transparent such that sight is secured in a direction of the transparent surfaces of the elevator shaft, and which comprises a distance measuring sensor in one or more of a top portion and a bottom portion thereof; a projector for projecting an image onto the transparent surfaces of the elevator shaft; and a control module comprising a tracking unit for determining a location (L) of the elevator car from information collected by the distance measuring sensor and a control unit for controlling a voltage applied to the plurality of PDLC films according to the location of the elevator car.
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Inventors:
KANG IN CHUL (KR)
Application Number:
PCT/KR2020/011166
Publication Date:
March 04, 2021
Filing Date:
August 21, 2020
Export Citation:
Assignee:
HOLOTIVE GLOBAL CO LTD (KR)
International Classes:
B66B3/02; B66B1/34; B66B17/36; G01B21/16; G01D21/02; G02F1/1334; G09F19/18
Foreign References:
| JP2017165514A | 2017-09-21 | |||
| JP2001130845A | 2001-05-15 | |||
| KR101441584B1 | 2014-09-23 | |||
| KR20180052203A | 2018-05-18 | |||
| KR20120064802A | 2012-06-20 | |||
| KR102057734B1 | 2020-01-22 |
Attorney, Agent or Firm:
CHA, Sang Min et al. (KR)
Download PDF:
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