High contrast reflective liquid crystal display using a thermochromic reflector

Title
High contrast reflective liquid crystal display using a thermochromic reflector
Author(s)
곽진석허경찬이종훈권진혁
Keywords
NEMATIC CELL; MODE
Issue Date
201502
Publisher
IOP PUBLISHING LTD
Citation
JOURNAL OF OPTICS, v.17, no.2
Abstract
This paper presents a reflective liquid crystal display (LCD) with a high contrast ratio (CR) combined with mono-type thermochromic materials to solve the low CR of reflective type LCDs. Here, reflective, wide-band, electrically controlled birefringence mode was used as the optical liquid crystal (LC) mode, and a thermochromic material was used as the reflector for the white state and an absorber for the dark state. The combination of LCD and thermochromic material can have a synergistic effect in achieving a better display. By controlling the reflectance of the thermochromic reflector using Joule heating, the proposed reflective LC cell exhibited a high CR of approximately 70:1. The figure was extremely high compared to the approximately 10:1 of a typical reflective LC cell with an optically wide band design. The proposed LC cell configuration is expected to find many outdoor applications which can admit slow response speed.
URI
http://hdl.handle.net/YU.REPOSITORY/33623http://dx.doi.org/10.1088/2040-8978/17/2/025401
ISSN
2040-8978
Appears in Collections:
이과대학 > 물리학과 > Articles
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