Alignment-controlled holographic polymer dispersed liquid crystal (HPDLC) for reflective display devices

1998 ◽  
Author(s):  
Kinya Kato ◽  
Tomoko Hisaki ◽  
Munekazu Date ◽  
Hideki Nakajima
Keyword(s):  
Liquid Crystal ◽  
Display Devices ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Reflective Display

Studies of polymer ball type polymer dispersed liquid crystal films

1996 ◽  
Vol 425 ◽  
Author(s):  
S. J. Chang ◽  
Y. C. Yin ◽  
C. M. Lin ◽  
A. Y. G. Fuh
Keyword(s):  
Liquid Crystal ◽  
Distinct Type ◽  
Micro Structure ◽  
Display Devices ◽  
Liquid Crystal Films ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed Liquid Crystals ◽  
Crystal Films ◽  
Polymer Dispersed ◽  
Optical Behavior

AbstractPolymer dispersed liquid crystals ( PDLC ) are potentially useful as new types of display devices. By applying an electric field, one can switch the PDLC cell from a highly scattering opaque state to a transparent state. Normal PDLC cells consist of liquid crystal droplets, having sizes on the order of micrometers, embedded in a transparent polymer matrix. In this paper, we report the development of a new kind of PDLC cell with a distinct type of polymer morphology, teferred to as “reverse ” or “polymer ball ” type. The electro-optical behavior and the micro structure of the PDLC films were investigated by a He-Ne laser and the scanning electron microscopy ( SEA ) respectively.

Advances in Holographic Polymer Dispersed Liquid Crystal Technology

1999 ◽  
Vol 559 ◽  
Author(s):  
C. C. Bowley ◽  
A. K. Fontecchio ◽  
J.-J. Lin ◽  
H. Yuan ◽  
G. P. Crawford
Keyword(s):  
Liquid Crystal ◽  
Phenomenological Model ◽  
Polymer Dispersed Liquid Crystal ◽  
Unusual Effect ◽  
Recent Advances ◽  
Reflection Peak ◽  
Polymer Dispersed ◽  
Dual Domain ◽  
Reflective Display ◽  
Liquid Crystal Technology

ABSTRACTWe discuss recent advances in reflective holographically-formed polymer dispersed liquid crystal materials in the context of their suitability for reflective display applications. A dual-domain phenomenon resulting in a broadened reflection peak is presented. A simple phenomenological model is developed to explain this unusual effect The effect of monomer functionality on the reflectance characteristics of these materials is also discussed. Monomers of effective functionality ∼4.5 yield the brightest holograms, however, the data suggests that these systems are currently far from optimal.

22.2: RGB-Stacked Holographic Polymer Dispersed Liquid Crystal Device for Color Reflective Display

2001 ◽  
Vol 32 (1) ◽  
pp. 344 ◽  
Author(s):  
Goroh Saitoh ◽  
Hideya Murai ◽  
Shin-ichi Uehara ◽  
Tomohisa Gotoh ◽  
Koji Mimura ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Device ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Reflective Display
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