Electro-Optical Properties of Robust Flexible VA LCDs Using Polymerization Induced Phase Separation

We developed flexible VA LCDs with high electro-optical performance and thermal reliability for flexible display applications. It was achieved by applying the precise control of phase separation, forming well defined cylindrical liquid crystal domains surrounded by polymer matrix. The LC domains hav...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2015-05, Vol.612 (1), p.193-200
Main Authors: Hong, Zhe, Jin, Yan, Lee, Burm Young, Kwon, Soon-Bum
Format: Article
Language:English
Subjects:
Alignment
Contact
Electrooptical
Flexible Display
Liquid crystal displays
Liquid crystals
Low Driving Voltage
Matrix
Mechanical Stability
Molecules
Optical properties
Phase separation
Phase transitions
Polymerization
Polymerization Induced Phase Separation
Reliability
Transmittance
VA LCD
Voltage
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Summary:We developed flexible VA LCDs with high electro-optical performance and thermal reliability for flexible display applications. It was achieved by applying the precise control of phase separation, forming well defined cylindrical liquid crystal domains surrounded by polymer matrix. The LC domains have uniform size and the LC molecules inside the domains were well aligned through the contact to vertical alignment layers coated on plastic substrates, so that low driving voltage, high transmittance and high contrast ratio were achieved. We fabricated 5-inch flexible VA LCD panel, showing good electro-optical properties and high mechanical stability.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/07315171.2015.1031571