Demonstration of a technological prototype of an active‐matrix BiNem liquid‐crystal display | Zendy

Joly Stéphane | Zendy; Thomas Patrick | Zendy; Osterman Jesper | Zendy; Simon Arnaud | Zendy; Lallemant Sylvain | Zendy; Faget Luc | Zendy; Laffitte JeanDenis | Zendy; Irzyk Michael | Zendy; Madsen Louise | Zendy; Angelé Jacques | Zendy; Leblanc François | Zendy; MartinotLagarde Philippe | Zendy

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Demonstration of a technological prototype of an active‐matrix BiNem liquid‐crystal display

Author(s) -

Joly Stéphane,

Thomas Patrick,

Osterman Jesper,

Simon Arnaud,

Lallemant Sylvain,

Faget Luc,

Laffitte JeanDenis,

Irzyk Michael,

Madsen Louise,

Angelé Jacques,

Leblanc François,

MartinotLagarde Philippe

Publication year - 2010

Publication title -

journal of the society for information display

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.578

H-Index - 52

eISSN - 1938-3657

pISSN - 1071-0922

DOI - 10.1889/jsid18.12.1033

Subject(s) - scrolling , bistability , liquid crystal display , polarizer , computer science , optics , backlight , active matrix , viewing angle , transmittance , computer graphics (images) , materials science , mode (computer interface) , liquid crystal , matrix (chemical analysis) , diffuser (optics) , optoelectronics , birefringence , physics , layer (electronics) , composite material , operating system , thin film transistor , light source

— The first implementation of active‐matrix addressing on a BiNem bistable nematic liquid‐crystal display has been demonstrated. Compared to previous passive‐matrix addressing, major improvements have been made for the bistable mode: a smoother image refreshment, shorter refreshing frame time compatible with that of high‐resolution e‐book displays, the use of a touch screen for interactive functions such as hand‐writing, a virtual keyboard, improved functionality for scrolling menus, partial refreshment, etc . On the same display but in the monostable mode, by using electrically controlled birefringence (ECB), the potential of displaying moving pictures at a rate of 25 images/sec, at an extended room temperature, has been demonstrated. In the ECB monostable mode, static images can be displayed down to −20°C. A new transflective single‐polarizer optical mode has been developed to optimize the indoor and outdoor readability of the display. By lowering the surface reflection and enhancing the panel transmission, a contrast ratio of 94:1 and a transmittance of 17% have been achieved.

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