Greyscale in Zenithal Bistable LCD: The Route to Ultra-low Power Colour Displays
نویسنده
چکیده
Zenithal Bistable Devices (ZBD) exhibit rugged image storage, excellent optical performance, fast latching and infinite multiplexibility. These properties arise from the use of the grating layer used to align a nematic liquid crystal. Such gratings also offer a high degree of design flexibility. In the present work, grating shape is varied within each pixel to introduce error-free analogue greyscales. Passive matrix waveforms, suitable for use with commercial STN drivers are reported, and shown to produce at least 7 errorfree greys in a test cell. A method for achieving 64 static greys is described.
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تاریخ انتشار 2002