Row and column drivers for addressing full color and video rate antiferroelectric liquid crystal microdisplays

J. M. Sanchez-Pena; J. I. Santos; R. Manzanares; I. Perez; V. Urruchi; J. C. Torres

doi:10.1117/12.608579

7 July 2005 Row and column drivers for addressing full color and video rate antiferroelectric liquid crystal microdisplays

J. M. Sanchez-Pena, J. I. Santos, R. Manzanares, I. Perez, V. Urruchi, J. C. Torres

Author Affiliations +

Proceedings Volume 5840, Photonic Materials, Devices, and Applications; (2005) https://doi.org/10.1117/12.608579
Event: Microtechnologies for the New Millennium 2005, 2005, Sevilla, Spain

Abstract

Flat panel display technology constitutes the fastest growing segment of the semiconductor industry. Presently, the majority of display related research is focused on the application of electrooptic effects due to the ease and efficiency of molecular reorientation with an applied voltage. One such area of study is the surface stabilized ferroelectric liquid crystal (SSFLC) display, which has many advantages over conventional cathode ray tubes as well as other types of liquid crystal displays. Antiferroelectric liquid crystal (AFLC) displays have unique electrooptical properties such as tristate switching behaviour, fast response, intrinsic analogue grey scale and a wide viewing angle that lead these materials in very attractive candidates for their potential use in high-resolution flat panel displays and microdisplays for computers and TV. To become a competitive display technology, they should work at video frequency and give full colour and a significant number of the grey levels. These features depend on the AFLC material used in the display device as well as the addressing schemes employed. We present a new programmable driver for addressing passive matrix AFLC displays based on a microcontroller system. This prototype was built with commercial electronic subsystems and it is able to range voltage levels for the row selection of ±40V and has a minimum time resolution of 5 microseconds to shape the frame complete (selection pulse, bias, well and reset slots). The driver can address a 16x160 pixels AFLC display. A grey scale will showed in a preliminary 4x4 pixels AFLC display by using this prototype.

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J. M. Sanchez-Pena, J. I. Santos, R. Manzanares, I. Perez, V. Urruchi, and J. C. Torres "Row and column drivers for addressing full color and video rate antiferroelectric liquid crystal microdisplays", Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); https://doi.org/10.1117/12.608579

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KEYWORDS

LCDs

Liquid crystals

Light emitting diodes

Video

Prototyping

Electro optics

Flat panel displays

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