9.4: A Novel 0.82″ QXGA Analog LCOS Micro Display for Professional Applications

Abstract

A 0.82" QXGA (2048x1536) LCOS panel for professional projection applications is presented. To meet the high requirements, a new scalable and testable analog layout architecture is presented featuring small pixel sizes and maximum signal integrity, allowing large resolutions and high illumination levels. The QXGA-panel is designed in C35_2P4M and has 70 dies/ wafer. SID 07 DIGEST • 105 ISSN/007-0966X/07/3801-0105-$1.00 © 2007 SID

8.1: LCOS Devices for Professional Projection Displays

“…As pixel sizes decreases and light flux increases, great care had to be taken in the lay-outing of the light shield made of overlapping metal layers. This lead to a new layout [6] which was realized in a 0.35 µm CMOS process with a 2 poly -4 metal stack and a 18V high voltage extension. Figure 4 shows a picture taken of a projected image and a detail of the projected image proving the excellent image quality achievable with a QXGA VAN LCOS projection setup.…”

Projection display for the generation of two orthogonal polarized images using liquid crystal on silicon panels and light emitting diodes

“…Four 0:82 in: QXGA (quad extended graphics array) resolution (2048 × 1536) vertically aligned nematic LCOS microdisplays from Gemidis [20] are used to modulate the images. To precisely align the pixels of all LCOS panels, we attached each LCOS panel to a six-degree-of-freedom positioning stage.…”

Digital Driving Method for Low Frame Frequency and 256 Gray Scales in Liquid Crystal on Silicon Panels

“…LCoS using a single crystalline silicon wafer has advantages over both DLP and HTPS LCD technologies including high image quality and low cost [7]. LCoS devices have been integrated in consumer products for many years, primarily in largesized beam projectors [8]. A pico-projector embedded in mobile devices uses only a single panel unlike a large projector which uses three panels, one each for red, green, and blue.…”