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Optical Devices
Ghent LC Group
GID

EU Framework 5 Project LCOS4LCOS

Partners:

Thomson (F), Merck (G), Thales LCD (F), ATMEL (F), IMEC (B), UCL (GB)

Aims:

To design a low cost projection TV display including an innovative high illumination optical engine based on a single Liquid Crystal on Silicon (LCOS) chip.

By combining the director modelling, optical modelling and a commercial ray tracing simulation package the optical properties of the whole illumination, projection and optical engine system can be predicted.

Fig. 1: Optical System

Fig. 2: Optical modelling of the reflectance from a corner between 10 micrometre pitch pixels in a pixel-by-pixel chequerboard pattern

Fig. 3: Effect of Temperature on Switching

Fig. 4: Optical reflectance of a pixel in terms of wavelength and polariser angle. Results used for testing cell thickness.

Fig.5: Pixel Locations on Array

Fig. 6: Angular distribution of light reflected from the different areas of the 1” display.

Overall Contrast Ratio 925:1

This page last modified 2 June, 2006 by r.james