New plusfactors in an LCD-projector: homogeneous illumination, quick lamp (re-)start, reliable construction, full resolution NTSC

Author

ven den Brandt, A.H.J. ; Blankers, N.J. ; Jinsi, S. ; van Os, P.J.M. ; Stroomer, M.V.C. ; Timmers, W.A.G. ; Verbeek, W.G.C. ; de Werdt, H.A.

Author_Institution

Philips Consumer Electronics, Eindhoven, Netherlands

fYear

1991

fDate

15-17 Oct. 1991

Firstpage

151

Lastpage

154

Abstract

A novel full-resolution NTSC LCD (liquid crystal display) front-projector has been developed. A novel light collection system leads to a uniformly illuminated and bright picture. A newly developed lamp supply enables quick lamp run-up and restart. High-quality flicker-free images are obtained by introducing gamma-correction and line-doubled scanning. The mechanical system assures an accurate and stable position of the optical components, keeping them dust-free and protecting them against damage by vibration or shocks.<>

Keywords

liquid crystal displays; optical projectors; LCD-projector; NTSC; damage; flicker-free images; gamma-correction; homogeneous illumination; light collection; line doubled scanning; line-doubled scanning; liquid crystal display; optical components; shocks; vibration; Cathode ray tubes; Lamps; Lighting; Mirrors; Optical devices; Optical modulation; Optical noise; Optical receivers; Structural beams; TV;

fLanguage

English

Publisher

ieee

Conference_Titel

Display Research Conference, 1991., Conference Record of the 1991 International

Conference_Location

San Diego, CA, USA

Print_ISBN

0-7803-0213-3

Type

conf

DOI

10.1109/DISPL.1991.167456

Filename

167456