Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-10-04
1998-03-24
Powell, Mark R.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 96, H04N 574, G02F 1135
Patent
active
057317976
ABSTRACT:
A driving method for a spatial light modulator can provide bright image, images of high contrast and resolution with no persistence and instability, and can be used in a projection display system. The spatial light modulator is prepared by sandwiching a ferroelectric liquid crystal layer between a first substrate and a second substrate. The first substrate is prepared by sequentially laminating a transparent conductive electrode and a photoconductive layer with rectifying properties on a glass substrate. On the photoconductive layer, a reflective layer and an alignment layer for aligning a liquid crystal layer are then laminated. The second substrate is prepared by laminating a transparent conductive electrode and an alignment layer on a glass substrate. Alternating current voltage having a waveform of inconsistent cycles is applied to a section between the transparent conductive electrodes.
REFERENCES:
patent: 4389096 (1983-06-01), Hori et al.
patent: 4639722 (1987-01-01), Urabe et al.
patent: 4738515 (1988-04-01), Okada et al.
patent: 5117298 (1992-05-01), Hirai
patent: 5177475 (1993-01-01), Stephany et al.
patent: 5178445 (1993-01-01), Moddel et al.
patent: 5231282 (1993-07-01), Nishi et al.
patent: 5260815 (1993-11-01), Takizawa
patent: 5281806 (1994-01-01), Nishi et al.
patent: 5416621 (1995-05-01), Tanaka et al.
patent: 5436742 (1995-07-01), Tanaka et al.
patent: 5583676 (1996-12-01), Akiyama et al.
Yukio Tanaka et al., "Analysis of Charge-Controlled Gray Scale in Ferroelectric Liquid Crystal Optically Addressed Spatial Light Modulator", Jpn. J. Appl. Phys. vol. 33 (1994) pp. 3469-3477, Part 1, No. 6A, Jun. 1994.
Akiyama Koji
Ogawa Hisahito
Ogiwara Akifumi
Tanaka Yukio
Tsutsui Hiroshi
Matsushita Electric - Industrial Co., Ltd.
Powell Mark R.
LandOfFree
Driving method for spatial light modulator and projection displa does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Driving method for spatial light modulator and projection displa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving method for spatial light modulator and projection displa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2292384