Low-cost Smear Reduction for Digital Displays

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8224-09-C-0031
Agency Tracking Number: F083-238-0075
Amount: $99,982.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: AF083-238
Solicitation Number: 2008.3
Small Business Information
SA Photonics
650 5th Street, Suite 505, San Francisco, CA, 94107
DUNS: 119301831
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Michael Browne
 VP of Product Development
 (408) 348-4426
 m.browne@saphotonics.com
Business Contact
 James Coward
Title: President
Phone: (415) 977-0553
Email: j.coward@saphotonics.com
Research Institution
N/A
Abstract
Motion blur or smear can limit the performance of liquid crystal displays (LCDs).  Its cause is attributable to two main factors the relatively slow LCD response time and the non-impulse (sample-and-hold) nature of LCD pixel addressing.  The first effect causes the image from one frame to persist into the subsequent frame, while the second effect ensures that the image generated in a particular frame is present up to the very end of that frame, regardless of the speed of response of the device.  The transient response time of the eye permits the afterimage of the previous frame to be perceived, leading to the appearance of blur.  Because a significant amount of money has been spent by the display industry to address smearing in large area and rear projection displays, we feel that the Air Force will get best value by focusing on reducing motion blur in head mounted displays.   SA Photonics proposes a number of low-cost, innovative methods in reducing smearing in microdisplays used in head mounted displays.  In addition, we will develop a unique smearing identification system that combines the speed of a digital evaluation system with a user-centered system for a quantitative evaluation of on blur reduction. BENEFIT: A low-cost smear reduction technique for microdisplays will benefit the Air Force for both its simulator and flight head mounted displays.  In simulators, pilots will not see blur, which can lead to negative training and for flight applications, the HMD will not limit the perceived resolution of the sensor system.  There is a very big market for reducing smearing in personal video display devices in the commercial market.

* information listed above is at the time of submission.

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