Holographic polymer-dispersed liquid crystal sample characterization

Frederick M. Meyer; Darrel G. Hopper

doi:10.1117/12.439122

7 September 2001 Holographic polymer-dispersed liquid crystal sample characterization

Proceedings Volume 4362, Cockpit Displays VIII: Displays for Defense Applications; (2001) https://doi.org/10.1117/12.439122
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

Holographically formed polymer dispersed light crystal (HPDLC) materials have the potential to enable creation of a full motion video rate reflective display technology with excellent color, contrast, reflectance and good power efficiency. Current HPDLC display research focuses on the improvement of angular viewability and reduction of the drive voltage. Measurements of HPDLC devices have begun at AFRL to verify and expand measurements made by dpiX LLC. Specular and diffuse reflections are examined in terms of angular and spectral reflectance distributions. Presently reported measurements verify the ability of an HPDLC device to shift the reflected signal image away from the front- surface substrate specular angle (source image glare) by some 10 degree(s) and to expand the spread of the reflected signal image (full-width-half maximum) from a bout 1-2 degree(s) to 4- 10 degree(s) for a point illumination source under worst orientation conditions. Colors were stable over 20 degree(s) of viewing angle. Potential defense applications include replacing paper in cockpits and crewstations.

Citation Download Citation

Frederick M. Meyer and Darrel G. Hopper "Holographic polymer-dispersed liquid crystal sample characterization", Proc. SPIE 4362, Cockpit Displays VIII: Displays for Defense Applications, (7 September 2001); https://doi.org/10.1117/12.439122

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available