Use of liquid crystal display technology in ocular prosthesis

Desmond L. Seekola; F. Wilhelm Leuschner

doi:10.1117/12.207502

24 April 1995 Use of liquid crystal display technology in ocular prosthesis

Desmond L. Seekola, F. Wilhelm Leuschner

Proceedings Volume 2408, Liquid Crystal Materials, Devices, and Displays; (1995) https://doi.org/10.1117/12.207502
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

Use of liquid crystal display technology for ocular prosthesis was recently proposed. Liquid crystal light valves are used for the purpose of light modulation to control pupil size proportional to incident light intensity. In the current study two different types of liquid crystal technology are tested for use in a prosthetic eye. The first type is the conventional twisted nematic (TN) cell. The second type of technology is a color dispersion system consisting of liquid crystal droplets in a polymer binder. Because of the principle of operation of the prosthetic device, in the off state the display should block light and appear black. This is easily achieved with TN cells. For the dispersed technology, a colored dispersed system using a black dichroic dye is used so that the display is black in the off state. The response of the two types of technology are measured and compared for ocular prosthesis. Factors such as photostability, battery life, alternate modes of operation, and the use of other types of liquid crystal display technology are also discussed.

Citation Download Citation

Desmond L. Seekola and F. Wilhelm Leuschner "Use of liquid crystal display technology in ocular prosthesis", Proc. SPIE 2408, Liquid Crystal Materials, Devices, and Displays, (24 April 1995); https://doi.org/10.1117/12.207502

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