Construction of a programmable light source for use as a display calibration artifact

Christine F. Wall; Andrew R. Hanson; Julie A. F. Taylor

doi:10.1117/12.424880

30 April 2001 Construction of a programmable light source for use as a display calibration artifact

Christine F. Wall, Andrew R. Hanson, Julie A. F. Taylor

Proceedings Volume 4295, Flat Panel Display Technology and Display Metrology II; (2001) https://doi.org/10.1117/12.424880
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

A light source with a programmable spectral output was designed and constructed following the identification of limitations in current display calibration techniques. Current calibration of a display measurement instrument compares the measured spectral output of a pre-calibrated reference light source with the calibration data traceable to national standards. This allows correction factor to be calculated for each wavelength and entered into the measurement instrument. However, the reference light source used to create these correction factors is very dissimilar in spectral output to test display such as cathode ray tubes (CRT) or liquid crystal display (LCDs). The dissimilarity between the reference calibration spectrum and the spectrum of the tested display gives errors at some wavelengths, which leads to inaccurate measurement of color and luminance, and inter-instrument disagreement. The development of a light source with a programable spectrum, will allow display measurement instruments to be calibrated against a reference source that mimics the spectrum of the device under test, improving the accuracy of measurements and the agreement between display measurement instruments. This paper describes the prototype programmable source and demonstrates the feasibility of mimicking both CRT and LCD spectra. The programmable source could be used as a transfer standard to assess display measurement techniques in international laboratories.

Citation Download Citation

Christine F. Wall, Andrew R. Hanson, and Julie A. F. Taylor "Construction of a programmable light source for use as a display calibration artifact", Proc. SPIE 4295, Flat Panel Display Technology and Display Metrology II, (30 April 2001); https://doi.org/10.1117/12.424880

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