The second public version of the VESA Flat Panel Display Measurements Standard (FPDM2) was published with major contributions from NIST. The new document contains revised reflection measurement discussions, measurements of the geometrical imperfections of projection systems, detailed grayscale measurements, a color-gamut area metric, new setup patterns (based upon a NIST collaborative development with Sun Microsystems), and a numerous other enhancements to the first version.

The Display Measurement Assessment Transfer Standards (DMATS) task was enhanced with the addition of the gamut assessment standard (GAS). An initial interlaboratory comparison using the GAS was made with NPL whereby the encouraging results were reported at a technical conference.

NIST has demonstrated how stray light can seriously affect results of small area measurements. Narrow-frustum-SLET (stray-light-elimination-tube) probes have been employed by medical-radiological researcher to attempt to make such small area measurements. A diagnostic apparatus for determining the limitations and successes of the use of such probes has been developed.

Accurate measurements of the luminance observed in near-eye displays (NEDs). These diagnostics included (1) the use of a small mirror between the eye and the eyepiece of a NED where the mirror observed an adjustable light source to be compared with the full-screen color viewed through the NED; (2) an adjustable iris placed between the NED eyepiece and the detector can determine that the ray bundle used in the measurement is consistent with the ray bundle used by the eye.

An invited "Applications Seminar" on Flat Panel Display Measurements and Standards was presented at the Society for Information Display (SID) 2001 International Symposium. The Seminar was attended by approximately 300 people. Emphasis was placed on (1) techniques being as important as good equipment and (2) reflection metrology is more complicated than currently envisioned by the display industry.

Collaborations
In addition to the collaborations that follow naturally from standards activities (see below) and other routine advisory roles, there are some specific collaborations of interest that are currently underway:

We are working with the Food and Drug Administration (FDA) on making small-area measurements of radiological images using stray-light-reducing probes for small-area measurements of luminance.

Robust and meaningful reflection measurements of reflective displays are being developed in collaboration with ISO and EIA standards activities.

Standards Committee Participation
VESA (Video Electronic Standards Association) Display Metrology Committee: E. F. Kelley used to chair this committee, which produced the Flat Panel Display Measurement (FPDM) Standard, a scientific and comprehensive document, prepared with significant input from NIST, to address display metrology. Kelley now serves as its editor and is in the process of generating all the patterns used by the standard.

ISO TC159/SC4/WG2 Visual Display Requirements: P. A. Boynton is a member of this committee, which is developing a revision of all of its display standards. NIST is coordinating the development and evaluation of the metrology sections. (ISO, International Organization for Standardization)

ANSI & PIMA IT7-3 Electronic Projection: P. A. Boynton is a member. The IT7-3 is presently evaluating and revising present ANSI/PIMA projection standards for the future revision. (ANSI, American National Standards Institute; PIMA, Photographic & Imaging Manufacturers Association)

SAE J 1757 Standard Metrology for Vehicular Flat Panel Displays: E. F. Kelley is a member and is providing support in the evaluation of reflection measurement standards. (SAE, Society for Automotive Engineers)

CORM CR-5 (Flat Panel Displays). All project personnel are members. J. M. Libert is working with the committee to evaluate the DMATS and GAS program. (CORM, Council for Optical Radiation Measurements)

CIE TC2-42 Colorimetric Measurements for Visual Displays. P. A. Boynton is a member. The committee is preparing a recommended practice for display colorimetry metrology. (CIE, International Commission on Illumination)