Problems arose even among firms with automatic order display systems.
That would permit a variety of built-in display systems, Ms. Krepiakevich said.
And even though many firms have automatic limit-order display systems, the orders are still not displayed properly.
All of the exchanges studied were found by the commission to allow their traders to override automatic order display systems.
He said the company was also in discussions with helmet manufacturers to integrate the display systems into helmets.
DRS TECHNOLOGIES, Parsippany, N.J., won $16 million in orders from the Lockheed Martin Corp., Bethesda, Md., to provide engineering services for Navy display systems.
In studies at the Palo Alto Research Center, users compared Dr. Baudisch's focus-plus-context screen with two other display systems.
In 1937 Willi and Erika Fehlbaum started manufacturing fixtures and fittings for business premises, and display systems for shop windows, or vitrines: hence the name Vitra.
Patricia McMahon, the vice president for electronic identification and display systems at BAE, said she expected the new contract to be finalized by Oct. 1.
Plenty of stores have had movable, flexible display systems for years, although it was not considered a priority to hang them from the ceiling.
Visual display systems may comprise a calibrated chart and a pointer, an integrated display on a cathode-ray tube, or a digital readout.
