International Business Machines Corporation

William H Barrett

Joseph A Gregory

David L Schaum

Lisa M Mohr

Louis J Remsburger

Samuel A Lucente

Andre Byungyup Minn

Joseph W Braidt

John F Driscoll

Millard G Barr

Screen stand

Cart

Remote control unit

A display workstation comprising a display monitor including an image display device mounted on a base by a mechanism permitting adjustment of the angle of tilt of the image display device, the tilt mechanism including a pair of support members upstanding from the base and providing a gap between the display device and the base between the support members. A cable connector housing is releasably retained in the gap between the support members. Individual cables from peripheral input devices extend to the front of and are releasably coupled to the housing, and a further cable is also coupled to the housing and extends from the rear thereof to a separate display control unit. The housing contains circuits providing electrical connection between the peripheral device cables and the control unit cable.

Display workstation

In order to permit reliable light pen interaction with a black matrix shadow mask CRT, the conventional black carbon matrix is replaced by an IR phosphor. This provides a component of IR radiation irrespective of the particular color of the visible display at any given point, and such component can be detected by conventional silicon photodetector light pens. Preferably the particle size of the IR phosphor is substantially less than that of the primary color phosphors so as to largely retain both the packing density of the original black matrix and the edge definition at the IR phosphor/primary color phosphor boundaries. The IR phosphor particles are also pigmented with black graphite to retain the light-absorbing qualities of the original black matrix.

Color cathode ray tube with infrared emitting phosphor in screen

Growing community of inventors

Woodstock, NY, United States of America

William H Barrett