Browse Prior Art Database

Nonglare Display Window for Information Handling Machine

IP.com Disclosure Number: IPCOM000079717D
Original Publication Date: 1973-Aug-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Wittner, E: AUTHOR

Abstract

An information handling machine 10 has a display opening 11 within housing 12, for viewing characters or the like produced by manipulation of keys 13 and related operating elements thereof, which might also be recorded on paper 14. A nonglare display window structure comprises a curved transparent window element 15 and a flat wall 16 attached to housing 12 within opening 11.

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Nonglare Display Window for Information Handling Machine

An information handling machine 10 has a display opening 11 within housing 12, for viewing characters or the like produced by manipulation of keys 13 and related operating elements thereof, which might also be recorded on paper 14. A nonglare display window structure comprises a curved transparent window element 15 and a flat wall 16 attached to housing 12 within opening 11.

One or more light-emitting elements 17 are located behind the transparent window element 15 for displaying data, as energized by the key activated elements. Window element 15 is curved preferably in the form of a sector of a circular cylinder, so that external background incident light is reflected away from the viewer peering into the window 11 onto the surface of wall 16, which is made to be nonreflective. Likewise, stray light from emitters 17 striking wall 16 is not reflected back to the window element 15. With this structure, glare on window element 15 is eliminated and viewing is greatly improved. If emitter 17 emits colored light, the window element 15 can be lightly tinted to enhance the color effect.

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