Display device for displaying two graphics

Display device for displaying two graphics

A display device for displaying two graphics is provided. The display device has first and a second light transmitting substrates, each having a front surface and a rear surface, the first substrate including at least one etched region corresponding to a first graphic, and the second substrate inclu...

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Hauptverfasser: DAN GULLICK, MARK JAMES ARTHUR BAKER
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
BASIC ELECTRIC ELEMENTS
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
LABELS OR NAME-PLATES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
RELAYS
SEALS
SELECTORS
SIGNS
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creator DAN GULLICK
MARK JAMES ARTHUR BAKER
description A display device for displaying two graphics is provided. The display device has first and a second light transmitting substrates, each having a front surface and a rear surface, the first substrate including at least one etched region corresponding to a first graphic, and the second substrate including at least one etched region corresponding to an inverse or negative of the first graphic. The display device also has first and second light sources arranged to emit light into the first and second substrates. The first substrate conveys the light to the etched region(s) of the first substrate which then scatters light towards the user. The second light source is behind the second substrate and emits light through both substrates towards the user. When the first light source is illuminated only the first graphic is displayed, and when the second light source is illuminated only the second graphic is displayed.
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subjects ADVERTISING
BASIC ELECTRIC ELEMENTS
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
LABELS OR NAME-PLATES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
RELAYS
SEALS
SELECTORS
SIGNS
title Display device for displaying two graphics
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