Display device
First Claim
1. A display device having a transparent display field through which ambient light can pass from the side facing away from an observer to the side facing the observer and on which characters and/or symbols can be presented against a light background, and wherein said display device is operable with a source of light and further comprises:
- a light-guide plate in the display field on the side facing away from the observer, said light-guide plate being formed of transparent material and being positioned for transmitting ambient light via said light-guide plate from a location behind said light-guide plate through said display field toward said observer, said light-guide plate including light-dispersing particles distributed about said light guide plate, said light-guide plate and said source of light being oriented relative to each other for guiding light from said source of light to a region behind said display field for illuminating said display field.
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Accused Products
Abstract
The present invention relates to a display device having a transparent display field through which ambient light can pass from the side facing away from an observer to the side facing the observer. Characters and/or symbols can be presented against a light background on the display field. On the side facing the observer, the display field has a light-guide plate 9 of transparent material in which light-dispensing particles 19 are distributed and into which the light from a source of light 12 can be introduced.
43 Citations
27 Claims
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1. A display device having a transparent display field through which ambient light can pass from the side facing away from an observer to the side facing the observer and on which characters and/or symbols can be presented against a light background, and wherein said display device is operable with a source of light and further comprises:
a light-guide plate in the display field on the side facing away from the observer, said light-guide plate being formed of transparent material and being positioned for transmitting ambient light via said light-guide plate from a location behind said light-guide plate through said display field toward said observer, said light-guide plate including light-dispersing particles distributed about said light guide plate, said light-guide plate and said source of light being oriented relative to each other for guiding light from said source of light to a region behind said display field for illuminating said display field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
Specification