Display providing reversible contrasting indicia
First Claim
Patent Images
1. A display having upper and lower surfaces for receiving both internal and external light sources, comprising:
- indicia disposed on the display;
the indicia providing a first contrast mode when the upper surface of the display is submitted to the external light source;
the indicia providing a second contrast mode when the lower surface of the display is submitted to the internal light source; and
all the indicia being visible in either of the first or second contrast modes.
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Accused Products
Abstract
A display (100) provides reversible contrasting indicia (112, 114) in order to accommodate an increased number of easily distinguishable indicia on the display. The display provides a first contrast mode (200) in which one set of indicia (112) become visually more prominent than another set (114) and a second contrast mode (300) in which the contrast of the first contrast mode is reversed. Selecting between the first and second contrast modes (200, 300) is controlled by backlighting of the display (100).
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Citations
29 Claims
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1. A display having upper and lower surfaces for receiving both internal and external light sources, comprising:
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indicia disposed on the display; the indicia providing a first contrast mode when the upper surface of the display is submitted to the external light source; the indicia providing a second contrast mode when the lower surface of the display is submitted to the internal light source; and all the indicia being visible in either of the first or second contrast modes. - View Dependent Claims (2, 3, 4, 5)
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6. A display having reversible contrasting indicia responsive to an external light source in a first mode of operation and an internal light source in a second mode of operation, comprising:
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a substrate having a substantially opaque background including a series of indicia disposed about the substrate, said series of indicia providing a first contrasting effect in response to the external light source and a second contrasting effect in response to the internal light source; and all of the series of indicia being visible with each of the first or second contrasting effects. - View Dependent Claims (7)
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8. A substrate having a first surface for receiving a first light source and a second surface for receiving a second light source, comprising:
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first and second sets of indicia disposed about the substrate and responsive to the first light source for providing a contrast between the first and second sets of indicia; and said first and second sets of indicia responsive to the second light source for reversing the contrast between the first and second sets of indicia; and all of the first and second sets of indicia being displayed at the same time while maintaining differentiation between the first and second sets of indicia. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A channel selector providing for the simultaneous viewing of all channels indicia for a communication device, including:
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an escutcheon having an upper surface for receiving an external light source and a lower surface for receiving an internal light source; and reversible contrasting indicia disposed about the escutcheon, said reversible contrasting indicia responsive to the internal light source for generating a first contrast mode and responsive to the external light source for generating a second contrast mode, said second contrast mode providing a reverse contrast to the first contrast mode. - View Dependent Claims (17, 18, 19)
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20. A display providing simultaneous viewing Of all channel indicia, comprising:
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an escutcheon having a first surface for receiving light transmitted from a first light source and a second surface for receiving light transmitted from a second light source; and first and second sets of indicia disposed on the escutcheon, the first set of indicia preferentially reflect light received from the first light source, and the second set of indicia preferentially transmit light received from the second light source, when light is received from the first light source, the first set of indicia become more visually prominent than the second set of indicia, and when light is received from the second light source, the second set of indicia become more visually prominent than the first set of indicia.
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21. A two-way radio, comprising:
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a housing; a channel indicator dial disposed on the housing; a light source, capable of being selected and de-selected, located within the housing and beneath the channel indicator dial for transmitting light through the channel indicator dial when selected; and reversible contrast indicia disposed within the channel indicator dial, said reversible contrast indicia providing a first contrast mode in response to said light source being selected and a reversed contrast mode in response to said light source being de-selected, the reversible contrast indicia providing for the simultaneous display of all indicia in both the first and second contrast modes. - View Dependent Claims (22, 23)
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24. A communication device, including:
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a dial; a plurality of alternately contrasted indicia disposed side by side about the dial; and a light source for transmitting light through the dial, said plurality of alternately contrasted indicia reversing in contrast in response to the light being transmitted through the dial. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification