Light source system for a color flat panel display
First Claim
Patent Images
1. A system for operating a color flat panel display, comprising:
- the color flat panel display having a bottom surface and having a reflector to reflect ambient light for viewing of the color flat panel display, the color flat panel display having an adjustable color depth;
a light source for emitting light through the bottom surface of the color flat panel display; and
a display processing device coupled to the color flat panel display for decreasing the color depth of the color display when the light source is activated and increasing the color depth of the color display when the light source is deactivated;
wherein the color flat panel display is configured to allow more reflection of ambient light than transmission of light emitted from the light source;
wherein the color depth is decreased to no less than three colors when the light source is activated.
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Abstract
A system for operating a color flat panel display (FPD) is provided that includes a color FPD, a light source, and a display processing device. The color FPD has an adjustable color depth and is configured to reflect ambient light. The light source transmits light through the bottom surface of the color FPD. The display processing device is coupled to the color FPD and decreases the color depth of the color FPD when the light source is activated and increases the color depth of the color FPD when the light source is turned off.
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Citations
32 Claims
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1. A system for operating a color flat panel display, comprising:
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the color flat panel display having a bottom surface and having a reflector to reflect ambient light for viewing of the color flat panel display, the color flat panel display having an adjustable color depth; a light source for emitting light through the bottom surface of the color flat panel display; and a display processing device coupled to the color flat panel display for decreasing the color depth of the color display when the light source is activated and increasing the color depth of the color display when the light source is deactivated; wherein the color flat panel display is configured to allow more reflection of ambient light than transmission of light emitted from the light source; wherein the color depth is decreased to no less than three colors when the light source is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for operating a color flat panel display, comprising:
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the color flat panel display having a bottom surface and having a reflector to reflect ambient light for viewing of the color flat panel display, where the color flat panel display has an adjustable color depth; a light source for emitting light through the bottom surface of the color flat panel display; and a display processing device coupled to the color flat panel display for decreasing the color depth of the color display when the light source is activated and increasing the color depth of the color display when the light source is deactivated, wherein the color depth is decreased to no less than three colors when the light source is activated. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A color liquid crystal display (LCD) module, comprising:
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an upper transparent plate having a front polarizer and having a top surface for viewing; a lower transparent plate having a bottom surface and a rear polarizer; a liquid crystal layer between the upper transparent plate and the lower transparent plate for adjusting color depth of light passing through the liquid crystal layer; a color filter for filtering light; an electroluminescent (EL) light source for emitting light through the bottom surface of the lower transparent plate; and a reflector for reflecting ambient light back through the liquid crystal layer and for passing light from the EL light source; wherein the liquid crystal decreases the color depth when the EL light source is activated and increases the color depth when the light source is deactivated wherein the color depth is decreased to a set of no less than three colors when the EL light source is activated. - View Dependent Claims (22, 23)
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24. A method of operating a color flat panel display, the color flat panel display having a color depth, having a light source and a reflector, comprising:
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receiving input for controlling the light source to one of activate and deactivate; controlling the light source, in response to the input, to one of activate and deactivate; and decreasing the color depth of the color flat panel display when the light source is activated and increasing the color depth of the color panel display when the light source is deactivated; wherein the color depth is decreased to a set of no less than three colors when the light source is activated. - View Dependent Claims (25, 26, 27, 28)
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29. A method of operating a color liquid crystal display (LCD) module, the LCD module comprising:
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an upper transparent plate having a front polarizer and having a top surface for viewing; a lower transparent plate having a bottom surface and a rear polarizer; a liquid crystal layer between the upper transparent plate and the lower transparent plate for adjusting color depth of light passing through the liquid crystal layer; a color filter for filtering light; an electroluminescent (EL) light source for emitting light through the bottom surface of the lower transparent plate; and a reflector for reflecting ambient light back through the liquid crystal layer 2nd for passing light from the EL light source; the method comprising; decreasing the color depth when the EL light source is activated and increasing the color depth when the EL light source is deactivated; wherein the color depth is decreased to a set of no less than three colors when the EL light source is activated. - View Dependent Claims (30, 31, 32)
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Specification