Liquid crystal display having a field emission backlight
First Claim
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1. A method for manufacturing a display device comprising the steps of:
- depositing a conductor on an anode plate;
aligning a mask with apertures on the anode plate such that apertures are predetermined locations over selected regions on the anode plate;
setting electric field lines between the mask and the anode plate by applying one voltage to the conductor and applying another voltage on the mask; and
forming phosphor elements on the selected regions by injecting a flux of charged phosphor particles toward the mask, the charge of the charged phosphor particles being selected such that the charged phosphor particles are forced by the electric field lines to deposit on the selected regions.
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Abstract
An LCD display has a programmable backlight device that produces multiple different color fields from multiple different phosphor elements. The backlight device can be a low resolution FED device. The phosphor is applied by an electrophotographic screening process or direct electrostatic screening process. The FED device can further incorporate a wide gamut phosphor.
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Citations
10 Claims
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1. A method for manufacturing a display device comprising the steps of:
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depositing a conductor on an anode plate; aligning a mask with apertures on the anode plate such that apertures are predetermined locations over selected regions on the anode plate; setting electric field lines between the mask and the anode plate by applying one voltage to the conductor and applying another voltage on the mask; and forming phosphor elements on the selected regions by injecting a flux of charged phosphor particles toward the mask, the charge of the charged phosphor particles being selected such that the charged phosphor particles are forced by the electric field lines to deposit on the selected regions. - View Dependent Claims (2, 3, 4)
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5. The method of claim I further comprising the steps of aligning the anode plate with a cathode plate having electron field emitters associated with the phosphor elements, whereby the display is a field emission display device.
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6. A method for manufacturing a display device comprising the steps of
depositing an organic conductor film on an anode plate; -
depositing an organic photoconductor film on an anode plate; charging the organic photoconductor film; discharging portions of the organic photoconductor by selectively exposing the portions to light; applying a flux of charged phosphor of one polarity to the anode plate; and terminating the flux when the charged phosphor fills its intended target regions. - View Dependent Claims (7, 8, 9, 10)
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Specification