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US 2003/0197671 A1Published application
Method and apparatus for a flat panel display having reduced power consumption
AssigneeIntel Corporation
InventorDon Nguyen
Life of this patent
Estimating the term…
Abstract
A flat panel display is described having a matrix of liquid crystals, wherein the liquid crystals have a common node. A pair of voltages that are applied to the common node help determine the rms voltages that are applied to the liquid crystals. The pair of voltages are tailored to bring a maximum rms voltage that is applied to the liquid crystals so as to fall along the lower knee of a transmittance vs. rms voltage curve that characterizes the performance of the liquid crystals.
Claims31
An apparatus, comprising:
- a flat panel display having a matrix of liquid crystals, wherein said liquid crystals have a common node, wherein a pair of voltages applied to said common node helps determine the rms voltages that are applied to said liquid crystals, wherein said pair of voltages are tailored to bring a maximum rms voltage that is applied to said liquid crystals so as to fall along the lower knee of a transmittance vs. rms voltage curve that characterizes the performance of said liquid crystals.
An apparatus, comprising:
- a) a flat panel display having a matrix of liquid crystals, wherein said liquid crystals have a common node, wherein a pair of voltages applied to said common node helps determine the rms voltages that are applied to said liquid crystals, wherein said pair of voltages are tailored to bring a maximum rms voltage that is applied to said liquid crystals so as to fall along the lower knee of a transmittance vs. rms voltage curve that characterizes the performance of said liquid crystals;
- and
- b) a central processing unit (CPU) that can execute software that determines content to be displayed on said flat panel display.
A method comprising,
- applying alternating column voltages and alternating common voltages to a circuit that drives a liquid crystal, said alternating column voltages and said alternating common voltages producing rms voltages that are applied to said liquid crystal circuit over an operable rms voltage range, said alternating common voltages tailored to bound said operable rms voltage range so as not to extend beyond a lower knee region of a transmittance vs. rms voltage curve that characterizes the performance of said liquid crystal.
Dependencies are inferred from the claim text.