Active matrix light emitting diode pixel structure and concomitant method
AssigneesSarnoff Corporation, Mitsubishi Chemical Corporation
InventorsMichael Gillis Kane, James Harold Atherton, Roger Green Stewart, Frank Paul Cuomo
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Abstract
LED pixel structures and methods that improve brightness uniformity by reducing current nonuniformities in a light-emitting diode of the pixel structures are disclosed.
Claims4
A display comprising:
- at least one autozeroing pixel structure;
- an autozero line, coupled to said autozeroing pixel structure, for allowing said autozeroing pixel structure to perform autozeroing;
- a first line, coupled to said autozeroing pixel structure, for supplying a voltage to a light element of said autozeroing pixel structure;
- and
- a second line, coupled to said autozeroing pixel structure, for carrying a voltage to said autozeroing pixel structure that permits a range of autozero voltages to be extended.
A method of illuminating a display having at least one pixel, where said pixel contains a circuit for controlling application of energy to a light element, said method comprising the steps of:
- (a) autozeroing the pixel with an autozeroing pixel structure, wherein said autozeming step (a) comprises the step of applying a reference black level;
- (b) loading data onto said pixel via a data line;
- and
- (c) illuminating said light element in accordance with said stored data.
A computer-readable medium having stored thereon a plurality of instructions, the plurality of Instructions including instructions which, when executed by a processor, cause the processor to perform the steps comprising of:
- (a) autozeroing the pixel with an autozeroing pixel structure, wherein said autozeroing step (a) comprises the step of applying a reference black level;
- (b) loading data onto said pixel via a data line;
- and
- (c) illuminating said light element in accordance with said stored data.
A system comprising:
- a display controller;
- and
- a display, coupled to said display controller, where said display comprises:
- at least one autozeroing pixel structure;
- an autozero line, coupled to said autozeroing pixel structure, for allowing said autozeroing pixel structure to perform autozeroing;
- a first line, coupled to said autozeroing pixel structure, for supplying a voltage to
- a light element of said autozeroing pixel structure;
- and
- a second line, coupled to said autozeroing pixel structure, for carrying a voltage to said autozeroing pixel structure that permits a range of autozero voltages to be extended.
Dependencies are inferred from the claim text.