Display circuit incorporating data feedback loop
AssigneePixtronix, Inc.
InventorIlias Pappas
Life of this patent
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Abstract
This disclosure provides systems, methods, and apparatus for providing pixel circuits for controlling the state of operation of light modulators in a display device. The state of operation of the light modulator can be controlled by the pixel circuit based on a data voltage stored in a data storage element of the pixel circuit. The pixel circuit includes an actuation circuit for providing an actuation voltage to the light modulator and a feedback circuit for providing a positive feedback voltage from an output node of the actuation circuit to an input node of the actuation circuit. In some implementations, the feedback circuit includes the data storage element connected between the input node and the output node.
Claims30
An apparatus, comprising:
- a data loading circuit capable of accepting a data voltage;
- a light modulator capable of selectively allowing passage of light;
- an actuation circuit having an input node and an output node, the input node coupled to the data loading circuit and the output node coupled to the light modulator, capable of providing an actuation voltage to the light modulator based on the data voltage, and
- a positive feedback circuit capable of providing a positive feedback voltage from the output node to the input node.
A method, comprising:
- accepting a data voltage from a data interconnect;
- discharging an output node of an actuation circuit, wherein the output node is coupled to a light modulator capable of switching between two discrete states;
- charging the output node to an actuation voltage via the actuation circuit based on the data voltage;
- and
- providing a positive feedback voltage from the output node to an input node of the actuation circuit.
An apparatus including a circuit for controlling a display element, comprising:
- data acquiring means for accepting a data voltage from a data interconnect;
- discharging means for discharging an output of an actuation circuit, the output node coupled to a light modulator;
- charging means for charging the output node to an actuation voltage via the actuation circuit based on the data voltage;
- and
- feedback means providing a positive feedback voltage from the output node to an input node of the actuation circuit.
Dependencies are inferred from the claim text.