System and method for providing a variable refresh rate of an interferometric modulator display
First Claim
1. A method of updating an image displayed on a display device, the method comprising:
- receiving image data;
setting an indicator to a first state that indicates that said image data has been received subsequent to a previous update of a display device; and
periodically updating at least a portion of said display device to display the image, wherein said updating is deferred for at least one period when said indicator is in a state other than said first state.
3 Assignments
0 Petitions
Accused Products
Abstract
Embodiments includes methods and systems for updating display devices at a variable refresh rate. One embodiment includes a method of updating an image displayed on a display device. The method includes setting an indicator to a first state that indicates that image data has been received subsequent to a previous update of a display device and periodically updating at least a portion of the display device to display the image. The updating is deferred for at least one period when the indicator is in a state other than the first state. In another embodiment, updates of the display are substantially asynchronous and occur as the processor writes data to one or more shift registers. When a shift register is filled, for example, having received data for a row within the display, the data in the shift register is written to the display. Other embodiments include methods of manufacturing such devices.
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Citations
39 Claims
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1. A method of updating an image displayed on a display device, the method comprising:
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receiving image data;
setting an indicator to a first state that indicates that said image data has been received subsequent to a previous update of a display device; and
periodically updating at least a portion of said display device to display the image, wherein said updating is deferred for at least one period when said indicator is in a state other than said first state. - View Dependent Claims (2, 3)
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4. A device for driving a bistable display device, the device comprising:
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a frame buffer configured to receive data indicative of an image;
an output circuit configured to generate a signal for updating a display device to display said image;
a memory operably connected to the frame buffer and configured to indicate whether said frame buffer has received data subsequent to updating of said display; and
a controller configured to control, based on a content of said memory, when said output circuit generates said signal. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electronic device, the device comprising:
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a display device;
a frame buffer configured to receive image data;
a driver circuit configured to periodically generate a signal for updating said display device to display said image data;
a memory operably connected to the frame buffer and configured to indicate whether said frame buffer has received data subsequent to updating of said display;
wherein said circuit is configured to generate said signal only when said memory indicates whether said frame buffer has received data subsequent to updating of said display. - View Dependent Claims (20, 21, 22, 23)
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24. A device for driving a bistable display device, the device comprising:
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means for receiving and storing data indicative of an image;
means for generating a signal for updating a display device to display said image;
means for indicating whether said means for receiving and storing has received data subsequent to updating of said display; and
means for controlling, based on a content of said memory, when said means for generating generates said signal. - View Dependent Claims (25, 26, 27)
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28. A device for asynchronously driving a bistable display device, the device comprising:
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a circuit configured to asynchronously receive a line of data indicative of a portion of an image; and
an output circuit configured to update a display device to display the portion of the image, wherein the circuit is configured to provide the line of data to the output circuit upon receiving the line of data. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A device for asynchronously driving a bistable display device, the device comprising:
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means for asynchronously receiving a line of data indicative of a portion of an image; and
means for generating a signal to update a display device to display said portion of the image, wherein the means for asynchronously receiving comprises means for providing said line of data to the means for generating upon receiving the line of data. - View Dependent Claims (38, 39)
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Specification