Passive circuits for de-multiplexing display inputs
First Claim
Patent Images
1. A display device comprising:
- an array of microelectromechanical system (MEMS) display elements; and
a plurality of passive impedance network circuits coupled to said array and configured to provide row output voltages to drive said array, each passive impedance network comprising an output to a row of display elements and three or more inputs,wherein for each passive impedance network the output is controlled by the three or more inputs, and wherein each input is at one of two pre-determined voltages.
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Abstract
A display array which can reduce the row connections between the display and the driver circuit and methods of manufacturing and operating the same are disclosed. In one embodiment, a display device comprises an array of microelectromechanical system (MEMS) display elements and a plurality of passive impedance network circuits coupled to said array and configured to provide row output voltages to drive said array. Each passive impedance network comprises an output to a row of display elements and three or more inputs. No more than one input is shared by two passive impedance networks.
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Citations
22 Claims
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1. A display device comprising:
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an array of microelectromechanical system (MEMS) display elements; and a plurality of passive impedance network circuits coupled to said array and configured to provide row output voltages to drive said array, each passive impedance network comprising an output to a row of display elements and three or more inputs, wherein for each passive impedance network the output is controlled by the three or more inputs, and wherein each input is at one of two pre-determined voltages. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device comprising:
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an array of microelectromechanical system (MEMS) display elements; and a plurality of passive impedance network circuits coupled to said array and configured to provide row output voltages to drive said array, each passive impedance network comprising an output to a row of display elements and three or more inputs, wherein each passive impedance network circuit shares no more than one input with any other passive impedance network circuit. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A display device comprising:
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means for displaying image data; and means for demultiplexing one or more row driving voltages and providing demultiplexed voltages to said displaying means. - View Dependent Claims (16)
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17. A method of making a display device, the method comprising:
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forming an array of microelectromechanical system (MEMS) display elements on a substrate; and forming a plurality of passive impedance network circuits coupled to said array and configured to provide row output voltages to drive said array, each passive impedance network comprising an output to a row of display elements and three or more inputs, wherein for each passive impedance network the output is controlled by the three or more inputs, and wherein each input is at one of two pre-determined voltages. - View Dependent Claims (18)
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19. A method of making a display device, the method comprising:
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forming an array of microelectromechanical system (MEMS) display elements on a substrate; and forming a plurality of passive impedance network circuits coupled to said array and configured to provide row output voltages to drive said array, each passive impedance network comprising an output to a row of display elements and three or more inputs, wherein the plurality of passive impedance network circuits are connected to each other in a manner such that each passive impedance network circuit shares no more than one input with any other passive impedance network circuit.
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20. A method of demultiplexing a row driving voltage in a row by row addressing scheme of a display device, said method comprising:
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applying a first control voltage to a first set of output nodes including a selected output node through a first set of series impedances; applying a second control voltage to a second set of output nodes through a second set of series impedances, said second set including said selected output node and not including any other output nodes of said first set; and applying a third control voltage to a third set of output nodes through a third set of series impedances, said third set including said selected output node and not including any other output nodes of said first set or said second set. - View Dependent Claims (21, 22)
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Specification