System and method of updating drive scheme voltages
First Claim
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1. A method of calibrating drive scheme voltages in an array including a plurality of display elements, the method comprising:
- determining, for a first subset of the display elements of the array, a first voltage characterizing a voltage which causes essentially all the display elements in the first subset to actuate from a released state;
determining, for a second subset of the display elements of the array, a second voltage characterizing a voltage which causes a first display element in the second subset to actuate from a released state but which does not cause a significant number of other display elements in the second subset to actuate from a released state;
determining, for a third subset of the display elements of the array, a third voltage characterizing a voltage which causes a first display element in the third subset to release from an actuated state but which does not cause a significant number of other display elements in the third subset to release from an actuated state; and
using the first, second, and third voltages to perform maintenance calibrations during use of the array over at least some portion of the life of the array.
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Abstract
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array.
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Citations
42 Claims
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1. A method of calibrating drive scheme voltages in an array including a plurality of display elements, the method comprising:
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determining, for a first subset of the display elements of the array, a first voltage characterizing a voltage which causes essentially all the display elements in the first subset to actuate from a released state; determining, for a second subset of the display elements of the array, a second voltage characterizing a voltage which causes a first display element in the second subset to actuate from a released state but which does not cause a significant number of other display elements in the second subset to actuate from a released state; determining, for a third subset of the display elements of the array, a third voltage characterizing a voltage which causes a first display element in the third subset to release from an actuated state but which does not cause a significant number of other display elements in the third subset to release from an actuated state; and using the first, second, and third voltages to perform maintenance calibrations during use of the array over at least some portion of the life of the array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of calibrating drive scheme voltages in an array including a plurality of display elements, the method comprising:
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determining one or more drive response characteristics of one or more previously characterized subsets of display elements of the array; deriving drive scheme voltages using the determined drive response characteristics determined for the one or more previously characterized subsets of display elements; determining one or more drive response characteristics of an additional different subset of display elements of the array to characterize the additional different subset of display elements of the array; and substituting the additional different subset of display elements of the array for one of the one or more previously characterized subsets of display elements of the array. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An apparatus for calibrating drive scheme voltages, the apparatus comprising:
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an array of display elements; display element state sensing circuitry; and driver and processor circuitry configured to; determine, for a first subset of the display elements of the array, a first voltage characterizing a voltage which causes essentially all the display elements in the first subset to actuate from a released state; determine, for a second subset of the display elements of the array, a second voltage characterizing a voltage which causes a first display element in the second subset to actuate from a released state but which does not cause a significant number of other display elements in the second subset to actuate from a released state; determine, for a third subset of the display elements of the array, a third voltage characterizing a voltage which causes a first display element in the third subset to release from an actuated state but which does not cause a significant number of other display elements in the third subset to release from an actuated state; and use the first, second, and third voltages to perform maintenance calibrations during use of the array. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An apparatus for calibrating drive scheme voltages, the apparatus comprising:
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an array of display elements; display element state sensing circuitry; and driver and processor circuitry capable of; determining one or more drive response characteristics of one or more previously characterized subsets of display elements of the array; deriving drive scheme voltages using the determined drive response characteristics determined for the one or more previously characterized subsets of display elements; and determining one or more drive response characteristics of an additional different subset of display elements of the array to characterize the additional different subset of display elements of the array, and substituting the additional different subset of display elements of the array for one of the one or more previously characterized subsets of display elements of the array. - View Dependent Claims (31, 32, 33, 34, 35)
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36. A non-transitory tangible computer readable media having stored thereon instructions causing a driver circuit to perform a method of:
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determining, for a first subset of the display elements of the array, a first voltage characterizing a voltage which causes essentially all the display elements in the first subset to actuate from a released state; determining, for a second subset of the display elements of the array, a second voltage characterizing a voltage which causes a first display element in the second subset to actuate from a released state but which does not cause a significant number of other display elements in the second subset to actuate from a released state; determining, for a third subset of the display elements of the array, a third voltage characterizing a voltage which causes a first display element in the third subset to release from an actuated state but which does not cause a significant number of other display elements in the third subset to release from an actuated state; and using the first, second, and third voltages to perform maintenance calibrations during use of the array. - View Dependent Claims (37, 38, 39, 40)
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41. A non-transitory tangible computer readable media having stored thereon instructions causing a driver circuit to perform a method of:
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determining one or more drive response characteristics of one or more previously characterized subsets of display elements of the array; deriving drive scheme voltages using the determined drive response characteristics determined for the one or more previously characterized subsets of display elements; determining one or more drive response characteristics of an additional different subset of display elements of the array to characterize the additional different subset of display elements of the array, and substituting the additional different subset of display elements of the array for one of the one or more previously characterized subsets of display elements of the array. - View Dependent Claims (42)
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Specification