Systems and methods of actuating MEMS display elements
First Claim
Patent Images
1. A method of writing a plurality of rows of image data to a display array, said display array comprising pixels that exhibit two different states, a first state and a second state, said method comprising:
- for a first number of said rows, placing substantially all pixels in at least one of the first number of said rows in said first state that comprises a non-black state prior to writing any image data to the at least one of the first number of said rows; and
for a second number of said rows, placing substantially all pixels in at least one of the second number of said rows in said second state that comprises a black state prior to writing any image data to the at least one of the second number of said rows.
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Abstract
Methods of writing display data to MEMS display elements are configured to minimize charge buildup and differential aging. Prior to writing rows of image data, a pre-write operation is performed. The pre-write operation with either actuate or release substantially all pixels in a row prior to writing the image data. In some embodiments, the selection between actuating or releasing is performed in a random or pseudo-random manner.
328 Citations
20 Claims
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1. A method of writing a plurality of rows of image data to a display array, said display array comprising pixels that exhibit two different states, a first state and a second state, said method comprising:
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for a first number of said rows, placing substantially all pixels in at least one of the first number of said rows in said first state that comprises a non-black state prior to writing any image data to the at least one of the first number of said rows; and for a second number of said rows, placing substantially all pixels in at least one of the second number of said rows in said second state that comprises a black state prior to writing any image data to the at least one of the second number of said rows. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display apparatus comprising:
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a display array comprising display elements that exhibit two different states; and a driver circuit configured to write rows of image data to at least one row of said display array;
wherein said driver circuit is further configured to select at least one of two pre-write operations to be performed each time prior to writing any row of image data to said row of the display array,wherein a first of said pre-write operations places substantially all display elements in said row of the display array into a first state comprising a non-black state, and wherein a second of said pre-write operations places substantially all display elements in said row of the display array into a second state comprising a black state. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A display apparatus comprising:
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means for displaying image data on an array of pixels; means for writing rows of image data to at least one row of said displaying means; and means for selecting at least one of two pre-write operations to be performed each time prior to writing any row of image data to said row of said displaying means, wherein a first of said pre-write operations places substantially all display elements in said row of said displaying means into a first state that comprises a non-black state, and wherein a second of said pre-write operations places substantially all display elements in said row of said displaying means into a second state that comprises a black state. - View Dependent Claims (19, 20)
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Specification