Method and device for reducing effect of polarity inversion in driving display
First Claim
1. A method of displaying an image on a display, the display including display elements arranged in an array having a first direction and a second direction that intersects the first direction, the method comprising:
- writing image data to the array of display elements; and
maintaining a current position of each display element of the array of display elements, wherein maintaining a current position includes alternating the polarity of a first voltage signal along the first direction in a first pattern having a first frequency spectrum, and alternating the polarity of a second voltage signal along the second direction in a second pattern having a second frequency spectrum, wherein at least one of the first and second frequency spectrums includes a plurality of frequency components, and wherein the first frequency spectrum corresponds to a pattern of polarities of voltage signals applied to rows of display elements, and wherein the second frequency spectrum corresponds to a pattern of polarities of voltage signals applied to columns of display elements.
2 Assignments
0 Petitions
Accused Products
Abstract
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a bias voltage pattern. The bias voltage pattern includes alternating polarities along one dimension in a pattern having a first frequency spectrum, and alternating polarities along a second dimension in a pattern having a second frequency spectrum that is different than the first frequency spectrum. At least one of the first and second frequency spectrums may include a plurality of frequency components.
-
Citations
28 Claims
-
1. A method of displaying an image on a display, the display including display elements arranged in an array having a first direction and a second direction that intersects the first direction, the method comprising:
-
writing image data to the array of display elements; and maintaining a current position of each display element of the array of display elements, wherein maintaining a current position includes alternating the polarity of a first voltage signal along the first direction in a first pattern having a first frequency spectrum, and alternating the polarity of a second voltage signal along the second direction in a second pattern having a second frequency spectrum, wherein at least one of the first and second frequency spectrums includes a plurality of frequency components, and wherein the first frequency spectrum corresponds to a pattern of polarities of voltage signals applied to rows of display elements, and wherein the second frequency spectrum corresponds to a pattern of polarities of voltage signals applied to columns of display elements. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An apparatus for driving a display, the display including display elements arranged in an array having a first direction and a second direction that intersects the first direction, the apparatus comprising:
-
a first driver configured to drive the array of display elements, the first driver including a plurality of first driving signal lines connected to the array of display elements along the first direction; and a second driver to drive the array of display elements, the second driver including a plurality of second driving signal lines connected to the array of display elements along the second direction, wherein the first driver is configured to maintain a current position of each display element of the array of display elements by alternating a polarity of the plurality of first driving signal lines in a first pattern having a first frequency spectrum, wherein the second driver is configured to alternate the polarity of the plurality of second driver signal lines in a second pattern having a second frequency spectrum, and wherein at least one of the first and second frequency spectrums includes a plurality of frequency components, and wherein the first frequency spectrum corresponds to alternating polarities of voltage signals along a row of display elements, and wherein the second frequency spectrum corresponds to alternating polarities of voltage signals along a column of display elements. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An apparatus for displaying an image on a display, the display including display elements arranged in an array having a first direction and a second direction that intersects the first direction, the apparatus comprising:
-
means for writing image data to the array of display elements; means for maintaining a current position of each display element of the array of display elements, wherein the means for maintaining a current position includes means for alternating the polarity of a first voltage signal along the first direction in a first pattern having a first frequency spectrum, and means for alternating the polarity of a second voltage signal along the second direction in a second pattern having a second frequency spectrum, wherein at least one of the first and second frequency spectrums includes a plurality of frequency components, and wherein the first frequency spectrum corresponds to a pattern of polarities of voltage signals along rows of display elements, and wherein the second frequency spectrum corresponds to a pattern of polarities of voltage signals along columns of display elements. - View Dependent Claims (19, 20, 21, 22, 23)
-
-
24. A computer program product for processing data for a program configured to drive a display including a plurality display elements arranged in an array having a first direction and a second direction that intersects the first direction, the computer program product comprising:
-
a non-transitory computer-readable medium having stored thereon code for causing processing circuitry to; write image data to the array of display elements; and maintain a current position of each display element of the array of display elements, wherein maintaining a current position includes alternating the polarity of a first voltage signal along the first direction in a first pattern having a first frequency spectrum, and alternating the polarity of a second voltage signal along the second direction in a second pattern having a second frequency spectrum, wherein at least one of the first and second frequency spectrums includes a plurality of frequency components, wherein the first frequency spectrum corresponds to a pattern of polarities of voltage signals along rows of display elements, and wherein the second frequency spectrum corresponds to a pattern of polarities of voltage signals along columns of display elements. - View Dependent Claims (25, 26, 27, 28)
-
Specification