Backplanes for display applications, and components for use therein
AssigneeE Ink Corporation
InventorsKarl R. Amundson, Yu Chen, Kevin L. Denis, Paul S. Drzaic, Peter T. Kazlas, Andrew P. Ritenour
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Abstract
A display pixel unit provides reduced capacitative coupling between a pixel electrode and a source line. The unit includes a transistor, the pixel electrode, and the source line. The source line includes an extension that provides a source for the transistor. A patterned conductive portion is disposed adjacent to the source line.
Claims20
A backplane for an electro-optic display, the backplane comprising a source line, a transistor and a pixel electrode connected to the source line via the transistor, the pixel electrode extending over part of the source line to form an overlap area, the backplane further comprising a conductive portion disposed between the source line and the pixel electrode, said conductive portion reducing the source line/pixel electrode capacitance.
An electro-optic display comprising a backplane comprising a source line, a transistor and a pixel electrode connected to the source line via the transistor, the pixel electrode extending over part of the source line to form an overlap area, the backplane further comprising a conductive portion disposed between the source line and the pixel electrode, said conductive portion reducing the source line/pixel electrode capacitance, wherein the electro-optic medium is a rotating bichromal member or electrochromic medium.
An electro-optic display comprising a backplane comprising a source line, a transistor and a pixel electrode connected to the source line via the transistor, the pixel electrode extending over part of the source line to form an overlap area, the backplane further comprising a conductive portion disposed between the source line and the pixel electrode, said conductive portion reducing the source line/pixel electrode capacitance, wherein the electro-optic medium is an electrophoretic medium.
A backplane for an electro-optic display, the display comprising a plurality of pixels arranged in a two-dimensional array of rows and columns such that any specific pixel is uniquely defined by the intersection of one specified row and one specified column, each pixel of the display having a pixel electrode and an associated transistor, the pixel electrode being connected to the drain electrode of the associated transistor, the display further comprising a plurality of source electrodes and a plurality of row electrodes, such that the source electrodes of all the transistors in one column of the array are connected to a single column electrode, and the gate electrodes of all the transistors in one row of the array are connected to a single row electrode, at least one of the pixel electrode extending over part of one source line to form an overlap area, the backplane further comprising a conductive portion disposed between the source line and the pixel electrode in the overlap area, said conductive portion reducing the source line/pixel electrode capacitance.
Dependencies are inferred from the claim text.