Redundant row decoder
AssigneeAurora Systems, Inc.
InventorPoking Li
Life of this patent
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Abstract
An improved video display driver circuit (300) having an improved pixel array (302). The pixel array has a plurality of row enable lines (138) which extend from both sides thereof such that the row enable lines (138) are connected at one end to a row decoder (104) and at the other end to a redundant row decoder (304). Upon the occurrence of a circuit discontinuity (450), there will still be a complete circuit from either the row decoder (104) or the redundant row decoder (304) to each of a plurality of pixel cells (200) such that a video image produced by the improved pixel array (302) will not be impaired by the circuit discontinuity (450).
Claims12
A video array driver circuit for providing signals to a video pixel array, comprising:
- a first row enable driver for selectively providing signals to each of a plurality of row enable lines in the video pixel array;
- and
- a second row enable driver for selectively providing signals to said plurality of row enable lines in the video pixel array.
A method for improving production yield in a video pixel array, comprising:
- a) providing two connection points to each of a plurality of row enable lines;
- b) connecting a first row decoder to each of a first of said two connection points;
- and
- c) connecting a second row decoder to each of a second of said two connection points.
A video pixel array device, comprising:
- a plurality of pixel cells arranged in rows and columns with each row of said pixel cells connected to a row enable line;
- a first row driver connection point on each of the row enable lines;
- a second row driver connection point on each of the row enable lines;
- a first row decoder for providing signal to each of the row enable lines via said first row driver connection point;
- and
- a second row decoder for providing signal to each of the row enable lines via said second row driver connection point.
Dependencies are inferred from the claim text.