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US 8,274,206 B2Granted
Interdigitated multiple pixel arrays of light-emitting devices
AssigneeThe Regents of the University of California
InventorsArpan Chakraborty, Likun Shen, Umesh K. Mishra
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Abstract
The present invention discloses a plurality of interdigitated pixels arranged in an array, having a very low series-resistances with improved current spreading and improved heat-sinking. Each pixel is a square with sides of dimension l. The series resistance is minimized by increasing the perimeter of an active region for the pixels. The series resistance is also minimized by shrinking the space between a mesa and n-contact for each pixel.
Claims23
A light-emitting device, comprising:
- at least one pixel, wherein the pixel is a light emitting diode;
- and
- a p-bus and an n-bus for providing current to the pixel, wherein the p-bus, the n-bus, or both the p-bus and the n-bus has an interdigitated geometry for providing the current to the pixel.
A method of fabricating light-emitting device, comprising:
- fabricating at least one pixel, wherein the pixel is a light emitting diode;
- and
- fabricating a p-bus and an n-bus for providing current to the pixel, wherein the p-bus, the n-bus, or both the p-bus and the n-bus has an interdigitated geometry for providing the current to the pixel.
Dependencies are inferred from the claim text.