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US 5,563,470 AGranted
Tiled panel display assembly
AssigneeCornell Research Foundation, Inc.
InventorChe-Yu Li
Life of this patent
Estimating the term…
Abstract
A panel display includes a common substrate on which a plurality of small display tiles are mounted in an array and electrically interconnected to replicate a large area panel. Each tile includes a plurality of contact pads which are aligned with corresponding contact pads on the substrate. Solder joints between corresponding contact pads mechanically align and secure the tiles on the substrate, and provide electrical connections therebetween. Selected substrate contact pads are electrically interconnected to provide electrical connections between adjacent tiles.
Claims30
A panel display, comprising:
- a base having a relatively large top surface area;
- a plurality of display tiles, each display tile having a top surface and a bottom surface, the top surface of each tile being relatively small with respect to said base top surface area, said plurality of tiles having a total top surface area substantially equal to said base top surface area;
- a second array of locator contacts on the bottom surface of each display tile, said contacts being precisely positioned for accurately locating each display tile on said base;
- a first array of locator contacts on the top surface of said base, said first array of contacts being precisely positioned for receiving and accurately locating said display tile on said base;
- and
- connector joints for mechanically interconnecting said second array of tile locator contacts with corresponding locator contacts of said first array, said joints being selected to provide a predetermined, uniform vertical spacing between each said tile and said base and to mechanically secure said tiles on said base, with selected joints providing electrical connections between selected contacts on said display tiles and said substrate to thereby electrically interconnect said tiles.
3 more elements
A high yield large area display panel comprising:
- a base having a top surface with a relatively large top surface area;
- a plurality of small area display tiles, each selected for its display characteristics and each having a top surface and a bottom surface, the top surface of each tile being smaller in area than said base top surface;
- an array of base locator contacts on said top surface of said base, said base locator contacts being positioned for receiving and accurately locating said display tiles on said base;
- an array of tile locator contacts on the bottom surface of each of said display tiles, said tile locator contacts being precisely positioned for alignment with corresponding base locator contacts for accurately locating each display tile on said base;
- and
- connector joints for interconnecting said base locator contacts with corresponding said tile locator contacts to bond said plurality of tiles on said base, said connector joints being reflowable to passively align said tile locator contacts with said base locator contacts during reflow.
3 more elements
A high yield large area display panel comprising:
- a base having a top surface with a relatively large top surface area;
- a plurality of small area liquid crystal display tiles, each selected for its display characteristics and each having a top surface and a bottom surface, the top surface of each tile being smaller in area than said base top surface;
- an array of base locator contacts on said top surface of said base, said base locator contacts being positioned for receiving and accurately locating said display tiles on said base;
- an array of tile locator contacts on the bottom surface of each of said display tiles, said tile locator contacts being precisely positioned for alignment with corresponding base locator contacts for accurately locating each display tile on said base;
- connector joints for interconnecting said base locator contacts with corresponding tile locator contacts to bond said plurality of tiles on said base, said connector joints being reflowed to passively align said tile locator contacts with said base locator contacts during reflow.
2 more elements
Dependencies are inferred from the claim text.