Interconnection tab used with optical devices

• US 7,936,496 B2
• Filed: 09/10/2007
• Issued: 05/03/2011
• Est. Priority Date: 09/11/2006
• Status: Active Grant

• Current Assignee: Alphamicron Incorporated
• Original Assignee: Alphamicron Incorporated
• Inventors: Taheri, Bahman, Park, Eui-Yeul, Martincic, Christine, Kosa, Tamas, Miller, Roy
• Primary Examiner(s): Stultz; Jessica T
• Application Number:
  US12/438,849
• Publication Number:
  US 20090201461A1
• Time in Patent Office: 1,331 Days
• Field of Search: 351/159, 359/245
• US Class Current: 359/245
• CPC Class Codes: G02C 7/101 having an electro-optical light valve electro-optical elements per se G02F
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels

Abstract

An optical device with at least one interconnection tab is provided. The optical device includes a pair of opposed substrates with a gap therebetween filled with an electro-optic material. Each substrate has a facing surface with a substrate electrode disposed thereon. A sealing material is disposed between the pair of opposed substrates to contain the electro-optic material. At least one interconnection tab is interposed between the substrates. The interconnection tab includes an insulator layer with opposed surfaces. A tab electrode layer is provided on each surface, wherein each tab electrode layer contacts a corresponding substrate electrode. And each tab electrode layer includes a portion that extends from the pair of opposed substrates on selected portions of the insulator layer.

Claims

1. An optical device having at least one interconnection tab, comprising:

a pair of opposed substrates having a gap therebetween filled with an electro-optic material, each said substrate having a facing surface with a substrate electrode disposed thereon;

a sealing material disposed between said pair of opposed substrates to contain said electro-optic material; and

at least one interconnection tab interposed between said substrates, said interconnection tab comprising;

an insulator layer having opposed surfaces, each insulator surface comprising

a tab electrode in electrical connection with the substrate electrode facing said tab electrode, and a pad electrode in electrical connection with the substrate electrode facing the opposed surface of the insulator layer.

2. The optical device according to claim 1, wherein said insulator layer, each said tab electrode, and each said pad electrode has at least one conductive via extending therethrough so that each said pad electrode is in electrical connection to the tab electrode on the opposed surface of the insulator layer.

3. The optical device according to claim 1, further comprising:

a conductive adhesive disposed on at least a portion of each said tab electrode.

4. The optical device according to claim 1, wherein said insulator layer has a lens edge received between said pair of opposed substrates opposite a terminal edge extending from said substrates.

5. The optical device according to claim 1, wherein at least one said tab electrode is L-shaped.

6. The optical device according to claim 1, wherein each said pad electrode is spaced apart from said tab electrode on each said surface of the insulator layer.

7. The optical device according to claim 1, wherein said interconnection tab has a thickness that is greater than the gap between said pair of opposed substrates.

8. The optical device according to claim 1, wherein said interconnection tab is flexible.

9. The optical device according to claim 1, wherein said interconnection tab is removably insertable between said pair of opposed substrates.

10. An optical device, comprising:

a first and second flexible substrate having a gap therebetween filled with an electro-optic material and a sealing material disposed therebetween to contain said electro-optic material, said first substrate having a first substrate electrode and said second substrate having a second substrate electrode;

an interconnection tab interposed between said first and second substrates, said interconnection tab comprising;

an insulator layer having a top surface opposite a bottom surface;

wherein disposed on said top surface is a first tab electrode and a first pad electrode; and

wherein disposed on said bottom surface is a second tab electrode and a second pad electrode;

wherein the first tab electrode and the second pad electrode are in electrical connection with the first substrate electrode, and wherein the second tab electrode and the first pad electrode are in electrical connection with the second substrate electrode.

11. The optical device of claim 10, wherein the first tab electrode and the first pad electrode on the top surface are spaced apart from each other, and wherein the second tab electrode and the second pad electrode on the bottom surface are spaced apart from each other.