LIGHT OUTPUT DEVICE

• US 20100096647A1
• Filed: 03/31/2008
• Published: 04/22/2010
• Est. Priority Date: 04/03/2007
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Van Herpen, Maarten Marinus Johannes Wilhelmus, Liedenbaum, Coen Theodorus Hubertus Fransiscus
• Application Number:
  US12/593,311
• Publication Number:
  US 20100096647A1
• Time in Patent Office: Days
• US Class Current: 257/91
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10541 comprising a light source or a light guide
• CPC Class Codes: B32B 17/10706 being photo-polymerized
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: F21V 33/006 General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/12 characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

A light output device comprises a substrate arrangement comprising first and second light transmissive substrates (1,2) and an electrode arrangement (3a,3b) sandwiched between the substrates. A plurality of light source devices (4) are integrated into the structure of the substrate arrangement and connected to the electrode arrangement. The electrode arrangement comprises an at least semi-transparent conductor arrangement of spaced non-transparent wires, the wires comprising a conductive ink.

Claims

1. A light output device comprising:

a substrate arrangement comprising;

first and second light transmissive substrates (1,2) and an electrode arrangement (3a,3b) disposed therebetween on a surface of one of the substrates; and

a plurality of light source devices (4) integrated into the structure of the substrate arrangement and connected to the electrode arrangement,

wherein the electrode arrangement comprises an at least semi-transparent conductor arrangement of spaced non-transparent wires, the wires comprising a conductive ink.

3. A light output device as claimed in claim 1, wherein the conductor arrangement comprises an ink containing conducting particles.

4. A light output device as claimed in claim 1, wherein the ink comprises silver particles in a thermoplastic binder.

5. A light output device as claimed in claim 1, wherein the ink has a sheet resistance of less than or equal to 0.1 Ohm per square at 0.025 mm thickness.

6. A light output device as claimed in claim 1, wherein the ink has a sheet resistance of less than or equal to 0.075 Ohm per square at 0.025 mm thickness.

7. A light output device as claimed in claim 1, wherein the light source devices are spaced apart by at least 15 mm.

9. A light source device as claimed in claim 1, wherein the electrode arrangement comprises a plurality of wires of width more than 75 μ

m and less than 1000 μ

m.

10. A light source device as claimed in claim 1, wherein the electrode arrangement comprises a plurality of wires of width more than 150 μ

m and less than 600 μ

m.

14. A light output device as claimed in claim 1, wherein the light source device (4) comprises an LED device or a group of LED devices.

15. A light output device as claimed in claim 14, wherein each light source device (4) comprises a group of three coloured LEDs, and the electrode pattern comprises individual supply electrode lines (3a,3c,3d) leading to each LED

16. A light output device as claimed in claim 1, further comprising a second electrode arrangement having substantially fully transparent electrodes (7) which connect to the electrode arrangement (3).

2. (canceled)

8. (canceled)

11-13. -13. (canceled)

17-19. -19. (canceled)

20. A method of manufacturing a light output device, comprising:

printing an electrode arrangement (3a,3b) onto a surface of a first light transmissive glass substrate (1) of a substrate arrangement, using a conductive ink, to define a semi-transparent conductor arrangement of non-transparent wires;

providing a plurality of light source devices (4) connected to the electrode arrangement; and

providing a second light transmissive glass substrate (2), and disposing the electrode arrangement between the substrates, thereby integrating the light source devices within the structure of the substrate arrangement.

21. A method as claimed in claim 20, further comprising binding the two substrates together using a thermoplastic layer or resin.

22. A method as claimed in claim 21, wherein the thermoplastic layer or resin comprises polyvinyl butyral or a UV resin.

23. A method as claimed in claim 22, wherein the thickness of the thermoplastic layer or resin ranges from about 0.3 mm to about 2 mm.

24. A method as claimed in claim 20, wherein the ink comprises silver particles in a thermoplastic binder.

25. A method as claimed in claim 20, wherein the printing comprises silk screen printing, inkjet printing, and/or offset printing

26. (canceled)