Light source with hybrid coating, device including light source with hybrid coating, and/or methods of making the same

• US 9,433,974 B2
• Filed: 12/19/2012
• Issued: 09/06/2016
• Est. Priority Date: 10/08/2010
• Status: Expired due to Fees

• Current Assignee: Guardian Glass LLC (KOCH Industries Incorporated)
• Original Assignee: Gaurdian Industries Corporation
• Inventors: Veerasamy, Vijayen S., Alvarez, Jemssy
• Primary Examiner(s): Armand, Marc
• Assistant Examiner(s): Baptiste, Wilner Jean
• Application Number:
  US13/719,530
• Publication Number:
  US 20130129919A1
• Time in Patent Office: 1,357 Days
• Field of Search: 438/27, 438/29, 438/22, 438/46, 438/47, 438/57, 438/82
• US Class Current: 1/1
• CPC Class Codes: B05D 5/06 to obtain multicolour or other optical effects B05D5/02 takes precedence
• CPC Class Codes: B05D 5/061 Special surface effect
• CPC Class Codes: C08G 83/001 Macromolecular compounds containing organic and inorganic sequences, e.g. organic polymers grafted onto silica
• CPC Class Codes: C09D 7/00 Features of coating compositions, not provided for in group C09D5/00 driers C09F9/00; Processes for incorporating ingredients in coating compositions
• CPC Class Codes: H01L 2933/005 relating to encapsulations
• CPC Class Codes: H05B 33/10 Apparatus or processes specially adapted to the manufacture of electroluminescent light sources

Abstract

Certain example embodiments of this invention relate to techniques for improving the performance of Lambertian and non-Lambertian light sources. In certain example embodiments, this is accomplished by (1) providing an organic-inorganic hybrid material on LEDs (which in certain example embodiments may be a high index of refraction material), (2) enhancing the light scattering ability of the LEDs (e.g., by fractal embossing, patterning, or the like, and/or by providing randomly dispersed elements thereon), and/or (3) improving performance through advanced cooling techniques. In certain example instances, performance enhancements may include, for example, better color production (e.g., in terms of a high CRI), better light production (e.g., in terms of lumens and non-Lambertian lighting), higher internal and/or external efficiency, etc.

Claims

1. A method of making a coated article including a substrate supporting a coating, the method comprising:

providing a precursor comprising titanium alkoxide;

providing a chelate;

reacting the precursor comprising titanium with the chelate to form a chelated titanium-inclusive substance, comprising reacting to convert tetra-coordinate Ti species in titanium alkoxide into a less reactive hexa-coordinate species to create chelated poly(dibutyl titanate);

cross-linking the chelated titanium-inclusive substance with an organic resin material to form a hybrid solution; and

disposing the hybrid solution on the substrate in forming the coating,

drying the hybrid solution at a temperature of less than 250 degrees C.,

curing the hybrid solution at a temperature of at least 300 degrees C.,

thereby allowing the coating to have an index of refraction of at least about 1.8 and be substantially transparent.

2. The method of claim 1, wherein said disposing comprises slot die coating the hybrid solution.

3. The method of claim 1, wherein the chelate comprises salicylic acid.

4. The method of claim 1, wherein the organic resin material comprises a hydroxy inclusive organic resin.