The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7535524 B1

PDF
Full Text
Expired
Date of Patent:
May. 19, 2009

Filed:

May. 27, 2005
Applicants:

Janet Bee Yin Chua, Loveland, CO (US);

Yue Hoong Lau, Loveland, CO (US);

Tah Wee Tee, Loveland, CO (US);

Rene P. Helbing, Palo Alto, CA (US);

Inventors:

Janet Bee Yin Chua, Loveland, CO (US);

Yue Hoong Lau, Loveland, CO (US);

Tah Wee Tee, Loveland, CO (US);

Rene P. Helbing, Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment, apparatus is provided with a display panel, a wavelength converting material, and a light source. The display panel is provided with an interface to receive control signals defining one or more primary images that are projected from the display panel. The wavelength converting material absorbs light of a first wavelength and emits light of a second wavelength. The wavelength converting material defines a secondary image that is projected from the display panel when the wavelength converting material is illuminated by the light of the first wavelength. The light source causes the wavelength converting material to be illuminated by the light of the first wavelength.


Find Patent Forward Citations

Chua, Janet Bee Yin. (2009). Display panel with wavelength converting material and control interface to switchably control independent projection or non-projection of primary and secondary images (U.S. Patent No. 7535524). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7535524

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