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 8269408 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 18, 2012

Filed:

Aug. 12, 2008
Applicants:

Ming-hung Chen, Zhudong Town, TW;

Shih-yi Wen, Zhudong Town, TW;

Jing-yi Chen, Zhudong Town, TW;

Inventors:

Ming-Hung Chen, Zhudong Town, TW;

Shih-Yi Wen, Zhudong Town, TW;

Jing-Yi Chen, Zhudong Town, TW;

Assignee:

Helio Optoelectronics Corporation, Zhudong Town, Hsinchu County, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/62 (2010.01); H01L 33/36 (2010.01); H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract

An LED base structure with an embedded capacitor includes a body, at least one pair of metal layers, at least one dielectric layer, and at least two conductive channels. The body is an insulating base. The metal layers are disposed in the body, and the dielectric layer is disposed between the metal layers, so as to form an embedded capacitor. The conductive channels are electrically connected to the metal layers, respectively. The LED base structure is further electrically connected to a resistor for forming a resistor-capacitor delay circuit whereby a phase delay is effectuated whenever AC power is supplied to the LED base structure, so as to control the time for switching on one of two parallel-connected LEDs and, as a result, prevent the LEDs from flashing which might otherwise arise when the LEDs are supplied with AC power.


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