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.:
Date of Patent:
Oct. 21, 2003
Filed:
May. 24, 2002
Ming-Te Lin, Taipei Hsien, TW;
Para Light Electronics Co., Ltd., Taipei, TW;
Abstract
A light emitting diode (LED) device includes a substrate having a major surface on which a number of LED chips are formed and arranged in a two-dimensional array. The LED chips have a p-type semiconductor and an n-type semiconductor. The n-type semiconductor of each LED chip is electrically connected to the p-type semiconductor of the adjacent LED chip, whereby the LED chips are connected in series. The p-type semiconductor of the starting LED chip and the n-type semiconductor of the ending LED chip are connected to conductors for electrical connection with an external power source. The arrangement of serially connected LED chips allows enhancement of the brightness of a single LED device when the size of the LED device is increased. The working voltage is also increased and the working current can be kept low. Interfacing equipment between the LED device and external power source can be simplified.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile