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:
Feb. 06, 2018
Filed:
Oct. 31, 2016
Citizen Watch Co., Ltd., Tokyo, JP;
Citizen Electronics Co., Ltd., Yamanashi, JP;
Takashi Akiyama, Saitama, JP;
Shigehisa Watanabe, Yamanashi, JP;
Hidekazu Arai, Yamanashi, JP;
Yuki Ochiai, Yamanashi, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
CITIZEN ELECTRONICS CO., LTD., Yamanashi, JP;
Abstract
The purpose of the present invention is to reduce the size and thickness of an LED module. The LED module includes a circuit substrate, at least two supply terminals, a plurality of LED dies, a plurality of FET die, a constant current circuit, a dam member, a fluorescent resin, a resistor network, and a bypass circuit, wherein the constant current circuit includes one of the plurality of FET die and the bypass circuit includes other of the plurality of FET die, a portion of the dam enclosing the LED block region forms a portion of the dam enclosing the circuit block region, and the dam member enclosing the LED block region has a annular shape and the dam member enclosing the circuit block region has a rectangular shape except for said portion of the dam member.