US 20040258449A1
(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2004/0258449 Al
Lin et al. (43) Pub. Date: Dec. 23,2004
(54) LIGHT MODULE AND KEYBOARD UTILIZING SAME
(75) Inventors: Chih-Nan Lin, Yunlin (TW);
Huang-Chang Hsu, Taoyuan (TW);
Chien-Shih Hsu, Taipei (TW)
Correspondence Address:
QUINTERO LAW OFFICE
1617 BROADWAY, 3RD FLOOR
SANTA MONICA, CA 90404 (US)
(73) Assignee: DARFON ELECTRONICS CORP.,
TAOYUAN (TW)
(21) Appl. No.: 10/863,737
(30) Foreign Application Priority Data
Jun. 17, 2003 (TW) TW92116343
Publication Classification
(51) Int. CI.7 B41J 5/08
(52) U.S. C I 400/472
(57) ABSTRACT
Alight module comprising a first power line, a second power line, and light devices. The first power line is connected to a first power point. The second power line is connected to a second power point. Each light device comprises a first terminal coupled to the first power line and a second terminal coupled to the second power line. A first sum of a first line length between the first power point and the first terminal of any of the light devices and a second line length between the second power point and the second terminal thereof is substantially a first constant.
