Semiconductor solid-state light-source module and assembly having the same

• US 7,744,264 B2
• Filed: 09/02/2008
• Issued: 06/29/2010
• Est. Priority Date: 11/06/2007
• Status: Expired due to Fees

• Current Assignee: Foxsemicon Integrated Technology Incorporated
• Original Assignee: Foxsemicon Integrated Technology Incorporated
• Inventors: Jiang, Wen-Jang, Hsu, Hung-Kuang, Wang, Chun-Wei, Tsao, Chih-Chung, Lai, Chih-Ming, Hsu, Chih-Peng
• Primary Examiner(s): Sawhney; Hargobind S
• Application Number:
  US12/202,557
• Publication Number:
  US 20090116235A1
• Time in Patent Office: 665 Days
• Field of Search: 362/33, 362/97.1, 362/97.3, 362/97.04, 362235-238, 362/240, 362/244, 362/246, 362/249.02, 362/249.04, 362/368, 362/559, 362/631, 362/646, 362/800, 362/812, 361728-733, 361/736, 361/741, 345/1.3, 405/41, 405/42, 405/46, 405/52, 405/63, 405/64, 405/73, 406/05, 406/24
• US Class Current: 362/631
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21S 2/005 of modular construction
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 19/04 with provision for changing light source, e.g. turret auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0073 Light emitting diode [LED]
• CPC Class Codes: H05K 1/14 Structural association of two or more printed circuits providing electric connection to or between printed circuits H05K1/11, H01R12/00
• CPC Class Codes: H05K 2201/048 Second PCB mounted on first PCB by inserting in window or holes of the first PCB
• CPC Class Codes: H05K 2201/09963 Programming circuit by using small elements, e.g. small PCBs
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]

Abstract

An exemplary semiconductor solid-state light-source module includes a printed circuit board, at least one semiconductor solid state light source mounted on the printed circuit board and a light guide plate optically coupled to the semiconductor solid state light source. The printed circuit board includes a protrusion and a recess. The protrusion is configured for engaging with a recess of the printed circuit board of another similar semiconductor solid-state light-source module.

Claims

1. A semiconductor solid-state light-source module, comprising:

a printed circuit board,

at least one semiconductor solid state light source mounted on the printed circuit board; and

a light guide plate optically coupled to the at least one semiconductor solid state light source, wherein the printed circuit board comprises a first protrusion, a second protrusion, a first recess opposite to the first protrusion, and a second recess opposite to the second protrusion, the first protrusion thereof configured for engaging in the first recess of the printed circuit board of another same semiconductor solid-state light-source module along a first direction, the second protrusion thereof configured for engaging in the second recess of the printed circuit board of another same semiconductor solid-state light-source module along a second direction approximately perpendicular to the first direction;

wherein the printed circuit board further comprises a power interface configured for electrical connection to an external power supply, the power interface being electrically connected to the at least one semiconductor solid state light source;

wherein the semiconductor solid-state light-source module further comprises an external controlling unit, wherein the at least one semiconductor solid state light source comprises a plurality of semiconductor solid state light sources electrically connected in parallel, each of the semiconductor solid state light sources includes a first electrode connected to the external controlling unit, and a second electrode connected to the power interface, and the external controlling unit is configured for controlling on-off states of the semiconductor solid state light sources;

wherein the semiconductor solid-state light-source module further comprises a plurality of controller chips, wherein the first electrode of each semiconductor solid state light source is connected to the external controlling unit by the respective controller chip, and the external controlling unit is configured for controlling the controller chips to control on-off states of the corresponding semiconductor solid state light sources.