Source: http://www.freshpatents.com/-dt20090312ptan20090067167.php
Timestamp: 2013-05-23 04:08:38
Document Index: 319130127

Matched Legal Cases: ['art 308', 'art 309', 'art 308', 'art 309', 'art 308', 'art 308', 'art 308', 'art 309', 'art 309', 'art 308', 'art 412', 'art 413', 'art 414', 'art 412', 'art 413', 'art 414', 'art 413', 'art 418', 'art 418', 'art 414', 'art 414', 'art 413', 'art 414', 'art 413', 'art 414', 'art 412', 'art 413', 'art 414', 'art 512', 'art 513', 'art 514', 'art 512', 'art 513', 'art 514', 'art 513', 'art 518', 'art 513', 'art 522', 'art 512', 'art 513', 'art 522']

Backlight Structure 4 views for this patent on FreshPatents.comupdated 05/17/13
Patents sorted by company.	03/12/09 | Class 362 Monitor | RSS | Browse: Prev - Next Backlight structure Abstract: A backlight structure comprises a frame, a circuit board, and a connector. The frame has an opening. The circuit board is located below the frame and has a through hole, wherein the through hole aligns with the opening. The connector passes through the opening and the through hole, protrudes from a surface of the frame, and is electrically connected to the circuit board. ...
Agent: Thomas, Kayden, Horstemeyer & Risley, LLP - Atlanta, GA, USInventors: Chuan-Ho Cheng, Chih-Kang Wu, Kuo-Cheng Huang, Shih-Che FuUSPTO Applicaton #: #20090067167 - Class: 362221 (USPTO) - 03/12/09 - Class 362 The Patent Description & Claims data below is from USPTO Patent Application 20090067167, Backlight structure.
Referring to FIG. 4, a schematic view of a first embodiment of the invention, FIG. 5, a B-B sectional view of the first embodiment of the invention, and FIG. 6, an exploded view of the first embodiment of the invention, the backlight structure 30 of the first embodiment comprises a frame 301, a circuit board 302, and a connector 303. The frame 301 has an opening 307. The circuit board 302 is located below the frame 301 and has a through hole 306 which aligns with the opening 307. The connector 303 passes through the through hole 306 and the opening 307, and protrudes from a surface of the frame 301. In the first embodiment of the invention, the connector 303 may be plastic. The connector 303 has an electrically conductive element 304 and at least one leg 314, and the electrically conductive element 304 is located in the connector 303, protrudes from a bottom of the connector 303 and is electrically connected to the circuit board 302. The leg 314 extends from the bottom of the connector 303 and contacts a bottom 302a of the circuit board 302.
Referring to FIG. 7, an exploded view of a connector of the first embodiment of the invention, and FIG. 8, a schematic view of a bottom of the backlight structure of the first embodiment of the invention, the connector 303 has a cavity 311, a positioning wall 312 and at least a gap 313. The cavity 311 is located at a top of the connector 303, the positioning wall 312 and the gap 313 are disposed adjacent to the cavity 311, and the positioning wall 312 is disposed between the gap 313 and the cavity 311. The electrically conductive element 304 of the connector 303 has a clipping part 308 located at a top of the electrically conductive element 304, a through part 309 and a backstay 310 located at an end of the electrically conductive element 304. When finishing the assembly, the clipping part 308 contacts the positioning wall 312, the backstay 310 protrudes from the bottom 303a of the connector 303, and the backstay 310 is bent to contact the bottom 302a of the circuit board 302. Thus, the bent backstay 310 is inclined to the leg 314 at a right angle. The through part 309 connects the clipping part 308 and the backstay 310, and is located in the gap 313 when finishing the assembly. In the first embodiment of the invention, the clipping part 308 is wavy to increase clipping capability. For design of the clipping part 308, however, the shape may vary dependent upon requirements (e.g. arched).
The assembly process of the backlight structure 30 of the invention is described in detail in the following. The backstay 310 and the through part 309 of the electrically conductive element 304 are passed through the gap 313 of the connector 303. The through part 309 is located in the gap 313, the backstay 310 passes through the gap 313 and protrudes from the bottom 303a of the connector 303, and the clipping part 308 of the electrically conductive element 304 clips and contacts the positioning wall 312 to fix the electrically conductive element 304 on the connector 303.
The assembly of the connector 30 and the electrically conductive element 304 is then passed through the opening 307 of the frame 301 and the through hole 306 of the circuit board 302 in sequence, and the leg 314 extending from the bottom 303a of the connector 303 contacts the circuit board 302. Then, the backstay 310 of the electrically conductive element 304 is bent to contact the bottom 302a of the circuit board 302, and is tightly attached to the bottom 302a of the circuit board 302 by SMT (Surface Mount Technology). Thus, the electrically conductive element 304 is fixed and electrically connected to the circuit board 302.
Referring to FIG. 9, a schematic view of a second embodiment of the invention, and FIG. 10, an exploded view of an E-E sectional view of the second embodiment of the invention, the backlight structure 40 of the second embodiment comprises an insulator element 401, a frame 402, a first circuit board 403, a second circuit board 409, a first electrically conductive element 404 and a second electrically conductive element 405, described in detail in the following. The insulator element 401 has a first opening 406. The frame 402 is located below the insulator 401 and has a second opening 407. The first circuit board 403 is located below the frame 402 and has a first through hole 408. The second circuit board 409 is disposed above the insulator 401 and has a second through hole 410. The first through hole 408 aligns with the first opening 406 and the second opening 407. The first electrically conductive element 404 passes upward through the second through hole 410, the first opening 406 and the second opening 407, protrudes from surfaces of the insulator 401 and the second circuit board 409, and clips the tubular lamp 411 to electrically connect to the tubular lamp 411. The second electrically conductive element 405 passes downward through the first through hole 408 of the first circuit board 403, the second opening 407 of the frame 402 and the first opening 406 of the insulator 401, and is electrically connected to the first electrically conductive element 404. The backstay 420, extending from a bottom 421 (as shown in FIG. 11) of the second electrically conductive element 405, contacts a bottom 403a of the first circuit board 403.
Referring to FIG. 11, an exploded view of a first electrically conductive element and a second electrically conductive element of the second embodiment of the invention, and FIG. 12, a schematic view of a bottom of the backlight structure of the second embodiment of the invention, the first electrically conductive element 404 has a first clipping part 412, a supporting part 413 and a first clipped part 414. The first clipping part 412 is located above the supporting part 413. The first clipped part 414 is located adjacent to the supporting part 413. The second electrically conductive element 405 has a second clipped part 418 extending upward from the bottom 421. When the first electrically conductive element 404 and the second electrically conductive element 405 are combined, the second clipping part 418 clips the first clipped part 414. In the second embodiment, the second electrically conductive element 405 clips the first electrically conductive element 404, and the first clipped part 414 protrudes from outsides of the supporting part 413 to increase the combined capacity of the first electrically conductive element 404 and the second electrically conductive element 405. However, the first electrically conductive element 404 can be modified to clip the second electrically conductive element 405, wherein the first clipped part 414 protrudes inward from the supporting part 413. The tubular lamp 411 (as shown in FIG. 13) is put in the first clipping part. When the second electrically conductive element 405 passes upward through the first through hole 408 of the first circuit board 403, the backstay 420, extending form a bottom 421, contacts the bottom 403a of the first circuit board 403.
The assembly process of the backlight structure 40 of the invention is described in detail in the following. The second electrically conductive element 405 is passed upward through the first through hole 408 of the first circuit board 403, and the backstay 420 contacts the bottom 403a of the first circuit board 403, and then the backstay 420 is bounded to the bottom 403a of the first circuit board 403 by surface mount technology (SMT). Thus, the second electrically conductive element 405 is fixed and electrically connected to the first circuit board 403.
The first clipped part 414 of the first electrically conductive element 404 is then passed downward through the second through hole 410 of the second circuit board 409, and the first electrically conductive element 404 is bounded to a surface 409a of the second circuit board 409 by surface mount technology (SMT), wherein the first clipped part 412 and the supporting part 413 of the first electrically conductive element 404 are exposed above the second circuit board 409. The first clipped part 414 of the first electrically conductive element 404 passes through the first opening 406 of the insulator 401 and the second opening 407 of the frame 402 in sequence.
Referring to FIG. 14, an exploded view of a first electrically conductive element 504 and a second electrically conductive element 505 of a third embodiment of the invention, and FIG. 15, an assembly drawing of the backlight structure of the third embodiment of the invention, the first electrically conductive element 504 has a first clipping part 512, a supporting part 513 and a first clipped part 514. The first clipping part 512 is located above the supporting part 513. The first clipped part 514 is located adjacent to the supporting part 513. The second electrically conductive element 505 has a second clipped part 518 extending upward from a bottom 521. In the third embodiment of the invention, the supporting part 513 has a fixing part 522. When the first clipping part 512 and the supporting part 513 of the first electrically conductive element 504 are exposed above the second circuit board 509, the fixing part 522 holds an edge 509b of the second circuit board 509 to increase the positioning effect of the first electrically conductive element 504. Other elements of the third embodiment are similar to those of the second embodiment, and the descriptions thereof are thus omitted.
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