| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the flexure of a light emitting panel and a wiring board which is caused by a thermal expansion difference and adequately conducts wire joining to the wiring board in a lighting device where the light emitting panel and the wiring board are joined through a wire. <P>SOLUTION: A lighting device 1 comprises: a light emitting panel 4; a wiring board 5; and a fixing part 8 disposed between the members 4, 5 and bonding and fixing the members 4, 5. The light emitting panel 4 and the wiring board 5 are electrically connected with each other by connecting an electrode pad 42d of the light emitting panel 4 with an electrode pad 5c of the wiring board 5 through a wire 7. The fixing part 8 is disposed at a position corresponding to the electrode pad 5c of the wiring board 5. Since the light emitting panel 4 and the wiring board 5 are partially bonded and fixed to each other, thermal expansion of one member does not easily affect the other member and the flexure of the members 4, 5 due to a thermal expansion difference is reduced. Further, the bonding between the light emitting panel 4 and the wiring board 5 is enhanced at an area near the electrode pad 5c, and ultrasonic joining is effectively performed to adequately conduct joining between the electrode pad 5c and the wire 7. <P>COPYRIGHT: (C)2013,JPO&INPIT |
