| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent light leaking out to the back side of a lead frame, and at the same time to increase light intensity in light emitted from the front of a display. <P>SOLUTION: The lead frame 3 where a light-emitting device 2 is packaged corresponding to a small hole 12 is fitted from the back side to a display case 1 having a recess 11 where the small hole 12 is formed in a bottom surface, a reflection member 4 is mounted to the back of the lead frame 3, and the inside of the display case is sealed with a light transmission sealing resin 5. Then, the light leaking to the back side of the lead frame 3 from the small hole 12 is reflected to a front side by the reflection member 4. In this case, from the point of view of making uniform temperature distribution to eliminate a variation in light intensity in the display, it is preferable to form a projection 43 on the back of the reflection member 4. Additionally, preferably, the projection 43 projects from the sealing resin 5 to improve heat radiation properties in the display. <P>COPYRIGHT: (C)2004,JPO |
