Solid-state light emitting display

Abstract

Abstract PURPOSE:To enable the variation of color tone and brightness of the LED lamp display by a method wherein a plurality of LEDs having two or more kinds of light emission colors are formed in an integral body with a common light reflection plate and a resin lens, and the number of LEDs is varied with the kinds of light emission colors. CONSTITUTION:A plurality of LED pellets 3,3,... having two or more kinds of light emission colors are mounted on a substrate 2, and a reflection plate 4 is arranged by surrounding these pellets 3,3...; further, an IC5 with built-in control circuits for LEDs is mounted on the substrate 2 in the back side of the reflection plate 4. Then, the substrate 2, LED pellets 3,3,..., reflection plate 4, IC5, and lead pins 6 are made integral by being surrounded with a resin 7. Varying the level of input signals given to the IC enables the variation of the number of LED pellets, 3,3,... with the kinds of light emission colors according to the level of this input signal and the variation of color tone and brightness of the display of the LED lamp 1.

Inventors

• 👤 Hiroshi Kitamura
• 👤 北邑　宏
• 👤 Haruo Kozai
• 👤 小材　治夫

Bibliographic Details