| 摘要 |
PURPOSE:To obtain a LED array board wherein fluctuation in the quantity of light is substantially eliminated by forming a light reflective member on the top face of the board around some of LEDs. CONSTITUTION:In the LED array board 1, a-copper pattern 12 is formed on the top face of a base 11 and gold plating is applied on the copper pattern 12 and then a plurality of LED chips 13 are die bonded or wire bonded thereto. A green resist layer 14 is formed through printing around the LED chips 13 and a white resist layer 15 is formed on the green resist layer 14 only at the opposite ends of the board through silk printing. When the quantity of light is measured after mounting the LED chips 13, no reduction is found at the opposite ends because white resist layer 15 is formed thereat and the quantity of lights can be made uniform substantially over the entire area of the board. |
