| 摘要 |
PURPOSE:To enable an indoor temperature of a refrigerator to be got in a sensitive manner by a method wherein two-color light emitting diode is controlled in its light emitting operation and a difference between a temperature of a temperature sensor and an indoor set temperature of the refrigerator is displayed in an analogue form as a variation of color-phase. CONSTITUTION:A panel plate 3 having a temperature displaying part 1 where an indoor temperature of refrigerator appears as a variation in color-phase and an operating knob 2 for use in setting an indoor refrigerator temperature is installed. A two-color light emitting diode is disposed at a rear part of the temperature displaying part 1. Numbers 1 to 9 set at an upper part of the operating knob 2 for use in setting the refrigerator indoor temperature which can be slid in a rightward or a leftward direction indicate a refrigerator indoor temperature which can be set. The two-color light emitting diode 10 constitutes a red color light emitting element R between it and one anode A1 disposed in respect to a common cathode K, and two elements having a green light emitting element G is formed between it and the other anode A2 are inserted into a transparent insulating case 11. Electrical current values flowing in each of the light emitting elements R, G are adjusted, a brightness of each of the light emitting elements R and G is varied and the colors of the light emitting diode 10 is changed to red, orange and green, respectively and then a difference between the set temperature in the temperature sensor and the set temperature value is displayed at the temperature displaying part 1 as a variation in color-phase. |
