LED display LED full color display LED display prices - Shaanxi Hi-Tech Optoelectronics Technology ..

LED display | LED full color display 1 3 9 9 2 8 8 9 9 6 3 | LED display prices - Shaanxi Hi-Tech Optoelectronic Technology Co., Ltd. by: single LED power is low. In order to obtain power, require multiple parallel, such as automobile taillights, and a single high-power LED is very expensive. LED Another fatal flaw, color rendering index is low! Color display in the LED illumination is not true incandescent, which come from the spectral distribution analysis, a technical problem. LED lighting Another disadvantage is that "spot", because the white LED manufacturing process itself together with errors and defects in the reflective cup or lens, likely to cause "yellow circle" problem. The current semiconductor lighting disadvantage mainly in the following two aspects: 1, high-power LED current high prices, 1-watt high-power white LED market price is about ten times to several times the price of traditional light sources. 2, high-power LED application form commercialization of low light efficiency 3 watt low-power light emitting diode luminous efficiency, lower than the luminous efficiency of 100 lumens per watt high-intensity discharge lamp, also less than 60 lumens per watt The rare earth tricolor fluorescent lamp. He said power semiconductor lighting, energy saving, in fact, only in the establishment of small power range, with current technology and existing semiconductor light sources do not save efficient light sources and how much power compared to high-power lighting, but the initial investment costs are high. Low-efficiency Another problem is that a large amount of electrical energy transformed into heat energy input, said light tube is a cold light source only is the luminous body itself is not a burning body, but a large current resistance heat generated in the semiconductor material or make light tube resulting in a higher temperature, while the semiconductor material of the light emitting diodes do not heat, overheating will make life significantly reduced, with radiator heat increases the volume of the lamp, the semiconductor light source is small, light weight advantages disappear. Based on the above analysis we can see, the luminous efficiency and in terms of price levels, the semiconductor light source in the short term really entered the field of general lighting to replace traditional light sources is not easy. Addressing these issues requires greatly increased the arc tube and greatly reduce production costs luminous efficiency. However, in the current state of technology, the development of semiconductor lighting industry weaknesses, positive development in the dominant direction, promoting technological progress and production processes mature, semiconductor lighting era can come early. (From the LED display maintenance network)