Light-emitting diodes are simply referred to as LEDs. It is made of a compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), or the like.
When electrons and holes recombine, they can radiate visible light, and thus can be used to make light-emitting diodes. Used as an indicator light in circuits and instruments, or as a text or digital display. The gallium arsenide diode emits red light, the gallium phosphide diode emits green light, the silicon carbide diode emits yellow light, and the gallium nitride diode emits blue light. Organic light-emitting diodes OLED and inorganic light-emitting diode LEDs are further classified by chemical properties.
The WLED white LED is the meaning of a white LED.
LED is the abbreviation of Light EmitTIng Diode, translated into Chinese as "Light Emitting Diode", which is a diode with the ability to convert electrical energy into light energy. At present, different LEDs can emit light of different wavelengths from infrared to blue, and white LEDs are coated with phosphors on blue LEDs to convert blue light into white light.
The so-called WLED refers to the white high-brightness backlight power supply; the white backlight is made up of several kinds of pure color light, the white light is more pure, and the materials used are more environmentally friendly, and the LED consumes less power for a longer period of time. Sony's Qualia series TVs are high-end large-size (40-inch, 46-inch) LCD TVs, and their backlights are made up of WLEDs called WLED backlight technology. LED backlight has many advantages, first of all, solid electronic lighting, the impact resistance of collision is higher than CCFL, and there is no environmental protection regulations of mercury gas, no UV UV leakage concerns, and surpass in color saturation and life. CCFL, in addition, LED can be driven as long as the forward voltage, unlike the positive and negative voltages that CCFL needs to communicate, even if only the forward drive voltage is used, the LED demand level is lower than CCFL. Furthermore, the brightness of the LED can be adjusted only by Pulse Width Modula(TM) (PWM), and the image sticking on the LCD display can be suppressed in the same way. However, the brightness adjustment of the CCFL is more complicated. It is impossible to suppress the afterimage, and it must be suppressed in another way. Although LED backlight has many advantages, it also has its shortcomings. Firstly, it is luminous efficiency. In terms of the same power consumption, LED is not as good as CCFL, so the heat dissipation problem will be more serious than CCFL. In addition, LED is a point light source and CCFL line type. It is more difficult to control the light uniformity than the light source. In order to achieve the best possible light, the characteristics of the produced LED must be carefully selected, and a large number of LEDs with the same characteristics (wavelength, brightness) are used for the same backlight. In this case, the cost of this selection is also quite high. Fortunately, the luminous efficiency of LEDs is still improving, and now it can reach more than 100 ml/W, so the color saturation can be better, and the WLED arrangement of the backlight is more relaxed, so that the power and heat dissipation problems are relieved. After the manufacturing yield rate continues to improve and mature, the cost of strictly selecting LEDs with the same luminous characteristics will also be reduced.
Wled and led which is betterWLED and LED are actually the same product WLED refers to white light color LED light-emitting diode referred to as White LED. LED includes WLED internal semiconductor light-emitting diode WLED-like application of high-end lighting light source, both bad and bad raw material extraction process.
Wled is higher in quality than led, and the lighting of wled is very soft, which is better than led. At the same time, the quality is better than led, but the price of led is relatively low.
Wire harnesses are commonly used in the electronics industry, the automotive industry, in the manufacture of construction machinery and industrial equipment, as well as in the manufacture of white goods such as washing machines and dryers, refrigerators, and other household appliances.A industrial wire harness is typically designed to simplify the manufacture of a larger component, and is designed based on the geometric and electrical requirements of the equipment it is to be installed in.
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