LED(light emitting diode)because it glows even if there is a weak current passing through it
An LCD (Liquid Crystal Display) uses a backlight source to illuminate the screen and display images. This backlight could be a fluorescent light or LED (Light Emitting Diode) depending on the model and technology used in the LCD display.
LED stands for "Light Emitting Diode." It is a semiconductor device that emits light when an electric current passes through it. LEDs are used in a wide range of applications, including lighting, electronic displays, indicators, and many others. They are energy-efficient, durable, and available in various colors and sizes, making them popular for both commercial and residential use. LEDs have largely replaced traditional incandescent and fluorescent lighting due to their longer lifespan and lower energy consumption.
Flashlights typically use electrical energy stored in batteries to power the light-emitting diode (LED) or incandescent bulb, converting it into light energy that illuminates the area.
To my knowledge, there is no Liquid Emitting Diode. There is a thing called Light Emitting Diode (a tiny thing with two terminals). When connected to a small electric current, the gadget emits light (of many colours, of course). Car makers also use this kind of device to make tail lights in modern cars. Recently electrical equipment manufacturers have introduced household lighting bulbs utilizing LED technology. These bulbs are more energy-efficient than CFL bulbs.
I can't give you a for-sure answer, but Cree LEDs are some of the most efficient out there.
LED - Light Emitting Diode can be seen in railway digital indicators. You can also see LED's in your digital wrist watches. There are many such examples.
LED means "light emitting diode." That is a semiconductor that produces light. LEDs are found on various parts of a computer. Some are used such as on the front panel to show that the computer is in use. Some are used for status lights, speed indicators, temperature gauges, and for decoration. Then of course there are LED-based computer monitors. They use an entire sheet of many tiny LEDs which are connected to driver circuitry and are used the same way as traditional CRT-based computer monitors. The overall result is the same - electrons excite a rare material and cause it to glow, but the method is different. CRT monitors used a high voltage electron beam to strike phosphors on the front of the CRT tube. LED and LCD monitors use lower voltage that is directly applied to the material, and the result is the same - it glows.
Liquid-crystal display televisions (lcd), Use a lot of Power. Light-emitting diode (led) is using Half the power. So buy led tv!
vague question. quickest thing is to bridge (or connect) the two terminals with a paper clip. then it creates heat. or use an LED (light emitting diode) then you have light. otherwise you may need to get a bit more in-depth with your question.
LED lights are energy-efficient lighting options that use light-emitting diodes to produce light. They consume less energy, last longer, and are available in various colors and designs for different applications. LED lights are commonly used in homes, offices, outdoor spaces, and in electronic devices.
You can test it by puting it in forward bias with a resistor. Use a dc voltage source of 5 volts and put it in series with 250 Ohms resistor. Or use 9volts with a 450 Ohms resistor. Basically you need 20mA of forward current usually. Smaller current will reduce brightness.