Difference between revisions of "LED"
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| − | + | ===LED=== | |
| + | A '''Light-Emitting Diode''' is an electronic lamp device, used for indicator and numeric displays (seven-segment displays). Some cameras (such as the [[Canon A-1]]) use seven-segment numeric displays in their viewfinders. Originally, LEDs were all red; a little later, green was available, and then yellow; only quite recently have blue and - very recently, white - LEDs been possible. | ||
===OLED=== | ===OLED=== | ||
| − | + | An '''Organic Light-Emitting Diode''' uses electroluminescent compounds which are organic (carbon-based) chemicals. Different chemistries permit these LEDs to shine with different colors of light. An Active Matrix OLED (AMOLED) display may include millions of individually-addressed OLEDs. The technology is increasingly popular for digital camera [[EVF]]s and rear-panel displays. | |
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| + | [[Category:Abbreviations]] | ||
Latest revision as of 13:28, 23 November 2013
LED
A Light-Emitting Diode is an electronic lamp device, used for indicator and numeric displays (seven-segment displays). Some cameras (such as the Canon A-1) use seven-segment numeric displays in their viewfinders. Originally, LEDs were all red; a little later, green was available, and then yellow; only quite recently have blue and - very recently, white - LEDs been possible.
OLED
An Organic Light-Emitting Diode uses electroluminescent compounds which are organic (carbon-based) chemicals. Different chemistries permit these LEDs to shine with different colors of light. An Active Matrix OLED (AMOLED) display may include millions of individually-addressed OLEDs. The technology is increasingly popular for digital camera EVFs and rear-panel displays.
