Field-emission display | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-05-06

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Field-emission_display


00:01:48 1 Operation
00:04:27 2 Disadvantages
00:06:19 3 Competing technologies
00:06:29 3.1 Cathode ray tube
00:07:09 3.2 LCD
00:09:41 3.3 OLED
00:10:23 3.4 SED
00:11:33 4 History
00:16:30 5 See also



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SUMMARY
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A field-emission display (FED) is a flat panel display technology that uses large-area field electron emission sources to provide electrons that strike colored phosphor to produce a color image. In a general sense, an FED consists of a matrix of cathode ray tubes, each tube producing a single sub-pixel, grouped in threes to form red-green-blue (RGB) pixels. FEDs combine the advantages of CRTs, namely their high contrast levels and very fast response times, with the packaging advantages of LCD and other flat-panel technologies. They also offer the possibility of requiring less power, about half that of an LCD system.
Sony was the major proponent of the FED design and put considerable research and development effort into the system during the 2000s. Sony's FED efforts started winding down in 2009, as LCD became the dominant flat-panel technology. In January 2010, AU Optronics announced that it acquired essential FED assets from Sony and intends to continue development of the technology. As of 2016, no large-scale commercial FED production has been undertaken.
FEDs are closely related to another developing display technology, the surface-conduction electron-emitter display (SED), differing primarily in details of the electron-emission system.