Surface-conduction electron-emitter display | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-11

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Surface-conduction_electron-emitter_display


00:01:42 1 Description
00:09:33 2 Comparison
00:17:08 3 History
00:25:03 4 See also
00:25:25 5 Notes
00:25:34 5.1 Bibliography
00:25:43 6 Patents
00:25:52 6.1 Further reading
00:26:01 7 External links



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SUMMARY
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A surface-conduction electron-emitter display (SED) is a display technology  for flat panel displays developed by a number of companies. SEDs use nanoscopic-scale electron emitters to energize colored phosphors and produce an image. In a general sense, an SED consists of a matrix of tiny cathode ray tubes, each "tube" forming a single sub-pixel on the screen, grouped in threes to form red-green-blue (RGB) pixels. SEDs combine the advantages of CRTs, namely their high contrast ratios, wide viewing angles and very fast response times, with the packaging advantages of LCD and other flat panel displays. They also use much less power than an LCD television of the same size.
After considerable time and effort in the early and mid-2000s, SED efforts started winding down in 2009 as LCD became the dominant technology. In August 2010, Canon announced they were shutting down their joint effort to develop SEDs commercially, signalling the end of development efforts. SEDs are closely related to another developing display technology, the field emission display, or FED, differing primarily in the details of the electron emitters. Sony, the main backer of FED, has similarly backed off from their development efforts.