Flat-panel display: Difference between revisions
I've change the date the flatscreen TV was invented to the correct date and who invented the flatscreen TV |
That sounds PREPOSTEROUS. If 1964, would anyone kindly explain why it didn't go to mass-production for the next 40 years? |
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'''Flat panel displays''' (sometimes called '''Flatscreen''', however, strictly '''Flatscreen''' is also used to desribe CRT screens that have a completely flat front surface) encompass a growing number of technologies enabling [[video display]]s that are much lighter and thinner than traditional [[television]] and video displays that use [[cathode ray tube]]s, and are usually less than 100 mm (4 inches) thick. They can be divided into two general categories; ''volatile'' and ''static''. |
'''Flat panel displays''' (sometimes called '''Flatscreen''', however, strictly '''Flatscreen''' is also used to desribe CRT screens that have a completely flat front surface) encompass a growing number of technologies enabling [[video display]]s that are much lighter and thinner than traditional [[television]] and video displays that use [[cathode ray tube]]s, and are usually less than 100 mm (4 inches) thick. They can be divided into two general categories; ''volatile'' and ''static''. |
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The first ever flat panel television was invented by William Aiken in 1964. |
The first ever flat panel television was invented by William Aiken in 1964.{{fact}} |
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In many applications, specifically modern portable devices such as [[laptop]]s, [[cellular phone]]s, and [[digital camera]]s, whatever disadvantages exist are made up for by the portability requirements. |
In many applications, specifically modern portable devices such as [[laptop]]s, [[cellular phone]]s, and [[digital camera]]s, whatever disadvantages exist are made up for by the portability requirements. |
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Revision as of 07:09, 26 April 2011
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Flat panel displays (sometimes called Flatscreen, however, strictly Flatscreen is also used to desribe CRT screens that have a completely flat front surface) encompass a growing number of technologies enabling video displays that are much lighter and thinner than traditional television and video displays that use cathode ray tubes, and are usually less than 100 mm (4 inches) thick. They can be divided into two general categories; volatile and static.
The first ever flat panel television was invented by William Aiken in 1964.[citation needed]
In many applications, specifically modern portable devices such as laptops, cellular phones, and digital cameras, whatever disadvantages exist are made up for by the portability requirements.
Volatile
Volatile displays require that pixels be periodically refreshed to retain their state, even for a static image. This refresh typically occurs many times a second. If this is not done, the pixels will gradually lose their coherent state, and the image will "fade" from the screen.
Examples of volatile flat panel displays
- Plasma displays
- Liquid crystal displays (LCDs)
- Organic light-emitting diode displays (OLEDs)
- Light-emitting diode displays (LED)
- Electroluminescent displays (ELDs)
- Surface-conduction electron-emitter displays (SEDs)
- Field emission displays (FEDs) (also called Nano-emissive displays (NEDs))
Only the first five of these displays are commercially available today, though OLED displays are beginning deployment only in small sizes (mainly in cellular telephones). SEDs were promised for release in 2006, while the FEDs (also NEDs) are (as of November 2005[update]) in the prototype stage.
Static
Static flat panel displays rely on materials whose color states are bistable. This means that the image they hold requires no energy to maintain, but instead requires energy to change. This results in a much more energy-efficient display, but with a tendency towards slow refresh rates which are undesirable in an interactive display.
Bistable flat panel displays are beginning deployment in limited applications (Cholesteric displays, manufactured by Magink, in outdoor advertising; electrophoretic displays in e-book products from Sony and iRex; anlabels).
See also
- 3D displays requiring no special glasses
- Computer monitor
- Electronic paper
- Flexible display
- Large-screen television technology
- Mobile display
- On-vehicle display
- Sony Watchman
- Touch panel
- Transparent display
External links
- TFT Central - flat panel monitor reviews, news and articles
- Finetech Japan, FDP Exhibition and Conference
http://www.techeblog.com/index.php/tech-gadget/feature-strange-inventions-you-never-knew-about