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Handheld television

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Portable device for watching television
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Memorex Pocketvision 25 handheld television, from the 1980s

Ahandheld television is aportable device for watchingtelevision that usually uses aTFTLCD orOLED andCRTcolor display. Many of these devices resemblehandheldtransistor radios. Unlike smartphones and tablets which have apps for viewing one's entire pay-TV subscription on them, handheld TVs are only able to receive local TV stations.

History

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Sony Watchman

In 1970,Panasonic released the first TV which was small enough to fit in a large pocket; called the Panasonic IC TV MODEL TR-001[1] andSinclair Research released the second pocket television, theMTV-1. SinceLCD technology was not yet mature at the time, the TV used a minusculeCRT which set the record for being the smallest CRT on a commercially marketed product.

Later in 1982,Sony released their first model - the FD-200, which was introduced as “Flat TV” later renamed after the nicknameWatchman, a play on the wordWalkman.[2] It had grayscale video at first. Several years later, a color model with anactive-matrix LCD was released. Somesmartphones integrate a television receiver, although Internet broadband video is far more common.

Since the switch-over to digital broadcasting, handheld TVs have reduced in size and improved in quality.[dubiousdiscuss][citation needed] Portable TV was eventually brought to digital TV withDVB-H, although it didn't see much success.

Hardware

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Elements of a pocket television CRT: (1) Recessed Screen, (2) Electron Beam, (3) Electron Gun

These devices often have stereo 1⁄8 inch (3.5 mm)phono plugs forcomposite video-analog mono audio relay to serve them ascomposite monitors; also, some models have mono 3.5 mm jacks for the broadcast signal that is usually relayed viaF connector orBelling-Lee connector on standard television models.

Some includeHDMI,USB andSD ports.

Screen sizes vary from 1.3 to 5 inches (33 to 127 mm). Some handheld televisions also double asportable DVD players andUSB personal video recorders.

Size

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Portable televisions cannot fit in a pocket, but often run on batteries and include acigarette lighter receptacle plug.

Pocket televisions fit in a pocket.

Wearable televisions sometimes are made in the form of awristwatch.

Notable brands and models

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See also

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References

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  1. ^"1970年代 カラーテレビの普及が加速 | パナソニック テレビと家電の歴史 | テレビ ビエラ | 東京2020オリンピック・パラリンピック公式テレビ | Panasonic".panasonic.jp (in Japanese). Retrieved2020-04-11.
  2. ^"Sony Japan | Sony Design|History|1980s".www.sony.co.jp (in Japanese). Retrieved2020-04-11.

External links

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Retrieved from "https://en.wikipedia.org/w/index.php?title=Handheld_television&oldid=1328519783"
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