电视机问题,led ,lcd,plasma

vic_tan0911

电视机问题,led ,lcd,plasma 有什么分别??那种好??
什么牌子好?? sony ,samsung, LG ,toshiba,full hd 又有什么不同??

asairp

http://cforum3.cari.com.my/viewthread.php?tid=1792201&extra=page%3D1

vic_tan0911

asairp 发表于 15-8-2010 10:01 PM

只有lcd and plasma? led 呢??

edwintey

只有lcd and plasma? led 呢??
vic_tan0911 发表于 15-8-2010 11:11 PM

只有lcd and plasma? led 呢??
vic_tan0911 发表于 15-8-2010 11:11 PM

一般人多被误导了，其实市面上只有 LCD 和 Plasma TV，所谓的 LED ，只是原本由灯管的发光改为用 LED 灯泡发光照明而已，其基本架构还是 LCD，只是改变了发光体的光源罢了，不是甚麽新种类电视，以后将推出的 OLED 才是新东西，这只是过渡期骗吃的产品。
在美国并不是以 LED 称呼的，而以正确的说法是 LED Back Light LCD TV。
这其实在之前已经有讨论过很多了，也许你没注意到。
使用 LED 灯泡为光源的好处只是会节省一些电能和减少一些碳排量，不过我也读过一篇文章，指出科学研究结果证明，这些电和能源的节省是被夸大了，实际上分别并不多。

不过 LED 灯泡确实是比灯管耐用倒是真的。

vic_tan0911

谢谢你的告知，那我只好买lcd lo。led 贵很多

edwintey

大家也可以看一看 CNet  的一些資料；

我只取局部給大家看一看，如果要看全文就要到其網站去了。

An LED TV is not a new kind of TV
I appreciate a good marketing ploy as much as the next guy, but an LED TV is just an LCD TV that's backlit with light-emitting diodes (LEDs) instead of standard cold-cathode fluorescent lights (or CCFLs). And though they became well-known last year with Samsung's ultrathin models, LED-backlit LCDs have been on mainstream store shelves since 2007, when Samsung's LN-T4681F debuted.
Unlike plasma and OLED, which are emissive technologies where each pixel is its own discrete light source, LCD is a transmissive technology where each pixel has to be illuminated from behind, or backlit.

LED backlighting is even more efficient than standard fluorescent backlighting
It's definitely true that LED backlighting can cut down on power use, and some LED-backlit LCDs are, inch for inch, the most efficient flat panels available. On the flip-side, standard fluorescent backlighting is getting more efficient itself.

Our survey of TVs we've reviewed since 2008 finds that LED TVs use, on average, about 101 watts, compared with 111 watts for standard LCD TVs. Of course, screen size and picture brightness can affect power use significantly, but even in the largest screen sizes LED saves only about $20 per year.

這裡說明省電的課題被誇大了，其實每年加起來也不過是省個20元左右的電費（美金）。

全文請看 這裡