请教：LCD TV
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mianfei
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在播放Native制式的信号时(如1080p的电视播放1080P信号)，LCD液晶板几乎是唯一决定图像质量的因素，（背光略有作用），关键要忠实反映信号源，不要自作主张搞什么信号增强，那就像往海鲜汤里加味精，画蛇添足。信号处理部分主要是用来做兼容信号的，如4:3转换16:9、SD转换HD，这个基本属于瞎猜的范畴，图像好坏，信则灵，不信则不灵，没有那个厂商有魔法，关键就是数据精度要高，减少运算精度损失，也就是处理区位数要高。
等离子体适合放运动图像，但可惜的是在高清领域，特别是电视信号，都采用MPEG4压缩，信号源上，运动图像细节已经给模糊掉了，你播放得再清楚，也是个MPEG4的模糊信号，因此用等离子体收看高清电视得不到应有的效果，用来播放蓝光等碟片信号还有点效果。
等离子体适合放运动图像，但可惜的是在高清领域，特别是电视信号，都采用MPEG4压缩，信号源上，运动图像细节已经给模糊掉了，你播放得再清楚，也是个MPEG4的模糊信号，因此用等离子体收看高清电视得不到应有的效果，用来播放蓝光等碟片信号还有点效果。
blackscraper
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mianfei
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Burn-in始终是个问题，无论厂商如何鼓吹新技术可以洗掉。你老是用来看新闻是不行的，新闻联播看多了，罗京死了一年多，你电视上还能天天看到他的影子。暂停播放，又忘记关DVD或蓝光播放机，而屏幕保护又不支持或没有启动都是问题。
LCD图像质量不是最好，但在DVD和蓝光信号的条件下肉眼已经很难区别了，HD电视信号条件下更是区别无几，除非并排两个放在一起用专用测试信号进行比较，而且新的机器区别才明显，PLASMA图像严厉对比度很高，但是若是因为Burn-in老显示你不需要的“好”图像，那也很没意思。
LCD更轻薄。价钱下调的可能会更大。
LCD屏幕本身的嗡嗡声很小， PLASMA这点很烦人。
PLASMA寿命鼓吹可以放心使用20~30年，条件是散热良好，播放图像有足够变化，但很多人不相信，因为PLASMA过热烧掉的案例经常发生。
LCD省电。
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我前面说过，Samsung, Sony, Sharp都是平板彩电第一梯队的，所以，这个电视不会差到哪里去。我粗略看了一下Specifications, 这个电视，可以接internet， 但只支持mpeg，所以，可以连接电脑直接看视频，但支持的格式很少，用途不大。可以在线查天气。缺点也是很明显的：1）Over priced, 价格太贵，不值；2）耗电量太大，300瓦功率！
建议你查一下网上的review.
shoppingcart
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好的plasma电视并不便宜。
PLASMA除了在光线较暗的房间色彩好，以及快速运动图像没有拖尾之外（现在的LCD电视已经很好了，一般也没有拖尾），其它方面没有什么优点。
缺点倒是一大堆：
1）burn-in问题。虽然采取了措施，但仍不能完全避免；
2）适合放置在光线较暗的房间，而不适合放置在光线明亮的房间；
3）屏幕有反光，干扰观看；
4）重量太重，运输，挪动，安装等都很麻烦；
5）耗电量大
6）需要良好散热
7）比LCD电视寿命短
8）像素较大，加上burn-in问题，不适合做计算机显示器或玩游戏；
。。。。。。。
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What is the Differance between Plasma & LCD, ?
Q:
1 Quality of picture
2 Length of service.
1 month ago
Ruth
Answers
Staff Answer
Expert Answer
A:
A common question among consumers is how Plasma Technology differs from LCD Technology.
Both provide an excellent HD picture, offer stunning arrays of colors, and of course, Samsung’s exclusive technologies which allow you to get the most out of either panel.
LCD traditionally uses a CCFL (Cold Cathode Fluorescent Lamp) backlighting system that runs across the rear internal portion of the unit to illuminate the LCD panel from behind (however, some emerging LED Televisions differ from this design). The lamp life is estimated up to 100 thousand hours, enjoys a tremendous following of enthusiasts, and translates into years of enjoyment of an affirmed, reliable and trusted technology.
Plasma Televisions operate using a combination of gas and glass to illuminate the individual pixels, or light sections, within the screen. The life of a plasma panel is up to 100 thousand hours, allows an expanded viewing angle over LCD, and has a response time as fast as .001ms. Some models are also capable of 3-D video. All of the Samsung Plasma units have a feature called Screen Burn Protection, which helps reduce the effects of static images and provide a quality image for the life of the panel.
Conventional LCD Televisions offer a great picture without image-retention and smooth image motion using the Auto Motion Plus processing. Plasma Televisions offer faster response times, future abilities for 3-D experiences, as well as appeals to customers replacing a tube television with a glass screen they are familiar and comfortable with. And, due to advances in technology, both plasma and LCD screens can work well even in the brightest rooms.
http://www.samsung.com/us/consumer/...P3DXZA/index.idx?pagetype=prd_detail&tab=spec
Q:
1 Quality of picture
2 Length of service.
1 month ago
Ruth
Answers
Staff Answer
Expert Answer
A:
A common question among consumers is how Plasma Technology differs from LCD Technology.
Both provide an excellent HD picture, offer stunning arrays of colors, and of course, Samsung’s exclusive technologies which allow you to get the most out of either panel.
LCD traditionally uses a CCFL (Cold Cathode Fluorescent Lamp) backlighting system that runs across the rear internal portion of the unit to illuminate the LCD panel from behind (however, some emerging LED Televisions differ from this design). The lamp life is estimated up to 100 thousand hours, enjoys a tremendous following of enthusiasts, and translates into years of enjoyment of an affirmed, reliable and trusted technology.
Plasma Televisions operate using a combination of gas and glass to illuminate the individual pixels, or light sections, within the screen. The life of a plasma panel is up to 100 thousand hours, allows an expanded viewing angle over LCD, and has a response time as fast as .001ms. Some models are also capable of 3-D video. All of the Samsung Plasma units have a feature called Screen Burn Protection, which helps reduce the effects of static images and provide a quality image for the life of the panel.
Conventional LCD Televisions offer a great picture without image-retention and smooth image motion using the Auto Motion Plus processing. Plasma Televisions offer faster response times, future abilities for 3-D experiences, as well as appeals to customers replacing a tube television with a glass screen they are familiar and comfortable with. And, due to advances in technology, both plasma and LCD screens can work well even in the brightest rooms.
http://www.samsung.com/us/consumer/...P3DXZA/index.idx?pagetype=prd_detail&tab=spec
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在gatineau，店名叫 Brault，在网上可以查到地址。如果你住ottawa，可以省8%的pst ，免费送货，三年的financing , no interest.
