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qunideba

2009-03-20

如何选择等离子电视

目前，国内的等离子品牌主要有日立、加气混凝土砌块加气混凝土条板加气混凝土砌块加气混凝工厂松下、LG、三星、长虹、海信、厦华等几大厂商，其中日立、松下、LG、三星是同时具有等离子屏和整机生产能力的品牌。
首选尺寸选择电视首重尺寸，等离子电视等离子液晶电视大屏幕液晶而尺寸的大小应以收看电视的距离而定。根据人眼的视觉感受，最佳的观赏位置是位于距离屏幕高度3倍、视野角度与屏幕水平夹角成30°的地方。在这个位置欣赏画面，能得到和电影院相同的震撼视觉感受。以此计算，42英寸的最佳观赏距离为1.5米，50英寸为2米。
评估确切环境大小市面上的等离子电视大多以42和46英寸居多，因此在购买之前，变形缝阻火包防火堵料防火涂料用户必须要评估家中环境，尤其是客厅纵深问题。一般的建议是，观看电视画面的最近距离应是电视尺寸的4～6倍，也就是说，如果用户买的是42英寸等离子电视，观看的最近距离要达到约3.3米，更大尺寸就以此类推。
选高分辨率面板市面上的等离子电视依照分辨率不同，有标准分辨率和高分辨率（HD）两种。防火涂料阻火圈钢套钢保温管铁皮保温蒸汽管道保温标准分辨率为852×480，对于一般常见的480i或者是480p的电视讯号而言，的确是够用的。但是对于将来高分辨率的720p与1080i而言，不是很够用。除此之外，由于电脑常用的最低分辨率为1024×768，虽然透过影像处理芯片的运作，非HD面板也能够显示，但是文字的清晰度不够，会让使用者不习惯。所以，如果用户想要搭配电脑来使用，最好选购HD的面板。
看实机现场展示由于等离子电视是家庭使用的，因此在选购之前，预制直埋蒸汽保温管管道保温滚齿机制药设备最好到各大家电卖场看看实机展示。因为不管是造型、画面调整、亮度状况和操作界面，都是要看到实机才会有感觉，单单只是透过说明书的解释，其实是不够的。如果可以的话，最好全家动员，一起去家电卖场观看实机，当大部分家庭成员都能接受时，买回家就不会有问题。
用熟悉影片测试选购电视类的产品，除了规格之外，不锈钢旗杆汽车设备燃烧机北京摄影公司颜色的调整也是很重要的一环，由于各家卖场展示条件有所不同，因此笔者建议用户可以携带熟悉的DVD影片，到卖场去实际播放。看看想要买的等离子电视，它的颜色调整、画面和明暗处表现，是否符合使用者的需求。
确认产品保修条件不管用户想要买哪一家的等离子电视，售后服务都是很重要的，臭氧消毒开窗器黄粉虫小吃车多功能小吃车尤其是亮暗点的保修，更是需要事先商定好。因为最容易发生交易纠纷的，大多都是在亮暗点的保修上。除此之外，由于等离子电视体积不小，不易搬运，因此需要维修时厂家能够上门收送，会比要求使用者自己搬到维修中心要方便多了。
对比度要高无论观看电视或看电影，您所追求的自然是层次丰富、豆腐机小吃车多功能小吃车小吃车充满立体感的画面表现，这就要求电视机应具有较高的对比度。因为只有高对比度才能反映出不同画面各种细微的变化，使影像表现自然而充满真实感。在选购时，可以播放观看一些昏暗场景的片段，留意一些未全黑的图像，多功能小吃车豆腐机如夜晚的街景等，高素质的等离子电视机，应该看到细节丰富、黑暗层次分明的画面。
颜色自然准确电视颜色的表现能力也是电视的主要性能之一。定硫仪周易预测植物提取设备 1/9 逆流提取设备 ~~~1/2 液晶电视虽然颜色艳丽，但画面色彩的夸张和运动物体色彩怪怪的感觉，就是色彩表现不及PDP自然和保真性好的反映。优异的等离子电视画面颜色应该真实准确，层次丰富且渐变自然。结晶罐单效浓缩器活动隔断钢结构防火涂料选购时，您可以留意一些人物肤色的画面，或多种色彩丰富的图像，看看效果是否自然，细节是否细腻而充满质感。
分辨率不是关键参数随着07年1月份由国家信息产业部颁布的国家数字电视高清标准的开始实施防火包带防火包防爆胶泥电缆防火涂料，市售的主流等离子电视产品在屏幕分辨率方面都能够符合这一标准要求，完全可以满足未来国内高清电视的播放需要。但电视的影像画质效果并不单由屏幕分辨率决定，动态清晰度、对比度、色彩、影像处理等因素关系更大，所以没有一味追求高分辨率的必要。
屏幕亮度要适宜对于电视产品，没有必要过分追求于高亮度，家居环境中，自粘性防火包带安吉尔饮水机卧式石英管清洗机石英钟罩清洗机动态应变仪 1000cd/m2的亮度就完全能够满足日常需要，如果亮度调的太高的话还会容易造成视觉疲劳。目前，市场上主流的等离子电视产品都可以提供高于实际用途的亮度。
影像处理要过硬除去屏幕的因素，实力雄厚的厂商在内部电路的设计、静态应变仪振弦应变计无机铝盐防水剂 JS复合防水材料影像处理器的配置等方面也是非常出色的，具有过硬的影像处理能力。因为就算采用相同的屏幕，影像处理能力的高低，反映到画质表现上也会有很大差异。在选购时，您不妨自带几张DVD试机碟，看看实际播放DVD画质的效果如何堵漏王沙浆王铰链隔断，整体画面层次是否出色，噪点处理、抗锯齿效果是否很好等。

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