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Forum 电脑连接液晶电视的问题
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电脑连接液晶电视的问题

志者远翔
志者远翔 over 14 years ago

液晶电视接入PC信号,主要用途有三种:看HDTV高清视频、玩电脑游戏和简单的上网娱乐。那么这些操作对液晶电视有些什么要求呢?消费者在挑选的时候要考虑些什么问题呢?

液晶电视与电脑连接需要考虑的问题首先,液晶电视接入电脑要考虑分辨率设置问题。液晶显示屏幕都存在一个固定的物理分辨率,只有信号分辨率和屏幕分辨率一致才能达到最佳的显示状态,发挥出液晶高分辨率的优势。目前液晶电视的主流分辨率有1366×768和1920×1080两种,两者都是非VESA标准分辨率,VGA接口无法正常传输,DVI或者HDMI这类数字接口在特定条件下可以手动设置实现自定义分辨率。同时,由于液晶电视本身电路设计的原因,不一定能很好地兼容显示不同的分辨率,当遇到不支持的分辨率的时候就无法正常显示。由于目前PC和电视之间对接兼容性不够好,笔者在这里建议准备购机的朋友优先考虑VGA、DVI、HDMI三种接口都齐全的机型,如果没有同时配备三种接口,就先考虑数字和模拟接口都有的机型。有时候最好还是不辞劳苦地扛着主机到卖场测试确认再决定购买产品。

液晶电视与电脑连接需要考虑的问题其次,我们可以看看产品有没有为PC接入而专门设置PC模式。一些考虑周全的机型会针对用户连接PC的情况设计PC显示模式,在该模式下用户连接电脑可以得到更加理想的显示效果,例如自动逐点对应可以使字体更加清晰锐利,或者宽屏/全屏模式可以使画面不会出现横向拉伸失真等等。

液晶电视与电脑连接需要考虑的问题接下来,我们还要考虑PC的音频信号传输问题。由于目前多数显卡尚未支持音频解码,刚刚推出的支持音视频同步传输的X2000系列次世代显卡价格高型号少,因此大部分用户的PC音频信号是不能从显卡的HDMI、DVI或者VGA接口输出的。如果用户打算用电视本身的伴音系统作声音输出的话,PC视频接口必须配备有相应的音频输入接口才可以顺利实现音视频同步,因为液晶电视只能同时播放同一组接口的音频和视频信号。当然,如果电视没有为PC视频接口专门配备音频输入的话,我们还可以通过电脑外连音箱输出声音。

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