液晶显示器上有个高清接口和普通接口有什么区别?

2024-11-01 18:10:56
推荐回答(4个)
回答1:

区别大了去了,首先,VGA接口是这三种中最落后的,这点大家都知道,不谈它了,只谈DVI与HDMI。
DVI与HDMI都是数字接口,DVI在市场上已应用多年,HDMI是前两年新推出的一种全高清数字接口,有几种版本之分,分别是1.0、1.1、1.2、1.3四个版本,其中1.0是早期的版本,现在已经没有应用,而市面上销售的HDMI液晶显示器、电视机等设备基本上只达到HDMI 1.2的版本,1.3版本的极少,楼主使用的2370显示器也是1.2版本的接口。1.2版本带宽为165MHZ,与DVI接口带宽完全相同,因此可以说,在视频信号传输上,HDMI接口并不比DVI接口强,通过DVI接口同样可以支持1080P。
现在支持1.3版本HDMI接口的设备不多,只有部份显卡,部份高端的电视与PS3游戏机才支持,1.2版与1.3版相比差异较大,主要有以下几点:
1是带宽从1.2版本的165MHZ增加到340MHZ,传输速率增加了1倍。
2实现了深色,将以往各色(RGB/Y.Cb.Cr)8bit的量子界限,提高到了10bit,12bit,16bit。深色的实现使得固定画素的显示更加流畅,显示设备上显示色彩的空前逼真和精确。并且消除了屏幕上的色带,使色调转换更为平滑,色彩之间的渐变更细微。它能够增加对比率,可以在黑色和白色之间展现更多倍的灰色阴影。就一般来说,视觉效果上如果要完全让色彩条带消失,需要12bit。
3对xvYCC色域的支持进一步提高了色彩的表现力,使得从前的sRGB规格表现不了的一些色彩得到更加完美的展现。
4在最新的HDDVD和Blu-ray Disk次时代影碟中,HDMI 1.3加入了两种完全无损耗(lossless)的音频格式DOBLY TRUE HD以及DTS-HD MasterAudio。
5增加了自动掩饰影音系统间延迟功能,可确保不同系统之间的内容实现更好的“唇型同步”(lip synching)效果。不仅仅是HDMI,所有数字传送都存在着影音不同步的现象。HDMI1.3加入了自动处理功能,自动调节影音的延迟,以达到同步效果。
6考虑到摄像机和其他一些小型的AV器材,HDMI1.3增加了最新的小型HDMI接口。

DVI与HDMI1.2的区别主要是在于HDMI可以同时传输声音信号,而DVI不可以,DVI线只能做到3米长,而HDMI可以长达十多米,其它就没什么区别了。
HDMI的线比较贵,一般杂牌线2-3米的价格在60-80左右,再低就不要考虑了,肯定是垃圾。名牌的2-3米的线一般不会低于150元,200-300元的线也很常见,如果要买推荐买名牌产品,质量比较稳定,信号衰减率也比杂牌低很多。
最后也列一个公式给楼主参考
仅从视频信号角度来说:HDMI-1.3 > HDMI-1.2 = DVI > VGA

回答2:

VGA,又称D-Sub,输出的是模拟信号;DVI是数字信号,即数字视频接口;HDMI是高清晰度多媒体接口。看高清电影最好的是HDMI,其次是DVI,最后是VGA

回答3:

传输带宽不一样,现在的显示器有3种接口:D-Sub,DVI和HDMI,22寸以下的用D-Sub接口即可,22寸及以上的最好用DVI或HDMI接口,因为屏幕较大,传输带宽要求较高,普通的D-Sub接口有点不够用,会偶尔出现拖影的情况。但是前提是要你的显卡也要有相应的接口才行。

回答4:

顾名思义,将高清设备接入高清接口就可以看高清影视了。

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