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Anonymous asked in 電腦與網際網路硬體桌上型電腦 · 2 decades ago

什麼是DVO 和 DVI interface ?

什麼是DVO 和 DVI interface ?

3 Answers

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  • 2 decades ago
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    DVI (Digital Visual Interface)

    DVI was developed for transferring uncompressed digital video from a computer to a display monitor. It may also be used for interfacing devices such as settop boxes to televisions. DVI enhances the Digital Flat Panel (DFP) Interface by supporting more formats and timings, and supporting the Highbandwidth Digital Content Protection (HDCP) specification to ensure unauthorized copying of material is prevented. The interface supports VESA’s Extended Display Identification Data (EDID) standard, Display Data Channel (DDC) standard, and Monitor Timing Specification (DMT). DDC and EDID enable automatic display detection and configuration.

    “TFT data mapping” is supported as the minimum requirement: one pixel per clock, eight bits per channel, MSB justified. DVI uses transition-minimized dif ferential signaling (TMDS). Eight bits of video data are converted to a 10-bit transition- inimized, DCbalanced value, which is then serialized. The receiver deserializes the data, and converts it back to eight bits. Thus, to transfer digital R´G´B´ or YCbCr data requires three TMDS signals that comprise one TMDS link. To further enhance DVI for the consumer market, Silicon Image developed a method of transferring digital audio over the existing clock channel.

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  • Anonymous
    6 years ago

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  • Anonymous
    2 decades ago

    印象中在Pchome看過,這一兩個月的。

    提到LCD的接頭的問題。

      

    顯卡從主機傳出來的訊號是數位訊號~

    而傳統的螢幕接頭只能接收類比訊號,但LCD最後顯示還是要用數位訊號。

    所以顯示訊號到螢幕這邊必須經過多重轉換,變成了:

    數位→類比→數位

    這種轉換多餘而沒有必要,因此DVI誕生了。

      

    執行上面那種多重轉換的接頭在LCD稱作:D-Sub

    相對於D-Sub的就是所謂的DVI接頭。

      

    而DVI接頭底下又分好幾種,大致上是依支援各種轉換的程度來分~

    我記不大熟了。

     

    至於DVO,我不確定它和DVI有沒有關係,還是你想說的是 DVI-O?

    Source(s): 我的知識
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