The Difference Between VGA and DVI

A few years back you might have started to notice that newer graphics cards and monitors were coming with an extra input, it was the white multi pin DVI input which stands for digital video interface. Since most new computers and monitors will come with this DVI input as standard it's probably a good time to make the most of it, especially if you're not yet setup for HD. But is there actually any difference between the two in terms of picture quality? Let's take a look.

Small Lcd Vga Monitor

VGA and how it works - Reading about how a VGA signal works might leave you a bit confused, this is because the signal begins as digital when it is generated by the graphics controller, it then travels across the VGA cable as an analog signal until it reaches the other end (the monitor) and is then converted back to digital. This might seem like an inefficient way of doing things and in reality it is. For a standard CRT monitor there shouldn't be a problem with this kind of setup, this is because the CRT monitors draw the display using an electron beam, this passes over the coating that is inside the monitor.

Small Lcd Vga Monitor

The problem does occur however with LCD monitors. For an LCD monitor to display a VGA signal it needs to do an image map that will basically map each pixel on the screen to the correct colour. To achieve this it must applying a clocking and synchronising scheme. This is all good and well until things get out of sync, when this happens you will experience blurring or banding and this can negatively impact the quality of the picture.

DVI and it's improvements over VGA - DVI is a definite improvement over VGA for the simple fact that the signal is now an all digital signal, from start to finish. That means there is no conversions from digital to analog and because of this there is no synchronising that needs to be applied.

With the signal now all digital you will get a clearer picture and a faster display transfer, this will more or less correct the problem with banding that you might get with a VGA display. With DVI you get three types of cable which are:

DVI-D or 'true digital' as they are called is the standard used to connect a computer graphics card to a DVI enabled monitor DVI-A cables are used to connect a DVI input to a VGA monitor. They are not very common as most graphics cards either have both outputs (VGA and DVI) or if you have a DVI only graphics card you are likely to have a DVI ready monitor! DVI-I are cables that are able to transfer from digital to digital or analog to analog and are again not very common

So as you can see DVI cables are an improvement over VGA although in a real world scenario it is unlikely you will see a massive improvement like you would with HD. With that being said they are very widely available and are certainly better than using the old VGA technology.

The Difference Between VGA and DVI
Small Lcd Vga Monitor

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ASUS ML228H 22-Inch Ultra-Slim Widescreen LED Monitor
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ASUS ML228H 22-Inch Ultra-Slim Widescreen LED Monitor

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ASUS ML228H 22-Inch Ultra-Slim Widescreen LED Monitor Feature

  • 21.5" LED Wide (16:9) - 1920x1080
  • 10,000,000:1 ASUS Smart Contrast Ratio
  • Ultra Slim with Ergo Fit II Technology
  • Full 1080P HD with HDMI
  • ASUS Splendid Technology


ASUS ML228H 22-Inch Ultra-Slim Widescreen LED Monitor Overview

ASUS ML228H LCD -21.5" 1920x1080 - 21.5" LED Monitor with 10,000,000:1 ASUS Smart Contrast Ratio - Ultra Slim with Ergo Fit II Technology - Full 1080P HD with HDMI

ASUS ML228H 22-Inch Ultra-Slim Widescreen LED Monitor Specifications

Love at First Sight

Featuring ASUS LED Backlight technology, the 21.5-inch ASUS ML228H full HD monitor has a modern ultra slim design with incredible energy efficiency. ASUS LED Backlight technology not only enhances display quality but also provides a thinner and more operation than conventional LCD displays. The LED produces no mercury during manufacturing and emits less CO2 while saving up to 55% more energy1 when in use. Boasting a full 1080p HD resolution and a 10,000,000:1 ASUS Smart Contrast Ratio, high definition media will look amazing with brighter whites and darker blacks. ASUS Trace Free technology reduces the image response time to 2ms to eliminate ghosting for smooth motion playback. With six video selectable presets, ASUS Splendid Video Intelligence technology lets you choose your preferred setting to enhance everything from gaming to movie watching. Its geometrically shaped body and simplistic ring stand base provides sturdy support with easy one-touch rotate and tilt adjustment—giving you form with function. Its piano black, pearl white finish adds sophistication to any home or office.

Feel the Power. Hear the Power.

Key Features

  • 21.5-inch LED-backlit full HD monitor with 16:9 viewing ratio and 1920 x 1080 resolution (Learn more)
  • Ultra-slim 0.65-inch profile leaves a space-saving footprint(Learn more)
  • LED Backlight technology provides superior images, ultra-slim design, and up to 55% energy savings over conventional LCD monitors1 (Learn more)
  • ASUS Smart Contrast Ratio 10,000,000:1 provides brighter whites and darker blacks
  • Ergo-Fit II ring stand for easy one-touch tilt and rotate adjustment (Learn more)
  • ASUS Trace Free technology with quick 2ms response time (gray to gray) eliminates ghosting for smooth motion playback (Learn more)
  • HDMI input for brilliant clarity and wide compatibility with PCs, Blu-ray players, and game consoles (Learn more)
  • Splendid Video Intelligence technology with 6 preset scenario modes and 3 skin-tone presets (Learn more)
  • LED touch-sensitive buttons for easy access to picture adjustments and preset Splendid visual settings (Learn more)


Learn More

Visual Brilliance

Visual Brilliance
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The 21.5-inch ASUS ML228H LED-backlit full HD monitor has a 1920 x 1080 resolution and 16:9 viewing ratio that delivers eye-catching images while providing ample space to easily accommodate multiple windows simultaneously. The ML228H features ASUS Smart Contrast Ratio technology that automatically adjusts the backlight brightness for onscreen images and boosts the contrast ratio to an amazing 10,000,000:1 for more realistic image quality. Plus, its vibrant ASUS Splendid display engine and HDMI input provide lifelike images and sharp detail. From everyday office work to high definition entertainment, view your images and videos the way they are meant to be seen with the Aspect Control function that lets you select your preferred display settings to ensure distortion-free quality.

Vibrant Images with Green Power Efficiency

Vibrant Images with Green Power Efficiency
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The ML228H is Energy Star 5.0 certified making it an easy choice if you want to give the environment a helping hand and save on electrical costs. With the latest LED Backlight technology, the ML228H reduces power consumption by up to 55% over typical LCD monitors.1 The ML228H is also mercury-free, contributing to a greener environment. The ML228H is equipped with an advanced optical film that delivers 250 nits brightness for uncompromised luminance on top of its power savings. The ML228H also meets RoHS environmental standards to assure a sustainable manufacturing processes. Being green is easy with ASUS.

Sleek and User-friendly Design for the Modern Living Space

Sleek and User-friendly Design for the Modern Living Space
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The ultra-slim 0.65-inch thick ASUS ML228H is wrapped in a glossy piano-black frame and pearl-white rear bezel for an elegant fit in any living space. Complemented by LED touch-sensor buttons, every detail is carefully crafted for an upscale design. Amazing from all sides, the ML228H monitor has a razor thin appeal that frees up your desk for an exceptionally streamlined workspace. And with a unique ring stand with Ergo-Fit II technology, the ML228H easily tilts back up to 20 degrees with just the push of a finger. The ML228H is also practical with a built-in Kensington security lock for added security.

Intelligent Image Enhancement & 2ms Response Time

Intelligent Image Enhancement & 2ms Response Time
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ASUS Splendid Video Intelligence technology optimizes image quality with vivid colors, brightness, contrast, and sharpness corrections for the best visual experience. Splendid offers six video modes designed for scenery, theater, gaming, night view, standard, and sRGB, for optimized images on the Web. It also provides three skin tones, yellowish, natural, and reddish to produce more realistic human skin tones. With an ASUS Trace-Free technology LED-backlit panel, the ML228H provides a 2ms—gray-to-gray—quick response time for smooth and seamless transitions between frames that's perfect for action-packed movies or games.

Relax, ASUS Has You Covered

ASUS 3 Years LCD Monitor Warranty + 3 Years Panel Warranty
The ML228H comes with the ASUS 3 year LCD monitor warranty for its casing and panel. Accessories and cables come with a 1 year warranty. Within 3 years, if more than 3 bright dots and/or 5 dark dots are found, ASUS will replace the panel under the warranty. A bright dot is a white defective dot that is over 1/2 of the whole sub-pixel under BLACK pattern. A dark dot is a black defective dot that is over 1/2 of the whole sub-pixel under any pattern. Please visit http://livesupport.asus.com/products_lcd.html for more details on ASUS LCD monitor warranty policy.

What's in the Box

  • ASUS ML228H Monitor
  • HDMI-to-DVI Cable
  • VGA Cable
  • Power Cord
  • Power Adapter
  • Quick Start Guide
  • Warranty Information Card

Specifications

  • Panel Size: 21.5-inch Widescreen
  • True Resolution: 1920 x 1080
  • Pixel Pitch: 0.248mm
  • Brightness(Max): 250 cd/m2
  • Contrast Ratio (Max): 10,000,000:1 (ASCR)
  • Display Color: 16.7M
  • Viewing Angle (CR>=10): 170(H)/160(V)degrees
  • Response Time: 2ms (gray-to-gray)
  • Video Features:
    SPLENDID Video Intelligence Technology
    Trace Free Technology
    SPLENDID Video Preset Modes (6 modes)
    Skin-Tone Selection (3 modes)
    HDCP support
    Color Temperature Selection (4 modes)
  • Convenient Hotkey:
    SPLENDID Video Preset Mode Selection
    Auto Adjustment
    Brightness Adjustment
    Contrast Adjustment
    Input Selection
  • PC Video Input: HDMI, DVI-D (via HDMI-to-DVI cable) & D-Sub
  • Analog Signal Frequency: 30~83kHz(H)/ 50~75 Hz(V)
  • Digital Signal Frequency: 30~ 83KHz(H)/ 50~75 Hz(V)
  • Power Consumption: Power On <27 W, Power Saving Mode < 1 W, Power Off Mode < 1 W
  • Chassis Colors: Black and Blue
  • Tilt: +20°~ -5°
  • VESA Wall Mounting: Not available
  • Security: Kensington lock
  • Phys. Dimension (W x H x D): 20.37 x 15.85 x 8.27 inches
  • Weight (estimated): 8.38 lbs
  • Regulation Approval: Energy Star v5.0, UL/cUL, CB, CE, FCC, CCC, BSMI, Gost-R, C-Tick, MEPS, VCCI, PSE, J-MOSS, PSB, China Energy Label ,RoHS, WEEE, Windows Vista and Windows 7 WHQL

© 2010 ASUS Computer International. All Rights Reserved. ASUS is a registered trademark of ASUSTeK Computer. All specifications are subject to change without notice. Color and bundled software versions are subject to change without notice. Brand and product names mentioned are trademarks of their respective companies. Product may not be exactly as shown in photos.


1 Compares energy use to a conventional four lamp LCD monitor. Actual savings will vary on model and usage scenario.

Check Out Other Great ASUS Products

ASUS ML238H 23-Inch Wide Ultra-Slim LED Monitor
Get the same sleek design with an even bigger screen. Check out the 23-inch ML238H with Full HD, 2ms response time and the brilliant LED-backlight technology.

ASUS External Blu-ray Combo Drive (SBC-06D1S-U)
Add an external Blu-ray combo drive to your ML228H and enjoy the latest in HD entertainment. This ultra-slim external combo drive is easy to carry and does not require any external power sources. (Powers off the USB ports off your PC)

ASUS RT-N13U Wireless N Router (with USB)
Upgrade your network to faster performance and broader range with this EZ to setup wireless N router. You can even share an all-in-one printer with the peers in your network.

Cine5 Surround Sound Speaker Bar
With its all-in-one design, the Cine5 delivers dynamic surround sound that will satisfy consummate gamers and personal entertainment aficionados. Now you can experience accurate, five-channel surround sound anywhere including small apartments, study rooms, garages, and kitchen nooks.




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ASUS ML228H 22-Inch Ultra-Slim Widescreen LED Monitor

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