Specifications
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Technical white paper | HP ZBook 17 G2 Mobile Workstation
Aspect ratio
The proportional relationship between an image’s width and height is referred to as its aspect ratio. Aspect ratio is
usually written in the form width:height. The old common standard was a 4:3 format. However, with the advent of
widescreen displays that new standard is 16:9 which is the aspect ratio used for High Denition television. There are also
many other aspect ratios, including a 16:10 which is found in some notebook PC displays. When considering which aspect
ratio is right for you, understand that a 16:9 will allow for more work to be spread horizontally, and often allows for a
more comfortable keyboard layout. On the other hand, a 16:10 ratio will allow for a slightly more vertical workspace.
Resolution
Screen resolution is a measure of the amount of pixels a screen can display. Usually measured in the format “Width x
Height”, a display of 1920 x 1080 would contain 1920 pixels horizontally and 1080 pixels vertically. The total amount
of pixels on the display for this resolution would be 2,073,600 pixels. With a higher screen resolution you will get more
pixels, and thus more detail in images on your display. A 13" diagonal display with less pixels can’t show as much detail
of an image as the same size display with a higher pixel rating as shown in gures 2 and 3. In theory, a display with
more pixels should allow you to see more on your screen at once. However, due to large resolution increases lately and
changes in operating system behaviors that are outside of this scope, that is not always the case.
Figure 2. 720p display on an HP ZBook 17
Figure 3. 1080p display on an HP ZBook 17
Similar to resolution, you can also measure displays in pixels per inch (PPI). This is a simple measurement and takes into
account both screen size and the resolution of your screen to tell you how many pixels exist per square inch on your
display. Displays with a low PPI measurement will have less pixels per inch and a display that is less crisp than a display
with a high PPI measurement. Generally, if you are working with photos or videos, you will want a high PPI display.