HDMI jack
HDMI plug
Senseye®+game technology offers two new operating modes, ‘Action Game Mode’ and
‘Racing Game Mode’, which optimise image quality for applications with fast-moving
image content. Colours, brightness and contrast are adjusted to provide perfect image
quality and thus optimum gaming pleasure.
Ports
VGA/D-sub port (analogue)
As with conventional CRT displays, LC displays have a D-sub port (or VGA port) as
a general standard. It consists of a 15-pin D-subminiature connector. With
analogue VGA signal transmission, the digital image signal produced by the
computer is converted into an analogue signal by the graphics card. This is
an advantage for CRT displays as they can only process analogue signals.
For digital LC displays, however, this is not ideal. If a digital LC display
receives analogue signals, a transducer has to convert the analogue input
signal back into a digital signal. This leads to conversion losses and lower
image quality. This is why almost all BenQ LC displays also have a digital DVI
port (see DVI port).
DVI port (digital)
If a display is connected to the computer by an analogue VGA D-sub port, it can result
in lower quality images. The digital signal of the computer is converted into an analogue
signal before transmission and then back into a digital signal in the monitor. Using DVI,
purely digital transmission means that no conversion of the signal is necessary, so opti-
mum picture quality is guaranteed.
1) DVI-D
This is a purely digital interface. This type of connection is becoming
standard on liquid crystal displays.
2) DVI-I
DVI-I processes both digital and analogue signals. With the help of an
adapter the display can also be operated by an analogue graphics card,
unlike DVI-D. Most graphics cards offer this interface if they are
equipped with DVI.
HDMI™ port
The HDMI™ port is a digital video interface that was specially developed for
the video sector. It is a particularly compact interface which also integrates
HDCP encryption. A particular advantage of this interface is the simplifica-
tion of the wiring, allowing, for example the wiring in series of individual
devices.
Video port (CVBS, or composite)
The interface known as CVBS (colour, video, blank and sync) or composite is stand-
ard for VHS and analogue TV. Colour and brightness signals, as well as synchronising
signals, are combined and then transmitted. Cinch connectors and SCART connectors,
used for video recorders and televisions, have become the standard connectors for the
transmission of CVBS video signals. If a flat screen display has a video port, a video
picture signal (from a DVD player, for example) can be directly displayed on the screen
without a PC. In terms of quality, a composite signal does not provide the best video
signal. Fuzzy contours and so-called ‘cross-colour effects’ may appear.
S-video port
The S-video port offers better image quality because it transmits brightness
(luminance) and colour (chroma) separately from one another. In terms of quality,
the output image from the S-video connection is similar to the image provided by
RGB transmission with a VGA port.
Ergonomics and safety
Low-quality displays or displays used incorrectly can quickly lead to user fatigue. High
contrast ratios and brightness values, along with a constant light density and no flick-
ering, affect both ergonomic properties and image quality. A monitor should be low-
radiation and free of toxins. The certificates listed below give you the assurance you
need in terms of ergonomics, product safety and environmental compatibility.
Important standards and certificates
Vista® Basic
The Vista® Basic logo indicates that a monitor is fully compatible with this operating
system. This means it must be possible to download the necessary driver software, for
example. The Vista® Basic logo ensures that installation will be problem-free and guar-
antees stable operation of the monitor.
Vista® Premium
The Vista® Premium logo entails further requirements to be fulfilled in addition to
the basic certificate. The monitor must have a digital interface, for example. This rules
out conversion losses during signal transmission from the computer to the monitor.
In addition, higher standards of colour fidelity for image reproduction are required,
in accordance with the Windows® standard. The monitor settings must also be able to
be adjusted using the computer through the DDC (Display Data Channel command
interface).
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