DL Series

LCD Monitor
User Manual
Copyright
Copyright 2016 by BenQ Corporation. All rights reserved. No part of this publication may
be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any
language or computer language, in any form or by any means, electronic, mechanical, magnetic,
optical, chemical, manual or otherwise, without the prior written permission of BenQ
Corporation.

Disclaimer
BenQ Corporation makes no representations or warranties, either expressed or implied, with
respect to the contents hereof and specifically disclaims any warranties, merchantability or
fitness for any particular purpose. Further, BenQ Corporation reserves the right to revise this
publication and to make changes from time to time in the contents hereof without obligation of
BenQ Corporation to notify any person of such revision or changes.

The performance of flicker-free may be affected by external factors such as poor cable quality,
unstable power supply, signal interference, or poor grounding, and not limited to the above
mentioned external factors. (Applicable for flicker-free models only.)

Power Safety
Please follow these safety instructions for best performance, and long life for your monitor.

The AC plug isolates this equipment from the AC supply.

The power supply cord serves as a power disconnect device for pluggable equipment. The
socket outlet should be installed near the equipment and be easily accessible.
This product should be operated from the type of power indicated on the marked label. If you
are not sure of the type of power available, consult your dealer or local power company.
An approved power cord greater or equal to H03VV-F or H05VV-F, 2G or 3G, 0.75mm2 must
be used.

Care And Cleaning

Cleaning. Always unplug your monitor from the wall outlet before cleaning. Clean the LCD
monitor surface with a lint-free, non-abrasive cloth. Avoid using any liquid, aerosol or glass
cleaners.
Slots and openings on the back or top of the cabinet are for ventilation. They must not be
blocked or covered. Your monitor should never be placed near or over a radiator or heat
source, or in a built-in installation unless proper ventilation is provided.
Never push objects or spill liquid of any kind into this product.

2
Servicing
Do not attempt to service this product yourself, as opening or removing covers may expose
you to dangerous voltages or other risks. If any of the above mentioned misuse or other
accident such as dropping or mishandling occurs, contact qualified service personnel for
servicing.

BenQ ecoFACTS
BenQ has been dedicated to the design and development of greener product as part of its
aspiration to realize the ideal of the "Bringing Enjoyment 'N Quality to Life" corporate vision
with the ultimate goal to achieve a low-carbon society. Besides meeting international regulatory
requirement and standards pertaining to environmental management, BenQ has spared no
efforts in pushing our initiatives further to incorporate life cycle design in the aspects of
material selection, manufacturing, packaging, transportation, using and disposal of the products.
BenQ ecoFACTS label lists key eco-friendly design highlights of each product, hoping to ensure
that consumers make informed green choices at purchase. Check out BenQ's CSR Website at
http://csr.BenQ.com/ for more details on BenQ's environmental commitments and
achievements.

3
 Table of Contents
Copyright ......................................................................................................................................2
Getting started .............................................................................................................................5
Getting to know your monitor ................................................................................................7
Front view.................................................................................................................................................... 7
Back view ..................................................................................................................................................... 7
How to assemble your monitor hardware ...........................................................................8
How to detach the stand base .............................................................................................................. 11
Using the monitor wall mounting kit ................................................................................................... 12
Getting the most from your BenQ monitor ...................................................................... 13
Downloading the LCD Monitor driver files from the Internet..................................................... 13
How to install the monitor on a new computer .............................................................................. 14
How to upgrade the monitor on an existing computer ................................................................. 15
How to install on Windows 8 (8.1) system ....................................................................................... 16
How to install on Windows 7 system ................................................................................................ 17
How to adjust your monitor ................................................................................................. 18
The control panel..................................................................................................................................... 18
Picture optimization ................................................................................................................................ 19
Adjusting display mode ........................................................................................................................... 19
Navigating the main menu ...................................................................................................... 20
Troubleshooting ....................................................................................................................... 22
Frequently asked questions (FAQ) ...................................................................................................... 22
Need more help?...................................................................................................................................... 23
Adjusting the screen resolution ............................................................................................ 24
Adjusting the screen refresh rate ......................................................................................... 25
Preset display modes ............................................................................................................... 26
Specifications - DL2020 .......................................................................................................... 27

4
Getting started
When unpacking please check you have the following items. If any are missing or damaged,
please contact the place of purchase for a replacement.

BenQ LCD Monitor

Monitor Stand

Monitor Base

Quick Start Guide

Regulatory Notices

Power Cord
(Picture may differ from product supplied
for your region.)

Video Cable: D-Sub

Getting started 5
 Video Cable: DVI-D
(Optional accessory)

Available accessories and the pictures shown here may differ from the actual contents and the product supplied
for your region. For cables that are not supplied with your product, you can purchase them separately.
Consider keeping the box and packaging in storage for use in the future when you may need to transport the
monitor. The fitted foam packing is ideal for protecting the monitor during transport.

Always keep the product and accessories out of reach of small children.

6 Getting started
Getting to know your monitor
Front view
1. Control buttons
2. Power button

1 2

Back view
3. AC power input jack
4. Quick release button
5. DVI-D socket
6. D-Sub socket
7. Kensington lock slot

3 4 5 6 7

Above diagram may vary depending on the model.

Picture may differ from product supplied for your region.

Getting to know your monitor 7

How to assemble your monitor hardware
If the computer is turned on you must turn it off before continuing.
Do not plug-in or turn-on the power to the monitor until instructed to do so.
The following illustrations are for your reference only. Available input and output jacks may vary depending on
the purchased model.

1. Attach the monitor base.

Please be careful to prevent damage to the monitor. Placing the screen surface on an object like a stapler or a
mouse will crack the glass or damage the LCD substrate voiding your warranty. Sliding or scraping the monitor
around on your desk will scratch or damage the monitor surround and controls.
Protect the monitor and screen by clearing a flat open
area on your desk and placing a soft item like the
monitor packaging bag on the desk for padding.
Gently lay the screen face down on a flat clean padded
surface.
Attach the monitor stand to the monitor base as
illustrated until it locks in place.
Gently attempt to pull them back apart to check that
they have properly engaged.
Orient and align the stand base socket with the end of
the stand arm, then push them together until they click
and lock into place.

Gently attempt to pull them back apart to check that

they have properly engaged.

Carefully lift the monitor, turn it over and place it

upright on its stand on a flat even surface.

8 How to assemble your monitor hardware

 You should position the monitor and angle the screen to
minimize unwanted reflections from other light sources.
-4 ~ +22
O O

2. Connect the PC video cable. Either

Do not use both DVI-D cable and D-Sub cable on the same
PC. The only case in which both cables can be used is if they
are connected to two different PCs with appropriate video
systems.
To Connect the D-Sub Cable
Connect the plug of the D-Sub cable (at the end
without the ferrite filter) to the monitor video socket.
Connect the other end of the cable (at the end with the
ferrite filter) to the computer video socket.
Tighten all finger screws to prevent the plugs from
accidently falling out during use.
To Connect the DVI-D Cable Or
Connect the plug of the DVI-D cable (at the end
without the ferrite filter) to the monitor video socket.
Connect the other end of the cable (at the end with the
ferrite filter) to the computer video socket.
Tighten all finger screws to prevent the plugs from
accidently falling out during use.

The video cables included in your package and the socket

illustrations on the right may vary depending on the product
supplied for your region.

3. Connect the power cable to the monitor.

Plug one end of the power cord into the socket labelled
on the rear of the monitor. Do not connect the
other end to a power outlet just yet.

How to assemble your monitor hardware 9

 4. Connect-to and turn-on the power.
Plug the other end of the power cord into a power
outlet and turn it on.

Picture may differ from product supplied for your region.

Turn on the monitor by pressing the power button on

the monitor.
Turn on the computer too, and follow the instructions
in Getting the most from your BenQ monitor on page
13 to install the monitor software.

To extend the service life of the product, we recommend

that you use your computer's power management function.

10 How to assemble your monitor hardware

 How to detach the stand base
1. Prepare the monitor and area.
Turn off the monitor and the power before unplugging
the power cable. Turn off the computer before
unplugging the monitor signal cable.
Protect the monitor and screen by clearing a flat open
area on your desk and placing a soft item like a towel on
the desk for padding, before laying the screen face down
on a flat clean padded surface.

Please be careful to prevent damage to the monitor. Placing

the screen surface on an object like a stapler or a mouse will
crack the glass or damage the LCD substrate voiding your
warranty. Sliding or scraping the monitor around on your
desk will scratch or damage the monitor surround and
controls.

2. Press the locking clips to detach the

monitor base from the monitor stand arm.
2
While pressing the locking clips on the bottom of the
monitor base, push the monitor base away from the
monitor stand by the other hand.
1

3. Remove the monitor stand.

While pressing and holding the quick release button
1
( ), detach the stand from the monitor ( ).

How to assemble your monitor hardware 11

 Using the monitor wall mounting kit
The back of your LCD monitor has a VESA standard mount with 100mm pattern, allowing the
installation of a wall mount bracket. Before starting to install a monitor wall mounting kit,
please read the precautions carefully.

Precautions
Install your monitor and monitor mounting kit on a wall with flat surface.
Ensure that the wall material and the standard wall mount bracket (purchased separately) are
stable enough to support the weight of the monitor. Refer to the product specifications for
weight information.
Turn off the monitor and the power before disconnecting the cables from the LCD monitor.

1. Remove the monitor stand.

Lay the screen face down on a clean and well-padded
surface.
Detach the monitor stand as instructed in How to
detach the stand base on page 11.

2. Follow the instruction manuals of the wall

mount bracket you purchased to complete
the installation.

Use four M4 x 10 mm screws to fix a VESA standard wall

mount bracket to the monitor. Make sure that all screws are
tightened and secured properly. Consult a professional
technician or BenQ service for wall mount installation and
safety precautions.

12 How to assemble your monitor hardware

Getting the most from your BenQ monitor
To gain the most benefit from your new BenQ LCD monitor, you should install the custom
BenQ LCD Monitor driver software as provided on the BenQ local website. See Downloading
the LCD Monitor driver files from the Internet on page 13 for details.

The circumstances under which you connect and install your BenQ LCD Monitor will
determine which process you need to follow to successfully install the BenQ LCD Monitor
driver software. These circumstances relate to which version of Microsoft Windows you are
using, and whether you are connecting the monitor and installing the software onto a new
computer (without existing monitor driver software), or whether you are upgrading an existing
installation (which already has existing monitor driver software) with a newer monitor.

In either case however, the very next time you turn on your computer (after connecting the
monitor to your computer), Windows will automatically recognize the new (or different)
hardware, and will launch its Found New Hardware wizard.

Follow the wizard instructions. Further details and step-by-step instructions for either an
automatic (new) or upgrade (existing) installation, see:

How to install the monitor on a new computer on page 14.

How to upgrade the monitor on an existing computer on page 15.
If you require a User Name and Password to login to your Windows computer, you must be logged on as an
Administrator or as a member of the Administrators group in order to install the monitor driver software.
Furthermore, if your computer is connected to a network which has security access requirements, network
policy settings may prevent you from installing software on your computer.
To check the name of the purchased model, refer to the specification label on the back of the monitor.

Downloading the LCD Monitor driver files from the Internet

1. Make sure your computer is connected to the Internet.
2. Visit the BenQ local website.
3. Download the correct driver files through the selection of product name, model name,
and file category. The website layout and content may vary by region/country.
4. On your computer, have your driver files extracted into an empty folder. Remember the
file location the files are extracted to.

Getting the most from your BenQ monitor 13

 How to install the monitor on a new computer
This instruction details the procedure for selecting and installing the BenQ LCD Monitor driver
software on a new computer which has never had a monitor driver installed before. This
instruction is only suitable for a computer which has never been used before, and for which the
BenQ LCD Monitor is the first ever monitor to be connected to it.

If you are adding the BenQ LCD Monitor to an existing computer that has already had another monitor
connected to it (and has monitor driver software installed), you should not be following these instructions. You
should instead be following the instructions for How to upgrade the monitor on an existing computer.

1. Follow the instructions in How to assemble your monitor hardware on page 8.

When Windows starts, it will automatically detect the new monitor and launch the Found New
Hardware Wizard. Follow the prompts until it displays the option to Install Hardware Device
Drivers.
2. Check Search for a suitable driver for my device option, and click Next.
3. Look to confirm that the wizard has selected the correct name of your monitor and click
Next.
4. Click Finish.
5. Restart the computer.

14 Getting the most from your BenQ monitor

How to upgrade the monitor on an existing computer
This instruction details the procedure for manually updating the existing monitor driver
software on your Microsoft Windows computer. It is currently tested as compatible for
Windows 8.1, Windows 8, and Windows 7 Operating System (OS).

The BenQ LCD Monitor driver for your model may well function perfectly with other versions of Windows,
however, as at the time of writing, BenQ has done no testing of this driver on other versions of Windows and
cannot guarantee its operation on those systems.

Installing monitor driver software involves selecting an appropriate information file (.inf) from
the downloaded driver files for the particular model monitor you have connected, and letting
Windows install the corresponding driver files. You need only steer it in the right direction.
Windows has an Upgrade Device Driver Wizard to automate the task and guide you through
the file selection and installation process.

See:

How to install on Windows 8 (8.1) system on page 16

How to install on Windows 7 system on page 17.

Getting the most from your BenQ monitor 15

 How to install on Windows 8 (8.1) system
1. Open Display Properties.
Move the cursor to the lower-right of the screen or press the Windows + C buttons on the
keyboard to bring up the Charm bar. Go to Settings, Control Panel, Devices and Printers
and right-click the name of your monitor from the menu.
Alternatively, right-click the desktop and select Personalize, Display, Devices and Printers,
and right-click the name of your monitor from the menu.
2. Select Properties from the menu.
3. Click the Hardware tab.
4. Click Generic PnP Monitor, and then the Properties button.
5. Click the Driver tab and the Update Driver button.
6. In the Update Driver Software window, select the option Browse my computer for
driver software.
7. Click Browse and locate the driver files downloaded from the Internet as instructed in
Downloading the LCD Monitor driver files from the Internet on page 13.
8. Click Close.
You may be prompted to restart your computer after the driver update is complete.

16 Getting the most from your BenQ monitor

How to install on Windows 7 system
1. Open Display Properties.
Go to Start, Control Panel, Hardware and Sound, Devices and Printers and right-click the
name of your monitor from the menu.
Alternatively, right-click the desktop and select Personalize, Display, Devices and Printers,
and right-click the name of your monitor from the menu.
2. Select Properties from the menu.
3. Click the Hardware tab.
4. Click Generic PnP Monitor, and then the Properties button.
5. Click the Driver tab and the Update Driver button.
6. In the Update Driver Software window, select the option Browse my computer for
driver software.
7. Click Browse and locate the driver files downloaded from the Internet as instructed in
Downloading the LCD Monitor driver files from the Internet on page 13.
8. Click Close.
You may be prompted to restart your computer after the driver update is complete.

Getting the most from your BenQ monitor 17

How to adjust your monitor
The control panel
All OSD (On Screen Display) menus can be accessed by the control keys. You can use the OSD
menu to adjust all the settings on your monitor.

1 2 3 4 5 6

No. Name Description

1. AUTO Adjusts vertical position, phase, horizontal position and pixel

clock automatically.
2. EXIT Exits OSD menu.
Returns to the previous menu.
The key is the hot key for Input Select.
3. For Left/Decrease adjustment.
The key is the hot key for ECO.
4. For Right/Increase adjustment.
The key is the hot key for Brightness.
5. ENTER Activates the main menu.
Enters sub menus.
Selects menu items.
6. Power key Turns the power on or off.

OSD = On Screen Display.

The hot keys only operate while the main menu is not currently displaying. Hot key displays will disappear after a
few seconds of no key activity.

18 How to adjust your monitor

Picture optimization
The easiest way to obtain an optimal display from an analog (D-Sub) input is to use the Auto
Adjust function. Go to Auto Adjust to optimize the currently displayed image to the screen.

When you connect a digital input signal using a digital (DVI) cable to your monitor, the Auto Adjust function will
be disabled, because the monitor will automatically display the best image.

Please ensure that the connected graphic card on your computer is set to the native resolution of the monitor
when you use the Auto Adjust function.

If you wish, you can always adjust the screen geometric settings manually using geometry menu
items. To assist you in this endeavour, BenQ has provided a screen test image utility which you
can use to check for screen color, grayscale and line gradient display. The utility is available on
the BenQ website. Follow Step 1 to Step 5 in Downloading the LCD Monitor driver files from
the Internet on page 13, and then download the test program auto.exe from Drivers to your
computer.

1. Run the test program auto.exe. You could also use any other image, such as the desktop of
your operating system. However, we recommend that you use auto.exe. As you run
auto.exe, a test pattern displays.
2. Press AUTO key on the monitor.
3. Press the ENTER key to access the monitor On-Screen Display (OSD) menu.
4. Go to Geometry.
5. If you notice a vertical noise (like a curtain effect-shimmering of vertical lines), select Pixel
Clock and adjust the monitor until the noise disappears.
6. If you notice a horizontal noise, select Phase and adjust the monitor until the noise
disappears.

Adjusting display mode

To display images of aspect ratio other than 16:9 and size other than the panel size of your
purchased model, you can adjust the display mode on the monitor.

1. Press the ENTER key to access the monitor On-Screen Display (OSD) menu.
2. Go to Miscellaneous and Display Mode.
3. Select an appropriate display mode. The setting will take effect immediately.

How to adjust your monitor 19

Navigating the main menu
You can use the OSD (On Screen Display) menu to adjust all the settings on your monitor.

Available menu options may vary depending on the input sources, functions and settings. Menu
options that are not available will become grayed out. And keys that are not available will be
disabled and the corresponding OSD icons will disappear.

The OSD menu languages may differ from the product supplied to your region, see Language on page 21 for
more details.
1. Press the ENTER key to display the main menu.
2. Press the or keys to move the highlight to a menu item and then press the
ENTER key to select that item.

3. Press the or keys to make adjustments or selections.

4. To return to the previous menu, press the EXIT button.
5. To exit the menu, select EXIT.

Menu Function

Optimizes and adjusts the screen settings automatically for you.

Auto Adjust
Not applicable to a digital input signal.

Brightness Adjusts the balance between light and dark shades.

Luminance Contrast Adjusts the degree of difference between darkness
and lightness.
H. Position Adjusts the horizontal position of the screen image.
Geometry V. Position Adjusts the vertical position of the screen image.
Pixel Clock Adjusts the pixel clock frequency timing to
synchronize with the analog input video signal.
See also: Picture optimization on page 19.

Not applicable to a digital input signal.

Phase Adjusts the pixel clock phase timing to synchronize

with the analog input video signal.
See also: Picture optimization on page 19.

Not applicable to a digital input signal.

20 Navigating the main menu

 Menu Function

9300K Applies a cool tint to the image and is factory

pre-set to the PC industry standard white color.
Color
7500K Allows video and still photographs to be viewed with
natural coloring. This is the factory default color.
6500K Applies a warm tint to the image and is factory
pre-set to the news print standard white color.
User Preset The blend of the Red, Green and Blue primary
colors can be altered to change the color tint of the
image. Go to the succeeding Red, Green, and Blue
menus to change the settings.
Decreasing one or more of the colors will reduce
their respective influence on the color tint of the
image. (e.g. if you reduce the Blue level the image
will gradually take on a yellowish tint. If you reduce
Green, the image will become a magenta tint.)
H. Position Adjusts the horizontal position of the OSD menu.
OSD V. Position Adjusts the vertical position of the OSD menu.
OSD Time Adjusts the display time of the OSD menu.
Sets the OSD menu language.
Language

Resets all mode, color and geometry settings to the factory default
values.
Recall

Sharpness Adjusts the clarity and visibility of the edges of the

subjects in the image.
Miscellaneous
DDC/CI Allows the monitor settings to be set through the
software on the PC.
Display Displays the current monitor property settings.
Information

Display Mode This feature is provided to allow aspect ratios other

than 16:9 to be displayed without geometric
distortion.
Opening Logo Sets whether to show the BenQ logo when the
monitor is turned on.
Use this to change the input to that appropriate to your video cable
connection type.
Input Select

Navigating the main menu 21

Troubleshooting
Frequently asked questions (FAQ)

The image is blurred.

Read the instructions in Adjusting the screen resolution on page 24, and then select the
correct resolution, refresh rate and make adjustments based on these instructions.

How do you use a VGA extension cable?

Remove the extension cable for the test. Is the image now in focus? If not, optimize the image
by working through the instructions in Adjusting the screen refresh rate on page 25. It is
normal for blurring to occur due to conduction losses in extension cables. You can minimize
these losses by using an extension cable with better conduction quality or with a built-in
booster.

Does the blurring only occur at resolutions lower than the native (maximum) resolution?

Read the instructions in Adjusting the screen resolution on page 24. Select the native
resolution.
Pixel errors can be seen.
One of several pixels is permanently black, one or more pixels are permanently white, one or
more pixels are permanently red, green, blue or another color.
Clean the LCD screen.
Cycle power on-off.
These are pixels that are permanently on or off and is a natural defect that occurs in LCD
technology.

The image has a faulty coloration.

It has a yellow, blue or pink appearance.
Go to Recall to reset the color settings to the factory defaults.
If the image is still not correct and the OSD also has faulty coloration, this means one of the
three primary colors is missing in the signal input. Now check the signal cable connectors. If
any pin is bent or broken off, please contact your dealer to get necessary support.

No image can be seen.

Is the prompt on the display illuminated in blue?
If the LED is illuminated in blue and there is a message Out of Range on the screen, this
means you are using a display mode that this monitor does not support, please change the
setting to one of the supported mode. Please read Preset display modes on page 26.

Faint shadow from the static image displayed is visible on the screen.
Activate the power management function to let your computer and monitor go into a low
power "sleep" mode when not actively in use.
Use a screensaver to prevent the occurrence of image retention.

22 Troubleshooting
Is the prompt on the display illuminated in blue?
If the LED is illuminated in blue, the power management mode is active. Press any button on
the computer keyboard or move the mouse. If that does not help, check the signal cable
connectors. If any pin is bent or broken off, please contact your dealer to get necessary
support.

Is the prompt on the display not illuminated at all?

Check the power supply mains socket, the external power supply and the mains switch.

The image is distorted, flashes or flickers.

Read the instructions in Adjusting the screen resolution on page 24, and then select the
correct resolution, refresh rate and make adjustments based on these instructions.

You are running the monitor at its native resolution, but the image is still distorted.
Images from different input sources may appear distorted or stretched on the monitor running
at its native resolution. To have the optimal display performance of each type of input sources,
you can use the Display Mode function to set a proper aspect ratio for the input sources. See
Adjusting display mode on page 19 for details.

The image is displaced in one direction.

Read the instructions in Adjusting the screen resolution on page 24, and then select the
correct resolution, refresh rate and make adjustments based on these instructions.

Need more help?

If your problems remain after checking this manual, please contact your place of purchase or
visit the local website from www.BenQ.com for more support and local customer service.

Troubleshooting 23
Adjusting the screen resolution
Due to the nature of liquid crystal display (LCD) technology, the picture resolution is always
fixed. For the best display performance, please set the display to its maximum resolution that is
the same with the monitor aspect ratio. This is called Native Resolution or maximal resolution
that is, the clearest picture. Please refer to the table below for the native resolution of your
LCD. Lower resolutions are displayed on a full screen through an interpolation circuit. Image
blurring across pixel boundaries can occur with the interpolated resolution depending upon the
image type and its initial resolution.

Panel type Display size Aspect ratio Native Resolution

TN panel 19.5" 16:9 1366 x 768

To find out the monitor aspect ratio of the purchased model, please check the Specification document on the
provided CD.
To take full advantage of LCD technology you should select the native resolution setting of your PC screen as
described below. Be aware that not all PC video cards provide this resolution value. If yours doesn't, check
with the video card manufacturer's website for an updated driver for your particular model PC video card
which supports this resolution. Software video drivers are often updated and available for new hardware video
resolutions. If necessary, you may need to replace and update the PC video card hardware to be able to
support the native resolution of the monitor.
Depending on the operating system on your PC, different procedures should be followed to adjust the screen
resolution. Refer to the help document of your operating system for details.
1. Open Display Properties and select the Settings tab.
You can open Display Properties by right-clicking on the Windows desktop and selecting
Properties from the pop-up menu.
2. Use the slider in the Screen area section to adjust the screen resolution.
Select the recommended resolution (maximum resolution) then click Apply.

If you select some other resolution, be aware that this other resolution is interpolated and may not accurately
display the screen image as well as it could do at the native resolution setting.

3. Click OK then Yes.

4. Close the Display Properties window.
If your input source does not provide an image which is the same with the monitor aspect ratio,
the displayed image may appear stretched or distorted. To maintain the original aspect ratio,
image scaling options can be found in the Display Mode adjustment. See the user manual for
more information.

24 Adjusting the screen resolution

Adjusting the screen refresh rate
You dont have to choose the highest possible refresh rate on an LCD display, because it is not
technically possible for an LCD display to flicker. The best results are obtained by using the
factory modes already set in your computer. Check next chapter to see the factory modes: Preset
display modes on page 26.

Depending on the operating system on your PC, different procedures should be followed to adjust the screen
resolution. Refer to the help document of your operating system for details.

1. Double click the Display icon in Control Panel.

2. From the Display Properties window, select the Settings tab and click the Advanced
button.
3. Select the Adapter tab, and select an appropriate refresh rate to match one of the
applicable factory modes as listed in the specification table.
4. Click Change, OK, then Yes.
5. Close the Display Properties window.

Adjusting the screen refresh rate 25

Preset display modes
Incoming display mode (Input timing)

Panel type TN panel

Display size 19.5"

Resolution 1366 x 768

Aspect ratio 16:9

640x480@60Hz v

640x480@75Hz v

720x400@70Hz v
800x600@60Hz v

800x600@75Hz v

832x624@75Hz v

1024x768@60Hz v

1024x768@75Hz v

1280x720@60Hz v

1366x768@60Hz v

For 18.5-inch models, pay attention to the following:

For the first time using this monitor with the resolution 1360x768, the default Display Mode is Aspect.
If the video card cannot display or normally display with the native resolution of 1366x768, please adjust the
resolution to 1360x768.

Image disruption may occur as a result of signal frequency differences from graphic cards which
do not correspond with the usual standard. This is not, however, an error. You may improve this
situation by altering an automatic setting or by manually changing the phase setting and the pixel
frequency from the DISPLAY menu.

26 Preset display modes

Specifications - DL2020

Display type 19.5", LED backlight monitor

Panel type TN panel
Display area 434 x 235.8 mm
Native (maximum) resolution 1366 x 768
Aspect ratio 16:9
Colors 16.7 million
Contrast / Brightness 600:1 / 200 cd/m2 (typical)
Response time 5 ms
Viewing angle (left/right, up/down) 90, 65 (CR>10)
Hor. Frequency (KHz) 30 - 83 kHz Multi- frequency monitor
Ver. Frequency (Hz) 55 - 76 Hz modes within these parameters
Controls 5 buttons and Power key
Max. power consumption < 22 W
Power saving mode < 0.5 W
Input signal D-Sub + DVI
Temperature (operating) 0 C - 40 C
Air humidity (operating) 10% - 90%
Operating voltage 100-240 V, 50/60 Hz +/- 3 Hz
Dimensions (H x W x D) 360.5 x 469.7 x 192.9 mm
Weight 2.5 kg

The specifications are subject to change without prior notice.

Specifications - DL2020 27