Lenovo ThinkVision E28u-20 User manual

ThinkVision E28u-20
User Guide
Machine Type: 62F9-GAR4-WW

Product No.
H22280UE0
62F9-GAR4-WW
Version 1 (November 2021)
All rights reserved Lenovo 2021
LENOVO products, data, computer software, and services are developed on earmarked funds and are sold to
government agencies as commodities as defined in 48 C.F.R. 2.101, with limited restricted rights of use,
duplication, and disclosure granted to the government agencies.
Restricted limited rights statement: If products, data, computer software, or services are delivered under a
General Services Manager "GSA" contract, their use, duplication, or disclosure is subject to the restrictions
outlined in Contract No. GS-35F-05925.

Contents
Safety Matters…………………………………………………………………………….……iv
General Safety Principles…………………………………….……………………….….…iv
TCO Certified…………………...…………………………….……………………….….…v
Chapter 1. New Member Guide…………………………………………………………….…1-1
Items List…………………………………………………………………………….……1-1
Precautions For Use…………………………………………………………………….…1-2
Product Overview…………………………………………………………………………1-3
Set Up the Display………………………………………………………………………...1-6
Chapter 2. Adjusting and Using the Display……………………………………………………2-1
Comfort and Assistance Functions………………………………………………….……..2-1
Arrange Your Working Area………………………………………………….…………...2-1
Placing and Viewing the Display……………………………………………………….…2-1
Tips on Healthy Work Habits…………………………………………………….…..……2-2
Adjusting the Display Image…………………………………………………..…….…….2-3
Select Supported Display Modes……………………………………………….…………2-6
Understanding Power Management……………………………………………….………2-7
Maintaining the Display…………………………………………………...………………2-8
Remove the Display Base and Support Arm…………………………….…………..……2-8
Wall-mounted (optional)………………………………………………………..…………2-8
Chapter 3. Reference Information……………………………………………………...………3-1
Display Specifications…………………………………………………………………….3-1
Troubleshooting…………………………………………………………………………..3-3
Manually Install the Driver for the Display………………………………………………3-5
Appendix A. Services and Support………………………………..…………….……………A-1
2

Telephone Technical Support………………………………………………………….……A-1
Appendix B. Declaration………………………………………………………………………B-1
Trademark……………………………………………………………………..……………B-2
Power Cord…………………..…………………………………………………..…………B-2
ⅲ

Safety Matters
General Safety Principles
For tips on safe computer use, please go to:
http://www.lenovo.com/safety
Before installing this product, please read the safety matters.
Avant d’installer ce produit, lisez les consignes de securite.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Πριν εγκαταστήσετε το προϊόν αυτό, διαβάστε τις πληροφορίες ασφάλειας (safety information).
ינפל.תוחיטבה תוארוה תא וארק ,הז רצומ וניקתהש
A termék telepítés előtt olvassa el a Biztonsági Tudnivalókat!
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Antes de instalar este produto, leia as Informações de Segurança.
Läs säkerhetsinformationen innan du installerar den här produkten.
Prije instaliranja ovog produkta obavezno pročitajte Sigurnosna Upute.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Przed zainstalowaniem tego produktu, należy zapoznać się z książka"Informacje dotyczące bezpieczeństwa"
(Safety Information).
Пред да се инсталира овој продykт, прочитајте информацијата за безбедност
Pred inštaláciou tohto zariadenia si prečítajte Bezpečnostné predpisy.
Pred namestitvijo tega proizvoda preberite Varnostne informacije.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet.
Před instalací tohoto produktu si přečtěte příslušné bezpečnostní instrukcí.
在安装本产品之前，请仔细阅读 Safety Information (安全信息)。
安裝本產品之前,請先閱讀「安全資訊」。

Læse sikkerhedsforskrifterne, før du installerer dette produkt.
製品の設置の前に、安全情報をお読みください。
본제품을 설치하기 전에 안전 정보를 읽으십시오。
Antes de instalar este producto lea la Información de seguridad.
Antes de instalar este produto, leia as Informações de Segurança.
Перед установкой продукта прочтите инструкции по безопасности.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Note: This equipment is not suitable for use in locations where children are likely to be present.
ⅳ

A third-party certification according to ISO 14024
Say hello to a more sustainable
product
IT products are associated with a wide range of sustainability risks throughout their life cycle.
Human rights violations are common in the factories. Harmful substances are used both in
products and their manufacture. Products can often have a short lifespan because of poor
ergonomics, low quality and when they are not able to be repaired or upgraded.
This product is a better choice. It meets all the criteria in TCO Certified, the world's most
comprehensive sustainability certification for IT products. Thank you for making a
responsible product choice, that help drive progress towards a more sustainable future!
Criteria in TCO Certified have a life-cycle perspective and balance environmental and social
responsibility. Conformity is verified by independent and approved verifiers that specialize
in IT products, social responsibility or other sustainability issues. Verification is done both
before and after the certificate is issued, covering the entire validity period. The process also
includes ensuring that corrective actions are implemented in all cases of factory non-
conformities. And last but not least, to make sure that the certification and independent
verification is accurate, both TCO Certified and the verifiers are reviewed regularly.
Want to know more?
Read information about TCO Certified, full criteria documents, news and updates at
tcocertified.com. On the website you'll also find our Product Finder, which presents a
complete, searchable listing of certified products.
v
Toward sustainable IT products

A third-party certification according to ISO 14024
Say hello to a more sustainable
product
IT products are associated with a wide range of sustainability risks throughout their life cycle. Human rights
violations occur in the supply chain. Harmful substances are used both in products and their manufacture.
Products can often have a short lifespan because of poor ergonomics, low quality and when they are not able
to be repaired or upgraded.
This product is a better choice. It meets all the criteria in TCO Certified, the world's most comprehensive
sustainability certification for IT products. Additionally, it fulfills the requirements of TCO Certified Edge,
the supplemental certification that recognizes leading-edge products that exceed typical performance in a
particular sustainability attribute. At our Product Finder (tcocertified.com/product-finder) you can find out
which TCO Certified Edge criterion or criteria this product meets.
Criteria in TCO Certified have a life-cycle perspective and balance environmental and social responsibility.
Compliance is verified by independent verification organizations that specialize in IT products, social
responsibility or other sustainability issues. Verification is done both before and after the certificate is issued,
covering the entire validity period. The process also includes ensuring that corrective actions are
implemented in all cases of factory non-conformities.
Thank you for making a responsible product choice, that help drive progress towards a more sustainable
future!
Want to know more?
Read information about TCO Certified, full criteria documents, news and updates at tcocertified.com. On
the website you'll also find our Product Finder, which presents a complete, searchable listing of certified
products.
v
Toward sustainable IT products

Chapter 1. New Member Guide
This user guide provides users with detailed operating instructions. For a quick
overview of the instructions, please refer to the Setup coloring page for brief
information.
Items List
The following items should be included in the package of this product:
■Quick Start Guide
■Display
■Stand
■Base
■Power Cord
■Signal Line
Chapter 1. New Member Guide 1-1

Precautions For Use
To set up your display, please refer to the following illustration.
Note: Do not touch the screen area of the display. The screen area is a glass product
and can be easily damaged by friction or pressure.
1. Place the display screen down on a soft flat surface.
2. Align the base with the stand, and then tighten the screws on the base.
3. Align the installed stand base to the back of the display and tighten the screws.
Note: To install the VESA mount, see "Wall-mounted (optional)" on pages 2-8.
Chapter 1. New Member Guide 1-2

Product Overview
This section describes how to adjust the display position, set the user controls, and use
the cable lock slot.
Adjustment Types
Tilt
Height
Adjustment
See the figure below for an example of the tilt range.
To adjust the height, the user needs to press or lift the display.
Chapter 1. New Member Guide 1-3

Rotate
Before the display is displayed in a vertical orientation, it should be fully raised
and fully tilted to avoid collisions.
Rotation
With the built-in base, you can tilt and rotate the monitor for the best viewing
angle.
Chapter 1. New Member Guide 1-4
Vertical
Rotation 90°
Horizontal
Rotation 360°

Display Control
Different functions can be used through the key controls on the panel frame.
For information on how to use these key controls, see "Adjusting the Display
Image" on pages 2-3.
Kensington anti-theft lock
Your display is equipped with a Kensington anti-theft lock, which is located on
the back of the display.
Chapter 1. New Member Guide 1-5

Set Up the Display
This section describes how to set up the display.
Connecting and Powering on the Display
Note: Before performing this procedure, be sure to read the "Safety Matters" on
page iv.
1. Turn off the power to the computer and all connected devices, and then
unplug the computer's power cord.
2. Connect the cables as shown in the figure below.
Chapter 1. New Member Guide 1-6

3. For computers with VGA connections.
Note: Lenovo recommends that users who need to use the HDMI input on their
display purchase the "Lenovo HDMI to HDMI Cable OB47070"
www.lenovo.com/support/monitoraccessories
4. For computers with DP connections.
Chapter 1. New Member Guide 1-7

5. Connect the audio cable of the speaker and the audio jack of the monitor to
transmit the audio source from HDMI or DP.
Note: HDMI or DP mode audio output.
6. Plug the power cord into the display, and then plug the display power cord
and computer cord into a grounded power outlet.
Note: A certified power cord must be used for this equipment. The installation
and/o r equipment regulations of the country concerned should be taken into
account. The certified power cable used should not be lighter than the normal
PVC cable (marked H05VV-F 3G 0.75mm2or H05VVH2-F2 3G 0.75mm2) as
specified in IEC 60227. In addition, synthetic rubber cords as specified in IEC
60245 (marked H05RR-F 3G 0.75mm2) should be used.
Chapter 1. New Member Guide 1-8

7. Turn on the power to the display and computer.
8. When you install the display driver, download the driver that corresponds
to your display model from the Lenovo website at
http://support.lenovo.com.cn/docs/E28u_20. To install the driver, see the
"Manually Install the Driver for the Display" section on pages 3-5.
Chapter 1. New Member Guide 1-9

Chapter 2. Adjusting and Using the Display
This section describes how to adjust and use this display.
Comfort and Assistance Functions
Good ergonomic designs are important for the comfortable use of your personal
computer. Your workplace and the equipment you use should be arranged
appropriately for your personal needs and the type of work you do. In addition,
healthy work habits can help you achieve optimal efficiency and comfort when using
a computer.
Arrange Your Working Area
Use a work surface of the right height and enough work area so that you can work
comfortably.
Arrange your work area according to the way you use materials and equipment. Keep
frequently used materials neatly organized in your work area, and place frequently
used items (such as a computer mouse or telephone) in an easily accessible location.
The placement and setup of equipment are very important to your work posture. The
following topics describe how to optimize equipment settings to achieve and maintain
a good working posture.
Placing and Viewing the Display
For comfortable viewing of the display, the following factors should be considered
when placing and adjusting computer displays:
Viewing Distance: The recommended viewing distance between your eyes
and the display screen is 1.5X the screen diagonal. Solutions to meet this
required distance in a small office include: keeping the desk a certain distance
from the wall or partition to allow space for the display, using a flat panel or
smaller display and keeping the display in the corner of the desk, or placing
the keyboard in an adjustable drawer board to create a deeper work surface.
Display Height: If your display is not height-adjustable, place your head and
neck in a natural, comfortable (vertical or upright) position. If your display is
not height-adjustable, you can place a book or other sturdy object under the
base of the display to achieve the desired height. The general rule is to sit
comfortably with the top of the display screen at eye level or slightly lower.
However, it is important to optimize the height of the display so that the
relative position between the eyes and the center of the display provides the
right visual distance and a comfortable viewing experience when the eye
muscles are relaxed.
Tilt: Adjusting the tilt of your display optimizes the appearance of your screen
content and keeps your head and neck in the best possible position.
Regular Location: Place the display in such a way that overhead lighting or
nearby windows do not cause glare or reflection on the screen.
Chapter 2. Adjusting and Using the Display 2-1

Here are some additional tips for comfortable viewing of your display：
• Use adequate lighting for the type of work you do.
• Use display brightness, contrast, and image controls (if available) to optimize the
image on the screen for your visual needs.
• Keep the display screen clean so that you can see the content clearly.
Long periods of focused visual activity tend to strain the eyes. Be sure to periodically
move away from the display screen and gaze at a distant object to relax your eye
muscles. If you have any questions about eye strain or visual discomfort, consult
vision care professional for advice.
Tips on Healthy Work Habits
The following is a summary of some important factors that are useful to keep you
comfortable and productive while using your computer.
Good posture comes from equipment placement: The layout of your work area
and the placement of your computer equipment can have a significant impact
on your posture while using the computer. Be sure to follow the tips listed in "
Arrange Your Working Area" on pages 2-1 to optimize the placement and
orientation of your equipment so you can maintain comfortable posture and
efficiency. In addition, be sure to use the adjustment features of your computer
components and office furniture to meet your needs, and adjust them over time
as your needs change.
Slight changes in posture help keep you comfortable: the longer you sit in
front of a computer, the more important it becomes to pay attention to your
work posture. Avoid maintaining one posture for long periods. Regular slight
changes in posture can help prevent possible discomfort. Use the adjustment
function provided by office furniture or equipment to adapt to changes in
posture.
Regular short breaks help ensure healthy computing: Because computing is
primarily a static activity, it is especially important to take short breaks during
the workday. Take regular breaks to stand in front of your work area, stretch
your limbs, walk around or have a drink, or otherwise take a short break from
using the computer. Taking short breaks during work allows for changes in
body posture that can help you stay comfortable and productive while
working.
Accessibility Information
Lenovo is committed to providing greater access to information and technology for
people with disabilities. With assistive technologies, users with disabilities can access
information most appropriate for their specific situation. Some of these technologies
are already available in the operating system; others can be purchased through
resellers or by visiting the following website: https://lenovo.ssbbartgroup.com
Chapter 2. Adjusting and Using the Display 2-2

Adjusting the Display Image
This section describes the functions of the user controls used to adjust the display
image.
Using Direct Access Controls
When On Screen Display (OSD) is not displayed, you can use direct access
controls.
Icon
Control
Description
1
Power
Power on/off
2
Menu
To access the OSD menu
Press to confirm the selection
Press and hold for 10 seconds to lock the menu/unlock the
menu
Enter
Press to go to the next level/submenu status of the main
menu, or the previous level of the adjustment bar
3
Enable low blue light
Press and hold for 3 seconds to enable low blue light
Disable low Blue light
Press and hold for 3 seconds to disable low blue light
Brightness
Brightness adjustment
Up/Right/
Increase
Downward Browsing Key
Increase the value on the adjustment bar/Adjustment
Press down to move to the next item
4
Volume
Adjust the volume level
Down/Left/
Decrease
Upward Browsing Key
Decrease the value on the adjustment bar/Adjustment
Press down to move to the previous item
5
Input source
Signal source switching
Return to previous level in OSD mode
DDC-CI
Press and hold for 10 seconds to enable/disable the DDC-CI
function.
Exit
Exit Menu
Attention:
The E28u-20 uses natural low blue light technology to protect your eyes by not only maintaining picture
quality but also reducing harmful blue light at 6500K color temperature. If you cannot confirm whether the
monitor is already in low blue light mode, you can perform the Restore Factory Settings operation in the
OSD Item Menu Settings → Reset All Settings.
Chapter 2. Adjusting and Using the Display 2-3

Use the On-Screen Display (OSD) Control
When adjusting the settings, you can view the user controls through the OSD.
Use controls:
1. Press to open the OSD Main Menu.
2. Use or to move between icons. Select an icon and press to access
the feature. If there is a submenu, use or to move between options, and then
press to select the feature. Use or to make adjustments, and then press to
save.
3. Press to exit the submenu in sequence, and then exit the OSD.
4. Press and hold for 10 seconds to lock the OSD. In this way, you can prevent
accidental adjustment of the OSD. Press and hold for 10 seconds to unlock the OSD
for OSD adjustment.
5. DDC/CI is enabled by default. Press and hold for 10 seconds to disable/enable
the DDC/CI function. The message "DDC/CI disable (DDC/CI enable)" is displayed on
the screen.
6. The ENERGY STAR option restores all user settings to their default values to make
the display Energy Star compliant.
ENERGY STAR is a consumer electronics energy efficiency program led by the U.S.
government. It was launched at the Department of Energy to reduce energy consumption
and greenhouse gas emissions. The ENERGY STAR logo is a symbol of energy
efficiency and environmental protection. It has improved the concept of energy
efficiency among consumers and manufacturers, and effectively guided the market. The
“ENERGY STAR Regulations” improve energy efficiency and reduce air pollution
through the use of more energy-efficient equipment in homes, offices, and factories. One
way to achieve this goal is to use management to reduce energy consumption when
products are not in use. The default settings of the monitor are ENERGY STAR
qualified. Any changes made by the user to more features and functions can increase
power consumption, which would exceed the limits of the ENERGY STAR standard. If
the user changes options related to energy efficiency while in use, such as brightness,
color mode, etc., selecting Reset Factory All or selecting the ENERGY STAR option
will restore energy consumption to ENERGY STAR-compliant energy efficiency.
For more information, see (www.enercystar.gov/products). All ENERGY STAR
products will be posted online and directly accessible to governments, public agencies,
and consumers.
Chapter 2. Adjusting and Using the Display 2-4