Lenovo C27-40 User Manual

Chapter 2 Adjusting and using your monitor 2-9
Selecting a supported display mode
The display mode the monitor uses is controlled by the computer. Therefore, refer to your computer documentation
for details on how to change display modes.
The image size, position and shape might change when the display mode changes. This is normal and the image
can be readjusted using automatic image setup and the image controls.
Unlike CRT monitors, which require a high refresh rate to minimize flicker, LCD or Flat Panel technology is
inherently flicker-free.
Note: If your system has previously been used with a CRT monitor and is currently configured to a display mode
outside the range of this monitor, you may need to re-attach the CRT monitor temporarily until you have re-
configured the system; preferably to 1920x1080 at 60Hz, which is the Native Resolution Display mode.
The display modes shown below have been optimized at the factory.
Table 2-3. Factory set display modes
Addressability Refresh rate
640x480
60Hz
720x400
70Hz
800x600
60Hz
1024x768
60Hz
1280x800
60Hz
1280x1024
60Hz,72Hz
1366x768
60Hz
1440x900
60Hz, Reduced 60Hz
1600x900
60Hz
1680x1050
60Hz, Reduced 60Hz
1920x1080
60Hz, 75Hz
Understanding power management
Power management is invoked when the computer recognizes that you have not using your mouse or keyboard for
a user-definable period. There are several states as described in the table below.
For optimal performance, switch off your monitor at the end of each working day, or whenever you expect to leave
it unused for long periods during the day.
Table 2-4. Power indicator
State
Power Indicator
Screen
Restoring Operation
Compliance
On
Steady White
Normal
Standby/
Suspend
Steady amber
Blank
Press a key or move the mouse. There may be a
slight delay reappears.
Note: Standby also occurs if there is no image
output to the monitor.
CEC
Off
Off
Off
Press power key to switch on There may be a slight
delay before the image reappears.
CEC
** Maximum power consumption with max luminance.
This document is informational only and reflects laboratory performance. Your product may perform differently,
depending on the software, components and peripherals you ordered and shall have no obligation to update such
information. Accordingly, the customer should not rely upon this information in making decisions about electrical
tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied.

Lenovo C27-40 Specifications

General

Panel type	VA
Color depth	8 bit
Color gamut	72 %
Pixel pitch	0.311 x 0.311 mm
Screen shape	Flat
Pixel density	81 ppi
Display diagonal	27 \
Anti-glare screen	Yes
Display technology	LED
Native aspect ratio	16:9
Maximum refresh rate	75 Hz
Response time (fast)	4 ms
Viewable size, vertical	336.3 mm
Contrast ratio (dynamic)	3000000:1
Contrast ratio (typical)	3000:1
Display number of colors	16.7 million colors
Viewable size, horizontal	597.8 mm
Display brightness (typical)	250 cd/m²
AC input voltage	100 - 240 V
Power supply type	Internal
AC input frequency	50 - 60 Hz
Power consumption (max)	28 W
Power consumption (off)	0.3 W
Power consumption (standby)	0.5 W
Power consumption (typical)	20 W
Certification	RoHS TÜV Rheinland Eye Comfort
Product color	Black
AMD FreeSync type	FreeSync
Compatible operating systems	Windows 10, Windows 11
HDMI version	1.4
Headphone connectivity	3.5 mm
Tilt angle range	-5 - 22 °
Cable lock slot type	Kensington
Panel mounting interface	100 x 100 mm
Cables included	AC, HDMI
HDMI cable length	1.8 m
Package depth	456 mm
Package width	154 mm
Package height	716 mm
Package weight	6600 g

Weight and Dimensions

Bezel width (side)	2 mm
Depth (with stand)	209.5 mm
Width (with stand)	614.1 mm
Height (with stand)	454.4 mm
Weight (with stand)	4800 g
Bezel width (bottom)	28.1 mm
Depth (without stand)	45.5 mm
Height (without stand)	374.5 mm
Weight (without stand)	4000 g