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Item | Description | Unit |
---|---|---|
Model | 21.5inch FHD Monitor | / |
Dimensions | 21.5 | Inch |
Viewing Angle | 170 | Deg |
Resolution | 1080 × 1920 | Pixels |
Overall Dimensions | 519.38(H) × 301.00(V) × 18.00(D) | mm |
Display Area | 478.65(H) × 260.28(V) | mm |
Pixel Pitch | 0.1335(H) × 0.1335(V) | mm |
Color Gamut | 72% | NTSC |
Default Brightness | 350 | cd/m² |
Maximum Brightness | 600 | cd/m² |
Contrast | 1000:1 | / |
Backlight Adjustment | OSD menu | / |
Refresh Rate | 60 | Hz |
Display Interface | Standard HDMI port | / |
Power Port | 12V | / |
Default Power Consumption | 24 | Watt |
Parameter | Min. Value | Standard Value | Max. Value | Unit | Note |
---|---|---|---|---|---|
Input Voltage | 11.5 | 12.00 | 12.5 | V | Note 1 |
Input Current | 2 | 2 | TBD | A | Note 2 |
Operating Temperature | -5 | 25 | 60 | ℃ | Note 3 |
Storage Temperature | -10 | 25 | 70 | ℃ | Note 3 |
How to Use:
Take Windows 10 as an example:
This setting is used for Raspberry Pi OS/Ubuntu/Kali or Retropie system.
hdmi_force_hotplug=1
max_framebuffer_height=1920
hdmi_group=2
hdmi_mode=87
hdmi_timings=1080 0 40 20 60 1920 0 2 5 33 0 0 0 60 0 141120000 6
config_hdmi_boost=10
If you are using a Bullseye/Buster system, you can rotate it as follows:
If you use other systems, you can rotate the display as shown below:
display_rotate=1 #1:90;2: 180; 3: 270
sudo reboot
As the touch direction is different after rotating, you need to rotate the touch as shown below:
1. Install libinput
sudo apt-get install xserver-xorg-input-libinput
If the system you want to install is Ubuntu or Jetson Nano, the installation command is:
sudo apt install xserver-xorg-input-synaptics
2. Create xorg.conf.d directory in /etc/X11/. (If the directory exists, you can directly skip to Step 3.)
sudo mkdir /etc/X11/xorg.conf.d
3. Copy 40-libinput-conf file to the directory created just now.
sudo cp /usr/share/X11/xorg.conf.d/40-libinput.conf /etc/X11/xorg.conf.d/
4. Edit the file.
sudo nano /etc/X11/xorg.conf.d/40-libinput.conf
Find the touchscreen part, add the following sentence, and then save.
Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"
As shown below:
5. Reboot the Raspberry Pi.
sudo reboot
After finishing the above steps, the touch can be rotated 90 degrees.
Note:
90-degree rotation: Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"
180-degree rotation: Option "CalibrationMatrix" "-1 0 1 0 -1 1 0 0 1"
270-degree rotation: Option "CalibrationMatrix" "0 -1 1 1 0 0 0 0 1"
Some customers want to display without being affected by the screen saver function and can be set as follows. Turn off the screen saver.
Open lightdm.conf.
sudo nano /etc/lightdm/lightdm.conf
Change lightdm.conf to find "xserver-command" under the [SeatDefaults] section, uncomment it, and change it to read as follows:
#xserver-command=X
Modify to
xserver-command=X -s 0 -dpms
-s # –: Set the screen saver not to enable.
dpms: Disable power saving management.
Reboot:
sudo reboot
Users can set the screen to turn off and on with the following commands.
vcgencmd display_power 0 vcgencmd display_power 1
If the system on the control board can automatically identify the EDID for display, there is no need to set the relevant timing parameters.
Otherwise, refer to the following EDID settings:
Pixel Clock | H Addressable | H Blanking | V Addressable | V Blanking | H Front Porch | H Sync Width | V Front Porch | V Sync Width | H Image Size | V Image Size | H Border | V Border |
---|---|---|---|---|---|---|---|---|---|---|---|---|
141.12 | 1080 | 120 | 1920 | 40 | 40 | 20 | 2 | 5 | 1080 | 1920 | 0 | 0 |
As shown below, removes the triode and the PWM signal is connected to the base of the triode.
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