Template: 11.9inch HDMI LCD user manual

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Introduction

This is a 11.9inch Capacitive Touch Screen LCD, IPS screen, which supports Raspberry Pi and can also be used as a computer monitor.

More

Features

  • 11.9inch IPS screen, 320x1480 resolution, HDMI/USB interfaces.
  • Toughened glass capacitive touch panel
  • Supports popular mini PC such as Raspberry Pi, Jetson Nano
  • Use with Raspberry Pi, supports Raspbian / Ubuntu / Kali and Retropie, single touch and driver free.
  • Use as a computer monitor, it supports Windows 10 / 8.1 / 8 / 7, five-point touch and driver free.
  • Touch orientation is adjustable with the button.
  • HDMI audio input, 3.5mm headphone/speaker jack.

Working with PC

This LCD supports Windows 7/8/8.1/10 when working with PC via HDMI interface.：
1. Connect the TOUCH interface of LCD to the USB interface of PC. Waiting for a moment, The touch will be recognized by Windows automatically.
2. Connect the HDMI interface of LCD to the HDMI port of PC. About 10s later, you can see that the LCD display properly.If you need to output sound, you can connect to 3.5mm headphones through HP audio output port.
Note:
1) When the computer is connected to several different displays at the same time, only this LCD can be used to control the cursor on the main display, so we recommended to set this LCD as the main display.
2) Some of PC cannot support HDMI screen Hot Plug. In this case, restart the PC can solve.
3) Sometimes LCD will flicker because of undersupplying from USB cable of PC. You need to connect an external power supply (5V/2A) to DC port.

Orientation setting

Display orientation
You can adjust the display orientation by display setting.
Touch orientation
The physical button on the backside can be used to adjust the orientation of touch. You can hold it for 5s to change.
You may need to test multi times for the correct orientation.

Calibration touch on Win 10 PC

Take the windows10 system as an example:

  • 1. Enter the Windows settings of the system, type in the search bar and click "Calibrate the screen for pen or touch input" (as shown in the picture below).

Win10 touch011.png

Win10 touch02.png
  • 2. Click "Setup" in the pop-up "Tablet PC Settings" interface:


  • 3. The following text prompt will appear on the screen. Please tap the touch screen with your finger, and the computer will recognize it as a touch screen.

【Note】If the touch screen is blank, press the "Enter" key, and the text prompt will switch to the touch screen. (The screen which displays the text prompt will be used as a touch screen!)

Win10 touch03.png

Working with Raspberry Pi

This LCD supports Raspbian/Ubuntu mate/Kali/Retropie/Windows 10 IoT Core.
When working with Raspberry Pi, you should set the resolution of the LCD by yourself, or else the LCD screen will not work. For more detail information, please read the following section.
Please download the latest version of the image on the Raspberry Pi official website.

1) Download the compressed file to the PC, and unzip it to get the .img file.
2) Connect the TF card to the PC, use SDFormatter.exe software to format the TF card.
3) Open the Win32DiskImager.exe software, select the system image downloaded in step 1, and click‘Write’ to write the system image.
4) After the image has finished writing, open the config.txt file in the root directory of the TF card, add the following code at the end of config.txt, then save and quit the TF card safely.
max_framebuffer_height=1480
max_usb_current=1
hdmi_group=2
hdmi_mode=87
hdmi_timings=320 0 80 16 32 1480 0 16 4 12 0 0 0 60 0 42000000 3


You must make sure that there are no spaces on either side of the equal sign.

5) Insert the TF card into the Raspberry Pi
6) Connect the Touch interface of the LCD to the USB port of Raspberry Pi.
7) Connect the HDMI interface of the LCD to the HDMI port of Raspberry Pi and then power on the Raspberry Pi, it can display normally after waiting for about a few seconds.


Note:

  • If you are using Pi4 or higher, the HDMI cable needs to be connected to the HDMI0 port of the Raspberry Pi (near the power port)
  • Resolution of Ubuntu Mate OS or Windows 10 IoT Core OS can also be set properly by editing config.txt.
  • For Pi Zero / Zero W: if you've used an SD card on a Pi 3 and then attached the card to the Pi Zero, the touch screen often doesn't work. In such cases, you have to write a fresh system image to the SD card. The first boot up must be done on the Pi Zero but not Pi 3, due to initialization for a corresponding device.
  • The screen is displayed in portrait mode by default. For ease of use, the screen display direction can be adjusted, please read the following section.

Orientation setting(Working with Raspberry Pi)

Display orientation

If you are using the Raspberry Pi4, you can use the following method to rotate the display direction.

  • 1.Open Screen Configuration.

5.5inch-HDMI-AMOLED-Manual-11.jpg

  • 2.Set the rotation as shown below.

5.5inch-HDMI-AMOLED-Manual-12.jpg

5.5inch-HDMI-AMOLED-Manual-13.jpg

5.5inch-HDMI-AMOLED-Manual-14.jpg

  • 3.And then after rotating the touch direction, the LCD will work normally.

If you are using Pi3+ or an older version, you can rotate the display direction in the following ways:

  • 1. To rotating the display, you can append this statement to the config file
display_rotate=1 #1: 90; 2: 180; 3: 270
  • 2. Reboot the Raspberry Pi
sudo reboot

Touch orientation

After the display is rotated, the position of touch is incorrect because the touch doesn’t change with the display angle. So the touch also needs to be modified. You can hold the following button for 5s to change the touch direction.

11.9inch-HDMI-LCD-Manual01.jpg

【Note】When using the new system, it may cause touch reverse errors. At that time, you need to press and hold "Rotate Touch" to rotate.

Keys Introduction

  • On/OFF: Turn on/off the backlight.
  • Rotate Touch: Hold it for 5s to change the touch orientation.

Others

Disable power saving.

If you want to keep the display turning on all the time, you can disable the power saving function.
Modify file lightdm.conf

sudo nano /etc/lightdm/lightdm.conf

Find the [SeatDefaults] option and uncomment the line"xserver-command", modify it as below: 

#xserver-command=X

Modify this code to 

xserver-command=X -s 0 -dpms
  • -s # –Disable the display protecting.
  • dpms Disable power saving.

Reboot

sudo reboot

Turn on/off HDMI output

You can use the following commands to disable/enable the displaying. 

vcgencmd display_power 0
vcgencmd display_power 1
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