11.9inch HDMI LCD

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11.9inch HDMI LCD
11.9inch-HDMI-LCD-1.jpg

11.9inch HDMI LCD, 320 x 1480 resolution
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Overview

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, 320 x 1480 resolution.
  • 5-point capacitive touch control, tempered glass panel, hardness up to 6H.
  • Use with Raspberry Pi, supports Raspberry Pi OS / Ubuntu / Kali and Retropie system.
  • Use as a computer monitor, it supports Windows 11 / 10 / 8.1 / 8 / 7 system.
  • HDMI audio input, 3.5mm headphone/speaker jack.

Working with PC

This LCD supports Windows 7/8/8.1/10/11 system：
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 multiple monitors at the same time, the touch effect of the 7inch LCD will be applied to the main screen by default. If you need to specify the touch to the secondary screen, see #Calibration touch on Win 10 PC
2）Sometimes LCD will flicker because of undersupplying from the USB cable of the PC. You need to connect an external power supply (5V/2A) to the DC port.

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 Raspberry Pi OS/Ubuntu mate/Kali/Retropie/Windows 10 IoT Core.
Please download the latest version of the image on the 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 and use SDFormatter to format the TF card.
3) Open the Win32DiskImager software, select the system image prepared in step 1, and click write to burn 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
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:

  • The screen is displayed vertically by default. For convenience, you can adjust the display orientation of the screen, see #Orientation setting(Working with Raspberry Pi).
  • When the Raspberry Pi is connected to multiple monitors at the same time, the touch effect of the 7inch LCD will be applied to the main screen by default. If you need to specify the touch to the secondary screen, see#Calibrate double-touchscreen in Pi 4

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.

Calibrate double-touchscreen in Pi 4

  • 1. Open the terminal and input command: xrandr to check HDMI-ID of the main monitor. (It is HDMI-1 most time);

Pi4-conf-touch-1.png

  • 2. Input command xinput in the terminal, and check the touch ID of the main monitor. (There should be two IDs, you can touch displays to check which is the main one);

Pi4-conf-touch-2.png

  • 3.Tun the command：xinput map-to-output <touch ID> <HDMI-ID>

(Don't forget to change the ID to the correct one just like: xinput map-to-output 7 HDMI-1)

Pi4-conf-touch-3.png

  • 4. You can set the command to auto-run while booting and make it affect all the time:
sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

Add the line to the file: xinput map-to-output 7 HDMI-1 (Don't forget to change the ID to the correct one), then reboot.

Pi4-auto-start-4.png

Disable power saving

Open lightdm.conf 

sudo nano /etc/lightdm/lightdm.conf

Modify lightdm.conf to find the 'xserver-command' under the [SeatDefaults] section, uncomment it, and modify it as follows: 

#xserver-command=X

Change into 

xserver-command=X -s 0 -dpms
  • -s # – set screen saver not enabled
  • dpms turn off power saving management

Resart 

sudo reboot

Backlight control

You can control the backlight brightness by long pressing ON/OFF on the back of the LCD.

Note: If you increase the brightness, it may cause the insufficient power of the LCD by getting power through the USB interface. To solve this problem, you can input 5V/2A power through the Power interface on the back of the LCD.

Keys Introduction

  • ON/OFF: Short press to turn on/off the screen. Long press to adjust screen brightness.
  • 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


Resources

3D Drawing

Software

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