If you are looking for an ultrawide display to show information on your PC or Raspberry Pi, there’s a 7.9-inch IPS display with 1280×400 resolution that may meet your requirements.
The display is powered through a USB port and takes a video source from its HDMI 1.4 input port, so it should work with any hardware equipped with HDMI output and a USB port.
LR79 display specifications:
- Display – 7.9-inch TFT-LCD IPS display with
- 1280×400 resolution @ 60Hz, no touch function
- 178° field of view
- 5:16 aspect ratio
- Response Time: 40ms(Typ.)(Tr+Tf)
- Contrast Ratio: 900:1
- Brightness: 500cd/
- Color Gamut: 70% NTSC
- Display Colors: 16.7M
- Backlight: WLED (19.2V)
- Connector: 30-pin ZIF
- Display Input – HDMI 1.4
- Power Supply – 5V via micro USB port
- Dimensions
- 205.8 x 67.6 x 13.3 mm
- Active Area – 190.08 x 59.40 mm
- Weight – 108 grams
The display should work with any host with HDMI output, but it’s advertised as a Raspberry Pi-compatible display where you need to change the config.txt file as follows:
|
1 2 3 4 |
max_usb_current=1 hdmi_group=2 hdmi_mode=87 hdmi_timings=400 0 100 10 140 1280 10 20 20 2 0 0 0 60 0 43000000 3 |
In the specific case of Raspberry Pi 4, you may also need to comment out dtoverlay=vc4-fkms-V3D to get back to the older framebuffer API, but that would mean disabling 3D acceleration.
The display can be purchased on Banggood for $63.99 including shipping. While looking for an alternative source, I also noticed Waveshare had a similar 7.9-inch display with touchscreen function going for $78.99 on their own website, or a little more on Amazon US. In this case, the USB connection is not only used for power, but also for the touchscreen function.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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