This is a backplate for a portable monitor designed for Raspberry Pi or as a secondary computer display. It's a 7-inch IPS screen with a resolution of 1024x600 and a 60Hz refresh rate. [1, 2] Here's an explanation of the ports and buttons at the bottom of the board: ## 1. Connection and Power Ports (Bottom Ports) * HDMI-IN: Port for connecting an HDMI cable to transmit video and audio from a Raspberry Pi, computer, or any other device that supports video output. * DC5V POWER: Micro-USB port dedicated to supplying the monitor with the necessary electrical power to operate at 5 volts. [1, 3, 4] ## 2. Brightness Control Keys (Shortcut Buttons) In the bottom right corner, you'll find a 3-way mechanical switch (wheel switch or scroll button) that controls the monitor's backlight: * BACKLIGHT+: Move or press the switch towards the plus sign to increase the screen's backlight brightness. * BACKLIGHT-: Move the switch towards the minus sign to decrease the screen's backlight brightness. * ON/OFF BACKLIGHT: Long or medium press on the same switch to turn the backlight completely on or off (to save power without disconnecting the monitor). [1, 2, 3] If you're facing a specific issue with its operation or want to know how to connect it to a specific device like a Raspberry Pi, share the details, and I'll help you with the connection steps! [1] [ [2] [ [3] [ [4] [ This is a backplate for a portable monitor designed for Raspberry Pi or as a secondary computer display. It's a 7-inch IPS screen with a resolution of 1024x600 and a 60Hz refresh rate. [1, 2] Here's an explanation of the ports and buttons at the bottom of the board: ## 1. Connection and Power Ports (Bottom Ports) * HDMI-IN: Port for connecting an HDMI cable to transmit video and audio from a Raspberry Pi, computer, or any other device that supports video output. * DC5V POWER: Micro-USB port dedicated to supplying the monitor with the necessary electrical power to operate at 5 volts. [1, 3, 4] ## 2. Brightness Control Keys (Shortcut Buttons) In the bottom right corner, you'll find a 3-way mechanical switch (wheel switch or scroll button) that controls the backlight: * BACKLIGHT+: Move or press the switch towards the plus sign to increase the screen's backlight brightness. * BACKLIGHT-: Move the switch towards the minus sign to decrease the screen's backlight brightness. * ON/OFF BACKLIGHT: Long press