LCD

Introduction

Support List

The ROCK 5 ITX comes with a 4-lane DSI interface. The following is a list of currently supported screens:

Screen Name	Resolution
Radxa Display 8 HD	1280x800 pixels
Radxa Display 10FHD	1200x1920 pixels
Radxa Display 10HD	1200x1920 pixels

Accessories

Radxa 8" HD Touch Screen

Radxa Display 8 HD

Overview

The Radxa Display 8 HD is a colour active matrix LCD module with touchscreen, designed for Radxa single board computers. This 8.0-inch display allows you to create interactive projects such as tablet PCs, industrial HMIs, information dashboards, and more. With a single cable for power, display, and touch, as well as an enabled software on-screen keyboard, the Radxa Display 8 HD gives you a complete HMI without the need to connect a keyboard or mouse. In addition, the built-in sensors on the display can be used for automatic portrait or landscape rotation. It has the following features:

8.0-inch LCD display
800 x 1280, 16.7M colour resolution
Full viewing angle LCD
5-point capacitive touchscreen
Supports PWM brightness control
Supports colour enhancement
Built-in gravity sensor for portrait/landscape rotation

Features

Effective range: 107.64(H) x 172.224(V) mm
Pixel Pitch: 0.04485(W) x 3 x 0.13455(H)
Pixel arrangement: RGB vertical stripes
Display colour: 16.7M
Display Mode: Normal Black
Viewing angle: full angle
Brightness (cd/m2): 300 cd/m2
Contrast ratio: 1000 (typical)
Surface Finish: Anti-glare
Interface: MIPI
Backlight: White LED
Input Voltage: 1.8V
Operating Temperature: -20 to 60°C
Storage Temperature: -30 to 60°C

Touch

Radxa Display 8 HD touch panels are driven by the GT911, a next-generation 5-point capacitive touch solution designed for 7" to 8" panels. It consists of up to 26 emitter electrodes and 14 receiver electrodes for greater touch accuracy. The GT911 supports up to 5 points of concurrent touch, tracking the exact position and movement trajectory and touch area in real time. In addition, it can report this information to the host computer as needed.

Features

Built-in capacitive sensing circuitry and high performance MPU
- Reporting rate: 100Hz
- Real-time output of touch coordinates
- Unified software for capacitive touch panels of various sizes
Capacitive Touch Sensor
Channel: 26 (Tx channel)* 14 (Rx channel)
- Supported Cover Lens Thickness: 0.55mm ≦ Glass ≦ 2mm,0.5mm ≦ PMMA ≦ 1.2mm
- Adaptive Frequency Hopping
- Support OGS Full Lamination
Environmental Adaptation
- Self-calibration during initialisation
- Automatic drift compensation
Response Time
- Green mode: <48ms
- Sleep mode: <200ms
- Initialisation: <200ms

Signal Definition

| PIN | Name | Description | PIN | Name | Description | | --- | -------- | ------------------------------ | --- | -------- | ------------------------------------ | --- | -------- | ------------------------------ | ------------------ | ------ | ------------- | ----- | ---- | ----- | --- | -------- | ------------------------------ | | 1 | NC | No connection | 21 | MIPI_3P | +MIPI differential data input | | 2 | VDD | 3.3V | 22 | GND | Ground | 3 | VCCIO | VCCIO | VCCIO | VCCIO | VCCIO | VCCIO | | 2 | VDD | 3.3V | 22 | GND | Ground | 3 | VCCIO | IO VCC (1.8V-3.3V) | 23 | GND | Ground | | 4 | NC | INT 1 | 24 | TP_RESET | External interrupt to the host Reset | 5 | Reset | IO VCC | IO VCC (1.8V-3.3V) | | 4 | NC | INT 1 | 24 | TP_RESET | External interrupt to the host Reset | 5 | Reset | RESET | 25 | TP_VCC | Power | 6 | NC | INT 1 | 24 | TP_RESET | External interrupt to the host | | 6 | NC | INT 2 | 26 | TP_INT | External Low is active | | 7 | GND | Ground | 27 | TP_SDA | I2C data input and output | 8 | MIPI | MIPI | MIPI | MIPI | MIPI | MIPI | MIPI | | 8 | MIPI_0N | -MIPI differential data input | 28 | TP_SCL | I2C clock input | | 9 | MIPI_0P | +MIPI differential data input | 29 | GND | Ground | 10 | GND | Ground | 10 | GND | Ground | | 10 | GND | Ground | 30 | GND | Ground | | 11 | MIPI_1N | -MIPI differential data input | 31 | VDD | VDD 3.3V | | 12 | MIPI_1P | +MIPI differential data input | 32 | VDD | VDD 3.3V | | 12 | MIPI_1P | +MIPI differential data input | 32 | VDD | VDD 3.3V | 13 | GND | Ground | 33 | GND | Ground | | 13 | GND | Ground | 33 | GND | Ground | 14 | MIPI_CKN | -MIPI differential clock input | 34 | GND | Ground | | 14 | MIPI_CKN | -MIPI differential clock input | 34 | GND | Ground | 15 | MIPI_CKP | +MIPI differential clock input | 35 | LED- | LED Cathode | | 16 | GND | Ground | 36 | LED- | LED Cathode | | 17 | MIPI_2N | -MIPI differential data input | 37 | NC | No connection | | 18 | MIPI_2P | +MIPI differential data input | 38 | NC | No connection | | 19 | GND | Ground | 39 | LED+ | LED Anode | 20 | MIPI_2P | +MIPI differential data input | 38 | NC | No connection | 19 | | 20 | MIPI_3N | -MIPI differential data input | 40 | LED+ | LED Anode |

Physical Specifications

Radxa Display 8 HD

Test Methods

Connections

Connect the ROCK 5 ITX via FPC cable as shown in the figure:

Enabling Overlay
Open the Kconsole terminal via the Application Launcher in the lower left corner, and run the rsetup command:

radxa@rock-5itx:~$ rsetup

Pass the [device tree configuration](... /os-config/rsetup#overlays) to enable Overlay for the Rxa 4K camera.

tip

Please enable the [] Enable Radxa Display 8HD on LCD0 item Overlay. 2.
Quit and reboot after enabling [*] Enable Radxa Display 8HD on LCD0 successfully for the configuration to take effect.

Test

After reboot, the Radxa 8" Full HD touchscreen is able to display the system screen and supports touch.