Embedded Displays for Robotics
Product Overview
Embedded displays provide visual information andinteractive control for service robots, industrial equipment and autonomoussystems. A typical display module integrates an LCD or OLED panel, cover glass,touch sensor, backlight, driver circuitry and flexible cable interfaces.
Connected to an HMI control board, the display can presentrobot status, task options, maps, operating instructions, maintenanceinformation and diagnostic data.
Key Functions
Displays operating status and task information
Provides touchscreen human-machine interaction
Shows maps, routes and navigation guidance
Presents alarms and diagnostic information
Supports task selection and parameter settings
Displays camera images and sensor data
Provides maintenance and commissioning interfaces
Improves communication between people and robots
Supports multilingual graphical interfaces
Provides visual feedback after user input
Typical Applications
Humanoid service robots
Medical and healthcare robots
Hotel and reception robots
Delivery robots
Cleaning robots
Industrial control panels
AGVs and AMRs
Educational robots
Robot teach pendants
Inspection and maintenance systems
Main Components in the Display Module
Cover Glass
Protects the display from scratches, dust and impact. Itmay include anti-glare, anti-fingerprint or chemically strengthened treatment.
Touch Sensor
A projected-capacitive touch layer detects finger positionthrough transparent conductive electrodes.
Optical Adhesive
Bonds the cover glass to the display, reducing internalreflections and improving visibility.
LCD or OLED Panel
Generates the visible image. LCD panels require abacklight, while OLED pixels produce their own light.
Polarizer and Color Filter
Control light transmission and create the displayed colorsin an LCD system.
Backlight Unit
LEDs, a light-guide plate, diffuser sheets and reflectorprovide even illumination across an LCD panel.
FPC Cables
Flexible printed cables transfer display, touch andbacklight signals between the module and control PCB.
Metal Backplate
Provides mechanical support, heat spreading and protectionfor the display stack.
Interface Board
Connects the display and touch FPCs while providing localfiltering, protection or signal conversion.
Components on the HMI Control PCB
Application Processor
Runs the graphical user interface, manages touch input andcommunicates with the robot’s main controller.
Display Controller
Generates pixel timing and transfers image data to thepanel.
Touch Controller
Processes signals from the capacitive touch sensor andreports touch coordinates to the processor.
Memory
DDR or SRAM provides working memory for graphics,animations and interface applications.
eMMC or Flash
Stores the operating system, interface software, fonts,graphics and configuration files.
Backlight Driver
Regulates LED current and controls screen brightness.
PMIC and Regulators
Generate the voltage rails required by the processor,display, touch controller and interface circuits.
Ethernet, CAN and RS‑485
Connect the HMI assembly to the robot’s main controller,network and distributed control systems.
ESD Protection
Protects touch, USB and external communication interfacesagainst electrostatic discharge.
Audio Amplifier
Drives a speaker for prompts, notifications or voiceinteraction.
How It Works
The robot controller sends status, task and sensor data tothe HMI processor. The processor generates the graphical interface and sendspixel data to the display panel.
When a user touches the screen, the touch controllerdetects the contact position and sends it to the processor. The selectedcommand is then transmitted to the robot’s main controller.