4 Inch Ultra-thin Serial TFT Display 480x480 Low Power Consumption Script Configuration Intelligent Display With Capacitive Touch For Medical

4 Inch Ultra-thin Serial Port Screen Overview
4 Inch Ultra-thin Serial TFT Display 480x480 Low Power Consumption Script Configuration Intelligent Display With Capacitive Touch For Medical.
Product Model
ET040COF4848-DC(Capacitive Touch)
ET040COF4848-DCN(No touch)
 

4 Inch Serial Port Screen Product Parameters
Product series: Medical grade
Core processor: 400M SOC processor
Operating system: No operating system, it can run after power on
Protocol type: Default Dacai configuration instruction set, the host computer can be configured to run MODBUSRTU, XGUS protocols.
Scripting language: LUA script, the screen can run logic, protocols and algorithm functions written by the user.
Size: 4.0 inches
Resolution:480x480
Installation direction: supports 0, 90, 180 and 270 degree rotation installation display.
Storage space: 128Mbit
Font library: Built-in vector fonts, edge anti-aliasing processing, supports any size ASCII, GBK, GB2312, UNICODE (global language) font library, and can also customize any computer font display.
Image storage: Supports JPEG, PNG (semi-transparent/fully transparent) compression, and supports image storage of any size. It can store about 150 full-screen pictures in total (based on the size of 70KB/picture, BMP format is not recommended). Depending on the image compression ratio, this value will fluctuate up and down.
Color: 65K colors, 16-bit RGB
Voltage: 5V (±0.2V)
Power consumption: darkest backlight: 0.5W: brightest backlight: 1.1W
Communication method: TTL
Communication baud rate: 1200～921600bps, typical baud rate: 115200bps
Communication connector specifications: FPC1.0-16P
Local download of pictures: SD card, serial port, U disk
Firmware local/remote upgrade: Insert SD card for local upgrade/support user motherboard remote serial port upgrade screen firmware.
Remote image upgrade: Support users to remotely use their own motherboard serial port to upgrade screen-related image projects, fonts, configuration files, etc.
Screen effective display area: 71.9mmx70.2mm
Product size: 84.0mmx84.0mmx6.1mm (MAX, including TP and FPC)
Supporting host computer software: VisualTFT®
Audio playback: MP3 audio format (speaker 4Ω 2W, mono), shares storage space with pictures. If the sampling rate of mp3 format is 128kbps, it will occupy 0.92MB/minute of storage.
Video playback: MP4 video format, sharing storage space with pictures. If a video file has a resolution of 800*600, a video bit rate of 3000Kbps, an audio bitrate of 166Kbps, and a frame rate of 25Hz, it will occupy 21.9MB/minute of storage.

Reliability parameters
Operating Temperature: 20~+70°C
Storage Temperature: 30~+80°C
ESD test: IEC 61000-4-2 Air: ±10KV (no restart)
EFT test: IEC 61000-4-4 national standard 4 (voltage: ±4KV; frequency: 100/5KHZ; time: 120S), no restart, no display abnormality, no touch abnormality and other phenomena, the test function is normal.
Radiation test: EN55022 ClassB

Core competitiveness of products
Learning cycle: 30 minutes to familiarize yourself with the development environment, 3 days to complete human-computer interaction design.
Program debugging: The host computer integrates a "virtual serial port screen," eliminating the need for hardware connection and allowing direct Keil debugging. IDE-bound debugging
Startup Time: Runs instantly upon power-up, eliminating system loading time
Configuration Controls: Features a variety of configuration controls, including multi-language controls, buttons, text, drop-down menus, progress bars, sliders, meters, animations, QR codes, curves, data loggers, circular progress bars, and sub-screen slide controls.
System Keyboard: Built-in virtual numeric and character keyboards, supporting Chinese and English input methods, and customizable keyboards.
Data Logging: Supports exporting data logger content to an SD card.
Layer Technology: Multiple display layers are built into the system for faster switching.
Multilingual Capability: Factory-preset up to 15 global languages, enabling one-click switching without the need for multiple UIs.
Logical Operation Processing: The host computer has an embedded LUA script parser, allowing users to customize complex logic relationships and protocols within the screen, meeting 99.9% of customer product requirements.
Remote Upgrade: Supports remote serial port upgrades of display firmware, project files, specified images, configuration files, and fonts.
Lifecycle: Utilizes a traditional, leading-edge processor, ensuring long-term supply.

4 Inch Serial Port Screen
Display Type: IPS LCD
Backlight: LED
Brightness (cd/m²): 300
Backlight Lifespan (hours): >20,000
Contrast Ratio: 500:1
Viewing Angles (L/R/T): 80/80/80/80

Touch panel (resistance and capacitance optional)
Touch Type: Capacitive Touchscreen (IC: GT911)
Capacitive Touch Modes: Single-touch and Slide Touch
Capacitive Touch Transmittance: Over 90%
Capacitive Touch Lifespan: Theoretically, unlimited touches are possible; touch lifespan is dependent on operating environment (dust and humidity).
Capacitive Cover Customization: Customizable "glass cover + capacitive touch" lamination service based on user drawing dimensions.
Touch Type: Resistive Touchscreen
Resistive Touch Modes: Single-touch and Slide Touch
Resistive Touch Transmittance: Over 80%
Resistive Touch Lifespan: Over 1 million touches per pixel.

Customized services
Customization Fees: For orders of 1,000 units, some customization fees may be waived.
Hardware Circuits: Customizable PCB size, circuit thickness, custom circuitry, military-grade temperature display, and more.
Software Customization: Customizable instructions or controls based on user needs, reducing development effort.
Design Services: Graphic design and product structure design services available.
Other: Customizable on demand to meet all user needs.

Installation diagram
(COF series installation method 1 schematic diagram)

Step 1: The customer opens the hole according to the product size
Step 2: Tear off the 3M adhesive protective film around the back of the touch cover to expose the 3M adhesive
Step 3: Press the screen tightly to ensure that the 3M adhesive on the screen cover is in perfect contact with the cabinet surface
Step 4: Install the customer's main board on the housing and tighten the screws to fix it, and insert the cable
Step 5: Installation Complete

(COF series installation method 2 schematic diagram)

Step 1: Customer drills holes based on product dimensions
Step 2: Tear off the 3M adhesive protective film around the back of the touch cover to expose the 3M adhesive
Step 3: Press the screen tightly to ensure that the 3M adhesive on the screen cover is in perfect contact with the cabinet surface
Step 4: Install the customer main board on the housing and tighten the screws to fix it, and then insert the cable
Step 5: Installation Complete

PRODUCTION AND MANUFACTURING

Application Areas