Medical Grade USART HMI Screen Module 800x480 7 Inch 16 Bit RGB With RTP

Medical Grade 16 bit RGB 800x480 7 Inch USART HMI SCREEN Module with RTP
 
1. Parameters of Colour LCD Display
 

 
 
2. Reliability Test of USART HMI lcd Module
All serial screens of Chenghao Optoelectronic have undergone a series of process reliability tests before mass production: high and low temperature, ESD, burst, radiation, touch life and other tests to ensure product quality
 
(1) ESD Test-test environment:
 
Test ambient temperature: 25°C
Test environment humidity: 50%
Test process: Place the product flat on the test bench, and perform contact and air discharge on the iron buckle and display area of the serial port screen in turn, as shown in the figure below; observe whether the screen resets and restarts, displays abnormalities, etc.
 

 
 
 (2) High and Low Temperature Aging Test-Test Environment
 
Test environment temperature: -20～+70℃
Test environment humidity: 60%±3%RH
Test process: Place the product obliquely in the high and low temperature test box, as shown in Figure 3-3; pass the 72H high temperature, low temperature, high and low temperature alternating aging test, observe whether the screen resets and restarts, displays abnormally, and functions abnormally during the test and after the test.
 

 
 
 
(3)Group pulse test - test environment
 
Test ambient temperature: 25°C
Test environment humidity: 50%
Test process: place the product flat on the test bench, and supply power to the screen through the power source coupled with the pulse group generator by the pulse group generator, as shown in the figure; observe whether the screen resets and restarts, displays abnormally, and touches abnormally during the experiment.
 

 
 
3. LUA script configuration of SPI TFT LCD Display
 
The F-type, M-type, and IOT-type serial screens launched by Shenzhen Chenghao Optoelectronics Co., Ltd. all support LUA language scripts. The serial screen provides a rich LUA script API and callback interface. Users can directly set and obtain the running status of all configuration controls by calling the API interface. Combined with the written logic processing, the screen can complete the scheduled actions without the participation of an external MCU, reducing the data communication between the MCU and the screen.
LUA is a lightweight scripting language with simpler syntax and logic than C language, so developers can get started directly. The LUA language comes with a well-functioning mathematical function library, string processing, JSON and other libraries, and has function support for common mathematical operations, such as square root, sine cosine, absolute value, etc.; due to the high frequency of the screen itself, all complex algorithms are processed by the screen, which greatly reduces the execution cost of the user's MCU.
To write the LUA script of the project in the VisualTFT software, click [Tools] → [LUA Script Programming] on the menu bar to open it
 
4. Product architecture of Medical LCD Monitor
The industrial serial screen launched by Shenzhen Chenghao Optoelectronics Co., Ltd. (chenghaolcd.com) is a serial display terminal integrating TFT display driver, picture font storage, GUI operation, audio playback and various configuration controls. The user's single-chip microcomputer only needs to send and receive the corresponding serial port instructions to easily realize the display of text, pictures and curves.
The M series serial screen processor adopts a 32-bit 400M SOC processor, which integrates functions such as SDR video memory and JPEG image decoding.