Advanced type

►Size: 12.1"
►Resolution: 800x600 (4:3)
►Interface: RS232/RS485/USB
►Viewing Area (mm): 246*184.5
►Brightness(cd/m²): 300
►Touch Screen: Touch-Screen & KB & RTC



LCD Controller


Refresh Rate


Picture Switching Speed

47 ms/frame (21 images/s)

Flash Memory

Standard 128MB, Extension 1GB

Memory Amount for picture

According to the capability of the image, Suggest "JPG" format.


RS232/ RS485/ USB Interface 

Image downloading

USB2.0 (12Mbps) & U storage Disk downloading

Voltage Range

DC10.2V ~ 40V (typical value: 12V)


6.0 W

Backlight Type



400 cd/m2(Brightness can be adjustable in 100 levels.)



Backlight life

30000 hours

Viewing Angle

70°/ 70°/ 50°/ 70°(L/R/U/D)

Working Temperature

-20°C ~ +70°C

Working Humidity

55°C, 85%

Storage Temperature

-30°C ~ +80°C

Screen Mode




Size (Inch)

12.1 inch




65536 colors (16 bit)

Viewing Area


Pixel Spacing

0.1905mm×0.0635mm (H×V)

Overall Dimension


Net Weight


TFT Panel

A+ Class Industry Panel

Touch Screen

Industry Level 4 wire resistance
Or without touch screen is optional.



Working Temperature

-20℃~ +70℃

 Air Humidity

60°C, 90%

Continuous Vibration Testing

10-55Hz, 1.5mm, 10G

 Impact Acceleration Testing

6ms, 100G

ESD Testing


Radiation Reliability Testing


12.1 inch TFT LCD Screen Description:


STONE provides an Intelligent HMI solution. The intelligent TFT LCD screen display set since it is embedded with a Cortex-M4 32-bit CPU processor and LCD driver, so you don’t have to re-design the LCD driver anymore. The pictures or audio/video files can be stored in the memory, so you can use any simple MCU to control the display by sending hex commands through the UART port.

The TFT LCD screen display consists of a CPU, TFT drives, flash memory, UART port, power supply, etc. STONE also provides a basic control program and powerful design software (STONE TOOL Box). You can use it to set various functions on the graphical user interface, such as text, figures, curve, image switching, keyboard, progress bar, the slider, dial-up, clock and touch button, data storage, the USB download, video, and audio.

It is very easy for engineers to develop the TFT LCD screen color user interface and touch control functions, which can reduce a lot of development time and cost. 



TFT LCD Screen working principle Video:




STVA121WT-01 TFT LCD Screen Dimensional drawing:






STONE TFT Touch Screen Specifications:


• Cortex m4 CPU;
• UART interface (RS232/RS485/TTL) ;
• 256-byte register;
• 128 kb variable memory;
• 128 MB flash memory, expandable to 1 GB;
• GUI design software;
• The customized command set;
• 8-channel curve trend chart memory;
• extremely fast variable display response speed;
• The single-page supports up to 128 display variables;
• Integrated real-time clock RTC,
• Touch buzzer sound function;
• Support software 90 degrees, 180 degrees, 270-degree screen rotation, adjust the appropriate visual Angle;



STONE TOOL Box(GUI Design software):


STONE TOOLBox (software)


-- Free and easy to use STONE TOOL Box software

-- property value components that can be allocated at run time

-- Drag-and-drop components for GUI design and interaction

-- built-in debugger for HMI project emulation



Sample for the STONE TFT LCD screen developing:


1) Design your own interface with the TOOL software with .jpg files and generate a project file.
2) Download the project file into the STONE TFT screen display by USB, then connect the display with your MCU or other control devices by UART interface (RS232/RS485/TTL).
3) Program your MCU to communicate with the display by the customized command sets.
For example:  Show integer "1234 ", the UART returns the command: 

A5 5A 05 82 00 20 04 D2 


A5 5A: Frame head 
05: command byte length, 83 00 20 04 D2 total 5 bytes (without frame header) 
83: write variable register command 
00 20: Variable address, setting in control properties
04 D2: Data content, 1234 hexadecimal data



Package Including:


1 * STONE HMI 12.1" 800*600 (4:3) TFT screen Module with LCD drive

2 * Transfer board

2 * 8 pin terminal block

2 * 20mm long cable

1 * U disk

1 * USB cable

1 * 5mm short cable

1 * 20mm DB9 cable



STONE authentication and documentation:


- software

- instruction set

- editorial guide

- CE certification

- ROHS certification

- ISO9001 certification

FC certification





       1.  5-YEAR Warranty Period
               Replace by a brand-new Unconditionally

      2.  customizable service.
               a. Customize TFT-LCD Module according to the customer’s requirement.
               b. Develop the customization function.
               c. Optional resolution
               d. Optional luminance


      Optional UART interface type (RS232/RS485/TTL)

      Optional touch control type (resistive/capacitive/non-touch)



Frequently asked questions:


1. What’s the MOQ of STONE product?

A: We accept MOQ 1 piece as the sample order.


2. How can I purchase? What’s the payment method?

A: We accept T/T, credit, PayPal or western union as the payment method.


3. What is the warranty policy for this product?

A: We provide unlimited warranty for our customers. No matter what kind of failure, damage or issue happened during the warranty, STONE will provide you the replacement for free.

STVA series has 4 years warranty.