LK204-25-422-R-E

The LK204-25-422-R-E is a type of LCD display module with a character of 4-bit, 20-character, and a red LED backlight. It is often used for embedded control systems, and also for data displays in various industrial and medical applications. This article will provide more detailed information about the application field and working principle of this display module.

Application field of the LK204-25-422-R-E

The LK204-25-422-R-E is a 6.2 x 3.2 cm LCD module with 4-bit, 20-character built-in controller, which is low power consumption, low profile, and is immediately ready-to-use. It is popularly applied to embedded control systems because of its bright red LED backlight and 5x8-dot display. With its powerful performance and low cost, it is also suitable for commercial applications, such as ATM machines, vending machines, gaming machines, medical equipment, and many other equipments, which need to display data such as numeric and alphabets.

Working principle of the LK204-25-422-R-E

The working principle of LK204-25-422-R-E involves communications between the host and the display. This display module is equipped with a RS-232 or TTL serial interface, and therefore communication is done via serial commands. There are some protocols such as SPI, I2C, and UART, which is implemented in this module. After the communication is established, the host can control the display module, with the help of 8 bit registers.

The 8 bit registers control the coordinates, brightness, contrast and also the color of the screen for the LK204-25-422-R-E module. The host can set and adjust these parameters to display the required data on the screen, for instance in the form of numerals and characters. Furthermore, this display module is also capable of managing the specialized symbols, such as making a traffic sign or an icon on the display.

Conclusion

The LK204-25-422-R-E display module is recognized for its low-cost, low-power consumption, high brightness and flexible operations. It is popularly applied in embedded control systems, commercial usages and many other applications. The module provides 8-bit data registers and a serial interface to receive commands from the host, controlled by the registers. Through these functions, this module is able to display whatever the host needs, such as characters, symbols, and even customized versions.