LK204-25-USB-GW-E

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Application Field

The LK204-25-USB-GW-E display module is a four-line, 25-character Liquid Crystal Display (LCD), which can provide a low power and compact solution for applications in embedded systems, as well as in any project that requires an inexpensive LCD display.

The module is ideally used for applications that require the user to operate on a graphical user interface (GUI). A good example of this is in the industrial automation sector, where a programmable logic controller (PLC) or a distributed control system (DCS) controls the operation of machines used in production or other processes. The LCD can present the user with a GUI that allows them to operate the system without needing to read a manual thoroughly or have previous experience in the operation of the machine.

The LK204-25-USB-GW-E display module also has applications in consumer products where a low power, low cost display is needed. It can be used in equipment such as portable digital media players, small home appliances, medical devices and even consumer electronics, making it an ideal choice for a variety of consumer applications.

Working Principle

The LK204-25-USB-GW-E display module utilizes a liquid crystal display (LCD) to produce images on a screen. The LCD is made up of two sheets of polarizing material with a liquid crystal solution between them. The two sheets are made up of two transparent electrically conductive coating on the glass and polarizing film. When an electric current is applied to the liquid crystal solution, the molecules of the liquid crystal align, causing the polarization of light passing through it. This allows light to be blocked in certain areas, producing an image on the screen.

The display module also uses a LED backlight to ensure that the display is visible in low light conditions. The LED backlight is made up of a reflective layer and an LED that is connected to a power supply. The LED light provides illumination to the liquid crystal solution, enabling the display to be visible even in low light conditions. The module also includes a programming controller which enables the user to output the desired image and text onto the LCD.

The programming controller is based on the HD44780 controller and is used to provide commands and control logic for the output of the LCD. The controller contains a set of internal characters which can be used to create simple images or text on the LCD. This helps to make it easy for the user to operate the display module.

Overall, the LK204-25-USB-GW-E display module is a great choice for any project that requires an inexpensive LCD display. The low power consumption and easy programming make it an ideal choice for a variety of consumer and industrial applications.

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