LCD liquid crystal display PCB circuit board

Overview of LCD

LCD – liquid crystal display, that is, the display. LCD is a typical three-layer structure used in various electronic devices.

Structure of LCD

LCD is a typical three-layer structure in which the liquid crystal is placed between two parallel sheets of glass.

Components of LCD Structure

• Glass Sheets: Two parallel sheets of glass serve as the foundation.
• Crystal Molecules: Between the two pieces of glass, there are many small vertical and horizontal lines. The rod-shaped crystal molecules are crucial for display functionality.

Functionality of LCD

The direction of the rod-shaped crystal molecules is changed by a voltage. This change causes the light to refract, and subsequently, the picture is displayed.

Mechanism of Display

• Voltage Application: Applying a voltage alters the direction of the crystal molecules.
• Light Refraction: The altered direction of the molecules refracts light, resulting in the display of an image.