Customized TN LCD Segment Screen Transmissive White Backlight 4.5V 24PIN

A TN segment LCD (Twisted Nematic Segment Liquid Crystal Display) is a type of passive matrix LCD technology that is custom-made with fixed segments, commonly used in simple, low-cost electronic displays. 

How It Works

• Segments are created in fixed patterns (e.g., 7-segment digits, battery icons, arrows).

• Liquid crystals twist under an applied voltage, allowing or blocking light through polarized filters.

• Only the predefined segments can be turned ON or OFF—no pixel-level control like dot-matrix displays.

Interface

• Typically driven by direct drive (if few segments) or multiplexed drive (for many segments).

• Driven by microcontrollers or LCD driver ICs like:

  • HT1621 (for multiplexed)

  • PCF8576, ST7032, etc.

• Signals: Common (COM) and Segment (SEG) lines.

Detailed Parameters:

Why TN LCDs Are Chosen for These Products

• Very Low Power Consumption (great for battery devices)

• Simple Interface (static or multiplexed)

• Inexpensive to Produce

• Fast Response Times (compared to other passive types)

• Customizable Segment Layouts

Main Product Applications of TN LCDs

• Digital Watches

• Calculators

• Remote Controls

• Thermometers / Hygrometers

• Electronic Scales

• Home Weather Stations

• Pedometers / Fitness Devices

• Electronic Toys