LVDS-dat

general LVDS interface LCD

LVDS (Low-Voltage Differential Signaling) is an electrical signaling standard, not a specific video protocol.
Whether it’s "parallel" or "serial" depends on how it’s used:

In Display Interfaces

  • Old PC laptop panels (LVDS display interface) use serialized pixel data:
    • Pixel data from a parallel RGB bus is serialized into multiple LVDS lanes.
    • Typically, 3 data pairs + 1 clock pair for single link (supports up to ~1366×768).
    • 6 data pairs + 1 clock pair for dual link (for higher resolutions like 1920×1080).
    • Each LVDS lane still carries data in a parallel-to-serial fashion internally.

Key Points

  • LVDS = Serial differential transmission (each lane is serial).
  • LVDS display interface = multiple serial lanes operating in parallel (multi-lane serial).
  • Main goal: lower EMI, higher speed, longer cable runs vs. raw parallel RGB.

Summary Table

Aspect LVDS (as used in displays)
Signal Type Differential
Transmission per lane Serial
Overall interface Multiple serial lanes in parallel
Typical Usage Laptop screens, industrial monitors
Speed per lane Hundreds of Mbps

chip

ref