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protocols

MIPI stands for Mobile Industry Processor Interface.

Other Display Interfaces

1. MIPI-CSI (Camera Serial Interface)

  • Direction: Camera β†’ Processor
  • Also uses MIPI D-PHY (similar electrical layer as DSI).
  • Serial, differential, high-speed.
  • Instead of pixel-out, it’s pixel-in.

2. LVDS (Low-Voltage Differential Signaling)

  • Parallel pixel data serialized over multiple lanes.
  • Widely used in laptops before MIPI-DSI became popular.
  • Lower data rate per lane (~945 Mbps) but can use many lanes.
  • Simpler than DSI (no packet protocol like DSI).

3. eDP (Embedded DisplayPort)

  • Mostly used in laptops and tablets.
  • Based on DisplayPort standard.
  • Packet-based like DSI, but higher bandwidth (multi-Gbps per lane).
  • Supports very high resolutions (4K, 8K).

4. HDMI

  • For external displays/TVs.
  • Packetized video + audio.
  • Higher voltage, not as power-efficient as DSI.
  • Not usually used for mobile internal displays.

5. Parallel RGB / TTL

  • Old-school direct pixel bus (1 wire per color bit + sync signals).
  • Very high pin count, no serialization.
  • Easy to understand but not good for high resolution.

6. SLVS-EC (Scalable Low Voltage Signaling – Embedded Clock)

  • Newer serial interface from Sony and others.
  • Competes with MIPI for camera & display links.
  • Higher speeds than D-PHY in some cases.

πŸ’‘ Main takeaway:

  • MIPI-DSI = optimized for internal mobile/tablet displays, low pin count, low EMI, power-efficient.
  • LVDS and eDP = laptop displays.
  • HDMI = external monitors/TVs.
  • Parallel RGB = simple, low-res systems.

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