Open-LDI -- Open LVDS Display Inteface Standard Specification Home->Display Solutions

Open LDI - Open LVDS Display Interface Standard Specification

The Open LVDS Display Interface (Open LDI) provides a high bandwidth, robust, economical digital interface for high-resolution flat panel monitors. LDI is based on the de-facto industry standard "FPD-Link" which is used in the majority of SVGA and XGA based Notebook and Sub-notebook computers today. LDI offers the same benefits to monitor applications as it does to notebooks. These include high bandwidth data transmission, low noise generation (emi), high noise rejection, and low power dissipation. LDI includes three enhancements over FPD-Link to extend the cable drive capability to over 5-10 meters of low cost twisted pair cabling. Both FPD-Link and LDI are based on the proven LVDS (Low Voltage Differential Signaling) physical layer standard: ANSI/TIA/EIA-644.

The "Open" of Open LDI represents the spirit of which this standard has been developed. It represents the efforts of multiple Semiconductor, TFT-LCD Panel, System, Connector, and Cable manufacturers to provide the industry with a economical, robust, high bandwidth digital interface that supports panel resolutions for today's and tomorrow's applications which include XGA, SXGA, UXGA, HDTV, and QXGA panel resolutions. The Open LDI group had the foresight to specify and recommend to the industry the following items that have shaped the future of Digital Display Interfaces:

  • Muxing / Demuxing of the VGA's Digital Interface to reduce
    the interconnect size and cost
  • The use of LVDS signaling to raise transmission rates while
    reducing emi and power dissipation
  • The "All Digital" panel interface
  • The Dual-Pixel interface for the best balance of bit widths vs. bandwidth

The Open LDI Standard to available to the Industry on this web site. The complete Specification is located on this site below and is freely available for downloading. While the Specification is freely available, no license from the Promoter or other Adopters is granted until an Adopters Agreement is signed. See the notes below to find out how to become an Adopter.
OpenLDI Standard V0.95

For the Adopters Agreement:
To become an Adopter of the Open LDI Standard, follow the instructions below:
All of those who wish to practice the Open LDI Standard are invited to become Adopters of the Standard. Adopters receive a license from the Promoter and other Adopters to any Necessary Claims, as defined in the Adopters Agreement, and grant a similar license back. To become an Adopter, download and print out the Adopters Agreement below, have an authorized official of your company sign the Agreement and either mail two (2) signed copies back to the Adopter at the address in the Agreement, or FAX back a signed copy of the Agreement to the Adopter at the FAX number in the Agreement.
PDF Adopters Agreement

WHAT'S NEW
FPD Products
  • DS90UR905Q / DS90UR906Q - 5-65 MHz 24-bit Color FPD-Link II Serializer/Deserializer Chipset (LVCMOS parallel bus)
  • DS90UR907Q / DS90UR908Q - 5-65 MHz 24-bit Color FPD-Link II Serializer/Deserializer Chipset (LVDS parallel bus)
  • 5-43 MHz DC- Balanced 24-Bit LVDS Serializer and Deserializer
  • 5-35 MHz DC-Balanced 24-Bit LVDS Serializer and Deserializer
  • MPL-2 RGB Display Differential Interface Serializer with Optional Dithering and Look Up Table
  • MPL-2 RGB Display Differential Interface Deserializer
  • MPL-2  18-bit CPU Display Interface Master/Slave

 

 

FPD Application Notes
  • AN-1898  LVDS Repeaters and Crosspoints Extend the Reach of FPD-Link II Interfaces
  • AN-1826  Extending the Reach of a FPD-Link II Interface with Cable Drivers and Equalizers (103 KBytes)
  • AN-1807  FPD-Link II Display SerDes Overview (103 KBytes)
  • AN-1613  Extending the Reach of HDMI, DVI and CAT5 Cables Using the DS16EV5110 Cable Equalizer (6 MBytes)
  • AN-1311  MPL PHY Layer Overview (151 KBytes)

See all displays products app notes.

 

FPD Articles
Analog University eLearning


MY BRIEFCASE                                         Remove all from My Briefcase 
Click any "Briefcase" icon to add an item