White Paper: LVDS Flat Panel Display Interface on Intel Desktop Boards

White Paper: LVDS on Intel Desktop Boards

1 Introduction

LVDS flat panel displays are common in the industry because they are the building

block for all modern flat panel monitors. The interface for such displays, however, is

not standardized and, as a consequence, Intel Desktop Boards with direct LVDS flat

panel connectivity follow a specific implementation.

Furthermore, system EMC certification is highly dependent on the target chassis.

While select Intel Desktop Boards with an LVDS interface are tested against EMI

compliance with the interface fully operational, the actual EMC certification of the

desktop board is performed using standard “off-the-shelf” desktop-style chassis which

do not accommodate LVDS panels. These desktop boards are, therefore, shipped from

the factory with the LVDS flat panel display interface disabled in order to comply with

EMC regulations.

Enabling the LVDS flat panel display interface is a system integrator option and is only

supported as a joint effort with system integrators using LVDS flat panel displays in

their system designs. System integrators (or resellers) enabling the LVDS interface as

part of their product lineup own the support and EMC certification of such system (or

potential system) for end-users.

1.1 Overview

Select Intel Desktop Boards may support a local flat panel display via onboard LVDS

connectivity. Such implementation of the LVDS flat panel display interface can enable

a wide range of display panels for maximum flexibility when defining All-in-One system

configurations.

Table 1 summarizes the major features of the L

DS flat panel display interface

implementation on select Intel Desktop Boards.

Table 1. LVDS Interface on Select Intel Desktop Boards

Panel Connectivity 30-pin header (data, clock, EDID and panel logic power)

Panel Power Voltage selection jumper for 3.3 V/5 V/12 V panel voltage support

Inverter Connectivity

7-pin header supporting backlight lamp PWM control and inverter power

Inverter Power

Voltage selection jumper for 5 V/12 V backlight inverter voltage support