EDID1.4SPEC文字版(ReleaseArevision2)_edid

EDID

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VESA Enhanced EDID Standard Release A, Rev.2

E-EDID Standard

860 Hillview Court, Suite 150 Phone: (408) 957-9270

Milpitas, CA 95035 Fax: (408) 957-9277

URL: www.vesa.org

VESA ENHANCED EXTENDED DISPLAY

IDENTIFICATION DATA STANDARD

(Defines EDID Structure Version 1, Revision 4)

Release A, Revision 2

September 25, 2006

Purpose

The E-EDID Standard defines a remotely readable (read by a source) data file stored in an electronic

display. The data in this file identifies the characteristics, features and video timing modes supported by

the display product. The purpose of this standard is to describe the B

ASE (block 0) 128-byte data

structure "EDID 1.4" (shorthand for EDID Version 1, Revision 4), as well as the overall layout of the

data blocks that make up Enhanced EDID. This document specifies the E

LEMENTS, data structures and

file formats used to organize and store this data. The contents of this data file are used by a video source

to configure its graphics processing unit to generate correctly formatted video for the display and to

provide additional information for certain application programs.

Summary

This revision to the E-EDID Standard adds support for Consumer Electronic Products (Model Year and

Aspect Ratio) and PC Products (CVT {Coordinated Video Timing}, Established Timings III,

Additional Video Interfaces, Expanded Display Range Limits, optional Product Features and Timing

Mode Priorities). This document contains specifications for the mandatory and optional elements of

BASE EDID. These data formats are designed to support both computer based products and digital

television products. Optional EDID E

XTENSIONs are defined in separate VESA & CEA Standards.

Note: This document supersedes all previous versions of the EDID and E-EDID Standards.

The EDID 1.4 structure is intended to be backward compatible (key E

LEMENTS only) with EDID

structures 1.0, 1.1, 1.2 and 1.3 as implemented in most commercially available displays.

This document contains specifications for the mandatory core E

LEMENTS of Enhanced EDID. Optional

EDID extensions are defined in separate documents. Use of EDID extensions described in this

document requires that the addressing methods described in the E-DDC (Enhanced Display Data

Channel) Standard are used.

VESA Enhanced EDID Standard Release A, Rev.2

Preface

Intellectual Property

While every precaution has been taken in the preparation of this standard, the Video Electronics

Standards Association and its contributors assume no responsibility for errors or omissions, and make

no warranties, expressed or implied, of functionality or suitability for any purpose

Trademarks

All trademarks used within this document are the property of their respective owners. VESA, DDC, E-

DDC, DPMS, DPM, EDID, E-EDID, EVC, P&D, VDIF, GTF, CVT, VTB-EXT, DI-EXT and

DisplayPort are trademarks of the Video Electronics Standards Association.

C is a trademark owned by Philips.

Patents

VESA draws attention to the fact that it is claimed that compliance with this specification may involve

the use of a patent or other intellectual property right (collectively, “IPR”).. VESA takes no position

concerning the evidence, validity, and scope of this IPR.

Attention is drawn to the possibility that some of the elements of this VESA Specification may be the

subject of IPR other than any identified above. VESA shall not be held responsible for identifying any

or all such IPR, and has made no inquiry into the possible existence of any such IPR.

THIS SPECIFICATION IS BEING OFFERED WITHOUT ANY WARRANTY WHATSOEVER,

AND IN PARTICULAR, ANY WARRANTY OF NON-INFRINGEMENT IS EXPRESSLY

DISCLAIMED. ANY IMPLEMENTATION OF THIS SPECIFICATION SHALL BE MADE

ENTIRELY AT THE IMPLEMENTER’S OWN RISK, AND NEITHER VESA, NOR ANY OF ITS

MEMBERS OR SUBMITTERS, SHALL HAVE ANY LIABILITY WHATSOEVER TO ANY

IMPLEMENTER OR THIRD PARTY FOR ANY DAMAGES OF ANY NATURE WHATSOEVER

DIRECTLY OR INDIRECTLY ARISING FROM THE IMPLEMENTATION OF THIS

SPECIFICATION.

Support for this Standard

Clarifications and application notes to support this standard may be written. To obtain the latest

standard and any support documentation, contact VESA.

If you have a product, which incorporates EDID, you should ask the company that manufactured your

product for assistance. If you are a manufacturer, VESA can assist you with any clarification you may

require. All comments or reported errors should be submitted in writing to VESA using one of the

following methods.

 Phone: 408-957 9270

 Fax: 408-957 9277, direct this note to Technical Support at VESA

 E-mail: support@vesa.org

 Mail: Technical Support

Video Electronics Standards Association

860 Hillview Court, Suite 150

Milpitas, CA 95035

VESA Enhanced EDID Standard Release A, Rev.2

Revision History

Release A September 2, 1999

Initial release of the standard. The body of the standard is derived from the EDID Standard Ver. 3.0.

Release A Revision 1 February 9, 2000

Consolidate requirements of detailed timing section in section 3.10

Section 3.4 - removed restriction of 00h, 00h, 00h, 00h value for serial number field

Table 3.11 - added note to reference preferred timing mode bit requirements

Table 3.15 - added note for 1 : 1 AR (aspect ratio) in earlier EDID definitions

Table 3.16 – corrected order of bits in Vertical Sync format description

Table 3.17 - added definition for stereo flag bits values of 0,0,x

Table 3.20 - added clarification to round up Max pixel; clock value

Release A Revision 2 September 25, 2006

Preface - Added a Conformance Glossary for definitions of terms and notations.

Added a List of Tables.

Section 1 Overview - Revised Summary in Section 1.1 and added Scope in Section 1.2.

Section 1.5 Reference Documents - Revised list and partitioned into Section 1.5.1 Normative

Documents and Section 1.5.2 Reference Documents.

Section 2 EDID Structures - Added Table 2.1 History of EDID Structures in Section 2.1; added Table

2.2 Comparison of EDID Structures (defines required, optional and recommended elements of EDID

data structures 1.0 to 1.4) and added Section 2.1.7 Compatibility of EDID 1.x Structures.

Section 2.2 EDID Extension Blocks - Revised/added the following:

Section 2.2.1 Order of EDID Extension Blocks - note that Block Maps are now optional;

Section 2.2.2 General Extension Block Format;

Section 2.2.3 EDID Block Map Extension and

Section 2.2.4 EDID Extension Tags Assigned by VESA.

Section 3.1 EDID Format Overview - Updated contents of Table 3.1.

Section 3.4.1ID Manufacturer Name - Updated PNPID Contact Information.

Section 3.4.4 Week & Year of Manufacture - Added option to declare Model Year.

Section 3.6.1 Video Input Definition -Added Color Bit Depth declaration to Digital Video Interfaces

and updated Supported Digital Interfaces.

Section 3.6.2 H & V Screen Size - Added option to declare Screen Aspect Ratio (Portrait or Landscape)

in place of H & V Screen Size.

Section 3.6.4 Feature Support Byte - Added Supported Color Encoding Formats; Replaced Preferred

Timing Mode (PTM) Bit with PTM includes or does not include Native Pixel Format/Preferred Refresh

Rate of the display device and replaced GTF Bit with Continuous or Non-Continuous Frequency

Display.

Section 3.10 - 18 Byte Descriptors - Changed terminology, formally known as Detailed Timing

Descriptor Block.

Section 3.10.2 Detailed Timing Descriptor - Added option to include aspect ratio for DTV timing

modes; included definitions for Analog Composite, Bipolar Analog Composite, Digital Composite &

Digital Separate.

Section 3.10.3.3 Display Range Limits - formally known as Monitor Range Limits – increased range by

adding optional Display Range Limits Offsets and added optional GTF (default), GTF (secondary

curve) & CVT Support Information.

Section 3.10.3.7 Color Management Data - Added optional short hand CMD definition.

Section 3.10.3.8 3 Byte CVT Codes - Added optional 3 Byte CVT Codes.

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