E-EDID™ Standard VESA
Video Electronics Standards Association
860 Hillview Court, Suite 150 Phone: (408) 957-9270 Milpitas, CA 95035 Fax: (408) 957-9277 VESA ENHANCED EXTENDED DISPLAY
IDENTIFICATION DATA STANDARD
Relea A, Revision 1
February 9, 2000
Purpo
This standard defines data formats to carry configuration information, allowing optimum u of displays.
Summary
This document describes the basic 128-byte data structure "EDID 1.3", as well as the overall layout of the data blocks that make up Enhanced EDID. The EDID 1.3 data structure is intended to be backward compatible with EDID data structures 1.0, 1.1 and 1.2 as implemented in all commercially available monitors. EDID data structure 1.3 contains enhancements to enable the Dual GTF curve concept. U of EDID extensions described in this document assumes that the addressing method described in the Enhanced DDC standard is ud.
GTF: Generalized Timing Formula
Note
This issue of the EDID document contains specifications for the mandatory core elements of Enhanced EDID. Optional EDID extensions are defined in parate documents.
Preface
Intellectual Property
Copyright © 1994 - 2000 Video Electronics Standards Association. All rights rerved.四六级准考证
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, expresd or implied, of functionality or suitability for any purpo.
Trademarks
All trademarks ud within this document are the property of their respective owners. VESA, DDC, DPMS, EDID, EVC, P&D and VDIF are trademarks of the Video Electronics Standard Association.
I2C is a trademark owned by Philips.
Patents
VESA proposals and standards are adopted by the Video Electronics Standards Association without regard as to whether their adoption may involve any patents or articles, materials, or process. Such adoption does not assume any liability to any patent owner, nor does it assume any obligation whatsoever to parties adopting the proposals or standards documents.
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.
•Fax : 408-957 9270, direct this note to Technical Support at VESA
•e-mail:
•mail: Technical
Support
Video Electronics Standards Association
860 Hillview Court, Suite 150
95035
CA
Milpitas,
Revision History
Relea A September 2, 1999
Initial relea of the standard. The body of the standard is derived from the Extended Display Identification Standard Version 3.0
Relea A Revision 1 February 9, 2000
Consolidate requirements of detailed timing ction in ction 3.10
Section 3.4 - removed restriction of 00h, 00h, 00h, 00h value for rial number field
Table 3.11 - added note to reference preferred timing mode bit requirements
Table 3.15 - added note for 1:1 aspect ratio in earlier EDID definitions
iplTable 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
Acknowledgments
This document would not have been possible without the efforts of the VESA Display Committee. In particular, the following individuals and their companies contributed significant time and knowledge to this edition, and/or previous editions of the EDID document.
Anders Frisk Nokia Jack Hok NEC
Bob Myers HP Richard Atanus NEC
Don Panell Joe Goodart Dell
Hans van der Ven Panasonic Bill Milford 3dfx
Geoff Gould Intel Ian Miller IBM
Rick Stoneking Microchip Shaun Kerigan IBM职责英文
Glenn Adler Philips Ed Anwyl IBM
Chuck Scott Microsoft Anthony Cianfarano Mitsubishi
Alain d’Hautecourt Viewsonic Ton Wang Hitachi
Warren Whaley Canon John Matsumoto Toshiba
Drew Loucks Elo Touchsystems
Table of Contents
REVISION HISTORY (3)
1. OVERVIEW (5)
1.1 S UMMARY (5)
1.2 B ACKGROUND (5)
1.3 S TANDARD O BJECTIVES (5)
1.4 R EFERENCE D OCUMENTS (5)
2. DATA FORMATS (6)
2.1 D ESCRIPTION OF PRESENT AND EARLIER EDID DATA FORMATS (6)
2.1.1 EDID
1.0 (6)
1.1 (6)
2.1.2 EDID
6级考试
2.1.3 EDID
1.2 (6)
1.3 (6)
2.1.4 EDID
漂亮男孩英文版
2.0 (6)
2.1.5 EDID
2.2 E NHANCED EDID (6)
2.2.1 Enhanced EDID High Level Layout (7)
3. EXTENDED DISPLAY IDENTIFICATION DATA (EDID) STRUCTURE VER. 1 REV. 3 (9)
3.1 EDID F ORMAT O VERVIEW (9)
3.2 D ATA F ORMAT C ONVENTIONS (10)
3.3 H EADER:8 BYTES (11)
3.4 V ENDOR/P RODUCT ID:10 BYTES (11)
3.5 EDID S TRUCTURE V ERSION /R EVISION:2 BYTES (12)
3.6 B ASIC D ISPLAY P ARAMETERS AND F EATURES:5 BYTES (12)
3.7 P HOSPHOR OR F ILTER C HROMATICITY:10 BYTES (14)
3.8 E STABLISHED T IMINGS:3 BYTES (15)
3.8.1 EDID Established Timings Section (15)cond love
3.9 S TANDARD T IMING I DENTIFICATION (16)
3.9.1 EDID Standard Timings Section (16)
3.10 D ETAILED T IMING S ECTION -72 BYTES (17)
3.10.1 First Detailed Timing Descriptor Block (17)
3.10.2 Detailed Timing Descriptor - 18 bytes (18)
3.10.3 Monitor
Description - 18 bytes (19)
Descriptor
3.11 E XTENSION F LAG AND C HECKSUM (22)
3.12 N OTE R EGARDING B ORDERS (23)
4. EDID EXTENSIONS (24)
5. TIMING INFORMATION PRIORITY ORDER (24)
6. APPENDIX A - SAMPLE EDID (25)
6.1 EXAMPLE1.E NHANCED EDID SAMPLE WITH S RGB AND S ECONDARY GTF (25)
6.2 E XAMPLE 2-L EGACY EDID EXAMPLE FOR REFERENCE (28)
7. APPENDIX B - ANSWERS TO COMMONLY ASKED QUESTIONS (31)
1.OVERVIEW
1.1Summary
The Extended Display Identification Data (EDID) described in this document, is a data structure, with
optional variants, to allow the display to inform the host about its identity and capabilities. The EDID data structure is independent of the communication protocol ud between the monitor and host.
est time
Enhanced EDID defines a basic data structure of 128 bytes that all compliant monitors must supply, as well as the rules for how extensions can be added to the basic structure.
spy
Enhanced EDID family of documents:
1 Enhanced EDID Standard (Basic 128-byte data structure. Rules for how EDID extensions are mapped.)
2 Optional EDID Extension Standards (Data structure for additional data contained in EDID extensions.)
2.1EDID Structure 2 Extension
2.2Flat Panel Timings Extension
2.3Color transfer function Extension
2.4…future extension structures not yet defined
1.2Background
Enhanced EDID was created to clarify how EDID Extensions shall be ud in order to handle identification of future monitor capabilities, while maintaining a basic level of compatibility that can be ud to uniquely identify the monitor. Enhanced EDID is intended to superde all previous versions of EDID.
1.3Standard Objectivesoverwhelming
The EDID Standard was developed by VESA to meet, exceed and/or complement certain criteria. The criteria are t forth as Standard Objectives as follows:
•Support Microsoft® Plug and Play definition
•Provide information in a compact format to allow the graphics subsystem to be configured bad on the capabilities of the attached display公费留学
1.4Reference Documents
Note: Versions identified here are current, but urs of this standard are advid to ensure they have the latest versions of referenced standards and documents.
