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DisplayID是VESA（Video Electronics Standards Association）推出的一种标准，用于定义显示设备配置信息的数据格式。这个标准的目的是简化并优化视频接口和图像信号的设置，使得显示设备能够实现即插即用的功能，减少或无需用户手动干预。DisplayID标准的1.3版本是在2013年7月5日发布的，它是对之前所有版本的Extended Display Identification Data (EDID)标准的升级和替代。 DisplayID标准的核心在于它提供了一个简单紧凑的数据结构，这个数据结构可以存储在显示器产品内部的一个文件中，并通过视频接口连接供主机访问。主机通过读取这些数据，可以自动识别显示器的型号、特定单元信息、色度、基本功能支持以及支持的时序和格式，从而自动调整自身以达到最佳的显示支持。 DisplayID标准的1.3版包含了多项新特性，使其能适应更广泛的应用场景，如PC显示器、消费电视产品、嵌入式显示器（例如笔记本LCD面板）以及其他各种显示设备。相比于第一代的EDID，DisplayID提供了更大的灵活性和扩展性。基础DisplayID结构是一个可变长度的数据块，最大可达256字节。此外，DisplayID标准还允许添加额外的可变长度数据块，称为“DisplayID扩展”，每个扩展也最多可以是256字节。这种设计使得DisplayID能够包含更多详细的信息，比如高级色彩管理、多流传输支持、高分辨率和刷新率等特性，以满足不同显示设备和应用场景的需求。 DisplayID标准的实现通常依赖于VESA的Enhanced Display Data Channel (E-DDC)，这是一个通信协议，允许主机通过I²C总线与显示器交换信息。通过E-DDC，主机可以读取DisplayID数据并据此进行显示设置，确保兼容性和最佳性能。 DisplayID 1.3标准是现代显示系统中不可或缺的一部分，它提升了显示设备与主机之间的通信效率，简化了用户的操作流程，同时也为制造商提供了更大的灵活性来定义和展示其产品的独特功能。随着显示技术的不断发展，DisplayID标准将继续演进，以适应新的显示技术和市场需求。

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VESA DisplayID Standard Version 1.3

39899 Balentine Drive, Suite 125 Phone: 510 651 5122

Newark, CA 94560 Fax: 510 651 5127

VESA

Display Identification Data (DisplayID) Standard

Version 1.3

July 5, 2013

Purpose

This standard defines flexible data formats that organize interface and display configuration information

in a file stored in a display product. A host has access to the file over the video interface connection. The

host uses this data to automatically setup and optimize the video interface and image signals facilitating

plug and play operation with minimal or no user intervention.

Summary

This document describes the second-generation version of the VESA Extended Display Identification

Data (EDID) standard, now referred to as DisplayID. This standard is intended as a replacement for all

previous EDID versions. It contains several new features which better permit its use in a wide range of

applications; including PC monitors, consumer television products, embedded displays (e.g., notebook

LCD panels) and other display products. As in the original EDID Standards, the intent is to provide a

simple, compact data structure allowing information about the display currently in use by the system,

including model and specific unit identification information, colorimetry, basic feature support, and

supported timings and formats, to be supplied to the host video source over an appropriate

communications channel, such as VESA E-DDC. This information may then be used by the source to

automatically configure itself for optimum support of the display in question. The basic structure (or base

DisplayID) as defined by this standard is a variable length block of data of up to 256-bytes. It also permits

additional variable length blocks of up to 256-bytes, or “DisplayID Extensions,” to be added to the base

structure in those applications where it is desirable that additional information be provided by the display.

In version 1.2 of the standard, all of the 1.0 DisplayID feature set is retained and a provision to define a

fixed length DisplayID section has been added. Furthermore, usage of DisplayID sections as an extension

block to a base EDID structure is permitted to facilitate gradual transition to DisplayID from EDID.

Note: The DisplayID definition is not directly backward compatible with earlier EDID/E-EDID definitions, but does

carry over many data field definitions from those earlier standards. Several significant changes have been made,

however, and readers are strongly encouraged to familiarize themselves thoroughly with this document before

attempting to implement systems based on the VESA DisplayID Standard.

VESA DisplayID Standard Version 1.3

Table of Contents

Preface 7

Acknowledgements 8

Revision History 11

1 Overview 12

1.1 Summary 12

1.2 Background & Changes from Previous EDID Definitions 12

1.3 Standard Objectives 13

1.4 Reference Documents 13

1.5 General Notes 14

1.6 Terminology 14

1.7 Data Format Conventions 15

1.8 Conflicts between DisplayID and Interface Related Configuration Data 15

2 DisplayID Structure and Format Definition 16

2.1 Structure Version/Revision 18

2.2 Section Size 18

2.3 Product Type Identifier 19

2.4 Extension Count/ Section Flag 19

2.5 Checksum 19

3 Data Blocks – Description and Usage 21

3.1 Data Block Format and Definitions 22

4 Data Block Definitions 24

4.1 Product Identification Data Block 24

4.1.1 Manufacturer/Vendor ID 25

4.1.2 Product Code 25

4.1.3 Serial Number 25

4.1.4 Week and Year of Manufacture/Model Year 26

4.1.5 Size of Product ID String 26

4.1.6 Product ID String 26

4.2 Display Parameters Data Block 27

4.2.1 Image Size 27

4.2.2 Horizontal and Vertical Pixels (Native Format) 28

4.2.3 Feature Support Flags 28

4.2.4 Transfer Characteristic Gamma 29

4.2.5 Aspect Ratio 29

4.2.6 Color Bit Depth 30

4.3 Color Characteristics 30

4.3.1 Primary Definition and Ordering 31

4.3.2 White Point Definition and Ordering 32

4.3.3 Data Format 32

4.3.4 Standard Color Space Identification 32

4.4 Video Timing Modes 33

4.4.1 Type I Timing – Detailed 34

4.4.2 Type II Timing – Detailed 37

4.4.3 Type III Timing – Short 39

4.4.4 Type IV Timing – DMT ID Code 40

4.4.5 Type V Timing – Short Descriptor 41

4.4.6 Type VI Timing – Detailed Descriptor 42

4.5 Supported Standard Timing Modes 44

4.5.1 VESA Timing Standard 44

4.5.2 CEA Timing Standard 47

VESA DisplayID Standard Version 1.3

4.6 Video Timing Range Limits 49

4.6.1 Minimum Pixel Clock 50

4.6.2 Maximum Pixel Clock 50

4.6.3 Minimum Horizontal Frequency 50

4.6.4 Maximum Horizontal Frequency 50

4.6.5 Minimum Horizontal Blanking 50

4.6.6 Minimum Vertical Frequency 50

4.6.7 Maximum Vertical Frequency 50

4.6.8 Minimum Vertical Blanking 50

4.7 Product Serial Number 51

4.8 General Purpose ASCII String 51

4.9 Display Device Data 52

4.9.1 Display Device Technology 53

4.9.2 Display Device Operating Mode & Flags 54

4.9.3 Device Native Pixel Format 55

4.9.4 Physical Aspect Ratio and Orientation 55

4.9.5 Sub-pixel Information (Layout/configuration) 57

4.9.6 Horizontal and Vertical Dot or Pixel Pitch 57

4.9.7 Color Bit Depth 58

4.9.8 Response Time 58

4.9.9 Sub-pixel Layout Examples 59

4.10 Interface Power Sequencing Data Block 64

4.11 Transfer Characteristics Data Block 65

4.12 Display Interface Data Block 71

4.12.1 Interface Type/Number of Links or Channels 71

4.12.2 Interface Standard Version and Release Number 72

4.12.3 Supported Interface Color Depth 73

4.12.4 Supported Content Protection 74

4.12.5 Content Protection Standard Version and Release Number 74

4.12.6 Spread Spectrum Information 74

4.12.7 Interface Type Dependent Attribute 75

4.13 Stereo Display Interface Data Block 77

4.13.1 Stereo Interface Method Code 79

4.13.2 Field Sequential Stereo 79

4.13.3 Side-by-side Stereo 80

4.13.4 Pixel Interleaved Stereo 80

4.13.5 Dual Interface Left and Right Separate 81

4.13.6 Multi-view 82

4.13.7 Stacked Frame Stereo 82

4.13.8 Proprietary Stereo Interface Methods 83

4.14 Tiled Display Topology Data Block 84

4.14.1 Tiled Display and Tile Capabilities 85

4.14.2 Tiled Display Topology 86

4.14.3 Tile Location 87

4.14.4 Tile Size 88

4.14.5 Tile Pixel Multiplier & Tile Bezel Information 88

4.14.6 Tiled Display Topology ID 89

4.15 Vendor-Specific Data Block 90

5 Appendix A: DisplayID Example 92

5.1 DisplayID Example 1 (Version 1.0) 92

5.2 DisplayID Example 2 (Version 1.1) 94

6 Appendix B: DisplayID as an EDID Extension 98

7 Appendix C: CEA Data Block within a DisplayID Data Block 101

VESA DisplayID Standard Version 1.3

Tables

Table 1-1: Normative References 13

Table 1-2: Informative References 13

Table 1-3: Data Format Conventions 15

Table 2-1 : Variable Length DisplayID Section Structure 16

Table 2-2: Fixed Length DisplayID Section Structure 17

Table 2-3: DisplayID Base Structure Review 17

Table 2-4: DisplayID Extension Structure Review 18

Table 2-5: DisplayID Structure Version and Revision 18

Table 2-6: DisplayID Section Size 19

Table 2-7: DisplayID Product Type Identifier 19

Table 2-8: DisplayID Extension Count/Section Flag 19

Table 2-9: DisplayID Checksum 20

Table 3-1: Data Block Tag Allocation 21

Table 3-2: Data Block Format 22

Table 4-1: Product Identification Data Block 24

Table 4-3: Product ID Code Format 25

Table 4-4: Serial Number Format 26

Table 4-5: Week & Year of Manufacture or Model Year Format 26

Table 4-6: Product ID String and Size 27

Table 4-7: Display Parameters Data Block 27

Table 4-8: Image Size 28

Table 4-9: H & V Pixels (Native Format) 28

Table 4-10: Feature Support Flags 28

Table 4-11: Transfer Characteristic 29

Table 4-12: Aspect Ratio 29

Table 4-13: Color Bit Depth 30

Table 4-14: Color Characteristics Data Block Structure 30

Table 4-15: Ten-bit Binary Fraction Representation (Examples) 32

Table 4-16: Standard Color Space Identification 32

Table 4-17: Video Timing Modes Data Block 33

Table 4-18: Type I ‘Detailed’ Timing Data Block 34

Table 4-19: Type I Detailed Timing Descriptor 34

Table 4-20: Type II Detailed Timing Data Block 38

Table 4-21: Type II Detailed Timing Descriptor 38

Table 4-22: Type III Short Timing Data Block 39

Table 4-23: Type III Short Timing Descriptor 39

Table 4-24: Type IV Short Timing Data Block 40

Table 4-25: Type V Short Timing Data Block 41

Table 4-26: Type V Short Timing Descriptor 41

Table 4-27: Type VI ‘Detailed’ Timing Data Block 42

Table 4-28: Type VI Detailed Timing Descriptor 42

Table 4-29: Supported Video Timing Modes Data Block 44

Table 4-30: Supported VESA Timings Standard Data Block 45

Table 4-31: Supported CEA Timing Standard Data Block 47

Table 4-32: Video Timing Range Limits Data Block 49

Table 4-33: Serial Number Data Block 51

Table 4-34: General-Purpose ASCII String Data Block 52

Table 4-35: Display Device Data Block 52

Table 4-36: Display Device Technology & Sub-type Codes 53

Table 4-37: Device Operating Modes Codes (upper four bits of byte 04h) 54

剩余105页未读，继续阅读

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m0_37906002

2024-08-05

该资源有助于理解 EDID 以及理解 VESA 、CTA两个割裂的组织标准
li1987lele

2024-08-12

官方资料。值得学习，需要进一步深入了解
光与火花

2023-07-24

这本PDF文件对于熟悉DispID的读者来说，是一个有价值的资料。
宏馨

2023-07-24

总的来说，这个文件对于涉及到DispID的工作来说是一个值得阅读的资源。
禁忌的爱

2023-07-24

这本PDF文件包含了一些实用的示例，可以帮助读者更好地应用DispID。

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