Display EDID Standard Selection for Video Source Compatibility

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Solution Overview

Problem

Current display technologies cannot support multiple EDID standards simultaneously, limiting the availability of display features for users.

Innovation Solution

A display device with on-screen display (OSD) control allows users to select from a list of EDID standards, enabling the formatting and transmission of EDID data based on user preference, including support for multiple standards and custom or proprietary formats.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a display device supports only a single EDID standard, then the device complexity is reduced and ease of manufacture is improved, but the adaptability to different video sources is limited

Engineering Contradiction:

Improvesupport for multiple EDID standardsVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display device is designed to support multiple EDID standards (VESA E-EDID, VESA Display-ID, and CEA) within a single device. The system includes multiple EDID data structures stored in memory, each corresponding to a different standard, allowing the display to adapt to various video sources regardless of which standard they use.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system dynamically selects and switches between different EDID standards based on user preference or detection of the video source type. An on-screen display control interface allows users to select the preferred EDID standard in real-time, and the system retrieves and transmits the corresponding EDID data format accordingly.

Inventive Principle:

Principle #15Dynamics

2Ease of manufacture

If manufacturers select a single EDID standard for their displays, then the ease of manufacture is improved, but the loss of information regarding available display features occurs

Engineering Contradiction:

Improveease of manufactureVSAvoiddisplay features availability

Core Design Contradiction:

Ease of manufactureVSLoss of information

Solution Approach 1:

Multiple EDID data structures are pre-stored in the display device's memory during manufacturing, each corresponding to a different EDID standard. This preliminary preparation ensures that all display features and capabilities are already encoded in the appropriate formats, ready for immediate retrieval and transmission without requiring additional manufacturing complexity.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If multiple EDID standards are supported simultaneously, then the adaptability to different video sources is improved, but the device complexity increases

Engineering Contradiction:

Improvecompatibility with video sourcesVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The EDID data is segmented into multiple distinct data structures, each corresponding to a specific EDID standard. The system stores separate EDID data for VESA E-EDID, VESA Display-ID, and CEA standards in memory, allowing independent retrieval and transmission of the appropriate segment based on the selected standard or detected video source.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP3574392B1Selection of an extended display identification data standard

Publication Date: 2025.08.27 HEWLETT PACKARD DEVELOPMENT COMPANY LP

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AI summary

One example of a device includes a display screen, a machine readable storage medium storing instructions and Extended Display Identification Data (EDID) data, and a processor. The processor is to execute the instructions to provide an on-screen display control to enable a user to select one of a plurality of EDID standards and format the EDID data based on the selected EDID standard.