Multi-Input Display Native Rendering via Region Metadata

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional multi-input displays often produce unsatisfactory picture quality when outputting display data from multiple sources due to internal rescaling of display data, which can lead to poor image quality.

Innovation Solution

A method for configuring multi-input display devices that involves receiving user input to specify display regions and sending display metadata to each source, allowing each source to render data natively, thereby avoiding internal rescaling and improving picture quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional displays output display data from multiple input sources using picture-by-picture or picture-in-picture modes, then multiple display sources can be shown simultaneously, but the picture quality becomes unsatisfactory due to internal rescaling

Engineering Contradiction:

Improvemulti-input display capabilityVSAvoidpicture quality

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The display screen is divided into multiple display regions, with each region corresponding to a specific display source. Each display source renders its data natively to a specific region without requiring internal rescaling by the display device, thereby maintaining high picture quality while achieving multi-input capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of the display device performing internal rescaling of display data from multiple sources (conventional approach), the invention inverts the approach by having each display source render its data natively at the appropriate resolution for its designated display region. This reverses the traditional role of rescaling from the display side to the source side.

Inventive Principle:

Principle #13The other way round (Inversion)

2Productivity

If internal rescaling is performed to fit multiple display sources on a single screen, then simultaneous display is achieved, but image quality deteriorates

Engineering Contradiction:

Improvesimultaneous display outputVSAvoidimage quality

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

Each display source performs preliminary rendering of its data at the native resolution appropriate for its designated display region before transmission to the display device. This preliminary action at the source eliminates the need for quality-degrading internal rescaling at the display device, achieving both simultaneous display and high image quality.

Inventive Principle:

Principle #10Preliminary action

3Manufacturing precision

If display metadata is sent to each display source specifying display regions, then each source can render data natively, but system complexity increases

Engineering Contradiction:

Improvepicture qualityVSAvoidmetadata management

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention uses display metadata (such as EDID information) to communicate display region parameters to each display source. By changing the parameter transmission approach to include region-specific metadata, each source can render data natively at the correct resolution for its region, achieving high picture quality with manageable complexity through standardized metadata protocols.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10551988B2Multi-input display

Publication Date: 2020.02.04 DELL PROD LP

AI summary

A multi-input display device may, responsive to a user-selection, divide a display region into different regions corresponding to display data received at different input graphics ports. Display metadata for each display region may be individually transmitted to each respective source of the display data.