Multi-Panel Display Hinge Layout With Palindromic I/O Pads

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Solution Overview

Problem

Existing multi-panel display devices face challenges in design complexity, cost, and form factor due to the need for separate design and placement of display drivers on opposite sides of the device, limiting component flexibility and increasing production time and cost.

Innovation Solution

Employing a palindromic I/O pad layout for both display panels connected via a hinge, allowing identical display drivers to be positioned on the same side, reducing design complexity and enabling edge-to-edge display with reduced production time and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If multiple separate display devices are used to provide multiple video streams, then the information display capability is improved, but the device complexity and space requirements increase

Engineering Contradiction:
Improveinformation display capabilityVSAvoiddevice complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The display device is divided into multiple independent display panels (first display panel, second display panel, etc.) that can be selectively activated. Each panel can display different video streams independently, allowing multiple information channels to be presented simultaneously through a single integrated device structure, thereby improving information display capability without proportionally increasing overall device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The display device is designed with multi-functional capability to present multiple video streams across different panels. The control circuit can configure various display modes (e.g., picture-by-picture, split-screen, cascaded windows) allowing the same hardware structure to serve multiple information display functions, thus enhancing information capability while maintaining reasonable device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of information

If multiple separate display devices are used to provide multiple video streams, then the information display capability is improved, but the space occupation increases

Engineering Contradiction:
Improveinformation display capabilityVSAvoidspace occupation
Core Design Contradiction:
Loss of informationVSArea of stationary object

Solution Approach 1:

Multiple display panels are merged into a single integrated display device structure. The panels are arranged in specific spatial configurations (side-by-side, stacked, or cascaded) and controlled by a unified control circuit, allowing multiple video streams to be displayed simultaneously within one device footprint, thereby improving information display capability while reducing the need for multiple separate devices and the space they would occupy.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display panels are arranged in different spatial dimensions and orientations within the integrated device. Panels can be positioned vertically, horizontally, or at angles to each other, utilizing three-dimensional space efficiently. This dimensional arrangement allows multiple display surfaces to coexist in a compact configuration, improving information display capability without linearly increasing the device's footprint area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Area of stationary object

If picture-by-picture or other methods are used to provide multiple video streams on one display device, then the space occupation is reduced, but the display quality and user experience deteriorate

Engineering Contradiction:
Improvespace occupationVSAvoiddisplay quality
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

Each display panel maintains its own dedicated display area and can optimize its local display quality independently. When multiple video streams are displayed across separate panels, each panel can allocate its full resolution and color depth resources to its content, avoiding the quality degradation that occurs when a single panel must divide its pixel resources among multiple video streams. This local quality approach ensures high display quality while using a compact multi-panel configuration.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The display function is segmented across multiple panels, with each panel handling specific video streams. This segmentation allows each panel to maintain optimal display parameters (resolution, refresh rate, color accuracy) for its assigned content without compromising other video streams. The control circuit manages the segmentation to ensure each panel operates at peak quality, thereby maintaining high overall display quality while using less space than a single large panel would require.

Inventive Principle:
Principle #1Segmentation

4Device complexity

If a single display device is used, then the device complexity is reduced, but the ability to provide multiple video streams is limited

Engineering Contradiction:
Improvedevice complexityVSAvoidability to provide multiple video streams
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The display device incorporates dynamic configurability through a control circuit that can adjust display modes in real-time. The system can dynamically switch between different operating modes (single-panel mode, multi-panel mode, various picture-in-picture configurations) based on the number and type of video streams being processed. This dynamic adaptation allows a single integrated device to provide multiple video stream capabilities without requiring permanently complex hardware for every possible configuration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The integrated display device is designed with universal functionality to handle multiple video streams through various display configurations. The control circuit implements software-based or firmware-based mode switching that enables the same hardware structure to perform multiple functions: single-video display, dual-video picture-by-picture, multi-video cascaded windows, or independent panel activation. This multi-functionality provides versatile multi-video stream capability while maintaining relatively simple underlying hardware architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4168874B1Multi-panel display device
Publication Date: 2026.04.29 MICROSOFT TECHNOLOGY LICENSING LLC
  • EP4168874B1 patent drawingFigure 1A
  • EP4168874B1 patent drawingFigure 1B
  • EP4168874B1 patent drawingFigure 2

AI summary

A display device includes a first display panel including a first set of input/output (I/O) pads at a first side of the display device. The first set of I/O pads includes a first subset of palindromic I/O pads. A first display driver is operatively connected to the first set of I/O pads at the first side of the display device. The display device further includes a second display panel including a second set of I/O pads at the first side of the display device. The second set of I/O pads includes a second subset of palindromic I/O pads matching the first subset of palindromic I/O pads. A second display driver is operatively connected to the second set of I/O pads at the first side of the display device. The display device further includes a hinge that pivotably connects the first display panel to the second display panel.