Electronic Wallpaper Seam Misalignment Compensation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Misalignments between electronic wallpapers, such as OLED or AMOLED panels, during installation can lead to image distortions due to horizontal or vertical displacements, which existing methods fail to accurately compensate for.

Innovation Solution

A method and apparatus utilizing a camera device and pattern detector to determine and compensate for horizontal and vertical displacements along the seam of electronic panels by alternately turning on pixels in a column closest to the seam, capturing images, and adjusting the alignment based on detected displacements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If electronic wallpapers are installed together for a large display, then the display area is increased, but misalignments and image distortions occur along the seams

Engineering Contradiction:
Improvedisplay areaVSAvoidalignment precision
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The patent segments the alignment compensation process into distinct steps: capturing images of pixels near the seam, detecting pixel positions using a pattern detector, calculating displacement amounts, and compensating by adjusting pixel positions. This segmentation allows for precise correction of misalignments in large-scale displays composed of multiple electronic wallpaper panels.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If existing methods are used to install electronic wallpapers, then installation is simple, but misalignments cannot be accurately detected or compensated

Engineering Contradiction:
Improveinstallation simplicityVSAvoidmisalignment detection precision
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent introduces a camera device as an intermediary tool to capture images of pixels near the seam, and a pattern detector as another intermediary to analyze these images and detect pixel positions. These intermediary devices enable precise measurement of misalignments without complicating the overall installation process, as they can be integrated into the display system.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If pixels are alternately turned on near the seam, then horizontal and vertical displacements can be detected, but the process becomes more complex

Engineering Contradiction:
Improvedisplacement detection precisionVSAvoidcompensation process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent employs periodic action by alternately turning on pixels in a column near the seam at different time points. This periodic activation allows the camera device to capture images at multiple stages and the pattern detector to compare positions, thereby detecting both horizontal and vertical displacements systematically. The periodic nature of this process organizes the complexity into manageable, repeatable steps.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10083652B2Method, apparatus and computer product to compensate for misaligned or overlapped electronic wallpapers
Publication Date: 2018.09.25 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US10083652B2 patent drawing
  • US10083652B2 patent drawing
  • US10083652B2 patent drawing

AI summary

A method of compensating for misalignments along a seam of first and second electronic panels installed for a display device is provided. Each of the first and second electronic panels includes a plurality of pixels formed in an i×j matrix, wherein i and j are integers at least one. The method includes controlling a camera device to be placed over the seam, alternately turning on first pixels in a first column of the first electronic panel, the first column being closest to the seam, capturing, using the camera device, images for the respective first pixels, detecting, using a pattern detector, each of the first pixels based on a corresponding one of the captured images, determining one of at least one horizontal displacement or a vertical displacement along the seam, and compensating for the misalignments along the seam based on the determined at least one horizontal displacement or the vertical displacement.