Tiled Display Boundary Correction via Luminance Adjustment
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Solution Overview
Problem
Tiled displays experience visual discontinuities at the boundary portions of adjacent display panels, leading to a fragmented and less immersive viewing experience due to the bezel areas between connected screens.
Innovation Solution
A system comprising a main controller and distance measurer that generates a corrected image signal by increasing luminance near the boundary areas between adjacent display devices based on measured distance data, ensuring a seamless visual transition by adjusting pixel row or column luminance accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a tiled display, then the screen size is increased, but the boundary portions between adjacent display panels become visible causing visual discontinuity
Solution Approach 1:
The patent applies local quality by adjusting the luminance of specific pixel regions (boundary areas) differently from other regions. The controller identifies boundary portions between adjacent display devices and increases luminance only in those specific areas, while maintaining normal luminance in central and non-boundary regions. This localized adjustment reduces the visibility of boundaries without affecting the overall display quality.
Solution Approach 2:
The patent changes the luminance parameter of pixels in boundary regions to reduce the visual impact of boundaries. By detecting the distance between adjacent display devices and calculating appropriate luminance compensation values, the system dynamically adjusts the brightness parameter of boundary pixels to match or blend with adjacent regions, creating a more seamless visual transition.
2Stability of the object's composition
If luminance is increased near boundary portions to reduce visibility, then visual recognition of boundaries is improved, but energy consumption increases
Solution Approach 1:
The patent minimizes energy consumption by applying luminance adjustment only to specific boundary pixel regions rather than the entire display. The controller identifies and processes only the pixels located in boundary portions between adjacent display devices, leaving the majority of pixels (in non-boundary regions) to operate at normal luminance levels, thus reducing overall energy usage.
Solution Approach 2:
The patent applies partial action by adjusting luminance only to the extent necessary to reduce boundary visibility. The system calculates the minimum required luminance compensation based on the detected distance between display devices and applies only that necessary adjustment, avoiding excessive luminance increase that would waste energy.
3Stability of the object's composition
If distance measurement and image correction processing are added, then boundary visibility is reduced, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the existing display system components. The distance measurer may be integrated with the display device structure, and the controller performs both normal image signal processing and boundary correction processing using the same hardware resources. This multi-functionality approach reduces the need for separate dedicated components, thereby limiting the increase in device complexity.
Data Source
AI summary
A tiled display includes a plurality of display devices respectively including a plurality of pixels, and a main controller that processes an input image signal to provide an image signal to the plurality of display devices. Based on distance data between adjacent display devices among the plurality of display devices, the main controller generates a corrected image signal that increases luminance near a boundary portion of the adjacent display devices.