Display Panel Boundary Correction for Luminance Uniformity
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Solution Overview
Problem
Luminance non-uniformity and image discontinuity occur at the boundaries between display panels in enlarged display devices, leading to deteriorated display quality due to differences in input image data values across adjacent panels.
Innovation Solution
A display device with a data converter that generates correction data by shifting image data in edge regions based on differences in input image data values between adjacent panels, using filters of varying sizes to ensure continuity and improve display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If display panels are connected to form an enlarged display device, then the display area is increased, but luminance non-uniformity and image discontinuity occur at boundary portions between panels
Solution Approach 1:
The data converter performs preliminary correction on image data before it reaches the display panels. By detecting luminance differences at boundary portions in advance and applying compensation values to adjacent pixels, the system prevents luminance non-uniformity and image discontinuity from occurring at the boundaries when panels are connected to form an enlarged display device
Solution Approach 2:
The patent applies different correction strategies to different regions of the display. Edge regions adjacent to boundaries receive compensation processing with shifted pixel values, while non-edge regions display normal image data without correction. This localized quality adjustment ensures high display quality at critical boundary areas while maintaining overall system performance
2Manufacturing precision
If image data is corrected at edge regions to compensate for luminance differences, then display quality at boundaries is improved, but processing complexity increases
Solution Approach 1:
The data converter applies correction only to edge regions of display panels that are adjacent to boundary portions, rather than processing the entire image data. By limiting the correction scope to only the necessary edge areas and using a preset threshold to determine when correction is needed, the system achieves boundary quality improvement while minimizing processing complexity
Solution Approach 2:
The data converter acts as an intermediary component between the image data source and the display panels. It receives input image data, detects luminance differences at boundaries, calculates compensation values, and generates corrected image data. This intermediary processing layer isolates the complexity of boundary correction from both the data source and display panels, managing system complexity effectively
Data Source
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AI summary
A display device includes display panels, a data converter that renders input image data to convert the input image data corresponding to edge regions of the display panels adjacent to a boundary portion between the display panels into correction data, and a driving controller that receives the correction data and generates a control signal that drives the display panels based on the correction data. The data converter generates the correction data in which an image displayed in the edge region is shifted based on a difference between values of the input image data corresponding to the edge regions of the display panels adjacent to the boundary portion between the display panels adjacent to each other.