Multi-display device luminance control for uneven brightness
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Solution Overview
Problem
Existing multi-display devices face issues with luminance unevenness due to fixed arrangements and number of image display sections, leading to reduced image quality and increased power consumption, especially when used in large-scale installations like event sites or airports.
Innovation Solution
A multi-display device configuration that includes image-display-light emitting means with adjustable luminance for each area, utilizing light emission control means with luminance correcting capabilities based on connection information, such as installation direction and position, to optimize luminance distribution and reduce power consumption without degrading display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the arrangement and number of image display sections are determined in advance, then the device structure is simplified, but the versatility is reduced
Solution Approach 1:
The patent applies dynamics by enabling the image display device to adaptively change its luminance characteristics based on its position within a multi-display arrangement. The device transitions from a static, fixed configuration to a dynamic system that automatically adjusts emission luminance data according to connection information, allowing the same hardware to serve multiple positions and orientations without physical reconfiguration.
Solution Approach 2:
The patent implements parameter changes by modifying the emission luminance data of the light emitting element based on the display device's position in the multi-display system. The luminance correcting means adjusts parameters such as brightness distribution across different areas of the display, enabling the same device to function correctly whether positioned at a corner, edge, or center of the arrangement.
2Use of energy by moving object
If the luminance of light emitting elements is decreased in peripheral areas, then power consumption is reduced, but luminance unevenness becomes visible in multi-display arrangements
Solution Approach 1:
The patent applies local quality by implementing area-driven backlight control that adjusts luminance characteristics for different spatial locations within the display. The luminance correcting means modifies emission luminance data for specific areas based on the display device's position in the multi-display arrangement, ensuring that peripheral dimming does not create visible unevenness when multiple displays are connected. Each area has optimized luminance properties tailored to its position in the overall display system.
Solution Approach 2:
The patent implements feedback by using connection information about the display device's position within the multi-display system to automatically adjust luminance parameters. The luminance correcting means receives feedback regarding the device's arrangement position and dynamically modifies emission luminance data accordingly, creating a closed-loop system that maintains image quality while optimizing power consumption based on actual operational context.
Data Source
AI summary
A multi-display device includes an image-display-light emitting backlight which includes a light emitting element arranged in each of a plurality of areas to emit light to form planar light; and a light emission controller configured or programmed to generate emission luminance data, for each of the areas, to drive the light emitting element. The light emission controller includes a luminance correcting controller configured or programmed to correct the emission luminance data on the basis of installation directions of image display devices and connection information that is information on connection positions thereof.