Modular Display Luminance Uniformity via Driving Gain Synchronization
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Solution Overview
Problem
In modular display devices, the varying remaining power of each display device leads to differences in luminance, causing a heterogeneous appearance of the entire image, which reduces user immersion and causes eye fatigue.
Innovation Solution
A display device within a modular display system that includes a processor to identify a driving gain value based on image data, receives driving gain values from adjacent display devices through communication interfaces, and controls the display modules to display the image using the identified driving gain value, ensuring uniform luminance across the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If each display device uses its own driving gain value based on remaining power, then power utilization is optimized, but luminance uniformity across the modular display deteriorates
Solution Approach 1:
The patent establishes a reference driving gain value that is shared across all display devices in the modular system. Each display device adjusts its local driving gain based on this reference value and its own remaining power status, ensuring that all devices operate at the same effective luminance level (equipotentiality) while still utilizing their available power efficiently. This resolves the contradiction by making luminance uniform across the modular display without completely sacrificing individual power optimization.
2Manufacturing precision
If HDR technology is applied to maximize contrast, then image quality is improved, but luminance differences between segmented images increase
Solution Approach 1:
The patent applies local quality by allowing each display device to independently adjust its driving gain value based on its specific remaining power status while referencing a common reference driving gain value. This enables each local segment to optimize its image quality and contrast according to its power availability, while the reference value ensures that all local adjustments maintain overall luminance consistency across the entire modular display.
3Adaptability or versatility
If display devices operate independently with different remaining power, then system flexibility is maintained, but visual homogeneity of the entire image deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where each display device transmits its remaining power information to neighboring devices, and adjusts its driving gain value based on feedback from the reference driving gain value and peer devices' power status. This feedback loop enables the system to maintain flexibility in power management while achieving visual homogeneity, as each device continuously adapts its operation based on system-wide conditions.
Data Source
AI summary
A device and method for the device are provided such that the device is of a modular display device and includes a plurality of display modules, a first communication interface, a second communication interface, and a processor that identifies a driving gain value of the display device for an image displayed, receive a first driving gain value from a first display device from among the display devices through the first communication interface; receive a second driving gain value from a second display device from among the display devices through the second communication interface, identify, on a basis of a magnitude of the driving gain value, one from among the driving gain value of the display device and the first and second driving gain values received through the first and second communication interfaces, and display an image corresponding to the image data on the basis of the identified driving gain value.