Foldable Display Visual Uniformity Control
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Solution Overview
Problem
Conventional foldable displays are sensitive to mechanical deformation and viewing angle changes, leading to irregularities in brightness and color settings, resulting in nonuniform visual appearance.
Innovation Solution
A foldable display system with a display controller that identifies hinge angles and surface curvature data from sensors, accessing surface maps in a database to adjust pixel illumination settings for mechanical states and viewing positions, ensuring uniform brightness and color across the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the foldable display is made flexible to enable folding, then portability and form factor versatility are improved, but visual uniformity and display quality deteriorate due to mechanical deformation
Solution Approach 1:
The system dynamically changes display parameters (brightness, color temperature, contrast) based on the detected mechanical state of the display. Sensors monitor curvature and hinge angle, and the controller adjusts pixel illumination parameters to compensate for deformation effects, maintaining visual uniformity across different folded configurations
Solution Approach 2:
The system implements a feedback loop where sensors continuously monitor the mechanical state (curvature, hinge angle) of the foldable display and provide this information to the controller. The controller then adjusts display settings based on this feedback to compensate for deformation-induced visual irregularities, creating a closed-loop control system that maintains display quality
2Adaptability or versatility
If the display surface is deformed to enable folding, then device flexibility is improved, but brightness uniformity and color accuracy worsen
Solution Approach 1:
The system dynamically adjusts brightness parameters of individual pixels or display zones based on the detected mechanical deformation. When the display is folded or curved, the controller modifies illumination intensity parameters to compensate for non-uniform light emission caused by surface deformation, maintaining consistent brightness across the display area
3Ease of operation
If the display is folded to different hinge angles, then viewing flexibility is improved, but viewing angle accuracy and visual consistency deteriorate
Solution Approach 1:
The system adjusts display parameters based on the detected hinge angle and viewing position. The controller modifies brightness, contrast, and color settings according to the current folding state and user viewing angle, ensuring optimal visual consistency and accuracy regardless of the display's folded configuration
Solution Approach 2:
The system dynamically adapts display settings in real-time as the hinge angle changes. The controller continuously monitors the folding state and adjusts illumination parameters on-the-fly, allowing the display to maintain visual quality across a range of dynamic configurations rather than being optimized for a single static position
Data Source
AI summary
In one embodiment, a method for managing visual uniformity in a foldable display includes identifying a hinge angle of the foldable display, the hinge angle indicating a degree to which the foldable display is opened or closed; receiving surface curvature data from a plurality of sensors of the foldable display, the surface curvature data indicating a mechanical state of a surface of the foldable display; accessing a plurality of surface maps stored in a display database of the foldable display, each of the plurality of surface maps indicating one or more display settings associated with a respective mechanical state of the surface of the foldable display; retrieving the one or more display settings from the display database based on the hinge angle and the surface curvature data; and causing a plurality of pixels to illuminate using the one or more display settings.