Flexible Display Recognition Pattern Calibration
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Solution Overview
Problem
Conventional flexible display devices face challenges in accurately calibrating and optimizing image display due to their flexible nature, particularly when the display area is varied or nonlinearly bent, leading to inconsistencies in image size and user satisfaction.
Innovation Solution
A display device incorporating a flexible display panel with a recognition pattern of sub-patterns of different color concentrations, a photosensor, and a controller that senses the display area by recognizing the pattern and stores corresponding values to adjust the image size accordingly, allowing for real-time optimization of image display based on the exposed area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display panel is extended or bent to vary display area, then portability and flexibility are improved, but image display accuracy and calibration consistency deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple recognition patterns with different color concentrations that correspond to predetermined display areas. Before actual display operation, the system pre-calibrates and stores the relationship between recognized patterns and corresponding display area values, enabling accurate adaptation when the flexible panel is extended or bent without requiring real-time complex calibration
Solution Approach 2:
The patent utilizes parameter changes by varying the color concentration parameters of recognition patterns based on different display areas. When the flexible display panel changes shape or size, the system changes the color concentration of the displayed recognition pattern to match the current display area, allowing the photosensor to accurately recognize and calibrate the current state
2Device complexity
If conventional calibration methods are used on flexible display panels, then device complexity is reduced, but image display optimization and user satisfaction deteriorate
Solution Approach 1:
The patent applies color changes by displaying recognition patterns with different color concentrations corresponding to different display areas. The photosensor detects these color variations to determine the current display area, enabling accurate calibration and image optimization without complex additional hardware or calibration procedures
Solution Approach 2:
The system implements self-service by automatically performing calibration through the interaction between the displayed recognition pattern and the photosensor. The controller automatically recognizes the pattern, determines the display area, and adjusts image parameters without requiring manual calibration operations from the user
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables accurate and user-friendly image display on flexible display panels, regardless of the panel's extension or bending, by independently recognizing the sub-patterns and adjusting the image size without additional configurations, enhancing user satisfaction and reliability.
Implementation Method 1
The recognition pattern is light reflective, and the photosensor includes a first light emitter and a first light receiver disposed to neighbor with each other
Implementation Method 2
The recognition pattern is light transmissive, and the photosensor includes a second light emitter and a second light receiver disposed to face each other with the recognition pattern therebetween
Data Source
AI summary
A display device includes a flexible display panel including a recognition pattern, the recognition pattern having a plurality of sub-patterns with different color concentrations and disposed in a first direction, a housing accommodating the flexible display panel, the flexible display panel being configured to extend out of the housing in the first direction to vary a display area, and a photosensor in the housing, the photosensor corresponding to the recognition pattern and being configured to recognize the recognition pattern and to sense the display area of the flexible display panel.