Flexible Display Image Compensation via Bent Shape Sensing
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Solution Overview
Problem
Conventional display devices fail to dynamically adjust image quality based on shape changes, particularly in flexible or foldable displays, leading to inconsistent color temperature and visibility issues when bent.
Innovation Solution
A display device comprising a flexible display panel with a flexible touch panel that outputs sensing signals, allowing a controller to determine the bent shape and compensate image signals by adjusting color temperature and gamma values, thereby optimizing image quality based on the device's configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display panel is used to enable shape deformation, then adaptability and versatility are improved, but image quality consistency deteriorates due to color temperature changes when bent
Solution Approach 1:
The patent implements dynamic image signal compensation by continuously monitoring the bending state of the flexible display panel through touch panel sensing signals and adjusting color temperature and gamma values in real-time. This dynamic adjustment ensures image quality consistency across different bent states, resolving the contradiction between shape flexibility and image quality reliability
Solution Approach 2:
The system uses feedback from the flexible touch panel's sensing signals to detect bending state changes and automatically compensates for image quality degradation. The controller receives sensing signals, determines bent shape, and adjusts display parameters accordingly, creating a closed-loop feedback system that maintains reliable image quality while enabling flexible deformation
2Measurement precision
If touch panel sensing signals are used to detect bent shape, then measurement precision is improved, but device complexity increases due to additional compensation processing
Solution Approach 1:
The flexible touch panel serves dual functions: it acts as both a user interaction interface and a bending state sensor. By reusing the existing touch panel structure for shape detection, the patent avoids adding separate sensing components, thus improving measurement precision while minimizing the increase in device complexity
Solution Approach 2:
The system changes display parameters (color temperature and gamma values) based on detected bending state to compensate for image quality degradation. This parameter adjustment approach is computationally efficient and can be implemented through software processing, avoiding complex hardware modifications while achieving precise bent shape measurement and compensation
Data Source
AI summary
A display device and method of driving the same are disclosed. In one aspect, the display device includes a flexible display panel and a flexible touch panel disposed on one surface of the flexible display panel. The flexible touch panel is configured to output a plurality of sensing signals indicating a bent shape of the display device. The display device also includes a controller configured to receive the sensing signals, determine the bent shape of the display device based on the received sensing signals, compensate an input image signal based on the determined bent shape so as to generate a gradation signal and provide the gradation signal to the flexible display panel.