Flexible Display Hinge Temperature Control
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Solution Overview
Problem
Flexible display devices are prone to damage when suddenly folded or unfolded at low temperatures, as elements within the display may not deform properly, leading to potential damage due to sudden changes in state.
Innovation Solution
A display device with a controller that measures temperature and controls the hinge to maintain a folded or unfolded state when the temperature is below a reference temperature, using locking members and receiving grooves to prevent sudden deformation, ensuring the display remains stable and functional across varying temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the flexible display device is suddenly folded or unfolded at low temperature, then the device can be quickly changed between folded and unfolded states, but the elements in the flexible display panel may be damaged due to improper deformation
Solution Approach 1:
The heating element performs preliminary heating of the flexible display panel before folding or unfolding operations when the temperature is below the reference temperature. This preliminary thermal treatment ensures that the elements are properly warmed up and can deform correctly, preventing damage while enabling the folding/unfolding operation to proceed
Solution Approach 2:
The heating element acts as an intermediary between the low-temperature environment and the flexible display panel elements. It mediates the temperature condition by providing localized heating to the panel, creating suitable thermal conditions for element deformation without requiring the entire device to be at the reference temperature
2Reliability
If the flexible display panel is heated to raise the temperature, then the elements can deform properly, but the heating process takes additional time
Solution Approach 1:
The heating element provides localized heating specifically to the flexible display panel rather than heating the entire device. This localized approach raises the temperature of the critical elements quickly and efficiently, minimizing the heating time while ensuring proper deformation capability where it is most needed
Solution Approach 2:
The controller performs preliminary temperature assessment and activates heating only when necessary (below reference temperature). This selective preliminary heating approach avoids unnecessary heating time when the temperature is already sufficient, while ensuring proper deformation conditions when needed
Data Source
AI summary
A display device including: a first body member; a second body member; a hinge coupling the first body member and the second body member; a flexible display panel that is foldable, that is fixed to the first body member and to the second body member, and that is configured to display an image; and a controller configured to: measure a temperature of the flexible display panel; and control the hinge, when the measured temperature is lower than a reference temperature, to: maintain a state in which the first body member and the second body member are folded; or maintain a state in which the first body member and the second body member are unfolded.