Flexible Display Heating and Speed Control for Cold Operation
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Solution Overview
Problem
Flexible displays in rollable or slidable electronic devices are prone to cracking and impaired driving at low temperatures, affecting durability and usability.
Innovation Solution
An electronic device with a flexible display that includes a heating part, a driving unit, a temperature sensor, and a processor to control movement speed and power supply based on ambient temperature, preventing damage by adjusting the movement speed and providing heat when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display is operated at low temperature, then the device can function in cold environments, but the flexible display may crack and driving may be impaired
Solution Approach 1:
The heating part is activated before the flexible display is driven at low temperatures to pre-warm the display and prevent cracking. The processor detects low temperature conditions and supplies power to the heating part in advance, ensuring the flexible display reaches an appropriate temperature before movement operations occur.
Solution Approach 2:
The operating parameters of the flexible display are adjusted based on temperature conditions. The processor controls the heating part to change the temperature parameter of the flexible display, and also adjusts the driving parameters (such as movement speed or tension) according to the temperature state to prevent damage.
2Speed
If the movement speed of the second housing is increased, then the device responds faster to user input, but the flexible display is more prone to cracking at low temperatures
Solution Approach 1:
The heating part is activated before the movement operation to pre-warm the flexible display, ensuring it is ready to withstand the upcoming high-speed movement without cracking. This preliminary heating action prepares the material in advance for the stress it will encounter.
Solution Approach 2:
The system dynamically adjusts the heating power and movement speed based on real-time temperature feedback from the temperature sensor. At lower temperatures, the heating part operates at higher power and movement speed is reduced; as temperature increases, heating power is reduced and movement speed can be increased, creating a dynamic balance between speed and reliability.
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
Reduces the risk of cracking and improves durability of the flexible display by maintaining appropriate temperatures during operation, enhancing user convenience and device performance.
Implementation Method 1
a heating part disposed to at least one region of the first housing and second housing
Data Source
AI summary
An electronic device according to various example embodiments may include a housing including a first housing and a second housing slidably coupled to the first housing within a specific range, a heating part disposed to at least one region of the first housing and second housing, a driving unit disposed to one region in the housing, a flexible display which may include a first portion exposed for view (visible to a user) to the outside of the housing and a second portion extending from the first portion and inserted into the housing or drawn out to the outside when the second housing moves with respect to the first housing, a support structure, at least one temperature sensor, and at least one processor. The at least one processor is configured to sense a temperature and at least control a movement speed of the second housing based on at least the sensed temperature.