Flexible Display Power Control via Segmented Area Activation
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Solution Overview
Problem
Flexible displays waste power when transitioning from a reduced to an expanded state, as the entire display panel must be powered, leading to unnecessary energy consumption and slower screen display switching.
Innovation Solution
A method for a flexible display control system that divides the display area into parts and independently supplies power based on the state, allowing only necessary areas to be powered in each state, reducing energy waste and improving responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If power is supplied to the entire flexible display panel, then the display can be quickly activated when transitioning to the expanded state, but unnecessary power is consumed in the reduced state
Solution Approach 1:
The flexible display panel is divided into multiple power supply regions (first area and second area) that can be independently controlled. The processor selectively supplies power to only the necessary regions based on the current state, thereby reducing overall power consumption while maintaining the capability for quick activation when needed.
Solution Approach 2:
The power supply configuration is made dynamic by adjusting which areas receive power based on the display state. In the reduced state, only the first area is powered; in the expanded state, both first and second areas are powered. This dynamic adaptation resolves the contradiction between speed and energy consumption.
2Use of energy by moving object
If power is blocked from the second area in the reduced state, then power consumption is reduced, but the transition to the expanded state is slower
Solution Approach 1:
The first area is maintained in a powered state even when the display is in the reduced configuration. This preliminary action ensures that part of the display is already activated and ready, so when transitioning to the expanded state, only the additional second area needs to be powered up, rather than the entire panel needing to activate from a completely powered-off state.
3Adaptability or versatility
If the display area is expanded to show more content, then the functionality is improved, but the power consumption increases
Solution Approach 1:
The power supply system dynamically adapts to the display area configuration. When the display is in the reduced state, only the first area receives power. When expanded, the second area is additionally powered. This dynamic power management allows the system to provide full functionality when needed while minimizing power consumption during normal operation.
Data Source
AI summary
An electronic device may include a first housing, a second housing, a flexible display including a first area and a second area, wherein the first area is exposed for view to the outside of the electronic device in a first state, and when the first state is switched to a second state according to movement of the second housing with respect to the first housing, at least a portion of the second area may be exposed for view to the outside of the electronic device together with the first area, and a processor. The processor may be configured to, in the first state, supply power related to driving of the flexible display to a first portion of the second area, the first portion being adjacent to the first area and not exposed for view to the outside through a front surface of the electronic device.