Foldable Display Dimming Control via Sensor Feedback
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Solution Overview
Problem
Portable electronic devices with flexible display units lack efficient control methods for dimming and power conservation, particularly in response to user input, folding state, folding speed, and application usage, leading to suboptimal energy management and user experience.
Innovation Solution
A portable device equipped with a foldable display unit, state sensor, input sensor, and processor that dynamically adjusts dimming modes based on user input, folding state, and folding speed, allowing for different dimming times and screen brightness settings to conserve power and enhance user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display unit remains brightly lit to provide good visibility, then user experience is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic brightness adjustment by switching between normal mode and dimming mode based on real-time detection of user input. The display unit adapts its illumination intensity dynamically rather than maintaining a fixed state, resolving the contradiction between visibility and power consumption.
Solution Approach 2:
The system uses sensor units to detect user input and provides feedback to the processor, which then adjusts the display brightness accordingly. This closed-loop feedback mechanism allows the display to respond to user presence or absence, optimizing the balance between visibility and power consumption.
2Use of energy by moving object
If the dimming time is extended to conserve power, then energy efficiency is improved, but user convenience deteriorates
Solution Approach 1:
The patent implements dynamic dimming time adjustment by switching between normal mode (first dimming time) and dimming mode (second dimming time) based on folding state. When folded, the system transitions to a longer dimming time for power conservation, while maintaining user-friendly responsiveness through the dual-mode architecture.
3Adaptability or versatility
If the display unit is made flexible and foldable to improve portability, then device mobility is improved, but control complexity increases
Solution Approach 1:
The patent applies multi-functionality by using the same sensor units and processor for both detecting folding state and controlling dimming behavior. This universal approach handles multiple functions (portability detection, user input sensing, brightness control, dimming timing) through a unified system, managing complexity efficiently.
4Measurement precision
If multiple sensor units are added to detect various user inputs, then user interaction accuracy is improved, but device complexity increases
Solution Approach 1:
The patent uses sensor units that serve multiple purposes: detecting user input for dimming control, detecting folding state changes, and potentially other interactions. This multi-functional sensor approach improves measurement precision without proportionally increasing device complexity.
Data Source
AI summary
Disclosed are a portable device and a control method thereof for convenient and accurate dimming control. The portable device includes a foldable display unit, a state sensor unit to detect folded and unfolded states of the foldable display unit, an input sensor unit to sense user input and a processor to control the respective units. The processor converts the portable device from a first dimming mode to a second dimming mode upon detection of change of the foldable display unit from the unfolded state to the folded state, perform dimming of the foldable display unit based on a dimming time different with the second dimming time when the user input is sensed in the second dimming mode within a second dimming time, and performs dimming of the foldable display unit after the second dimming time has passed when the user input is not sensed in the second dimming mode within the second dimming time.