Display Driver IC Power Control for Wearable Devices
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Solution Overview
Problem
Electronic devices, particularly wearable devices, consume unnecessary power when constantly supplying power to display multiple images, as existing technologies lack a method to distinguish between image generation and output processes, leading to inefficient power usage.
Innovation Solution
Implementing a control method that determines the type of process corresponding to a synchronization signal request, allowing the device to adjust power applied to the display accordingly, thereby reducing power consumption by distinguishing between image generation and output processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the display constantly supplies power to output multiple images, then the image output capability is improved, but the power consumption increases
Solution Approach 1:
The gate driver dynamically adjusts its operation mode based on the type of synchronization signal received. When a first synchronization signal (image output) is detected, the gate driver activates to enable image display. When a second synchronization signal (non-image output) is detected, the gate driver enters a low-power state, selectively activating only necessary circuits while deactivating others, thus adapting power consumption to actual operational needs
Solution Approach 2:
The invention changes the operational parameters of the gate driver based on the synchronization signal type. By detecting whether the synchronization signal corresponds to image output or other operations, the system adjusts power supply levels, circuit activation states, and driver operation modes to match the actual requirements, reducing unnecessary power consumption while maintaining image output capability when needed
2Reliability
If the display constantly supplies power to generate and output images, then the image display function is improved, but the power consumption increases
Solution Approach 1:
The gate driver transitions between different operational states based on actual demand. Upon receiving a first synchronization signal indicating image output requirement, the gate driver activates all necessary circuits to ensure reliable image display. Upon receiving a second synchronization signal indicating non-image operation, the gate driver reduces activation to only essential circuits, maintaining basic functionality while minimizing power consumption
Solution Approach 2:
The gate driver autonomously determines its own power consumption level by detecting the type of synchronization signal. The system self-regulates by identifying whether image output is required and automatically adjusting its operational state accordingly, eliminating the need for external power management intervention while ensuring reliable image display when needed
Data Source
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AI summary
An electronic device is provided. The electronic device includes a display, at least one processor, a memory that is electrically connected to the at least one processor, and a display driver integrated circuit that is electrically connected to the at least one processor. The at least one processor is configured to receive a synchronization signal request corresponding to a first process initiated by the at least one processor from the at least one processor, determine whether the first process is for displaying an image in response to the synchronization signal request, and control an activation state of the display driver integrated circuit for displaying the image based on a determination result. The memory is configured to store instructions for the at least one processor to initiate and run the first process.