NPU-Accelerated Display Buffer Copy for Foldable Screen Transition
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Solution Overview
Problem
Existing electronic devices with dual displays, such as foldable or flippable devices, experience delays in updating images when the operation state of the display module changes, leading to a suboptimal user experience due to hardware limitations and the need for GPU-driven image updates.
Innovation Solution
The electronic device employs a neural processing unit (NPU) to accelerate image conversion and storage processes, allowing for faster generation and output of image information when the display module changes states, thereby reducing delay times and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If GPU-driven image updates are used for dual display state changes, then image quality and processing capability are maintained, but image update delay increases and user experience deteriorates
Solution Approach 1:
The patent creates a copy of the display buffer data in memory before the display module changes state. This copied image data is then rapidly processed and output to the display module after state change, eliminating the need for real-time GPU processing during transition. The copying approach allows the system to prepare image data in advance and restore it quickly, significantly reducing image update delay while maintaining image quality.
2Productivity
If high-performance processing states are maintained for image conversion, then image processing capability is ensured, but power consumption increases
Solution Approach 1:
The patent performs image buffer copying and preparation in advance before the display module actually changes state. By preparing the image data beforehand and storing it in memory, the system avoids the need for sustained high-performance processing during the state transition. The processor can then operate at lower power states during idle periods, only activating high-performance processing when actually needed for the brief image restoration phase.
Data Source
AI summary
An electronic device for reducing a screen providing time and a control method thereof are provided. The electronic device includes a processor, a memory configured to store instructions, a display module configured to be driven in at least one state of a first state or a second state, wherein the second state is different from the first state, and a sensor module configured to detect the state of the display module, wherein, the instructions, when executed by the processor, cause the electronic device to determine whether the display module changes from the first state to the second state, in response to the state of the display module changing to the second state, generate image information obtained by converting an image displayed on the display module in the first state, store the generated image information in the at least one memory, and in response to the display module changing from the second state to the first state, output an image displayed on the display module based on the stored image information. The image information obtained by converting the image displayed on the display module may include information on an image converted from an image desired by a user.