Display Control Device Parallel Data Loading
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Solution Overview
Problem
High-definition display panels require extensive correction data loading, leading to prolonged power-on times and user stress due to increased waiting periods before image display, with existing solutions either reducing correction data quality or displaying uncorrected images initially.
Innovation Solution
A display control device that performs correction processes in parallel with data loading, gradually increasing correction strength and resolution, and synthesizing images with a start image, allowing for immediate image display while completing data correction, thereby reducing perceived waiting time and stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If correction data is loaded from nonvolatile external memory for high-definition display panels, then image correction quality is improved, but power-on time to display image is prolonged
Solution Approach 1:
The patent applies preliminary action by loading correction data into internal memory in advance during the power-on sequence, before the main processor is fully operational. The display control device independently loads correction data from nonvolatile external memory into internal memory during the reset period, so that when the microcomputer outputs the normal-screen control command, the correction data is already ready in internal memory for immediate use, thus reducing the overall power-on time while maintaining correction quality
Solution Approach 2:
The patent uses internal memory as an intermediary between nonvolatile external memory and the correction processing system. The display control device acts as an intermediary controller that independently manages the loading of correction data from external memory to internal memory, enabling parallel operation with the microcomputer startup process and eliminating the sequential bottleneck that previously extended power-on time
2Loss of time
If correction data amount is reduced to shorten loading time, then power-on time is reduced, but image correction quality deteriorates
Solution Approach 1:
The patent segments the correction data storage and loading process into two parts: full correction data is stored in nonvolatile external memory, while a subset is loaded into internal memory as needed. The display control device selectively loads correction data into internal memory based on the current operation state (initial screen vs. normal screen), ensuring sufficient correction quality for each mode without requiring all correction data to be loaded simultaneously, thus reducing power-on time while maintaining quality
3Loss of time
If uncorrected image is displayed initially to reduce waiting time, then power-on time is reduced, but display quality is degraded
Solution Approach 1:
The patent implements dynamic image display by adjusting the correction application based on the display state. During initial screen display, the system applies correction using the loaded correction data to maintain quality. When transitioning to normal screen display, the system dynamically switches to using correction data from internal memory that was pre-loaded, ensuring high display quality throughout the power-on sequence while minimizing waiting time through parallel loading operations
Data Source
AI summary
A display control device outputs an image, which is obtained by processing as input image having been corrected by the correction unit, while correction data is loaded. The display control device outputs the input image, which has been corrected by the correction unit, after completion of loading the correction data.