Display Device Stress Data Compression Memory Management
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Solution Overview
Problem
Display devices face challenges in minimizing compression loss accumulation and reducing power consumption due to unnecessary data accumulation requirements, which affect their operational efficiency and image compensation performance.
Innovation Solution
A display device with a data processor that generates stress data, accumulates it in a first memory, and compresses it when the memory threshold is exceeded, using a combination of data restorer, accumulator, and compressor to manage memory efficiently and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stress data is continuously accumulated in memory, then compensation performance is improved, but memory capacity is exceeded causing compression loss accumulation
Solution Approach 1:
The patent divides the memory storage into two separate memories: a first memory for storing stress data in an uncompressed state and a second memory for storing compressed stress data. This segmentation allows the system to manage memory capacity by transferring data between different storage locations based on compression status, preventing compression loss accumulation while maintaining compensation performance.
2Reliability
If data accumulation compensation is performed continuously, then compensation performance is improved, but power consumption increases due to unnecessary sequence generation
Solution Approach 1:
The patent implements dynamic control of the data accumulation compensation process by determining whether to perform compression based on real-time memory capacity monitoring. The system only generates sequences and performs compression when necessary (when first memory is full), rather than continuously, thereby reducing unnecessary power consumption while maintaining compensation performance.
3Quantity of substance
If stress data is stored in compressed state, then memory capacity is extended, but compression loss accumulation occurs
Solution Approach 1:
The patent introduces an intermediary mechanism involving a controller that manages the compression and decompression processes. The controller determines when compression is necessary, performs decompression before accumulation, and manages the transfer between first and second memories. This intermediary control prevents compression loss accumulation by ensuring data is properly processed before storage.
4Loss of information
If data is accumulated without compression, then data integrity is maintained, but memory capacity is exceeded
Solution Approach 1:
The patent performs preliminary compression of stress data before storing it in the second memory. The controller compresses the accumulated stress data when the first memory is full, reducing the data size before transfer. This preliminary action allows the system to extend effective memory capacity while maintaining data integrity through proper compression and decompression procedures.
Data Source
AI summary
The present disclosure provides a display device including a display panel configured to display an image, a stress data generator configured to generate stress data corresponding to a data signal to be displayed on the display panel, and a data processor configured to accumulate and store the stress data in a first memory and to compress the accumulated stress data when a capacity of the accumulated stress data exceeds an internally set memory allocation amount.