Memory Device Pixel Data Buffering for Display Power Reduction
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Solution Overview
Problem
Existing memory devices in display systems unconditionally store and output multiple pieces of pixel data, leading to increased power consumption due to frequent storage and output operations.
Innovation Solution
A memory device configuration that includes a buffer memory, a register, and a buffer controller to store and compare pixel data, skipping storage and output of identical data, thereby reducing power consumption by only storing and outputting different pixel data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the memory device unconditionally stores and outputs all pixel data, then complete image data buffering is achieved, but power consumption increases due to frequent storage and output operations
Solution Approach 1:
The patent extracts and stores only the first pixel data of each horizontal line in a register, while skipping storage of subsequent pixel data that matches the first pixel data. This selective extraction approach reduces the number of storage operations in the buffer memory, thereby lowering power consumption while still maintaining complete image data buffering capability through intelligent data filtering
Solution Approach 2:
The patent applies different storage strategies to different pixel data within the same horizontal line. The first pixel data is stored in the register for comparison, while subsequent identical pixel data is skipped from buffer memory storage. This localized differentiation in storage quality optimizes power consumption by reducing redundant operations on identical data
2Reliability
If the memory device performs frequent storage and output operations for all pixel data, then data buffering completeness is maintained, but operation complexity increases
Solution Approach 1:
The patent performs preliminary comparison of subsequent pixel data with the first pixel data stored in the register before executing storage operations. This preliminary action identifies identical data that can be skipped, reducing the complexity of buffer memory operations while ensuring data buffering completeness through systematic comparison and selective storage
3Use of energy by moving object
If the memory device stores only unique pixel data by comparison, then power consumption is reduced, but data storage completeness may be compromised
Solution Approach 1:
The patent creates a copy of the first pixel data in the register and uses this copy for comparison with subsequent pixel data. This copying mechanism enables efficient identification of identical data for skipping storage operations, reducing power consumption while maintaining data storage completeness through accurate comparison-based selection
Data Source
AI summary
Disclosed are a memory device and a read/write method of the memory device and, more particularly, a memory device and a read/write method of the memory device capable of reducing power consumption of a display device by reducing a storage operation and an output operation of the memory device for a plurality of pieces of pixel data.