Signal Processing Module Memory Segmentation for Display Power Reduction
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Solution Overview
Problem
Display devices face challenges in reducing power consumption and heat generation due to the memory requirements of signal processing modules, which hinder their suitability for efficient operation.
Innovation Solution
A signal processing module with a memory divided into sub-memories that can be powered separately, allowing selective power supply based on the bit size of the image signal, enabling efficient conversion and display without excessive power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a memory is used in the signal processing module for converting image signals, then the display quality is improved, but the power consumption and heat generation increase
Solution Approach 1:
The memory is divided into multiple sub-memories (first sub-memory, second sub-memory, third sub-memory) that can be independently controlled. Only the necessary sub-memories are activated based on the input signal bit depth, reducing overall power consumption while maintaining display quality when needed.
Solution Approach 2:
The memory configuration is made dynamic by selectively enabling or disabling sub-memories based on the bit depth of the input image signal. This allows the system to adapt its resource usage to the actual processing requirements, optimizing the balance between display quality and power consumption.
2Measurement precision
If a memory is used in the signal processing module for converting image signals, then the display quality is improved, but the heat generation increases
Solution Approach 1:
The memory is segmented into multiple independently controllable sub-memories. By activating only the necessary sub-memories based on signal requirements, the overall heat generation is reduced while maintaining display quality when high-bit-depth processing is needed.
Solution Approach 2:
The system changes its operational parameters by dynamically adjusting which sub-memories are active based on the input signal characteristics. This parameter adjustment optimizes the trade-off between display quality and heat generation.
3Use of energy by moving object
If the memory is divided into sub-memories for selective power supply, then the power consumption is reduced, but the device complexity increases
Solution Approach 1:
The memory is divided into multiple sub-memories with independent power control, enabling selective activation based on processing needs. This segmentation reduces power consumption by keeping unused portions in low-power states.
Solution Approach 2:
The divided memory structure serves multiple functions: it provides full-capacity storage when needed while enabling power-saving mode by activating only necessary sub-memories. The same hardware structure adapts to different operational requirements.
Data Source
AI summary
A display device including a signal processing module which can contribute to the reduction of power consumption and a calorific value is provided. The display device includes a signal processing module and a display panel. The signal processing module includes a memory that is divided into two or more sub-memories that can be powered on separately, and an image signal processor to generate a second image signal from a first image signal using the memory. The display panel displays an image corresponding to the second image signal, and the first image signal has a first bit size or a second bit size less than the first bit size. Power is selectively supplied to the sub-memories according to the bit size of the first image signal.