Display Driver Circuit Buffering for Faster Multi-Mode Switching
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Solution Overview
Problem
Existing display driver integrated circuits require large-capacity memory to drive various display modes, which can be inefficient and energy-consuming.
Innovation Solution
A display driver integrated circuit with a memory storing driving information for multiple display modes, a signal controller to retrieve and convert image signals, and a data driver to generate data signals based on this information, utilizing a buffer to store frequently accessed driving information for faster processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If large-capacity memory is used to store driving information for various display modes, then the display driver can support multiple display modes, but the memory capacity and energy consumption increase
Solution Approach 1:
The memory is segmented into a first memory region for storing image data and a second memory region for storing driving information. This segmentation allows the system to store only essential driving parameters (such as pixel format, timing information, and data format) separately from the large image data, reducing the overall memory capacity needed while maintaining support for multiple display modes.
Solution Approach 2:
The patent extracts and stores only the critical driving information parameters in the second memory region, rather than storing complete mode configurations. By taking out only the essential elements (pixel format, timing, data format) needed to adapt image data to different display modes, the system achieves multi-mode support with reduced memory requirements.
2Adaptability or versatility
If driving information is stored in memory for each display mode, then the system can adapt to different display modes, but the energy consumption increases
Solution Approach 1:
By segmenting memory into separate regions for image data and driving information, the system can efficiently manage and access only the necessary driving parameters when switching display modes, reducing the energy required for memory operations compared to accessing large amounts of data.
Solution Approach 2:
The system extracts and stores only essential driving parameters (pixel format, timing information, data format) in a dedicated second memory region, minimizing the amount of data that needs to be processed and accessed during mode switching, thereby reducing energy consumption while maintaining adaptability.
3Adaptability or versatility
If driving information is retrieved from memory for each display mode change, then the system can adapt to different modes, but the processing time increases
Solution Approach 1:
The segmented memory structure with a dedicated second region for driving information enables rapid access to mode-specific parameters without scanning through large amounts of image data, significantly reducing the time required to retrieve necessary information when switching display modes.
Solution Approach 2:
By extracting and storing only critical driving parameters in the second memory region, the system minimizes the data retrieval time during mode switching, as only essential information (pixel format, timing, data format) needs to be accessed rather than processing complete mode configurations.
Data Source
AI summary
An example embodiment provides a display driver integrated circuit, including: a memory including a plurality of pieces of driving information corresponding to a plurality of pieces of display mode information, the plurality of display mode information regarding a method of processing an image signal; a signal controller including a buffer, the signal controller configured to receive display mode information and image signals from a host, retrieve driving information corresponding to the display mode information among the plurality of pieces of driving information from the memory, the plurality of pieces of driving information including the driving information, write the driving information in the buffer, and convert the image signal into image data based on the driving information written in the buffer; and a data driver configured to generate a plurality of data signals based on the image data.