Data Driver Control Method for Display Power and Signal Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing performance requirements of display products, such as higher resolution and frame rate, lead to accelerated data transmission speeds, resulting in increased power consumption and adverse effects on signal transmission characteristics, including reduced ability to resist electromagnetic interference and wireless wide area network signal transmission reliability.
Innovation Solution
A control method for a data driver that utilizes a data comparison signal to determine the comparison relationship between first and second display data for adjacent pixel rows, allowing the data driver to operate in different states based on this relationship, thereby reducing power consumption and optimizing system power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission speed is accelerated to achieve higher resolution and frame rate, then display performance is improved, but power consumption increases and signal transmission reliability deteriorates
Solution Approach 1:
The data driver dynamically adjusts its operation mode based on the comparison between current and previous pixel row data. When data changes are detected, the driver operates in a high-performance mode with full signal transmission. When data remains unchanged, it switches to a low-power mode, thereby adaptively optimizing the balance between transmission speed and reliability while reducing power consumption.
Solution Approach 2:
The invention changes the operational parameters of the data driver by introducing a data comparison mechanism. Based on the comparison result (whether data has changed or not), the driver adjusts its transmission characteristics, effectively modifying signal transmission parameters to match actual display needs, thus improving reliability without sacrificing necessary performance.
2Productivity
If data transmission speed is accelerated to achieve higher resolution and frame rate, then display performance is improved, but power consumption increases
Solution Approach 1:
The data driver performs periodic data comparison between adjacent pixel rows before each transmission cycle. This periodic check enables the system to identify unchanged data regions and skip redundant high-power transmission operations, thereby reducing overall power consumption while maintaining display performance through selective full-speed transmission only when necessary.
Solution Approach 2:
Instead of always performing full data transmission at high speed, the invention applies partial action by transmitting only the necessary data (when changes are detected). This avoids excessive power consumption associated with continuous high-speed transmission of unchanged data, while still achieving the required display performance when data actually changes.
3Productivity
If data transmission speed is accelerated to achieve higher resolution and frame rate, then display performance is improved, but ability to resist electromagnetic interference deteriorates
Solution Approach 1:
The invention converts the potential harm of high-speed transmission (susceptibility to electromagnetic interference) into a benefit by using data comparison to intelligently control transmission. By detecting unchanged data, the system avoids unnecessary high-speed transmissions that would be vulnerable to interference, thereby turning the limitation into an opportunity for improved signal reliability.
Data Source
AI summary
A control method for a data driver, a control method for a timing controller, a data driver control apparatus, a timing controller, an electronic device, and a storage medium are provided. The control method for the data driver includes: obtaining a data comparison signal, where the data comparison signal represents a comparison relationship between first display data for enabling a first pixel row to display and second display data for enabling a second pixel row to display, and in time, the second pixel row is driven to display after the first pixel row is driven to display; and controlling an operation state of the data driver according to the data comparison signal.