Data Driver Control Method for Display Panels
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Solution Overview
Problem
The increasing performance requirements of display products, such as higher resolution and frame rate, lead to increased power consumption in data transmission and processing, resulting in higher costs and potential adverse effects on signal transmission stability and reliability, especially in low voltage domains.
Innovation Solution
A control method for a data driver that obtains and compares data signals for sub-pixels in a display panel, allowing the data driver to operate in different states based on the comparison relationships between first and second display data, reducing power consumption by caching and processing data efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission speed is increased to meet higher resolution and frame rate requirements, then display performance is improved, but power consumption increases
Solution Approach 1:
The patent applies preliminary action by comparing display data of adjacent pixel rows in advance before data transmission. The timing controller performs data comparison between first pixel row and second pixel row data, generating comparison results that indicate whether data changes occur. This allows the data driver to be prepared in advance with the appropriate operation state, avoiding unnecessary full-data transmission and reducing actual power consumption during high-performance operation.
Solution Approach 2:
The patent implements dynamics by making the data driver's operation state adjustable and adaptive. The data driver can dynamically switch between different operation states (first state for full data transmission, second state for reduced data transmission) based on the comparison results from adjacent pixel rows. This dynamic adaptation allows the system to maintain high display performance when needed while reducing power consumption when data changes are minimal.
2Productivity
If data transmission speed is increased to meet higher resolution and frame rate requirements, then display performance is improved, but signal transmission stability deteriorates
Solution Approach 1:
The timing controller performs data comparison between adjacent pixel rows in advance, generating comparison results that indicate whether data changes occur. This preliminary action allows the system to identify opportunities for data reduction before transmission, ensuring that only necessary data is transmitted at high speeds, thereby maintaining signal stability while achieving high display performance.
Solution Approach 2:
The data driver dynamically adjusts its operation state based on comparison results, switching between full data transmission mode and reduced data transmission mode. This dynamic adjustment ensures that high-speed transmission is used only when necessary (when data changes occur), while maintaining stable, lower-speed transmission when data remains unchanged, thus preserving signal transmission stability.
3Productivity
If data driver operates in high performance mode to meet frame rate requirements, then display performance is improved, but operation power consumption increases
Solution Approach 1:
The timing controller performs data comparison between adjacent pixel rows in advance, generating comparison results that indicate whether data changes occur. This preliminary analysis allows the system to determine in advance whether high-performance operation is actually needed, enabling the data driver to operate in high-performance mode only when necessary, thereby reducing overall power consumption while maintaining required frame rates.
Solution Approach 2:
The data driver operates in different operation states dynamically: a first operation state for high-performance mode when data changes occur between adjacent pixel rows, and a second operation state for reduced-power mode when data remains unchanged. This dynamic state adjustment allows the system to achieve high frame rates when needed while significantly reducing operation power consumption during static or slowly-changing display content.
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 m data comparison signals respectively, where among the m data comparison signals, an i-th data comparison signal represents a comparison relationship between first display data for enabling an i-th group of sub-pixels in the first pixel row to display and second display data for enabling an i-th group of sub-pixels in the 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, where i is an integer, and 0<i≤m; and controlling an operation state of the data driver according to each data comparison signal of the m data comparison signals.