Data Driver Parallel Scanning for High Refresh Rate Charging
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Solution Overview
Problem
Higher-frequency displays face issues with insufficient charging time due to limited refresh frequency, leading to poor visual effects.
Innovation Solution
A data driver with a buffer module and multiple data processing paths that synchronously output image data to rows of sub-pixels, allowing simultaneous charging of two rows of sub-pixels, thereby reducing the required charging time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the refresh frequency of the display is increased to achieve higher-frequency display, then the display performance is improved, but the charging time of sub-pixels becomes insufficient leading to poor visual effect
Solution Approach 1:
The patent divides the display panel into multiple independent scanning regions (first scanning region and second scanning region) that can be scanned simultaneously. By segmenting the display area and using multiple data processing paths, the charging task is distributed across parallel channels, effectively increasing the charging speed and ensuring sufficient charging time even at high refresh frequencies.
Solution Approach 2:
The patent transitions from sequential row-by-row scanning to parallel scanning by introducing multiple scanning regions and data processing paths. This dimensional change from one-dimensional sequential processing to two-dimensional parallel processing allows multiple rows of sub-pixels to be charged simultaneously, resolving the charging time insufficiency at high refresh rates.
2Productivity
If the refresh frequency is increased to improve display performance, then the visual quality is enhanced, but the charging time limitation causes display problems
Solution Approach 1:
The display panel is segmented into multiple scanning regions with independent data processing paths. This segmentation allows the system to maintain high productivity through parallel processing while ensuring reliability by providing each region with dedicated charging resources, preventing display quality degradation even at high refresh frequencies.
Solution Approach 2:
The patent implements preliminary action by pre-organizing the display panel into multiple scanning regions and preparing multiple data processing paths in advance. This preliminary segmentation and resource allocation ensures that when high refresh frequency operation is required, the system can immediately switch to parallel charging mode, maintaining both productivity and reliability without display quality issues.
3Duration of action of moving object
If multiple data processing paths are used to enable simultaneous charging of multiple sub-pixel rows, then the charging time is reduced, but the device complexity increases
Solution Approach 1:
The data driver is segmented into multiple independent data processing paths, each capable of processing data for a specific scanning region. This segmentation reduces the complexity of controlling each individual path while achieving the overall goal of parallel charging, as each segment operates independently with simplified control logic.
Solution Approach 2:
The patent implements dynamic configuration where the number and activation of data processing paths can be adjusted based on the display panel's actual requirements. This dynamic approach allows the system to optimize between charging speed and device complexity, activating only the necessary number of parallel paths rather than maintaining a fixed complex structure.
Data Source
AI summary
A data driver includes a buffer module and at least two data processing paths. The buffer module is configured to synchronously output image data corresponding to at least two rows of sub-pixels. Each of the at least two data processing paths is connected to the buffer module and a set of data lines and is configured to synchronously output a data signal corresponding to the image data to the at least two rows of sub-pixels.