Display Panel Scanning with Staggered Sub-pixels
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Solution Overview
Problem
The increasing demand for high display resolution and refresh rate in virtual reality technologies requires more efficient charging times for display panels, which existing methods struggle to meet due to limitations in scanning and data processing.
Innovation Solution
A method where a data drive chip controls sub-pixels in a display panel to scan high-definition areas line by line and low-definition areas in groups of N rows simultaneously, with staggered pixel arrangements and shared grayscale data to optimize scanning efficiency and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If all rows of sub-pixels are scanned line by line to ensure high display resolution, then the display quality is improved, but the scanning time increases and refresh rate decreases
Solution Approach 1:
The patent divides the display panel into multiple regions with different scanning strategies. Specifically, it segments the scanning process into: (1) a first region scanned line by line with full resolution, (2) a second region scanned with N rows simultaneously, and (3) a third region scanned with M columns simultaneously. This segmentation allows different parts of the display to use optimized scanning methods according to their requirements, resolving the contradiction between high resolution and high refresh rate.
Solution Approach 2:
The patent applies different scanning qualities to different regions of the display panel. The first region (containing important display content) receives high-quality line-by-line scanning, while the second and third regions use lower-quality simultaneous row/column scanning. This local quality differentiation allows the system to maintain high refresh rates overall while preserving display quality where it matters most.
2Measurement precision
If grayscale data is processed and output for every row individually, then the display accuracy is improved, but the data processing time and power consumption increase
Solution Approach 1:
The patent merges the processing of grayscale data for multiple rows into a single operation. When scanning N rows simultaneously in the second region, the same grayscale data is merged and output to all N rows at once, rather than processing each row individually. This merging significantly reduces data processing time and power consumption while maintaining acceptable display quality for those regions.
3Device complexity
If the scanning mode is fixed for the entire display panel, then the control complexity is reduced, but the charging efficiency and refresh rate cannot be optimized
Solution Approach 1:
The patent implements a dynamic scanning control system that adaptively adjusts the scanning mode for different regions and conditions. The data drive chip dynamically determines whether to use line-by-line scanning, N-row simultaneous scanning, or M-column simultaneous scanning based on the display content and performance requirements. This dynamic approach increases charging efficiency and refresh rate while maintaining manageable control complexity through automated region classification.
Data Source
AI summary
A method for driving a display panel, a display drive circuit, a display device and a computer device are disclosed. After receiving an image to be displayed sent by a graphics processor, a data drive chip controls respective rows of sub-pixels containing a high-definition display area in a connected display panel to be scanned line by line according to a position of the high-definition display area in the image to be displayed, and at the same time, the data drive chip controls respective rows of sub-pixels containing only a low-definition display area in the display panel to be scanned per N rows simultaneously according to a position of the low-definition display area in the image to be displayed, where N is an even number greater than 1.