Display Row Scanning for Complete Pixel Charging
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Solution Overview
Problem
As display devices increase in size and resolution, the charging time for each row of pixels becomes insufficient, leading to inadequate pixel charging rates and potential display issues.
Innovation Solution
A method of driving display that involves scanning sub-pixels progressively or in rows, ensuring that two adjacent rows are in an ON state for a duration greater than or equal to twice the unit scanning time, and applying data signals to at least two rows simultaneously for a duration greater than the unit scanning time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If display size and resolution are increased, then display quality is improved, but pixel charging time becomes insufficient
Solution Approach 1:
The patent segments the pixel array into multiple scanning zones and divides the charging process into multiple stages. Different scanning methods are applied to different zones (e.g., interlaced scanning for some rows, sequential scanning for others), allowing optimized charging time allocation across the entire display while maintaining high resolution and large size.
Solution Approach 2:
The patent implements periodic scanning patterns where odd and even rows are scanned in alternating periods. This allows the display to cycle through different scanning modes, ensuring that each pixel receives adequate charging time while maintaining the overall high resolution and large display area.
2Manufacturing precision
If display size and resolution are increased, then display quality is improved, but charging rate becomes inadequate
Solution Approach 1:
The patent dynamically adjusts scanning parameters such as scanning speed, line interval, and charging duration based on the specific display size and resolution requirements. This dynamic adaptation allows the system to maintain adequate charging rates even as display dimensions and pixel density increase, thereby preserving display quality.
Solution Approach 2:
The patent changes key scanning parameters including the scanning sequence, time allocation per row, and charging voltage levels to optimize the charging rate. By adjusting these parameters according to display specifications, the system achieves sufficient charging performance for large, high-resolution displays without compromising quality.
3Productivity
If scanning time per row is reduced to increase scanning speed, then productivity is improved, but pixel charging completeness deteriorates
Solution Approach 1:
The patent applies preliminary charging actions to certain pixel rows before they are fully scanned and displayed. This pre-charging ensures that pixels receive adequate charge even when scanning speed is increased, maintaining charging completeness while improving overall scanning productivity.
Solution Approach 2:
The patent applies excessive charging time to critical pixel rows that require longer charging durations. By allocating more than the minimum required charging time to specific rows, the system ensures complete pixel charging while maintaining high scanning speed across the entire display, thereby balancing productivity and reliability.
Data Source
AI summary
Embodiments of the present disclosure provide a method of driving display, and a display device. The method of driving display includes: scanning, progressively or rows by rows, a plurality of sub-pixels arranged in an N×M array, to turn on each row of sub-pixels scanned, so that a duration in which two adjacent rows of sub-pixels are simultaneously in an ON state is greater than or equal to two times a unit scanning time, wherein the unit scanning time is a time required for scanning a row of sub-pixels, N is an integer greater than 1, and M is an integer greater than 1; and applying data signals to at least two rows of sub-pixels simultaneously in the ON state, so that a duration of applying the data signals to each row of sub-pixels is greater than the unit scanning time.