Handwriting Stroke Contour Splitting for Half-Dry Display Rendering
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Solution Overview
Problem
Existing electronic ink screens and large-size intelligent display devices struggle to provide a high-simulation handwriting function, particularly in replicating the half-dry stroke effect of calligraphy, which requires selective pixel filling to achieve a withered thread-like appearance.
Innovation Solution
A display device and method that splits a writing stroke into sub-contours, selectively performs pixel filling on a portion of these sub-contours based on writing speed and pressure, and alternates filling manners to simulate the half-dry stroke effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If selective pixel filling is performed on sub-contours to simulate half-dry stroke effect, then handwriting simulation quality is improved, but device complexity increases
Solution Approach 1:
The stroke contour is divided into multiple sub-contours based on writing speed and pressure variations. This segmentation allows selective pixel filling on specific sub-contours to simulate the half-dry stroke effect, where different parts of the stroke have different filling states corresponding to the physical state of ink during writing.
Solution Approach 2:
Different pixel filling strategies are applied to different sub-contours based on local writing conditions. Sub-contours corresponding to higher writing speeds or lower pressures receive different filling treatment compared to those with lower speeds or higher pressures, creating local variations that simulate the natural half-dry stroke effect.
2Manufacturing precision
If the stroke contour is divided into multiple sub-contours for selective filling, then handwriting effect simulation is improved, but processing time increases
Solution Approach 1:
The stroke contour is divided into multiple sub-contours based on writing speed and pressure variations. This segmentation allows selective pixel filling on specific sub-contours to simulate the half-dry stroke effect, where different parts of the stroke have different filling states corresponding to the physical state of ink during writing.
Solution Approach 2:
Instead of applying uniform pixel filling to the entire stroke contour, the method applies pixel filling selectively to only those sub-contours that correspond to half-dry stroke conditions. This partial action reduces unnecessary processing while achieving the desired simulation effect.
Data Source
AI summary
The present disclosure provides a display device, a handwriting display method and a handwriting contour determination method, for splitting a writing track, and realizing a half-dry stroke writing effect by filling a part of sub-contours in a plurality of split sub-contours and not filling the other sub-contours. The device includes a display screen and a controller, the display screen is configured to display a content; and the controller is configured to: acquire track point information of track points in a writing track of a user; determine a stroke corresponding to the track points according to the track point information of the track points, with the stroke including a stroke contour; divide the stroke contour into K sub-contours, and select a part of sub-contours from the K sub-contours to perform pixel filling on the part of sub-contours, with an extending direction in which the stroke contour extends being the same as an extending direction in which the sub-contours extend, and K being an integer greater than 1; and controlling the display screen to display the stroke.