Electronic Paper Display Touch Track Prediction Correction
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Solution Overview
Problem
Conventional electronic paper displays face challenges in reducing processing time for wrong touch track predictions and improving display quality, particularly when displaying predicted touch tracks in black, which affects user viewing quality.
Innovation Solution
An electronic paper display system that integrates a touch panel and a processing circuit, using a filter module and line drawing module to predict touch tracks and display them in gray scale, allowing for quicker correction and reduced processing time for wrong predictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the predicted touch track is displayed on the display panel in black, then the processing time for wrong predictions can be reduced, but the user's viewing quality is affected
Solution Approach 1:
The patent applies local quality by displaying the predicted touch track in gray scale rather than black, creating a subtle visual difference that is less noticeable to users. This localized color adjustment maintains processing efficiency while minimizing impact on viewing quality.
Solution Approach 2:
The patent utilizes color changes by switching from displaying the predicted touch track in black to gray scale. This color modification reduces the visual impact on users while still allowing the system to process and correct wrong predictions efficiently.
2Object-affected harmful factors
If the predicted touch track is converted from black into white, then the viewing quality can be improved, but it takes longer processing time
Solution Approach 1:
The patent applies preliminary action by pre-calculating and displaying the predicted touch track in gray scale before actual touch input is received. This allows the system to prepare the display in advance, reducing the processing time required when corrections need to be made, while maintaining good viewing quality.
Solution Approach 2:
The patent utilizes parameter changes by modifying the display color parameter from black to gray scale. This parameter adjustment optimizes both viewing quality and processing time, as gray scale provides better visual quality than black while requiring less processing time for conversion compared to white.
Data Source
AI summary
An electronic paper display and a driving method thereof are provided. The electronic paper display includes an electronic paper display panel, a touch panel and a processing circuit. The touch panel outputs a first touch coordinate of a current touch and a second touch coordinate of a next touch. The processing circuit executes a filter module and a line drawing module. The filter module outputs a first measured position data and a first predicted position data to the line drawing module. The line drawing module drives the electronic paper display panel to display a first predicted track. The filter module outputs a second measured position data to the line drawing module. The line drawing module determines whether a second track display coordinate corresponding to the second measured position data is equal to the first predicted display coordinate to correct the first predicted track.