Character Displacement for Small Screen Legibility
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Solution Overview
Problem
Display apparatuses with varying resolutions and sizes pose challenges in maintaining character visibility, often resulting in illegible characters due to reduced pixel count and jagged contours.
Innovation Solution
An image processing apparatus that displaces characters on a display image plane using predetermined rules, adjusting pixel values based on positional relations to ensure visibility, regardless of resolution or size changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the character size is reduced to fit small-screen display apparatuses, then the display apparatus can show content on diverse platforms including mobile phones and wearable terminals, but the character visibility deteriorates because the number of pixels presenting the character is diminished
Solution Approach 1:
The patent applies temporal dynamics by sequentially displaying multiple images with thinned-out pixels during image movement. Instead of static high-resolution characters, the system dynamically presents a sequence of lower-resolution frames that the human visual system integrates over time, achieving high perceived resolution on small screens without requiring high pixel density in each individual frame
Solution Approach 2:
The patent transitions from spatial resolution to temporal resolution by adding the time dimension to the display process. Rather than increasing horizontal and vertical pixel density (spatial dimension), the system uses sequential display across time frames, leveraging the human visual system's temporal integration capability to achieve effective high resolution on limited pixel displays
2Adaptability or versatility
If the character size is reduced on small-screen display apparatuses, then content can be displayed on mobile terminals and wearable devices, but the character contour appears jagged which further deteriorates character visibility
Solution Approach 1:
The patent uses dynamic sequential display where characters are presented across multiple time frames with slight positional variations and pixel thinning. This temporal dynamics prevents static jagged contours by continuously refreshing the character representation, allowing the human visual system to integrate the moving images into a smooth perceived contour
Solution Approach 2:
The system employs periodic display of thinned-out pixel images during character movement or refresh cycles. By periodically presenting simplified pixel patterns that shift or move, the human visual system integrates these periodic stimuli to perceive complete, smooth character contours rather than jagged static edges
3Adaptability or versatility
If the number of pixels presenting the character is diminished on small screens, then the character can be displayed on wearable terminals and mobile phones, but the lines constituting the character appear connected with one another making the character illegible
Solution Approach 1:
The patent applies temporal dynamics by displaying a sequence of images with thinned-out pixels during movement. The human visual system integrates these temporal variations, allowing characters to remain legible even when individual frames have reduced pixel density and lines appear connected in static views
Solution Approach 2:
The human visual system acts as an intermediary that integrates temporal information from multiple thinned-out pixel frames. This biological mediator reconstructs complete character information from incomplete spatial data, maintaining legibility despite reduced pixel counts on small display apparatuses
Data Source
AI summary
Content data of a display target is acquired in accordance with a user's operations and is used to determine a configuration of a display image. Of the regions to be rendered using fonts in the display image, the region in which a character is to be displaced by a very small amount is determined. The characters targeted for displacement are rendered while being displaced over time in accordance with predetermined displacement rules. The characters not targeted for displacement are rendered in a reference position. With all characters rendered, the display image is completed and output. The processes of S12 to S24 are repeated until display is terminated.