Adaptive OSD Display Control via Pixel Ratio Calculation
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Solution Overview
Problem
Existing OSD display control programs require user intervention to adjust character sizes, leading to operational burdens when used across different image display devices with varying screen pixel numbers, resulting in poor viewability of OSD elements.
Innovation Solution
An OSD display control program that automatically determines the pixel number of the OSD region and character based on stored region and character ratios relative to the total screen pixels, allowing for adaptive sizing without user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed pixel numbers for OSD region and characters are set in advance, then the OSD display control program product can be universally applied to different devices, but the viewability becomes poor when used in devices with different total pixel numbers
Solution Approach 1:
The patent changes the parameter representation from fixed pixel numbers to ratios (region ratio and character ratio). By storing ratios instead of absolute pixel values, the system can adapt to different total pixel numbers of display screens while maintaining consistent visual proportions. The control section calculates actual pixel numbers by multiplying the total pixel number by these stored ratios, enabling universal applicability without compromising viewability.
2Manufacturing precision
If user selection of character size is required, then the OSD display can be optimized for different devices, but the operational burden on the user increases
Solution Approach 1:
The system performs self-service by automatically determining the appropriate OSD region pixel number and character pixel number based on the total pixel number of the display screen and pre-stored ratios. The control section executes calculations without requiring user input or selection, thereby eliminating the operational burden while still achieving optimized display results adapted to each specific device.
3Device complexity
If fixed size OSD display region and characters are used, then the OSD display control program product is simple to implement, but it becomes impossible to recognize characters or results in poor viewability when the OSD region becomes too small or large relative to the display screen
Solution Approach 1:
The patent maintains simplicity by storing only two ratio parameters (region ratio and character ratio) instead of multiple fixed-size configurations. The control section performs simple multiplication operations to determine actual pixel numbers. This approach preserves character recognizability and viewability across different devices while keeping the program product simple to implement.
Data Source
AI summary
An OSD display control program product controlling OSD display of an image display device having a display screen, wherein the image display device includes a region ratio storage section storing, as region ratio information, the ratio of the pixel number of a region to the total pixel number of the display screen, the region in which the OSD display is performed, and the OSD display control program product makes a computer of the image display device realize: a total pixel number input step of inputting the total pixel number of the display screen as total pixel number information; a region ratio input step of inputting the region ratio information from the region ratio storage section; and a region pixel number determination step of determining, based on the total pixel number information and the region ratio information, the pixel number of the region in which the OSD display is performed.