OSD Triggering Region Offset Correction for Rotating Displays
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Solution Overview
Problem
Current digital multimedia display devices experience OSD triggering region deviations and distortion when the screen is inverted or flipped, leading to response errors due to the OSD triggering region not aligning with the OSD displaying region.
Innovation Solution
A method and system that acquire rotary angle parameters and coordinate offsets for both the OSD displaying and triggering regions, adjusting the OSD triggering region until alignment is achieved, using a monitoring and angle acquisition module, OSD displaying region coordinate parameter acquisition module, and OSD triggering region offset correction module to ensure accurate triggering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If display region scaling is adopted to solve OSD triggering region deviation, then the OSD triggering region alignment is improved, but screen distortion and triggering errors occur when inverting and flipping the screen
Solution Approach 1:
The patent applies different coordinate transformation rules to different regions of the display. Specifically, it separately handles the OSD displaying region coordinates and OSD triggering region coordinates through independent transformation calculations, ensuring that each region maintains its proper alignment without causing distortion to other parts of the screen.
Solution Approach 2:
The patent changes the coordinate parameters dynamically based on screen rotation state. It calculates transformed coordinates using rotation angle parameters and applies different transformation formulas depending on whether the screen is in normal, inverted, or flipped state, thereby adapting the triggering region alignment to each display orientation without causing distortion.
2Adaptability or versatility
If screen rotation is implemented to achieve diversified display orientations, then display versatility is improved, but OSD triggering region deviates from OSD displaying region
Solution Approach 1:
The patent implements dynamic coordinate transformation that adapts to different screen rotation states. It continuously monitors the rotation state (normal, inverted, flipped) and dynamically adjusts the OSD triggering region coordinates through calculated transformations, ensuring proper alignment is maintained across all display orientations.
Solution Approach 2:
The patent handles different rotation states (normal, inverted, flipped) with asymmetric transformation rules. Each rotation state has its specific coordinate transformation formula, allowing the system to properly align OSD regions regardless of the display orientation, thereby achieving versatility without sacrificing precision.
Data Source
AI summary
A method and system for correcting OSD triggering region offset. Method comprises: when multimedia display device rotating is monitored, acquiring rotary angle parameter of multimedia display device; acquiring first coordinate parameter of OSD displaying region of multimedia display device according to rotary angle parameter; acquiring second coordinate parameter of OSD triggering region of multimedia display device, determining whether OSD displaying region coincides with OSD triggering region according to first coordinate parameter and second coordinate parameter, if not, redrawing OSD triggering region until OSD displaying region is detected coinciding with OSD triggering region, thus finishing correction of OSD triggering region offset. According to current screen rotation and coordinate parameter displayed by OSD, OSD triggering region is drawn by means of algorithm application, so OSD can be controlled and triggered accurately and normally, operation is simple, and present invention is convenient and practical.