Projector UI Orientation Alignment for Oblique Viewing
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Solution Overview
Problem
Existing display apparatuses face decreased user friendliness and operability when users interact with objects at an oblique angle to the rectangular display screen, as the operation pad is displayed parallel to the screen edges, leading to reduced visibility and usability.
Innovation Solution
A display apparatus that includes a detection section to recognize pointing actions, a display section to project images based on these actions, and a determination section to adjust the display aspect of a second image to align with the orientation of a first image, ensuring improved visibility and operability by rotating and positioning the second image in relation to the first image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the operation pad is displayed parallel to the edges of the rectangular display screen, then the operation pad can be easily positioned and displayed, but the visibility and operability deteriorate when the user faces the display screen at an oblique angle
Solution Approach 1:
The operation pad's display orientation is made dynamic rather than fixed. The determination section calculates the optimal display orientation based on the object image's orientation, and the display control section adjusts the operation pad's orientation accordingly. This allows the operation pad to adapt to different viewing angles and object orientations, resolving the contradiction between easy positioning and good operability.
2Device complexity
If the operation pad is displayed in a fixed orientation parallel to the screen edges, then the display system remains simple, but the visibility decreases when the user interacts at an oblique angle
Solution Approach 1:
The display orientation parameter of the operation pad is changed based on the object image's orientation. The determination section calculates the appropriate orientation parameter, and the display control section applies this parameter to rotate or reposition the operation pad. This parameter adaptation improves visibility for oblique viewing angles while maintaining relatively simple system architecture.
Data Source
AI summary
A projector includes a position detecting section that detects a pointing action, a projection section that projects handwritten characters on a screen based on the pointing action, and a UI controller that determines, based on the display direction of the displayed handwritten characters, the display direction of a UI screen that allows manipulation of the handwritten characters and projects the UI screen on the screen on the basis of the determined display direction.