3D Proximity Touch Panel Directional Display Control
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Solution Overview
Problem
Conventional proximity touch panel devices do not consider the direction of a finger or similar objects, leading to hidden display content and reduced visibility when the object obstructs the screen, making it difficult for users to recognize information displayed on the screen.
Innovation Solution
A touch panel system that includes a detection unit for position coordinates in X, Y, and Z directions, a direction judgment unit to determine the orientation of the detection target, and a display control unit to adjust the display to prevent content from being obscured by the detection target, ensuring that hidden information is visible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If display contents are changed merely by bringing a finger close to the proximity touch panel, then the display responsiveness is improved, but the visibility of display contents is lowered because part of the screen is hidden by the finger
Solution Approach 1:
The patent transitions from conventional 2D touch panel detection (X, Y coordinates only) to 3D proximity detection by adding Z-direction coordinate detection. This enables the system to detect the distance between the finger and screen, as well as the finger's orientation, allowing display content adjustment based on spatial position and direction to prevent hiding of important information.
Solution Approach 2:
The patent applies different display strategies to different regions of the screen based on finger direction. By determining which portion of the screen is hidden by the finger's orientation, the system selectively adjusts or relocates display content in those specific regions while maintaining normal display in unaffected areas, thus preserving overall visibility.
2Device complexity
If the touch panel detects only X and Y coordinates, then the device complexity is reduced, but the ability to prevent hidden display content is insufficient
Solution Approach 1:
The patent extends the detection capability from 2D (X, Y coordinates) to 3D by adding Z-direction coordinate detection. This additional dimension enables the system to calculate both the distance from the screen and the direction of the finger, providing the necessary information to prevent hidden display content without requiring overly complex detection hardware.
Data Source
AI summary
A display device is equipped with a proximity touch panel that detects coming into proximity or contact of a detection target; a position detection unit that detects position coordinates of the detection target whose coming into proximity or contact has been detected, the position coordinates consisting of coordinates in the X and Y directions and a coordinate in the Z direction; a display unit on which the touch panel is placed; a direction judgment unit that judges a direction of the detection target on the basis of the detected position coordinates; and a display control unit for controlling the display unit to perform a display so that a part of display contents of the display unit which would otherwise be hidden by the detection target is prevented from being hidden, on the basis of the direction of the direction-judged detection target.