Touch Panel Display Control for Stable Freehand Drawing
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Solution Overview
Problem
Existing display control systems for touch panels in vari-angle and slidable monitors face challenges in maintaining a stable positional relationship during freehand drawing, leading to instability and inaccurate trajectories due to the hinge mechanism, and lack a mechanism to automatically switch to a suitable operation mode for touch operations.
Innovation Solution
A display control apparatus and method that automatically switches to a freehand drawing mode by detecting the positional relationship between the display unit and the gripped body, ensuring stability during touch operations, and allowing for freehand drawing without manual mode switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display unit is connected by a hinge portion to be pivotable, then the display unit can be positioned at various angles for flexible viewing, but the display unit becomes unstable during touch operations causing inaccurate drawing trajectories
Solution Approach 1:
The system performs preliminary detection of the display unit's state (open/closed position) before the touch operation begins. Based on this detection, the control unit pre-configures the appropriate operation mode (freehand drawing mode when closed, normal mode when open), ensuring the display unit is in a stable configuration before the user performs drawing actions.
Solution Approach 2:
The system continuously monitors the state of the display unit through state detection and provides feedback by automatically switching operation modes based on the detected position. This feedback mechanism ensures that the system adapts to the display unit's physical state, maintaining stability during touch operations by selecting the appropriate mode (freehand drawing mode for stable closed position, normal mode for open position).
2Reliability
If the user manually switches operation modes before freehand drawing, then the system can be configured for the appropriate operation, but the user experience becomes complex and time-consuming
Solution Approach 1:
The system performs self-service by automatically detecting the display unit's state and switching to the appropriate operation mode without requiring manual user intervention. When the display unit is in the closed position, the system automatically enters freehand drawing mode, and when open, it switches to normal mode, eliminating the need for users to manually configure operation modes.
Solution Approach 2:
The invention replaces the mechanical/manual mode switching system with an automated electronic detection and control system. The state detection unit monitors the display unit's position, and the control unit automatically transitions between operation modes based on detected states, substituting manual mechanical switching with automated electronic control.
Data Source
Figure 1A
Figure 1B~2
Figure 3A~3D
AI summary
A display control apparatus, comprises a display unit (112) including a touch panel type display device (108) and movably connected to a body; a drawing unit (107) for drawing a display object based on coordinates touched in freehand drawing as a touch operation on the display device; a detection unit (106) for detecting a positional relationship of the display unit with respect to the body; and a control unit (109) for controlling to switch to an operation mode for receiving the freehand drawing in the case that the detection unit detects that the display unit has been moved from a state in which a touch-operable touch button is displayed on the display device and it is possible to receive a touch operation for the touch button to have a given positional relationship such that a display surface of the display device is arranged at a touchable position and the body supports the display means not to be moved by a force acting on the display surface in a direction substantially perpendicular to the display surface.