Dual Touch Panels for One-Handed Input Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile terminals with transparent display panels and both front and rear touch panels face instability in performing touch inputs with one hand, making it difficult for users to input data effectively through both sides of the screen.
Innovation Solution
A touch input method that detects inputs from either the front or rear touch panels, determines the user's intent for data input, and displays a keypad on the screen accordingly, allowing stable input through both panels when held with one hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transparent display panel with both front and rear touch panels is used, then the versatility of touch input is improved, but the stability of one-handed operation deteriorates
Solution Approach 1:
The touch input functionality is segmented into front touch panel and rear touch panel operations. The controller separately processes touch events from each panel, enabling independent detection and response. This segmentation allows the system to maintain versatility while managing complexity through modular event handling.
Solution Approach 2:
The patent inverts the traditional touch input paradigm by enabling rear touch panel input as the primary input method while the front touch panel serves secondary functions. This inversion allows one-handed operation where the user holds the device and inputs data through the rear touch panel with their fingers, while the front display remains visible for feedback.
2Adaptability or versatility
If touch input is enabled on both front and rear panels, then the functionality is improved, but the complexity of input detection deteriorates
Solution Approach 1:
The controller is designed with universal touch event handling capability that can process inputs from both front and rear touch panels through a unified detection mechanism. The same controller logic handles both panels, reducing the need for separate complex processing systems and simplifying the overall architecture while maintaining multi-functional input capability.
Solution Approach 2:
The controller acts as an intermediary that receives and standardizes touch events from both front and rear touch panels. It mediates between the two panels and the rest of the system, converting diverse touch inputs into a unified event format that simplifies downstream processing and reduces detection complexity.
3Productivity
If the keypad is displayed on the touch screen, then the data input capability is improved, but the visibility through the transparent display deteriorates
Solution Approach 1:
The patent resolves the conflict between keypad display and transparent visibility by utilizing the rear touch panel dimension. Instead of displaying the keypad on the front transparent display which would block visibility, the keypad is presented on the rear surface where it does not interfere with the transparent display's light transmission. Users interact with the keypad through the rear touch panel while maintaining visibility through the front display.
Data Source
AI summary
A touch input method and a mobile terminal are provided. The mobile terminal includes a touch screen having a transparent display panel, a front touch panel configured to detect a touch input corresponding to the front of the transparent display panel, and a rear touch panel configured to detect a touch input corresponding to a rear of the transparent touch panel. The touch input method includes detecting a touch input from one of the front touch panel and the rear touch panel, determining whether a user's intent is a data input via the rear touch panel in response to the touch input, and displaying a keypad on a top of the touch screen if the user's intent is determined as data input via the rear touch panel.