Dynamic On-Screen Keypad Display for Input Devices
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Solution Overview
Problem
Display apparatuses currently display an on-screen keypad regardless of the input method, leading to increased complexity and user confusion, especially when using devices with physical letter keys like wireless keyboards.
Innovation Solution
A display apparatus that selectively displays an on-screen keypad based on whether the connected control device includes letter keys for inputting letters, using a determination unit to assess the presence of letter keys and controlling the display to show a user interface with or without the keypad accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display apparatus always displays an on-screen keypad regardless of the input method, then letter input is enabled for devices without physical keys, but screen complexity increases and user confusion occurs
Solution Approach 1:
The display apparatus dynamically adjusts the user interface by detecting the type of control device connected and selectively displaying or hiding the on-screen keypad accordingly. When a device with physical letter keys (like a wireless keyboard) is detected, the keypad is hidden; when a device without physical keys (like a remote controller) is detected, the keypad is displayed. This dynamic adaptation resolves the contradiction by making the interface complexity conditional rather than static.
Solution Approach 2:
The system changes the UI parameter (presence of on-screen keypad) based on the detected control device type. The controller modifies the display configuration from showing the keypad to hiding it, depending on whether the connected device has physical letter keys. This parameter change allows the system to adapt to different input methods while maintaining appropriate screen complexity for each scenario.
2Adaptability or versatility
If the on-screen keypad is displayed for all control devices, then universal letter input is supported, but user experience deteriorates due to screen clutter
Solution Approach 1:
The user interface dynamically adapts to the connected control device by detecting device characteristics and adjusting the display accordingly. The system maintains universal letter input support while enhancing user experience by hiding the on-screen keypad when a device with physical letter keys is detected, thus avoiding screen clutter and providing a cleaner, more intuitive interface.
Solution Approach 2:
The display apparatus implements feedback by detecting the type of control device connected and using this information to adjust the UI configuration. The system receives feedback about the control device capabilities and responds by appropriately showing or hiding the on-screen keypad, thereby optimizing user experience based on the actual input method being used.
Data Source
AI summary
A display apparatus is provided. The display apparatus includes a display configured to display a user interface window for receiving a letter input; a communication interface configured to receive a control instruction for inputting letters from a control device; and a controller configured to control the display to selectively display an on-screen keypad for inputting letters on the user interface window based on whether the control device includes letter keys for inputting letters.


