Keypad Display with Segmented Touch Panel and Pressing Units
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Solution Overview
Problem
Conventional keypad devices are inconvenient due to the depth of user interface and instability in inputting instructions, especially when performing functions beyond basic phone calling and receiving, and touch screens lack tactile feedback.
Innovation Solution
A keypad display with a display panel featuring separate regions for touch input and key presses, including a touch panel for image selection and pressing units that provide tactile feedback, allowing for easier operation and improved input stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch screen is used as the keypad, then the user interface depth is reduced and key operation becomes easier, but the user cannot feel tactile feedback when pressing the keys and input stability deteriorates
Solution Approach 1:
The patent merges the advantages of both touch screens and physical keypads by integrating a touch panel with physical pressing units. The touch panel provides the simplified interface and ease of operation, while the pressing units restore tactile feedback and input stability. This combination allows the system to benefit from both approaches simultaneously.
Solution Approach 2:
The keypad is segmented into two distinct functional regions: a touch panel region for general interaction and pressing unit regions for specific key operations. This segmentation allows each region to optimize its own characteristics while working together as a unified input device.
2Reliability
If unique characters, numbers, or symbols are dedicated to each key, then phone calling and receiving functions work properly, but additional functions require multiple key strokes and user interface depth increases
Solution Approach 1:
The pressing units are designed to be multi-functional, serving both as traditional dedicated keys for phone operations and as configurable buttons for additional functions. The touch panel displays contextual information that adapts to the current function, allowing a single pressing unit to perform multiple roles without sacrificing reliability of core functions.
Solution Approach 2:
The display content on the touch panel dynamically changes based on the selected function or mode. This dynamic adaptation allows the same physical pressing units to serve different purposes at different times, reducing the need for multiple key strokes while maintaining proper function execution.
3Device complexity
If a touch panel covers the entire display region, then the device structure is simplified, but power consumption increases
Solution Approach 1:
The display region is segmented into areas covered by the touch panel and areas corresponding to the pressing units. This segmentation allows the system to use the power-consuming touch panel only where needed, while relying on the mechanical pressing units in other areas, thereby reducing overall power consumption while maintaining structural simplicity.
Data Source
AI summary
A display for a keypad and an electronic device including the display that can improve a user interface environment and stability of input in which the display for the keypad includes: a display panel having a first display region and second display regions; a circuit board disposed on the display panel and including a first opening corresponding to the first display region, second openings corresponding to the second display regions, and keys formed adjacent to the second openings; a touch panel, formed in the first display region in a shape corresponding to the first display region and arranged to fill the first opening; and a pad disposed on the circuit board and including pressing units formed to correspond to the keys.