Handheld Display Font Size and Brightness Adjustment
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Solution Overview
Problem
Current handheld devices require cumbersome processes to adjust display characteristics, such as font size and brightness, which inhibits user efficiency and makes it difficult to focus on desired screen elements, especially when using complex functions or during calls.
Innovation Solution
A handheld device with a touch screen and keypad that allows users to conveniently adjust font size and brightness through dedicated buttons, enabling quick and efficient changes that remain consistent across different screens and functions, using a processor to execute instructions for display control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple keys and menu sequences are used to adjust display characteristics, then display adjustment capability is achieved, but operation complexity increases and user efficiency decreases
Solution Approach 1:
The patent extracts the display adjustment function from the complex menu system and assigns it to a dedicated key on the keypad. This dedicated key directly accesses display adjustment modes without requiring users to navigate through multiple menu levels, thereby simplifying the operation while maintaining the full adjustment capability.
Solution Approach 2:
The patent implements preliminary action by pre-configuring the dedicated keypad key to immediately access display adjustment functionality. When pressed, the key directly initiates the display adjustment mode and presents available options, eliminating the need for users to perform preliminary navigation actions through complex menu structures.
2Ease of operation
If dedicated buttons are added for display adjustment, then ease of operation improves, but device hardware complexity increases
Solution Approach 1:
The patent applies multi-functionality by programming the dedicated keypad key to perform multiple functions: it can initiate display adjustment mode, cycle through different display characteristics (font size, brightness, contrast), and access different adjustment options. This allows a single physical button to handle various display adjustment tasks, minimizing hardware addition while maximizing functional capability.
3Adaptability or versatility
If screen space is increased to accommodate more functions, then functionality is improved, but character visibility and focus deteriorate
Solution Approach 1:
The patent implements dynamics by allowing real-time adjustment of display characteristics such as font size and brightness through the dedicated key. Users can dynamically change these parameters based on their current needs, enabling better character visibility and focus even when the screen displays multiple functions and elements.
Data Source
AI summary
A method and apparatus for convenient changing of a character display on a handheld device is disclosed. An example handheld device includes a screen to display an alphanumeric character, the alphanumeric character being displayable in at least two different font sizes. A user input device enables selection between the at least two different font sizes. The device includes a processor responsive to the user input device to change the font size of the alphanumeric character. A second user input device is provided to change the brightness of the screen when a user touches the second control device.