Display Controller Brightness Adjustment for Input Recognition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of electronic devices with touch panels struggle to quickly recognize which operator instruction has been input, as existing methods only provide vibration feedback without clear differentiation between input instructions.
Innovation Solution
A display controller that includes a display section to show an operation screen at a predetermined brightness, a depression detection section to identify the depression of instruction images, and a brightness adjustment section to change the screen brightness based on the detected input, allowing users to differentiate between input instructions through varying brightness levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If vibration feedback is used to indicate touch input, then the user can recognize that an input has been made, but the user cannot quickly recognize what kind of operator instruction has been input
Solution Approach 1:
The patent applies brightness changes (visual feedback) instead of vibration feedback to indicate different operator instructions. When a user touches a specific region, the backlight unit corresponding to that region changes brightness to a predetermined level, providing immediate visual recognition of the input instruction type.
Solution Approach 2:
The patent implements immediate visual feedback by changing the brightness of the backlight unit corresponding to the touched region. This feedback mechanism allows the user to recognize both that an input has been made and what specific instruction was input, resolving the information loss problem.
2Loss of information
If separate operation screens are displayed for each operator instruction, then the user can recognize what instruction has been input, but the device complexity increases
Solution Approach 1:
Instead of displaying separate operation screens for each instruction, the patent uses brightness changes of the backlight unit corresponding to the touched region. This provides instruction recognition feedback without requiring complex screen transitions or multiple display modes.
Solution Approach 2:
The patent extracts the essential feedback function from complex operation screen displays and implements it through simple backlight brightness changes. This extracts only the necessary information (which instruction was input) without the overhead of full screen displays.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
Disclosed is a display controller(100) which includes: a display section (74) operable to display thereon an operation screen (W) at a predetermined reference brightness, wherein the operation screen (W) has one or more instruction images (T1, T2, T3) arranged thereon and each depressable to input a specific operator instruction; a depression detection section (12) operable to detect a depression of each of the instruction images (T1, T2, T3); and a brightness adjustment section (14) operable, when a depression of one (T1) of the instruction images is detected by the depression detection section (12), to change brightness of the operation screen (W) from the reference brightness by a change amount preliminarily associated with the one instruction image (T1).