Backlight Control via Long-Press Button and Image Data Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image capture apparatuses, such as digital cameras, require complex and costly systems to automatically adjust backlight intensity based on external light levels, which can change against the user's will for power saving, and often necessitate manual menu settings for maximum or minimum light intensity, limiting user convenience and increasing device size and cost.
Innovation Solution
An image capture apparatus with a liquid crystal panel, a backlight unit, and a controller that allows users to set the backlight intensity arbitrarily through an operation member, enabling immediate changes to maximum or minimum light intensity without the need for additional sensors, thus reducing operational complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sensor for detecting brightness is added to automatically change backlight intensity, then the backlight intensity can be automatically adjusted according to external light levels, but the cost and dimension of the apparatus increase
Solution Approach 1:
The patent extracts and eliminates the brightness sensor component from the automatic backlight adjustment system. Instead of using a sensor to detect external light levels, the system uses the image capture unit's already-acquired image data to determine appropriate backlight intensity, thereby removing the need for additional sensors and reducing device complexity and cost
Solution Approach 2:
The patent introduces image data as an intermediary between the external light environment and the backlight control system. The controller analyzes image data (such as average luminance or histogram information) to infer external lighting conditions and automatically adjusts backlight intensity based on this analysis, eliminating the need for direct light sensing
2Illumination intensity
If the backlight intensity is changed to maximum or minimum through menu settings, then the light intensity can be adjusted to extreme levels, but the user cannot change the light intensity immediately
Solution Approach 1:
The patent implements preliminary action by pre-configuring the controller to respond to specific operation member inputs (such as long-pressing a button) with immediate backlight intensity changes to maximum or minimum levels. This pre-programmed response eliminates the need for users to navigate through menu screens, allowing instant adjustment of backlight intensity when needed
Solution Approach 2:
The patent introduces dynamic operation modes where the function of operation members changes based on operation duration or context. For example, a short press may incrementally adjust backlight while a long press immediately sets it to maximum or minimum, providing flexible and immediate control over backlight intensity based on user needs
3Use of energy by moving object
If the backlight intensity is automatically changed after a predetermined time for power saving, then energy consumption is reduced, but the light intensity changes against the user's will
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors user interactions and image capture activity. When the image capture unit is actively capturing images or when users interact with operation members, the system receives feedback to maintain or adjust backlight intensity accordingly, preventing automatic dimming during active use while still enabling power-saving modes during idle periods
Solution Approach 2:
The patent creates dynamic power management where the backlight control behavior changes based on system state. The controller distinguishes between idle states (where automatic power-saving dimming is appropriate) and active states (where user control or image-capture-driven control maintains backlight intensity), providing adaptive response that respects user intent while managing power consumption
4Productivity
If large step adjustments are used for backlight intensity, then the light intensity can be changed by large proportions, but the precision of light intensity control is reduced
Solution Approach 1:
The patent implements dynamic step sizing where the adjustment step size changes based on the current backlight intensity level and user needs. When transitioning from low to high intensity, larger steps are used for rapid adjustment, while near maximum or minimum levels, smaller steps provide fine-grained control. This dynamic approach allows both rapid coarse adjustment and precise fine-tuning within the same system
Data Source
AI summary
A display apparatus in which a long-time depression of a button for predetermined operations is discriminated, and a light-intensity of a display apparatus is modulated to a maximum or minimum intensity when a long-time depression is identified. This allows for setting a light intensity of a display apparatus by a simple operation.