Display Apparatus Ambient Illuminance Control via On-Screen Data
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Solution Overview
Problem
Existing display apparatuses require manual adjustment of display characteristics like brightness and contrast based on ambient illuminance levels, which can be inconvenient and unclear, especially due to the subjective nature of user preferences and varying ambient conditions.
Innovation Solution
A method and apparatus that automatically adjust display characteristics, such as contrast, brightness, color density, and backlight, based on detected ambient illuminance levels using a digital scheme, with optional manual user override through a user interface, and display the current settings as on-screen data for user confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of display characteristics is required, then user preference can be accommodated, but user convenience deteriorates and operation complexity increases
Solution Approach 1:
The display apparatus automatically adjusts display characteristics based on ambient illuminance detection without requiring user intervention. The system serves itself by using the illuminance sensor to detect ambient light levels and automatically modifying brightness, contrast, and other display parameters, thereby eliminating the need for manual user adjustment while still adapting to user preferences through automated environmental response
Solution Approach 2:
The system implements a feedback loop where the illuminance sensor continuously monitors ambient light conditions and feeds this information back to the control unit, which then automatically adjusts display characteristics. This closed-loop feedback mechanism enables the display to adapt to changing environmental conditions in real-time without user input, resolving the contradiction between automated adaptation and manual control
2Ease of operation
If automatic control based on ambient illuminance is implemented, then user convenience improves, but display characteristic precision may deteriorate due to subjective nature of preferences
Solution Approach 1:
The system automatically modifies display parameters such as brightness, contrast, and color depth based on detected ambient illuminance levels. By changing these parameters dynamically in response to environmental conditions, the system achieves convenient automatic control while maintaining appropriate display precision through scientifically-based illuminance-response relationships
Solution Approach 2:
The display characteristics are made dynamic rather than static, automatically adjusting in real-time based on ambient illuminance conditions. This dynamic adaptation allows the system to optimize display precision for each environmental condition while maintaining user convenience through automation, rather than requiring fixed manual settings
3Manufacturing precision
If multiple display characteristics are adjusted individually, then display precision can be optimized, but operation time and complexity increase
Solution Approach 1:
The system merges the adjustment of multiple display characteristics into a single automated operation. Instead of requiring users to adjust brightness, contrast, and other parameters separately, the system simultaneously optimizes all relevant characteristics based on ambient illuminance detection, thereby reducing adjustment time while maintaining display precision
Solution Approach 2:
The system performs preliminary automatic adjustment of display characteristics before the user needs to view content. By pre-adjusting brightness, contrast, and other parameters based on ambient conditions, the system eliminates the need for time-consuming manual adjustments while ensuring optimal display precision is already in place
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides automatic and precise control of display characteristics according to ambient conditions, reducing user inconvenience and enabling real-time recognition of setting values, thereby enhancing user experience and power efficiency.
Implementation Method 1
detecting a level of ambient illuminance with respect to the display screen
Data Source
AI summary
A display characteristic control method provides an on-screen display (OSD) of display characteristics values automatically controlled according to ambient illuminance levels, to enable user recognition and confirmation of current values. A display apparatus adopting the method includes a display module for displaying a video signal; an illuminance sensor for detecting a level of ambient illuminance; a system controller for adjusting, based on the detected ambient illuminance, at least one display characteristic of the display module and for generating a set of control values corresponding to the adjusted at least one display characteristic; a display characteristic controller for controlling the display module using the adjusted at least one display characteristic; and an OSD generator for generating OSD data for display on a display screen together with the video signal, the displayed OSD data corresponding to the display characteristic control values of the adjusted at least one display characteristic.