Ambient-Light Display Brightness Control for Outdoor Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices struggle to maintain optimal display brightness in varying light conditions, particularly under intense daylight, leading to difficulties in adjusting brightness via graphical user interfaces and potential insufficient brightness affecting viewing quality.
Innovation Solution
A display device equipped with a light sensor and control circuit that determines indoor or outdoor location based on light characteristics, adjusting display brightness using a formula that incorporates the ratio of outdoor to indoor brightness adjustment ranges, ensuring adequate brightness for outdoor viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display brightness is increased to 400-700 nits for good visibility in daylight, then the visibility is improved, but the display cannot maintain adequate brightness in intense daylight requiring at least 1000 nits
Solution Approach 1:
The display brightness is dynamically adjusted based on environmental light conditions detected by the light sensor. The control circuit automatically modifies the display brightness in real-time, transitioning from static brightness settings to dynamic adaptation, enabling the display to maintain optimal visibility across varying light conditions from indoor to intense outdoor environments
Solution Approach 2:
The patent changes the brightness parameter adaptively by detecting environmental light characteristics and adjusting the display brightness accordingly. The control circuit modifies the brightness parameter based on the detected light conditions, enabling the display to achieve at least 1000 nits in intense daylight while maintaining 400-700 nits in normal daylight conditions
2Extent of automation
If the automatic brightness adjustment function is enabled, then the brightness adjustment is automated, but the display brightness is still insufficient in intense daylight
Solution Approach 1:
The system implements feedback control by using the light sensor to continuously detect environmental light characteristics and feed this information back to the control circuit. The control circuit adjusts the display brightness based on this feedback, creating a closed-loop system that automatically adapts to changing light conditions and maintains adequate brightness even in intense daylight
3Ease of operation
If the display brightness is adjusted manually through graphical user interface, then the user can control brightness, but it is difficult to see the interface clearly in intense daylight
Solution Approach 1:
The display system performs self-adjustment by automatically detecting environmental light conditions and modifying its own brightness without requiring user interaction. This eliminates the need for users to manually adjust brightness through the graphical interface, solving the problem of interface visibility in intense daylight while maintaining ease of operation through automated functionality
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
Optimizes display brightness both indoors and outdoors, preventing insufficient brightness and enhancing viewing quality by dynamically adjusting display settings based on environmental light conditions.
Implementation Method 1
The light sensor senses a light characteristic of the environment light and generates a light sensing signal
Data Source
AI summary
A display device and a display brightness adjustment method thereof are provided. Determine whether the display device is located indoors or outdoors based on a light sensing signal, and when it is determined that the display device is located outdoors, adjust a display brightness of the display device corresponding to an indoor brightness based on a formula, the formula includes a ratio of an outdoor display brightness adjustment range to an indoor display brightness adjustment range.