Ambient Light Adaptive Display Intensity Control

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Solution Overview

Problem

Existing display technologies face challenges in automatically adjusting display intensity and hue to compensate for dynamic ambient lighting conditions, requiring manual user intervention and failing to account for individual user preferences and optimal intensity settings.

Innovation Solution

The system includes a calibration step to correlate display intensity settings with ambient light conditions, using a controller with ambient light sensors to automatically adjust display intensity and hue based on user-specific and hue-specific correlations, allowing for continuous or discrete control of backlight intensity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual user intensity control is used, then user preferences can be accommodated, but manual intervention is required and cannot automatically adapt to ambient light changes

Engineering Contradiction:
Improveautomatic adaptation to ambient lightVSAvoidmanual intervention required
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The display system automatically adjusts its own intensity based on ambient light sensor readings without requiring user intervention. The controller monitors ambient light conditions and autonomously modifies display parameters to maintain optimal viewing conditions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses ambient light sensors to continuously monitor environmental lighting conditions and feeds this information back to the controller, which then adjusts display intensity accordingly. This closed-loop feedback mechanism enables automatic adaptation to changing ambient conditions.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If fixed display intensity is used, then device complexity is reduced, but display perception deteriorates under varying ambient lighting conditions

Engineering Contradiction:
Improvedisplay intensity adaptationVSAvoidintensity control system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system dynamically changes display intensity parameters based on ambient light conditions. The controller modifies backlight intensity levels, contrast ratios, and other display parameters in response to sensor readings, allowing the display to adapt to different lighting environments.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The display system transitions from a static, fixed intensity configuration to a dynamic system that continuously adjusts intensity levels based on real-time ambient light measurements. This enables the display to maintain optimal performance across varying environmental conditions.

Inventive Principle:
Principle #15Dynamics

3Extent of automation

If ambient light sensor is added, then automatic intensity adjustment is enabled, but device complexity increases

Engineering Contradiction:
Improveautomatic intensity adjustmentVSAvoidsensor and control system
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The ambient light sensor serves multiple functions: it detects ambient light intensity, determines optimal display settings, and triggers automatic adjustments. This multi-functional approach reduces the need for separate dedicated components for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The controller acts as an intermediary between the ambient light sensor and the display output. It processes sensor data, applies adjustment algorithms, and translates these into appropriate display parameter changes, simplifying the overall system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 enables automatic and optimal display intensity and hue adjustments, improving user experience by adapting to varying ambient light conditions without manual intervention and accommodating individual preferences.

Implementation Method 1

one or more ambient light sensors (332) measure the intensity of ambient light

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS8169450B2System and method for ambient-light adaptive intensity control for an electronic display
Publication Date: 2012.05.01 POLARIS POWERLED TECHNOLOGIES LLC
  • US8169450B2 patent drawing
  • US8169450B2 patent drawing
  • US8169450B2 patent drawing

AI summary

The techniques of the present invention relate to automatically controlling display intensity. The present invention includes a calibration step in which the display intensity settings are correlated to the ambient light intensity conditions. The present invention also includes an automatic adjustment step in which the ambient light intensity is measured and the display intensity is automatically adjusted according to a correlation defined in the calibration step.