Content-Based Localized Brightness Control for Displays

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Solution Overview

Problem

Current display technologies, such as LCDs, lack the ability to provide localized brightness control, making it difficult to enhance readability for displays with varying regions of light and dark areas, as they can only adjust the brightness of the entire viewable area uniformly.

Innovation Solution

Implementing a system with a display panel that supports independently controllable brightness levels for pixel groups, utilizing an ambient light sensor and processor to adjust overall and local brightness levels based on content and ambient conditions, allowing for content-based selectable area brightness control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If uniform brightness control is applied across the entire display area, then the display structure remains simple and energy consumption is reduced, but readability is compromised for displays with varying regions of light and dark areas

Engineering Contradiction:
Improvebrightness controlVSAvoidreadability
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The display area is divided into multiple pixel groups that can be independently controlled for brightness. The processor identifies specific pixel groups based on content being displayed and sets different brightness levels for different groups, enabling localized brightness adjustment to improve readability of specific regions while maintaining overall display functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the display are assigned different brightness levels based on their specific content requirements. The system adjusts brightness locally for specific pixel groups rather than uniformly across the entire display, allowing light and dark areas to be optimized independently for better overall readability.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If localized brightness control is implemented for different pixel groups, then readability of specific regions is improved, but device complexity increases

Engineering Contradiction:
ImprovereadabilityVSAvoidbrightness control system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The processor automatically identifies specific pixel groups based on the content being displayed and autonomously adjusts their brightness levels without requiring manual user input for each region. The system self-manages the complexity of localized brightness control by making intelligent decisions about which areas need adjusted brightness based on content analysis.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The processor performs multiple functions: it processes display content, identifies regions requiring brightness adjustment, and controls pixel group brightness levels. This multi-functionality consolidates what would otherwise require separate dedicated components, managing system complexity while enabling sophisticated localized brightness control.

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

3Use of energy by moving object

If the entire display area is adjusted uniformly, then energy consumption is reduced, but visibility of contrasting regions is compromised

Engineering Contradiction:
Improveenergy consumptionVSAvoidvisibility
Core Design Contradiction:
Use of energy by moving objectVSIllumination intensity

Solution Approach 1:

Instead of adjusting the entire display area uniformly, the system applies brightness adjustment only to specific pixel groups that require it based on content analysis. This partial action approach improves visibility of contrasting regions where needed while avoiding unnecessary energy consumption in areas that do not require adjustment, achieving a balance between energy efficiency and visibility.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS9830863B1Content-based selectable area brightness control for displays
Publication Date: 2017.11.28 ROCKWELL COLLINS INC
  • US9830863B1 patent drawing
  • US9830863B1 patent drawing
  • US9830863B1 patent drawing

AI summary

Systems and methods for providing content-based localized brightness control are disclosed. A system may include a display panel configured to support independently controllable brightness levels for a plurality of pixel groups within the display panel. The system may also include a processor in communication with the display panel. The processor may be configured to identify a specific pixel group of the display panel based on content being displayed in the specific pixel group, and the processor may be further configured to set a brightness level of the specific pixel group differently from another pixel group of the display panel.