Transparent Display Dynamic Transparency Adjustment

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Solution Overview

Problem

Transparent displays face challenges in maintaining image quality due to environmental backgrounds, particularly with intense ambient light and complex background colors or lines, which impair the visibility of displayed images.

Innovation Solution

A transparent display device equipped with a sensing module and processing unit that adjusts the transparency of the display image based on environmental conditions and user input, using techniques such as reducing luminous flux, adjusting gray scale levels, or enhancing brightness to optimize image visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the transparent display maintains high transparency to allow background viewing, then the background becomes visible through the display, but the display image quality deteriorates due to ambient light and background interference

Engineering Contradiction:
ImprovetransparencyVSAvoiddisplay image quality
Core Design Contradiction:
Illumination intensityVSManufacturing precision

Solution Approach 1:

The patent implements dynamic transparency adjustment by controlling the liquid crystal display to change its transparency level based on detected background conditions. The system transitions from a static transparent state to a dynamic state where transparency is continuously adjusted to optimize both background visibility and image quality, resolving the contradiction between these two requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs a feedback mechanism where the system detects background conditions (such as ambient light intensity and background complexity) and uses this information to automatically adjust the transparency level. This closed-loop control allows the display to adapt to varying environmental conditions, maintaining optimal image quality while preserving background visibility when appropriate.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If the transparent display increases image brightness to overcome ambient light interference, then the display image becomes more visible, but the transparency is reduced and background viewing is obstructed

Engineering Contradiction:
Improveimage visibilityVSAvoidtransparency
Core Design Contradiction:
Manufacturing precisionVSIllumination intensity

Solution Approach 1:

The system dynamically adjusts between brightness enhancement and transparency maintenance based on real-time background analysis. When background interference is detected, the system selectively increases brightness in regions where image visibility is compromised while maintaining transparency in regions where background viewing is prioritized, creating a dynamic balance between these conflicting requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies different transparency and brightness characteristics to different regions of the display based on local background conditions. Rather than uniformly adjusting the entire display, the system analyzes background complexity and ambient light distribution to apply localized adjustments, ensuring image visibility where needed while preserving background visibility in other areas.

Inventive Principle:
Principle #3Local quality

3Manufacturing precision

If the transparent display reduces transparency to improve image quality in complex backgrounds, then the display image quality improves, but the ability to view the background is reduced

Engineering Contradiction:
Improvedisplay image qualityVSAvoidbackground viewing capability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The system provides dynamic adaptability by continuously monitoring background conditions and adjusting transparency levels accordingly. This allows the display to adapt to different environmental scenarios, maintaining high image quality when background interference is present while restoring full background viewing capability when conditions permit, thus achieving versatility across varying operating conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the transparency parameter of the liquid crystal display based on detected background characteristics such as ambient light intensity and background complexity. By dynamically modifying this physical parameter in response to environmental conditions, the system optimizes the balance between image quality and background visibility, achieving adaptability to diverse viewing scenarios.

Inventive Principle:
Principle #35Parameter changes

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

Significantly improves display quality by dynamically adjusting transparency to counteract environmental interference, ensuring clear image visibility without obstructing the background view.

Implementation Method 1

a liquid crystal display capable of adjusting transparency of a display image

Methodology Applied
Scientific EffectLiquid crystal effect: Liquid Crystals

Data Source

PatentEP2669883B1Transparent display device and transparency adjustment method thereof
Publication Date: 2016.10.05 ACER INC
  • EP2669883B1 patent drawingFigure 1~2
  • EP2669883B1 patent drawingFigure 3A~3A'
  • EP2669883B1 patent drawingFigure 3B~3B'

AI summary

A transparent display device and a transparency adjustment method thereof are provided. The transparent display device includes a transparent display unit, a sensing module and a processing unit. The sensing module detects at least one of conditions of the environmental background of the transparent display device and a user's input. The processing unit determines if it is necessary to adjust the transparent degree of a transparent image displayed by the transparent display unit or not according to a sensing result detected by the sensing module.