Segmented Light Transmission Member for Privacy and Power Control

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing light transmission control members lack versatility in light transmittance adjustment and efficiency, leading to high power consumption and limited functionality in various environments.

Innovation Solution

A light transmission control member comprising a first and second substrate with electrodes and a light conversion part containing capsule parts with dispersed light conversion particles, allowing for adjustable light transmittance through voltage application, and pattern electrodes for individual control of light transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple electrodes are used to control light transmittance in different regions, then the adaptability and versatility of the light transmission control member is improved, but the device complexity and power consumption increase

Engineering Contradiction:

Improvelight transmittance adjustment versatilityVSAvoidelectrode structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The first electrode is divided into multiple pattern electrodes (first, second, third pattern electrodes) that can be independently controlled. Each pattern electrode controls light transmittance in specific regions, enabling versatile light transmission patterns while maintaining a relatively simple overall structure with only two main electrodes

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the light transmission control member have different light transmittance properties controlled by different pattern electrodes. This allows local adjustment of light transmission characteristics to meet diverse functional requirements in different areas

Inventive Principle:

Principle #3Local quality

2Illumination intensity

If light conversion particles are dispersed to achieve light transmission, then the light transmittance is improved, but the privacy protection capability is reduced

Engineering Contradiction:

Improvelight transmittanceVSAvoidprivacy exposure

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The light conversion particles can dynamically change their state between dispersed and agglomerated configurations. When dispersed, they allow light transmission for visibility; when agglomerated, they block light for privacy protection. This dynamic adjustment enables the system to adapt to different privacy requirements

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The light transmittance parameter is changed by controlling the dispersion state of light conversion particles. By adjusting whether particles are dispersed or agglomerated, the system transitions between high transmittance (visibility mode) and low transmittance (privacy mode) states

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If a single electrode controls all capsule parts, then the device complexity is reduced, but the power consumption increases due to simultaneous operation of all parts

Engineering Contradiction:

Improveelectrode configuration simplicityVSAvoidpower consumption

Core Design Contradiction:

Device complexityVSUse of energy by moving object

Solution Approach 1:

The first electrode is segmented into multiple independently controllable pattern electrodes. This allows selective activation of only the necessary regions, reducing overall power consumption while maintaining simple electrode structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of activating all pattern electrodes simultaneously, only the specific regions requiring light transmittance control are activated. This partial action approach reduces power consumption while maintaining device functionality

Inventive Principle:

Principle #16Partial or excessive action

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

The solution enables convenient, power-efficient operation with adjustable light transmittance, enhancing usability in diverse environments and enabling display of symbols or images, while reducing power consumption and improving visibility in privacy modes.

Implementation Method 1

The light conversion part is switched into a light transmitting part and a light blocking part by dispersion and agglomeration of the light conversion particles

Methodology Applied

Scientific EffectDispersion and agglomeration of light conversion particles: Dispersion (of waves)

Data Source

PatentUS20250390000A1Light transmission control member and display device comprising same

Publication Date: 2025.12.25 LG INNOTEK CO LTD

AI summary

A light transmission control member according to an embodiment includes a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; a light conversion part disposed between the first electrode and the second electrode, wherein the light conversion part includes a receiving part and a capsule part disposed inside the receiving part, and a plurality of capsule parts are disposed on the first electrode.