Transparent OLED Insulated Glass Unit for Train Windows

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Solution Overview

Problem

Conventional displays applied to train windows, such as LCDs, PDPs, QLEDs, and OLEDs, obstruct passengers' views, pose safety risks, are prone to UV-induced driving defects, and can be damaged by vibrations and collisions with the glass.

Innovation Solution

An insulated glass unit with a transparent OLED panel between two tempered glasses, equipped with a UV light shielding film, a spacer for humidity sealing, and an adhesive structure to prevent damage from vibrations, along with a mobility system that includes an OLED controller and communication controller for image data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a conventional display (LCD, PDP, QLED, OLED) is applied to train windows, then image information can be provided to passengers, but the display obstructs the passenger's view and creates safety risks

Engineering Contradiction:

Improveimage information provisionVSAvoidview obstruction and safety risk

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent uses a transparent OLED panel that can change its optical properties. The panel maintains high transparency to allow viewing when not in use, and can switch to displaying images when needed. This dynamic optical state change resolves the contradiction between providing image information and maintaining view clarity for safety

Inventive Principle:

Principle #32Color changes

Solution Approach 2:

The transparent OLED panel acts as an intermediary between the glass and the passenger. It provides image information without blocking the view through its high transparency characteristics, thus mediating between the need for information display and the need for unobstructed viewing for safety

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If a display is applied to the window, then image information can be provided, but the display is exposed to UV for a long time and is likely to cause driving defects

Engineering Contradiction:

Improveimage information provisionVSAvoiddriving defect resistance

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The patent converts the harmful UV radiation into a beneficial protective measure by applying a UV cut filter to the glass. The filter blocks UV rays that would otherwise damage the OLED panel, transforming the UV exposure problem into a protective feature that extends the display's lifespan and reliability

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Loss of information

If a display is applied to the window, then image information can be provided, but the display may collide with the glass inside the window due to train shaking, causing damage

Engineering Contradiction:

Improveimage information provisionVSAvoiddisplay protection from vibration damage

Core Design Contradiction:

Loss of informationVSStrength

Solution Approach 1:

The patent implements beforehand cushioning by creating a spaced-apart structure between the OLED panel and the glass using a frame and adhesive. This pre-established gap and bonding structure prevents direct contact and collision during train vibration, protecting the display from damage before vibration occurs

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

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

Ensures passenger safety by maintaining visibility, reducing UV-induced defects, and preventing damage from vibrations and collisions, while providing reliable image display and humidity sealing.

Implementation Method 1

a transparent OLED module provided between the first tempered glass and the second tempered glass, including a transparent OLED panel for displaying an image

Methodology Applied

Scientific EffectOLED light emission: Electroluminescence

Implementation Method 2

An insulated glass unit with a transparent OLED panel between two tempered glasses, equipped with a UV light shielding film

Methodology Applied

Scientific EffectUV light shielding: Absorption (EM radiation)

Data Source

PatentUS20240074289A1Insulated glass unit with transparent OLED panel and mobility system including the same

Publication Date: 2024.02.29 LG DISPLAY CO LTD

AI summary

An insulated glass unit comprises a first tempered glass and a second tempered glass, which are disposed to face each other, a transparent OLED module provided between the first tempered glass and the second tempered glass, including a transparent OLED panel for displaying an image and a source printed circuit board (PCB) provided with a driving circuit for driving the transparent OLED panel, a spacer provided between an edge of the first tempered glass and an edge of the second tempered glass to form a space between the first tempered glass and the second tempered glass, and a cable having one end electrically connected to the source PCB and the other end exposed to the outside by passing through the spacer.