Liquid Crystal Display Hole Protection Against Light Leakage

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Solution Overview

Problem

Existing liquid crystal display devices with holes in the screen suffer from reduced transparency and light leakage due to the structure of layers of glass or sheet, leading to mechanical breakage and foreign matter entry, which affects the visibility and reliability of the display.

Innovation Solution

A liquid crystal display device with a hole in both the panel and the backlight, featuring a protecting member around the inner periphery of the liquid crystal display panel hole to prevent cracks and foreign matter entry, and a light-shielding member around the backlight hole to prevent light leakage, using metal tape with adhesive for protection and electrical stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If holes are formed in the liquid crystal display panel and backlight to provide another display, then the visibility of the back is improved, but the transparency of the portion decreases and light reflection or leakage occurs

Engineering Contradiction:

Improvevisibility of the backVSAvoidtransparency of the portion

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

A protecting member is introduced as an intermediary element around the hole periphery to prevent direct contact between the hole edges and external factors. This mediator prevents light reflection and leakage while maintaining the hole's transparency function, thus resolving the contradiction between visibility improvement and transparency maintenance.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If holes are formed in the liquid crystal display panel to provide another display, then the adaptability is improved, but mechanical breakage occurs around the hole

Engineering Contradiction:

Improveability to provide another displayVSAvoidmechanical strength around the hole

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The protecting member is installed beforehand around the hole periphery to cushion and absorb mechanical stresses before they can cause breakage. This preventive measure strengthens the hole region without compromising the adaptability to provide additional displays.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Adaptability or versatility

If holes are formed in the backlight to provide another display, then the adaptability is improved, but foreign matter enters the backlight

Engineering Contradiction:

Improveability to provide another displayVSAvoidforeign matter entry into the backlight

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The protecting member serves as a barrier mediator around the backlight hole, preventing foreign matter from directly entering the backlight while allowing the hole to maintain its function for providing additional displays. This resolves the contradiction between adaptability and protection from harmful factors.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS7876391B2Liquid crystal display device

Publication Date: 2011.01.25 MAGNOLIA PURPLE CORP

AI summary

A liquid crystal display device includes a liquid crystal display panel and a backlight. The liquid crystal display device has a hole in the screen. The hole of the liquid crystal display panel has a first protecting member; and the hole of the backlight has a second protecting member. The liquid crystal display panel hole and the backlight hole form a common hole. The common hole has a third protecting member. With this structure, the viewer can see another display in the liquid crystal display screen without feeling a noticeable difference.