Display Base Layer Filling Part for Sensor Module Hole

Solution Overview

Problem

The structural integrity and reliability of multimedia electronic devices are compromised due to holes for sensors, leading to waviness and potential damage from moisture or oxygen ingress, which affects the display quality and reliability.

Innovation Solution

An electronic device design featuring a display device with a base layer, circuit element layer, display element layer, encapsulation layer, and a filling part that overlaps a first area with reduced light transmittance, along with a sensor positioned below the base layer, where a module hole exposes the base layer and is filled with a polymer resin to prevent moisture and oxygen ingress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hole is created in the display device for sensor placement, then sensor functionality is enabled, but structural integrity and reliability are compromised

Engineering Contradiction:

Improvesensor functionalityVSAvoidstructural integrity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

A filling part is introduced as an intermediary component to occupy the module hole and prevent moisture or oxygen from reaching the sensor or internal components. This filling part acts as a mediator that maintains the protective function of the display device while allowing the sensor to function through the hole area.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The base layer is designed with different light transmittance properties in different areas: a first area with high light transmittance for display functionality and a second area with reduced light transmittance surrounding the first area. This local differentiation allows optimal light transmission where needed while providing structural support and protection in other areas.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If a hole is created in the display device for sensor placement, then sensor functionality is enabled, but display quality is degraded due to waviness

Engineering Contradiction:

Improvesensor functionalityVSAvoiddisplay quality

Core Design Contradiction:

Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The base layer is designed with different light transmittance properties in different areas: a first area with high light transmittance for display functionality and a second area with reduced light transmittance surrounding the first area. This local differentiation allows optimal light transmission where needed while providing structural support in other areas.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The filling part serves as an intermediary that fills the module hole, preventing light reflection and waviness issues while allowing the sensor to operate. This mediator component eliminates the optical disturbances that would otherwise degrade display quality.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If a hole is created in the display device for sensor placement, then sensor functionality is enabled, but components become damaged from moisture or oxygen ingress

Engineering Contradiction:

Improvesensor functionalityVSAvoidmoisture and oxygen ingress

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

A filling part is introduced as an intermediary component to occupy the module hole and prevent moisture or oxygen from reaching the sensor or internal components. This filling part acts as a mediator that maintains the protective function of the display device while allowing the sensor to function through the hole area.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The module hole, which initially creates a vulnerability for moisture and oxygen ingress, is converted into a protected structure by filling it with a protective material. The harmful opening is transformed into a beneficial sealed structure that prevents harmful substance entry while maintaining sensor functionality.

Inventive Principle:

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

Data Source

PatentUS20240237489A9Electronic device and method for manufacturing the same

Publication Date: 2024.07.11 SAMSUNG DISPLAY CO LTD

AI summary

An electronic device includes a display device and an electronic device. The display device includes a base layer, a circuit element layer, a display element layer, an encapsulation layer, a cover inorganic layer, a cover organic layer, an anti-reflection layer, and a filling part configured to overlap the first area. The electronic device is disposed below the base layer and configured to overlap the first area. A module hole is defined in the display module through which the circuit element layer, the display element layer, the encapsulation layer, the cover inorganic layer, and the cover organic layer overlapping the first area passes through to expose the base layer, and the filling part is disposed inside the module hole and is in contact with a portion of the base layer exposed by the module hole.