Display Panel Through-Hole Rough Pattern Moisture Barrier

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Solution Overview

Problem

Display devices face challenges in integrating optical electronic devices, such as cameras and sensors, without compromising the display area due to the need for light reception, which often results in widened bezels or notches, reducing the image display area and potentially allowing moisture to penetrate through the display panel.

Innovation Solution

A display device design featuring a through-hole surrounded by a rough pattern with a metal pattern in its valley, where the optical electronic device partially overlaps with the through-hole, effectively preventing moisture ingress and allowing for a more compact design without the need for notches in the display panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the camera and detection sensor are exposed on the front surface of the display device, then light reception is easy, but the bezel is widened or a notch is formed in the display area, reducing the display area

Engineering Contradiction:
Improvelight receptionVSAvoiddisplay area
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent merges the camera and detection sensor into a single integrated optical electronic device, and combines the through-hole structure with the rough pattern and metal pattern to create a multi-functional integrated solution that enables light reception while preserving display area

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from a two-dimensional surface mounting approach to a three-dimensional integrated structure by forming a through-hole that extends through the display panel and positioning the optical electronic device to overlap with it, utilizing vertical space rather than horizontal space to maintain display area

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If the bezel is broadened or a notch is formed in the front surface of the display panel, then the optical electronic device can be installed, but the display area for displaying images is reduced

Engineering Contradiction:
Improveoptical electronic device installationVSAvoiddisplay area
Core Design Contradiction:
Ease of manufactureVSArea of stationary object

Solution Approach 1:

The patent segments the display panel into different functional zones by creating a through-hole in a specific region, allowing the optical electronic device to be positioned in a dedicated area while maintaining the continuity and integrity of the surrounding display area

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a nested structure where the optical electronic device is positioned within the projection area of the display panel by creating a through-hole, and further nesting the metal pattern within the rough pattern valley, creating a compact integrated arrangement that maximizes space utilization

Inventive Principle:
Principle #7Nested doll (Nesting)

3Area of stationary object

If a through-hole is formed in the display panel for optical electronic device installation, then display area is maintained, but moisture may penetrate into the display area through the through-hole

Engineering Contradiction:
Improvedisplay areaVSAvoidmoisture protection
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The patent applies local quality by creating a rough pattern with varying depths around the through-hole, where the outer side rough pattern has deeper valleys than the inner side rough pattern, providing enhanced moisture protection at the critical interface with the optical electronic device while maintaining display area

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent introduces the metal pattern as an intermediary element positioned in the valley of the rough pattern, which acts as a barrier to moisture penetration while allowing light transmission, thus protecting the display area from moisture without compromising the through-hole structure

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20230165070A1Display device
Publication Date: 2023.05.25 LG DISPLAY CO LTD
  • US20230165070A1 patent drawing
  • US20230165070A1 patent drawing
  • US20230165070A1 patent drawing

AI summary

A display device includes a display panel having a through-hole and a rough pattern around the through-hole, an optical electronic device positioned to at least partially overlap with the through-hole, and a metal pattern positioned in a valley of the rough pattern. Thus, it is possible to provide a robust display device against moisture that may be introduced through the through-hole.