Bent Display Panel With Integrated PCB For Space Reduction

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Solution Overview

Problem

Existing display devices face challenges in design complexity and manufacturing efficiency due to the need for precise alignment and connection of electronic components on a printed circuit board with a display panel.

Innovation Solution

A display device design that includes a display panel with a first and second portion, where the second portion is bent to overlap the first portion, and a printed circuit board with a bending unit and wiring unit that are adhered to the display panel, allowing for improved alignment and reduced space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electronic components are connected to a printed circuit board for power and signal transmission, then the display device can receive power and transmit signals, but the design complexity increases and manufacturing efficiency decreases due to precise alignment requirements

Engineering Contradiction:
Improvesignal transmissionVSAvoiddesign complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the display panel and printed circuit board into a single integrated structure where the PCB is formed directly on the rear surface of the display panel. This integration eliminates the need for separate alignment and connection processes between distinct components, thereby reducing design complexity while maintaining reliable signal transmission and power delivery.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The printed circuit board serves multiple functions simultaneously: it provides electrical connections for signal transmission, power delivery, and structural support for the display panel. This multi-functionality reduces the need for additional separate components, simplifying the overall design while ensuring reliable operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a printed circuit board is used to connect electronic components, then power and signals can be transmitted, but additional space is required and the device profile becomes thicker

Engineering Contradiction:
Improvepower transmissionVSAvoidspace requirement
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The printed circuit board is merged with the display panel by forming it directly on the rear surface, eliminating the need for a separate PCB layer. This integration significantly reduces the overall space requirement and enables a thinner device profile while maintaining reliable power transmission to electronic components.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If electronic components are disposed on the display panel, then connections can be made, but electrical interference may occur and space is consumed

Engineering Contradiction:
Improveconnection easeVSAvoidelectrical interference
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by creating a ground voltage potential layer in specific regions between electronic components and signal lines. This localized ground layer acts as an electromagnetic shield, reducing electrical interference in critical areas while maintaining ease of manufacturing through a systematic layer structure that can be implemented using standard thin-film deposition techniques.

Inventive Principle:
Principle #3Local quality

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

This design enhances the ease of designing and manufacturing display devices by reducing the need for additional space for electronic components and minimizing electrical interference, while also allowing for a thinner device profile.

Implementation Method 1

the wiring unit may be adhered to the display panel through adhesive members

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS20250168973A1Display device and method of manufacturing the same
Publication Date: 2025.05.22 SAMSUNG DISPLAY CO LTD
  • US20250168973A1 patent drawing
  • US20250168973A1 patent drawing
  • US20250168973A1 patent drawing

AI summary

A display device includes a display panel including a first portion and a second portion bent in one direction from the first portion and disposed to overlap the first portion, a driving integrated circuit (IC) chip disposed on the second portion, and a printed circuit board including a bending unit bent in a direction opposite to the one direction and a wiring unit extending from the bending unit and disposed to overlap the first portion and the second portion.