Pixel Set Conductive Film Layout for Reliable Display Connections

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Solution Overview

Problem

Existing display technologies face challenges in providing a highly convenient, useful, and reliable display apparatus due to inefficiencies in signal and power supply to pixel circuits and light-emitting devices, leading to potential connection defects and increased area requirements.

Innovation Solution

The display apparatus incorporates multiple pixel sets, conductive films, and conductive materials to facilitate efficient signal and power supply to pixel circuits and light-emitting devices, reducing connection defects and area requirements through overlapping pads and conductive connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple pixel sets with separate conductive films are used to supply signals to pixel circuits, then signal supply efficiency is improved, but device complexity increases

Engineering Contradiction:

Improvesignal supply efficiencyVSAvoiddevice complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple conductive films (first conductive film, second conductive film, third conductive film) into a unified signal distribution system. These conductive films are integrated with pixel sets and pixel circuits to form a coordinated network for signal and power supply, achieving efficient signal distribution across multiple pixel sets while maintaining systematic organization and avoiding excessive complexity through structured integration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The conductive films serve multiple functions: the first conductive film supplies signals to pixel circuits, the second conductive film supplies power to pads, and the third conductive film provides additional signal pathways. This multi-functionality allows a single conductive film system to handle various electrical requirements simultaneously, improving signal supply efficiency without proportionally increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If pads are overlapped with conductive materials to improve electrical connections, then connection reliability is improved, but manufacturing precision requirements increase

Engineering Contradiction:

Improveconnection reliabilityVSAvoidmanufacturing precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The pad structure is designed in advance with overlapping regions that pre-position conductive materials. The first pad and second pad are configured to overlap with conductive materials before final assembly, ensuring that electrical connections are established through predetermined overlapping zones. This preliminary design of overlapping pads reduces the need for high-precision alignment during manufacturing while maintaining connection reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Conductive materials serve as intermediary elements between the first pad and second pad. These conductive materials are sandwiched between overlapping pads to establish electrical connections, acting as a mediator that tolerates certain alignment variations. The conductive material's inherent conductivity and flexibility compensate for manufacturing tolerances, maintaining connection reliability without requiring extremely precise pad alignment.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If conductive materials are sandwiched between pads to reduce connection defects, then electrical connection quality is improved, but area requirements increase

Engineering Contradiction:

Improveelectrical connection qualityVSAvoidarea requirements

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The conductive material is nested between the first pad and second pad in a sandwich structure. This nested arrangement allows the conductive material to be integrated within the existing pad architecture rather than adding separate external connection elements. The conductive material occupies the space between overlapping pad regions, reducing the need for additional area while maintaining electrical connection quality and reducing connection defects.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS12437703B2Display apparatus having pixel sets including light-emitting devices

Publication Date: 2025.10.07 SEMICON ENERGY LAB CO LTD

AI summary

A novel display apparatus that is highly convenient, useful, or reliable is provided. The display apparatus includes a first pixel set, a second pixel set, a first conductive film, and a second conductive film; the first pixel set includes a first light-emitting device set and a first pixel circuit set; the first pixel circuit set includes a first group of pixel circuits; and the first group of pixel circuits include a first pixel circuit. The second pixel set includes a second light-emitting device set and a second pixel circuit set; the second light-emitting device set is electrically connected to the second pixel circuit set; the second pixel circuit set includes a second group of pixel circuits; and the second group of pixel circuits include a second pixel circuit. The first conductive film is electrically connected to the first group of pixel circuits and the second group of pixel circuits, and the second conductive film is electrically connected to the first pixel circuit and the second pixel circuit.