Silicide Bridge Pixel Structure for Impact-Resistant Displays

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Solution Overview

Problem

Display apparatuses, such as organic light-emitting display apparatuses, face defects and difficulty in displaying high-resolution images when subjected to external impacts due to the vulnerability of thin-film transistors.

Innovation Solution

A display apparatus design featuring a substrate with adjacent pixel areas connected by a silicide bridge, integrated semiconductor layers, and insulating layers with specific contact holes and grooves, along with a conductive layer and shield layer, to enhance structural integrity and prevent defect propagation from external impacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional display apparatus structure is used, then manufacturing is simpler, but defect rate increases when subjected to external impacts

Engineering Contradiction:
Improvedefect rate under external impactVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The semiconductor layer is divided into multiple independent semiconductor regions corresponding to different pixel areas. These regions are separated by insulating layers with grooves or openings, creating a segmented structure that prevents crack propagation across the entire display when external impact occurs, thereby reducing defect rate while maintaining manageable structural complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bridge structure connects semiconductor regions by passing through grooves or openings in insulating layers, creating a nested configuration where the bridge is embedded within the insulating layer structure. This nested design provides mechanical support and electrical connection while the insulating layers protect the bridge, improving reliability without excessive complexity

Inventive Principle:
Principle #7Nested doll (Nesting)

2Measurement precision

If high-resolution display is achieved, then image quality improves, but susceptibility to external impact increases

Engineering Contradiction:
Improveimage resolutionVSAvoidimpact susceptibility
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The display is divided into multiple pixel areas with independent semiconductor regions. The insulating layers with grooves or openings create separation that prevents impact-induced cracks from propagating across the high-resolution display structure, allowing high resolution to be maintained while reducing impact susceptibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Insulating layers are positioned between semiconductor regions to provide protective cushioning before impact damage can occur. The grooves or openings in these insulating layers allow the bridge to pass through while the insulating material itself acts as a cushion that absorbs and distributes impact forces, preventing catastrophic failure of the high-resolution display structure

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS20230269972A1Display apparatus and method of manufacturing the same
Publication Date: 2023.08.24 SAMSUNG DISPLAY CO LTD
  • US20230269972A1 patent drawing
  • US20230269972A1 patent drawing
  • US20230269972A1 patent drawing

AI summary

A display apparatus includes a substrate including a first pixel area and a second pixel area adjacent to each other, a semiconductor layer including a first semiconductor layer in the first pixel area, a second semiconductor layer in the second pixel area, and a bridge connecting the first semiconductor layer to the second semiconductor layer, and a first insulating layer on the semiconductor layer and having a first groove or a first opening corresponding to a boundary between the first pixel area and the second pixel area. The bridge includes a silicide material.