Display Panel Edge Structure for Faster Cutting and Polishing

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Solution Overview

Problem

Existing display panel production processes are inefficient and costly due to the cutting and polishing of cell regions, which affect production yield and overall efficiency.

Innovation Solution

A display panel design with partially curved and rectilinear edges, along with specific surface roughness and alignment of sealing elements, is fabricated using a method that includes forming preliminary-curved regions and polishing to align side surfaces, optimizing the cutting process to reduce fabricating time and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the cell regions are cut and polished using conventional methods, then the display panel can be produced, but the production efficiency is low and cost is high

Engineering Contradiction:
Improveproduction efficiencyVSAvoidfabrication cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent applies preliminary action by pre-forming curved edge regions in the working panel before cutting the cell regions. This preliminary shaping reduces the subsequent polishing workload and time, thereby improving production efficiency while controlling costs. The curved edges are formed during the panel manufacturing process itself, rather than as a separate post-processing step.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the edge regions into distinct curved and rectilinear portions, allowing different processing approaches for different sections. The curved edge regions are pre-formed while the rectilinear regions undergo conventional processing, enabling optimized manufacturing for each segment type and improving overall production efficiency.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the cell regions are cut and polished using conventional methods, then the display panel can be produced, but the production yield is reduced

Engineering Contradiction:
Improveproduction yieldVSAvoidcutting and polishing precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

By pre-forming the curved edge regions before cutting, the patent reduces the complexity of the cutting process and minimizes the risk of defects during cutting and polishing operations. This preliminary preparation improves manufacturing precision and consequently increases production yield.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies different processing qualities to different regions: curved edges receive pre-forming treatment while rectilinear edges undergo conventional processing. This localized approach ensures high precision where needed (curved regions) while maintaining overall manufacturing efficiency, thereby improving production yield.

Inventive Principle:
Principle #3Local quality

3Productivity

If the cell regions are cut and polished using conventional methods, then the display panel can be produced, but the fabricating time is increased

Engineering Contradiction:
Improvefabrication speedVSAvoidfabrication time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent performs the curved edge formation as a preliminary action during panel manufacturing, eliminating the need for time-consuming post-cutting polishing operations on curved regions. This significantly reduces fabrication time while maintaining quality standards.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of following the conventional sequence of cutting then polishing, the patent inverts the approach by pre-forming the curved edges before cutting. This reversal of the traditional process sequence eliminates redundant polishing steps and reduces overall fabrication time.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS12557526B2Display panel and method of fabricating the same
Publication Date: 2026.02.17 SAMSUNG DISPLAY CO LTD
  • US12557526B2 patent drawing
  • US12557526B2 patent drawing
  • US12557526B2 patent drawing

AI summary

A display panel and a method of fabricating the same are provided. The display panel may include first and second regions connected to each other. When viewed in a plan view, the first and second regions may have a curved edge and a rectilinear edge, respectively. When viewed in a sectional view, a side surface of the first region may include a center region having a rectilinear shape and a side surface of the second region may include a center region having a curved shape. In some embodiments, the side surface of the first region has a first roughness, and a side surface of the second region has a second roughness that is smoother than the first roughness.