Display Panel Connection Line Marking for Faster Inspection

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Solution Overview

Problem

Current display apparatuses face challenges in efficiently inspecting and identifying connection lines on display panels, leading to slower inspection speeds due to the lack of clear marking systems for numbering and differentiation between connection groups.

Innovation Solution

The display apparatus incorporates a substrate with distinct marking systems, including main marks and sub-marks arranged in specific patterns and positions, to facilitate the numbering and identification of connection lines, enhancing visibility and recognition during inspections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If no marking system is provided on connection lines, then the device structure remains simple, but the inspection speed decreases due to difficulty in identifying and numbering connection lines

Engineering Contradiction:
Improveinspection speedVSAvoidmarking system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Marks are pre-formed on the connection lines during the manufacturing process before inspection. The marking system includes main marks at specific positions and sub-marks along the connection lines, which are created in advance to facilitate subsequent inspection and numbering operations, eliminating the need for time-consuming manual marking during inspection

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Marks serve as intermediary elements that mediate between the connection lines and the inspection process. These marks (both main marks and sub-marks) act as visual mediators that enable inspectors to easily identify, locate, and number connection lines without directly examining the complex connection line structures themselves

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If connection lines are densely arranged to increase data line capacity, then the device functionality improves, but the difficulty of detecting and measuring connection lines increases

Engineering Contradiction:
Improvenumber of connection linesVSAvoidconnection line identification difficulty
Core Design Contradiction:
Quantity of substanceVSDifficulty of detecting and measuring

Solution Approach 1:

The marking system is segmented into two levels: main marks positioned at key locations (such as at the beginning or turning points of connection lines) and sub-marks positioned at regular intervals along the connection lines. This segmentation allows inspectors to first locate main marks to identify connection line groups, then use sub-marks to number individual connection lines within each group, making the inspection of densely arranged lines feasible

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different marking densities and types are applied to different locations: main marks are placed at critical positions where connection lines originate or change direction, while sub-marks are placed at regular intervals along the lines. This local differentiation optimizes identification efficiency for densely arranged connection lines by providing hierarchical visual cues rather than uniform marking throughout

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20240237440A1Display apparatus
Publication Date: 2024.07.11 SAMSUNG DISPLAY CO LTD
  • US20240237440A1 patent drawing
  • US20240237440A1 patent drawing
  • US20240237440A1 patent drawing

AI summary

A display apparatus includes: a substrate including a display area and a peripheral area; a pad portion on one side of the peripheral area; a first connection group including a plurality of first connection lines extending from the pad portion to the display area; a second connection group including a plurality of second connection lines extending from the pad portion to the display area, wherein the second connection group is adjacent the first connection group; a first main mark on a first side of the first connection group; a second main mark on a second side of the first connection group and between the first connection group and the second connection group; a plurality of first sub-marks between the plurality of first connection lines of the first connection group; and a plurality of second sub-marks between the plurality of second connection lines of the second connection group.