Display Panel Vernier Mark for Conductive Adhesive Alignment
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Solution Overview
Problem
The reliability of electronic component connections in manufacturing processes is compromised due to misalignment caused by vibration and process errors, leading to deteriorated connection reliability between display panels and circuit boards.
Innovation Solution
Incorporating a vernier mark on the display panel, spaced apart from pads and signal lines, to facilitate precise alignment of a conductive adhesive member with the circuit board, allowing for visual verification of alignment without additional measuring tools, ensuring accurate positioning and improved connection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alignment is performed without a vernier mark, then the manufacturing process is simpler, but misalignment occurs due to vibration and process errors
Solution Approach 1:
The vernier mark serves as an intermediary alignment reference between the display panel and circuit board. It provides a visual mediator that enables precise positioning of the conductive adhesive member without requiring complex measurement tools or procedures, thus improving connection reliability while adding minimal structural complexity
Solution Approach 2:
The vernier mark is pre-formed on the display panel before the bonding process. This preliminary alignment reference allows operators to visually verify and adjust the position of the conductive adhesive member before final bonding, preventing misalignment caused by vibration and process errors
2Manufacturing precision
If a vernier mark is added to the display panel, then alignment precision is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The vernier mark acts as a simple visual intermediary that provides alignment reference without requiring complex measurement instruments. It enables precise alignment through direct visual observation, achieving high manufacturing precision with minimal added structural complexity
Solution Approach 2:
The vernier mark creates a visual copy or reference of the alignment position that can be directly observed and used for positioning. This visual copying mechanism allows operators to achieve precise alignment without complex measurement tools, maintaining simplicity while improving precision
Data Source
AI summary
An electronic apparatus includes a display panel including a base substrate including an active area and a peripheral area adjacent to the active area, pixels on the active area, pads on the peripheral area and arranged in a first direction, signal lines connecting the pixels to the pads, and a vernier mark on the peripheral area and spaced apart from the pads and the signal lines, a circuit board on the display panel and including a base film, and leads on the base film and overlapping with the pads in a plan view, and a conductive adhesive member extending in the first direction and between the display panel and the circuit board to connect the pads to the leads. The conductive adhesive member overlaps with the vernier mark when viewed in a second direction intersecting the first direction.