Display Substrate Contacts That Tolerate Assembly Misalignment
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Solution Overview
Problem
Display abnormality occurs due to significant assembly deviations between luminescent and driving substrates in frameless displays, leading to ineffective connection of luminescent devices and driving circuits.
Innovation Solution
A display device design featuring luminescent and driving substrates with conductive parts having line-shaped recesses and dot-shaped protrusions, allowing for adjustable alignment and stable electrical connection despite substrate deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the luminescent substrate and driving substrate are assembled together, then the display device can function, but assembly deviation causes misalignment between conductive parts leading to display abnormality
Solution Approach 1:
The conductive part is designed with a movable connection structure where the first conductive part on the luminescent substrate can move relative to the second conductive part on the driving substrate. This dynamic adjustment mechanism allows the system to compensate for assembly deviations and maintain reliable electrical connection despite manufacturing tolerances.
Solution Approach 2:
The invention changes the geometric parameters of the conductive parts by introducing a line-shaped recess in one conductive part and a dot-shaped protrusion in the other. This parameter change transforms the rigid point-to-point connection into a more tolerant geometric relationship that can accommodate positional variations while maintaining connection reliability.
2Adaptability or versatility
If the substrate is made flexible to accommodate deformation, then assembly deviation can be compensated, but manufacturing complexity increases
Solution Approach 1:
The luminescent substrate is designed as a flexible substrate that can undergo stretching and shrinking deformations. This flexibility allows the substrate to adapt to assembly deviations and maintain the alignment between conductive parts, compensating for manufacturing tolerances without requiring complex adjustment mechanisms.
Data Source
AI summary
A display device is disclosed and includes: a luminescent substrate, wherein the luminescent substrate includes a substrate, a first conductive part, and a luminescent device, and the first conductive part is disposed on a second surface of the substrate; and a driving substrate, wherein a surface of the driving substrate close to the luminescent substrate is provided with a second conductive part connected to the first conductive part. One of the first conductive part or the second conductive part includes a line-shaped recess. The other one of the first conductive part or the second conductive part includes a dot-shaped protrusion. The dot-shaped protrusion is defined in the line-shaped recess.