Display Module Edge Shock Protection via Pixel Circuit Relocation
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Solution Overview
Problem
Existing display modules with light emitting diodes (LEDs) are susceptible to damage from physical shocks during manufacturing, particularly at the edges of the substrate, which can lead to image noise and disconnection of data wirings.
Innovation Solution
The display module incorporates a substrate with pixel circuits and light emitting elements arranged such that the pixel circuits are further from the edge of the substrate than the light emitting elements, and the data wirings are also positioned further from the edge to minimize damage from physical shocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pixel circuits and data wirings are arranged closer to the edge of the substrate, then the manufacturing area is increased and productivity is improved, but the reliability deteriorates due to susceptibility to physical shock damage
Solution Approach 1:
The patent introduces a spatial dimension consideration by arranging pixel circuits and data wirings at different distances from the edge of the substrate. Specifically, pixel circuits are positioned in a first region closer to the edge, while data wirings are positioned in a second region farther from the edge, creating a layered spatial distribution that protects critical wiring from edge shocks while maintaining manufacturing efficiency
2Reliability
If pixel circuits are positioned farther from the edge of the substrate, then the reliability is improved by reducing damage from physical shocks, but the manufacturing area is reduced and productivity decreases
Solution Approach 1:
The patent applies local quality by creating different spatial zones on the substrate with different functional characteristics. The first region near the edge accommodates pixel circuits that can tolerate some shock, while the second region farther from the edge protects data wirings that are more sensitive to shock damage. This localized spatial differentiation optimizes both reliability and manufacturing area utilization
Data Source
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AI summary
A display module includes a substrate, a first pixel circuit, a first light emitting element, a second pixel circuit and a second light emitting element. The first pixel circuit is configured to control the first light emitting element. The first pixel circuit is located inwardly from an edge of the substrate with respect to the first light emitting element.