Stretchable Display Substrate Layout to Suppress Excessive Stretching
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Solution Overview
Problem
Existing display devices face issues with excessive stretching, leading to abnormal operation of light-emitting elements and potential structural damage, which can compromise their functionality and reliability.
Innovation Solution
A display device design featuring a lower and upper stretchable substrate with conductive patterns and pixels, including a pattern layer with plate and line patterns to detect and prevent excessive stretching, ensuring the device operates within its normal form.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device is made stretchable to enable shape changes and flexibility, then adaptability and ease of operation are improved, but reliability deteriorates due to excessive stretching causing abnormal light-emitting element operation and potential structural damage
Solution Approach 1:
The patent applies preliminary action by pre-defining safe stretching boundaries through the stretchable substrate design. The substrate is engineered with specific mechanical properties and structural features (such as hinge regions and rigid support areas) that prevent excessive stretching before it can cause damage to light-emitting elements, thereby ensuring reliability while maintaining adaptability
2Ease of operation
If the display device allows repeated stretching operations to enhance user experience, then ease of operation is improved, but reliability worsens due to potential structural damage from excessive stretching
Solution Approach 1:
The patent employs flexible shells and thin films through the stretchable substrate design, which incorporates flexible material layers that can withstand repeated stretching operations. The substrate structure includes flexible regions that accommodate deformation while maintaining structural integrity, allowing users to repeatedly stretch the device without causing damage
Data Source
AI summary
According to an aspect of the present disclosure a display device is described. The display device includes: a lower substrate which is stretchable and divided into a first area, a second area, and a third area. The display device includes a plurality of conductive patterns disposed in the first area of the lower substrate. The display device includes a plurality of pixels disposed in the second area of the lower substrate. The display device includes a plurality of connection lines disposed in the third area of the lower substrate and respectively connected to the plurality of pixels, in which the plurality of conductive patterns is disposed on the same layer and includes first conductive pattern and second conductive pattern spaced apart from each other, thereby suppressing excessive stretching of the display device.