Bent-Substrate Display Circuit Layout for Narrow Borders
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in the display device industry is to reduce the size of display borders while enhancing the appearance, as smaller electronic devices require more compact display designs.
Innovation Solution
The solution involves a display device with a bent substrate, where the electrical circuit is disposed on the bent portion and overlaps the pixels, minimizing the visible border and allowing for more compact designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electrical circuit is disposed on the same plane as the pixels, then the circuit layout is simple, but the display border size increases
Solution Approach 1:
The patent applies dimensionality change by bending the substrate to fold the electrical circuit onto a different plane that overlaps with the pixel array. This transforms a two-dimensional layout problem into a three-dimensional spatial arrangement, allowing the circuit to occupy vertical space rather than horizontal space, thereby reducing the display border area while maintaining circuit functionality.
Solution Approach 2:
The patent implements nesting by positioning the electrical circuit within the vertical projection area of the pixel array. The circuit is folded and layered beneath or alongside the pixels, similar to nested dolls, where the circuit structure is contained within the overall display footprint without increasing the visible border area.
2Area of stationary object
If the substrate is bent to reduce border size, then the display border area decreases, but the manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by performing the substrate bending process during the manufacturing stage rather than requiring post-manufacturing adjustment. The substrate is pre-formed with the bent configuration before final assembly, integrating the dimensional change into the fabrication process itself and avoiding complex post-processing steps.
3Area of stationary object
If the electrical circuit overlaps the pixels, then the visible display area increases, but the electrical connection complexity increases
Solution Approach 1:
The patent applies merging by integrating the electrical circuit structure with the pixel array structure through the bent substrate configuration. The circuit and pixels share the same substrate and spatial envelope, combining what would traditionally be separate planar components into a unified three-dimensional assembly, thereby reducing overall device complexity despite the overlapping arrangement.
Data Source
AI summary
The invention relates to a display device including a substrate, pixels, a first insulating layer, a second insulating layer, a first conductive layer, a second conductive layer and a trace layer. The pixels is disposed on the substrate and comprising an active layer. The first insulating layer is disposed on the substrate and comprising first recesses. The second insulating layer is disposed on the first insulating layer and comprising a second recesses overlapped with the first recesses. The first conductive layer is disposed on the second insulating layer. The second conductive layer is disposed between the substrate and the first insulating layer, and electrically connected to the first conductive layer through the first recess and the second recess. The trace layer disposed between the second insulating layer and the first insulating layer, and electrically connected to the first conductive layer. The active layer is disposed on the first insulating layer.