Display Device Routing Wires and Internal Circuits
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Solution Overview
Problem
Existing display devices face limitations in maximizing the display area due to the size of the non-pixel area, which includes driving circuits and sealing materials, leading to reduced screen size and increased dead space.
Innovation Solution
The display device design optimizes the arrangement of routing wires and internal circuits within the non-pixel area by superimposing them on the outskirts of the internal circuit portions and the bonding area of the encapsulating layer, allowing for efficient space utilization and reduced dead space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the non-pixel area includes driving circuits and sealing materials, then the device functionality is ensured, but the display area is restricted and dead space increases
Solution Approach 1:
The patent positions the driving power supply line in the third dimension (between the sealing member and substrate), transforming a two-dimensional layout problem into a three-dimensional solution. This allows the power supply line to occupy space that would otherwise be wasted, effectively increasing the display area without adding to the device's footprint.
Solution Approach 2:
The driving power supply line is nested within the non-pixel area, specifically positioned between the sealing member and substrate. This nesting approach allows the power supply line to utilize the existing structural space rather than requiring additional area, thereby maximizing the display area while maintaining device functionality.
2Area of moving object
If the non-pixel area is reduced to increase display area, then screen size increases, but electrical stability may be compromised
Solution Approach 1:
By moving the driving power supply line to the space between the sealing member and substrate, the patent reduces the horizontal space required for electrical components. This dimensional repositioning maintains electrical stability through proper routing while minimizing the non-pixel area's impact on the overall display area.
Data Source
Figure 1
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AI summary
A display device includes a substrate having a pixel area with at least a first rounded corner portion and first to third non-pixel areas arranged sequentially along an outer circumference of the pixel area. An internal circuit in the first non-pixel area has a first end portion adjacent to the first rounded corner portion of the pixel area. The first end portion of the internal circuit is rounded in accordance with the first rounded corner portion. A plurality of routing wires are in the third non-pixel area below the pixel area. The routing wires extending to the pixel area via the second non-pixel area and the first non-pixel area. The routing wires include at least a first routing wire connected to the pixel area passing an area of the first end portion of the internal circuit.