Transparent Display Pixel Layout With Bridged Voltage Lines
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Solution Overview
Problem
Existing transparent display devices face challenges in achieving a high aperture ratio, which limits their transmittance and overall display performance.
Innovation Solution
A pixel structure is designed with a substrate, conductive pattern layers, a voltage line bridge structure, and a subpixel driver circuit, where the first data line partially overlaps the voltage line, effectively reducing the opaque wiring area and increasing the aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If conventional wiring layout is used in transparent display devices, then electrical connectivity is ensured, but aperture ratio is reduced due to increased opaque wiring area
Solution Approach 1:
The voltage line is configured to extend in a second direction that is not parallel to the first direction (in which the light-emitting signal line extends). This dimensional change in wiring layout allows the voltage line to bridge between voltage line segments on opposite sides of the light-emitting signal line without increasing the overall wiring area, thereby maintaining high aperture ratio while ensuring electrical connectivity.
Solution Approach 2:
The voltage line is divided into a first voltage line segment and a second voltage line segment located on both sides of the light-emitting signal line. These segments are separated from each other and connected via a voltage line bridge structure. This segmentation allows the wiring to be distributed more efficiently around the light-emitting signal line, reducing the total opaque wiring area while maintaining electrical connectivity.
2Reliability
If voltage lines are placed on both sides of the light-emitting signal line, then electrical connectivity is improved, but wiring complexity increases
Solution Approach 1:
The voltage line bridge structure serves multiple functions: it electrically connects the first and second voltage line segments, maintains the non-parallel directional relationship with the light-emitting signal line, and contributes to the overall pixel structure integrity. This multi-functionality reduces wiring complexity by consolidating multiple requirements into a single structural element.
Data Source
AI summary
A pixel structure includes a first conductive pattern layer, a voltage line bridge structure, and a second conductive pattern layer. The first conductive pattern layer includes a first light-emitting signal line and a voltage line. The first light-emitting signal line extends in a first direction. The voltage line includes a first voltage line segment and a second voltage line segment located on both sides of the first light-emitting signal line and separated from each other. The first voltage line segment and the second voltage line segment extend in a second direction. The voltage line bridge structure electrically connects the first voltage line segment to the second voltage line segment. The second conductive pattern layer includes a scan line and a first data line. The scan line extends in the first direction. The first data line extends in the second direction and at least partially overlaps the voltage line.