Display Panel Shift Register Overlap for Transparent Edges
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Solution Overview
Problem
Existing display technologies face challenges in achieving borderless displays with high edge transparency, particularly in applications involving light-emitting diodes (LEDs) where ensuring a certain transmittance in the edge area is crucial.
Innovation Solution
The display panel design includes a substrate with a driving layer and electrode layer, featuring shift registers and electrode groups, where the shift register units partially overlap with electrode groups, allowing for a borderless display by relocating shift registers into the display area and reserving transparent areas at the edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If shift registers are arranged in the non-display area, then the display structure is simple and easy to manufacture, but the frame area increases and edge transparency is reduced
Solution Approach 1:
The patent applies dimensionality change by moving the shift register from the planar non-display area into the vertical display area. Specifically, the shift register is disposed in the display area and overlaps with the electrode group in the vertical direction, transforming a 2D layout problem into a 3D spatial arrangement. This allows the shift register to occupy vertical space rather than horizontal frame area, achieving borderless display while maintaining manufacturing feasibility.
2Area of stationary object
If shift registers are relocated into the display area, then the frame area is reduced for borderless display, but the manufacturing complexity increases
Solution Approach 1:
The patent merges the shift register with the electrode group by positioning them to overlap in the vertical direction. This combining approach allows both components to share the same spatial footprint, eliminating the need for separate non-display areas while reducing overall device complexity. The merged structure simplifies the display configuration by integrating driving functions directly within the display region.
3Illumination intensity
If the edge area is reserved for transparency, then the transmittance is improved, but the area available for shift register placement is reduced
Solution Approach 1:
The patent resolves this contradiction by utilizing the vertical dimension to place the shift register. Instead of competing for horizontal edge area, the shift register is positioned to overlap with the electrode group vertically, allowing the horizontal edge area to remain fully transparent while accommodating the driving circuitry in the vertical space above or below the substrate plane.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes: a substrate, a driving layer, and an electrode layer. The driving layer and the electrode layer are located on a side of the substrate. The driving layer includes a shift register, and the shift register includes a plurality of cascaded shift register units. The electrode layer includes a plurality of electrode groups, and one of the plurality of electrode groups includes a first electrode and a second electrode. Along a direction perpendicular to a plane where the substrate is located, the plurality of shift register units at least partially overlaps with at least one of the plurality of electrode groups.