Transparent Display Panel Signal Layout for Lower Diffraction
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Solution Overview
Problem
Transparent display panels face challenges in maintaining high resolution and display quality due to diffraction issues caused by the decrease in transmissive region area as resolution increases, leading to ghosting and reduced image clarity.
Innovation Solution
A transparent display panel design featuring a substrate with repeating units that include non-transmissive and transmissive regions, where the transmissive regions are optimized through a superimposition and aggregation design of signal lines, increasing the transmissive area and reducing diffraction, thereby enhancing display sharpness and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the transmissive region area is increased to reduce diffraction and improve transparency, then display quality and transmittance are improved, but resolution decreases
Solution Approach 1:
The patent applies multi-layer stacking to arrange signal lines in different spatial dimensions (layers), allowing signal lines carrying different signals to overlap in the plane view while being separated vertically. This resolves the contradiction by enabling both large transmissive area (reducing diffraction) and high resolution (maintaining signal integrity) simultaneously through three-dimensional spatial arrangement.
Solution Approach 2:
The patent implements nesting by placing signal lines of different types (scan lines, data lines, power lines) within overlapping spatial regions across multiple layers. Each layer contains a subset of signal lines that are nested within the broader spatial footprint of other layers, maximizing the transmissive region while maintaining all necessary signal pathways for high resolution display.
2Manufacturing precision
If signal lines are arranged in a plane to maintain resolution, then display quality is maintained, but transmissive region area decreases causing diffraction and ghosting
Solution Approach 1:
The patent transitions from two-dimensional planar arrangement to three-dimensional multi-layer arrangement of signal lines. By distributing signal lines across multiple vertical layers, the design reduces their cumulative footprint in the transmissive region while maintaining complete signal coverage for high resolution, thereby eliminating diffraction and ghosting effects.
Solution Approach 2:
The patent segments the signal line arrangement into multiple layers, with each layer containing specific signal lines (e.g., scan lines in one layer, data lines in another). This segmentation allows the total signal line area to be distributed across layers, reducing the effective blocking area in any single plane while maintaining all necessary connections for resolution.
3Manufacturing precision
If more signal lines are added to increase resolution, then display quality improves, but transmissive region area decreases leading to diffraction issues
Solution Approach 1:
The patent uses vertical layering to accommodate increased numbers of signal lines without increasing their planar footprint. By adding signal lines in the vertical dimension (new layers) rather than spreading them in the horizontal plane, the design supports higher resolution while maintaining large transmissive regions, thereby preventing ghosting and diffraction.
Solution Approach 2:
The patent nests additional signal lines required for high resolution within the spatial footprint of existing signal line structures by placing them in different layers. This nesting allows more signal lines to coexist in the same planar region without increasing the overall transmissive region blocking area, thus maintaining both high resolution and eliminating ghosting.
Data Source
AI summary
A transparent display panel includes: a substrate (100), and multiple repeating units (10) arranged in an array on the substrate. The non-transmissive region (A1) of the repeating unit includes: at least one pixel unit (P), N sets of first traces (11) extending in a first direction (X) and M sets of second traces (12) extending in a second direction (Y) electrically connected to the pixel unit. A set of first traces includes: multiple first signal lines (111) and at least one second signal line (112), an orthographic projection of at least one second signal line on substrate covers that of at least two first signal lines on substrate; or, a set of second traces includes: multiple third signal lines (121) and at least one fourth signal line (122), orthographic projection of at least one fourth signal line on substrate covers that of at least two third signal lines on substrate.