Display Panel Mark Structure Overlap for Frameless Splicing
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Solution Overview
Problem
The area of the display region is limited by the mark structure in existing display panels, which restricts the ability to achieve slim or frameless designs, especially in splicing displays.
Innovation Solution
The display panel incorporates a mark structure with a drilled layer having through holes, allowing light emitting elements to overlap with the mark structure, thereby expanding the display region and eliminating the need for border regions, enabling slim or frameless designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mark structures are arranged in border regions to identify display panels, then the mark structures can be clearly positioned for identification, but the area of the display region is limited
Solution Approach 1:
The mark structure is positioned in the depth dimension by overlapping with light emitting elements in the display region, rather than being placed in the border region in the planar dimension. This dimensional transition allows the mark structure to occupy space in the Z-direction (through the drilled layer with through holes) while maintaining visibility and identification functionality, thereby freeing up the planar display area.
Solution Approach 2:
The mark structure is nested within the display region by positioning it underneath the light emitting elements. The drilled layer with through holes allows the mark structure to be embedded in the panel structure while still being optically accessible, creating a nested configuration where the mark structure occupies the same planar footprint as the display region without reducing the effective display area.
2Ease of manufacture
If mark structures are placed in border regions, then the display panels can be easily identified and spliced, but slim or frameless designs cannot be achieved
Solution Approach 1:
The mark structure is moved from the border region (planar dimension) to the depth dimension by overlapping with light emitting elements. The drilled layer provides a vertical structure that allows mark placement in the Z-direction, enabling identification functionality without requiring planar border space, thus achieving slim or frameless display panel designs.
Solution Approach 2:
The drilled layer acts as a thin film structure that allows the mark structure to be embedded within the panel's depth rather than requiring border space. This thin film approach enables the mark to be integrated into the panel's vertical structure, facilitating slim designs while maintaining identification capability for splicing applications.
3Area of stationary object
If the display region area is maximized, then slim or frameless designs can be achieved, but the mark structure cannot be clearly positioned for identification
Solution Approach 1:
The mark structure achieves clear identification by transitioning to the depth dimension through the drilled layer with through holes. This vertical positioning allows the mark to be optically accessible and clearly identifiable while occupying the same planar space as the display region, thus maximizing the display area without compromising mark structure identification.
Solution Approach 2:
The drilled layer with through holes acts as an intermediary structure that enables the mark structure to be positioned in the depth dimension while maintaining optical accessibility. This intermediary allows light to pass through or interact with the mark structure, ensuring clear identification functionality even when the mark is positioned within the display region's planar footprint.
Data Source
AI summary
A display panel includes a substrate, a mark structure, a plurality of active elements, and a plurality of light emitting elements. The mark structure is disposed in a mark region of the display panel. The mark structure includes a drilled layer having a plurality of through holes. The active elements are disposed in an active element region of the display panel. Both the mark region and the active element region are located in a display region of the display panel. The light emitting elements are disposed in the display region of the display panel. A first portion in the light emitting elements is overlapped with the mark structure in a normal direction of a surface of the substrate.