Sub-Display Panel Layout for Seamless Edge-to-Edge Displays
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Solution Overview
Problem
Display devices with coupled sub-display panels suffer from visible seams between panels, reducing display quality.
Innovation Solution
Incorporation of inorganic light emitting materials, such as gallium nitrate, in sub-display panels, along with specific substrate materials like polyimide and glass, allows for wider light emitting element placement without the need for edge capping, minimizing seam visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sub-display panels are coupled to each other to form a larger display, then the display area is increased, but visible seams appear between panels reducing display quality
Solution Approach 1:
The patent applies color conversion layers (quantum dots, phosphors) and color filter layers to the light emitting elements, enabling precise color control and matching across coupled sub-display panels. This ensures that adjacent panels display consistent colors and brightness, making seams invisible to users while maintaining large display area.
2Reliability
If a capping member is arranged along the edge of the first substrate to surround transistors, then transistor protection is improved, but the display area is reduced due to edge capping
Solution Approach 1:
The patent removes the traditional edge capping member that surrounded transistors along the substrate edge. Instead, transistors are protected through encapsulation layers and protective structures integrated into the display panel structure, freeing up the edge area for additional light emitting elements and increasing overall display area while maintaining transistor reliability.
3Area of stationary object
If light emitting elements are placed in wider areas without edge capping, then display area is increased, but transistor protection may be compromised
Solution Approach 1:
The patent implements a nested protective structure where encapsulation layers, protective films, and structural elements are layered around transistors in a nested configuration. This nested protection system shields transistors from environmental factors while allowing light emitting elements to extend to the edges of the substrate, maximizing display area without compromising transistor reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances display area by eliminating the need for edge capping, thus reducing seam visibility and improving overall display quality.
Implementation Method 1
a plurality of light emitting elements on the second substrate and including an inorganic material
Implementation Method 2
the color conversion layer may include a wavelength conversion particle configured to excite an incident light to emit a light having a color that is different from a color of the incident light
Implementation Method 3
the color filter layer may be configured to filter the light emitted from the color conversion layer
Data Source
AI summary
A display device including a plurality of sub-display panels, wherein each of the sub-display panels includes: a first substrate; a plurality of transistors on the first substrate; a capping member arranged along an edge of the first substrate to surround the transistors; a second substrate on the capping member and the transistors; and a plurality of light emitting elements on the second substrate and electrically connected to the transistors, respectively.