Flexible OLED Substrate Seamless Assembly
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Solution Overview
Problem
Conventional multi-screen displays have visible seams between adjacent sub-screens due to display screen frames, affecting the display quality of pictures.
Innovation Solution
A method of forming a flexible base layer on a rigid base substrate, fabricating an organic light emitting diode (OLED) device, and stripping the rigid substrate to enable seamless assembly of sub-screens, allowing for continuous picture display without seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual sub-screens with frames are used to form a multi-screen display, then the multi-screen display function is achieved, but wide seams are left between adjacent sub-screens affecting display quality
Solution Approach 1:
The display system is segmented into a rigid base substrate and a flexible base layer that can be independently processed and then combined. The flexible base layer is formed on the rigid base substrate, allowing the two regions to be manufactured separately with high precision and then integrated without requiring precise alignment of multiple framed sub-screens, thereby eliminating seams while maintaining multi-screen functionality
Solution Approach 2:
The patent merges the rigid base substrate and flexible base layer into a unified structure where the flexible base layer is formed directly on the rigid base substrate. This combination allows the two regions to function as a single integrated display system, eliminating the physical gaps and seams that would exist between separate framed sub-screens while preserving the ability to display multiple screens
2Manufacturing precision
If a flexible base layer is formed on a rigid base substrate and the rigid substrate is stripped in the second region, then seamless assembly is achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The flexible base layer is formed on the rigid base substrate before the rigid substrate is stripped in the second region. This preliminary formation allows the flexible layer to be properly adhered and positioned, ensuring seamless assembly. The stripping process is performed as a subsequent step after the flexible layer is already in place, which simplifies the overall process by avoiding the need for precise alignment during the stripping operation
Solution Approach 2:
The flexible base layer acts as an intermediary between the rigid base substrate and the final display structure. It allows the rigid substrate to be stripped away in the second region while maintaining structural integrity and seamless connections. The flexible layer mediates the transition from a fully rigid structure to a partially flexible structure, simplifying the manufacturing process by providing a buffer that accommodates the stripping operation
3Stability of the object's composition
If conventional framed sub-screens are used, then structural stability is maintained, but visible seams reduce display quality
Solution Approach 1:
The display system employs different structural qualities in different regions: the first region maintains a rigid base substrate for structural stability, while the second region uses a flexible base layer formed on the rigid substrate that can be stripped to eliminate seams. This local differentiation allows each region to have the properties needed for its specific function - stability where needed and seamlessness where needed - resolving the contradiction between structural stability and display quality
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
The solution achieves seamless assembly of sub-screens, enhancing display quality by eliminating seams and enabling flexible display configurations such as winding, spreading, or bending for various display functions.
Implementation Method 1
fabricating an organic light emitting diode device on the substrate with the flexible base layer formed thereon
Data Source
AI summary
A display screen and a method of preparing the same are disclosed. The method includes steps of: forming a flexible base layer (20) on a rigid base substrate (10), wherein the rigid base substrate (10) includes a first region (101), a second region (102), and a connection region (103) between the first region and the second region, and the flexible base layer (20) is at least formed in both the second region (102) and the connection region (103); fabricating an organic light emitting diode device on the substrate with the flexible base layer (20) formed thereon; and stripping the rigid base substrate (10) in the second region (102) along a boundary between the second region (102) and the connection region (103). By means of a flexible display technology, the above method can achieve seamless assembly between adjacent sub-screens, and therefore increases display quality of pictures.