Transparent Resin Layer for OLED Display Panel Support
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Solution Overview
Problem
The manufacturing of organic light emitting display devices is complicated by the need for support pins that must be of precise length to avoid color mixing or Newton ring phenomena, and the materials used for these pins have a short service life.
Innovation Solution
Incorporating at least one first transparent resin layer between the organic light emitting layer and the cover plate to support the space between them, eliminating the need for support pins and using transparent resins or their mixtures with added scattering or antioxidant particles to enhance light extraction and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If support pins are used to support the space between the cover plate and the array substrate, then the structural stability is improved, but the manufacturing precision requirement increases due to strict height requirements to avoid color mixing or Newton ring phenomena
Solution Approach 1:
The patent removes the support pins from the device structure and replaces them with a transparent resin layer that fills the space between the cover plate and array substrate. This extraction eliminates the need for precise support pin height control while maintaining the necessary spacing and structural stability through the resin's volumetric presence rather than discrete pin support.
Solution Approach 2:
The transparent resin layer acts as an intermediary material that replaces the functional role of support pins. Instead of using discrete pins with specific heights, the resin provides continuous support and maintains the required spacing between components, thereby eliminating the manufacturing precision issues associated with pin height while preserving structural integrity.
2Length of stationary object
If support pins are used to maintain the space between the cover plate and the array substrate, then the spacing is maintained, but the device complexity increases due to the need for precise pin height control
Solution Approach 1:
The patent extracts the support pin component entirely from the device architecture and replaces it with a transparent resin layer. This simplifies the device structure by eliminating discrete support elements and their associated height control requirements, while the resin's ability to maintain spacing is achieved through its application as a continuous material layer rather than through precisely engineered pin heights.
Solution Approach 2:
The invention changes the parameter of support from discrete dimensional control (pin height) to continuous material application (resin layer thickness). This parameter transformation simplifies the manufacturing process by allowing spacing control through material deposition techniques rather than requiring precise mechanical dimensioning and assembly of support pins.
3Ease of manufacture
If traditional support pins are used, then the manufacturing process is simplified in terms of component selection, but the service life is reduced due to the material of the support pins
Solution Approach 1:
The patent replaces the traditional support pin material (which has limited service life) with an organic resin material that is inherently compatible with the OLED structure and environment. The resin layer, while simpler to manufacture with, provides enhanced long-term stability and resistance to degradation, effectively trading the ease of using standard pin materials for superior durability through material selection.
Solution Approach 2:
The invention employs a transparent resin material that combines the necessary mechanical properties for spacing maintenance with chemical stability and resistance to degradation. This composite approach creates a support structure that is both easy to manufacture and highly durable, resolving the contradiction between manufacturing simplicity and service life by selecting a material that excels in both aspects.
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
This simplifies the manufacturing process, improves display quality by avoiding pin-related issues, and extends the service life of the display device by using transparent resins with added particles that enhance light extraction and resistance.
Implementation Method 1
at least one first transparent resin layer is disposed between the organic light emitting layer and the cover plate to support a space between the organic light emitting layer and the cover plate
Implementation Method 2
using transparent resins or their mixtures with added scattering or antioxidant particles to enhance light extraction
Implementation Method 3
using transparent resins or their mixtures with added scattering or antioxidant particles to enhance light extraction and durability
Data Source
AI summary
A display device, a display panel and a manufacturing method therefor are disclosed. The display panel can include a cover plate; an array substrate disposed opposite to the cover plate; an organic light emitting layer, which is of a top-emitting type or a bottom-emitting type, disposed between the cover plate and the array substrate; and at least one first transparent resin layer disposed between the organic light emitting layer and the cover plate. With the solution in the disclosure, the method for manufacturing the display panel is simplified.