Display Panel Barrier Wall Pixel Defining Pattern Contact
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Solution Overview
Problem
Existing electronic devices with display panels face challenges in maintaining product reliability due to variations in transmittance and pixel density across different regions, which can affect image quality and durability.
Innovation Solution
The electronic device incorporates a display panel with distinct regions, including a transmissive region and an element region, featuring a barrier wall and organic layers, where the pixel defining pattern contacts the barrier wall and extends towards it, ensuring uniformity and improved structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel has regions with different transmittance and pixel density, then the display panel can accommodate electronic modules and provide functional versatility, but the image quality and product reliability deteriorate due to non-uniformity
Solution Approach 1:
The patent applies local quality by creating distinct regions with different properties: a first region with higher transmittance for electronic module access and a second region with standard characteristics for display functions. This allows each region to be optimized for its specific purpose while maintaining overall system reliability through controlled non-uniformity.
Solution Approach 2:
The display panel is segmented into multiple functional regions with different characteristics. The first region is designed with higher transmittance to allow external light to reach electronic modules, while the second region maintains standard display properties. This segmentation enables functional versatility without compromising overall product reliability.
2Ease of manufacture
If the pixel defining pattern is spaced apart from the barrier wall, then the manufacturing process is simpler and easier to implement, but the structural integrity and uniformity of the display panel deteriorate
Solution Approach 1:
The pixel defining pattern is designed to extend toward the barrier wall in advance, creating a preliminary structural arrangement that ensures uniformity and structural integrity. This preliminary configuration maintains precise spacing relationships between components, ensuring consistent display quality while remaining manufacturable.
3Reliability
If the barrier wall height is increased to improve structural integrity, then the durability and reliability of the display panel improve, but the manufacturing complexity and difficulty increase
Solution Approach 1:
The barrier wall height is optimized to a specific parameter range that provides sufficient structural integrity and durability while maintaining manufacturability. By carefully controlling the height parameter, the patent achieves improved reliability without excessive manufacturing complexity.
Data Source
AI summary
An electronic device includes a display panel including a first region including a transmissive region and an element region and a second region spaced apart from the first region. The display panel includes a base layer, a circuit layer that is disposed on the base layer and that includes a pixel circuit and a barrier wall disposed in the element region, an element layer that is disposed on the circuit layer and that includes a plurality of light emitting elements and a pixel defining film, and an encapsulation layer disposed on the element layer. The pixel defining film includes a pixel defining pattern disposed in the element region and a pixel defining layer disposed in the second region, and a side surface of the pixel defining pattern is in contact with a side surface of the barrier wall.