Non-rectangular Display Panel Using Segmented Organic Layers
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Solution Overview
Problem
Conventional display technologies using organic light-emitting diodes face challenges in creating non-rectangular display regions without additional shields, limiting their design flexibility and aesthetic appeal.
Innovation Solution
A display panel configuration featuring a substrate with a pixel definition layer and organic material layers that define non-rectangular display regions through differential light-emitting properties, where the interface between different portions of the organic material layers can be curved or arc-shaped, allowing for non-rectangular patterns without the need for additional shields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional display technologies use organic light-emitting diodes with rectangular structures, then manufacturing is simple, but design flexibility and aesthetic appeal are limited
Solution Approach 1:
The organic light-emitting material layer is divided into multiple regions with different light-emitting characteristics. Specifically, the layer includes a first region with a first light-emitting wavelength and a second region with a second light-emitting wavelength, allowing the display to show different colors in different areas without needing additional color filters or complex multi-layer structures.
Solution Approach 2:
Different portions of the organic light-emitting material layer are assigned different light-emitting properties. The first region emits light at a first wavelength while the second region emits light at a second wavelength, enabling spatially varying color output from a single material layer through localized material composition or structural variations.
2Shape
If additional shields are used to create non-rectangular display regions, then design flexibility improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The organic light-emitting material layer is segmented into distinct regions that emit different colors, allowing the display boundary to follow arbitrary shapes defined by the patterned material regions rather than requiring rectangular boundaries with additional shielding structures.
Solution Approach 2:
By assigning different light-emitting wavelengths to different spatial regions of the organic material layer, the display can achieve non-rectangular shapes and curved interfaces naturally through material patterning, eliminating the need for additional shields or masks.
3Shape
If multiple organic material layers with different materials are used to create non-rectangular display regions, then display quality improves, but manufacturing complexity increases
Solution Approach 1:
The organic light-emitting material layer is patterned into different regions during the deposition process, allowing non-rectangular display shapes to be achieved through single-layer material deposition with spatially varying composition or structure, rather than requiring multiple sequential deposition steps.
Solution Approach 2:
Different regions of the same organic material layer are configured to emit different wavelengths through local variations in material composition, thickness, or molecular structure, enabling complex display patterns to be manufactured using standard single-layer deposition techniques without requiring multiple material layers.
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
Enables the creation of non-rectangular display regions with improved uniformity and brightness, maintaining the advantages of organic light-emitting diode technology while enhancing design flexibility and visual appeal.
Implementation Method 1
The first organic material layer is disposed in the first pixel area and has a first light-emitting region. The second organic material layer is disposed in the second pixel area and has a second light-emitting region.
Data Source
AI summary
An embodiment of the present disclosure provides a display panel having a non-rectangular display region. The display panel includes a substrate, a pixel definition layer, a first organic material layer, and a second organic material layer. The pixel definition layer is disposed on the substrate, and defines a first pixel area and a second pixel area on the substrate. The first organic material layer is disposed in the first pixel area and has a first light-emitting region. The second organic material layer is disposed in the second pixel area and has a second light-emitting region. The first organic material layer and the second organic material layer have the same material and the same vertical projection area on the substrate, and the vertical projection area of the first light-emitting region on the substrate is smaller than the vertical projection area of the second light-emitting region on the substrate.