Stacked Display Function Layers for High Resolution
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Solution Overview
Problem
Current display units, particularly organic EL display units, face challenges in achieving high resolution and reducing power consumption while maintaining image quality and ecological efficiency.
Innovation Solution
A display unit is designed with multiple display function layers stacked in a specific configuration, each including pixel circuits, where a group of pixel circuits spans across multiple layers to form a single display pixel, allowing for increased resolution and reduced power consumption through optimized light emission and color filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple display function layers are stacked to increase resolution, then resolution is improved, but device complexity increases
Solution Approach 1:
The display device is divided into multiple display function layers, each containing pixel circuits that contribute to a single display pixel. This segmentation allows resolution to be improved by adding layers while managing complexity through modular design, where each layer is an independent functional unit that can be manufactured and assembled separately.
Solution Approach 2:
The patent transitions from a two-dimensional arrangement of pixel circuits to a three-dimensional stacked configuration. By utilizing the vertical dimension (stacking layers in the stacking direction), the display achieves higher resolution without proportionally increasing the horizontal complexity, effectively distributing circuit elements across multiple vertical layers.
2Manufacturing precision
If multiple display function layers are stacked to increase resolution, then resolution is improved, but power consumption increases
Solution Approach 1:
Multiple pixel circuits from different display function layers are combined to form a single display pixel. This merging approach allows the shared use of circuit elements across layers, reducing redundant power consumption. The pixel circuits in different layers work cooperatively to drive a single pixel, improving energy efficiency while maintaining high resolution.
3Manufacturing precision
If pixel circuits are distributed across multiple layers, then resolution is improved, but manufacturing complexity increases
Solution Approach 1:
The manufacturing process is segmented into separate fabrication steps for each display function layer. This allows each layer to be manufactured independently using standardized processes, then assembled through lamination. The segmentation simplifies manufacturing by breaking down the complex multi-layer structure into manageable, repeatable units that can be produced in parallel.
Solution Approach 2:
Display function layers are prepared and fabricated in advance as separate modules before final assembly. This preliminary action allows for independent optimization and quality control of each layer, reducing the complexity of the overall manufacturing process. The pre-fabricated layers are then laminated together in a controlled sequence, simplifying the final assembly step.
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 configuration enhances resolution and decreases power consumption, while also simplifying the drive method and manufacturing process, leading to improved image quality and ecological performance.
Implementation Method 1
a current-drive optical element that emits light of which the luminance varies depending on an applied current value, for example, an organic electro luminescence (EL) device
Data Source
AI summary
A display unit includes a plurality of display function layers provided in a stacking direction, and each including a plurality of pixel circuits. A pixel circuit group configured by predetermined number of the pixel circuits configures a single display pixel, and the predetermined number of the pixel circuits spans the plurality of display function layers.