Quantum Dot Display Panel Layout for High-Resolution Light Control
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Solution Overview
Problem
Existing display panels face challenges in achieving high resolution while efficiently managing light control patterns, particularly in transmitting specific wavelength ranges and converting light colors effectively.
Innovation Solution
A display panel design that includes a window with a color filter layer, a circuit element layer with transistors, a light control layer featuring division partition walls and quantum dots, and a display element layer with light emitting elements, allowing for precise light control and high-resolution imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional display panel structure is used, then the manufacturing process is simpler, but the resolution and light control efficiency are insufficient
Solution Approach 1:
The display panel is divided into multiple functional layers including a first substrate, color filter layer, circuit element layer, light control layer, and display element layer. Each layer performs a specific function, allowing for high resolution and efficient light control while maintaining manufacturability through modular construction
Solution Approach 2:
The patent introduces a vertical stacking dimension by arranging multiple functional layers in the thickness direction of the substrate. This vertical integration allows complex light control functions to be achieved without increasing the planar footprint, thereby maintaining high resolution while managing structural complexity
2Productivity
If the light control layer is positioned closer to the display area, then light control efficiency improves, but color filter layer alignment becomes more difficult
Solution Approach 1:
A low refractive index layer is introduced as an intermediary between the color filter layer and the light control layer. This intermediary layer facilitates precise alignment by providing a controlled interface that maintains the light control layer's proximity to the display area while enabling accurate positioning relative to the color filter patterns
3Reliability
If quantum dots are used in the light control layer, then color conversion efficiency improves, but the manufacturing process becomes more complex
Solution Approach 1:
The quantum dots are integrated directly into the light control layer, merging the light control function with the color conversion function in a single layer. This consolidation improves color conversion efficiency while avoiding the need for separate quantum dot layers or additional manufacturing steps
4Manufacturing precision
If multiple filter layers are used to transmit different color lights, then color accuracy improves, but the device structure becomes more complex
Solution Approach 1:
The light control layer serves multiple functions simultaneously: it controls light transmission, converts colors using quantum dots, and maintains alignment with the color filter layer through the low refractive index layer. This multi-functionality reduces the need for additional specialized layers, thereby limiting the increase in structural complexity despite improved color accuracy
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 proposed display panel achieves high resolution and efficient light control, enabling the transmission of specific color lights and effective color conversion, thereby enhancing image quality and display performance.
Implementation Method 1
a light control pattern between the division partition walls, and including quantum dots
Implementation Method 2
The color filter layer may include first to third filter layers sequentially located on the window and configured to transmit different color light from each other
Implementation Method 3
an emission layer between the first electrode and the second electrode and configured to generate light
Implementation Method 4
a low refractive index layer covering the color filter layer
Data Source
AI summary
A display panel includes: a window including a display area, and a non-display area adjacent to the display area; a color filter layer on the window; a circuit element layer including: a low refractive index layer covering the color filter layer; and a transistor on the low refractive index layer; a light control layer including: division partition walls on the circuit element layer; and a light control pattern between the division partition walls, and including quantum dots; and a display element layer on the light control layer, and including: a first electrode; a second electrode on the first electrode; and an emission layer between the first electrode and the second electrode and to generate light. The light passes through the light control layer, the circuit element layer, and the color filter layer to be transmitted to the window.