Hybrid QLED OLED Display Panel Face-Up Flip Sub-Pixel Configuration
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Solution Overview
Problem
The energy level differences between QLED and OLED device materials pose challenges for achieving higher efficiency and service life in hybrid display devices, limiting their performance.
Innovation Solution
A display panel design featuring face-up and flip sub-pixels with specific layer configurations and materials, where QLED sub-pixels are disposed as flip sub-pixels and OLED sub-pixels as face-up sub-pixels, along with an optical coupling output layer, to optimize efficiency and service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QLED and OLED devices are integrated into a same display device, then color effect and power consumption are improved, but energy level differences between materials reduce efficiency and service life
Solution Approach 1:
The display panel is segmented into face-up sub-pixels and flip sub-pixels, with each type using different light-emitting materials (OLED and QLED respectively). This segmentation allows each material to operate in its optimal configuration, resolving the energy level mismatch issue while maintaining the benefits of hybrid display technology.
Solution Approach 2:
The patent inverts the conventional structure by placing QLED sub-pixels in flip configuration and OLED sub-pixels in face-up configuration. This inversion optimizes the energy level alignment and charge injection efficiency for each material type, thereby improving both efficiency and service life.
2Illumination intensity
If hybrid display device uses different light-emitting materials, then color saturation and display quality are improved, but energy level differences create potential barriers
Solution Approach 1:
Different local configurations are applied to face-up and flip sub-pixels. Face-up sub-pixels use OLED materials with specific layer structures, while flip sub-pixels use QLED materials with inverted layer structures. This local quality differentiation optimizes energy level alignment at each interface, reducing energy loss while maintaining high color saturation.
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 the efficiency and service life of each sub-pixel in a QLED/OLED hybrid display panel by addressing material energy level differences and potential barriers, resulting in improved performance.
Implementation Method 1
in the face-up sub-pixels, the light-emitting layer is made of an organic luminescent material
Implementation Method 2
in the flip sub-pixels, the light-emitting layer is made of a quantum dot luminescent material
Data Source
AI summary
The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel comprises a plurality of sub-pixels, wherein a part is face-up sub-pixels and the rest is flip sub-pixels. In the face-up sub-pixels, a first electrode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode are disposed on a substrate in sequence, and in the flip sub-pixels, the first electrode, an electron transport layer, a light-emitting layer, a hole transport layer, and the second electrode are disposed on the substrate in sequence.