OLED Display Panel Segmentation for High Resolution
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Solution Overview
Problem
Current organic light emitting diode (OLED) displays face challenges in achieving high resolution due to the limitations in manufacturing and integration of transistors and light-emitting diode panels, which affect the overall display performance.
Innovation Solution
The solution involves separately manufacturing and combining a transistor display panel and a light-emitting diode display panel using conductive connectors, with the transistor panel formed on a wafer substrate and connected to the light-emitting diode panel through electrical connectors, allowing for a high-resolution OLED display by increasing the number of pixels per area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If transistors and light-emitting diode panels are manufactured and integrated together in a conventional OLED display, then the manufacturing process is simpler, but the display resolution is limited due to manufacturing constraints
Solution Approach 1:
The display is divided into two separate panels: a transistor display panel and a light-emitting diode display panel. Each panel is manufactured independently using optimized processes, then combined through conductive connectors. This segmentation allows each panel to be manufactured with high precision without the constraints of integrated manufacturing, thereby achieving high display resolution while managing complexity through modular assembly.
2Manufacturing precision
If more transistors are integrated in the same area to increase pixel density, then display resolution improves, but manufacturing and integration become more difficult
Solution Approach 1:
By separating the transistor panel from the light-emitting diode panel, the patent enables high pixel density to be achieved in the transistor panel without the manufacturing constraints of integrating light-emitting structures. The conductive connectors provide electrical connection without adding to the in-plane density constraints, allowing high pixel density while maintaining ease of manufacture through specialized process optimization for each separate panel.
Solution Approach 2:
The patent transitions from a two-dimensional integrated layout to a three-dimensional stacked configuration with conductive connectors extending between panels. This dimensional change allows high pixel density in the planar direction while using the vertical dimension for electrical connections, thereby maintaining ease of manufacture while achieving high resolution.
3Manufacturing precision
If separate panels are manufactured and combined using conductive connectors, then high resolution is achieved, but the device structure becomes more complex
Solution Approach 1:
The patent segments the display into functionally optimized separate panels that are combined through conductive connectors. This segmentation achieves high resolution by allowing each panel to be manufactured with specialized processes, while the connector structure, though adding complexity, provides a standardized interface that simplifies the overall integration process through modular assembly.
Data Source
AI summary
An organic light emitting diode display is provided including a first display panel. The first display panel includes a first substrate and a transistor disposed on the first substrate. The transistor includes an input electrode and an output electrode. A second display panel is provided including a second substrate, a first electrode disposed on the second substrate, an emission layer disposed on the first electrode, and a second electrode disposed on the emission layer. A first connector is disposed on the output electrode and between the first display panel and the second display panel. The second display panel further includes a first opening formed in the second substrate and a pixel electrode connector disposed in the first opening. The output electrode of the transistor is electrically connected to the first electrode through the first connector, and the first electrode and the first connector are electrically connected through the pixel electrode connector.