Laminated Display Structure With Offset TFT Channel Regions
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Solution Overview
Problem
Existing laminated structures in display panels, such as those used in smartphones and TVs, face challenges in enhancing display quality while maintaining cost-effectiveness and functionality, particularly in the integration and positioning of thin film transistor circuits and light-emitting diodes.
Innovation Solution
A laminated structure is designed with a light-emitting layer including a light-emitting diode, a first layer with a first thin film transistor circuit, and a second layer with a second thin film transistor circuit, where the light-emitting diode is partially overlapped with the first thin film transistor circuit but not with the channel region of the second thin film transistor circuit, optimizing their placement to improve display quality and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the light-emitting diode is positioned to overlap with thin film transistor circuits to reduce structure size, then the area of the laminated structure is reduced, but the risk of damage to the transistor circuits during manufacturing increases
Solution Approach 1:
The patent positions the light-emitting diode in a specific spatial relationship with the thin film transistor circuits across multiple layers. The LED is placed to overlap with the first TFT circuit layer while deliberately avoiding overlap with the channel region of the second TFT circuit layer, creating a three-dimensional arrangement that optimizes both area utilization and circuit protection.
Solution Approach 2:
The patent applies different overlap configurations to different regions of the thin film transistor circuits. Specifically, the LED overlaps with certain regions (first TFT circuit) while avoiding critical regions (channel region of second TFT circuit), creating localized quality variations that protect sensitive areas while maintaining compact overall structure.
2Adaptability or versatility
If multiple thin film transistor circuits are integrated in separate layers to improve functionality, then the functionality of the display panel is enhanced, but the manufacturing complexity increases
Solution Approach 1:
The patent divides the thin film transistor circuits into separate layers (first TFT circuit and second TFT circuit on different substrates). This segmentation allows each layer to be manufactured and processed independently, then laminated together, which enhances functionality while managing manufacturing complexity through modular assembly.
Solution Approach 2:
The patent creates a nested laminated structure where the first TFT circuit layer and second TFT circuit layer are stacked and bonded together. The light-emitting diode is positioned within this nested structure, overlapping with the first layer while avoiding the channel region of the second layer, creating a compact multi-functional integrated structure.
Data Source
AI summary
A laminated structure is provided. The laminated structure includes a light-emitting layer including a light emitting diode. The laminated structure also includes a first layer including a first thin film transistor circuit. The laminated structure further includes a second layer including a second thin film transistor circuit. The second layer is located between the light-emitting layer and the first layer. The second thin film transistor circuit includes a channel region. The light emitting diode is at least partially overlapped with the first thin film transistor circuit and not overlapped with the channel region of the second thin film transistor circuit in a top view direction of the laminated structure.