Double-Sided Display Panel With Shared TFT Substrate
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Solution Overview
Problem
Conventional double-sided display screens are thick due to the use of two separate display panels, leading to issues with thickness, power consumption, and resolution, especially in large-sized displays.
Innovation Solution
A display panel design with a single driving substrate connected to both light-emitting device layers on either side, utilizing a single driving thin-film transistor to drive both layers, and a layered metal and insulating structure to minimize thickness and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate display panels are stuck together to achieve double-sided display, then double-sided display function is achieved, but the thickness of the display screen becomes large
Solution Approach 1:
The patent merges two separate display panels into a single integrated display panel by sharing a common driving substrate and thin-film transistor layer. The first and second light-emitting device layers are disposed on opposite sides of the same driving substrate, eliminating the need for two separate panels and their respective driving circuits, thus reducing overall thickness while maintaining double-sided display functionality
Solution Approach 2:
The driving substrate and thin-film transistors serve multiple functions by simultaneously controlling both the first light-emitting device layer (for front display) and the second light-emitting device layer (for back display). This multi-functional design allows a single set of driving components to enable double-sided display, reducing the number of layers and overall device thickness
2Adaptability or versatility
If two separate display panels are used for double-sided display, then double-sided display is achieved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent combines the driving circuits, thin-film transistors, and insulating layers into a single shared structure that serves both display sides. By forming both light-emitting device layers on opposite sides of the same driving substrate during a single manufacturing process, the patent eliminates the need to manufacture and assemble two separate panels, thereby reducing manufacturing complexity and cost
Solution Approach 2:
The patent segments the display panel into distinct functional layers (first light-emitting device layer, driving substrate with thin-film transistors, second light-emitting device layer) that can be manufactured sequentially in a single production line. This layered segmentation allows for standardized manufacturing processes while maintaining a simplified overall structure compared to assembling two complete panels
Data Source
AI summary
A display panel, a manufacturing method thereof, and a display device are provided. The display panel includes a driving substrate, a first light-emitting device layer disposed on a side of the driving substrate, and a second light-emitting device layer disposed on a side the driving substrate away from the first light-emitting device layer. The first light-emitting device layer includes a plurality of first light-emitting devices. The second light-emitting device layer includes a plurality of second light-emitting devices. The driving substrate includes a plurality of driving thin-film transistors. A driving thin-film transistor is connected to a first light-emitting device and a second light-emitting device. The first light-emitting device layer and the second light-emitting device layer are respectively disposed on two sides of the driving substrate. A single driving thin-film transistor is configured to drive the first light-emitting device and the second light-emitting device simultaneously to emit light.