Display Panel Curved Light Deflection Surfaces Narrow Edge Frame
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Solution Overview
Problem
Current display technologies face challenges in narrowing or removing the edge frame of display panels due to complex drive circuits and limited cutting allowances, increasing design and process difficulties.
Innovation Solution
A display panel design featuring a cover plate, first substrate, and second substrate with curved light deflection surfaces and an isolation layer, where the deflection surfaces redirect light from the image display region to cover the edge frame region, allowing for a narrowed or non-edge frame effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If complex drive circuits are arranged within a very limited range to narrow or remove the edge frame, then the edge frame width is reduced, but the design difficulty of drive circuits increases
Solution Approach 1:
The patent extracts the drive circuits from the limited edge frame region and relocates them to the backlight assembly area. This is achieved by using a transparent adhesive layer to transparently connect the flexible printed circuit board (which contains the drive circuits) to the backlight assembly, thereby removing the constraint of arranging complex circuits within the narrow edge frame region while maintaining the narrowed edge frame visual effect.
2Length of moving object
If cutting allowance is reduced to narrow the edge frame, then the edge frame width is reduced, but the process difficulty increases
Solution Approach 1:
The patent introduces a transparent adhesive layer as an intermediary component between the flexible printed circuit board and the backlight assembly. This adhesive layer serves as a mediator that enables reliable connection while accommodating the reduced cutting allowance, thereby facilitating the narrowed edge frame design without significantly increasing manufacturing process difficulty.
3Length of moving object
If drive circuits are relocated to the backlight assembly area, then the edge frame can be narrowed or removed, but the connection structure between components becomes more complex
Solution Approach 1:
The patent employs a flexible printed circuit board (FPC) as a thin film component to connect the drive circuits to the display panel. The FPC can be bent and routed to the backlight assembly area, providing a flexible connection solution that reduces edge frame width while maintaining manageable connection structure complexity through the use of this specialized thin film component.
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 design provides greater flexibility in achieving a narrowed or non-edge frame effect, reducing process complexity and design difficulties associated with edge frame reduction.
Implementation Method 1
the first substrate is formed with a curved first light deflection surface at an edge thereof, the first light deflection surface being located on a side of the first substrate facing the isolation layer, covering the edge frame region and an edge portion of the image display region of the display functional stacked layers and being configured to deflect light from the edge portion of the image display region of the display functional stacked layers towards an edge of the cover plate
Implementation Method 2
the cover plate is formed with a curved second light deflection surface at the edge thereof, the second light deflection surface being located on a side of the cover plate facing the isolation layer, covering the edge frame region and an edge portion of the image display region of the display functional stacked layers and being configured to deflect light deflected by the first light deflection surface away from the edge of the cover plate
Data Source
AI summary
The present invention discloses a display panel and a display device. The display panel comprises: a cover plate, a first substrate and a second substrate stacked on top of one another; display functional stacked layers located between the first substrate and the second substrate, the display functional stacked layers having an image display region and an edge frame region; an isolation layer located between the first substrate and the cover plate, the isolation layer having a refractive index different from those of the first substrate and the cover plate, and wherein the first substrate is formed with a curved first light deflection surface at an edge thereof, the first light deflection surface being configured to deflect light from the edge portion of the image display region of the display functional stacked layers towards an edge of the cover plate, and the cover plate is formed with a curved second light deflection surface at the edge thereof, the second light deflection surface being configured to deflect light deflected by the first light deflection surface away from the edge of the cover plate. The display panel and the display device can achieve a display effect of narrowed edge frame or non-edge frame.