Flexible Display Adhesive Layer for Wiring Protection
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Solution Overview
Problem
Conventional display devices with flexible base materials and bent parts are prone to deformation under external stress, which can damage the wiring.
Innovation Solution
A manufacturing method for a display device that includes forming a display panel with a flexible base material, bending a part adjacent to the display area, and filling the inner surface side of the bent area with liquid adhesive to form an adhesive layer, which is cured to secure the display panel in a bent state, thereby reducing damage to the wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a bent part is provided in the display device to narrow the frame area, then the frame area is reduced and display area is expanded, but the flexible base material may be deformed under external stress which damages the wiring
Solution Approach 1:
The patent applies beforehand cushioning by filling the bent area with adhesive material before the device is subjected to external stress. The adhesive is injected into the bent area and cured to form a supportive structure that prevents deformation of the flexible base material and protects the wiring from damage when external stress is applied later during use
2Area of moving object
If the flexible base material is bent to achieve narrow frame, then the display area is expanded, but the wiring may be damaged due to deformation under external stress
Solution Approach 1:
The patent applies composite materials by combining the flexible base material with an adhesive composite structure in the bent area. The adhesive material forms a composite structure with the flexible base material and wiring, providing both flexibility for bending and structural strength to protect the wiring from damage under external stress
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
The adhesive layer effectively suppresses deformation and damage to the wiring when external stress is applied, allowing for a more robust and durable display device with a narrow frame.
Implementation Method 1
a filling process to fill, by liquid adhesive, a space on the inner surface side that is in the bent area
Implementation Method 2
a curing process to cure the liquid adhesive and form an adhesive layer
Implementation Method 3
The adhesive layer effectively suppresses deformation and damage to the wiring when external stress is applied
Data Source
AI summary
A manufacturing method of a display device according to an embodiment of the present invention includes: a display panel forming process to provide a display panel includes the flexible base material, the plurality of pixels, and a display area, a display panel bending process to bend a part adjacent to the display area of the display panel and form a bent area, and arrange a part opposite to the display area with respect to the bent area to be opposed to the display area, a filling process to fill, by liquid adhesive, a space on the inner surface side that is in the bent area and that is the surface side of the display panel opposite to the surface on which the plurality of pixels are arranged on the flexible base material, and a curing process to cure the liquid adhesive and form an adhesive layer.