Display Panel Binding Region Sealing for Frameless Design
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Solution Overview
Problem
Existing display panels with stacked multilayer designs face issues of light leakage and aesthetics due to the need for a wide frame on one side to cover the binding region, which detracts from the frameless effect and user experience.
Innovation Solution
A display panel design where the binding region is covered by a first sealing adhesive and a first polarizer, with the adhesive area larger than the array substrate, preventing light leakage and eliminating the need for a wide frame, and a method involving alignment, bonding, and application of sealing adhesives to ensure a stable and sealed connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a decorative member is set on the fourth side to cover the binding region, then light leakage is prevented, but the frame width increases and the frameless effect is compromised
Solution Approach 1:
The patent extracts the light-blocking function from the decorative member and relocates it to the sealing adhesive layer. The sealing adhesive is extended to cover the binding region and has light-blocking properties, eliminating the need for a separate decorative member on the fourth side. This achieves light leakage prevention while maintaining the frameless appearance.
Solution Approach 2:
The sealing adhesive is given multiple functions: it seals the binding region, prevents light leakage, and replaces the decorative member. By making the sealing adhesive multi-functional, the patent eliminates the need for additional components that would increase frame width, thus achieving both light leakage prevention and frameless effect.
2Shape
If the binding region is exposed without coverage, then the frameless effect is maintained, but light leakage occurs from the edge of the panel
Solution Approach 1:
The patent introduces the sealing adhesive as an intermediary substance between the array substrate and the first polarizer. This sealing adhesive layer serves as a mediator that blocks light from leaking through the binding region while remaining invisible from the front, thus preventing light leakage without compromising the frameless appearance.
Solution Approach 2:
The sealing adhesive is applied locally at the binding region where light leakage occurs. By concentrating the light-blocking function specifically at the binding region rather than across the entire panel, the patent prevents light leakage without adding visible frames or borders, maintaining the frameless appearance in other areas.
3Weight of moving object
If stacked multilayer panels are used to make the display thinner and lighter, then portability is improved, but the binding region requires coverage that affects aesthetics
Solution Approach 1:
The patent merges the sealing function and light-blocking function into a single sealing adhesive layer. This integrated approach eliminates the need for separate decorative members or additional structural elements that would increase weight or affect aesthetics, thus maintaining both the lightweight advantage of stacked panels and the frameless appearance.
Data Source
AI summary
The disclosure relates to a display panel, a method of manufacturing a display panel, and a display device. The display panel includes a first polarizer, an array substrate and a color film substrate that are sequentially stacked. The array substrate includes a binding region. A first sealing adhesive is filled between the binding region and the first polarizer, covers an end of a flexible circuit board away from a mainboard, and covers the binding region, which avoids using a decorative member, reduces a wide frame of a fourth side of the display panel, and increases a real frameless display effect.