Quantum Dot Bonding Layer for LCD Interference Fringe Elimination
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Solution Overview
Problem
Existing liquid crystal display (LCD) products lack local dimming functionality due to insufficient backlight partitions, resulting in poor contrast and viewing experience, and the bonding area of dual LCD display panels is prone to interference fringes.
Innovation Solution
A display panel structure comprising two liquid crystal display panels laminated with a bonding layer containing a quantum dot material layer, which includes an adhesive and quantum dots, and additional adhesive layers for enhanced adhesion and protection, allowing for pixel-level backlight modulation and preventing interference fringes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual LCD display panels are bonded together to achieve pixel-level backlight modulation, then local dimming function is improved, but interference fringes appear in the bonding area
Solution Approach 1:
The patent introduces a bonding layer as an intermediary between the first and second LCD panels. This bonding layer contains a quantum dot material layer that serves as a mediator to eliminate interference fringes while maintaining the optical coupling necessary for pixel-level backlight modulation. The quantum dot material absorbs and re-emits light, preventing direct optical interference between the bonded panels.
Solution Approach 2:
The bonding layer is constructed as a composite material system comprising a quantum dot material layer dispersed in an adhesive matrix. This composite structure combines the optical properties of quantum dots (which eliminate interference fringes through photoluminescence) with the adhesive properties of the binder, achieving both optical performance and mechanical bonding.
2Device complexity
If insufficient backlight partitions are used in traditional LCDs, then device complexity is reduced, but contrast ratio deteriorates
Solution Approach 1:
The patent employs the second LCD panel as a segmentation structure that divides the backlight into multiple independently controllable regions at the pixel level. Each pixel or sub-pixel region can be independently dimmed, creating fine-grained backlight partitions without requiring complex physical partition structures. This achieves high contrast ratio through software-controlled segmentation rather than hardware partitioning.
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 solution achieves significant improvement in display effect by enabling pixel-level backlight modulation and eliminating interference fringes, thereby enhancing contrast and display quality.
Implementation Method 1
the bonding layer includes at least one quantum dot material layer, the quantum dot material layer includes an adhesive and quantum dots
Implementation Method 2
the quantum dot material layer includes an adhesive and quantum dots
Data Source
AI summary
The present disclosure provides a display panel including a first panel, a second panel, and a bonding layer; the first panel and the second panel are laminated by the bonding layer; the bonding layer includes at least one quantum dot material layer. The display panel of the present disclosure can achieve a display effect of a pixel-level backlight modulation, and can avoid interference fringes in the middle bonding area of the first panel and the second panel.