Quantum Dot Unit for Liquid Crystal Display Color Reproducibility
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Solution Overview
Problem
Conventional liquid crystal display devices face limitations in color reproducibility and bezel width reduction due to the use of traditional light sources and backlighting methods.
Innovation Solution
Incorporating a quantum dot unit between the light source and light guide plate, filled with quantum dots in a tube member sealed by a heat-sealed neck, which enhances light emission and color representation while minimizing bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional light sources and backlighting methods are used, then the device structure is simple, but color reproducibility is limited and bezel width cannot be reduced
Solution Approach 1:
The quantum dot unit is nested within the light source module, specifically positioned between the light source and the light guide plate. This nested configuration allows the quantum dot conversion function to be integrated into the existing backlight structure without requiring a completely separate system, thereby improving color reproducibility while controlling device complexity
Solution Approach 2:
The quantum dot unit acts as an intermediary between the blue light source and the light guide plate. It converts the blue light into narrow wavelength ranges that are then transmitted through the light guide plate to the display panel, enabling superior color reproduction without directly modifying the light source or display panel themselves
2Manufacturing precision
If quantum dot unit is added to improve color reproducibility, then color representation reaches 100% or greater, but device complexity increases
Solution Approach 1:
The quantum dot unit is merged with the light source module as an integrated component rather than a separate assembly. By combining the quantum dot conversion layer with the existing light source and light guide plate structure, the patent achieves 100% or greater color representation while minimizing the increase in overall device complexity
Solution Approach 2:
The quantum dot unit is positioned locally between the light source and light guide plate, specifically where light conversion is needed. This localized approach concentrates the color enhancement function in a specific region rather than requiring system-wide modifications, improving color representation without proportionally increasing overall device complexity
3Manufacturing precision
If quantum dot unit is used to enhance light emission, then color reproducibility improves, but bezel width reduction is compromised
Solution Approach 1:
The quantum dot unit is positioned in the optical path between the light source and light guide plate, utilizing the depth dimension of the light source module rather than occupying horizontal bezel space. This dimensional arrangement allows color reproducibility to be enhanced without compromising bezel width reduction in the visible display area
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 quantum dot unit significantly improves color reproducibility by converting light into a narrow wavelength range, achieving 100% or greater color representation and matching industry standards, while reducing the bezel width of the liquid crystal display device.
Implementation Method 1
a quantum dot unit between the light source and the light guide plate, the quantum dot unit extending along the side surface of the light guide plate and including a tube member filled with a resin including quantum dots
Implementation Method 2
The sealing part may be a sealing neck that is sealed by heat
Data Source
AI summary
A liquid crystal display device, includes a display panel; a light guide plate to transfer light to the display panel; and a light source module on a side surface of the light guide plate to supply light to the light guide plate, the light source module including a light source to generate light; and a quantum dot unit between the light source and the light guide plate, the quantum dot unit extending along the side surface of the light guide plate and including a tube member filled with a resin including quantum dots, the tube member including a sealing part.