Curved LCD Backlight Module Using Segmented Quantum Tubes
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Solution Overview
Problem
The existing quantum dot backlight technology is not suitable for curved liquid crystal display devices due to the rigidity of quantum tubes, leading to complex production processes and high costs, with unsatisfactory display effects when quantum dots are arranged on light sources or optical fibers.
Innovation Solution
A backlight module for curved liquid crystal display devices is designed with quantum tubes arranged between a light guide plate and a backlight source, forming a fold line that matches the curved surface, allowing for improved color purity and gamut while simplifying production and reducing costs through strategically placed grooves on the light guide plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If quantum tubes are used in curved liquid crystal display devices, then color purity and color gamut are improved, but the rigidity of quantum tubes makes it difficult to form curved surfaces
Solution Approach 1:
The quantum tube array is divided into multiple segments that can be independently positioned and shaped. Each segment can be separately arranged to form the required curved fold line pattern, making the rigid quantum tubes adaptable to curved display surfaces while maintaining their color enhancement function
Solution Approach 2:
The quantum tubes are arranged to form a fold line with curved geometry that matches the curved surface of the display device. This curved arrangement allows the rigid quantum tubes to conform to the curved surface requirement while maintaining their structural integrity and optical performance
2Illumination intensity
If quantum dots are arranged on light sources or optical fiber materials to improve color purity, then color performance is enhanced, but the production process becomes complex and costs increase
Solution Approach 1:
The quantum tubes are integrated directly with the light guide plate structure, merging the light guiding function and the color enhancement function into a single unified component. This eliminates the need for separate quantum dot arrangement processes on light sources or optical fibers, simplifying the production process while maintaining color purity
Solution Approach 2:
The light guide plate serves as an intermediary structure that holds and positions the quantum tubes in the correct arrangement. This intermediary structure simplifies the overall assembly process by providing a pre-configured platform for the quantum tubes, reducing production complexity
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 enables the use of quantum tubes in curved displays, enhancing color performance and gamut while simplifying manufacturing and reducing production costs, resulting in improved display quality and cost-effectiveness.
Implementation Method 1
When blue light enters into the quantum tube, the quantum dots which are packaged in the quantum tube can emit red light and green light after being excited by the blue light
Data Source
AI summary
A backlight module for curved liquid crystal display device and a curved liquid crystal display device are disclosed. The backlight module comprises a backplate, a light guide plate and a backlight source that are arranged in the backplate, and quantum tubes that are arranged between the light guide plate and the backlight source, wherein a fold line which matches a curved surface of the curved liquid crystal display device is formed by the quantum tubes. In the backlight module according to the present disclosure, the fold line that is formed by the quantum tubes can be fitted into a curved line so as to match the curved surface of the curved liquid crystal display device. The quantum tubes can be applied to the curved liquid crystal display device through this arrangement, whereby the color purity of the curved liquid crystal display device can be improved, and the color gamut thereof can be enlarged.