Curved Light Guide Plate Segments for Quantum Dot Coupling
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Solution Overview
Problem
Glass tubular vessels used for encapsulating quantum dots are inflexible and cannot be applied to curved-surface liquid crystal displays, limiting their application in high-end products like curved-surface televisions.
Innovation Solution
A light guide plate composed of multiple linear segments connected to form a curved shape, with a light exiting surface on top and a light entering surface along the length, allowing for adjustable curvature and improved light coupling efficiency by positioning quantum dot glass tubes between the light source and the light guide plate segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glass tubular vessels are used to encapsulate quantum dots, then quantum dots are protected from water and oxygen, but the tubular vessels cannot be bent and cannot be applied to curved-surface displays
Solution Approach 1:
The light guide plate is divided into multiple linear segments that are connected to form a curved shape, allowing the system to achieve curvature while maintaining the integrity of individual glass tube components
Solution Approach 2:
The light entering surface is positioned at the lateral surface along the length direction rather than at the end, enabling light coupling in a different spatial arrangement that accommodates the curved configuration
2Ease of manufacture
If the light entering surface is positioned at the end of the light guide plate, then light coupling is simple, but light uniformity and concentration are insufficient
Solution Approach 1:
The light entering surface is relocated from the end position to the lateral surface along the length direction, changing the spatial dimension of light entry to achieve both good coupling and improved light distribution uniformity
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
Enables the use of quantum dot glass tubes in curved-surface displays by enhancing light coupling efficiency and adaptability to temperature changes, improving light uniformity and concentration on the light entering surface.
Implementation Method 1
each of the quantum dot glass tubes is arranged between the light source and a light guide plate segment correspondingly
Implementation Method 2
The light guide plate comprises multiple light guide plate segments, each of which is linear, and the multiple light guide plate segments are connected with each other successively to form an entire light guide plate
Data Source
AI summary
Disclosed are a light guide plate and a backlight module including the light guide plate. The light guide plate includes multiple light guide plate segments, each of which is linear, and the multiple light guide plate segments are connected with each other successively to form an entire light guide plate. The entire light guide plate extends in a curved shape along a length direction thereof, and the entire light guide plate includes a light exiting surface and a light entering surface which is arranged at a side of the light exiting surface. The backlight module includes a light source, a plurality of quantum dot glass tubes which are connected with each other successively, and a light guide plate. The light source and the light entering surface of the light guide plate are arranged corresponding to each other, and each of the quantum dot glass tubes is arranged between the light source and a light guide plate segment correspondingly. By means of the light guide plate and the backlight module including the light guide plate, light coupling efficiency of the light guide plate and the quantum dot glass tubes can be improved, and an application range of the quantum dot glass tubes can be enlarged.