Collapsible Backlight Source Using Flexible Optical Fibers
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Solution Overview
Problem
Current backlight sources for transparent displays are complex to manufacture and inflexible for assembly, making it difficult to design and use in the transparent display field.
Innovation Solution
A collapsible backlight source comprising a light source, guide fibers, and transmission fibers coupled by a reflection joint, where light from the source passes through the guide fiber, is reflected by a reflection element in the joint, and emitted by a reflection head on the transmission fiber, allowing flexible operation and embedding within a frame's grooves for easy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a special light guide plate with transparent electrodes and high molecular materials is used to achieve transparent display, then the display function is achieved, but the manufacturing complexity increases significantly
Solution Approach 1:
The light guide plate is segmented into multiple functional layers: transparent electrode layer, light guide layer, and diffuser layer. Each layer performs a specific function, allowing independent optimization and simplified manufacturing processes for each component while achieving the overall transparent display effect.
Solution Approach 2:
A diffuser layer is introduced as an intermediary between the light guide plate and the display region. This diffuser layer scatters the light uniformly and enables the transparent display effect without requiring complex modifications to the light guide plate itself, thereby reducing manufacturing complexity.
2Ease of manufacture
If functional films and outermost frame are combined to create a backlight module, then the backlight function is achieved, but the assembly flexibility decreases
Solution Approach 1:
The backlight module employs a flexible assembly structure where functional films can be dynamically adjusted and repositioned. The outermost frame is designed with adjustable components that allow flexible assembly and disassembly, enabling easy maintenance and adaptation to different display configurations without compromising the backlight function.
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 collapsible design enhances flexibility and convenience, enabling efficient light projection onto a display screen while maintaining high resolution and uniformity, suitable for transparent display devices.
Implementation Method 1
light emitted from the light source passes through the guide fiber and enters into the coupling joint
Implementation Method 2
the coupling joint is provided with a reflection element therein, a first end of the transmission fiber is coupled with a second port of the coupling joint, and the second end of the transmission fiber is provided with a reflection head; wherein light emitted from the light source passes through the guide fiber and enters into the coupling joint, then is reflected by the reflection element in the coupling joint
Implementation Method 3
the reflected light enters into the transmission fiber, and is finally emitted by the reflection head
Data Source
AI summary
A backlight source comprising a light source, guide fibers and transmission fibers, the guide fibers and the transmission fibers are coupled by means of a coupling joint, wherein the first end of the guide fiber is coupled to the light source, the second end of the guide fiber is flexibly coupled to the first port of the coupling joint, and/or the first end of the transmission fiber is flexibly coupled to the second port of the coupling joint, and the second end of the transmission fiber is provided with a reflection head; the light emitted from the light source passes through the guide fiber and enters into the coupling joint, then is transmitted into the transmission fiber, and is finally emitted by the reflection head. The backlight source is collapsible and is thus flexible and convenient to use. Embodiments of the present disclosure also provide a transparent display device.