Ambient Light Backlight Module Using Optical Fiber Bundle
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Solution Overview
Problem
Conventional backlight modules for LCDs have poor color performance and high energy consumption due to the use of LEDs or CCFLs, which struggle to produce real colors and efficient light distribution.
Innovation Solution
A backlight module that collects ambient light using an optical fiber bundle with a fiber light-outputting substrate and a fiber holding plate, featuring a soft material separation member to efficiently hold and position optical fibers, reducing energy consumption and enhancing color gamut.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LEDs or CCFLs are used as light sources in the backlight module, then the backlight can be provided for the liquid crystal display panel, but the color performance is poor and the color gamut is narrow
Solution Approach 1:
The patent extracts the light source function from traditional LEDs or CCFLs and relocates it to an external ambient light environment. By using a light collector to gather ambient light and optical fibers to transmit it, the system eliminates the need for high-energy artificial light sources while achieving superior color performance from natural ambient light.
Solution Approach 2:
The patent introduces optical fibers as an intermediary medium to transfer light from the ambient environment to the display panel. This intermediary system replaces direct LED/CCFL illumination with indirect ambient light transmission, achieving both energy savings and improved color gamut.
2Adaptability or versatility
If LEDs or CCFLs are used as light sources, then the backlight module can operate independently, but the energy consumption is high especially for large-size LCDs
Solution Approach 1:
The system utilizes ambient light from the environment as its own light source, making the backlight module self-sufficient without requiring external power-intensive LEDs or CCFLs. The optical fiber bundle acts as a self-contained light transmission system that draws energy from the surrounding environment rather than consuming electrical power.
3Use of energy by stationary object
If optical fibers are used to transmit ambient light, then energy consumption is reduced and color gamut is improved, but the optical fibers need precise positioning and holding
Solution Approach 1:
The fiber holding plate provides localized support and positioning structures specifically at the points where optical fibers need to be secured. Rather than complicating the entire system, the positioning complexity is confined to specific local areas where fibers interface with the light collector and display panel, minimizing overall device 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 significantly reduces energy consumption and improves color accuracy by utilizing ambient light, ensuring efficient light transmission and distribution, thereby enhancing display quality.
Implementation Method 1
at least one optical fiber bundle connected to the light collector, wherein the optical fiber bundle comprises a plurality of optical fibers
Data Source
AI summary
The present invention provides a backlight module and a display apparatus. The display apparatus comprises the backlight module and a display panel. The backlight module comprises a light collector, at least one optical fiber bundle, a fiber light-outputting substrate, a light guide plate and a fiber holding plate. The optical fiber bundle is connected between the light collector and the fiber light-outputting substrate. The light guide plate is disposed at one side of the fiber light-outputting substrate, and the fiber holding plate is configured to hold optical fibers of the optical fiber bundle. The present invention can use ambient light rays to form a backlight source.