Illumination Module Light Reflecting Units Uniformity
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Solution Overview
Problem
Conventional backlight illumination modules are either thick and heavy or have high costs due to the need for light guides and additional circuit boards, and they often result in non-uniform light output.
Innovation Solution
An illumination module with light guiding strips and light reflecting units between them, which can be long strip-shaped or granular, to reflect light back and improve efficiency and uniformity, combining side-lit and direct-lit characteristics without the need for a light guide or additional circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a side-lit backlight illumination module with light guide is used, then the LED arrangement is less dense and structure is simpler, but the module becomes heavier and thicker
Solution Approach 1:
The patent extracts and removes the light guide component from the illumination module. By eliminating the light guide, the module achieves reduced weight and thickness while maintaining uniform light distribution through alternative means (direct LED arrangement with reflective surfaces), resolving the contradiction between structural simplicity and weight reduction.
Solution Approach 2:
The patent combines the functions of light emission and light reflection into a unified structure. LEDs are directly arranged on the substrate with reflective surfaces integrated into the same plane, merging the lighting function with the reflective function to eliminate the need for separate light guide components, thereby reducing weight while maintaining structural simplicity.
2Weight of stationary object
If a direct-lit backlight illumination module with dense LED arrangement is used, then the module is thinner and lighter, but the cost increases due to additional circuit boards and complex structure
Solution Approach 1:
The patent removes the additional circuit board requirement by directly mounting LEDs on a simple substrate. This extraction of unnecessary components reduces both weight and structural complexity, achieving a thin and light module without the cost and complexity of additional circuit boards.
Solution Approach 2:
The patent combines the substrate functions to serve both as mechanical support and electrical connection platform. By integrating LED mounting and electrical connections into a single substrate layer, the design eliminates additional circuit boards, reducing structural complexity and cost while maintaining the thin profile.
3Device complexity
If conventional illumination modules without light reflecting units are used, then the structure is simpler, but the light output uniformity is poor
Solution Approach 1:
The patent combines light emission and light reflection functions into a unified illumination structure. By integrating reflective surfaces directly with the LED substrate, the system achieves uniform light distribution without adding complex separate reflection components, maintaining structural simplicity while improving light output uniformity.
Solution Approach 2:
The patent introduces reflective surfaces as intermediary elements between the LEDs and the display area. These reflective surfaces act as mediators to redirect and distribute light uniformly across the display, improving light output uniformity while adding minimal structural 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 reduces weight and cost, increases LED pitch, and enhances light output uniformity and efficiency, making the module lighter, thinner, and more cost-effective compared to traditional designs.
Implementation Method 1
a plurality of light reflecting units disposed between said light guiding strips for reflecting the light from said light guiding strips
Data Source
AI summary
The present invention provides an illumination module, and a display and a general lighting apparatus using the same. Said illumination module includes a plurality of light guiding strips arranged in juxtaposition with a predefined distance; a plurality of light sources, disposed on at least one end of said light guiding strips respectively for providing the light into said light guiding strips; and a plurality of light reflecting units, disposed between said light guiding strips for reflecting the light from said light guiding strips. The light reflecting units according to the present invention can guide the light from the sides of light guiding strips or other light not toward the right side of the illumination module back to the right side of the illumination module, and thus improving the light output efficiency and uniformity.