Optical System Using Monochrome and Double Color LED Panels

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Solution Overview

Problem

Traditional optical systems with three single color light sources and beam splitter components face challenges in miniaturization, efficiency, and cost due to increased volume and gaps between triangular prisms, which affect light consolidation.

Innovation Solution

An optical system utilizing a light combination unit with a monochrome LED panel and a double color LED panel, where the light combination unit has a cuboid structure formed by two triangular prisms with a light filtering layer, allowing for efficient combination and collimation of light without the need for three separate color light sources, thereby reducing volume and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If three single color light sources are configured at different sides of the beam splitter component, then the beam splitter can combine the three lights to form images, but the volume of the optical system increases

Engineering Contradiction:
Improvelight combining capabilityVSAvoidoptical system volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The patent merges two LED panels (monochrome and double color) into a single light source configuration, replacing the traditional three separate single-color light sources. This consolidation reduces the number of components and overall system volume while maintaining the capability to generate multiple colors for image formation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The double color LED panel serves multiple functions by emitting two different colors simultaneously, replacing what would traditionally require two separate single-color light sources. This multi-functionality reduces the total number of light sources needed while maintaining full color capability for image display.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If four triangular prisms are assembled to form the beam splitter component, then the lights can be combined according to the light splitting coating, but gaps occur between the triangular prisms reducing light consolidation efficiency

Engineering Contradiction:
Improvelight combination functionVSAvoidlight consolidation efficiency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent extracts and eliminates the problematic gaps between triangular prisms by adopting a different beam splitter configuration. The new design uses a solid structure without inter-prism gaps, removing the source of light leakage and improving consolidation efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If four triangular prisms are assembled to form the beam splitter component, then the lights can be combined, but the manufacturing cost increases

Engineering Contradiction:
Improvelight combination functionVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple triangular prisms into a single integrated beam splitter structure. This consolidation reduces the number of separate components that need to be manufactured, assembled, and aligned, thereby simplifying the manufacturing process and reducing overall production costs.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If three single color light sources are used, then the beam splitter can combine the lights, but the device complexity increases

Engineering Contradiction:
Improvecolor light combination capabilityVSAvoidnumber of light sources
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges three separate single-color light sources into two integrated LED panels (one monochrome and one double color). This reduction in component count simplifies the overall device architecture while maintaining the capability to produce and combine multiple colors for full-color image display.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The double color LED panel performs the function of multiple light sources by emitting two different colors simultaneously. This multi-functional component reduces the total number of light sources required from three to two, thereby reducing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 optical system effectively combines light with improved efficiency and reduced costs by using only two LED panels and minimizing the impact of gaps between prisms, enabling the creation of images with enhanced light combining effects.

Implementation Method 1

The light combination unit includes a light filtering layer located between the first triangular prism and the second triangular prism. The light combination unit selectively passes and reflects the first light and the second light according to the light filtering layer.

Methodology Applied
Scientific EffectLight filtering: Filter (optical)

Implementation Method 2

The light combination unit includes a first triangular prism and a second triangular prism. The first triangular prism is assembled with the second triangular prism to form the cuboid structure.

Methodology Applied
Scientific EffectLight refraction: Refraction

Data Source

PatentUS11721717B2Optical system
Publication Date: 2023.08.08 JADE BIRD DISPLAY (SHANGHAI) LTD
  • US11721717B2 patent drawing
  • US11721717B2 patent drawing
  • US11721717B2 patent drawing

AI summary

The present invention discloses an optical system including a light combination unit, a first LED panel and a second LED panel. The first LED panel is located at one side of the light combination unit and configured to emit a first light. The second LED panel is located at another side of the light combination unit and configured to emit a second light. The first LED panel is a monochrome LED panel, and the second LED panel is a double color LED panel. The first LED panel and the second LED panel respectively emit the first light and the second light into the light combination unit, and the light combination unit combines and collimates the first light and the second light along one direction.