Head-Up Display Optics for Collimated Light Utilization

Solution Overview

Problem

Existing optical systems face inefficiencies in utilizing large-angle light emitted by image sources, leading to insufficient luminous efficiency and increased power consumption or operating temperature.

Innovation Solution

Incorporating a self-emitting display that emits collimated light and an optical element on its path to improve light utilization, utilizing a collimator to collimate light emitted by light-emitting units and potentially including wavelength conversion materials to enhance luminous efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the output power of the image source is increased to achieve required brightness or contrast, then the imaging quality is improved, but the power consumption increases

Engineering Contradiction:

ImprovebrightnessVSAvoidpower consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent changes the angular distribution parameter of light emission by using a self-emitting display with specific emission characteristics (large emission angle) combined with optical elements to redirect and utilize previously wasted large-angle light, thereby improving luminous efficiency without increasing power consumption

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces optical elements as intermediaries between the self-emitting display and the final image formation. These optical elements capture and redirect the large-angle emitted light, enabling more efficient light utilization and reducing the need for high output power from the display

Inventive Principle:

Principle #24Intermediary (Mediator)

2Illumination intensity

If the output power of the image source is increased to achieve required brightness or contrast, then the imaging quality is improved, but the operating temperature increases

Engineering Contradiction:

ImprovebrightnessVSAvoidoperating temperature

Core Design Contradiction:

Illumination intensityVSTemperature

Solution Approach 1:

The patent changes the angular distribution parameter of light emission by using a self-emitting display with specific emission characteristics (large emission angle) combined with optical elements to redirect and utilize previously wasted large-angle light, thereby improving luminous efficiency without increasing power consumption

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces optical elements as intermediaries between the self-emitting display and the final image formation. These optical elements capture and redirect the large-angle emitted light, enabling more efficient light utilization and reducing the need for high output power from the display

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If conventional optical elements are used, then the system structure is simple, but the luminous efficiency is insufficient due to inability to utilize large-angle light

Engineering Contradiction:

Improvesystem structureVSAvoidluminous efficiency

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The patent changes the angular distribution parameter of light emission by using a self-emitting display with specific emission characteristics (large emission angle) combined with optical elements to redirect and utilize previously wasted large-angle light, thereby improving luminous efficiency without increasing power consumption

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces optical elements as intermediaries between the self-emitting display and the final image formation. These optical elements capture and redirect the large-angle emitted light, enabling more efficient light utilization and reducing the need for high output power from the display

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enhances light utilization and luminous efficiency, meeting energy-saving and heat-reduction requirements by effectively utilizing collimated light in optical systems.

Implementation Method 1

The self-emitting display emits a collimated light from a surface

Methodology Applied

Scientific EffectCollimated light emission:

Implementation Method 2

The optical element is disposed on a moving path of the collimated light

Methodology Applied

Scientific EffectOptical manipulation:

Data Source

PatentUS12481169B2Optical system and head-up display

Publication Date: 2025.11.25 INNOLUX CORP

AI summary

An optical system including a self-emitting display and an optical element is provided. The self-emitting display emits a collimated light from a surface. The optical element is disposed on a moving path of the collimated light. A head-up display is further provided.