Optical Module Flat Element RGB Chip Array Near-Eye Display
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing laser display technology for head-mounted display devices is bulky, costly, and limited by low resolution and refresh rates, with independent elements requiring high precision assembly and separate cameras for eye and face tracking increasing system volume.
Innovation Solution
An optical module comprising a red, green, and blue light emitting chip array with a flat optical element, allowing for simplified assembly, reduced volume, and lower costs, while achieving high refresh rates and resolutions through fast response speed and multiple module usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If independent laser elements (edge-emitting lasers, reflectors, collimators, prisms, light valves) are assembled to form a light source module, then the display function is achieved, but the system volume increases and assembly precision requirements increase
Solution Approach 1:
The patent combines multiple independent laser elements (edge-emitting laser, reflector, collimator, prism, and light valve) into an integrated laser display device. The light source module includes a light source, reflector, collimator, and diffuser that work together in a unified structure, eliminating the need for separate assembly of these components and reducing overall system volume.
Solution Approach 2:
The light source module is designed to perform multiple functions simultaneously: generating light, reflecting it, collimating the beam, and diffusing the output. This multi-functional integration reduces the number of separate components needed and simplifies the overall system architecture.
2Ease of manufacture
If independent laser elements are assembled to form a light source module, then the display function is achieved, but manufacturing costs increase
Solution Approach 1:
The patent integrates multiple optical components into a single light source module, reducing the number of separate parts that need to be manufactured and assembled. This consolidation simplifies the manufacturing process and reduces overall complexity while maintaining the required display functionality.
3Productivity
If conventional laser display technology is used, then basic display function is achieved at 720p and 30 fps, but high resolution (4k) and high refresh rate (240 fps) cannot be achieved
Solution Approach 1:
The patent employs dynamically controllable light modulators that can rapidly change the display output at high refresh rates (240 fps). The system uses controllable light sources and modulators that can be independently controlled to achieve both high resolution (4k) and high refresh rates, overcoming the limitations of conventional static laser display systems.
4Adaptability or versatility
If independent cameras are used for eye tracking and face tracking, then interactive functionality is achieved, but system volume increases
Solution Approach 1:
The patent integrates eye tracking and face tracking functionalities into the existing light source module structure. The same optical components (reflector, collimator, diffuser) that generate the display output are also utilized for tracking functions, eliminating the need for separate independent cameras and reducing system volume.
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 module design reduces system volume, lowers assembly precision and costs, and achieves high refresh rates and resolutions by utilizing independently driven light emitting chips and a flat optical element, enabling efficient near-eye display systems.
Implementation Method 1
a red light emitting chip array (110-R), a green light emitting chip array (110-G), and a blue light emitting chip array (110-B)... each of the red light emitting chips is configured to emit a red light... each of the green light emitting chips is configured to emit a green light... each of the blue light emitting chips is configured to emit a blue light
Data Source
AI summary
An optical module including a red light emitting chip array, a green light emitting chip array, a blue light emitting chip array, and a flat optical element is provided. The red light emitting chip array is configured to emit red lights. The green light emitting chip array is configured to emit green lights. The blue light emitting chip array is configured to emit blue lights. After passing through the flat optical element, the red, green, and blue lights form a plurality of light spots. Each of the light spots includes a red light spot, a green light spot, and a blue light spot which are formed after one of the red lights, one of the green lights, and one of the blue lights pass through the flat optical element. A near-eye display is also provided.