Laser Projector Display Module Compact Arrangement
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Solution Overview
Problem
Conventional portable devices face limitations in increasing display pixel count without enlarging the device size, as smaller pixel sizes below the resolving power of the human eye offer no added value, and larger images are desired due to increased network bandwidth and processing power, necessitating a compact yet effective display solution.
Innovation Solution
A laser projector display module is arranged with a miniaturized light source module, scanner module, and thermal management system, electrically connected to an electronics module, with an optical assembly directing light from the light source onto the scanner module, optimizing size and performance while addressing thermal and electrical layout issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display pixel count is increased while maintaining the same device size, then the image size can be increased to provide more information and applications, but the pixel size must be reduced below the resolving power of the human eye which offers no added value
Solution Approach 1:
The patent uses a projector display system that creates a virtual image projection rather than relying on direct pixel rendering. The projector module projects light patterns onto a screen or surface, allowing the display to present larger images without requiring proportionally larger physical pixel areas. This copying approach enables high-resolution display at reduced pixel sizes by projecting the image rather than directly rendering it.
Solution Approach 2:
The patent transitions from a conventional planar display to a three-dimensional projection system. By projecting light onto a screen or surface at an angle, the system creates the illusion of a larger display area without increasing the physical footprint of the display module itself. This dimensional transformation allows the image to appear larger while the actual hardware remains compact.
2Area of moving object
If the display module size is increased to provide a larger image, then more information and applications become available, but the device size and weight increase
Solution Approach 1:
The patent divides the display system into separate functional modules: a compact projector module, a display screen, and supporting components. This segmentation allows the projector to remain small while the display screen can be positioned separately, enabling a larger effective display area without increasing the core device volume. The modular approach separates the computation/projection function from the display surface.
Solution Approach 2:
The patent integrates the projector module within or alongside the device housing, nesting the projection mechanism within the existing device architecture. The projector is positioned to project onto an external screen or surface, allowing the display functionality to be embedded within the device footprint while providing a larger effective display area through external projection.
3Volume of moving object
If conventional display technologies are used to maintain small device size, then the display module remains compact, but the image size is limited and cannot accommodate increased network bandwidth and processing power
Solution Approach 1:
The patent replaces conventional electronic display technologies (such as OLED or LCD panels) with a optical projection system. Instead of using electrical signals to directly drive pixels, the system uses a projector to optically project images onto a screen. This substitution allows the display to present much larger images with higher information capacity while maintaining a compact device size, as the projection mechanism is smaller than a conventional display panel of equivalent output size.
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
This configuration enables a compact laser projector display module that enhances image size and optical performance, facilitating the integration of more information and applications in handheld devices without increasing the device's overall size, while maintaining thermal and electrical efficiency.
Implementation Method 1
an optical assembly configured to direct light from the light source onto the scanner module
Implementation Method 2
A thermal management system configured to control temperature of the laser projector display module
Data Source
AI summary
A laser projector display module for a handheld device may include an electronics module, a miniaturized light source module electrically connected with the electronics module, a scanner module electrically connected with the electronics module, and an optical assembly configured to direct light from the light source onto the scanner module. The scanner module and the light source module may abut the electronics module.