MicroLED Stereoscopic Display With Lens-Controlled Viewing Angles
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Solution Overview
Problem
Conventional stereoscopic displays require glasses or additional equipment to create the illusion of three-dimensional depth, limiting their energy efficiency and contrast ratio compared to microLED technology, which struggles to achieve high brightness and efficiency without screen burn-in issues.
Innovation Solution
A microLED display system with tunable color and intensity microLED unit cells, each equipped with a lens to control emission angles and profiles, directs different light portions to each eye, eliminating the need for glasses by using a display controller to manage intensity distribution based on video data signals, creating a high contrast, energy-efficient, and responsive stereoscopic effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stereoscopic display technology is used, then stereoscopic vision is achieved, but energy efficiency and contrast ratio deteriorate
Solution Approach 1:
The patent transitions from conventional LCD or OLED stereoscopic display technology to microLED technology, fundamentally changing the display parameter to achieve superior energy efficiency and contrast ratio while maintaining stereoscopic vision quality. The microLED technology enables higher brightness and efficiency with lower power consumption compared to traditional display technologies.
2Use of energy by moving object
If microLED technology is used, then energy efficiency and contrast ratio are improved, but achieving high brightness and efficiency without screen burn-in deteriorates
Solution Approach 1:
The patent segments each pixel into multiple sub-pixels with independent microLED elements and associated lenses. This segmentation allows different microLEDs within the same pixel to emit different colors and be controlled independently, enabling the display to achieve high brightness and efficiency while distributing operational stress across multiple elements to prevent screen burn-in.
3Reliability
If glasses are used for stereoscopic display, then stereoscopic vision is achieved, but device complexity increases
Solution Approach 1:
The patent adds a spatial dimension to traditional flat display by incorporating lenses above each pixel that can independently control light emission angles. This dimensional addition enables the display to project different images to different viewing angles, creating autostereoscopic effect without requiring glasses or additional equipment for the viewer.
4Ease of operation
If microLED unit cells with lenses are used, then stereoscopic effect without glasses is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements local quality by equipping each pixel or sub-pixel with its own dedicated lens, allowing independent control of light emission characteristics for each microLED unit. This local optimization enables precise control over viewing angles and stereoscopic image quality without requiring extremely high overall manufacturing precision across the entire display panel.
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 enables an energy-efficient, high-contrast, and highly responsive stereoscopic display that presents three-dimensional images without the need for additional equipment, leveraging microLED technology's brightness and efficiency while avoiding screen burn-in, thus enhancing user experience and reducing power consumption.
Implementation Method 1
The apparatus includes a plurality of microLED unit cells, each of the microLED unit cells comprising a plurality of sets of microLEDs
Implementation Method 2
at least one lens positioned over the plurality of sets of microLEDs for controlling an emission angle and emission profile of the light emitted by the microLED unit cells
Data Source
AI summary
An apparatus and method for displaying an image are disclosed. The apparatus includes independently-controllable microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with a video data signal such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile and a second portion of the emitted light is emitted at a second emission angle with a second emission profile. The first and second light portions form three-dimensional stereoscopic images.