Optoelectronic Device with Dynamic Light Adjustment for High-Definition Displays
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Solution Overview
Problem
Current optoelectronic devices face challenges in miniaturization, including reduced luminous intensity and directional issues with light emission, leading to radiation loss and difficulty in achieving multicolor images due to the mixing of light radiation between sub-pixels.
Innovation Solution
An optoelectronic device with a unique illumination mechanism and a light conversion module comprising primary and secondary conversion pads, along with a light adjustment system using optical lenses and actuators to control the emission of light beams, ensuring directional emission and alternating sequences for multicolor output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the size of light-emitting diodes is reduced to increase screen definition, then the dimensions between sub-pixels are reduced, but the luminous intensity emitted by the nanometric light-emitting diodes declines drastically
Solution Approach 1:
The patent combines multiple light-emitting diodes within a single sub-pixel to form a light conversion module. This merging allows the sub-pixel to maintain sufficient luminous intensity even as individual LED dimensions are reduced to nanometric scales, thereby resolving the contradiction between increased screen definition and maintained luminous intensity.
Solution Approach 2:
The patent introduces a light conversion module as an intermediary between the light-emitting diodes and the final light output. This module converts the light from multiple nanometric LEDs into directed light beams, enabling both high screen definition through miniaturization and sufficient luminous intensity through constructive combination.
2Manufacturing precision
If the size of light-emitting diodes is reduced to increase screen definition, then the dimensions between sub-pixels are reduced, but it becomes more difficult to prevent light radiation mixing between adjacent sub-pixels
Solution Approach 1:
The patent segments the light conversion module into distinct functional components including individual light-emitting diodes and separate light conversion elements. This segmentation allows precise control over light paths and prevents radiation mixing between adjacent sub-pixels, enabling higher screen definition without compromising contrast.
Solution Approach 2:
The patent introduces light confinement walls and directional control structures as intermediaries between adjacent sub-pixels. These structures physically separate and direct light radiation from each sub-pixel, preventing mixing even when sub-pixel dimensions are reduced to micrometric or nanometric scales.
3Manufacturing precision
If three-dimensional light-emitting diodes are used with smaller diameters, then screen definition is improved, but the light emitted is not directional and considerable radiation loss occurs
Solution Approach 1:
The patent employs dynamic light adjustment systems that can actively control and redirect light beams from nanometric light-emitting diodes. This dynamic control ensures that light is directed precisely where needed, minimizing radiation loss in undesirable directions while maintaining high screen definition through miniaturization.
Solution Approach 2:
The patent introduces optical elements and light adjustment mechanisms as intermediaries between the isotropic light emission from three-dimensional nanometric LEDs and the required directional output. These intermediaries capture and redirect light that would otherwise be lost, converting non-directional emission into focused light beams.
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
Improves the directional nature and luminous efficacy of light emission, facilitates manufacturing and piloting, reduces pixel size, and minimizes space between pixels, enhancing display quality and contrast.
Implementation Method 1
each light-emitting diode comprises an active material exploiting quantum wells
Implementation Method 2
active material exploiting quantum wells
Implementation Method 3
The optical system comprises at least one optical lens arranged between the illumination mechanism and at least one conversion pad selected from the primary conversion pad and the secondary conversion pad. The optical lens is configured to be crossed by the initial light beam and to emit, by optical transformation of the initial light beam, a transformed light beam at least partially made directional with respect to the initial light beam
Implementation Method 4
at least one primary conversion pad adapted to emit a first light radiation corresponding to a first color from the initial light beam and at least one secondary conversion pad adapted to emit a second light radiation corresponding to a second color from the initial light beam
Data Source
AI summary
An optoelectronic device includes a number of pixels, with each pixel including a lighting mechanism having at least one light-emitting diode capable of emitting an initial light beam, a light-conversion module having a plurality of conversion pads including at least one primary conversion pad and at least one secondary conversion pad. Each pixel includes a light-adjustment system configured to control at least one element chosen from a relative position between the lighting mechanism and the light-conversion module and the initial light beam. The action of the light-adjustment system is adapted so that the primary conversion pad and the secondary conversion pad emit a first light beam and a second light beam respectively, from the initial light beam, simultaneously or alternately in a predetermined sequence.