Stacked RGB LED Array Positioning for Display Packing Control
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Solution Overview
Problem
Current display technologies, such as stacked light emitting diode (LED) displays, face challenges in efficiently controlling the packing scheme of LEDs to optimize image properties like brightness, color gamut, and resolution, which affects the overall display quality.
Innovation Solution
A stacked LED display configuration with three arrays of LEDs emitting red, green, and blue light, respectively, and actuators that adjust the position of each LED array and individual LEDs in the x and y directions to control the packing scheme, allowing for precise control of image properties by overlapping, partially overlapping, or not overlapping LEDs to achieve desired display characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed packing scheme is used for LED arrays, then device complexity is reduced, but image properties (brightness, color gamut, resolution) cannot be optimized
Solution Approach 1:
The patent implements a dynamic packing scheme where the relative positions of LED arrays (red, green, blue) can be adjusted along the optical axis and laterally. This allows the display to transition between different packing configurations (e.g., from overlapping to non-overlapping arrangements) to optimize image properties for different viewing conditions, directly resolving the contradiction between adaptability and complexity by making the system dynamically adjustable rather than fixed
Solution Approach 2:
The patent divides the LED display system into three independently controllable arrays (red, green, blue) that can be positioned and packed relative to each other. This segmentation allows independent optimization of each color channel's position and packing density, enabling precise control over overall image properties while maintaining manageable complexity through modular control of each segment
2Manufacturing precision
If LED arrays are stacked closely to improve resolution, then display quality increases, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs adjustable and reconfigurable LED array positions that can be dynamically tuned after assembly. This dynamic capability allows the system to achieve high effective resolution without requiring extremely tight manufacturing tolerances during assembly, as the positioning can be optimized post-manufacturing through actuator adjustment, thereby reducing the stringency of manufacturing precision requirements
Solution Approach 2:
The patent changes the positional parameters of LED arrays along the optical axis and laterally to optimize the effective packing density. By allowing continuous adjustment of these parameters rather than relying on fixed discrete positions, the system can achieve optimal resolution while accommodating variations in manufacturing tolerances, thus easing the overall manufacturing difficulty
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 solution enables precise control over image properties such as brightness, color gamut, and resolution, improving display quality by allowing for customizable packing schemes that adapt to environmental conditions and user input.
Implementation Method 1
A stacked LED display can include a first array of LEDs that are configured to emit red light, a second array of LEDs that are configured to emit green light, and a third array of LEDs that are configured to emit blue light
Data Source
AI summary
Embodiments of the present disclosure include apparatuses and method for a stacked light emitting diode (LED) display. A stacked LED display can include a first array of LEDs that are configured to emit red light, a second array of LEDs that are configured to emit green light, and a third array of LEDs that are configured to emit blue light. The stacked LED hologram display can include a number of actuators configured to adjust a position of a first array of LEDs in a first direction and a second direction orthogonal to the first direction, adjust a position of a second array of LEDs in the first direction and the second direction, and adjust a position of a third array of LEDs in the first direction and the second direction to control the packing scheme of the LEDs.