LED Projection Array Module for High-PPI Seamless Display Splicing
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Solution Overview
Problem
Current display technologies, such as LCD and OLED, face limitations in brightness and scalability due to low light efficiency and manufacturing challenges, making them unsuitable for large screens and high-brightness applications, while LED direct-view screens struggle to achieve high pixels per inch (PPI) and seamless splicing.
Innovation Solution
An LED direct-view projection array light-emitting module that integrates monochromatic LED array chips with optical magnification components and a drive unit to achieve high PPI and adjustable brightness, allowing for the creation of large, high-definition screens with seamless splicing and flexible designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If LCD or OLED direct-view technology is used, then high pixels per inch (PPI) can be achieved, but brightness is limited and large screens over 100 inches cannot be produced
Solution Approach 1:
The invention segments the display system into multiple independent light-emitting modules, each containing LED chips and optical components. This allows parallel arrangement of modules to achieve both high PPI through dense positioning and high brightness through multiple light sources, while enabling large screen sizes through modular expansion without compromising either resolution or luminance
Solution Approach 2:
The invention merges direct-view LED light emission with optical projection components (lenses, mirrors) within an integrated module. This combination allows the system to achieve both the high brightness of projection technology and the direct-view capability of LED screens, resolving the contradiction between brightness and PPI by utilizing both emission modes simultaneously
2Area of stationary object
If LCD projection or DLP projection technology is used, then large screen sizes can be achieved, but brightness remains relatively low and light efficiency is poor
Solution Approach 1:
The invention merges direct-view LED light emission with optical projection components (lenses, mirrors) within an integrated module. This combination allows the system to achieve both the high brightness of projection technology and the direct-view capability of LED screens, resolving the contradiction between brightness and PPI by utilizing both emission modes simultaneously
Solution Approach 2:
The invention implements adjustable optical parameters including variable magnification through interchangeable lenses, adjustable projection angles, and configurable light emission patterns. This dynamic adjustability allows optimization of brightness and screen size for different application scenarios, enabling the system to adapt between high-brightness projection mode and high-PPI direct-view mode
3Illumination intensity
If LED direct-view screens are used, then high brightness can be achieved, but high pixels per inch and seamless splicing are difficult to achieve
Solution Approach 1:
The invention segments the display system into multiple independent light-emitting modules, each containing LED chips and optical components. This allows parallel arrangement of modules to achieve both high PPI through dense positioning and high brightness through multiple light sources, while enabling large screen sizes through modular expansion without compromising either resolution or luminance
Solution Approach 2:
The invention employs optical fields (analogous to pneumatic/hydraulic systems in terms of field interaction) to transmit and focus light from LED chips through optical components. This optical field manipulation enables precise control of light distribution, achieving high PPI through focused light convergence while maintaining high brightness through efficient optical coupling, eliminating the need for physical contact between adjacent modules for seamless splicing
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 the production of large, high-definition LED screens with adjustable brightness and PPI ranging from 20 to 1000, overcoming the limitations of existing technologies by integrating LED array chips and optical magnification, allowing for flexible and seamless splicing and meeting various application scenarios.
Implementation Method 1
The three display sources are three monochromatic integrated LED array chips corresponding to R, G, and B light bands respectively
Implementation Method 2
LED array chips corresponding to R, G, and B light bands respectively
Implementation Method 3
each optical magnification component includes an objective lens for magnification
Data Source
AI summary
Disclosed are an LED direct-view projection array light-emitting module and a display screen. The light-emitting module includes a video decoding drive board, a display unit drive board, display units, and an imaging unit from the bottom up. The present disclosure uses a semiconductor technology to integrate and miniaturize light sources that emit light actively to obtain integrated LED array chips as light-emitting sources, directly controls the light-emitting sources through a circuit, then uses magnification objective lenses to perform a certain magnification according to an application scenario requirement, and then focuses on and image each pixel by using a focusing lens. Through a combination of the magnification lenses and the focusing lenses, when the light source intensity is sufficient, products of various sizes can be designed; when splicing into a large screen, splicing angles can be adjusted arbitrarily to realize a flexible screen or a special-shaped screen.