Alternating Pixel Layout for LED Display Wiring Reduction
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Solution Overview
Problem
High-resolution LED display devices face an increase in the number of wirings on substrates due to the use of multiple LED elements for red, green, and blue colors, complicating manufacturing and increasing costs.
Innovation Solution
The display device employs a configuration with alternating pixels containing green and red LED elements, and green and blue LED elements, arranged in a lattice shape to reduce the number of LED elements and wirings, allowing for a simpler manufacturing process and lower component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED elements of three colors (R, G, B) are used in each pixel, then full-color display capability is achieved, but the number of wirings on the substrate increases significantly
Solution Approach 1:
The display is segmented into different pixel types (first pixels with R and G LEDs, second pixels with G and B LEDs) arranged in a specific pattern. This segmentation allows shared wiring between adjacent pixels of the same type, reducing the total number of wirings while maintaining full-color display capability through the combination of different pixel configurations
Solution Approach 2:
Adjacent pixels of the same type are merged in terms of wiring configuration, where common anode or common cathode connections are shared between multiple pixels. This merging reduces the number of independent wiring lines needed while preserving the ability to control individual pixel colors through selective LED activation
2Manufacturing precision
If the number of LED elements increases for high-resolution display, then display resolution is improved, but the number of wires becomes significant and manufacturing complexity increases
Solution Approach 1:
The high-resolution display is achieved through segmentation into alternating pixel types rather than using complete RGB triplets in every pixel. This segmentation strategy reduces the LED element count per unit area while maintaining resolution through the alternating pattern that covers all three colors across adjacent pixels
Solution Approach 2:
The wiring structure is designed with universality, where the same wiring lines serve multiple functions by being shared among different pixels of the same type. This multi-functional wiring approach allows high-resolution displays with many pixels to be achieved without a proportional increase in wiring complexity
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 reduces the number of components and driver ICs, lowers manufacturing costs, and improves reliability and luminance by minimizing heat generation and signal degradation, while maintaining image quality.
Implementation Method 1
one pixel includes LEDs of three colors of red (R), green (G), and blue (B)
Data Source
AI summary
A display device includes a plurality of first pixels each including a first light emitting diode element and a second light emitting diode element having different colors, and a plurality of second pixels each including a third light emitting diode element and a fourth light emitting diode element having different colors. The first pixel and the second pixel have different combinations of colors of light emitting diode elements, the first light emitting diode element is a green light emitting diode element, and the third light emitting diode element is a green light emitting diode element, a yellow light emitting diode element, or a white light emitting diode element. The first pixels and the second pixels are alternately arranged in a first direction and alternately arranged in a second direction intersecting the first direction.