Minimizing Inter-pixel Interference in Micro-LED Displays

Micro-LED display device with improved efficiency and reduced interference between subpixels. The device has a micro-LED array on a substrate. Each micro-LED has a reflective layer protruding from the back side that surrounds the LED. The reflective layer forms trenches between adjacent LEDs. This prevents light leakage between subpixels.

Source

Micro-LED display panel with improved color conversion efficiency and reduced crosstalk between pixels. The panel uses groups of at least three micro-LEDs per pixel, with the LED orientations staggered to increase spacing between them. The spacing between adjacent LEDs is filled with a shielding layer that has apertures aligned with each LED. This reduces crosstalk. The larger LED has a larger aperture for its shielding.

Source

The manufacturing method for micro-LED displays that have isolated subpixels to prevent color crosstalk and maintain color purity in micro-LED displays. The method involves using opaque walls or trenches between subpixels to block light emitted by one subpixel from stimulating nearby subpixels. This isolation prevents optical crosstalk and color mixing. An opaque material is deposited and patterned between micro-LEDs to form vertical walls or trenches that extend above the micro-LEDs. This opaque isolation layer blocks light transmission between subpixels. The isolation walls are formed by depositing multiple layers of different materials to create an opaque core and coating to the micro-LED emission wavelengths. This layering process provides isolation walls that are taller than the micro-LEDs and prevents crosstalk.

Source

The micro-LED display panel has partitioning walls to minimize crosstalk between the micro-LED cells, enabling high-resolution displays with individually addressable pixels. The panel has micro-LED cells arranged in a matrix shape and partitioning walls above them. The partitioning walls are made by cutting grooves in a light-transmitting member and filling them to form walls. The walls separate the micro-LED cells optically. The panel is made by bonding the micro-LED cells to a backplane, separating the growth substrate, and adding the partitioning walls.

Source

A monolithic micro-LED display with improved contrast and reduced light leakage between pixels. The display uses a flip-chip mounted structure with through-hole absorbing structures on top of each pixel. The absorbing structures are alternating dielectric and metal layers that absorb light emitted from the pixel. The through-hole allows electrical contact to be made with the pixel electrode. The absorbing layers prevent light from reflecting or transmitting to adjacent pixels, thus improving contrast.

Source

Double-color micro-LED display panel design with improved light output and resolution compared to conventional micro-LED displays. The design uses a barrier between pixels to prevent cross-talk and improve display efficiency. Each pixel has two light-emitting layers: one emitting red light and the other emitting blue light. The barrier blocks the red light from one pixel, reaching the blue light-emitting layer of another pixel and vice versa. This allows compact packing of pixels with different colors in a single pixel area. The barrier can be metal or insulating material.

Source

The micro-LED display panel and device have increased color conversion efficiency compared to conventional micro-LED displays, thus enabling a wide color gamut and high-quality display. The panel has three micro-LEDs per pixel arranged in a triangle, with shielding between them. Each micro-LED emits a different primary color. A quantum dot conversion layer over each LED selectively converts the light to a desired color. The shielding prevents crosstalk.

Source

Micro-LED display device with improved stability and performance by reducing interference between micro-LEDs. The device has a barrier layer that fills the gaps between micro-LEDs to block light crosstalk. The barrier layer has two parts - an opaque lower section to block light and a transparent upper section. The lower section fills the gaps between micro-LEDs to prevent crosstalk. The upper section covers the lower section and micro-LEDs without gaps to improve stability. The lower section height is 0.7-1.2x the micro-LED height.

Source

Micro-LED display technology provides a solution to mutual interference between adjacent micro-LED pixels. The micro-LED array uses blocking walls to isolate individual micro-LED pixels and prevent light leakage between them. The walls surrounding the mesas contain micro-LEDs. This avoids cross-talk and interference when multiple pixels are lit simultaneously. It allows high-resolution micro-LED displays without the interference issues seen in closely packed arrays.

Source

Micro-LED display assembly with improved light concentration and filtering for high-performance micro-LED displays. The assembly uses electroplated metal housings around each micro-LED pixel to concentrate and direct the emitted light upward. An RGB filter on top produces any desired color. The metal housing prevents light interference between pixels.

Source