Abstract: The present disclosure relates to a global scanning method with offset and a micro-display system, and the global scanning method with offset includes: dividing multiple rows of micro-LEDs of at least one micro-display panel into a plurality of display groups, each display group including one or more rows of micro-LEDs; determining a scanning offset duration between adjacent display groups; and scanning sequentially the plurality of display groups of the at least one micro-display panel according to the scanning offset duration. Using the global scanning method with offset of the present disclosure, the number of micro-LEDs illuminated simultaneously is reduced, and the distribution of current is more uniform in time and space, thus local concentration of peak current is avoided, and the voltage drop generated during scanning is reduced, so that the service life of the micro-display panel can be improved and the stability of the display system is improved.

Abstract: The present disclosure provides a micro-LED, including: a light-emitting mesa configured to emit light; and a reflective mirror layer configured to reflect light from the light-emitting mesa, wherein a side of the reflective mirror layer facing the light-emitting mesa has an atomic layer deposition layer, and the atomic layer deposition layer is configured to block metal diffusion in the reflective mirror layer. Through the present disclosure, metal diffusion and oxidation in the reflective mirror layer can be effectively suppressed.

Abstract: The present disclosure relates to a hybrid bonding-based micro-LED chip, including: an upper stacked layer, which includes: a first insulating layer configured to accommodate a light-emitting mesa and a first through-hole contact portion; a light-emitting mesa configured to emit light, wherein the top surface area of the light-emitting mesa is greater than the bottom surface area of the light-emitting mesa; and a first through-hole contact portion electrically connected with the bottom of the light-emitting mesa and passing through the first insulating layer; and a lower stacked layer, which includes: a second insulating layer configured to accommodate a second through-hole contact portion; a second through-hole contact portion passing through the second insulating layer; and a drive backplane electrically connected with the second through-hole contact portion, wherein the lower stacked layer is bonded with the upper stacked layer through hybrid bonding.

Abstract: Disclosed is a micro-display panel, which includes a substrate, a micro-LED display chip, a fluorescent layer, and a package layer. The micro-LED display chip is located on the substrate, and the edge of the micro-LED display chip has metal pads, and the metal pads are electrically connected with the area of the substrate that is not covered by the micro-LED display chip, and the fluorescent layer is located on the surface of the micro-LED display chip, and the package layer covers the exposed area of the substrate and the area where the micro-LED display chip is electrically connected with the substrate.

Abstract: The present disclosure provides a through-hole contact portion for a micro-LED, wherein the through-hole contact portion is configured to electrically connect a first conductive structure with a second conductive structure, wherein the first conductive structure is located below the through-hole contact portion and the second conductive structure is located above the through-hole contact portion, wherein the through-hole contact portion includes: a through-hole formed in an insulating layer and having a hollow cavity; filling metal arranged in the hollow cavity of the through-hole for conducting electricity; and a first metal barrier layer arranged between the bottom of the through-hole and the first conductive structure and/or between the top of the through-hole and the second conductive structure to block diffusion of the filling metal. Furthermore, the present disclosure also provides a method for forming the through-hole contact portion.

Abstract: Disclosed is a microlens for a micro-LED, including: a spacer portion arranged between a light-emitting mesa of the micro-LED and a lens portion to adjust the position of the focal point of the lens portion relative to the light-emitting mesa; and a lens portion arranged on the spacer portion to shape light from the light-emitting mesa, where the diameter of the upper surface of the light-emitting mesa facing the microlens is n, the spherical height of the lens portion is a x n, the radius of curvature is m, the height of the spacer portion is b x n, and the width of the spacer portion is c x n, wherein a, b, c, m, and n are all positive numbers, wherein: 1.2 ? a ? 1.6; 0.2 ? b ? 0.3; 0.9 ? c ? 1.3; and 1.3 ?m ? m ? 1.8 ?m.

Abstract: The present disclosure discloses a micro-LED display chip including a light-emitting area, a metal layer, and a shielding layer, wherein the light-emitting area includes a micro-LED array, wherein the micro-LED array includes a plurality of micro-LEDs, and the metal layer is located at the periphery of the micro-LED array, and at least a part of the metal layer is electrically connected with the micro-LED array, and the shielding layer is located on the surface of or above at least a part of the metal layer. By arranging the shielding layer, light emitted from the light-emitting area can be reflected after being reflected by the outside and reaching the surface of the shielding area, so as to effectively improve the display quality of the image.

Abstract: The present disclosure relates to a reflective mirror layer for a micro-LED, and the reflective mirror layer is configured to reflect light from the light-emitting mesa toward the light extraction side, and the area of the upper surface of the light-emitting mesa facing the light extraction side is greater than the area of the lower surface facing away from the light extraction side, wherein the reflective mirror layer includes: a main body portion arranged to cover the lower surface of the light-emitting mesa and surround the side surface of the light-emitting mesa; and an edge portion connected with the edge of the main body portion and forming an angle greater than 0° with the main body portion, wherein the edge portions of the reflective mirror layers of adjacent micro-LEDs are disconnected from each other. The present disclosure also relates to a method for manufacturing the reflective mirror layer.

Abstract: Disclosed herein is a micro-display chip including a light-emitting area and a non-light-emitting area, wherein the non-light-emitting area is arranged around the light-emitting area and includes a package layer, wherein the surface of the package layer includes a plurality of rough structures. Etching and roughening the surface of the package layer can reduce its reflectivity, so that the light emitted from the light-emitting area is diffusely reflected after being reflected by the outside and reaching the surface of the package area, which can effectively reduce the re-reflection of full-band light and improve the quality of image display.

Abstract: The present invention provides a micro-LED structure, including: a lower electrode layer; an ODR total reflection structure located on the lower electrode layer; a semiconductor light-emitting mesa located on the ODR total reflection structure, emitting light; and an upper electrode layer in contact with the top of the semiconductor light-emitting mesa. The micro-LED increases the probability of light leaving the light-emitting mesa by increasing the sidewall light emission area of the micro-LED structure, thereby improving the light emission efficiency of the LED chip.

Abstract: Various embodiments include a display panel with an integrated micro-lens array. The display panel typically includes an array of mesas which includes an array of pixel light sources (e.g., LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The array of micro-lenses is off-axially arranged on the mesas including the pixel light sources, and are positioned to reduce the divergence of light produced by the pixel light sources, and direct the light to a certain angle or focus point on a pixel by pixel basis. Different micro-lens shapes and combinations are implemented in the display panel. The display panel may also include an integrated optical spacer formed from the same micro-lens material layer to maintain the positioning between the micro-lenses and pixel driver circuits.

Abstract: A micro-LED structure includes a first type conductive layer, a second type conductive layer stacked on the first type conductive layer, and a light emitting layer formed between the first type conductive layer and the second type conductive layer. The light emitting layer extends along a horizontal level away from a top edge of the first type conductive layer and a bottom edge of the second type conductive layer, such that an edge of the light emitting layer does not contact the top edge of the first type conductive layer and the bottom edge of the second type conductive layer. The bottom edge of the second type conductive layer is aligned with the top edge of the first type conductive layer.

Abstract: A micro LED includes a first type semiconductor layer; a light emitting layer formed on the first type semiconductor layer; a second type semiconductor layer formed on the light emitting layer; wherein, at least one part of a sidewall of the second type semiconductor layer is not aligned with a sidewall of the first type semiconductor layer.

Abstract: A micro package structure includes a micro LED panel including an IC (integrated circuit) substrate and an micro LED array area formed on the IC substrate; a top cover plane formed above the micro LED panel, so that light emitted from the micro LED array area is transmitted upward to the top cover plane; and a seal structure formed between an edge of the micro LED panel and an edge of the top cover plane around the micro LED array area.

Abstract: A method for compensating a virtual image displayed by a near eye display based on a source image. The method includes acquiring virtual images displayed by the near eye display for three primary color channels, wherein each of the virtual images is based on a primary color test pattern; obtaining a correction factor matrix comprising luminance and chromaticity components of the three primary color channels; and performing compensation on the source image with the correction factor matrix.

Abstract: A micro display controlling system includes a data interface, a data decoder, a memory-write controller, a frame-memory controller including at least two frame memories, at least one color-display panel, a data processor including at least two data formatting processors, and a data output interface including at least two sub-output interfaces.

Abstract: A multi-color light emitting pixel unit includes a substrate, and a light emitting transistor formed on the substrate. The light emitting transistor includes a bottom conductive layer formed on the substrate and a top conductive layer formed over the bottom conductive layer, an upper light emitting layer formed between the top conductive layer and the bottom conductive layer, at least one lower light emitting layer formed between the upper light emitting layer and the bottom conductive layer, and an electrical connector electrically connecting the at least one lower light emitting layer and the bottom conductive layer.

Abstract: A micro display module, a projector, and a system are provided. The micro display module includes a micro LED display device including at least one micro LED (light emitting diode) panel, wherein the at least one micro LED panel includes an IC back plane and a micro LED array area having one or more micro LEDs, the micro LED array area is formed on the IC back plane and each of the micro LEDs is electrically connected with the IC (integrated circuit) back plane; and an image light rotating element including a transmission lens arranged facing the micro LED array area and a lens position rotating actuator configured to rotate the transmission lens based on at least one preset axis, wherein the preset axis is parallel to the micro LED array area.