Samsung Electronics Co., Ltd.

Jenghun Suh

Myunghee Kim

Jihoon Kang

Jitsuo Ota

Jaephil Shim

Sungwook Kim

Donghwan Kim

Sungtae Kim

Dai Aoki

Yong Namkung

A micro LED and a display module are provided. The micro LED includes a first semiconductor layer having a light emission surface and electronically connected to a first electrode; a second semiconductor layer electronically connected to a second electrode; an active layer disposed between the first and second semiconductor layers; and a wavelength conversion layer stacked on the light emission surface of the first semiconductor layer. The wavelength conversion layer is made of a semiconductor having a chalcopyrite-structure. The display module includes a plurality of such plurality of micro LEDs arranged in pixel units, which are electronically connected to a plurality of TFT electrodes. The module also includes a glass substrate and a TFT layer formed on one surface of the glass substrate, and the plurality of TFT electrodes are formed on the TFT layer. The resulting TFT layer does not require a color filter or a cover layer.

Micro LED and display module having same

A display module is disclosed. The display module includes a pixel that includes: first to third self-luminescence elements that are configured to emit light of an ultraviolet wavelength range; first to third color conversion layers respectively corresponding to light emitting surfaces of the first to third self-luminescence elements; a first color filter and a second color filter respectively corresponding to the first color conversion layer and the second color conversion layer; a transparent resin layer corresponding to the third color conversion layer and disposed on a same plane as a plane at which the first color filter and the second color filter are positioned; a transparent cover layer that covers the first color filter, the second color filter, and the transparent resin layer; and an ultraviolet (UV) cutoff filter that covers the transparent cover layer.

Display module and manufacturing method as the same

A display module is disclosed. The display module includes pixels provided on the substrate, one of which includes: inorganic light emitting elements configured to emit light of a same color; light dispersing layers provided on light emitting surfaces of the inorganic light emitting elements; color conversion layers provided on the light dispersing layers; and color filters provided on the color conversion layers. When viewed from above an upper surface of the substrate, the light dispersing layers are larger than the inorganic light emitting elements.

Display module and manufacturing method thereof

A display module includes a substrate, and a plurality of pixels provided on the substrate, wherein each of the plurality of pixels includes a first inorganic light emitting element including a distributed Bragg reflectors (DBR) layer, a second inorganic light emitting element including a DBR layer, a third inorganic light emitting element, a first color conversion layer provided adjacent to the first inorganic light emitting element, a second color conversion layer provided adjacent to the second inorganic light emitting element, and a first color filter provided adjacent to the first color conversion layer, a second color filter provided adjacent to the second color conversion layer, wherein a size of the first color conversion layer is larger than a size of the first inorganic light emitting element, and a size of the second color conversion layer is larger than a size of the second inorganic light emitting element.

A display module and a manufacturing method thereof are provided. The manufacturing method may include forming an epitaxial film comprising a light emitting layer, a first type semiconductor layer, and a second type semiconductor layer, attaching the epitaxial film to an intermediate substrate comprising a conductive material, patterning the epitaxial film to form a light emitting diode (LED) and coupling the LED to a driving circuit layer through the conductive material.

A display panel including an LED device and a method including: forming a plurality of light emitting diodes (LEDs); and forming a plurality of partition walls that divide light-emitting regions by each of the plurality of LEDs, wherein the forming the plurality of LEDs includes: etching a growth substrate to form a plurality of LEDs and forming a plurality of protrusions and a plurality of depressions on the growth substrate; and forming a reflector layer on a surface of the plurality of protrusions and a surface of the plurality of depressions, and wherein the forming the plurality of partition walls includes removing a part of the growth substrate so that the plurality of partition walls are formed based on the plurality of protrusions, and a space between the plurality of partition walls is formed based on the plurality of depressions.

LED display module, manufacturing method for LED display module and display device including LED display module

An LED device includes: a first semiconductor layer of a first type; a second semiconductor layer of a second type; a light emitting layer formed between the first semiconductor layer and the second semiconductor layer and configured to emit light; and a filter formed on the second semiconductor layer and configured to transmit light in the second wavelength band within the first wavelength band. The filter includes a defect layer, first refractive layers, and second refractive layers having a refractive index greater than a refractive index of the first refractive layers, the first refractive layers and the second refractive layers are formed alternately on one side and other side of the defect layer. A thickness of the defect layer is determined based on a center wavelength of the first wavelength band, a peak wavelength of the second wavelength band and a refractive index of the defect layer.

Growing community of inventors

Suwon-si, South Korea

Jenghun Suh