公开(公告)号：US20240363392A1

公开(公告)日：2024-10-31

申请号：US18765940

申请日：2024-07-08

Applicant: Applied Materials, Inc.

Inventor： Daihua Zhang ,  Yingdong Luo ,  Mingwei Zhu ,  Hou T. Ng ,  Sivapackia Ganapathiappan ,  Nag B. Patibandla

IPC: H01L21/70 ,  H01L21/02 ,  H01L21/027 ,  H01L25/075 ,  H01L27/15 ,  H01L33/00 ,  H01L33/44 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L21/70 ,  H01L21/02104 ,  H01L21/027 ,  H01L21/707 ,  H01L25/0753 ,  H01L27/153 ,  H01L33/00 ,  H01L33/0093 ,  H01L33/44 ,  H01L33/505 ,  H01L33/58 ,  H01L33/62 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A multi-color display includes a backplane having backplane circuitry, an array of micro-LEDs electrically integrated with backplane circuitry of the backplane, a color conversion layer over each of a plurality of light emitting diodes, and a plurality of isolation walls separating adjacent micro-LEDs of the array.

公开(公告)号：US12132031B2

公开(公告)日：2024-10-29

申请号：US17623225

申请日：2021-12-20

Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.

Inventor： Chaoqun Yang

IPC: H01L25/075 ,  H01L33/50 ,  H01L33/58

CPC classification number: H01L25/0753 ,  H01L33/50 ,  H01L33/58 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0091

Abstract: The embodiment of the present application provides a display panel and a manufacturing method thereof. The display panel comprises a light-emitting device layer, a first optical structure layer, a second optical structure layer and an anti-reflection layer. The light-emitting device layer comprises light-emitting diodes and a retaining wall. The second optical structure layer is filled in the opening areas. Meanwhile, a refractive index of the second optical structure layer is greater than a refractive index of the first optical structure layer. The light extraction rate and display effect are improved with the optical structure layers with different refractive indexes and the retaining wall.

公开(公告)号：US20240345335A1

公开(公告)日：2024-10-17

申请号：US18755751

申请日：2024-06-27

Applicant: JADE BIRD DISPLAY (SHANGHAI) LIMITED

Inventor： Huiwen XU ,  Jian GUO ,  Shuai ZHANG

IPC: G02B6/42 ,  H01L33/24 ,  H01L33/44 ,  H01L33/58 ,  H01L33/60

CPC classification number: G02B6/4204 ,  H01L33/24 ,  H01L33/44 ,  H01L33/58 ,  H01L33/60

Abstract: Disclosed herein are a micro LED display device comprising: at least one monolithic micro LED projectors, formed to generate monochrome images separately in a same color or in a different color; an optical waveguide, formed to receive the monochrome images respectively from the monolithic micro LED projectors, deliver the monochrome images and overlap the monochrome images into an objective image; wherein, the monolithic micro LED panel comprises a micro LED array, use micro LEDs for pixels; the chief ray angle of some micro LEDs are different.

公开(公告)号：US20240339573A1

公开(公告)日：2024-10-10

申请号：US18745364

申请日：2024-06-17

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: H01L33/58 ,  H01L25/075 ,  H01L25/16 ,  H01L27/15

CPC classification number: H01L33/58 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156

Abstract: A light-emitting device includes: an array light source comprising a plurality of light-emitting units arranged in an array pattern, each light-emitting unit including a light-emitting surface, wherein the light-emitting surfaces of adjacent ones of the light-emitting units are located at a first light-emitting surface interval; a first lens configured to cause light emitted by the array light source to irradiate a region to be irradiated; a movement mechanism configured to cause the first lens and the array light source to move relative to each other along a direction intersecting an optical axis of the first lens; and a control unit comprising one or more electrical circuits or one or more central processing units, the control unit configured to: control light emission of each of the plurality of light-emitting units in a predetermined period, and control operation of the movement mechanism.

公开(公告)号：US20240339440A1

公开(公告)日：2024-10-10

申请号：US18603263

申请日：2024-03-13

Applicant: Sharp Display Technology Corporation

Inventor： Kenya ITO ,  Yoshiyuki HARUMOTO

IPC: H01L25/075 ,  H01L33/58

CPC classification number: H01L25/0753 ,  H01L33/58 ,  H01L2933/0058

Abstract: Provided is a method of producing a micro-LED panel that can produce a micro-LED panel with excellent display quality by reducing misalignment of micro-LED chips and can achieve an increased yield. The method of producing a micro-LED panel includes: producing a micro-LED chip including a micro-LED, a first contact electrode, and a light blocking component; producing an array substrate including a switching element, a second contact electrode, and an insulating film; and placing the micro-LED chip on the array substrate. The light blocking component includes a bump with an inclined surface. The insulating film includes a dent with an inclined surface. The placing of the micro-LED chip includes electrically connecting the first contact electrode to the second contact electrode by making the bump of the light blocking component opposite to the dent of the insulating film.

公开(公告)号：US12113151B2

公开(公告)日：2024-10-08

申请号：US18535178

申请日：2023-12-11

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Namgoo Cha ,  Sangmin Kim ,  Jung Hwan Ahn ,  Jae Hee Lim

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/48 ,  H01L33/54 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L33/38 ,  H01L27/156 ,  H01L33/486 ,  H01L33/54 ,  H01L33/58 ,  H01L33/62

Abstract: A unit pixel includes a transparent substrate, a plurality of light emitting devices arranged on the transparent substrate, and an optical layer disposed between the light emitting devices and the transparent substrate and transmitting light emitted from the light emitting devices. The transparent substrate has a concavo-convex pattern on a surface facing the light emitting devices.

公开(公告)号：US12113149B2

公开(公告)日：2024-10-08

申请号：US18478941

申请日：2023-09-29

Applicant: NICHIA CORPORATION

Inventor： Tsuyoshi Okahisa ,  Shintaro Noma

IPC: H01L33/08 ,  H01L33/50 ,  H01L33/58 ,  H01L33/38

CPC classification number: H01L33/08 ,  H01L33/507 ,  H01L33/58 ,  H01L33/387

Abstract: A light source device includes a substrate, a light source, a liquid crystal shutter, and a lens. The light source is supported by the substrate. The light source includes a plurality of light emission units two-dimensionally arranged. The liquid crystal shutter is disposed on the light source. The lens is disposed on the liquid crystal shutter. The liquid crystal shutter is configured to perform independent ON/OFF control in two or more regions corresponding to at least one of the light emission units.

公开(公告)号：US12113094B2

公开(公告)日：2024-10-08

申请号：US18177289

申请日：2023-03-02

Applicant: InnoLux Corporation

Inventor： Jia-Yuan Chen ,  Tsung-Han Tsai ,  Kuan-Feng Lee ,  Yuan-Lin Wu

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/00 ,  H01L33/22 ,  H01L33/34 ,  H01L33/44 ,  H01L33/46 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H10K50/844 ,  H10K50/85 ,  H10K50/854 ,  H10K50/856 ,  H10K50/86 ,  H10K59/122 ,  H10K59/127 ,  H10K59/173 ,  H10K59/38 ,  H10K71/00 ,  H10K59/12

CPC classification number: H01L27/156 ,  H01L33/005 ,  H01L33/22 ,  H01L33/44 ,  H01L33/46 ,  H01L33/507 ,  H01L33/58 ,  H01L33/60 ,  H10K50/844 ,  H10K50/854 ,  H10K50/856 ,  H10K50/865 ,  H10K59/122 ,  H10K59/127 ,  H10K59/173 ,  H10K59/38 ,  H10K71/00 ,  H01L2933/0025 ,  H01L2933/0041 ,  H01L2933/0058 ,  H10K59/1201

Abstract: An electronic device includes a substrate, a first light-emitting unit, a first light conversion unit, and a first buffer layer. The first light-emitting unit is disposed on the substrate. The first light conversion unit is disposed on the first light-emitting unit. The first buffer layer is disposed between the first light conversion unit and the first light-emitting unit. The thickness of the first light conversion unit is greater than the thickness of the first light-emitting unit.

公开(公告)号：US12107199B2

公开(公告)日：2024-10-01

申请号：US17597396

申请日：2020-07-10

Applicant: DOWA Electronics Materials Co., Ltd.

Inventor： Tsukasa Maruyama ,  Takashi Araki

IPC: H01L33/58 ,  F21V19/00 ,  G02B7/02 ,  G02B27/09

CPC classification number: H01L33/58 ,  G02B7/021 ,  G02B7/027 ,  G02B27/0916 ,  F21V19/001

Abstract: Provided is a light-emitting element lamp capable of increasing a light extraction efficiency and its manufacturing method. The light-emitting element lamp according to the present invention includes: a light-emitting element having a semiconductor layer provided on a substrate; a first lens of spherical segment shape provided by protruding from a surface on the opposite side of the semiconductor layer of the substrate and having a spherical cap that includes a bottom surface consisting of an attaching surface to the surface and a protruding surface from the surface and a radius of curvature R1; and a second lens attached to the side of the light-emitting element and the protruding surface of the first lens, in which the second lens has a concave curve from a peripheral side of the bottom surface of the first lens to the semiconductor layer side on the side of the light-emitting element.

公开(公告)号：US20240322104A1

公开(公告)日：2024-09-26

申请号：US18679943

申请日：2024-05-31

Applicant: Jade Bird Display (Shanghai) Limited

Inventor： Qunchao XU ,  Huiwen XU ,  Qiming LI

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/38 ,  H01L33/46 ,  H01L33/58

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L33/382 ,  H01L33/465 ,  H01L33/58

Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two or more LED structures. Light from the micro multi-color LED device is emitted substantially vertically upward through each of the LED structures. In some embodiments, each LED structure is connected to a pixel driver and/or a common electrode. The LED structures are bonded together through bonding layers. In some embodiments, planarization layers enclose each of the LED structures or the micro multi-color LED device. In some embodiments, one or more of reflective layers, refractive layers, micro-lenses, spacers, and reflective cup structures are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.