公开(公告)号：US20240347516A1

公开(公告)日：2024-10-17

申请号：US18611108

申请日：2024-03-20

Applicant: Apple Inc.

Inventor： Dmitry S. Sizov ,  Ion Bita ,  Jean-Jacques P. Drolet ,  John T. Leonard ,  Jonathan S. Steckel ,  Nathaniel T. Lawrence ,  Xiaobin Xin ,  Ranojoy Bose

IPC: H01L25/075 ,  H01L23/00 ,  H01L25/16 ,  H01L25/18 ,  H01L33/00 ,  H01L33/38 ,  H01L33/60

CPC classification number: H01L25/0753 ,  H01L24/08 ,  H01L24/32 ,  H01L24/73 ,  H01L25/167 ,  H01L25/18 ,  H01L33/60 ,  H01L33/0008 ,  H01L33/0093 ,  H01L33/38 ,  H01L2224/08225 ,  H01L2224/32225

Abstract: Light emitting structures and methods of fabrication are described. In an embodiment, LED coupons are transferred to a carrier substrate and then patterned to LED mesa structures. Patterning may be performed on heterogeneous groups of LED coupons with a common mask set. The LED mesa structure are then transferred in bulk to a display substrate. In an embodiment, a light emitting structure includes an arrangement of LEDs with different thickness, and corresponding bottom contacts with different thicknesses bonded to a display substrate.

公开(公告)号：US10748969B2

公开(公告)日：2020-08-18

申请号：US15809891

申请日：2017-11-10

Applicant: Apple Inc.

Inventor： Jean-Jacques P. Drolet ,  Jonathan S. Steckel

IPC: H01L27/32 ,  H01L51/52 ,  G02F1/1335 ,  G02F1/1343 ,  G03H1/02 ,  G02B5/32 ,  G03H1/00 ,  F21Y113/13

Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode or may be formed from other pixel structures such as liquid crystal display pixel structures. The pixels may emit light such as red, green, and blue light. An angle-of-view adjustment layer may overlap the array of pixels. During operation, light from the pixels passes through the angle-of-view adjustment layer to a user. The viewing angle for the user is enhanced as the angular spread of the emitted light from the pixels is enhanced by the angle-of-view adjustment layer. The angle-of-view adjustment layer may be formed from holographic structures recorded by applying laser beams to a photosensitive layer or may be formed from a metasurface that is created by patterning nanostructures on the display using printing, photolithography, or other patterning techniques.

公开(公告)号：US20190296264A1

公开(公告)日：2019-09-26

申请号：US16216656

申请日：2018-12-11

Applicant: Apple Inc.

Inventor： Mathew Mathai ,  Jonathan S. Steckel ,  Hitoshi Yamamoto

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: Display panel narrow band emission pixels and methods of fabrication are described. In an embodiment, such a pixel arrangement includes a pair of reflective electrodes, a pair of narrow band emission layers, and a pair of hole transport layers of different thickness over the pair of reflective electrodes and narrow band emission layers. A semi-transparent or transparent top electrode layer is located over the first and second hole transport layers.

公开(公告)号：US09620686B2

公开(公告)日：2017-04-11

申请号：US14853580

申请日：2015-09-14

Applicant: Apple Inc.

Inventor： Jonathan S. Steckel ,  Sajjad A. Khan ,  Jean-Jacques P. Drolet

IPC: H01L29/18 ,  H01L29/15 ,  H01L29/20 ,  H01L31/0232 ,  H01L33/50 ,  H01L33/56

CPC classification number: H01L33/04 ,  H01L33/28 ,  H01L33/501 ,  H01L33/56 ,  H01L33/58 ,  H01L33/60 ,  H01L2224/1403 ,  H01L2224/16225 ,  H01L2924/0002 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00

Abstract: A display may be provided with light sources. The light sources may include light-emitting diodes. The light sources may have packages formed from package bodies to which the light-emitting diodes are mounted. Layers such as quantum dot layers, light-scattering layers, spacer layers, and diffusion barrier layers may be formed over the package bodies and light-emitting diodes. Quantum dots of different colors may be stacked on top of each other. A getter may be incorporated into one or more of the layers to getter oxygen and water. Quantum dots may be formed from semiconductor layers that are doped with n-type and p-type dopant to adjust the locations of their conduction and valance bands and thereby enhanced quantum dot performance.

公开(公告)号：US20230018406A1

公开(公告)日：2023-01-19

申请号：US17809785

申请日：2022-06-29

Applicant: Apple Inc.

Inventor： Dmitry S. Sizov ,  Ion Bita ,  Jean-Jacques P. Drolet ,  John T. Leonard ,  Jonathan S. Steckel ,  Nathaniel T. Lawrence ,  Xiaobin Xin ,  Ranojoy Bose

IPC: H01L25/075 ,  H01L23/00 ,  H01L25/16 ,  H01L25/18 ,  H01L33/60

Abstract: Light emitting structures and methods of fabrication are described. In an embodiment, LED coupons are transferred to a carrier substrate and then patterned to LED mesa structures. Patterning may be performed on heterogeneous groups of LED coupons with a common mask set. The LED mesa structure are then transferred in bulk to a display substrate. In an embodiment, a light emitting structure includes an arrangement of LEDs with different thickness, and corresponding bottom contacts with different thicknesses bonded to a display substrate.

公开(公告)号：US11217567B2

公开(公告)日：2022-01-04

申请号：US16860757

申请日：2020-04-28

Applicant: Apple Inc.

Inventor： Jonathan S. Steckel ,  Jean-Jacques P. Drolet ,  Roland Van Gelder ,  Kelly C. McGroddy ,  Ion Bita ,  James Michael Perkins ,  Andreas Bibl ,  Sajjad A. Khan ,  James E. Pedder ,  Elmar Gehlen

IPC: H01L29/18 ,  H01L33/00 ,  H01L25/075 ,  G02F1/13357 ,  H01L33/60 ,  G02F1/1335 ,  H01L33/44

Abstract: Display panels and methods of manufacture are described for down converting a peak emission wavelength of a pump LED within a subpixel with a quantum dot layer. In some embodiments, pump LEDs with a peak emission wavelength below 500 nm, such as between 340 nm and 420 nm are used. QD layers in accordance with embodiments can be integrated into a variety of display panel structures including a wavelength conversion cover arrangement, QD patch arrangement, or QD layers patterned on the display substrate.

公开(公告)号：US10591774B2

公开(公告)日：2020-03-17

申请号：US15693305

申请日：2017-08-31

Applicant: Apple Inc.

Inventor： Jean-Jacques P. Drolet ,  Yuan Chen ,  Jonathan S. Steckel ,  Ion Bita ,  Dmitry S. Sizov ,  Chia Hsuan Tai ,  John T. Leonard ,  Lai Wang ,  Ove Lyngnes ,  Xiaobin Xin ,  Zhibing Ge

IPC: G02F1/1335 ,  G02F1/1343 ,  F21V8/00 ,  G06F3/044 ,  G02F1/1368 ,  G02F1/1333 ,  G06F3/041

Abstract: A display may have display layers that form an array of pixels. The display layers may include a first layer that includes a light-blocking matrix and a second layer that overlaps the first layer. The first layer may include quantum dot elements formed in openings in the light-blocking matrix. The light-blocking matrix may be formed from a reflective material such as metal. The second layer may include color filter elements that overlap corresponding quantum dot elements in the first layer. Substrate layers may be used to support the first and second layers and to support thin-film transistor circuitry that is used in controlling light transmission through the array of pixels. The display layers may include a liquid crystal layer, polarizer layers, filter layers for reflecting red and green light and/or other light to enhance light recycling, and layers with angularly dependent transmission characteristics.

公开(公告)号：US20190131356A1

公开(公告)日：2019-05-02

申请号：US16219898

申请日：2018-12-13

Applicant: Apple Inc.

Inventor： Jonathan S. Steckel ,  Mathew K. Mathai ,  Paul S. Drzaic ,  Hitoshi Yamamoto

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/3209 ,  H01L27/3211 ,  H01L51/0003 ,  H01L51/0013 ,  H01L51/5016 ,  H01L51/502 ,  H01L51/5044 ,  H01L51/5072 ,  H01L51/5278 ,  H01L2251/5369

Abstract: Displays including hybrid pixels including an OLED subpixel and QD-LED subpixel are described. In an embodiment, OLED and QD-LED stacks are integrated into the same pixel with multiple common layers shared by the OLED and QD-LED stacks.

公开(公告)号：US20180019371A1

公开(公告)日：2018-01-18

申请号：US15694378

申请日：2017-09-01

Applicant: Apple Inc.

Inventor： Jonathan S. Steckel ,  Hitoshi Yamamoto ,  Paul S. Drzaic

IPC: H01L33/06 ,  H01L33/30 ,  H01L33/28 ,  H01L33/50 ,  H01L27/15

Abstract: Quantum dot layers and display devices including quantum dot layers are described. In an embodiment the quantum dot layer includes quantum dots with coatings to adjust the spacing between adjacent quantum dots. In an embodiment, the coatings are metal oxide coatings and may create a charge transporting matrix. In an embodiment, the coatings are core-material coatings. The QD layers may be QD-LED compatible.

公开(公告)号：US20170271605A1

公开(公告)日：2017-09-21

申请号：US15192938

申请日：2016-06-24

Applicant: Apple Inc.

Inventor： Jonathan S. Steckel ,  Hitoshi Yamamoto ,  Paul S. Drzaic

IPC: H01L51/50 ,  H01L27/12 ,  H01L33/06 ,  H01L27/32

CPC classification number: H01L51/502 ,  B82Y20/00 ,  C09K11/025 ,  H01L27/1225 ,  H01L27/3211 ,  H01L33/06 ,  H01L51/5004 ,  H01L51/506 ,  H01L51/5076 ,  H01L51/5096 ,  H01L2251/552 ,  H01L2251/558

Abstract: Quantum dot layers and display devices including quantum dot layers are described. In an embodiment the quantum dot layer includes quantum dots with metal oxide coatings to adjust the spacing between adjacent quantum dots. In an embodiment, the metal oxide coatings may create a charge transporting matrix, be QD-LED compatible.