公开(公告)号：US20200343230A1

公开(公告)日：2020-10-29

申请号：US16960480

申请日：2019-01-22

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 ,  H01L25/18 ,  H01L33/60 ,  H01L25/16 ,  H01L23/00

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：US20200312824A1

公开(公告)日：2020-10-01

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: H01L25/075 ,  G02F1/13357 ,  H01L33/60

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：US10192932B2

公开(公告)日：2019-01-29

申请号：US15244906

申请日：2016-08-23

Applicant: Apple Inc.

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

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/00

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：US20180321432A1

公开(公告)日：2018-11-08

申请号：US15809891

申请日：2017-11-10

Applicant: Apple Inc.

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

IPC: G02B5/32 ,  G03H1/00 ,  H01L27/32

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：US20170221969A1

公开(公告)日：2017-08-03

申请号：US15244906

申请日：2016-08-23

Applicant: Apple Inc.

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

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/50

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：US20170179339A1

公开(公告)日：2017-06-22

申请号：US15452294

申请日：2017-03-07

Applicant: Apple Inc.

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

IPC: H01L33/04 ,  H01L33/60 ,  H01L33/58 ,  H01L33/28 ,  H01L33/56

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.