公开(公告)号：US11105677B2

公开(公告)日：2021-08-31

申请号：US16141183

申请日：2018-09-25

Applicant: Apple Inc.

Inventor： Junhwan Lim ,  Zhibing Ge ,  Christopher L. Boitnott ,  Shih-Wei Chang ,  Sang Un Choi ,  Sudirukkuge T. Jinasundera

IPC: G01J1/04 ,  G01J1/42 ,  G02F1/133 ,  G06F3/03 ,  G06F3/041 ,  G09G3/34 ,  G02F1/1339 ,  G02F1/1334 ,  G09G3/20 ,  G02F1/137 ,  G02F1/1333

Abstract: An electronic device may be provided with a display. An optical component window may be formed in the inactive area of the display. The optical component window may transmit infrared light from an infrared light source. The infrared light source may include a diffuser to allow the light source to operate in a flood illumination mode and a structured light mode. The diffuser may include liquid crystal material between first and second substrates. A sealant may surround the liquid crystal layer, and one or more spacer walls may be located between the sealant and the liquid crystal layer. An additional spacer wall may be used outside of the sealant to prevent metal from creating an electrical short between electrodes in the diffuser. Conductive material in the sealant may be used to couple a top electrode to a metal pad on a bottom substrate.

公开(公告)号：US11778858B1

公开(公告)日：2023-10-03

申请号：US17517463

申请日：2021-11-02

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Tae Woon Cha ,  Jie Li ,  Junhwan Lim ,  Xiaokai Li ,  Zhibing Ge ,  Guanjun Tan ,  Giovanni Carbone ,  Jose A. Dominguez-Caballero ,  Thanh Son Nguyen

IPC: H10K50/858 ,  G02F1/1335 ,  H10K59/38 ,  H10K59/35

CPC classification number: H10K50/858 ,  G02F1/133514 ,  G02F1/133526 ,  H10K59/353 ,  H10K59/38

Abstract: An electronic device may have a display with an array of display pixels. To increase the efficiency of the display, the display may also include an array of microlenses. Each microlens may overlap and focus light from a respective pixel. Pixels for one of the colors of light may have a high aspect ratio. These pixels may be covered by two microlenses or a single cylindrical microlens. The microlens dimensions may be tuned to mitigate non-uniformities in the brightness profiles of the pixels. The microlens edges may be laterally shifted towards or away from the center of the light-emitting areas to either reduce or increase the focusing power of the microlens. The microlenses and color filter elements in each pixel may also be shifted to account for the chief ray angle of the display.

公开(公告)号：US11693279B1

公开(公告)日：2023-07-04

申请号：US17683731

申请日：2022-03-01

Applicant: Apple Inc.

Inventor： Yunseok Lee ,  Haiqing Xianyu ,  Junhwan Lim ,  Peter F Masschelein ,  Sang Un Choi ,  Xiaokai Li ,  Yuan Chen ,  Zhibing Ge

IPC: G02F1/1339 ,  B60J3/04 ,  G02F1/137 ,  G02F1/1343

CPC classification number: G02F1/1339 ,  B60J3/04 ,  G02F1/13725 ,  G02F1/134309

Abstract: A system may have windows. The window may have first and second window layers and a layer of material such as guest-host liquid crystal material between the first and second window layers. Electrodes on the window layers may be used to apply electric fields to the guest-host liquid crystal material to adjust the light transmission properties of the window. To ensure that a desired gap between the first and second window layers is maintained, spacers may be formed between the first and second window layers. The spacers may include key-and-lock spacers that have interlocking portions located, respectively, on the first and second window layers. Spacers such as photoresist posts can be attached using adhesive. Hybrid arrangements may also be used in which key-and-lock spacer structures are attached using adhesive bonds.

公开(公告)号：US20190137333A1

公开(公告)日：2019-05-09

申请号：US16141183

申请日：2018-09-25

Applicant: Apple Inc.

Inventor： Junhwan Lim ,  Zhibing Ge ,  Christopher L. Boitnott ,  Shih-Wei Chang ,  Sang Un Choi ,  Sudirukkuge T. Jinasundera

IPC: G01J1/04 ,  G01J1/42 ,  G06F3/03 ,  G02F1/133 ,  G06F3/041 ,  G09G3/34

Abstract: An electronic device may be provided with a display. An optical component window may be formed in the inactive area of the display. The optical component window may transmit infrared light from an infrared light source. The infrared light source may include a diffuser to allow the light source to operate in a flood illumination mode and a structured light mode. The diffuser may include liquid crystal material between first and second substrates. A sealant may surround the liquid crystal layer, and one or more spacer walls may be located between the sealant and the liquid crystal layer. An additional spacer wall may be used outside of the sealant to prevent metal from creating an electrical short between electrodes in the diffuser. Conductive material in the sealant may be used to couple a top electrode to a metal pad on a bottom substrate.