公开(公告)号：EP3338291A1

公开(公告)日：2018-06-27

申请号：EP16778593.0

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： CAO, Robert Y. ,  LEONG, Craig C. ,  ZERCOE, Bradford J. ,  MATHEW, Dinesh C. ,  KRISHNAMURTHI, Mahesh ,  YIN, Victor H. ,  QI, Jun ,  LIU, Rong

IPC: H01H13/83

CPC classification number: G02B6/0061 ,  G02B6/0038 ,  G02B6/0045 ,  G06F1/1662 ,  H01H13/023 ,  H01H13/14 ,  H01H13/7065 ,  H01H13/83 ,  H01H2219/056 ,  H01H2219/06 ,  H01H2219/062 ,  H01H2219/0622

Abstract: Described is an illumination structure for a key of a keyboard. The illumination structure is used to uniformly illuminate the key and any glyphs that are present on the key. The illumination structure includes a light guide having various features that increase total internal reflection and also illuminate the glyphs of the key.

公开(公告)号：EP3978994A1

公开(公告)日：2022-04-06

申请号：EP21210260.2

申请日：2018-03-16

Applicant: Apple Inc.

Inventor： LIU, Rong ,  SUN, Yu P. ,  ZWEIGLE, Erik A. ,  QI, Jun ,  YIN, Victor H. ,  HONG, Ziruo ,  BAE, Sungwon

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An electronic device may have a display with a backlight (42). The backlight provides backlight illumination for an array of pixels (24) that is displaying images. The backlight includes an array of cells (38C). Each cell contains a light source (38) with one or more light-emitting diodes (38D) and a cavity reflector (68) that reflects light from the light source outwardly through a diffuser (34) for use in forming the backlight illumination. The light sources are mounted to a printed circuit (60). Support posts (90) on the printed circuit are used to maintain the diffuser at a fixed distance (H) from the printed circuit. Sensors (104) on the printed circuit are used to measure separation distances between the printed circuit and diffuser. Adjustments to pixel gain profiles can be made based on the measured separation distances to maintain uniform illumination.

公开(公告)号：EP3356906A1

公开(公告)日：2018-08-08

申请号：EP16770590.4

申请日：2016-08-25

Applicant: Apple Inc.

Inventor： YIN, Victor H. ,  SILVANTO, Mikael M. ,  MATHEW, Dinesh C.

IPC: G06F1/16

CPC classification number: G06F1/1605 ,  G06F1/1686 ,  G06F1/1688

Abstract: An electronic device may be provided with a display. The display may be formed from liquid crystal display pixels, organic light-emitting diode pixels, or other pixels. The display may have an active area that is bordered along at least one edge by an inactive area. The active area contains pixels and displays images. The inactive area does not contain any pixels and does not display images. The inactive area may have a layer of black ink or other masking material to block internal components from view. The active area may have an opening that contains an isolated portion of the inactive area or may contain a recess into which a portion of the inactive area protrudes. An electrical component such as a speaker, camera, light-emitting diode, light sensor, or other electrical device may be mounted in the inactive area in the recess or opening of the active area.

公开(公告)号：EP4325284A3

公开(公告)日：2024-05-15

申请号：EP23218423.4

申请日：2021-09-27

Applicant: Apple Inc.

Inventor： XU, Daming ,  LV, Wei ,  SO, Pee Khiam ,  ZHU, Wenyong ,  LIU, Rong ,  YIN, Victor H. ,  SON, Mookyung ,  QI, Jun ,  YAN, Yufeng ,  LIU, Shaofeng ,  HENRY, Thomas ,  GORKHALI, Suraj

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133603 ,  G02F1/133608 ,  G02F1/133614 ,  G02F1/133606 ,  G02F2201/50320130101 ,  G02F1/133317 ,  G02F1/133611 ,  G02F2202/2820130101

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

公开(公告)号：EP3952327A1

公开(公告)日：2022-02-09

申请号：EP21189852.3

申请日：2021-08-05

Applicant: Apple Inc.

Inventor： LIU, Rong ,  BAEK, Andrew ,  JUHNKE, Ethan W. ,  WHANG, Eugene A. ,  ROPER, Gemma A. ,  TRAINER, Glenn K. ,  PANG, Jia Chen ,  QI, Jun ,  POON, Ka Ho ,  SULKIS, Michael C. ,  MARI, Pedro ,  MOHIUDDIN, Syed F. ,  YIN, Victor H. ,  SUN, Yu P.

IPC: H04R1/02 ,  H04R3/00

Abstract: An electronic device such as a voice-controlled speaker device may have a housing. A speaker and other input-output components and control circuitry may be mounted within the housing. Light-emitting components may emit light that passes through a curved upper top cap portion or other housing structure. The light-emitting components may be interconnected using a flex circuit on a curved substrate or may be mounted on a planar circuit board. A subset of the light-emitting components may be rotated to improve color balance. Optical structures such as light guides, lens, microlenses, and/or a diffuser layer may be disposed over the light-emitting components to promote light mixing, to reduce hotspots, and to improve contrast on the top cap. The diffuser layer may be suspended using a support structure having baffle members to constraint the angular spread of the emitted light. Illuminated or persistently visible glyphs may be displayed in or near the top cap portion.

公开(公告)号：EP2443508A1

公开(公告)日：2012-04-25

申请号：EP10721607.9

申请日：2010-05-27

Applicant: Apple Inc.

Inventor： QI, Jun ,  YIN, Victor H. ,  ZHONG, John Z. ,  CHEN, Wei

IPC: G02F1/13357 ,  F21V8/00 ,  G02B6/00

CPC classification number: G02B6/0053 ,  G02B6/0036 ,  G02B6/0061

Abstract: An edge-lit backlight unit for a display is provided. In one embodiment, the backlight unit may include a light guide configured to receive light from a source and emit such light in a broad distribution to a turning film disposed over the light guide. The turning film may be configured to redirect light received from the light guide toward a normal of the turning film. In one embodiment, the light guide may be configured such that peak light distribution therefrom occurs at an incident angle of approximately sixty degrees, with broad light distribution substantially occurring over an angular range between incident angles of thirty-five and eighty-five degrees. Additionally, in one embodiment, the turning film may include multiple prisms that receive and redirect the light emitted from the light guide, and that include apex angles of less than or about sixty degrees. Additional edge-lit backlight units and methods are also disclosed.