-
公开(公告)号：US10739638B2
公开(公告)日：2020-08-11
申请号：US16409688
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Rong Liu , Yu P. Sun , Erik A. Zweigle , Jun Qi , Victor H. Yin , Ziruo Hong , Sungwon Bae
Abstract: An electronic device may have a display with a backlight. The backlight provides backlight illumination for an array of pixels that is displaying images. The backlight may include an array of cells. Each cell may contain a light source with one or more light-emitting diodes and a cavity reflector that reflects light from the light source outwardly through a diffuser for use in forming the backlight illumination. The light sources may be mounted to a printed circuit. Support posts on the printed circuit may be used to maintain the diffuser at a fixed distance from the printed circuit. Sensors on the printed circuit may be 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.
-
公开(公告)号：US20180059482A1
公开(公告)日：2018-03-01
申请号：US15356084
申请日：2016-11-18
Applicant: Apple Inc.
Inventor： Xiangtong Li , Jun Qi , Mingxia Gu , Rong Liu , Victor H. Yin , Yu P. Sun
CPC classification number: G02F1/133606 , F21V3/10 , F21V9/30 , G02F1/133509 , G02F1/133603 , G02F1/133605 , G02F2001/133614 , G02F2203/055
Abstract: An array of pixels in a display may be illuminated by a backlight having an array of light-emitting diodes in an array of respective light-emitting diode cells. A cavity reflector in each cell may help distribute blue light emitted from the light-emitting diode of that cell toward edges of the cell. Optical films in the backlight may include a photoluminescent layer such as a phosphor layer that converts blue light from the light-emitting diode array into white light and may include a dichroic filter for reflecting white light away from the diode array towards the pixel array. A light diffuser layer for the backlight may have printed white ink pads, recesses filled with a high index of refraction material, protrusions for light scattering, light-scattering particles, thin-film interference filters, partially reflective mirrors, and other structures for diffusing the light from the light-emitting diodes.
-
公开(公告)号：US10969628B1
公开(公告)日：2021-04-06
申请号：US15988978
申请日：2018-05-24
Applicant: Apple Inc.
Inventor： Erik A. Zweigle , Yu P. Sun , Ziruo Hong , Victor H. Yin , Eric L. Benson , Rong Liu , Mingxia Gu , Robert J. Durand , Wr Jamarulan Wr Ramli
IPC: G02F1/13357 , G02F1/1333 , G02F1/1335
Abstract: An electronic device may have a display with a backlight. The backlight provides backlight illumination for an array of pixels that is displaying images. The backlight may include an array of cells. Each cell may contain a light source with one or more light-emitting diodes and a cavity reflector that reflects light from the light source outwardly through a diffuser for use in forming the backlight illumination. The light sources may be mounted to a printed circuit. Support posts on the printed circuit may be used to maintain the diffuser at a fixed distance from the printed circuit. The support posts may have opposing first and second ends. The first ends may be attached to the diffuser with fixed connections such as adhesive connections. The second ends may be attached to the printed circuit using floating connections.
-
公开(公告)号：US10901260B2
公开(公告)日：2021-01-26
申请号：US16294732
申请日：2019-03-06
Applicant: Apple Inc.
Inventor： Rong Liu , Jun Qi , Victor H. Yin , Wei Lv , Joshua A. Spechler , Yu P. Sun , Suraj P. Gorkhali , Daming Xu , Edward H. Kang , Wenyong Zhu , Ziruo Hong , Xinyu Zhu , Ling Han , Mookyung Son , Pee Khiam So , Janos C. Keresztes , Chenhua You , Zhenyue Luo , Heesang Suh , Juan He , Hung Sheng Lin
IPC: G02F1/13357 , H05K1/02 , H05K1/18 , H05K3/22 , H05K3/34 , F21K9/64 , H01L25/075 , H01L33/54 , H01L33/62 , H01L33/64 , F21Y115/10
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 backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.
-
公开(公告)号：US10802336B2
公开(公告)日：2020-10-13
申请号：US16294715
申请日：2019-03-06
Applicant: Apple Inc.
Inventor： Rong Liu , Ling Han , Daming Xu , Janos C. Keresztes , Joshua A. Spechler , Jun Qi , Victor H. Yin , Yu P. Sun , Ziruo Hong , Wei Lv , Suraj P. Gorkhali , Mookyung Son
IPC: G02F1/1335 , F21K9/64 , G02F1/13357 , H05K1/02 , H05K1/18 , H05K3/22 , H05K3/34 , H01L25/075 , H01L33/54 , H01L33/62 , H01L33/64 , F21Y115/10
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 backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.
-
Patent Agency Ranking
公开(公告)号：US20190285941A1
公开(公告)日：2019-09-19
申请号：US16294715
申请日：2019-03-06
Applicant: Apple Inc.
Inventor： Rong Liu , Ling Han , Daming Xu , Janos C. Keresztes , Joshua A. Spechler , Jun Qi , Victor H. Yin , Yu P. Sun , Ziruo Hong , Wei Lv , Suraj P. Gorkhali , Mookyung Son
IPC: G02F1/1335 , F21K9/64
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 backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.
-
公开(公告)号：US20190265551A1
公开(公告)日：2019-08-29
申请号：US16409688
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Rong Liu , Yu P. Sun , Erik A. Zweigle , Jun Qi , Victor H. Yin , Ziruo Hong , Sungwon Bae
Abstract: An electronic device may have a display with a backlight. The backlight provides backlight illumination for an array of pixels that is displaying images. The backlight may include an array of cells. Each cell may contain a light source with one or more light-emitting diodes and a cavity reflector that reflects light from the light source outwardly through a diffuser for use in forming the backlight illumination. The light sources may be mounted to a printed circuit. Support posts on the printed circuit may be used to maintain the diffuser at a fixed distance from the printed circuit. Sensors on the printed circuit may be 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.
-
公开(公告)号：US20240250077A1
公开(公告)日：2024-07-25
申请号：US18177593
申请日：2023-03-02
Applicant: Apple Inc.
Inventor： Yu P. Sun , Caijie Yan , Jared M. Kole , Jia Chen Pang , Jun Qi , Ka Ho P. Poon , Lindsay M. Epstein , Pulkit Verma , Rong Liu , Syed F. Mohiuddin , Victor H. Yin , Zhongnan Hu
CPC classification number: H01L25/167 , H01L33/483 , H01L33/64
Abstract: An electronic device such as a voice-controlled speaker device may have a cylindrical shape. The electronic device may include a housing, a speaker in the housing configured to emit sound, and a display in the housing. The display may include a substrate, light-emitting components mounted on the substrate, an opaque support structure mounted on the substrate, a diffuser that is mounted to the opaque support structure and that overlaps the light-emitting components, a display cover layer that overlaps the diffuser, and foam that is interposed between the opaque support structure and the display cover layer. The light-emitting components may be arranged in groups that have the same layout and orientations that vary as a function of angular position relative to the center of the display. The foam and/or an adhesive layer may be formed from two or more discrete pieces that have footprints with complementary protrusions.
-
公开(公告)号：US11346542B2
公开(公告)日：2022-05-31
申请号：US16882307
申请日：2020-05-22
Applicant: Apple Inc.
Inventor： Janos C. Keresztes , Yu P. Sun , Rong Liu , Chungjae Lee , Ka Ho P. Poon , Brian P. Graves , Jun Qi , Victor H. Yin , Joel C. Yamasaki , Pedro Mari
Abstract: An electronic device includes a housing, a speaker, control circuitry, a plurality of light-emitting components configured to emit light through an upper housing wall or other housing structure. A lens diffuser layer having lenses overlapping respective light-emitting components, a textured diffuser layer formed from textured coatings on a substrate, and a volume diffuser layer having light-scattering structures in a polymer layer might be included to project light from the light-emitting components. A light-guiding portion of the lens diffuser layer may guide light to a circular peripheral edge to form an illuminated ring visible through the upper housing wall.
-
公开(公告)号：US11036082B2
公开(公告)日：2021-06-15
申请号：US16422730
申请日：2019-05-24
Applicant: Apple Inc.
Inventor： Rong Liu , Yu P. Sun , Victor H. Yin , Jun Qi , Ziruo Hong
IPC: G02F1/13357 , G02F1/1335 , G02F1/1333 , F21V8/00
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 backlight unit. The backlight unit may include an array of light-emitting diodes and a light reflector that helps reflect light from the light-emitting diodes through the pixel array. A color conversion layer may be used to convert light from the light-emitting diodes from blue light to white light. A microlens array layer formed over the color conversion layer may spread the light from the color conversion layer to homogenize the light. To ensure light is emitted from the backlight with a uniform color, the microlens array layer may have different transmittance portions. A central portion of the microlens array layer may transmit more light and reflect less light than an edge portion of the microlens array layer.
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.015 seconds)
