公开(公告)号：US20240045259A1

公开(公告)日：2024-02-08

申请号：US18328262

申请日：2023-06-02

Applicant: Apple Inc.

Inventor： Tao Zhan ,  Joshua A Spechler ,  Jun Qi ,  Ling Han ,  Rong Liu ,  Victor H Yin

IPC: G02F1/1335 ,  G02F1/137 ,  G02F1/1334

CPC classification number: G02F1/133504 ,  G02F1/13775 ,  G02F1/13718 ,  G02F1/1334 ,  G02F1/133512 ,  G02F1/133553 ,  G02F2203/12

Abstract: An electronic device may include a projection display that has a high transparency when the display is turned off. The high off-state transparency may create the appearance of the display being invisible in the off-state, which may be desirable in certain electronic devices. The projection display may include an adjustable diffuser, a spatial light modulator that projects images onto the adjustable diffuser, a mirror that reflects the images from the spatial light modulator to the adjustable diffuser, and a light source that provides light to the spatial light modulator. The projection display may also include an adjustable opacity layer that is controlled based on detected ambient light levels. The projection display may also include an adjustable reflectivity layer. The adjustable diffuser and/or light source may be pixelated to increase contrast in the projection display.

公开(公告)号：US20230361153A1

公开(公告)日：2023-11-09

申请号：US18180758

申请日：2023-03-08

Applicant: Apple Inc.

Inventor： Ziruo Hong ,  Ganghun Kim ,  Jun Qi ,  Rong Liu ,  Saijin Liu ,  Tongbi T. Jiang ,  Victor H. Yin

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/06 ,  H01L33/58

CPC classification number: H01L27/156 ,  H01L33/0066 ,  H01L33/06 ,  H01L33/58 ,  H01L2933/0091 ,  H01L2933/0058

Abstract: An electronic device may have one or more displays that produce images for a user. The display may include an array of light-emitting diodes. Each light-emitting diode in the array of light-emitting diodes may include a plurality of vias. The vias may be arranged in an array of rows and columns. The light-emitting diodes in the array may share a common cathode. The common cathode may include a conductive layer formed from a reflective material. The conductive layer may be formed in a grid that defines a plurality of openings for the light-emitting diodes or may be formed around the periphery of the array. The array may include light-emitting diodes of two different colors in a head-to-tail arrangement, connected in series, or that share a common cathode. The array may include light-emitting diodes of three different colors that are vertically stacked.

公开(公告)号：US11774642B2

公开(公告)日：2023-10-03

申请号：US17005199

申请日：2020-08-27

Applicant: Apple Inc.

Inventor： ByoungSuk Kim ,  Yi Huang ,  Jun Qi ,  Victor H. Yin ,  Seung Wook Kim ,  Nicolas V. Scapel ,  Yi-Pai Huang

IPC: G02B3/00 ,  G02B27/01 ,  G06F1/16 ,  H04N13/305 ,  H04N13/383 ,  G02B30/29 ,  G02B30/27 ,  G02F1/17 ,  H10K50/86 ,  H10K50/858 ,  H10K59/12

CPC classification number: G02B3/005 ,  G02B27/0172 ,  G02B30/27 ,  G02B30/29 ,  G02F1/17 ,  G06F1/1609 ,  H04N13/305 ,  H04N13/383 ,  H10K50/858 ,  H10K50/86 ,  H10K50/865 ,  H10K59/12 ,  G02B2027/0134 ,  G02B2027/0187 ,  G02B2207/123

Abstract: A lenticular display may be formed with convex curvature. The lenticular display may have a lenticular lens film with lenticular lenses that extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display. To enable more curvature in the display while ensuring satisfactory stereoscopic display performance, the display may have stereoscopic zones and non-stereoscopic zones. A central stereoscopic zone may be interposed between first and second non-stereoscopic zones. The non-stereoscopic zones may have more curvature than the stereoscopic zone. To prevent crosstalk within the lenticular display, a louver film may be incorporated into the display. The louver film may have a plurality of transparent portions separated by opaque walls. The opaque walls may control the emission angle of light from the display, reducing crosstalk. The louver film may be interposed between the lenticular lens film and the display panel.

公开(公告)号：US11740509B2

公开(公告)日：2023-08-29

申请号：US17203336

申请日：2021-03-16

Applicant: Apple Inc.

Inventor： David W. Lum ,  Kyung Wook Kim ,  Kwang Soon Park ,  Mingxia Gu ,  Jun Qi

IPC: G02F1/1335 ,  G02F1/13357 ,  H05B47/16 ,  H05B47/105 ,  H01L25/16 ,  G09G3/34

CPC classification number: G02F1/133612 ,  G02F1/133601 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133628 ,  G09G3/3426 ,  H01L25/167 ,  H05B47/105 ,  H05B47/16 ,  G09G2320/0626

Abstract: A pixel array may be illuminated with backlight illumination from a backlight. The backlight may include a two-dimensional array of light-emitting diodes, with each light-emitting diode being placed in a respective cell. Different light-emitting diodes may have unique brightness magnitudes based on the content of the given display frame. Driver integrated circuits may control one or more associated light-emitting diodes to have a desired brightness level. The driver integrated circuits may be formed in an active area of the backlight. The driver integrated circuits may be arranged in groups that are daisy chained together. A digital signal (that includes information such as addressing information) may be propagated through the group of driver integrated circuits. To manage thermal performance of the backlight, the backlight may include a thermally conductive layer and/or a heat sink structure. To increase the efficiency of the backlight, the backlight may include one or more reflective layers.

公开(公告)号：US11719978B2

公开(公告)日：2023-08-08

申请号：US17519221

申请日：2021-11-04

Applicant: Apple Inc.

Inventor： Zhenyue Luo ,  Meizi Jiao ,  Morteza Amoorezaei ,  Ling Han ,  Chungjae Lee ,  Ziruo Hong ,  Wei He ,  Rong Liu ,  Xinyu Zhu ,  Mingxia Gu ,  Jun Qi ,  Eric L. Benson ,  Victor H. Yin

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1333 ,  G06F1/16

CPC classification number: G02F1/133611 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133607 ,  G02F1/133608 ,  G02F1/133614 ,  G06F1/16 ,  G06F1/169 ,  G06F1/1662 ,  G02F2202/28

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 (LEDs) on a printed circuit board. The display may have a notch to accommodate an input-output component. Reflective layers may be included in the notch. The backlight may include a color conversion layer with a property that varies as a function of position. The light-emitting diodes may be covered by a slab of encapsulant with recesses in an upper surface.

公开(公告)号：US11536446B2

公开(公告)日：2022-12-27

申请号：US17349787

申请日：2021-06-16

Applicant: Apple Inc.

Inventor： Rong Liu ,  Andrew Baek ,  Ethan W. Juhnke ,  Eugene A. Whang ,  Gemma A. Roper ,  Glenn K. Trainer ,  Jia Chen Pang ,  Jun Qi ,  Ka Ho P. Poon ,  Michael C. Sulkis ,  Pedro Mari ,  Syed F. Mohiuddin ,  Victor H. Yin ,  Yu P. Sun

IPC: F21V33/00 ,  F21V14/02 ,  F21V3/04 ,  G06F3/16 ,  F21Y115/10

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：US11460169B1

公开(公告)日：2022-10-04

申请号：US17349782

申请日：2021-06-16

Applicant: Apple Inc.

Inventor： Rong Liu ,  Jun Qi ,  Victor H. Yin ,  Yu P. Sun ,  Meiting Wu ,  Paul J. Thompson

IPC: F21V7/09 ,  F21V14/02 ,  F21V33/00 ,  F21Y115/10

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. Some of the light-emitting components may be rotated to improve color balance. Optical structures such as a dual-shot injection molded light control plate may be disposed over the light-emitting components to promote light mixing, reduce hotspots, and improve contrast on the top cap. The light control plate may have an upper clear layer with bell-shaped cavity portions configured to help spread light in the lateral direction and may have a reflective lower layer with dish-shaped portions configured to reflect and diffuse light back towards the top cap. The surface of the dish-shaped portions may be provided with microtextured structures to help scatter light.

公开(公告)号：US11333924B1

公开(公告)日：2022-05-17

申请号：US17409473

申请日：2021-08-23

Applicant: Apple Inc.

Inventor： Wei Lv ,  Pee Khiam So ,  Wenyong Zhu ,  Daming Xu ,  Victor H. Yin ,  Mookyung Son ,  Ryan A. Zimmerman ,  Ziruo Hong ,  Rong Liu ,  Jun Qi ,  Po Hsun Chen ,  Zhenbin Ge ,  Fei Yan ,  Wei He

IPC: G02F1/13357 ,  G02F1/1335

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：US11294236B2

公开(公告)日：2022-04-05

申请号：US16891386

申请日：2020-06-03

Applicant: Apple Inc.

Inventor： Rong Liu ,  Yu P. Sun ,  Erik A. Zweigle ,  Jun Qi ,  Victor H. Yin ,  Ziruo Hong ,  Sungwon Bae

IPC: G02F1/133 ,  G02F1/13357 ,  F21K9/64 ,  F21K9/68 ,  G09G3/34 ,  G09G3/36

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：US20220059018A1

公开(公告)日：2022-02-24

申请号：US17406012

申请日：2021-08-18

Applicant: Apple Inc.

Inventor： Shatam Agarwal ,  Sean C. Chang ,  Hao-Lin Chiu ,  Fenghua Zheng ,  Pierre-Yves Emelie ,  Yao Chen ,  Marc Albrecht ,  Mingxia Gu ,  Jun Qi ,  Wei Chen

IPC: G09G3/32

Abstract: A light emitting diode (LED) display can calculate a common voltage charge of a line of pixels in the LED display, the common voltage charge comprising a difference between a first line of pixels and a second line of pixels. If the calculated common voltage charge exceeds a predetermined threshold, a toggle matrix can be generated for the line of pixels. The toggle matrix can include a matrix of charge values generated by calculating a difference in charge values for each subpixel a first line of subpixels with each subpixel a second line of subpixels. The LED display can identify one or more regions of subpixels exhibiting the predetermined toggle pattern in the toggle matrix. The LED display can generate a voltage correction charge to apply to affected regions of the display. Alternatively, the subpixels or pixels could be swapped with adjacent pixels to reduce toggling or settling error.