-
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：US20170090104A1
公开(公告)日：2017-03-30
申请号：US15014596
申请日：2016-02-03
Applicant: Apple Inc.
Inventor： Robert Y. Cao , Craig C. Leong , Bradford J. Zercoe , Dinesh C. Mathew , Mahesh Krishnamurthi , Jun Qi , Rong Liu , Victor H. Yin
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：US12013609B2
公开(公告)日：2024-06-18
申请号：US18156286
申请日：2023-01-18
Applicant: Apple Inc.
Inventor： Daming Xu , Yufeng Yan , Qingbing Wang , Chenhua You , Rong Liu , Jun Qi , Zhenyue Luo , Mookyung Son , Victor H. Yin
IPC: G02F1/13357 , G02F1/1335
CPC classification number: G02F1/133603 , G02F1/133606 , G02F1/133608 , G02F1/133611 , G02F1/133612 , G02F1/133614
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：US20230378405A1
公开(公告)日：2023-11-23
申请号：US18182118
申请日：2023-03-10
Applicant: Apple Inc.
Inventor： Yu P Sun , Jun Qi , Rong Liu , Ziruo Hong , Victor H Yin , Tao Zhan , Yong Seok Choi
IPC: H01L33/58 , H01L25/075 , B60Q1/50
CPC classification number: H01L33/58 , H01L25/0753 , B60Q1/5035 , G02B5/0284
Abstract: A system may have an external display that presents content to viewers outside of the system. The external display may have a display panel with an array of pixels formed from light-emitting diodes. Optical films that help collimate and homogenize light from the light-emitting diode pixels may overlap the light-emitting diodes. A transparent cover may overlap the display. The transparent cover may have an outer surface and an opposing inner surface. The outer surface and inner surface may be planar or may have a curved cross-sectional profile. An optical louver layer or other solar rejection layer may be interposed between the inner surface of the transparent cover and the display panel. The louver layer may have a series of elongated parallel louvers formed from an opaque polymer or other material. The louvers may be configured to block sunlight reflections while allowing images on the display panel to be viewed.
-
公开(公告)号：US20230205002A1
公开(公告)日：2023-06-29
申请号：US18156286
申请日：2023-01-18
Applicant: Apple Inc.
Inventor： Daming Xu , Yufeng Yan , Qingbing Wang , Chenhua You , Rong Liu , Jun Qi , Zhenyue Luo , Mookyung Son , Victor H. Yin
IPC: G02F1/13357 , G02F1/1335
CPC classification number: G02F1/133603 , G02F1/133606 , G02F1/133608 , G02F1/133611 , G02F1/133612 , G02F1/133614
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.
-
Patent Agency Ranking
公开(公告)号：US11460622B1
公开(公告)日：2022-10-04
申请号：US17351099
申请日：2021-06-17
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
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：US11054696B2
公开(公告)日：2021-07-06
申请号：US16629537
申请日：2018-08-09
Applicant: Apple Inc.
Inventor： Rong Liu , Jun Qi , Victor H. Yin , Zhenyue Luo
IPC: F21V21/00 , G02F1/13357 , G02F1/1335
Abstract: An array of pixels in a display may be illuminated by a backlight having an array of light sources such as light-emitting diodes. The light-emitting diodes may be mounted on a printed circuit. A reflector may be formed on the printed circuit to help reflect light from the light-emitting diodes upwards through the pixels. The reflector may include two white ink layers. Multifunctional layers and other optical films may be incorporated into the backlight. These layers may include diffusers, microlens array layers, thin-film interference filters, phosphor layers, light-collimating layers, and reflective polarizers.
-
公开(公告)号：US11024255B2
公开(公告)日：2021-06-01
申请号：US16406076
申请日：2019-05-08
Applicant: Apple Inc.
Inventor： Gabriel Marcu , Rong Liu
IPC: G09G5/02
Abstract: A display panel is calibrated to a target white point. A maximum luminance value of the display panel is attenuated from a first luminance value associated with the target white point to a second luminance value based on an attenuation factor. The second luminance value is equal to or lower than the first luminance value. The display panel is re-calibrated based on a chromaticity of the target white point and the second luminance value to generate calibration data. The calibration data is flashed into memory associated with the display panel. During operation, the white point of the panel may be shifted from the target to a chromatically imbalanced (e.g., reddish) white point that may cause motion-induced color trail or color breakup artifacts. The attenuated second luminance value ensures the motion-induced color trail or color breakup artifacts are adequately masked when the panel is driven with the chromatically imbalanced white point.
-
公开(公告)号：US11022840B2
公开(公告)日：2021-06-01
申请号：US16409567
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Rong Liu , Yu P. Sun , Abdeslam Hafidi , Erik A. Zweigle , Jun Qi , Mingxia Gu , Victor H. Yin , Xiangtong Li , Yanming Li , Yi Huang , Ziruo Hong
IPC: G02F1/1335 , G02F1/13357
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 cells. A reflector is used to reflect light from the light-emitting diodes through the array of pixels. Within the cells, the reflector has cross-sectional profiles that help distribute light emitted from the light-emitting diodes toward edges of the cells. A light diffuser layer for the backlight may have a partially reflective layer such as a thin-film interference filter with an angularly dependent transmission. Within each cell, the reflector may have cross-sectional profiles with portions that are parabolic or elliptical.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
66
records
(took 0.018 seconds)
