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公开(公告)号：US10089931B2
公开(公告)日：2018-10-02
申请号：US14990701
申请日：2016-01-07
Applicant: Apple Inc.
Inventor： Koorosh Aflatooni , Yafei Bi , Hung Sheng Lin , Mohammad Ali Jangda
IPC: G09G3/32 , G09G3/20 , G09G3/3258 , H03M1/72 , H03M1/76
Abstract: An electronic device that includes a display is provided. The display may have a brightness that is controlled using a series of cascaded digital-to-analog converter circuits. The display may be calibrated at a series of predetermined display brightness settings. For display brightness settings that fall between two consecutive display brightness settings in the series of predetermined display brightness settings, voltage interpolation operations may be performed to obtain the corresponding display brightness settings. Performing voltage interpolations instead of digital brightness setting interpolation helps minimize luminance jumps and unexpected color shifts when adjusting the brightness of the display.
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公开(公告)号：US12230191B2
公开(公告)日：2025-02-18
申请号：US18076363
申请日：2022-12-06
Applicant: Apple Inc.
Inventor： Wanqing Xin , Yang Xu , Mohammad Ali Jangda , Jenny Hu , Koorosh Aflatooni , Giovanni Corradini , Martin Kocicka , Alexey Kornienko , Asha G Karvaje , Aishwarya Prem Renu , Andrew D Pangborn , Chaohao Wang , Yingying Tang , Arthur L Spence , Mahesh B Chappalli
IPC: G09G3/32
Abstract: Systems and methods are described herein to control brightness based on image content or other inputs to a display system. A dual-control system may integrate both slow control operations and fast control operations into a cohesive brightness management system. By using both shorter-term (e.g., fast control) and longer-term (e.g., slow control) brightness adjustment operations, the electronic device may quickly respond to high luminance and high brightness situations that may cause burn-in into the display, image artifacts, or other damage. Responding quickly to these high consumption situations may prevent damage or perceivable upset to an ongoing process, among other benefits.
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公开(公告)号：US20240078961A1
公开(公告)日：2024-03-07
申请号：US18076363
申请日：2022-12-06
Applicant: Apple Inc.
Inventor： Wanqing Xin , Yang Xu , Mohammad Ali Jangda , Jenny Hu , Koorosh Aflatooni , Giovanni Corradini , Martin Kocicka , Alexey Kornienko , Asha G Karvaje , Aishwarya Prem Renu , Andrew D Pangborn , Chaohao Wang , Yingying Tang , Arthur L Spence , Mahesh B Chappalli
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2320/0295 , G09G2320/046 , G09G2320/0613 , G09G2320/0626 , G09G2320/103 , G09G2330/023 , G09G2360/144 , G09G2360/16
Abstract: Systems and methods are described herein to control brightness based on image content or other inputs to a display system. A dual-control system may integrate both slow control operations and fast control operations into a cohesive brightness management system. By using both shorter-term (e.g., fast control) and longer-term (e.g., slow control) brightness adjustment operations, the electronic device may quickly respond to high luminance and high brightness situations that may cause burn-in into the display, image artifacts, or other damage. Responding quickly to these high consumption situations may prevent damage or perceivable upset to an ongoing process, among other benefits.
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公开(公告)号：US11580934B2
公开(公告)日：2023-02-14
申请号：US17741138
申请日：2022-05-10
Applicant: Apple Inc.
Inventor： Koorosh Aflatooni , Minhyuk Choi , Mohammad Ali Jangda , Sang Y. Youn , Yafei Bi , Jean-Pierre Guillou , Wei H. Yao
Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.
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公开(公告)号：US20200035202A1
公开(公告)日：2020-01-30
申请号：US16584807
申请日：2019-09-26
Applicant: Apple Inc.
Inventor： Koorosh Aflatooni , Minhyuk Choi , Mohammad Ali Jangda , Sang Y. Youn , Yafei Bi , Jean-Pierre Guillou , Wei Y. Yao
Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.
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Patent Agency Ranking
公开(公告)号：US20190073962A1
公开(公告)日：2019-03-07
申请号：US15989066
申请日：2018-05-24
Applicant: Apple Inc.
Inventor： Koorosh Aflatooni , Warren S. Rieutort-Louis , Jean-Pierre S. Guillou , Pierre-Yves Emelie , Myung-Je Cho , Marc Albrecht , Graeme M. Williams , Sean C. Chang , Zhao Wang
IPC: G09G3/3275
Abstract: A display may have an active area that includes display pixels. The display may include an inactive notch region that extends into the active area. Data lines may provide image data from display driver circuitry to the display pixels. The image data may include data signals that correspond to portions of the display that do not include pixels, such as the inactive notch region. The null data signals may cause nonuniformities in the displayed image. The null data signals may be adjusted to minimize the nonuniformities. Null data signals corresponding to the inactive notch region may be adjusted to have gray levels that gradually decrease with distance from the border between the inactive notch and the active area. All of the data signals corresponding to the inactive notch may be set to a uniform gray level.
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公开(公告)号：US20190066569A1
公开(公告)日：2019-02-28
申请号：US15967892
申请日：2018-05-01
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Sheng Zhang , Yunhui Hou , Paolo Sacchetto , Koorosh Aflatooni , Gokhan Avkarogullari , Guy Cote , Mahesh B. Chappalli , Peter F. Holland
Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
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公开(公告)号：US10163388B2
公开(公告)日：2018-12-25
申请号：US14936343
申请日：2015-11-09
Applicant: Apple Inc.
Inventor： Yifan Zhang , Paul S. Drzaic , Chieh-Wei Chen , Jean-Pierre S. Guillou , Koorosh Aflatooni
IPC: G09G3/3208 , G09G3/20
Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history and temperature measurements.
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公开(公告)号：US10068548B1
公开(公告)日：2018-09-04
申请号：US15614294
申请日：2017-06-05
Applicant: Apple Inc.
Inventor： Jim Chou , Koorosh Aflatooni , Marc Albrecht , Myung-Je Cho , Hyunwoo Nho , Christopher P. Tann , Mahesh B. Chappalli , Guy Côté
Abstract: Systems and methods for improving perceived image quality of an electronic display, which includes a co-located sub-pixel that controls luminance of a first color component and an offset sub-pixel that controls luminance of a second color component. A display pipeline communicatively coupled to the electronic display determines image data, which indicates target luminance of the first, the second, and a third color component at an image pixel; determines edge parameters, which indicate whether an edge is expected to be present at the offset sub-pixel, based on a difference metric between a first image pixel block around the offset sub-pixel and a second image pixel block offset from the first image pixel block; and determines offset sub-pixel image data by filtering an image pixel group around the offset sub-pixel based at least in part on the edge parameters, wherein the offset sub-pixel image data indicates target luminance of the offset sub-pixel.
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公开(公告)号：US20160284275A1
公开(公告)日：2016-09-29
申请号：US14990701
申请日：2016-01-07
Applicant: Apple Inc.
Inventor： Koorosh Aflatooni , Yafei Bi , Hung Sheng Lin , Mohammad Ali Jangda
CPC classification number: G09G3/3258 , G09G3/2007 , G09G2310/027 , G09G2320/0606 , G09G2320/0626 , G09G2320/0653 , G09G2320/0673 , G09G2320/0693 , G09G2320/08 , G09G2330/021 , G09G2360/144 , G09G2360/16 , H03M1/72 , H03M1/765
Abstract: An electronic device that includes a display is provided. The display may have a brightness that is controlled using a series of cascaded digital-to-analog converter circuits. The display may be calibrated at a series of predetermined display brightness settings. For display brightness settings that fall between two consecutive display brightness settings in the series of predetermined display brightness settings, voltage interpolation operations may be performed to obtain the corresponding display brightness settings. Performing voltage interpolations instead of digital brightness setting interpolation helps minimize luminance jumps and unexpected color shifts when adjusting the brightness of the display.
Abstract translation: 提供了一种包括显示器的电子设备。 显示器可以具有使用一系列级联的数模转换器电路来控制的亮度。 可以在一系列预定的显示亮度设置校准显示。 对于在一系列预定显示亮度设置中落在两个连续显示亮度设置之间的显示亮度设置，可以执行电压内插操作以获得相应的显示亮度设置。 执行电压内插而不是数字亮度设置插值有助于在调整显示屏的亮度时最大限度地减少亮度跳跃和意外的色彩偏移。
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