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公开(公告)号：US20230197020A1
公开(公告)日：2023-06-22
申请号：US17988721
申请日：2022-11-16
Applicant: Apple Inc.
Inventor： Shengkui Gao , Jie Won Ryu , Kingsuk Brahma , Marc J DeVincentis , Mohammad Ali Jangda , Paolo Sacchetto , Weijun Yao , Yafei Bi , Yang Xu , Yue Jack Chu , Zhe Hua
CPC classification number: G09G3/3426 , G09G3/3611 , G09G2330/021 , G09G2360/16
Abstract: This disclosure provide various techniques for tracking emission profiles on an electronic display. An emission profile may be applied to the electronic display in order to illuminate certain pixels and deactivate (e.g., turn off) certain pixels in the electronic display to facilitate refreshing (e.g., programming with new image data) the deactivated pixels. A real-time row-based average pixel level or average pixel luminance calculation architecture may track the one or more EM profiles to accurately model EM profile behavior, which may enable accurate calculation of the average pixel level or average pixel luminance of the electronic display at any one point in time. The accurate average pixel level or average pixel luminance calculations effectuated by the EM profile tracking may be used to reduce the IR drop, improve real-time peak-luminance control, and improve the performance of under-display sensors, among other advantages.
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12.发明申请公开(公告)号：US20200243012A1
公开(公告)日：2020-07-30
申请号：US16283481
申请日：2019-02-22
Applicant: Apple Inc.
Inventor： Jiayi Jin , David A. Doyle , Kyung Hoae Koo , Maofeng Yang , Michael H. Lim , Paolo Sacchetto , Timothy M. Johnson , Venkatesh Rajendran , Weijun Yao , Yue Jack Chu
IPC: G09G3/3258 , G09G3/3266
Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may include a drive transistor coupled in series with one or more emission transistors and a respective organic light-emitting diode (OLED). A semiconducting-oxide transistor may be coupled between a drain terminal and a gate terminal of the drive transistor to help reduce leakage during low-refresh-rate display operations. To compensate for variations in the threshold voltage of the semiconducting-oxide transistor, the magnitude of a high voltage level of a scan control signal provided to the gate terminal of the semiconducting-oxide transistor may be adjusted. Sensing circuitry may be used to sense a display current while displaying a calibration image. The sensed display current may be compared to an expected display current associated with the calibration image. Processing circuitry may update the high voltage level based on the actual display current compared to the expected display current.
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13.发明授权公开(公告)号：US10573236B1
公开(公告)日：2020-02-25
申请号：US16283473
申请日：2019-02-22
Applicant: Apple Inc.
Inventor： Shengkui Gao , Graeme M. Williams , Haifeng Li , Mohammad Ali Jangda , Paolo Sacchetto , Pierre-Yves Emelie , Shyuan Yang , Sinan Alousi , Tsung-Ting Tsai , Warren S. Rieutort-Louis , Weijun Yao , Yafei Bi , Yue Jack Chu
IPC: G09G3/3233 , G09G3/20 , G09G3/3266
Abstract: A display may have an array of pixels. Due to the presence of a notch in the display, the display may have some rows that are shorter than other rows in the display, and accordingly different gate line loading. To account for the gate line loading variations, the display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. In other arrangement, luminance adjustment circuitry may receive image data and generate corresponding compensated image data to account for gate line loading variations between rows of pixels in the display. The image data may be compensated based on the location of the pixel, the gray level of the image data, the display brightness, and/or temperature.
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公开(公告)号：US12020648B2
公开(公告)日：2024-06-25
申请号：US18215722
申请日：2023-06-28
Applicant: Apple Inc.
Inventor： Kingsuk Brahma , Jie Won Ryu , Satish S Iyengar , Yue Jack Chu , Jongyup Lim
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G2320/0209
Abstract: Systems and methods are described here to compensate for crosstalk (e.g., coupling distortions) that may be caused by a fanout overlaid or otherwise affecting signals transmitted within an active area of an electronic display. The systems and methods may be based on buffered previous image data. Technical effects associated with compensating for the crosstalk may include improved display of image frames since some image artifacts are mitigated and/or made unperceivable or eliminated.
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公开(公告)号：US11740736B2
公开(公告)日：2023-08-29
申请号：US16436756
申请日：2019-06-10
Applicant: Apple inc.
Inventor： Anshi Liang , He Yi , Yang Xu , Paolo Sacchetto , Jun Li , Jingyu Huang , Marc Joseph DeVincentis , Yue Jack Chu
CPC classification number: G06F3/0418 , G06F3/044 , G06F3/046
Abstract: Techniques for implementing and/or operating an electronic device including a display pixel layer, which writes a display image during an active period and continues displaying the display image during a blanking period, and a touch sense layer, which generates a first touch image during the active period and a second touch image during the blanking period. The electronic device further includes a controller that determines a first noise metric indicative of display-to-touch noise resulting during the active period based on the first touch image, determines a second noise metric indicative of display-to-touch noise resulting during the blanking period based on the second touch image, and instructs the touch sense layer to not generate a third touch image during a subsequent active period in response to the first noise metric being greater than a noise threshold and the second noise metric not being greater than the noise threshold.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11081053B2
公开(公告)日：2021-08-03
申请号：US16283481
申请日：2019-02-22
Applicant: Apple Inc.
Inventor： Jiayi Jin , David A. Doyle , Kyung Hoae Koo , Maofeng Yang , Michael H. Lim , Paolo Sacchetto , Timothy M. Johnson , Venkatesh Rajendran , Weijun Yao , Yue Jack Chu
IPC: G09G3/3258 , G09G3/3266 , H01L29/786
Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may include a drive transistor coupled in series with one or more emission transistors and a respective organic light-emitting diode (OLED). A semiconducting-oxide transistor may be coupled between a drain terminal and a gate terminal of the drive transistor to help reduce leakage during low-refresh-rate display operations. To compensate for variations in the threshold voltage of the semiconducting-oxide transistor, the magnitude of a high voltage level of a scan control signal provided to the gate terminal of the semiconducting-oxide transistor may be adjusted. Sensing circuitry may be used to sense a display current while displaying a calibration image. The sensed display current may be compared to an expected display current associated with the calibration image. Processing circuitry may update the high voltage level based on the actual display current compared to the expected display current.
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17.发明申请公开(公告)号：US20210012711A1
公开(公告)日：2021-01-14
申请号：US16505556
申请日：2019-07-08
Applicant: Apple Inc.
Inventor： Ruo-Gu Huang , Kyung Hoae Koo , Michael H. Lim , Chuang Qian , Weijun Yao , Yue Jack Chu
IPC: G09G3/3233 , G09G3/3291
Abstract: A display driver is disclosed that reduces first frame dimming and flicker in light-emitting diode pixels of a display device. The display driver may receive a display brightness value and determine a value of a dynamic supply voltage parameter based on the display brightness value. Over a first time interval, the display driver may apply a supply voltage that is based on the dynamic supply voltage parameter to one of a gate of a drive transistor of a light-emitting-diode circuit and a channel of the drive transistor. Over a second time interval, the display driver may apply a parking voltage to an anode of a light-emitting diode of the light-emitting-diode circuit and to the channel of the drive transistor. The value of the parking voltage may be below a threshold voltage of the light-emitting diode and correspond to the value of the dynamic supply voltage parameter.
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公开(公告)号：US10825419B2
公开(公告)日：2020-11-03
申请号：US15716708
申请日：2017-09-27
Applicant: Apple Inc.
Inventor： Yue Jack Chu , Christopher P. Tann , Arthur L. Spence , Brad W. Simeral , Yafei Bi , Jiayi Jin , Ruo-Gu Huang , Haifeng Li , Weijun Yao , Chaohao Wang
Abstract: In situations with reduced image changes, display panels, such as the ones disclosed herein, may reduce their power consumption by performing self-refresh cycles, in which they may display locally stored data in the display panel instead of retrieving it from an image buffer. Methods and circuitry for management of the self-refresh cycle may reduce jitter, luminance errors, and/or flickers that may be caused by untimely self-refresh cycles that may occur as a result of latency in the image buffer. In some implementations, the display panel may have a dedicated low latency input that notifies an arrival of an incoming image. In some implementations, the self-refresh cycles of the panel may be managed by a host or a buffer that is responsible for sending the images.
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公开(公告)号：US20250008799A1
公开(公告)日：2025-01-02
申请号：US18667776
申请日：2024-05-17
Applicant: Apple Inc.
Inventor： Shyuan Yang , Abbas Jamshidi Roudbari , Gihoon Choo , Jae Won Choi , Jean-Pierre S. Guillou , Jonglo Park , Kyounghwan Kim , Ricardo A. Peterson , Sungki Lee , Ting-Kuo Chang , Tsung-Ting Tsai , Warren S. Rieutort-Louis , Yi Qiao , Yuchi Che , Yue Cui , Yue Jack Chu , Zhizhen Ma
IPC: H10K59/131 , H10K59/121 , H10K59/65
Abstract: A display may include an active area with a first region and a second region. The first region may overlap an input-output component such as a camera and may have a higher transparency than the second region. The first region may have a lower pixel density than the second region. Signal lines that pass through the first region may have transparent portions that overlap the first region and opaque portions that overlap the second region. To mitigate artifacts caused by high resistance of the transparent portions of the signal lines, the signal lines may include supplemental opaque portions that are electrically connected in parallel to the transparent portions and that are routed through the second region around the first region.
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公开(公告)号：US20240038176A1
公开(公告)日：2024-02-01
申请号：US18215722
申请日：2023-06-28
Applicant: Apple Inc.
Inventor： Kingsuk Brahma , Jie Won Ryu , Satish S Iyengar , Yue Jack Chu , Jongyup Lim
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G2320/0209
Abstract: Systems and methods are described here to compensate for crosstalk (e.g., coupling distortions) that may be caused by a fanout overlaid or otherwise affecting signals transmitted within an active area of an electronic display. The systems and methods may be based on buffered previous image data. Technical effects associated with compensating for the crosstalk may include improved display of image frames since some image artifacts are mitigated and/or made unperceivable or eliminated.
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