公开(公告)号：US20240331611A1

公开(公告)日：2024-10-03

申请号：US18596520

申请日：2024-03-05

Applicant: Apple Inc.

Inventor： Hyunwoo Nho ,  Jie Won Ryu ,  Patrick R. Cruce ,  Yao Shi ,  Nicolas Le Dortz ,  Wei Xiong ,  Hyunsoo Kim ,  Wei H. Yao ,  Sun-Il Chang ,  Kingsuk Brahma ,  Ionut A. Mirel ,  Mahesh B. Chappalli ,  Ruicong Chen

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2096 ,  G09G3/2007 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0266 ,  G09G2330/021 ,  G09G2360/16

Abstract: Embodiments herein provide various apparatuses and techniques to efficiently mitigate front-of-screen (FoS) artifacts that may occur due to voltage fluctuations due to alternating current (AC) or direct current (DC) mechanisms that may occur in a variety of pixel types. In one embodiment, emission profile awareness circuitry may be implemented to mitigate for FoS artifacts due to DC mechanisms. Two-dimensional (2D) digital compensation circuitry may address the DC portion of the voltage fluctuations by accounting for an emission profile applied to content displayed on an electronic display. In some embodiments, the 2D digital compensation circuitry may compensate for the AC portion of the voltage fluctuations by duplicating the AC voltage fluctuations via voltage error subtraction circuitry and voltage error accumulation circuitry.

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.

公开(公告)号：US20240038154A1

公开(公告)日：2024-02-01

申请号：US18355342

申请日：2023-07-19

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Ing-Jye Wang ,  Alex H Pai ,  Alexandre V Gauthier ,  Ardra Singh ,  Arthur L Spence ,  Gihoon Choo ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jenny Hu ,  Graeme M Williams ,  Jongyup Lim ,  Kingsuk Brahma ,  Marc J DeVincentis ,  Peter F Holland ,  Shawn P Hurley

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2340/0435 ,  G09G2320/0266 ,  G09G2320/0626 ,  G09G2310/08

Abstract: An electronic device may include processing circuitry configured to generate a first frame of image content and a second frame of image content. The second frame of image content is different from the first frame of image content. The electronic device may also include a display configured to display the first frame of image content at a first refresh rate. In response to receiving the second frame of image content, the electronic device may initially increase the refresh rate before tapering back to the first refresh rate while displaying the second frame of image content.

公开(公告)号：US20240029625A1

公开(公告)日：2024-01-25

申请号：US18217028

申请日：2023-06-30

Applicant: Apple Inc.

Inventor： Saman Saeedi ,  Hyunwoo Nho ,  Myungjoon Choi ,  Jie Won Ryu ,  Kyung Wook Kim ,  Vehbi Calayir ,  Kingsuk Brahma ,  Jason N Gomez ,  Kwang Soon Park

IPC: G09G3/20 ,  G06F3/041 ,  G09G3/32

CPC classification number: G09G3/2096 ,  G06F3/0418 ,  G09G3/32 ,  G09G2310/0224 ,  G09G2360/18 ,  G09G2310/0202 ,  G09G2320/0266 ,  G09G2310/08

Abstract: Systems and methods for programming an electronic display in a double-row manner are provided. A system may include processing circuitry that generates image data and an electronic display that programs multiple rows of display pixels with different pixel data of the image data at the same time. This may allow double-row interlaced driving to reduce or eliminate image artifacts due to intra-frame pauses.

公开(公告)号：US20240013693A1

公开(公告)日：2024-01-11

申请号：US18296937

申请日：2023-04-06

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Kingsuk Brahma ,  Qing Li ,  Shawn P. Hurley ,  Ce Zhang ,  Warren S Rieutort-Louis ,  Feng Wen ,  Marc J. DeVincentis ,  Zhe Hua ,  Hyunwoo Nho

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2340/0435 ,  G09G2310/08 ,  G09G2330/021

Abstract: This disclosure is directed towards systems and methods of power saving in electronic displays based on changing clock signal frequencies supplied to the gate-in-panel (GIP) circuitry during extended blanking modes of the electronic display. The display driver circuitry of the display may reduce and/or halt clock signal frequencies sent to GIP circuitry in the display, to reduce power output during extended blanking modes of the electronic display.

公开(公告)号：US11756505B2

公开(公告)日：2023-09-12

申请号：US17217827

申请日：2021-03-30

Applicant: Apple Inc.

Inventor： Yang Xu ,  Jie Won Ryu ,  Kingsuk Brahma ,  Koorosh Aflatooni ,  Marc Joseph DeVincentis ,  Mohammad Ali Jangda ,  Paolo Sacchetto ,  Shengkui Gao ,  Sinan Alousi ,  Yafei Bi ,  Chun Lu

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2320/0233 ,  G09G2320/0633 ,  G09G2340/16 ,  G09G2360/141

Abstract: Systems, methods, and devices are provided for providing intra-frame luminance scaling to avoid drawing excessive power while still providing exceptional brightness. An instantaneous average pixel luminance of an electronic display may be determined. The instantaneous average pixel luminance may correspond to an amount of light currently being emitted by the electronic display due to a previous image frame and a current image frame. Based at least in part on the instantaneous average pixel luminance, the luminance of a subset of pixels of image data of the current image frame may be adjusted, thereby allowing the electronic display to operate at a relatively high brightness level without exceeding a power limit.

公开(公告)号：US11380231B2

公开(公告)日：2022-07-05

申请号：US16644932

申请日：2018-08-31

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Injae Hwang ,  Jesse A. Richmond ,  Jie Won Ryu ,  Junhua Tan ,  Kavinaath Murugan ,  Kingsuk Brahma ,  Shengkui Gao ,  Shiping Shen ,  Sun-Il Chang ,  Myung-Je Cho ,  Yafei Bi ,  Myungjoon Choi ,  Weichuan Yao ,  Chaohao Wang

IPC: G09G3/00 ,  G09G3/3208

Abstract: Electronic devices and methods for compensating for aging or other effects in a display during a non-transmitting state (off state) of the display. Sensing may include emissive element sensing of the display and/or thin film transistor sensing of the display. Compensating for the effects may preserve or increase a uniformity of transmission of the display.

公开(公告)号：US20210304703A1

公开(公告)日：2021-09-30

申请号：US17217827

申请日：2021-03-30

Applicant: Apple Inc.

Inventor： Yang Xu ,  Jie Won Ryu ,  Kingsuk Brahma ,  Koorosh Aflatooni ,  Marc Joseph DeVincentis ,  Mohammad Ali Jangda ,  Paolo Sacchetto ,  Shengkui Gao ,  Sinan Alousi ,  Yafei Bi ,  Chun Lu

IPC: G09G5/10

Abstract: Systems, methods, and devices are provided for providing intra-frame luminance scaling to avoid drawing excessive power while still providing exceptional brightness. An instantaneous average pixel luminance of an electronic display may be determined. The instantaneous average pixel luminance may correspond to an amount of light currently being emitted by the electronic display due to a previous image frame and a current image frame. Based at least in part on the instantaneous average pixel luminance, the luminance of a subset of pixels of image data of the current image frame may be adjusted, thereby allowing the electronic display to operate at a relatively high brightness level without exceeding a power limit.

公开(公告)号：US10559238B2

公开(公告)日：2020-02-11

申请号：US15698262

申请日：2017-09-07

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Shengkui Gao ,  Hyunwoo Nho ,  Chin-Wei Lin ,  Mohammad B Vahid Far ,  Jie Won Ryu ,  Kingsuk Brahma ,  Junhua Tan ,  Sun-II Chang ,  Shinya Ono ,  Jesse A Richmond ,  Yafei Bi ,  Derek K. Shaeffer

IPC: G09G3/00

Abstract: Systems and methods are provided for differential sensing (DS), difference-differential sensing (DDS), correlated double sampling (CDS), and/or programmable capacitor matching to reduce display panel sensing noise. An electronic device may include one or more processors and an electronic display. The one or more processors may generate image data and adjust the image data based at least in part on display sensing feedback. The electronic display may employ sensing circuitry that obtains the display sensing feedback at least in part by applying test data to a pixel of a column of an active area of the display and differentially senses an electrical value of the pixel in comparison to a reference signal from a different column. This reference signal may provide a common mode noise reference, which is removed by the differential sensing and thereby enhances a quality of the sensed electrical value of the pixel.

公开(公告)号：US20200005716A1

公开(公告)日：2020-01-02

申请号：US16567972

申请日：2019-09-11

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Kingsuk Brahma ,  Jie Won Ryu ,  Shengkui Gao ,  Shiping Shen ,  Majid Gharghi ,  Hyunwoo Nho ,  Injae Hwang ,  Kavinaath Murugan ,  Sun-Il Chang ,  Chin Wei Lin ,  Hyunsoo Kim ,  Rui Zhang ,  Jesse Aaron Richmond ,  Yun Wang ,  Hung Sheng Lin ,  Alex H. Pai ,  Chaohao Wang ,  Wei H. Yao

IPC: G09G3/3283 ,  G09G3/3291 ,  G09G3/3241 ,  G09G3/3258

Abstract: The present disclosure relates generally to systems and methods that may reduce a reduction in visual artifacts related to hysteresis of a light emitting diode (LED) electronic display. In one example, an electronic device may include a controller. The controller is may provide a signal to a pixel of a display of the electronic device while at least a portion of the display is turned off. The signal may include a first current and a second current. The first current may be designed to increase an ambient temperature corresponding to the pixel. The second current may be generated as part of an active panel conditioning operation. By applying the first current and the second current, hysteresis settling times from the pixel may improve, therefore improving speeds of sensing and compensation operations of the electronic device.