公开(公告)号：US20250037648A1

公开(公告)日：2025-01-30

申请号：US18784592

申请日：2024-07-25

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Myungjoon Choi ,  Kevin W. Sliech ,  Ju Hyung Nam ,  Hyunwoo Nho ,  Qiuyao Zhu

IPC: G09G3/32

Abstract: Electronic devices and displays are provided for reducing or eliminating image artifacts due to delayed or dropped image frames. Such an electronic display may include an electronic display panel to display an image frame and display driver circuitry (e.g., a timing controller (TCON)). The display driver circuitry may program display pixels of the display panel to display the image frame over a series of subframes having time quanta higher than a maximum frame rate of the electronic display.

公开(公告)号：US20240203335A1

公开(公告)日：2024-06-20

申请号：US18540613

申请日：2023-12-14

Applicant: Apple Inc.

Inventor： Mario Miscuglio ,  Yang Xu ,  Snehal T. Jariwala ,  Yi Qiao ,  Jean-Pierre S. Guillou ,  Jenny Hu ,  Ming Xu ,  Wanqing Xin ,  Zuo Xia ,  Xin Zheng ,  Jie Won Ryu ,  Graeme M. Williams ,  Kingsuk Brahma

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0233 ,  G09G2320/0686 ,  G09G2330/021 ,  G09G2340/00

Abstract: Systems and methods described herein may utilize a non-linear scaling relationship to scale brightness of selective portions of the display in a manner that reduces or eliminates perceivable banding effects. By non-linearly controlling changes in brightness of the display, a viewer may perceive a more uniform, linear dimming towards the relatively dimmer region without perceiving banding, leading to improved user experience when viewing the electronic display.

公开(公告)号：US11810494B2

公开(公告)日：2023-11-07

申请号：US17820190

申请日：2022-08-16

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  ByoungSuk Kim ,  David S Zalatimo ,  Graeme M Williams ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jesse R Manders ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Sachiko Oda ,  Shatam Agarwal ,  Yao Shi

IPC: G09G3/20 ,  H03M1/10

CPC classification number: G09G3/2044 ,  H03M1/1019 ,  G09G2310/027 ,  G09G2320/0276

Abstract: An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.

公开(公告)号：US20230087480A1

公开(公告)日：2023-03-23

申请号：US17820190

申请日：2022-08-16

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  ByoungSuk Kim ,  David S. Zalatimo ,  Graeme M. Williams ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jesse R. Manders ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Sachiko Oda ,  Shatam Agarwal ,  Yao Shi

IPC: G09G3/20 ,  H03M1/10

Abstract: An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.

公开(公告)号：US11282449B2

公开(公告)日：2022-03-22

申请号：US15674208

申请日：2017-08-10

Applicant: Apple Inc.

Inventor： Sun Il Chang ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Jie Won Ryu ,  Junhua Tan ,  Chih-Wei Yeh ,  Chaohao Wang ,  Paolo Sacchetto

IPC: G09G3/3225 ,  G09G3/20 ,  G09G3/36

Abstract: Systems, methods, and devices for adjusting image display on an electronic display by predicting a temperature change of the electronic display due to heat-producing components near the display or due to changes in content. An electronic device may include an electronic display and processing circuitry. The electronic display may include pixels with behaviors that vary with temperature. As such, the processing circuitry may generate image data to send to the electronic display and adjust the image data or vary an operation of the electronic display based at least in part on a predicted temperature effect on at least part of the active area of the electronic display. The processing circuitry may determine the predicted temperature effect at least in part due to a first heat producing component or changes in content of the image data.

公开(公告)号：US11205363B2

公开(公告)日：2021-12-21

申请号：US17016282

申请日：2020-09-09

Applicant: Apple Inc.

Inventor： Myungjoon Choi ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Mohammad Ali Jangda ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Alex H. Pai ,  Jesse Aaron Richmond ,  Jie Won Ryu ,  Shiping Shen ,  Chaohao Wang

IPC: G06F3/046 ,  H04B3/32 ,  G09G3/20 ,  G06F3/044

Abstract: An electronic display may include pixel circuitry to display an image based on image data compensated for voltage variations within the pixel circuitry. Image processing circuitry may generate a compensation value to compensate the image data for cross-talk (e.g., electromagnetic coupling between an electrode of touch sensor circuitry and an electrode of the pixel circuitry) that may cause the voltage variations. Additionally or alternatively, the image processing circuitry may generate another compensation value to compensate the image data for another cross-talk (e.g., electromagnetic coupling between two electrodes of the pixel circuitry). The image processing circuitry may generate the compensated image data based on the first compensation value and/or the second compensation value.

公开(公告)号：US11127357B2

公开(公告)日：2021-09-21

申请号：US16850936

申请日：2020-04-16

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Myungjoon Choi ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Chin-Wei Lin ,  Shiping Shen ,  Kingsuk Brahma ,  Chaohao Wang ,  Shinya Ono ,  Alex H. Pai ,  Hassan Edrees

IPC: G09G3/30 ,  G09G3/3291

Abstract: Techniques for implementing and/or operating an electronic device, which includes a display pixel that emits light to facilitate displaying an image during an emission period and a data driver coupled to the display pixel via a data line. The data driver generates a data line voltage signal based on image data that indicates target luminance of the display pixel in the image and supplies the data line voltage signal to the data line during a non-emission period preceding the emission period to facilitate writing the image to the display pixel. Additionally, the data driver supplies an intermediate voltage greater than a ground voltage to the data line during the emission period in which the image is displayed to facilitate reducing luminance variation in the image resulting from a leakage current flowing between an internal node of the display pixel and the data line during the emission period.

公开(公告)号：US20210082349A1

公开(公告)日：2021-03-18

申请号：US16603189

申请日：2018-03-27

Applicant: Apple Inc.

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

IPC: G09G3/3258 ,  G09G3/3233

Abstract: An electronic device comprises a controller. The controller is configured to provide a first signal to a display of the electronic device to turn off the display. The controller is also configured to provide a second signal to the display to alter a gate source voltage of a drive transistor coupled to a light emitting diode (LED) of a pixel of the display while the display is turned off.

公开(公告)号：US10950182B2

公开(公告)日：2021-03-16

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 ,  G09G3/3241 ,  G09G3/3258 ,  G09G3/3291

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.

公开(公告)号：US20200335046A1

公开(公告)日：2020-10-22

申请号：US16850936

申请日：2020-04-16

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Myungjoon Choi ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Chin-Wei Lin ,  Shiping Shen ,  Kingsuk Brahma ,  Chaohao Wang ,  Shinya Ono ,  Alex H. Pai ,  Hassan Edrees

IPC: G09G3/3291

Abstract: Techniques for implementing and/or operating an electronic device, which includes a display pixel that emits light to facilitate displaying an image during an emission period and a data driver coupled to the display pixel via a data line. The data driver generates a data line voltage signal based on image data that indicates target luminance of the display pixel in the image and supplies the data line voltage signal to the data line during a non-emission period preceding the emission period to facilitate writing the image to the display pixel. Additionally, the data driver supplies an intermediate voltage greater than a ground voltage to the data line during the emission period in which the image is displayed to facilitate reducing luminance variation in the image resulting from a leakage current flowing between an internal node of the display pixel and the data line during the emission period.