公开(公告)号：US20190244572A1

公开(公告)日：2019-08-08

申请号：US16265902

申请日：2019-02-01

Applicant: Apple Inc.

Inventor： Chengrui LE ,  Chaohao Wang ,  Li Tao ,  Lingyu Hong ,  Paolo Sacchetto ,  Sheng Zhang ,  Xiaokai Li ,  Yingying Tang ,  Yunhui Hou ,  Johan L. Piper

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/342 ,  G09G3/36 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/041 ,  G09G2320/0606 ,  G09G2320/062 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/103 ,  G09G2340/0435 ,  G09G2354/00 ,  G09G2360/16

Abstract: Aspects of the subject technology relate to pulsed backlight operation for a display backlight. Backlight pulse patterns are provided that include steady state pulse patterns to be applied during operation of a liquid crystal display unit of the display at a corresponding frame rate. The backlight pulse patterns can be arranged to prevent visible artifacts such as flicker or strobing, particularly at or near a transition between LCD frame rates. In some scenarios, transition pulse patterns are provided,

公开(公告)号：US20190189086A1

公开(公告)日：2019-06-20

申请号：US16326665

申请日：2017-08-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Bennett S. Wilburn ,  Paolo Sacchetto ,  Chaohao Wang ,  Cheng Chen ,  Enkhamgalan Dorjgotov

IPC: G09G5/36 ,  G09G5/10 ,  G06F3/147

CPC classification number: G09G5/363 ,  G06F3/147 ,  G09G3/3225 ,  G09G5/10 ,  G09G2310/08 ,  G09G2320/0261 ,  G09G2320/043 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2354/00

Abstract: An electronic device may have a display such as an organic light-emitting diode display. Electronic devices may also include a number of sensors such as accelerometers and gaze detection sensors. A graphics processing unit (GPU) may render digital pixel values for pixels in the device display. Frames (F2) with long rendering times may cause latency. To reduce latency, an image frame may be displayed for an extended period of time (68) to wait for the subsequent frame (F2) to finish rendering. Once the subsequent image frame (F2) has finished rendering, the subsequent image frame may be displayed without delay. To increase the lifespan of the display, variable persistence may be used. Sensor data and other factors may be used to dynamically determine persistence for minimal motion blur and maximum display lifespan. Sensor data may also be used to determine refresh rates for different portions of the display.

公开(公告)号：US20190088204A1

公开(公告)日：2019-03-21

申请号：US16132322

申请日：2018-09-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chih-Wei Yeh ,  Yunhui Hou ,  Chaohao Wang ,  Wei H. Yao ,  Paolo Sacchetto ,  Derek K. Shaeffer ,  Henry C. Jen ,  Shingo Hatanaka ,  Hasan Akyol ,  Mahdi Farrokh Baroughi ,  Hopil Bae

IPC: G09G3/3258

Abstract: A mobile electronic device includes a display having an active array and a reference array. The active array includes a pixel and the reference array includes a reference pixel. The mobile electronic device also includes processing circuitry communicatively coupled to the display. The processing circuitry is configured to instruct the active array to drive the pixel based at least in part on a current-voltage relationship of the pixel and a reference current-voltage relationship of the reference pixel.

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

IPC: G09G3/20 ,  G09G5/06

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.

公开(公告)号：US20240428502A1

公开(公告)日：2024-12-26

申请号：US18653567

申请日：2024-05-02

Applicant: Apple Inc.

Inventor： Fu-Chung Huang ,  ByoungSuk Kim ,  Felipe Bacim De Araujo E Silva ,  Hao Chen ,  Igor Kozintsev ,  Pavel V Dudrenov ,  Ping-Yen Chou ,  Seung Wook Kim ,  Sheng Zhang ,  Victor H Yin ,  Wei H Yao ,  Wei Xiong ,  Yang Li ,  Yi Huang ,  Yi-Pai Huang ,  Justin A Meiners

IPC: G06T15/06 ,  H04N13/133 ,  H04N13/305

Abstract: An electronic device may include a lenticular display. The lenticular display may have a lenticular lens film formed over an array of pixels. The lenticular lenses may be configured to enable stereoscopic viewing of the display such that a viewer perceives three-dimensional images. The display may render different content layers that present different classes of content. The different classes of content may have different characteristics. As an example, a first class of content may be static content whereas a second class of content may be dynamic content. The different characteristics of each class of content may be leveraged to use a hybrid approach for content processing. The hybrid content processing may take advantage of different layers needing to be updated at different frequencies and may take advantage of sparse content in some of the layers.

公开(公告)号：US20240404461A1

公开(公告)日：2024-12-05

申请号：US18429079

申请日：2024-01-31

Applicant: Apple Inc.

Inventor： Shereef Shehata ,  Jim C. Chou ,  Sheng Zhang ,  Shengchang Cai

IPC: G09G3/3208 ,  G06F3/01

Abstract: Systems and methods are provided for using an optical crosstalk compensation (OXTC) block to compensate for optical crosstalk resulted from a combination of viewing angle change across field of view (FoV), color filter (CF) crosstalk, and the OLED various angle color shift (VACS) of a foveated electronic display. One or more two-dimensional (2D) OXTC factor maps are used to determine OXTC factors for input image data of the OXTC block, and the OXTC factors are updated on a per frame basis. Offset values are determined using a parallel architecture and used to determine the OXTC factors. Compensation weights are used to determine weighted OXTC factors to improve processing efficiency. Output image data are obtained by applying the weighted OXTC factors to the input image data.

公开(公告)号：US11955038B1

公开(公告)日：2024-04-09

申请号：US17346063

申请日：2021-06-11

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chaohao Wang ,  Yi-Pai Huang ,  Yue Ma ,  Ping-Yen Chou ,  Fu-Chung Huang

IPC: G09G3/00 ,  G02B30/29

CPC classification number: G09G3/001 ,  G02B30/29 ,  G09G2320/0693

Abstract: An electronic device may include a lenticular display. The lenticular display may have a lenticular lens film formed over an array of pixels. The display may have a number of independently controllable viewing zones. Each viewing zone displays a respective two-dimensional image. Each eye of the viewer may receive a different one of the two-dimensional images, resulting in a perceived three-dimensional image. The electronic device may include display pipeline circuitry that generates and processes content to be displayed on the lenticular display. Content generating circuitry may generate content that includes a plurality of two-dimensional images, each two-dimensional image corresponding to a respective viewing zone. Pixel mapping circuitry may be used to map the two-dimensional images to the array of pixels in the lenticular display. The array of pixels may have a diagonal layout. An offset map may be used by the pixel mapping circuitry to account for the diagonal layout.

公开(公告)号：US20240038158A1

公开(公告)日：2024-02-01

申请号：US18481119

申请日：2023-10-04

Applicant: Apple Inc.

Inventor： Lingtao Wang ,  Yingying Tang ,  Scott R. Johnston ,  Chaohao Wang ,  Sheng Zhang ,  Woo Shik Jung

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2320/0233 ,  G09G2300/0443 ,  G09G2360/144 ,  G09G2320/0673

Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The electronic device may include a plurality of transparent windows that overlap the optical sensor. The resolution of the display panel may be reduced in some areas due to the presence of the transparent windows. To prevent a visible border between the reduced resolution areas of the display and full resolution areas of the display, uniformity compensation circuitry may be used to compensate pixel data. The uniformity compensation circuitry may output compensated pixel data for the display using one or more compensation maps that include compensation factors associated with pixel locations. The uniformity compensation circuitry may also use region-specific gamma look-up tables to apply different gamma curves to pixels in different regions of the display. The uniformity compensation circuitry may also be used to form a transition region between different regions of the display.

公开(公告)号：US11727619B2

公开(公告)日：2023-08-15

申请号：US17352080

申请日：2021-06-18

Applicant: Apple Inc.

Inventor： Arthur Y Zhang ,  Ray L. Chang ,  Timothy R. Oriol ,  Ling Su ,  Gurjeet S. Saund ,  Guy Cote ,  Jim C. Chou ,  Hao Pan ,  Tobias Eble ,  Avi Bar-Zeev ,  Sheng Zhang ,  Justin A. Hensley ,  Geoffrey Stahl

IPC: G06T15/00 ,  H04W76/10 ,  G06F3/01 ,  G06T3/00 ,  G06T9/00 ,  H04W88/08

CPC classification number: G06T15/005 ,  G06F3/012 ,  G06T3/0093 ,  G06T9/00 ,  H04W76/10 ,  H04W88/08

Abstract: A mixed reality system that includes a device and a base station that communicate via a wireless connection The device may include sensors that collect information about the user's environment and about the user. The information collected by the sensors may be transmitted to the base station via the wireless connection. The base station renders frames or slices based at least in part on the sensor information received from the device, encodes the frames or slices, and transmits the compressed frames or slices to the device for decoding and display. The base station may provide more computing power than conventional stand-alone systems, and the wireless connection does not tether the device to the base station as in conventional tethered systems. The system may implement methods and apparatus to maintain a target frame rate through the wireless link and to minimize latency in frame rendering, transmittal, and display.

公开(公告)号：US11626047B1

公开(公告)日：2023-04-11

申请号：US17405497

申请日：2021-08-18

Applicant: Apple Inc.

Inventor： Shengchang Cai ,  Hasan Akyol ,  Xuebei Yang ,  Sheng Zhang

IPC: G09G3/32 ,  G09G3/00

Abstract: Embodiments disclosed herein provide systems and methods for testing and compensating for pixel degradation in an electronic display based on current and voltage values sensed in a reference array. An electronic display includes an active array, a reference array, and sensing circuitry. A compensation manager obtains current data values of the reference array from the sensing circuitry. The compensation manager generates a current-voltage curve based on the current data and adjusts the current-voltage curve to compensate for variations in temperature and/or pixel brightness. In this way, the compensation manager may improve performance of the electronic display by, for example, by reducing visible anomalies.