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公开(公告)号:US20210312694A1
公开(公告)日:2021-10-07
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
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.
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公开(公告)号:US20210098520A1
公开(公告)日:2021-04-01
申请号:US17003638
申请日:2020-08-26
Applicant: Apple Inc.
Inventor: Shengchang Cai , Enkhamgalan Dorjgotov , Chaohao Wang , Sheng Zhang , Giovanni Carbone , Igor Stamenov
IPC: H01L27/146
Abstract: Techniques for implementing and/or operating an electronic device that includes or utilizes a display panel. The display panel includes an organic light-emitting diode layer, an encapsulation layer disposed over the organic light-emitting diode layer, and a color filter layer disposed over the encapsulation layer. The color filter layer overhangs the organic light-emitting diode layer and comprises a first color filter cell of a first color component sub-pixel that at least partially overlaps an organic light-emitting diode of a second color component sub-pixel that is a different color compared to the first color component sub-pixel.
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公开(公告)号:US20210097958A1
公开(公告)日:2021-04-01
申请号:US17003730
申请日:2020-08-26
Applicant: Apple Inc.
Inventor: Adria Fores Herranz , Chaohao Wang , Jun Li , Koorosh Aflarooni , Pierre-Yves Emellie , Sheng Zhang , Yingying Tang , Yunhui Hou
IPC: G09G5/10
Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive input image data, in a first color space, having luminance values for each of the sub-pixels. The circuitry may also map the input image data from the first color space to a second color space and apply a multi-dimensional lookup table, based on the input image data in the second color space, to generate compensated image data. The lookup table may receive the luminance values for each of the sub-pixels and output corrected luminance values compensated for an expected amount of current leakage between the sub-pixels. The circuitry may also inversely map the compensated image data from the second color space to the first color space to generate the processed image data.
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公开(公告)号:US20210097921A1
公开(公告)日:2021-04-01
申请号:US17003757
申请日:2020-08-26
Applicant: Apple Inc.
Inventor: Chaohao Wang , Sheng Zhang , Yingying Tang , Yunhui Hou
IPC: G09G3/20
Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive first image data for a sub-pixel of the and second image data for a group of sub-pixels surrounding the sub-pixel. The first image data may include a luminance value for the sub-pixel and the second image data may include luminance values for each sub-pixel of the group. The image processing circuitry may also determine a compensation value, to compensate the luminance value for lateral current leakage between the sub-pixel and the group of sub-pixels, based on the luminance value of the sub-pixel and the luminance values for each sub-pixel of the group of sub-pixels.
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公开(公告)号:US10885852B2
公开(公告)日:2021-01-05
申请号:US16893373
申请日:2020-06-04
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 , G09G3/3233
Abstract: An 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 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 set of degradation ratios and gamma tap points for each brightness setting of the display based at least in part on a reconstructed current-voltage curve.
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公开(公告)号:US10748340B1
公开(公告)日:2020-08-18
申请号:US15989756
申请日:2018-05-25
Applicant: Apple Inc.
Inventor: Sheng Zhang , Aleksandr M. Movshovich , Arthur Y. Zhang , Chaohao Wang , Moinul H. Khan , Paolo Sacchetto , Yunhui Hou
Abstract: An electronic device may have a camera and a display. The display may be configured to display virtual reality content for a user in which no real-world content from the camera is displayed or mixed reality content in which a combination of real-world content from the camera and overlaid virtual reality content is displayed. Control circuitry in the device may adjust the display and camera while transitioning between virtual reality and mixed reality modes. The control circuitry may reconfigure the camera to exhibit a desired frame rate immediately upon transitioning from virtual reality mode to mixed reality mode. Transitions between modes may be accompanied by smooth transitions between frame rates to avoid visible artifacts on the display. The camera frame rate may be synchronized to the display frame rate for at least part of the transition between the virtual reality and mixed reality modes.
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公开(公告)号:US10446116B2
公开(公告)日:2019-10-15
申请号:US15673138
申请日:2017-08-09
Applicant: Apple Inc.
Inventor: Sheng Zhang , Chaohao Wang , Cheuk Chi Lo , Chun-Yao Huang , Howard Tang , Paolo Sacchetto
IPC: G09G5/10 , G01K13/00 , G01K7/34 , G09G3/20 , G01K1/02 , G01K7/01 , G01K7/18 , G06F3/044 , G09G3/36 , G09G3/3225 , G09G3/34
Abstract: An apparatus is disclosed. In some examples, the apparatus comprises a display panel comprising a plurality of display pixels. In some examples, the apparatus comprises a plurality of temperature sensors disposed at different portions the display panel, wherein the plurality of temperature sensors comprise ratioed pairs of thin film transistors and the ratioed pairs of thin film transistors are formed on the display panel. In some examples, the apparatus comprises control circuitry for changing illumination properties of the plurality of display pixels based on changes is temperature detected by a proximate temperature sensor of the plurality of temperature sensors. In some examples, the ratioed pairs of thin film transistors are operated in a sub-threshold mode.
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公开(公告)号:US10395349B1
公开(公告)日:2019-08-27
申请号:US15658169
申请日:2017-07-24
Applicant: Apple Inc.
Inventor: Sheng Zhang , Chaohao Wang , Paolo Sacchetto
Abstract: An electronic device such as a head-mounted display or other display system may have a pair of adjustable focal length lenses. Control circuitry in the head-mounted display may adjust the adjustable focal length lenses so that the adjustable focal length lenses exhibit a series of different focal lengths. A graphics processor may generate undistorted image frames. The adjustable focal length lenses may exhibit a different amount of lens distortion at each focal length. To compensate for these different amounts of lens distortion, a distortion compensation circuit may predistort the undistorted image frames by an appropriate amount for each focal length. The distortion compensation circuit may include mapping and interpolation circuitry and look-up tables that store mapping and interpolation data for each of the focal lengths.
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公开(公告)号:US20190180669A1
公开(公告)日:2019-06-13
申请号:US15944470
申请日:2018-04-03
Applicant: Apple Inc.
Inventor: Hung Sheng Lin , Paolo Sacchetto , Yingying Tang , Hyunwoo Nho , Sebastian Knitter , Chaohao Wang , Sheng Zhang
Abstract: An electronic device that includes processing circuitry configured to generate a frame of image data that has a frame duration is provided. The electronic device includes a display that has a plurality of pixels. Each of the plurality of pixels displays image data from the frame of image data for a pixel emission period that is less than the frame duration. A first pixel of a column of pixels of the plurality of pixels begins displaying the image data from the frame of image data at a first time for a first duration. A second pixel of the column of pixels that is adjacent to the first pixel begins displaying the image data from the frame of image data at a second time for a second duration. The first and second durations are equal to the pixel emission period. The second time begins after the first duration of time.
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公开(公告)号:US20190088199A1
公开(公告)日:2019-03-21
申请号:US16132320
申请日:2018-09-14
Applicant: Apple Inc.
Inventor: Sheng Zhang , Chengrui Le , Hopil Bae , Mahdi Farrokh Baroughi , David W. Lum , Adam Adjiwibawa , Chaohao Wang , Paolo Sacchetto , Wei H. Yao , Enkhamgalan Dorjgotov , Michael Slootsky , Giovanni Carbone , Derek K. Shaeffer , Henry C. Jen , Shingo Hatanaka , Hasan Akyol
IPC: G09G3/3233 , G09G3/3258
Abstract: An electronic device includes a display having a reference array that includes a first pixel. The display also includes a first emission power supply coupled to the first pixel. The display further includes an active array having a second pixel. The display also includes a second emission power supply coupled to the second pixel.
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