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公开(公告)号：US12205510B2
公开(公告)日：2025-01-21
申请号：US18318484
申请日：2023-05-16
Applicant: Apple Inc.
Abstract: In accordance with embodiments of the present disclosure, a device may include a pulsed emission electronic display having multiple display pixels in order to display an image frame. The display may pulse one or more display pixels of over a plurality of sub-frames within the image frame based on display image data. The device may also include image processing circuitry to generate the display image data based on source image data indicative of an image to be displayed during the image frame. Additionally, the image processing circuitry may dither an order of the plurality of sub-frames.
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公开(公告)号：US20240177670A1
公开(公告)日：2024-05-30
申请号：US18430086
申请日：2024-02-01
Applicant: Apple Inc.
Inventor： Hjalmar Edzer Ayco Huitema , Hopil Bae , Kapil V. Sakariya , Mahdi Farrokh Baroughi , Stanley B. Wang , Tore Nauta
IPC: G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2300/0866 , G09G2310/0275
Abstract: Display panel redundancy schemes and redundancy building blocks are described. In an embodiment, pixel driver chips are connected to both primary and redundant strings of LEDs within a local passive matrix, and driver terminal switches within the pixel driver chip are used to select either the primary or redundant strings of LEDs.
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3.发明公开公开(公告)号：US20240105525A1
公开(公告)日：2024-03-28
申请号：US18358559
申请日：2023-07-25
Applicant: Apple Inc.
Inventor： Imran Hashim , Xiang Lu , Stanley B. Wang , Xuchun Liu , Mahdi Farrokh Baroughi , Yongjie Jiang , Hopil Bae , Hasan Akyol , Baris Posat , John T. Wetherell , Lei Wu
IPC: G09G3/32 , H01L25/075 , H01L33/62
CPC classification number: G09G3/32 , H01L25/0753 , H01L33/62 , H01L2933/0066
Abstract: Test structures and methods of testing pixel driver chip donor wafers are described. In an embodiment, a redistribution layer is formed over a pixel driver chip donor wafer and probed to determine known good dies, followed by removal of the RDL. In other embodiments, test routing is formed in the pixel driver chip using a polycide material or doped region in the semiconductor wafer.
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公开(公告)号：US20240096263A1
公开(公告)日：2024-03-21
申请号：US18353584
申请日：2023-07-17
Applicant: Apple Inc.
Inventor： Denis M. Darmon , Christopher P. Tann , Hopil Bae , Yanghyo Kim , Ramana V. Rachakonda , Xiaofeng Wang , Robert D. Zucker
CPC classification number: G09G3/2096 , G02B26/0833 , G09G2320/0626 , G09G2330/021 , G09G2360/18
Abstract: A device may include image processing circuitry that generates image data corresponding to an image to be displayed during a first image frame and a second image frame. However, the image data is not regenerated for the second image frame. The device may also include an electronic display having a frame buffer that receives and stores the image data from the image processing circuitry. The electronic display may also include a display panel that displays the image during the first image frame based on a first read of the image data from the frame buffer in response to a first emission sync signal and displays the image during the second image frame based on a second read of the image data from the frame buffer in response to a second emission sync signal.
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公开(公告)号：US20240054936A1
公开(公告)日：2024-02-15
申请号：US18358012
申请日：2023-07-24
Applicant: Apple Inc.
Inventor： Yaser Azizi , Haitao Li , Hopil Bae , Mahdi Farrokh Baroughi , Xiang Lu , Seung B Rim
CPC classification number: G09G3/2085 , G09G3/32 , G09G3/2096 , G09G2320/0266 , G09G2300/06 , G09G2310/08 , G09G2300/0452 , G09G2320/0261
Abstract: Electronic devices, displays, and methods are provided for performing row shuffling to reduce an appearance of image artifacts during eye movements such as saccades. An electronic display may include a number of rows of display pixels and driving circuitry to drive the rows of pixels. The driving circuitry may spatially shuffle or temporally shuffle, or both spatially and temporally shuffle, a row order of driving the rows of display pixels.
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Patent Agency Ranking
公开(公告)号：US20240005848A1
公开(公告)日：2024-01-04
申请号：US18210060
申请日：2023-06-14
Applicant: Apple Inc.
Inventor： Jeongsup Lee , Hasan Akyol , Xiang Lu , Mahdi Farrokh Baroughi , Nikhil Acharya , Haitao Li , Hopil Bae , John T Wetherell , Shengzhe Jiao , Stanley B. Wang , Sunmin Jang , Hari P. Paudel , Eric A. Hildebrandt , Young Don Bae
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0819 , G09G2300/0852 , G09G2310/08
Abstract: An electronic device may include an electronic display including display pixels to display an image based on compensated image data. As image data is written to a pixel in the row of pixels, capacitive coupling at a driver may lead to distortion on the driver. In particular, the capacitive coupling may cause distortion at a storage capacitor, which may lead to current droop at the pixel. The current droop may be reduced or eliminated in each pixel by performing pixel compensation. The pattern of the pixel compensation may be selected such that, over a number of subframes, an average amount of light is the same or similar to what would be emitted had pixel compensation been performed on each pixel in each subframe.
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公开(公告)号：US20240005833A1
公开(公告)日：2024-01-04
申请号：US18204927
申请日：2023-06-01
Applicant: Apple Inc.
Inventor： Mahdi Farrokh Baroughi , Hopil Bae , Seung B Rim , Haitao Li , Sunmin Jang , Ce Zhang
IPC: G09G3/20 , G09G3/3233
CPC classification number: G09G3/2007 , G09G3/3233 , G09G2300/0842 , G09G2320/041 , G09G2330/021 , G09G2310/08 , G09G2354/00
Abstract: A control circuit adjusts a value of a source supply voltage VSSEL provided to a display area in an electronic display. The control circuit also adjusts a voltage Vreset applied to the display area to cause the display area to emit light more uniformly under various ambient conditions (e.g., temperature) surrounding the display area. Dynamically changing Vreset is employed to make anode charging dynamics independent of temperature. The control circuit adjusts the source supply voltage VSSEL and the voltage Vreset together to compensate display pixel hysteresis effects and display artifacts caused by temperature changes and brightness changes of the display area and collectively produce images. Dynamically tuning the Vreset and the VSSEL voltages also saves power and improves gray level accuracy for the electronic display.
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公开(公告)号：US11688364B2
公开(公告)日：2023-06-27
申请号：US17714805
申请日：2022-04-06
Applicant: Apple Inc.
Inventor： Hari P Paudel , Chaohao Wang , Hopil Bae , Mahdi Farrokh Baroughi , Wei Chen , Wei H Yao , Seung B Rim , Sunmin Jang
IPC: G09G5/10
CPC classification number: G09G5/10 , G09G2300/026 , G09G2320/0686 , G09G2340/12 , G09G2354/00 , G09G2360/16
Abstract: An electronic device may display image content via a tile-based display by controlling light emission from display pixels of the tile-based display. Based on image data associated with the image content, a processing circuitry of the tile-based display may receive a potential tile boundary. The processing circuitry may resample the image data based on geometry of the tile boundary and positions of the display pixels on the tile-based panel. After resampling the image data, the processing circuitry may adjust gain of the tile boundary display pixels according to a gain mask to compensate for the tile boundary.
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公开(公告)号：US20230087088A1
公开(公告)日：2023-03-23
申请号：US17894935
申请日：2022-08-24
Applicant: Apple Inc.
Inventor： Mahdi Farrokh Baroughi , Sandeep Chalasani , Xiang Lu , Anurag Mehta , Hopil Bae , Chaohao Wang , Rajesh Velayuthan , Steven E. Molesa , Yaser Azizi , Young Don Bae , Sunmin Jang , Haitao Li , Hari P. Paudel , Anatole Huang , Tyler R. Kakuda , David A. Doyle , Wei H. Yao , Majid Gharghi , Vaibhav D. Patel
Abstract: A display may be formed by an array of light-emitting diodes mounted to the surface of a display substrate. The light-emitting diodes may be inorganic light-emitting diodes formed from separate crystalline semiconductor structures. An array of pixel control circuits may be used to control light emission from the light-emitting diodes. Each pixel control circuit may be configured to control one or more respective passive matrices. To control partial pixel cells in the display, a donor pixel control circuit in a partial pixel cell may control the pixels in a receptor partial pixel cell without a pixel control circuit. To mitigate the size of an inactive area of the display, fanout signal lines for the display may be formed in the light-emitting active area of the display. The fanout signal lines may be formed between a row of pixel control circuits and a bottom edge of the light-emitting active area.
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公开(公告)号：US11341893B2
公开(公告)日：2022-05-24
申请号：US17088809
申请日：2020-11-04
Applicant: Apple Inc.
Inventor： Xiang Lu , Mahdi Farrokh Baroughi , Xiaofeng Wang , Derek K. Shaeffer , Henry C. Jen , Hopil Bae
IPC: G06F3/038 , G09G3/20 , G09G3/3216 , G09G3/3275 , H01L27/32
Abstract: Hybrid architectures and method methods of operating a display panel are described. In an embodiment, row driver and pixel driver functions are combined in a group of backbone hybrid pixel driver chips, wherein global signal lines are distributed to the backbone hybrid pixel driver chips, where the global signals are manipulated and distributed to a row of pixel driver chips.
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