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.

Inventor： Hopil Bae ,  Xiang Lu ,  Haitao Li

IPC: G09G3/20 ,  G09G3/32

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.

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.

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

IPC: G09G3/20 ,  G09G3/32

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.

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.

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

IPC: H01L27/15 ,  H01L33/62 ,  G09G3/32 ,  H01L33/38

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.

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.

公开(公告)号：US20190385509A1

公开(公告)日：2019-12-19

申请号：US16356914

申请日：2019-03-18

Applicant: Apple Inc.

Inventor： Xiang Lu ,  Mahdi Farrokh Baroughi ,  Xiaofeng Wang ,  Derek K. Shaeffer ,  Henry C. Jen ,  Hopil Bae

IPC: G09G3/20 ,  G09G3/3275 ,  G09G3/3216

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.

公开(公告)号：US20240012515A1

公开(公告)日：2024-01-11

申请号：US18212099

申请日：2023-06-20

Applicant: Apple Inc.

Inventor： Pablo Moreno Galbis ,  Xiang Lu ,  Bin Huang ,  Ling Zhang ,  Nikhil Acharya ,  Derek K. Shaeffer ,  Stanley B. Wang ,  Yongjie Jiang ,  Hopil Bae ,  Jiayi Jin ,  Ce Zhang ,  Young Don Bae ,  Giovanni Azzellino ,  Wooseung Yang ,  Mahdi Farrokh Baroughi ,  Weijun Yao ,  Rajesh Velayuthan ,  Eric A. Hildebrandt ,  Henry C. Jen

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F2203/04107 ,  G06F3/044

Abstract: Touch sensitive display technologies (e.g., integrated touch-display pixel-based systems) are evolving to contain more analog and digital circuits inside the panel itself instead of the traditionally simple thin-film transistors. This improves the display characteristics but makes those circuits more vulnerable to the impact of external ESD strikes, which can degrade the user experience. This disclosure describes a series of circuits and techniques to mitigate the impact of these discharges on front of screen artifacts and potential false touches. These circuits and techniques may include: performing configuration-only panel updates independently of the image refresh rate, improving the in-panel memory circuits to make them resistant to unexpected pin toggles via disabling of a write path in response to a read clock, implementing a pin corruption detector and implementing a supply injection detector.

公开(公告)号：US11645976B2

公开(公告)日：2023-05-09

申请号：US17648074

申请日：2022-01-14

Applicant: Apple Inc.

Inventor： Derek K. Shaeffer ,  Mahdi Farrokh Baroughi ,  Xiaofeng Wang ,  Sam S. Li ,  John T. Wetherell ,  Henry C. Jen ,  Xiang Lu ,  Hasan Akyol ,  Hopil Bae ,  Xiang Fang ,  Hjalmar Edzer Ayco Huitema ,  Tore Nauta

IPC: G09G3/3216 ,  H01L27/32 ,  G09G3/20 ,  H05B45/20

CPC classification number: G09G3/3216 ,  G09G3/2003 ,  H01L27/3281 ,  H05B45/20 ,  G09G2310/0243 ,  G09G2310/0264

Abstract: Local passive matrix displays and methods of operation are described. In an embodiment, the display includes a pixel driver chip coupled with a matrix of rows and columns of LEDs. The pixel driver chips may be arranged in rows across the display with separate portions to operate separate matrices of LEDs.

公开(公告)号：US20220246082A1

公开(公告)日：2022-08-04

申请号：US17727197

申请日：2022-04-22

Applicant: Apple Inc.

Inventor： Xiang Lu ,  Mahdi Farrokh Baroughi ,  Xiaofeng Wang ,  Derek K. Shaeffer ,  Henry C. Jen ,  Hopil Bae

IPC: G09G3/20 ,  G09G3/3216 ,  G09G3/3275

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.