公开(公告)号：US12236850B2

公开(公告)日：2025-02-25

申请号：US18334914

申请日：2023-06-14

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Ce Zhang ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Pablo Moreno Galbis ,  Paolo Sacchetto ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/32

Abstract: To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.

公开(公告)号：US20240054945A1

公开(公告)日：2024-02-15

申请号：US18365539

申请日：2023-08-04

Applicant: Apple Inc.

Inventor： Mahdi Farrokh Baroughi ,  Young Don Bae ,  Jeongsup Lee ,  Hari P. Paudel ,  Sunmin Jang ,  Shengzhe Jiao ,  Nikhil Acharya ,  Yaser Azizi ,  Ali RostamPisheh ,  Stanley B. Wang ,  Haitao Li

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/0248 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/0233

Abstract: An electronic display may include a first anode configured to carry a red emission signal, a second anode configured to carry a blue emission signal, a third anode configured to carry a green emission signal, and a micro-driver configured to stagger a timing of the red emission signal, the blue emission signal, and the green emission signal based on an emission clock signal to display image content on the electronic display.

公开(公告)号：US20240005850A1

公开(公告)日：2024-01-04

申请号：US18334914

申请日：2023-06-14

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Ce Zhang ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Pablo Moreno Galbis ,  Paolo Sacchetto ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/041 ,  G09G2320/0626

Abstract: To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.

公开(公告)号：US20230368718A1

公开(公告)日：2023-11-16

申请号：US18296934

申请日：2023-04-06

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Mahdi Farrokh Baroughi ,  Saif Choudhary ,  Hopil Bae ,  Gautam Agrawal ,  Ionut A Mirel ,  Hari P Paudel ,  Haitao Li ,  Wei H Yao ,  Mahesh B Chappalli

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2007 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2320/0626 ,  G09G2360/16 ,  G09G2320/02 ,  G09G2310/0264 ,  G09G2310/08

Abstract: To reduce image artifacts and non-uniformity associated with a display pixel of an electronic display, processing circuity may adjust a luminance value corresponding to a display pixel according to a per-pixel gain mask, a per-pixel anode mask, or both. To further correct for the non-uniformity, the processing circuitry may convert the luminance value to a digital code based on a curve associated with an anode on which the display pixel is located.

公开(公告)号：US12243465B2

公开(公告)日：2025-03-04

申请号：US18296934

申请日：2023-04-06

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Mahdi Farrokh Baroughi ,  Saif Choudhary ,  Hopil Bae ,  Gautam Agrawal ,  Ionut A Mirel ,  Hari P Paudel ,  Haitao Li ,  Wei H Yao ,  Mahesh B Chappalli ,  Young Don Bae

IPC: G09G3/20 ,  G09G3/32

Abstract: To reduce image artifacts and non-uniformity associated with a display pixel of an electronic display, processing circuity may adjust a luminance value corresponding to a display pixel according to a per-pixel gain mask, a per-pixel anode mask, or both. To further correct for the non-uniformity, the processing circuitry may convert the luminance value to a digital code based on a curve associated with an anode on which the display pixel is located.

公开(公告)号：US20240105115A1

公开(公告)日：2024-03-28

申请号：US18368982

申请日：2023-09-15

Applicant: Apple Inc.

Inventor： Mahdi Farrokh Baroughi ,  Ce Zhang ,  Haitao Li ,  Hari P. Paudel ,  Hopil Bae ,  Jeongsup Lee ,  Nikhil Acharya ,  Pablo Moreno Galbis ,  Seung B. Rim ,  SeyedAli TaheriTari ,  Shengzhe Jiao ,  Stanley B. Wang ,  Sunmin Jang ,  Xiang Lu ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/3216

CPC classification number: G09G3/3216 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/144

Abstract: Electronic devices, displays, and methods are provided for operating an electronic display in coexistence with sensors that could be adversely impacted by the operation of the electronic display. An electronic device may include an electronic display and a sensor. The electronic display may display image content by light emission during an emission period and periodically enter a quiet period in which the light emission of the electronic display is turned off. The sensor may perform sensing operations during the quiet period without interference from the operation of the electronic display.

公开(公告)号：US20220375427A1

公开(公告)日：2022-11-24

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

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.

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：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.

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.