公开(公告)号：US12027105B1

公开(公告)日：2024-07-02

申请号：US18180697

申请日：2023-03-08

Applicant: Apple Inc.

Inventor： Vincent Z Young ,  Mahesh B Chappalli ,  Tae-Wook Koh ,  Yifan Zhang ,  Jared S Price

IPC: G09G3/30 ,  G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/046

Abstract: Image processing circuitry may include burn-in compensation circuitry that receives image data indicative of luminance outputs for display pixels of an electronic display and compensates the image data for burn-in related aging associated with the display pixels, generating compensated image data. Moreover, compensating the image data may include applying gains based on estimated amounts of aging associated with the display pixels and estimated amounts of current to be delivered to the display pixels. The image processing circuitry may also include burn-in statistics circuitry that tracks the estimated amounts of aging based on the compensated image data.

公开(公告)号：US20220093059A1

公开(公告)日：2022-03-24

申请号：US17376125

申请日：2021-07-14

Applicant: Apple Inc.

Inventor： Maofeng Yang ,  Jiayi Jin ,  David A. Doyle ,  Yifan Zhang ,  Weijun Yao ,  Jiye Lee ,  Tae-Wook Koh ,  Mathew K. Mathai ,  Chuang Qian ,  Tsung-Ting Tsai ,  James P. Landry ,  Kiran S. Pillai ,  Injae Hwang ,  Yongjun Li

IPC: G09G5/10 ,  G09G3/20

Abstract: An electronic device may include an electronic display including display pixels to display an image based on compensated image data. The electronic display may also include a stressed reference pixel to exhibit burn-in related aging in response to one or more stress sessions and a non-stressed reference pixel configured to not undergo the one or more stress sessions. Additionally, the electronic device may include image processing circuitry to determine a panel-specific aging profile based on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel. The image processing circuitry may also generate one or more gain maps based on the panel-specific aging profile and generate the compensated image data by applying the one or more gain maps to input image data.

公开(公告)号：US11164540B2

公开(公告)日：2021-11-02

申请号：US16711319

申请日：2019-12-11

Applicant: Apple Inc.

Inventor： Peter F. Holland ,  Mahesh B. Chappalli ,  Yifan Zhang ,  Tae-Wook Koh

IPC: G09G5/10

Abstract: An electronic device may include an electronic display and a display pipeline. The electronic display may include multiple pixels to display images based at least in part on pixel data. The display pipeline may receive image data and process the image data to determine the pixel data. The display pipeline may include burn-in compensation circuitry to apply gains to the image data based at least in part on burn-in statistics to generate the pixel data. The gain to be applied to the image data for a pixel of the electronic display is determined by the burn-in compensation circuitry, based at least in part on an emission duty cycle of the pixel, to compensate the image data for the pixel for burn-in related aging of the pixel.

公开(公告)号：US10991283B2

公开(公告)日：2021-04-27

申请号：US16403366

申请日：2019-05-03

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chaohao Wang ,  Michael Slootsky ,  Yifan Zhang ,  Tae-Wook Koh

IPC: G09G3/00 ,  G09G3/3208 ,  G09G3/36

Abstract: A flat-panel display device and method to prevent display panel burn-in through a decimated look-up table with pixel shifting in a display or an augmented reality display.

公开(公告)号：US20200099012A1

公开(公告)日：2020-03-26

申请号：US16448918

申请日：2019-06-21

Applicant: Apple Inc.

Inventor： Yifan Zhang ,  Amin Salehi ,  Yun Liu ,  Paul S. Drzaic ,  Tae-Wook Koh ,  Chih Jen Yang ,  Bhadrinarayana Lalgudi Visweswaran ,  Chieh-Wei Chen

IPC: H01L51/52 ,  H01L27/32

Abstract: Display panel stack-up structures are described. In an embodiment, a display panel includes a substrate, a light source, and a multiple layer thin film encapsulation over the light source. In an embodiment, the display panel additionally includes an anti-reflection layer over the light source. In an embodiment, an incoherence layer is located within the thin film encapsulation.

公开(公告)号：US10410569B2

公开(公告)日：2019-09-10

申请号：US15874821

申请日：2018-01-18

Applicant: Apple Inc.

Inventor： Paul S. Drzaic ,  Ross Thompson ,  Guy Cote ,  Christopher P. Tann ,  Jerrold V. Hauck ,  Yifan Zhang ,  Jean-Pierre Guillou ,  Ian C. Hendry ,  Vanessa C. Heppolette ,  Tae-Wook Koh ,  Arthur L. Spence

IPC: G09G3/20 ,  G09G3/00 ,  G06F3/06 ,  G09G3/3208 ,  G06F9/4401 ,  G09G3/32 ,  G06F9/451

Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.

公开(公告)号：US12142219B1

公开(公告)日：2024-11-12

申请号：US18465978

申请日：2023-09-12

Applicant: Apple Inc.

Inventor： Tae-Wook Koh ,  Mahesh B Chappalli ,  Jared S Price ,  Vincent Z Young ,  Yifan Zhang

IPC: G09G5/10 ,  G09G3/3233

Abstract: An electronic device may include an electronic display having a pixel and that displays an image based on compensated image data. The electronic device may also include image processing circuitry communicatively coupled to the electronic display. The image processing circuitry may receive image data and determine a gain value for the pixel based on an aging value of the pixel that is based on previously displayed pixel values of the pixel. The image processing circuitry may also adjust the gain value based on a pixel value of the image data corresponding to the pixel to generate an updated gain value and adjust the pixel value of the image data based on the updated gain value to generate, at least in part, the compensated image data.

公开(公告)号：US12125436B1

公开(公告)日：2024-10-22

申请号：US18325451

申请日：2023-05-30

Applicant: Apple Inc.

Inventor： Tae-Wook Koh ,  Mahesh B Chappalli ,  Vincent Z Young ,  Yifan Zhang ,  Jared S Price

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/046

Abstract: An electronic device may include an electronic display having display pixels that display an image based on compensated image data. The electronic display may also include pixel drive circuitry that provides power to the display pixels in accordance with the compensated image data. Additionally, the electronic device may include burn-in compensation circuitry communicatively coupled to the electronic display that receives input image data and generates the compensated input image data based on the input image data, a pixel aging history corresponding to the display pixels, and a driver aging history corresponding to the pixel drive circuitry.

公开(公告)号：US20240304133A1

公开(公告)日：2024-09-12

申请号：US18180697

申请日：2023-03-08

Applicant: Apple Inc.

Inventor： Vincent Z Young ,  Mahesh B Chappalli ,  Tae-Wook Koh ,  Yifan Zhang ,  Jared S Price

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/046

Abstract: Image processing circuitry may include burn-in compensation circuitry that receives image data indicative of luminance outputs for display pixels of an electronic display and compensates the image data for burn-in related aging associated with the display pixels, generating compensated image data. Moreover, compensating the image data may include applying gains based on estimated amounts of aging associated with the display pixels and estimated amounts of current to be delivered to the display pixels. The image processing circuitry may also include burn-in statistics circuitry that tracks the estimated amounts of aging based on the compensated image data.

公开(公告)号：US11276369B2

公开(公告)日：2022-03-15

申请号：US15948796

申请日：2018-04-09

Applicant: Apple Inc.

Inventor： Tobias Jung ,  Marc Albrecht ,  Paul S. Drzaic ,  Tae-Wook Koh ,  Teun R. Baar ,  Yifan Zhang ,  Ramin Samadani ,  Nicolas P. Bonnier

IPC: G09G5/10 ,  G09G3/20

Abstract: Systems, methods, and devices are provided to reduce a likelihood of image burn-in on an electronic display. Such an electronic device may include image processing circuitry and an electronic display. The image processing circuitry may receive image data and analyze the image data for risk of image burn-in and, based at least in part on the analysis of the image data, reduce a risk of image burn-in at least in part by reducing a local maximum pixel luminance value in at least one of a plurality of regions of the image data over time or by reducing a dynamic range headroom of the image data. The electronic display may display the image data with a reduced risk of image burn-in on the pixels of the electronic display.