公开(公告)号：US11756505B2

公开(公告)日：2023-09-12

申请号：US17217827

申请日：2021-03-30

Applicant: Apple Inc.

Inventor： Yang Xu ,  Jie Won Ryu ,  Kingsuk Brahma ,  Koorosh Aflatooni ,  Marc Joseph DeVincentis ,  Mohammad Ali Jangda ,  Paolo Sacchetto ,  Shengkui Gao ,  Sinan Alousi ,  Yafei Bi ,  Chun Lu

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2320/0233 ,  G09G2320/0633 ,  G09G2340/16 ,  G09G2360/141

Abstract: Systems, methods, and devices are provided for providing intra-frame luminance scaling to avoid drawing excessive power while still providing exceptional brightness. An instantaneous average pixel luminance of an electronic display may be determined. The instantaneous average pixel luminance may correspond to an amount of light currently being emitted by the electronic display due to a previous image frame and a current image frame. Based at least in part on the instantaneous average pixel luminance, the luminance of a subset of pixels of image data of the current image frame may be adjusted, thereby allowing the electronic display to operate at a relatively high brightness level without exceeding a power limit.

公开(公告)号：US20230169936A1

公开(公告)日：2023-06-01

申请号：US18160495

申请日：2023-01-27

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei H. Yao

IPC: G09G5/10 ,  G06V40/13

CPC classification number: G09G5/10 ,  G06V40/1318 ,  G06V40/13 ,  G09G2320/0626 ,  G09G2360/148 ,  G09G2360/144

Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

公开(公告)号：US11302264B2

公开(公告)日：2022-04-12

申请号：US16510755

申请日：2019-07-12

Applicant: Apple Inc.

Inventor： Shengkui Gao ,  Marc Joseph DeVincentis ,  Yue Jack Chu ,  Sinan Alousi ,  Mohammad Hajirostam ,  Mohammad Ali Jangda ,  Koorosh Aflatooni ,  Pierre-Yves Emelie ,  Yafei Bi ,  Paolo Sacchetto ,  Kasra Omid-Zohoor

IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/36 ,  H01L27/32

Abstract: A display device may include rows of pixels that display image data on a display and a circuit. The circuit may receive pixel data value of image data for a pixel in a first row of the rows of pixels, determine a weight factor to apply to the pixel data value based on a position of the first row with respect to the other rows, such that each row is associated with a current-resistance (IR) drop across the display. The weight factor is determined based on a respective IR drop associated with the first row. The circuit may also generate a weighted pixel data value based on the weight factor and the pixel data value and send the weighted pixel data value to a display driver circuit that renders the image data via the display.

公开(公告)号：US20210304703A1

公开(公告)日：2021-09-30

申请号：US17217827

申请日：2021-03-30

Applicant: Apple Inc.

Inventor： Yang Xu ,  Jie Won Ryu ,  Kingsuk Brahma ,  Koorosh Aflatooni ,  Marc Joseph DeVincentis ,  Mohammad Ali Jangda ,  Paolo Sacchetto ,  Shengkui Gao ,  Sinan Alousi ,  Yafei Bi ,  Chun Lu

IPC: G09G5/10

Abstract: Systems, methods, and devices are provided for providing intra-frame luminance scaling to avoid drawing excessive power while still providing exceptional brightness. An instantaneous average pixel luminance of an electronic display may be determined. The instantaneous average pixel luminance may correspond to an amount of light currently being emitted by the electronic display due to a previous image frame and a current image frame. Based at least in part on the instantaneous average pixel luminance, the luminance of a subset of pixels of image data of the current image frame may be adjusted, thereby allowing the electronic display to operate at a relatively high brightness level without exceeding a power limit.

公开(公告)号：US20200341512A1

公开(公告)日：2020-10-29

申请号：US16398093

申请日：2019-04-29

Applicant: Apple Inc.

Inventor： Guocheng Shao ,  Dong Zheng ,  Christopher M. Dodson ,  Kenneth J. Vampola ,  Koorosh Aflatooni

IPC: G06F1/16 ,  G09G3/34

Abstract: An electronic device may have a display with an array of pixels that display images for a user. The electronic device may have an ambient light sensor for gathering ambient light information. A subset of the pixels in the array of pixels may overlap the ambient light sensor so that ambient light passing through the subset of pixels may be measured. Each pixel may have an emission enable transistor coupled in series with a light-emitting diode. Control circuitry in the electronic device may disable the subset of pixels to reduce stray light during ambient light measurements while enabling remaining pixels in the array of pixels to display an image. Ambient light sensor circuitry may gather ambient light sensor measurements over one or more periods by using transfer transistors to transfer change from the photodetectors to charge storage capacitors formed from floating diffusions in a common substrate.

公开(公告)号：US10304411B2

公开(公告)日：2019-05-28

申请号：US15347611

申请日：2016-11-09

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Sang Y. Youn ,  Mohammad Hajirostam ,  Yun Wang

IPC: G09G3/32 ,  G09G5/10

Abstract: Display panels and methods for operating a display panel are described. In an embodiment, the display panel includes a plurality of pixels arranged in rows and columns, a plurality of rows of emission control lines extending through the plurality of rows of pixels, and a global emission line coupled to the plurality of rows of emission control lines. Modes of operation of the display panel include global flash mode and low persistence mode.

公开(公告)号：US20180061366A1

公开(公告)日：2018-03-01

申请号：US15347611

申请日：2016-11-09

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Sang Y. Youn ,  Mohammad Hajirostam ,  Yun Wang

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G3/32 ,  G09G2300/0809 ,  G09G2310/0205 ,  G09G2310/0218 ,  G09G2310/0267 ,  G09G2310/08

Abstract: Display panels and methods for operating a display panel are described. In an embodiment, the display panel includes a plurality of pixels arranged in rows and columns, a plurality of rows of emission control lines extending through the plurality of rows of pixels, and a global emission line coupled to the plurality of rows of emission control lines. Modes of operation of the display panel include global flash mode and low persistence mode.