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：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：US20190086992A1

公开(公告)日：2019-03-21

申请号：US16028199

申请日：2018-07-05

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Hyunwoo Nho ,  Hyunsoo Kim ,  Shengkui Gao ,  Chun Lu ,  Sinan Alousi ,  Chin-Wei Lin ,  Jesse Aaron Richmond ,  Yafei Bi ,  Injae Hwang ,  Haifeng Li ,  Mohammad Hajirostam

IPC: G06F1/32 ,  G09G3/3258

Abstract: An electronic display includes an active area having an array of pixels. The electronic display also includes multiple data power rails coupled to the active area that supply power to the array of pixels. The electronic display further includes data driving circuitry coupled to the multiple data power rails that drive the array of pixels. The electronic display also includes a controller coupled to the data driving circuitry having a processor. The processor causes the array of pixels to emit light based on a display brightness value. The processor also causes a pixel of the array of pixels to emit light at a brightness of gray level 0 by dynamically adjusting a data power rail of the multiple data power rails.

公开(公告)号：US20240013692A1

公开(公告)日：2024-01-11

申请号：US18212710

申请日：2023-06-21

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Ardra Singh ,  Arthur L. Spence ,  Christopher P. Tann ,  Chun Lu ,  Daniel J. Drusch ,  Hyunwoo Nho ,  Jongyup Lim ,  Kingsuk Brahma ,  Marc J. DeVincentis ,  Mohammad Ali Jangda ,  Paolo Sacchetto ,  Peter F. Holland ,  Shawn P. Hurley ,  Wei H. Yao ,  Yue Jack Chu ,  Zhe Hua

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2330/021 ,  G09G2360/16 ,  G09G2320/103

Abstract: To reduce overall power consumption for an electronic display power management integrated circuit (PMIC), one of multiple electric power converters and/or electric power regulators may be selected based on an electrical load (e.g., due to the total brightness of the content displayed) on the electronic display at a given moment. In some embodiments, the PMIC may include a less efficient heavy load converter designed with high-current handling capability and a more efficient light load (e.g., low current) converter with lower current handling capability. A controller may dynamically select between the converters depending on a present load or an expected load on the electronic display.