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：US11568787B2

公开(公告)日：2023-01-31

申请号：US17465056

申请日：2021-09-02

Applicant: Apple Inc.

Inventor： Kapil V. Sakariya ,  Tore Nauta ,  Hopil Bae ,  Henry C. Jen

IPC: G09G3/32 ,  G09G3/20

Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.

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.

公开(公告)号：US11138918B2

公开(公告)日：2021-10-05

申请号：US17088903

申请日：2020-11-04

Applicant: Apple Inc.

Inventor： Kapil V. Sakariya ,  Tore Nauta ,  Hopil Bae ,  Henry C. Jen

IPC: G09G3/32 ,  G09G3/20

Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.

公开(公告)号：US10891882B1

公开(公告)日：2021-01-12

申请号：US15910886

申请日：2018-03-02

Applicant: Apple Inc.

Inventor： Mahdi Farrokh Baroughi ,  Mohammad B. Vahid Far ,  Xiang Lu ,  Bo Yang ,  Derek K. Shaeffer ,  Henry C. Jen ,  Hopil Bae

IPC: G09G3/00 ,  G09G3/36

Abstract: The present techniques are capable of identifying and pinpointing defective microdrivers and/or row/column drivers either before or after any μLEDs have been placed on the display. Using the architectures described herein, test data may be delivered in a parallel fashion to the drivers from support circuitry, such as a timing controller and/or a main board, and outputs based on the test data may be similarly delivered back to the support circuitry do determine which drivers are defective. This yields access to the output of every microdriver and row drier, thus enabling the identification of specific defective elements.

公开(公告)号：US10762836B1

公开(公告)日：2020-09-01

申请号：US15275023

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： Hopil Bae ,  Wei H. Yao ,  Mohammad B. Vahid Far ,  Yafei Bi ,  Xiaofeng Wang ,  Thomas Charisoulis ,  Hasan Akyol ,  Henry C. Jen ,  Derek K. Shaeffer

IPC: G09G3/3233

Abstract: An electronic display row drivers or column drivers that send reference currents or voltages to microdrivers to be used to drive micropixels to particular levels. The microdrivers, in turn, ship current to micropixels that display images based at least in part on the shipped current.

公开(公告)号：US20190088204A1

公开(公告)日：2019-03-21

申请号：US16132322

申请日：2018-09-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chih-Wei Yeh ,  Yunhui Hou ,  Chaohao Wang ,  Wei H. Yao ,  Paolo Sacchetto ,  Derek K. Shaeffer ,  Henry C. Jen ,  Shingo Hatanaka ,  Hasan Akyol ,  Mahdi Farrokh Baroughi ,  Hopil Bae

IPC: G09G3/3258

Abstract: A mobile electronic device includes a display having an active array and a reference array. The active array includes a pixel and the reference array includes a reference pixel. The mobile electronic device also includes processing circuitry communicatively coupled to the display. The processing circuitry is configured to instruct the active array to drive the pixel based at least in part on a current-voltage relationship of the pixel and a reference current-voltage relationship of the reference pixel.

公开(公告)号：US12080201B2

公开(公告)日：2024-09-03

申请号：US18468654

申请日：2023-09-15

Applicant: Apple Inc.

Inventor： Christian M. Sauer ,  Christoph H. Krah ,  Derek K. Shaeffer ,  Hasan Akyol ,  Henry C. Jen ,  John T. Wetherell

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/32 ,  H01L27/15

CPC classification number: G09G3/32 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  H01L27/156 ,  G09G2354/00

Abstract: An integrated touchscreen can include light emitting diodes or organic light emitting diodes (LEDs/OLEDs), display chiplets and touch chiplets disposed in a visible area of the integrated touch screen. For example, the LEDs/OLEDs, display chiplets and touch chiplets can be placed on a substrate by a micro-transfer tool. The integrated touchscreen can also include electrodes disposed in the visible area of the integrated touch screen. The electrodes can be capable of providing display functionality via the one or more display chiplets during display operation (e.g., operating as cathode terminals of the LEDs during the display operation) and capable of providing touch functionality via the touch chiplets during touch operation (e.g., touch node electrodes can be formed from groups of the electrodes and sensed). In some examples, the touch node electrodes can be formed and coupled to touch chiplets via the display chiplets.

公开(公告)号：US12027117B2

公开(公告)日：2024-07-02

申请号：US17472322

申请日：2021-09-10

Applicant: Apple Inc.

Inventor： John T. Wetherell ,  Cheuk Chi Lo ,  Chun-Yao Huang ,  Lingtao Wang ,  Derek Keith Shaeffer ,  Henry C. Jen ,  Hasan Akyol ,  Xuebei Yang ,  Chung-Lun Edwin Hsu ,  Patrick Bryce Bennett ,  Chun-Ming Tang ,  Yingkan Lin ,  Sheng Zhang ,  Chaohao Wang ,  Runjie Xu ,  Shingo Hatanaka

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0693 ,  G09G2330/10 ,  G09G2360/145

Abstract: Systems and methods may reduce or eliminate image artifacts due to a defective pixel of an electronic display. An electronic display may include pixels that respectively include a self-emissive element, pixel drive circuitry that supplies a pixel drive current to drive the self-emissive element, and signal routing circuitry that reduces or eliminates a visual artifact due to a defective pixel among the pixels. The signal routing circuitry may do this by turning off the self-emissive element, supplying image data from the pixel drive circuitry to a first adjacent pixel, or receiving image data from other pixel drive circuitry from the first adjacent pixel or a second adjacent pixel.

公开(公告)号：US20230316998A1

公开(公告)日：2023-10-05

申请号：US18295619

申请日：2023-04-04

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 ,  G09G3/20 ,  H05B45/20 ,  H10K59/17

CPC classification number: G09G3/3216 ,  G09G3/2003 ,  H05B45/20 ,  H10K59/17 ,  G09G2310/0264 ,  G09G2310/0243

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.