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：US11657742B1

公开(公告)日：2023-05-23

申请号：US17399974

申请日：2021-08-11

Applicant: Apple Inc.

Inventor： Hasan Akyol ,  Chung-Lun Edwin Hsu ,  Baris Cagdaser ,  John T. Wetherell ,  Xuebei Yang ,  Ali Tabatabaei ,  Patrick Bryce Bennett ,  Yingkan Lin ,  Chun-Ming Tang ,  Xiaofeng Wang ,  Hopil Bae

IPC: G09G3/00 ,  G09G3/3258 ,  G09G3/3275

CPC classification number: G09G3/006 ,  G09G3/3258 ,  G09G3/3275 ,  G09G2320/04 ,  G09G2330/12

Abstract: Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.

公开(公告)号：US10417964B1

公开(公告)日：2019-09-17

申请号：US15947687

申请日：2018-04-06

Applicant: Apple Inc.

Inventor： Cheuk Chi Lo ,  Chun-Ming Tang ,  Chun-Yao Huang ,  Ivan Knez

IPC: G09G5/00 ,  G09G3/3233 ,  H01L27/12 ,  H01L27/32 ,  H01L27/146

Abstract: A display with an array of pixels may be provided with redundant pixel control circuits. Switching circuitry may be used to couple pixel control circuits to light-emitting diodes for the pixels. The switching circuitry can be configured using control signals from non-volatile memory in decoder circuitry such as thermometer code decoder circuitry. During manufacturing, the display may be inspected for defects. Defective pixel control circuits can be replaced with redundant pixel control circuits so that the display operates satisfactory. The decoder circuitry may supply control signals to the switching circuitry to switch redundant pixel control circuitry into use while bypassing defective pixel control circuits.

公开(公告)号：US20220101790A1

公开(公告)日：2022-03-31

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

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：US20200066815A1

公开(公告)日：2020-02-27

申请号：US16604491

申请日：2018-04-27

Applicant: Apple Inc.

Inventor： Jaein Choi ,  Andrew Lin ,  Cheuk Chi Lo ,  Chun-Yao Huang ,  Gloria Wong ,  Hairong Tang ,  Hitoshi Yamamoto ,  James E. Pedder ,  KiBeom Kim ,  Kwang Ohk Cheon ,  Lei Yuan ,  Michael Slootsky ,  Rui Liu ,  Steven E. Molesa ,  Sunggu Kang ,  Wendi Chang ,  Chun-Ming Tang ,  Cheng Chen ,  Ivan Knez ,  Enkhamgalan Dorjgotov ,  Giovanni Carbone ,  Graham B. Myhre ,  Jungmin Lee

IPC: H01L27/32 ,  H01L51/56

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.

公开(公告)号：US20250081730A1

公开(公告)日：2025-03-06

申请号：US18755498

申请日：2024-06-26

Applicant: Apple Inc.

Inventor： Andrew Lin ,  Alper Ozgurluk ,  Chao Liang Chien ,  Cheuk Chi Lo ,  Chia-Yu Chen ,  Chien-Chung Wang ,  Chih Pang Chang ,  Chih-Hung Yu ,  Chih-Wei Chang ,  Chin Wei Hsu ,  ChinWei Hu ,  Chun-Kai Tzeng ,  Chun-Ming Tang ,  Chun-Yao Huang ,  Hung-Che Ting ,  Jung Yen Huang ,  Lungpao Hsin ,  Shih Chang Chang ,  Tien-Pei Chou ,  Wen Sheng Lo ,  Yu-Wen Liu ,  Yung Da Lai

IPC: H10K59/121 ,  H10K59/131

Abstract: A display may include an array of pixels such as light-emitting diode pixels. The pixels may include multiple circuitry decks that each include one or more circuit components such as transistors, capacitors, and/or resistors. The circuitry decks may be vertically stacked. Each circuitry deck may include a planarization layer formed from a siloxane material that conforms to underlying components and provides a planar upper surface. In this way, circuitry components may be vertically stacked to mitigate the size of each pixel footprint. The circuitry components may include capacitors that include both a high-k dielectric layer and a low-k dielectric layer. The display pixel may include a via with a width of less than 1 micron.

公开(公告)号：US20240096285A1

公开(公告)日：2024-03-21

申请号：US18358752

申请日：2023-07-25

Applicant: Apple Inc.

Inventor： Alper Ozgurluk ,  Andrew Lin ,  Cheuk Chi Lo ,  Chun-Ming Tang ,  Shinya Ono ,  Chun-Yao Huang

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A display may include an array of pixels. A pixel can include an organic light-emitting diode, up to three thin-film transistors, and up to two capacitors. The pixel can include a drive transistor, an emission transistor, and a select transistor. The select transistor can be used to apply a reference voltage to the gate of the drive transistor during a global reset phase and during a global threshold voltage sampling phase and can also be used to apply a data voltage to the gate of the drive transistor during a data programming phase. The drive transistor can receive a power supply voltage that toggles between a low voltage during the global reset phase and a high voltage during other phases of operation. Configured and operated in this way, the pixel need not include separate dedicated anode reset and initialization transistors.

公开(公告)号：US11309372B2

公开(公告)日：2022-04-19

申请号：US16604491

申请日：2018-04-27

Applicant: Apple Inc.

Inventor： Jaein Choi ,  Andrew Lin ,  Cheuk Chi Lo ,  Chun-Yao Huang ,  Gloria Wong ,  Hairong Tang ,  Hitoshi Yamamoto ,  James E. Pedder ,  KiBeom Kim ,  Kwang Ohk Cheon ,  Lei Yuan ,  Michael Slootsky ,  Rui Liu ,  Steven E. Molesa ,  Sunggu Kang ,  Wendi Chang ,  Chun-Ming Tang ,  Cheng Chen ,  Ivan Knez ,  Enkhamgalan Dorjgotov ,  Giovanni Carbone ,  Graham B. Myhre ,  Jungmin Lee

IPC: H01L27/32 ,  H01L27/12 ,  H01L51/56

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.