公开(公告)号：US11527582B1

公开(公告)日：2022-12-13

申请号：US17006708

申请日：2020-08-28

Applicant: Apple Inc.

Inventor： Niva A. Ran ,  Aleksandr N. Polyakov ,  Lun Tsai ,  Meng-Huan Ho ,  Mohammad Yeke Yazdandoost

IPC: H01L27/28 ,  H01L27/32 ,  H01L27/30

Abstract: An electronic device includes a frame and a display stack. The frame defines a first part of an interior volume. The display stack includes a cover attached to the frame. The cover may define a second part of the interior volume. The display stack also includes an array of organic light-emitting diodes (OLEDs) including an array of emissive electroluminescent (EL) regions, and at least one organic photodetector (OPD) disposed between the cover and at least one emissive EL region in the array of emissive electroluminescent regions. The at least one emissive EL region emits light through the at least one OPD. In alternative embodiments, the OLEDs may be stacked on the OPDs, or the OLEDs and OPDs may be interspersed with each other instead of stacked.

公开(公告)号：US11910654B1

公开(公告)日：2024-02-20

申请号：US17395381

申请日：2021-08-05

Applicant: Apple Inc.

Inventor： Po-Chun Yeh ,  Jiun-Jye Chang ,  Doh-Hyoung Lee ,  Caleb Coburn ,  Niva A. Ran ,  Ching-Sang Chuang ,  Themistoklis Afentakis ,  Chuan-Jung Lin ,  Jung Yen Huang ,  Lei Yuan

IPC: H10K59/122 ,  G09G3/3291 ,  H10K59/35 ,  H10K71/00

CPC classification number: H10K59/122 ,  G09G3/3291 ,  H10K59/35 ,  H10K71/00 ,  H10K71/621 ,  G09G2320/0214

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, the display may include active and/or passive leakage-mitigating structures. The passive leakage-mitigating structures may have an undercut that causes discontinuities in the overlying OLED layers. Active leakage-mitigating structures may include a conductive layer (e.g., a conductive ring) that drains leakage current to ground. Alternatively, the active leakage-mitigating structures may include a gate electrode modulator with a variable voltage that stops the current flow laterally.

公开(公告)号：US11422661B2

公开(公告)日：2022-08-23

申请号：US17028775

申请日：2020-09-22

Applicant: Apple Inc.

Inventor： Mohammad Yeke Yazdandoost ,  Lun Tsai ,  Meng-Huan Ho ,  Niva A. Ran ,  Akshay Bhat ,  Volodymyr Borshch ,  Anand K. Chamakura ,  Giovanni Gozzini

IPC: G09G3/3225 ,  G06V40/13 ,  G06F3/042 ,  H01L27/28 ,  H01L31/153 ,  H01L31/173 ,  H01L25/16 ,  H01L27/32 ,  H01L51/52

Abstract: Systems and methods for detection of incident light are described. An optical imaging sensor is positioned at least partially within an active display area of a display and is configured to detect and characterize one or more properties of light incident to the active display area of the display.

公开(公告)号：US11839133B2

公开(公告)日：2023-12-05

申请号：US17200683

申请日：2021-03-12

Applicant: Apple Inc.

Inventor： Markus Einzinger ,  Martijn Kuik ,  Mohammad Yeke Yazdandoost ,  Niva A. Ran

IPC: H01L51/52 ,  H10K65/00 ,  H10K30/30 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16

CPC classification number: H10K65/00 ,  H10K30/30 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16

Abstract: An organic light-emitting diode (OLED) display includes an array of OLED pixels and an array of organic photodetector (OPD) pixels. An OLED pixel in the array of OLED pixels includes an OLED hole transport layer (HTL), an OLED electron transport layer (ETL), and an emissive layer positioned between the OLED HTL and the OLED ETL. An OPD pixel in the array of OPD pixels includes the OLED HTL, the OLED ETL, and an electron donor material positioned between the OLED HTL and the OLED ETL, wherein the OLED ETL functions as an electron acceptor material for the OPD pixel. In other embodiments, the OPD pixel may be configured differently.

公开(公告)号：US20210064159A1

公开(公告)日：2021-03-04

申请号：US17028775

申请日：2020-09-22

Applicant: Apple Inc

Inventor： Mohammad Yeke Yazdandoost ,  Lun Tsai ,  Meng-Huan Ho ,  Niva A. Ran ,  Akshay Bhat ,  Volodymyr Borshch ,  Anand K. Chamakura ,  Giovanni Gozzini

IPC: G06F3/042 ,  H01L27/28 ,  H01L31/153 ,  H01L31/173 ,  H01L25/16 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3225 ,  G06K9/00

Abstract: Systems and methods for detection of incident light are described. An optical imaging sensor is positioned at least partially within an active display area of a display and is configured to detect and characterize one or more properties of light incident to the active display area of the display.

公开(公告)号：US20240284752A1

公开(公告)日：2024-08-22

申请号：US18653007

申请日：2024-05-02

Applicant: Apple Inc.

Inventor： Niva A. Ran ,  Aleksandr N. Polyakov ,  Lun Tsai ,  Meng-Huan Ho ,  Mohammad Yeke Yazdandoost

IPC: H10K59/60 ,  H10K39/32 ,  H10K59/32 ,  H10K59/40

CPC classification number: H10K59/60 ,  H10K39/32 ,  H10K59/32 ,  H10K59/40

Abstract: An electronic device includes a frame and a display stack. The frame defines a first part of an interior volume. The display stack includes a cover attached to the frame. The cover may define a second part of the interior volume. The display stack also includes an array of organic light-emitting diodes (OLEDs) including an array of emissive electroluminescent (EL) regions, and at least one organic photodetector (OPD) disposed between the cover and at least one emissive EL region in the array of emissive electroluminescent regions. The at least one emissive EL region emits light through the at least one OPD. In alternative embodiments, the OLEDs may be stacked on the OPDs, or the OLEDs and OPDs may be interspersed with each other instead of stacked.

公开(公告)号：US12016237B2

公开(公告)日：2024-06-18

申请号：US18079702

申请日：2022-12-12

Applicant: Apple Inc.

Inventor： Niva A. Ran ,  Aleksandr N. Polyakov ,  Lun Tsai ,  Meng-Huan Ho ,  Mohammad Yeke Yazdandoost

IPC: H01L27/14 ,  H10K39/32 ,  H10K59/32 ,  H10K59/40 ,  H10K59/60

CPC classification number: H10K59/60 ,  H10K39/32 ,  H10K59/32 ,  H10K59/40

Abstract: An electronic device includes a frame and a display stack. The frame defines a first part of an interior volume. The display stack includes a cover attached to the frame. The cover may define a second part of the interior volume. The display stack also includes an array of organic light-emitting diodes (OLEDs) including an array of emissive electroluminescent (EL) regions, and at least one organic photodetector (OPD) disposed between the cover and at least one emissive EL region in the array of emissive electroluminescent regions. The at least one emissive EL region emits light through the at least one OPD. In alternative embodiments, the OLEDs may be stacked on the OPDs, or the OLEDs and OPDs may be interspersed with each other instead of stacked.

公开(公告)号：US20230111407A1

公开(公告)日：2023-04-13

申请号：US18079702

申请日：2022-12-12

Applicant: Apple Inc.

Inventor： Niva A. Ran ,  Aleksandr N. Polyakov ,  Lun Tsai ,  Meng-Huan Ho ,  Mohammad Yeke Yazdandoost

IPC: H01L51/00

Abstract: An electronic device includes a frame and a display stack. The frame defines a first part of an interior volume. The display stack includes a cover attached to the frame. The cover may define a second part of the interior volume. The display stack also includes an array of organic light-emitting diodes (OLEDs) including an array of emissive electroluminescent (EL) regions, and at least one organic photodetector (OPD) disposed between the cover and at least one emissive EL region in the array of emissive electroluminescent regions. The at least one emissive EL region emits light through the at least one OPD. In alternative embodiments, the OLEDs may be stacked on the OPDs, or the OLEDs and OPDs may be interspersed with each other instead of stacked.

公开(公告)号：US20220293682A1

公开(公告)日：2022-09-15

申请号：US17200683

申请日：2021-03-12

Applicant: Apple Inc.

Inventor： Markus Einzinger ,  Martijn Kuik ,  Mohammad Yeke Yazdandoost ,  Niva A. Ran

IPC: H01L27/28 ,  H01L51/50 ,  H01L51/42

Abstract: An organic light-emitting diode (OLED) display includes an array of OLED pixels and an array of organic photodetector (OPD) pixels. An OLED pixel in the array of OLED pixels includes an OLED hole transport layer (HTL), an OLED electron transport layer (ETL), and an emissive layer positioned between the OLED HTL and the OLED ETL. An OPD pixel in the array of OPD pixels includes the OLED HTL, the OLED ETL, and an electron donor material positioned between the OLED HTL and the OLED ETL, wherein the OLED ETL functions as an electron acceptor material for the OPD pixel. In other embodiments, the OPD pixel may be configured differently.

公开(公告)号：US20220271254A1

公开(公告)日：2022-08-25

申请号：US17569384

申请日：2022-01-05

Applicant: Apple Inc.

Inventor： Niva A. Ran ,  Michelle C. Sherrott ,  Steven J. Brewer ,  Ping Kuen Daniel Tsang ,  KiBeom Kim ,  Hui Lu ,  Siddharth Harikrishna Mohan

IPC: H01L51/52

Abstract: An electronic device may have a display such as an organic light-emitting diode (OLED) display. The OLED display may have an array of OLED pixels that each have OLED layers interposed between a cathode and an anode. The pixels may be microcavity OLED pixels having optical cavities. The optical cavities may be defined by a partially transparent cathode layer and a reflective anode structure. The distance between the partially transparent cathode layer and the reflective anode structure for a pixel may be selected such that light at the wavelength emitted by the pixel forms a standing wave between the anode and the cathode. The standing wave may have only one anti-node and the emissive layer for the pixel may be aligned with that one anti-node. To mitigate short circuits, a roughness reduction layer and/or short-circuit-reducing layer having a high sheet resistance may be formed between the anode the OLED layers.