公开(公告)号：US12170271B2

公开(公告)日：2024-12-17

申请号：US17398952

申请日：2021-08-10

Applicant: Apple Inc.

Inventor： Xiaofan Niu ,  Sunggu Kang ,  Mohammad Yeke Yazdandoost ,  Giovanni Gozzini ,  Xia Li ,  Oray O. Cellek ,  Sandeep Chalasani ,  Steven E. Molesa ,  Jaein Choi

IPC: H01L25/16 ,  G09G3/32

Abstract: A micro-light-emitting diode (LED) display includes a number of micro-LED pixel elements and multiple optical sensors integrated with the micro-LED pixel elements. A transparent conductor layer is disposed over the micro-LED pixel elements and optical sensors.

公开(公告)号：US20240170471A1

公开(公告)日：2024-05-23

申请号：US18551374

申请日：2022-03-22

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Kapil V. Sakariya ,  Waldemar J. Siskens ,  Han-Chieh Chang ,  Xia Li ,  Yong Sun ,  Izhar Z. Ahmed ,  Bulong Wu

IPC: H01L25/16 ,  H01L25/075 ,  H01L27/12 ,  H01L27/15 ,  H01L33/24 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L25/0753 ,  H01L27/124 ,  H01L27/156 ,  H01L33/24 ,  H01L33/62

Abstract: Display structures and methods of assembly are described. In an embodiment, a display structure includes a display panel including a pattern of trenches extending at least partially through a backplane of the display panel, without extending past a matrix of LEDs in an overlying emission layer stack. The plurality of trenches can be formed in 2D to facilitate bending of the display panel into a 3D film curvature.

公开(公告)号：US11749180B2

公开(公告)日：2023-09-05

申请号：US17662212

申请日：2022-05-05

Applicant: Apple Inc.

Inventor： Hjalmar Edzer Ayco Huitema ,  Thomas Charisoulis ,  Xia Li

IPC: G09G3/32 ,  G09G3/20 ,  H01L25/16 ,  H01L27/12

CPC classification number: G09G3/32 ,  G09G3/2003 ,  H01L25/167 ,  H01L27/124 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2320/043 ,  G09G2320/0626

Abstract: A local active matrix display panel, circuits and methods of operation are described. In an embodiment, a local active matrix display panel includes an array of pixel driver chip, a thin film transistor layer in electrical contact with the array of pixel driver chips, and an array of light emitting diodes electrically connected with the thin film transistor layer.

公开(公告)号：US11355056B2

公开(公告)日：2022-06-07

申请号：US17161467

申请日：2021-01-28

Applicant: Apple Inc.

Inventor： Hjalmar Edzer Ayco Huitema ,  Thomas Charisoulis ,  Xia Li

IPC: G09G3/32 ,  G09G3/20 ,  H01L25/16 ,  H01L27/12

Abstract: A local active matrix display panel, circuits and methods of operation are described. In an embodiment, a local active matrix display panel includes an array of pixel driver chip, a thin film transistor layer in electrical contact with the array of pixel driver chips, and an array of light emitting diodes electrically connected with the thin film transistor layer.

公开(公告)号：US10665578B2

公开(公告)日：2020-05-26

申请号：US15908478

申请日：2018-02-28

Applicant: Apple Inc.

Inventor： Edzer Huitema ,  Vaibhav Patel ,  Tore Nauta ,  Xia Li ,  Hsin-Hua Hu

IPC: H01L21/78 ,  H01L25/16 ,  H01L23/00 ,  H01L33/62 ,  H01L21/56 ,  H01L21/683 ,  H01L25/075

Abstract: Embodiments describe a display integration scheme in which an array of pixel driver chips embedded front side up in an insulator layer. A front side redistribution layer (RDL) spans across and is in electrical connection with the front sides of the array of pixel driver chips, and an array of light emitting diodes (LEDs) is bonded to the front side RDL. The pixel driver chips may be located directly beneath the display area of the display panel.

公开(公告)号：US20250022407A1

公开(公告)日：2025-01-16

申请号：US18742756

申请日：2024-06-13

Applicant: Apple Inc.

Inventor： Majid Gharghi ,  Tore Nauta ,  Saif Choudhary ,  Chuang Qian ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Xia Li ,  Patrick B Bennett ,  Ze Yuan

IPC: G09G3/32

Abstract: A pulse width modulation and amplitude modulation driving system for a display panel, including related circuits and methods of operation, are described. In an embodiment, a display panel includes a thin film transistor layer comprising a plurality of subpixel circuits. Each subpixel circuit may include a drive transistor, a comparator, and a switch. A plurality of light emitting diodes (LEDs), such as micro-LEDs, may be connected to the plurality of subpixel circuits. Each subpixel circuit can control an LED based on a current amplitude controlled by the drive transistor and a current pulse width controlled by the comparator and the switch. Other aspects are also described and claimed.

公开(公告)号：US12125431B2

公开(公告)日：2024-10-22

申请号：US18350366

申请日：2023-07-11

Applicant: Apple Inc.

Inventor： Hjalmar Edzer Ayco Huitema ,  Thomas Charisoulis ,  Xia Li

IPC: G09G3/32 ,  G09G3/20 ,  H01L25/16 ,  H01L27/12

CPC classification number: G09G3/32 ,  G09G3/2003 ,  H01L25/167 ,  H01L27/124 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2320/043 ,  G09G2320/0626

Abstract: A local active matrix display panel, circuits and methods of operation are described. In an embodiment, a local active matrix display panel includes an array of pixel driver chip, a thin film transistor layer in electrical contact with the array of pixel driver chips, and an array of light emitting diodes electrically connected with the thin film transistor layer.

公开(公告)号：US20230360593A1

公开(公告)日：2023-11-09

申请号：US18350366

申请日：2023-07-11

Applicant: Apple Inc.

Inventor： Hjalmar Edzer Ayco Huitema ,  Thomas Charisoulis ,  Xia Li

IPC: G09G3/32 ,  G09G3/20 ,  H01L25/16 ,  H01L27/12

CPC classification number: G09G3/32 ,  G09G3/2003 ,  H01L25/167 ,  H01L27/124 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2320/043 ,  G09G2320/0626

Abstract: A local active matrix display panel, circuits and methods of operation are described. In an embodiment, a local active matrix display panel includes an array of pixel driver chip, a thin film transistor layer in electrical contact with the array of pixel driver chips, and an array of light emitting diodes electrically connected with the thin film transistor layer.

公开(公告)号：US20230091644A1

公开(公告)日：2023-03-23

申请号：US17853261

申请日：2022-06-29

Applicant: Apple Inc.

Inventor： Thomas Charisoulis ,  Saif Choudhary ,  Xia Li ,  Tore Nauta

IPC: G09G3/20 ,  G09G3/3233

Abstract: A display system of a display includes a first light emitting diode, a second light emitting diode, a current source, and at least one transistor. The first and the second light emitting diodes emit light. The current source provides a constant current to the first light emitting diode and the second light emitting diode. Moreover, the at least one transistor removes the current or shunts the current towards the first light emitting diode, the second light emitting diode, or both. Removing the current or shunting the current towards the first light emitting diode, the second light emitting diode, or both, may blend outputs of the first light emitting diode and the second light emitting diode.

公开(公告)号：US20230090344A1

公开(公告)日：2023-03-23

申请号：US17894942

申请日：2022-08-24

Applicant: Apple Inc.

Inventor： Sandeep Chalasani ,  Steven E Molesa ,  Anatole Huang ,  Mahdi Farrokh Baroughi ,  Xia Li ,  Yongjie Jiang ,  Mittul Gupta ,  Stanley B Wang

IPC: G09G3/32

Abstract: A display may be formed by an array of light-emitting diodes mounted to the surface of a display substrate. The light-emitting diodes may be inorganic light-emitting diodes formed from separate crystalline semiconductor structures. An array of pixel control circuits may be used to control light emission from the light-emitting diodes. Each pixel control circuit may be conred to control one or more respective passive matrices. To control partial pixel cells in the display, a donor pixel control circuit in a partial pixel cell may control the pixels in a receptor partial pixel cell without a pixel control circuit. To mitigate the size of an inactive area of the display, fanout signal lines for the display may be formed in the light-emitting active area of the display. The fanout signal lines may be formed between a row of pixel control circuits and a bottom edge of the light-emitting active area.