公开(公告)号：US20240170625A1

公开(公告)日：2024-05-23

申请号：US18551985

申请日：2022-03-07

Applicant: Apple Inc.

Inventor： Saijin Liu ,  Tongbi T Jiang ,  Rong Liu

IPC: H01L33/58 ,  H01L25/16

CPC classification number: H01L33/58 ,  H01L25/167

Abstract: An electronic device may include a display having an array of light-emitting diodes mounted to a driver die with driver circuitry for controlling the light-emitting diodes. The diodes may include contact pads. Contact pads for one of the diode terminals (e.g., the anodes or the cathodes) may be individually addressable, whereas the other diode terminals may share a common contact pad. The individually addressable contact pads and the common contact pad may be vertically stacked to improve thermal dissipation. The common contact pad may be interposed between the driver die and the individually addressable contact pads. Alternatively, the individually addressable contact pads may be interposed between the driver die and the common contact pad. Each LED array may have a dedicated driver die or one driver die may be shared between multiple LED arrays. A single LED array may include LEDs of multiple different colors.

公开(公告)号：US20230361154A1

公开(公告)日：2023-11-09

申请号：US18180763

申请日：2023-03-08

Applicant: Apple Inc.

Inventor： Ziruo Hong ,  Ganghun Kim ,  Jun Qi ,  Rong Liu ,  Saijin Liu ,  Tongbi T Jiang ,  Victor H Yin

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: An electronic device may have one or more displays that produce images for a user. The display may include an array of light-emitting diodes. Each light-emitting diode in the array of light-emitting diodes may include a plurality of vias. The vias may be arranged in an array of rows and columns. The light-emitting diodes in the array may share a common cathode. The common cathode may include a conductive layer formed from a reflective material. The conductive layer may be formed in a grid that defines a plurality of openings for the light-emitting diodes or may be formed around the periphery of the array. The array may include light-emitting diodes of two different colors in a head-to-tail arrangement, connected in series, or that share a common cathode. The array may include light-emitting diodes of three different colors that are vertically stacked.