公开(公告)号：US20230087088A1

公开(公告)日：2023-03-23

申请号：US17894935

申请日：2022-08-24

Applicant: Apple Inc.

Inventor： Mahdi Farrokh Baroughi ,  Sandeep Chalasani ,  Xiang Lu ,  Anurag Mehta ,  Hopil Bae ,  Chaohao Wang ,  Rajesh Velayuthan ,  Steven E. Molesa ,  Yaser Azizi ,  Young Don Bae ,  Sunmin Jang ,  Haitao Li ,  Hari P. Paudel ,  Anatole Huang ,  Tyler R. Kakuda ,  David A. Doyle ,  Wei H. Yao ,  Majid Gharghi ,  Vaibhav D. Patel

IPC: H01L27/15 ,  H01L33/62 ,  G09G3/32 ,  H01L33/38

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 configured 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.

公开(公告)号：US20250078731A1

公开(公告)日：2025-03-06

申请号：US18618916

申请日：2024-03-27

Applicant: Apple Inc.

Inventor： Baris Posat ,  Rajesh Velayuthan ,  Hooman Torabi Parizi ,  Young Don Bae ,  Hasan Akyol

IPC: G09G3/32

Abstract: In an embodiment, an electronic display may include an electronic display panel that includes a plurality of display pixels configured to emit light; a first pre-charge voltage source; and a second pre-charge voltage source; and a microdriver that may include: a capacitor coupled at a first terminal to the first pre-charge voltage source and coupled at a second terminal to the second pre-charge voltage source; and a buffer. The buffer may include a positive input terminal coupled to the first pre-charge voltage source and the capacitor; an output terminal coupled to a plurality of driving circuits; and a negative input terminal coupled to the output terminal.

公开(公告)号：US20240012515A1

公开(公告)日：2024-01-11

申请号：US18212099

申请日：2023-06-20

Applicant: Apple Inc.

Inventor： Pablo Moreno Galbis ,  Xiang Lu ,  Bin Huang ,  Ling Zhang ,  Nikhil Acharya ,  Derek K. Shaeffer ,  Stanley B. Wang ,  Yongjie Jiang ,  Hopil Bae ,  Jiayi Jin ,  Ce Zhang ,  Young Don Bae ,  Giovanni Azzellino ,  Wooseung Yang ,  Mahdi Farrokh Baroughi ,  Weijun Yao ,  Rajesh Velayuthan ,  Eric A. Hildebrandt ,  Henry C. Jen

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F2203/04107 ,  G06F3/044

Abstract: Touch sensitive display technologies (e.g., integrated touch-display pixel-based systems) are evolving to contain more analog and digital circuits inside the panel itself instead of the traditionally simple thin-film transistors. This improves the display characteristics but makes those circuits more vulnerable to the impact of external ESD strikes, which can degrade the user experience. This disclosure describes a series of circuits and techniques to mitigate the impact of these discharges on front of screen artifacts and potential false touches. These circuits and techniques may include: performing configuration-only panel updates independently of the image refresh rate, improving the in-panel memory circuits to make them resistant to unexpected pin toggles via disabling of a write path in response to a read clock, implementing a pin corruption detector and implementing a supply injection detector.