公开(公告)号：US20250157378A1

公开(公告)日：2025-05-15

申请号：US18893620

申请日：2024-09-23

Applicant: Apple Inc.

Inventor： Maofeng Yang ,  Aaron J Perley ,  Arthur L Spence ,  Chung Kai Chow ,  David A Doyle ,  Giovanni Azzellino ,  Jen-Wei Tsai ,  Kyung Hoae Koo ,  Michael H Lim ,  Pankul Dhingra ,  Rangarajan Krishnan ,  Sreenath Rao Vantaram ,  Weijun Yao ,  Xiaqing Dong

IPC: G09G3/20

Abstract: An electronic device may include an electronic display having display pixels and pixel drive circuitry that selects an analog voltage for the display pixels based on a first gray-to-voltage mapping and display image data that is based on compensated image data. The electronic display may also include image processing circuitry that receives input image data in a gray level domain, converts the input image data to a voltage domain based on a second gray-to-voltage mapping different from the first, and applies voltage compensations to voltage levels of the input image data in the voltage domain to generate compensated voltage data. The image processing circuitry may also convert the compensated voltage data from the voltage domain to the gray level domain to generate the compensated image data based on a voltage-to-gray mapping that is the inverse of the first gray-to-voltage mapping.

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.

公开(公告)号：US20240105089A1

公开(公告)日：2024-03-28

申请号：US18470290

申请日：2023-09-19

Applicant: Apple Inc.

Inventor： William Matthew Pender Paul ,  Mario Martinis ,  Jiayi Jin ,  Yongjie Jiang ,  Baris Posat ,  Mojtaba Fallahpour ,  Haitao Li ,  James G. Horiuchi ,  Giovanni Azzellino ,  Weijun Yao ,  Stanley B. Wang ,  Mahdi Farrokh Baroughi

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/08 ,  G09G2330/021

Abstract: Electronic displays and electronic devices including such electronic displays and antennas are provided for improved transmission of signals through circuitry of the electronic display. The electronic display may include multiple power supply tiles that are separated with non-conductive gaps to reduce circulation of eddy currents induced by the transmission signals. Moreover, voltage supply routing paths within the power supply tiles may be grouped to provide non-conductive gaps within the power supply tiles. Accordingly, the antenna may provide the transmission signals through the electronic display with improved efficiency based on reducing surface currents (e.g., eddy currents) on the electronic display.