公开(公告)号：US20240105115A1

公开(公告)日：2024-03-28

申请号：US18368982

申请日：2023-09-15

Applicant: Apple Inc.

Inventor： Mahdi Farrokh Baroughi ,  Ce Zhang ,  Haitao Li ,  Hari P. Paudel ,  Hopil Bae ,  Jeongsup Lee ,  Nikhil Acharya ,  Pablo Moreno Galbis ,  Seung B. Rim ,  SeyedAli TaheriTari ,  Shengzhe Jiao ,  Stanley B. Wang ,  Sunmin Jang ,  Xiang Lu ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/3216

CPC classification number: G09G3/3216 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/144

Abstract: Electronic devices, displays, and methods are provided for operating an electronic display in coexistence with sensors that could be adversely impacted by the operation of the electronic display. An electronic device may include an electronic display and a sensor. The electronic display may display image content by light emission during an emission period and periodically enter a quiet period in which the light emission of the electronic display is turned off. The sensor may perform sensing operations during the quiet period without interference from the operation of the electronic display.

公开(公告)号：US20240005850A1

公开(公告)日：2024-01-04

申请号：US18334914

申请日：2023-06-14

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Ce Zhang ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Pablo Moreno Galbis ,  Paolo Sacchetto ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/041 ,  G09G2320/0626

Abstract: To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.

公开(公告)号：US10938380B1

公开(公告)日：2021-03-02

申请号：US16707873

申请日：2019-12-09

Applicant: Apple Inc.

Inventor： Mohammadhasan Fayazi ,  Pablo Moreno Galbis ,  Stanley Bo-Ting Wang

IPC: H03K3/03

Abstract: A bias current circuit is disclosed. The bias current circuit includes a number of current sources that can selectively be coupled to a bias current node or an auxiliary node. The bias current may be provided through the bias current node. During a trimming operation, a control circuit may selectively couple particular ones of the current sources to the bias current node, in accordance with a desired bias current. Other ones of the current sources may be coupled to the auxiliary node, through which an auxiliary current is provided. Upon completing the trimming operation, the control circuit may cause the auxiliary current to be reduced to zero.

公开(公告)号：US12236850B2

公开(公告)日：2025-02-25

申请号：US18334914

申请日：2023-06-14

Applicant: Apple Inc.

Inventor： Sunmin Jang ,  Ce Zhang ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Pablo Moreno Galbis ,  Paolo Sacchetto ,  Yaser Azizi ,  Young Don Bae

IPC: G09G3/32

Abstract: To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.

公开(公告)号：US20240420615A1

公开(公告)日：2024-12-19

申请号：US18660166

申请日：2024-05-09

Applicant: Apple Inc.

Inventor： Hasan Akyol ,  Henry C. Jen ,  Stanley B. Wang ,  Baris Cagdaser ,  Rahul Shukla ,  John T. Wetherell ,  Bin Huang ,  Derek K. Shaeffer ,  Pablo Moreno Galbis ,  Johan L. Piper ,  Lawrence C. Tan ,  Adam Adjiwibawa ,  Manu Mishra

IPC: G09G3/20

Abstract: An electronic device may include a display panel and a display driver. The display panel may include multiple pixels each receiving a supply voltage and a respective data voltage to emit light. The display driver may include a low drop-out regulator (LDO) to provide the supply voltage to the pixels. The LDO may operate in a normal operation mode and a hard park mode. In the normal operation mode, the LDO may generate the supply voltage based on receiving a reference voltage and a bias voltage within a bias voltage range to operate in the normal operation mode. In the hard park mode, the LDO may become idle (e.g., shut-down mode) based on receiving a hard park mode voltages from dedicated replacement circuits. For example, including the dedicated reference voltage replacement circuit with the display driver may improve reliability and efficiency of the electronic device when de-energizing the LDO.

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.