公开(公告)号：US11783739B2

公开(公告)日：2023-10-10

申请号：US17397953

申请日：2021-08-09

Applicant: Apple Inc.

Inventor： Hasan Akyol ,  Xuebei Yang ,  Chung-Lun Edwin Hsu ,  Henry C. Jen ,  John T. Wetherell

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G2310/0275 ,  G09G2330/12

Abstract: Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.

公开(公告)号：US11620946B1

公开(公告)日：2023-04-04

申请号：US17686227

申请日：2022-03-03

Applicant: Apple Inc.

Inventor： Hasan Akyol ,  Xuebei Yang

IPC: G09G3/3233

Abstract: A sensing circuit includes at least a first gain stage and a controller for controlling the operation of the first gain stage. The first gain stage includes an amplifier having at least one input and one output, and a feedback loop coupled between the input and the output of the amplifier. The feedback loop includes a first capacitor coupled between the input and the output of the amplifier, and a second capacitor having a first terminal coupled to the input of the amplifier through a first switch and a second terminal coupled to the output of the amplifier through a second switch. The second capacitor is configured to be coupled in parallel to the first capacitor during a first portion of a measurement cycle, and disconnected from the first capacitor during a second portion of the measurement cycle.