公开(公告)号：US11592929B2

公开(公告)日：2023-02-28

申请号：US17582954

申请日：2022-01-24

Applicant: Apple Inc.

Inventor： Zhou Lu ,  Isaac Wing-Tak Chan ,  Justin Zachary Wu ,  Rangarajan Krishnan ,  Qingbo Guo ,  Chao Zhang

IPC: G06F3/041 ,  G06F3/044

Abstract: In some examples, a touch screen includes resistors between the touch electrodes and routing traces. In some examples, the resistors can include a transparent conductive material included in the touch electrodes of the touch screen. The resistors can be located in a border region of the touch screen that can surround an active area of the touch screen that can include the touch electrodes and display pixels of the touch screen, for example. In some examples, the resistors included in the touch screen can have different resistances from each other and the same outer dimensions as one another. The resistors can reduce the variation in resistance from channel to channel in the touch screen, which can improve touch screen performance, for example.

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：US11842005B2

公开(公告)日：2023-12-12

申请号：US18168524

申请日：2023-02-13

Applicant: Apple Inc.

Inventor： Zhou Lu ,  Isaac Wing-Tak Chan ,  Justin Zachary Wu ,  Rangarajan Krishnan ,  Qingbo Guo ,  Chao Zhang

IPC: G06F3/041 ,  G06F3/044 ,  H01C7/00 ,  H05K1/16

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/0446 ,  H01C7/006 ,  H05K1/167

Abstract: In some examples, a touch screen includes resistors between the touch electrodes and routing traces. In some examples, the resistors can include a transparent conductive material included in the touch electrodes of the touch screen. The resistors can be located in a border region of the touch screen that can surround an active area of the touch screen that can include the touch electrodes and display pixels of the touch screen, for example. In some examples, the resistors included in the touch screen can have different resistances from each other and the same outer dimensions as one another. The resistors can reduce the variation in resistance from channel to channel in the touch screen, which can improve touch screen performance, for example.

公开(公告)号：US11231807B1

公开(公告)日：2022-01-25

申请号：US16994515

申请日：2020-08-14

Applicant: Apple Inc.

Inventor： Zhou Lu ,  Isaac Wing-Tak Chan ,  Justin Zachary Wu ,  Rangarajan Krishnan ,  Qingbo Guo ,  Chao Zhang

IPC: G06F3/041 ,  G06F3/044

Abstract: In some examples, a touch screen includes resistors between the touch electrodes and routing traces. In some examples, the resistors can include a transparent conductive material included in the touch electrodes of the touch screen. The resistors can be located in a border region of the touch screen that can surround an active area of the touch screen that can include the touch electrodes and display pixels of the touch screen, for example. In some examples, the resistors included in the touch screen can have different resistances from each other and the same outer dimensions as one another. The resistors can reduce the variation in resistance from channel to channel in the touch screen, which can improve touch screen performance, for example.