公开(公告)号：US10755618B2

公开(公告)日：2020-08-25

申请号：US16389899

申请日：2019-04-19

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Shengkui Gao ,  Hyunwoo Nho ,  Chin-Wei Lin ,  Mohammad B. Vahid Far ,  Jie Won Ryu ,  Kingsuk Brahma ,  Junhua Tan ,  Sun-Il Chang ,  Shinya Ono ,  Jesse Aaron Richmond ,  Yafei Bi ,  Derek K. Shaeffer ,  Myungjoon Choi ,  Shiping Shen

IPC: G09G3/00

Abstract: Systems and methods are provided for differential sensing (DS), difference-differential sensing (DDS), correlated double sampling (CDS), correlated-correlated double sampling (CDS-CDS) and/or programmable capacitor matching to reduce display panel sensing noise. An electronic device may include one or more processors that generate image data according to sensing operations. The one or more processors may reference a sensing pattern as part of sensing operations. Applying test sensing signals based on the sensing pattern may help reduce error associated with sensing operations.

公开(公告)号：US10565923B2

公开(公告)日：2020-02-18

申请号：US15700971

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Shiping Shen ,  Derek K. Shaeffer ,  Baris Cagdaser ,  Hyunwoo Nho ,  Kingsuk Brahma ,  Hung Sheng Lin ,  Injae Hwang ,  Jie Won Ryu ,  Hyunsoo Kim ,  Junhua Tan ,  Rui Zhang ,  Shengkui Gao ,  Mohammad B Vahid Far ,  Jesse A. Richmond ,  Sun-Il Chang

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/36

Abstract: Electronic devices and methods for compensating for noise in a display that includes sensing a current in a sensing channel of the display. Compensating for the noise also includes sensing an observation current from noise in an observation channel of the display and scaling the observation current to generate a scaled observation current. The scaled observation current is subtracted from the sense current to generate a compensated output. The compensated output is used to drive compensation operations of the display based at least in part on the compensated output to reduce effects of the noise.

公开(公告)号：US10545242B2

公开(公告)日：2020-01-28

申请号：US15670860

申请日：2017-08-07

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Hyunwoo Nho ,  Jie Won Ryu ,  Junhua Tan ,  Sun-Il Chang

IPC: G01S17/36 ,  G01S7/481 ,  G01S17/89 ,  G06K7/10 ,  G06K7/14 ,  G06T5/00 ,  H04N5/225 ,  H04N5/232 ,  H04N5/217 ,  H04N9/04

Abstract: A method for operating an electronic display includes receiving, using a controller, sensor data related to operational parameters of the electronic display based at least in part on illuminating a sense pixel of at least one row of pixels of the electronic display, wherein a first set of pixels below the at least one row of pixels renders a portion of a first image frame and a second set of pixels above the at least one row of pixels renders a portion of a second image frame. The method also includes adjusting, using the controller, image display on the electronic display based at least in part on the sensor data.

公开(公告)号：US10200059B2

公开(公告)日：2019-02-05

申请号：US15697233

申请日：2017-09-06

Applicant: Apple Inc.

Inventor： Baris Cagdaser ,  Derek K. Shaeffer ,  Hopil Bae ,  Jesse Aaron Richmond ,  Jie Won Ryu ,  Kingsuk Brahma ,  Mohammad B. Vahid Far ,  Shingo Hatanaka ,  Yafei Bi ,  Yuichi Okuda

IPC: H03M1/78 ,  H03M1/76 ,  H03M1/74 ,  H03M1/68

Abstract: A device includes a resistor string that includes a plurality resistors with voltage taps disposed therebetween. The device may select one particular voltage tap of the plurality of voltage taps based on received gray level data for a pixel of a display. The device also includes a first amplifier that may be coupled to a first terminal end of the resistor string. The device additionally includes a second amplifier that may be coupled to a second terminal end of the resistor string, wherein the plurality of voltage taps may each supply a tap voltage derived from a voltage between the first amplifier and the second amplifier, wherein any tap amplifier of the device coupled to a voltage tap of the plurality of voltage taps provides a reference voltage thereto.

公开(公告)号：US20180090042A1

公开(公告)日：2018-03-29

申请号：US15694373

申请日：2017-09-01

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Hyunwoo Nho ,  Shengkui Gao ,  Jesse A. Richmond ,  Jie Won Ryu ,  Junhua Tan ,  Kingsuk Brahma ,  Mohammad B. Vahid Far ,  Sun-Il Chang ,  Yafei Bi

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/006 ,  G06F3/041 ,  G09G3/20 ,  G09G3/2096 ,  G09G3/3225 ,  G09G2300/0413 ,  G09G2310/0291 ,  G09G2320/0295 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/06 ,  G09G2330/12

Abstract: Electronic displays, systems, and methods that perform display panel sensing are provided. An electronic device may include processing circuitry that generates image data based at least in part on display panel sensing feedback and an electronic display. The electronic display may display the image data on pixels coupled to one of several sense lines. There may be an odd number of sense lines with common electrical characteristics. The electronic display may obtain display panel sense feedback at least in part by differentially sensing each one of the sense lines with sense lines with common electrical characteristics with another one of the sense lines the common electrical characteristics.

公开(公告)号：US20180082633A1

公开(公告)日：2018-03-22

申请号：US15698192

申请日：2017-09-07

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Sun-Il Chang ,  Sebastian Knitter ,  Jie Won Ryu ,  Hyunwoo Nho ,  Lu Zhang ,  Nicolas P. Bonnier ,  Hung Sheng Lin ,  Rui Zhang

IPC: G09G3/3233 ,  G09G3/3258 ,  H01L27/32

CPC classification number: H01L27/3269 ,  G09G3/20 ,  G09G2310/0202 ,  G09G2360/141 ,  G09G2360/144 ,  G09G2360/145

Abstract: Electronic devices, storage medium containing instructions, and methods pertain to scanning a display during a sensing phase for the display. One or more parameters pertaining to operation or conditions around the display are obtained. Using the obtained one or more parameters, scanning mode parameters used for sensing are set based at least in part on the obtained one or more parameters. Using the scanning mode parameters, the display is scanned during a sensing phase of the display while reducing the likelihood of visible artifacts.

公开(公告)号：US20180082620A1

公开(公告)日：2018-03-22

申请号：US15697132

申请日：2017-09-06

Applicant: Apple Inc.

Inventor： Sun-Il Chang ,  Hyunwoo Nho ,  Hung Sheng Lin ,  Junhua Tan ,  Jie Won Ryu ,  Kingsuk Brahma ,  Jesse A. Richmond ,  Mohammad B. Vahid Far ,  Yafei Bi

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G3/2092 ,  G09G5/00 ,  G09G2320/041 ,  G09G2320/0693 ,  G09G2330/026

Abstract: Electronic devices and methods pertain to reducing artifacts resulting from a thermal profile preexisting a boot up of an electronic device are disclosed. Scanning driving circuitry of the electronic device scans at least a portion of one or more pixels of an active area of a display using a boot up scan before a boot up sequence of at least a portion of an electronic device completes. The results of the boot up scan are stored in local buffers and transferred to one or more processors upon connection to the one or more processors. The results of the boot up scan cause the one or more processors to modify image data to reduce or eliminate artifacts that may result during boot up due to thermal profiles or other parameters that may cause artifacts.

公开(公告)号：US20170024043A1

公开(公告)日：2017-01-26

申请号：US14808882

申请日：2015-07-24

Applicant: APPLE INC.

Inventor： Kasra Omid-Zohoor ,  Jie Won Ryu ,  Jiayi Jin ,  Hyunwoo Nho

IPC: G06F3/041 ,  G09G3/36 ,  G02F1/1333 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2310/0251

Abstract: Systems and methods for improving display image quality on electronic displays are provided. One embodiment of an electronic display includes display pixels that share a common electrode. Each of the display pixels includes a first conductive path electrically coupled between a pixel electrode and a data line, in which the first conductive path only enables the data line to charge the pixel electrode; and a second conductive path electrically coupled between the pixel electrode and the data line in parallel with the first conductive path, in which the second conductive path enables the data line to discharge the pixel electrode such that discharge rate of the pixel electrode is approximately equal to charge rate of the pixel electrode. Additionally, the embodiment includes a touch pixel that detects occurrence and position of a touch on a screen of the electronic display using the first common electrode.

Abstract translation: 提供了用于提高电子显示器上的显示图像质量的系统和方法。 电子显示器的一个实施例包括共享公共电极的显示像素。 每个显示像素包括电耦合在像素电极和数据线之间的第一导电路径，其中第一导电路径仅使得数据线能够对像素电极充电; 以及第二导电路径，与第一导电路径平行地耦合在像素电极和数据线之间，其中第二导电路径使得数据线能够使像素电极放电，使得像素电极的放电速率近似等于 像素电极的充电速率。 此外，该实施例包括使用第一公共电极检测在电子显示器的屏幕上的触摸的发生和位置的触摸像素。

公开(公告)号：US20250069541A1

公开(公告)日：2025-02-27

申请号：US18780367

申请日：2024-07-22

Applicant: Apple Inc.

Inventor： Jongyup Lim ,  Jie Won Ryu ,  Nicolas Le Dortz ,  Hyunwoo Nho ,  Sun-Il Chang ,  Patrick R. Cruce

IPC: G09G3/20 ,  G09G3/32 ,  G09G3/3208 ,  G09G3/36

Abstract: An electronic display device designed to a method and device that corrects for distorted luminance and colors due to data-to-scan coupling in a flat-panel display.

公开(公告)号：US12211435B2

公开(公告)日：2025-01-28

申请号：US18470216

申请日：2023-09-19

Applicant: Apple Inc.

Inventor： Sun-Il Chang ,  Kwang Soon Park ,  Hao-Lin Chiu ,  Jie Won Ryu ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Wei Xiong ,  Patrick R Cruce

IPC: G09G5/10 ,  G01R31/28 ,  G09G3/3208

Abstract: An electronic device may include an electronic display having a gate-on-array (GOA) that generates gate signals in response to an activation signal, pixels that activate in response to a combination of the gate signals and data signals indicative of image data, and sensing circuitry. The sensing circuitry may measure a characteristic response of a gate signal a characteristic response of one or more pixels, or both and compare the characteristic responses to baselines. The electronic device may also include compensation circuitry that applies a compensation to the activation signal and/or to the image data based on the comparisons between the characteristic responses and the baselines.