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：US20160196802A1

公开(公告)日：2016-07-07

申请号：US14591354

申请日：2015-01-07

Applicant: Apple Inc.

Inventor： Hyunwoo Nho ,  Wei Chen ,  Wei Yao ,  Yafei Bi

IPC: G09G5/18

CPC classification number: G09G3/20 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: An electronic device may have a variable refresh rate display. Static content may be displayed on the display at a lower refresh rate than moving content to conserve power. The display may include an array of pixels. Display driver circuitry in the display may load image data into rows of the pixels. The display driver circuitry may have digital-to-analog converter circuitry that supplies data signals to the array. The display driver circuitry may respond to a variable refresh rate control signal that is asserted and deasserted depending on whether static or moving image content is to be displayed. The display driver circuitry may use the digital-to-analog converter circuitry to apply a time-varying scaling factor to the image data. The magnitude of the scaling factor may be adjusted during transitions between refresh rates to help suppress luminance variations that might otherwise result in flickering on the display.

Abstract translation: 电子设备可以具有可变的刷新率显示。 静态内容可以以比移动内容更低的刷新率显示在显示器上以节省功率。 显示器可以包括像素阵列。 显示器中的显示驱动电路可以将图像数据加载到像素的行中。 显示驱动器电路可以具有将数据信号提供给阵列的数模转换器电路。 显示驱动器电路可以根据要显示静态或运动图像内容来响应被断言和解除无效的可变刷新率控制信号。 显示驱动器电路可以使用数模转换器电路将时变比例因子应用于图像数据。 可以在刷新率之间的转变期间调整缩放因子的幅度，以帮助抑制否则可能导致显示器闪烁的亮度变化。

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.

公开(公告)号：US20240169903A1

公开(公告)日：2024-05-23

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: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2300/0408 ,  G09G2300/0413 ,  G09G2310/0289 ,  G09G2320/045

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.

公开(公告)号：US11756481B2

公开(公告)日：2023-09-12

申请号：US17469816

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Hyunsoo Kim ,  Kingsuk Brahma ,  Myungjoon Choi ,  Yue Jack Chu ,  Li-Xuan Chuo ,  Hassan Edrees ,  Chin-Wei Lin ,  Hyunwoo Nho ,  Shinya Ono ,  Alex H. Pai ,  Jie Won Ryu ,  Yao Shi ,  Chaohao Wang

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2360/12

Abstract: Systems, methods, and devices are provided for mitigating visual artifacts by dynamically tuning bias voltages applied to display pixels. An electronic display may include a display pixel and a bias voltage supply. The bias voltage supply may supply a first bias voltage to the display pixel for a first subframe of a frame of image data. The bias voltage supply may supply a different second bias voltage to the display pixel for a second subframe of the frame of image data. This may mitigate certain image artifacts, such as flicker or variable refresh rate luminance difference, that could arise due to display pixel hysteresis that varies across subframes of the image frame.

公开(公告)号：US20220076627A1

公开(公告)日：2022-03-10

申请号：US17469816

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Hyunsoo Kim ,  Kingsuk Brahma ,  Myungjoon Choi ,  Yue Jack Chu ,  Li-Xuan Chuo ,  Hassan Edrees ,  Chin-Wei Lin ,  Hyunwoo Nho ,  Shinya Ono ,  Alex H. Pai ,  Jie Won Ryu ,  Yao Shi ,  Chaohao Wang

IPC: G09G3/3233

Abstract: Systems, methods, and devices are provided for mitigating visual artifacts by dynamically tuning bias voltages applied to display pixels. An electronic display may include a display pixel and a bias voltage supply. The bias voltage supply may supply a first bias voltage to the display pixel for a first subframe of a frame of image data. The bias voltage supply may supply a different second bias voltage to the display pixel for a second subframe of the frame of image data. This may mitigate certain image artifacts, such as flicker or variable refresh rate luminance difference, that could arise due to display pixel hysteresis that varies across subframes of the image frame.

公开(公告)号：US11164515B2

公开(公告)日：2021-11-02

申请号：US16603188

申请日：2018-03-27

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Hyunwoo Nho ,  Sun-Il Chang ,  Junhua Tan ,  Jie Won Ryu ,  Shengkui Gao ,  Rui Zhang ,  Injae Hwang ,  Kingsuk Brahma ,  Jesse Aaron Richmond ,  Shiping Shen ,  Hyunsoo Kim

IPC: G09G3/3216 ,  G09G3/3225 ,  G09G3/3233

Abstract: An electronic device comprises an electronic display having an active area having a pixel. The electronic device also comprises processing circuitry configured to receive image data to send to the pixel and adjust the image data to generate corrected image data based at least in part on a stored correction value for the pixel. The processing circuitry also is configured to generate a test data to send to the pixel subsequent to sending corrected image data to the pixel, wherein the test data is selected based upon a comparison of at least one aspect of the corrected image data with a threshold value.

公开(公告)号：US11158253B1

公开(公告)日：2021-10-26

申请号：US16563500

申请日：2019-09-06

Applicant: Apple Inc.

Inventor： Injae Hwang ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Sun-Il Chang ,  Rui Zhang ,  Mohammad B. Vahid Far ,  Kingsuk Brahma ,  Jesse A. Richmond ,  Hyunsoo Kim ,  Junhua Tan

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display device may include a plurality of pixels configured to display image data on a display. The display device may also include a circuit that measures a first current associated with a light-emitting diode (LED) of a pixel of the plurality of pixels in response to the circuit receiving a first data voltage. The circuit may also measure a second current associated with the LED of the pixel of the plurality of pixels in response to the circuit receiving a second data voltage. The circuit may then determine a voltage associated with the LED based at least in part on the first current and the second current.