公开(公告)号：US10210801B2

公开(公告)日：2019-02-19

申请号：US15012378

申请日：2016-02-01

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Mohammad Ali Jangda ,  Chin-Wei Lin ,  Hyunwoo Nho ,  Vasudha Gupta

IPC: G06F1/00 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  G09G3/36 ,  G09G3/3225

Abstract: An electronic device includes a display and a controller. The controller is configured to receive one or more operational characteristics of the display. The controller is also configured to calculate a blank time voltage level for a data line of the display based on the one or more operational characteristics, wherein the blank time voltage level corresponds to a voltage transmitted along the data line of the display immediately subsequent to image data being transmitted along the data line.

公开(公告)号：US10209551B2

公开(公告)日：2019-02-19

申请号：US15677267

申请日：2017-08-15

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Jesse A. Richmond ,  Mohammad B. Vahid Far ,  Tobias Jung ,  Jie Won Ryu ,  Hyunwoo Nho ,  Kingsuk Brahma ,  Sun-Il Chang ,  Junhua Tan ,  Marc Albrecht ,  Chih-Wei Yeh ,  Chaohao Wang

IPC: G02F1/1333 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3233

Abstract: Devices, storage media, and methods for compensating for aging and temperature variations using dual-loop compensation are provided. The compensating for temperature and aging variations of one or more pixels of the display using a coarse scan loop updated at a faster rate. Compensation also includes compensating for aging variations of the one or more pixels of the display using a fine scan loop updated at a slower rate.

公开(公告)号：US20180342193A1

公开(公告)日：2018-11-29

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

CPC classification number: G09G3/2092 ,  G09G3/006 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3648 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/0693 ,  G09G2330/021 ,  G09G2330/06 ,  G09G2330/12

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：US10134349B2

公开(公告)日：2018-11-20

申请号：US15498287

申请日：2017-04-26

Applicant: Apple Inc.

Inventor： Rui Zhang ,  Guangmao Xing ,  Paolo Sacchetto ,  Marc Joseph Devincentis ,  Anshi Liang ,  Weijun Yao ,  Sang Y. Youn ,  Hyunwoo Nho

IPC: G09G3/36 ,  G09G3/3225 ,  H04B1/10 ,  G09G3/20

Abstract: Aspects of the subject technology relate to electronic devices with displays. A display may include an array of display pixels and control circuitry for operating the display. In some scenarios, interference signals from other components of the electronic device or additional external devices can couple to the control circuitry for the display and cause distortions in displayed data. Display frames may be displayed by an electronic device display with a varying phase. The varying phase display frames may each include a distortion pattern that also varies from frame to frame due to the varying phase. The varying distortion patterns may average out or visibly cancel when viewed by a user such that no visible artifact of the interference signal is seen by the user. The varying phase can be actively tuned to the interference signal if desired.

公开(公告)号：US20180268762A1

公开(公告)日：2018-09-20

申请号：US15664982

申请日：2017-07-31

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Mohammad Ali Jangda ,  Injae Hwang ,  Rui Zhang ,  Shengkui Gao ,  Hyunwoo Nho ,  Wei H. Yao ,  Mohammad Hajirostam

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/064

Abstract: An electronic device includes processors that generate image data. The electronic device also includes an electronic display that displays the image data over a first frame duration by programming a first row of display pixels with the image data. The electronic display also displays the image data over the first frame duration by causing the first row of display pixels to emit light for an emission duration that is based at least in part on a first luminance of the image data. The electronic display further displays the image data over the first frame duration by resetting the first row of pixels before an end of the first frame duration.

公开(公告)号：US09953581B2

公开(公告)日：2018-04-24

申请号：US14988594

申请日：2016-01-05

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Chin-Wei Lin ,  Tsung-Ting Tsai ,  Sang Y. Youn ,  Hyunwoo Nho

IPC: G09G3/32 ,  G09G3/3266 ,  G09G3/20 ,  G11C19/00

CPC classification number: G09G3/3266 ,  G09G3/2022 ,  G09G3/2092 ,  G09G2300/0408 ,  G09G2310/0286 ,  G11C19/00

Abstract: This application sets forth a circuit configuration for a light emitting diode (LED) or organic light emitting diode (OLED) display. The circuit configuration allows for the pulse-width modulation (PWM) of each emission signal sent to each line of the display. The PWM of each emission signal is accomplished using a gate-in-panel (GIP) controller of the display. The GIP controller uses an arrangement of shift register outputs and a programmable clock input to control an output of an inverter that provides the emission signal. The programmable clock input can be programmed according to a desired timing or duty cycle for the emission signal. In this way, by limiting the duty cycle of the emission signal, dimming and other display features can be exhibited by the LED or OLED display.

公开(公告)号：US20180082631A1

公开(公告)日：2018-03-22

申请号：US15674208

申请日：2017-08-10

Applicant: Apple Inc.

Inventor： Sun Il Chang ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Jie Won Ryu ,  Junhua Tan ,  Chih-Wei Yeh ,  Chaohao Wang ,  Paolo Sacchetto

IPC: G09G3/3225 ,  G09G3/36

CPC classification number: G09G3/3225 ,  G09G3/20 ,  G09G3/3648 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/041 ,  G09G2320/0646 ,  G09G2320/0693 ,  G09G2340/0435 ,  G09G2340/16 ,  G09G2360/16

Abstract: Systems, methods, and devices for adjusting image display on an electronic display by predicting a temperature change of the electronic display due to heat-producing components near the display or due to changes in content. An electronic device may include an electronic display and processing circuitry. The electronic display may include pixels with behaviors that vary with temperature. As such, the processing circuitry may generate image data to send to the electronic display and adjust the image data or vary an operation of the electronic display based at least in part on a predicted temperature effect on at least part of the active area of the electronic display. The processing circuitry may determine the predicted temperature effect at least in part due to a first heat producing component or changes in content of the image data.

公开(公告)号：US20180082621A1

公开(公告)日：2018-03-22

申请号：US15698262

申请日：2017-09-07

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-II Chang ,  Shinya Ono ,  Jesse A. Richmond ,  Yafei Bi ,  Derek K. Shaeffer

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G3/20 ,  G09G3/2092 ,  G09G2310/0291 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/06 ,  G09G2330/10 ,  G09G2330/12

Abstract: Systems and methods are provided for differential sensing (DS), difference-differential sensing (DDS), correlated double sampling (CDS), and/or programmable capacitor matching to reduce display panel sensing noise. An electronic device may include one or more processors and an electronic display. The one or more processors may generate image data and adjust the image data based at least in part on display sensing feedback. The electronic display may employ sensing circuitry that obtains the display sensing feedback at least in part by applying test data to a pixel of a column of an active area of the display and differentially senses an electrical value of the pixel in comparison to a reference signal from a different column. This reference signal may provide a common mode noise reference, which is removed by the differential sensing and thereby enhances a quality of the sensed electrical value of the pixel.

公开(公告)号：US20180053466A1

公开(公告)日：2018-02-22

申请号：US15275109

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： Rui Zhang ,  Mohammad Hajirostam ,  Hung Sheng Lin ,  Mohammad B. Vahid Far ,  Sang Y. Youn ,  Zhen Zhang ,  Prashant Mandlik ,  Sun-Il Chang ,  Jie Won Ryu ,  Shengkui Gao ,  Hyunwoo Nho ,  Wei H. Yao ,  Yafei Bi ,  Yun Wang

IPC: G09G3/32 ,  H01L51/00 ,  H01L27/32 ,  G11C19/28 ,  G01L1/22

CPC classification number: G09G3/006 ,  G01L1/2281 ,  G01M5/0033 ,  G01M5/0083 ,  G09G3/20 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2330/12 ,  G09G2380/02 ,  G11C7/04 ,  G11C19/28 ,  H01L27/3276 ,  H01L51/0031 ,  H01L51/0097

Abstract: An electronic device may have a flexible display such as an organic light-emitting diode display. A strain sensing resistor may be formed on a bent tail portion of the flexible display to gather strain measurements. Resistance measurement circuitry in a display driver integrated circuit may make resistance measurements on the strain sensing resistor and a temperature compensation resistor to measure strain. A crack detection line may be formed from an elongated pair of traces that are coupled at their ends to form a loop. The crack detection line may run along a peripheral edge of the flexible display. Crack detection circuitry may monitor the resistance of the crack detection line to detect cracks. The crack detection circuitry may include switches that adjust the length of the crack detection line and thereby allow resistances to be measured for different segments of the line.

公开(公告)号：US20160063659A1

公开(公告)日：2016-03-03

申请号：US14841544

申请日：2015-08-31

Applicant: Apple Inc.

Inventor： Mohammad Ali Jangda ,  Sang Y. Youn ,  Wei H. Yao ,  Hyunwoo Nho ,  Arthur L. Spence ,  Viswa B. Pilla ,  Axel B. Schumacher ,  Ramachandran Chundru

IPC: G06T1/00 ,  G06T1/60 ,  G09G3/00

CPC classification number: G06T1/20 ,  G09G3/2092 ,  G09G5/003 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2330/12 ,  G09G2360/18

Abstract: An electronic device may be provided with a housing such as a metal housing in which a display is mounted. Control circuitry in the electronic device such as a system-on-chip integrated circuit may produce image data. A display driver integrated circuit may receive the image data from the system-on-chip integrated circuit and may display the image data on the display. In the absence of electrostatic discharge, the display driver integrated circuit may operate normally and may generate a heartbeat signal. When disrupted due to electrostatic discharge, the display driver circuitry may cease production of the heartbeat signal. The system-on-chip integrated circuit can implement a watchdog timer. If the watchdog timer times out because the heartbeat signal is not received within a timeout period, the system-on-chip integrated circuit may reset the display.

Abstract translation: 电子设备可以设置有诸如其中安装有显示器的金属外壳的壳体。 诸如片上系统集成电路的电子设备中的控制电路可以产生图像数据。 显示驱动器集成电路可以从片上系统集成电路接收图像数据，并且可以在显示器上显示图像数据。 在没有静电放电的情况下，显示驱动器集成电路可以正常工作并且可以产生心跳信号。 当由于静电放电而中断时，显示驱动器电路可能停止产生心跳信号。 系统级芯片集成电路可以实现看门狗定时器。 如果看门狗定时器超时，因为超时时间内没有收到心跳信号，片上系统集成电路可能会重置显示。