公开(公告)号：US11100845B1

公开(公告)日：2021-08-24

申请号：US16563452

申请日：2019-09-06

Applicant: Apple Inc.

Inventor： Hyunsoo Kim ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Injae Hwang ,  Rui Zhang ,  Shengkui Gao ,  Shiping Shen ,  Sun-Il Chang

IPC: G09G3/32 ,  H01L27/32 ,  H01L51/52

Abstract: A device may include a photosensitive transistor and a light-emitting diode. The light-emitting diode may include an anode. The anode may include a first portion having a first thickness and a second portion having a second thickness, wherein the second thickness is less than the first thickness. The device may also include driving circuitry that receives a data signal and causes light to emit from the light-emitting diode in response to the data signal. The photosensitive transistor may generate an electrical signal in response to light emitted from the light-emitting diode during the light emission.

公开(公告)号：US20210150950A1

公开(公告)日：2021-05-20

申请号：US16644932

申请日：2018-08-31

Applicant: Junhua TAN ,  Chin-Wei LIN ,  Hung Sheng LIN ,  Hyunsoo KIM ,  Hyunwoo NHO ,  Injae HWANG ,  Jesse A. RICHMOND ,  Jie Won RYU ,  Kavinaath MURUGAN ,  Kingsuk BRAHMA ,  Shengkui GAO ,  Shiping SHEN ,  Sun-Il CHANG ,  Myung-Je CHO ,  Yafei BI ,  Myungjoon CHOI ,  Chaohao WANG ,  Weichuan YAO ,  Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Injae Hwang ,  Jesse A. Richmond ,  Jie Won Ryu ,  Junhua Tan ,  Kavinaath Murugan ,  Kingsuk Brahma ,  Shengkui Gao ,  Shiping Shen ,  Sun-Il Chang ,  Myung-Je Cho ,  Yafei Bi

IPC: G09G3/00

Abstract: Electronic devices and methods for compensating for aging or other effects in a display during a non-transmitting state (off state) of the display. Sensing may include emissive element sensing of the display and/or thin film transistor sensing of the display. Compensating for the effects may preserve or increase a uniformity of transmission of the display.

公开(公告)号：US10984713B1

公开(公告)日：2021-04-20

申请号：US16409489

申请日：2019-05-10

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Chaohao Wang ,  Jun Li ,  Myungjoon Choi ,  Hyunsoo Kim ,  Shengkui Gao ,  Injae Hwang ,  Sun-Il Chang ,  Jie Won Ryu ,  Hyunwoo Nho ,  Shiping Shen

IPC: G09G3/3233

Abstract: An electronic display system may include a display panel used to display an image through emitting light. The electronic display system may also include processing circuitry that receives indication of an image to be displayed on the display panel and generates one or more signals to communicate the image on the display panel. The processing circuitry may compensate for non-uniformities in light emission between pixels of the display due to current-voltage non-uniformities.

公开(公告)号：US10777106B2

公开(公告)日：2020-09-15

申请号：US15717755

申请日：2017-09-27

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Jie Won Ryu ,  Kingsuk Brahma ,  Hyunwoo Nho ,  Baris Cagdaser ,  Junhua Tan ,  Sun-Il Chang ,  Luigi Panseri ,  Injae Hwang ,  Jesse A. Richmond ,  Toshiaki Sawada ,  Hyuck-Jae Lee

IPC: G09G3/00 ,  G09G3/3275 ,  G09G3/36 ,  G09G3/3225

Abstract: An electronic device includes a display having a number of pixels, source driving circuitry that drives data to the pixels, and data lines that communicatively couple the source driving circuitry with the pixels. The electronic device also includes quality monitoring and calibration circuitry that identifies degradation in the source driving circuitry, one or more of the data lines, or both. The electronic device may be controlled based at least in part upon identification of the degradation.

公开(公告)号：US10573234B2

公开(公告)日：2020-02-25

申请号：US16049462

申请日：2018-07-30

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Hyunwoo Nho ,  Chaohao Wang ,  Jie Won Ryu ,  Kingsuk Brahma ,  Shiping Shen ,  Shengkui Gao ,  Hyunsoo Kim ,  Sun-Il Chang ,  Junhua Tan ,  Injae Hwang ,  Myungjoon Choi

IPC: G09G3/34 ,  G09G3/3233 ,  G09G3/3258

Abstract: A method for operating an electronic display includes displaying image frames and receiving operational parameters of the electronic display based on illuminating a sense pixel of at least one row of pixels of the electronic display when displaying the image frames. 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 image display of a third image frame on the electronic display based on the operational parameters.

公开(公告)号：US20180337687A1

公开(公告)日：2018-11-22

申请号：US15600356

申请日：2017-05-19

Applicant: Apple Inc.

Inventor： Adam Adjiwibawa ,  David W. Lum ,  Wonjae Choi ,  Hynwoo Nho ,  Hopil Bae ,  Injae Hwang ,  Bryce T. Bradford ,  Jie Won Ryu ,  Hung Sheng Lin

IPC: H03M1/66 ,  H03M1/80 ,  G09G3/20

Abstract: A display device may include rows of pixels that displays image data on a display, data lines coupled to the rows of pixels, and a digital-to-analog converter (DAC) that outputs a ramp voltage signal including a data voltage to be depicted on a first pixel of the rows of pixels. The display device may also include a capacitor that receives the ramp voltage signal via the DAC and a circuit that sends a control signal to a circuit component that causes the DAC to couple to the capacitor via one of the data lines for a duration of time that comprises a first time when the ramp voltage signal is below the data voltage and a second time when the ramp voltage signal is approximately equal to the data voltage. The capacitor is coupled to the DAC when the ramp voltage signal is greater than zero.

公开(公告)号：US20180268758A1

公开(公告)日：2018-09-20

申请号：US15964662

申请日：2018-04-27

Applicant: Apple Inc.

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

IPC: G09G3/3233 ,  G09G3/3216

CPC classification number: G09G3/3233 ,  G09G3/3216 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2310/062 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/045

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 at least two times before an end of the first frame duration.

公开(公告)号：US20180082634A1

公开(公告)日：2018-03-22

申请号：US15701056

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Chih-Wei Yeh ,  Chin-Wei Lin ,  Hung Sheng Lin ,  Hyunwoo Nho ,  Injae Hwang ,  Jie Won Ryu ,  Junhua Tan ,  Paolo Sacchetto ,  Rui Zhang ,  Shengkui Gao ,  Sun-Il Chang ,  Wei H. Yao ,  Howard H. Tang

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/02 ,  G09G2330/12 ,  G09G2340/16 ,  G09G2360/18

Abstract: An apparatus receives current image frame data and data relating to at least one previous image frame for an electronic display. One or more parameters related to hysteresis of transistors in the electronic display are sensed. A correlation device, such as a look-up table, receives the sensed parameter or parameters and the data relating to one or more image frames, and uses this information, at least in part, to output an appropriate compensation signal for the current image frame data. The compensated current image frame data may then be supplied to the electronic display to reduce or eliminate the effects of hysteresis on the displayed image.

公开(公告)号：US11688363B2

公开(公告)日：2023-06-27

申请号：US17376125

申请日：2021-07-14

Applicant: Apple Inc.

Inventor： Maofeng Yang ,  Jiayi Jin ,  David A. Doyle ,  Yifan Zhang ,  Weijun Yao ,  Jiye Lee ,  Tae-Wook Koh ,  Mathew K. Mathai ,  Chuang Qian ,  Tsung-Ting Tsai ,  James P. Landry ,  Kiran S. Pillai ,  Injae Hwang ,  Yongjun Li

IPC: G09G5/10 ,  G09G3/20

CPC classification number: G09G5/10 ,  G09G3/20 ,  G09G2320/046 ,  G09G2330/028 ,  G09G2360/145

Abstract: An electronic device may include an electronic display including display pixels to display an image based on compensated image data. The electronic display may also include a stressed reference pixel to exhibit burn-in related aging in response to one or more stress sessions and a non-stressed reference pixel configured to not undergo the one or more stress sessions. Additionally, the electronic device may include image processing circuitry to determine a panel-specific aging profile based on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel. The image processing circuitry may also generate one or more gain maps based on the panel-specific aging profile and generate the compensated image data by applying the one or more gain maps to input image data.

公开(公告)号：US11663973B1

公开(公告)日：2023-05-30

申请号：US16409583

申请日：2019-05-10

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Shengkui Gao ,  Myungjoon Choi ,  Injae Hwang ,  Chaohao Wang ,  Myung-Je Cho ,  Hyunwoo Nho ,  Sun-Il Chang ,  Jesse A. Richmond ,  Kingsuk Brahma ,  Jie Won Ryu ,  Shiping Shen ,  Yunhui Hou

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

CPC classification number: G09G3/3258 ,  G09G3/32 ,  G09G3/3233 ,  G09G2320/0233 ,  G09G2320/0646 ,  G09G2320/0693 ,  G09G2330/08 ,  G09G2330/12

Abstract: External compensation of display panels may employ measurement or sensing circuitry configured to measure the output of a pixel and compensate for variations. Due to effects from the sensing circuitry, a mismatch between a target current and the actual current in the pixel may occur. Systems and methods that compensate for the effects from sensing circuitry and reduce or mitigate the mismatch are described. Systems and methods described herein include compensation circuitry that is capable of employing correction factors to compensate for the effects due to the presence of sensing circuitry. Methods for determining the correction factor are also described.