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：US10388201B2

公开(公告)日：2019-08-20

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 ,  G09G3/20 ,  G09G5/00

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：US20190079611A1

公开(公告)日：2019-03-14

申请号：US15944495

申请日：2018-04-03

Applicant: Apple Inc.

Inventor： Sang Y Youn ,  Sun-Il Chang

IPC: G06F3/045 ,  G06F3/041 ,  G01R27/14

Abstract: Methods and systems for compensating display panel operations providing a current from power circuitry over a first path between a display panel and the power circuitry are provided. A sensing current may be injected into the first path via a second path between the power circuitry and the first path. An equivalent series resistance (ESR) of the first path may be calculated using a third path and the sensing current. A processor may compensate for electrical fluctuations from the power circuitry to the display panel based at least in part on the measured ESR.

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：US11488529B2

公开(公告)日：2022-11-01

申请号：US16849712

申请日：2020-04-15

Applicant: Apple Inc.

Inventor： Injae Hwang ,  Jesun Kim ,  Hyunwoo Nho ,  Jie Won Ryu ,  Hyunsoo Kim ,  Junhua Tan ,  Myungjoon Choi ,  Rebecca Park ,  Shiping Shen ,  Sun-Il Chang ,  Shengkui Gao ,  Kingsuk Brahma ,  Jesse Aaron Richmond ,  Changki Min ,  Yifan Zhang ,  Jiye Lee ,  Chaohao Wang

IPC: G09G3/3233 ,  G09G3/00

Abstract: A current-voltage (IV) relationship of a pixel having a diode is initially determined. A first voltage is determined that does not cause the diode to emit light, and a first current across the diode is sensed by applying the first voltage. A predetermined current is determined based on the first voltage and the IV relationship. A ratio is determined based on the first current, a target current, and the predetermined current. A ratio voltage is determined by applying the ratio to a predetermined target voltage. If the first current is less than the predetermined current, then the ratio voltage is applied to supply a target current to the diode. If the first current is greater than the predetermined current, then a second voltage is determined by averaging the first test voltage and the ratio voltage, and the second voltage is applied to supply the target current to the diode.

公开(公告)号：US11282458B2

公开(公告)日：2022-03-22

申请号：US16897206

申请日：2020-06-09

Applicant: Apple Inc.

Inventor： Hyunsoo Kim ,  Injae Hwang ,  Jesun Kim ,  Jesse A. Richmond ,  Junhua Tan ,  Jie Won Ryu ,  Hyunwoo Nho ,  Kingsuk Brahma ,  Chaohao Wang ,  Shiping Shen ,  Myungjoon Choi ,  Myung-Je Cho ,  Rebecca Park ,  Sun-Il Chang

IPC: G09G3/32 ,  G09G3/3258 ,  G09G3/36 ,  G06F3/044

Abstract: Systems and methods are presently disclosed that compensate for temperature-based parasitic capacitance variation of a pixel of a display by causing a driver transistor of the pixel to enter an ohmic or linear region. A lookup table is generated based on temperatures at the pixel, diode voltages, and target diode currents or luminances at a diode of the pixel. A correction voltage is determined based on a target diode current or luminance, a temperature at the pixel, and the lookup table. A data voltage is applied corresponding to the target diode current or luminance and the correction voltage to the driver transistor.