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公开(公告)号：US11614819B2
公开(公告)日：2023-03-28
申请号：US17003680
申请日：2020-08-26
Applicant: Apple Inc.
Inventor： Zhen Zhang , Baris Cagdaser , Chieh-Chien Lin , Derek Keith Shaeffer , Jesse Aaron Richmond , Suoming Zhang
Abstract: A system may include a display driven using display driving circuitry to present an image via pixels. The display driving circuitry may include a sensor core compatible with one or more strain sensing circuits. The same sensor core may be used by a control system of the display to sense a stress applied to a strained region of a display using a current divider sensing circuit and/or a Wheatstone bridge sensing circuit.
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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.
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公开(公告)号：US20200005716A1
公开(公告)日：2020-01-02
申请号：US16567972
申请日：2019-09-11
Applicant: Apple Inc.
Inventor： Junhua Tan , Kingsuk Brahma , Jie Won Ryu , Shengkui Gao , Shiping Shen , Majid Gharghi , Hyunwoo Nho , Injae Hwang , Kavinaath Murugan , Sun-Il Chang , Chin Wei Lin , Hyunsoo Kim , Rui Zhang , Jesse Aaron Richmond , Yun Wang , Hung Sheng Lin , Alex H. Pai , Chaohao Wang , Wei H. Yao
IPC: G09G3/3283 , G09G3/3291 , G09G3/3241 , G09G3/3258
Abstract: The present disclosure relates generally to systems and methods that may reduce a reduction in visual artifacts related to hysteresis of a light emitting diode (LED) electronic display. In one example, an electronic device may include a controller. The controller is may provide a signal to a pixel of a display of the electronic device while at least a portion of the display is turned off. The signal may include a first current and a second current. The first current may be designed to increase an ambient temperature corresponding to the pixel. The second current may be generated as part of an active panel conditioning operation. By applying the first current and the second current, hysteresis settling times from the pixel may improve, therefore improving speeds of sensing and compensation operations of the electronic device.
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公开(公告)号：US20190086992A1
公开(公告)日：2019-03-21
申请号：US16028199
申请日：2018-07-05
Applicant: Apple Inc.
Inventor： Hung Sheng Lin , Hyunwoo Nho , Hyunsoo Kim , Shengkui Gao , Chun Lu , Sinan Alousi , Chin-Wei Lin , Jesse Aaron Richmond , Yafei Bi , Injae Hwang , Haifeng Li , Mohammad Hajirostam
IPC: G06F1/32 , G09G3/3258
Abstract: An electronic display includes an active area having an array of pixels. The electronic display also includes multiple data power rails coupled to the active area that supply power to the array of pixels. The electronic display further includes data driving circuitry coupled to the multiple data power rails that drive the array of pixels. The electronic display also includes a controller coupled to the data driving circuitry having a processor. The processor causes the array of pixels to emit light based on a display brightness value. The processor also causes a pixel of the array of pixels to emit light at a brightness of gray level 0 by dynamically adjusting a data power rail of the multiple data power rails.
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公开(公告)号：US20180083648A1
公开(公告)日：2018-03-22
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
CPC classification number: H03M1/785 , G09G2320/0276 , H03M1/682 , H03M1/747 , H03M1/765
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.
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Patent Agency Ranking
公开(公告)号：US11380260B2
公开(公告)日：2022-07-05
申请号：US16603189
申请日：2018-03-27
Applicant: Apple Inc.
Inventor： Junhua Tan , Kingsuk Brahma , Jie Won Ryu , Shengkui Gao , Shiping Shen , Majid Gharghi , Hyunwoo Nho , Injae Hwang , Kavinaath Murugan , Sun-Il Chang , Chin-Wei Lin , Hyunsoo Kim , Rui Zhang , Jesse Aaron Richmond , Yun Wang , Hung Sheng Lin
IPC: G09G3/3233 , G09G3/3258 , G09G3/3275 , G09G3/3266
Abstract: An electronic device comprises a controller. The controller is configured to provide a first signal to a display of the electronic device to turn off the display. The controller is also configured to provide a second signal to the display to alter a gate source voltage of a drive transistor coupled to a light emitting diode (LED) of a pixel of the display while the display is turned off.
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公开(公告)号：US20210096682A1
公开(公告)日：2021-04-01
申请号：US17003680
申请日：2020-08-26
Applicant: Apple Inc.
Inventor： Zhen Zhang , Baris Cagdaser , Chieh-Chien Lin , Derek Keith Shaeffer , Jesse Aaron Richmond , Suoming Zhang
Abstract: A system may include a display driven using display driving circuitry to present an image via pixels. The display driving circuitry may include a sensor core compatible with one or more strain sensing circuits. The same sensor core may be used by a control system of the display to sense a stress applied to a strained region of a display using a current divider sensing circuit and/or a Wheatstone bridge sensing circuit.
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公开(公告)号：US20180082635A1
公开(公告)日：2018-03-22
申请号：US15702443
申请日：2017-09-12
Applicant: Apple Inc.
Inventor： Jesse Aaron Richmond , Mohammad B. Vahid Far , Yafei Bi , Kingsuk Brahma
IPC: G09G3/3233 , G09G3/00 , G09G3/3291 , H03F3/26 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/006 , G09G3/2003 , G09G3/3291 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2310/027 , G09G2320/0285 , G09G2320/0295 , G09G2320/045 , H03F3/265
Abstract: An electronic device includes a display panel. The display panel includes a plurality of pixels, each of which includes a driving thin-film-transistor (TFT) configured to receive driving data related to the operation of a respective pixel and a light-emitting diode configured to emit light based on the driving data provided to the TFT. The display panel also includes compensation circuitry configured to generate offset data from compressed offset data and apply the offset data to the pixel data to generate the driving data.
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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.
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公开(公告)号：US11189202B1
公开(公告)日：2021-11-30
申请号：US16567989
申请日：2019-09-11
Applicant: Apple Inc.
Inventor： Sun-Il Chang , Baris Cagdaser , Chaohao Wang , Derek Keith Shaeffer , Hyunsoo Kim , Hyunwoo Nho , Injae Hwang , Jesse Aaron Richmond , Jie Won Ryu , Junhua Tan , Kingsuk Brahma , Myung-Je Cho , Myungjoon Choi , Shengkui Gao , Shiping Shen , Wei H. Yao , Yunhui Hou
IPC: G09G3/00 , G09G3/3258 , G09G3/3233
Abstract: A system may include an electronic display panel having multiple pixels for depicting image data and processing circuitry that may receive a first error value representative of a first difference between a first electrical signal measured at a first pixel of the multiple pixels and an expected electrical signal for the first pixel. The first electrical signal may be based on a test signal transmitted to the first pixel and the expected electrical signal may correspond to an expected response of the first pixel based on the test signal. The processing circuitry may filter the first error value to generate a first compensated error value and may filter the first error value based on the first compensated error value to generate a second compensated error value, where the second compensated error value may filter one or more effects of spatial crosstalk between one or more pixels near the first pixel.
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