公开(公告)号：US11475841B2

公开(公告)日：2022-10-18

申请号：US17000258

申请日：2020-08-21

Applicant: Apple Inc.

Inventor： Shingo Hatanaka ,  Derek Keith Shaeffer ,  Kenichi Ueno ,  Masaki Kinoshita ,  Nobutaka Shimamura

IPC: G09G3/3258

Abstract: A system may include buffer circuitry that receives an input signal representative of image data for display via a pixel. The buffer circuitry may provide a first driving signal during a first frame of the image data to the pixel based on the input signal. The buffer circuitry may include slew booster circuitry. The slew booster circuitry may supply a voltage boost (e.g., additional voltage) to differential pair stage circuitry of the buffer circuit in response to a difference between the input signal and a second driving signal exceeding a threshold increase a rate of change of the input signal provided. The second driving signal may be provided to the pixel during a second frame of the image data preceding the first frame.

公开(公告)号：US10438535B2

公开(公告)日：2019-10-08

申请号：US15697172

申请日：2017-09-06

Applicant: Apple Inc.

Inventor： Derek K. Shaeffer ,  Jesse A. Richmond ,  Kenichi Ueno ,  Kingsuk Brahma ,  Mohammad B. Vahid Far ,  Shingo Hatanaka ,  Yafei Bi

IPC: G09G3/3258 ,  G09G3/36 ,  G09G3/3233 ,  G09G3/20 ,  H03M1/66 ,  G09G3/3275

Abstract: A display device may include a plurality of pixels that display image data on a display, a digital-to-analog converter that outputs a voltage that corresponds to a luminance value to be depicted on a first pixel, and a circuit that amplifies the voltage and outputs an amplified voltage to the first pixel. The circuit may include a capacitor that receives the voltage via the digital-to-analog converter and an amplifier coupled to the capacitor. The amplifier generates the amplified voltage based on the voltage stored the capacitor. The circuit also include switches that couple a first terminal of the capacitor to an output of the amplifier during a first amount of time and couples a second terminal of the capacitor to the output of the amplifier after the first amount of time expires.

公开(公告)号：US20210056907A1

公开(公告)日：2021-02-25

申请号：US17000258

申请日：2020-08-21

Applicant: Apple Inc.

Inventor： Shingo Hatanaka ,  Derek Keith Shaeffer ,  Kenichi Ueno ,  Masaki Kinoshita ,  Nobutaka Shimamura

IPC: G09G3/3258

Abstract: A system may include buffer circuitry that receives an input signal representative of image data for display via a pixel. The buffer circuitry may provide a first driving signal during a first frame of the image data to the pixel based on the input signal. The buffer circuitry may include slew booster circuitry. The slew booster circuitry may supply a voltage boost (e.g., additional voltage) to differential pair stage circuitry of the buffer circuit in response to a difference between the input signal and a second driving signal exceeding a threshold increase a rate of change of the input signal provided. The second driving signal may be provided to the pixel during a second frame of the image data preceding the first frame.

公开(公告)号：US20180082638A1

公开(公告)日：2018-03-22

申请号：US15697172

申请日：2017-09-06

Applicant: Apple Inc.

Inventor： Derek K. Shaeffer ,  Jesse A. Richmond ,  Kenichi Ueno ,  Kingsuk Brahma ,  Mohammad B. Vahid Far ,  Shingo Hatanaka ,  Yafei Bi

IPC: G09G3/3258 ,  G09G3/36 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/2011 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0294 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2340/0435

Abstract: A display device may include a plurality of pixels that display image data on a display, a digital-to-analog converter that outputs a voltage that corresponds to a luminance value to be depicted on a first pixel, and a circuit that amplifies the voltage and outputs an amplified voltage to the first pixel. The circuit may include a capacitor that receives the voltage via the digital-to-analog converter and an amplifier coupled to the capacitor. The amplifier generates the amplified voltage based on the voltage stored the capacitor. The circuit also include switches that couple a first terminal of the capacitor to an output of the amplifier during a first amount of time and couples a second terminal of the capacitor to the output of the amplifier after the first amount of time expires.