公开(公告)号：US20190221146A1

公开(公告)日：2019-07-18

申请号：US16361018

申请日：2019-03-21

申请人： Apple Inc.

发明人： 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分类号： G09G3/00

摘要： 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：US20180268758A1

公开(公告)日：2018-09-20

申请号：US15964662

申请日：2018-04-27

申请人： Apple Inc.

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

IPC分类号： G09G3/3233 ,  G09G3/3216

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

摘要： 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

申请人： Apple Inc.

发明人： 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分类号： G09G3/3233 ,  G09G3/3275

CPC分类号： 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

摘要： 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：US20170103703A1

公开(公告)日：2017-04-13

申请号：US15273470

申请日：2016-09-22

申请人： Apple Inc.

发明人： Yafei Bi ,  Xiaofeng Wang ,  Haifeng Li ,  Mohammad B. Vahid Far ,  Hopil Bae ,  Hung Shen Lin ,  Hyunwoo Nho ,  Wei H. Yao

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

CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2310/0202 ,  G09G2310/0291 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/12

摘要： An electronic device includes one or more unit pixels and threshold voltage (Vth) sensing circuitry. The threshold voltage sensing circuitry senses Vth of the one or more unit pixels, by: sampling a charge of a capacitor of the one or more unit pixels, transitioning from the sampling, and reading out the threshold voltage based upon a change in the charge of the capacitor, such that an operation of the one or more unit pixels may be modified based upon the threshold voltage.

公开(公告)号：US20170103688A1

公开(公告)日：2017-04-13

申请号：US15273458

申请日：2016-09-22

申请人： Apple Inc.

发明人： Yafei Bi ,  Xiaofeng Wang ,  Haifeng Li ,  Mohammad B. Vahid Far ,  Hopil Bae ,  Hung Shen Lin ,  Hyunwoo Nho ,  Wei H. Yao

IPC分类号： G09G3/00 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2310/0202 ,  G09G2310/0291 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/12

摘要： An electronic device includes one or more unit pixels with a first node, a second node, and a third node. The device includes light-emitting-diode (LED) voltage (Vled) sensing circuitry, that senses Vled of the one or more unit pixels, by: sampling a charge of a capacitor of the one or more unit pixels, transitioning from the sampling, and reading out the Vled based upon a change in the charge of the capacitor, such that an operation of the unit pixel may be modified based upon the Vled.

公开(公告)号：US09524676B2

公开(公告)日：2016-12-20

申请号：US14263937

申请日：2014-04-28

申请人： Apple Inc.

发明人： Yafei Bi ,  Wei H. Yao ,  Ahmad Al-Dahle ,  Jean-Pierre S. Guillou ,  Hyunwoo Nho ,  Koorosh Aflatooni

IPC分类号： G09G3/32

CPC分类号： G09G3/3275 ,  G09G3/3233 ,  G09G2320/041 ,  G09G2320/046 ,  G09G2320/0626 ,  G09G2320/0633 ,  G09G2320/0673 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/045

摘要： A display may receive image data to be displayed for a user of an electronic device. Display driver circuitry in the display may analyze the data to detect static data. The image data may contain static frames of data or static portions of a frame of data. In response to detection of static data, the display driver circuitry can take actions to avoid display damage due to burn-in effects. The display driver circuitry may reduce a peak luminance value associated with a peak luminance control algorithm, may reduce display brightness, may map image data to reduced brightness levels, or may take other actions to ensure that display pixels in the display are not damaged. Temperature information may be used in determining how to classify information as static data and in determining how significantly to reduce display pixel drive currents in response to the detection of static image data.

摘要翻译： 显示器可以接收要为电子设备的用户显示的图像数据。 显示器中的显示驱动电路可能会分析数据以检测静态数据。 图像数据可以包含数据的静态帧或数据帧的静态部分。 响应于静态数据的检测，显示驱动器电路可以采取行动以避免由于老化效应引起的显示损坏。 显示驱动器电路可以减少与峰值亮度控制算法相关联的峰值亮度值，可以减少显示亮度，可以将图像数据映射到降低的亮度级别，或者可以采取其他动作来确保显示器中的显示像素不被损坏。 温度信息可以用于确定如何将信息分类为静态数据，以及在确定响应于静态图像数据的检测来显着降低显示像素驱动电流的程度。

公开(公告)号：US20140375704A1

公开(公告)日：2014-12-25

申请号：US14263937

申请日：2014-04-28

申请人： Apple Inc.

发明人： Yafei Bi ,  Wei H. Yao ,  Ahmad Al-Dahle ,  Jean-Pierre S. Guillou ,  Hyunwoo Nho ,  Koorosh Aflatooni

IPC分类号： G09G3/32

CPC分类号： G09G3/3275 ,  G09G3/3233 ,  G09G2320/041 ,  G09G2320/046 ,  G09G2320/0626 ,  G09G2320/0633 ,  G09G2320/0673 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/045

摘要： A display may receive image data to be displayed for a user of an electronic device. Display driver circuitry in the display may analyze the data to detect static data. The image data may contain static frames of data or static portions of a frame of data. In response to detection of static data, the display driver circuitry can take actions to avoid display damage due to burn-in effects. The display driver circuitry may reduce a peak luminance value associated with a peak luminance control algorithm, may reduce display brightness, may map image data to reduced brightness levels, or may take other actions to ensure that display pixels in the display are not damaged. Temperature information may be used in determining how to classify information as static data and in determining how significantly to reduce display pixel drive currents in response to the detection of static image data.

摘要翻译： 显示器可以接收要为电子设备的用户显示的图像数据。 显示器中的显示驱动电路可能会分析数据以检测静态数据。 图像数据可以包含数据的静态帧或数据帧的静态部分。 响应于静态数据的检测，显示驱动器电路可以采取行动以避免由于老化效应引起的显示损坏。 显示驱动器电路可以减少与峰值亮度控制算法相关联的峰值亮度值，可以减少显示亮度，可以将图像数据映射到降低的亮度级别，或者可以采取其他动作来确保显示器中的显示像素不被损坏。 温度信息可以用于确定如何将信息分类为静态数据，以及在确定响应于静态图像数据的检测来显着降低显示像素驱动电流的程度。

公开(公告)号：US11810494B2

公开(公告)日：2023-11-07

申请号：US17820190

申请日：2022-08-16

申请人： Apple Inc.

发明人： Jie Won Ryu ,  ByoungSuk Kim ,  David S Zalatimo ,  Graeme M Williams ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jesse R Manders ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Sachiko Oda ,  Shatam Agarwal ,  Yao Shi

IPC分类号： G09G3/20 ,  H03M1/10

CPC分类号： G09G3/2044 ,  H03M1/1019 ,  G09G2310/027 ,  G09G2320/0276

摘要： An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.

公开(公告)号：US20230087480A1

公开(公告)日：2023-03-23

申请号：US17820190

申请日：2022-08-16

申请人： Apple Inc.

发明人： Jie Won Ryu ,  ByoungSuk Kim ,  David S. Zalatimo ,  Graeme M. Williams ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jesse R. Manders ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Sachiko Oda ,  Shatam Agarwal ,  Yao Shi

IPC分类号： G09G3/20 ,  H03M1/10

摘要： An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.

公开(公告)号：US20220375388A1

公开(公告)日：2022-11-24

申请号：US17735843

申请日：2022-05-03

申请人： Apple Inc.

发明人： Hyunsoo Kim ,  Hyunwoo Nho ,  Hoon Sik Kim ,  Shatam Agarwal ,  Mahdi Farrokh Baroughi

IPC分类号： G09G3/20 ,  G09G3/00

摘要： The present disclosure relates to systems and methods to control brightness and color output in foldable displays. A foldable electronic display may, when folded, includes a first part in a first plane and a second part in a second plane different from the first plane. A brightness or color setting of the first part may be controlled independently of a brightness or color setting of the second part.