公开(公告)号：US20160247456A1

公开(公告)日：2016-08-25

申请号：US14988594

申请日：2016-01-05

申请人： Apple Inc.

发明人： Hung Sheng Lin ,  Chin-Wei Lin ,  Tsung-Ting Tsai ,  Sang Y. Youn ,  Hyunwoo Nho

IPC分类号： G09G3/3266 ,  G11C19/00

CPC分类号： G09G3/3266 ,  G09G3/2022 ,  G09G3/2092 ,  G09G2300/0408 ,  G09G2310/0286 ,  G11C19/00

摘要： This application sets forth a circuit configuration for a light emitting diode (LED) or organic light emitting diode (OLED) display. The circuit configuration allows for the pulse-width modulation (PWM) of each emission signal sent to each line of the display. The PWM of each emission signal is accomplished using a gate-in-panel (GIP) controller of the display. The GIP controller uses an arrangement of shift register outputs and a programmable clock input to control an output of an inverter that provides the emission signal. The programmable clock input can be programmed according to a desired timing or duty cycle for the emission signal. In this way, by limiting the duty cycle of the emission signal, dimming and other display features can be exhibited by the LED or OLED display.

摘要翻译： 该应用阐述了用于发光二极管（LED）或有机发光二极管（OLED）显示器的电路配置。 电路配置允许发送到显示器的每一行的每个发射信号的脉冲宽度调制（PWM）。 每个发射信号的PWM通过显示器的面板（GIP）控制器实现。 GIP控制器使用移位寄存器输出和可编程时钟输入的布置来控制提供发射信号的逆变器的输出。 可编程时钟输入可根据发射信号所需的定时或占空比进行编程。 以这种方式，通过限制发射信号的占空比，LED或OLED显示器可以显示调光和其他显示特征。

公开(公告)号：US20140071111A1

公开(公告)日：2014-03-13

申请号：US13673669

申请日：2012-11-09

申请人： APPLE INC.

发明人： Taif Ahmed Said ,  Kevin J. White ,  Sang Y. Youn

IPC分类号： G09G5/00

CPC分类号： G09G5/00 ,  G09G3/3696 ,  G09G2330/021 ,  G09G2330/026

摘要： An electronic display includes a display panel. The display panel includes a pixel array and receives a supply voltage. The display panel also includes a panel driver configured to generate a gate line voltage. The panel driver also supplies the gate line voltage to the display panel based on a comparison between the gate line voltage and the supply voltage.

摘要翻译： 电子显示器包括显示面板。 显示面板包括像素阵列并接收电源电压。 显示面板还包括被配置为产生栅极线电压的面板驱动器。 基于栅极线电压和电源电压之间的比较，面板驱动器还将栅极线电压提供给显示面板。

公开(公告)号：US11842708B2

公开(公告)日：2023-12-12

申请号：US18160495

申请日：2023-01-27

申请人： Apple Inc.

发明人： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei H. Yao

IPC分类号： G09G5/10 ,  G06V40/13

CPC分类号： G09G5/10 ,  G06V40/13 ,  G06V40/1318 ,  G09G2320/0626 ,  G09G2360/144 ,  G09G2360/148

摘要： An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

公开(公告)号：US10529053B2

公开(公告)日：2020-01-07

申请号：US15711831

申请日：2017-09-21

申请人： Apple Inc.

发明人： Shengkui Gao ,  Hung Sheng Lin ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Katherine W. Song ,  Mohammad Hajirostam ,  Myung-Je Cho ,  Rui Zhang ,  Sang Y. Youn ,  Wei H. Yao ,  Yafei Bi

IPC分类号： G06T3/40 ,  G06T7/90 ,  G06T7/00 ,  G06T5/00

摘要： A display device may include a display having a pixels and a processor. The processor may receive image data, determine a digital offset value for a pixel based on a location of the pixel, such that the digital offset value compensates for one or more non-uniformity properties of the pixel. The processor may determine a scale factor associated with the pixel based on at least two of a luminance setting for the display, a driving mode of the display, and a gray level value for the pixel. The processor may then generate correction image data by applying the scale factor to the digital offset value, generate compensated image data based on the correction image data and the image data, and provide the compensated image data to the display.

公开(公告)号：US20190228740A1

公开(公告)日：2019-07-25

申请号：US16222492

申请日：2018-12-17

申请人： Apple Inc.

发明人： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei Y. Yao

IPC分类号： G09G5/10 ,  G06K9/00

CPC分类号： G09G5/10 ,  G06K9/00013 ,  G06K9/0004 ,  G09G2320/0626 ,  G09G2360/144 ,  G09G2360/148

摘要： An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

公开(公告)号：US10157590B1

公开(公告)日：2018-12-18

申请号：US15257448

申请日：2016-09-06

申请人： Apple Inc.

发明人： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei Y. Yao

IPC分类号： G09G5/00 ,  G09G5/10 ,  G06F3/041 ,  G06K9/00

摘要： An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

公开(公告)号：US09734756B2

公开(公告)日：2017-08-15

申请号：US14315783

申请日：2014-06-26

申请人： Apple Inc.

发明人： Vasudha Gupta ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Sang Y. Youn ,  Young Bae Park

IPC分类号： G09G3/32 ,  G09G3/3233 ,  G09G3/3266

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286

摘要： An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.

公开(公告)号：US09318068B2

公开(公告)日：2016-04-19

申请号：US14081834

申请日：2013-11-15

申请人： APPLE INC.

发明人： David A. Stronks ,  Hopil Bae ,  Kingsuk Brahma ,  Sang Y. Youn

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3648 ,  G09G2310/0248 ,  G09G2330/021

摘要： Systems and methods for efficiently generating display driver timing signals are provided. In one example, display driver circuitry of an electronic display may provide a negative voltage from a negative voltage supply to display control circuitry during a first period and may provide a positive voltage from a positive voltage supply to the display control circuitry during a second period. After providing the negative voltage during the first period but before providing the positive voltage during the second period, the display driver circuitry may precharge the capacitance of the display control circuitry to ground. In this way, the positive voltage supply substantially does not supply charge to raise the voltage on the capacitance of the display control circuitry from the negative voltage to ground.

摘要翻译： 提供了有效地产生显示驱动器定时信号的系统和方法。 在一个示例中，电子显示器的显示驱动器电路可以在第一时段期间从负电压源提供负电压到显示控制电路，并且可以在第二时段期间从正电压电源向显示控制电路提供正电压。 在第一时段内提供负电压之后但在第二周期期间提供正电压之前，显示驱动器电路可以将显示控制电路的电容预充电到地。 以这种方式，正电压基本上不提供电荷以将显示控制电路的电容的电压从负电压提升到地。

公开(公告)号：US20140132585A1

公开(公告)日：2014-05-15

申请号：US13890928

申请日：2013-05-09

申请人： Apple Inc

发明人： Sang Y. Youn ,  Hopil Bae ,  David A. Stronks ,  Kingsuk Brahma ,  Taif A. Syed

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G2310/0297 ,  G09G2330/021

摘要： The present disclosure relates to devices and methods for reducing power consumption of a display. One electronic display includes a first switch coupled between a first gate of a first transistor and a second gate of a second transistor to selectively connect the first gate to the second gate. The display includes a second switch coupled between the second gate of the second transistor and a third gate of a third transistor to selectively connect the second gate to the third gate. The display also includes driving circuitry that controls the first switch to connect the first gate to the second gate to share a first charge between the first and second gates. The driving circuitry also controls the second switch to connect the second gate to the third gate to share a second charge between the second and third gates. Accordingly, power consumption of the display may be reduced.

摘要翻译： 本公开涉及用于降低显示器的功耗的装置和方法。 一个电子显示器包括耦合在第一晶体管的第一栅极和第二晶体管的第二栅极之间的第一开关，以选择性地将第一栅极连接到第二栅极。 显示器包括耦合在第二晶体管的第二栅极和第三晶体管的第三栅极之间的第二开关，以选择性地将第二栅极连接到第三栅极。 显示器还包括控制第一开关以将第一栅极连接到第二栅极以共享第一和第二栅极之间的第一电荷的驱动电路。 驱动电路还控制第二开关以将第二栅极连接到第三栅极，以在第二和第三栅极之间共享第二电荷。 因此，可以减少显示器的功耗。

公开(公告)号：US20140125645A1

公开(公告)日：2014-05-08

申请号：US13710884

申请日：2012-12-11

申请人： APPLE INC.

发明人： Mir B. Ghaderi ,  Shafiq M. Jamal ,  Sang Y. Youn

IPC分类号： G09G3/36

CPC分类号： G09G3/006

摘要： A method for testing integrated circuit-to-substrate joints that electrically connect an IC to a substrate. An ammeter is coupled to a test node of the driver IC, while the test node is coupled to a current source, and a measured current output of the ammeter is recorded. A voltmeter is coupled to the test node while the test node is coupled to an end node of a group of dummy IC-to-substrate joints that are daisy chained; a first measured voltage output of the voltmeter is then recorded. The IC then couples the test node to another end node of the daisy chained dummy joints, and a second measured voltage output is recorded. A resistance or admittance value for the electrical connection of the IC to the substrate is then computed, using the first and second measured voltage outputs and the measured current output. Other embodiments are also described and claimed.

摘要翻译： 一种用于测试将IC电连接到衬底的集成电路到衬底接头的方法。 电流表耦合到驱动器IC的测试节点，而测试节点耦合到电流源，并记录电流表的测量电流输出。 电压表耦合到测试节点，而测试节点耦合到菊花链的一组虚拟IC到衬底接头的端节点; 然后记录电压表的第一测量电压输出。 然后，IC将测试节点耦合到菊花链虚拟接头的另一端节点，并记录第二测量电压输出。 然后使用第一和第二测量电压输出和测量的电流输出来计算IC与衬底的电连接的电阻或导纳值。 还描述和要求保护其他实施例。