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公开(公告)号：US20160202298A1
公开(公告)日：2016-07-14
申请号：US14993711
申请日：2016-01-12
申请人： Apple Inc.
发明人： Kingsuk Brahma , David A. Stronks , Hopil Bae , Wei H. Yao
CPC分类号： G01R27/205 , G09G3/006 , G09G3/2092 , G09G3/2096 , G09G3/3607 , G09G3/3696 , G09G2300/0426 , G09G2310/08 , G09G2320/0223
摘要： A display may have a substrate layer to which a display driver integrated circuit and flexible printed circuit are bonded. The display driver integrated circuit may be provided with switches and control circuitry for controlling the operation of the switches during bond resistance measurements. Test equipment may apply currents to pads in the display driver integrated circuit through contacts in the flexible printed circuit while controlling the switching circuitry. Based on these measurements and the measurement of trace resistances in a dummy flexible printed circuit, the test equipment may determine bond resistances for bonds between the display driver integrated circuit and the display substrate and between the flexible printed circuit and the display substrate. Displays may have master and slave display driver integrated circuits that share coarse reference voltages produced by the master from raw power supply voltages.
摘要翻译： 显示器可以具有显示驱动器集成电路和柔性印刷电路结合到其上的基板层。 显示驱动器集成电路可以设置有用于在接合电阻测量期间控制开关的操作的开关和控制电路。 测试设备可以通过柔性印刷电路中的触点在显示驱动器集成电路中的焊盘上施加电流，同时控制开关电路。 基于这些测量和虚拟柔性印刷电路中的迹线电阻的测量，测试设备可以确定显示驱动器集成电路和显示器基板之间以及柔性印刷电路和显示器基板之间的结合的结合电阻。 显示器可以具有主从显示驱动器集成电路，其从原始电源电压共享由主机产生的粗参考电压。
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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。
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3.发明授权Systems and methods for reducing or eliminating mura artifact using image feedback 有权使用图像反馈减少或消除mura伪影的系统和方法公开(公告)号：US09001097B2
公开(公告)日：2015-04-07
申请号：US13654231
申请日：2012-10-17
申请人： Apple Inc.
发明人： Ahmad Al-Dahle , David A. Stronks , Hopil Bae
CPC分类号： G09G3/3696 , G09G3/006 , G09G3/3655 , G09G2310/067 , G09G2320/0223 , G09G2320/0233 , G09G2320/0693 , G09G2360/145
摘要： Systems, methods, and devices for calibrating an electronic display to reduce or eliminate a mura artifact are provided. The mura artifact may be due to differential behavior of common voltage layers (VCOMs) in the electronic display. One method for reducing or eliminating the mura artifact may involve setting pixels of the electronic display to a first gray level and measuring a luminance difference between light and dark areas of a mura artifact on the electronic display. A value of an operating parameter of the electronic display may be adjusted while monitoring the luminance difference measurement. A value of the operating parameter that causes the luminance difference measurement to be within a specified range of acceptable luminance difference measurement values may be stored in the electronic display.
摘要翻译： 提供了用于校准电子显示器以减少或消除mura伪影的系统，方法和设备。 该mura伪影可能是由于电子显示器中的公共电压层（VCOM）的差异行为。 用于减少或消除凹陷假象的一种方法可以包括将电子显示器的像素设置为第一灰度级并且测量电子显示器上的mura伪影的亮区和暗区之间的亮度差。 可以在监视亮度差测量的同时调整电子显示器的操作参数的值。 导致亮度差测量在可接受的亮度差测量值的指定范围内的操作参数的值可以存储在电子显示器中。
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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。
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公开(公告)号：US10948582B1
公开(公告)日：2021-03-16
申请号：US16294650
申请日：2019-03-06
申请人： Apple Inc.
发明人： Gabriel M. Hoffmann , Christopher D. Gadda , David A. Stronks , Ahmad Al-Dahle , Gregory E. Rogers
IPC分类号： G01S13/60 , G01M17/02 , G01S13/86 , G01S13/931 , G01S13/00
摘要： Aspects of the present disclosure involve a method for determining a road vehicle velocity and slip angle. The current disclosure presents a technique for identifying a vehicle's velocity and slip angle, in the vehicle's coordinate frame. In one embodiment, two or more sensors are orthogonally located on the underside of the vehicle in order to obtain longitudinal and lateral velocity information for slip angle determination. In another embodiment, the two or more sensors can include an array of elements for beam steering and receiver beamforming. Spatial diversity is leveraged in identifying at least a slip angle and/or velocity of the vehicle. Doppler mapping is used as a means for slip angle determination and the clutter ridge of the Doppler map is embraced for identifying the slip angle.
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公开(公告)号：US10919520B1
公开(公告)日：2021-02-16
申请号：US15667692
申请日：2017-08-03
申请人： Apple Inc.
发明人： Christopher D. Gadda , Carlos Alberto De Magalhaes Massera Filho , David A. Stronks , Gabriel M. Hoffmann , Miroslav Baric , Nathaniel B. Honka , Stefan Solyom , Timothee J. Cazenave
IPC分类号： B60W30/02 , B60W10/04 , B60W10/18 , B60W10/20 , B60W40/114 , B60W40/105
摘要： A control system for a vehicle includes a plurality of vehicle actuators that are operable to affect actual chassis-level accelerations, a vehicle intelligence unit that determines a motion plan, a vehicle motion control unit that determines a chassis-level motion request based on the motion plan, and a chassis control unit that determines actuator commands for the plurality of vehicle actuators based on the chassis-level motion request and actuator identity information that describes presently available actuators from the plurality of vehicle actuators.
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公开(公告)号：US09626046B2
公开(公告)日：2017-04-18
申请号：US14035104
申请日：2013-09-24
申请人： APPLE INC.
发明人： David A. Stronks , Ahmad Al-Dahle , Wei H. Yao
CPC分类号： G06F3/044 , G02F1/13624 , G02F2001/13606 , G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F2203/04107 , G09G3/20 , G09G3/3655 , G09G2300/0847 , G09G2320/0209
摘要： Devices and methods for reducing display-to-touch crosstalk are provided. In or more examples, an electronic display panel may include a pixel. The pixel may include a pixel electrode, a common electrode, and a first transistor having a first source coupled to a data line, a first gate coupled to a gate line, and a first drain coupled to the pixel electrode. The pixel may also include a second transistor having a second source coupled to the common electrode, a second gate coupled to the gate line, and a second drain coupled to a common voltage source. The second transistor may be configured to cause a parasitic capacitance between the gate line and the second drain of the second transistor and to reduce an effect of a parasitic capacitance between the gate line and the first drain of the first transistor.
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公开(公告)号：US20140139415A1
公开(公告)日：2014-05-22
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电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。
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公开(公告)号：US09190011B2
公开(公告)日：2015-11-17
申请号：US13654242
申请日：2012-10-17
申请人： APPLE INC.
发明人： Ahmad Al-Dahle , Hopil Bae , Sang Y. Youn , Yafei Bi , Wei H. Yao , David A. Stronks
CPC分类号： G09G5/003 , G09G3/2092 , G09G2330/027 , G09G2330/06
摘要： Methods and devices employing mura prevention circuitry, are provided. In one example, a method may include supplying a first voltage pathway between a common electrode driver and a common electrode of an electronic display device and supplying a second voltage pathway between the common electrode driver and ground. Mura prevention circuitry may be supplied that activates the first voltage pathway when the electronic display device is turned on and an activation gate signal is provided from a gate corresponding to the common electrode driver. Further, the mura prevention circuitry may activate the second voltage pathway when the electronic display device is turned off or no activation gate signal is provided from the gate corresponding to the common electrode driver.
摘要翻译： 提供了采用mura预防电路的方法和装置。 在一个示例中，方法可以包括在公共电极驱动器和电子显示装置的公共电极之间提供第一电压路径，并且在公共电极驱动器和地之间提供第二电压路径。 可以提供Mura防止电路，其在电子显示装置接通时激活第一电压通路，并且从对应于公共电极驱动器的门提供激活门信号。 此外，当电子显示装置关闭或从对应于公共电极驱动器的门提供激活栅极信号时，防护电路可以激活第二电压路径。
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公开(公告)号：US09952265B2
公开(公告)日：2018-04-24
申请号：US14993711
申请日：2016-01-12
申请人： Apple Inc.
发明人： Kingsuk Brahma , David A. Stronks , Hopil Bae , Wei H. Yao
CPC分类号： G01R27/205 , G09G3/006 , G09G3/2092 , G09G3/2096 , G09G3/3607 , G09G3/3696 , G09G2300/0426 , G09G2310/08 , G09G2320/0223
摘要： A display may have a substrate layer to which a display driver integrated circuit and flexible printed circuit are bonded. The display driver integrated circuit may be provided with switches and control circuitry for controlling the operation of the switches during bond resistance measurements. Test equipment may apply currents to pads in the display driver integrated circuit through contacts in the flexible printed circuit while controlling the switching circuitry. Based on these measurements and the measurement of trace resistances in a dummy flexible printed circuit, the test equipment may determine bond resistances for bonds between the display driver integrated circuit and the display substrate and between the flexible printed circuit and the display substrate. Displays may have master and slave display driver integrated circuits that share coarse reference voltages produced by the master from raw power supply voltages.
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