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公开(公告)号：US20240036682A1
公开(公告)日：2024-02-01
申请号：US18484320
申请日：2023-10-10
Applicant: Apple Inc.
Inventor： Mohammad Yeke Yazdandoost , Christoph H. Krah
CPC classification number: G06F3/0421 , G06F3/04182 , G06F2203/04109
Abstract: An electronic device may have a touch sensitive display that is insensitive to the presence of moisture. An array of pixels in the display may be used to display images. A display cover layer may overlap the array of pixels. A light source may illuminate an external object such as a finger of a user when the object contacts a surface of the display cover layer. This creates scattered light that may be detected by an array of light sensors. The light source may supply light to an edge of the display cover layer at an angle that ensures total internal reflection within the display cover layer is sustained across the display cover layer even when the display cover layer is immersed in water or otherwise exposed to moisture.
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公开(公告)号：US11816295B2
公开(公告)日：2023-11-14
申请号：US17738912
申请日：2022-05-06
Applicant: Apple Inc.
Inventor： Mohammad Yeke Yazdandoost , Christoph H. Krah
CPC classification number: G06F3/0421 , G06F3/04182 , G06F2203/04109
Abstract: An electronic device may have a touch sensitive display that is insensitive to the presence of moisture. An array of pixels in the display may be used to display images. A display cover layer may overlap the array of pixels. A light source may illuminate an external object such as a finger of a user when the object contacts a surface of the display cover layer. This creates scattered light that may be detected by an array of light sensors. The light source may supply light to an edge of the display cover layer at an angle that ensures total internal reflection within the display cover layer is sustained across the display cover layer even when the display cover layer is immersed in water or otherwise exposed to moisture.
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公开(公告)号：US11592948B2
公开(公告)日：2023-02-28
申请号：US17480905
申请日：2021-09-21
Applicant: Apple Inc.
Inventor： Minh-Dieu Thi Vu , Thomas James Wilson , Christoph H. Krah
IPC: G06F3/044 , G06F3/0354 , G06F3/041 , G06F1/3234
Abstract: A device that can autonomously scan a sensor panel is disclosed. Autonomous scanning can be performed by implementing channel scan logic. In one embodiment, channel scan logic carries out many of the functions that a processor would normally undertake, including generating timing sequences and obtaining result data; comparing scan result data against a threshold value (e.g., in an auto-scan mode); generating row count; selecting one or more scanning frequency bands; power management control; and performing an auto-scan routine in a low power mode.
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公开(公告)号：US20220276739A1
公开(公告)日：2022-09-01
申请号：US17738915
申请日：2022-05-06
Applicant: Apple Inc.
Inventor： Mohammad Yeke Yazdandoost , Christoph H. Krah
Abstract: An electronic device may have a touch sensitive display that is insensitive to the presence of moisture. An array of pixels in the display may be used to display images. A display cover layer may overlap the array of pixels. A light source may illuminate an external object such as a finger of a user when the object contacts a surface of the display cover layer. This creates scattered light that may be detected by an array of light sensors. The light source may supply light to an edge of the display cover layer at an angle that ensures total internal reflection within the display cover layer is sustained across the display cover layer even when the display cover layer is immersed in water or otherwise exposed to moisture.
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公开(公告)号：US11132097B2
公开(公告)日：2021-09-28
申请号：US16882625
申请日：2020-05-25
Applicant: Apple Inc.
Inventor： Minh-Dieu Thi Vu , Thomas James Wilson , Christoph H. Krah
IPC: G06F3/044 , G06F3/0354 , G06F3/041 , G06F1/3234
Abstract: A device that can autonomously scan a sensor panel is disclosed. Autonomous scanning can be performed by implementing channel scan logic. In one embodiment, channel scan logic carries out many of the functions that a processor would normally undertake, including generating timing sequences and obtaining result data; comparing scan result data against a threshold value (e.g., in an auto-scan mode); generating row count; selecting one or more scanning frequency bands; power management control; and performing an auto-scan routine in a low power mode.
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Patent Agency Ranking
公开(公告)号：US11073927B2
公开(公告)日：2021-07-27
申请号：US16517513
申请日：2019-07-19
Applicant: Apple Inc.
Inventor： Christian M. Sauer , Christoph H. Krah , Derek K. Shaeffer , Hasan Akyol , Henry C. Jen , Hopil Bae , John T. Wetherell , Thierry S. Divel , Xiang Lu
Abstract: An integrated touchscreen can include light emitting diodes or organic light emitting diodes (LEDs/OLEDs), display chiplets and touch chiplets disposed in a visible area of the integrated touch screen. For example, the LEDs/OLEDs, display chiplets and touch chiplets can be placed on a substrate by a micro-transfer tool. The integrated touchscreen can also include electrodes disposed in the visible area of the integrated touch screen. The electrodes can be capable of providing display functionality via the one or more display chiplets during display operation (e.g., operating as cathode terminals of the LEDs during the display operation) and capable of providing touch functionality via the touch chiplets during touch operation (e.g., touch node electrodes can be formed from groups of the electrodes and sensed). In some examples, the touch node electrodes can be formed and coupled to touch chiplets via the display chiplets.
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公开(公告)号：US10712866B2
公开(公告)日：2020-07-14
申请号：US15176008
申请日：2016-06-07
Applicant: Apple Inc.
Inventor： Christoph H. Krah , Minh-Dieu Thi Vu , Thomas James Wilson
IPC: G09G5/00 , G06F3/041 , G06F1/3203 , G06F1/3234 , G06F3/044
Abstract: A system and method for autonomously scanning a sensor panel device is disclosed. A sensor panel processor can be disabled after a first predetermined amount of time has elapsed without the sensor panel device sensing any events. One or more system clocks can also be disabled to conserve power. While the processor and one or more system clocks are disabled, the sensor panel device can periodically autonomously scan the sensor panel for touch activity. If one or more results from the autonomous scans exceed a threshold, the sensor panel device re-enables the processor and one or more clocks to actively scan the sensor panel. If the threshold is not exceeded, the sensor panel device continues to periodically autonomously scan the sensor panel without intervention from the processor. The sensor panel device can periodically perform calibration functions to account for any drift that may be present in the system.
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公开(公告)号：US10664095B2
公开(公告)日：2020-05-26
申请号：US16039216
申请日：2018-07-18
Applicant: Apple Inc.
Inventor： Minh-Dieu Thi Vu , Thomas James Wilson , Christoph H. Krah
IPC: G06F3/041 , G06F3/0354 , G06F3/044 , G06F1/3234
Abstract: A device that can autonomously scan a sensor panel is disclosed. Autonomous scanning can be performed by implementing channel scan logic. In one embodiment, channel scan logic carries out many of the functions that a processor would normally undertake, including generating timing sequences and obtaining result data; comparing scan result data against a threshold value (e.g., in an auto-scan mode); generating row count; selecting one or more scanning frequency bands; power management control; and performing an auto-scan routine in a low power mode.
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公开(公告)号：US10402025B2
公开(公告)日：2019-09-03
申请号：US15666169
申请日：2017-08-01
Applicant: Apple Inc.
Inventor： Christoph H. Krah , Marduke Yousefpor
Abstract: A concurrent touch and negative pixel scan performed at a touch panel is disclosed. The concurrent scan can include sensing an object proximate to the touch panel and sensing a negative pixel effect, based the object's grounding condition, at the touch panel, at the same time. As a result, sense signals indicative of the proximity of the object and coupling signals indicative of the negative pixel effect's magnitude can be captured concurrently. Because the negative pixel effect can cause errors or distortions in the sense signals, the coupling signals can be used to compensate the sense signals for the negative pixel effect.
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公开(公告)号：US10146359B2
公开(公告)日：2018-12-04
申请号：US15089432
申请日：2016-04-01
Applicant: Apple Inc.
Inventor： Howard Tang , Christoph H. Krah , Paolo Sacchetto , Chaohao Wang
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G09G3/00
Abstract: A system is disclosed. The system can comprise dynamic drive circuitry configured to drive a plurality of electrodes on a touch screen. The system can also comprise a switching circuit configured to selectively couple the dynamic drive circuitry to one or more of the plurality of electrodes. The system can also comprise a display circuitry configured to selectively update a plurality of display pixels on the touch screen. The dynamic drive circuitry can be configured to set its output based on which of the plurality of electrodes are selectively coupled to the first drive circuitry and which of the display pixels are updated by the display circuitry.
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