Patents by Inventor Henry C. Jen
Henry C. Jen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240038129Abstract: Hybrid architectures and method methods of operating a display panel are described. In an embodiment, row driver and pixel driver functions are combined in a group of backbone hybrid pixel driver chips, wherein global signal lines are distributed to the backbone hybrid pixel driver chips, where the global signals are manipulated and distributed to a row of pixel driver chips.Type: ApplicationFiled: June 28, 2023Publication date: February 1, 2024Inventors: Xiang Lu, Mahdi Farrokh Baroughi, Xiaofeng Wang, Derek K. Shaeffer, Henry C. Jen, Hopil Bae
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Publication number: 20240012515Abstract: Touch sensitive display technologies (e.g., integrated touch-display pixel-based systems) are evolving to contain more analog and digital circuits inside the panel itself instead of the traditionally simple thin-film transistors. This improves the display characteristics but makes those circuits more vulnerable to the impact of external ESD strikes, which can degrade the user experience. This disclosure describes a series of circuits and techniques to mitigate the impact of these discharges on front of screen artifacts and potential false touches. These circuits and techniques may include: performing configuration-only panel updates independently of the image refresh rate, improving the in-panel memory circuits to make them resistant to unexpected pin toggles via disabling of a write path in response to a read clock, implementing a pin corruption detector and implementing a supply injection detector.Type: ApplicationFiled: June 20, 2023Publication date: January 11, 2024Inventors: Pablo Moreno Galbis, Xiang Lu, Bin Huang, Ling Zhang, Nikhil Acharya, Derek K. Shaeffer, Stanley B. Wang, Yongjie Jiang, Hopil Bae, Jiayi Jin, Ce Zhang, Young Don Bae, Giovanni Azzellino, Wooseung Yang, Mahdi Farrokh Baroughi, Weijun Yao, Rajesh Velayuthan, Eric A. Hildebrandt, Henry C. Jen
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Publication number: 20240004491Abstract: An integrated touchscreen can include light emitting diodes or organic light emitting diodes (LED s/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.Type: ApplicationFiled: September 15, 2023Publication date: January 4, 2024Inventors: Christian M. SAUER, Christoph H. KRAH, Derek K. SHAEFFER, Hasan AKYOL, Henry C. JEN, John T. WETHERELL
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Patent number: 11783739Abstract: Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.Type: GrantFiled: August 9, 2021Date of Patent: October 10, 2023Assignee: Apple Inc.Inventors: Hasan Akyol, Xuebei Yang, Chung-Lun Edwin Hsu, Henry C. Jen, John T. Wetherell
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Publication number: 20230316998Abstract: Local passive matrix displays and methods of operation are described. In an embodiment, the display includes a pixel driver chip coupled with a matrix of rows and columns of LEDs. The pixel driver chips may be arranged in rows across the display with separate portions to operate separate matrices of LEDs.Type: ApplicationFiled: April 4, 2023Publication date: October 5, 2023Inventors: Derek K. Shaeffer, Mahdi Farrokh Baroughi, Xiaofeng Wang, Sam S. Li, John T. Wetherell, Henry C. Jen, Xiang Lu, Hasan Akyol, Hopil Bae, Xiang Fang, Hjalmar Edzer Ayco Huitema, Tore Nauta
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Patent number: 11775095Abstract: 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.Type: GrantFiled: July 23, 2021Date of Patent: October 3, 2023Assignee: Apple Inc.Inventors: Christian M. Sauer, Christoph H. Krah, Derek K. Shaeffer, Hasan Akyol, Henry C. Jen, John T. Wetherell, Thierry S. Divel
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Patent number: 11727850Abstract: Hybrid architectures and method methods of operating a display panel are described. In an embodiment, row driver and pixel driver functions are combined in a group of backbone hybrid pixel driver chips, wherein global signal lines are distributed to the backbone hybrid pixel driver chips, where the global signals are manipulated and distributed to a row of pixel driver chips.Type: GrantFiled: April 22, 2022Date of Patent: August 15, 2023Assignee: Apple Inc.Inventors: Xiang Lu, Mahdi Farrokh Baroughi, Xiaofeng Wang, Derek K. Shaeffer, Henry C. Jen, Hopil Bae
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Publication number: 20230237950Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.Type: ApplicationFiled: December 15, 2022Publication date: July 27, 2023Inventors: Kapil V. Sakariya, Tore Nauta, Hopil Bae, Henry C. Jen
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Publication number: 20230222955Abstract: Display panel redundancy schemes and methods of operation are described. In an embodiment, and display panel includes an array of drivers (e.g. microdrivers), each of which including multiple portions to independently receive control and pixel bits. In an embodiment, each driver portion is to control a group of redundant emission elements.Type: ApplicationFiled: December 15, 2022Publication date: July 13, 2023Inventors: Kapil V. Sakariya, Tore Nauta, Hopil Bae, Henry C. Jen, James E. Pedder, Sunggu Kang, Shingo Hatanaka, Xiang Lu, Mahdi Farrokh Baroughi, Hasan Akyol, Saif Choudhary, Ion Bita
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Patent number: 11645976Abstract: Local passive matrix displays and methods of operation are described. In an embodiment, the display includes a pixel driver chip coupled with a matrix of rows and columns of LEDs. The pixel driver chips may be arranged in rows across the display with separate portions to operate separate matrices of LEDs.Type: GrantFiled: January 14, 2022Date of Patent: May 9, 2023Assignee: Apple Inc.Inventors: Derek K. Shaeffer, Mahdi Farrokh Baroughi, Xiaofeng Wang, Sam S. Li, John T. Wetherell, Henry C. Jen, Xiang Lu, Hasan Akyol, Hopil Bae, Xiang Fang, Hjalmar Edzer Ayco Huitema, Tore Nauta
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Publication number: 20230062202Abstract: An electronic device may have a display. The display may include an array of pixels formed on a silicon substrate. Display driver circuitry may be formed in a display driver integrated circuit that outputs display data and other control signals for operating the display. An interposer structure may be included in the electronic device. The interposer structure may be attached to the silicon display substrate and may only partially overlap the silicon display substrate. The display driver integrated circuit may be attached to the interposer structure and provide signals to the display pixels through the interposer structure. In another possible arrangement, the display driver integrated circuit may bridge a gap between the silicon display substrate and the flexible printed circuit. The display driver integrated circuit only partially overlaps the silicon display substrate in this arrangement.Type: ApplicationFiled: May 26, 2022Publication date: March 2, 2023Inventors: Steven M Scardato, Baris Cagdaser, Patrick B Bennett, Michael Slootsky, Alejandro X Levander, Henry C Jen
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Patent number: 11568787Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.Type: GrantFiled: September 2, 2021Date of Patent: January 31, 2023Inventors: Kapil V. Sakariya, Tore Nauta, Hopil Bae, Henry C. Jen
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Patent number: 11568789Abstract: Display panel redundancy schemes and methods of operation are described. In an embodiment, and display panel includes an array of drivers (e.g. microdrivers), each of which including multiple portions to independently receive control and pixel bits. In an embodiment, each driver portion is to control a group of redundant emission elements.Type: GrantFiled: June 3, 2021Date of Patent: January 31, 2023Inventors: Kapil V. Sakariya, Tore Nauta, Hopil Bae, Henry C. Jen, James E. Pedder, Sunggu Kang, Shingo Hatanaka, Xiang Lu, Mahdi Farrokh Baroughi, Hasan Akyol, Saif Choudhary, Ion Bita
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Publication number: 20220246082Abstract: Hybrid architectures and method methods of operating a display panel are described. In an embodiment, row driver and pixel driver functions are combined in a group of backbone hybrid pixel driver chips, wherein global signal lines are distributed to the backbone hybrid pixel driver chips, where the global signals are manipulated and distributed to a row of pixel driver chips.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Inventors: Xiang Lu, Mahdi Farrokh Baroughi, Xiaofeng Wang, Derek K. Shaeffer, Henry C. Jen, Hopil Bae
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Publication number: 20220208091Abstract: Local passive matrix displays and methods of operation are described. In an embodiment, the display includes a pixel driver chip coupled with a matrix of rows and columns of LEDs. The pixel driver chips may be arranged in rows across the display with separate portions to operate separate matrices of LEDs.Type: ApplicationFiled: January 14, 2022Publication date: June 30, 2022Inventors: Derek K. Shaeffer, Mahdi Farrokh Baroughi, Xiaofeng Wang, Sam S. Li, John T. Wetherell, Henry C. Jen, Xiang Lu, Hasan Akyol, Hopil Bae, Xiang Fang, Hjalmar Edzer Ayco Huitema, Tore Nauta
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Patent number: 11341893Abstract: Hybrid architectures and method methods of operating a display panel are described. In an embodiment, row driver and pixel driver functions are combined in a group of backbone hybrid pixel driver chips, wherein global signal lines are distributed to the backbone hybrid pixel driver chips, where the global signals are manipulated and distributed to a row of pixel driver chips.Type: GrantFiled: November 4, 2020Date of Patent: May 24, 2022Assignee: Apple Inc.Inventors: Xiang Lu, Mahdi Farrokh Baroughi, Xiaofeng Wang, Derek K. Shaeffer, Henry C. Jen, Hopil Bae
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Publication number: 20220101790Abstract: Systems and methods may reduce or eliminate image artifacts due to a defective pixel of an electronic display. An electronic display may include pixels that respectively include a self-emissive element, pixel drive circuitry that supplies a pixel drive current to drive the self-emissive element, and signal routing circuitry that reduces or eliminates a visual artifact due to a defective pixel among the pixels. The signal routing circuitry may do this by turning off the self-emissive element, supplying image data from the pixel drive circuitry to a first adjacent pixel, or receiving image data from other pixel drive circuitry from the first adjacent pixel or a second adjacent pixel.Type: ApplicationFiled: September 10, 2021Publication date: March 31, 2022Inventors: John T. Wetherell, Cheuk Chi Lo, Chun-Yao Huang, Lingtao Wang, Derek Keith Shaeffer, Henry C. Jen, Hasan Akyol, Xuebei Yang, Chung-Lun Edwin Hsu, Patrick Bryce Bennett, Chun-Ming Tang, Yingkan Lin, Sheng Zhang, Chaohao Wang, Runjie Xu, Shingo Hatanaka
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Publication number: 20220076599Abstract: Embodiments disclosed herein provide systems and methods for testing and repairing various aspects of an electronic display. The electronic display includes a reference array and an active array. The electronic display also includes test circuitry used to test individual or any combination of pixels of the electronic display. Switches may be disposed between the pixels and the test circuitry to be to repair the various components of the electronic display.Type: ApplicationFiled: August 9, 2021Publication date: March 10, 2022Inventors: Hasan Akyol, Xuebei Yang, Chung-Lun Edwin Hsu, Henry C. Jen, John T. Wetherell
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Patent number: 11263963Abstract: Local passive matrix displays and methods of operation are described. In an embodiment, the display includes a pixel driver chip coupled with a matrix of rows and columns of LEDs. The pixel driver chips may be arranged in rows across the display with separate portions to operate separate matrices of LEDs.Type: GrantFiled: February 11, 2019Date of Patent: March 1, 2022Assignee: Apple Inc.Inventors: Derek K. Shaeffer, Mahdi Farrokh Baroughi, Xiaofeng Wang, Sam S. Li, John T. Wetherell, Henry C. Jen, Xiang Lu, Hasan Akyol, Hopil Bae, Xiang Fang, Hjalmar Edzer Ayco Huitema, Tore Nauta
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Publication number: 20220059010Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.Type: ApplicationFiled: September 2, 2021Publication date: February 24, 2022Inventors: Kapil V. Sakariya, Tore Nauta, Hopil Bae, Henry C. Jen