Patents by Inventor Tsung-ting Tsai
Tsung-ting Tsai 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: 20250148969Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.Type: ApplicationFiled: January 10, 2025Publication date: May 8, 2025Inventors: Chin-Wei Lin, Hung Sheng Lin, Vasudha Gupta, Shinya Ono, Tsung-Ting Tsai, Shyuan Yang
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Patent number: 12288522Abstract: An electronic device includes a display and a sensor underneath the display. The display has a full pixel density region and a reduced pixel density region. Compared to pixels in the full pixel density region, pixels in the reduced pixel density region can be controlled using overdriven power supply voltages, overdriven scan control signals, different initialization and reset voltages, and can include capacitors and transistors with different physical and electrical characteristics. Gate drivers provide scan signals to pixels in the full pixel density region, whereas overdrive buffers provide overdrive scan signals to pixels in the reduced pixel density region. The pixels in the full pixel density region and the pixels in the reduced pixel density region can be controlled using different black level or gamma settings for each color channel and can be adjusted physically to match luminance, color, as well as to mitigate differences in temperature and aging impact.Type: GrantFiled: July 11, 2023Date of Patent: April 29, 2025Assignee: Apple Inc.Inventors: Shyuan Yang, Salman Kabir, Ricardo A Peterson, Warren S Rieutort-Louis, Ting-Kuo Chang, Qing Li, Yuchi Che, Tsung-Ting Tsai, Feng Wen, Abbas Jamshidi Roudbari, Kyounghwan Kim, Graeme M Williams, Kingsuk Brahma, Yue Jack Chu, Junbo Wu, Chieh-Wei Chen, Bo-Ren Wang, Injae Hwang, Wenbing Hu
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Publication number: 20250040358Abstract: An organic light-emitting diode display may have thin-film transistor circuitry formed on a substrate. The display and substrate may have rounded corners. A pixel definition layer may be formed on the thin-film transistor circuitry. Openings in the pixel definition layer may be provided with emissive material overlapping respective anodes for organic light-emitting diodes. A cathode layer may cover the array of pixels. A ground power supply path may be used to distribute a ground voltage to the cathode layer. The ground power supply path may be formed from a metal layer that is shorted to the cathode layer using portions of a metal layer that forms anodes for the diodes, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, may include laser-deposited metal on the cathode layer, and may have other structures that facilitate distribution of the ground power supply.Type: ApplicationFiled: October 16, 2024Publication date: January 30, 2025Inventors: Chin-Wei Lin, Stephen S. Poon, Warren S. Rieutort-Louis, Cheng-Ho Yu, ChoongHo Lee, Doh-Hyoung Lee, Ting-Kuo Chang, Tsung-Ting Tsai, Vasudha Gupta, Younggu Lee
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Patent number: 12205531Abstract: An electronic device comprises a display and a controller. The controller is configured to provide a first frequency refresh rate to the display. The controller is also configured to generate a control signal configured to control emission of a light emitting diode of a display pixel of the display at a second frequency based on whether the first frequency refresh rate of the display is less than a predetermined threshold value.Type: GrantFiled: April 25, 2023Date of Patent: January 21, 2025Assignee: Apple Inc.Inventors: Chin-Wei Lin, Hung Sheng Lin, Vasudha Gupta, Shinya Ono, Tsung-Ting Tsai, Shyuan Yang
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Patent number: 12207512Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.Type: GrantFiled: November 17, 2023Date of Patent: January 21, 2025Assignee: Apple Inc.Inventors: Cheng-Ho Yu, Chin-Wei Lin, Shyuan Yang, Ting-Kuo Chang, Tsung-Ting Tsai, Warren S. Rieutort-Louis, Shih-Chang Chang, Yu Cheng Chen, John Z. Zhong
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Publication number: 20250008799Abstract: A display may include an active area with a first region and a second region. The first region may overlap an input-output component such as a camera and may have a higher transparency than the second region. The first region may have a lower pixel density than the second region. Signal lines that pass through the first region may have transparent portions that overlap the first region and opaque portions that overlap the second region. To mitigate artifacts caused by high resistance of the transparent portions of the signal lines, the signal lines may include supplemental opaque portions that are electrically connected in parallel to the transparent portions and that are routed through the second region around the first region.Type: ApplicationFiled: May 17, 2024Publication date: January 2, 2025Inventors: Shyuan Yang, Abbas Jamshidi Roudbari, Gihoon Choo, Jae Won Choi, Jean-Pierre S. Guillou, Jonglo Park, Kyounghwan Kim, Ricardo A. Peterson, Sungki Lee, Ting-Kuo Chang, Tsung-Ting Tsai, Warren S. Rieutort-Louis, Yi Qiao, Yuchi Che, Yue Cui, Yue Jack Chu, Zhizhen Ma
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Patent number: 12185616Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The display may have both a full pixel density region and a pixel removal region with a plurality of high-transmittance areas that overlap the optical sensor. To mitigate reflectance mismatch between the full pixel density region and the pixel removal region, the pixel removal region may include a transition region at one or more edges. In the transition region, one or more components may have a gradual density change between the full pixel density region and a central portion of the pixel removal region. Components that may have a changing density in the transition region include dummy thin-film transistor sub-pixels, dummy anodes, a cathode layer, and a touch sensor metal layer. The transition region may also include anodes that gradually change shape and/or size.Type: GrantFiled: June 14, 2022Date of Patent: December 31, 2024Assignee: Apple Inc.Inventors: Ricardo A Peterson, Yuchi Che, Warren S Rieutort-Louis, Abbas Jamshidi Roudbari, Yi Qiao, Yue Cui, Jean-Pierre S Guillou, Shyuan Yang, Tsung-Ting Tsai
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Patent number: 12175907Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. To mitigate artifacts caused by a light emitter operating through a display, the display may have a higher density of thin-film transistor sub-pixels than emissive sub-pixels. This allows for a region in the display to include emissive sub-pixels but be free of thin-film transistor sub-pixels. The light emitter may operate through this region in the display. Additionally, to reduce the amount of space occupied in the inactive area of a display by gate driver circuitry, at least a portion of the gate driver circuitry may be positioned in the active area of the display. To accommodate the gate driver circuitry, emissive sub-pixels may be laterally shifted relative to corresponding thin-film transistor sub-pixels.Type: GrantFiled: September 28, 2023Date of Patent: December 24, 2024Assignee: Apple Inc.Inventors: Shyuan Yang, Cheng-Chih Hsieh, Jonathan H Beck, Yuchi Che, Tsung-Ting Tsai, Warren S Rieutort-Louis, Abbas Jamshidi Roudbari, Ting-Kuo Chang, Shih Chang Chang, Bhadrinarayana Lalgudi Visweswaran, Jae Won Choi, Kyounghwan Kim
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Patent number: 12156439Abstract: An organic light-emitting diode display may have thin-film transistor circuitry formed on a substrate. The display and substrate may have rounded corners. A pixel definition layer may be formed on the thin-film transistor circuitry. Openings in the pixel definition layer may be provided with emissive material overlapping respective anodes for organic light-emitting diodes. A cathode layer may cover the array of pixels. A ground power supply path may be used to distribute a ground voltage to the cathode layer. The ground power supply path may be formed from a metal layer that is shorted to the cathode layer using portions of a metal layer that forms anodes for the diodes, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, may include laser-deposited metal on the cathode layer, and may have other structures that facilitate distribution of the ground power supply.Type: GrantFiled: April 12, 2023Date of Patent: November 26, 2024Assignee: Apple Inc.Inventors: Chin-Wei Lin, Stephen S. Poon, Warren S. Rieutort-Louis, Cheng-Ho Yu, Choongho Lee, Doh-Hyoung Lee, Ting-Kuo Chang, Tsung-Ting Tsai, Vasudha Gupta, Younggu Lee
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Publication number: 20240381724Abstract: A display may have a stretchable portion with hermetically sealed rigid pixel islands. A flexible interconnect region may be interposed between the hermetically sealed rigid pixel islands. The hermetically sealed rigid pixel islands may include organic light-emitting diode (OLED) pixels. A conductive cutting structure may have an undercut that causes a discontinuity in a conductive OLED layer to mitigate lateral leakage. The conductive cutting structure may also be electrically connected to a cathode for the OLED pixels and provide a cathode voltage to the cathode. First and second inorganic passivation layers may be formed over the OLED pixels. Multiple discrete portions of an organic inkjet printed layer may be interposed between the first and second inorganic passivation layers.Type: ApplicationFiled: July 25, 2024Publication date: November 14, 2024Inventors: Prashant Mandlik, Bhadrinarayana Lalgudi Visweswaran, Xuesong Lu, Weixin Li, Wenbing Hu, Yuchi Che, Tsung-Ting Tsai, Gihoon Choo, Shyuan Yang, Kuan-Yi Lee, An-Di Sheu, Chi-Wei Chou, Chin-Fu Lee, An-Hong Shen, Ko-Wei Chen, Kyounghwan Kim, Jae Won Choi, Warren S. Rieutort-Louis, Sungki Lee
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Publication number: 20240332319Abstract: An electronic device may include a substrate, an array of display pixels formed on the substrate, first conductive contacts on the substrate, second conductive contacts on the substrate, a flexible printed circuit that is attached to the first conductive contacts, a display driver integrated circuit that is attached to the second conductive contacts, and conductive traces that electrically connect the first conductive contacts to the second conductive contacts. A dielectric layer may cover at least the sidewalls of the conductive traces to protect the conductive traces from damage by an etchant. Subsequently, some or all of the dielectric layer may be removed to prevent damage caused by moisture ingress into the cladding layer.Type: ApplicationFiled: March 21, 2024Publication date: October 3, 2024Inventors: Gihoon Choo, Abbas Jamshidi Roudbari, Guanxiong Liu, Jae Won Choi, Kyounghwan Kim, Shyuan Yang, Sungki Lee, Ting-Kuo Chang, Tsung-Ting Tsai, Wan-Ching Hsu, Warren S Rieutort-Louis, Yishan Liu, Zhe Hua
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Patent number: 12077419Abstract: A method and a system for controlling a handling machine, and a non-volatile computer readable recording medium are provided. The method includes: analyzing image data to obtain contour data corresponding to a target in the image data; analyzing the contour data to obtain feature data, where the feature data reflects the position of the target in the physical space; and generating control data based on the feature data, where the control data is adapted to control the handling machine to transport the target in response to the position of the target in the physical space.Type: GrantFiled: December 18, 2020Date of Patent: September 3, 2024Assignee: Industrial Technology Research InstituteInventors: Tsung-Ting Tsai, Carlos Andres Betancourt Baca, Yen-Chung Chang, Ching-Yi Liu
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Patent number: 12052891Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The electronic device may include a plurality of transparent windows that overlap the optical sensor. The resolution of the display panel may be reduced in some areas due to the presence of the transparent windows. To mitigate diffraction artifacts, a first sensor (13-1) may sense light through a first pixel removal region having transparent windows arranged according to a first pattern. A second sensor (13-2) may sense light through a second pixel removal region having transparent windows arranged according to a second pattern that is different than the first pattern. The first and second patterns of the transparent windows may result in the first and second sensors having different diffraction artifacts. Therefore, an image from the first sensor may be corrected for diffraction artifacts based on an image from the second sensor.Type: GrantFiled: July 7, 2021Date of Patent: July 30, 2024Assignee: Apple Inc.Inventors: Yuchi Che, Abbas Jamshidi Roudbari, Jean-Pierre S. Guillou, Majid Esfandyarpour, Sebastian Knitter, Warren S. Rieutort-Louis, Tsung-Ting Tsai
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Publication number: 20240210995Abstract: A display may have a stretchable portion with hermetically sealed rigid pixel islands. A flexible interconnect region may be interposed between the hermetically sealed rigid pixel islands. The hermetically sealed rigid pixel islands may include organic light-emitting diode (OLED) pixels. A conductive cutting structure may have an undercut that causes a discontinuity in a conductive OLED layer to mitigate lateral leakage. The conductive cutting structure may also be electrically connected to a cathode for the OLED pixels and provide a cathode voltage to the cathode. First and second inorganic passivation layers may be formed over the OLED pixels. Multiple discrete portions of an organic inkjet printed layer may be interposed between the first and second inorganic passivation layers.Type: ApplicationFiled: October 10, 2023Publication date: June 27, 2024Inventors: Prashant Mandlik, Bhadrinarayana Lalgudi Visweswaran, Mahendra Chhabra, Chia-Hao Chang, Shiyi Liu, Siddharth Harikrishna Mohan, Zhen Zhang, Han-Chieh Chang, Yi Qiao, Yue Cui, Tyler R Kakuda, Michael Vosgueritchian, Sudirukkuge T. Jinasundera, Warren S Rieutort-Louis, Tsung-Ting Tsai, Jae Won Choi, Jiun-Jye Chang, Jean-Pierre S Guillou, Rui Liu, Po-Chun Yeh, Chieh Hung Yang, Ankit Mahajan, Takahide Ishii, Pei-Ling Lin, Pei Yin, Gwanwoo Park, Markus Einzinger, Martijn Kuik, Abhijeet S Bagal, Kyounghwan Kim, Jonathan H Beck, Chiang-Jen Hsiao, Chih-Hao Kung, Chih-Lei Chen, Chih-Yu Chung, Chuan-Jung Lin, Jung Yen Huang, Kuan-Chi Chen, Shinya Ono, Wei Jung Hsieh, Wei-Chieh Lin, Yi-Pu Chen, Yuan Ming Chiang, An-Di Sheu, Chi-Wei Chou, Chin-Fu Lee, Ko-Wei Chen, Kuan-Yi Lee, Weixin Li, Shin-Hung Yeh, Shyuan Yang, Themistoklis Afentakis, Asli Sirman, Baolin Tian, Han Liu
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Patent number: 12019835Abstract: Visibility of the metal mesh touch electrodes can be mitigated using one or more mitigation techniques. In some examples, the boundary between touch electrodes and/or the boundary between a touch electrode and a routing trace of another touch electrode and/or the boundary between two routing traces can be non-linear. In some examples, dummy cuts can be made within an area of a touch electrode region (e.g., while maintaining the same electrical potential for the touch electrode region). In some examples, notches can be made in the metal mesh. In some examples, the location of cuts and/or notches can be optimized to mitigate visibility of the metal mesh. In some examples, some or all of the visibility mitigations may be used in combination in a touch screen.Type: GrantFiled: June 15, 2022Date of Patent: June 25, 2024Assignee: Apple Inc.Inventors: Tiffany Tang Moy, Tsung-Ting Tsai, Warren S. A. Rieutort-Louis, Aleksandr N. Polyakov, Chuang Qian, Sabino Joseph Pietrangelo, II, Abbas Jamshidi-Roudbari, Rui Liu, Yurii Morozov
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Publication number: 20240194106Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. To mitigate artifacts caused by a light emitter operating through a display, the display may have a higher density of thin-film transistor sub-pixels than emissive sub-pixels. This allows for a region in the display to include emissive sub-pixels but be free of thin-film transistor sub-pixels. The light emitter may operate through this region in the display. Additionally, to reduce the amount of space occupied in the inactive area of a display by gate driver circuitry, at least a portion of the gate driver circuitry may be positioned in the active area of the display. To accommodate the gate driver circuitry, emissive sub-pixels may be laterally shifted relative to corresponding thin-film transistor sub-pixels.Type: ApplicationFiled: September 28, 2023Publication date: June 13, 2024Inventors: Shyuan Yang, Cheng-Chih Hsieh, Jonathan H. Beck, Yuchi Che, Tsung-Ting Tsai, Warren S. Rieutort-Louis, Abbas Jamshidi Roudbari, Ting-Kuo Chang, Shih Chang Chang, Bhadrinarayana Lalgudi Visweswaran, Jae Won Choi, Kyounghwan Kim
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Publication number: 20240128274Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.Type: ApplicationFiled: December 8, 2023Publication date: April 18, 2024Inventors: Vasudha Gupta, Jae Won Choi, Shih Chang Chang, Tsung-Ting Tsai, Young Bae Park
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Publication number: 20240099086Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.Type: ApplicationFiled: November 17, 2023Publication date: March 21, 2024Inventors: Cheng-Ho Yu, Chin-Wei Lin, Shyuan Yang, Ting-Kuo Chang, Tsung-Ting Tsai, Warren S. Rieutort-Louis, Shih-Chang Chang, Yu Cheng Chen, John Z. Zhong
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Publication number: 20240065057Abstract: A display may include pixels arranged in rows and columns in an active area and display driver circuitry in an inactive area. Data lines for the pixels may be positioned in the active area. Fanout lines may be routed through the active area. Each fanout line may electrically connect the display driver circuitry to a respective data line. One or more pixels may include a drive transistor and a light-emitting diode that are connected in series between a first power supply terminal and a second power supply terminal. A conductive layer may form a first terminal (such as the source terminal, the gate terminal, or the drain terminal) for the drive transistor. A conductive shielding layer may be interposed between the conductive layer and a fanout line to mitigate capacitive coupling between the terminal of the drive transistor and the fanout line.Type: ApplicationFiled: June 2, 2023Publication date: February 22, 2024Inventors: Shin-Hung Yeh, Abbas Jamshidi Roudbari, Chien-Ya Lee, I-Cheng Shih, Shyuan Yang, Tsung-Ting Tsai
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Patent number: 11895883Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.Type: GrantFiled: October 28, 2021Date of Patent: February 6, 2024Assignee: Apple Inc.Inventors: Cheng-Ho Yu, Chin-Wei Lin, Shyuan Yang, Ting-Kuo Chang, Tsung-Ting Tsai, Warren S. Rieutort-Louis, Shih-Chang Chang, Yu Cheng Chen, John Z. Zhong
