Patents by Inventor Ching-Sang Chuang
Ching-Sang Chuang 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).
-
Patent number: 11910654Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk, the display may include active and/or passive leakage-mitigating structures. The passive leakage-mitigating structures may have an undercut that causes discontinuities in the overlying OLED layers. Active leakage-mitigating structures may include a conductive layer (e.g., a conductive ring) that drains leakage current to ground. Alternatively, the active leakage-mitigating structures may include a gate electrode modulator with a variable voltage that stops the current flow laterally.Type: GrantFiled: August 5, 2021Date of Patent: February 20, 2024Assignee: Apple Inc.Inventors: Po-Chun Yeh, Jiun-Jye Chang, Doh-Hyoung Lee, Caleb Coburn, Niva A. Ran, Ching-Sang Chuang, Themistoklis Afentakis, Chuan-Jung Lin, Jung Yen Huang, Lei Yuan
-
Patent number: 11762490Abstract: An electronic device may have a display with an active area configured to display images and an inactive area that is free of pixels and that does not display images. Touch sensor sense lines may have portions located in the active area and portions located in the inactive area. The active and inactive areas may be characterized by respective reflectivity values. To match the reflectivities of the active and inactive areas and thereby avoid undesired visually distinguishable differences in the appearances of these areas, the touch sensor circuitry in the inactive areas may be configured to match the reflectivity values of the active and inactive areas. Sense line portions in the inactive area may have metal traces of enhanced reflectivity and/or uneven surface topology to enhance ambient light reflections through a circular polarizer that overlaps the active and inactive areas.Type: GrantFiled: August 20, 2021Date of Patent: September 19, 2023Assignee: Apple Inc.Inventors: Kyounghwan Kim, Abbas Jamshidi Roudbari, Chia-Hsiang Chen, Chien-Ya Lee, Ching-Sang Chuang, Jae Won Choi, Jonathan H. Beck, Ming E. Tai, Warren S. Rieutort-Louis, Wen-I Hsieh, Yuchi Che
-
Publication number: 20220181418Abstract: A display may include an array of pixels. Each pixel in the array includes an organic light-emitting diode coupled to associated semiconducting oxide transistors. The semiconducting oxide transistors may exhibit different device characteristics. Some of the semiconducting oxide transistors may be formed using a first oxide layer formed from a first semiconducting oxide material using first processing steps, whereas other semiconducting oxide transistors are formed using a second oxide layer formed from a second semiconducting oxide material using second processing steps different than the first processing steps. The display may include three or more different semiconducting oxide layers formed during different processing steps.Type: ApplicationFiled: October 18, 2021Publication date: June 9, 2022Inventors: Jung Yen Huang, Shinya Ono, Chin-Wei Lin, Akira Matsudaira, Cheng Min Hu, Chih Pang Chang, Ching-Sang Chuang, Gihoon Choo, Jiun-Jye Chang, Po-Chun Yeh, Shih Chang Chang, Yu-Wen Liu, Zino Lee
-
Patent number: 11121263Abstract: Display panels with hydrogen trap layers are described. The hydrogen trap layers may be incorporated into a variety of locations to getter or block hydrogen diffusion into the semiconductor oxide layer of an oxide transistor.Type: GrantFiled: January 17, 2020Date of Patent: September 14, 2021Assignee: Apple Inc.Inventors: Jehun Lee, Ching-Sang Chuang, Hirokazu Yamagata, Jiun-Jye Chang, Kenny Kim, Po-Chun Yeh, Shih Chang Chang, Ting-Kuo Chang
-
Patent number: 11004391Abstract: An electronic device includes an electronic display having an active area comprising a pixel. The electronic device also includes processing circuitry configured to receive image data and predict a change in threshold voltage associated with a transistor of the pixel based at least in part on the image data. Furthermore, the processing circuitry is configured to adjust the image data to generate adjusted image data based at least in part on the predicted change in threshold voltage.Type: GrantFiled: May 7, 2020Date of Patent: May 11, 2021Assignee: Apple Inc.Inventors: Hei Kam, Junhua Tan, Wei H. Yao, Shihchang Chang, Derek K. Shaeffer, Chaohao Wang, Hyunwoo Nho, Yun Wang, Baris Cagdaser, Majid Gharghi, Yongjun Li, Aida Raquel Colon-Berrios, Mohammad Reza Esmaeili Rad, Hyunsoo Kim, Alex H. Pai, Hsin-Ying Chiu, Jiun-Jye Chang, Ching-Sang Chuang, Xin Lin
-
Publication number: 20210066505Abstract: Display panels with hydrogen trap layers are described. The hydrogen trap layers may be incorporated into a variety of locations to getter or block hydrogen diffusion into the semiconductor oxide layer of an oxide transistor.Type: ApplicationFiled: January 17, 2020Publication date: March 4, 2021Inventors: Jehun Lee, Ching-Sang Chuang, Hirokazu Yamagata, Jiun-Jye Chang, Kenny Kim, Po-Chun Yeh, Shih Chang Chang, Ting-Kuo Chang
-
Publication number: 20210050385Abstract: An electronic device includes a stack, and the stack includes a substrate, and a multi-layer structure deposited on the substrate and including a set of TFTs. The electronic device further includes a photodetector attached to the multi-layer structure and including an organic photosensitive material. The organic photosensitive material is electrically connected to a TFT in the set of TFTs. Another electronic device includes a stack, and the stack includes a substrate, and a multi-layer structure deposited on the substrate. The multi-layer structure includes a first set of layers including a set of TFTs, and a second set of layers including a PIN diode. The PIN diode is configured to operate as a photodetector and receive at least one wavelength of electromagnetic radiation, and is electrically connected to a TFT in the set of TFTs.Type: ApplicationFiled: July 31, 2020Publication date: February 18, 2021Inventors: Ching-Sang Chuang, Jiun-Jye Chang, Po-Chun Yeh, Shih Chang Chang, Ting-Kuo Chang, Yun Wang
-
Publication number: 20200388215Abstract: An electronic device includes an electronic display having an active area comprising a pixel. The electronic device also includes processing circuitry configured to receive image data and predict a change in threshold voltage associated with a transistor of the pixel based at least in part on the image data. Furthermore, the processing circuitry is configured to adjust the image data to generate adjusted image data based at least in part on the predicted change in threshold voltage.Type: ApplicationFiled: May 7, 2020Publication date: December 10, 2020Inventors: Hei Kam, Junhua Tan, Wei H. Yao, Shihchang Chang, Derek K. Shaeffer, Chaohao Wang, Hyunwoo Nho, Yun Wang, Baris Cagdaser, Majid Gharghi, Yongjun Li, Aida Raquel Colon-Berrios, Mohammad Reza Esmaeili Rad, Hyunsoo Kim, Alex H. Pai, Hsin-Ying Chiu, Jiun-Jye Chang, Ching-Sang Chuang, Xin Lin
-
Patent number: 10249695Abstract: 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, that include hybrid thin-film transistor structures formed using semiconducting-oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. A drive transistor in the display pixel may be a top-gate semiconducting-oxide thin-film transistor and a switching transistor in the display pixel may be a top-gate silicon thin-film transistor. A storage capacitor in the display may include a conductive semiconducting-oxide electrode.Type: GrantFiled: October 10, 2017Date of Patent: April 2, 2019Assignee: Apple Inc.Inventors: Shinya Ono, Chin-Wei Lin, Ching-Sang Chuang, Jiun-Jye Chang, Keisuke Omoto, Shang-Chih Lin, Ting-Kuo Chang, Takahide Ishii
-
Patent number: 10224238Abstract: A component such as a display may have a substrate and thin-film circuitry on the substrate. The thin-film circuitry may be used to form an array of pixels for a display or other circuit structures. Metal traces may be formed among dielectric layers in the thin-film circuitry. Metal traces may be provided with insulating protective sidewall structures. The protective sidewall structures may be formed by treating exposed edge surfaces of the metal traces. A metal trace may have multiple layers such as a core metal layer sandwiched between barrier metal layers. The core metal layer may be formed from a metal that is subject to corrosion. The protective sidewall structures may help prevent corrosion in the core metal layer. Surface treatments such as oxidation, nitridation, and other processes may be used in forming the protective sidewall structures.Type: GrantFiled: September 16, 2016Date of Patent: March 5, 2019Assignee: Apple Inc.Inventors: Chang Ming Lu, Chia-Yu Chen, Chih Pang Chang, Ching-Sang Chuang, Hung-Che Ting, Jung Yen Huang, Sheng Hui Shen, Shih Chang Chang, Tsung-Hsiang Shih, Yu-Wen Liu, Yu Hung Chen, Kai-Chieh Wu, Lun Tsai, Takahide Ishii, Chung-Wang Lee, Hsing-Chuan Wang, Chin Wei Hsu, Fu-Yu Teng
-
Publication number: 20180277614Abstract: 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, that include hybrid thin-film transistor structures formed using semiconducting-oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. A drive transistor in the display pixel may be a top-gate semiconducting-oxide thin-film transistor and a switching transistor in the display pixel may be a top-gate silicon thin-film transistor. A storage capacitor in the display may include a conductive semiconducting-oxide electrode.Type: ApplicationFiled: October 10, 2017Publication date: September 27, 2018Inventors: Shinya Ono, Chin-Wei Lin, Ching-Sang Chuang, Jiun-Jye Chang, Keisuke Omoto, Shang-Chih Lin, Ting-Kuo Chang, Takahide Ishii
-
Publication number: 20180061867Abstract: Hybrid silicon TFT and oxide TFT structures and methods of formation are described. In an embodiment, a protection layer is formed over a semiconductor oxide channel layer of the oxide TFT to protect the semiconductor oxide channel layer during a cleaning operation of the silicon TFT.Type: ApplicationFiled: November 4, 2016Publication date: March 1, 2018Inventors: Chih Pang Chang, Jung-Fang Chang, ChinWei Hu, Te-Hua Teng, Jung Yen Huang, Wen-I Hsieh, Jiun-Jye Chang, Ching-Sang Chuang, Hung-Che Ting, Lungpao Hsin
-
Publication number: 20170294499Abstract: A component such as a display may have a substrate and thin-film circuitry on the substrate. The thin-film circuitry may be used to form an array of pixels for a display or other circuit structures. Metal traces may be formed among dielectric layers in the thin-film circuitry. Metal traces may be provided with insulating protective sidewall structures. The protective sidewall structures may be formed by treating exposed edge surfaces of the metal traces. A metal trace may have multiple layers such as a core metal layer sandwiched between barrier metal layers. The core metal layer may be formed from a metal that is subject to corrosion. The protective sidewall structures may help prevent corrosion in the core metal layer. Surface treatments such as oxidation, nitridation, and other processes may be used in forming the protective sidewall structures.Type: ApplicationFiled: September 16, 2016Publication date: October 12, 2017Inventors: Chang Ming Lu, Chia-Yu Chen, Chih Pang Chang, Ching-Sang Chuang, Hung-Che Ting, Jung Yen Huang, Sheng Hui Shen, Shih Chang Chang, Tsung-Hsiang Shih, Yu-Wen Liu, Yu Hung Chen, Kai-Chieh Wu, Lun Tsai, Takahide Ishii, Chung-Wang Lee, Hsing-Chuan Wang, Chin Wei Hsu, Fu-Yu Teng
-
Patent number: 9716134Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line.Type: GrantFiled: May 9, 2016Date of Patent: July 25, 2017Inventors: Chin-Wei Lin, Shih Chang Chang, Ching-Sang Chuang
-
Patent number: 9679956Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line.Type: GrantFiled: May 9, 2016Date of Patent: June 13, 2017Inventors: Chin-Wei Lin, Shih Chang Chang, Ching-Sang Chuang
-
Publication number: 20160254338Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line.Type: ApplicationFiled: May 9, 2016Publication date: September 1, 2016Inventors: Chin-Wei Lin, Shih Chang Chang, Ching-Sang Chuang
-
Patent number: 8883574Abstract: This invention provides a transistor with an etching stop layer and a manufacturing method thereof. The transistor structure includes a substrate, a crystalline semiconductor layer, an etching stop structure, an ohmic contact layer, a source, a drain, a gate insulating layer, and a gate. The manufacturing method is performed by patterning the ohmic contact layer and the crystalline semiconductor layer at the same time with the same mask; and patterning the ohmic contact layer and the source/drain layer at the same time with another the same mask.Type: GrantFiled: March 11, 2013Date of Patent: November 11, 2014Assignee: Au Optronics CorporationInventors: Chin-Wei Hu, Ching-Sang Chuang, Chia-Yu Chen
-
Patent number: 8597968Abstract: An active device array substrate is provided. First, a substrate having a display area and a sensing area is provided. Then, a first patterned conductor layer is disposed on the display area of the substrate. A gate insulator is disposed on the substrate. A patterned semiconductor layer, a second patterned conductor layer and a patterned photosensitive dielectric layer are disposed on the gate insulator, wherein the second patterned conductor layer includes a source electrode, a drain electrode and a lower electrode, the patterned photosensitive dielectric layer covering the second patterned conductor layer includes an interface protection layer disposed on the source electrode and the drain electrode and a photo-sensing layer disposed on the lower electrode. A passivation layer is then disposed on the substrate. After that, a third patterned conductor layer including a pixel electrode and an upper electrode is disposed on the passivation layer.Type: GrantFiled: January 19, 2012Date of Patent: December 3, 2013Assignee: Au Optronics CorporationInventors: Yu-Cheng Chen, Chen-Yueh Li, Ching-Sang Chuang, Ching-Chieh Shih, An-Thung Cho
-
Patent number: 8541750Abstract: A structure of X-ray detector includes a Si-rich dielectric material for serving as a photo-sensing layer to increase light sensitivity. The fabrication method of the X-ray detector including the Si-rich dielectric material needs less photolithography-etching processes, so as to reduce the total thickness of thin film layers and decrease process steps and cost.Type: GrantFiled: September 3, 2009Date of Patent: September 24, 2013Assignee: AU Optronics Corp.Inventors: Yu-Cheng Chen, An-Thung Cho, Ching-Sang Chuang, Chia-Tien Peng
-
Patent number: RE49166Abstract: 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, that include hybrid thin-film transistor structures formed using semiconducting-oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. A drive transistor in the display pixel may be a top-gate semiconducting-oxide thin-film transistor and a switching transistor in the display pixel may be a top-gate silicon thin-film transistor. A storage capacitor in the display may include a conductive semiconducting-oxide electrode.Type: GrantFiled: April 10, 2020Date of Patent: August 9, 2022Assignee: Apple Inc.Inventors: Shinya Ono, Chin-Wei Lin, Ching-Sang Chuang, Jiun-Jye Chang, Keisuke Omoto, Shang-Chih Lin, Ting-Kuo Chang, Takahide Ishii