Patents by Inventor Chih-Lei Chen
Chih-Lei Chen 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: 20230080552Abstract: An organic light-emitting diode (OLED) display may have an array of pixels that each have OLED layers interposed between a cathode and an anode. The display may also include a planarization layer that is deposited using inkjet printing. To mitigate the need for dam structures to prevent overflow of the planarization layer during inkjet printing, capillary-flow-inducing structures may be included in the inactive area of the display. The topology of the capillary-flow-inducing structures may be propagated to a passivation layer such that an upper surface of the passivation layer has a similar topology as the capillary-flow-inducing structures. The planarization layer therefore undergoes capillary flow when deposited on the upper surface of the passivation layer. The capillary-flow-inducing structures may be formed from dots, rectangular strips, or trapezoidal strips. The capillary-flow-inducing structures may be formed from the same material as spacers in the active area or using another layer in the display.Type: ApplicationFiled: May 27, 2022Publication date: March 16, 2023Inventors: Kuan-Yi Lee, Takahide Ishii, Prashant Mandlik, Chih-Lei Chen, Bhadrinarayana Lalgudi Visweswaran, Ankit Mahajan
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Patent number: 10658441Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material. The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.Type: GrantFiled: August 27, 2018Date of Patent: May 19, 2020Assignee: Apple Inc.Inventors: Kwang Ohk Cheon, Cheng Chen, Chien Lu, Chih-Lei Chen, Chin Wei Hsu, Hui Lu, KiBeom Kim, Lun Tsai, Meng-Huan Ho, Nai-Chih Kao, Pei-Ling Lin, Rui Liu, Shan-Jen Yu, Wendi Chang, Yusuke Fujino
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Patent number: 10546796Abstract: Micro LED and microdriver chip integration schemes are described. In an embodiment a microdriver chip includes a plurality of trenches formed in a bottom surface of the microdriver chip, with each trench surrounding a conductive stud extending below a bottom surface of the microdriver chip body. Integration schemes are additionally described for providing electrical connection to conductive terminal contacts and micro LEDs bonded to a display substrate and adjacent to a microdriver chip.Type: GrantFiled: February 10, 2017Date of Patent: January 28, 2020Assignee: Apple Inc.Inventors: Hsin-Hua Hu, Jaein Choi, James E. Pedder, Ion Bita, Hairong Tang, Chin Wei Hsu, Sandeep Chalasani, Chih-Lei Chen, Sunggu Kang, Shinya Ono, Jung Yen Huang, Lun Tsai
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Publication number: 20190115274Abstract: Micro LED and microdriver chip integration schemes are described. In an embodiment a microdriver chip includes a plurality of trenches formed in a bottom surface of the microdriver chip, with each trench surrounding a conductive stud extending below a bottom surface of the microdriver chip body. Integration schemes are additionally described for providing electrical connection to conductive terminal contacts and micro LEDs bonded to a display substrate and adjacent to a microdriver chip.Type: ApplicationFiled: February 10, 2017Publication date: April 18, 2019Applicant: Apple Inc.Inventors: Hsin-Hua Hu, Jaein Choi, James E. Pedder, Ion Bita, Hairong Tang, Chin Wei Hsu, Sandeep Chalasani, Chih-Lei Chen, Sunggu Kang, Shinya Ono, Jung Yen Huang, Lun Tsai
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Publication number: 20190067394Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material, The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.Type: ApplicationFiled: August 27, 2018Publication date: February 28, 2019Inventors: Kwang Ohk Cheon, Cheng Chen, Chien Lu, Chih-Lei Chen, Chin Wei Hsu, Hui Lu, KiBeom Kim, Lun Tsai, Meng-Huan Ho, Nai-Chih Kao, Pei-Ling Lin, Rui Liu, Shan-Jen Yu, Wendi Chang, Yusuke Fujino
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Publication number: 20150236073Abstract: A fabricating method of an organic light emitting device is provided. First to fourth lower pixel electrodes are respectively formed in first to fourth pixel regions of a substrate. By ink-jet printing processes, an interlayer is formed on the first to fourth lower pixel electrodes, and first to third color patterns are respectively formed on the interlayer in the first to third pixel regions. A fourth color layer is formed to cover the first to third color patterns and the interlayer in the fourth pixel region. Colors of the first to third color patterns and the fourth color layer are different. An upper pixel electrode is formed on the fourth color layer. A color filter arranging over the upper pixel electrode filters out a first color light, a second color light, light of third and fourth colors, and the fourth color light corresponding to the first to fourth pixel regions.Type: ApplicationFiled: May 22, 2014Publication date: August 20, 2015Applicant: Au Optronics CorporationInventors: Chih-Lei Chen, Sheng-Yang Huang
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Patent number: 9111882Abstract: A fabricating method of an organic light emitting device is provided. First to fourth lower pixel electrodes are respectively formed in first to fourth pixel regions of a substrate. By ink-jet printing processes, an interlayer is formed on the first to fourth lower pixel electrodes, and first to third color patterns are respectively formed on the interlayer in the first to third pixel regions. A fourth color layer is formed to cover the first to third color patterns and the interlayer in the fourth pixel region. Colors of the first to third color patterns and the fourth color layer are different. An upper pixel electrode is formed on the fourth color layer. A color filter arranging over the upper pixel electrode filters out a first color light, a second color light, light of third and fourth colors, and the fourth color light corresponding to the first to fourth pixel regions.Type: GrantFiled: May 22, 2014Date of Patent: August 18, 2015Assignee: Au Optronics CorporationInventors: Chih-Lei Chen, Sheng-Yang Huang
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Patent number: 8766288Abstract: A display panel includes a substrate, a plurality of bottom electrodes, an isolation layer, a plurality of light emitting layers, a top electrode, and at least one first auxiliary electrode. The bottom electrodes and the isolation layer are disposed on the substrate. The isolation layer has a plurality of pixel region openings and at least one buffer region. Each of the pixel region openings respectively exposes the corresponding bottom electrode. The buffer region is disposed between two adjacent pixel region openings. The light emitting layers are respectively disposed on the corresponding bottom electrodes. The top electrode covers the light emitting layers, the isolation layer, and the buffer region. The first auxiliary electrode is disposed in the buffer region.Type: GrantFiled: April 2, 2012Date of Patent: July 1, 2014Assignee: AU Optronics Corp.Inventors: Peng-Yu Chen, Lun Tsai, Chih-Lei Chen, Shu-Yu Chou
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Publication number: 20130134449Abstract: A display panel includes a substrate, a plurality of bottom electrodes, an isolation layer, a plurality of light emitting layers, a top electrode, and at least one first auxiliary electrode. The bottom electrodes and the isolation layer are disposed on the substrate. The isolation layer has a plurality of pixel region openings and at least one buffer region. Each of the pixel region openings respectively exposes the corresponding bottom electrode. The buffer region is disposed between two adjacent pixel region openings. The light emitting layers are respectively disposed on the corresponding bottom electrodes. The top electrode covers the light emitting layers, the isolation layer, and the buffer region. The first auxiliary electrode is disposed in the buffer region.Type: ApplicationFiled: April 2, 2012Publication date: May 30, 2013Inventors: Peng-Yu Chen, Lun Tsai, Chih-Lei Chen, Shu-Yu Chou