Patents by Inventor Chieh-Wei Chen
Chieh-Wei 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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Patent number: 10700151Abstract: An organic light-emitting diode display may have an array of pixels. The pixels may each have an organic light-emitting diode with a respective anode and may be formed from thin-film transistor circuitry formed on a substrate. A mesh-shaped path may be used to distribute a power supply voltage to the thin-film circuitry. The mesh-shaped path may have intersecting horizontally extending lines and vertically extending lines. The horizontally extending lines may be zigzag metal lines that do not overlap the anodes. The vertically extending lines may be straight vertical metal lines that overlap the anodes. The pixels may include pixels of different colors. Angularly dependent shifts in display color may be minimized by ensuring that the anodes of the differently colored pixels overlap the vertically extending lines by similar amounts.Type: GrantFiled: January 4, 2019Date of Patent: June 30, 2020Assignee: Apple Inc.Inventors: Warren S. Rieutort-Louis, Ting-Kuo Chang, Chieh-Wei Chen, Cheng-Ho Yu
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Patent number: 10672320Abstract: A display device may include a processor that may receive image data, such that the image data may include gray level data and display brightness value (DBV) data for a first pixel of a display. The processor may then determine a gain compensation factor associated with the first pixel based on a correction spatial map, a brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may then determine an offset compensation factor associated with the first pixel based on the correction spatial map, the brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may generate compensated gray level data by applying the gain compensation factor and the offset compensation factor to the gray level data and transmit the compensated gray level data to pixel driving circuitry associated with the first pixel.Type: GrantFiled: September 14, 2018Date of Patent: June 2, 2020Assignee: Apple Inc.Inventors: Hung Sheng Lin, Soojin Park, Bhadrinarayana L. Visweswaran, Chieh-Wei Chen, Anshi Liang, Marc Albrecht, Pierre-Yves Emelie, Sean C. Chang, Hyunwoo Nho, Mohammad Hajirostam, Myung-Je Cho, Shengkui Gao, Wei H. Yao, Yafei Bi
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Publication number: 20200099012Abstract: Display panel stack-up structures are described. In an embodiment, a display panel includes a substrate, a light source, and a multiple layer thin film encapsulation over the light source. In an embodiment, the display panel additionally includes an anti-reflection layer over the light source. In an embodiment, an incoherence layer is located within the thin film encapsulation.Type: ApplicationFiled: June 21, 2019Publication date: March 26, 2020Inventors: Yifan Zhang, Amin Salehi, Yun Liu, Paul S. Drzaic, Tae-Wook Koh, Chih Jen Yang, Bhadrinarayana Lalgudi Visweswaran, Chieh-Wei Chen
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Patent number: 10535840Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have a reflective electrode such as a metal anode and a partially reflective electrode such as a metal cathode. Emissive material may be formed between the electrodes. The electrodes of each organic light-emitting diode may form an optical cavity. A wrinkled layer may be formed over the optical cavity to reduce sensitivity to process variations associated with forming encapsulation structures for the display. The wrinkled layer may include annealed organic layers. The organic layers may wrinkle during an annealing process at an annealing temperature. The annealed organic layers may include a first organic layer with a glass transition temperature below the annealing temperature and a second organic layer with a glass transition temperature above the annealing temperature.Type: GrantFiled: October 22, 2018Date of Patent: January 14, 2020Assignee: Apple Inc.Inventors: Chieh-Wei Chen, Ting-Yi Cho
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Patent number: 10453388Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements and an ambient light sensor. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history, ambient light exposure, and temperature measurements.Type: GrantFiled: April 30, 2018Date of Patent: October 22, 2019Assignee: Apple Inc.Inventors: Jiye Lee, Yifan Zhang, Chieh-Wei Chen, Tae-Wook Koh, Hongwei Chang, Paul S. Drzaic
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Publication number: 20190237701Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have a reflective electrode such as a metal anode and a partially reflective electrode such as a metal cathode. Emissive material may be formed between the electrodes. The electrodes of each organic light-emitting diode may form an optical cavity. A wrinkled layer may be formed over the optical cavity to reduce sensitivity to process variations associated with forming encapsulation structures for the display. The wrinkled layer may include annealed organic layers. The organic layers may wrinkle during an annealing process at an annealing temperature. The annealed organic layers may include a first organic layer with a glass transition temperature below the annealing temperature and a second organic layer with a glass transition temperature above the annealing temperature.Type: ApplicationFiled: October 22, 2018Publication date: August 1, 2019Inventors: Chieh-Wei Chen, Ting-Yi Cho
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Publication number: 20190237001Abstract: A display device may include a processor that may receive image data, such that the image data may include gray level data and display brightness value (DBV) data for a first pixel of a display. The processor may then determine a gain compensation factor associated with the first pixel based on a correction spatial map, a brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may then determine an offset compensation factor associated with the first pixel based on the correction spatial map, the brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may generate compensated gray level data by applying the gain compensation factor and the offset compensation factor to the gray level data and transmit the compensated gray level data to pixel driving circuitry associated with the first pixel.Type: ApplicationFiled: September 14, 2018Publication date: August 1, 2019Inventors: Hung Sheng Lin, Soojin Park, Bhadrinarayana L. Visweswaran, Chieh-Wei Chen, Anshi Liang, Marc Albrecht, Pierre-Yves Emelie, Sean C. Chang, Hyunwoo Nho, Mohammad Hajirostam, Myung-Je Cho, Shengkui Gao, Wei H. Yao, Yafei Bi
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Publication number: 20190189732Abstract: An organic light-emitting diode display may have an array of pixels. The pixels may each have an organic light-emitting diode with a respective anode and may be formed from thin-film transistor circuitry formed on a substrate. A mesh-shaped path may be used to distribute a power supply voltage to the thin-film circuitry. The mesh-shaped path may have intersecting horizontally extending lines and vertically extending lines. The horizontally extending lines may be zigzag metal lines that do not overlap the anodes. The vertically extending lines may be straight vertical metal lines that overlap the anodes. The pixels may include pixels of different colors. Angularly dependent shifts in display color may be minimized by ensuring that the anodes of the differently colored pixels overlap the vertically extending lines by similar amounts.Type: ApplicationFiled: January 4, 2019Publication date: June 20, 2019Inventors: Warren S. Rieutort-Louis, Ting-Kuo Chang, Chieh-Wei Chen, Cheng-Ho Yu
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Patent number: 10224386Abstract: An organic light-emitting diode display may have an array of pixels. The pixels may each have an organic light-emitting diode with a respective anode and may be formed from thin-film transistor circuitry formed on a substrate. A mesh-shaped path may be used to distribute a power supply voltage to the thin-film circuitry. The mesh-shaped path may have intersecting horizontally extending lines and vertically extending lines. The horizontally extending lines may be zigzag metal lines that do not overlap the anodes. The vertically extending lines may be straight vertical metal lines that overlap the anodes. The pixels may include pixels of different colors. Angularly dependent shifts in display color may be minimized by ensuring that the anodes of the differently colored pixels overlap the vertically extending lines by similar amounts.Type: GrantFiled: December 6, 2016Date of Patent: March 5, 2019Assignee: Apple Inc.Inventors: Warren S. Rieutort-Louis, Ting-Kuo Chang, Chieh-Wei Chen, Cheng-Ho Yu
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Patent number: 10163388Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history and temperature measurements.Type: GrantFiled: November 9, 2015Date of Patent: December 25, 2018Assignee: Apple Inc.Inventors: Yifan Zhang, Paul S. Drzaic, Chieh-Wei Chen, Jean-Pierre S. Guillou, Koorosh Aflatooni
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Publication number: 20180247588Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements and an ambient light sensor. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history, ambient light exposure, and temperature measurements.Type: ApplicationFiled: April 30, 2018Publication date: August 30, 2018Inventors: Jiye Lee, Yifan Zhang, Chieh-Wei Chen, Tae-Wook Koh, Hongwei Chang, Paul S. Drzaic
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Publication number: 20180090553Abstract: An organic light-emitting diode display may have an array of pixels. The pixels may each have an organic light-emitting diode with a respective anode and may be formed from thin-film transistor circuitry formed on a substrate. A mesh-shaped path may be used to distribute a power supply voltage to the thin-film circuitry. The mesh-shaped path may have intersecting horizontally extending lines and vertically extending lines. The horizontally extending lines may be zigzag metal lines that do not overlap the anodes. The vertically extending lines may be straight vertical metal lines that overlap the anodes. The pixels may include pixels of different colors. Angularly dependent shifts in display color may be minimized by ensuring that the anodes of the differently colored pixels overlap the vertically extending lines by similar amounts.Type: ApplicationFiled: December 6, 2016Publication date: March 29, 2018Inventors: Warren S. Rieutort-Louis, Ting-Kuo Chang, Chieh-Wei Chen, Cheng-Ho Yu
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Patent number: 9799713Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. A planarization layer may be interposed between the thin-film transistor circuitry and the organic light-emitting diodes. To protect the organic light-emitting diodes from photoactive compounds that may be outgassed from the planarization layer, an inorganic barrier layer may be interposed between the planarization layer and the organic light-emitting diodes. The inorganic barrier layer may be formed on top of and/or below a pixel definition layer that defines light-emitting zones for the organic light-emitting diodes. In another suitable arrangement, the inorganic barrier layer may itself define light-emitting zones and may be used in place of a polymer-based pixel definition layer. The inorganic barrier layer may include trenches in which the emissive material of the light-emitting diodes is formed.Type: GrantFiled: May 31, 2016Date of Patent: October 24, 2017Assignee: Apple Inc.Inventors: Jae Won Choi, Shih Chang Chang, Young Bae Park, ZhiFeng Zhan, Chieh-Wei Chen, Tsung-Ting Tsai, Chin-Wei Lin, Paul S. Drzaic
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Publication number: 20170076659Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history and temperature measurements.Type: ApplicationFiled: November 9, 2015Publication date: March 16, 2017Inventors: Yifan Zhang, Paul S. Drzaic, Chieh-Wei Chen, Jean-Pierre S. Guillou, Koorosh Aflatooni
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Publication number: 20170025489Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. A planarization layer may be interposed between the thin-film transistor circuitry and the organic light-emitting diodes. To protect the organic light-emitting diodes from photoactive compounds that may be outgassed from the planarization layer, an inorganic barrier layer may be interposed between the planarization layer and the organic light-emitting diodes. The inorganic barrier layer may be formed on top of and/or below a pixel definition layer that defines light-emitting zones for the organic light-emitting diodes. In another suitable arrangement, the inorganic barrier layer may itself define light-emitting zones and may be used in place of a polymer-based pixel definition layer. The inorganic barrier layer may include trenches in which the emissive material of the light-emitting diodes is formed.Type: ApplicationFiled: May 31, 2016Publication date: January 26, 2017Inventors: Jae Won Choi, Shih Chang Chang, Young Bae Park, ZhiFeng Zhan, Chieh-Wei Chen, Tsung-Ting Tsai, Chin-Wei Lin, Paul S. Drzaic
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Patent number: 9419065Abstract: An electronic device may be provided with an organic light-emitting diode display with minimized border regions. The border regions may be minimized by providing the display with bent edge portions having neutral plane adjustment features that facilitate bending of the bent edge portions while minimizing damage to the bent edge portions. The neutral plane adjustment features may include a modified backfilm layer of the display in which portions of the backfilm layer are removed in a bend region. A display device may include a substrate, a display panel on the substrate having display pixels, and peripheral circuitry proximate the display panel and configured to drive the display pixels. A portion of the periphery of the substrate may be bent substantially orthogonal to the display panel to reduce an apparent surface area of the display device. The bent portion may include an electrode for communication with the peripheral circuitry.Type: GrantFiled: July 1, 2013Date of Patent: August 16, 2016Assignee: Apple Inc.Inventors: Brett W. Degner, Chieh-Wei Chen, Dinesh C. Mathew, Paul S. Drzaic, Sang Ha Kim, Silvio Grespan, John Z. Zhong, Jean-Pierre Guillou, Kuo-Hua Sung, Young Bae Park, Vasudha Gupta
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Patent number: 9240555Abstract: An organic luminescent material includes a host luminescent material and a guest luminescent material.Type: GrantFiled: November 15, 2012Date of Patent: January 19, 2016Assignees: Au Optronics Corporation, Academia SinicaInventors: Chin-Ti Chen, Yi-Ting Lee, Meng-Ting Lee, Po-Hsuan Chiang, Chieh-Wei Chen, Chung-Chun Lee
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Patent number: 9231034Abstract: An electronic device may include a display having an array of organic light-emitting diode display pixels. Color filter elements may be used to allow the display to present color images. A blue subpixel may be formed using part of an emissive layer and red and green subpixels may share a separate second part of the emissive layer. In four-subpixel designs, a white or yellow subpixel may also share the emissive layer with the red and green subpixels. Tandem diode configurations may be used in which a blue subpixel has two blue diodes connected in series and other subpixels are formed from respective pairs of series-connected diodes. A pixel definition layer may be formed from a light-absorbing material to suppress ambient light reflections.Type: GrantFiled: August 22, 2014Date of Patent: January 5, 2016Assignee: Apple Inc.Inventors: Chieh-Wei Chen, Paul S. Drzaic
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Patent number: 9129917Abstract: An organic light-emitting device includes a first transparent substrate, an organic light-emitting diode and a bi-stable light control element. The organic light-emitting diode is disposed under the first transparent substrate. The bi-stable light control element is disposed under the organic light-emitting diode. The bi-stable light control element is configured to change an optical state thereof according to a received control signal and thereby changing the amount of lights capable of emitting through the bi-stable light control element. A control method for the aforementioned organic light-emitting device is also provided.Type: GrantFiled: April 26, 2012Date of Patent: September 8, 2015Assignee: AU OPTRONICS CORP.Inventors: Chun-Liang Lin, Chung-Chia Chen, Hsin-Rong Tseng, Chieh-Wei Chen
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Patent number: 9110607Abstract: A data storage virtualization subsystem (SVS) for providing storage to a host entity is disclosed. The SVS comprises a storage virtualization controller for connecting to the host entity, at least one physical storage device (PSD) pool, and at least one PSD is designated to be a pool spare PSD to the at least one PSD pool. The at least one PSD pool comprises at least one PSD to store user data or associated redundant information and is given a pool ID for identifying the PSD pool.Type: GrantFiled: July 25, 2014Date of Patent: August 18, 2015Assignee: INFORTREND TECHNOLOGY, INC.Inventors: Michael Gordon Schnapp, Chieh-Wei Chen