Patents by Inventor Chun-hao Tung
Chun-hao Tung 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: 20150212609Abstract: A touch sensor panel including one or more conductive sections disposed in an outer area of a touch sensor panel is disclosed. The touch sensor panel stackup can include a substrate, one or more underlying layers, one or more patterned transparent conductive layers, and one or more conductive sections. In some examples, the stackup can include one or more passivation layers. The one or more underlying layers, patterned transparent conductive layers, one or more conductive sections, and passivation layers can be deposited on the same side of the substrate, on different sides of the substrate, or on different substrates. The one or more conductive sections can block unwanted light from penetrating to one or more layers of the touch sensor stackup and preventing changes to the properties of the one or more layers of the stackup.Type: ApplicationFiled: January 28, 2014Publication date: July 30, 2015Applicant: Apple Inc.Inventors: Chun-Hao TUNG, Ohseung KWON, Sunggu KANG, John Z. ZHONG
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Patent number: 9079384Abstract: Touch sensor panels typically include a plurality of layers that can be stacked on top of each other. When the touch sensor panel is used in a bright environment, incident light can hit the interfaces between those layers of the stackup having mismatched refractive indices and can reflect off those interfaces. The light reflected from those interfaces can give rise to the appearance of fringes on the touch sensor panel, which can be visually distracting. In order to reduce the appearance of these fringes, embodiments of the disclosure are directed to the addition of an index matching passivation layer between a conductive layer of traces and an adhesive layer in the touch sensor panel stackup.Type: GrantFiled: February 10, 2012Date of Patent: July 14, 2015Assignee: Apple Inc.Inventors: Chun-Hao Tung, EnkhAmgalan Dorjgotov, Masato Kuwabara, Sunggu Kang, Cheng Chen, John Z. Zhong
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Publication number: 20150116255Abstract: Compact touch sensors for touch sensitive devices and processes for forming the touch sensors are disclosed. The touch sensor structure can include a substrate, one or more underlying layers disposed on the substrate, one or more blocking layers disposed on the substrate or on one or more underlying layers, and one or more patterned layers disposed on the underlying layers or blocking layers. The one or more blocking layers can be configured to block underlying layers from exposure to certain wavelengths of light or from penetration of a laser beam that can cause damage. Additionally, the one or more underlying layers can be multi-functional, including the ability to block one or more light sources.Type: ApplicationFiled: October 30, 2013Publication date: April 30, 2015Applicant: Apple Inc.Inventors: John Z. ZHONG, Sunggu KANG, James Edward Alexander PEDDER, Chun-Hao TUNG
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Publication number: 20140347574Abstract: Methods of fabrication of a touch sensor panel using laser ablation are provided. The fabricated touch sensor panel can have touch sensors disposed on a surface of a substrate. A fabrication method can include depositing a first conductive layer onto a substrate in a touch sensor region and a border region, depositing a second conductive layer onto the first conductive layer in the border region, and ablating the second conductive layer at removal locations in the border region to define border traces for providing off-panel connections to touch sensors in the touch sensor region. This fabrication method can advantageously provide touch sensors in a fabrication process with high throughput using low cost material and equipment.Type: ApplicationFiled: May 21, 2013Publication date: November 27, 2014Applicant: Apple Inc.Inventors: Chun-Hao TUNG, Sunggu Kang, John Z. Zhong
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Publication number: 20140065321Abstract: The described embodiments relate generally to the singulation of circuits and more particularly to a method of cutting of a polymer substrate that is overlaid with a conductive element and a passivation layer. In one embodiment, the passivation layer is applied selectively to the polymer substrate in an area covering the conductive element and extending at least a first distance past an outer edge of the conductive element. Then, a cutting operation is performed along a cutting path located a second distance from an outer edge of the passivation layer. The second distance is a minimum distance between the edge of the passivation layer and the cutting path that prevents a load applied at the second distance from causing a stress crack in the passivation layer.Type: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Applicant: Apple Inc.Inventors: Wonsuk Chung, Chun-Hao Tung, Yu-Chun Tseng, Sunggu Kang, John Z. Zhong, Siddharth Mohapatra
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Patent number: 8551822Abstract: A method for manufacturing a substrate for a flat panel display device is disclosed. The present method uses photolithography with four masks to manufacture a TFT-LCD. After the third half-tone mask is used, the manufacturing of the TFTs and the defining of the pixel area of the substrate can be completed. The present method can avoid the alignment deviation and the generation of parasitic capacitance happened on the substrate made through the conventional photolithography with five masks. Therefore, the present method can reduce the costs and increase the yield. Moreover, the substrate for the TFT-LCD made by the present method can define a channel region in the semiconductor layer after the second half-tone mask. Hence, the subsequent manufacturing for forming a transparent conductive layer, a source, and a drain can be achieved by wet etching to effectively reduce the non-homogeneous etching for the channel region in the semiconductor layer.Type: GrantFiled: December 27, 2007Date of Patent: October 8, 2013Assignee: Quanta Display Inc.Inventor: Chun-Hao Tung
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Publication number: 20130120283Abstract: Touch sensor panels typically include a plurality of layers that can be stacked on top of each other. When the touch sensor panel is used in a bright environment, incident light can hit the interfaces between those layers of the stackup having mismatched refractive indices and can reflect off those interfaces. The light reflected from those interfaces can give rise to the appearance of fringes on the touch sensor panel, which can be visually distracting. In order to reduce the appearance of these fringes, embodiments of the disclosure are directed to the addition of an index matching passivation layer between a conductive layer of traces and an adhesive layer in the touch sensor panel stackup.Type: ApplicationFiled: February 10, 2012Publication date: May 16, 2013Inventors: Chun-Hao TUNG, EnkhAmgalan DORJGOTOV, Masato KUWABARA, Sunggu KANG, Cheng CHEN, John Z. ZHONG
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Patent number: 8216891Abstract: Lift-off method and half-tone photolithography are used to fabricate LCD TFT array plate. Only two photo masks are used to respectively define a first and a second metal layers to accomplish the LCD TFT array plate.Type: GrantFiled: September 28, 2010Date of Patent: July 10, 2012Assignee: AU Optronics Corp.Inventors: Yeong-Feng Wang, Liang-Bin Yu, Chih-Jui Pan, Chun-Hao Tung
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Patent number: 8178262Abstract: A method of fabricating a color filter layer is provided. An active device array substrate having an opaque metal pattern formed thereon is provided. A planarization layer covering the opaque metal pattern is formed. A back-side exposure process is performed on the active device array substrate using the opaque metal layer as a mask to form a black matrix thereon, wherein the black matrix defines a plurality of pixel regions. A plurality of color filter patterns is formed in the pixel regions.Type: GrantFiled: July 5, 2010Date of Patent: May 15, 2012Assignee: Au Optronics CorporationInventors: Chun-Hao Tung, Jui-Yin Chung
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Patent number: 7956961Abstract: A pixel structure disposed on a substrate having a plurality of protrudent patterns is provided. An area where the protrudent patterns are disposed defines a first display area. The arrangement of the protrudent patterns forms a plurality of arc loci. The arc loci have a same arc center disposed at a corner of the first display area. The abovementioned protrudent patterns avails improvement of a displaying effect of the pixel structure.Type: GrantFiled: April 29, 2008Date of Patent: June 7, 2011Assignee: Au Optronics CorporationInventors: Chun-Hao Tung, Kuo-Yu Huang
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Publication number: 20110014738Abstract: Lift-off method and half-tone photolithography are used to fabricate LCD TFT array plate. Only two photo masks are used to respectively define a first and a second metal layers to accomplish the LCD TFT array plate.Type: ApplicationFiled: September 28, 2010Publication date: January 20, 2011Applicant: AU OPTRONICS CORP.Inventors: Yeong-Feng Wang, Liang-Bin Yu, Chih-Jui Pan, Chun-Hao Tung
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Patent number: 7871868Abstract: Lift-off method and half-tone photolithography are used to fabricate LCD TFT array plate. Only two photo masks are used to respectively define a first and a second metal layers to accomplish the LCD TFT array plate.Type: GrantFiled: October 12, 2007Date of Patent: January 18, 2011Assignee: AU Optronics Corp.Inventors: Yeong-Feng Wang, Liang-Bin Yu, Chih-Jui Pan, Chun-Hao Tung
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Patent number: 7858413Abstract: A method of manufacturing the pixel structure is provided. The method includes forming a gate, a scan line connected to the gate, and at least one auxiliary pattern on a substrate. An insulating layer, a semiconductor layer, an ohmic contact layer, and a photoresist layer are formed in sequence. Afterwards, a single exposure and development is performed on the photoresist layer to form a first portion and a second portion. Next, the ohmic contact layer and the semiconductor layer which are not covered by the photoresist layer are removed to expose a part of the insulating layer. Next, the second portion of the photoresist layer is removed. Subsequently, a part of the thickness of the semiconductor layer not covered by the first portion is removed and the exposed insulating layer is removed, so as to form a channel layer and an insulating layer.Type: GrantFiled: February 5, 2010Date of Patent: December 28, 2010Assignee: Au Optronics CorporationInventor: Chun-Hao Tung
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Publication number: 20100291479Abstract: A method of fabricating a color filter layer is provided. An active device array substrate having an opaque metal pattern formed thereon is provided. A planarization layer covering the opaque metal pattern is formed. A back-side exposure process is performed on the active device array substrate using the opaque metal layer as a mask to form a black matrix thereon, wherein the black matrix defines a plurality of pixel regions. A plurality of color filter patterns is formed in the pixel regions.Type: ApplicationFiled: July 5, 2010Publication date: November 18, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Hao Tung, Jui-Yin Chung
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Patent number: 7811724Abstract: A method of fabricating a color filter layer is provided. First, an active device array substrate having an opaque metal pattern formed thereon is provided. Next, a back-side exposure process is performed on the active device array substrate using the opaque metal layer as a mask to form a black matrix defining a plurality of pixel regions. Next, a plurality of color filter patterns is formed in the pixel regions.Type: GrantFiled: April 3, 2007Date of Patent: October 12, 2010Assignee: Au Optronics CorporationInventors: Chun-Hao Tung, Jui-Yin Chung
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Patent number: 7776497Abstract: A mask including a transparent substrate, a non-transmitting layer, a first transmitting layer and a second transmitting layer is provided. The transparent substrate has a first region, a second region, and a third region. The non-transmitting layer is disposed in the first region of the transparent substrate. The first transmitting layer is disposed in the second region and the third region of the transparent substrate. The second transmitting layer is disposed on the first transmitting layer in the third region.Type: GrantFiled: August 26, 2009Date of Patent: August 17, 2010Assignee: Au Optronic Corp.Inventors: Chun-Hao Tung, Chia-Tsung Lee, Hsien-Kai Tseng, Shigekazu Horino
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Publication number: 20100141608Abstract: Index matching for touch screens is provided. An index matching stackup for a touch screen can be formed including a substantially transparent substrate, a substantially transparent conductive layer disposed in a pattern, and an index matching layer for improving an optical uniformity of the touch screen. The index matching layer can also be designed to operate as a dual-function layer. In one dual-function design, the index matching layer design performs both index matching and passivating the conductive layer. In another dual-function design, the index matching layer performs both index matching and adhesion of layers. The index matching layer can also be designed to serve all three functions of index matching, passivating, and adhering.Type: ApplicationFiled: December 9, 2008Publication date: June 10, 2010Inventors: Lili HUANG, Shih Chang Chang, Neal Oldham, Steve Porter Hotelling, John Z. Zhong, Chun-Hao Tung
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Publication number: 20100136720Abstract: A method of manufacturing the pixel structure is provided. The method includes forming a gate, a scan line connected to the gate, and at least one auxiliary pattern on a substrate. An insulating layer, a semiconductor layer, an ohmic contact layer, and a photoresist layer are formed in sequence. Afterwards, a single exposure and development is performed on the photoresist layer to form a first portion and a second portion. Next, the ohmic contact layer and the semiconductor layer which are not covered by the photoresist layer are removed to expose a part of the insulating layer. Next, the second portion of the photoresist layer is removed. Subsequently, a part of the thickness of the semiconductor layer not covered by the first portion is removed and the exposed insulating layer is removed, so as to faun a channel layer and an insulating layer.Type: ApplicationFiled: February 5, 2010Publication date: June 3, 2010Applicant: Au Optronics CorporationInventor: CHUN-HAO TUNG
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Patent number: 7704647Abstract: A mask and a manufacturing method thereof are provided. A transparent substrate having three regions is provided first. A non-transmitting layer is formed in a first region of the transparent substrate. Then, a first photoresist layer is formed on the transparent substrate, and the first photoresist layer exposes a second region of the transparent substrate. Next, a first transmitting layer is formed on the transparent substrate and the first photoresist layer. Finally, the first photoresist layer is removed. The first transmitting layer on the first photoresist layer is removed at the same time and the first transmitting layer in the second region of the transparent substrate is remained and a third region of the transparent substrate is exposed. A lift-off process is used in the mask manufacturing method of the present invention to form the transmitting layer.Type: GrantFiled: May 31, 2006Date of Patent: April 27, 2010Assignee: Au Optronics Corp.Inventors: Chun-Hao Tung, Chia-Tsung Lee, Hsien-Kai Tseng, Horino Shigekazu
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Patent number: 7700388Abstract: A method of manufacturing a pixel structure is provided. A gate, a scan line, and at least one first auxiliary pattern are formed on a substrate. A gate insulating layer is formed on the substrate to cover the gate and the scan line and expose the first auxiliary pattern and a part of the scan line. A channel layer is formed on the gate insulating layer over the gate. A source, a drain, a data line, a top electrode, and at least one second auxiliary pattern are formed, wherein the data line is electrically connected to the exposed first auxiliary pattern and the second auxiliary pattern is electrically connected to the exposed scan line. A passivation layer and a pixel electrode are formed, and the pixel electrode is electrically connected to the drain and the top electrode.Type: GrantFiled: November 28, 2006Date of Patent: April 20, 2010Assignee: Au Optronics CorporationInventor: Chun-Hao Tung