Patents by Inventor An-Thung Cho
An-Thung Cho 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: 20120112214Abstract: 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: ApplicationFiled: January 19, 2012Publication date: May 10, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Yu-Cheng Chen, Chen-Yueh Li, Ching-Sang Chuang, Ching-Chieh Shih, An-Thung Cho
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Publication number: 20120086672Abstract: A method for locating a touch position is provided. The method is adaptable to an optical touch panel, wherein the optical touch panel has a plurality of visible light sensors and a plurality of corresponding invisible light sensors that are arranged as an array. In the present method, sensing signals of the visible light sensors and the invisible light sensors are read. The sensing signal of each visible light sensor is converted into a first binary code according to a first setting parameter, and the sensing signal of each invisible light sensor is converted into a second binary code according to a second setting parameter and a third setting parameter. An AND operation is performed on all the first binary codes and all the second binary codes to obtain a plurality of logic operation values, so as to locate a position touched by a user on the optical touch panel.Type: ApplicationFiled: December 17, 2010Publication date: April 12, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Hung-Wei Tseng, Cheng-Chiu Pai, Shu-Wen Tzeng, An-Thung Cho
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Patent number: 8154020Abstract: A photo-voltaic cell device includes a first electrode, an N-type doped silicon-rich dielectric layer, a P-type doped silicon-rich dielectric layer, and a second electrode. The N-type doped silicon-rich dielectric layer is disposed on the first electrode, and the N-type doped silicon-rich dielectric layer is doped with an N-type dopant. The P-type doped silicon-rich dielectric layer is disposed on the N-type doped silicon-rich dielectric layer, and the P-type doped silicon-rich dielectric layer is doped with a P-type dopant. The second electrode is disposed on the P-type doped silicon-rich dielectric layer. A display panel including the photo-voltaic cell device is also provided.Type: GrantFiled: May 12, 2009Date of Patent: April 10, 2012Assignee: Au Optronics CorporationInventors: An-Thung Cho, Chia-Tien Peng, Yu-Cheng Chen, Hong-Zhang Lin, Yi-Chien Wen, Wei-Min Sun, Chi-Mao Hung, Chun-Hsiun Chen
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Patent number: 8148185Abstract: A method for fabricating 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 formed on the display area of the substrate. A gate insulator is formed on the substrate. A patterned semiconductor layer, a second patterned conductor layer and a patterned photosensitive dielectric layer are formed 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 formed on the substrate. After that, a third patterned conductor layer including a pixel electrode and an upper electrode is formed on the passivation layer.Type: GrantFiled: September 15, 2009Date of Patent: April 3, 2012Assignee: Au Optronics CorporationInventors: Yu-Cheng Chen, Chen-Yueh Li, Ching-Sang Chuang, Ching-Chieh Shih, An-Thung Cho
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Patent number: 8115846Abstract: The present invention relates to an active pixel sensor circuit and a method of operating same. In one embodiment, the active pixel sensor circuit includes a reset transistor having a gate, a source and a drain, a silicon rich oxide (SRO) photosensor having an anode and a cathode electrically coupled to the source of the reset transistor, and a readout transistor having a gate electrically coupled to the cathode of the SRO photosensor, a source and a drain.Type: GrantFiled: October 15, 2008Date of Patent: February 14, 2012Assignee: Au Optronics CorporationInventors: Ming-Hung Chuang, An-Thung Cho
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Patent number: 8093648Abstract: A method for manufacturing a non-volatile memory and a structure thereof are provided. The manufacturing method comprises the following steps. Firstly, a substrate is provided. Next, a semiconductor layer is formed on the substrate. Then, a Si-rich dielectric layer is formed on the semiconductor layer. After that, a plurality of silicon nanocrystals is formed in the Si-rich dielectric layer by a laser annealing process to form a charge-storing dielectric layer. Last, a gate electrode is formed on the charge-storing dielectric layer.Type: GrantFiled: July 10, 2009Date of Patent: January 10, 2012Assignee: Au Optronics Corp.Inventors: An-Thung Cho, Chia-Tien Peng, Chih-Wei Chao, Wan-Yi Liu, Chia-Kai Chen, Chun-Hsiun Chen, Wei-Ming Huang
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Publication number: 20110317121Abstract: A flat display device integrated with a photovoltaic cell is disclosed. The flat display device includes a first substrate, a second substrate, a display medium layer, a first photovoltaic cell, a connecting layer and a conductive structure. The display medium layer is sealed between the first and second substrates. The first photovoltaic cell is disposed on the first substrate. The connecting layer is disposed on the second substrate and is capable of electrically connecting the first photovoltaic cell to an external circuit. The conductive structure is disposed between the first and second substrates, and is electrically connected with the first photovoltaic cell and the connecting layer.Type: ApplicationFiled: April 18, 2011Publication date: December 29, 2011Applicant: AU OPTRONICS CORP.Inventors: Cheng-Tao LIN, En-Hung Liu, An-Thung Cho, Ching-Sheng Cheng
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Publication number: 20110216256Abstract: A reflective type touch-sensing display panel including a front substrate, scan lines, data lines, pixel structures, photo-sensors, readout devices, a rear substrate and a reflective display medium is provided. The front substrate has an inner surface. The scan lines and the data lines are on the inner surface of the front substrate and intersected to each other. The pixel structures are disposed on the inner surface of the front substrate, and each pixel structure is electrically connected to one of the scan lines and one of the data lines correspondingly. The photo-sensors are disposed on the inner surface of the front substrate. Each readout device is electrically connected to one of the photo-sensor correspondingly. The rear substrate is disposed opposite to the front substrate. The reflective display medium is sealed between the front substrate and the rear substrate.Type: ApplicationFiled: May 17, 2010Publication date: September 8, 2011Applicant: AU OPTRONICS CORPORATIONInventors: Hsiang-Lin Lin, An-Thung Cho, Chih-Jen Hu, Wei-Ming Huang
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Publication number: 20110156043Abstract: A thin film transistor disposed on a substrate is provided. The thin film transistor includes a gate, a gate insulating layer, a silicon-rich channel layer, a source, and a drain. The gate is disposed on the substrate. The gate insulator is disposed over the gate. The silicon-rich channel layer is disposed above the gate, wherein the material of the silicon-rich channel layer is selected from a group consisting of silicon-rich silicon oxide (Si-rich SiOx), silicon-rich silicon nitride (Si-rich SiNx), silicon-rich silicon oxynitride (Si-rich SiOxNy), silicon-rich silicon carbide (Si-rich SiC) and silicon-rich silicon oxycarbide (Si-rich SiOC). The content (concentration) of silicon of the silicon-rich channel layer within a film depth between 10 nm to 170 nm ranges from about 1E23 atoms/cm3 to about 4E23 atoms/cm3. The source and the drain are connected with the silicon-rich channel layer.Type: ApplicationFiled: December 10, 2010Publication date: June 30, 2011Applicant: AU OPTRONICS CORPORATIONInventors: An-Thung Cho, Wan-Yi Liu, Chia-Kai Chen, Wu-Hsiung Lin, Chun-Hsiun Chen, Wei-Ming Huang
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Publication number: 20110043487Abstract: An OLED display is proposed. The OLED display includes a gate driver for generating a scanning signal, a source driver for generating a data signal, and a plurality of cells arranged in an array. Each cell includes a first transistor for delivering the data signal when receiving the scanning signal, a second transistor for generating a driving current based on a voltage difference between a first supply voltage signal and the data signal, a storage capacitor coupled between the first transistor and an output end of the driving circuit, for storing the data signal, an organic light emitting diode for generating light based on the driving current, an infrared emitting layer for producing infrared ray, and an infrared sensitive layer for sensing the infrared ray reflected by an object.Type: ApplicationFiled: July 2, 2010Publication date: February 24, 2011Inventors: Jung-yen Huang, An-thung Cho, Shih-feng Hsu, Wei-pang Huang, Chia-tien Peng
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Publication number: 20110037729Abstract: A displaying region and a sensing region are defined in each pixel region of the OLED touch panel of the present invention. The readout thin film transistor of the sensing region is formed by the same processes with the drive thin film transistor of the displaying region. The top and bottom electrodes of the optical sensor are formed by the same processes with the top and bottom electrodes of the OLED. Accordingly, the present invention can just add a step of forming the patterned sensing dielectric layer to the processes of forming an OLED panel to integrate the optical sensor into the pixel region of the OLED panel. Thus, an OLED touch panel is formed.Type: ApplicationFiled: March 4, 2010Publication date: February 17, 2011Inventors: An-Thung Cho, Jung-Yen Huang, Chia-Tien Peng, Chun-Hsiun Chen, Wei-Ming Huang
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Publication number: 20100330735Abstract: A method of forming an optical sensor includes the following steps. A substrate is provided, and a read-out device is formed on the substrate. a first electrode electrically connected to the read-out device is formed on the substrate. a photosensitive silicon-rich dielectric layer is formed on the first electrode, wherein the photosensitive silicon-rich dielectric layer comprises a plurality of nanocrystalline silicon crystals. A second electrode is formed on the photosensitive silicon-rich dielectric layer.Type: ApplicationFiled: September 1, 2010Publication date: December 30, 2010Inventors: An-Thung Cho, Chia-Tien Peng, Kun-Chih Lin
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Publication number: 20100327289Abstract: A UV sensor comprises a silicon-rich dielectric layer with a refractive index in a range of about 1.7 to about 2.5 for serving as the light sensing material of the UV sensor. The fabrication method of the UV sensor can be integrated with the fabrication process of semiconductor devices or flat display panels.Type: ApplicationFiled: February 21, 2010Publication date: December 30, 2010Inventors: An-Thung Cho, Chi-Hua Sheng, Ruei-Liang Luo, Wan-Yi Liu, Wei-Min Sun, Chi-Mao Hung, Chun-Hsiun Chen, Wei-Ming Huang
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Patent number: 7857907Abstract: The present invention relates to a method for forming a layered structure with silicon nanocrystals. In one embodiment, the method comprises the steps of: (i) forming a first conductive layer on a substrate, (ii) forming a silicon-rich dielectric layer on the first conductive layer, and (iii) laser-annealing at least the silicon-rich dielectric layer to induce silicon-rich aggregation to form a plurality of silicon nanocrystals in the silicon-rich dielectric layer. The silicon-rich dielectric layer is one of a silicon-rich oxide film having a refractive index in the range of about 1.4 to 2.3, or a silicon-rich nitride film having a refractive index in the range of about 1.7 to 2.3. The layered structure with silicon nanocrystals in a silicon-rich dielectric layer is usable in a solar cell, a photodetector, a touch panel, a non-volatile memory device as storage node, and a liquid crystal display.Type: GrantFiled: January 25, 2007Date of Patent: December 28, 2010Assignee: AU Optronics CorporationInventors: An-Thung Cho, Chih-Wei Chao, Chia-Tien Peng, Wan-Yi Liu, Ming-Wei Sun
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Publication number: 20100321341Abstract: The present invention provides a photo sensor, a method of forming the photo sensor, and a related optical touch device. The photo sensor includes a first electrode, a second electrode, a first silicon-rich dielectric layer and a second silicon-rich dielectric layer. The first silicon-rich dielectric layer is disposed between the first electrode and the second electrode for sensing infrared rays, and the second silicon-rich dielectric layer is disposed between the first silicon-rich dielectric layer and the second electrode for sensing visible light beams. The multi-layer structure including the first silicon-rich dielectric layer and the second silicon-rich dielectric layer enables the single photo sensor to effectively detect both infrared rays and visible light beams. Moreover, the single photo sensor is easily integrated into an optical touch device to form optical touch panel integrated on glass.Type: ApplicationFiled: March 7, 2010Publication date: December 23, 2010Inventors: An-Thung Cho, Chia-Tien Peng, Hung-Wei Tseng, Cheng-Chiu Pai, Yu-Hsuan Li, Chun-Hsiun Chen, Wei-Ming Huang
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Publication number: 20100315580Abstract: A display panel having a pixel region and a sensing region includes a first substrate, a second substrate and a display medium layer. A plurality of pixel structures and at least one photo-voltaic cell device are disposed on the first substrate. The pixel structures are arranged in the pixel region in array, and each of the pixel structures includes a thin film transistor and a pixel electrode electrically connected to the thin film transistor. The photo-voltaic cell device disposed in the sensing region includes a doped semiconductor layer, a transparent electrode layer, a first type doped silicon-rich dielectric layer and a second type doped silicon-rich dielectric layer. The first type doped silicon-rich dielectric layer and the second type doped silicon-rich dielectric layer are disposed between the doped semiconductor layer and the transparent electrode layer. The display medium layer is disposed between the first substrate and the second substrate.Type: ApplicationFiled: October 1, 2009Publication date: December 16, 2010Applicant: AU OPTRONICS CORPORATIONInventors: An-Thung Cho, Chia-Tien Peng, Wan-Yi Liu, Chun-Hsiun Chen, Wei-Ming Huang
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Patent number: 7829920Abstract: A photo detector has a sensing TFT (thin film transistor) and a photodiode. The sensing TFT has a gate and a base. The photodiode has an intrinsic semiconductor region electrically connected to the gate and the base of the sensing TFT. The sensing TFT and the photodiode both have a structure comprising low temperature poly-silicon. A display panel contains the photo detector is also disclosed.Type: GrantFiled: July 18, 2008Date of Patent: November 9, 2010Assignee: Au Optronics CorporationInventors: An-Thung Cho, Chia-Tien Peng, Kun-Chih Lin, Wen-Jen Chiang, Chih-Yang Chen, Chrong-Jung Lin, Ya-Chin King, Chih-Wei Chao, Chien-Sen Weng, Feng-Yuan Gan
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Publication number: 20100267177Abstract: A method for fabricating 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 formed on the display area of the substrate. A gate insulator is formed on the substrate. A patterned semiconductor layer, a second patterned conductor layer and a patterned photosensitive dielectric layer are formed 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 formed on the substrate. After that, a third patterned conductor layer including a pixel electrode and an upper electrode is formed on the passivation layer.Type: ApplicationFiled: September 15, 2009Publication date: October 21, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Yu-Cheng Chen, Chen-Yueh Li, Ching-Sang Chuang, Ching-Chieh Shih, An-Thung Cho
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Patent number: 7816751Abstract: An optical sensor includes a silicon-rich dielectric photosensitive device and a read-out device. The silicon-rich dielectric photosensitive device includes a first electrode, a second electrode, and a photosensitive silicon-rich dielectric layer disposed therebetween. The photosensitive silicon-rich dielectric layer includes a plurality of nanocrystalline silicon crystals therein. The read-out device is electrically connected to the first electrode of the silicon-rich dielectric photosensitive device for reading out opto-electronic signals transmitted from the photo-sensitive silicon-rich dielectric layer.Type: GrantFiled: December 31, 2008Date of Patent: October 19, 2010Assignee: AU Optronics Corp.Inventors: An-Thung Cho, Chia-Tien Peng, Kun-Chih Lin
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Patent number: 7790487Abstract: A method for fabricating a photo sensor on an amorphous silicon thin film transistor panel includes forming a photo sensor with a bottom electrode, a silicon-rich dielectric layer, and a top electrode, such that the light sensor has a high reliability. The fabrication method is compatible with the fabrication process of a thin film transistor.Type: GrantFiled: September 16, 2008Date of Patent: September 7, 2010Assignee: AU Optronics Corp.Inventors: Ching-Chieh Shih, An-Thung Cho, Chia-Tien Peng, Kun-Chih Lin