Patents by Inventor Po Tang
Po Tang 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: 8519939Abstract: An LCD and a backlight module driving device and a method thereof are provided. The method is adapted to drive at least one backlight unit in a backlight module. The backlight unit is used for supplying a surface light source to an Nth area pixel of the LCD panel, where N is a positive integer. The method includes the following steps of first calculating a time of the Nth area pixel under a stable state in a frame period and then providing a control signal to drive the backlight unit when the Nth area pixel is under the stable state in the frame period.Type: GrantFiled: June 9, 2008Date of Patent: August 27, 2013Assignee: Au Optronics CorporationInventors: Yueh-Han Li, Po-Tang Hsu, Chien-Ming Ko, Ching-Chou Yu
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Publication number: 20130155498Abstract: A microscope apparatus includes a condenser lens to make an illuminating electromagnetic wave relatively homogeneous, a first beam splitter splitting the illuminating electromagnetic wave after the condenser lens, a movable reflector module, a second beam splitter, an objective lens to project the illuminating electromagnetic wave propagating after an object to be observed toward an observing device. The object is loaded between the first beam splitter and the second beam splitter. The microscope apparatus is configured to split the illuminating electromagnetic wave into two paths at the first beam splitter. A first path goes through the first and the second beam splitters, and a second path goes through the movable reflector module to rejoin the first path at the second beam splitter. The microscope apparatus is configured acquire phase images with interferences of the electromagnetic wave from the two paths with at least two distance settings of the movable reflector module.Type: ApplicationFiled: December 16, 2011Publication date: June 20, 2013Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Fu-Sheng CHU, Chih-Shiang CHOU, Yu-Po TANG, Yan-Ying HE
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Patent number: 8431291Abstract: An intensity selective exposure photomask, also describes as a gradated photomask, is provided. The photomask includes a first region including a first array of sub-resolution features. The first region blocks a first percentage of the incident radiation. The photomask also includes a second region including a second array of sub-resolution features. The second region blocks a second percentage of the incident radiation different that the first percentage.Type: GrantFiled: October 25, 2011Date of Patent: April 30, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: George Liu, Kuei Shun Chen, Chih-Yang Yeh, Te-Chih Huang, Wen-Hao Liu, Ying-Chou Cheng, Boren Luo, Tsong-Hua Ou, Yu-Po Tang, Wen-Chun Huang, Ru-Gun Liu, Shu-Chen Lu, Yu Lun Liu, Yao-Ching Ku, Tsai-Sheng Gau
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Publication number: 20130077173Abstract: The present invention relates to a display screen mask structure using a shielding frame and a manufacturing method thereof. A combination of a shielding frame body and a plurality of substrate units, or a combination of a surface-printing outer frame portion and a surface-printing separated inner frame portion of a shielding frame body to be connectively overlapped on a single or multiple layers of light-transmitting thin film substrate, is overlapped on a self-light emitting display element of a photoelectric device panel. The light, scattered from the self-light emitting display element, is filtered and reflected by and concentratedly radiated from the outer frame portion and the separated inner frame portions of the shielding frame body, so that the light radiated from the self-light emitting display element of the photoelectric device panel is more concentratedly purified and has an enhanced color contrast of the dark tone.Type: ApplicationFiled: January 20, 2012Publication date: March 28, 2013Inventors: Rih-Yang WANG, Po-Tang Wang, Shu-Hui Chang
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Publication number: 20130070342Abstract: The present invention is related to a display screen mask structure, providing a plurality of arranged and combined substrate units overlapped on a self-light emitting display element of a photoelectric device panel. The light, radiated from the self-light emitting display element, is filtered and reflected by and concentratedly radiated from a light-reflecting layer overlapped on the light-transmitting bodies of the substrate units, so that the light leakage can be prevented and an external strong light can be shielded by the light-shielding layer overlapped on the light-reflecting layer, the light generated from the self-light emitting display element can be efficiently concentrated, and the phenomenon such as whitening and low image contrast ratio occurred by an external light radiating on a display panel can be improved.Type: ApplicationFiled: January 19, 2012Publication date: March 21, 2013Inventors: Rih-Yang Wang, Po-Tang Wang, Yuan-Hsing Ko, Shu-Hui Chang
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Patent number: 8381153Abstract: The present disclosure provides one embodiment of an integrated circuit (IC) design method. The method includes receiving an IC design layout having a plurality of main features; applying a main feature dissection to the main features of the IC design layout and generating sub-portions of the main features; performing an optical proximity correction (OPC) to the main features; performing a mask rule check (MRC) to a main feature of the IC design layout; and modifying one of the sub-portions of the main feature if the main feature fails the MRC.Type: GrantFiled: September 17, 2010Date of Patent: February 19, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chia-Ping Chiang, Yu-Po Tang, Ming-Hui Chih, Cheng-Kun Tsai, Wei-Long Wang, Wen-Chun Huang, Ru-Gun Liu, Tsai-Sheng Gau, Cheng-Lung Tsai, Josh J. H. Feng, Bing-Syun Yeh, Jeng-Shiun Ho, Cheng-Cheng Kuo
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Patent number: 8233118Abstract: A color liquid-crystal display panel has a red filter segment in each red sub-pixel and a blue filter segment in each blue sub-pixel, but no green filter segment in green sub-pixels. The liquid-crystal display panel has a backlight source for illuminating, and the backlight source has green light producing components alternately switched on and off in consecutive frames. The backlight source also has white or red/blue, or purple light emitting components alternately switched on and off in consecutive frames in complementary phase to the green light producing components. When the liquid crystal layer segments associated with all the three color sub-pixels are operated in a light non-blocking state, only the white or red/blue light producing components are turned on, and when the liquid crystal layer segments associated with the red sub-pixels are operated in a light blocking state, only the green light producing components are turned on.Type: GrantFiled: August 12, 2008Date of Patent: July 31, 2012Assignee: AU Optronics CorporationInventors: Yueh-Han Li, Po-Tang Hsu, Chih-Fu Hsu, Chien-Ming Ko, Chun-Liang Lin
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Patent number: 8217592Abstract: A light emitting diode driving device and driving method thereof are provided. The light emitting diode driving device includes a duty cycle setup unit, a current setup unit, a control unit, and a light emitting diode driving circuit. The duty cycle setup unit is used for outputting duty cycle setup signal. The current set up unit is used for outputting a current setup signal. The control unit is used for receiving the duty cycle setup signal and the current setup signal, and outputting a current control signal and a duty cycle control signal in response to the duty cycle setup signal and the current setup signal. The light emitting diode driving circuit is used for driving at least one light emitting diode in response to the current control signal and the duty cycle control signal.Type: GrantFiled: November 19, 2009Date of Patent: July 10, 2012Assignee: AU Optronics Corp.Inventors: Ching-Chou Yu, Hung-Ching Lee, Po-Tang Hsu
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Publication number: 20120072874Abstract: The present disclosure provides one embodiment of an integrated circuit (IC) design method. The method includes receiving an IC design layout having a plurality of main features; applying a main feature dissection to the main features of the IC design layout and generating sub-portions of the main features; performing an optical proximity correction (OPC) to the main features; performing a mask rule check (MRC) to a main feature of the IC design layout; and modifying one of the sub-portions of the main feature if the main feature fails the MRC.Type: ApplicationFiled: September 17, 2010Publication date: March 22, 2012Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chia-Ping Chiang, Yu-Po Tang, Ming-Hui Chih, Cheng-Kun Tsai, Wei-Long Wang, Wen-Chun Huang, Ru-Gun Liu, Tsai-Sheng Gau, Cheng-Lung Tsai, Josh J.H. Feng, Bing-Syun Yeh, Jeng-Shiun Ho, Cheng-Cheng Kuo
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Publication number: 20120060817Abstract: A stove structure includes a stove body. The stove body has a heat source portion and a wall portion. The wall portion has an inner wall and an outer wall. The inner wall and the outer wall are connected by a plurality of cross-section conducting members. Between the inner wall, the outer wall and the cross-section conducting members is provided with a low conductivity coefficient member. The cross-section conducting members extend the heat conduction distance and decrease the contact area of heat conduction. The lower conductivity coefficient member and the cross-section conducting members lower the heat conduction rate. The temperature of the outer wall is lowered to a second temperature and the temperature in the heating portion of the stove body is kept at the first high temperature.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Inventors: Po-Tang WANG, Hui-Chun Yu, Kuan-Wen Wang, Rih-Yang Wang, Ting-Yu Wang
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Publication number: 20120040278Abstract: An intensity selective exposure photomask, also describes as a gradated photomask, is provided. The photomask includes a first region including a first array of sub-resolution features. The first region blocks a first percentage of the incident radiation. The photomask also includes a second region including a second array of sub-resolution features. The second region blocks a second percentage of the incident radiation different that the first percentage.Type: ApplicationFiled: October 25, 2011Publication date: February 16, 2012Applicant: Taiwan Semiconductor Manufacturing Company, Ltd., ("TSMC")Inventors: George Liu, Kuei Shun Chen, Chih-Yang Yeh, Te-Chih Huang, Wen-Hao Liu, Ying-Chou Cheng, Boren Luo, Tsong-Hua Ou, Yu-Po Tang, Wen-Chun Huang, Ru-Gun Liu, Shu-Chen Lu, Yu Lun Liu, Yao-Ching Ku, Tsai-Sheng Gau
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Publication number: 20110217630Abstract: An intensity selective exposure photomask, also describes as a gradated photomask, is provided. The photomask includes a first region including a first array of sub-resolution features. The first region blocks a first percentage of the incident radiation. The photomask also includes a second region including a second array of sub-resolution features. The second region blocks a second percentage of the incident radiation different that the first percentage. Each of the features of the first and second array includes an opening disposed in an area of attenuating material.Type: ApplicationFiled: March 11, 2011Publication date: September 8, 2011Applicant: Taiwan Semiconductor Manufacturing Company, Ltd., ("TSMC")Inventors: George Liu, Kuei Shun Chen, Chih-Yang Yeh, Te-Chih Huang, Wen-Hao Liu, Ying-Chou Cheng, Boren Luo, Tsong-Hua Ou, Yu-Po Tang, Wen-Chun Huang, Ru-Gun Liu, Shu-Chen Lu, Yu Lun Liu, Yao-Ching Ku, Tsai-Sheng Gau
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Patent number: 7956375Abstract: A light emitting diode structure and a light emitting diode structure forming method are provided. The light emitting diode structure includes a base, a diode chip, and a package lens. The diode chip is mounted on the base. The package lens covers the diode chip. The surface of the package lens includes a plurality of dot structures. The steps of the method include mounting a light-emitting diode chip on a base, assembling a package lens to cover the light emitting diodes chip, and forming a plurality of dot structures on the surface of the package lens.Type: GrantFiled: June 16, 2009Date of Patent: June 7, 2011Assignee: AU Optronics CorporationInventors: Yueh-Han Li, Po-Tang Hsu, Chien-Ming Ko, Hung-Ching Lee, Chih-Wei Lin
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Publication number: 20100201282Abstract: A light emitting diode driving device and driving method thereof are provided. The light emitting diode driving device includes a duty cycle setup unit, a current setup unit, a control unit, and a light emitting diode driving circuit. The duty cycle setup unit is used for outputting duty cycle setup signal. The current set up unit is used for outputting a current setup signal. The control unit is used for receiving the duty cycle setup signal and the current setup signal, and outputting a current control signal and a duty cycle control signal in response to the duty cycle setup signal and the current setup signal. The light emitting diode driving circuit is used for driving at least one light emitting diode in response to the current control signal and the duty cycle control signal.Type: ApplicationFiled: November 19, 2009Publication date: August 12, 2010Applicant: AU OPTRONICS CORP.Inventors: Ching-Chou Yu, Hung-Ching Lee, Po-Tang Hsu
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Publication number: 20100128195Abstract: The present invention is a backlight module including a housing, a reflective sheet, and a light source module. The housing has an inner side surface, an outer side surface, and a plurality of first openings. The reflective sheet is disposed on the inner side surface and has a plurality of second openings corresponding to the first openings. The light source module has a plurality of light sources, wherein the light source module is disposed on the outer side surface, and each of the light sources may penetrate each of the first openings and the second openings. When the light sources are dimmed or have other problems, the light source module can be taken apart from the housing to repair them easily.Type: ApplicationFiled: November 17, 2009Publication date: May 27, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Yueh-Han Li, Po-Tang Hsu, Chih-Fu Hsu, Chien-Ming Ko
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Patent number: 7719208Abstract: When temperature variation occurs to the LED dice of an LED lighting system, a feedback control mechanism is applied to compensate temperature-related wavelength shift for precisely controlling the light generated by the LED dice based on the voltage drop variation or current variation of the LED dice. The color control method for the LED lighting system includes a preliminary detection phase and a feedback control phase. In the preliminary detection phase, voltage drop signals or current signals together with corresponding color and hue signals of each LED module of the LED lighting system are detected. In the feedback control phase, signal compensating processes are performed to precisely control the light generated by the LED lighting system based on the voltage drop variation or the current variation in conjunction with the corresponding color and hue signals generated in the preliminary detection phase.Type: GrantFiled: January 31, 2008Date of Patent: May 18, 2010Assignee: AU Optronics Corp.Inventors: Yueh-Han Li, Po-Tang Hsu, Chien-Ming Ko, Hung-Ching Li
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Publication number: 20100044732Abstract: A light emitting diode structure and a light emitting diode structure forming method are provided. The light emitting diode structure includes a base, a diode chip, and a package lens. The diode chip is mounted on the base. The package lens covers the diode chip. The surface of the package lens includes a plurality of dot structures. The steps of the method include mounting a light-emitting diode chip on a base, assembling a package lens to cover the light emitting diodes chip, and forming a plurality of dot structures on the surface of the package lens.Type: ApplicationFiled: June 16, 2009Publication date: February 25, 2010Applicant: AU Optronics CorporationInventors: Yueh-Han Li, Po-Tang Hsu, Chien-Ming Ko, Hung-Ching Lee, Chih-Wei Lin
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Publication number: 20100039587Abstract: A color liquid-crystal display panel has a red filter segment in each red sub-pixel and a blue filter segment in each blue sub-pixel, but no green filter segment in green sub-pixels. The liquid-crystal display panel has a backlight source for illuminating, and the backlight source has green light producing components alternately switched on and off in consecutive frames. The backlight source also has white or red/blue, or purple light emitting components alternately switched on and off in consecutive frames in complementary phase to the green light producing components. When the liquid crystal layer segments associated with all the three color sub-pixels are operated in a light non-blocking state, only the white or red/blue light producing components are turned on, and when the liquid crystal layer segments associated with the red sub-pixels are operated in a light blocking state, only the green light producing components are turned on.Type: ApplicationFiled: August 12, 2008Publication date: February 18, 2010Inventors: Yueh-Han Li, Po-Tang Hsu, Chih-Fu Hsu, Chien-Ming Ko, Chun-Liang Lin
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Patent number: 7626583Abstract: A voltage detection system comprising a first circuit board, a second circuit board, and a voltage detection circuit. The voltage detection circuit comprises a first connection unit, a second connection unit, a resistor, and a voltage detection unit. Dummy lines of the first and second connection units are coupled in series. When lines of the first and second connection units are not aligned to lines of the first and second circuit boards, an entirety equivalent impedance of the dummy lines is decreased. When detecting that the entirety of equivalent impedance is decreased to be less than a predetermined value, the voltage detection unit enables a control signal.Type: GrantFiled: July 27, 2006Date of Patent: December 1, 2009Assignee: Au Optronics Corp.Inventors: Po-Tang Hsu, Meng-Chang Tsai
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Publication number: 20090262064Abstract: An LCD and a backlight module driving device and a method thereof are provided. The method is adapted to drive at least one backlight unit in a backlight module. The backlight unit is used for supplying a surface light source to an Nth area pixel of the LCD panel, where N is a positive integer. The method includes the following steps of first calculating a time of the Nth area pixel under a stable state in a frame period and then providing a control signal to drive the backlight unit when the Nth area pixel is under the stable state in the frame period.Type: ApplicationFiled: June 9, 2008Publication date: October 22, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Yueh-Han Li, Po-Tang Hsu, Chien-Ming Ko, Ching-Chou Yu