Patents by Inventor Hsiao-Chung Cheng
Hsiao-Chung Cheng 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: 10692807Abstract: A chip-on-film (COF) package structure includes a first COF and a second COF. The first COF includes a first flexible substrate having a first external terminal and a first internal terminal opposite to each other, first outer leads disposed at the first external terminal, first inner leads disposed at the first internal terminal, and a first chip disposed between the first external terminal and the first internal terminal. The second COF includes a second flexible substrate having a second external terminal and a second internal terminal opposite to each other, second outer leads disposed at the second external terminal, second inner leads disposed at the second internal terminal, and a second chip disposed between the second external terminal and the second internal terminal. The first COF is partially overlapped with the second COF. A display device having the COF package structure is also provided.Type: GrantFiled: February 26, 2019Date of Patent: June 23, 2020Assignee: Au Optronics CorporationInventors: Chang-Hui Wu, Yu-Huei Jiang, Hsiao-Chung Cheng
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Publication number: 20200152553Abstract: A chip-on-film (COF) package structure includes a first COF and a second COF. The first COF includes a first flexible substrate having a first external terminal and a first internal terminal opposite to each other, first outer leads disposed at the first external terminal, first inner leads disposed at the first internal terminal, and a first chip disposed between the first external terminal and the first internal terminal. The second COF includes a second flexible substrate having a second external terminal and a second internal terminal opposite to each other, second outer leads disposed at the second external terminal, second inner leads disposed at the second internal terminal, and a second chip disposed between the second external terminal and the second internal terminal. The first COF is partially overlapped with the second COF. A display device having the COF package structure is also provided.Type: ApplicationFiled: February 26, 2019Publication date: May 14, 2020Applicant: Au Optronics CorporationInventors: Chang-Hui Wu, Yu-Huei Jiang, Hsiao-Chung Cheng
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Patent number: 9881573Abstract: A liquid crystal display having adaptive pulse shaping control mechanism includes a first gate driver for providing a first gate signal based on a first modulation voltage, a second gate driver for providing a second gate signal based on a second modulation voltage, a first pixel array unit for illustrating image according to the first gate signal, a second pixel array unit for illustrating image according to the second gate signal, a timing controller for performing a pulse compare operation over the first and second gate signals so as to generate a first shaping control signal and a second shaping control signal, a first gate pulse modulation unit for providing the first modulation voltage according to the first shaping control signal, and a second gate pulse modulation unit for providing the second modulation voltage according to the second shaping control signal.Type: GrantFiled: November 24, 2014Date of Patent: January 30, 2018Assignee: AU OPTRONICS CORP.Inventors: Meng-Sheng Chang, Hsiao-Chung Cheng, Tien-chin Huang
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Publication number: 20150077409Abstract: A liquid crystal display having adaptive pulse shaping control mechanism includes a first gate driver for providing a first gate signal based on a first modulation voltage, a second gate driver for providing a second gate signal based on a second modulation voltage, a first pixel array unit for illustrating image according to the first gate signal, a second pixel array unit for illustrating image according to the second gate signal, a timing controller for performing a pulse compare operation over the first and second gate signals so as to generate a first shaping control signal and a second shaping control signal, a first gate pulse modulation unit for providing the first modulation voltage according to the first shaping control signal, and a second gate pulse modulation unit for providing the second modulation voltage according to the second shaping control signal.Type: ApplicationFiled: November 24, 2014Publication date: March 19, 2015Inventors: Meng-Sheng Chang, Hsiao-Chung Cheng, Tien-chin Huang
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Patent number: 8982030Abstract: A gate output control method is adapted into a flat display having a plurality of gate drive integrated circuits. The method comprises: providing a gate control signal; providing a oblique control signal to oblique modulate the gate control signal for generating a gate control signal with oblique; modulating the gate control signal with oblique to obtain a modulated gate control signal; and outputting the modulated gate control signal to the gate drive integrated circuits. A falling edge of the modulated gate control signal comprises a oblique-varying period and a vertical-varying period. In the oblique-varying period, the modulated gate control signal firstly changes to a predetermined voltage in a first slope, and then changes in a second slope until the vertical-varying period. In the vertical-varying period, the modulated gate control signal changes vertically or nearly vertically.Type: GrantFiled: July 15, 2010Date of Patent: March 17, 2015Assignee: AU Optronics Corp.Inventors: Kai-Yuan Siao, Jian-Feng Li, Hsiao-Chung Cheng, Tsung-Hung Lee, Chao-Ching Hsu
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Patent number: 8928640Abstract: A liquid crystal display having adaptive pulse shaping control mechanism includes a first gate driver for providing a first gate signal based on a first modulation voltage, a second gate driver for providing a second gate signal based on a second modulation voltage, a first pixel array unit for illustrating image according to the first gate signal, a second pixel array unit for illustrating image according to the second gate signal, a timing controller for performing a pulse compare operation over the first and second gate signals so as to generate a first shaping control signal and a second shaping control signal, a first gate pulse modulation unit for providing the first modulation voltage according to the first shaping control signal, and a second gate pulse modulation unit for providing the second modulation voltage according to the second shaping control signal.Type: GrantFiled: November 23, 2011Date of Patent: January 6, 2015Assignee: AU Optronics Corp.Inventors: Meng-Sheng Chang, Hsiao-Chung Cheng, Tien-chin Huang
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Patent number: 8830279Abstract: A liquid crystal display having adaptive driving mechanism includes plural pixel array areas and a driving module. Each pixel array area has a plurality of pixels. The driving module includes a signal generation unit for generating grey-level signals corresponding to the pixels based on input image data, a weighting conversion unit for converting the grey-level signals corresponding to the pixels into a plurality of weightings, a weighting processing unit for generating a weighting sum by summing up the weightings corresponding to the pixel array area, an inversion-mode setting unit for setting a polarity inversion mode according to the weighting sum, and a data signal output unit. The data signal output unit is utilized for providing a plurality of data signals to be written into the pixel array area based on the polarity inversion mode.Type: GrantFiled: January 9, 2012Date of Patent: September 9, 2014Assignee: AU Optronics Corp.Inventors: Hsiao-Chung Cheng, Chao-Ching Hsu, Jen-Chieh Chen
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Patent number: 8791919Abstract: An autostereoscopic display device having touch sensing mechanism includes a display panel for illustrating images, a touch sensing panel for detecting touch events, a 2D/3D switching panel disposed between the display panel and the touch sensing panel, and a control unit. The 2D/3D switching panel has a substrate, a first electrode disposed on the substrate, a counter substrate, and a second electrode disposed on the counter substrate. The control unit is employed to provide a first control signal and a second control signal furnished to the first electrode and the second electrode respectively. The first control signal is switched between a first high voltage and a first low voltage in a gradual-shift manner. The second control signal is switched between a second high voltage and a second low voltage in a gradual-shift or rapid-shift manner.Type: GrantFiled: April 25, 2012Date of Patent: July 29, 2014Assignee: AU Optronics Corp.Inventors: Hsiao-Chung Cheng, Jen-Chieh Chen, Tzu-Hsien Chuang, Ming-Sheng Lai, Shih-Hsiung Huang
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Patent number: 8624887Abstract: A control circuit and a method for charge sharing are provided. The control circuit and method are applied to a flat panel display including a plurality of pixel units. The control circuit includes a power supply unit, a data driver, a first switch set, a second switch set, a second switch set, and a timing controller. The control method includes steps of: outputting a first control signal to optionally switch on the switches in the first switch set in a first duration to re-allocate charges stored in the plurality of pixel units; and outputting a second control signal to optionally switch on the switches in the second switch set in a second duration to discharge charges stored in the plurality of pixel units via the voltage output pin.Type: GrantFiled: August 26, 2011Date of Patent: January 7, 2014Assignee: AU Optronics Corp.Inventors: Meng-Sheng Chang, Hsiao-Chung Cheng
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Patent number: 8604846Abstract: An exemplary resetting circuit adapted for regulating a voltage on an output terminal of a shift register is disclosed. The resetting circuit includes a reset driving module and a reset module. The reset driving module is received with an enable signal to output a control voltage signal to an output terminal of the reset driving module. The reset module is electrically coupled to the output terminal of the shift register and the output terminal of the reset circuit driving module, and is controlled by the control voltage signal on the output terminal of the reset driving module to determine whether switching on an electrical path between the output terminal of the shift register and a gate-off voltage level.Type: GrantFiled: November 14, 2011Date of Patent: December 10, 2013Assignee: AU Optronics Corp.Inventors: Hsiao-Chung Cheng, Cheng-Han Huang, Meng-Sheng Chang
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Patent number: 8587620Abstract: The present invention provides a method for driving a liquid crystal display panel. The liquid crystal display panel has a plurality of pixels arranged in a matrix form and a plurality of data lines. The method includes generating gray level signals corresponding to the plurality of pixels according to input image data; determining whether the gray level values of the pixels in a same row corresponding to the plurality of data lines of a first color are all outside a first range; and when the gray level values of the pixels in the same row corresponding to the plurality of data lines of the first color are all outside the first range, controlling polarity of the gray level signals of the pixels in the same row corresponding to the plurality of data lines of the first color in a column inversion mode.Type: GrantFiled: December 19, 2011Date of Patent: November 19, 2013Assignee: AU Optronics Corp.Inventors: Hsiao-Chung Cheng, Jen-Chieh Chen, Chao-Ching Hsu
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Patent number: 8582039Abstract: A naked-eye type stereoscopic display including a display panel, a polarization switching panel, and a lens array is provided. The display panel provides an image having a first polarization state. The polarization switching panel and the lens array are disposed on a propagation path of the image, and the polarization switching panel is located between the lens array and the display panel. In addition, the polarization switching panel has at least one rescue line so as to lower the scrap rate of the polarization switching panel.Type: GrantFiled: February 20, 2012Date of Patent: November 12, 2013Assignee: Au Optronics CorporationInventors: Hsiao-Chung Cheng, Chun-Hsien Yeh, Jen-Chieh Chen, Chen-Lun Chiu, Chung-Ming Shen, Chien-Feng Chiu
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Publication number: 20130135541Abstract: A naked-eye type stereoscopic display including a display panel, a polarization switching panel, and a lens array is provided. The display panel provides an image having a first polarization state. The polarization switching panel and the lens array are disposed on a propagation path of the image, and the polarization switching panel is located between the lens array and the display panel. In addition, the polarization switching panel has at least one rescue line so as to lower the scrap rate of the polarization switching panel.Type: ApplicationFiled: February 20, 2012Publication date: May 30, 2013Applicant: AU OPTRONICS CORPORATIONInventors: Hsiao-Chung Cheng, Chun-Hsien Yeh, Jen-Chieh Chen, Chen-Lun Chiu, Chung-Ming Shen, Chien-Feng Chiu
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Publication number: 20130088470Abstract: A liquid crystal display having adaptive pulse shaping control mechanism includes a first gate driver for providing a first gate signal based on a first modulation voltage, a second gate driver for providing a second gate signal based on a second modulation voltage, a first pixel array unit for illustrating image according to the first gate signal, a second pixel array unit for illustrating image according to the second gate signal, a timing controller for performing a pulse compare operation over the first and second gate signals so as to generate a first shaping control signal and a second shaping control signal, a first gate pulse modulation unit for providing the first modulation voltage according to the first shaping control signal, and a second gate pulse modulation unit for providing the second modulation voltage according to the second shaping control signal.Type: ApplicationFiled: November 23, 2011Publication date: April 11, 2013Inventors: Meng-Sheng Chang, Hsiao-Chung Cheng, Tien-chin Huang
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Publication number: 20130033440Abstract: An autostereoscopic display device having touch sensing mechanism includes a display panel for illustrating images, a touch sensing panel for detecting touch events, a 2D/3D switching panel disposed between the display panel and the touch sensing panel, and a control unit. The 2D/3D switching panel has a substrate, a first electrode disposed on the substrate, a counter substrate, and a second electrode disposed on the counter substrate. The control unit is employed to provide a first control signal and a second control signal furnished to the first electrode and the second electrode respectively. The first control signal is switched between a first high voltage and a first low voltage in a gradual-shift manner. The second control signal is switched between a second high voltage and a second low voltage in a gradual-shift or rapid-shift manner.Type: ApplicationFiled: April 25, 2012Publication date: February 7, 2013Inventors: Hsiao-Chung Cheng, Jen-Chieh Chen, Tzu-Hsien Chuang, Ming-Sheng Lai, Shih-Hsiung Huang
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Patent number: 8325126Abstract: A liquid crystal display includes a gate driver, a control circuit and a charge-sharing circuit. The control circuit provides a charge-sharing signal according to the parasitic capacitances at a first output end and a second output end in the gate driver. The charge-sharing circuit generates a third clock signal and a fourth clock signal by performing charge-sharing on a first clock signal and a second clock signal according to the charge-sharing signal. The third clock signal includes a signal falling edge which descends from a high level to a first level, and the fourth clock signal includes a signal falling edge which descends from the high level to a second level. The gate driver outputs a first gate driving signal and a second gate driving signal respectively at the first and the second output end according the third or the fourth clock signal.Type: GrantFiled: December 28, 2009Date of Patent: December 4, 2012Assignee: AU Optronics Corp.Inventors: Hsiao-Chung Cheng, Chao-Ching Hsu, Mu-Lin Tung
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Publication number: 20120287170Abstract: A liquid crystal display having adaptive driving mechanism includes plural pixel array areas and a driving module. Each pixel array area has a plurality of pixels. The driving module includes a signal generation unit for generating grey-level signals corresponding to the pixels based on input image data, a weighting conversion unit for converting the grey-level signals corresponding to the pixels into a plurality of weightings, a weighting processing unit for generating a weighting sum by summing up the weightings corresponding to the pixel array area, an inversion-mode setting unit for setting a polarity inversion mode according to the weighting sum, and a data signal output unit. The data signal output unit is utilized for providing a plurality of data signals to be written into the pixel array area based on the polarity inversion mode.Type: ApplicationFiled: January 9, 2012Publication date: November 15, 2012Inventors: Hsiao-Chung Cheng, Chao-Ching Hsu, Jen-Chieh Chen
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Publication number: 20120262431Abstract: A half source driving display panel includes a first to a fourth data line, a plurality of pixels, and a plurality of gate lines including a first and a second gate line. The two pixels disposed between the first and the second gate line and between the first and the second data line are driven by one of the first and the second gate line, and so do the two pixels disposed between the first and the second gate line and between the third and the fourth data line. Two pixels disposed between the first and the second gate line and between the second and the third data line are driven by the other one of the first and the second gate line.Type: ApplicationFiled: January 18, 2012Publication date: October 18, 2012Applicant: AU OPTRONICS CORP.Inventors: Hsiao-Chung Cheng, Chao-Ching Hsu
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Publication number: 20120194569Abstract: The present invention provides a method for driving a liquid crystal display panel. The liquid crystal display panel has a plurality of pixels arranged in a matrix form and a plurality of data lines. The method includes generating gray level signals corresponding to the plurality of pixels according to input image data; determining whether the gray level values of the pixels in a same row corresponding to the plurality of data lines of a first color are all outside a first range; and when the gray level values of the pixels in the same row corresponding to the plurality of data lines of the first color are all outside the first range, controlling polarity of the gray level signals of the pixels in the same row corresponding to the plurality of data lines of the first color in a column inversion mode.Type: ApplicationFiled: December 19, 2011Publication date: August 2, 2012Inventors: Hsiao-Chung Cheng, Jen-Chieh Chen, Chao-Ching Hsu
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Publication number: 20120169386Abstract: An exemplary resetting circuit adapted for regulating a voltage on an output terminal of a shift register is disclosed. The resetting circuit includes a reset driving module and a reset module. The reset driving module is received with an enable signal to output a control voltage signal to an output terminal of the reset driving module. The reset module is electrically coupled to the output terminal of the shift register and the output terminal of the reset circuit driving module, and is controlled by the control voltage signal on the output terminal of the reset driving module to determine whether switching on an electrical path between the output terminal of the shift register and a gate-off voltage level.Type: ApplicationFiled: November 14, 2011Publication date: July 5, 2012Applicant: AU OPTRONICS CORP.Inventors: Hsiao-Chung CHENG, Cheng-Han Huang, Meng-Sheng Chang