Patents by Inventor Yao-Hong Chien
Yao-Hong Chien 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: 8208113Abstract: A pixel structure including a substrate, a scan line, a data line, a common line, an active device, a pixel electrode, a passivation layer and a transition auxiliary electrode is provided. The scan line and the data line on the substrate intersect with each other to define a pixel region. The common line on the substrate is parallel to the scan line. The active device disposed within the pixel region is electrically connected to the scan line and the data line. The pixel electrode disposed within the pixel region is electrically connected to the active device. The passivation layer is between the data line and the pixel electrode. The transition auxiliary electrode is adjacent to the periphery of the pixel electrode and electrically connected to the common line through a contact hole of the passivation layer. The transition auxiliary electrode and the pixel electrode are made of the same film.Type: GrantFiled: January 20, 2010Date of Patent: June 26, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chih-Chieh Wang, Yao-Hong Chien, Xin-Xin Lin, Li-Shan Chen, Xuan-Yu Liu
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Patent number: 7968367Abstract: A fabricating method of a TFT array substrate includes following steps: providing a substrate having a pixel region and a bonding pad region surrounding the pixel region; forming a patterned polysilicon layer within the pixel region on the substrate; forming a first patterned insulating layer to cover the patterned polysilicon layer; forming a first patterned transparent conductive layer on the first patterned insulating layer; forming a first metal layer on the first patterned transparent conductive layer; forming a second patterned insulating layer to cover the first metal layer; forming a second patterned transparent conductive layer on the second patterned insulating layer; forming a second metal layer on the second patterned transparent conductive layer; forming a third patterned insulating layer to cover the second metal layer; and forming a third patterned transparent conductive layer on the third patterned insulating layer.Type: GrantFiled: August 12, 2010Date of Patent: June 28, 2011Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Yao-Hong Chien, Chih-Chieh Wang, Xuan-Yu Liu, Li-Shan Chen
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Publication number: 20100304525Abstract: A fabricating method of a TFT array substrate includes following steps: providing a substrate having a pixel region and a bonding pad region surrounding the pixel region; forming a patterned polysilicon layer within the pixel region on the substrate; forming a first patterned insulating layer to cover the patterned polysilicon layer; forming a first patterned transparent conductive layer on the first patterned insulating layer; forming a first metal layer on the first patterned transparent conductive layer; forming a second patterned insulating layer to cover the first metal layer; forming a second patterned transparent conductive layer on the second patterned insulating layer; forming a second metal layer on the second patterned transparent conductive layer; forming a third patterned insulating layer to cover the second metal layer; and forming a third patterned transparent conductive layer on the third patterned insulating layer.Type: ApplicationFiled: August 12, 2010Publication date: December 2, 2010Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Yao-Hong Chien, Chih-Chieh Wang, Xuan-Yu Liu, Li-Shan Chen
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Patent number: 7812352Abstract: A TFT array substrate is disclosed. In the pixel structure of the TFT array substrate, patterned transparent conductive layers are disposed under a first metal layer (M1) and a second metal layer (M2) and most areas of the M1 and M2 are substituted by the patterned transparent conductive layers. So, the pixel structure has high aperture ratio and large storage capacitance. Besides, a scan bonding pad on the TFT array substrate includes a first patterned transparent conductive layer (T1), the M1 and a third patterned transparent conductive layer (T3). The M1 is disposed on the T1, and the T3 is electrically connected to the T1 via a contact hole in the M1. So, the contact resistance of the scan bonding pad is small. The data bonding pad on the TFT array substrate has similar design. Moreover, fabricating methods of TFT array substrates are also provided.Type: GrantFiled: March 3, 2009Date of Patent: October 12, 2010Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Yao-Hong Chien, Chih-Chieh Wang, Xuan-Yu Liu, Li-Shan Chen
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Publication number: 20100118251Abstract: A pixel structure including a substrate, a scan line, a data line, a common line, an active device, a pixel electrode, a passivation layer and a transition auxiliary electrode is provided. The scan line and the data line on the substrate intersect with each other to define a pixel region. The common line on the substrate is parallel to the scan line. The active device disposed within the pixel region is electrically connected to the scan line and the data line. The pixel electrode disposed within the pixel region is electrically connected to the active device. The passivation layer is between the data line and the pixel electrode. The transition auxiliary electrode is adjacent to the periphery of the pixel electrode and electrically connected to the common line through a contact hole of the passivation layer. The transition auxiliary electrode and the pixel electrode are made of the same film.Type: ApplicationFiled: January 20, 2010Publication date: May 13, 2010Applicant: Chunghwa Picture Tubes, LTD.Inventors: CHIH-CHIEH WANG, Yao-Hong Chien, Xin-Xin Lin, Li-Shan Chen, Xuan-Yu Liu
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Patent number: 7684000Abstract: A pixel structure including a substrate, a scan line, a data line, a common line, an active device, a pixel electrode, a passivation layer and a transition auxiliary electrode is provided. The scan line and the data line on the substrate intersect with each other to define a pixel region. The common line on the substrate is parallel to the scan line. The active device disposed within the pixel region is electrically connected to the scan line and the data line. The pixel electrode disposed within the pixel region is electrically connected to the active device. The passivation layer is between the data line and the pixel electrode. The transition auxiliary electrode is adjacent to the periphery of the pixel electrode and electrically connected to the common line through a contact hole of the passivation layer. The transition auxiliary electrode and the pixel electrode are made of the same film.Type: GrantFiled: December 8, 2006Date of Patent: March 23, 2010Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chih-Chieh Wang, Yao-Hong Chien, Xin-Xin Lin, Li-Shan Chen, Xuan-Yu Liu
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Publication number: 20100001286Abstract: A TFT array substrate is disclosed. In the pixel structure of the TFT array substrate, patterned transparent conductive layers are disposed under a first metal layer (M1) and a second metal layer (M2) and most areas of the M1 and M2 are substituted by the patterned transparent conductive layers. So, the pixel structure has high aperture ratio and large storage capacitance. Besides, a scan bonding pad on the TFT array substrate includes a first patterned transparent conductive layer (T1), the M1 and a third patterned transparent conductive layer (T3). The M1 is disposed on the T1, and the T3 is electrically connected to the T1 via a contact hole in the M1. So, the contact resistance of the scan bonding pad is small. The data bonding pad on the TFT array substrate has similar design. Moreover, fabricating methods of TFT array substrates are also provided.Type: ApplicationFiled: March 3, 2009Publication date: January 7, 2010Applicant: Chunghwa Picture Tubes, LTD.Inventors: Yao-Hong Chien, Chih-Chieh Wang, Xuan-Yu Liu, Li-Shan Chen
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Publication number: 20080278646Abstract: A pixel including a transistor, a liquid crystal capacitor, a storage capacitor and a coupling capacitor is provided. The first end of the transistor is connected to a data line, the liquid crystal capacitor and the storage capacitor are coupled between the second end of the transistor and a common voltage, and the coupling capacitor is connected between the second end of the transistor and a select line. After a driving voltage is outputted to the liquid crystal capacitor and the storage capacitor by the data line, the select line inputs a pulse signal to the liquid crystal capacitor through the coupling capacitor. The pulse signal is capable of increasing the ability of the electric field for driving the liquid crystal so that the liquid crystal can still display normally in the bend state even though the lowest pixel voltage is lower than the critical voltage.Type: ApplicationFiled: March 25, 2008Publication date: November 13, 2008Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Yao-Hong Chien, Chih-Chieh Wang, Szu-Fen Chen, Jung-Chieh Cheng, Li-Shan Chen
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Publication number: 20080259235Abstract: A pixel circuit and a driving method thereof in a liquid crystal display (LCD) panel and an LCD are provided. One select line is added to the pixel circuit of the present invention. When the pixel circuit is in a holding state, a select signal is provided to the select line for pulling up the voltage level of the pixel electrode. Therefore, the insertion of the black frames into the images in the LCD panel and the LCD is completed by the present invention during one frame period.Type: ApplicationFiled: November 22, 2007Publication date: October 23, 2008Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Yao-Hong Chien, Chih-Chieh Wang, Szu-Fen Chen, Jung-Chieh Cheng
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Publication number: 20080084529Abstract: A pixel structure including a substrate, a scan line, a data line, a common line, an active device, a pixel electrode, a passivation layer and a transition auxiliary electrode is provided. The scan line and the data line on the substrate intersect with each other to define a pixel region. The common line on the substrate is parallel to the scan line. The active device disposed within the pixel region is electrically connected to the scan line and the data line. The pixel electrode disposed within the pixel region is electrically connected to the active device. The passivation layer is between the data line and the pixel electrode. The transition auxiliary electrode is adjacent to the periphery of the pixel electrode and electrically connected to the common line through a contact hole of the passivation layer. The transition auxiliary electrode and the pixel electrode are made of the same film.Type: ApplicationFiled: December 8, 2006Publication date: April 10, 2008Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Chih-Chieh Wang, Yao-Hong Chien, Xin-Xin Lin, Li-Shan Chen, Xuan-Yu Liu