Patents Assigned to Quanta Display Inc.
-
Patent number: 6913957Abstract: A method of fabricating a thin film transistor array substrate is described. A gate and a scan line electrically connected to the gate are formed on a substrate. A gate insulating layer is formed over the substrate. A patterned channel layer and a patterned ohmic contact layer are formed on the gate insulating layer above the gate. A transparent conductive layer and a metal layer are formed and patterned to define a source/drain region, a data line and a pixel region. A passivation layer exposing the metal layer on the pixel region is formed over the substrate. The metal layer exposed by the passivation layer is removed to expose the transparent conductive layer on the pixel region, using the passivation layer as a photomask, so as to form a pixel electrode. Since the process only needs four photomasks, the process cost can be reduced.Type: GrantFiled: August 19, 2003Date of Patent: July 5, 2005Assignee: Quanta Display Inc.Inventor: Ko-Chin Yang
-
Patent number: 6914588Abstract: A two TFT pixel structure liquid crystal display includes a first and a second scan line, a first and a second signal line, and a pixel. The pixel includes a pixel electrode and a first and a second transistor. A gate of the first and the second transistor is electrically connected to the first and the second scan line respectively. A source of the first and the second transistor is electrically connected to the first and the second signal line respectively. The drains of the first and the second transistor are electrically connected to the pixel electrode. The ratio of the channel width to the channel length of the first transistor is less than the ratio of the channel width to the channel length of the second transistor.Type: GrantFiled: April 11, 2003Date of Patent: July 5, 2005Assignee: Quanta Display Inc.Inventor: Chu-Hung Tsai
-
Patent number: 6910782Abstract: A combined frame for housing at least a lamp with one end connected to a power cord is provided. The combined frame comprises a lower frame and an upper frame. The lamp is positioned between the upper frame and the lower frame. The lower frame has an angled cable groove that encloses the power cord from the lamp. One end of the power cord is exposed outside the lower frame. The upper frame is positioned over the lower frame. Through the angled cable groove, the power cord is prevented from sliding in the axial direction of the lamp by any unintended external force and hence pulling power cable away from the lamp. This invention also provides a back light module comprising a light-guiding plate and the aforementioned lamp and combined frame.Type: GrantFiled: June 20, 2003Date of Patent: June 28, 2005Assignee: Quanta Display Inc.Inventor: Yi-Chun Ho
-
Publication number: 20050121429Abstract: An apparatus for inspecting and repairing a circuit defect is disclosed, which has a base; a substrate-supporting platform mounted on the base; a contact inspection module having at least one contact probe and a first driving-system that drives at least one contact probe to contact the circuits formed on the glass substrate and thereby inspect a circuit defect; a non-contact inspection module having at least one non-contact sensor and a second driving-system that drives at least one non-contact sensor to inspect the circuit defect in a non-contact manner; and a laser repair module having a laser head and a third driving-system that drives the laser head to go to the circuit defect and repair the circuit defect. A method for inspecting and repairing a circuit defect is also disclosed therewith.Type: ApplicationFiled: May 28, 2004Publication date: June 9, 2005Applicant: Quanta Display Inc.Inventors: Kuo-Ting Liao, Kuo-Kuei Lee, Chun Chu
-
Publication number: 20050122738Abstract: A frame structure used in a backlight module is disclosed. The frame structure includes an upper frame and a lower frame. By combining the T-shape hook of the upper frame and the corresponding groove of the lower frame, the components of the backlight module, such as the linear light source, the light source fixer, the light guide, the upper diffusing plate, the reflective plate, the lower diffusing plate, and the prism plate can be well assembled. Therefore, an improved positioning and fixing efficacy is provided.Type: ApplicationFiled: May 10, 2004Publication date: June 9, 2005Applicant: Quanta Display Inc.Inventors: Szu-Han Li, Yung-Pin Chuang, Li-Huang Lu, Deng-Kuen Shiau
-
Publication number: 20050124088Abstract: A method for manufacturing a thin film transistor array substrate is disclosed. A first metal layer, a gate insulating layer, a semiconductor layer, an ohmic contact layer and a second metal layer are sequentially formed over a substrate, and a first patterning process is carried out to define a source/drain electrodes area, a scan line area, a data line area, a terminal contact area and a pixel area. An interlayer insulating layer is formed, and a second patterning process is implemented to form a source/drain contact hole, a scan line contact hole and a terminal contact hole. A transparent conductive layer, a third metal layer and a passivation layer are sequentially formed over the substrate to achieve electrical contacts among above-mentioned contact holes, and a third patterning process is then implemented to form a thin film transistor, a scan line, a data line, a terminal contact and a pixel electrode.Type: ApplicationFiled: June 29, 2004Publication date: June 9, 2005Applicant: Quanta Display Inc.Inventor: Hung-De Chen
-
Patent number: 6869833Abstract: A method for fabricating a TFT having the steps of providing a substrate; sequentially depositing a transparent conductive layer, a first metal layer, a first insulating layer, a semiconductor layer, and a second metal layer on the substrate; performing a first photo-etching-process (PEP) to remove portions of the deposited layers to form a source electrode and a drain electrode and define a channel region, the first PEP includes a first halftone photolithograph process; depositing a second insulating layer and performing a second PEP to form a plurality of contact holes; and depositing a third metal layer and performing a third PEP to remove portions of the third metal layer.Type: GrantFiled: March 16, 2004Date of Patent: March 22, 2005Assignee: Quanta Display Inc.Inventor: Hung-De Chen
-
Patent number: 6861671Abstract: A thin film transistor liquid crystal display (TFT-LCD) and fabrication method thereof. The fabrication method includes depositing a first metal layer on a transparent substrate, patterning the first metal layer to form at least two adjacent gate electrodes, forming a gate insulating layer on the gate electrodes, forming a semiconductor layer on the insulating layer, patterning the semiconductor layer into a predetermined shape, depositing a second metal layer on the transparent substrate, patterning the second metal layer to form a source/drain electrode layer, and depositing an insulating layer on the transparent substrate. A contact hole is defined via the insulating layer, source/drain electrode layer, and gate insulating layer, exposing a part of the surface of transparent substrate between the adjacent gate electrodes. A transparent conductive layer is deposited on the transparent substrate, and a light-shielding matrix is formed directly above the contact hole.Type: GrantFiled: August 25, 2003Date of Patent: March 1, 2005Assignee: Quanta Display Inc.Inventor: Maw-Song Chen
-
Publication number: 20050007521Abstract: The present invention relates to a liquid crystal display device, which comprises a top polarizer and a lower polarizer, a liquid crystal cell, and a back light assemble, the device is characterized in that the lower polarizer is subjected to an anti-glaring treatment while the top polarizer is not. In the liquid crystal display device (LCD) according to the present invention, since the top polarizer is not subjected to the anti-glaring treatment, the prepared device exhibits a vision property similar to that of cathode ray tube (CRT) display device without brownish nor glittering problems associated with conventional LCD in which a top polarizer is subjected to anti-glaring treatment.Type: ApplicationFiled: September 16, 2003Publication date: January 13, 2005Applicant: Quanta Display Inc.Inventors: Pei-Hsun Wu, Ying-Che Huang, Yu-Han Pan
-
Patent number: 6819385Abstract: A transflective pixel structure, suitably formed on a substrate, having a scan line formed on the substrate, a gate dielectric layer formed on the substrate and covering the scan line, a data line, formed on the gate dielectric layer, a protection layer formed on a part of the gate dielectric layer and covering the data line, a transparent pixel electrode formed on the protection layer, a reflective pixel electrode formed on the exposed gate dielectric layer, and a double-drain thin-film transistor formed on the substrate. The double-drain thin-film transistor has a gate, a channel layer, a source region and two drain regions. The source region is electrically connected to the data line, the drain regions are coupled to the transparent and reflective pixel electrodes, respectively, and the gate is electrically connected to the scan line.Type: GrantFiled: January 30, 2003Date of Patent: November 16, 2004Assignee: Quanta Display Inc.Inventor: An-Hsu Lu
-
Patent number: 6755548Abstract: A backlight module for an LCD device. The backlight module includes a glass panel, a light guide plate and an illumination assembly. The backlight module provides an improved structure and arrangement of the illumination assembly. Thus, illumination of the LCD device is not adversely affected and the weight and thickness of the backlight module are reduced, as are the weight and thickness of the LCD device itself.Type: GrantFiled: September 13, 2002Date of Patent: June 29, 2004Assignee: Quanta Display Inc.Inventor: Yi-Chun Ho
-
Patent number: 6549262Abstract: An in-line operation for manufacturing liquid crystal displays. First, a liquid crystal cell is pulled out from a first stocking region and placed inside a processing station by a loader. The liquid crystal cell is shunt, beveled and corner-cut by a shunt and bevel unit inside the processing station. The liquid crystal cell is next transferred directly to a brush-washing unit for cleaning. After cleaning, the semi-finished product is directly transferred from a linked stocking region to an affixing unit for attaching a polarizer onto the liquid crystal cell. The semi-finished product is transferred to a second stocking region by an unloader. Sample inspection can be carried out when the semi-finished product is still within the linked stocking region.Type: GrantFiled: August 8, 2002Date of Patent: April 15, 2003Assignees: Quanta Display Inc., Sharp CorporationInventors: Lin Yen Hsiu, Ishii Mikiyasu
-
Patent number: 6498637Abstract: An in-line operation for manufacturing liquid crystal displays. First, a liquid crystal cell is pulled out from a first stocking region and placed inside a processing station by a loader. The liquid crystal cell is shunt, beveled and corner-cut by a shunt and bevel unit inside the processing station. The liquid crystal cell is next transferred directly to a brush-washing unit for cleaning. After cleaning, the semi-finished product is directly transferred from a linked stocking region to an affixing unit for attaching a polarizer onto the liquid crystal cell. The semi-finished product is transferred to a second stocking region by an unloader. Sample inspection can be carried out when the semi-finished product is still within the linked stocking region.Type: GrantFiled: February 6, 2001Date of Patent: December 24, 2002Assignee: Quanta Display Inc.Inventors: Lin Yen Hsiu, Ishii Mikiyasu