Patents Assigned to Au Optronics Corp.
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Patent number: 7382350Abstract: A device and method for adjusting backlight brightness employed in a display. The device has a buffer, a counter, and a comparator. The buffer receives and stores an image data of a frame. The counter receives the image data and obtains an image-loading value of the image data. The comparator is coupled to the counter and compares the image-loading value with a preset image-loading value. The comparator outputs a control signal indicating the comparison result to a backlight module to adjust the brightness of the backlight module.Type: GrantFiled: October 26, 2004Date of Patent: June 3, 2008Assignee: AU Optronics Corp.Inventors: Jih-Fon Huang, Huan-Hsin Li
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Patent number: 7378303Abstract: A method for fabricating a thin film transistor is provided. A conductive layer is formed on a substrate. A patterned mask is formed on the conductive layer to cover a predetermined thin film transistor (TFT) area, and at least one portion of the conductive layer exposed by the patterned mask are removed. A laser is applied to form a laser hole in the patterned mask to expose a portion of the conductive layer and the laser hole substantially corresponds to a channel region of the predetermined TFT area. The exposed conductive layer is etched to form source and drain electrodes on opposite sides of the channel region.Type: GrantFiled: August 29, 2006Date of Patent: May 27, 2008Assignee: AU Optronics Corp.Inventors: Chih-Hung Shih, Ta-Wen Liao, Han-Tu Lin, Feng-Yuan Gan
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Patent number: 7377680Abstract: A light spreading device and a backlight module utilizing the same. The backlight module includes a light guide, a plurality of point lights, and a plurality of light spreading devices. The light guide includes an entrance surface. The point lights are disposed near the entrance surface. Each light spreading device, corresponding to one of the point lights, is disposed between the light guide and the corresponding point light.Type: GrantFiled: May 22, 2006Date of Patent: May 27, 2008Assignee: AU Optronics Corp.Inventors: Jing-Huan Liao, Mei-Fen Lin, Pang-Hsuan Liu, Chih-Lin Wang
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Patent number: 7377678Abstract: A backlight module including a diffuser, a reflector, a side light source, a prism lens and a TIR (total internal reflection) lens is disclosed. The reflector is disposed under the diffuser. The side light source is disposed on a side between the diffuser and the reflector. The prism lens is disposed between the side light source and the reflector. The TIR lens is disposed on a bottom of the diffuser and adjacent to the side light source.Type: GrantFiled: May 27, 2005Date of Patent: May 27, 2008Assignee: AU Optronics Corp.Inventors: Jyh-Haur Huang, Chih-Kuang Chen, Ko-Chia Kao
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Publication number: 20080117200Abstract: A gate modulation circuit is provided. A comparator compares a triangular wave voltage of a capacitor with a second reference voltage. If the triangular wave voltage of the capacitor exceeds the second reference voltage, a conduction path is turned off. A comparator controls desired discharge to a capacitor through a discharge resistor. Based on the discharge, power voltage (high level power voltage of the scanning driver) provided to the scanning driver is modulated, and outputted from the gate modulation circuit to the scanning driver as high level power voltage of the scanning driver.Type: ApplicationFiled: November 14, 2007Publication date: May 22, 2008Applicant: AU OPTRONICS CORP.Inventor: Hitoshi Nakatsuka
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Publication number: 20080116793Abstract: An organic electroluminescent device. The device comprises a substrate, an anode, an cathode, an electroluminescent structure, and a hole injection layer. The anode and the cathode opposite thereto are disposed on the substrate. The electroluminescent structure is disposed between the anode and the cathode. The hole injection layer is disposed between the anode and the electroluminescent structure and comprises a first sublayer comprising a p-type dopant and a second sublayer not comprising the p-type dopant, in which the first sublayer directly contacts the anode and the second sublayer directly contacts the electroluminescent structure.Type: ApplicationFiled: June 4, 2007Publication date: May 22, 2008Applicant: AU OPTRONICS CORP.Inventors: Chung-Chun Lee, Hsing-Chuan Li
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Patent number: 7374044Abstract: A cushion structure comprises a first fixing element, a second fixing element, a first cushion element, and a second cushion element. The first fixing element comprises a first board. The second fixing element comprises a second board and faces the first fixing element. The first cushion element is fixed on the first board and the second board near a side thereof. The first cushion element comprises a plurality of first spacers and first grooves. The second cushion element is fixed on the first board and the second board near another side thereof facing the first cushion element. The second cushion element comprises a plurality of second spacers and second grooves. The second grooves face the first grooves.Type: GrantFiled: September 19, 2005Date of Patent: May 20, 2008Assignee: Au Optronics Corp.Inventor: Chung-Kuan Ting
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Patent number: 7375724Abstract: A protection circuit of an LCD panel. The LCD panel includes a display cell coupled between a data electrode, a gate electrode and a common electrode. A switch includes a first terminal and a second terminal. The first terminal is coupled to the data electrode, the gate electrode or both. The switch is turned on when a voltage level of the first terminal or the second terminal exceeds a threshold voltage. An ESD protection circuit includes a capacitive load and a resistive load, coupled between the second terminal and the common electrode.Type: GrantFiled: June 10, 2004Date of Patent: May 20, 2008Assignee: Au Optronics Corp.Inventors: Bo-Ren Jiang, Chu-Yu Liu, Chung-Jen Chen Chiang, Kuei-Sheng Tseng, Lee-Hsun Chang
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Publication number: 20080111138Abstract: A pixel structure is disclosed. The pixel structure includes a substrate, a first data line having at least one end formed on the substrate, a first insulation layer overlying the first data line and exposing a part of the end of the first data line, a shielding electrode disposed on the first insulation layer and overlapped with the first data line, a second data line formed on the first insulation layer and electrically connected to the exposed end of the first data line, a second insulation layer overlying the shielding electrode and the second data line, and a pixel electrode formed on the second insulation layer and overlapped with the shielding electrode. The invention also provides a method for fabricating the pixel structure.Type: ApplicationFiled: March 28, 2007Publication date: May 15, 2008Applicant: AU OPTRONICS CORP.Inventors: Hsiang-Lin Lin, Liu-Chung Lee, Kuo-Yu Huang
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Publication number: 20080111961Abstract: The disclosed is a liquid crystal display panel having alignment protrusions with an appropriate optical density (OD) of about 0.3/?m to 3/?m, and preferably of about 0.8/?m to 1.3/?m. The invention solves problems such as light leakage in dark conditions caused by transparent alignment protrusions and mismatch caused by black alignment protrusions overlapping the alignment marks.Type: ApplicationFiled: July 19, 2007Publication date: May 15, 2008Applicant: AU OPTRONICS CORP.Inventors: Ming-Feng Tien, Wan-Hua Lu, Jenn-Jia Su, Ting-Jui Chang
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Publication number: 20080112188Abstract: A diffusion plate of a backlight structure and a display device using the same are provided. The diffusion plate is used in the backlight structure having several light emitting diodes. The diffusion plate includes a main body with many depression structures positioned on a surface of the main body. The surface faces the light emitting diodes. Each depression structure is positioned above the corresponding light emitting diode and includes an inclined surface. An inclined angle is formed between each inclined surface and a central axis of the corresponding light emitting diode for refracting the light emitted by the corresponding light emitting diode.Type: ApplicationFiled: August 15, 2007Publication date: May 15, 2008Applicant: AU OPTRONICS CORP.Inventors: Chih-Kuang Chen, Hsin-Wu Lin
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Publication number: 20080113461Abstract: A method for manufacturing a lower substrate of a liquid crystal display device is disclosed and more particularly, a method for manufacturing a color filter layer on a lower substrate is disclosed. This method is achieved by using a photosensitive insulating layer as a passivation layer or an overcoat of a thin film transistor to reduce the number of masks, or of photographic steps. The photosensitive insulating layer used in the method has the characteristics of both photoresist and passivation layers so as to protect a thin film transistor from moisture and oxygen. In addition, the number of masks, or of photographic steps used in this method can be further reduced by ink-jet printing a color filter layer or by half-tone mask technique.Type: ApplicationFiled: June 19, 2007Publication date: May 15, 2008Applicant: AU Optronics Corp.Inventors: Yi-Pin Tung, Chin-Kuo Ting
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Publication number: 20080112163Abstract: A backlight module for a liquid crystal display (LCD) device includes a bottom plate, a plurality light sources, a light-premixing unit, and a light-mixing unit. The light sources are mounted on the bottom frame. The light-premixing unit is located above the bottom frame. The light-premixing unit includes a first diffuser. The light-mixing unit is located at a distance above the light-premixing unit. The light-mixing unit includes a second diffuser. The backlight module can effectively reduce the thickness of and meet the slim-line requirement of the LCD.Type: ApplicationFiled: October 30, 2007Publication date: May 15, 2008Applicant: AU Optronics Corp.Inventors: Yung-Pin Chuang, Szu-Han Li, Ching-Fu Tien, Keng-Ju Liu, Cheng-Hua Tien, Tsung-Hsien Hsieh
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Publication number: 20080106690Abstract: A method for manufacturing a liquid crystal display device is disclosed, comprising the following steps: (a) providing a substrate having a transparent electrode layer and a first metal layer, wherein the transparent electrode layer is sandwiched in between the first metal layer and the substrate; (b) defining a patterned area having a thin film diode area and a pixel area by a first mask; (c) forming a first insulating layer and a second metal layer on the patterned area having the thin film diode area and the pixel area in sequence, wherein the first insulating layer is sandwiched in between the second metal layer and the first metal layer; and (d) defining the thin film diode area and the pixel area by a second mask, and removing the second metal layer, the first insulating layer, and the first metal layer on the pixel area to expose the transparent electrode layer.Type: ApplicationFiled: March 8, 2007Publication date: May 8, 2008Applicant: AU Optronics Corp.Inventors: Wei-Hung Kuo, Ko-Chin Yang, Weng-Bing Chou
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Publication number: 20080106905Abstract: A supporting structure is applied to a backlight module including several optical sheets. The supporting structure includes a fixing component and a supporting component. The fixing component has a through-hole and an opening connected to each other. The supporting component includes a supporting pin, a block, a plate and a protrusion. The supporting pin has a top end for supporting the optical sheets and a bottom end at which the block is disposed. The plate is disposed on the supporting pin. The protrusion is disposed on the plate and faces the bottom end. After the block goes through the through-hole and rotates an angle, the plate and the block respectively press against upper and lower surfaces of the fixing component for clamping the fixing component. The protrusion is engaged in the opening for positioning the supporting component, so that the supporting component is fixed onto the fixing component.Type: ApplicationFiled: June 12, 2007Publication date: May 8, 2008Applicant: AU OPTRONICS CORP.Inventors: Jing-Lin Zhang, Meng-Jia Hsiao
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Publication number: 20080106554Abstract: An organic light emitting diode (OLED) pixel circuit and a brightness control method thereof. When the voltage across the source and drain of the driving transistor is fixed, the brightness of the OLED achieves a predetermined brightness for a specific gray level (e.g. white level) as being controlled by the control voltage applied to the gate of the driving transistor.Type: ApplicationFiled: June 25, 2007Publication date: May 8, 2008Applicant: AU Optronics Corp.Inventors: Tze-chien Tsai, Li-wei Shih
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Publication number: 20080106902Abstract: A display includes a panel and a backlight module. The backlight module includes a reflective board, a shell, at least two lenses and a light source. The lenses are installed on the reflective board. The reflective board is installed on the shell. The light source is installed in the shell and the light from the light source passes through the lenses. Each lens includes a bottom portion on the reflective board and an extending portion protruding slantwise from the bottom portion. The extending portion includes a reflective surface opposite to the reflective board approximately. A light from the light source is reflected onto the reflective board via the reflective surface, and then reflected onto the panel via the reflective board.Type: ApplicationFiled: August 28, 2007Publication date: May 8, 2008Applicant: AU OPTRONICS CORP.Inventors: Ci-Guang Peng, Shen-Hong Chou
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Publication number: 20080107834Abstract: The invention provides a color filter substrate and a method for manufacturing the same, including a substrate, a plurality of color filters, and a plurality of banks. The banks separate the color filters, and the angle between the sidewall and the substrate is about 60° to 90°. The banks of the invention efficiently prevent cross-contamination of color materials, thereby improving the resolution of an LCD panel.Type: ApplicationFiled: April 30, 2007Publication date: May 8, 2008Applicant: AU OPTRONICS CORP.Inventors: Hui-Fen Lin, Shu-Chin Lee
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Publication number: 20080100761Abstract: A pixel structure of the present invention includes two metal plates and a transistor. The metal plates are electrically connected together. The gate of the transistor receives a scan signal. The drain of the transistor receives a data signal. The source of the transistor includes two extending portions. A store capacitor is formed between the two extending portions and the two metal plates. The two extending portions are plate structures.Type: ApplicationFiled: May 22, 2007Publication date: May 1, 2008Applicant: AU OPTRONICS CORP.Inventors: Yu-Hsin Ting, Ya-Chun Lee
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Publication number: 20080101085Abstract: A display device comprises a power supply module and a back-lit module. The power supply module provides power and the back-lit module comprises a plurality of light emitting diode packaging structure in series. At least one light emitting diode packaging structure comprises two lead frames, a light emitting diode unit, and a regulator. The light emitting diode unit is connected to the two lead frames and the connection forms a first current path. The regulator is connected to the two lead frames and the connection forms a second current path. When the light emitting diode operates normally, the current generated by the power passes through the first current path. Otherwise, the current passes through the second current path.Type: ApplicationFiled: April 23, 2007Publication date: May 1, 2008Applicant: AU OPTRONICS CORP.Inventors: Chieh-Hsiu Lin, Wu-Sheng Chi
