Patents Assigned to Chi Mei Optoelectronics Corporation
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Publication number: 20080062354Abstract: A liquid crystal display (LCD) panel and a fabricating method thereof are described. First, a first substrate and a second substrate are provided. A liquid crystal monomer layer is then formed on the surface of at least one of the first and second substrates. Next, a curing step is performed to the liquid crystal monomer layer to induce a polymerization reaction, so as to form a liquid crystal polymer layer. Thereafter, the first and second substrates are assembled and a liquid crystal layer is filled between the first and second substrates.Type: ApplicationFiled: February 2, 2007Publication date: March 13, 2008Applicants: TAIWAN TFT LCD ASSOCIATION, CHUNGHWA PICTURE TUBES, LTD., AU OPTRONICS CORPORATION, HANNSTAR DISPLAY CORPORATION, CHI MEI OPTOELECTRONICS CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TPO DISPLAYS CORP.Inventors: Tsan-Yu Ho, Ding-Jen Chen, Hsin-Chun Chiang, Mei-Ju Lee, Bang-Hao Wu
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Publication number: 20080057631Abstract: A manufacturing method of an active layer of a thin film transistor is provided. The method includes following steps. First a substrate is provided, and a semiconductor precursor solution is then prepared through a liquid process. Thereafter, the semiconductor precursor solution is provided on the substrate to form a semiconductor precursor thin film. After that, a light source is used to irradiate the semiconductor precursor thin film to remove residual solvent and allow the semiconductor precursor thin film to produce semiconductor property, so as to form a semiconductor active layer.Type: ApplicationFiled: December 22, 2006Publication date: March 6, 2008Applicants: TAIWAN TFT LCD ASSOCIATION, CHUNGHWA PICTURE TUBES, LTD., AU OPTRONICS CORPORATION, HANNSTAR DISPLAY CORPORATION, CHI MEI OPTOELECTRONICS CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TPO DISPLAYS CORP.Inventors: Hsiang-Yuan Cheng, Shin-Chuan Chiang, Shih-Hsiang Lai, Chin-Chih Yu, Bor-Chuan Chuang
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Publication number: 20080057202Abstract: A method of fabricating of a metal line by a wet process is provided. A catalytic adhesive layer is formed on an insulating substrate. A fist metal layer is formed by an electoless plating process, and then, a second metal layer is formed by an electoless plating process or an electoplating process. The first and the second metal layers are patterned to form a metal line.Type: ApplicationFiled: November 21, 2006Publication date: March 6, 2008Applicants: TAIWAN TFT LCD ASSOCIATION, CHUNGHWA PICTURE TUBES, LTD., AU OPTRONICS CORPORATION, HANNSTAR DISPLAY CORPORATION, CHI MEI OPTOELECTRONICS CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TPO DISPLAYS CORP.Inventors: CHIEN-WEI WU, SHUO-WEI LIANG, WAN-CHI CHEN, CHENG-TZU YANG, SAI-CHANG LIU, PO-CHIU CHEN, MIN-CHUAN WANG, YUNG-CHIA KUAN
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Publication number: 20080023832Abstract: A contact structure including a contact pad, a polymer bump and a conductive layer is provided in the present invention. The contact pad is disposed on a substrate. The polymer bump is disposed on the contact pad. The conductive layer covers the polymer bump and extends to the outside of the polymer bump. The portion of the conductive layer extending to the outside of the polymer bump serves as a test pad. The invention further discloses a manufacturing method of a contact structure. First, a substrate is provided having a contact pad already formed thereon. Then, a polymer bump is formed on the contact pad and a conductive layer is formed on the polymer bump. The conductive layer covers the polymer bump and extends to the outside of the polymer bump. The portion of the conductive layer extending to the outside of the polymer bump serves as a test pad.Type: ApplicationFiled: June 13, 2007Publication date: January 31, 2008Applicants: TAIWAN TFT LCD ASSOCIATION, CHUNGHWA PICTURE TUBES, LTD., AU OPTRONICS CORPORATION, HANNSTAR DISPLAY CORPORATION, CHI MEI OPTOELECTRONICS CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TPO DISPLAYS CORP.Inventor: Shyh-Ming Chang
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Publication number: 20070290964Abstract: An apparatus includes a display panel having pixels, and a timing controller that uses a frame rate control look-up table to generate more gray scale levels than available from a data driver. The timing controller uses the increased number of gray scale levels to compensate distortions in luminance across the display panel due to decreases in signal strengths of scan signals transmitted on scan lines of the display panel.Type: ApplicationFiled: April 16, 2007Publication date: December 20, 2007Applicant: Chi Mei Optoelectronics CorporationInventor: YING-WEN YANG
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Publication number: 20070275311Abstract: A method includes exposing a photo-resist layer using a first exposure machine that has a first resolution to cause the photo-resist layer to have an exposed portion and an un-exposed portion. The photo-resist layer is exposed using a second exposure machine that has a second resolution to further expose the un-exposed portion of the photo-resist layer, the first resolution being different from the second resolution.Type: ApplicationFiled: March 2, 2007Publication date: November 29, 2007Applicant: CHI MEI OPTOELECTRONICS CORPORATIONInventor: Cheng-Chi Wang
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Publication number: 20070189042Abstract: A backlight module includes a metal back plate having a front surface, an insulating layer disposed on the front surface of the metal back plate, a metal layout layer disposed on the insulating layer, the metal layout layer including signal lines, and at least one light emitting diode coupled to the signal lines of the metal layout layer.Type: ApplicationFiled: February 7, 2007Publication date: August 16, 2007Applicant: CHI MEI OPTOELECTRONICS CORPORATIONInventors: Wei-Ming Pai, Wen-Chin Lan, Wen-Tsung Lin
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Publication number: 20070159441Abstract: A flat panel display includes a plurality of pixel circuits, each pixel circuit including a switch and a storage capacitor, in which the storage capacitor receives pixel data from a data line when the switch is turned on. A scan driver controls the switches of the pixel circuits, in which the scan driver turns on a first switch of a first pixel circuit for a first length of time within a frame period, and turns on a second switch of a second pixel circuit for a second length of time within the frame period, the first length of time being different from the second length of time.Type: ApplicationFiled: December 22, 2006Publication date: July 12, 2007Applicant: Chi Mei Optoelectronics CorporationInventors: Ying-Wen Yang, Yung-Li Huang
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Patent number: 7239299Abstract: A driving circuit of a liquid crystal display device includes a substrate, at least two driver integrated circuit (IC) chips located on the substrate, and an impedance device electrically connected between the two driver IC chips for reducing a difference between respective input voltages being input into the two driver IC chips.Type: GrantFiled: October 24, 2003Date of Patent: July 3, 2007Assignee: Chi Mei Optoelectronics CorporationInventors: Yuan-Liang Wu, Hsin-Ta Lee, Wen-Chieh Lin
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Patent number: 7235934Abstract: A method for controlling operations of a backlight unit of a liquid crystal display (LCD) is disclosed. The LCD includes a LCD panel and the backlight unit. The LCD panel has a plurality of display units. The backlight unit is placed behind the LCD panel and has a plurality of illumination devices for providing light to the LCD panel. The method includes: (a) keeping at least two of the illumination devices turned on at all times; (b) turning off one of the illumination devices every predetermined time interval; and (c) turning on one of the illumination devices every predetermined time interval.Type: GrantFiled: June 15, 2005Date of Patent: June 26, 2007Assignee: Chi Mei Optoelectronics CorporationInventors: Hsin-Cheng Hung, Ming-Ta Yang
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Publication number: 20070139340Abstract: A flat panel display includes pixel circuits, a signal divider for associating portions of the image signal with corresponding portions of the pixel circuits, and timing controller circuitry for receiving the portions of the image signal and outputting corresponding sets of control signals and pixel data, the timing controller circuitry outputting the sets in parallel. The flat panel display includes groups of data drivers, each group for receiving respective sets of control signals and pixel data from the timing controller circuitry and driving corresponding pixel circuits, different groups receiving the sets in parallel.Type: ApplicationFiled: October 18, 2006Publication date: June 21, 2007Applicant: Chi Mei Optoelectronics CorporationInventors: Wen-Tsung Lin, Yung-Li Huang, Ying-Wen Yang
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Patent number: 7230596Abstract: An active organic electroluminescence display panel module comprising a substrate, a plurality of organic light-emitting devices, a light-emitting device driving unit and a temperature sensor unit are provided. The light-emitting device driving unit is electrically connected to the organic light-emitting devices for driving them. The temperature sensor unit is disposed on the substrate for sensing the temperature of the active organic electroluminescence display panel. The temperature sensor unit is also electrically connected to the light-emitting device driving unit for providing a signal to the light-emitting device driving unit in response to the sensed temperature. Accordingly, the light-emitting device driving unit can adjust the driving voltage of the organic light-emitting devices in the active organic electroluminescence display panel to reduce overall power consumption and provide an accurate grayscale to improve the quality of displayed images.Type: GrantFiled: February 18, 2005Date of Patent: June 12, 2007Assignee: Chi Mei Optoelectronics CorporationInventors: Hong-Ru Guo, Keng-Chu Lin, Chen-Chung Yang
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Publication number: 20070126006Abstract: A display includes a thin film transistor, a repair structure for repairing a defect in a signal line coupled to the thin film transistor, the repair structure including a first repair metal layer and a second repair metal layer. The transistor includes a gate electrode, a source electrode, and a drain electrode. A dielectric layer is disposed above the thin film transistor and the repair structure, the dielectric layer defining a repair opening to expose the second repair metal layer, the dielectric layer also defining a contact window that exposes at least one of the source and drain electrodes. A floating electrode is electrically connected to the second repair metal layer through the repair opening, the floating electrode being electrically floated.Type: ApplicationFiled: February 5, 2007Publication date: June 7, 2007Applicant: CHI MEI OPTOELECTRONICS CORPORATIONInventor: Lih-Nian Lin
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Patent number: 7227185Abstract: A thin film transistor (TFT) liquid crystal display (LCD) panel, its array substrate, and its manufacturing method. Color filters are integrated on the TFT array, and color filter stacks are formed on the thin film transistors to replace a black matrix, thereby reducing manufacturing time and costs. The color filter stacks can be placed at the border of the display area of the panel to reduce light leakage. The border of the display area has a liquid crystal injection hole. To allow the size of the liquid crystal injection hole to be increased, and to reduce the light leakage at the hole, color filter blocks and overlapping metal layers can be used at the border of the display area. The color filter stacks and other dielectric layers need to be away from the welding points of repair structures to prevent dielectric layer bursts during a repair process. Storage capacitors can use the feature described above so that the color filters are positioned away from the overlapping portions.Type: GrantFiled: July 21, 2004Date of Patent: June 5, 2007Assignee: Chi Mei Optoelectronics CorporationInventor: Lih-Nian Lin
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Patent number: 7212259Abstract: A liquid crystal display includes a lower substrate, an upper substrate positioned parallel with the lower substrate, and a plurality of pixel units between the lower substrate and the upper substrate. Each pixel unit includes an upper transparent electrode, a liquid crystal layer, a lower transparent electrode, and a color filter with recess structures.Type: GrantFiled: September 30, 2003Date of Patent: May 1, 2007Assignee: Chi Mei Optoelectronics CorporationInventor: Jui-Mei Hsu
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Patent number: 7161293Abstract: An organic electroluminescent display apparatus and method for manufacturing same is disclosed; the method prevents the anode and the cathode from defects and short circuit, and with the suitable geometry of the electrical insulation ramparts, the mechanical properties of the cathode insulating ramparts are increased such that the adhesion between the cathode insulating ramparts and the substrate is enhanced.Type: GrantFiled: October 16, 2003Date of Patent: January 9, 2007Assignees: Chi Mei Optoelectronics Corporation, Kyocera CorporationInventors: Chia-Tin Chung, Su-Jen Chang, Andrea Hwang, Chen-Ze Hu
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Patent number: 7145537Abstract: A driving device for driving pixels of a display from a first gray level to a second gray level. The first memory stores a first voltage data making the pixel display the first gray level. The second memory stores a driving voltage table recording dynamic driving voltages corresponding to predetermined gray level switching, respectively. The controller uses the dynamic driving voltage to drive the pixel. The dynamic driving voltage is selected from the driving voltage table according to the first voltage data of the first memory and a second voltage data provided by an outside circuit and determining the second gray level that the pixel will display.Type: GrantFiled: March 28, 2003Date of Patent: December 5, 2006Assignee: Chi Mei Optoelectronics CorporationInventor: Li-Yi Chen
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Patent number: 7129923Abstract: An active matrix display device having a display region consisting of sub-pixels arrayed in a matrix fashion, the sub-pixels having switching elements, comprising a plurality of data and scan signal lines, and common voltage lines for sending signals and a reference voltage to the sub-pixels, test transistors, each of which is connected to one of the plurality of scan signal lines for sending test signals thereto, and a plurality of input terminals, each of which is connected to one of a plurality of the test transistors, wherein each gate of the test transistors and each of the common voltage lines are connected to one of the input terminals, the test transistors control inputs of the test signals to the sub-pixels.Type: GrantFiled: June 25, 2003Date of Patent: October 31, 2006Assignee: Chi Mei Optoelectronics CorporationInventor: Rung-Nan Lu
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Patent number: 7034905Abstract: A liquid crystal display panel is provided. The LCD panel has a first substrate having at least a conductive material layer thereon, a second substrate having at least a repair line positioned in a predetermined area, and a liquid crystal layer positioned between the first substrate and the second substrate. The predetermined area is underneath the first substrate excluding the portions having the conductive material layer, thus reducing RC delay of the repair line.Type: GrantFiled: June 18, 2003Date of Patent: April 25, 2006Assignee: Chi Mei Optoelectronics CorporationInventors: Wen-Jyh Sah, Chin-Cheng Chien
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Patent number: 7030866Abstract: A pixel structure of a display. A scanning electrode is provided to scan signals and a data electrode is used to provide data signals. Also, a first switch transistor comprises a first terminal for receiving the scanning signals and a second terminal for receiving the data signals, in which the first switch transistor outputs a switch signal in accordance with the scanning signal and the data signal. A display unit is coupled to the first switch transistor and outputs image data in accordance with the switch signal. A second switch transistor is coupled to the first switch transistor in which the second switch transistor becomes conductive according to the switch signal and a blanking signal provided by the exterior power so as to modify the image data.Type: GrantFiled: March 26, 2003Date of Patent: April 18, 2006Assignee: CHI MEI Optoelectronics CorporationInventor: Li-Yi Chen