Patents Assigned to Quanta Display Inc.
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Publication number: 20080170191Abstract: An apparatus for rubbing an alignment layer on a substrate is disclosed. The apparatus includes a platform to support the substrate; a conveyance unit incorporating the platform to convey the substrate in a predetermined direction; a rubbing roller located above the platform for rubbing the alignment layer on the substrate; a combing unit located at one side of the rubbing roller for contacting with the rubbing roller; and at least one vacuum suction unit located at one side of the platform to suck and remove the particles released from the rubbing. The combing unit serves to smoothen a rubbing cloth on the rubbing roller, with a result of low static electricity accumulation on the substrate and of a better alignment effect on the alignment layer.Type: ApplicationFiled: August 15, 2007Publication date: July 17, 2008Applicant: Quanta Display Inc.Inventors: Pin-Chun Wu, Chih-Chieh Chang, Chih-Hsiung Weng, Tsung-Yuan Chang
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Patent number: 7393786Abstract: A method for manufacturing copper wires on a substrate for a flat panel display device is disclosed. The method comprises following steps: providing a substrate; forming a seed layer on the surface; forming a patterned photoresist on the surface of the seed layer to expose a part of the seed layer; and plating a copper layer on the exposed part of the seed layer. As the copper layer is plated, an electrolyte solution comprises a sulfur-containing compound is used. The angle between the surface of the copper layer and the contact surface of the seed layer is greater than 0 degree and less than 90 degree. Through the method illustrated above, the film step-coverage in the following process can be improved, the generated voids in device can be reduced, the manufacturing steps can be simplified, and the complicated etching process can be avoided.Type: GrantFiled: June 5, 2006Date of Patent: July 1, 2008Assignee: Quanta Display Inc.Inventors: Shrane-Ning Jenq, Hung-Wei Li, Min-Sheng Chu, Chi-Chao Wan, Yung-Yun Wang, Po-Tsun Liu
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Patent number: 7390715Abstract: A method of fabricating an active layer thin film by a metal-chalcogenide precursor solution is provided, including the steps of: synthesizing a metal-chalcogenide precursor containing benzyl or benzyl derivative; dissolving the precursor in a solvent to produce a precursor solution, wherein a chalcogen element or compound can be added to the precursor solution to adjust the molar ratio of metal ion to chalcogen; and then applying the precursor solution onto a substrate in a specific coating manner, to form a film of the metal-chalcogenide after a curing process. Thereby, the existing method wherein an amorphous silicon active layer film is fabricated by plasma enhanced chemical vapor deposition (PECVD) is replaced.Type: GrantFiled: June 5, 2006Date of Patent: June 24, 2008Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corp., Quanta Display Inc., Hannstar Display Corp., Chi Mei Optoelectronics Corp., Industrial Technology Research Institute, Toppoly Optoelectronics Corp.Inventors: Chun-Yao Ou, Hua-Chi Cheng, Ming-Nan Hsiao, Bor-Chuan Chuang, Chao-Jen Wang
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Patent number: 7384169Abstract: A lighting device including a frame, at least one U-shaped fluorescent tube, a diffusing plate, and a prism sheet having a plurality of prisms and being positioned between the fluorescent tube and the diffusing plate with the prism apices aligned in the axial direction of the fluorescent tube. The prism sheet covers the bent portion of the fluorescent tube to eliminate uneven luminance.Type: GrantFiled: October 27, 2005Date of Patent: June 10, 2008Assignees: Quanta Display Inc., Quanta Display Japan Inc.Inventors: Mitsuhiro Wada, Tomohisa Tajiri
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Patent number: 7379132Abstract: A liquid crystal display with high contrast and little color difference between white plain color and black plain color is disclosed, in which in the color layers formed on an optically transparent substrate, the contrasts of red (R), green (G), and blue (B) CRR, CRG, and CRB have a relationship of 16×(CRR/CRG)?3>CRB/CRG>CRR/CRG, and the total contrast CRR, G, B calculated from the contrasts of color layers CRR, CRG, and CRB and the contrast of a polarizing plate CRPOL satisfy a relationship of CRR, G, B/CRPOL>0.11.Type: GrantFiled: October 25, 2005Date of Patent: May 27, 2008Assignees: Quanta Display Inc., Quanta Display Japan Inc.Inventors: Yuichi Nishkoji, Ruei-liang Luo, Hideki Matsukawa
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Publication number: 20080090003Abstract: A method of manufacturing a reflecting substrate in a liquid crystal display device is disclosed, comprising the steps of: (a) providing a substrate having a first metal layer, wherein the first metal layer is formed with at least one soft metal or the alloys thereof; and (b) forming an aluminum nitride layer on the first metal layer. The method of the present invention is capable of forming a rugged, shining, reflective layer on a transflective, or a reflection type TFT LCD with simple steps and low cost.Type: ApplicationFiled: December 6, 2007Publication date: April 17, 2008Applicant: Quanta Display Inc.Inventors: Ching-Hung Chen, Lung-Pao Shin, Ming-Yan Tsai
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Publication number: 20080043174Abstract: A method of manufacturing a reflecting substrate in a liquid crystal display device is disclosed, comprising the steps of: (a) providing a substrate having a first metal layer, wherein the first metal layer is formed with at least one soft metal or the alloys thereof; and (b) forming an aluminum nitride layer on the first metal layer. The method of the present invention is capable of forming a rugged, shining, reflective layer on a transflective, or a reflection type TFT LCD with simple steps and low cost.Type: ApplicationFiled: June 21, 2007Publication date: February 21, 2008Applicant: Quanta Display Inc.Inventors: Ching-Hung Chen, Lung-Pao Shin, Ming-Yan Tsai
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Publication number: 20080044935Abstract: A method for manufacturing a pixel electrode contact structure of a thin-film transistors liquid crystal display is disclosed. First, a transparent substrate having a first insulating layer thereon is provided. Afterward, a first metal layer and a second metal layer are sequentially formed on the substrate and then be patterned by a halftone technology and an etching process, wherein the second metal layer is removed within the pixel electrode contact area. In the meantime, the drain lines of the thin-film transistor comprising the first metal layer and the second metal layer are formed. Next, a patterned passivation layer is formed on the substrate. Finally, a pixel electrode layer directly connecting the first metal layers within the pixel electrode contact structure is formed on the substrate. This invention provides the pixel electrode contact structure with low contact resistance and prevents the current leakage from the drain line to the storage capacitor.Type: ApplicationFiled: October 23, 2007Publication date: February 21, 2008Applicant: Quanta Display Inc.Inventor: Wen-Yi Shyu
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Publication number: 20080030637Abstract: In the conventional manufacture method that has reduced the number of manufacture processes by forming semiconductor layers and source-drain wires for a channel-etch type insulating gate transistor in a single photo etching process using halftone exposure technology, the channel length increases when the photosensitive resin pattern used at above formation process of source-drain patterning is reduced. Hence the manufacture tolerance (margin) is small, and the yield decreases when the distance between the source wire and drain wire is shortened.Type: ApplicationFiled: April 23, 2007Publication date: February 7, 2008Applicants: Quanta Display Inc.Inventor: Kiyohiro Kawasaki
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Patent number: 7324173Abstract: A side fixing frame for a liquid crystal display device is provided. The side fixing frame has a U-shaped configuration and is provided with multiple engaging elements. The engaging elements of the side fixing frame couple with corresponding counterparts of a supporting frame used in a liquid crystal display device so as to fasten the side fixing frame with the supporting frame. Because of the U-shaped configuration design of the side fixing frame, the frame can attain the desired securing strength and reduce the materials needed for producing the side fixing frame and the production cost.Type: GrantFiled: March 17, 2004Date of Patent: January 29, 2008Assignee: Quanta Display Inc.Inventors: Szu-Han Li, Yung-Pin Chuang, Li-Huang Lu, Deng-Kuen Shiau
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Publication number: 20080007676Abstract: A liquid crystal display panel including an active device array substrate, an opposite substrate, a plurality of patterned electrodes, and a liquid crystal layer is provided. The active device array substrate includes a substrate, a plurality of scan lines, a plurality of data lines, and a plurality of pixel units. The substrate mentioned has a plurality of shots. The scan lines, data lines, and pixel units are all disposed on the substrate. Additionally, the opposite substrate is disposed above the active device array substrate, and the plurality of patterned electrodes is disposed on the opposite substrate. The liquid crystal layer is disposed between the patterned electrodes and the active device array substrate.Type: ApplicationFiled: August 31, 2006Publication date: January 10, 2008Applicant: Quanta Display Inc.Inventors: CHIA-HAO CHANG, Ju-Yu Lee
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Patent number: 7314344Abstract: The present invention relates to a substrate-transporting device, including a base, a substrate carrier unit and a shaft unit mounted between the base and the substrate carrier unit. The shaft unit has a supporting shaft and a shaft base to support and control rotation of the substrate carrier unit. The substrate carrier unit includes a bottom carrier seat connected to the supporting shaft, a plurality of first supporting components mounted on a surface of the bottom carrier seat, a top carrier seat having a plurality of vacuum suction nozzles and a plurality of second supporting components, and at least a retractable component sandwiched between the top carrier seat and the bottom carrier seat. The top carrier seat is used to affix and detect the substrate. The retractable component is capable of adjusting the distance between the top carrier seat and the bottom carrier seat.Type: GrantFiled: August 10, 2004Date of Patent: January 1, 2008Assignee: Quanta Display Inc.Inventors: Ching Chih Chen, Tai Hsing Lee
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Patent number: 7304713Abstract: A liquid crystal display (LCD) panel with marks for checking cutting precision by visual inspection is provided. A checkerboard mark is formed on an intersection of two adjacent cutting lines of the LCD panel. The checkerboard mark includes a pair of first-square marks in a diagonal relationship and a pair of second-square marks in a diagonal relationship. When completing cutting of the LCD panel, the cutting precision of the LCD panel can be checked by visually inspecting the distance between the square mark and the cutting line or the residue of the checkerboard mark. The checkerboard mark is suitable for various LCD panels' arrangement.Type: GrantFiled: August 27, 2004Date of Patent: December 4, 2007Assignee: Quanta Display Inc.Inventor: Hung Meng Yi
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Publication number: 20070242178Abstract: Development of 3-mask process to reduce the manufacturing cost of LCD-display device successively following 4-mask process. Opening formation process and pixel electrode formation process which is sequentially done following the opening formation process are treated with one photo-mask without using halftone exposure technology by forming source-drain wires comprising a low-resistance metal layer and a heat-resistant metal layer, the latter is capable of being removed with etching gas for etching gate insulating layer (and passivation insulating layer), giving protection means at least for the channel and the data line of the insulating gate transistor, forming openings in the insulating layers including the gate insulating layer with photosensitive resins having counter-taper cross sections, removing the exposed low-resistance metal in the openings, forming pixel electrode with the photosensitive resins as a lift-off material to lift off the conductive thin film for pixel electrode.Type: ApplicationFiled: August 9, 2006Publication date: October 18, 2007Applicants: Quanta Display Inc., Quanta Display Japan Inc.Inventors: Kiyohiro Kawasaki, Jia-Tsung Lee, Chien-Hung Chen
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Publication number: 20070222929Abstract: A method for manufacturing an alignment layer is provided, which includes the following steps. First, a substrate is provided. Next, an auxiliary layer is formed on the substrate. Then, an alignment solution is sprayed on the auxiliary layer through an inkjet printing process. The alignment solution includes an alignment material and a first solvent, and the auxiliary layer has the same polarity as the first solvent. Then, by performing a curing process, the alignment solution is cured to form an alignment layer. As mentioned above, the method for manufacturing an alignment layer may be applied to manufacture an alignment layer with preferred smoothness.Type: ApplicationFiled: September 20, 2006Publication date: September 27, 2007Applicant: Quanta Display Inc.Inventors: Yuan-Hung Tung, Chih-Jui Pan
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Publication number: 20070222934Abstract: A method for manufacturing a liquid crystal display device is disclosed. The method includes the steps of: forming multiple spacers having a cavity on the upper substrate or on the lower substrate; injecting adhesives or binders in the cavities of the spacers; and curing the adhesives or the binders in the cavities to bind the upper substrate and the lower substrate. Through the method illustrated above, the strength for combining these two substrates can be enhanced. Moreover, the uniformity of the gap inside the LCD panel, and the gravity mura resulted from the gravity can be improved. Therefore, the lifetime of the LCD can be extended.Type: ApplicationFiled: December 7, 2006Publication date: September 27, 2007Applicant: Quanta Display Inc.Inventors: Tai-Chi Huang, Yeong-Feng Wang
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Patent number: 7264365Abstract: A lamp positioning structure is disclosed. The lamp positioning structure is assembled on a display device and includes a fastening element mounted on a side plate of a rear plate. The lamp is curve-line-shaped and is mounted over the rear plate. Moreover, the lamp includes at least a curved section. Also, a display panel having a display area is assembled over the rear plate to cover the lamp. The curved section of the lamp is arranged in the display area without damaging the brightness uniformity nearby. In addition, two elastic arms are disposed on both lateral sides of the fastening element to abut against the curved section. Through the arrangement of the positioning structure, the breakage and the displacement of the lamp can be reduced or even prevented. The brightness of the curved section corresponding to the fastening element becomes more uniform and without definite dark spots.Type: GrantFiled: January 20, 2006Date of Patent: September 4, 2007Assignee: Quanta Display Inc.Inventors: Yi-Chen Kuo, Wei-Chih Chiu, Hsin-Chih Chen, Shr-Bin Lin, Yu-Chen Hsu, Kuang-Yu Fan
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Publication number: 20070188679Abstract: An optically compensated birefringence liquid crystal display (LCD) panel is provided, which includes an active device array apparatus, a color filter apparatus, and an optically compensated birefringence liquid crystal layer disposed between the active device array apparatus and the color filter apparatus. The color filter apparatus includes a substrate, a color filter array, a common electrode, a plurality of electrode lines, and an insulating layer. The color filter array is disposed on the substrate and has a black matrix and a color filter layer. The common electrode is disposed over the color filter array. The electrode lines are disposed over the common electrode. The insulating layer is disposed between the common electrode and the electrode lines. Accordingly, the problems of delay of data signal and overload of the driving circuit when a high voltage is applied to the control signal electrode of the conventional LCD panel are resolved.Type: ApplicationFiled: August 17, 2006Publication date: August 16, 2007Applicant: Quanta Display Inc.Inventor: Chi-Nan Liao
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Publication number: 20070184612Abstract: A method for assembling a liquid crystal display includes providing a thin-film-transistor substrate and a color-filter substrate having an active area and a non-active area, wherein plural spacers are formed in the in the active area of the color-filter substrate. At least two spacing-pads are individually formed in the surrounding non-active area at different locations adjacent to the edge of the active area, and the top of the spacing-pad is as high as the spacer in the active area. The color-filter substrate and the thin-film-transistor substrate are sealed.Type: ApplicationFiled: February 5, 2007Publication date: August 9, 2007Applicant: Quanta Display Inc.Inventors: Chia-Hao Chan, Ju-Yu Lee, Chin-Sung Lin, Chwan-Jye Lin
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Patent number: 7241648Abstract: Array substrates for use in TFT-LCDs and fabrication methods thereof. A transparent conductive layer, a first metal layer, a first insulating layer, a semiconductor layer, a second insulating layer and a sacrificial layer are sequentially formed on a substrate. With a first photomask, a photoresist layer with various thicknesses is formed on part of the sacrificial layer. Using the photoresist layer as an etching mask, a gate line having a gate, a channel layer on the gate, a gate pad at the end portion of the gate line, a pixel electrode and a source pad are defined. An insulating spacer is formed on the sidewalls of the gate and gate line. With a second photomask, a source line, source and drain are formed. The source pad connects the end portion of the source line. An array substrate is thus obtained with only two photomasks.Type: GrantFiled: February 28, 2005Date of Patent: July 10, 2007Assignee: Quanta Display Inc.Inventor: Chun-Ju Huang