Injecting Liquid Crystal Patents (Class 349/189)
  • Patent number: 7667816
    Abstract: A liquid crystal drop fill device by which liquid crystal panels of different sizes is easily obtained from a mother glass, and a method for drop filling liquid crystal by using the device is provided in order to increase utilization efficiency of the mother glass. The device 1 includes a stage 3 arranged to support a substrate 2, liquid crystal dispensers 4 and 5 arranged to drop fill liquid crystal on the substrate 2, a first moving unit 6 arranged to support the dispensers 4 and 5 movably in a Y-direction relative to the stage 3, and second moving units 7 and 8 arranged to support the dispensers 4 and 5 movably in an X-direction relative to the first moving unit 6, wherein the device 1 further includes a third moving unit 9 arranged to support the dispenser 5 to be further movable in the Y-direction relative to the second moving unit 8.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: February 23, 2010
    Assignee: Sharp Kabuhsiki Kaisha
    Inventor: Shinichi Hirato
  • Publication number: 20100039588
    Abstract: A method is provided for manufacturing an electrooptic cell, which includes two plates of optically transparent material and at least one thickness of a composite gel based on a smectic liquid crystal and on a polymer provided between the plates, wherein the gel is in a smectic phase at ambient temperature. The method includes injecting a mixture of a ferroelectric and/or anti-ferroelectric smectic liquid and a monomer between the plates, wherein the monomer content of the mixture is between 5 and 25% by weight. The mixture is heated to above its smectic phase/nematic phase transmission temperature so that the mixture is in the nematic phase. The mixture is irradiated, by ultraviolet radiation, so as to polymerize the monomer and thus obtain the gel. During the irradiation step, an electric or magnetic field is applied to the mixture.
    Type: Application
    Filed: April 2, 2008
    Publication date: February 18, 2010
    Applicant: INSTITUT TELECOM/TELECOM BRETAGNE
    Inventors: Bertrand Caillaud, Pascal Gautier, Jean-Louis De Bougrenet De La Tocnaye, Laurent Dupont, Aline Guenot
  • Patent number: 7659954
    Abstract: A liquid crystal display device of electrically controlled birefringence mode includes the combination of a liquid crystal cell having a liquid crystal layer sandwiched between a pair of substrates, and a hybrid retardation layer in which liquid crystal molecules are hybrid-aligned, and the hybrid retardation layer is formed by deposition at the liquid crystal layer side on one substrate of the pair of substrates.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: February 9, 2010
    Assignee: Sony Corporation
    Inventors: Tsuyoshi Ohyama, Masaya Tamaki, Koji Ishizaki, Setsuo Suzuki, Motoharu Nishida, Kotaro Yoneda, Akira Sakaigawa, Hidemasa Yamaguchi, Koji Noguchi, Masaaki Kabe
  • Patent number: 7659963
    Abstract: A liquid crystal dispensing apparatus includes a liquid crystal dispensing means and a nozzle cleaning means. The liquid crystal dispensing means includes a liquid crystal container for containing liquid crystal material and a nozzle through which the liquid crystal material may be dispensed on a substrate. The nozzle cleaning means is arranged around the nozzle and removes liquid crystal residue accumulated on a surface of the nozzle, moves to a lower portion of the nozzle to suck and remove the liquid crystal residue after liquid crystal material is dispensed by the liquid crystal dispensing means a predetermined number of times.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: February 9, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son
  • Patent number: 7656499
    Abstract: The invention relates to a method of manufacturing a liquid crystal display for which the one drop filling method is used to fill the gap between the substrates thereof and provides a method of manufacturing a liquid crystal display which can achieve high display characteristics. Droplets of a liquid crystal are dispensed in positions associated with exposure joint lines at boundaries between respective couples of adjoining regions to be exposed. Since this prevents stripe-like irregularities and grid-like irregularities from overlapping each other, display irregularities become less visually perceptible.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: February 2, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Kida, Shota Makimoto
  • Publication number: 20100015398
    Abstract: One embodiment of the present invention is a substrate with a partition wall pattern, the partition wall pattern formed on a predetermined position of the substrate, the partition wall pattern having a material including a fluorine compound, wherein a ratio of a detected intensity of a fragment ion of F? (M/Z=19) to total detected intensity of all minus ions is 25%-60% in the case where analysis of minus ions of an upper surface of the partition wall is performed using a time-of-flight secondary ion mass spectrometry (TOF-SIMS).
    Type: Application
    Filed: June 19, 2007
    Publication date: January 21, 2010
    Applicant: Toppan Printing C0. Ltd
    Inventors: Junichi Kaminaga, Hiroyuki Miura, Takeshi Ikeda, Yuji Kubo, Eishi Aoki
  • Patent number: 7643123
    Abstract: A liquid crystal display device includes a liquid crystal display panel having a liquid crystal area defined within a display area by a sealant, and a non-display area formed in an outer part of the display area, and at least one bubble trap arranged in the outer part of the sealant within the non-display area and patterned to have a concave surface facing toward outside of the non-display area.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: January 5, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Se Joon Baek, Hae Joon Son
  • Publication number: 20090323013
    Abstract: A modulized display component and a manufacturing method for the same are disclosed in this invention. The display component of this invention is designed according to a modulization concept so that it can be attached to any driving circuit layer. Further, various manufacturing techniques can be used to form the alignment layers and protective layers in order to fabricate a trans-reflective, reflective, or transmissive color displaying component.
    Type: Application
    Filed: September 11, 2009
    Publication date: December 31, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chi-Chang Liao, Lung-Pin Hsin, Jau-Min Ding
  • Publication number: 20090316105
    Abstract: A liquid crystal display (LCD) device includes a first substrate having a plurality of column spacers fixed thereto, a second substrate facing the first substrate, and having a plurality of projections at portions corresponding to the column spacers, the projections contacting the column spacers, and a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 24, 2009
    Inventors: Chang Ho Oh, Jeom Jae Kim, Hong Man Moon, Sung Hak Jo, Mon Soo Kang
  • Patent number: 7626678
    Abstract: A repairing method of a liquid crystal display panel having a gravity defect includes steps of providing a first pressure to the liquid crystal display panel. Next, a second pressure is continuously provided to the liquid crystal display panel, and a section from the edge of the liquid crystal panel to the sealant is removed and forming an opening through the closed sealant frame. Then, forcing out the excess liquid crystal to flow out the panel through the cut off sections, cleaning out the excess material including LC mixture around the opening, and sealing the opening with a fresh end sealant. After that, providing a third pressure to the liquid crystal display panel, curing the end sealant to seal the opening, and then removing the third pressure. Finally, annealing the liquid crystal display panel to recover original display quality.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: December 1, 2009
    Assignee: HannStar Display Corp.
    Inventors: Kei-Hsiung Yang, Jiunn-Shyong Lin
  • Publication number: 20090290078
    Abstract: A bistable switchable liquid crystal device is provided in which the device can be switched between a transparent and an opaque state by a predetermined voltage pulse. The device is based on polymer stabilized cholesteric materials. No additional amount of voltage has to be applied to the device in order to sustain the optical states. Therefore, the device is energy-saving.
    Type: Application
    Filed: March 24, 2009
    Publication date: November 26, 2009
    Applicant: KENT STATE UNIVERSITY
    Inventors: Deng-Ke YANG, Lei SHI, Rui BAO
  • Publication number: 20090279045
    Abstract: An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
    Type: Application
    Filed: November 10, 2008
    Publication date: November 12, 2009
    Inventors: Bum Soo Kim, Byoung Chul Choi, Byoung-Mok Ha, Chang Bo Shim, Chang-soo Na, Cheol Joo Moon, Chong Chan Eun, Gu-Yun Bok, Hae Joon Son, Heung-Sun Kim, Hong Seok Lee, Hyung Jin Park, Hyun-Ho Song, In Kyu Lee, Jae Chuon Ryu, Jae Ho Shin, Jae Min Jong, Je Hyun Kim, Jeong Ho Lee, Jeong-Joon Lee, Jong Won Kim, Jun Beom Cho, Jun Young Yu, Jung Seung Kim, Jung-Deog Yoo, Jung-Sik Kim, Se Joon Baek, Seung-Bum Lee, Seung-Won Moon, Sung-mo Koo, Tae Man Kim, Young Phil Bang, Myoung Su Yang, Jae Kyun Lee, Hyun-Seok Jang, Jung Il Lee
  • Publication number: 20090275256
    Abstract: A liquid crystal display device includes: a first substrate having a plurality of gate lines and a plurality of data lines crossing each other; a second substrate facing the first substrate; a first pattern spacer having an inverse tapered shape on an inner surface of the first substrate; a second pattern spacer having an inverse tapered shape on an inner surface of the second substrate; a seal pattern on a peripheral edge of the first and second substrates; and a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: July 15, 2009
    Publication date: November 5, 2009
    Applicant: LG DISPLAY CO., LTD
    Inventors: Joon Suk LEE, Young Seung JEE, Jeong Oh KIM
  • Patent number: 7609358
    Abstract: As the screen size becomes larger, it is required to make the device achieve higher definition, higher open area ratio, and higher reliability. Further, requirements for improvements in productivity and cost minimization are also increased. In the present invention, a substrate is pasted with a counter substrate after the liquid crystal material 114 is discharged (or dripped) only over a pixel area that is on a pixel electrode provided over a substrate with a large area by ink jet. Further, both of applying a seal material and dripping of a liquid crystal may be performed to the counter substrate. The total amount of liquid crystal use in a manufacturing process is reduced by forming a liquid crystal layer by ink jet.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: October 27, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hideaki Kuwabara
  • Publication number: 20090244442
    Abstract: Single-layered color cholesteric liquid crystal display devices and fabrication methods thereof are provided. The color cholesteric liquid crystal display device includes a first substrate structure having a base and periodic protrusion banks. A second substrate structure is disposed opposite the first substrate structure to enclose the periodic protrusion banks, and divide a plurality of color sub-pixel channels. A plurality of color cholesteric liquid crystals are respectfully filled in each of the color sub-pixel channel, wherein the base and the periodic protrusion banks are made of continuously integral material.
    Type: Application
    Filed: November 10, 2008
    Publication date: October 1, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Da-Wei Lee, Jyh-Wen Shiu, Yuan-Chang Liao, Jen-Chieh Yang
  • Patent number: 7595857
    Abstract: A method of fabricating a liquid crystal display device includes: preparing a first substrate in which a plurality of first panels is formed; preparing a second substrate in which a plurality of second panels is formed; forming a seal pattern around an outer edge of the panel, the seal pattern defining an active region and a dummy region and having at one side a protruding portion extending to the dummy region; dropping liquid crystal more than the reference amount to the active region; bonding the first and second substrates together by the seal pattern; separating a plurality of liquid crystal panels by cutting the first and second substrates, the liquid crystal panels being formed by bonding the first and second panels; and removing surplus liquid crystal from the liquid crystal panel by pressurizing the liquid crystal panel.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 29, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Myoung-Su Yang, Jae-Kyun Lee, Jung Il Lee, Jun-Beom Cho
  • Patent number: 7593090
    Abstract: A process for manufacturing a liquid crystal panel where a liquid crystal is held between a pair of substrates is characterized by marking a specified figure on one substrate, detecting the specified figure on the one substrate, applying a sealing material according to a predetermined pattern and providing a liquid crystal encapsulation opening in the vicinity of the marking, joining another substrate paired with the one substrate thereto, cutting the joined substrates to obtain a pair of substrates, injecting a liquid crystal material through the liquid crystal encapsulation openings of the pair of substrates thus obtained, and closing the liquid crystal encapsulation openings. According to the invention, a process for manufacturing a liquid crystal panel in which positioning of the liquid crystal encapsulation opening is facilitated in the step of applying the sealing material can thereby be provided.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: September 22, 2009
    Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.
    Inventors: Yoshihiro Akai, Masayuki Kametani
  • Publication number: 20090231522
    Abstract: Embodiments of a liquid crystal display panel include a first substrate, a second substrate and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate may include a color filter layer covering a thin-film transistor and having a recess portion. The second substrate may include a first spacer making contact with the first substrate and a second spacer disposed at a position corresponding to the recess portion of the color filter layer to be separated from the first substrate. The first substrate may further include a protrusion pattern formed under the recess portion of the color filter layer. The second spacer may be correspondingly disposed at a position where the recess portion and the protrusion pattern are formed.
    Type: Application
    Filed: August 14, 2008
    Publication date: September 17, 2009
    Inventors: Hee-Joon KIM, Jun-Ho Song, Joo-Han Kim
  • Publication number: 20090231535
    Abstract: A method of injecting liquid crystal material, which is capable of efficiently injecting a liquid crystal material having a high viscosity at room temperature, such as smectic-phase liquid crystal material while maintaining a high throughput, a seal pattern that can be preferably used for the method, and an apparatus for injecting liquid crystal material.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 17, 2009
    Applicant: Nano Loa, Inc.
    Inventor: Akihiro Mochizuki
  • Publication number: 20090213317
    Abstract: A method for manufacturing a liquid crystal display panel is provided. The method includes: providing a first substrate and a second substrate; providing a plurality of liquid crystal drops on the first substrate, wherein two adjacent liquid crystal drops in X direction is kept by a distance d1 mm, and two adjacent liquid crystal drops in Y direction is kept by a distance d2 mm, each liquid crystal drop is G mg, d1?16.7, d2?15.4, and G?1; and connecting the first substrate and the second substrate so that the liquid crystal drops are sealed between the first substrate and the second substrate.
    Type: Application
    Filed: April 2, 2008
    Publication date: August 27, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Jia-Hau Jian, Chih-Ho Chiu, Cheng-Jung Chiang, Chung-Ching Hsieh, Te-Sheng Chen, Norio Sugiura
  • Publication number: 20090213319
    Abstract: Provided is a method of manufacturing a liquid crystal display device containing a liquid crystal panel which holds a liquid crystal between first and second glass substrates. The method includes: an injecting step of injecting the liquid crystal from an injection hole for injecting the liquid crystal, which is provided on at least one side of the liquid crystal panel; a sealing step of sealing the injection hole with a sealing material; a beveling step of processing sides of the first glass substrate and the second glass substrate, at which the injection hole is provided, into a shape in which a thickness of each of the sides increases from end portions of the first glass substrate and the second glass substrate toward central portions thereof; and an etching step of etching the first glass substrate and the second glass substrate by chemical polishing.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 27, 2009
    Inventors: Susumu Sasaki, Hiroaki Endo, Sota Nemoto, Masanori Yuuki, Hitoshi Azuma
  • Publication number: 20090185130
    Abstract: A method of fabricating a driver circuit for use with a passive matrix or active matrix electrooptical display device such as a liquid crystal display. The driver circuit occupies less space than heretofore. A circuit (stick crystal) having a length substantially equal to the length of one side of the matrix of the display device is used as the driver circuit. The circuit is bonded to one substrate of the display device, and then the terminals of the circuit are connected with the terminals of the display device. Subsequently, the substrate of the driver circuit is removed. This makes the configuration of the circuit much simpler than the configuration of the circuit heretofore required by the TAB method or COG method, because conducting lines are not laid in a complex manner. The driver circuit can be formed on a large-area substrate such as a glass substrate. The display device can be formed on a lightweight material having a high shock resistance such as a plastic substrate.
    Type: Application
    Filed: November 4, 2008
    Publication date: July 23, 2009
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuhiko Takemura, Setsuo Nakajima, Yasuyuki Arai
  • Publication number: 20090174859
    Abstract: A liquid droplet discharging method of the present invention forms a pattern on a substrate by discharging liquid droplets on the substrate from a discharging bead having a liquid droplet discharging device, and moving the discharging head and the substrate relatively, and includes the steps of: preparing CAD data specified by a combination of a plurality of vector data; preparing bitmap data including an XY-matrix in which discharging positions of the liquid droplets are specified based on the CAD data; preparing liquid droplet discharging data for discharging of the liquid droplets based on the bitmap data; and forming the pattern by driving the liquid droplet discharging device based on the liquid droplet discharging data.
    Type: Application
    Filed: March 12, 2009
    Publication date: July 9, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Masayuki OKUYAMA
  • Patent number: 7554647
    Abstract: A method for fabricating a liquid crystal display (LCD) device includes: preparing a liquid crystal cell including a first substrate, a second substrate, liquid crystal between the first and second substrates, and a sealant surrounding the liquid crystal; forming an inlet in the liquid crystal cell while applying a first pressure to the liquid crystal cell; controlling an amount of the liquid crystal using the inlet; and sealing the inlet.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 30, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Dong Su Shin
  • Patent number: 7548300
    Abstract: A fabricating method of a liquid crystal display panel provides a first substrate and a second substrate. The first substrate has a sealant used for sealing with the second substrate to form a liquid crystal cavity. The first substrate and the second substrate are placed into a chamber to perform a liquid crystal filling process. An end seal process is performed at a predetermined temperature higher than room temperature to seal the liquid crystal with a predetermined weight into the liquid crystal cavity. A liquid crystal injection method, an end seal process, and heating apparatus are also provided.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: June 16, 2009
    Assignee: HannStar Display Corp.
    Inventors: Chien-Ming Chen, Kei-Hsiung Yang
  • Patent number: 7545477
    Abstract: An apparatus for manufacturing a liquid crystal display device includes a vacuum processing chamber having a substrate entrance, an upper stage and a lower stage provided at an interior of the vacuum processing chamber, and a compensation system positioned within the vacuum processing chamber for compensating for a temperature loss of the vacuum processing chamber when a pressure in the interior of the vacuum processing chamber is reduced.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: June 9, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Seok Lee, Sang Ho Park
  • Publication number: 20090142985
    Abstract: A method for manufacturing a liquid crystal device is one for manufacturing a liquid crystal device having liquid crystal sandwiched between a pair of substrates that are bonded together with a sealing material interposed therebetween. The method includes a spacer arrangement step of arranging spacer particles for regulating a gap between the pair of substrates in a spacer arrangement region of one of the pair of substrates; a liquid crystal application step of applying, when discharging and applying the liquid crystal as droplets to an image display region of one of the pair of substrates, the liquid crystal to enclose the spacer arrangement region, thereby forming a liquid crystal non-application region that includes the spacer arrangement region and to which the liquid crystal is not applied; and a substrate bonding step of causing the pair of substrates to face each other and bonding the pair of substrates together with the sealing material interposed therebetween.
    Type: Application
    Filed: October 31, 2008
    Publication date: June 4, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Tamotsu GOTO
  • Patent number: 7542124
    Abstract: A color display device comprising at least two substrates spaced from each other, the substrates each having an internal and an external surface, the internal surfaces of the two substrates facing each other, at least one of the substrates being transparent; electrodes positioned to establish a field in the space between the two substrates; an optically active material occupying at least a portion of the space between the two substrates and having optical properties influenced by the field; a color filter layer comprising color filter elements that alter the color of light traveling through the color filter layer, the color filter elements being positioned outside of the space between the two substrates; and a three-dimensional black mask comprising mask elements aligned with the boundaries between adjoining color filter elements.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: June 2, 2009
    Inventor: Gary A. Freeman
  • Patent number: 7542126
    Abstract: A droplet ejection apparatus for forming a functional film on a substrate is disclosed. The apparatus has a droplet ejection head having a nozzle forming surface in which a plurality of nozzles are formed. Droplets of a functional film forming composition are ejected from the nozzles onto the substrate. The nozzles form a plurality of nozzle rows that extend linearly. The nozzles of each of the nozzle rows are spaced at substantially equal intervals in such a manner that the pitch between each adjacent pair of the nozzles becomes greater than the diameter of a coating dot formed by each of the droplets on the substrate and smaller than the double of the diameter of each coating dot. The nozzle rows are arranged in such a manner as to form a zigzag pattern with the nozzles of the nozzle rows.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: June 2, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Kei Hiruma
  • Publication number: 20090135352
    Abstract: A liquid crystal device includes a pair of substrates; a liquid crystal layer sandwiched between the pair of substrates; a plurality of pixels each including a plurality of pixel regions, each of the pixel regions having a reflective display region and a transmissive display region; a phase difference film provided in the reflective display region, the phase difference film being located at a side of one substrate of the pair of substrates adjacent to the liquid crystal layer; and a partition wall member having light-shielding properties, the partition wall member being provided at the side of the one substrate adjacent to the liquid crystal layer to partition the phase difference film.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 28, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Katsumi SUZUKI, Tamotsu GOTO, Toshihiro OTAKE
  • Publication number: 20090128771
    Abstract: Fabrication methods for cholesteric liquid crystal display devices are presented. A roll of a first substrate is conveyed from a first direction. A patterned enclosure structure is formed on the roll of the first substrate, wherein the patterned enclosure structure includes a plurality of stripes for dividing liquid crystals. A roll of a second substrate is conveyed from a second direction. An adhesion layer is formed on the roll of the second substrate. The first and the second substrates are assembled by dual rollers, thereby tightly combining the adhesion layer and the patterned enclosure structure.
    Type: Application
    Filed: December 18, 2008
    Publication date: May 21, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jen-Chieh Yang, Yuan-Chang Liao, Jyh-Wen Shiu
  • Publication number: 20090122252
    Abstract: A liquid crystal drop fill device by which liquid crystal panels of different sizes can be easily obtained from a mother glass, and a method for drop filling liquid crystal by using the device is provided in order to increase utilization efficiency of the mother glass. The device 1 includes a stage 3 arranged to support a substrate 2, liquid crystal dispensers 4 and 5 arranged to drop fill liquid crystal on the substrate 2, a first moving unit arranged to support the dispensers 4 and 5 movably in a Y-direction (a moving direction of the dispenser) relative to the stage 3, and second moving units 7 and arranged to support the dispensers 4 and 5 movably in an X-direction (a direction perpendicular to the moving direction) relative to the first moving unit 6, wherein the device 1 further includes a third moving unit 9 arranged to support the dispenser 5 to be further movable in the Y-direction relative to the second moving unit 8.
    Type: Application
    Filed: June 27, 2006
    Publication date: May 14, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Shinichi Hirato
  • Patent number: 7532301
    Abstract: A method for fabricating a liquid crystal display panel includes forming a UV sealant on either one of first and second substrates, forming a liquid crystal layer between the first and second substrates, attaching the first and second substrates, irradiating a UV ray on the attached substrates with masking regions where the UV sealant and at least one scribing line are crossed, and cutting the bonded substrates into a plurality of unit cells.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: May 12, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Moo Yeol Park, Sung Su Jung
  • Publication number: 20090115954
    Abstract: An LCD panel including a first substrate, a second substrate, a black matrix, a liquid crystal (LC) layer, first photo spacers and second photo spacers is provided. The first and the second substrates are substantially parallel. The LC layer is disposed between the first and the second substrates. The black matrix disposed on the first substrate surrounds display regions and defines a non-display region. The first photo spacers contact the second substrate and are disposed on the black matrix. The second photo spacers are disposed on the black matrix. Channels are formed between the second photo spacers, such that LC molecules of the LC layer flow between the display regions through the channels. The width of the channels between any two of the adjacent second photo spacers substantially ranges from 2˜10 ?m. The dimension of the first photo spacers is substantially greater than that of the second photo spacers.
    Type: Application
    Filed: February 27, 2008
    Publication date: May 7, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Kuei-Sheng Tseng, Tung-Chang Tsai, Ming-Chang Shih, Chao-Chin Wu
  • Patent number: 7522255
    Abstract: An apparatus for filling sealant and a method for manufacturing a liquid crystal display device using the same. The apparatus includes: an upper substrate having an inlet for receiving a sealant; and a lower substrate combined with the upper substrate having a transfer path along which the sealant supplied through the inlet is transferred and having outlets formed at ends of the transfer path that discharge the sealant.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 21, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: An Ui Jung
  • Patent number: 7522253
    Abstract: A method of forming a liquid crystal layer on a substrate having a sealed pattern, which includes the steps of preparing a liquid crystal material in a projecting portion; applying a vibration and a pressure to the projecting portion so as to emit the liquid crystal material from the projecting portion, and depositing the emitted liquid crystal material on the substrate. Also, an apparatus is provided for forming a liquid crystal layer on a substrate having a sealed pattern which includes a projecting portion having a liquid crystal material; a resonator for generating a vibration, and a resonating plate for transmitting the vibration to the projecting portion.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: April 21, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Sang Byun, Moo-Yeol Park
  • Publication number: 20090096980
    Abstract: A method for determining a spatial property of an object includes obtaining a scanning low coherence interference signal from a measurement object that includes two or more interfaces. The scanning low coherence interference signal includes two or more overlapping low coherence interference signals, each of which results from a respective interface. Based on the low coherence interference signal, a spatial property of at least one of the interfaces is determined. In some cases, the determination is based on a subset of the low coherence interference signal rather than on the entirety of the signal. Alternatively, or in addition, the determination can be based on a template, which may be indicative of an instrument response of the interferometer used to obtain the low coherence interference signal.
    Type: Application
    Filed: October 31, 2008
    Publication date: April 16, 2009
    Inventor: Peter J. De Groot
  • Patent number: 7518701
    Abstract: The step of putting drops of liquid crystal onto a substrate includes the putting of drops of liquid crystal onto the substrate at spaced intervals of 15 mm or less. Thus, an impurity concentration is made equal to or less than 30 ppm in a region in which the liquid crystals collide with each other when the bonding of the substrates causes diffusion of the liquid crystals through a liquid crystal cell. A liquid crystal dripping apparatus including a branch nozzle having a plurality of discharge openings is used in the step of putting drops of liquid crystal onto the substrate. By a single dispensing operation, the apparatus simultaneously puts drops of liquid crystal onto a plurality of spots on the substrate.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: April 14, 2009
    Assignees: Fujitsu Limited, Au Optronics Corporation
    Inventor: Minoru Otani
  • Patent number: 7505108
    Abstract: A method of injecting liquid crystal material, which is capable of efficiently injecting a liquid crystal material having a high viscosity at room temperature, such as smectic-phase liquid crystal material while maintaining a high throughput, a seal pattern that can be preferably used for the method, and an apparatus for injecting liquid crystal material.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: March 17, 2009
    Assignee: Nano Loa, Inc.
    Inventor: Akihiro Mochizuki
  • Publication number: 20090059151
    Abstract: Disclosed is a liquid crystal display panel and manufacturing method thereof. The liquid crystal display panel includes a thin film transistor substrate, an opposite substrate facing the thin film transistor substrate, a pixel electrode formed on the thin film transistor substrate, and a common electrode formed on the opposite substrate. At least one of the pixel electrode and the common electrode includes conductive nanowires and a conductive filler.
    Type: Application
    Filed: May 20, 2008
    Publication date: March 5, 2009
    Inventors: Jong-Seong Kim, Saran Neerja, Woo-Jae Lee, Seong-Sik Shin
  • Patent number: 7499143
    Abstract: A film forming device forms a coated film on a substrate by discharging a liquid material in the form of liquid droplets, and causing the liquid droplets to impact on the substrate at a predetermined pitch. The predetermined pitch is determined based on the diameter of the liquid droplets after impact of the liquid droplets on the substrate. Drop marks are reduced and a uniform coated film is formed on the substrate.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: March 3, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Kei Hiruma
  • Publication number: 20090046231
    Abstract: A display panel including a substrate, a first electrode layer, a pixel definition layer, a liquid display medium, a cap layer, and a second electrode layer is provided. The first electrode layer is disposed on the substrate. The pixel definition layer is disposed on the first electrode layer, wherein the pixel definition layer has a plurality of openings arranged in array so as to expose a part of the first electrode layer. The liquid display medium is disposed within the openings. The cap layer is connected to the pixel definition layer and covers the liquid display medium, so as to envelop the liquid display medium in the openings. The second electrode layer is disposed on the cap layer. A method of fabricating the display panel is also provided. Accordingly, the thickness of the display panel is decreased and the process of fabricating the display panel is more easily controlled.
    Type: Application
    Filed: January 16, 2008
    Publication date: February 19, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jhih-Ping Lu, Fu-Kang Chen, Wen-Chun Chen, Yuh-Zheng Lee, Yuan-Chang Liao
  • Publication number: 20090033859
    Abstract: It is the object of the present invention to provide: a liquid crystal spacer that can precisely control the interval of two substrates in producing a liquid crystal display apparatus, and can be firmly fixed to the surface of the substrate; a spacer dispersion that can precisely control the interval of two substrates in manufacturing a liquid crystal display apparatus, and can make spacer particles firmly fixed to the surface of a substrate and a spacer dispersion that can precisely dispose spacer particles at a predetermined position on a substrate, a method for producing a liquid crystal display apparatus; and a liquid crystal display apparatus. The invention is a liquid crystal spacer, which comprises a base particle and an adhesive layer provided on the surface of the base particle, the apparent center of the adhesive layer being not identical to the apparent center of the base particle.
    Type: Application
    Filed: June 21, 2006
    Publication date: February 5, 2009
    Inventors: Michihisa Ueda, Takeshi Wakiya, Tsutomu Ando, Hiroshi Yoshitani
  • Patent number: 7483115
    Abstract: A method of laser processing a liquid crystal device wafer which is formed by laminating together a silicon substrate and a glass substrate, and has liquid crystal devices in respective rectangular areas sectioned by streets arranged in a lattice pattern on the front surface, the method comprising: a first deteriorated layer forming step for forming a deteriorated layer along the streets in the inside of the silicon substrate by applying a laser beam of a wavelength capable of passing through the silicone substrate and forming a deteriorated layer in the inside of the silicon substrate from the glass substrate side with its focal point set to the inside of the silicon substrate; and a second deteriorated layer forming step for forming a deteriorated layer along the streets in the inside of the glass substrate by applying a laser beam of a wavelength capable of passing through the glass substrate and forming a deteriorated layer in the inside of the glass substrate with its focal point set to the inside of the
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: January 27, 2009
    Assignee: Disco Corporation
    Inventors: Koichi Shigematsu, Satoshi Kobayashi, Kiyoshi Ohsuga
  • Publication number: 20080316417
    Abstract: A method of filling a multilayered cell with media. In the method, a multilayered cell having at least two layers, i.e., a first and second layer, is filled with media. The method comprises forming in the first layer a first medium injection region for filling the first layer with a first medium, forming in the second layer a second medium injection region for filling the second layer with a second medium, the second medium injection region corresponding to a region different from the first medium injection region, superposing the first and second layers, forming within the first medium injection region a first through-hole extending through the multilayered cell in the layer-thickness direction, forming within the second medium injection region a second through-hole extending through the multilayered cell in the layer-thickness direction, and injecting the first and second media into the first and second through-holes, respectively, to fill the first and second layers with the first and second media.
    Type: Application
    Filed: August 1, 2008
    Publication date: December 25, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihisa KUROSAKI, Junji TOMITA, Toshiaki YOSHIHARA
  • Patent number: 7466391
    Abstract: A plurality of liquid crystal cells are formed by encapsulating pieces of liquid crystal material with in a plurality of first sealing members, respectively, between a pair of flexible substrate base materials. Only respective parts of the pair of substrate base materials are contained inside a vacuum container, and the liquid crystal cells are formed inside the vacuum container reduced in pressure.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: December 16, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Noriko Watanabe
  • Patent number: 7450214
    Abstract: The step of putting drops of liquid crystal onto a substrate includes the putting of drops of liquid crystal onto the substrate at spaced intervals of 15 mm or less. Thus, an impurity concentration is made equal to or less than 30 ppm in a region in which the liquid crystals collide with each other when the bonding of the substrates causes diffusion of the liquid crystals through a liquid crystal cell. A liquid crystal dripping apparatus including a branch nozzle having a plurality of discharge openings is used in the step of putting drops of liquid crystal onto the substrate. By a single dispensing operation, the apparatus simultaneously puts drops of liquid crystal onto a plurality of spots on the substrate.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: November 11, 2008
    Assignees: Fujitsu Limited, AU Optronics Corporation
    Inventor: Minoru Otani
  • Patent number: 7450213
    Abstract: An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: November 11, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Bum Soo Kim, Byoung Chul Choi, Byoung-Mok Ha, Chang Bo Shim, Chang-Soo Na, Cheol Joo Moon, Chong Chan Eun, Gu-Yun Bok, Hae Joon Son, Heung-Sun Kim, Hong Seok Lee, Hyung Jin Park, Hyun-Ho Song, In Kyu Lee, Jae Choon Ryu, Jae Ho Shin, Jae Min Jong, Je Hyun Kim, Jeong-Ho Lee, Jeong-Joon Lee, Jong Won Kim, Jun Beom Cho, Jun Young Yu, Jung Seung Kim, Jung-Deog Yoo, Jung-Sik Kim, Se Joon Baek, Seung-Bum Lee, Seung-Won Moon, Sung-Mo Koo, Tae Man Kim, Young Phil Bang, Myoung Su Yang, Jae Kyun Lee, Ilyun-Seok Jang, Jung Il Lee
  • Publication number: 20080273158
    Abstract: A liquid crystal display panel and the method of manufacturing the same are disclosed. Because an overlap portion of the seal pattern that encompasses in a closed form the outer edge of the image display part is minimized, excessive distribution of sealant at the overlap portion may be prevented.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 6, 2008
    Applicant: L.G.DISPLAY CO., LTD
    Inventors: Sung Su Jung, Yong Keun Kwak
  • Patent number: 7443481
    Abstract: A liquid crystal display panel (1) includes an upper substrate (300) and a lower substrate (100) opposite to each other, a liquid crystal layer (200) interposed between the upper and lower substrates. A plate sealing adhesive (400) is applied to an interface between the upper plate and the lower plate, and encircling the liquid crystal layer. The plate sealing adhesive defines an opening (403) therein; and an electrically conductive adhesive (500) is applied in the opening. A method for manufacturing the liquid crystal display panel is also disclosed. The plate sealing adhesive can be evenly distributed.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: October 28, 2008
    Assignee: Innolux Display Corp.
    Inventors: Jia-Yi Wu, Yun-Szu Liu, Kun-Hsing Hsiao