Sealing Of Liquid Crystal Patents (Class 349/190)
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Publication number: 20100045912Abstract: A driving circuit and a common electrode are located within a sealant region of the first substrate, wherein the driving circuit includes switch devices and turn-line structures. The common electrode is located within the sealant region of the first substrate. The planar layer is located on the first substrate, wherein the thickness of the planar layer at the turn-line structure of the driving circuit is less than the thicknesses of other portions. The conductive layer is located on the planar layer. A second substrate having an electrode thereon is disposed opposite to the first substrate. A liquid crystal layer is located within the display region between the first substrate and the second substrate. A sealant is located within the sealant region between the first substrate and the second substrate, and conductive balls are distributed in the sealant.Type: ApplicationFiled: February 12, 2009Publication date: February 25, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Maw-Song Chen, Kuo-Yu Huang, Te-Chun Huang
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Patent number: 7667817Abstract: A laminated spacer portion formed by laminating various thin films that constitute thin-film transistors is disposed in peripheral driver circuits. As a result, even in a structure in which part of a sealing member is disposed above the peripheral driver circuits, pressure exerted from spacers in the sealing member is concentrated on the laminated spacer portion, whereby destruction of a thin-film transistor of the peripheral driver circuits can be prevented caused by the pressure from the sealing portion.Type: GrantFiled: July 24, 2007Date of Patent: February 23, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hongyong Zhang, Satoshi Teramoto
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Publication number: 20100039605Abstract: The method for dispensing sealant comprises: preparing an inner-side sealant that comprises a light curing sealant or a first mixture of a light curing sealant and a thermal curing sealant in which the content of the light curing sealant is more than that of the thermal curing sealant; preparing an outer-side sealant that comprises a thermal curing sealant or a second mixture of a light curing sealant and a thermal curing sealant in which the composition of the light curing sealant is less than or equal to that of the thermal curing sealant; simultaneously dispensing the inner-side sealant and the outer-side sealant onto a substrate along four edges of the substrate by using a device for dispensing sealant so that one side of the inner-side sealant abuts the sealed liquid crystal materials and the other side thereof integrates with the outer-side sealant.Type: ApplicationFiled: August 12, 2009Publication date: February 18, 2010Inventors: Haiyu ZHAO, Jingjing LIANG
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Publication number: 20100033667Abstract: An assembled panel is provided in the present invention, the panel comprises substrate for liquid crystal display. The substrate comprises a base substrate comprising at least one individual panel region, a subsidiary sealant member provided on the periphery of the individual panel region, at least one opening region provided on the subsidiary sealant member, and a buffer provided on the base substrate between the opening region and the individual panel region and corresponding to the opening region.Type: ApplicationFiled: July 31, 2009Publication date: February 11, 2010Inventor: Dongsheng Huang
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Patent number: 7659954Abstract: 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: GrantFiled: May 3, 2007Date of Patent: February 9, 2010Assignee: Sony CorporationInventors: Tsuyoshi Ohyama, Masaya Tamaki, Koji Ishizaki, Setsuo Suzuki, Motoharu Nishida, Kotaro Yoneda, Akira Sakaigawa, Hidemasa Yamaguchi, Koji Noguchi, Masaaki Kabe
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Patent number: 7656495Abstract: A liquid crystal display (LCD) panel, including a first substrate, a second substrate, a liquid crystal layer, a patterned sealant, several first stop structures, several second stop structures and several seal spacers, is provided. The first substrate is opposite to the second substrate. The liquid crystal layer and the patterned sealant surrounding it are disposed between the first substrate and the second substrate. The first stop structures disposed inside the patterned sealant surround the liquid crystal layer. Each second stop structure disposed inside the patterned sealant is located next to one of the first stop structures. The height H1 of each first or second stop structure is smaller than the distance H2 between the first and second substrates. The seal spacers are disposed inside the patterned sealant and located between the first and the second stop structures. A manufacture method of the LCD panel thereof is further provided.Type: GrantFiled: October 10, 2007Date of Patent: February 2, 2010Assignee: Au Optronics Corp.Inventors: Chih-Hsiung Weng, Chih-Chieh Chang, Pin-Chun Wu, Tsung-Yuan Chang
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Patent number: 7656489Abstract: Provided is a liquid crystal display enabling well-balanced improvement of contrast and the response speed against voltage application, in vertical alignment mode using a vertical alignment type liquid crystal. A liquid crystal display includes a couple of substrates disposed facing each other, and a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer containing liquid crystal molecules having a negative dielectric anisotropy, each pixel in the liquid crystal layer having more than two regions, the liquid crystal molecules in one of the regions having a pre-tilt angle different from that of the liquid crystal in another region.Type: GrantFiled: November 13, 2007Date of Patent: February 2, 2010Assignee: Sony CorporationInventors: Shunichi Suwa, Tsuyoshi Kamada
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Patent number: 7656500Abstract: A liquid crystal display device and a fabricating method having a simplified process are disclosed. The liquid crystal display device compromises, among other features, first and second substrates, a gate line crossing a data line with a gate insulating film therebetween to define a pixel area. A common line is provided on the substrate substantially parallel to the gate line, and a common electrode is extended from the common line into the pixel area. A pixel electrode is extended from a drain electrode into the pixel area to form a horizontal electric field with the common electrode. The data line, a source electrode, a drain electrode and the pixel electrode are formed of a first conductive layer group having at least double conductive layers, and are formed in an area to be sealed by a sealant upon joining the first and second substrates.Type: GrantFiled: December 21, 2005Date of Patent: February 2, 2010Assignee: LG Display Co., Ltd.Inventor: Byung Chul Ahn
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Patent number: 7652732Abstract: There are provided a substrate which has solved an unsatisfactory adhesion problem of a seal part in a liquid crystal cell comprising a retardation layer provided on the inner side of the cell, and a liquid crystal cell using the substrate. A black matrix layer 12 formed of a metal and its picture frame part 12A, a color filter layer 13, and a retardation layer 14 are stacked on a substrate 11, and an area including at least the picture frame part 12A is an area to be sealed.Type: GrantFiled: February 16, 2006Date of Patent: January 26, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tomoya Kawashima, Norihisa Moriya
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Publication number: 20100002180Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having; first to fourth driving lines in the non-display area over the first substrate, the first and second driving lines horizontally separated by a first distance, and the third and fourth driving lines horizontally separated by a second distance greater than the first distance; a seal pattern of an ultraviolet curable material in the non-display area, the seal pattern overlapping the third and fourth driving lines; and a liquid crystal layer inside the seal pattern between the first and second substrates.Type: ApplicationFiled: December 23, 2008Publication date: January 7, 2010Applicant: LG DISPLAY CO., LTD.Inventors: Ka-Kyung KIM, Seong-Soo HWANG, Young-Sik KIM
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Patent number: 7643110Abstract: There are provided a substrate which has solved an unsatisfactory adhesion problem of a seal part in a liquid crystal cell comprising a retardation layer provided on the inner side of the cell, and a liquid crystal cell using the substrate. A black matrix layer 12 formed of a resin composition containing a black colorant and its picture frame part 12A, a color filter layer 13, and a retardation layer 14 are stacked on a substrate 11, and an area including at least the picture frame part 12A is an area to be sealed.Type: GrantFiled: March 10, 2006Date of Patent: January 5, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tomoya Kawashima, Norihisa Moriya
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Patent number: 7643109Abstract: There are provided a substrate which has solved an unsatisfactory adhesion problem of a seal part in a liquid crystal cell comprising a retardation layer provided on the inner side of the cell, and a liquid crystal cell using the substrate. A color filter substrate includes a substrate 11, and at least a black matrix layer 12, a color filter layer 13, and a retardation layer 14 stacked on the substrate 11. The black matrix layer 12 and the color filter layer 13 are stacked on the substrate it while providing a margin around the periphery of the substrate 11. The retardation layer 14 is stacked on the black matrix layer 12 and the color filter layer 13 in a larger area than the area where the black matrix layer 12 and the color filter layer 13 are stacked. The substrate 11 in its margin, where neither the black matrix layer 12 nor the color filter layer 13 is stacked, is a predetermined seal area.Type: GrantFiled: February 16, 2006Date of Patent: January 5, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tomoya Kawashima, Norihisa Moriya
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Patent number: 7643123Abstract: 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: GrantFiled: June 28, 2005Date of Patent: January 5, 2010Assignee: LG Display Co., Ltd.Inventors: Se Joon Baek, Hae Joon Son
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Publication number: 20090316089Abstract: The present disclosure relates to a liquid crystal display panel and a method for fabricating the same which can enhance adhesive force between a thin film transistor substrate and a color filter substrate. The liquid crystal display panel includes a black matrix formed on an upper substrate, a common electrode formed on the black matrix, a lower substrate having a thin film transistor formed thereon, the lower substrate facing the upper substrate, and a seal pattern portion overlapped with the black matrix and the upper substrate with the common electrode disposed therebetween for bonding the upper substrate and the lower substrate together.Type: ApplicationFiled: December 30, 2008Publication date: December 24, 2009Inventors: Dong Uk Shin, Hea Jung Jung
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Publication number: 20090303427Abstract: A liquid crystal display panel includes a TFT substrate, a color filter (CF) substrate opposed to the TFT substrate, a sealant disposed between the TFT substrate and the CF substrate and disposed between portions of both the substrates located immediately outside display regions thereof, and a liquid crystal layer disposed between the TFT substrate and the CF substrate. The CF substrate is provided with a light-shielding layer at a portion located immediately outside its display region. The light-shielding layer is provided with a slit at a region that coincides with a line on the TFT substrate.Type: ApplicationFiled: February 20, 2006Publication date: December 10, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Masahiko Kondo, Shingo Jogan
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Patent number: 7630050Abstract: The present invention provides a liquid crystal display panel which can prevent a leak path of a sealing material when liquid crystal is brought into contact with an uncured sealing material in a sealing step and a manufacturing method thereof. In a liquid crystal display panel which forms a display region by providing liquid crystal in a gap defined between one substrate and another substrate, a weir which is continuously formed so as to surround the display region and a sealing material which is arranged to cover the weir are arranged on a surface of one substrate.Type: GrantFiled: February 8, 2007Date of Patent: December 8, 2009Assignee: Hitachi Displays, Ltd.Inventors: Setsuo Kobayashi, Hiroaki Miwa, Katsuhiko Ishii
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Patent number: 7626678Abstract: 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: GrantFiled: July 9, 2007Date of Patent: December 1, 2009Assignee: HannStar Display Corp.Inventors: Kei-Hsiung Yang, Jiunn-Shyong Lin
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Patent number: 7626674Abstract: A liquid crystal display device includes a liquid crystal display panel and a parallax barrier with a barrier light-shielding layer patterned on a barrier glass, bonded with an adhesive layer composed of an ultraviolet curing resin, provided with an area without a light-shielding layer on the peripheral portion of the parallax barrier, and a sealing material is arranged between a TFT substrate and a CF substrate with at least a portion thereof overlapping with the area without the light-shielding layer. Thus, peeling on the bonding surfaces between the parallax barrier and the liquid crystal display panel does not easily occur, and the occurrence of display non-uniformity due to strain of the CF substrate is prevented.Type: GrantFiled: June 27, 2006Date of Patent: December 1, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshihide Koyama, Hiroshi Fukushima
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Patent number: 7623215Abstract: A method of manufacturing a liquid crystal panel, in which a first seal for surrounding a display area is formed on one of a pair of substrates opposite to each other; a second seal for forming a reduced-pressure area is formed outside the display area; a liquid crystal material is dropped in a reduced-pressure state; thereafter, the other substrate is adhered thereto; and the first and second seals are hardened while pushing the substrates from the outsides thereof in an atmospheric pressure state, thus sealing the liquid crystal material. A dropped area of the liquid crystal material is defined satisfy: 2.5b?a?5b where “a” is an interval between an internal peripheral portion of the first seal and an external peripheral portion, and “b” is an interval between an external peripheral portion of the first seal and an internal peripheral portion of the second seal.Type: GrantFiled: October 8, 2004Date of Patent: November 24, 2009Assignee: NEC LCD Technologies, Ltd.Inventor: Toshihiko Motomatsu
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Publication number: 20090279009Abstract: A lateral electric field liquid crystal display panel is provided which includes a pair of substrates, a liquid crystal enclosed between the pair of substrates, liquid crystal-drive electrodes provided on one of the pair of substrates, a translucent electrostatic shielding layer provided on an exterior surface of at least one of the pair of substrates, and a polarizer disposed on the translucent electrostatic shielding layer, and in this liquid crystal display panel, the translucent electrostatic shielding layer has properties not to disappear by a chemical reaction with a material forming the polarizer.Type: ApplicationFiled: April 28, 2009Publication date: November 12, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventors: Katsuhiro IMAI, Kanechika KIYOSE, Kennosuke KAKEHI, Satoshi TAGUCHI
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Publication number: 20090275256Abstract: 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: ApplicationFiled: July 15, 2009Publication date: November 5, 2009Applicant: LG DISPLAY CO., LTDInventors: Joon Suk LEE, Young Seung JEE, Jeong Oh KIM
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Patent number: 7612857Abstract: A liquid crystal display device is provided which allows an ultraviolet curing sealant to be cured without blockage of ultraviolet rays by wiring formed of a conductive metal film and which ensures stabilized quality of reliability with the occurrence of defective image display inhibited. The liquid crystal display device is manufactured through a process including: bonding a liquid crystal driving substrate provided with wiring formed of a conductive metal film to its counter substrate; injecting a liquid crystal material into a clearance defined between the substrates through a liquid crystal material injecting portion; and then sealing the injecting portion with an ultraviolet curing sealant, the wiring being positioned so as not to overlap the interface between the liquid crystal material and the ultraviolet curing sealant in plan view.Type: GrantFiled: December 19, 2002Date of Patent: November 3, 2009Assignee: Panasonic CorporationInventors: Nami Uyama, Hideya Kawashima
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Patent number: 7609359Abstract: A plurality of projections are formed on one of a pair of substrates in a manner to surround a display area, thereafter a mask for shielding the outside of the display area on the substrate is placed such that the mask is in contact with the projections, and a deposition film is deposited within the display area with the mask being placed. After the mask is removed, a sealing material is placed in a region where the projections are formed. Then, another substrate of the pair of substrates is placed opposed to the one substrate having the projections formed thereon.Type: GrantFiled: May 17, 2006Date of Patent: October 27, 2009Assignee: Citizen Holdings Co., Ltd.Inventor: Kanetaka Sekiguchi
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Patent number: 7609358Abstract: 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: GrantFiled: January 15, 2004Date of Patent: October 27, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hideaki Kuwabara
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Patent number: 7605901Abstract: A liquid crystal cell assembly includes a first substrate member on which at least first electrodes are formed on each of cell regions which respectively correspond to liquid crystal cells and are arranged to be adjacent to each other, a second substrate member on which at least a second electrode opposing the first electrodes is formed on each cell region to correspond to each cell region of the first substrate member, and frame-like seal members which are arranged between the first substrate member and second substrate member, include common sides each formed by continuously connecting at least two adjacent side, are formed into frames that respectively define the cell regions, and bond the first and second substrate members.Type: GrantFiled: March 28, 2007Date of Patent: October 20, 2009Assignee: Casio Computer Co., Ltd.Inventors: Masao Yoshino, Makoto Iwasaki, Toshiharu Nishino, Shinji Danjo
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Publication number: 20090256796Abstract: A display device includes a backlight assembly, a display panel, a top chassis and a sealing member. The backlight assembly includes a light-generating unit, a receiving container receiving the light-generating unit and a mold frame disposed along an edge portion of the receiving container. The display panel is disposed on the mold frame. The top chassis is coupled to the receiving container, covers an edge portion of the display panel and fixes the display panel by. The sealing member is disposed between the mold frame and the top chassis to surround an end portion of the display panel, such as to fully seal a space between the end portion of the display panel and the mold frame. The sealing member has elasticity, insulating properties and adsorption capacity for foreign matter.Type: ApplicationFiled: February 4, 2009Publication date: October 15, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Woo Jang, Young-Jae Lee, Jin-Ho Cho, Chul-Woo Lee, Jong-Young Yun, Neung-Beom Lee
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Publication number: 20090257016Abstract: A process for producing a liquid crystal display device enabling to produce with simple process, and such a liquid crystal display device, are provided. A process for producing a liquid crystal display device comprising: a step of forming transparent electrodes (41, 42) on first and second substrates (11, 12); a step of applying an uncured raw seal material; a step of dropping a first functional material; a step of dropping a second functional material; a step of sandwiching the raw seal material (13a, 14a), the first functional material (32a) and the second functional material (31a) between the first and second substrates under a predetermined reduced pressure atmosphere, and thereby forming a sealed product wherein the first functional material is isolated from the second functional material by the raw seal material and sealed between the first and the second substrates; a step of exposing the sealed product to a normal atmospheric pressure; and a step of curing at least the raw seal material.Type: ApplicationFiled: May 7, 2009Publication date: October 15, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hiroshige ITO, Satoshi Niiyama, Hitoshi Tsushima
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Patent number: 7602469Abstract: A method for manufacturing a liquid crystal display device includes preparing a lower substrate and an upper substrate; depositing a sealant on one of the two substrates; dropping a liquid crystal on one of the two substrates; bonding the two substrates to each other; bonding the two substrates to each other by hardening the sealant; and thermal quenching the two bonded substrates. Since thermal quenching of the two bonded substrates is additionally performed after hardening of the sealant is performed using a liquid crystal dropping method, orientation of a liquid crystal layer, which is scattered by the hardening of the sealant, is returned to its original state, thus preventing domain defects.Type: GrantFiled: June 30, 2006Date of Patent: October 13, 2009Assignee: LG Display Co., Ltd.Inventor: Jae Ho Shin
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Publication number: 20090244460Abstract: A method of manufacturing a liquid crystal display device includes steps of preparing first and second substrates, forming alignment films on one surfaces of the first and second substrates, respectively, performing rubbing treatment on the alignment films, screen-printing a seal member on the one surface of the first substrate so as to surround a display area, and stacking the first and second substrates on each other while the first surfaces face to each other, with rubbing directions of the alignment films on the first and second substrates being parallel to each other, and joining the first and second substrates through the seal member by curing the seal member while the first and second substrates are bonded to each other through the seal member. The screen-printing is performed while a squeegee is moved in a direction parallel to the rubbing direction of the alignment film formed on the first substrate.Type: ApplicationFiled: March 27, 2009Publication date: October 1, 2009Applicant: Casio Computer Co., Ltd.Inventors: Norihiro Arai, Ryota Mizusako
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Patent number: 7595859Abstract: A poly-silicon liquid crystal display and a simplified method of fabricating the same are disclosed. A liquid crystal display device according to the present invention includes first and second substrates having a display region and a driver region; a first sealant overlapping the driver region; and a liquid crystal layer between the first and second substrates.Type: GrantFiled: June 27, 2005Date of Patent: September 29, 2009Assignee: LG Display Co., Ltd.Inventor: Yong In Park
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Patent number: 7593090Abstract: 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: GrantFiled: September 24, 2004Date of Patent: September 22, 2009Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.Inventors: Yoshihiro Akai, Masayuki Kametani
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Publication number: 20090231524Abstract: [Means for Solving the Problems] The outer periphery of a display medium layer is sealed by a sealant made of UV curable resin provided between first and second substrates. In the first substrate, a light shielding part including a light shielding layer is provided at a part corresponding to the sealant. In the second substrate, a part corresponding to the sealant is transparent. The light shielding part includes a face on the sealant side serving as a UV ray reflection face.Type: ApplicationFiled: August 11, 2006Publication date: September 17, 2009Inventor: Mitsuhiro Tanaka
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Patent number: 7589817Abstract: A method of manufacturing a display panel which comprises a first substrate, a second substrate arranged opposite to the first substrate with a gap therebetween, a plurality of display elements provided between the first and second substrates, a sealing member surrounding the display elements and bonding the first and second substrates to each other, and a filler layer provided between the first and second substrates and located outside the sealing member. The method comprises applying filler to a roller, moving the roller on an edge of the display panel, thereby filling a gap between the second substrate and that part of the first substrate which lies outside the sealing member, and curing the filler filled in the gap.Type: GrantFiled: November 14, 2006Date of Patent: September 15, 2009Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Masayoshi Uenishi
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Patent number: 7583350Abstract: A liquid crystal display device comprises: a first substrate and a second substrate facing and spaced apart from each other, the first substrate and the second substrate including an active area, a signal input area and a pad area, the signal input area and the pad area being disposed at a periphery of the active area; a gate line and a data line on the first substrate in the active area, the gate line and the data line crossing each other; first connection lines and second connection lines in the signal input area, the first connection lines extending to the pad area and crossing the second connection lines; a gate connection pattern contacting the first connection lines and the second connection lines; a common electrode on the second substrate; a shortage-preventing pattern on the common electrode and corresponding to the gate connection pattern; a seal pattern surrounding the active area, the seal pattern including a conductive ball; and a liquid crystal layer between the first and second substrates in thType: GrantFiled: June 15, 2006Date of Patent: September 1, 2009Assignee: LG Display Co., Ltd.Inventors: Byung-Hoon Chang, Min-Jung Kim
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Publication number: 20090213317Abstract: 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: ApplicationFiled: April 2, 2008Publication date: August 27, 2009Applicant: AU OPTRONICS CORP.Inventors: Jia-Hau Jian, Chih-Ho Chiu, Cheng-Jung Chiang, Chung-Ching Hsieh, Te-Sheng Chen, Norio Sugiura
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Patent number: 7573558Abstract: Disclosed is a support unit for visually inspecting a display substrate, such as an LCD device, that enhances accuracy of the inspection by supporting the display substrate at dummy regions between cell areas. The support unit includes fixed bars disposed apart from each other and along a first direction; a plurality of support bars connected to the fixed bars, the support bars oriented along a second direction crossing the first direction and movable along the first direction; a guide bar mounted on at least one of the support bars, the guide bar oriented along the first direction and movable along the second direction; first and second auxiliary support bars connected to the guide bar, the auxiliary support bars oriented along the second direction and movable along the first direction; and a plurality of supporting means disposed on the support bars and the auxiliary support bars.Type: GrantFiled: September 15, 2008Date of Patent: August 11, 2009Assignee: LG Display Co., Ltd.Inventors: Sang-Ho Park, Jang-Hun O
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Patent number: 7567332Abstract: A method of manufacturing a display panel and a display panel are described. A first substrate is provided. A wall structure is formed on the first substrate to define several microcups. A displaying medium is filled into the microcups. Thereafter, a sealing material is formed over the microcups filled with the displaying medium. A second substrate is put over the sealing material and a lamination process is performed, wherein the sealing material which contacts the wall structure bonds the second substrate to the wall structure, and the sealing material which contacts the displaying medium dissolves in the displaying medium.Type: GrantFiled: October 26, 2006Date of Patent: July 28, 2009Assignee: Industrial Technology Research InstituteInventors: Jau-Min Ding, Yan-Rung Lin, Ru-De Chen, Chung-Hao Chen, I-Chun Chen, Chun-Yuan Lin, Wei-Hsin Hou
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Patent number: 7567336Abstract: A method for manufacturing a liquid crystal display device includes providing first and second substrates; forming a main seal pattern on one of the first and second substrates by a printing method; forming a dummy sealant on the substrate having the main seal pattern by a selective dispensing method; dispensing liquid crystal material directly onto one of the first and second substrates; attaching the first and second substrates; and irradiating UV light to the attached first and second substrates.Type: GrantFiled: May 26, 2006Date of Patent: July 28, 2009Assignee: LG Display Co., Ltd.Inventors: Sung Su Jung, Soo Min Kwak
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Publication number: 20090174855Abstract: A liquid crystal cell comprising integral microstructure spacing elements is described. Moreover, fabrication processes for forming such a liquid crystal cell are also described.Type: ApplicationFiled: July 18, 2008Publication date: July 9, 2009Applicant: Plastic Knowledge Inc.Inventors: Mark Andrews, Xiangtong Li
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Patent number: 7557878Abstract: A liquid crystal display panel 10 of the invention has: an array substrate with a display region 14 in which a pixel electrode is formed in each of the regions enclosed by a plurality of signal lines and scan lines deployed as matrices; a opposed substrate with a common electrode; and a liquid crystal layer that is sealed between the array substrate and the opposed substrate by means of sealing agent 35 that seals together the peripheries of the two substrates. Features are: the periphery of the array substrate's display region 14 is covered by a border region 34 that has a reflector 37a and a continuous transparent electrode 38a, the outer periphery of the border region 34 is sealed by the sealing agent 35, and the border region 34's transparent electrode 38a is electrically coupled to the common electrode. Thanks to such structure, the border region improves the appearance at the periphery of the display region, and the phenomenon of night vision alongside the scan line wiring does not occur.Type: GrantFiled: June 13, 2007Date of Patent: July 7, 2009Assignee: Epson Imaging Devices CorporationInventors: Hironori Taniguchi, Shinichiro Tanaka, Hideki Kaneko, Tae Nakahara, Masashi Ariga
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Patent number: 7557898Abstract: A substrate gap adjusting device adjusts a gap between first and second substrates in a composite substrate. In the substrate gap adjusting device, the composite substrate includes the first substrate; the second substrate that is oppositely bonded to the first substrate through a sealant, the second substrate having a smaller area than the first substrate; and liquid crystal that is injected into a space surrounded by the first substrate, the second substrate, and the sealant.Type: GrantFiled: March 28, 2006Date of Patent: July 7, 2009Assignee: Seiko Epson CorporationInventors: Kazuo Tasaka, Narumi Ishibashi, Masanori Akiyama
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Patent number: 7554647Abstract: 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: GrantFiled: December 21, 2006Date of Patent: June 30, 2009Assignee: LG Display Co., Ltd.Inventor: Dong Su Shin
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Publication number: 20090153756Abstract: A liquid crystal display is disclosed, including first and second opposing substrates separated by a cell gap. The cell gap has an inner liquid crystal region including a liquid crystal composition, an outer sealant region including a sealant that bonds the first and second opposing substrates together, and a void region between the inner liquid crystal region and the outer sealant region. The sealant may be a pressure sensitive adhesive. Also disclosed is a method of manufacturing the liquid crystal display. A liquid crystal display assembly including at least two light reflecting liquid crystal displays is also disclosed, wherein at least one of the displays comprises the liquid crystal display disclosed herein.Type: ApplicationFiled: December 13, 2007Publication date: June 18, 2009Inventors: Ralph R. Roberts, Amy J. Hite, Jane K. Wardhana, Audrey A. Sherman
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Patent number: 7548300Abstract: 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: GrantFiled: April 22, 2005Date of Patent: June 16, 2009Assignee: HannStar Display Corp.Inventors: Chien-Ming Chen, Kei-Hsiung Yang
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Patent number: 7548298Abstract: A liquid crystal panel includes: a pair of substrates; inorganic oriented films having plural fine pores being provided on surfaces of the substrates facing each other; a liquid crystal layer being provided between the inorganic oriented films; and a sealing part sealing the liquid crystal layer, the sealing part being provided between the inorganic oriented films and along an outer periphery of the inorganic oriented films, the liquid crystal panel further including a filling material including a compound having a first functional group having high affinity with the inorganic oriented films and a second functional group having high affinity with the sealing part, the filling material being filled in an area of the inorganic oriented films overlapping the sealing part to fill the fine pores and to covers surfaces of the inorganic oriented films.Type: GrantFiled: August 25, 2006Date of Patent: June 16, 2009Assignee: Seiko Epson CorporationInventors: Koichi Terao, Yuji Shinohara, Tomoko Sasabayashi, Keipin Cho
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Patent number: 7545477Abstract: 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: GrantFiled: November 15, 2005Date of Patent: June 9, 2009Assignee: LG Display Co., Ltd.Inventors: Sang Seok Lee, Sang Ho Park
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Patent number: 7542124Abstract: 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: GrantFiled: June 11, 2008Date of Patent: June 2, 2009Inventor: Gary A. Freeman
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Publication number: 20090128756Abstract: A liquid crystal display panel having a display area comprises a first substrate, a second substrate, a sealant, a liquid crystal layer, and a light-shielding layer. The sealant is disposed between the first substrate and the second substrate. The liquid crystal layer is disposed in a space defined by the first substrate, the second substrate and the sealant. The light shielding layer is disposed on a first outer surface of the first substrate or a second outer surface of the second substrate, wherein the light shielding layer and the display area are not overlapped. In addition, the liquid crystal display panel further comprises a protection layer. Since the protection layer encapsulates the light-shielding layer, out-diffusion of dye within the light-shielding layer is effectively prevented.Type: ApplicationFiled: January 19, 2009Publication date: May 21, 2009Applicant: HANNSTAR DISPLAY CORPORATIONInventors: Cheng-Yeh Tsai, Wei-Chou Chen, Chih-Yung Wan, Ming-Tien Lin
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Patent number: 7535547Abstract: Electronic displays are physically reshaped and/or resized to meet custom specifications for special applications such as avionics, where Commercial Off-The-Shelf (COTS) Liquid Crystal Displays (LCDs) are not typically used. Customization includes cutting the physical display to specified dimensions to fit into a target opening, and resealing the display to preserve proper cell spacing and assure basic functionality. The target opening is typically a control panel or dashboard opening, such as in the cockpit of an airplane. The sealing process may include improving the original seal, and/or providing additional seals. Additional seals may protect sensitive areas against chemical corrosives or contamination, humidity, electrostatic damage, etc., and/or prevent light from passing around the edge of the display image area. Electric continuity may need to be reestablished for electric leads affected during the customization process, and electronic drivers may need to be reattached to the display.Type: GrantFiled: July 9, 2004Date of Patent: May 19, 2009Inventor: Lawrence E. Tannas, Jr.
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Patent number: 7532301Abstract: 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: GrantFiled: December 16, 2003Date of Patent: May 12, 2009Assignee: LG Display Co., Ltd.Inventors: Moo Yeol Park, Sung Su Jung