Sealing Of Liquid Crystal Patents (Class 349/190)
  • Patent number: 8558982
    Abstract: A liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel comprises a color filter substrate and an array substrate which are assembled together with a sealant, and an accommodating space for accommodating liquid crystal is formed between the sealant and an edge of an effective display region that is formed between the color filter substrate and the array substrate.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: October 15, 2013
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Weitao Chen, Dongsheng Huang, Kai Zhao
  • Patent number: 8542339
    Abstract: Techniques are provided for unifying steps of sealing material so that the yield and the reliability of a liquid-crystal display device become high. A starting film of scanning lines is patterned so that prismatic dummy wirings 301 for the first layer which are not electrically connected are formed in regions R1 and R2, and wirings 302 extending from the pixel section are formed in a region R3, and wirings 303 having connection end portions 303a are formed in a region R4. After an interlayer insulation film is formed, the starting film of the signal lines is patterned so that the dummy wirings 304 for the second layer are formed to embed the gaps between the wirings 301 to 303, and also the wirings 305 and the wirings 303 which extend from the pixel portion are connected to each other. This permits unification of the cross-sectional structure of the sealing material formation region.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 24, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hongyong Zhang
  • Patent number: 8537322
    Abstract: A liquid crystal display (LCD) module is disclosed, which comprises a thin film transistor (TFT) substrate and a color filter (CF) substrate disposed opposite to each other, and a liquid crystal layer sandwiched between the TFT substrate and the CF substrate. The TFT substrate comprises a plurality of transmission test units and a plurality of wires. The CF substrate comprises a plurality of curing test units insulated from each other, and each of the curing test units is electrically connected to one of the wires via one of the transmission test units. An LCD device and a manufacturing method of an LCD module are further disclosed. The LCD device, the LCD module and the manufacturing method thereof according to the present disclosure can avoid occurrence of arcing in the TFT substrate during the CVD process, thereby improving the product yield and reducing the manufacturing cost.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 17, 2013
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Ming-Hung Shih, Meng Li
  • Publication number: 20130235321
    Abstract: A method of producing a film substrate includes forming a sealing part for sealing a liquid crystal material between a first substrate and a second substrate into a shape having an outward projecting liquid crystal material injection port of the sealing part and cutting the first substrate and the second substrate into a shape having outward projecting parts opposite to the liquid crystal material injection port, in which the forming of the sealing part forms the liquid crystal material injection port of the sealing part on a cutting line of the cutting of the first substrate and the second substrate.
    Type: Application
    Filed: April 24, 2013
    Publication date: September 12, 2013
    Applicant: Fujitsu Frontech Limited
    Inventor: Takahiro HIRANO
  • Patent number: 8514363
    Abstract: A liquid crystal display panel that can maintain sufficient adhesiveness between substrates. A liquid crystal display panel includes a first substrate, a second substrate facing the first substrate, circuit lines disposed in the first substrate, the circuit lines including a color filter common voltage line, and a sealing member interposed between the first substrate and the second substrate. The circuit lines are disposed in a first area including the color filter common voltage line and a second area that does not include the color filter common voltage line, and the sealing member is disposed closer to the edge of the first substrate than to the second area of the circuit lines.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Jin Kim, Seon-Hong Ahn
  • Patent number: 8508706
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and second substrate opposing the first substrate. A seal material is formed on the first substrate to attach the first substrate and second substrate with a predetermined cell gap therebetween. The seal material is formed in an approximately rectangular closed loop shape having four straight line portions. The straight line portion includes an expanded portion in which the width of one of the straight line portions is locally expanded. A barrier is arranged between the location where the expanded portion is formed and one end of the first substrate.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: August 13, 2013
    Assignee: Japan Display Central Inc.
    Inventor: Akira Minami
  • Patent number: 8493542
    Abstract: Techniques for successively fabricating liquid crystal cells at low cost, using two resinous substrates wound on their respective rolls. A color filter and an electrode pattern are formed by printing techniques. Furthermore, an orientation film is printed. These manufacturing steps are carried out successively by rotating various rolls.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: July 23, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Nishi, Satoshi Teramoto
  • Patent number: 8488072
    Abstract: To provide a structure and a manufacturing method which can manufacture, at a low cost and with good yield, a liquid crystal display panel having a lenticular lens and a substrate formed in a unified manner. When forming a lenticular lens onto a mother CF substrate by using a wet etching method, substrates are dipped into an etching solution while being raised up in such a manner that the length direction of slit openings of a mask is aligned with a vertical direction and an area having no mask pattern comes on a bottom side. With this, the residuals generated due to glass impurities can be drained towards the lower side along the lenticular lens shape to be discharged to the flat area, which makes it possible to suppress deterioration in the etching processed shape.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: July 16, 2013
    Assignee: NLT Technologies, Ltd.
    Inventors: Hiroshi Okumura, Setsuo Kaneko
  • Patent number: 8481859
    Abstract: Some embodiments teach a method of preparing a flexible substrate assembly. The method can include: (a) providing a carrier substrate; (b) providing a cross-linking adhesive; (c) providing a plastic substrate; and (d) coupling the carrier substrate to the plastic substrate using the cross-linking adhesive. Other embodiments are disclosed in this application.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: July 9, 2013
    Assignee: Arizona Board of Regents, a body corporate of the State of Arizona, Acting for and on behalf of Arizona State University
    Inventors: Jesmin Haq, Scott Ageno, Douglas E. Loy, Shawn O'Rourke, Robert Naujokaitis
  • Publication number: 20130169915
    Abstract: A polarizing liquid crystal panel includes a first substrate including a first base substrate, a first alignment layer, and a first electrode between the first base substrate and the first alignment layer, a second substrate including a second base substrate, a second alignment layer, and a second electrode between the second base substrate and the second alignment layer, the second substrate facing the first substrate, a spacer between the first and second substrates and maintaining a cell gap therebetween, and a liquid crystal flow preventing portion between the first and second substrates. The liquid crystal flow preventing portion extends in a first direction, and restricts movement of the spacer in a second direction substantially perpendicular to the first direction.
    Type: Application
    Filed: November 10, 2012
    Publication date: July 4, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: SAMSUNG DISPLAY CO., LTD.
  • Publication number: 20130128214
    Abstract: A sealant applying apparatus for an LCD substrate is disclosed, which comprises a first sealant spraying nozzle, a second sealant spraying nozzle and a conductive medium spraying nozzle. The first sealant spraying nozzle is fixedly spaced apart from the conductive medium spraying nozzle, the first sealant spraying nozzle, the second sealant spraying nozzle and the conductive medium spraying nozzle move together, and the first sealant spraying nozzle and the second sealant spraying nozzle are opened or closed together. A sealant applying method for an LCD substrate is further disclosed. According to the present disclosure, the sealant applying apparatus for an LCD substrate and the sealant applying method for an LCD substrate allow for uniform application of a sealant, saving of the process time and saving of the material cost.
    Type: Application
    Filed: December 5, 2011
    Publication date: May 23, 2013
    Applicant: Shenzhen China Star Optoelectronics Technology Co., LTD.
    Inventors: Ming-Feng Deng, Yi-Zhuang Zhuang, Song-Xian Wen, Xiao-Xin Zhang, Shao-Yuan Zhang, Hao Jin
  • Patent number: 8446559
    Abstract: A method of forming a stereoscopic liquid crystal display comprises providing an LCD panel, the LCD panel having a display area and a non-display area; disposing a lenticular plate on the LCD panel wherein a space is defined between a surface of the LCD panel and a surface of the lenticular plate; forming a seal between the surface of the LCD panel and the surface of the lenticular plate, the seal formed around the perimeter of the display area; forming a hole in the lenticular plate, the hole providing an air conduit that communicates with the space between the surface of the LCD panel and the surface of the lenticular plate; evacuating air from between the space; and filling the hole with a finishing material to maintain the vacuum between the lenticular plate and the LCD panel.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 21, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kyeong Jin Kim, Su Dong Roh, Jae Hyun Soh
  • Patent number: 8441607
    Abstract: A display device which can ensure sufficient adhesive strength between each pair of substrates of a liquid crystal display panel and a sealing material includes: a first substrate having a predetermined integrated circuit; a second substrate on one surface of the first substrate in an overlapping manner; and an adhesive material between the first substrate and the second substrate that has an annular planar shape. The adhesive material adheres the first substrate and the second substrate, wherein an outer periphery of the adhesive material includes a zone which includes a plurality of first portions passing substantially the same position as an outer periphery of the surface of the first substrate and a plurality of second portions each connected with the two neighboring first portions and having a center portion thereof in a peripheral direction retracted toward an inner peripheral side of the adhesive material.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 14, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Aki Tsuchiya, Takashi Yamamoto, Akira Ishii, Naoki Kikuchi, Yoshihiro Arai
  • Patent number: 8427624
    Abstract: In an IPS type liquid crystal display device, a light shielding film, a red color filter, an overcoat film, and an alignment film are formed in this order on a counter substrate. However, the alignment film is not formed in a seal portion. When the alignment film is subjected to photo-alignment with ultraviolet radiation, a portion of the overcoat film not covered with the alignment film is degraded by ultraviolet radiation. In order to prevent moisture penetrating from the degraded overcoat film from reaching the light shielding film to thereby alter the light shielding film and from causing the peeling of the light shielding film, the red color filter is disposed below the overcoat film to block the moisture.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: April 23, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Chikae Matsui, Hidehiro Sonoda, Noboru Kunimatsu
  • Patent number: 8421988
    Abstract: A liquid crystal panel 10 includes a pair of substantially rectangular substrates 17, 18 attached to each other, a liquid crystal layer 19 provided between the substrates 17, 18, and a sealant portion 20 having a substantially frame-like shape surrounding and sealing the liquid crystal layer 19. The sealant portion 20 includes an oblique portion 34 arranged oblique to the sides of the substrate 17, 18, at each of the four corners thereof. The liquid crystal panel 10 further includes a reinforcing portion 35 fixed to both substrates 17, 18. The reinforcing portion 35 is arranged along a planar direction of the substrate 17, 18 so as to be located between the oblique portion 34 and a corner point of the substrate 17, 18.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: April 16, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinichi Hirato
  • Patent number: 8421982
    Abstract: A display substrate includes a pixel, an organic layer and a shorting pad structure. The pixel electrode is arranged at a display area of a base substrate, and the pixel electrode is electrically connected to a transistor connected to a gate line and data line. The organic layer is arranged at the base substrate, and the organic layer is arranged between the transistor and the pixel electrode. The shorting pad structure is disposed at a peripheral area of the display area, and the shorting pad structure includes a first pad electrode at a lower height, a second pad electrode at a higher height, and a first height compensation pattern interposed between the first and second pad electrodes. A contact hole is defined through the organic layer so that second pad electrode can be electrically connected there through to the first pad electrode.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: April 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Joon Kim, Jeong-Eun Kim
  • Patent number: 8421969
    Abstract: An electrooptic device includes a first substrate, a second substrate which is arranged so as to be opposed to the first substrate, a plurality of pixel electrodes which are provided between the first substrate and the second substrate, a dielectric multilayer film which is formed so as to cover the plurality of pixel electrodes and in which a plurality of dielectric layers are laminated, and a sealing member which is arranged around a pixel region on which the plurality of pixel electrodes are provided and bonds the first substrate and the second substrate to each other. In the electrooptic device, at least one dielectric layer of the plurality of dielectric layers is formed so as not to overlap with a sealing region on the first substrate, on which the sealing member is arranged.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 16, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Ayae Sawado
  • Patent number: 8421981
    Abstract: A display panel having a display region and a sealant region is provided. The display panel includes a first substrate, a second substrate, a sealant and a display medium. The sealant is disposed between the first and second substrates and within the sealant region. The display medium is disposed between the first and second substrates and within the display region. The second substrate includes pixel units and wires electrically connected to the pixel units. The pixel units are disposed within the display region, the wires extend to the sealant region from the display region, and at least a portion of the wires in the sealant region has slots. In particular, each of the slots has a side edge adjacent to the edge of the wire which the slot is disposed therein, and the distances from the side edge to the edge of the wire are not equal.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: April 16, 2013
    Assignee: Au Optronics Corporation
    Inventors: Pai-Hung Hsu, Chien-Hao Fu, Chun-Huan Chang, Ming-Chin Lee, Min-Feng Chiang
  • Patent number: 8405814
    Abstract: A liquid crystal display device and fabricating method thereof are disclosed, by which insufficient or excessive filling of liquid crystals can be cured by adjusting a liquid crystal quantity in a liquid crystal display device having the insufficient or excessive filling of liquid crystals generated thereon. The present invention includes the steps of preparing a liquid crystal cell including a first substrate, a second substrate and a liquid crystal layer between the first and second substrates, checking a liquid crystal quantity within the liquid crystal cell, forming a hole in the liquid crystal cell, adjusting the liquid crystal quantity through the hole, and blocking the hole.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: March 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Chong Chan Eun, Tae Man Kim
  • Patent number: 8390775
    Abstract: A liquid crystal display device includes first and second substrates facing each other; a liquid crystal layer between the first and second substrates; and a seal pattern between the first and second substrates surrounding the liquid crystal layer, wherein the seal pattern is made of one of frit glass and glass paste.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: March 5, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Young Oh, Jong-Il Kim, Soo-Pool Kim
  • Publication number: 20130050631
    Abstract: The present invention discloses a substrate, a LCD panel, a LCD device and a method of sealant coating, wherein the substrate of said LCD panel comprises one or more quadrangular display areas surrounded and formed by sealant; the starting points of the sealant around said display area overlap the ending points to form an overlap section; wherein said overlap section is positioned at a corner of said display area. Because the application connections are just at the corner, the extra sealant can be directly cut off during cutting; in addition, the contamination by material extrusion after pressing caused by overly thick sealant coating at the connections can be avoided; and the man-hour of multiple cuttings can be reduced. Because the sealant overlap section is at the corner of the display area and will not diverge from the display area, the difficulty in controlling the width of the lines is solved.
    Type: Application
    Filed: September 15, 2011
    Publication date: February 28, 2013
    Inventors: Chihhsien LI, Chunliang Lee
  • Publication number: 20130044270
    Abstract: A liquid crystal display device includes: a display section including a liquid crystal layer between a pair of substrates; and a frame edge section provided to a periphery section of the pair of substrates. The frame edge section includes an injection port and an injection port section, the injection port being for injection of a liquid crystal material, and the injection port section being provided between the injection port and the display section. The injection port section includes a barrier structure including a clearance, and the barrier structure being in contact with both of the pair of substrates, and a sealing material filled in a portion extending from the injection port to the barrier structure.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 21, 2013
    Applicant: Japan Display West Inc.
    Inventors: Takeo Koito, Daisuke Takama, Morikazu Nomura
  • Patent number: 8379179
    Abstract: A flat panel display including a first substrate, a second substrate, a light emitting region between the first and second substrates, and a sealant applied outside of the light emitting region, wherein the sealant has a rectangular shape and includes a first sealing part and a third sealing part opposite each other, and a second sealing part and a fourth sealing part opposite each other, the first, second, third, and fourth sealing parts being interconnected, and wherein the flat panel display includes a compensating part corresponding to at least one of the first, second, third, and fourth sealing parts on or in the first or second substrate.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Ah Kim, Tae-Kyu Kim
  • Patent number: 8368863
    Abstract: A liquid crystal display (LCD) panel including a first substrate, a second substrate, a liquid crystal layer, a photo-curable sealant, and a first light-shielding pattern is provided. The liquid crystal layer is disposed between the first substrate and the second substrate. The photo-curable sealant is disposed between the first substrate and the second substrate, wherein the photo-curable sealant surrounds and is in contact with the liquid crystal layer. The first light-shielding pattern is disposed on the first substrate, wherein a portion of the sidewall of the first light-shielding pattern is substantially aligned with a portion of the sidewall of the first substrate, and the first light-shielding pattern is only overlapped with an outer edge of the photo-curable sealant or is not overlapped with the photo-curable sealant.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 5, 2013
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chieh Yang, Wen-Yi Hsu, Wei-Yi Chien, Mei-Lien Huang, Wei-Chen Tsai, Yu-Chen Liu, Chih-Hsiao Tseng
  • Patent number: 8368864
    Abstract: In a seal portion of a liquid crystal display device, column spacers are formed on a counter substrate side, organic passivation films are formed so as to face the column spacers on a TFT substrate side, and the gap between the TFT substrate and the counter substrate is controlled by the column spacers and the organic passivation films. A sealing material covers the column spacers and the organic passivation films and is in contact with an inorganic film formed on the TFT substrate on the TFT substrate side. Therefore, the adhesive force of the sealing material is improved to ensure the reliability of the seal portion.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: February 5, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Takahiro Nagami
  • Publication number: 20130027652
    Abstract: A liquid crystal display element (10) in accordance with the present invention includes (i) a pair of substrates (1), at least one of which is a flexible substrate, (ii) a liquid crystal (3) with which a gap between the pair of substrates (1) is filled, (iii) a spacer member (4) having a height so as to sustain a thickness of the liquid crystal (3), (iv) a sealant (2) for allowing the gap to be filled with the liquid crystal (3), and (v) a barrier (5) for causing a liquid crystal filling region to be divided into (a) a first region including a display region and (b) a second region located outside the first region. The barrier (5) is attached to one substrate (1b) of the pair of the substrates (1), and is in close contact with, but not attached to, the other substrate (1a).
    Type: Application
    Filed: March 29, 2011
    Publication date: January 31, 2013
    Applicants: DIC Corporation, Sharp Kabushiki Kaisha
    Inventors: Masao Urayama, Joji Kawamura
  • Patent number: 8363199
    Abstract: Provided is a liquid crystal display device including: a first substrate and a second substrate which are arranged so as to be opposed to each other for sandwiching a liquid crystal; an image display portion; a sealing material which seals the liquid crystal; and a light-shielding film which is formed on a liquid crystal side of the second substrate so that a part of the light-shielding film extends beyond the image display portion to overlap with the sealing material, and which has openings in the image display portion, at least in regions of the multiple pixels, in which the part of the light-shielding film that overlaps with the sealing material has a recessed portion formed on a sealing material side of the light-shielding film continuously or discontinuously along a circumferential direction of the sealing material, to a depth that is smaller than a thickness of the light-shielding film.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 29, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kuninobu Sekiya, Yasuyuki Yamada
  • Publication number: 20130021572
    Abstract: A liquid crystal display element (10) in accordance with the present invention includes: a pair of substrates (1), at least one of which is a flexible substrate; a liquid crystal layer (3) sealed in a gap between the pair of substrates (1); and spacer members (4), provided between the pair of substrates (1), which sustain the gap between the pair of substrates (1). A thickness of the liquid crystal layer (3) falls in a range of 93% to 98% of heights of the spacer members (4) while no pressure is applied to the spacer members. Adjacent spacer members (4) are provided at intervals of less than 400 ?m.
    Type: Application
    Filed: January 21, 2011
    Publication date: January 24, 2013
    Applicants: SHARP KABUSHIKI KAISHA, SUMITOMO BAKELITE CO., LTD., DAI NIPPON PRINTING CO., LTD.
    Inventors: Masao Urayama, Masanori Umeya, Atsushi Sugizaki
  • Patent number: 8355107
    Abstract: A display panel and a manufacture method thereof are provided. The display panel includes a first substrate, a second substrate, and a sealant. The first substrate has a top surface which includes a signal transmission module parallel to an edge of the top surface. The sealant is disposed on the top surface and parallel to the signal transmission module, which is disposed between the top surface and sealant. The sealant is made of a photo-curable material and includes an inner isolation wall, which is exposed via the signal transmission module. The second substrate is disposed on the sealant and includes an inner surface. A light-shielding structure is disposed on the inner surface and close to an edge of the inner surface. The sealant at least partially overlaps the light-shielding structure.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: January 15, 2013
    Assignee: AU Optronics Corporation
    Inventors: Mei-Lien Huang, Shih-Yu Wang, Chung-Wei Liu, Yung-Sheng Chiu
  • Publication number: 20130002970
    Abstract: Provided are a liquid crystal lens which controls an optical path, and a display including the liquid crystal lens. The liquid crystal lens includes a first and a second electrode which face each other, a liquid crystal layer interposed between the first electrode and the second electrode and has flat top and bottom surfaces, and a dielectric layer interposed between the second electrode and the liquid crystal layer, where the dielectric layer includes a first and a second dielectric sub-layer, the first dielectric sub-layer made of a material having a different dielectric constant from that of the second dielectric sub-layer, the first dielectric sub-layer includes one or more unit patterns, a surface of each of the unit patterns includes a plurality of flat sections, and a height of each of the unit patterns in a first flat section is different from the height thereof in a second flat section.
    Type: Application
    Filed: November 7, 2011
    Publication date: January 3, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jong-In Baek, Kee-Han Uh
  • Publication number: 20120327347
    Abstract: A liquid crystal display device may include a first substrate having a display area and a non-display area, a first electrode located on the first substrate at the display area, a second substrate opposed to the first substrate, a second electrode located on the second substrate at the display area, a liquid crystal layer located between the first electrode and the second electrode, a spacer located between the first substrate and the second substrate in the non-display area, a sealant located adjacent to the spacer, and a blocking structure located beneath the spacer.
    Type: Application
    Filed: December 6, 2011
    Publication date: December 27, 2012
    Inventors: Sung-Ho Cho, Seung-Jae Lee, Ji-Su Kim, Gyung-Soon Park
  • Patent number: 8334962
    Abstract: 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 th
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: December 18, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Hoon Chang, Min-Jung Kim
  • Patent number: 8325320
    Abstract: A method for repairing a liquid crystal display (LCD) device is provided for an LCD device whose LCD panel has a gravity defect. The method includes the steps of cutting an edge of the LCD panel, applying pressure to a surface of the LCD panel to exhaust excess liquid crystal material through the cut edge, and sealing the cut edge.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: December 4, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Kyun Lee, Dong Su Shin
  • Patent number: 8325319
    Abstract: A method for manufacturing a liquid crystal display panel includes applying a first frame-like sealing material, and a second sealing material adjacent to the first sealing material along at least one side of the first sealing material, on a first mother substrate; forming a spacer on a second mother substrate made of glass so as to extend between the first and second sealing materials; bonding the first mother substrate on which the first and second sealing materials are applied, and the second mother substrate on which the spacer is formed, to each other such that the first and second sealing materials are in contact with each other without gaps with the spacer being interposed therebetween, and that a liquid crystal layer is sealed within the frame defined by the first sealing material; and cutting the bonded mother substrates at an intermediate position in the width direction of the spacer.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: December 4, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tazo Ikeguchi
  • Patent number: 8319934
    Abstract: A display motherboard includes a first substrate, a second substrate, a plurality of cutting lines, and at least one photo supporting member. The second substrate is opposite the first substrate. The cutting lines are disposed on the first substrate and the second substrate, wherein the cutting lines separate the first substrate and the second substrate into at least one display panel. The photo supporting member is located between the first substrate and the second substrate, wherein the photo supporting member overlaps the cutting lines, and the photo supporting member has a bar shape surrounding the display panel.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: November 27, 2012
    Assignee: AU Optronics Corporation
    Inventors: Shu-Chih Wang, Che-Yao Wu
  • Publication number: 20120293741
    Abstract: A liquid crystal display (LCD) panel, and a manufacturing method and a driving method thereof are disclosed. The LCD panel comprises: a first pixel matrix comprising a plurality of first pixel units; a second pixel matrix comprising a plurality of second pixel units; and a driving unit, being connected to the first pixel matrix and the second pixel matrix to drive the first pixel matrix and the second pixel matrix respectively, wherein the first pixel matrix and the second pixel matrix are arranged in parallel, and at least a pair of the first pixel units and the second pixel units are partially overlapped with each other to form an overlapped pixel region. In this way, the present invention can provide a high resolution and improve the product yield with the process conditions remaining unchanged.
    Type: Application
    Filed: June 10, 2011
    Publication date: November 22, 2012
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Haobo Gu
  • Patent number: 8310650
    Abstract: It is an object to prevent disordered orientation of liquid crystal molecules which is due to division of substrates even when a liquid crystal dripping method is used, and to provide a method for manufacturing a liquid crystal display device in which liquid crystal is not adversely affected even when a sealant not cured and liquid crystal are in contact. In a method for manufacturing a liquid crystal display device using a liquid crystal dripping method, a scribe groove is provided for at least one of a pair of substrates with a diamond cutter or the like before the pair of substrates are attached under reduced pressure. After the scribing, the pair of substrates are attached under reduced pressure, heat treatment for curing the sealant and aligning the liquid crystal molecules is performed, and the substrates are divided by applying impact using a breaking apparatus.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: November 13, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masahide Kanai, Takeshi Nishi
  • Patent number: 8305543
    Abstract: 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: Grant
    Filed: July 31, 2009
    Date of Patent: November 6, 2012
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Dongsheng Huang
  • Patent number: 8294871
    Abstract: A liquid crystal cell manufacturing method includes preparing a pair of glass substrates each including an area configured to form a plurality of finished liquid crystal display apparatuses thereon, while a plurality of seal members and a plurality of pillars each including ends that respectively abut against the pair of glass substrates are interposed between the pair of glass substrates, adhering the pair of glass substrates to form a liquid crystal display apparatus forming assembly, and while the liquid crystal display apparatus forming assembly is formed, forming a plurality of scribe lines that intersect each other on surfaces of the pair of glass substrates that are opposite to surfaces of the pair of glass substrates that oppose each other. At least a part of each of the pillars is arranged to overlap at least one of regions, between the pair of glass substrates, corresponding to the plurality of scribe lines.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: October 23, 2012
    Assignee: Casio Computer Co., Ltd.
    Inventors: Naohiro Nomura, Kunihiko Kasuya
  • Patent number: 8289493
    Abstract: A display panel having a first region, a second region and a third region is provided. The display panel includes an active device array substrate, an opposite substrate, a display medium between the active device array substrate and the opposite substrate, and spacers arranged between the active device array substrate and the opposite substrate for maintaining a cell gap. The active device array substrate includes an active device array in the first region, a pad in the second region, a driving circuit in the third region, and a first alignment layer covering the first region, the second region and the third region. A thickness of the first alignment layer in the third region corresponding to the driving circuit is increased to be greater than those in the first region and the second region for buffering the pressure applied by the spacers.
    Type: Grant
    Filed: September 6, 2010
    Date of Patent: October 16, 2012
    Assignee: Au Optronics Corporation
    Inventor: Yi-Hau Shiau
  • Patent number: 8284376
    Abstract: A color filter on thin film transistor (COT) type liquid crystal display device includes a pixel region having a plurality of unit pixels defined by intersections of gate and data lines, the gate and data lines formed on a first substrate, a pad region receiving driving signals and applying the driving signals to the gate and data lines, a seal pattern between the pad region and the pixel region, an outside region having a first black matrix, the outside region being between the seal pattern and the pixel region and the first black matrix formed on the first substrate, and an electrostatic discharge circuit between the pad region and the pixel region, the electrostatic discharge circuit formed on the first substrate.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: October 9, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Dong-Guk Kim
  • Publication number: 20120242946
    Abstract: The present invention is a liquid crystal display device that includes the following: a first substrate 10 and a second substrate 20 that are disposed to face each other and that have alignment films 15 and 25 provided on the surfaces facing each other, respectively; a sealing member 30 that is located between outer peripheral portions of the first substrate 10 and the second substrate 20 to attach the outer peripheral portions to each other and that forms a hermetically sealed space inside; and a liquid crystal layer encapsulated in the hermetically sealed space. The outer peripheral edges of the alignment films 15 and 25 on the first substrate 10 and the second substrate 20 are located inside the outer peripheral edges of the substrates 10 and 20. In the outer peripheral portion of at least one of the alignment films 15 and 25, notches 15a or 25a are formed. The sealing member 30 is configured to straddle the substrates 10 and 20 and the alignment films 15 and 25, thereby covering the notches 15a and 25a.
    Type: Application
    Filed: September 22, 2010
    Publication date: September 27, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Masatoshi Itoh
  • Patent number: 8274635
    Abstract: A display device which can ensure a sufficient adhesive strength on an adhering surface between each of a pair of substrates of a liquid crystal display panel and a sealing material is provided.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: September 25, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Aki Tsuchiya, Takashi Yamamoto, Akira Ishii, Naoki Kikuchi, Yoshihiro Arai
  • Patent number: 8269943
    Abstract: In a method for manufacturing a liquid crystal display device in which a liquid crystal layer is formed by dropping liquid crystal by a dropping method, a surface of a sealant which is formed over a first substrate is cured by a first cure treatment before dropping the liquid crystal, and then the liquid crystal is dropped. A second substrate has a plurality of projections in a sealant adhesive region. The first substrate and the second substrate are attached to each other with the liquid crystal interposed therebetween so that the plurality of projections is in contact with an uncured region in the sealant formed over the first substrate.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: September 18, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Nishi, Tetsuji Ishitani
  • Publication number: 20120229736
    Abstract: Disclosed is a liquid crystal panel that can prevent a light leakage from the outside through a sealing portion and that can achieve excellent display quality and a narrower frame. The liquid crystal panel 10 is provided with, in a non-display region 10B on a surface of a first substrate 11 on a side facing a second substrate 12, a black matrix installation area 30, which includes a black matrix forming section 32 and a black matrix non-forming section 34 that is enclosed by the black matrix forming section. A sealing portion 16 is formed in the black matrix installation area 30 such that a portion thereof that makes direct contact with the first substrate 11 is arranged in the black matrix non-forming section 34.
    Type: Application
    Filed: October 7, 2010
    Publication date: September 13, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomofumi Osaki, Taimi Oketani
  • Patent number: 8253919
    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: September 3, 2008
    Date of Patent: August 28, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Noriko Watanabe
  • Patent number: 8248575
    Abstract: A method includes for manufacturing a liquid crystal display device includes: a sealant supplying step of supplying an uncured sealant to a first substrate or a second substrate; a dropping step of dropping a liquid mixture of a liquid crystal material and an additive to a region inside the sealant; a bonding step of bonding the first substrate and the second substrate with the sealant and the liquid mixture interposed therebetween to form a bonded substrate; and a curing step of applying the predetermined curing conditions with a voltage being applied to a terminal portion, and thereby curing the sealant and altering the additive to give a pretilt angle to liquid crystal molecules.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: August 21, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinya Saeki, Yasuhiro Kume, Kazuhiko Tamai, Takaaki Okamoto
  • Patent number: 8237908
    Abstract: A method of manufacturing a liquid crystal display includes; forming a mother substrate assembly by disposing a liquid crystal mixture layer having liquid crystals and a light curable alignment supplement between a first mother substrate and a second mother substrate of a liquid crystal display, and disposing a light curable sealant surrounding the liquid crystal mixture layer, pre-tilting liquid crystal molecules of the liquid crystal mixture layer by applying a voltage to the first mother substrate and the second mother substrate, and simultaneously hardening the alignment supplement and the sealant by radiating light to the mother substrate assembly while applying the voltage to the first mother substrate and the second mother substrate.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Goo Seok, Jae-Jin Lyu, Seung-Beom Park, Jong-Ho Son, Ji-Won Sohn, Myeong-Ha Kye, Hoon Kim, Jun-Hee Na
  • Patent number: 8235761
    Abstract: Apparatus and methods for resizing COTS AMLCDs or other electronic displays, as well as resized displays made using these apparatus and methods, are provided. The electronic display includes a front plate, a back plate, a perimeter seal spacing the front and back plates apart, and image-generating medium contained in an area between the front and back plates. A target portion of the display may be identified and separated from an excess portion of the display, e.g., by cutting and breaking the plates of the display, thereby creating an exposed edge along the target portion. The plates of the target portion are pressed towards one another, e.g., to stabilize or compress the target portion. An adhesive is applied to the exposed edge, and the pressure is released to draw the adhesive between the plates along the exposed edge.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: August 7, 2012
    Inventor: Lawrence E. Tannas, Jr.
  • Patent number: 8233129
    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: Grant
    Filed: February 18, 2009
    Date of Patent: July 31, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Susumu Sasaki, Hiroaki Endo, Sota Nemoto, Masanori Yuuki, Hitoshi Azuma