Plural Types In Single Liquid Crystal Cell Patents (Class 349/157)
-
Patent number: 7535533Abstract: An in-plane mode liquid crystal display device (LCD) is provided that is capable of improving the contrast ratio by blocking a light leakage region formed by a column spacer. The LCD includes gate and data lines that are formed on a substrate and cross each other to define pixels. A switching device, parallel first and second electrodes that generate a horizontal electric field, and a column spacer are disposed at each pixel. The column spacers are disposed between opposing substrates and are aligned with the black matrix or the data lines such that columns formed by the column spacers overlap with bent portions of the data lines.Type: GrantFiled: May 10, 2005Date of Patent: May 19, 2009Assignee: LG. Display Co., LtdInventors: Min-Jic Lee, Chang-Hoon Lee, Hee-Dong Choi
-
Patent number: 7528903Abstract: A display device includes a first substrate, a second substrate, and microcapsules sandwiched between the first substrate and the second substrate, the microcapsules constituting a display area, the microcapsules encapsulating a display material whose optical properties change in response to electrical stimulation. A conductive material for conducting between the substrates is provided between the first substrate and the second substrate to constitute a vertically conducting portion. The thickness of the conductive material is set such that the distance between the first substrate and the second substrate at the vertically conducting portion is larger than the distance between the first substrate and the second substrate in the display area.Type: GrantFiled: September 13, 2006Date of Patent: May 5, 2009Assignee: Seiko Epson CorporationInventor: Masami Uchida
-
Patent number: 7525621Abstract: A liquid crystal display includes first and second substrates. The first substrate has a first insulating substrate, and a pixel electrode formed on the first insulating substrate with a first opening pattern. The second substrate has a second insulating substrate, and a common electrode formed on the second insulating substrate with a second opening pattern. The first and the second opening patterns proceed parallel to each other while being arranged in an alternate manner. A liquid crystal material is injected between the first and the second substrates. A spacer is positioned at an end of the second opening pattern to maintain the distance between the first and the second substrates.Type: GrantFiled: November 30, 2005Date of Patent: April 28, 2009Assignee: Samsung Electronics, Co., Ltd.Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
-
Patent number: 7518694Abstract: A liquid crystal display panel includes an upper array substrate and a lower array substrate that are positioned to be opposite to each other, a liquid crystal positioned between the upper and lower array substrates, a protrusion projecting from the lower array substrate and a spacer positioned between the upper array substrate and the lower array substrate, the spacer having a first portion contacting the protrusion and a second portion contacting the upper array substrate, and the first portion has a first hardness different from a second hardness of a second portion.Type: GrantFiled: December 8, 2005Date of Patent: April 14, 2009Assignee: LG Display Co., Ltd.Inventor: Sung Hoe Yoon
-
Patent number: 7518695Abstract: A liquid crystal display device includes a first substrate and a second substrate arranged to face each other; at least one protrusion formed on the first substrate at a first region, the at lest one protrusion having a recess therein; a first column spacer formed on the second substrate corresponding to the at least one protrusion; and a liquid crystal layer filled between the first and second substrates.Type: GrantFiled: June 30, 2006Date of Patent: April 14, 2009Assignee: LG Display Co., Ltd.Inventors: Suk Ho Cho, Je Pil Yun
-
Patent number: 7515233Abstract: “A liquid crystal display of the present invention comprises a first substrate, a second substrate and a liquid crystal layer injected there between. The first substrate has first base plate, a gate line formed on the first base plate, a data line formed over the gate line, a switching element electrically connected to the gate line and the data line, a pixel electrode electrically connected to the switching element, an element dividing LC domains formed on the pixel electrode, first alignment layer formed on the domain dividing element. The second substrate comprises second base plate, a common electrode formed on the second base plate, a first protrusion and a second protrusion formed on the common electrode. The first protrusion and the second protrusion have different heights. A second alignment layer is formed on the protrusions.Type: GrantFiled: March 31, 2005Date of Patent: April 7, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jang-Soo Kim, Min-Hyung Choo
-
Patent number: 7515241Abstract: Provided are a bonding structure for a flat panel display and a method of forming the same, and a flat panel display, including the bonding structure. The bonding structure of a flat panel display device, which is formed between an upper substrate and a lower substrate to seal and bond the two substrates of the flat panel display device, and the bonding structure includes an outer separation wall and an inner separation wall of same heights being arranged along edges of the upper substrate and the lower substrate with a predetermined interval, and a sealant being applied between the outer separation wall and the inner separation wall.Type: GrantFiled: February 28, 2005Date of Patent: April 7, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Su-gun Kim, Sang-moo Park, Soon-young Hyun, Won-nyun Kim, Jong-min Wang, Gyu-min Lee
-
Patent number: 7499142Abstract: A manufacturing apparatus of a liquid crystal display includes a spacer supply plate provided with a plurality of grooves into which spacers are injected, a transcribing roller into a surface of which the spacers are first-transcribed thereof, and a support plate mounting a panel into which the spacers on the surface of the transcribing roller are second-transcribed.Type: GrantFiled: January 11, 2006Date of Patent: March 3, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Baek-Kyun Jeon, Duck-Jong Suh, Bong-Sung Seo
-
Patent number: 7495739Abstract: It is an object of the present invention to provide a liquid crystal display device in which areas of spacers can be reduced while securing sufficient strength of columns. In the liquid crystal device according to the invention with liquid crystal held between substrates of a pair and spacers (24) for keeping a gap between the substrates of the pair and provided between the substrates, each of the spacers (24) includes a first layer (24a) laminated over the substrate and a second layer (24b) disposed over the first layer (24a) to cross the first layer (24a) in a plan view.Type: GrantFiled: June 23, 2004Date of Patent: February 24, 2009Assignee: Sharp Kabushiki KaishaInventors: Shinichi Hirato, Naoshi Yamada, Hidetomo Miyake
-
Publication number: 20090046239Abstract: A liquid crystal display element includes two substrates, divided into a display region and a non-display region, between which liquid crystals are sandwiched, and first columnar spacers, disposed between the two substrates in the display region, which make contact with the two substrates. The liquid crystal display element also includes second columnar spacers, disposed between the two substrates in the non-display region, which make contact with the two substrate by a contact area that is smaller than a contact area by which the first columnar spacers make contact with the two substrates. Therefore, generation of vacuum bubbles in the display region due to a temperature drop or a substrate deformation causes the substrates in the non-display region to be concaved, so that the liquid crystals move from the concaved portion of the non-display region to a portion of the display region which contains the vacuum bubbles.Type: ApplicationFiled: January 17, 2006Publication date: February 19, 2009Applicant: SHARP KABUSHIKI KAISHAInventor: Noriko Watanabe
-
Patent number: 7486364Abstract: A liquid crystal display includes first and second substrates. The first substrate has a first insulating substrate, and a pixel electrode formed on the first insulating substrate with a first opening pattern. The second substrate has a second insulating substrate, and a common electrode formed on the second insulating substrate with a second opening pattern. The first and the second opening patterns proceed parallel to each other while being arranged in an alternate manner. A liquid crystal material is injected between the first and the second substrates. A spacer is positioned at an end of the second opening pattern to maintain the distance between the first and the second substrates.Type: GrantFiled: May 10, 2007Date of Patent: February 3, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
-
Publication number: 20080291385Abstract: A liquid crystal display panel includes: a pair of substrates; a cylindrical spacer configured to hold a gap between the pair of substrates, and a liquid crystal which fills the gap. The cylindrical spacer includes a first support portion having a first support surface and a second support portion having a second support surface. The first support portion is provided inside the second support surface so that the first support surface is projected from the second support surface. The second support portion is provided on a major surface of one of the substrates the second support surface from the major surface.Type: ApplicationFiled: May 20, 2008Publication date: November 27, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masashi AIZAWA, Atsuo Inoue, Yasutada Nakagawa
-
Patent number: 7456926Abstract: In order to prevent irreversible deformation of column-shaped spacers which retain the gap between a pair of substrates between which the liquid crystal layer of a liquid crystal display device is interposed, spacers which assist in preventing such irreversible deformation are newly provided. According to the invention, two or more kinds of spacers which differ in height from a reference surface are disposed on one of the pair of substrates. In addition, a step pattern with which the spacers are to come into contact is formed in advance on the other of the pair of substrates so that the heights of the spacers can be made different.Type: GrantFiled: October 3, 2006Date of Patent: November 25, 2008Assignee: Hitachi, Ltd.Inventors: Hiromasa Shimizu, Tatsuo Hamamoto
-
Publication number: 20080252842Abstract: In a semi-transmissive liquid crystal display device provided with a liquid crystal panel DP and a backlight BL, black spacers and transparent spacers are mixed and provided in a space between two opposing transparent substrates 4a and 4b, and let r be a radius of the spacers and S be a dimension of a light transmissive region T in a single pixel, then a value of ?r2/S is set in a range from 0.001 to 0.01. A stable display is thus enabled by eliminating display irregularities.Type: ApplicationFiled: June 4, 2008Publication date: October 16, 2008Applicant: KYOCERA CORPORATIONInventor: Yasunari NAGATA
-
Patent number: 7433011Abstract: A liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer formed between the first substrate and second substrate. The second substrate has an active region, a sealant surrounding the active region, and a spacer wall located between the active region and the sealant. Additionally, the spacer wall is used to prevent the liquid crystal layer from being contaminated by the sealant and to support the first substrate.Type: GrantFiled: March 17, 2004Date of Patent: October 7, 2008Assignee: Himax Technologies LimitedInventor: Bing-Jei Liao
-
Patent number: 7426009Abstract: A liquid crystal display device capable of obtaining high luminance and good display characteristics, a substrate for such a liquid crystal display device, and a manufacturing method of such a substrate, are provided. A color filter substrate that holds, together with an array substrate, a liquid crystal having negative dielectric anisotropy. Color filters are formed on a glass substrate and a common electrode is formed on the color filters. Protrusions and auxiliary protrusions for regulating the alignment of the liquid crystal are formed on the common electrode so as to have different sectional shapes.Type: GrantFiled: July 3, 2007Date of Patent: September 16, 2008Assignee: Sharp Kabushiki KaishaInventors: Manabu Sawasaki, Takashi Takagi, Tomonori Tanose
-
Patent number: 7400374Abstract: In a semi-transmissive liquid crystal display device provided with a liquid crystal panel DP and a backlight BL, black spacers and transparent spacers are mixed and provided in a space between two opposing transparent substrates 4a and 4b, and let r be a radius of the spacers and S be a dimension of a light transmissive region T in a single pixel, then a value of ?r2/S is set in a range from 0.001 to 0.01. A stable display is thus enabled by eliminating display irregularities.Type: GrantFiled: May 26, 2005Date of Patent: July 15, 2008Assignee: Kyocera CorporationInventor: Yasunari Nagata
-
Patent number: 7388642Abstract: After the attachment process, a substrate etching process, in which the outer surfaces of the upper and lower substrates are etched to reduce the thickness of the substrates, is performed according to the desired lightening of the substrate. However, since a main seal pattern can be damaged during the substrate etching process, a method of preventing the damage, in which a sub-seal pattern is formed, is suggested. However, if a plurality of unit liquid crystal cells is formed on one substrate, deterioration resulting from a low margin for the sub-seal patterns can occur so that a yield is decreased. In an embodiment according to the present invention, damage of the main seal pattern from the etching solution during the substrate etching process is prevented by the formation of the sub-seal patterns in the exterior of the main seal pattern, and air of the cell interior are easily vented due to the air vent portion having a proper seal pattern for ventilation.Type: GrantFiled: November 29, 2001Date of Patent: June 17, 2008Assignee: LG Display Co., Ltd.Inventor: Su-Woong Lee
-
Patent number: 7375788Abstract: An LCD device (10) includes a liquid crystal layer (17) interposed between the first (11) and second (19) substrates, a sealant (18) disposed at a peripheral region of the LCD between the first and second substrates for sealing a space between the first and second substrates, and a color filter layer (123) at the first substrate opposite to the second substrate. Furthermore, a photo spacer pattern (15) including a plurality of photo spacers being provided at the color filter layer. The photo spacers are provided within the space and outside the sealant at peripheral portions of the first and second substrates. A distributive density of photo spacers (152) within the space near an interior side of the sealant is larger than a distributive density of photo spacers (153) within the space distal from the interior side of the sealant.Type: GrantFiled: May 2, 2005Date of Patent: May 20, 2008Assignee: Innolux Display Corp.Inventors: Ching-Wei Chiang, Yen-Chung Chang
-
Patent number: 7345726Abstract: Exemplary embodiments provide a liquid crystal display capable of effectively reducing or preventing the alignment disorder of liquid crystal caused by an active element for switching a pixel, capable of achieving uniform and wide viewing angle display, and preferably capable of high quality color display. The liquid crystal display according to exemplary embodiments of the present invention includes an element substrate having a plurality of pixels, each pixel mainly including a pixel electrode and a TFD element; an opposite substrate opposing the element substrate; and a liquid crystal layer between both substrates. The liquid crystal layer includes liquid crystal with negative dielectric anisotropy, the initial alignment of molecules of the liquid crystal being vertical. A dielectric projection is provided on the inner side of the element substrate or the opposite substrate, the dielectric projection being located in the same position as the TFD element in plan view.Type: GrantFiled: October 13, 2004Date of Patent: March 18, 2008Assignee: Seiko Epson CorporationInventor: Hiromi Wano
-
Patent number: 7298448Abstract: An LCD with a uniform common voltage and a method thereof. The present invention method includes providing a lower substrate, forming scan lines and data lines, then forming common electrodes and common electrode pads electrically connecting the common electrodes. The method also includes providing an upper substrate, forming photo spacers corresponding to each of the electrode pad, then forming a conductive material layer covering each photo spacer, combining the two substrates and connecting the conductive material layer on the photo spacers to the common electrode pads, and sealing the two substrates.Type: GrantFiled: February 24, 2004Date of Patent: November 20, 2007Assignee: AU Optronics Corp.Inventor: Yang-En Wu
-
Patent number: 7298449Abstract: A first transparent substrate and a second transparent substrate having such a plurality of protrusions on the liquid crystal layer side as to contact with the first transparent substrate are so fixed by means of a sealant that they bend convexly to the liquid crystal layer. Thus, it is possible to suppress the mura defect of a panel, which might otherwise be caused by the heat radiation from a back light when a liquid crystal display apparatus is driven.Type: GrantFiled: August 10, 2004Date of Patent: November 20, 2007Assignee: Hitachi Displays, Ltd.Inventors: Makoto Tatemura, Hideyuki Honoki, Hiroko Hayata, Masanori Yuki, Keiichiro Ashizawa
-
Patent number: 7286204Abstract: The invention includes a liquid crystal display panel including spacers and a method of making this panel. The spacers, which are positioned in the liquid crystal-filled gap between a first substrate and a second substrate, provide support to the substrates and prevent the substrate from bending when the device is used as a touch screen panel. By preventing the bending of the device, the spacers help prevent the undesirable ripple effect suffered by liquid crystal devices. In order to minimize the amount of light blocked by the spacers, the spacers are formed in a region where light is substantially intercepted anyway, such as in a contact hole. A black matrix layer is formed on the spacers. The spacers may be distributed unevenly between the substrates, depending on how much force each of the spacers will have to absorb in each area of the panel.Type: GrantFiled: February 23, 2004Date of Patent: October 23, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Ho Yang, Kyo-Seop Choo, Jin-Suk Park
-
Patent number: 7256859Abstract: A liquid crystal display panel and method for fabricating the same are disclosed in the present invention. The liquid crystal display panel includes first and second substrates facing into each other, a column spacer in a pixel region between the substrates, a dummy column spacer formed in a dummy region between the substrates, the dummy column spacer having an opened portion in at least one of corner-regions, a UV sealant formed outside the dummy column spacer between the substrates, and a liquid crystal layer between the substrates.Type: GrantFiled: November 3, 2004Date of Patent: August 14, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Jong Woo Kim, Sung Chun Kang, Young Hun Ha
-
Patent number: 7248329Abstract: A liquid crystal display device includes first and second substrates facing each other and spaced apart by a uniform cell gap, an array element having a switching element on the first substrate and a first transparent electrode connected to the switching element, a first patterned spacer disposed on the array element having a first height less than the uniform cell gap, a second transparent electrode under the second substrate, a second patterned spacer disposed beneath the second transparent electrode, the second patterned spacer having a second height less than the uniform cell gap and connected to the first patterned spacer, a first alignment layer covering the first patterned spacer, a second alignment layer covering the second patterned spacer, and a liquid crystal material layer interposed between the first and second alignment layers, wherein the first and second spacers are connected to each other and a summation of the first and second heights of the first and second patterned spacers is equivalent tType: GrantFiled: November 21, 2005Date of Patent: July 24, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Ku-Hyun Park, Sang-Ho Choi
-
Patent number: 7220999Abstract: An electro-optical device is provided that includes a protection layer formed on a first substrate leaving a region of the first substrate region exposed; a first electrode formed on the protection layer; a first inter-substrate conduction unit formed on the protection layer and electrically connected to the first electrode; a second substrate opposing the first substrate and having a second electrode formed thereon; a second inter-substrate conduction unit formed on the second substrate and electrically connected to the second electrode; and a conductive member interposed between the first inter-substrate conduction unit and the second inter-substrate conduction unit to electrically connect both units together. The electro-optical device further includes a sealant that contains the conductive member bonding the first substrate and the second substrate together by extending over the protection layer and the exposed region where the protection layer is not formed.Type: GrantFiled: April 1, 2004Date of Patent: May 22, 2007Assignee: Seiko Epson CorporationInventors: Yoshikatsu Imazeki, Kazuyoshi Sakai
-
Patent number: 7167228Abstract: A liquid crystal display device includes first and second substrates, a liquid crystal layer sandwiched between the first and second substrates, a pixel electrode formed on the first substrate, and a counter electrode formed on the second substrate. A plurality of projected portions are formed on the second substrate in a pixel area. The plurality of projected portions includes a first projected portion and a second projected portion, and the first projected portion is longer than the second projected portion in the pixel area.Type: GrantFiled: February 13, 2003Date of Patent: January 23, 2007Assignee: Hitachi, Ltd.Inventors: Kazuhiko Yanagawa, Keiichiro Ashizawa, Masahiro Ishii, Masayuki Hikiba
-
Patent number: 7163733Abstract: A touch screen comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the substantially planar surface and a peak furthest from the substantially planar surface; and d) a second conductive layer located on the substantially planar surface of the flexible sheet, the peaks of the integral compressible spacer dots extending beyond the second conductive layer located on the substantially planar surface; wherein the first and second conductive layers are positioned towards each other and separated by the integral compressible spacer dots.Type: GrantFiled: November 12, 2004Date of Patent: January 16, 2007Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Cheryl J. Brickey, Ronald S. Cok
-
Patent number: 7133109Abstract: A liquid crystal display apparatus includes first and second substrates, a liquid crystal layer, a sealing member, and first and second spacers. The first substrate includes a first display part having a pixel electrode formed thereon. The second substrate includes a second display part having a common electrode. The liquid crystal layer is interposed between the first and second substrates. The seal line includes a liquid crystal inlet. The first spacer is disposed between the first and second display parts. The second spacer is disposed near the liquid crystal inlet. The second and third spacers prevent the cell gap of the liquid crystal inlet from being narrowed, so that a liquid crystal material may be injected easily completely. Thus, the liquid crystal material is completely filled to enhance the display quality.Type: GrantFiled: March 22, 2004Date of Patent: November 7, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Yun Jang, Hye-Rhee Han, Kye-Hun Lee, Young-Goo Song
-
Patent number: 7133108Abstract: In order to prevent irreversible deformation of column-shaped spacers which retain the gap between a pair of substrates between which the liquid crystal layer of a liquid crystal display device is interposed, spacers which assist in preventing such irreversible deformation are newly provided. According to the invention, two or more kinds of spacers which differ in height from a reference surface are disposed on one of the pair of substrates. In addition, a step pattern with which the spacers are to come into contact is formed in advance on the other of the pair of substrates so that the heights of the spacers can be made different.Type: GrantFiled: December 7, 2001Date of Patent: November 7, 2006Assignee: Hitachi, Ltd.Inventors: Hiromasa Shimizu, Tatsuo Hamamoto
-
Patent number: 7113249Abstract: The main object of the present invention is to provide a substrate for a monochrome liquid crystal display apparatus having the excellent evenness of the gap between the substrate for a monochrome liquid crystal display apparatus and the counter substrate, capable of displaying with a preferable image quality without the brightness irregularity.Type: GrantFiled: December 30, 2003Date of Patent: September 26, 2006Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tomohisa Honda, Tomonobu Sumino
-
Patent number: 7068342Abstract: A liquid crystal display panel and a method for fabricating the same are provided. The liquid crystal display panel comprises an active device array, a front substrate, at least one first spacer, and a liquid crystal layer. Wherein, the front substrate is disposed over the active device array. The first spacer is disposed between the front substrate and the active device array, and is partially embedded into an opening formed on the active device array. In addition, the liquid crystal layer is disposed between the front substrate and the active device array. Since the first spacer is embedded into the opening, the misalignment between the front substrate and the active device array can be effectively prevented, and the abnormal display due to the misalignment causing by external force can therefore be prevented.Type: GrantFiled: March 3, 2005Date of Patent: June 27, 2006Assignee: Chunghwa Picture Tubes. Ltd.Inventor: Ming-Shu Lee
-
Patent number: 7057695Abstract: A liquid crystal display includes the first and second substrates. The first substrate has a first insulating substrate. A pixel electrode is formed on the first insulating substrate. The second substrate has a second insulating substrate. A common electrode is formed on the second insulating substrate. The first and second protrusions having different thicknesses are formed on the common electrode. A liquid crystal material is injected between the first and the second substrates.Type: GrantFiled: August 14, 2001Date of Patent: June 6, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
-
Patent number: 7053971Abstract: In a liquid crystal display panel, connecting wires, having a two-layer structure formed of an indium-tin oxide (ITO) layer and a low-reflection metal layer each, are formed in a image non-display section on an upper substrate, while a shielding layer is formed in the image non-display section on a lower substrate. The gap between the upper and lower substrates is made uniform in both an image display section and the image non-display section by adjusting the thickness of the shielding layer relatively to that of the color filter layer formed in the image display section on the lower substrate or by adjusting the diameter of spacers arranged in the image non-display section relatively to that of spacers arranged in the image display section.Type: GrantFiled: July 14, 2003Date of Patent: May 30, 2006Assignee: Citzen Watch Co., Ltd.Inventor: Makoto Arai
-
Patent number: 7050140Abstract: A liquid crystal display includes a pair of opposing substrates, a liquid crystal layer sandwiched between the opposing substrates, plural scanning signal lines disposed on one of the opposing substrates, plural video signal lines intersecting the plural scanning signal lines and disposed on the one of the opposing substrates, plural pixels arranged in a matrix formed by the plural scanning signal lines and the plural video signal lines, plural spacers for establishing a spacing between the opposing substrates, color/filters disposed on another of the opposing substrates, a planarizing film disposed over the color filters, and an orientation film disposed over the planarizing film. The spacers are disposed between a planarized surface of the planarizing film and the orientation film.Type: GrantFiled: July 16, 2004Date of Patent: May 23, 2006Assignee: Hitachi, Ltd.Inventors: Kazuhiko Yanagawa, Keiichiro Ashizawa, Masahiro Ishii, Masayuki Hikiba
-
Patent number: 7038747Abstract: A color filter substrate for a liquid crystal display device includes a substrate, a black matrix having a plurality of open portions on the substrate, a color filter layer on the black matrix, and a dielectric layer including first and second layers on the color filter layer, wherein the first layer has a uniform thickness and the second layer has a convex pattern, and the first and second layers include the same material.Type: GrantFiled: November 13, 2003Date of Patent: May 2, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Jung-Jae Lee, Sam-Yeoul Kim
-
Patent number: 6987553Abstract: An LCD device includes a TFT substrate including a plurality of pixels of R, G, and B; a color filter substrate that is spaced apart from the TFT substrate; a plurality of column spacers selectively formed on one of the TFT substrate and the color filter substrate, the column spacers having a semi-spherically-shaped end portion adjacent to the other; and a liquid crystal layer injected between the TFT substrate and the color filter substrate.Type: GrantFiled: December 21, 2001Date of Patent: January 17, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Dong Ho Kang, Jae Seok Park, Chung Sun Lim, Jin Ho Kim
-
Patent number: 6985204Abstract: A liquid crystal display device includes first and second substrates, a plurality of gate lines and data lines on the first substrate, a plurality of switching devices at cross portions of the gate and data lines, a passivation layer on the plurality of switching devices, a plurality of ball spacers on the passivation layer, a color filter layer on the second substrate, and a plurality of column spacers on the color filter layer.Type: GrantFiled: May 30, 2003Date of Patent: January 10, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Byoung-Ho Lim, Tae-Yong Jung, Sung-Gu Kang
-
Patent number: 6897935Abstract: A liquid crystal display device capable of canceling out effects of signal charges, even when a columnar spacer bears signal charges, and preventing disturbance in a transverse electric field, includes pairs of columnar spacers that are disposed in two unit pixels adjacent to each other in a row direction or in a column direction. Each pair of columnar spacers is spaced from all other pairs of columnar spacers by at least two pixels of a row or a column.Type: GrantFiled: November 7, 2001Date of Patent: May 24, 2005Assignee: NEC LCD Technologies, Ltd.Inventors: Kimikazu Matsumoto, Makoto Watanabe
-
Patent number: 6850309Abstract: A liquid crystal display device comprises a pair of substrates (1, 2) each having an electrode (13, 5), a liquid crystal layer held between the pair of substrates (1, 2) in which at least two kinds of projections (20, 21) having different projection heights are formed on one of the pair of substrates (1, 2) using the same material. According to one embodiment of the present invention, the liquid crystal display device further comprises a first projection which maintains a constant space between the pair of substrates and a second projection which forms asperities on the electrode to diffuse the reflected light. These projections (20, 21) are obtained by the process comprising the steps, i.e.Type: GrantFiled: January 9, 2002Date of Patent: February 1, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Inoue, Katsuhiko Kumagawa, Akio Takimoto
-
Patent number: 6836308Abstract: A liquid crystal display device capable of obtaining high luminance and good display characteristics, a substrate for such a liquid crystal display device, and a manufacturing method of such a substrate, are provided. A color filter substrate holds, together with an array substrate, a liquid crystal having negative dielectric anisotropy. Color filters are formed on a glass substrate and a common electrode is formed on the color filters. Protrusions and auxiliary protrusions for regulating the alignment of the liquid crystal are formed on the common electrode so as to have different sectional shapes.Type: GrantFiled: August 16, 2001Date of Patent: December 28, 2004Assignee: Fujitsu Display Technologies CorporationInventors: Manabu Sawasaki, Takashi Takagi, Tomonori Tanose
-
Patent number: 6819391Abstract: A liquid crystal display panel and method for fabricating the same are disclosed in the present invention. The liquid crystal display panel includes first and second substrates facing into each other, a column spacer in a pixel region between the substrates, a dummy column spacer formed in a dummy region between the substrates, the dummy column spacer having an opened portion in at least one of corner-regions, a UV sealant formed outside the dummy column spacer between the substrates, and a liquid crystal layer between the substrates.Type: GrantFiled: May 21, 2002Date of Patent: November 16, 2004Assignee: LG. Philips LCD Co., Ltd.Inventors: Jong Woo Kim, Sung Chun Kang, Young Hun Ha
-
Patent number: 6812991Abstract: There is a liquid crystal display device with two substrates facing and spaced from each other, at least one of the substrates being transparent. Electrodes are positioned to establish an electric field in the space between the two substrates. One or more space elements are located between the substrates. One or more polymer supports are located primarily in the vicinities of the spacer elements. The polymer supports extend between the two substrates and have been polymerized in situ in response to polymerization initiating or enhancing (PIE) material carried on or within the spacer elements. Electrooptic material (e.g., liquid crystal) fills at least a portion of the space between the two substrates.Type: GrantFiled: July 15, 2003Date of Patent: November 2, 2004Assignee: Samsung Electronics Co., Ltd.Inventor: Gary A. Freeman
-
Patent number: 6806940Abstract: A liquid crystal display device includes a pair of insulating substrates bonded to each other via a sealing material, and liquid crystal filled between a pair of the insulating substrates. A cell gap is formed so as to gradually increase from the center to an end of a display area at room temperature. According to this arrangement, it is possible to smooth out a difference in thermal expansion between the liquid crystal and the sealing material when an atmospheric temperature rises, and it is possible to prevent a cell gap from being too large in the center of the display area. Consequently, an irregular display color can be eliminated.Type: GrantFiled: January 25, 2000Date of Patent: October 19, 2004Assignee: Sharp Kabushiki KaishaInventors: Takuya Noguchi, Kazuya Yoshimura
-
Patent number: 6795153Abstract: A display panel, laminated substrate, and liquid crystal cell which includes a pair of facing substrates bonded together with a sealing material. One or both of the substrates includes at least one corner portion on which a plurality of protruding pads are formed, the pads assisting in dispersion of the sealing material during bonding of the substrates to prevent sealing material from moving inwardly and possibly adversely affecting the display region of the resulting structure. A method of making such a laminated substrate is also provided.Type: GrantFiled: April 11, 2002Date of Patent: September 21, 2004Assignee: International Business Machines CorporationInventor: Shunji Suzuki
-
Patent number: 6740190Abstract: In a method for manufacturing a flat display element, a pair of motherboards are prepared, and a display forming portion is formed on each motherboard. A sealant is located on one of the motherboards so as to surround the peripheral edge portion of the display forming portion, and end spacers for maintaining a gap between the two motherboards and a tacker covering the end spacers are located on the end portions of the motherboard. The motherboards are stuck on each other with the sealant, end spacers, and tacker between them, and the stuck motherboards are aligned with each other. After the alignment, the two motherboards are tacked to each other by curing the tacker. Thereafter, the motherboards are finally bonded to each other by curing the sealant. Then, the substrates, stuck on each other with the sealant, are cut out by cutting the motherboards outside the sealant.Type: GrantFiled: November 20, 2001Date of Patent: May 25, 2004Assignee: Kabushiki Kaisha ToshibaInventor: Takeshi Takase
-
Patent number: 6734943Abstract: In a LCD panel comprising a rear substrate, a front substrate, a liquid crystal material and a spacer for making the two substrates apart a specific distance from one another, a partition wall having at least one outlet unevenly disposed on the rear substrate is provided on the periphery of a display region of the rear substrate and another partition wall that surrounds the partition wall is provided on the periphery of the display region of the front substrate. Furthermore, a sealing material for sealing the liquid crystal material within the display region is provided at a tip end of the partition wall and an alignment layer for aligning molecules of the liquid crystal material in a predetermined direction is disposed on the display region of each of the rear substrate and the front substrate.Type: GrantFiled: January 9, 2003Date of Patent: May 11, 2004Assignee: NEC LCD Technologies, Ltd.Inventor: Yoshikazu Noiri
-
Patent number: 6707525Abstract: In a liquid crystal display device in which a liquid crystal layer is sandwiched between a TFT array substrate and a color filter array substrate disposed opposite each other through a group of spacer particles, the group of spacer particles are constructed such that the spacer particles having a standard deviation of particle size distribution of not greater than 3% of average particle size are produced by a seed polymerization method and classified into groups of particles to exclude abnormal group of particles from the spacer particles.Type: GrantFiled: August 23, 2002Date of Patent: March 16, 2004Assignee: NEC LCD Technologies, Ltd.Inventor: Tatsuya Miyazaki
-
Patent number: 6690441Abstract: Disclosed herein is a multi-domain vertical alignment (MVA) mode liquid crystal display that can be produced with high reliability, that is free from lowering of luminance to be caused by disclination lines and that can display an image with high contrast over the entire display area.Type: GrantFiled: September 20, 2001Date of Patent: February 10, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventor: Norihisa Moriya
-
Patent number: 6690445Abstract: A liquid crystal display apparatus using a thin film transistor, includes first and second substrate sections and a liquid crystal layer provided between the first substrate section and the second substrate section. A supporting spacer extends from the first substrate section. The second substrate section has a concave section. The tip portion of the supporting spacer engages the concave section to keep a gap from the first substrate section.Type: GrantFiled: April 20, 2001Date of Patent: February 10, 2004Assignee: NEC LCD Technologies, Ltd.Inventor: Kimikazu Matsumoto