Patents Assigned to Display Technologies
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Publication number: 20030116764Abstract: A TFT substrate comprises a substrate, a gate electrode and a lower electrode of a capacitor formed thereon, a first insulating layer formed thereon, a channel layer above the gate electrode and a lower layer of an upper electrode of the capacitor, a channel protection layer formed on an intermediate part of said channel layer and a capacitor protection layer formed on a connection region of the lower layer, source/drain electrodes formed on said channel layer and an upper layer of the upper electrode of the capacitor formed on the lower layer and covering the capacitor protection layer, a second insulating layer covering them, a first connection hole exposing the source electrode and a second connection hole exposing a connection region of said upper layer, which are penetrating the second insulating layer, and a pixel electrode formed thereon.Type: ApplicationFiled: December 17, 2002Publication date: June 26, 2003Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Tetsuya Fujikawa, Seiji Doi
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Patent number: 6582523Abstract: An organic source boat structure for organic electro-luminescent display fabricating apparatus is provided to form an organic layer having uniform thickness. The organic source boat structure comprises: a plurality of host cells having a plurality of evaporation holes for evaporation of host organic source; a plurality of dopant cells alternatively arranged to the plurality of host cells, having a plurality of evaporation holes for evaporation of dopant organic source; a contamination control plate arranged between the host cells and the dopant cells; and a side cover to stably support the host cells and the dopant cells.Type: GrantFiled: December 28, 2001Date of Patent: June 24, 2003Assignee: Hyundai Display Technology, Inc.Inventors: Sun Woong Kim, Woo Young Kim, Sung Hoo Ju, Joo Hyeon Lee
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Patent number: 6583835Abstract: A liquid crystal display device including a pair of substrates in a spaced relationship with one another. A pair of alignment films are provided, one alignment film being formed on each substrate such that the alignment films face one another. A liquid crystal layer, including plural liquid crystals, is inserted between the pair of alignment films, wherein the alignment films impart a given pre-tilt angle to the liquid crystals. The alignment films are composed of a material containing at least two types of polymers having a prescribed initial alignment and different alignment variation rates in response to ultra-violet ray irradiation. The pre-tilt angle being adjusted, without rubbing the alignment films, through ultraviolet exposure of the alignment films.Type: GrantFiled: July 31, 2000Date of Patent: June 24, 2003Assignee: Fujitsu Display Technologies CorporationInventors: Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi, Kenji Okamoto
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Publication number: 20030112385Abstract: A liquid crystal display device includes a liquid crystal panel and at least one attachment portion for attaching said liquid crystal panel to a receiving body. The attachment portion is provided with a variable mechanism for varying the mode of attaching the attachment portion to the receiving body.Type: ApplicationFiled: December 4, 2002Publication date: June 19, 2003Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventor: Kazuhiro Okamoto
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Publication number: 20030112384Abstract: A substrate for a liquid crystal display device and a liquid crystal display device equipped therewith, produced at decreased costs and offering a display of good quality. A substrate for a liquid crystal display device comprises a TFT substrate for holding opposing substrates arranged being opposed to each other as well as a liquid crystal composition obtained by mixing a monomer into liquid crystals, a plurality of bus lines and formed on the TFT substrate in a manner of intersecting each other through an insulating film, thin-film transistors formed close to positions where the plurality of bus lines and intersect each other, a plurality of thin-film transistors for polymerization formed for applying a voltage to the pixel electrodes at the time of polymerizing the monomer, and a first common electrode wiring for polymerization electrically connected to the gate electrodes of the plurality of thin-film transistors for polymerization.Type: ApplicationFiled: December 4, 2002Publication date: June 19, 2003Applicant: Fujitsu Display Technologies CorporationInventors: Yoshinori Tanaka, Yoji Taniguchi, Yoji Nagase, Tomoyuki Miyata
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Patent number: 6580212Abstract: A display device comprising: a light-emissive structure including two regions of light emissive material for emitting light in a viewing direction, the regions being spaced apart in a direction perpendicular to the viewing direction the light-emissive structure being capable of guiding light emitted from one of the light-emissive regions towards the other emissive region; and a barrier structure located between the light-emissive regions for inhibiting the propagation of light guided from the said one of the light-emissive regions to the other light-emissive region.Type: GrantFiled: May 31, 2000Date of Patent: June 17, 2003Assignee: Cambridge Display Technology Ltd.Inventor: Richard Henry Friend
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Patent number: 6576093Abstract: A method of reducing black spots in a light-emitting device comprising a light-emissive material interposed between a first electrode and a second electrode such that the first and second electrodes are capable of injecting charge carriers into the light-emissive organic material, the method comprising: forming at least one of the first and second electrodes by depositing onto the light-emissive organic material a first layer of a material by a deposition technique which intrinsically results in undesirable pin-holes; and depositing a second layer of a material onto the first layer by a conformable deposition technique.Type: GrantFiled: September 24, 2001Date of Patent: June 10, 2003Assignee: Cambridge Display Technology, Ltd.Inventors: Jeremy Henley Burroughes, Julian Charles Carter, Stephen Karl Heeks
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Patent number: 6573964Abstract: A pair of substrates is disposed in parallel at a gap distance therebetween. Liquid crystal material containing liquid crystal molecules having negative dielectric anisotropy is filled in between the substrates. The liquid crystal molecules are homeotropically aligned. On the opposing surface of one of the substrates, pixel electrodes are disposed in a matrix form and data bus lines and gate bus lines are disposed. The gate bus line passes an inner area of each pixel electrode. Switching elements are formed on the opposing surface of the substrate. Each switching element is controlled by the gate bus line at another row. Protrusions are formed on the opposing surface of one of the substrates. The protrusions divide an area of the pixel electrode into a plurality of areas and each is bent on the gate bus line. A domain border regulating unit is formed on the opposing surface of the other of the substrates. The protrusions and domain border regulating unit define the borders of each domain.Type: GrantFiled: December 23, 1999Date of Patent: June 3, 2003Assignee: Fujitsu Display Technologies CorporationInventors: Hideaki Takizawa, Satoru Kawai, Tsuyoshi Kamada
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Patent number: 6558219Abstract: A method of forming an electroluminescent device, including the steps of forming a first charge carrier injecting layer for injecting charge carriers of a first polarity, forming an organic charge carrier transport layer over the first charge carrier injecting layer, the transport layer having an electronic and/or optical property which varies across the thickness of the transport layer, forming an organic light emissive layer over the transport layer, and forming a second charge carrier injecting layer over the light emissive layer for injecting charge carriers of a second polarity.Type: GrantFiled: September 6, 2000Date of Patent: May 6, 2003Assignee: Cambridge Display Technology LimitedInventors: Jeremy Henley Burroughes, Christopher John Bright, Karl Pichler, Peter Ho
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Patent number: 6559593Abstract: A method of sputter deposition onto an organic material, wherein the discharge gas of the sputtering operation is a gas having a spectrum of light emission of a lower energy than that of argon.Type: GrantFiled: August 4, 2000Date of Patent: May 6, 2003Assignee: Cambridge Display Technology LimitedInventors: Stephen Karl Heeks, Julian Charles Carter
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Patent number: 6559256Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: April 28, 2000Date of Patent: May 6, 2003Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Patent number: 6552766Abstract: A reflection liquid crystal display device includes: a liquid crystal layer; a transparent insulating layer provided in an optical path of a light incident on the liquid crystal layer, the transparent insulating layer having a refractive index substantially equal to one of refractive indexes for ordinary ray and for extraordinary ray of the liquid crystal layer; a reflector for reflecting the light passing through the liquid crystal layer and the transparent insulating layer; and first and second substrates provided on first and second sides of an optical member so as to oppose each other, the optical member being formed of the liquid crystal layer, the transparent insulating layer, and the reflector, wherein an interface formed between the liquid crystal layer and the transparent insulating layer has a plurality of slant parts of substantially the same shape, the slant parts each having a predetermined inclination with respect to the reflector.Type: GrantFiled: June 14, 2001Date of Patent: April 22, 2003Assignee: Fujitsu Display Technologies CorporationInventors: Kazutaka Hanaoka, Yuichi Inoue
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Patent number: 6551727Abstract: An electroluminescent device comprising: a first charge-carrier injecting layer for injecting positive charge carriers and a second charge-carrier injecting layer for injecting negative charge carriers, at least one of the charge-carrier injecting layers being patterned so as to comprise spaced-apart charge-injecting regions; an organic light-emitting layer located between the first and second charge-carrier injecting layers; and an unpatterned conductive polymer layer located between the organic light-emitting layer and the patterned charge-carrier injecting layer, the resistivity of the conductive polymer layer being sufficiently low to allow charge carriers to flow through it from the charge-injecting regions to generate light in the organic light-emitting layer but sufficiently high to resist lateral spreading of charge carriers beyond the charge-injecting regions.Type: GrantFiled: October 15, 2001Date of Patent: April 22, 2003Assignee: Cambridge Display Technology LimitedInventors: Carl Robert Towns, Stephen Karl Heeks, Julian Charles Carter
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Patent number: 6547616Abstract: An image display panel is prepared which has in an in-plane thereof an image display area for displaying an image and a framing area surrounding the image display area. Light shielding ink is supplied from an ink supply source to at least a partial surface area of the framing area of the image display panel. In this case, the ink supply source is made not in contact with the image display panel. Even if the frame structure of an image display device such as a liquid crystal display is made narrow, the image quality in a peripheral area of the image display area becomes hard to be lowered.Type: GrantFiled: October 13, 1998Date of Patent: April 15, 2003Assignee: Fujitsu Display Technologies CorporationInventors: Noriaki Furukawa, Taiji Yuhara, Toshiro Katsube, Satoru Imai, Tsukasa Adachi
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Patent number: 6549250Abstract: In the semiconductor integrated circuit, an auxiliary conductor is formed in a wiring layer beneath a signal wire which connects a position Vin estimated to generate static electricity and a position Vout to be protected from static electricity. The capacitance of a glass substrate can be reduced to {fraction (1/1000)} of the capacitance of the interlayer insulating film. Accordingly, even if a voltage of 1000 to 2000 V is generated between a substrate conveying system and the auxiliary conductor, the glass substrate works as a dielectric, and the voltage generated between the auxiliary conductor and signal wire is only several volts.Type: GrantFiled: February 15, 2001Date of Patent: April 15, 2003Assignee: Fujitsu Display Technologies CorporationInventor: Keizo Morita
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Publication number: 20030063251Abstract: A liquid crystal display device has a liquid crystal inserted between first and second substrates and surrounded by a peripheral seal. The liquid crystal is dripped onto the first substrate in an area defined by the seal of the first substrate. The first substrate and the second substrate are joined or bonded together under pressure in a vacuum chamber. The chamber is then exposed to the atmosphere while keeping the first substrate and the second substrate under pressure. The pressure is then released and thereafter light is irradiated onto the peripheral seal. The vacuum chamber includes upper and lower surface plates to support the substrates. The surface plate includes an electrostatic chuck and a vacuum attraction passage provided in the chuck.Type: ApplicationFiled: September 24, 2002Publication date: April 3, 2003Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Satoshi Murata, Hiroyuki Sugimura, Norimichi Nakayama
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Publication number: 20030063249Abstract: The invention relates to a substrate for use in a liquid crystal display of a CF-on-TFT structure in which a color filter is formed on the side of an array substrate in which a switching element is formed, and has an object to provide a substrate for use in a liquid crystal display, which enables simplification of a manufacturing process typified by a photolithography process and has high reliability. The substrate for use in the liquid crystal display is constructed to include external connection terminals which include first terminal electrodes electrically connected to gate bus lines led out from a plurality of pixel regions arranged on a glass substrate in a matrix form, second terminal electrodes formed of forming material of a pixel electrode and directly on the glass substrate, and electrode coupling regions for electrically connecting the first and the second terminal electrodes, and which electrically connect an external circuit and the gate bus lines.Type: ApplicationFiled: September 27, 2002Publication date: April 3, 2003Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Atuyuki Hoshino, Shiro Hirota, Naoto Kondo, Tetsuya Fujikawa, Masahiro Kihara, Katsunori Misaki, Seiji Doi, Tomoshige Oda, Akira Komorita, Akihiro Matsui, Manabu Sawasaki, Masahiro Ikeda, Takashi Takagi, Tomonori Tanose, Takuya Saguchi, Hidetoshi Sukenori, Hiroyasu Inoue
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Patent number: 6541790Abstract: An organic light-emitting device, comprising: a substrate (1); a first conductive layer (3) formed over the substrate (1); at least one layer (5) of a light-emissive organic material formed over the first conductive layer (3); a barrier layer (7) formed over the at least one organic layer (5) which acts to protect the at least one layer of organic material; and a second conductive layer (9), preferably a patterned sputtered layer, formed over the barrier layer (7).Type: GrantFiled: May 6, 1999Date of Patent: April 1, 2003Assignee: Cambridge Display Technology LimitedInventor: Karl Pichler
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Publication number: 20030058374Abstract: Fine electrode patterns pattern-formed in the shape of fine teeth of a comb bilaterally symmetrical with respect to band-shaped portions are formed at even intervals in a pixel electrode, and band-shaped dielectric layers are pattern-formed at even intervals to cover the fine electrode patterns in a display pixel. By the existence of the dielectric layer and the fine electrode pattern complementing this, a portion formed with these layer and fine electrode pattern is a high threshold voltage region, and relatively, a low threshold voltage region where the dielectric layer does not exist is formed. By the aforementioned construction, it becomes possible to improve a delay in response speed at low gray levels and increase the speed of halftone response, whereby a very reliable image display having moving image performance almost equal to that of a CRT is realized.Type: ApplicationFiled: September 5, 2002Publication date: March 27, 2003Applicant: Fujitsu Display Technologies CorporationInventors: Arihiro Takeda, Shingo Kataoka, Kimiaki Nakamura, Hideaki Tsuda, Takahiro Sasaki, Kazuya Ueda, Masahiro Ikeda, Katsunori Misaki, Naoto Kondo, Akira Komorita
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Patent number: D475049Type: GrantFiled: April 26, 2002Date of Patent: May 27, 2003Assignee: Topvision Display Technologies, Inc.Inventor: Chia-Hsing Duan