Formed With Particular Alignment Technique Patents (Class 349/94)
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Patent number: 11409169Abstract: The present invention provides a liquid crystal display panel and a display device. The liquid crystal display panel includes at least two display layers arranged in a stack. Each of the display layers comprises a liquid crystal layer, each of the liquid crystal layers comprises at least one pixel region and at least one non-pixel region, wherein a total coverage area of the at least one pixel region of the at least two display layers is greater than or equal to a display area of the liquid crystal display panel, and data signals of the at least two display layers are independently controlled. The present invention may achieve higher resolution display of products by the solution mentioned above.Type: GrantFiled: December 16, 2019Date of Patent: August 9, 2022Inventor: Jiangchuan Chen
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Patent number: 11281033Abstract: A display system and a display control method of the display system are provided. The display system includes a display device, at least two layers of liquid crystal cells on a light-emitting side of the display device, and a controller device. The display device is configured to display a display picture; the at least two lavers of liquid crystal cells are configured to control an exit angle of light of the display picture; the controller device is configured to control positions and/or widths of light-transmitting regions and light-shielding regions of each layer of the liquid crystal cells to control a display mode of the display picture. The display system can control the positions and widths of the light-transmitting regions and the light-shielding regions formed on each liquid crystal cell according to actual needs, thereby realizing switching among various display modes.Type: GrantFiled: April 1, 2019Date of Patent: March 22, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yang You, Yun Qiu, Ruizhi Yang, Ruiyong Wang, Zhidong Wang, Zhenhua Lv
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Patent number: 9429787Abstract: An embodiment of the present invention discloses a transparent display unit with improved transmittance. The transparent display unit comprises: an upper substrate comprising an upper transparent electrode and an upper alignment film in sequence from top to bottom; a lower substrate comprising a lower transparent electrode and a lower alignment film in sequence from bottom to top; and at least a colorful holographic polymer dispersed liquid crystal (H-PDLC) layer located between the upper substrate and the lower substrate.Type: GrantFiled: October 11, 2012Date of Patent: August 30, 2016Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Miki Kashima
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Publication number: 20150092126Abstract: A method of producing a lenticular device for an autostereoscopic display apparatus comprises providing a substrate having a surface which corresponds in shape to a desired surface profile for the array of lenticular elements, and providing an optical layer mixture of an optically birefringent material and a polymer precursor over the substrate surface. The optical layer is exposed to a stimulus for polymerizing the polymer precursor to have at least a polymer surface layer, thereby enclosing the material between the polymerized material and the surface to define lenticular elements. This method allows a simple polymerization process, forming a single layer, to complete the LC cell formation in the desired lenticular array shape.Type: ApplicationFiled: December 8, 2014Publication date: April 2, 2015Inventors: HANS ZUIDEMA, HENRICUS J.C. KUIJPERS, ROEL PENTERMAN
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Patent number: 8994898Abstract: The present invention provides a COF base tape. The COF base tape includes: a connected lead being configured to connect with a connected terminal of a liquid crystal glass; an alignment mark being set on the two sides of the connected lead being configured to align with a mark of the connected terminal, an area of the alignment mark thereof being light transparency. The present invention also provides a method for manufacturing the COF base tape and liquid crystal display module. The embodiment of the invention of a COF base tape and manufacturing method thereof and liquid crystal display module including the same enhances the strength of the COF base tape edge and raises the accurate alignment and operationally of the COF base tap connected with liquid glass. The present invention can save the material and reduce the cost of the art.Type: GrantFiled: October 31, 2012Date of Patent: March 31, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Chengwen Que, Dehua Li
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Patent number: 8975756Abstract: An electric terminal device is provided with glass substrate 11, glass-substrate-side electric terminals 15 formed on glass substrate 11, tape carrier packages 16a and 16b which are larger in thermal expansion rate than glass substrate 11, and tape-side electric terminals 21 provided to correspond to glass-substrate-side electric terminals 15. Tape-side electric terminals 21 include alignment terminals 25 to align with terminals at the outer most edges of glass-substrate-side electric terminals 15, and connecting terminals 26 electrically and mechanically connected to glass-substrate-side electric terminals 15 due to thermal expansion of tape carrier packages 16a and 16b by thermo-compression bonding on a condition that alignment terminals 25 of tape-side electric terminals 21 are aligned with the terminals of glass-substrate-side electric terminals 15.Type: GrantFiled: April 13, 2007Date of Patent: March 10, 2015Assignee: Japan Display Central Inc.Inventor: Iwane Ichiyama
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Patent number: 8922757Abstract: A photo-alignment apparatus is provided, which includes an exposure machine, at least one mask and a photo-alignment area. The exposure machine includes a light source, a polarization plate, and a multilayer splitter. The light source emits an unpolarized light. The polarization plate receives the unpolarized light and converts the unpolarized light into a polarized light. The multilayer splitter split the polarized light into a first light beam and a second light beam. The mask includes at least two transmission portions which allow the first and second light beams to be transmitted therethrough and be projected onto the photo-alignment area for exposure thereto.Type: GrantFiled: August 23, 2012Date of Patent: December 30, 2014Assignee: Innolux CorporationInventors: Hung-I Tseng, Ker-Yih Kao
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Patent number: 8866997Abstract: Linear photo-oriented polymer (LPP) layers are situated to align liquid crystals in a liquid crystal polymer (LCP) layer situated at or on the LPP layers. The LCP layer can include a guest such as a fluorophore that aligns with the liquid crystal so as to emit polarized fluorescence in response to an excitation beam. Layer LPP/LCP structures can be provided as light emitters, patterned polarizers, patterned retarders and other devices based on selection of one or more guest materials included in the LCP and alignable with the liquid crystal.Type: GrantFiled: November 2, 2011Date of Patent: October 21, 2014Assignee: Arizona Board of Regents on behalf of the University of ArizonaInventors: Stanley Pau, Arshad S. Sayyad, Graham B. Myhre
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Patent number: 8830423Abstract: A method of making a liquid crystal device is provided, the method comprising (i) providing a cell containing a mixture of a liquid crystal and pre-polymer (ii) applying a stimulus to arrange the liquid crystal in a first predetermined state and (iii) subsequent to, or contemporaneously with, step (ii), causing the pre-polymer to form polymer when the liquid crystal is in a second predetermined state, wherein steps (ii) and (iii) are performed a plurality of times.Type: GrantFiled: November 27, 2008Date of Patent: September 9, 2014Assignee: Merck Patent GmbHInventors: Bo-Ru Yang, Steve Elston, Peter Raynes, Han-Ping Shieh
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Patent number: 8749466Abstract: A mono domain vertical alignment type liquid crystal display apparatus to be multiplex driven is provided whose display uniformity at a large pretilt angle (near 90°) is improved. Waveform A is applied to a liquid crystal cell of a mono domain vertical alignment type, the waveform A having a duty not lower than 4 and a frame frequency of f. The frame frequency f is determined from a pretilt angle ?p, and is a frequency not lower than 60 Hz at a pretilt angle of 88.5°??p<89.6° or a frequency not lower than [120×(?p?89.6)+60] Hz at a pretilt angle of 89.6°??p?89.9°.Type: GrantFiled: May 2, 2008Date of Patent: June 10, 2014Assignee: Stanley Electric Co., Ltd.Inventor: Yoshihisa Iwamoto
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Patent number: 8743318Abstract: A display device may be constructed with a first substrate having a first electrode and a second electrode, a second substrate formed on the first substrate and facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The liquid crystal layer may be constructed with a polymer-stabilized liquid crystal (PSLC), and a size of domains of the PSLC is 200 nm or less.Type: GrantFiled: August 29, 2011Date of Patent: June 3, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jong-In Baek, Won-Sang Park, Jae-Hyun Kim, Jae-Ik Lim
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Publication number: 20140132893Abstract: A method for trimming at least one photonic device, and comprising obtaining one or more photonic devices including at least one component for supporting propagation of electromagnetic radiation and a covering layer comprising a polymerisable liquid crystal. The method further comprises determining, for a selected photonic device selected from the one or more photonic devices, a selected liquid crystal orienting condition to be applied to the polymerisable liquid crystal resulting in a preferred value for an electromagnetic property of the selected photonic device. The method also comprises, while applying the selected liquid crystal orienting condition, polymerizing the polymerisable liquid crystal cladding layer of the selected photonic device, thus obtaining a polymerized liquid crystal on the selected photonic device.Type: ApplicationFiled: June 28, 2012Publication date: May 15, 2014Inventors: Roeland Baets, Wout De Cort, Jeroen Beeckman, Kristiaan Neyts
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Patent number: 8711300Abstract: In a process for producing a liquid crystal element comprising an alignment-treated substrate and a layer of polymer liquid crystal having a pattern, mesogenic groups in cross-linkable polymer liquid crystal are aligned, and the cross-linkable polymer liquid crystal is cross-linked while the mold is pressed against the layer of cross-linkable polymer liquid crystal, at a temperature higher than the glass transition temperature of the cross-linkable polymer liquid crystal and lower than the clearing point temperature of the cross-linkable polymer liquid crystal.Type: GrantFiled: September 10, 2012Date of Patent: April 29, 2014Assignee: Asahi Glass Company, LimitedInventors: Yuji Yamamoto, Yuriko Kaida, Ryohei Koguchi, Hiroshi Sakamoto
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Patent number: 8704978Abstract: A LCD panel includes a gate driver, an active-matrix array and a switching circuit. The gate driver is disposed on a thin film transistor substrate, and includes a shift register, wherein the shift register has plural output terminals for successively outputting plural gate driving signals. The active-matrix array is disposed on the thin film transistor substrate, and includes plural gate lines, wherein the gate lines are connected with the output terminals of the shift register. The switching circuit is disposed on the thin film transistor substrate, and includes plural switching units, wherein each of the switching units has a first terminal electrically connected with one of the output terminals of the shift register, a control terminal electrically connected with a first input pad, and a second terminal electrically connected with a second input pad.Type: GrantFiled: August 26, 2011Date of Patent: April 22, 2014Assignee: Au Optronics Corp.Inventors: Jing-Ru Chen, Wei-Hsien Wu, Cheng-Hung Chen
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Patent number: 8670090Abstract: The present invention provides a liquid crystal display device capable of improving display qualities in a frame region and a production method thereof.Type: GrantFiled: May 1, 2008Date of Patent: March 11, 2014Assignee: Sharp Kabushiki KaishaInventor: Hidetoshi Nakagawa
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Method for manufacturing liquid crystal display device including forming alignment sustaining layers
Patent number: 8654288Abstract: A method for fabricating a liquid crystal display device includes providing an LCD panel that includes a photopolymerizable compound in its liquid crystal layer; and forming alignment sustaining layers by polymerizing the photopolymerizable compound in the liquid crystal layer of the LCD panel with the liquid crystal layer irradiated with light and supplied with a voltage simultaneously. The forming the alignment sustaining layers includes the steps of: i) applying a predetermined voltage between a pixel electrode and a counter electrode while a switching element is in ON state; and ii) changing the voltage at a storage capacitor counter electrode into a voltage, of which the polarity is opposite to a voltage at the storage capacitor counter electrode in the step i), after the switching element in ON state has been turned OFF.Type: GrantFiled: August 3, 2009Date of Patent: February 18, 2014Assignee: Sharp Kabushiki KaishaInventors: Hisashi Nagata, Junichi Yamada -
Patent number: 8525956Abstract: A manufacturing method of a liquid crystal display device having a liquid crystal layer between a pair of substrates. The method includes disposing between the pair of substrates a liquid crystal composition including liquid crystal molecules and a polymerizable compound that is polymerizable by active energy rays or a combination of active energy rays and heat, and polymerizing the polymerizable compound by active energy ray irradiation, or by both active energy ray irradiation and heat with and/or without applying voltages to the liquid crystal layer, so that a polymer formed by the polymerizing process decides an alignment of the liquid crystal molecules when no voltage is applied. The amount of active energy ray irradiation is decided so that at least some of the polymerizable compound remains in the liquid crystal layer after the polymerization process. Further the amount of the polymerizable compound that remains is not more than a predetermined value.Type: GrantFiled: June 26, 2012Date of Patent: September 3, 2013Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Yuichi Inoue, Kazutaka Hanaoka, Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro
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Patent number: 8294851Abstract: A method for manufacturing a liquid crystal display panel including the steps is provided. A semi-finished liquid crystal display panel including a first substrate, a second substrate, a liquid crystal layer, an opposing electrode, scan lines, data lines, polymerizable molecules, pixel structures, first capacitor bottom electrodes, and second capacitor bottom electrodes is provided. Each pixel structure has a first pixel electrode and a second pixel electrode, and the blocks of the liquid crystal layer corresponding to the first pixel electrodes and the second pixel electrodes are respectively a plurality of first blocks and a plurality of second blocks. Then, a first voltage difference and a second voltage difference are respectively formed in the first blocks and the second blocks respectively, wherein the first voltage difference is different from the second voltage difference. Accordingly, the polymerizable molecules are polymerized to form the liquid crystal display panel.Type: GrantFiled: June 4, 2010Date of Patent: October 23, 2012Assignee: Au Optronics CorporationInventors: Te-Wei Chan, Chieh-Wei Chen, Cheng-Han Tsao, Chung-Yi Chiu
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Patent number: 8243241Abstract: A liquid crystal display device including first and second substrates with a liquid crystal layer therebetween. A first electrode is formed on the first substrate, and a second electrode is formed on the second substrate. The first electrode is divided into at least two regions such that at least two domains of different liquid crystal orientation directions are defined within a single pixel. A first of the at least two regions and a second of the at least two regions are located in a diagonal manner with respect to each other, and each include a slit pattern. A polymer, formed from a polymerizable compound that has been polymerized, is formed between the first and second substrates, wherein the amount of the polymerizable compound remaining in the liquid crystal layer after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal layer.Type: GrantFiled: October 29, 2010Date of Patent: August 14, 2012Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Yuichi Inoue, Kazutaka Hanaoka, Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro
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Optical low-pass filter, camera, imaging apparatus, and method for producing optical low-pass filter
Patent number: 8194209Abstract: An optical low-pass filter is constituted with a liquid crystal substrate including a layer of liquid crystal. The optical low-pass filter includes: a first liquid crystal part in which the liquid crystal is aligned along a first direction; and a second liquid crystal part in which the liquid crystal is aligned along a second direction different from the first direction. The first liquid crystal part and the second liquid crystal part are disposed in an alternately repeated fashion.Type: GrantFiled: July 4, 2007Date of Patent: June 5, 2012Assignee: Nikon CorporationInventor: Toru Iwane -
Patent number: 8139011Abstract: A liquid crystal display device is disclosed comprising a display part, a scanning line driving circuit, a signal line driving circuit, a counter electrode driving circuit for providing counter electrodes with a counter electrode driving signal reversed in phase from a signal line driving circuit, an auxiliary capacitance having one end connected to an output end of each of switching elements, and an auxiliary capacitance line driving circuit for driving a plurality of auxiliary capacitance lines arranged in rows and has ends of such auxiliary capacitances in each row commonly connected thereto, wherein the auxiliary capacitance line driving circuit is adapted to apply a first voltage to the auxiliary capacitance lines for a first half cycle of the counter electrode driving signal and apply a second voltage thereto for a (p+½)th cycle after the first period of the counter electrode driving signal where p is 0 or a natural number, said auxiliary capacitance line driving circuit making the auxiliary capacitanceType: GrantFiled: October 31, 2008Date of Patent: March 20, 2012Assignee: Casio Computer Co., Ltd.Inventor: Hiromitsu Ishii
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Patent number: 8094282Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, each of the first and second substrates having an image-displaying sub pixel and a viewing angle-adjusting sub pixel; a thin film transistor corresponding to each of the image-displaying sub pixel and the viewing angle-adjusting sub pixel; a liquid crystal display layer between the first and second substrates, the liquid crystal layer having a negative dielectric constant anisotropy; a first field distortion means in the image-displaying sub pixel; and a second field distortion means in the viewing angle-adjusting sub pixel.Type: GrantFiled: September 6, 2011Date of Patent: January 10, 2012Assignee: LG Display Co., Ltd.Inventors: Tae-Han Kim, In-Hyuk Song, Kyung-Eon Lee
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Patent number: 8054439Abstract: A method for fabricating a liquid crystal display (LCD) is provided. The method includes the steps stated below. At first, providing an LCD panel including a first substrate, a second substrate and a liquid crystal layer therebetween. The liquid crystal layer includes several photo-sensitive monomers and several liquid crystal molecules. The LCD panel has at least a first pixel and a second pixel. Afterwards, correspondingly driving the first pixel and the second pixel by the first voltage and the second voltage. At last, applying a ultra-violet source onto the LCD panel to enable several photo-sensitive monomers to polymerize several alignment polymers on the first substrate and the second substrate.Type: GrantFiled: October 21, 2009Date of Patent: November 8, 2011Assignee: AU Optronics Corp.Inventor: Hao-Yu Chang
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Patent number: 8045071Abstract: Disclosed herein is a liquid crystal apparatus, including, a pair of substrates; and a liquid crystal layer held between the substrates, the liquid crystal layer having positive dielectric anisotropy, the liquid crystal of the liquid crystal layer exhibiting, when no voltage is applied thereto, an orientation direction parallel to a transverse electric field which is generated when a voltage is applied to the liquid crystal layer.Type: GrantFiled: January 16, 2009Date of Patent: October 25, 2011Assignee: Sony CorporationInventors: Masaaki Kabe, Koji Noguchi, Hideaki Tsuda
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Patent number: 8045099Abstract: This invention provides a liquid crystal display device which can contribute to the stabilization of alignment of a liquid crystal and can improve the response speed. The liquid crystal display device comprises a pair of substrates and a liquid crystal layer held between the substrates. At least one of the pair of substrates has a polymer on its surface in contact with the liquid crystal layer. The surface shape of the polymer is in a substantially saw form as viewed from the cross-sectional direction of the substrate. The inclination azimuth of the inclination surface of the polymer is substantially the same as the liquid crystal alignment upon the application of the voltage. Preferably, the surface of the polymer has an approximately wedge shape as viewed from the vertical direction of the substrate, and the azimuth of the apex is approximately opposite to the liquid crystal alignment upon the application of the voltage.Type: GrantFiled: April 16, 2007Date of Patent: October 25, 2011Assignee: Sharp Kabushiki KaishaInventors: Kunihiro Tashiro, Takahiro Sasaki, Toshihiro Matsumoto
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Patent number: 8040462Abstract: The present invention can provide an optical device, an optical uniform device, an optical sheet and a backlight unit and a display apparatus. In the present invention, a lamp image can be removed by uniformly emitting incident light from a plurality of light sources. Further, even if a distance between a light source and an optical device and between a light source and an optical uniform device are short, warpage due to heat generated from a light source does not occur.Type: GrantFiled: April 17, 2008Date of Patent: October 18, 2011Assignee: Toppan Printing Co., Ltd.Inventor: Tomohiro Nakagome
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Patent number: 8035788Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, each of the first and second substrates having an image-displaying sub pixel and a viewing angle-adjusting sub pixel; a thin film transistor corresponding to each of the image-displaying sub pixel and the viewing angle-adjusting sub pixel; a liquid crystal display layer between the first and second substrates, the liquid crystal layer having a negative dielectric constant anisotropy; a first field distortion means in the image-displaying sub pixel; and a second field distortion means in the viewing angle-adjusting sub pixel.Type: GrantFiled: June 17, 2008Date of Patent: October 11, 2011Assignee: LG Display Co., Ltd.Inventors: Tae-Han Kim, In-Hyuk Song, Kyung-Eon Lee
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Publication number: 20110205467Abstract: A liquid crystal display device 100 includes a liquid crystal layer 1 including polymer; a front substrate 3 and a rear substrate 2 containing the liquid crystal layer 1 therebetween; a pair of electrodes 4 and 8 applying a voltage on the liquid crystal layer 1; polarization plates 16 and 15 placed respectively on the front side of the front substrate 3 and the rear side of the rear substrate 2; and first and second alignment films 13 and 12 formed respectively between the liquid crystal layer 1 and the front substrate 3 and between the liquid crystal layer 1 and the rear substrate 2.Type: ApplicationFiled: October 13, 2009Publication date: August 25, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Eiji Satoh
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Patent number: 7999894Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.Type: GrantFiled: March 20, 2009Date of Patent: August 16, 2011Assignee: Casio Computer Co., LtdInventors: Kazuhiko Ohsawa, Tetsushi Yoshida
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Patent number: 7910919Abstract: An organic light emitting display and a fabricating method thereof in which an alignment mark is formed in the non-display region. The organic light emitting display includes a substrate having a display region and a non-display region; a buffer layer formed the overall substrate; a gate insulating layer; a gate electrode formed on the gate insulating layer corresponding to the active layer; an interlayer dielectric layer formed on the gate insulating layer; a source/drain electrode formed on the interlayer dielectric layer and electrically coupled to the active layer; an insulating layer formed on the source/drain electrode; and an organic light emitting diode formed on the insulating layer and electrically coupled to the source/drain electrode. Further, the organic light emitting display includes an alignment mark formed on one of the substrate and the buffer layer.Type: GrantFiled: December 20, 2007Date of Patent: March 22, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Taehoon Yang, Jinwook Seo, Byoungkeon Park, Kiyong Lee, Seihwan Jung
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Patent number: 7910178Abstract: A liquid crystal display device which is capable of further decreasing the cost of production yet obtaining a good liquid crystal alignment, and a method of producing the same. The liquid crystal display device comprises a pair of substrates arranged facing each other; a liquid crystal sealed between the substrates; and an ultraviolet ray-cured product for controlling the alignment of the liquid crystal. The ultraviolet ray-cured product is formed near the interfaces to the substrates by polymerizing a polymerizable component mixed in the liquid crystal with light. The polymerizable component contains a polyfunctional monomer having a symmetrical structure, and the ultraviolet ray-cured product has a side-chain structure.Type: GrantFiled: April 5, 2005Date of Patent: March 22, 2011Assignees: Fujitsu Limited, AU Optronics CorporationInventors: Shingo Kataoka, Katsufumi Ohmuro, Hideaki Tsuda, Jin Hirosawa
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Patent number: 7903215Abstract: The invention relates to a liquid crystal display in which a polymeric component included in a liquid crystal layer is polymerized while adjusting a voltage applied to the liquid crystal layer to regulate the direction of alignment of liquid crystal molecules during polymerization and a method of manufacturing the same. The invention provides a liquid crystal display in which image sticking is mitigated and a method of manufacturing the same. In a method of manufacturing a liquid crystal display in which a liquid crystal composition including a polymeric component that is optically or thermally polymerized is sealed between substrates and in which the polymeric component is polymerized while applying a voltage to the liquid crystal composition to regulate the direction of alignment of liquid crystal molecules during driving, a configuration is employed such that a polymerization initiator in the liquid crystal composition has a concentration x that satisfies 0?x?0.002 (% by weight).Type: GrantFiled: May 18, 2007Date of Patent: March 8, 2011Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Hiroyasu Inoue, Yuji Nakahata, Kengo Kanii, Kazutaka Hanaoka, Masakazu Shibasaki, Yuichi Inoue
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Patent number: 7843531Abstract: To provide a liquid crystal display device of high image quality, and a manufacturing method therefor. A polymerizable compound in a liquid crystal composition is polymerized in a state that liquid crystal molecules present in a gap between a pixel electrode and at least either one of signal electrodes and scanning electrodes are tilted in a direction from the at least either one of the signal electrodes and the scanning electrodes toward the pixel electrode. Preferably, the amount of the polymerizable compound remaining in the liquid crystal phase after the polymerization is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal. In a seal section surrounding the liquid crystal layer, a second seal wall is preferably provided at a position opposite to the liquid crystal injection inlet in the non-display section.Type: GrantFiled: February 22, 2005Date of Patent: November 30, 2010Assignee: Sharp Kabushiki KaishaInventors: Yohei Nakanishi, Yuichi Inoue, Kazutaka Hanaoka, Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro
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Patent number: 7843525Abstract: A liquid crystal display apparatus which exhausts heat generated within the apparatus efficiently, and reduces temperature increase in the heat-frail sections is provided. A circuit board mounting surface at the back of the liquid crystal monitor unit is divided into a plurality of board mount areas using the vertically extending reinforcement members. A signal circuit board section and TCON (Timing control) circuit board section are disposed in the same board mount area which is different from the partition where the power supply circuit board section resides. By arranging this way, the temperature increase in the heat-frail sections of the signal circuit board section is reduced, and the hot air heated by the power supply circuit board in the power supply circuit board section goes up along the reinforcement members, thus an efficient heat exhaustion is achieved.Type: GrantFiled: December 5, 2008Date of Patent: November 30, 2010Assignee: Hitachi, Ltd.Inventors: Makoto Tsumura, Shigeo Ohashi, Nobuyuki Kaku
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Patent number: 7754525Abstract: The present invention provides a film forming method of a uniform semiconductor layer having a large area at a low cost and equipment to form said semiconductor layer, by blowing gas against a coated layer to shorten the drying time and to decrease uneven drying. A film forming method of a semiconductor layer characterized by being provided, after a process to coat a semiconductor material containing a solvent on a substrate, with a process to blow gas against a coated layer of a semiconductor layer containing said solvent to evaporate the solvent.Type: GrantFiled: November 9, 2006Date of Patent: July 13, 2010Assignee: Konica Minolta Holdings Inc.Inventors: Jun Yamada, Masakazu Okada, Mitsuyoshi Miyai
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Patent number: 7733442Abstract: 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: March 24, 2009Date of Patent: June 8, 2010Assignee: Seiko Epson CorporationInventor: Masami Uchida
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Patent number: 7728934Abstract: A method for fabricating a liquid crystal display (LCD) is provided. The method includes the steps stated below. At first, providing an LCD panel including a first substrate, a second substrate and a liquid crystal layer therebetween. The liquid crystal layer includes several photo-sensitive monomers and several liquid crystal molecules. The LCD panel has at least a first pixel and a second pixel. Afterwards, correspondingly driving the first pixel and the second pixel by the first voltage and the second voltage. At last, applying a ultra-violet source onto the LCD panel to enable several photo-sensitive monomers to polymerize several alignment polymers on the first substrate and the second substrate.Type: GrantFiled: December 8, 2005Date of Patent: June 1, 2010Assignee: AU Optronics Corp.Inventor: Hao-Yu Chang
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Patent number: 7567332Abstract: A method of manufacturing a display panel and a display panel are described. A first substrate is provided. A wall structure is formed on the first substrate to define several microcups. A displaying medium is filled into the microcups. Thereafter, a sealing material is formed over the microcups filled with the displaying medium. A second substrate is put over the sealing material and a lamination process is performed, wherein the sealing material which contacts the wall structure bonds the second substrate to the wall structure, and the sealing material which contacts the displaying medium dissolves in the displaying medium.Type: GrantFiled: October 26, 2006Date of Patent: July 28, 2009Assignee: Industrial Technology Research InstituteInventors: Jau-Min Ding, Yan-Rung Lin, Ru-De Chen, Chung-Hao Chen, I-Chun Chen, Chun-Yuan Lin, Wei-Hsin Hou
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Publication number: 20090167992Abstract: The invention relates to a liquid crystal display used as a display section of an electronic apparatus and provides a liquid crystal display having high chromaticity characteristics and viewing angle characteristics. A configuration is employed which includes substrates having electrodes on respective surfaces thereof opposite to each other, a liquid crystal sealed between the substrates, and a pixel region including a low effective voltage area in which an effective voltage applied to the liquid crystal is lower than a voltage applied between the electrodes, the low effective voltage area occupying part of the region in a predetermined area ratio, the pixel region having a threshold voltage that varies between the low effective voltage area and another area.Type: ApplicationFiled: March 2, 2009Publication date: July 2, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Kazuya Ueda, Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Kenji Okamoto, Yuichi Inoue, Seiji Tanuma
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Patent number: 7532288Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.Type: GrantFiled: May 21, 2007Date of Patent: May 12, 2009Assignee: Casio Computer Co., Ltd.Inventors: Kazuhiko Ohsawa, Tetsushi Yoshida
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Patent number: 7528895Abstract: A method for manufacturing a substrate of a TFT LCD device is disclosed with following steps: providing a transparent substrate having a thin film transistors area and a storing capacitor area; forming an aluminum metal layer and a metal protecting layer on the substrate; patterning a first pattern on the aluminum metal layer of the TFT area, and a second pattern on the metal protecting layer of the storing capacitor area through a halftone mask; forming an aluminum nitride layer on the patterned metal protecting layer; removing the aluminum nitride layer form a rugged surface; forming patterned gates, patterned sources, and patterned drains over the patterned metal protecting layer of the TFT area, and forming a second metal layer over the rugged surface of the aluminum layer on the storing capacitor area, wherein the second metal layer is electrically connected with the drains; and forming patterned pixel electrodes.Type: GrantFiled: January 31, 2006Date of Patent: May 5, 2009Assignee: Quanta Display Inc.Inventors: Chien-Hung Chen, Li-Kai Chen
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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
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Patent number: 7528925Abstract: A roll printing device, a roll printing method, and a method of fabricating an LCD device using the same are disclosed. The roll printing device includes a dispenser, an anilox roll receiving a predetermined material dispensed from the dispenser, a doctor roll rotating in engagement with the anilox roll to uniformly coat the predetermined material on the anilox roll, a doctor blade in contact with the anilox roll to uniformly coat the predetermined material on the anilox roll, and a printing roll supplied with the predetermined material from the anilox roll. The predetermined material is uniformly coated on the anilox roll by both the doctor roll and the doctor blade.Type: GrantFiled: June 30, 2006Date of Patent: May 5, 2009Assignee: LG Display Co., Ltd.Inventors: Hyun Seok Jang, Cheol Joo Moon
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Patent number: 7483104Abstract: An OCB mode liquid crystal display panel comprises a pair of electrode substrates, a liquid crystal layer which is held between the pair of electrode substrates and has liquid crystal molecules whose alignment state is controlled within a display area by a drive voltage applied from the electrode substrates, and a pair of alignment films which are disposed on the electrode substrates in contact with the liquid crystal layer and whose rubbing directions are set parallel to each other. The display area includes a plurality of pixels arrayed in a matrix, and the rubbing directions of the alignment films are substantially opposite to a scanning direction in which rows of the pixels are sequentially selected for application of the drive voltage in a display operation.Type: GrantFiled: May 27, 2005Date of Patent: January 27, 2009Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Kenji Nakao, Shinji Ogawa, Naoya Kubota, Hirofumi Wakemoto
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Patent number: 7480023Abstract: An OCB mode liquid crystal display panel comprises a pair of electrode substrates, a liquid crystal layer which is held between the pair of electrode substrates and has liquid crystal molecules whose alignment state is controlled within a display area by a drive voltage applied from the electrode substrates, and a pair of alignment films which are disposed on the electrode substrates in contact with the liquid crystal layer and whose rubbing directions are set parallel to each other. The rubbing directions of the pair of alignment films are oriented toward a side of a main diffusion source of impurity ions.Type: GrantFiled: May 27, 2005Date of Patent: January 20, 2009Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Kenji Nakao, Shinji Ogawa, Hirofumi Wakemoto
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Patent number: 7468771Abstract: An OCB mode liquid crystal display panel comprises a pair of electrode substrates, a liquid crystal layer which is held between the pair of electrode substrates and has liquid crystal molecules whose alignment state is controlled within a display area by a drive voltage applied from the electrode substrates, and a pair of alignment films which are disposed on the electrode substrates in contact with the liquid crystal layer and whose rubbing directions are set parallel to each other. The concentration of the impurity ions contained in that part of the liquid crystal layer which is located inside the display area is lower than the concentration of the impurity ions contained in that part of the liquid crystal layer which is located outside the display area.Type: GrantFiled: May 27, 2005Date of Patent: December 23, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Kenji Nakao, Shinji Ogawa, Naoya Kubota
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Patent number: 7408601Abstract: Inhomogeneous concentrated polymer network with approximately 90° twisted nematic liquid crystal (TN-LC) is used for fabricating lens and prisms. For forming a positive lens, the approximately 90° TN-LC polymer network concentration can gradually decrease from the center to the side edges. For forming a negative lens, the approximately 90° TN-LC polymer network concentration can gradually increase from the center to the side edges. The lens can be created by ultra violet (UV) light exposure to patterned photo masks. The lens can be tuned by applying voltage above the threshold voltage to the polymer network. The inhomogeneous 90° TN-LC polymer network can also be used in Fresnel lens and prisms. Applications of the invention can be used for micro lens, array, optical communication, micro-optics, adaptive optics and beam steering.Type: GrantFiled: December 9, 2005Date of Patent: August 5, 2008Assignee: Research Foundation of the University of Central Florida, Inc.Inventors: Yuhua Huang, Hongwen Ren, Xinyu Zhu, Shin-Tson Wu
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Patent number: 7326449Abstract: A liquid crystal device comprises first and second opposed spaced-apart cell walls enclosing a layer of a liquid crystal material. Electrodes are provided on at least one cell wall for applying an electric field across at least some of the liquid crystal material. The first cell wall is provided with a first surface layer substantially comprising a polymerised aligned mesogenic material, which surface layer is in contact with the liquid crystal material. Preferably the alignment of the polymerised mesogenic material is substantially uniform across substantially the entire area of the display. The inner surface of the second cell wall may be provided with a similar second surface layer, preferably wherein the anchoring energy and/or order parameter of the liquid crystal adjacent the two surface layers is different.Type: GrantFiled: April 22, 2003Date of Patent: February 5, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Adrian Derek Geisow, Stephen Christopher Kitson
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Patent number: 7256848Abstract: In a method and apparatus of aligning liquid crystal, a first ion beam is formed. The first ion beam is transformed into a second ion beam having transformed cross-section. The second ion beam advances toward a thin film including carbon-carbon double bond. The second ion beam forms a first angle with respect to the thin film. The second ion beam is transformed into an atomic beam. The atomic beam is irradiated onto the thin film to break the carbon-carbon double bond. The carbon-carbon double bond is broken to form a polarized functional group for aligning a liquid crystal molecule.Type: GrantFiled: October 14, 2003Date of Patent: August 14, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Ho Choo, Hwan-Kyeong Jeong, Bong-Woo Lee
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Patent number: 7230665Abstract: A slit pattern, which is an orientation control element extending in an oblique direction relative to an edge of a pixel electrode on a surface of a TFT substrate, is formed in the pixel electrode to extend in a substantially parallel direction to an extending direction of a bank-shaped pattern. Furthermore, as an orientation control element, fine slit patterns (concave portions in the pixel electrode) are formed locally in a part near the edge of the pixel electrode except in the pixel electrode to extend in an oblique direction relative to an extending direction of the edge.Type: GrantFiled: September 18, 2003Date of Patent: June 12, 2007Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Shingo Kataoka, Tsuyoshi Kamada, Kazuya Ueda, Takahiro Sasaki