Interconnection Of Plural Cells In Series Patents (Class 349/74)
- Cell cooperation providing multicolor display (Class 349/78)
- With cells being substantially identical and driven simultaneously, providing improved contrast (Class 349/81)
- With projection of electrodes in one cell substantially nonoverlapping that of another cell (i.e., for improving resolution) (Class 349/82)
- With each cell displaying a different pattern (Class 349/83)
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Publication number: 20120105743Abstract: A liquid crystal light adjusting device includes: a first liquid crystal layer on which light from one surface is incident; and a reflective film which reflects light transmitted through the first liquid crystal layer, wherein the first liquid crystal layer has adjacent alignment regions, and orientation directions of liquid crystal molecules in the adjacent alignment regions are different.Type: ApplicationFiled: September 21, 2011Publication date: May 3, 2012Applicant: Sony CorporationInventor: Keita Kaifu
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Patent number: 8169568Abstract: A liquid crystal display device has a first substrate, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first and the second substrates. The first substrate includes a plurality of pixels, each of which includes a thin film transistor and a pixel electrode. The second substrate includes a color filter facing a pixel electrode of one of the pixels, and a black matrix formed on a region except the color filter. The black matrix has an opening that exposes a portion of one of the gate electrodes. External light entering the opening is reflected from the gate electrode.Type: GrantFiled: February 27, 2009Date of Patent: May 1, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventor: Min-Woo Kim
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Patent number: 8169567Abstract: A viewing angle controlling liquid crystal panel in which uniformity of a shielding effect in a screen is further improved is provided. Linearly polarized light enters a liquid crystal layer. Further, the liquid crystal layer is provided, on a light exit side of the liquid crystal layer, with a polarizing plate transmitting only a component of light having exited from the liquid crystal layer which component is parallel to a polarization axis of the linearly polarized light having entered the liquid crystal layer. Liquid crystal molecules contained in the liquid crystal layer are tilted in a direction parallel to or perpendicular to the polarization axis of the linearly polarized light having entered the liquid crystal layer. In addition, an electrode (26) is provided so that two or more different voltages can be applied to the liquid crystal layer simultaneously.Type: GrantFiled: August 27, 2007Date of Patent: May 1, 2012Assignee: Sharp Kabushiki KaishaInventors: Takehiko Sakai, Dai Chiba, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura
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Patent number: 8149353Abstract: A method of adapting a visual unit having a first screen (10) in a first focal plant by the addition of one or more at least partially transparent display screens (20) at least partially overlapping said first screen (10) and located in focal planes distinct from said first focal plane, characterized in that an at least partially transparent emissive layer (21) is provided between said first screen (10) and at least one said additional display screen (20).Type: GrantFiled: October 11, 2002Date of Patent: April 3, 2012Assignee: Puredepth LimitedInventors: Gareth Paul Bell, Gabriel Damon Engel
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Patent number: 8144272Abstract: A display device includes: a display panel having a display region for displaying an image; a functional panel positioned so as to face the display panel; and an interposed member provided outside the display region so as to be interposed between the display panel and the functional panel, wherein an optical sheet having predetermined optical characteristics is provided on at least one surface between the display panel and the functional panel so as to overlap the display region, and the interposed member is provided along a sidewall of the optical sheet.Type: GrantFiled: February 7, 2008Date of Patent: March 27, 2012Assignee: Sharp Kabushiki KaishaInventor: Hiroaki Isobe
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Patent number: 8144274Abstract: A parallax-barrier comprises a Liquid-Crystal layer (LC layer) including pixels that form a barrier according to a control method. A controller controls the pixels of the LC layer to form a barrier pattern, by turning pixels on or off according to the control method. A lower layer is formed between the LC layer and a display module to dispose the LC layer and controller at a position off the display module by a predetermined distance. An upper layer is formed on the LC layer to dispose the LC layer and controller, and a polarizer on the upper layer, and visualizing the barrier according to the barrier pattern on the LC layer by controlling polarization angle of the light. The light passes through the lower layer, LC layer and upper layer. Stereoscopic images that are rotated in the horizontal/vertical direction can be displayed using the parallax-barrier and stereoscopic image.Type: GrantFiled: July 25, 2011Date of Patent: March 27, 2012Assignee: Masterimage 3D Asia, LLCInventor: Young Hoon Lee
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Patent number: 8144276Abstract: An LC-based optical device compensates for differences in optical path lengths of polarization components of input beam. As a result, PDL and PMD of the optical device are reduced. The compensation mechanism may be a glass plate that is disposed in an optical path of a polarization component so that the optical path length of that polarization component can be made substantially equal to the optical path length of the other polarization component that traverses through a half-wave plate. Another compensation mechanism is a birefringent displacer that has two sections sandwiching a half-wave plate, wherein the two sections are of different widths and the planar front surface of the birefringent displacer can be positioned to be non-orthogonal with respect to the incident input light beam.Type: GrantFiled: May 29, 2009Date of Patent: March 27, 2012Assignee: Oclaro (North America), Inc.Inventors: Xuefeng Yue, Ruibo Wang
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Patent number: 8111357Abstract: An optical element is arranged in such a manner that a screen thereof can be hardly observed from a predetermined direction, and a deterioration of an image quality caused by moire does not occur. The optical element is constituted by a first polarizing layer, a second polarizing layer, and a liquid crystal layer arranged between these two polarizing layers. In the optical element, absorption axes of the first polarizing layer and the second polarizing layer are located parallel to each other; the liquid crystal layer is made of hybrid-aligned discotic liquid crystal; and an alignment axis of the liquid crystal layer is located parallel to, or perpendicular to both absorption axes of the first polarizing layer and of the second polarizing layer.Type: GrantFiled: November 14, 2005Date of Patent: February 7, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masaya Adachi, Osamu Itou, Shinichi Komura
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Publication number: 20120019733Abstract: A 2D/3D switchable display, including a display unit adapted to display an image, and a lens unit on the display unit, wherein the lens unit includes a first lens substrate on the display unit and including a first electrode array including a plurality of first electrodes that are spaced apart from each other, a second lens substrate on the first lens substrate and including a second electrode array including a plurality of second electrodes that are spaced apart from each other, and a liquid crystal layer between the first lens substrate and the second lens substrate.Type: ApplicationFiled: February 9, 2011Publication date: January 26, 2012Inventors: Beom-Shik Kim, Hui Nam, Chan-Young Park
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Patent number: 8102487Abstract: A LCD device includes first and second LCD panels stacked one on another. Each of the first and second LCD panels includes a pair of transparent substrates, a liquid crystal layer sandwiched therebetween, and a pair of polarizing films sandwiching therebetween the pair of transparent substrates. A light diffusion layer having light diffusion function is interposed between the first LCD panel and the second LCD panel. The light diffusion layer reduces the intensity of the light passed by the first LCD panel, thereby alleviating the periodicity of the arrangement of dark areas and bright areas to alleviate the moire caused by light interference.Type: GrantFiled: December 6, 2010Date of Patent: January 24, 2012Assignee: NLT Technologies, Ltd.Inventors: Yoshiro Kitagawa, Hidenori Ikeno, Shinichi Uehara, Takashi Yatsushiro
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Patent number: 8098350Abstract: There are provided a display that can block light so that a display on an image display device is invisible from a wide range of view angles in an oblique direction, and a view angle control element employed therein. In a narrow view angle state, a view angle control liquid crystal panel (2) prevents light in a predetermined wavelength region that has been incident at a polar angle of ?H or more from being transmitted through a polarizing plate (22) by using a phase difference imparted by a liquid crystal cell (21). In the narrow view angle state, a view angle control liquid crystal panel (3) prevents light that has been incident at a polar angle of ?L or more, among light that has been transmitted through the polarizing plate (22), from being transmitted through a polarizing plate (32) by using a phase difference imparted by a liquid crystal cell (31). Consequently, light forming a polar angle of ?L or more is blocked as a whole, which allows the narrow view angle state to cover a wide range.Type: GrantFiled: June 19, 2008Date of Patent: January 17, 2012Assignee: Sharp Kabushiki KaishaInventors: Takehiko Sakai, Dai Chiba, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura
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Publication number: 20120002140Abstract: In a liquid crystal display (1), a transparent electrode (100) constituting a display liquid crystal cell (30) has a plurality of patterns (102, and the like) for forming a desired pattern in the outer circumferential part (101) forming the whole display region, and transparent electrodes (13a, 13b) are sandwiching at least a part of liquid crystal molecules of a liquid crystal layer (20). When voltage application control of the plurality of patterns (102, and the like) is performed, respectively, for the whole display region displayed by bright display or dark display, a desired pattern can be displayed by reversed bright/dark display of the bright/dark display of the whole display region.Type: ApplicationFiled: December 4, 2008Publication date: January 5, 2012Inventors: Fumiaki Hatoyama, Yoshinori Higuchi
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Patent number: 8077195Abstract: A method for the autostereoscopic representation of images on a screen, wherein image information of separate channels for a right eye and a left eye of a user is displayed in interleaved segments on the screen, and a lens array is disposed for deflecting light emitted from the screen such that the image information of each channel is visible only for one eye of the user, including the steps of defining a channel mask, as determined by the lens array, projecting the channel mask onto the screen, thereby to assign to each pixel of the screen a correlation with at least one of the channels, storing, for each channel, and determining the contents of each pixel on the basis of its correlations with the channels.Type: GrantFiled: July 24, 2006Date of Patent: December 13, 2011Assignee: SeeFront GmbHInventor: Christoph Groβmann
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Patent number: 8072561Abstract: Contrast compensation for a liquid crystal display projection system including a light source, a first polarizer, a liquid crystal display panel, and a second polarizer is provided using a tilted compensating plate. The compensating plate includes a first birefringent element having an optic axis oriented at a first angle to the plate normal, where the first angle is greater than zero degrees (e.g., an A-plate or O-plate), and a second birefringent element having an optic axis oriented at a second angle to the plate normal, where the second angle is substantially equal to zero degrees (e.g., a C-plate). The compensating plate is tilted relative to a plane of the liquid crystal display panel. The tilted compensating plate has been shown to provide improved contrast compensation for twisted nematic liquid crystal displays.Type: GrantFiled: April 9, 2008Date of Patent: December 6, 2011Assignee: JDS Uniphase CorporationInventors: Kim Leong Tan, Karen Denise Hendrix
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Patent number: 8064000Abstract: The present invention discloses a parallax-barrier comprising a Liquid-Crystal layer (LC layer) including pixels arranged in cell type matrix structure to form a barrier of horizontal or vertical direction according to a predetermined control method, a controller for controlling said pixels of said LC layer in order to form a barrier pattern of horizontal or vertical direction pattern, by turning said pixels on or off selectively according to said control method, a lower layer formed between said LC layer and a predetermined display module in order to dispose said LC layer and said controller at a position off from said display module by a predetermined distance, an upper layer formed on the top of said LC layer in order to dispose said LC layer and said controller, and a polarizer formed on the top of said upper layer, and visualizing said barrier according to said barrier pattern which is formed on said LC layer by controlling polarization angle of the light, wherein said light being emitted from said displType: GrantFiled: August 25, 2006Date of Patent: November 22, 2011Assignee: Masterimage 3D Asia, LLCInventor: Young Hoon Lee
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Patent number: 8059251Abstract: A method of filling a multilayered cell with media. In the method, a multilayered cell having at least two layers, i.e., a first and second layer, is filled with media. The method comprises forming in the first layer a first medium injection region for filling the first layer with a first medium, forming in the second layer a second medium injection region for filling the second layer with a second medium, the second medium injection region corresponding to a region different from the first medium injection region, superposing the first and second layers, forming within the first medium injection region a first through-hole extending through the multilayered cell in the layer-thickness direction, forming within the second medium injection region a second through-hole extending through the multilayered cell in the layer-thickness direction, and injecting the first and second media into the first and second through-holes, respectively, to fill the first and second layers with the first and second media.Type: GrantFiled: August 1, 2008Date of Patent: November 15, 2011Assignee: Fujitsu LimitedInventors: Yoshihisa Kurosaki, Junji Tomita, Toshiaki Yoshihara
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Patent number: 8054433Abstract: There are provided a viewing angle control device that can provide a black display without coloring and achieve a significantly improved shielding ability during a narrow viewing angle state, and a display using the same. In order to adjust VT (voltage-transmittance) characteristics of a viewing angle control liquid crystal panel (2) that switches a viewing angle between a wide viewing angle state and a narrow viewing angle state by using birefringence of liquid crystal, the viewing angle control liquid crystal panel (2) includes a translucent dielectric film (206g, 206r) for adjusting the voltage-transmittance characteristics of the liquid crystal at a position corresponding to a picture element of at least one color in a display liquid crystal panel (1) on at least one of a pair of translucent substrates (201, 202) that sandwich the liquid crystal therebetween.Type: GrantFiled: March 13, 2008Date of Patent: November 8, 2011Assignee: Sharp Kabushiki KaishaInventors: Tsuyoshi Okazaki, Takehiko Sakai, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura, Dai Chiba
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Patent number: 8049840Abstract: The object of the invention is to provide a display apparatus that can partially eliminate the need for a backlight unit and that achieves a corresponding reduction in thickness. The display apparatus includes two display panels arranged one on top of the other and each having two transparent substrates disposed opposite each other with a liquid crystal layer provided therebetween, and the first display panel has a reflective layer, a light-guiding transparent substrate, and a light control layer, and the second transparent substrate, reflective layer, light control layer, and light source together constitute an illuminating means for illuminating the second display panel which is an illuminated member, with provisions made to illuminate the second display panel by the light emerging from the light-guiding transparent substrate.Type: GrantFiled: August 17, 2005Date of Patent: November 1, 2011Assignee: Citizen Holdings Co., Ltd.Inventor: Takashi Akiyama
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Publication number: 20110261293Abstract: It is an object to provide a liquid crystal display device which has excellent viewing angle characteristics and higher quality. The present invention has a pixel including a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.Type: ApplicationFiled: July 1, 2011Publication date: October 27, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Hajime Kimura
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Publication number: 20110261268Abstract: A liquid crystal display of the present invention contains a first panel and a second panel being stacked. Adjacent pairs of polarizers (A to C) disposed on the panels form crossed Nicols. When the first panel produces a display according to a first display signal, the second panel produces a display according to a second display signal obtained from the first display signal. Each of the two joined panels is provided with a light diffusion layer having a light diffusing property. The provision of the light diffusion layers enables reducing moire pattern occurrences which would otherwise markedly increase when two liquid crystal panels are stacked. As a result, the liquid crystal display has high display quality.Type: ApplicationFiled: June 29, 2011Publication date: October 27, 2011Applicant: Sharp Kabushiki KaishaInventors: Nobuhiko Nakai, Mitsuaki Hirata, Mitsuhiro Shigeta, Naoshi Yamada, Toshihide Tsubata, Shigeaki Mizushima, Yoshiki Takata, Masayuki Katakami, Makoto Shiomi
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Patent number: 8045097Abstract: In a liquid crystal display device including a display liquid crystal panel and a viewing-angle-control liquid crystal panel and capable of switching viewing angle characteristics, a half wavelength plate for setting a viewing restricted direction is provided between the display liquid crystal panel and the viewing-angle-control liquid crystal panel. This makes it possible to realize a liquid crystal display device that allows a viewing restricted direction to be set as appropriate.Type: GrantFiled: April 16, 2007Date of Patent: October 25, 2011Assignee: Sharp Kabushiki KaishaInventors: Takehiko Sakai, Tsuyoshi Okazaki, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura, Dai Chiba
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Patent number: 8045070Abstract: An electronic display device using a barrier includes a display unit displaying an image corresponding to a two dimension (2D) or a three dimension (3D), and a barrier facing the display unit and providing a 2D image or 3D image to a user. The barrier includes first and second substrates facing each other. First and second electrodes are alternately formed on the first substrate and having first gaps therebetween. A third electrode is formed on the second substrate. A dark colored layer is formed to correspond to the first gap. A liquid crystal layer is disposed between the first and second substrates.Type: GrantFiled: May 21, 2008Date of Patent: October 25, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Chan-Young Park, Beom-Shik Kim, Hui Nam, Ja-Seung Ku
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Patent number: 8045249Abstract: An optical scanning device including a light source, a deflection device to deflect a light beam from the light source, an image focus optical system to focus the light beam deflected by the deflection device on a scanned surface to form an image thereon and scan a surface by the light beam deflected by deflection device to form an image thereon, a light path switching device provided between the light source and the deflection device, which switches a light path of the light beam emitted from the light source to deflect the light beam on different timings such that the light beam scans different surfaces.Type: GrantFiled: June 4, 2008Date of Patent: October 25, 2011Assignee: Ricoh Company, Ltd.Inventors: Masanori Kobayashi, Hiroyoshi Funato, Kazuya Miyagaki
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Publication number: 20110234934Abstract: A double-layer liquid crystal lens apparatus having two liquid lens structures is provided. A driving voltage of each liquid crystal lens structure is controlled by an active device disposed thereon. When an incident light is passing through the liquid crystal lens structures, the optical path difference of the incident light is compensated by the liquid crystal lens structures, so that the double-layer liquid crystal lens apparatus performs the focusing function well without using a polarizer. Applying a suitable driving voltage on each of the active devices, the double-layer liquid crystal lens apparatus has a function of modulating focal length focusing/diverging the light, like a convex lens or a concave lens.Type: ApplicationFiled: October 7, 2010Publication date: September 29, 2011Applicant: SILICON TOUCH TECHNOLOGY INC.Inventor: Chi-Lone Chang
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Patent number: 8023093Abstract: The present invention is to provide a display panel, a multi-layer display element, and a method of fabricating same, which can readily align alignment positions of individual display panels with each other even though common alignment marks are provided on each of display panels. A display panel includes a pair of substrates faced to each other as a display material layer is sandwiched between the substrates, a plurality of pixels provided in a plane almost in parallel with a substrate surface between the substrates, and a plurality of alignment marks formed in different shapes and linearly arranged on at least one of the pair of the substrates at a predetermined interval for alignment in placing the display panels in layers.Type: GrantFiled: September 14, 2009Date of Patent: September 20, 2011Assignee: Fujitsu LimitedInventor: Makoto Fukuda
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Patent number: 8023052Abstract: A polarization modulator for time-multiplexed stereoscopic 3D applications rapidly switches between two polarization states in alternate subframes. The polarization modulator uses two liquid crystal devices arranged in optical series and driven such that the second device compensates a change the first device makes to an input polarization state of incident light during alternate subframes. The compensating liquid crystal devices are characterized in that, if the same voltage is applied to both of them, the second device compensates the change that the first device makes to the input polarization state, regardless of the applied voltage level. If the applied voltage is changed from one level to another and the liquid crystal material in the liquid crystal devices relaxes to the new voltage level, polarization state compensation will take place throughout the duration of the relaxation so that the slow, unpowered transition does not manifest itself as a change in polarization state.Type: GrantFiled: August 17, 2010Date of Patent: September 20, 2011Assignee: LC-TEC Displays ABInventors: Jesper Osterman, Terry J. Scheffer
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Patent number: 8018552Abstract: The present invention provides a transmissive liquid crystal display device which is less in display characteristics fluctuations, bright in display images, high in contrast and less in viewing angle dependency and comprises a backlight, a polarizer, a second optically anisotropic layer, a first optically anisotropic layer, a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates, and a polarizer, arranged in piles in this order from the backlight, wherein a liquid crystal film forming the first optically anisotropic layer, a liquid crystal film forming the second optically anisotropic layer and the liquid crystal cell have a predetermined relationship in the wavelength dispersion of birefringence, the first optically anisotropic layer, the second optically anisotropic layer and the liquid crystal cell upon application of an electric voltage for black image display, have a predetermined relaType: GrantFiled: January 29, 2008Date of Patent: September 13, 2011Assignee: Nippon Oil CorporationInventors: Satoru Ikeda, Tetsuya Uesaka
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Patent number: 8009248Abstract: A liquid crystal display of the present invention contains a first panel and a second panel being stacked. Adjacent pairs of polarizers (A to C) disposed on the panels form crossed Nicols. When the first panel produces a display according to a first display signal, the second panel produces a display according to a second display signal obtained from the first display signal. Each of the two joined panels is provided with a light diffusion layer having a light diffusing property. The provision of the light diffusion layers enables reducing moire pattern occurrences which would otherwise markedly increase when two liquid crystal panels are stacked. As a result, the liquid crystal display has high display quality.Type: GrantFiled: September 27, 2006Date of Patent: August 30, 2011Assignee: Sharp Kabushiki KaishaInventors: Nobuhiko Nakai, Mitsuaki Hirata, Mitsuhiro Shigeta, Naoshi Yamada, Toshihide Tsubata, Shigeaki Mizushima, Yoshiki Takata
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Publication number: 20110194050Abstract: A liquid crystal display device and a method for driving the same are provided. The liquid crystal display device includes a first liquid crystal layer selectively driven by a first electric field in a first direction; and a second liquid crystal layer selectively driven a second electric field in a second direction, the second direction being different from the first direction.Type: ApplicationFiled: April 15, 2011Publication date: August 11, 2011Inventors: Hyun Suk Jin, Hyung Seok Jang
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Publication number: 20110170038Abstract: A transflective liquid crystal display device includes a liquid crystal film and a polarizing plate on a backlight source side. A transflective liquid crystal display device includes an uniaxially anisotropic film (a quarter wave plate) and a polarizing plate on a visual confirmation side. The liquid crystal film has the nematic hybrid orientation, in which a polymeric liquid crystal substance formed in a liquid state is fixed. The optical axis of the anisotropic film is disposed to be orthogonal or substantially orthogonal to that of the liquid crystal film.Type: ApplicationFiled: March 23, 2011Publication date: July 14, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventor: Kenichirou Naka
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Publication number: 20110141404Abstract: The present disclosure relates to an outdoor large area flat panel display device and a manufacturing method of the same. The present disclosure suggests an outdoor large area flat panel display device comprising: a reinforced base substrate; an anti-reflection film disposed on the outer surface of the base substrate; black matrixes dividing the inner surface of the base substrate into 4 sections; an index matching oil disposed on the inner surface of the base substrate; and a first, a second, a third and a fourth flat panel modules tiled on the base substrate bordering the black matrixes. The present disclosure suggests a large area flat panel display device having strength enough to endure from external impacts and optical properties as the large display panel is made in one piece of panel.Type: ApplicationFiled: May 5, 2010Publication date: June 16, 2011Inventors: Sejune Kim, Woonam Jeong
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Publication number: 20110141405Abstract: A LCD device includes first and second LCD panels stacked one on another. Each of the first and second LCD panels includes a pair of transparent substrates, a liquid crystal layer sandwiched therebetween, and a pair of polarizing films sandwiching therebetween the pair of transparent substrates. A light diffusion layer having light diffusion function is interposed between the first LCD panel and the second LCD panel. The light diffusion layer reduces the intensity of the light passed by the first LCD panel, thereby alleviating the periodicity of the arrangement of dark areas and bright areas to alleviate the moire caused by light interference.Type: ApplicationFiled: February 23, 2011Publication date: June 16, 2011Inventors: Yoshiro Kitagawa, Hidenori Ikeno, Shinichi Uehara, Takashi Yatsushiro
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Patent number: 7948582Abstract: A liquid crystal display device and a method for driving the same are provided. The liquid crystal display device includes a first liquid crystal layer selectively driven by a first electric field in a first direction; and a second liquid crystal layer selectively driven a second electric field in a second direction, the second direction being different from the first direction.Type: GrantFiled: June 16, 2006Date of Patent: May 24, 2011Assignee: LG Display Co., Ltd.Inventors: Hyun Suk Jin, Hyung Seok Jang
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Patent number: 7948580Abstract: A liquid crystal display includes a backlight (3), a liquid crystal display panel (1), and a viewing angle control panel (2) for controlling the viewing angle of the display panel (1), the liquid crystal display further including a lens sheet (41) provided between the backlight (3) and the liquid crystal display panel (1). This provides a display device system which is capable of providing better blocking.Type: GrantFiled: December 21, 2006Date of Patent: May 24, 2011Assignee: Sharp Kabushiki KaishaInventors: Takehiko Sakai, Tsuyoshi Okazaki, Katsuhiko Morishita, Yoshiharu Kataoka, Chikanori Tsukamura, Dai Chiba
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Patent number: 7920229Abstract: A display device is provided which offers double-sided display and achieves a thin structure and also which prevents deterioration in display quality of each of front and back display units when an illumination unit such as a backlight is shared by these display units. The display device includes a first display unit having a display surface on the front surface thereof; a second display unit having a display surface on the rear surface thereof; and a common illumination unit interposed between the first display unit and the second display unit, for illuminating both the first display unit and the second display unit with light. A transflector is interposed between the second light-emitting surface of the light-guiding member and the second display unit.Type: GrantFiled: April 21, 2009Date of Patent: April 5, 2011Assignee: Seiko Epson CorporationInventors: Yasunori Onishi, Hisanori Kawakami, Taketoshi Masamoto
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Patent number: 7916223Abstract: A LCD device includes first and second LCD panels stacked one on another. Each of the first and second LCD panels includes a pair of transparent substrates, a liquid crystal layer sandwiched therebetween, and a pair of polarizing films sandwiching therebetween the pair of transparent substrates. A light diffusion layer having light diffusion function is interposed between the first LCD panel and the second LCD panel. The light diffusion layer reduces the intensity of the light passed by the first LCD panel, thereby alleviating the periodicity of the arrangement of dark areas and bright areas to alleviate the moire caused by light interference.Type: GrantFiled: April 17, 2007Date of Patent: March 29, 2011Assignee: NEC LCD Technologies, Ltd.Inventors: Yoshiro Kitagawa, Hidenori Ikeno, Shinichi Uehara, Takashi Yatsushiro
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Patent number: 7911563Abstract: A method for making a polarizer-and-compensator assembly includes: (a) forming an alignment film on a releasable substrate; (b) forming a liquid crystal film on the alignment film so as to form a compensator layer on the releasable substrate; and (c) transferring the compensator layer from the releasable substrate to a polarizer plate by removing the releasable substrate from the compensator layer and attaching the alignment film to the polarizer plate.Type: GrantFiled: September 17, 2007Date of Patent: March 22, 2011Assignee: Far Eastern New Century CorporationInventor: Wei-Che Hung
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Patent number: 7911560Abstract: The present invention provides a laminated liquid crystal display device having a configuration in which substrates for both panels can be electrically connected easily. The display device, which is implemented by multiple-layered liquid crystal cell panels configured by laminating a liquid crystal cell panel having a rigid panel substrate and a liquid crystal cell panel having a flexible panel substrate, makes use of the flexibility of the flexible panel substrate for making electrical connection between the flexible panel substrate and the rigid panel substrate. A part of the flexible panel substrate is protruded and, on this protrusion, electrode wire lines are provided for making electrical connection between the panel substrates. Bending the flexible panel substrate allows the electrode wire lines, formed on the protrusion, to be brought into contact with the rigid panel substrate.Type: GrantFiled: October 31, 2007Date of Patent: March 22, 2011Assignee: Citizen Holding Co., Ltd.Inventor: Kiyoshi Kamiya
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Patent number: 7911561Abstract: A display apparatus includes a main display panel and a sub-display panel. The main display panel includes a first main display substrate and a second main display substrate disposed opposite the first main display substrate to overlap the first main display substrate. The sub-display panel includes a first sub-display substrate and a second sub-display substrate disposed opposite the first sub-display substrate to overlap the first sub-display substrate. The first main display substrate includes a first alignment mark and a second alignment mark, the second main display substrate includes a third alignment mark corresponding to the second alignment mark, the first sub-display substrate includes a fourth alignment mark, and the second sub-display substrate includes a fifth alignment mark corresponding to the fourth alignment mark and a sixth alignment mark corresponding to the first alignment mark.Type: GrantFiled: February 27, 2008Date of Patent: March 22, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Min-Goo Seok, Woo-Jin Bae, Myeong-Ha Kye
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Patent number: 7903224Abstract: To long sides of a front-side liquid crystal display panel and a rear-side liquid crystal display panel on the same side, elongated portions of flexible printed circuit boards having a substantially U-shape in a plan view are respectively connected by thermo-compression bonding. Due to such a constitution, when the front-side liquid crystal display panel and the rear-side liquid crystal display panel overlapping each other use the flexible printed circuit boards having the same specification, the flexible printed circuit boards can be easily pulled around and connected to a drive printed circuit board and, at the same time, can enhance a material cutting efficiency of flexible printed circuit boards, and can provide a liquid crystal display device at a low cost.Type: GrantFiled: August 31, 2007Date of Patent: March 8, 2011Assignee: Hitachi Displays, Ltd.Inventor: Fumiaki Komori
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Patent number: 7894005Abstract: A parallax barrier liquid crystal panel for a stereoscopic display device, including a first substrate including an active region and a non-active region, a second substrate facing the first substrate, first, second, and third lines in the non-active region, at least one barrier electrode in the active region and connected to the first line, at least one pair of first and second transmission electrodes disposed adjacent to the barrier electrode and connected to the second and third lines, respectively, a common electrode on the second substrate, and a liquid crystal layer between the first and second substrates.Type: GrantFiled: October 16, 2009Date of Patent: February 22, 2011Assignee: LG Display Co., Ltd.Inventor: Ju-Han Kim
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Patent number: 7889291Abstract: A liquid crystal display device is provided which includes: a liquid crystal panel; an image information application unit disposed on a side opposite to a display side of the liquid crystal panel; an illumination unit for irradiating light to the image information application unit; a liquid crystal shutter device disposed between the image information application unit and the liquid crystal panel; a polymer dispersion type liquid crystal layer disposed in the liquid crystal shutter device and containing liquid crystal molecules and polymers, in which the polymers are aligned in a twisted manner at a twist angle larger than 0 degree and smaller than 180 degrees; and a polarization layer disposed between the liquid crystal panel and the liquid crystal shutter device so that in a rotation direction where the polymers are aligned in a twisted manner, an absorption axis thereof is set in a direction substantially perpendicular to a radial direction where the polymers are twisted by half the twist angle.Type: GrantFiled: February 27, 2009Date of Patent: February 15, 2011Assignee: Seiko Epson CorporationInventors: Yutaka Tsuchiya, Toshiharu Matsushima
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Publication number: 20110025952Abstract: A retardation plate includes a light transmissive planar body and a solidified liquid crystal layer which is a continuous film made from the same material supported by the planar body. The solidified liquid crystal layer comprises a plurality of regions in which a thickness direction refractive indices are lowest. The plurality of regions are arranged on the planar body, each region has a different in-plane retardation and different thickness direction retardation caused by the degree of orientational disorder of mesogens and anisotropy of orientational disorder of mesogens.Type: ApplicationFiled: September 29, 2010Publication date: February 3, 2011Applicant: TOPPAN PRINTING CO., LTD.Inventors: Sosuke Akao, Godai Fukunaga, Takao Taguchi
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Publication number: 20110025953Abstract: A retardation layer includes plurality of regions different in retardation. A retardation plate includes a substrate and a solidified liquid crystal layer supported by the substrate. The solidified liquid crystal layer is a continuous film made of a same material, and has biaxial optical anisotropy. The solidified liquid crystal layer includes plurality of regions, the regions being different in an in-plane retardation and a thickness direction retardation.Type: ApplicationFiled: September 29, 2010Publication date: February 3, 2011Applicant: TOPPAN PRINTING CO., LTD.Inventors: Sosuke Akao, Takao Taguchi
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Patent number: 7880830Abstract: An exemplary double-sided liquid crystal display includes a light guide plate, illuminators, a first liquid crystal panel, and a second liquid crystal panel. The light guide plate includes a first light emitting surface and a second light emitting surface. The first and second light emitting surfaces are configured for light emission. The illuminators are configured for providing light beams for the light guide plate. The first liquid crystal panel is configured for receiving the light beams from the first light emitting surface. The second liquid crystal panel is configured for receiving the light beams from the second light emitting surface. When the first liquid crystal panel is configured to display, the first liquid crystal panel is illuminated by only part of the illuminators. When the second liquid crystal panel is configured to display, the second liquid crystal panel is illuminated by all the illuminators.Type: GrantFiled: January 23, 2008Date of Patent: February 1, 2011Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux CorporationInventors: Xiao-Ping Ma, Gao-Jie Wang
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Patent number: 7876400Abstract: Embodiments including a charge responsive optical material are disclosed.Type: GrantFiled: October 31, 2005Date of Patent: January 25, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Roshan B. Baliga, Timothy D. Emmerich, Peter J. Fricke, Richard Aufranc, John A. Devos, P. Guy Howard
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Patent number: 7872726Abstract: An active device array mother substrate including a substrate, a plurality of active device arrays, a plurality of common bus lines, at least one first transparent conductive pattern layer, and at least one second transparent conductive pattern layer is provided. The substrate has a plurality of predetermined areas, and the active device arrays are respectively disposed in the predetermined areas. The common bus lines are respectively disposed in the predetermined areas to surround the active device arrays. The first transparent conductive pattern layer is connected or coupled between adjacent two common bus lines. The second transparent conductive pattern layer is extended to the adjacent predetermined area to be connected or coupled to the adjacent common bus line.Type: GrantFiled: October 1, 2008Date of Patent: January 18, 2011Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chun-Huang Lu, Yi-Ting Chiu, Hsiu-Chih Tseng, Chun-Ying Huang, Hsiao-Sheng Chen
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Patent number: 7868973Abstract: An exemplary LCD device (2) includes a first substrate (21), a second substrate (22), a third substrate (23), a first liquid crystal layer (24), and a second liquid crystal layer (25). The first, second, and third substrates are arranged parallel to one another, and the first substrate is interposed between the second and third substrates. The first liquid crystal layer is interposed between the first substrate and the second substrate. The second liquid crystal layer is interposed between the first substrate and the third substrate. Optical rotations of the liquid crystal molecules of the first liquid crystal layer and the liquid crystal molecules of the second liquid crystal layer are reversed relative to each other, with the liquid crystal molecules of the first and second liquid crystal layers being arranged enantiomorphously at the respective opposite sides of the first substrate.Type: GrantFiled: November 27, 2007Date of Patent: January 11, 2011Assignees: Innocom Technology (ShenZhen) Co., Ltd., Chimei Innolux CorporationInventors: Yuan Li, Kai Meng
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Patent number: 7864277Abstract: A liquid crystal device includes a liquid crystal panel, a pair of polarizers and a phase plate. The phase plate is formed by a supply direction of an inorganic material to the substrate surface set such that a ratio of a front phase difference, which is produced when light is incident along a normal direction of the phase plate, and a first phase difference, which is produced when light is incident along a first direction different from the normal direction, falls within a predetermined range.Type: GrantFiled: February 20, 2009Date of Patent: January 4, 2011Assignee: Seiko Epson CorporationInventors: Takanori Ninomiya, Hiromi Saito
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Patent number: RE42365Abstract: A liquid crystal display apparatus includes a first liquid crystal display panel, a second liquid crystal display panel smaller in area than the first liquid crystal display panel. A flat backlight has an optical waveguide and a point light source placed near one side surface portion of the optical waveguide, and is placed between the first liquid crystal display panel and the second liquid crystal display panel. One reflecting layer is placed at least between the flat backlight and the second liquid crystal display panel.Type: GrantFiled: May 24, 2006Date of Patent: May 17, 2011Assignee: Casio Computer Co., Ltd.Inventor: Masaki Tsuji