Microlenses Patents (Class 349/95)
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Patent number: 8514343Abstract: A beam splitting film includes a light transmissive plate, a plurality of cylindrical lenticular lenses, and a plurality of strip-shaped protrusion groups. The light transmissive plate has a first surface and a second surface. The cylindrical lenticular lenses are disposed on the first surface. The strip-shaped protrusion groups are disposed on the second surface. Each of the strip-shaped protrusion groups includes at least two strip-shaped protrusions. Each of the strip-shaped protrusion groups corresponds to one of the cylindrical lenticular lenses. A distance between an orthographic projection of a geometric center of each of the strip-shaped protrusion groups on the first surface and an orthographic projection of a geometric center of the corresponding cylindrical lenticular lens on the first surface is less than ten times of a distance between the geometric centers of two adjacent cylindrical lenticular lenses. A backlight module and a stereo display apparatus are also provided.Type: GrantFiled: February 23, 2011Date of Patent: August 20, 2013Assignee: Coretronic CorporationInventors: Tzeng-Ke Shiau, Ching-Shiang Li, Wei-Chung Chao, Chao-Hung Weng
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Patent number: 8510951Abstract: The present disclosure generally relates to a method for producing lens patterns on a roll which is used to produce optical films wherein the method comprises forming a resin film on a roll comprising a plated layer which has been surface-plated with copper (Cu) or nickel (Ni); producing a preliminary lens pattern by striking the surface of the resin film on the roll with a chisel; etching with an etching solution the roll having the preliminary lens pattern formed thereon; and removing the resin film, and a roll for producing optical films comprising lens patterns formed thereon by the same method.Type: GrantFiled: August 28, 2009Date of Patent: August 20, 2013Assignee: Toray Advanced Materials Korea Inc.Inventors: Hee-Cheong Lee, Sang-Hoon Lee, Jun-Sang Park, Tae-Yong Ryu
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Patent number: 8508690Abstract: An optical element capable of increasing an angular field while improving luminance by condensing light, and a backlight unit and a liquid crystal display including the same. The optical element includes a light-transmitting base film; a plurality of diffusing cavities or convex diffusing structures formed in one surface of the base film to diffuse light entering the base film; and a light-condensing pattern formed in the surface of the base film where the diffusing cavities or convex diffusing structures are formed so as to condense incident light.Type: GrantFiled: August 7, 2009Date of Patent: August 13, 2013Assignee: LMS Co., LtdInventors: Jeong-Ho Park, Young-Soo Do, Oh-Hyun Kwon
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Publication number: 20130201429Abstract: An electronic device may have a liquid crystal display having a backlight and color mixing prevention structures. The color mixing prevention structures may, in part, be formed from one or more arrays of color filter elements. The liquid crystal display may include first and second transparent substrate layers on opposing sides of a liquid crystal layer. The display may include a first array of color filter elements on the first transparent substrate layer and a second array of color filter elements on the second transparent substrate layer. One or more of the arrays of color filter elements may include a black matrix formed over portions of the color filter elements. The color filter elements may fill or partially fill openings in the black matrix. The display may include a collimating layer on the second transparent substrate layer. The color filter elements may include cholesteric color filter elements.Type: ApplicationFiled: February 2, 2012Publication date: August 8, 2013Inventors: Ming Xu, Shawn R. Gettemy, Young Cheol Yang, Zhibing Ge, Cheng Chen
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Patent number: 8488072Abstract: To provide a structure and a manufacturing method which can manufacture, at a low cost and with good yield, a liquid crystal display panel having a lenticular lens and a substrate formed in a unified manner. When forming a lenticular lens onto a mother CF substrate by using a wet etching method, substrates are dipped into an etching solution while being raised up in such a manner that the length direction of slit openings of a mask is aligned with a vertical direction and an area having no mask pattern comes on a bottom side. With this, the residuals generated due to glass impurities can be drained towards the lower side along the lenticular lens shape to be discharged to the flat area, which makes it possible to suppress deterioration in the etching processed shape.Type: GrantFiled: April 3, 2009Date of Patent: July 16, 2013Assignee: NLT Technologies, Ltd.Inventors: Hiroshi Okumura, Setsuo Kaneko
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Patent number: 8477263Abstract: A liquid crystal display device including a plurality of pixels arranged in a matrix along a first direction and a second direction which are perpendicular to each other a TFT substrate, a counter substrate, a liquid crystal layer, a plurality of microlenses, and a backlight provided on a side of the plurality of microlenses which is opposite to the TFT substrate. The plurality of microlenses includes a plurality of lenticular lenses extending in the first direction, the plurality of lenticular lenses being arranged side by side along the second direction.Type: GrantFiled: March 30, 2009Date of Patent: July 2, 2013Assignee: Sharp Kabushiki KaishaInventors: Takehiro Murao, Naru Usukura, Seishi Kosegawa, Tadashi Nemoto, Toshiyuki Yoshimizu
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Patent number: 8477267Abstract: A conventional liquid crystal display comprises a number of components, so that a manufacturing cost cannot be reduced. Furthermore, a large-area substrate has problems in shipping. According to this invention, a liquid-crystal panel is prepared by forming individual optically functional films, a TFT device and a light-emitting device on a long thin film and then laminating the film by a transfer process. A base film to be a substrate in a liquid-crystal panel preferably has a thickness of 10 ?m to 200 ?m, a curvature radius of 40 mm or less as a measure of flexibility and a coefficient of thermal expansion of 50 ppm/° C. or less. Furthermore, it more preferably gives a variation of ±5% or less in mechanical and optical properties to a thermal history at 200° C.Type: GrantFiled: November 4, 2010Date of Patent: July 2, 2013Assignees: Kuraray Co., Ltd., Konica Minolta Holdings, Inc., JSR Corporation, Sumitomo Chemical Company Limited, Sumitomo Bakelite Co., Ltd., Dainippon Ink and Chemicals, Inc., Dai Nippon Printing Co., Ltd., Toppan Printing Co., Ltd.Inventors: Katsuya Fujisawa, Tokuo Ikari, Kazuo Genda, Atsushi Kumano, Noboru Oshima, Yoshiki Matsuoka, Toshimasa Eguchi, Shigenori Yamaoka, Yoshiyuki Ono, Hisatomo Yonehara, Tatsumi Takahashi, Motoyuki Suzuki, Akimitsu Tsukuda, Norimasa Sekine, Kazushige Takechi, Ken Sumiyoshi, Ichiro Fujieda, Yasuo Tsuruoka
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Patent number: 8471983Abstract: A polarizing element is provided that can serve as a reflective polarizing element, can be produced with relative ease, and is not problematic in terms of strength. Further, the polarizing element can maintain the intensity and the propagation direction of the light that has passed through the polarizing element. Further, a liquid crystal display device is provided that can use light with improved efficiency with the use of the polarizing element. Specifically, the polarizing element includes a plurality of specifically angled, polygonal prisms on a surface of a substantially uniaxial sheet having an in-plane optical axis, and an optically transparent resin layer having a refractive index substantially the same as the fast-axis refractive index of the sheet, and that coats the prisms.Type: GrantFiled: December 19, 2007Date of Patent: June 25, 2013Assignee: Teijin LimitedInventors: Yoshinori Ikeda, Takashi Shiro
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Patent number: 8471968Abstract: A liquid crystal panel includes a first substrate and a second substrate; a first electrode on a surface of the first substrate; a light refraction device on the second substrate, the light refraction device including a plurality of light refracting lenses facing the surface of the first substrate; and a liquid crystal layer interposed between the first electrode and the light refracting lenses.Type: GrantFiled: May 30, 2006Date of Patent: June 25, 2013Assignee: LG Display Co., Ltd.Inventor: Jin Hee Jung
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Patent number: 8467007Abstract: A display device includes a screen having first and second overlapping lenticular screen structures. The first overlapping lenticular screen structure is a series of columns having a negative slope and the second overlapping lenticular screen structure is another series of columns having a positive slope. The display provide three dimensional views in horizontal and vertical dimensions and maintains three-dimensional capabilities even when viewers tilt their heads.Type: GrantFiled: June 27, 2007Date of Patent: June 18, 2013Assignee: Thomson LicensingInventor: Youngshik Yoon
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Patent number: 8462280Abstract: The present invention relates to a liquid crystal lens electrically driven in which micro division electrodes are applied both to upper and lower substrates, and a voltage condition is varied with a number of views of a stereo 3D image display for enabling display of a plurality of views and a stereoscopic display device thereof.Type: GrantFiled: December 1, 2010Date of Patent: June 11, 2013Assignee: LG Display Co., Ltd.Inventor: Sung Woo Kim
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Patent number: 8451403Abstract: A transflective display device includes a display panel and a light-gathering unit. The display panel includes a plurality of transmission regions and reflection regions, and has an upper surface and a lower surface. The light-gathering unit is directly disposed and positioned on the upper surface of the display panel, and includes a plurality of light-gathering elements, which are corresponding to the reflection regions respectively.Type: GrantFiled: December 23, 2009Date of Patent: May 28, 2013Assignee: Hannstar Display Corp.Inventors: Cheng Yeh Tsai, Mu Kai Kang, Heng Cheng Tseng
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Patent number: 8436953Abstract: A stereoscopic display includes: a display panel configured to display an image in either one of two or more arrangement states including a first arrangement state and a second arrangement state which are switchable with each other; and a lens array device arranged to face a display surface of the display panel. The lens array device produces a lens effect in a direction, the direction of effect being changed between in the first arrangement state and in the second arrangement state. The display panel includes an array of a plurality of sub-pixels, and a combination of sub-pixels used as a unit pixel is changed between in the first arrangement state and in the second arrangement state.Type: GrantFiled: March 19, 2010Date of Patent: May 7, 2013Assignee: Sony CorporationInventors: Sho Sakamoto, Kenichi Takahashi, Koji Ishioka, Masayoshi Akita
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Patent number: 8432527Abstract: Light guide devices comprising an intermediate layer of low refractive index between higher refractive index elements are described. The light guide devices are suitable for use in backlights.Type: GrantFiled: September 29, 2009Date of Patent: April 30, 2013Assignee: ITI Scotland LimitedInventor: Andrew Michael Tomlinson
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Patent number: 8427725Abstract: The present invention relates to a light modulating device, comprising a SLM and a pixelated optical element, in which a group of at least two adjacent pixels of the SLM in combination with a corresponding group of pixels in the pixelated optical element form a macropixel, the pixelated optical element being of a type such that its pixels comprise a fixed content, each macropixel being used to represent a numerical value which is manifested physically by the states of the pixels of the SLM and the content of the pixels of the pixelated optical element which form the macropixel.Type: GrantFiled: October 20, 2008Date of Patent: April 23, 2013Assignee: Seereal Technologies S.A.Inventors: Gerald Futterer, Bo Kroll, Steffen Buschbeck
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Patent number: 8411230Abstract: A polarizer is provided comprising a subwavelength optical microstructure wherein the microstructure is partially covered with a light-transmissive inhibiting surface for polarizing light. The inhibiting surface can include a reflective surface, such as a metalized coating. The subwavelength optical microstructure can include moth-eye structures, linear prisms, or modified structures thereof A polarizing structure is further provided comprising a plurality of moth-eye structures stacked on one another for polarizing light.Type: GrantFiled: September 19, 2011Date of Patent: April 2, 2013Assignee: Orafol Americas Inc.Inventors: Robert B. Nilsen, Patrick W. Mullen, Michael J. Hanrahan, Edward D. Phillips
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Patent number: 8405804Abstract: A liquid crystal display device of an embodiment of the present invention includes a liquid crystal layer, a specular reflection layer, the polarization layer disposed on the viewer's side, a retardation layer interposed between the liquid crystal layer and the polarization layer, and a light scattering layer disposed on the viewer's side of the polarization layer. The light scattering layer has a scattering surface. The scattering surface includes a macro uneven structure which has light scatterability and a micro uneven structure which is superimposedly formed over the macro uneven structure and which is smaller than visible light wavelengths.Type: GrantFiled: August 1, 2008Date of Patent: March 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Hisashi Watanabe, Tokio Taguchi
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Patent number: 8400578Abstract: An optical film capable of improving luminance of a display unit, in which a viewing angle in the horizontal direction of emitted light of the display unit is wider than a viewing angle in the vertical direction and the emitted light of the display unit has a polarization component in the vertical direction viewable by polarized sunglasses, an illumination system including the same, and a display unit including the same are provided. The optical film includes a plurality of three-dimensional structures extending in one direction and arranged sequentially in a direction crossing the one direction. The three-dimensional structures contain a liquid crystalline polymer having orientation, and have refractive index anisotropy in which refractive index in the extending direction of the three-dimensional structures is smaller than refractive index in the direction crossing the extending direction of the three-dimensional structures.Type: GrantFiled: August 4, 2009Date of Patent: March 19, 2013Assignee: Sony CorporationInventors: Kei Obata, Mitsunari Hoshi, Jun Shimizu
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Patent number: 8379168Abstract: An object of the present invention is to provide a liquid crystal display device where there are fewer moiré effects between lenticular lenses and the backlight. The present invention provides a liquid crystal display device where the arrangement or form of lenticular lenses 1 varies in waveform so that the center line of the lenses, the width of the lenses, and the height of the lenses vary in the case where light emitted from a backlight 59 is collected into openings 15 for transmitting light by means of lenticular lenses 1.Type: GrantFiled: August 17, 2009Date of Patent: February 19, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tatsuya Sugita, Shinji Sekiguchi, Atsushi Kishioka, Shinichi Komura
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Patent number: 8373815Abstract: An optical sheet and a Liquid Crystal Display (LCD) incorporating the same. The LCD includes a sheet-like transparent substrate made of a transparent material and a microscopic structure layer formed on one surface of the transparent substrate. The microscopic structure layer has an array of microscopic structures to emit light. A liquid crystal panel is formed above the microscopic structure layer, and has defined therein a plurality of pixels to display an image. When seen from above the transparent substrate, at least a portion of the microscopic structures has parallel and non-parallel arrangements repeated one or more times in a longitudinal direction thereof with respect to one side-edge of the pixels of the liquid crystal panel.Type: GrantFiled: February 27, 2009Date of Patent: February 12, 2013Assignee: LMS Co., LtdInventors: Yong-Shig Shim, Young-Il Kim, Jeong-Ho Park
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Patent number: 8361824Abstract: A lens forming method according to the present invention for forming lenses capable of focusing light on a plurality of respective photoelectric conversion sections constituting of a semiconductor apparatus is described. The method includes a lens forming step of processing a lens forming material, in which an average gradient of a ? curve indicating a residual film thickness with respect to the amount of irradiation light is between ?15 and ?0.8 nm·cm2/mJ within the range of a residual film ratio of 10 to 50% or within the range of the amount of irradiation light of 55 to 137 mJ/cm2 into a lens surface shape, using a photomask with an optical transmittance that is varied according to a lens surface shape, as an exposure mask.Type: GrantFiled: May 5, 2010Date of Patent: January 29, 2013Assignee: Sharp Kabushiki KaishaInventor: Junichi Nakai
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Publication number: 20130010234Abstract: An optical sheet having a single sheet structure for an edge-lighting backlight unit using a printless light guide plate, a method of manufacturing the same, and a liquid crystal display apparatus using the same are provided. The optical sheet having a single sheet structure includes a first prism sheet having a prism pattern formed on the upper surface thereof, and a second prism sheet having a prism pattern formed on the upper surface thereof. Further, prism ridges of the first prism sheet are attached to the bottom surface of the second prism sheet by means of an adhesive so that the prism pattern of the first prism sheet and the prism pattern of the second prism sheet are directed in the same direction.Type: ApplicationFiled: June 18, 2012Publication date: January 10, 2013Applicant: GLOTEC CO., LTD.Inventors: Gi Suk SUNG, Chang Kun KIM
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Patent number: 8345182Abstract: A liquid crystal display device including lenticular lenses and color separation filters, associated with a subpixel row direction, on the backlight side with respect to lenticular lenses. In a RGW row, a color separation filter reflecting B wavelengths is arranged, and in a GBW row, a color separation filter reflecting R wavelengths is arranged. Together with collecting light in transmissive aperture parts with lenticular lenses and improving the transmitted quantity of light, the light reflected by color separation filters is returned to the backlight and re-utilized.Type: GrantFiled: January 24, 2008Date of Patent: January 1, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tatsuya Sugita, Masaya Adachi, Shoichi Hirota
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Patent number: 8325297Abstract: In a display panel, a plurality of pixel sections are arranged in the form of a matrix. Each of the pixel sections includes a pixel for displaying an image for the left eye and a pixel for displaying an image for the right eye. Lenticular lens having repeated convex surfaces is disposed in front of the display panel to deflect the light emitted from each pixel in the horizontal direction from the pixel for displaying the image for the left eye to the pixel for displaying the image for the right eye in each pixel section. Reflection plate reflects the exterior light toward the display panel and has surface projections on the surface. In this case, the focal distance f of the lens is different from the distance H between the surface of the reflection plate and the apex of the lens.Type: GrantFiled: July 16, 2008Date of Patent: December 4, 2012Assignee: NLT TechnologiesInventors: Shin-ichi Uehara, Nobuaki Takanashi
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Publication number: 20120293735Abstract: A display device includes a first substrate, a middle layer, a first liquid crystal layer, a second substrate, a pixel part and a second liquid crystal layer. A first common electrode is on the first substrate. The middle layer includes a lenticular array, and a control electrode on the lenticular array. The control electrode faces the first common electrode. The first liquid crystal layer is between the middle layer and the first substrate, and a second common electrode is on a back side of the middle layer. The pixel part includes a plurality of pixel electrodes on the second substrate and facing the second common electrode. The second liquid crystal layer is between the second common electrode and the pixel part.Type: ApplicationFiled: May 18, 2012Publication date: November 22, 2012Applicants: SNU R&DB FOUNDATION, SAMSUNG DISPLAY CO., LTD.Inventors: Kyungho JUNG, Sin-Doo LEE, Jun-Hee NA, Jinhwan KIM
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Publication number: 20120293468Abstract: A disclosed apparatus includes a display device having a polarizer, a liquid crystal panel having a first liquid crystal region and a second liquid crystal region of different liquid crystal orientations, and a lenticular lens having a cavity to contain a third liquid crystal region and a fourth liquid crystal region of different liquid crystal orientations, wherein the liquid crystal panel is disposed between the lenticular lens and the display device, and the first liquid crystal region corresponds to the third liquid crystal region, and the second liquid crystal region corresponds to the fourth liquid crystal region.Type: ApplicationFiled: May 11, 2012Publication date: November 22, 2012Applicants: CHIMEI INNOLUX CORPORATION, INNOCOM TECHNOLOGY (SHENZHEN) CO., LTD.Inventor: Cheng-Yi CHEN
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Patent number: 8310622Abstract: An optical plate having improved light scattering power, a method of manufacturing the same and a liquid crystal display having the same. An optical plate includes a base material layer, and a lens portion having a plurality of unit lenses formed on one surface of the base material layer, each of the unit lenses having a convex shape, wherein a diffusion portion is formed in each of the unit lenses. The amount and cost of the light diffusing agent can be reduced, light transmittance can be improved, light uniformity can be enhanced without occurrence of bright lines, and intensity of light to be viewed is improved, thereby enhancing luminance.Type: GrantFiled: November 6, 2008Date of Patent: November 13, 2012Assignee: Samsung Display Co., Ltd.Inventors: Ju-Hwa Ha, Jung-Wook Paek, Myung-Woon Lee
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Patent number: 8306287Abstract: A biometrics authentication system includes: a light source applying light to a living body; a detection section on which the living body is to be placed; a microlens array section configured so that a plurality of microlenses each condensing light from the living body are arranged at intervals; a light shielding section arranged on at least one of a light incidence side and a light exiting side of the microlens array section and having apertures each facing a region where each of the microlenses is arranged; an image pickup device obtaining image pickup data of the living body on the basis of the light condensed by the microlens array section; and an authentication section performing authentication of the living body on the basis of the image pickup data obtained in the image pickup device.Type: GrantFiled: December 29, 2008Date of Patent: November 6, 2012Assignee: Sony CorporationInventors: Junji Kajihara, Isao Ichimura, Kenji Yamamoto, Toshio Watanabe
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Patent number: 8300206Abstract: The present invention provides an electro-optic unit. A lens unit disposed at an upper portion of a display panel has a plurality of lens part. An electro-optic unit is disposed between a display panel and a lens unit, and includes an electro-optic material layer formed as a graded refractive index lens in an electric field. A display device shows a two-dimensional and a three-dimensional image according to a mode of the electro-optic unit. A driving part may form the graded refractive index lens to have the same pitch as the pitch of the lens part. The graded refractive index lens may be formed as a convex lens or a Fresnel lens. The electro-optic unit is displayed to form the Fresnel lens. A driving method enhancing mode conversion velocity of the electro-optic unit is displayed.Type: GrantFiled: July 29, 2009Date of Patent: October 30, 2012Assignee: Samsung Display Co., Ltd.Inventors: Sung-Woon Kim, Hee-Seop Kim, Hae-Young Yun, Jiangang Lu, Kyung-Ho Jung, Seung-Hoon Lee
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Patent number: 8300188Abstract: A liquid crystal display panel includes a liquid crystal panel having a plurality of pixels; a microlens array provided on a light-incident side of the liquid crystal panel; a first polarizing plate and a first optical compensation element provided on a light-outgoing side of the liquid crystal panel; and a second polarizing plate and a second optical compensation element provided on a light-incident side of the microlens array. The retardation of the first optical compensation element along the thickness direction is greater than the retardation of the second optical compensation element along the thickness direction.Type: GrantFiled: October 26, 2007Date of Patent: October 30, 2012Assignee: Sharp Kabushiki KaishaInventor: Naru Usukura
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Publication number: 20120249930Abstract: In one embodiment, a liquid crystal display device includes a lens array unit having a cylindrical lens array constituted by a plurality of cylindrical lenses each having a lens surface and a generatrix corresponding to the lens surface. The lens surface is arranged in a line in a direction orthogonally crossing the generatrix. A first substrate is arranged at a back side of the lens array unit and includes a pixel electrode in a belt shape extending in a different direction from the direction in which the generatrix extends. The pixel electrode is formed in a V character shape. A second substrate is arranged between the lens array unit and the first substrate including a counter electrode in a belt shape commonly arranged on the pixel electrodes extending in a parallel direction to the pixel electrode.Type: ApplicationFiled: March 21, 2012Publication date: October 4, 2012Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Keisuke Takano, Takashi Sasabayashi, Arihiro Takeda, Keiji Tago, Jin Hirosawa, Hitomi Hasegawa, Yusuke Morita, Hirokazu Morimoto
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Patent number: 8279370Abstract: An optical laminate film, a backlight unit, and a liquid crystal display module, the optical laminate film including a multilayer film composed of multiple layers including at least two polymers having different refractive indexes, the multilayer film transmitting only a light component vibrating in a direction parallel to one transmittance axis while reflecting other light components; an embossed diffusing film laminated on one side of the multilayer film, the embossed diffusing film having roughness on a surface thereof; and a microlens film laminated on another side of the multilayer film, the microlens film having microlenses arranged on a surface thereof.Type: GrantFiled: November 15, 2010Date of Patent: October 2, 2012Assignee: Cheil Industries, Inc.Inventors: Jin Woo Lee, Gyu Chan Cho, Sun Hong Park, Sei Jin Oh
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Patent number: 8279377Abstract: A liquid crystal display device of high image quality is provided at a low cost, in which the viewing angle is restricted only in a specific direction. A liquid crystal display device of the present invention, which has a plurality of pixels in a matrix arrangement, includes: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a plurality of microlenses provided on a surface of the first substrate which is opposite to the liquid crystal layer, the microlenses being arranged so as to correspond to the plurality of pixels, and each of the microlenses having a curved surface configured to collect incoming light, wherein d satisfies the following relationship: d>p.((2n)2?1)½ where d is a thickness of the first substrate, p is an arrangement pitch of the plurality of pixels, and n is a refractive index of the major material of the first substrate.Type: GrantFiled: January 23, 2009Date of Patent: October 2, 2012Assignee: Sharp Kabushiki KaishaInventors: Naru Usukura, Toshiyuki Yoshimizu, Seishi Kosegawa, Tadashi Nemoto, Takehiro Murao
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Patent number: 8264625Abstract: A display device includes a first display panel, a second display panel, and an optical panel. The first display panel has a plurality of first display areas and provides a first frame. The second display panel has a plurality of second display areas and provides a second frame. The optical panel has a plurality of optical units with a zooming function. The first display areas and the second display areas are disposed corresponding to the optical units. The first frame is transformed into a first real image through the optical units. The second frame is transformed into a second real image through the optical units. There is a first depth of field between the first real image and the optical panel, and there is a second depth of field between the second real image and the optical panel. The first depth of field differs from the second depth of field.Type: GrantFiled: August 18, 2009Date of Patent: September 11, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventor: Hsiu-Hung Lin
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Patent number: 8259257Abstract: The liquid crystal display apparatus includes a liquid crystal panel and the back light device for emitting the light from a light source to the liquid crystal panel through a lens. The light source includes a first LED for emitting the light of a first color, a second LED for emitting the light of a second color, a third LED for emitting the light of a third color, a fourth LED for emitting the light of the third color, a fifth LED for emitting the light of the second color, and a sixth LED for emitting the light of the first color. The first, second, third, fourth, fifth and sixth LEDs are arranged on the wiring board in such a manner as to offset the deviation of the light distribution.Type: GrantFiled: August 17, 2009Date of Patent: September 4, 2012Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Yutaka Akiba, Ikuo Hiyama, Kiyomi Nakamura, Yoshinori Aono, Makoto Tsumura, Akitoyo Konno, Norihiro Uemura
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Patent number: 8243237Abstract: A device includes a display that includes a transmissive portion, a transflective portion, and a lens array associated with the transflective portion.Type: GrantFiled: November 7, 2006Date of Patent: August 14, 2012Assignee: Sony Mobile Communications ABInventors: Martin Grip, Alexander Hunt
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Publication number: 20120200810Abstract: A display method of forming an image by using a plurality of pixels includes projecting light beams from the plurality of pixels on a pupil of an eye of an observer, and each diameter of the light beams which are incident on the pupil is smaller than a diameter of the pupil. Moreover, a display apparatus which displays an image having a plurality of pixels includes a micro lens array having a lens corresponding to each pixel, and a plurality of light exit points is formed corresponding to each pixel. Furthermore, an electronic equipment has the display apparatus installed thereon.Type: ApplicationFiled: April 5, 2012Publication date: August 9, 2012Inventor: Yoshiaki Horikawa
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Patent number: 8237891Abstract: There is provided a micro lens array (11) in which a plurality of micro lenses (21) is disposed two-dimensionally on a substrate, wherein the focal distance f of the micro lens (21) and distance Ts from the main surface of the micro lens (21) to the substrate surface upon which light is incident meet the following X=Ts/?{square root over (2)}P, Y=f/?{square root over (2)}P where P is a pitch of the micro lenses (21) and (X, Y) is within an X-Y coordinate system surrounded by the following point sets (0.75, 1.00), (0.75, 1.25), (1.00, 1.75), (1.75, 2.50), (2.25, 2.50), (2.25, 2.00), (1.50, 1.25), (1.00, 1.00). The micro lens array can be used to improve the contrast of a liquid crystal display having an optical compensation element provided therein.Type: GrantFiled: June 10, 2005Date of Patent: August 7, 2012Assignee: Sony CorporationInventors: Shinya Watanabe, Shouhei Maezawa, Tomoki Furuya, Shunji Kurita
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Patent number: 8237892Abstract: The present invention is directed to display devices with a brightness enhancement structure comprising display cells comprising partition walls, and brightness enhancement micro-structures. The present invention is also directed to processes for the manufacture of display devices. The processes enable fabricating a display device with the micro-structures aligned with the display cells of the display device.Type: GrantFiled: November 25, 2008Date of Patent: August 7, 2012Assignee: Sipix Imaging, Inc.Inventors: Robert A. Sprague, Craig Lin
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Publication number: 20120188489Abstract: In order to fix lenses of light emitting diodes stably without impairing heat dissipation performance in a liquid crystal display device, the liquid crystal display device includes: a liquid crystal panel; and a light emitting diode substrate (7), which is disposed on a rear surface side of the liquid crystal panel and includes: a plurality of light emitting diode elements (22) disposed along a longitudinal direction; lenses (20) each including a plurality of legs (21), the lenses being disposed on the liquid crystal panel side of the light emitting diode elements (22); and electrodes (23) which are formed on a surface of the light emitting diode substrate (7) and are electrically connected to the light emitting diode elements (22), and all the legs (21) for fixing the lenses (20) to the light emitting diode substrate (7) are disposed directly above the electrodes (23).Type: ApplicationFiled: January 23, 2012Publication date: July 26, 2012Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Masashi BABA, Ikuko IMAJO
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Patent number: 8212969Abstract: Provided are a method and apparatus for manufacturing a display device, which can ensure precise alignment and attachment of a lenticular sheet onto a display panel. The method includes sequentially stacking a display panel and a lenticular sheet on a stage, irradiating light that is incident in parallel toward the display panel and the lenticular sheet from below the display panel, detecting the light that has passed through the display panel and the lenticular sheet, and determining an axial direction of a columnar lens formed on the lenticular sheet.Type: GrantFiled: July 6, 2009Date of Patent: July 3, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Woon Kim, Kyung-Ho Jung, Hee-Seop Kim, Hae-Young Yun, Jiangang Lu, Seung-Hoon Lee
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Liquid crystal display device comprising a diffuser board which includes a plurality of micro lenses
Patent number: 8212963Abstract: An object of the present invention is to provide a liquid-crystal display device which includes a diffuser board that does not produce striped mura on the surface of a liquid crystal panel even if point light sources are used as light sources of a backlight. A backlight apparatus 103 is provided with a diffuser board 103b having diffusion portions 103b1. At each of the diffusion portions 103b1, the light L emitted by a LED module 104 included in a light source unit 103a is reflected by prism patterns P and diffused around the LED module 104. Then, the diffused light is reflected again by a reflecting surface formed on the inner surface of a housing 103c and emitted from the backlight apparatus 103, thereby achieving illuminating light without mura.Type: GrantFiled: June 10, 2008Date of Patent: July 3, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshifumi Sikiguchi, Ikuo Hiyama, Hiroki Kaneko -
Patent number: 8204282Abstract: An image input device is disclosed, including: a lens array in which a plurality of lenses are arrayed; a shielding member configured to prevent a crosstalk on an image surface of light rays passing each of lenses of the lens array; a flat board member configured to regulate a position of a living body in a lens optical axis direction of the lens array when contacting the living body; an image pickup part configured to include an image surface and pick up a compound eye image, which is a set of reduced images of an object inside the living body which position is regulated by the flat board member, the reduced images approximately formed on the image surface by the plurality of lenses of the lens array; and a process part configured to re-compose a single image from the compound eye image picked up by the image pickup part. The image input device inputs the single image re-composed by the process part as an object image.Type: GrantFiled: September 11, 2008Date of Patent: June 19, 2012Assignee: Ricoh Company, Ltd.Inventors: Nobuhiro Morita, Yuji Yamanaka
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Patent number: 8199275Abstract: An electro-optical device includes a first substrate; a second substrate; an electro-optical material, the electro-optical material being disposed between the first and second substrates; prismatic portions that collect light incident on the first substrate, each prismatic portion being in the form of a groove having an opening, disposed in the first substrate, and being adjacent to the electro-optical material; a functional layer that drives the electro-optical material, the functional layer being disposed on a side of the first substrate, the side being adjacent to the electro-optical material, and the functional layer extending over the openings; and first light-shielding portions disposed on the second substrate, each light-shielding portion overlapping a corresponding one of the prismatic portions when viewed in plan.Type: GrantFiled: March 12, 2007Date of Patent: June 12, 2012Assignee: Seiko Epson CorporationInventor: Kazuhisa Mizusako
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Patent number: 8184152Abstract: An apparatus for evaluating a part may include a camera, a camera-holding member for holding the camera in place relative to the part being evaluated, and an indexing surface disposed in a fixed position relative to the camera-holding member. The camera may be positioned to take a simultaneous picture of both the indexing surface and the part in order to evaluate the part using the picture by comparing an indexing surface image with a part image.Type: GrantFiled: December 1, 2008Date of Patent: May 22, 2012Assignee: The Boeing CompanyInventors: John M. Pryor, David P. Banks, Stephen D. Friddell, Nancy J. McGinnis
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Patent number: 8179497Abstract: An object of the present invention is to provide a simply configured liquid crystal display device capable of providing a high front luminance when light obliquely enters a micro lens array.Type: GrantFiled: August 15, 2008Date of Patent: May 15, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tatsuya Sugita, Shinichi Komura, Tetsuya Nagata, Masaya Adachi
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Patent number: 8174641Abstract: A liquid crystal display panel according to the present invention includes: a liquid crystal display panel including an electrical element substrate on which switching elements for controlling the light transmittance of a liquid crystal layer are formed so as to respectively correspond to pixels; a microlens array provided on a light-incident side of the liquid crystal display panel; a support provided on the light-incident side of the liquid crystal display panel so as to be in a peripheral region of the microlens array; a rear-face side optical film attached to the liquid crystal display panel via the support; and a wiring connection substrate mounted to the electrical element substrate. The electrical element substrate includes an overhang which projects from the support in the direction of the wiring connection substrate, and the wiring connection substrate is mounted to the overhang.Type: GrantFiled: August 28, 2007Date of Patent: May 8, 2012Assignee: Sharp Kabushiki KaishaInventors: Seishi Kosegawa, Naru Usukura, Takehiro Murao
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Patent number: 8149359Abstract: A display panel, a display device, and a terminal device, which can achieve a high image quality by decreasing deterioration of the image quality that may be caused due to combining a reflection plate including an uneven structure with an image distributing device, are provided. The display panel includes a lenticular lens for distributing light emitted from each of pixels towards different directions from each other along an arranging direction (a first direction) of a pixel for displaying an image for a first viewpoint and a pixel for displaying an image for a second viewpoint within a pixel unit, wherein a reflection plate including an uneven structure is formed in each of the pixels, and a layout pattern of the uneven structure on the reflection plate is different to the lenticular lens.Type: GrantFiled: July 18, 2011Date of Patent: April 3, 2012Assignee: NEC LCD Technologies, LtdInventor: Shinichi Uehara
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Patent number: 8149495Abstract: A reflective display, comprising a plurality of pixels (10), each having a first electrode, a light-modifying layer (12), and a second electrode (3; 16) arranged to enable formation of an electric field in the light-modifying layer (12) through application of a voltage between the electrodes. The pixel (10) further includes an active portion (16) which is switchable between light-modifying states by means of said electric field, and an inactive portion (17). The inactive portion (17) is arranged for reflecting light so as to direct at least a fraction of incoming light (20) impinging on the inactive portion (17) towards the active portion (16). As a result, a contrast ratio of the reflective display is improved, since light is now directed from the inactive portion towards the active portion and thus contributes to the displayed image as observed by a viewer.Type: GrantFiled: December 11, 2006Date of Patent: April 3, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Sander Jurgen Roosendaal, Martinus Hermanus Wilhelmus Maria Van Delden
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Publication number: 20120050651Abstract: A switchable viewing angle display method is provided. The method provides a front panel array of display pixels. Also provided is an array of microlenses underlying the array of display pixels. Each microlens has a focal point and each microlens is associated with a corresponding block of display pixels. A backlight panel has an edge-coupled waveguide pipe with an optical input connected to a column of light emitting diodes (LEDs). The backlight panel includes a top array of selectively enabled extraction pixels, a planar mirror underlying the waveguide pipe, and a bottom array of selectively enabled extraction pixels interposed between the waveguide pipe and the planar mirror. In response to accepting a display viewing angle change command, an extraction pixel is enabled from either the top array or the bottom array, and a waveguide pipe light extraction position is formed, changing the viewing angle.Type: ApplicationFiled: June 30, 2011Publication date: March 1, 2012Inventors: Jiandong Huang, Apostolos T. Voutsas