Reflector Patents (Class 349/113)
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Patent number: 8384854Abstract: A liquid crystal display apparatus includes a backlight unit, a second polarization layer, a liquid crystal layer disposed between the backlight unit and the second polarization layer, a first polarization layer disposed between the backlight unit and the liquid crystal layer. In an embodiment, a surface of the first polarization layer facing the backlight unit includes a reflective surface and a surface of the first polarization layer facing the backlight unit includes an absorbent surface. In another embodiment, the first polarization layer includes grids, which include a metal, and absorbing members, which include dielectric materials. In another embodiment, the first polarization layer includes grids, each of which includes a first component including a dielectric material and a second component including a metal.Type: GrantFiled: April 24, 2009Date of Patent: February 26, 2013Assignee: Samsung Display Co., Ltd.Inventors: Young-Woo Song, Jong-Hyuk Lee, Kyu-Hwan Hwang, Jong-Seok Oh, Joon-Gu Lee, Jae-Heung Ha, Chul-Woo Park
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Patent number: 8384860Abstract: A liquid crystal display device has a plurality of pixels and a reflection section for reflecting incident light toward a display surface. The reflection section includes a metal layer having a plurality of apertures, and a reflective layer formed on the metal layer with an insulating layer interposed therebetween. A surface of the reflective layer includes a plurality of recesses or protrusions formed in accordance with a cross-sectional shape of the metal layer.Type: GrantFiled: May 29, 2008Date of Patent: February 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Yoshihito Hara, Mitsunori Imade, Junya Shimada
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Patent number: 8379183Abstract: An embodiment of the present invention discloses a Liquid Crystal on Silicon (LCOS) display unit, in which a Metal-Insulator-Metal (MIM) capacitor consisting of a micromirror layer, a insulation layer and a light shielding layer is formed by grounding the light shielding layer on a pixel switch circuit layer. Therefore the pixel switch circuit and the capacitor are in vertical distribution, that is, the switch circuit and the capacitor both have an allowable design area of the size of one pixel. Another embodiment of the present invention provides a method for forming a Liquid Crystal on Silicon (LCOS) display unit.Type: GrantFiled: June 8, 2011Date of Patent: February 19, 2013Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Herb He Huang, Xianyong Pu, Jianhong Mao, Yiqun Chen, Jing Fu, Zhongshan Hong, Yanghui Xiang
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Patent number: 8379174Abstract: A liquid crystal display structure includes a first substrate panel, a second substrate panel, and a liquid crystal layer disposed between the first substrate panel and the second substrate panel. Pixel portions are formed by respective electrodes for applying a voltage to the liquid crystal layer. The pixel portions include a transparent substrate panel, an organic insulating layer, a patterned reflective layer, a dielectric layer, a transparent conductive layer and a thin film transistor. The organic insulating layer is formed over the transparent substrate panel. The patterned reflective layer is formed over the organic insulating layer exposing a portion of the organic insulating layer. The dielectric layer is formed over the patterned reflective layer. The dielectric layer has a smooth upper surface. The transparent conductive layer is over the dielectric layer.Type: GrantFiled: September 17, 2002Date of Patent: February 19, 2013Assignee: Au Optronics CorporationInventors: Fang-Chen Luo, Wei-Chih Chang
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Patent number: 8379043Abstract: An apparatus and method allows a driver to read a map, directions or text while driving a car without taking their eyes away from the road. An electronic display device may be mounted to, or made integrally with, a dashboard of an automobile. The electronic display device may be programmed to display inverted (mirror image) information thereupon. When the electronic display is disposed on the automobile's dashboard, the windshield may reflect the inverted image as a normal scene for the driver to visualize. Since the image is displayed on the windshield, the driver can see the image without having to take their eyes off the road.Type: GrantFiled: March 20, 2012Date of Patent: February 19, 2013Inventor: David Lester Paige
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Publication number: 20130038826Abstract: An optical system according to an embodiment of the present invention includes a reflective imaging element having a first principal face which is struck by light emitted from a display panel, a second principal face parallel to the first principal face, and two mutually-orthogonal specular elements being perpendicular to the first principal face, and causes an image displayed on a display surface of the display panel to form an image at a position of planar symmetry with respect to the reflective imaging element as a plane of symmetry. A transparent substrate which is disposed on at least either the first principal face side or the second principal face side of the reflective imaging element is further included, and first light striking the transparent substrate is linearly polarized light, with a large proportion of p-polarized light.Type: ApplicationFiled: April 26, 2010Publication date: February 14, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Kentarou Imamura, Shigeto Yoshida, Takafumi Shimatani, Hisashi Watanabe
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Publication number: 20130038825Abstract: A display device includes a pair of substrates, a display medium interposed between the pair of substrates, and a pixel including a reflective region for performing reflective display and a transmissive region for performing transmissive display. A voltage is applied to the display medium through at least a pixel electrode and a common electrode, at least one the pixel electrode and the common electrode being provided with a slit. The pixel electrode can be provided with the slit in at least the reflective region, and the common electrode is provided with the slit in the reflective region and/or the transmissive region.Type: ApplicationFiled: February 10, 2012Publication date: February 14, 2013Applicant: Sharp Kabushiki KaishaInventor: Kenji NISHIDA
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Patent number: 8373830Abstract: A liquid crystal display device including a first substrate, a second substrate facing and spaced away from the first substrate, a liquid crystal layer sandwiched between the first and second substrates, a switching device formed on the first substrate, a first electrically insulating film randomly patterned on the first substrate, a second electrically insulating film covering the first electrically insulating film therewith, and having a wavy surface, and a reflection electrode formed on the second electrically insulating film, and electrically connected to an electrode of the switching device, wherein a light passing through the second substrate and the liquid crystal layer is reflected at the reflection electrode, and the second electrically insulating film extends outwardly from the first electrically insulating film by a certain length at an end of a display region in which images are to be displayed, such that a step formed by the first and second electrically insulating films in the vicinity of the enType: GrantFiled: August 8, 2011Date of Patent: February 12, 2013Assignee: NLT Technologies, Ltd.Inventors: Hironori Kikkawa, Michiaki Sakamoto, Yuichi Yamaguchi, Hidenori Ikeno, Fumihiko Matsuno
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Patent number: 8373829Abstract: A light source comprising sidelight type backlight light guide plate (L), wherein a transmittance angle dependent layer (T1) which transmits normally incident light and reflects obliquely incident light is disposed on one surface of the sidelight type backlight light guide plate (L), and a reflection plate (R) having a repetitive slope structure is disposed on the other surface of the sidelight type backlight light guide plate (L). The invention light source is less in absorption loss due to repetition of light reflection and the like.Type: GrantFiled: October 26, 2010Date of Patent: February 12, 2013Assignee: Nitto Denko CorporationInventors: Kazutaka Hara, Naoki Takahashi, Kentarou Takeda, Miki Shiraogawa
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Publication number: 20130027641Abstract: To provide an anti-glare sheet for a liquid crystal display device with excellent vivid complexion and blackness and excellent image crispness, that is suitable for combination of dynamic images and still images. An anti-glare sheet for a liquid crystal display device having a diffusion factor in the interior on at least one side of a transparent base material and provided with a functional layer with an irregular surface on the side opposite the transparent base material side, and either having or not having a transparent resin layer with a film thickness of 1.Type: ApplicationFiled: April 13, 2011Publication date: January 31, 2013Inventors: Takashi Kodama, Gen Furui, Makoto Honda
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Patent number: 8358396Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.Type: GrantFiled: December 22, 2011Date of Patent: January 22, 2013Assignee: Seiko Epson CorporationInventor: Masahiro Yasukawa
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Patent number: 8350875Abstract: A mobile terminal emitting light according to a temperature and a display control method thereof are provided. The mobile terminal includes a display part activated in response to a control signal, a temperature sensor part for measuring a temperature of the mobile terminal and outputting a voltage corresponding to the measured temperature value, and a central controller for outputting the control signal to activate the display part included in the mobile terminal when the voltage input from the temperature sensor part exceeds a predetermined reference value. Therefore, it is possible to improve the design of the mobile terminal.Type: GrantFiled: August 19, 2008Date of Patent: January 8, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Kun-Hyoung Kim
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Patent number: 8345187Abstract: Provided is a liquid crystal display device including: an optical switching member; a light guide panel; and a light source, the light guide panel including, on at least one of a front surface and a back surface thereof, a plurality of surface structures including: a first raised surface extending outward being formed as a free surface; a first light reflection surface entering inside from the first raised surface; a second light reflection surface extending outside from the first light reflection surface; and a second raised surface which continues from the second light reflection surface and is formed as a free surface, whereby a liquid crystal display device may be obtained, which includes a thin light guide panel with a thickness of, for example, 1 mm or less.Type: GrantFiled: January 14, 2010Date of Patent: January 1, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hiroshi Nakamoto, Akiyoshi Tobe
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Publication number: 20120320322Abstract: A reflective imaging element includes: a plurality of holes penetrating through the plate-like substrate along a thickness direction thereof; two orthogonally-disposed specular elements on inner walls of the plurality of holes; a first principal face on which light from an object is received; a second principal face parallel to the first principal face; and two taper elements opposing the two specular elements. The two taper elements each have a first side parallel to the first principal face, a second side orthogonal to the first principal face and to the first side, and a hypotenuse meeting the first and second sides and constituting an angle ? with the second side. An angle constituted by a normal direction of the first principal face and an incident direction of light striking the first principal face defines an incident angle ?, such that, in a range of 0°<?<90°, the angle ? satisfies (90°??)/4??.Type: ApplicationFiled: February 25, 2011Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Kentarou Imamura, Shigeto Yoshida, Takafumi Shimatani
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Publication number: 20120320315Abstract: A display apparatus which comprises a liquid crystal panel and displays a predetermined image comprises: a reflective panel which is arranged opposite to the liquid crystal panel and reflects light emitted from the liquid crystal panel; and image capture devices which are located in the liquid crystal panel and capture an image on a display surface of the liquid crystal panel using light reflected by the reflective panel. An image display condition of the liquid crystal panel of the display apparatus is captured by the display apparatus itself.Type: ApplicationFiled: June 13, 2012Publication date: December 20, 2012Inventor: Koichi SUGIYAMA
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Publication number: 20120320305Abstract: The patterning of objects (e.g., protective poly-films, heat-spreaders, and other components placed proximate to the backlight of an LCD) with multiple beads or raised protrusions is disclosed. The beads or protrusions can have a uniform or non-uniform size and can be arranged such that they have a uniform or non-uniform pattern density. The beads or protrusions can be patterned on a surface of the object to provide separation between a non-raised surface of the object and a surface of an adjacent item, such as a reflector film.Type: ApplicationFiled: June 17, 2011Publication date: December 20, 2012Inventors: Joshua G. WURZEL, Steven J. MARTISAUSKAS
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Patent number: 8334539Abstract: A thin film transistor array panel includes a first insulation substrate, a plurality of data wires formed on the first insulation substrate and extending in a first direction, a data pad region formed on the first insulation substrate and having plural ones of the data wires extending therefrom, and an organic layer formed on the data wires, where the organic layer has a greater thickness where it is disposed over the data wires than the thickness it has between the data wires. The surface of the organic layer of the data pad region includes minute slit patterns that extend parallel to the first direction of the data wires, and the data wires have line boundaries of a zigzag shape.Type: GrantFiled: July 30, 2009Date of Patent: December 18, 2012Assignee: Samsung Display Co., Ltd.Inventors: Dong-Gyu Kim, Yeong-Keun Kwon, Ju-Hee Lee
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Publication number: 20120313906Abstract: A semi-transmissive display apparatus includes: a reflective electrode provided for each pixel, wherein the semi-transmissive display apparatus performs reflective display operation by using the reflective electrodes and transmissive display operation by using spaces between the reflective electrodes of the pixels.Type: ApplicationFiled: June 2, 2012Publication date: December 13, 2012Applicant: SONY CORPORATIONInventors: Masaya Tamaki, Kazuyuki Maeda
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Publication number: 20120314165Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device presenting a reduced color addition and an improved bright room contrast. The liquid crystal display panel of the present invention includes wirings made of a metal having at least 90% reflection over a wavelength region within the visible light region, where the reflectance of the liquid crystal panel over a wavelength range of 600 to 700 nm at the display surface is no greater than 150% of the reflectance at the wavelength of 550 nm at the display surface.Type: ApplicationFiled: November 5, 2010Publication date: December 13, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Satoru Kishimoto, Toshio Fujii
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Patent number: 8330907Abstract: There is provided a liquid crystal display element (1) including a transparent substrate (2) having formed on a surface of a glass substrate (2a) thereof a transparent electrode (6) and an alignment layer (18) covering the transparent electrode (6), a drive circuit board (3) disposed opposite to the transparent substrate (2) and having formed on a surface of a silicon substrate (3a) thereon opposite to the transparent electrode (6) a plurality of switching drive circuits (9) and a plurality of reflection pixel electrodes (15), corresponding to pixels (12a), respectively, a protective layer (16) covering the plurality of reflection pixel electrodes (15) and an alignment layer (19) covering the protective layer (16) and a liquid crystal layer (4) interposed between the alignment layer (18) on the transparent substrate (2) and the alignment layer (19) on the drive circuit board (3), the protective layer (16) being a stack of at least two dielectric layers (16a, 16b) different in refractive index from each othType: GrantFiled: November 17, 2004Date of Patent: December 11, 2012Assignee: Sony CorporationInventor: Shunichi Hashimoto
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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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Patent number: 8325303Abstract: A liquid-crystal display device makes it possible to attach an optical element to a liquid-crystal display panel with high positional accuracy while avoiding or minimizing the enlargement of the picture-frame region (i.e., the non-display region) induced by the formation of markers on the panel and the increase of the fabrication cost. The panel comprises a main substrate, an opposite substrate, and a liquid crystal enclosed in a gap between the main and opposite substrates, wherein a polarizer plate is attached at least to the opposite substrate. Markers for attaching an optical element to the panel are formed at positions that overlap with the polarizer plate in a non-display region on the main or opposite substrate. Alignment direction regulators regulate the alignment of the liquid crystal molecules to a predetermined direction in the vicinities of the markers, allowing light to pass through at least the opposite substrate.Type: GrantFiled: October 24, 2011Date of Patent: December 4, 2012Assignee: NEC LCD Technologies, Ltd.Inventors: Tsutomu Hiroya, Koji Shigemura, Jin Matsushima
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Publication number: 20120300144Abstract: A dual mode LCD device includes first and second substrates facing each other; a first electrode on an inner surface of the first substrate and having a plate shape; a first insulating layer on the first electrode; a second electrode and a third electrode on the first insulating layer, being spaced apart from each other and extending along a first direction; a fourth electrode on an inner surface of the second substrate; and a liquid crystal layer interposed between the first and second substrates and including chiral dopants, wherein liquid crystal molecules of the liquid crystal layer are stably arranged in a first twist state and a second twist state, wherein the first and second twist states are used for a memory mode and the second twist state and a vertical alignment state are used for a dynamic mode.Type: ApplicationFiled: December 22, 2011Publication date: November 29, 2012Inventors: Joong-Ha LEE, Wook-Sung Kim, Dong-Guk Kim
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Patent number: 8319920Abstract: A transflective liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line on an inner surface of the first substrate; a data line crossing the gate line to define a pixel region including a reflective portion and a transmissive portion, wherein the transmissive portion has a polygonal shape inscribed in a rectangle, and a circumference of the transmissive portion is less than the circumference of the rectangle; a thin film transistor connected to the gate line and the data line; a passivation layer on the thin film transistor, the passivation layer having a opening corresponding to the transmissive portion; a reflective layer corresponding to the reflective portion on the passivation layer; a transparent electrode corresponding to the pixel region over the reflective layer; a color filter layer on an inner surface of the second substrate; a common electrode on the color filter layer; and a liquid crystal layer between the common electrode and theType: GrantFiled: May 17, 2010Date of Patent: November 27, 2012Assignee: LG Display Co., Ltd.Inventors: Kyoung-Su Ha, Mi-Sook Nam, Su-Seok Choi, Sang-Min Jang
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Patent number: 8319915Abstract: The present invention relates to a liquid crystal on silicon imager. The imager includes a backplane substrate, a reflective polarization electrode array, a planar liquid crystal cell, a transparent conductive film and a transparent plate. The reflective polarization electrode array is placed onto the backplane substrate, consists of a plurality of reflective polarization electrodes, and a pattern of each of the reflective polarization electrodes is configured in a planar arrangement having regularly spaced and electrically isolated gaps in parallel to each other. The planar liquid crystal cell is placed above the reflective polarization electrode array. The transparent conductive film is placed above the planar liquid crystal cell. The transparent plate is placed on the transparent conductive film and facing incident light.Type: GrantFiled: August 3, 2010Date of Patent: November 27, 2012Assignee: Shanghai Lexvu Opto Microelectronics Technology Co., Ltd.Inventor: Herb He Huang
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Patent number: 8314904Abstract: A pixel structure of a reflective display includes a first sub-pixel for reflecting a first color light, a second sub-pixel for reflecting a second color light, and a third sub-pixel for reflecting a third color light. The first color light, the second color light, and the third color light have different colors. The second sub-pixel and the third sub-pixel are aligned side by side and arranged on the same side of the first sub-pixel. A position of the first sub-pixel is corresponding to positions of the second sub-pixel and the third sub-pixel. A pixel area of the first sub-pixel is greater than that of the second sub-pixel, and is greater than that of the third sub-pixel.Type: GrantFiled: January 15, 2010Date of Patent: November 20, 2012Assignee: Industrial Technology Research InstituteInventor: Cheng-Hsi Hsieh
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Patent number: 8314907Abstract: A liquid crystal display comprises a plurality of pixels, each pixel comprising three or more sub-pixels. A first sub-pixel of the three or more sub-pixels comprises a first transmissive part that has a first transmissive area, and a first reflective part having a first reflective area. A second sub-pixel comprises a second transmissive part that has a second transmissive area, and a second reflective part that has a second reflective area. A third sub-pixel comprises a third transmissive part that has a third transmissive area, and a third reflective part that has a third reflective area. At least two among the first transmissive area, the second transmissive area, and the third transmissive area are different in size. The first reflective area, the second reflective area, and the third reflective area are equal in size.Type: GrantFiled: February 25, 2010Date of Patent: November 20, 2012Assignee: Pixel QI CorporationInventors: Mary Lou Jepsen, Carlin J. Vieri, Ruibo Lu
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Patent number: 8310625Abstract: A liquid crystal display device (100) according to the present invention includes: a scattering liquid crystal panel (110) including a scattering-type liquid crystal layer (140) which is capable of taking a transparent state; and a scattering state and a retroreflection plate (150). The scattering liquid crystal panel (110) before being combined with the retroreflection plate (150) satisfies the relationship of 0.45?log(I0-10/I20-30)?1.48, where, regarding light which enters through a rear face (110b) of the scattering liquid crystal panel (110) and goes out through a front face (110a), I0-10 represents a mean value of scattering intensity of light which goes out at an angle in a range from 0 degrees to 10 degrees with respect to a normal direction of the front face (110a), and I20-30 represents a mean value of scattering intensity of light which goes out in a range from 20 degrees to 30 degrees.Type: GrantFiled: May 2, 2008Date of Patent: November 13, 2012Assignee: Sharp Kabushiki KaishaInventors: Sayuri Fujiwara, Kiyoshi Minoura, Eiji Satoh, Yasushi Asaoka
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Publication number: 20120281171Abstract: The present invention provides a liquid crystal display device having a sufficiently improved reflectance. The liquid crystal display device of the present invention is a liquid crystal display device including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, at least one of the pair of the substrates including an insulating layer and a reflective pixel electrode for reflective display, the insulating layer including a flat part surrounding the reflective pixel electrode, convex portions under the reflective pixel electrode, and a bevel part inclining downward from the flat part between the flat part and the convex portions, the convex portions having an average diameter of 1 to 50 ?m, and vertex points of the reflective pixel electrode layer on the convex portions being not lower than the flat part.Type: ApplicationFiled: October 26, 2010Publication date: November 8, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Masayuki Takashima, Katsuya Ogawa
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Patent number: 8305527Abstract: A color separation system is disclosed, which comprises: a backlight source, being highly collimated and used for providing an incident beam; a color separation module, formed with a first color separation film for separating the incident beam basing on wavelength while deflecting the optical paths of the resulting split beams; and a beam splitting module, being configured with at least one beam splitting plate and a liquid crystal layer; wherein, the at least one beam splitting plate is used for converging the beams from the color separation module while deflecting the optical paths thereof for enabling those to be discharged thereout following a normal direction of a light emitting surface of the backlight source.Type: GrantFiled: May 17, 2010Date of Patent: November 6, 2012Assignee: Industrial Technology Research InstituteInventors: Chi-Hung Lee, Hui-Hsiung Lin, Jen-Hui Tsai, Yu-Nan Pao, Chin-Ju Hsu
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Patent number: 8300183Abstract: The present invention relates to a liquid crystal display, more specifically, to a single layer reflective full color cholesteric display employing full spectrum circularly polarization. The display has not only zero-field long time memory but also paper-like super high brightness and contrast.Type: GrantFiled: November 15, 2010Date of Patent: October 30, 2012Assignee: MacroDisplay Inc.Inventor: Yao-Dong Ma
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Patent number: 8300172Abstract: To improve luminance of a backlight, a white reflective film having a coating layer containing spherical particles on at least one side of a white film, in which an absolute value of refractive index difference between the spherical particles and a binder resin forming the coating layer is 0.10 or less, and the spherical particles are nonporous is provided.Type: GrantFiled: April 23, 2008Date of Patent: October 30, 2012Assignee: Toray Industries, Inc.Inventors: Yoshikazu Sato, Yoshihiko Sakaguchi, Osamu Watanabe
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Patent number: 8300186Abstract: A liquid crystal display device, which can be a transflective-type or a reflection-type, includes a reflection section arranged to reflect incident light toward a display surface, wherein the reflection section includes a reflective layer provided on a substrate, and includes a first recess formed in a surface of the reflective layer and a second recess formed in the surface of the reflective layer in the first recess. The first recess corresponds to an aperture of a Cs metal layer, and the second recess corresponds to an aperture of a semiconductor layer. The transflective-type or reflection-type liquid crystal display device has a high image quality at low cost.Type: GrantFiled: April 5, 2007Date of Patent: October 30, 2012Assignee: Sharp Kabushiki KaishaInventors: Hajime Imai, Tetsuo Kikuchi, Hideki Kitagawa, Yoshihito Hara
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Patent number: 8300187Abstract: A reflective liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment layer, and a second alignment layer. The first substrate and the second substrate are disposed oppositely to each other. The liquid crystal layer is disposed between the first substrate and the second substrate. The liquid crystal layer includes a plurality of liquid crystal molecules for reflecting light within a wavelength range and allowing light beyond the wavelength range to pass through. The second alignment layer is disposed on an inner side of the first substrate facing the second substrate, and the second alignment layer is employed to absorb the light passing through the liquid crystal layer and align the liquid crystal molecules.Type: GrantFiled: March 29, 2011Date of Patent: October 30, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Sheng-Fa Liu, Yu-Hsien Chen, Bao-Sian Ciou, Chun-Yu Shen, Huai-An Li
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Publication number: 20120268680Abstract: A display panel includes: a liquid crystal element; and a transistor including a gate electrode, a source electrode, and a drain electrode. The liquid crystal element and the transistor are provided for each sub-pixel, and the drain electrode serves as a pixel electrode that drives the liquid crystal element.Type: ApplicationFiled: April 12, 2012Publication date: October 25, 2012Applicant: SONY CORPORATIONInventors: Hiroki Sugiyama, Toshiharu Matsushima
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Patent number: 8294853Abstract: An object of the invention is to accurately and easily manufacture a color filter. A method of manufacturing a color filter comprises: a first step of forming a first rib (220) forming a light shield layer and a second rib (230) having a smaller height than the first rib (220) in pattern on a base layer (1) by means of a photolithography method; a second step of forming a step-forming layer (4) by dripping an optical transmissive material into an area defined by the first and second ribs (220, 230) by means of ink-jet technique; and a third step of forming a coloring layer by dripping an optical coloring material (5) into an area defined by the first rib (220) by means of ink-jet technique after forming the step-forming layer (4).Type: GrantFiled: July 14, 2005Date of Patent: October 23, 2012Assignee: TPO Hong Kong Holding Limited Corp.Inventor: Yasuhiro Matsushita
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Patent number: 8294854Abstract: A liquid crystal display device includes a reflection region for reflecting incident light toward a display surface, wherein, the reflection region includes a metal layer formed on a substrate, a semiconductor layer formed above the metal layer, and a reflective layer formed above the semiconductor layer; and the reflection region includes a first recess formed on a surface of the reflective layer, a second recess formed on the surface of the reflective layer in the first recess, and a third recess formed on the surface of the reflective layer in the second recess. The liquid crystal display device provides a low-cost transflective-type or reflection-type liquid crystal display device having a high image quality.Type: GrantFiled: April 5, 2007Date of Patent: October 23, 2012Assignee: Sharp Kabushiki KaishaInventors: Tetsuo Kikuchi, Hajime Imai, Hideki Kitagawa, Mitsunori Imade, Yoshihito Hara, Junya Shimada, Takao Matsumoto
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Patent number: 8289482Abstract: The present invention in one aspect relates to a transflective liquid crystal display (LCD) comprising a plurality of pixels. Each pixel includes a first structure defining a reflective area and a transmissive area adjacent to the reflective area, a second structure positioned apart from the first structure to define a single cell gap therebetween, a liquid crystal layer positioned in the cell gap, and a plurality of electrodes formed on one of the first structure and the second structure such that at least two electrodes are positioned in the transmissive area and define a first distance, d1, therebetween, and at least two electrodes are positioned in the reflective area and define a second distance, d2, therebetween, where d2>d1, preferably, d2=?{square root over (2)}d1.Type: GrantFiled: December 16, 2009Date of Patent: October 16, 2012Assignee: Au Optronics CorporationInventors: Chia-Chiang Hsiao, Chih-Wen Chen, Li-Chih Hsu
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Patent number: 8289461Abstract: A transflective-type liquid crystal display device with a high image quality which has a high aperture ratio and an excellent efficiency of utility of reflected light is provided at low cost. A liquid crystal display device according to the present invention is a liquid crystal display device having a transistor and a reflection section in each of a plurality of pixels; the reflection section includes a metal layer, an insulating layer formed on the metal layer, a semiconductor layer formed on the insulating layer, and a reflective layer formed on the semiconductor layer; a plurality of recesses are formed on the surface of the reflective layer; a storage capacitor is formed between at least a portion of the metal layer and at least a portion of the reflective layer; and at least one of the metal layer and the reflective layer includes two portions which are electrically isolated from each other.Type: GrantFiled: December 6, 2007Date of Patent: October 16, 2012Assignee: Sharp Kabushiki KaishaInventors: Hajime Imai, Hitoshi Matsumoto
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Patent number: 8289489Abstract: Provided are a fringe-field-switching (FFS)-mode liquid crystal display (LCD) and a method of manufacturing the same. The FFS-mode LCD includes a transparent common electrode, a conductive reflection structure electrically connected to the transparent common electrode, and a transparent pixel electrode formed on the conductive reflection structure and including a plurality of slits. The transparent common electrode is formed on a region including a data line and a gate line so that respective unit pixel regions can be electrically connected to one another.Type: GrantFiled: January 22, 2010Date of Patent: October 16, 2012Assignee: Hydis Technologies Co., Ltd.Inventors: Moo Shik Im, Dong Hae Seo, Dae Lim Choi, Jong Kyun Park, Soo Young Choi
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Patent number: 8284356Abstract: An LCD device includes a reflective area in each pixel. A reflection film having a convex-concave surface is provided in the reflective area, film in cross section configuration is formed. Each pixel includes a pixel electrode and a common electrode for applying a lateral electric field on a LC layer. The inclination angle of the reflection film has an inclination angle distribution, wherein the angle component in an area corresponding to the electrodes has a lower angle distribution than the angle components in an area corresponding to a gap between adjacent two of the electrodes.Type: GrantFiled: March 16, 2010Date of Patent: October 9, 2012Assignee: NLT Technologies, Ltd.Inventors: Kenichirou Naka, Michiaki Sakamoto, Hiroshi Nagai, Kenichi Mori
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Publication number: 20120249938Abstract: A Liquid Crystal (LC) panel includes a substrate and a plurality of metal layers. The substrate has a reflective area, and the metal layers are formed on the substrate. A first reflective metal layer is formed on a surface of the metal layers within a reflective area, and is processed by a mask procedure to form a plurality of first reflective bumps. A second reflective metal layer is formed on the first reflective bumps, and is processed by a mask procedure to form a plurality of second reflective bumps located between the first reflective bumps. The second reflective bumps are higher than the first reflective bumps, so as to form a reflective metal layer having an uneven surface with vertical mismatch.Type: ApplicationFiled: October 20, 2011Publication date: October 4, 2012Inventors: Sz-Cheng LEE, Chin-Hai Huang
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Patent number: 8268109Abstract: Example embodiments relate to a method of forming a polymer dispersed liquid crystal (PDLC) layer including a dichroic dye. A first PDLC layer including the dichroic dye and a second PDLC layer having no dichroic dye may be bonded to each other so as to form the desired PDLC layer.Type: GrantFiled: February 17, 2010Date of Patent: September 18, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Kyu-young Hwang, Jae-eun Jang, Gae-hwang Lee, Jae-eun Jung
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Publication number: 20120224112Abstract: A substrate is provided having a pixel region including a pixel electrode and a switching element. A periphery region in the periphery of the pixel region includes a first light-shielding film, the first light-shielding film being formed from the same layer as the pixel electrode. A passivation film that covers the pixel electrode and the first light-shielding film is provided.Type: ApplicationFiled: May 11, 2012Publication date: September 6, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Masahiro YASUKAWA
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Patent number: 8259265Abstract: The invention provides a liquid crystal display panel, a liquid crystal display apparatus and a method for manufacturing the liquid crystal display panel. The liquid crystal display panel includes a first substrate and a second substrate which are opposite to each other and a liquid crystal layer between the two substrates. On one side of the first substrate which is opposite to the second substrate, there is a solar battery unit and a Thin Film Transistor; and the solar battery unit includes a first electrode layer, a photoelectric conversion layer and a second electrode layer which are sequentially disposed in stack. In the invention, the solar battery is configured between the two substrates, and therefore the size of the panel is not increased and the structure is simple.Type: GrantFiled: May 22, 2009Date of Patent: September 4, 2012Assignee: Infovision Optoelectronics (Kunshan) Co., Ltd.Inventors: Te-Chen Chung, Chia-Ta Liao
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Publication number: 20120218498Abstract: An optically controlled deformable reflective/refractive assembly includes a deformable membrane structure (10) having a reflecting/refractive, electrically conductive surface (10?), which is associated with a rigid photoconductive substrate (14) having an electrically conductive layer (14?) on one side. An electric biasing arrangement applies a potential difference (V0) across the membrane structure (10). A controlling light source (20) illuminates the photoconductive substrate (14) in correspondence of an active region, wherein the light source is arranged for selectively illuminating the substrate (14) by emitting at least an optical beam (B) adapted to generate in an area of the substrate (14) a local electrical charge density proportional to the spatial light intensity of the beam (B) and responsible for a local deformation of the membrane structure (10).Type: ApplicationFiled: October 30, 2009Publication date: August 30, 2012Applicant: Consiglio Nazionale Delle RicercheInventors: Stefano Bonora, Stefania Residori, Umberto Bortolozzo
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Patent number: 8253869Abstract: A liquid crystal display device with a touch panel has a reflective display region and a transmissive display region, at least the transmissive display region including a liquid crystal layer energizable according to a lateral electric field mode. The liquid crystal display device includes a liquid crystal layer held between a pair of substrate disposed in confronting relation to each other, observer-side circular polarizer 9 disposed outwardly of one of the substrates, back-side circular polarizer 8 disposed outwardly of the other substrate, observer-side compensator 11 for reducing refractive index anisotropy of the liquid crystal layer in the reflective display region and the liquid crystal layer in the transmissive display region, and touch panel 13 disposed between observer-side circular polarizer 9 and observer-side compensator 11.Type: GrantFiled: March 20, 2008Date of Patent: August 28, 2012Assignee: NLT Technologies, Ltd.Inventors: Jin Matsushima, Ken Sumiyoshi, Shinichi Uehara
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Publication number: 20120206679Abstract: A liquid crystal display includes a pair of substrates and a liquid crystal layer interposed between the substrates and has a reflective area and a transmissive area. At least one of the substrates is provided with a retardation film whose phase difference differs between the reflective area and the transmissive area. Alternatively, at least one of the substrates is provided with a retardation film whose slow axis differs between the reflective area and the transmissive area.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Applicant: SONY CORPORATIONInventors: Tsuyoshi Ohyama, Masato Imai, Kazuyuki Endo
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LIGHT MODULATOR FOR A DISPLAY FOR DISPLAYING TWO-DIMENSIONAL AND/OR THREE-DIMENSIONAL IMAGE CONTENTS
Publication number: 20120206667Abstract: A light modulator, for a display for the presentation of two- and/or three-dimensional image contents or image sequences, includes two opposing substrates and electrodes. At least one liquid crystal layer is provided between the two substrates. An alignment means is provided on the substrate which faces the liquid crystal layer to set a predeterminable pre-tilt of the liquid crystals. The orientation of the liquid crystals can be controlled in a given range through an electric field generated by the electrodes. The alignment means is controllable and can be controlled to modify the pre-tilt of the liquid crystals. The alignment can be controlled such the orientation of the liquid crystals can be oriented outside the given range or so that the pre-tilt of the liquid crystals can be set specifically for certain positions.Type: ApplicationFiled: September 29, 2010Publication date: August 16, 2012Inventors: Bo Kroll, Norbert Leister, Stephen Reichelt, Gerald Futterer -
Patent number: 8243236Abstract: A transflective-type and a reflection-type liquid crystal display device having a high reflection efficiency and a high image quality are provided. A liquid crystal display device of the present invention is a liquid crystal display device including a reflection region for reflecting incident light toward a display surface, wherein the reflection region includes a metal layer, an insulating layer formed on the metal layer, a semiconductor layer formed on the insulating layer, and a reflective layer formed on the semiconductor layer; a plurality of recesses are formed in at least one of the metal layer, the insulating layer and the semiconductor layer; a plurality of dents are formed in the reflective layer in the reflection region according to the plurality of recesses; and a shortest distance a between edge portions of at least two of the plurality of recesses is 4 ?m or less.Type: GrantFiled: September 7, 2007Date of Patent: August 14, 2012Assignee: Sharp Kabushiki KaishaInventors: Yoshihito Hara, Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Mitsunori Imade, Junya Shimada