Patents Examined by Dennis Y Kim
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Patent number: 8842248Abstract: A display device includes a pixel group having first to fourth pixels in a 2×2 matrix, wherein the areas of the first and second pixels is greater than the areas of the third and fourth pixels, so that, when a storage bridge which connects storage electrodes is formed between the first and second pixels, an opening area through which light is transmitted in each of the first and second pixels has the same area as the opening areas in each of the third and fourth pixels.Type: GrantFiled: October 12, 2010Date of Patent: September 23, 2014Assignee: Samsung Display Co., Ltd.Inventors: Ji-Sun Kim, Dong-Gyu Kim, Seong-Young Lee
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Patent number: 8842241Abstract: A light reflective film is produced by (a) forming an antistatic layer having a surface energy of at least 30 mN/m on a resin film, (b) applying a curable liquid crystal composition onto the surface of the opposite side, (c) drying the applied curable liquid crystal composition to be in a state of a cholesteric liquid crystal phase, (d) promoting the curing reaction to form a light reflective layer, and (e) repeating at least once the process of from (b) to (d).Type: GrantFiled: July 21, 2011Date of Patent: September 23, 2014Assignee: Fujifilm CorporationInventors: Kazuhiro Oki, Takao Taguchi
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Patent number: 8842239Abstract: A light-guide apparatus for accompanying an edge light source to form a backlight module for an LCD display includes an upper light-distributing layer, a middle light-guiding layer and a lower reflective layer. The light-guiding layer further defines a light-introducing surface for allowing lights emitted from the edge light source to enter the light-guiding layer. The reflective layer reflects the lights back to the light-guiding layer. A light-exiting surface for allowing at least a portion of the lights to leave the light-guiding layer is defined on the top surface of the light-distributing layer and is perpendicular to the light-introducing surface. The light-distributing layer, the light-guiding layer and the reflective layer are manufactured integrally into a unique piece by a co-extrusion process so as to avoid possible existence of air spacing in between. Three-dimensional micro-structures are constructed on a reflective surface interfacing the reflective layer and the light-guiding layer.Type: GrantFiled: July 20, 2011Date of Patent: September 23, 2014Assignee: Entire Technology Co., Ltd.Inventors: Jia-Jen Chen, Yu-Chun Tao, Yan Zuo Chen, Hao-Xiang Lin, Cheng-Yu Hsieh
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Patent number: 8842228Abstract: An LCD with an integrated touch panel that prevents sensor malfunction by eliminating coupling noises includes an insulating substrate, a plurality of gate lines formed on the insulating substrate so as to extend in a first direction, a plurality of data lines formed in a second direction so as to intersect the plurality of gate lines, a plurality of thin film transistors (TFTs), each formed at an area defined by the gate lines and the data lines, a plurality of sensor lines formed in the same directions as the gate lines and the data lines, and a plurality of dummy lines formed in the same directions as the sensor lines.Type: GrantFiled: July 1, 2013Date of Patent: September 23, 2014Assignee: Samsung Display Co., Ltd.Inventor: Seung-hwan Moon
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Patent number: 8842254Abstract: A liquid crystal display panel is provided and includes a first substrate and a second substrate disposed to face each other with a liquid crystal layer held therebetween. The first substrate has peripheral circuit wires formed in a peripheral area surrounding a display area, and the second substrate is disposed to face the first substrate so that the peripheral circuit wires of the first substrate are exposed. A resin layer having a predetermined width is formed on that end part of the second substrate on the side of facing the first substrate which is located on the side of the peripheral circuit wires of the first substrate.Type: GrantFiled: December 17, 2010Date of Patent: September 23, 2014Assignee: Japan Display West Inc.Inventor: Hideki Kaneko
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Patent number: 8830423Abstract: A method of making a liquid crystal device is provided, the method comprising (i) providing a cell containing a mixture of a liquid crystal and pre-polymer (ii) applying a stimulus to arrange the liquid crystal in a first predetermined state and (iii) subsequent to, or contemporaneously with, step (ii), causing the pre-polymer to form polymer when the liquid crystal is in a second predetermined state, wherein steps (ii) and (iii) are performed a plurality of times.Type: GrantFiled: November 27, 2008Date of Patent: September 9, 2014Assignee: Merck Patent GmbHInventors: Bo-Ru Yang, Steve Elston, Peter Raynes, Han-Ping Shieh
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Patent number: 8823897Abstract: The present invention discloses a liquid crystal module, which includes a back panel, a circuit board, and a circuit board cover. The circuit board is attached to the back panel by magnetic members. The circuit board cover is attached to the back panel by magnetic members. In addition, the invention discloses a fixing structure and a display device that includes the liquid crystal module. The display device, the liquid crystal module, and the fixing structure thereof disclosed in the present invention use magnetic members to fix the circuit board and the circuit board cover to the back panel. This simplifies the assembling operation, allows of easy maintenance and replacement of the circuit board, makes it possible to efficiently remove the circuit board cover for conducting flaw inspection and related electrical test on the circuit board, improves the production efficiency of liquid crystal display devices, and lowers down the manufacturing cost.Type: GrantFiled: January 30, 2012Date of Patent: September 2, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Hung-Lung Hou
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Patent number: 8780318Abstract: A patterned phase retardation film is disclosed, which includes substrate, a phase retardation layer on the substrate comprising a plurality of first regions of liquid crystal materials and a plurality of second regions of curable resin, wherein the first regions and the second regions are in a grating stripe structure which is parallel and interleaved with each other the top part of the second regions is formed with at least one inclined plane; and a planarization layer for planarizing the phase retardation layer; wherein the first regions provide a first phase retardation and second regions provide a second phase retardation, the first phase retardation and the second phase retardation have a phase difference of 180°. The method for manufacturing the patterned phase retardation film is also disclosed.Type: GrantFiled: May 21, 2012Date of Patent: July 15, 2014Assignee: BenQ Materials CorporationInventors: Lung-Hai Wu, Chen-Kuan Kuo, Fung-Hsu Wu, Cyun-Tai Hong, Chih-Haw Wang
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Patent number: 8730415Abstract: A cover glass integrated sensor has an excellent visibility of sharp outlines of the display screen as seen through the cover glass and has a sense of unity in appearance in portions surrounding the display screen. The cover glass integrated sensor includes a cover glass and a capacitance type film sensor. The cover glass includes a glass substrate and a first frame-like light-blocking layer made of a screen printing film formed on peripheral portion on the rear surface of the glass substrate. The capacitance type film sensor has a second frame-like light-blocking layer made of an exposure/development product of color resist material formed on a periphery of the front surface. The capacitance type film sensor is attached to a rear surface of the cover glass. An inner edge of the second frame-like light-blocking layer is closer to the center than an inner edge of the first frame-like light-blocking layer.Type: GrantFiled: December 19, 2011Date of Patent: May 20, 2014Assignee: Nissha Printing Co., Ltd.Inventors: Ryomei Omote, Takao Hashimoto
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Patent number: 8724041Abstract: An improved drive scheme for a segmented polarizing modulator (or Polarization Control Panel) for use in an electronic stereoscopic display. The segmented polarization modulator segments are arranged contiguously in a direction of the sequential scan. The liquid crystal material used in each segment is driven in a manner to reduce the visibility of segment boundaries, by applying a positive or negative transition voltage (+T or ?T volts) for a short period of time prior to applying +H and ?H drive voltages. Optionally, the transition voltage may also be applied in transitioning from +H and ?H drive voltages.Type: GrantFiled: May 16, 2012Date of Patent: May 13, 2014Assignee: RealD Inc.Inventors: Douglas J. McKnight, Michael G. Robinson
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Patent number: 8704990Abstract: An electro-optical display apparatus includes a display area in which sub-pixel columns formed of sub-pixels of the same color that are linearly arranged in a single direction are disposed in a stripe arrangement together with sub-pixel columns of other colors. An aperture ratio of each sub-pixel in at least one sub-pixel column located at one edge of the display area in an arrangement direction of the sub-pixel columns and at least one sub-pixel column located at another edge of the display area in the arrangement direction of the sub-pixel columns are configured to be lower than those of sub-pixels of the same color located in a center portion of the display area.Type: GrantFiled: March 1, 2011Date of Patent: April 22, 2014Assignee: Japan Display West Inc.Inventors: Shuhei Yoshida, Keiji Takizawa
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Patent number: 8704968Abstract: A liquid crystal display (LCD) includes an outer cover, a backlight module, a liquid crystal panel, and a bezel. The backlight module includes a reflection sheet, a light guide plate (LGP), an edge reflector, and a light source. The reflection sheet is disposed on the outer cover and faces the outer cover. There is an interval between the outer cover and the reflection sheet. The LGP is stacked on the reflection sheet and the edge reflector is disposed on the outer cover, wherein a containing space is defined by the outer cover and the edge reflector. The light source is disposed in the containing space. The liquid crystal panel is stacked on the LGP. The bezel is assembled to the outer cover. The outer cover and the bezel enclose the backlight module and the liquid crystal panel and the bezel exposes the liquid crystal panel.Type: GrantFiled: August 6, 2010Date of Patent: April 22, 2014Assignee: Coretronic CorporationInventor: Yin-Jen Lin
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Patent number: 8704973Abstract: Provided are an optical sheet, a backlight unit and an LCD device having the same. The backlight unit includes a first layer, a second layer, and a refractive pattern. The first layer has a larger refractivity than an air layer, and the second layer has a larger refractivity than the first layer. The refractive pattern is disposed at a boundary surface between the first layer and the second layer and has ridges and furrows that change a traveling path of light. The optical sheet refracts light at least three times to condense the light in a direction perpendicular to a light-exiting surface.Type: GrantFiled: December 31, 2007Date of Patent: April 22, 2014Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Jae Hyun Park
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Patent number: 8698996Abstract: The present disclosure relates to a flexible substrate for a display device including a plastic layer containing a woven glass fiber, a metal film coated on either both side surfaces or one surface of the plastic layer, and an overcoating layer formed on one surface of the metal film wherein the overcoating layer is on the side of the metal film opposite from the plastic layer, and to a display device using the flexible substrate. The flexible substrate is thin, and has small thermal expansion coefficient, excellent flexibility, heat resistance, gas permeability resistance and moisture blocking property. The flexible substrate can be used in various display devices such as a TV, a notebook computer, a cellular phone, or an electronic paper.Type: GrantFiled: January 9, 2008Date of Patent: April 15, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Jin Park, Mi Jeong Song, Kwang Hee Lee
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Patent number: 8692966Abstract: Provided is a liquid crystal display device including: a first substrate; a second substrate; a liquid crystal layer sandwiched between the first and the second substrates; a first polarization plate placed on a side of the first substrate; a second polarization plate placed on a side of the second substrate; and a pixel electrode and a common electrode which are provided on the side of the second substrate on which the liquid crystal layer is placed, in which: at least one of the pixel electrode and the common electrode is interdigital; and the liquid crystal layer has flexoelectric coefficients e11 and e33, both absolute values of which are +7 pC/m or less. Accordingly, a flicker intensity in an IPS liquid crystal display device is suppressed to such a degree as not to influence display quality.Type: GrantFiled: May 24, 2010Date of Patent: April 8, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shinichiro Oka, Shinichi Komura, Hirotaka Imayama, Takeshi Sato, Osamu Itou
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Patent number: 8687155Abstract: According to one embodiment, a liquid crystal display device includes a first insulative substrate, a second insulative substrate, a first polarizer disposed on an outer surface side of the first insulative substrate, a second polarizer disposed on an outer surface side of the second insulative substrate, and a first retardation plate and a second retardation plate, which are stacked between the second insulative substrate and the second polarizer. When a retardation in the thickness direction, which is defined by ((nx+ny)/2?nz)*d, is Rth, the first retardation plate has a negative first retardation Rth1, the second retardation plate has a positive second retardation Rth2, and a contribution degree of the second retardation Rth2, which is defined by |Rth2|*100/(|Rth1|+|Rth2|), is 40%±3%.Type: GrantFiled: July 19, 2011Date of Patent: April 1, 2014Assignee: Japan Display Inc.Inventors: Takashi Mitsumoto, Junichi Kobayashi, Kazuhiro Joten
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Patent number: 8681303Abstract: A liquid crystal display device comprises a plurality of pixels arrayed in a first direction and a second direction, each of the pixels having a reflective area in at least a portion thereof. The reflective area comprises a surface-irregularity film that is a film having a plurality of surface irregularities, a light reflecting film disposed as an upper layer over the surface-irregularity film, and an electrode group disposed as an upper layer over the light reflecting film. The electrode group in each of the pixels that are arrayed in at least the first direction comprises at least two types of electrode patterns having different layouts.Type: GrantFiled: January 2, 2013Date of Patent: March 25, 2014Assignee: NLT Technologies, Ltd.Inventors: Shinya Niioka, Ken Sumiyoshi
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Patent number: 8665384Abstract: A coated article includes a low-E coating supported by a substrate (e.g., glass substrate), the low-E coating including first and second IR reflecting layers comprising silver and/or gold, and at least one UV blocking layer that blocks significant amounts of UV light having a wavelength of from 380-400 nm so that no more than about 20% of light having a wavelength of from 380-400 passes through the low-E coating. The UV blocking layer may be positioned so as to not directly contact the first and second IR reflecting layers.Type: GrantFiled: May 17, 2012Date of Patent: March 4, 2014Assignee: Guardian Industries Corp.Inventor: Vijayen S. Veerasamy
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Patent number: 8654290Abstract: A liquid crystal display device (1) includes a first substrate (2), a second substrate (3) provided to face the first substrate (2), a liquid crystal layer (4) sandwiched between the first substrate (2) and the second substrate (3), a first polarizing plate (5) and a second polarizing plate (6) respectively provided on a side of the first substrate (2) and a side of the second substrate (3) which are opposed to sides to which the liquid crystal layer (4) is provided, and a common electrode (7) and a pixel electrode (9) provided to the liquid crystal layer (4) side of the first substrate (2). Alignment of liquid crystal molecules (4a) of the liquid crystal layer (4) is controlled by an electric field generated between the common electrode (7) and the pixel electrode (9). A polarizing layer (13) is provided on the liquid crystal layer (4) side of the second substrate (3) so as to be in contact with the liquid crystal layer (4).Type: GrantFiled: February 12, 2010Date of Patent: February 18, 2014Assignee: Sharp Kabushiki KaishaInventors: Masanobu Mizusaki, Tadashi Ohtake, Takashi Katayama, Masako Nakamura
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Patent number: 8643822Abstract: A method of fabricating an optical element including a liquid crystal layer having a spatially-varying tilt angle includes coating a substrate with a linearly photopolymerizable polymer layer, irradiating the linearly photopolymerizable polymer layer with linearly polarized ultra-violet light at a oblique angle, and coating a layer of liquid crystal material on a surface of the irradiated linearly photopolymerizable polymer layer. The liquid crystal material has a predetermined relationship between its tilt angle and a total dose of the linearly polarized ultra-violet light. The linearly photopolymerizable polymer layer is irradiated with at least one dose of linearly polarized ultra-violet light that is sufficient to induce formation of a plurality of discrete regions within the liquid crystal layer having a larger in-plane birefringence than an adjacent or surrounding region.Type: GrantFiled: August 6, 2010Date of Patent: February 4, 2014Assignee: JDS Uniphase CorporationInventors: Kim Leong Tan, David M. Shemo