Patents Examined by Dung Nguyen
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Patent number: 9559485Abstract: A dual wavelength pumping system and method have been developed to improve the efficiency of laser systems operating in the raid infrared region has been developed, in a conventional system the ions are excited from a ground state to an upper lasing state using a light pump. They then undergo a laser transition to leave the ion in a long lived post lasing excited state from which it eventually decays back to the ground state. In contrast they present system uses a first light pump to pump ions from the ground state to the post lasing state, and a second light pump to pump ions from the post lasing state to the upper lasing state. This system thus exploits the long lifetime of the post lasing state to enable it to become a virtual ground state for the second laser allowing continued cycling of ions between the upper lasing state and the post lasing state. A system using an Erbium, doped fiber generated a 3.5 ?m laser output with an average power of over 250 mW and an initial slope, efficiency of 25.Type: GrantFiled: May 2, 2014Date of Patent: January 31, 2017Assignee: Adelaide Research & Innovation Pty Ltd.Inventors: Ori Henderson Sapir, Jesper Munch, David Ottaway
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Patent number: 9557610Abstract: Provided is a display device capable of preventing a liquid crystal from being left outside a microcavity. The display device includes: a substrate; a pixel electrode formed on the substrate; a roof layer formed on the pixel electrode so as to be spaced apart from the pixel electrode with a plurality of microcavities therebetween; a light blocking member positioned between two microcavities of the plurality of microcavities, overlapping with a first edge of one microcavity of the two microcavities, and not overlapping with a second edge of the other microcavity; an injection hole exposing a part of the microcavity; a liquid crystal layer filling the microcavity; and an encapsulation layer formed on the roof layer so as to cover the injection hole to seal the microcavity.Type: GrantFiled: August 14, 2014Date of Patent: January 31, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Si Kwang Kim, Tae Gyun Kim, Hyoung Sub Lee, Woo Yong Sung, Tae Woon Cha, Sang Gun Choi
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Patent number: 9557570Abstract: A display device includes a display panel and a liquid crystal lens panel. The liquid crystal lens panel includes a first substrate and a second substrate that face each other; a first electrode layer disposed on the first substrate; a second electrode layer disposed on the second substrate; and a liquid crystal layer interposed between the first substrate and the second substrate. The first electrode layer includes a plurality of first linear electrodes and a plurality of second linear electrodes, the liquid crystal layer includes first liquid crystal molecules adjacent to the first linear electrode that are pre-tilted in a first direction, and second liquid crystal molecules adjacent to the second linear electrodes that are pre-tilted in a second direction opposite the first direction.Type: GrantFiled: April 15, 2014Date of Patent: January 31, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung Jun Jeong, Kyung Ho Jung
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Patent number: 9553424Abstract: A broad area semiconductor diode laser device includes a multimode high reflector facet, a partial reflector facet spaced from said multimode high reflector facet, and a flared current injection region extending and widening between the multimode high reflector facet and the partial reflector facet, wherein the ratio of a partial reflector facet width to a high reflector facet width is n:1, where n>1. The broad area semiconductor laser device is a flared laser oscillator waveguide delivering improved beam brightness and beam parameter product over conventional straight waveguide configurations.Type: GrantFiled: September 16, 2015Date of Patent: January 24, 2017Assignee: nLIGHT, Inc.Inventor: Manoj Kanskar
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Patent number: 9551900Abstract: A method and a controller for operating an array of variable optical retarders are disclosed. Neighboring pixels of the array of variable optical retarders are driven with disordered temporal bit sequences. An optical beam illuminating the pixels tends to integrate time-domain modulation caused by individual pixels driven in a non-coordinated or disordered fashion, which reduces the overall time-domain modulation amplitude of the optical beam.Type: GrantFiled: July 2, 2013Date of Patent: January 24, 2017Assignee: Lumentum Operations LLCInventors: Josh P. Kemp, Sheldon McLaughlin, Thomas Friessnegg
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Patent number: 9553419Abstract: The present invention provides improved laser beam quality with fewer parts than the current method demands and decreasing the transmit aperture, said apparatus comprising: two or more independently pumped gain modules, two or more pump diodes, a polarizing waveplate, non-linear optical crystals, and a passive Q-switch.Type: GrantFiled: August 17, 2015Date of Patent: January 24, 2017Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: John C McCarthy
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Patent number: 9547191Abstract: A liquid crystal display according to an embodiment includes a first light-emitting device that emits short-wavelength light of a wavelength 360 nm to 420 nm and a second light-emitting device that emits visible light. Electrodes of the liquid crystal display includes a light-guiding electrode that drives a liquid crystal contained in the liquid crystal layer to emit the short-wavelength light and a pixel electrode that drives the liquid crystal contained in the liquid crystal layer to emit the visible light. The photoreceptors are each a phototransistor including a transparent channel layer containing two metallic oxides or more from gallium, indium, zinc, hafnium, tin, and yttrium. The photoreceptors include a first photoreceptor overlaps with the blue filter in the plan view and a second photoreceptor overlaps with the green filter, the red filter, or the black matrix in the plan view.Type: GrantFiled: June 2, 2014Date of Patent: January 17, 2017Assignee: TOPPAN PRINTING CO., LTD.Inventors: Yasuhiro Hibayashi, Koichi Minato, Kenzo Fukuyoshi, Manabu Ito
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Patent number: 9547201Abstract: A display apparatus includes a first substrate and a color filter layer. The first substrate has a curved first side and a display area. The first side has at least a curvature radius and the range of the curvature radius is between 500 mm and 10000 mm. At least a datum line is defined in the display area. The color filter layer is disposed on the first substrate and includes a plurality of filter portions. The filter portions are disposed within the display area. An included angle between the datum line and the first side is between 0° and 10°, and the filter portions located corresponding to the datum line have the same color.Type: GrantFiled: August 6, 2014Date of Patent: January 17, 2017Assignee: Innolux CorporationInventors: Chao-Chun Chung, Chih-Yung Hsieh
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Patent number: 9547124Abstract: Concatenated distributed feedback lasers having novel waveguides are disclosed. The waveguides allow for coupling of the laser beam between active and passive waveguide structures and improved device design and output efficiency. Methods of making along with methods of using such devices are also disclosed.Type: GrantFiled: March 13, 2013Date of Patent: January 17, 2017Assignee: Thorlabs Quantum Electronics, Inc.Inventors: Catherine Genevieve Caneau, Feng Xie, Chung-En Zah
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Patent number: 9548582Abstract: Provided are a pulse width stretcher and a chirped pulse amplifier including the same. The pulse width stretcher includes first and second multiple reflection mirrors, and a pulse group-delay dispersion block disposed between the first and second multiple reflection mirrors and configured to refract a pulse laser beam to stretch a pulse width of the pulse laser beam.Type: GrantFiled: November 24, 2015Date of Patent: January 17, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong Hoon Song, Moon Youn Jung
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Patent number: 9543733Abstract: There is provided a photonic bandgap fiber used in a state in which at least a part of the photonic bandgap fiber is bent at radii of 15 cm or greater and 25 cm or less. A large number of high refractive index portions 57 are disposed in a nineteen-cell core type in three layers, and a V value is 1.5 or greater and 1.63 or less. In the high refractive index portions 57, conditions are defined that a relative refractive index difference is ?% and a lattice constant is ? ?m so as to remove light in a higher mode at the bent portion as described above.Type: GrantFiled: September 11, 2015Date of Patent: January 10, 2017Assignees: FUJIKURA LTD., NATIONAL UNIVERSITY CORP. HOKKAIDO UNIVERSITYInventors: Masahiro Kashiwagi, Kunimasa Saitoh
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Patent number: 9541796Abstract: A pixel array substrate with new pixel design and a liquid crystal display panel with the pixel array substrate are provided. The pixel array substrate includes a plurality of data lines, a plurality of scan lines and a plurality of pixels. Each of the pixels comprises a first electrode, a first connecting line, a second electrode and a second connecting line. The first electrode is electrically connected with corresponding data line and scan line through the first connecting line, and having a slit. The second pixel is electrically connected with corresponding data line and scan line through the second connecting line. At least a part of the second connecting line is exposed by the slit of the first electrode.Type: GrantFiled: September 30, 2013Date of Patent: January 10, 2017Assignee: AU OPTRONICS CORPORATIONInventors: Ming-Huei Wu, Kun-Cheng Tien, Shin-Mei Gong, Jen-Yang Chung, Wei-Chun Wei, Chien-Huang Liao
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Patent number: 9535209Abstract: The present disclosure provides a backlight source and a display apparatus. It relates to the field of display technology and solves the problem of poor display quality of the display apparatus. The backlight source comprises: a light guide plate; a light shielding tape arranged at a peripheral edge of a light emitting face of the light guide plate; a buffer layer arranged on the light shielding tape, wherein the buffer layer is provided with at least one lightening hole and/or at least one marking hole representing product information of the backlight source. The above backlight source may reduce the weight of the buffer layer by providing the lightening hole and/or marking hole on the buffer layer, so as to reduce the pressure of the buffer layer to the light shielding tape. In this way, the deformation in the light shielding tape 1 is reduced so as to improve display quality of the display apparatus.Type: GrantFiled: June 18, 2015Date of Patent: January 3, 2017Assignees: BOE Technology Group Co., Ltd., BOE Optical Science and Technology Co., Ltd.Inventor: Wenjun Li
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Patent number: 9531151Abstract: Method for generating a series of laser pulses with a laser assembly, the laser assembly at least having two reflecting members, a laser medium and an electro-optical modulator are disclosed. The laser assembly operates in a light amplifying mode and runs a pulse extraction sequence. The pulse extraction sequence is run by applying a defined voltage change with reference to the amplification voltage, wherein changing of the voltage is adjusted such that at least one intermediate switching state is generated on side of the electro-optical modulator, the intermediate switching state providing a particular change of polarization of the amplified laser radiation by the electro-optical modulator, such that a final switching state is generated on side of the electro-optical modulator by applying a final extraction voltage at the end of the time period.Type: GrantFiled: November 3, 2015Date of Patent: December 27, 2016Assignee: HIGH Q LASER GMBHInventors: Dominik Fuchs, Michael Schmidt, Hubert Adamietz, Juerg Aus Der Au
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Patent number: 9525266Abstract: A laser source device includes a laser source element configured to emit a laser beam, an optical element disposed downstream of the laser source element, and a return-light-receiving surface at a position shifted in a direction intersecting an active layer of the laser source element. The optical element is tilted with respect to an optical axis of the laser beam so that a return light in a form of a laser beam reflected by the optical element is incident on the return-light-receiving surface.Type: GrantFiled: February 19, 2016Date of Patent: December 20, 2016Assignee: MITUTOYO CORPORATIONInventor: Kaoru Miyata
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Patent number: 9525269Abstract: In various embodiments, wavelength beam combining laser systems incorporate etalons to establish external lasing cavities and/or to combine multiple input beams into a single output beam.Type: GrantFiled: November 20, 2015Date of Patent: December 20, 2016Assignee: TERADIODE, INC.Inventors: Bien Chann, James Burgess, Wang Zhou, Bryan Lochman, Francisco Villarreal-Saucedo
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Patent number: 9525268Abstract: A quantum cascade laser includes a substrate having a principal surface including first and second regions arranged along a first axis; a laser structure disposed on the principal surface in the second region, the laser structure having an end facet intersecting the first axis, the laser structure including a stripe-shaped stacked semiconductor layer extending along the first axis; and a distributed Bragg reflection structure disposed on the principal surface in the first region, the distributed Bragg reflection structure including a semiconductor wall made of a single semiconductor material, the distributed Bragg reflection structure being optically coupled to the end facet of the laser structure. The semiconductor wall has first and second side surfaces that intersect the first axis and extend along a second axis intersecting the principal surface. The semiconductor wall is located away from the end facet of the laser structure.Type: GrantFiled: September 25, 2015Date of Patent: December 20, 2016Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Jun-ichi Hashimoto
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Patent number: 9519171Abstract: An electronic device includes: a backlight holding case 8 accommodating a light guide plate 7; a design frame 3 which includes a flange part 3a protruding inward from a peripheral edge of a frame opening, and a design panel part 3b protruding outward therefrom, and which is attached to an opening of a backlight holding case 8 to sandwich the plate 7 between the flange part 3a and backlight holding case 8; a protective-plate-attached liquid crystal display panel 2 in which a protective plate 2a is mounted on a display surface, and which the outer peripheral part of the protective plate 2a is fixed to the panel part 3b, and the back side is illuminated with light from the light source guided by the plate 7; and a rear side case 4 assembled to the design frame 3 fixed by the panel 2 through the panel part 3b.Type: GrantFiled: April 18, 2012Date of Patent: December 13, 2016Assignee: Mitsubishi Electric CorporationInventors: Takao Kuroki, Rei Tsukahara
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Patent number: 9519170Abstract: A narrow bezel structure of a liquid crystal display is disclosed. The bezel structure includes a middle frame having a side wall and a horizontal wall connecting to the side wall. The side wall includes a front sidewall and a rear sidewall defines by the horizontal wall. A liquid crystal module of the LCD is fixed on the horizontal wall. The edge of the liquid crystal module corresponds to an internal side of the front sidewall. The rear sidewall is assembled with a back frame of the LCD, and a backlight module of the LCD is fixed on the back frame. In addition, the LCD incorporates the above narrow bezel structure is also disclosed. With the simple bezel structure, not only the front frame of the middle frame is prevented from bending outward, but also a plurality of industrial designs can be achieved.Type: GrantFiled: June 24, 2013Date of Patent: December 13, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Guofu Tang, Dehua Li
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Patent number: 9513500Abstract: A fixing device for an LCD module and a faceplate includes a frame having one side fixing an LCD module and another side provided with plural fixing plates respectively bored with an elongated insert hole. A circuit board is secured at a rear side of a faceplate and provided with plural locking plates corresponding with the fixing plates so that the fixing plates of the frame can be respectively secured with the locking plates. Thus, relative positions of an LCD module and a faceplate can be adjusted and hence LCD modules different in thickness can be firmly fixed with a faceplate and the surface of the LCD module can be stably kept flush with the surface of the faceplate.Type: GrantFiled: April 13, 2015Date of Patent: December 6, 2016Assignee: CHYNG HONG ELECTRONICS CO., LTD.Inventor: Mu-Chun Lin