Plural Patents (Class 362/613)
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Patent number: 10690838Abstract: A liquid crystal display device and a backlight module are provided. The backlight module includes a frame, a light source, and a light guide plate. The light guide plate includes a light incident surface, a bottom portion and a top portion. The frame includes a lateral plate disposed opposite to the light incident surface. The light source includes a flexible printed circuit and a LED, and the flexible printed circuit includes a vertical portion and a first horizontal portion, wherein the vertical portion is disposed between the lateral plate and the light incident surface, the LED is disposed on a surface of the vertical portion facing the light guide plate, and the first horizontal portion is a part of the vertical portion bending toward the light guide plate. By practice of the disclosure, the narrow border design of the liquid crystal display device could be achieved.Type: GrantFiled: November 23, 2017Date of Patent: June 23, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Mei Han, Gege Zhou
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Patent number: 10670795Abstract: An optical structure, a light guide, and a display device can reduce an influence of diffraction and improve optical performance more than conventionally possible. A reflective pattern (10A) is an optical structure that changes a traveling direction of light and emits the light, the optical structure including: a reflective surface (20) formed of a flat surface and configured to change a traveling direction of light; and a both-end curved surface (30) formed adjacent to the reflective surface (20) and having a surface in a curved shape corresponding to a side surface of a cylinder.Type: GrantFiled: November 24, 2017Date of Patent: June 2, 2020Assignee: Omron CorporationInventors: Masayuki Shinohara, Gouo Kurata, Tsuyoshi Arai, Norikazu Kitamura, Yuto Mori
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Patent number: 10649275Abstract: A display is described. The display includes an array of light sources, collimating optics, a diffuser, a liquid crystal layer and a controller. The array of light sources includes a first group of light sources and a second group of light sources. The collimating optics are arranged to receive and collimate light from the first group of light sources, but not the second group of light sources. The diffuser is arranged to receive and diffuse the collimated light, directed normal to the diffuser, from the collimating optics and light from the second group of light sources. The liquid crystal layer is arranged to receive light from the diffuser and to display an image. The controller is configured to control the array of light sources such that at least some of the light sources emit light.Type: GrantFiled: June 22, 2018Date of Patent: May 12, 2020Assignee: Rockwell Collins, Inc.Inventors: Rick J. Johnson, Albert N. Stuppi
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Patent number: 10651419Abstract: According to some example embodiments of the present invention, a display device includes: a display panel, the display panel being flexible and including an active region for displaying an image, and a peripheral region outside the active region when viewed in a plan view; a window structure on the display panel; a printed circuit board electrically connected to the display panel; a flexible circuit board connecting the display panel to the printed circuit board; and a cover structure adjacent to the window structure, when viewed in the plan view, wherein the cover structure includes: a cover portion overlapped with the flexible circuit board, when viewed in the plan view; and a sidewall portion extending downwardly from the cover portion, and the cover portion has a bottom surface that is coplanar with a bottom surface of the window structure.Type: GrantFiled: April 2, 2018Date of Patent: May 12, 2020Assignee: Samsung Display Co., Ltd.Inventor: Sangwol Lee
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Patent number: 10620364Abstract: A display device includes a backlight module and a display panel. The display panel includes a first display mode to display a first light transmissive pattern and a second display mode to display a second light transmissive pattern. The backlight module includes a first light guide plate having a plurality of first microstructures, a second light guide plate having a plurality of second microstructures, a first light source and a second light source. The first light source is configured to emit a first light beam into the first light guide plate, and the first light beam is emerged from the first light guide plate through the first microstructures. The second light source is configured to emit a second light beam into the second light guide plate, and the second light beam is emerged from the second light guide plate through the second microstructures.Type: GrantFiled: May 31, 2019Date of Patent: April 14, 2020Assignee: Coretronic CorporationInventors: Pei-Ting Huang, Bing-Han Tsai
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Patent number: 10584850Abstract: Films useful as optical reflectors are prepared by coating a sheet of polyethylene terephthalate or other thermoplastic with acrylic polymer, white pigment, and optionally other additives such as impact modifiers, matting agents and UV stabilizers.Type: GrantFiled: June 3, 2013Date of Patent: March 10, 2020Assignee: Arkema FranceInventors: Jiaxin Jason Ge, Mark A. Aubart
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Patent number: 10578792Abstract: A light source module includes a light guide member, a light exiting member, a first collimating light source, and a first light modulating member. The light guide member includes a first surface and a second surface disposed opposite to the first surface, the first surface is configured as a light exiting surface and comprise a light exiting region; the light exiting member is disposed on the first surface in the light exiting region; the first collimating light source is configured to provide a first collimated light; and the first light modulating member is disposed on one of the first surface and the second surface and configured to change a transmission direction of the first collimated light so as to make it incident into the light guide member and make at least part of the first collimated light meet a total reflection condition of the light guide member.Type: GrantFiled: April 16, 2018Date of Patent: March 3, 2020Assignee: BOE Technology Group Co., Ltd.Inventors: Xiandong Meng, Wei Wang, Xiaochuan Chen, Jifeng Tan, Jian Gao, Xianqin Meng
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Patent number: 10578789Abstract: An optical system and method provides at least one, and preferably an array of relatively small, high brightness light sources with a surrounding surface that exhibits brightness, thereby reducing the contrast between the high brightness produced by the light sources and the brightness of their surrounding surfaces. The optical system includes a light waveguide structure that captures a portion of the light from the individual high-brightness light sources, and then re-emits the source light to create brightness in the light sources' surrounding surfaces. The optical system is particularly adapted for use with LEDs, but could be used with LEDs, but could be used with other high brightness light sources.Type: GrantFiled: December 14, 2015Date of Patent: March 3, 2020Assignee: ABL IP Holding, LLCInventor: Peter Y. Y. Ngai
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Patent number: 10578283Abstract: A linear light fixture can include a housing that includes at least one wall that forms a cavity. The linear light fixture can also a light board having multiple light sources disposed thereon, where the light sources are arranged in a linear fashion with respect to each other on the light board, where the light board is disposed within the cavity of the housing. The linear light fixture can further include a lens slidably disposed within a receiving feature of the housing. The linear light fixture can also include a first auxiliary optical member disposed within cavity of the housing, where the first auxiliary optical member includes a first body having a first end and a second end, where the first body includes a light diffusion film. The first auxiliary optical member can fill a first gap between the lens and a first side wall of the housing.Type: GrantFiled: April 25, 2018Date of Patent: March 3, 2020Assignee: Eaton Intelligent Power LimitedInventors: Gregory Howard Parker, II, Timothy Bingaman, Jason Medric Eubanks, John Strom, John Leon
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Patent number: 10557613Abstract: A light guide including a transparent body which is generally elongated in a principal direction with an outer facet forming a diopter with the environment of the body, a first row of inclined facets adapted to reflect the rays in order for them to exit, and at least one second row of reflecting facets of smaller size than the corresponding reflecting facets of the first row. The light reflected by the second row or rows is added to the light beam coming from the first row. The widths of the first row and the second rows can respectively and progressively increase and decrease from the light source so as to compensate the progressive losses of light traveling in the light guide.Type: GrantFiled: February 5, 2016Date of Patent: February 11, 2020Assignee: VALEO VISIONInventors: Antoine De Lamberterie, Christophe Valois
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Patent number: 10527776Abstract: A display device includes a light guide plate, a first light source, a second light source, and a light transmitting portion. The light guide plate includes a first reflecting prism and a second reflecting prism. The first reflecting prism has an inclined surface that reflects the light incident from the first side surface toward the main surface. The second reflecting prism has an inclined surface that reflects the light incident from the second side surface toward the main surface. The longitudinal direction of the inclined surface of the first reflecting prism is parallel or substantially parallel to a line connecting the second light source and the inclined surface of the first reflecting prism.Type: GrantFiled: November 8, 2018Date of Patent: January 7, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazumasa Takata, Wahei Agemizu
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Patent number: 10520153Abstract: A light source module includes: a substrate; and multiple light sources mounted on a first surface of the substrate in a thickness direction of the substrate in a matrix. The light sources include a set of light sources arranged in a row direction and a set of light sources arranged in a column direction. Each of the light sources includes a first electric supply pad and a second electric supply pad. A first electric supply wire extends along the column direction and supplies electricity to each of the first electric supply pads. Second electric supply wires extend in the column direction and supply electricity to each of the second electric supply pads. Portions of light sources arranged in the column direction overlap at least one of the second electric supply wires and first electric supply pads.Type: GrantFiled: February 23, 2018Date of Patent: December 31, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yasuharu Ueno, Yoshihiko Kanayama, Hiroya Tsuji, Tomoyuki Ogata
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Patent number: 10514576Abstract: Image display apparatus includes liquid crystal cell, flat plate-shaped back frame, light guide plate, and a pair of support mechanisms. The pair of support mechanisms are fixed to back frame in positions at which light guide plate is clamped at both sides that intersect a first axis (X-axis). The pair of support mechanisms each includes movable component that supports light guide plate, body component that movably retains movable component, and elastic member that pushes movable component toward opposite support mechanism. Protrusion is disposed on movable component, and engagement section with which protrusion engages is disposed on light guide plate. Engagement section includes tab that is formed outwardly on an end surface of light guide plate, and notch disposed on tab and engages with protrusion.Type: GrantFiled: March 23, 2018Date of Patent: December 24, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shigeru Aruga, Masashi Imai, Yoshitoshi Ooki
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Patent number: 10466410Abstract: A backlight device is disclosed. The backlight device includes a reflection sheet; a frame in contact with the reflection sheet; and a light guiding plate surrounded by the frame; wherein the frame comprises: a first surface in contact with the reflection sheet, a second surface spaced apart from the reflection sheet, at least one groove configured to secure a light emitting element, and a heat dissipation channel in at least one of the first surface and the second surface of the frame, wherein the heat dissipation channel is located at periphery of the groove.Type: GrantFiled: October 30, 2015Date of Patent: November 5, 2019Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Jiang Chen, Chao Dai
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Patent number: 10466538Abstract: A display device according to one aspect of the present invention includes a first substrate including a pixel portion and a terminal portion, a second substrate arranged to face the pixel portion, a first light source device arranged in the terminal portion, and irradiating a first end surface of the second substrate with first light, a liquid crystal layer arranged between the first substrate and the second substrate, and a semiconductor element arranged on a side opposite to a side of the pixel portion across the first light source device, and electrically coupled with the terminal portion, wherein the first light is propagated while reflected between the first substrate and the second substrate, and the liquid crystal layer modulates the propagated first light.Type: GrantFiled: March 9, 2017Date of Patent: November 5, 2019Assignee: Japan Display Inc.Inventors: Hiroki Sugiyama, Kentaro Okuyama, Hideki Kaneko, Hiroshi Inamura, Manabu Mizuno
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Patent number: 10437088Abstract: Disclosed is a backlight module. The backlight module includes: a light source flexible printed circuit; a light-emitting diode disposed on the light source flexible printed circuit; a reflector plate disposed on the light-emitting diode; a sealant frame and a light guide plate that are respectively disposed at two opposite sides of the light-emitting diode; an optical film disposed on the light guide plate; and an upper graphite sheet disposed on the reflector plate. The backlight module has a simple structure, can increase utilization efficiency of light, and has a good heat dissipation effect.Type: GrantFiled: December 27, 2016Date of Patent: October 8, 2019Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jie Zeng
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Patent number: 10359176Abstract: A light generating member includes a light source which generates a first light, a light conversion member which converts the first light into a second light, a bottom portion which includes long sides facing each other and short sides which are connected to ends of the long sides and face each other, first sidewall portions which are connected to the long sides, extend in a direction crossing a plane of the bottom portion and face each other, and second sidewall portions which are connected to the first sidewall portions and face each other, where the light source is disposed between the bottom portion and the first sidewall portions, the light conversion member is disposed between the second sidewall portions, and the long sides have a predetermined curvature.Type: GrantFiled: December 2, 2016Date of Patent: July 23, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hanmoe Cha, Donghyeon Lee, Seokhyun Nam
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Patent number: 10358099Abstract: An exterior trim for a motor vehicle has a body that forms a surface of the exterior trim. The body has an exterior surface and an interior surface, and defines a recess or cut-out. The body has a single undulating wall formed on the interior surface of the body substantially perpendicular to a plane defined by the body, and the single undulating wall at least partially surrounds the recess or cut-out. The exterior trim also includes a human-machine interface (HMI) device disposed at least partially within the recess or cut-out of the body. The HMI device may be used to externally control certain features of the motor vehicle.Type: GrantFiled: September 21, 2017Date of Patent: July 23, 2019Assignee: DURA AUTOMOTIVE HOLDINGS U.K., LTD.Inventors: Jochen Schulze zur Wiesche, Axel Nüsken, Jan Stegemann
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Patent number: 10345503Abstract: A display device includes a light guide plate, and light sources allowing light to be incident on a first side surface and a second side surface of the light guide plate. First incidental side surface light from the first light source is reflected to an upper surface side by first reflection parts formed on a bottom surface to display a first pattern, and second incidental side surface light from the second light source is reflected to the upper surface side by second reflection parts formed on the bottom surface to display a second pattern. Slopes are provided at parts of the first side surface and the second side surface of the light guide plate, and light reflected on a facing reflection surface and propagating in the light guide plate again is reduced by the slopes.Type: GrantFiled: October 11, 2017Date of Patent: July 9, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazumasa Takata, Kenji Takamoto, Wahei Agemizu
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Patent number: 10338296Abstract: A display apparatus includes: a light guide plate; a light source that causes light to be incident on an end surface of the light guide plate; a hiding plate that is provided on a side of an emission surface of the light guide plate, and that includes a light transmission part which transmits light emitted from the emission surface and a light shielding part which has lower light transmittance than the light transmission part; and a colored board that has light reflectance closer to light reflectance of the light shielding part than light reflectance of the light transmission part in each wavelength, and that is provided on a side of a reflection surface of the light guide plate so as to overlap the light transmission part of the hiding plate when viewed from a direction perpendicular to the emission surface of the light guide plate.Type: GrantFiled: February 7, 2018Date of Patent: July 2, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kazumasa Takata, Wahei Agemizu, Kenji Takamoto
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Patent number: 10302841Abstract: A substrate with a textured surface is disclosed. The substrate may be, for example, a light emitter comprising a light guide, for example a backlight element for use in a display device, wherein a surface of the light guide, for example a glass substrate, is configured to have a textured surface with a predetermined RMS roughness and a predetermined correlation length of the texture. A plurality of light scatter suppressing features can be provided on the textured surface. Textured surfaces disclosed herein may be effective to reduce electrostatic charging of the substrate surface. Methods of producing the textured surface are also disclosed.Type: GrantFiled: October 24, 2017Date of Patent: May 28, 2019Assignee: CORNING INCORPORATEDInventors: Daniel Aloysius Nolan, Vasudha Ravichandran, Ioannis Georgios Roudas, Christine Coulter Wolcott
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Patent number: 10281767Abstract: A display apparatus includes a backlight unit comprising a light source emitting blue light, a green color conversion material and a red color conversion material, a first polarizer disposed on the backlight unit, a first base substrate disposed on the first polarizer, a thin film transistor disposed on the first base substrate, a second polarizer disposed on the thin film transistor, a first color conversion pattern and a second color conversion pattern disposed on the second polarizer, a first color filter disposed on the first color conversion pattern, a second color filter disposed on the second color conversion pattern, a second base substrate disposed on the first and second color filters, and a third polarizer disposed on the second base substrate and having a polarizing axis same as a polarizing axis of the second polarizer.Type: GrantFiled: November 27, 2017Date of Patent: May 7, 2019Assignee: Samsung Display Co., Ltd.Inventors: Seon-Tae Yoon, Junghyun Kwon, Kisoo Park, Haeil Park, Moonjung Baek
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Patent number: 10253948Abstract: Lighting system including: two edge-lit lightguide panels; three visible-light sources; and total internal reflection lens or bowl reflector. Each edge-lit lightguide panel is extended along longitudinal axis, has pair of mutually-opposing panel surfaces, and has peripheral edge extended along and spaced transversely away from longitudinal axis. Panel surfaces include first and second light output interfaces. Two visible-light sources located along panel peripheral edges for directing light into panels. Lens or reflector has reflective side surface and central axis transverse to longitudinal axis for directing light to third light output interface located between the others. Output interfaces cooperatively define emission aperture forming shielding zone for redirecting combined light emissions.Type: GrantFiled: March 27, 2018Date of Patent: April 9, 2019Assignee: ECOSENSE LIGHTING, INC.Inventor: Paul Pickard
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Patent number: 10242647Abstract: A data segmenter is configured to determine indices using numbers of most significant bits (MSBs) of fractional values of floating-point representations of component values of an input color that are selected based on exponent values of the floating-point representations. The component values are defined according to a source gamut. The data segmenter is also configured to determine offsets associated with the indices using subsets of the fractional values. An interpolator configured to map the input color to an output color defined according to a destination gamut based on a location in a three-dimensional (3-D) look up table (LUT) indicated by the indices and offsets.Type: GrantFiled: February 24, 2017Date of Patent: March 26, 2019Assignee: ATI Technologies ULCInventor: Yuxin Chen
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Patent number: 10203535Abstract: The present disclosure discloses a mosaic screen. The mosaic screen comprises a box body, a backlight module and a plurality of display modules spliced with each other. The box body comprises four side walls and one box bottom. The plurality of display modules and the box bottom are oppositely fixed on the box body. The backlight module comprises a plurality of lamp panels arranged on the four side walls. Each of the lamp panels comprises: a baseplate, a light source fixing plate, and a light source fixed on the light source fixing plate. The light source fixing plate is connected with a first side of the baseplate close to the display modules, and forms an included angle with the baseplate.Type: GrantFiled: March 10, 2016Date of Patent: February 12, 2019Assignee: Boe Technology Group Co., Ltd.Inventors: Yang Fan, She Lin, Xin Wang
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Patent number: 10197834Abstract: The present disclosure provides a curved-surface backlight source and a display device comprising the curved-surface backlight source. The curved-surface backlight source comprises: a frame, an optical film and a plurality of light source assemblies; the light source assemblies are disposed on the frame, the optical film is disposed on light emergent sides of the light source assemblies, and the light source assemblies and the optical film are in a curved shape.Type: GrantFiled: May 23, 2016Date of Patent: February 5, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qing Liu, Zhongbao Wu, Zezhou Yang
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Patent number: 10180229Abstract: Provided is a lighting unit for a vehicle capable of implementing surface light emission from a single light emitting surface. The light unit can function to implement a light emitting region in which at least two light colors are displayed or different light colors are implemented, or to locally emitting light.Type: GrantFiled: December 17, 2013Date of Patent: January 15, 2019Assignee: LG INNOTEK CO., LTD.Inventors: Kyoung Soo Ahn, Jeong Oh Lee
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Patent number: 10168466Abstract: A corner cut liquid crystal display (LCD) device including a LCD panel and a backlight. The LCD panel includes adjacent panel portions of different width that collectively define a corner cut profile shape for the LCD panel. The backlight includes a light guide and light sources that emit light into the light guide. The backlight directs the light from the light sources toward the LCD panel. The light guide includes adjacent light guide portions of different width that define the corner cut profile shape. Each light guide portion illuminates a corresponding LCD panel portion. The LCD device can be incorporated into a head-mounted display (HMD). The corner cut profile shapes of two adjacent LCD devices, one for the left eye and one for the right eye, may define an open region for placement of other components or parts of the user, such as the user's nose when wearing the HMD.Type: GrantFiled: January 23, 2017Date of Patent: January 1, 2019Assignee: Facebook Technologies, LLCInventors: Evan M. Richards, Shizhe Shen, Jianru Shi
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Patent number: 10172236Abstract: The embodiment of the present invention discloses a narrow frame display panel, comprising: an integrated circuit input pad, being located on a lower side of the display panel and comprising a plurality of input terminals; a flexible printed circuit bonding pad, being located on a lower edge of the display panel and below the integrated circuit input pad, and the flexible printed circuit bonding pad comprising a plurality of bonding terminals, and bonding terminals of at least one end of the flexible printed circuit bonding pad are first bonding terminals, wherein each of the first bonding terminals comprising at least one three-side bracketing structure extending outward in a horizontal direction; wires, electrically connecting the integrated circuit input pad with the flexible printed circuit bonding pad. The embodiment of the present invention further discloses a display. By utilizing the present invention, being advantageous for narrow frame design is achieved.Type: GrantFiled: May 9, 2017Date of Patent: January 1, 2019Assignee: Wuhan China Star Optoelectronics Technology Co., LtdInventor: Qingcheng Zuo
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Patent number: 10168039Abstract: A badge is provided herein. The badge includes a viewable portion having indicia thereon. A plurality of first LED sources is configured to emit light toward the viewable portion. A light guide extends between the viewable portion and the first LED sources. A plurality of second LED sources is configured to emit light toward the viewable portion. The first LED sources illuminate a first region of the viewable portion and the second LED sources illuminate a second region of the viewable portion.Type: GrantFiled: October 6, 2015Date of Patent: January 1, 2019Assignee: Ford Global Technologies, LLCInventors: Paul Kenneth Dellock, Stuart C. Salter, Joseph Myszka, Mandeep Singh Sidhu, Daniel Zilinskas
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Patent number: 10162204Abstract: The present disclosure proposes a display. The display includes a first display panel, a second display panel, and a connecting mechanism, connecting the first display panel and the second display panel, for adjusting relative positions of the first display panel and the second display panel. By means of the connecting mechanism, relative positions of the first display panel and the second display panel are adjustable. Therefore, the display can be applied to a plurality of scenarios and saves material cost.Type: GrantFiled: April 25, 2016Date of Patent: December 25, 2018Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Yong Fan, Yu-chun Hsiao
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Patent number: 10157896Abstract: A display apparatus includes a substrate and a plurality of LEDs. Each LED is attached to the substrate via conductive pads on a side of the LED. A diffuser having light diffusing characteristics is aligned with the plurality LEDs against a surface of the substrate. The diffuser is aligned so as to nest around at least one LED of the plurality of LEDs.Type: GrantFiled: April 4, 2017Date of Patent: December 18, 2018Assignee: Rohinni, LLCInventors: Cody Peterson, Andrew Huska, Monica Hansen, Clinton Adams
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Patent number: 10053004Abstract: A lighting system for a vehicle comprises a headlamp light source. A trim piece is mounted adjacent the light source having an inner surface illuminated by light from the light source and an outer surface visible from outside the vehicle. The trim piece comprises a light transmitting plastic body, wherein a signature image is formed on the body having a foreground region and a background region. The foreground region has a corresponding surface characteristic on the inner and outer surfaces within the foreground region different from a corresponding surface characteristic on the inner and outer surfaces within the background region so that more light from the light source is transmitted through the foreground region than through the background region. The outer surface may be fully metalized to provide a pleasing appearance under ambient light conditions.Type: GrantFiled: November 25, 2014Date of Patent: August 21, 2018Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: David A. Brown, Arun Kumar
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Patent number: 10024524Abstract: The present invention relates to an easy-maintaining LED lamp comprising a lamp body, on which is disposed a mounting frame, wherein the mounting frame comprises two supporting frames, which are respectively connected to the corresponding two ends of the lamp body, wherein a mounting plate is disposed at the upper end of the mounting frame, wherein a plurality of locking holes is disposed on the mounting plate, wherein at least two joint holes are disposed at intervals on the supporting frame, wherein a locking piece extending toward the inner side is disposed in the joint hole, wherein two cover plates are respectively disposed at the two ends of the lamp body, wherein a plurality of fasteners, which is connected to the corresponding locking piece, is disposed at the outer side of one cover plate.Type: GrantFiled: November 4, 2016Date of Patent: July 17, 2018Assignee: Shenzhen OKT Lighting Co., Ltd.Inventor: Zhiwu Zhang
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Patent number: 9958592Abstract: A display device has a first display panel including an image display area in which an image is displayable, a light guide plate arranged at a back of the first display panel, the light guide plate comprising a transparent material, a plurality of light sources respectively facing a plurality of positions on side surfaces of the light guide plate, a second display panel arranged at a back of the light guide plate, the second display panel being configured to display an image viewable through the light guide plate and the first display panel, and a controller configured to control turning on and turning off of the plurality of light sources and to control a first image displayed on the first display panel and a second image displayed on the second display panel. The light guide plate includes an emission surface facing the first display panel.Type: GrantFiled: April 15, 2016Date of Patent: May 1, 2018Assignee: OMRON CorporationInventors: Junya Fujita, Jun Kishimoto, Yuji Hirose
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Patent number: 9933131Abstract: In one aspect, a device has a controller and a fascia assembly, with a fascia, and a printed circuit board (PCB) mounted to the fascia. The PCB has a plurality of holes, and a plurality of light emitting diodes (LEDs), wherein one LED is mounted adjacent to each hole. The device also includes a wiring harness coupling the controller to the PCB wherein the LEDs may be energized according to signals received from the controller; and a console adjacent the PCB. The console has a plurality of light reflecting cups arranged therein so that each light reflecting cup covers an LED and the adjacent hole to reflect light from the LEDs through the holes so that the light is visible through the fascia assembly.Type: GrantFiled: March 2, 2016Date of Patent: April 3, 2018Assignee: Whirlpool CorporationInventors: Matthew P. Ebrom, Eric J. Schuh, Sithaarth T. Subramaniyam, Sugosh Venkataraman, Shivayogi Annigeri, Michael E. Gatt, Ajay Ram Narayana Pillai, Mihir Ponkshe
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Patent number: 9910202Abstract: The present invention relates to a structure of an edge-type back light unit, particularly to a structure comprising a light source receiving part, which receives a light source such as LED formed to the central direction of an optical plate at one side or the other side of the optical plate. The present invention has excellent optical property and has an effect of wide application to various LCDs because it comprises a light source receiving part, which can install a printed circuit board mounting the light source such as LED to an embedded form in an edge-type back light unit.Type: GrantFiled: December 30, 2011Date of Patent: March 6, 2018Assignee: LG INNOTEK CO., LTD.Inventors: Kyoung Soo Ahn, Sang Jun Park, Jae Hyuk Jang, Jong Sun Kim, Jeong Oh Lee
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Patent number: 9904136Abstract: A multiple-pane insulating glazing unit may include multiple panes of transparent material and a layer of electrically controllable optically active material that provides controllable privacy for the glazing unit. Despite efforts to fully black out the multiple-pane insulating glazing unit by switching the optically active material from a transmissive state to a privacy state, the glazing unit may exhibit some residual direct visible transmission. In some examples, the multiple-pane insulating glazing unit may include a light emitting element positioned to direct light at the layer of optically active material to address this issue. Light emitted by the light emitting element may reflect and mask residual visibility through the electrically controllable optically active material.Type: GrantFiled: March 25, 2015Date of Patent: February 27, 2018Assignee: Cardinal CG CompanyInventors: Keith James Burrows, Klaus Hartig
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Patent number: 9881531Abstract: A lighting device for operation in at least two operating modes: a mode for free viewing and a mode for restricted viewing. The device includes a backlighting system, which in the restricted-viewing mode radiates light in a restricted angular range, a plate-shaped optical element situated along a viewing direction in front of the backlighting system, and illuminants laterally arranged at the optical element. The optical element is configured as a light guide consisting of a matrix plastic and, homogeneously distributed therein, scattering particles of a polymer. The light guide is transparent to at least 80% of the light emitted by the backlighting system. The light laterally incident on the optical element from the illuminants is radiated in a free viewing range; in the restricted-viewing mode, the backlighting system is switched on and the illuminants switched off; in the free-viewing mode, the illuminants are on and the backlighting system is off.Type: GrantFiled: February 13, 2015Date of Patent: January 30, 2018Assignee: SIOPTICA GMBHInventors: Markus Klippstein, Juergen Schwarz
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Patent number: 9864123Abstract: A backlight unit includes a light guide plate including a first surface and a second surface, opposite to the first surface, having a recess formed toward the first surface, and a light emitting device array disposed in the recess, the light emitting device array including a plurality of light emitting device packages and a board, on which the light emitting device packages are disposed. The light emitting device packages include first light emitting device packages to emit first light in the recess in a first direction, second light emitting device packages to emit second light in the recess in a second direction opposite to the first direction, and third light emitting device packages to emit third light having light output different from at least one of the first light and/or the second light in the recess in a third direction intersecting the first and second directions.Type: GrantFiled: April 18, 2012Date of Patent: January 9, 2018Assignee: LG INNOTEK CO., LTD.Inventor: Jungki Choi
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Patent number: 9848471Abstract: A backlight unit includes a main light-emitting diode (“LED”) array, a sub LED array, an LED driver which individually controls an on-off operation of the main LED array and an on-off operation of the sub LED array and includes a first switch, a second switch, a third switch, a fourth switch, a sub switch control unit, and a main switch control unit, and a direct current (“DC”)/DC converter unit which receives an input voltage and provides a DC voltage to the LED driver where the sub switch control unit controls the first and third switches so that one of the first and third switches is turned on and the other is turned off, and the main switch control unit controls the second and fourth switches so that one of the second and fourth switches is turned on and the other is turned off.Type: GrantFiled: July 6, 2016Date of Patent: December 19, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-won Jang, Seung-wan Kim
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Patent number: 9841645Abstract: A display device includes a display panel, a circuit board, a light guide structure and two paste materials. The circuit board is disposed on the display panel. The light guide structure is disposed on the display panel. The light guide structure has a bottom surface and a peripheral surface, wherein the bottom surface is oriented toward the display panel and the peripheral surface is adjacent to the bottom surface. Two plating pads are formed on the bottom surface. Two first recesses are formed on the peripheral surface and corresponding to the two plating pads. The two paste materials are formed between the two plating pads and the circuit board.Type: GrantFiled: April 2, 2015Date of Patent: December 12, 2017Assignee: Himax Display, Inc.Inventor: Shu-Chuan Chan
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Patent number: 9817181Abstract: The present invention proposes a backlight module includes an LCD and a backlight module. A QD film adheres to a light guide plate. An optical film is arranged on the QD film. A light source is arranged at a lateral side of the light guide plate. A bezel accommodates the light guide plate and the light source. The bezel includes a base board and a sideboard extending along a direction perpendicular to the base board. The lateral frame encloses the bezel. The lateral frame includes a standing board and a horizontal extensive object. The standing board adheres to an outer side of the sideboard. The horizontal extensive object presses the QD film on the LGP and separates the optical film from the QD film, which prevents the edges of the QD film from getting distorted easily and having blue circles.Type: GrantFiled: September 21, 2015Date of Patent: November 14, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Yong Fan
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Patent number: 9817176Abstract: A display device includes a backlight assembly and a display panel which displays an image. The backlight assembly includes a light emitting unit which generates light, and an optical member which adjusts a path of the light incident thereto and outputs the light toward the display panel. The optical member includes a first base film to which the light is incident, a second base film closer to the display panel than the first base film and for which are defined first and second areas alternately disposed, a first optical pattern between the first and second base films at the first area, where the first optical pattern refracts therein the light incident to the first base film, and a second optical pattern between the first and second base films at the second area, where the second optical pattern scatters the light incident to the first base film.Type: GrantFiled: December 28, 2015Date of Patent: November 14, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joonghyun Kim, Juyoun Son, Kang-Woo Lee, Seunghwan Chung
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Patent number: 9817279Abstract: The present invention relates to a display device, comprising: a display unit comprising a pixel layer; a backlight unit; and a modulation unit disposed between the display unit and the backlight unit, wherein the modulation unit comprises a plurality of conductive layers and a liquid crystal layer disposed between the plurality of conductive layers, and the liquid crystal layer comprises a polymer dispersed liquid crystal (PDLC) or a polymer stabilized liquid crystal (PSLC).Type: GrantFiled: February 11, 2015Date of Patent: November 14, 2017Assignee: INNOLUX CORPORATIONInventors: Yu-Wei Chen, Meng-Chieh Chang, Chia-Liang Hung
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Patent number: 9715140Abstract: A liquid crystal display apparatus includes a liquid crystal panel configured to display images; at least one light source configured to supply light to the liquid crystal panel; a front chassis member and a rear chassis member configured to accommodate the liquid crystal panel and the light source module and a circuit board configured to control the liquid crystal display apparatus. The rear chassis member may include a light source supporting portion supporting the at least one light source and a plurality of side surface portions extending from the light source supporting portion to the rear chassis member. The circuit board may be disposed in at least one of the side surface portions.Type: GrantFiled: October 16, 2014Date of Patent: July 25, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kye-hoon Lee, Jin Liu, Won-yong Lee, Suk-ju Choi
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Patent number: 9709244Abstract: A light-source module includes an optical film and at least one light-source unit, which together enclose a space. The light-source unit includes a reflective assembly, a light-concentrating unit and at least one light-emitting assembly. The light-concentrating unit has a light exiting end and a light incidence end, and the light exiting end faces the space enclosed by the light-source unit and the optical film. The optical-axis direction of the light-emitting assembly is defined as a first direction, and the direction perpendicular to both the first direction and the optical film is defined as a second direction. The length of the light-concentrating unit in the first direction is defined as a light-concentrating distance, the width of the light exiting end in the second direction is defined as a light exiting width, and the ratio of the light-concentrating distance over the light exiting width is greater than 0.5 but less than 10.Type: GrantFiled: July 21, 2014Date of Patent: July 18, 2017Assignee: Young Lighting Technology Inc.Inventors: Hung-Wei Liu, Chin-Ku Liu
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Patent number: 9638854Abstract: The embodiment of the present invention relates to the field of display technology, and provides a backlight source, a liquid crystal display panel and a liquid crystal display device. The backlight source comprises at least two light guide plates and a light source corresponding to the respective light guide plate. The light guide plates are joined to form a light guide plane, and the light source is arranged at the periphery of the corresponding light guide plate and does not transmit light to the other light guide plate. The light source corresponding to the respective light guide plate can be controlled by a control circuit. According to the present invention, it is able to reduce the power consumption of the screen and the backlight source and improve the endurance of the backlight source.Type: GrantFiled: September 17, 2014Date of Patent: May 2, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jiuxia Yang, Feng Bai, Yiming Zhao, Bing Bai, Xiao Sun
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Patent number: 9632236Abstract: The invention provides a backlight module including: a light guiding plate having a first side surface and a second side surface; a plurality of light sources arranged along the second side surface of the light guiding plate; a quantum dot enhancement film (QDEF) disposed above the light guiding plate, wherein the QDEF includes a first edge adjacent to the first side surface and a second edge adjacent to the second side surface; and a frame disposed outside the light guiding plate, the frame having a first extension portion covering the first edge of the QDEF and a second extension portion covering the second edge of the QDEF, wherein a distance between an end of the first extending portion and the first edge of the QDEF is greater than a distance between an end of the second extension portion and the second edge of the QDEF.Type: GrantFiled: October 26, 2016Date of Patent: April 25, 2017Assignee: INNOLUX CORPORATIONInventors: Mei-Fan Chou, Tun-Chuan Chen, Chun-Wei Liu
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Patent number: 9618179Abstract: The invention provides a lighting unit (10) comprising (i) an arrangement (111) of a plurality of light source units (100) configured to provide corresponding light source unit light (101), (ii) a first foil (210) comprising a plurality of transmissive first foil regions (211), wherein each first foil region (211) comprises a plurality of optical elements (212), and (iii) a second foil (220) comprising a plurality of transmissive second foil regions (220), wherein each second foil region (221) comprises a plurality of optical elements (222), wherein each light source unit (100) has a corresponding first foil region (211) configured downstream of said light source unit (100) and a corresponding second foil region (221) configured downstream of said first foil region (211).Type: GrantFiled: October 13, 2014Date of Patent: April 11, 2017Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Wilhelmus Petrus Adrianus Johannus Michiels, Marcellinus Petrus Carolus Michael Krijn, Ruslan Akhmedovich Sepkhanov, Antonius Adrianus Maria Marinus, Hendrikus Hubertus Petrus Gommans