Particular Application Patents (Class 362/602)
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Patent number: 8540410Abstract: A submerged planar illumination device for providing specified, substantially uniform distribution of light in liquid from one or few light sources such as LED. The device comprises a light guiding plate having an entrance edge to which the LEDs are fixed, a collimator for redirecting the light and forming substrate light which is coupled to a light guiding plate having at least one light extracting surface. Light extracting surface are optionally on both large surfaces of the light guiding plate. Each light extracting surface is covered with a pattern of light extracting and scattering elements capable of collecting, scattering and extracting light propagating in the light guiding plate into the liquid ambient medium in which the device is submerged. A cover, sealed to the entrance edge of the light guiding plate, protects the light emitting element from the liquid ambient medium.Type: GrantFiled: May 11, 2010Date of Patent: September 24, 2013Inventors: Leon Eisen, Jacob Stern, Abraham Rotem, Yoav Evron
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Publication number: 20130242600Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the display layers in the display. The display layers may include a layer of liquid crystal material interposed between a color filter layer and a thin-film transistor layer. The backlight structures may include a light guide plate. A plurality of light-emitting diodes mounted on a flexible printed circuit may be coupled to an edge of the light guide plate. The flexible printed circuit may be curled into a spring element to bias the light-emitting diodes against the edge of the light guide plate. A plurality of gaps may be formed in the flexible printed circuit and may be used to separate and mechanically decouple adjacent light-emitting diodes. Individual light-emitting diodes may independently register to the light guide plate to maximize optical efficiency in the display.Type: ApplicationFiled: March 15, 2012Publication date: September 19, 2013Inventors: Jeremy C. Franklin, Derek Wright, Wenyong Zhu
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Publication number: 20130242601Abstract: A backlit system comprises a base panel, a plurality of keys disposed on the base panel, a substantially planar light guide panel disposed between the base panel and the plurality of keys, at least one light source disposed on the light guide panel, and at least one light management feature disposed on the light guide panel. The at least one light management feature is configured to at least partially reflect incident light within the light guide panel.Type: ApplicationFiled: March 13, 2013Publication date: September 19, 2013Applicant: LUMITEX, INC.Inventors: Gregg M. Kloeppel, David Larson, Peter Broer
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Patent number: 8534893Abstract: A flat panel light source (100) for a transillumination device of a microscope comprises a plate-shaped light guide (110) having a lower and an upper boundary surface, and at least one lateral surface (113 to 116), and having at least one light-emitting means (120, 122) arranged to radiate light into the light guide (110) from at least two different directions, via at least one lateral surface serving as a light entrance surface, such that the light propagates in the light guide (110) as a result of total reflection, the total reflection being disrupted in defined fashion, by an element (140) abutting against a contact surface at the lower boundary surface of the light guide (110), so that an outcoupling of light occurs on the upper boundary surface of the light guide (110), the planar area of the contact surface being smaller than the planar area of the lower boundary surface.Type: GrantFiled: January 26, 2012Date of Patent: September 17, 2013Assignee: Leica Microsystems (Schweiz) AGInventors: Robert Paulus, Reto Züst, Harald Schnitzler
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Publication number: 20130235613Abstract: In a light guide plate and a display apparatus having the light guide plate, a light guide plate includes reflective prisms, in which at least one of the reflective prisms includes an inclined angle adjustable according to an inclined surface of a defective portion thereof and compensates for a distortion of light caused by the defective portion.Type: ApplicationFiled: August 31, 2012Publication date: September 12, 2013Applicant: Samsung Display Co., Ltd.Inventors: BYOUNGHO CHEONG, Oleg Prudnikov, Guk Hyun Kim, Hyundeok Im
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Publication number: 20130235612Abstract: The invention provides an LCD device. The LCD device includes a frame. The frame is internally provided with a lightbar, an LGP, and a reflecting surface. A long and narrow reflecting cavity is formed between the lightbar, the reflecting surface, and the LGP, and the frame is provided with heat dissipating holes which are communicated with the outside of the LCD device in the corresponding positions of both ends of the reflecting cavity. In the invention, the frame at the open parts of both ends of the reflecting cavity is provided with heat dissipating holes, thereby forming a “chimney effect”, namely hot air rapidly rises and then is discharged from the top holes, and cold air is rapidly supplemented from the bottom holes. Thus, heat convection is accelerated, thereby improving heat dissipation effect.Type: ApplicationFiled: April 27, 2012Publication date: September 12, 2013Inventor: Guofu Tang
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Publication number: 20130235611Abstract: An electronic device may have a display with backlight structures. The backlight structures may produce backlight that passes through the display layers in the display. The backlight structures may include a light guide plate that distributes light across the display layers. A light source such as a light-emitting diode light source may be used to provide light to the light guide plate. The light source may overlap an edge portion of the light guide plate. A light guide structure having a bend may be coupled between the light source and the light guide plate. The light guide structure may be used to guide the light from the light source to the light guide plate via total internal reflection. A light guide structure may be provided with light leakage promotion structures to evenly distribute light from a centralized light source along the edge of a light guide plate.Type: ApplicationFiled: March 9, 2012Publication date: September 12, 2013Inventors: Jeremy C. Franklin, Derek Wright, Jun Qi
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Patent number: 8529112Abstract: A light guiding bar includes first and second light incident portions, a light exit portion and a reflecting portion. The first and second light incident portions are at opposite ends of the light guiding bar and receive light. The light exit portion extends in a first direction, and partially totally reflects and partially emits the light according to an incident angle. The reflecting portion extends in the first direction, is adjacent to the light exit portion and includes a plurality of reflecting surfaces. Each of the reflecting surfaces has a wedge shape and reflects the light in a direction inclined with respect to a second direction substantially perpendicular to the first direction. The light incident into the first and second light incident portions and directly on the light exit portion is totally reflected by the light exit portion.Type: GrantFiled: September 21, 2011Date of Patent: September 10, 2013Assignee: Samsung Display Co., Ltd.Inventors: Young-Chan Kim, Hwan-Young Choi, Moon-Gyu Lee, Byoung-Ho Cheong
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Patent number: 8529109Abstract: A vehicle lighting unit which emits light parallel to an optical axis in a front direction can include a light source which emits light obliquely to an optical axis in the front direction and a light guiding body which guides the light emitted from the light source so as to emit the light. The light guiding body can include an incidence surface disposed to face the light source with a gap in between, the incidence surface through which the light emitted from the light source enters the light guiding body, a front surface having an exit surface and a first reflection surface, and a back surface having a second reflection surface.Type: GrantFiled: May 23, 2011Date of Patent: September 10, 2013Assignee: Stanley Electric Co., Ltd.Inventor: Masafumi Ohno
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Patent number: 8529111Abstract: A notebook computer having dual display screens includes a backlight module, a first liquid crystal panel, a second liquid crystal panel, a first protective layer, a second protective layer, and a frame. The backlight module is constituted of a light guide plate and a plurality of light guide sources. The first liquid crystal panel is adhered to one side of the backlight module for displaying images of a picture. The second liquid crystal panel is adhered to the other side of the backlight module for displaying a picture identical to or different from that of the first liquid crystal panel. The picture of the second liquid crystal panel is displayed in a direction reverse to that of the first liquid crystal panel. The first protective layer is adhered to one side of the first liquid crystal panel. The second protective layer is adhered to one side of the second liquid panel.Type: GrantFiled: January 19, 2010Date of Patent: September 10, 2013Inventor: Nai-Chien Chang
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Publication number: 20130229824Abstract: The present invention relates to a light-diffusing ink composition and to a light guide panel and display unit using same, wherein the light-diffusing ink composition comprises: an ink binder made of one or more selected from a group consisting of acrylic resin and polyvinyl chloride (PVC) copolymer; polymethylmethacrylate (PMMA) particles for forming a crystal optical pattern; and a solvent for ink. According to the present invention, light from a light source is converted into a crystal optical pattern and outputted, thus producing aesthetic and sensuous light, and lighting with an aesthetic design can be achieved by means of the light guide panel using the composition.Type: ApplicationFiled: November 10, 2011Publication date: September 5, 2013Applicant: KSCB CO., LTD.Inventors: Sung-Don Jeoung, Sang-Soo Kang
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Publication number: 20130223093Abstract: A light-concentrative illuminating keyboard contains a keyboard set and at least one illuminating set. The keyboard set includes plural pressing members depressible to move based on a pressing direction, plural resilient supporting members disposed relative to the pressing members to allow the pressing members to move reciprocately along the pressing direction, and a circuit board to be triggered to generate an instruction signal while the pressing members presses the resilient supporting members individually. The circuit board includes at least one reflecting region at least relative to the resilient supporting member. The illuminating set is disposed in a light guiding space between the pressing members and the circuit board to generate light. The light is transmitted in the light guiding space and reflected by the reflecting region of the circuit board to guide into the pressing member through the resilient supporting member to provide high illumination.Type: ApplicationFiled: February 28, 2012Publication date: August 29, 2013Inventor: Chin-Wen CHOU
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Publication number: 20130222736Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the liquid crystal display. A reflector may be used to enhance backlight efficiency. The electronic device may have a housing in which the display is mounted. The housing may be formed from an opaque material such as metal. An opening may be formed in the housing. Transparent housing structures such as a transparent logo structure may be mounted in the opening of the housing. During operation, a light source may produce light that passes through the transparent logo structure. A light guide structure may be used to guide light from the light source to the transparent logo structure. The reflector may be formed from a coating of metal on the light guide structure. Light from the light source may be used to form the backlight for the backlight structures.Type: ApplicationFiled: February 28, 2012Publication date: August 29, 2013Inventors: Jun Qi, Victor H. Yin
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Publication number: 20130215638Abstract: Electronic devices may include assemblies of structures such as electronic device assemblies connected using light-cured liquid adhesive such as ultraviolet-light-cured adhesive. Light guide structures may be mounted in the assemblies. During manufacture of an electronic device, ultraviolet light may be injected into a light guide structure to cure the light-cured liquid adhesive. A light guide structure may include portions that prevent escape of ultraviolet light and portions that allow ultraviolet light to escape into the light-cured liquid adhesive. Light guide structures may include masked portions, rigid support members, and one or more openings. Openings in a light guide structure may allow the light-cured liquid adhesive to be injected into an assembly through the openings. An adhesive applicator may be used to apply the adhesive to portions of the assembly. An external light source may be used to inject light that cures the adhesive into the light guide structures.Type: ApplicationFiled: February 21, 2012Publication date: August 22, 2013Inventors: Teodor Dabov, Casey J. Feinstein, David A. Pakula, Stephen Brian Lynch
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Publication number: 20130208499Abstract: An illuminated keyboard providing high and uniform luminosity includes a keyboard portion and at least one light guide element. The keyboard portion includes a plurality of key units and a substrate to hold the key units. The key units are arranged in parallel rows each having multiple key units to form a key unit assembly. The key unit assembly is spaced from the substrate to form a vertical projection space, and any two neighboring key unit assemblies form a horizontal mounting space. The light guide element includes a light guide portion located in the horizontal mounting space and two light projecting portions located in the vertical projection space. Each light projecting portion has at least one transparent zone to project light transmitted by the light guide portion into the vertical projection space to provide uniform luminosity for the key unit assembly.Type: ApplicationFiled: February 13, 2012Publication date: August 15, 2013Inventors: Chin-Wen CHOU, Chin-Hsiu Hwa, Yu-Chun Huang
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Publication number: 20130201718Abstract: A portable electronic apparatus includes a display panel, an outer casing, a backlight module disposed between the display panel and the outer casing, and an outer frame disposed on the display panel for fixing the display panel and the backlight module with the outer casing. A frame structure is formed on the outer casing and has a pillar and a slot. The backlight module includes a light guide plate, plural light emitting units disposed at a side of the light guide plate, and a cover member. The cover member is disposed on the outer casing corresponding to the light emitting units and has a bending hook portion and a holding board portion for holding the display panel. The holding board portion has a hole for engaging with the pillar when the bending hook portion hooks the slot, so that the cover member can cover the light emitting units.Type: ApplicationFiled: April 26, 2012Publication date: August 8, 2013Inventor: Ying-Pu Lin
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Publication number: 20130201717Abstract: This disclosure provides systems, methods and apparatus for illumination. In one aspect, a lampshade includes a light source coupled to a tapered light guide sheet. The light guide sheet extends laterally and is curved around a vertical axis. The light source injects light into the wide end of the tapered light guide sheet and the tapered sidewalls of the light guide sheet allow the light to escape out of the light guide sheet and in the general direction of the narrow end of the tapered light guide sheet, thereby allowing the lampshade to act as an up-light or down-light, depending on the direction that the narrow end is pointing. The lampshade may include light extracting and turning features and/or a reflector configured to eject light laterally outward from the light guide sheet, thereby allowing the lampshade to illuminate objects on the same plane as the lampshade.Type: ApplicationFiled: February 8, 2012Publication date: August 8, 2013Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.Inventor: Robert L. Holman
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Patent number: 8480280Abstract: A luminescent display has a plurality of individual discreet phosphor elements (33) on a glass plate separated from one another, filler material (45) between the phosphor elements and reflective film over the individual phosphor elements (33). The filler material (45) can be white and contact the sides of the phosphor elements (33). The filler material (45) can have a peak height that is at least half of the height of the individual phosphor elements (33) between which the filler material (45) lies.Type: GrantFiled: June 28, 2006Date of Patent: July 9, 2013Assignee: Thomson LicensingInventor: James Kleppinger
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Publication number: 20130169694Abstract: A display apparatus including a backlight module and a transmissive display panel is provided. The backlight module includes a light guide plate, a patterned light scattering structure, and a light emitting device. The light guide plate has a first surface, a second surface opposite to the first surface, and a light incident surface connecting the first surface and the second surface. The patterned light scattering structure is disposed on the light guide plate or inside the light guide plate. The patterned light scattering structure includes a plurality of light scattering strips. The light emitting device is configured to emit an illumination light and the light incident surface is disposed on the path of the illumination light. The light scattering strips are configured to scatter the illumination light. The transmissive display panel is disposed beside the backlight module. The first surface faces the transmissive display panel.Type: ApplicationFiled: May 9, 2012Publication date: July 4, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Fu-Hao Chen, Wu-Li Chen, Wei-Ting Yen, Jian-Chiun Liou, Chao-Hsu Tsai
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Publication number: 20130169900Abstract: Various embodiments provide a display that utilizes a film having a plurality of compliant microdots to non-optically bond a layer of chemically strengthened protective glass to the display. The film, microdots, and chemically strengthened protective glass provide an assembly provides a non-bonded ruggedized, interactive display that is highly functional, safe, and easy to construct.Type: ApplicationFiled: January 2, 2012Publication date: July 4, 2013Applicant: Microsoft CorporationInventor: Rajesh Manohar Dighde
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Publication number: 20130163277Abstract: A display module includes a display panel including a display area and a non-display area, an upper prism layer including a plurality of parallel upper prisms at a lower surface thereof, wherein the plurality of the upper prisms are parallel to one another, a lower prism layer including a plurality of lower prisms at a lower surface thereof, wherein the plurality of the lower prisms are parallel to one another and extend in a substantially perpendicular direction to the upper prisms, and an adhesive part which is at a side of the upper prism layer and is adhered to the lower prism layer and the non-display area of the display panel, wherein the adhesive part fixes the upper prism layer and the lower prism layer to each other.Type: ApplicationFiled: December 4, 2012Publication date: June 27, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: SAMSUNG DISPLAY CO., LTD.
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Patent number: 8469572Abstract: A flat panel light source (100) for a transillumination device of a microscope comprises a plate-shaped light guide (110) having a lower and an upper boundary surface and at least one lateral surface (113 to 116), and at least one light-emitting means (120, 122) arranged to radiate light (130) into the light guide (110) from at least two different directions, via at least one lateral surface serving as a light entrance surface, such that light propagates in the light guide (110) by total reflection, the total reflection being disrupted in defined fashion by an element (140) abutting against a contact surface at the lower boundary surface of the light guide (110) so an outcoupling of light occurs on the upper boundary surface, the planar area of the contact surface being smaller than that of the lower boundary surface, the element (140) producing a directed reflection of the light (130).Type: GrantFiled: January 26, 2012Date of Patent: June 25, 2013Assignee: Leica Microsystems (Schweiz) AGInventors: Robert Paulus, Reto Züst, Harald Schnitzler
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Publication number: 20130155717Abstract: A display apparatus includes a display panel, a backlight unit, a mold frame, a bottom bracket, a top mold, and first and second coupling members. The display panel includes a display surface on which an image is displayed. The backlight unit generates and provides a light to the display panel. The mold frame supports the display panel and the backlight unit. The bottom bracket accommodates the display panel, the backlight unit and the mold frame. The top mold faces the bottom bracket and overlaps a portion of the display panel, and the display panel is between the top mold and the bottom bracket. The first coupling member couples the mold frame with the top mold, and the second coupling member couples the top mold with the bottom bracket.Type: ApplicationFiled: May 15, 2012Publication date: June 20, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Wee Joon JEONG, Byung Jin KIM
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Publication number: 20130147757Abstract: The present invention discloses an input device with multi luminous pattern layers including an input interface, at least one first light emitting element, a first light guiding plate, at least one second light emitting element, a second light guiding plate and a circuit board. The input interface is stacked on the first light guiding plate, and first light guiding plate is stacked on the second light guiding plate. The first light emitting element and the second light emitting element are arranged beside the first light guiding plate and the second light guiding plate, such that the width of the input device with multi luminous pattern layers can be reduced by disposing the first light emitting element and the second light emitting element on one circuit board without another circuit board.Type: ApplicationFiled: February 21, 2012Publication date: June 13, 2013Applicant: PRIMAX ELECTRONICS LTD.Inventor: Chung-Yuan Chen
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Patent number: 8459813Abstract: A light-emitting device of a portable communication terminal improves exterior decoration by emitting light to the exterior of the portable communication terminal and implements a sense of unity of a design in a non-light emission state by integrating a portion to which the light is transmitted with a main body housing. The light-emitting device includes a housing, a light-emitting element for emitting light, a light guide sheet for guiding the light from the light-emitting element, and a light-transmitting portion integrally formed on the housing for transmitting the light from one end of the light guide sheet to an outer side of the housing. A sense of unity of the main body housing and the light-transmitting portion can be improved by applying a non-conductive vacuum metallizing (NCVM) process to the exterior. An aesthetic sense is improved with the sense of unity of the exterior design.Type: GrantFiled: October 22, 2009Date of Patent: June 11, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-Hwa Moon, Joon-Young Lee, Kyoung-Jong Kim, Jin-Woo Kim
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Publication number: 20130141666Abstract: The present invention discloses a back light module and a liquid crystal display (LCD) thereof. The back light module comprises a light guide plate, an optical sheet laid on the light transmission surface of the light guide plate, wherein the edge of the optical sheet is fixed to the light guide plate by a plurality of positioning structures. With application of the positioning structures, because the expansion coefficient of the optical sheet is not nearly to that of the frame but is close to the thermal expansion rate of the light guide plate, after the optical sheet is fixed to the light guide plate, the light guide plate is expanded along with the expansion of the optical sheet when subject to heating, and shrunk along with the shrinking of the optical sheet when the temperature drops.Type: ApplicationFiled: December 7, 2011Publication date: June 6, 2013Inventor: Gang Yu
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Publication number: 20130141935Abstract: A backlight module includes a light guide plate, a light emergent portion, a Fresnel lens portion, and a number of light sources. The light incident portion includes an incident surface for receiving light rays, an emergent surface opposite to the incident surface having an area less than that of the incident surface; and a sloped surface connecting the emergent surface and positioned between the incident surface and the emergent surface. The light emergent portion extends from the light incident portion. The Fresnel lens portion is positioned on the sloped surface for directing the light rays projecting on the sloped surface to the light emergent portion. The light source arranged in front of the incident surface for emitting the light rays to the incident surface.Type: ApplicationFiled: December 27, 2011Publication date: June 6, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: YUNG-LUN HUANG
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Publication number: 20130135892Abstract: A light guide apparatus for an electronic device is described. The light guide apparatus includes a light guide having a first surface and an second surface; a light source, the light guide and the light source being arranged to couple light from the source into the light guide through the second surface of the light guide, the second surface and the light source defining a gap therebetween; and a reflector positioned above the light source and the light guide, and extending over at least a portion of the gap and at least a portion of the front surface of the light guide.Type: ApplicationFiled: November 28, 2011Publication date: May 30, 2013Applicant: RESEARCH IN MOTION LIMITEDInventors: Hsin Chin LEE, Bergen Albert Fletcher, Antanas Matthew BROGA
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Publication number: 20130135893Abstract: The present invention discloses a light bar fixing device, a backlight module and an LCD device. The light bar fixing device of the backlight module comprises a fixing structure for fixing a light guide plate of the backlight module respectively from three spatial dimensions. In the present invention, because the light guide plate is fixed on the light bar fixing device, the fixing device of the light guide plate is saved; moreover, the light guide plate is fixed to the light bar fixing device from three spatial dimensions, so that the omnibearing positioning of the light guide plate is achieved.Type: ApplicationFiled: December 2, 2011Publication date: May 30, 2013Inventor: Yanxue Zhang
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Publication number: 20130135359Abstract: This disclosure provides systems, methods and apparatus for a display device having a front light to provide front illumination to the display element included in the display device and an optical touch screen to provide a touch input to the display device. In one aspect, the display device includes a light source disposed to inject light into a backplate of the display device rearward of the display elements and a light redirector disposed to receive light from the backplate and redirect the received light forward of the display elements for optical touch purpose.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.Inventors: Brian J. Gally, Jonathan Charles Griffiths
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Publication number: 20130135358Abstract: The present disclosure provides systems, methods and apparatus to produce a plurality of virtual light sources and at least partially collimate light. In one aspect, a manifold to collimate light can produce a plurality of virtual light sources used to inject light into a light guide for illuminating a display. The manifold can be formed of optically transmissive material and can have a backside for receiving light from a light source and a front wall, opposite the backside, for outputting light. The front wall can include first and second output portions separated by a non-light emitting area, each of the output portions providing a separate virtual light source. The upper, bottom, and side walls of the manifold can extend along a curve from the backside to the front wall and can be configured to collimate light propagating in directions extending out of the plane of the light guide.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.Inventors: Ye Yin, Russell Wayne Gruhlke
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Patent number: 8449130Abstract: Methods of controlling a backlight unit including a plurality of solid state light emitting devices include receiving a request to set a color point of the backlight unit at a requested color point, and determining if the requested color point is within an acceptable range. In response to the requested color point being outside the acceptable range, a modified color point is selected in response to the requested color point, and a color point of the backlight unit is set at the modified color point. Corresponding solid state lighting units are also disclosed.Type: GrantFiled: March 25, 2010Date of Patent: May 28, 2013Assignee: Cree, Inc.Inventors: John K. Roberts, Keith J. Vadas
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Publication number: 20130128348Abstract: The present invention provides a flat panel display device, which includes a backlight system and a display panel, wherein the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism, the light homogenization mechanism guiding light from the light source to a light incidence surface of the display panel; the back frame includes at least two primary assembling pieces and the at least two primary assembling pieces are connected through joining; the at least two primary assembling pieces includes one primary assembling piece that carries the light source thereon and the primary assembling piece that carries the light source is provided with a heat dissipation fin assembly. The present invention also provides a stereoscopic display device and a plasma display device.Type: ApplicationFiled: November 24, 2011Publication date: May 23, 2013Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Yi-Cheng Kuo, Yu-Chun Hsiao, Chong Huang, Jia-He Cheng, Cheng-Wen Que, Quan Li
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Publication number: 20130128150Abstract: The present invention provides a flat panel display device and a stereoscopic display device. The flat panel display device includes a backlight system and a display panel, wherein the backlight system includes a reflector plate, a light guide plate, and a back frame. The reflector plate and the light guide plate are stacked on the back frame and the back frame carries the light guide plate and the reflector plate. The back frame includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and lifting adhesive spots are formed between the reflector plate and the light guide plate. The flat panel display device and the stereoscopic display device of the present invention has a back frame that has a back frame having a simple structure, saves material for the back frame, and reduces the cost of the back frame so as to lower down the cost of flat panel display device.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Applicant: Shenzhen China Star Optoelectronics Technology Co. LTD.Inventors: Cheng-Wen Que, Yi-Cheng Kuo, Yu-Chun Hsiao
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Publication number: 20130128154Abstract: A flat panel display device includes a backlight system which includes a back frame carrying a light source and a light homogenization mechanism. The back frame includes first and second primary assembling pieces. The first primary assembling piece has an end forming at least two joint sections each having a structure mating an end of the second primary assembling piece to joint primary assembling pieces together. The back frame includes a bracing piece fixed to the primary assembling pieces and forming at least two sets of mounting structures. The present invention also provides a stereoscopic display device and a plasma display device. The present invention has a simple structure, reduces the cost of the back frame mold, and saves the material for the back frame, so as to lower down the cost.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Applicant: Shenzhen China Star Optoelectronics Technology Co. LTD.Inventors: Chong Huang, Cheng-Wen Que, Yu-Chun Hsiao, Yi-Cheng Kuo
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Publication number: 20130128606Abstract: A light-emitting module includes a light source, a printed circuit board (“PCB”) and a light absorption portion. The light source generates and emits a light, and the light source is on a first surface of the PCB. The light absorption portion is on the first surface of the PCB and absorbs the light.Type: ApplicationFiled: May 3, 2012Publication date: May 23, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Seung-Hwan BAEK, Jin SEO, Jae-Sang LEE, Hyung-Jin KIM, Sang-Won LEE
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Publication number: 20130128604Abstract: The present invention provides a flat panel display device, which includes a backlight system and a display panel. The backlight system includes a reflector plate and a back frame that carries the reflector, wherein the back frame includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and the reflector plate includes a substrate layer and a reflection layer formed on the substrate layer, the substrate layer having a surface that is away from the reflection layer and comprises an ink layer printed thereon. The present invention also provides a stereoscopic display device.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Applicant: Shenzhen China Star Optoelectronics Technology Co LtdInventors: Cheng-Wen Que, Yi-Cheng Kuo, Yu-Chun Hsiao
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Publication number: 20130128138Abstract: The present invention provides a flat panel display device, which includes a backlight system and a display panel, wherein: the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism, the light homogenization mechanism guiding light from the light source to a light incidence surface of the display panel; the back frame includes at least first and second primary assembling pieces. The first and second primary assembling pieces have opposite ends both including a joint section. The first and second primary assembling pieces are joined with the corresponding joint sections, wherein the two joint sections of the first primary assembling piece include different positioning marks and each of the joint sections of the second primary assembling piece mating the first primary assembling piece includes a corresponding positioning mark.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Applicant: Shenzhen China Star Optoelectronics Technolog Co., LTD.Inventors: Yi-Cheng Kuo, Yu-Chun Hsiao, Chong Huang, Jia-He Cheng, Cheng-Wen Que, Quan Li
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Publication number: 20130128605Abstract: The present invention provides a flat panel display device. The flat panel display device includes a backlight system and a display panel, wherein: the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism and the back frame includes at least first and second primary assembling pieces, wherein the first primary assembling piece has an end forming at least two joint sections, each of the joint sections having a structure mating an end of the second primary assembling piece, the first primary assembling piece using one of the joint sections to join the corresponding end of the second primary assembling piece. The primary assembling pieces include an elastic member arranged on a portion of an upper surface thereof in a lengthwise direction. The present invention also provides a stereoscopic display device and a plasma display device.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.Inventors: Yi-Cheng Kuo, Yu-Chun Hsiao, Chong Huang, Jia-He Cheng, Cheng-Wen Que, Quan Li, Liu-Yang Yang
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Publication number: 20130121018Abstract: A diffusion sheet includes a light-transmissive substrate, a plurality of structures, and a flat portion. The light-transmissive substrate includes a first main surface, and a second main surface. The plurality of structures have convex shapes and are randomly formed on the first main surface. The flat portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) of no less than 0.9 ?m.Type: ApplicationFiled: July 19, 2012Publication date: May 16, 2013Applicant: Sony CorporationInventors: Jun SASAKI, Akihiro HORII
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Publication number: 20130121017Abstract: A illuminant keyboard device includes a bottom frame having a plurality of latch parts, a plurality of keying units disposed on the bottom frame, a membrane switch interposed between the bottom frame and the keying units, a first light guide plate interposed between the membrane switch and the bottom frame, a least a light source disposed on predetermined position of the first light guide plate, a second light guide plate interposed between the membrane switch and the first light guide plate and a light-shielding plate interposed between the membrane switch and the keying units. The first light guide plate has a plurality of first holes and the second light guide plate has a plurality of second holes, an aperture of the first holes is larger than an aperture of the second holes.Type: ApplicationFiled: November 16, 2011Publication date: May 16, 2013Inventor: Ching-Cheng TSAI
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Patent number: 8441602Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.Type: GrantFiled: July 6, 2012Date of Patent: May 14, 2013Assignee: Pixtronix, Inc.Inventors: Je Hong Kim, Jignesh Gandhi
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Publication number: 20130114288Abstract: The present disclosure provides a backlight module. The backlight module includes at least one light tube. Each light tube includes a light emitting side for emitting light and a first micro-structure disposed on the light emitting side for breaking total reflections of the light in the light tube. With the first micro-structure disposed on the light emitting side of the light tube, the total reflections of the light in the light tube can be broken to allow the light to be emitted from the light tube evenly. Also, the reflecting structure is disposed on non-light emitting side for improving the using efficiency of the light and reducing the manufacturing cost of the backlight module. Additionally, the fluorescent layer is coated on the light emitting side for improving a color saturation level of a LCD using the backlight module.Type: ApplicationFiled: November 11, 2011Publication date: May 9, 2013Inventors: Yu-chun Hsia, Ruilian Yang
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Publication number: 20130114289Abstract: The present invention relates to a backlight module that enhances heat dissipation of LED light sources and a display device. The backlight module that enhances heat dissipation of LED light sources includes an LED light strip, a back panel, a mixed coating layer including two materials, and a thermal diode/triode. The LED light strip is arranged on the back panel. The mixed coating layer is interposed between the LED light strip and the back panel and contacts both for transfer of heat. The thermal diode/triode is connected to the mixed coating layer to control temperature of the mixed coating layer. In operation, through regulation of temperature, the thermal diode/triode makes vibration frequencies of the two materials of the mixed coating layer consistent with each other at a given temperature. The display device includes the above descried backlight module that enhances heat dissipation of LED light sources.Type: ApplicationFiled: November 14, 2011Publication date: May 9, 2013Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventor: Yajun Yu
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Publication number: 20130114287Abstract: An illuminated keyboard includes plural keys, a membrane switch circuit member and an illumination module. The illumination module is used for emitting plural light beams. When the membrane switch circuit member is triggered by depressing a key, the membrane switch circuit member issues a corresponding key signal. The membrane switch circuit member includes plural light-guiding zones. At least one light-guiding zone of the plural light-guiding zones has a light-guiding structure. The light-guiding structure of the at least one light-guiding zone is not aligned with the corresponding key intersection. Under this circumstance, the light beams from the illumination module are not sheltered by the corresponding key intersections, and thus the light beams can be fully utilized.Type: ApplicationFiled: February 6, 2012Publication date: May 9, 2013Applicant: PRIMAX ELECTRONICS LTD.Inventor: Chung-Yuan Chen
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Publication number: 20130114290Abstract: A display module includes a metal rear bezel, a backlight module, a driver circuit board and a heat dissipation film. The metal rear bezel includes a carrier surface and a back surface opposite to the carrier surface. The backlight module includes a light reflective sheet disposed on the carrier surface. The light reflective sheet includes a light reflective sheet and a heat dissipation surface opposite to the light reflective sheet. The driver circuit board is attached to the back surface of the metal rear bezel. The heat dissipation film is disposed on the heat dissipation surface. At least a portion of the heat dissipation film is overlapped with the driver circuit board.Type: ApplicationFiled: February 22, 2012Publication date: May 9, 2013Applicant: AU OPTRONICS CORP.Inventor: Ping LEE
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Publication number: 20130107566Abstract: The specification and drawing figures describe and show an edge illuminable wayfinder that includes a an illuminable graphic sandwich operatively connectable to a sealed light-emitting diode platform that are enclosed in a housing.Type: ApplicationFiled: October 28, 2011Publication date: May 2, 2013Applicant: Insight Lighting, Inc., a New Mexico corporationInventor: David E. Patterson
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Publication number: 20130107568Abstract: According to one embodiment, an electronic apparatus includes a housing, a panel, and a light source. The panel includes a display screen. The housing includes a first wall and a second wall. The first wall includes an opening exposing the display screen. The second wall is opposite to the first wall. Light from the light source reaches the panel through the second wall.Type: ApplicationFiled: June 28, 2012Publication date: May 2, 2013Applicant: Kabushiki Kaisha ToshibaInventor: Yuki Sato
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Publication number: 20130107567Abstract: A display apparatus includes a panel module and a backlight module. The backlight module is disposed under the panel module. The backlight module includes a frame, a light guide plate, and a reflector. The frame supports the edge of the light guide plate. The reflector is disposed at the bottom of the light guide plate. The edge of the reflector and that of the frame horizontally form an engaging seam without overlapping, and the engaging seam is substantially in a serrated shape.Type: ApplicationFiled: April 19, 2012Publication date: May 2, 2013Applicant: AU Optronics CorporationInventors: Yi-Fan LIN, Shih-Yao LIN
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Patent number: 8432675Abstract: In one embodiment, a computer display includes a display screen, an outer housing that surrounds the display screen, and a light integrated into the outer housing.Type: GrantFiled: July 18, 2008Date of Patent: April 30, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeffrey A. Lev, Paul J. Doczy, Mark S. Tracy