Holder Patents (Class 362/634)
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Patent number: 7581866Abstract: A lamp module for use in a liquid crystal display includes a lamp tube, a reflector, a dismantling mechanism disposed on the reflector. The reflector comprises a first side, a second side, and a third side forming a sink, for accommodating the lamp tube and reflecting light from the lamp tube. The dismantling mechanism disposed on the reflector and outside a bezel of the liquid crystal display when the lamp module is assembled to the liquid crystal display. The lamp module is capable of being disassembled from the bezel of the liquid crystal display by applying a force on the dismantling mechanism.Type: GrantFiled: January 12, 2007Date of Patent: September 1, 2009Assignee: AU Optronics Corp.Inventors: Tung-liang Shao, Chi-chun Yang, Ye-hen Chien
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Patent number: 7578609Abstract: A backlight assembly includes a frame, a light source, and at least one optical film. The light source is disposed on the frame. The optical film has at least one positioning flange. The frame has a first, a second and a third member to form a polygonal accommodating area and is adapted to receive the optical film. First and second containing regions are positioned adjacent to a place which the third member is connected to the first member and the third member is connected to the second member, respectively. The first containing region projects into the first and third members, and the second containing region projects into the second and third members, so that the first containing region and the second containing region are adapted to receive the shaped positioning flange of the optical film.Type: GrantFiled: January 24, 2007Date of Patent: August 25, 2009Assignee: AU Optronics Corp.Inventors: Che-Chih Chang, Chi-Chung Lo
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Patent number: 7578610Abstract: A light source unit includes: a light source board mounted with a light source; a case that houses the light source board; and a holding member that is disposed integrally with an inner wall of the case, and hold the light source board with the case.Type: GrantFiled: January 18, 2007Date of Patent: August 25, 2009Assignee: Mitsubishi Electric CorporationInventors: Takuya Sakamoto, Seiji Sakai
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Patent number: 7575361Abstract: An exemplary backlight module (11) includes a light guide plate (15) and a frame (16) receiving the light guide plate. The frame includes a plurality, of corners and a plurality of buffering protrusion (168). At least one of the corners is a non-sharp corner, and the buffering protrusions (168) are provided at an outer side of at least one non-sharp corner. The buffering protrusions can absorb most of forces applied to the frame. A liquid crystal display (1) employing the backlight module is also provided.Type: GrantFiled: July 9, 2007Date of Patent: August 18, 2009Assignee: Innolux Display Corp.Inventor: Chao-Tsun Kuo
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Patent number: 7575360Abstract: A spread illuminating apparatus includes a point light source, a light conductor plate having a light inlet surface facing the point light source, and a housing frame to hold the point light source and the light conductor plate, wherein the housing frame includes an inner frame member and an outer frame member to enclose the inner frame member, the point light source is disposed at an end wall of the outer frame member, the light conductor plate is held in the inner frame member by joint mechanisms such that the light inlet surface of the light conductor plate is positioned inward of a forefront face of the inner frame member with a predetermined distance therefrom, and wherein the inner frame member is housed in the outer frame member with a predetermined constant clearance provided between the point light source and the light inlet surface of the light conductor plate.Type: GrantFiled: June 27, 2007Date of Patent: August 18, 2009Assignee: Minebea Co., Ltd.Inventors: Yasuo Ohno, Katsumi Nagata, Masahisa Nishio
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Publication number: 20090201699Abstract: A planar illumination device in which workability of a filling work of a heat conduction agent is improved and a heat generated from a point-like light source is efficiently radiated so as to achieve high brightness. In a planar illumination device 1 according to the present invention, a recess portion 23 is formed on a part of a face on which a point-like light source 3 is mounted in a double-sided flexible print circuit board 10, a bottom face 22 of the recess portion 23 is made of a conductor pattern 7R on the opposite side 10R of a side 10F on which the point-like light source is mounted in the double-sided flexible print circuit board 10, and a heat conducting resin 11 is filled in a space constituted by the recess portion 23 and the mounting face 3b of the point-like light source 3. The double-sided flexible print circuit board 10 is preferably mounted on a radiator plate 5a using a heat conducting tape 12.Type: ApplicationFiled: October 18, 2006Publication date: August 13, 2009Applicant: MINEBEA CO., LTD.Inventor: Yasuo Ohno
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Patent number: 7556418Abstract: A backlight assembly includes a lamp assembly, a receiving container and a panel guiding frame. The lamp assembly includes a light source to generate light and a lamp cover to reflect the light. The receiving container includes a bottom and a sidewall. The sidewall includes a first sidewall portion facing the lamp cover and separated from the lamp cover by a first interval and a second sidewall portion separated from the lamp cover by a second interval narrower than the first interval. The panel guiding frame includes a first frame portion facing an end of the bottom and a second frame portion extended from the first frame portion along a side face of the second sidewall and having an opening corresponding to the first sidewall portion. Thus, the backlight assembly may have a reduced non-effective display area.Type: GrantFiled: December 27, 2005Date of Patent: July 7, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Soo Shin, Jeoung-Gwen Lee
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Patent number: 7554626Abstract: A liquid crystal display device characterized in that an illumination unit includes a substantially wedge-shaped light-guiding plate 5 being tilted such that plate thickness becomes thinner from one side edge toward the other side edge, a light source 41 disposed along the thicker plate surface of the light-guiding plate, lead wires 43, 44 of the light source, and a housing 7 that houses these parts, in which the light-guiding plate is installed such that a gap L2 between the backside 52 of the light-guiding plate and the bottom wall of the housing becomes larger as the plate thickness becomes thinner, and a portion of the lead wires resides in the gap L2 and the wires are arranged along the other side edge 54 of the light-guiding plate.Type: GrantFiled: March 29, 2004Date of Patent: June 30, 2009Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.Inventors: Naruo Hashino, Hiroki Sakemoto
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Patent number: 7551241Abstract: A liquid crystal display apparatus (1) comprises a liquid crystal display panel (2), a plurality of cold cathode tubes to illuminate the liquid crystal display panel 2 from a rear face side thereof, and a frame (7) to support the liquid crystal display panel (2) and the cold cathode tubes (3). The cold cathode tube (3) is fixed on the frame (7) with a tube fixing member (11) having a pair of hooking protrusions (11c) which are hooked with edges of a hooking hole (7c). A protective barrier (7d) is formed on a rear face of a bottom (7a) of the frame (7) to protrude outward and to enclose the hooking hole (7c), and a height of the protective barrier (7d) is higher than a height of the hooking protrusions (11c) when the hooking protrusions (11c) is hooked with the edges of the hooking hole (7c), thereby enabling to disengage the hooking protrusions (11c) from the hooking hole (7c) by touch of fingers of a worker during an assemble work of the liquid crystal display apparatus (1).Type: GrantFiled: May 2, 2007Date of Patent: June 23, 2009Assignee: Funai Electric Co., Ltd.Inventor: Yutaka Fukuda
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Patent number: 7540650Abstract: A lamp holding apparatus for mounting a lamp to a base member includes a mounting plate having a pair of locking portions protruding to a base side. The locking portion is inserted into a mounting hole provided at the base and capable of being locked to a peripheral edge on its back side. Abutting portions, which protrude to the base side and are capable of abutting the base at the time of mounting, are provided on a bottom surface of the mounting plate that is an opposing surface to the base. The abutting portions are provided at three spots with one of the locking portions interposed therebetween. At the time of mounting, each of the abutting portions abut the base, and the mounting plate is elastically deformed so as to be warped, whereby the locking surface of the locking portion is kept in the state in which it is locked to a peripheral edge of a back side of the mounting hole by its elastic force.Type: GrantFiled: November 15, 2006Date of Patent: June 2, 2009Assignee: Sharp Kabushiki KaishaInventors: Hiroki Azuma, Tatsuya Kudari, Yoshiki Takata
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Patent number: 7537355Abstract: A direct type backlight module includes a light guide plate, a plurality of supporting units and a plurality of light sources. The light guide plate includes a bottom surface, and an emitting surface opposite to the bottom surface, a plurality of grooves formed on the bottom surface. The light sources are fixed in the grooves with the corresponding supporting units. The present backlight module has a thin body and also has a high optical brightness.Type: GrantFiled: August 16, 2006Date of Patent: May 26, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventor: Guo-Han Yue
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Patent number: 7534007Abstract: A backlight module is disclosed. The backlight module includes a back plate, a diffuser and a supporter. The diffuser is disposed over the back plate. The supporter is disposed between the back plate and the diffuser and includes a seat and a fixing member. The fixing member has one or more protrusions formed thereon and the seat and fixing member are adapted to fix a light source.Type: GrantFiled: May 24, 2005Date of Patent: May 19, 2009Assignee: AU Optronics Corp.Inventors: Ching-Kun Lai, Chung-Te Lee
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Patent number: 7534004Abstract: An exemplary backlight module (300) includes a light source (320), a frame (310) and diffusing plate (340). The frame includes an inner bottom surface (314) and an inner side surface (312) adjacent to the bottom surface. The side surface includes a light reflecting and converging structure. The diffusing plate cooperates with the frame to define a space that accommodates the light source. The side surfaces having the v-shape structures can reflect and converge light beams toward the middle portion of the diffusing plate, thus preventing these light beams from otherwise obliquely entering peripheries of the diffusing plate and subsequently being lost. Therefore, the backlight module has an increased light utilization ratio.Type: GrantFiled: December 21, 2006Date of Patent: May 19, 2009Assignee: Innolux Display Corp.Inventor: Hsien-Wen Chang
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Patent number: 7530727Abstract: A backlight assembly includes a receiving container including a bottom plate having a lower face and an upper face opposite the lower face, a sidewall part protruding from edge portions of the bottom plate, and a plurality of light property controlling parts disposed on the upper face and having a substantially wedge shaped cross-section. The backlight further includes a light source disposed between adjacent light property controlling parts, and the light source is received by the receiving container, wherein a distance between a center of the light source and the upper face is substantially equal to a height of at least one of the plurality of light property controlling parts. The backlight assembly may increase the brightness and brightness-uniformity of light.Type: GrantFiled: January 10, 2006Date of Patent: May 12, 2009Assignee: Samsung Electronics, Co., Ltd.Inventors: Seong-Sik Choi, Dong-Lyoul Shin, Kui-Yong Choi, Jae-Hwan Chun, Doo-Won Lee
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Patent number: 7527420Abstract: A backlight assembly includes a plurality of lamps, a receiving container, a reflective plate and a lamp-securing member. The lamps are arranged substantially parallel to each other and generate light. The receiving container receives the lamps. The reflective plate is disposed between the lamps and the receiving container. The lamp-securing member includes a body disposed on the reflective plate, a lamp-securing portion formed on the body and securing the lamps, a combining portion combined with the receiving container and a slit portion adjacent to the combining portion.Type: GrantFiled: March 15, 2007Date of Patent: May 5, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Il Kim
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Patent number: 7527419Abstract: A backlight assembly includes a lamp, a light guide plate, a receiving container and a lamp holder. The lamp generates light. The light guide plate has a light incident face through which the light generated by the lamp enters the light guide plate. The light guide plate guides the light. The receiving container has a base plate and sidewalls protruding from the edge portions of the base plate to define a receiving space for receiving the lamp and the light guide plate. The lamp holder holds an end portion of the lamp and includes a buffer portion. When an impact is applied to the backlight assembly, the buffer portion absorbs the impact to prevent damages to the lamp and the light guide plate.Type: GrantFiled: August 25, 2005Date of Patent: May 5, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Seong-Sik Choi, Tae-Gil Kang, Seung-Chul Jeong
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Patent number: 7524102Abstract: A light source device includes: at least four rod-shaped lamps; an attachment plate to which the at least four lamps are attached substantially parallel to one another in a condition where the pitches between the lamps are different from one another; and a plurality of lamp clips each having two holding portions holding adjoining two lamps at middle parts thereof. The separation distance between the two holding portions of a first lamp clip holding two lamps and the separation distance between the two holding portions of a second lamp clip holding two lamps adjoining the two lamps are substantially the same.Type: GrantFiled: July 5, 2007Date of Patent: April 28, 2009Assignee: Sharp Kabushiki KaishaInventors: Masashi Yokota, Tsutomu Tsuji, Takaharu Kikuchi
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Patent number: 7524210Abstract: A capacitive connector for a backlight unit having a light source including: a first conductive layer covering an end portion of the light source; an insulation layer covering an external surface of the first conductive layer; and a second conductive layer separated from the first conductive layer with the insulation layer interposed therebetween.Type: GrantFiled: December 28, 2007Date of Patent: April 28, 2009Assignee: LG Display Co., Ltd.Inventors: Young-Eun Lee, Seung-Hyun Lee
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Patent number: 7520655Abstract: A housing member accommodates a liquid crystal display panel and a lighting unit. The housing member is provided with a penetrated space for receiving a light-source unit in the lighting unit therein. A pair of fastening members are attached to a pair of openings of the space, respectively, for supporting the light-source unit within the space such that each of the fastening members allows to insert the light-source unit into the space from either one of the pair of the openings.Type: GrantFiled: September 26, 2006Date of Patent: April 21, 2009Assignee: NEC LCD Technologies, Ltd.Inventor: Shizuo Morishita
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Patent number: 7517134Abstract: A backlight unit has a frame, at least one optical film, and at least one light source accommodated in the frame. The frame has a top wall, a bottom wall opposite to the top wall, two opposite side walls, and at least one protuberance integrated on the top wall. The at least one optical film includes at least one through-hole with respect to the at least one protuberance. The at least one protuberance drills through the at least one through-hole for hanging the at least one optical film on the frame.Type: GrantFiled: June 22, 2006Date of Patent: April 14, 2009Assignee: Chi Mei Optoelectronics Corp.Inventor: Che-Chang Hu
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Patent number: 7517133Abstract: A backlight assembly comprises a light source, and a chassis that receives the light source, wherein the chassis includes a body layer, a metal reflecting layer formed on the body layer to reflect light generated from the light source, an adhesive layer formed between the body layer and the metal reflecting layer, and a protecting layer formed on the metal reflecting layer.Type: GrantFiled: November 8, 2005Date of Patent: April 14, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Woong Han, Kyu-Seok Kim, Young-Bee Chu, Sang-Hee Lee, Young-Hee Park
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Patent number: 7517135Abstract: An exemplary backlight module includes a light guide plate (14), a frame (15), and an illuminator (16). The light guide plate includes a light incident surface (142), and a side surface (149) opposite to the light incident surface. The illuminator is adjacent the light incident surface. The frame receives the light guide plate and the illuminator, and includes an elastic member (156) either elastically pushing the side surface toward the illuminator or elastically pushing the illuminator toward the light incident surface.Type: GrantFiled: November 20, 2006Date of Patent: April 14, 2009Assignee: Innolux Display Corp.Inventor: Chih-Chia Yu
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Patent number: 7510317Abstract: An illuminating device for a display device includes a light source lamp and a lamp supporting member and has (1) a configuration in which the lamp supporting member has a fixing pin provided at a position other than a position substantially just under the light source lamp, (2) a configuration in which the lamp supporting member is formed of a reflective material, or (3) a configuration in which the above-mentioned configurations are combined.Type: GrantFiled: June 1, 2005Date of Patent: March 31, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Murakami, Satoshi Ono
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Patent number: 7510318Abstract: The fastening apparatus utilizes a hanger and a hook disposed on the first side of a base of the fastening apparatus for hanging and fixing the fastening apparatus on a back cover of the LCD device. A groove divides the base into two parts and the outer part of the base as well as the hook is flexible relative to the inner part of the base. Two crack arresters are disposed at the end of the groove for preventing cracking of the fastening apparatus when repeated bending movement is needed while installing the fastening apparatus.Type: GrantFiled: March 12, 2007Date of Patent: March 31, 2009Assignee: HannStar Display Corp.Inventor: Po-Chun Chen
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Patent number: 7507013Abstract: A surface light source unit includes a cold-cathode fluorescent tube, a light guide which receives light from the cold-cathode fluorescent tube and outputs the light, a back frame supporting the cold-cathode fluorescent tube and the light guide and including a projection used to position the light guide and the cold-cathode fluorescent tube, and a lamp holder including a holding portion which holds an end of the cold-cathode fluorescent tube, and a buffering portion provided between the projection and the cold-cathode fluorescent tube.Type: GrantFiled: May 1, 2006Date of Patent: March 24, 2009Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Makoto Shimizu, Toshihiko Ura, Yoshinori Yasuda, Hiromi Kaneda
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Patent number: 7503682Abstract: A backlight unit containing one or more light sources and fabrication method provided. Each light source has a tube with a first bent side connected to a first end and a second bent side connected to a second end. First and second electrodes are disposed on the tube between the bent sides and their corresponding ends. The backlight unit further includes a first plate having oppositely spaced edge regions. Each edge region has holes. A first portion of each light source is disposed above the first plate and a second portion of each light source is disposed below the first plate. The first and second common electrodes are electrically connected to the first and second electrodes disposed on the tube.Type: GrantFiled: November 29, 2005Date of Patent: March 17, 2009Assignee: LG. Display Co., Ltd.Inventor: Yong Yun Kim
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Patent number: 7490973Abstract: A lighting device includes a board mounting a light source, a first hole provided in the board, a projecting part protruded inside the first hole from a periphery of the first hole, a light guide which receives a light emitted from the light source through a light receiving plane, and transmits the light from a light transmitting plane, and the first protrusion which is integrally formed in the light guide and is inserted into the first hole, wherein the projecting part presses a side of the first protrusion so that the board can move toward the light receiving plane.Type: GrantFiled: February 6, 2006Date of Patent: February 17, 2009Assignee: Seiko Epson CorporationInventors: Yoichi Fujikawa, Osamu Eda
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Patent number: 7490972Abstract: A surface light source apparatus includes: a fluorescent discharge tube having a bent portion; a light guide plate which has a corner portion facing the bent portion; a rear frame which receives the light guide plate and is formed of a resin material; and a middle frame which is provided parallel with the rear frame and is formed of a resin material. The rear frame or the middle frame has a protrusion which is in contact with the corner portion. The bent portion of the fluorescent discharge tube is disposed in a gap between the protrusion and the side surface of the rear frame.Type: GrantFiled: August 25, 2006Date of Patent: February 17, 2009Assignee: Mitsubishi Electric CorporationInventor: Toru Kokogawa
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Publication number: 20090034297Abstract: A scanner module and an image scanning apparatus includes an illuminator that includes a light source, a light guide extending in a main scanning direction to change a direction of the light from the light source, a guide holder recessed with a light guide mounting portion in which the light guide is mounted, and at least one supporting protrusion protruding from an entrance of the light guide mounting portion into the light guide mounting portion to support the light guide received in the light guide mounting portion. As the light guide is supported by the supporting protrusion formed at the entrance of the light guide mounting portion, it is possible to reduce deformation of the light guide and/or to prevent the light guide from being falling out of the light guide mounting portion when subjected to, e.g., a shock.Type: ApplicationFiled: July 31, 2008Publication date: February 5, 2009Inventors: Gyung Mo TAHK, Hyun Surk Kim, Kyung Rok Kim, Dong Hun Lee
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Patent number: 7481569Abstract: A direct type backlight module includes a frame, at least an optical sheet, and at least a light guide source. The frame includes a plurality of peripheral sidewalls, at least one holding portion defined in a top of the sidewalls, and an elastic member defined in the holding portion. The optical sheet having a positioning hole corresponding to the elastic member is fixed in the frame by the elastic member being mounted into the positioning hole thereby pushing an inner surface of the positioning hole towards an outer area of the optical sheet. The light source is disposed under the optical sheet. The optical sheet may be fixed on the frame tightly, and may avoid being deformed effectively due to a stretching force produced by the elastic member.Type: GrantFiled: August 16, 2006Date of Patent: January 27, 2009Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Shao-Han Chang
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Patent number: 7481568Abstract: An uneven surface portion is formed on the inner surface of a lamp holder to thereby reduce the contact area between the inner surface of the lamp holder and a light incident face of a light guide plate. The light incident face of the light guide plate and the inner surface of the lamp holder are prevented from coming into close contact with each other due to heat transferring from cold-cathode fluorescent tubes and to the light guide plate. The heat transferring via the lamp holder to the light guide plate is intercepted by an air layer occurring between the uneven surface portion of the lamp holder and the light incident face of the light guide plate. Accordingly, it can be prevented that a part of the lamp holder sticks to the light incident face of the light guide plate of the backlight when the lamp holder is replaced.Type: GrantFiled: December 12, 2006Date of Patent: January 27, 2009Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Makoto Shimizu, Yoshinori Yasuda, Toshihiko Ura
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Patent number: 7473023Abstract: A backlight assembly includes a lamp assembly generating light, a light guide plate changing a path of light incident from the lamp assembly, a receiving container having a bottom part and a side part vertically extending from the bottom part and forming a receiving space, and an adhesive member fixing the light guide plate to the receiving container. The light guide plate includes a prism pattern on a surface, and the adhesive member is attached to a light-adjusting portion opposite to the lamp assembly. Therefore, the light guide plate may be affixed to the receiving container without additional structure and the appearance of the backlight assembly may be improved by preventing modification of the prism pattern.Type: GrantFiled: February 10, 2005Date of Patent: January 6, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hwan Chun, Hee-Sun Kim, Hyo-Suck Chun, Seung-Je Lee
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Patent number: 7473018Abstract: A back light assembly includes a light guide plate (LGP), a light reflecting member (LRM), at least two lamps, and a receiving container. The LGP includes a light incidence face having a width that is a first distance, a light reflecting face for reflecting a first light, and a light exiting face for emitting the reflected first light as a second light. The LRM covers the light incidence face to form a receiving space defined by the LRM and the light incidence face. The at least two lamps are disposed in the receiving space and spaced apart from each other by a second distance. A sum of diameters of the two lamps and the second distance is longer than the first distance. The receiving container receives the LGP and the LRM, where the LRM includes a chamfer disposed at an edge, the chamfer enhancing a reflection efficiency.Type: GrantFiled: July 3, 2003Date of Patent: January 6, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Hea-Chun Lee
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Patent number: 7473022Abstract: Disclosed herein is a backlight unit, capable of easily forming a curved or three-dimensional shape. The backlight unit according to the present invention comprises a light guide panel which includes a light guide plate having on one surface or both surfaces thereof a plurality of notches, an uneven dot pattern, a printed dot pattern or a sanded surface, or a light diffusion plate; a luminous means which includes a lamp mounted on a PCB to emit light to the light guide panel; a groove formed along an edge of the light guide panel so that the luminous means is installed in the light guide panel; and a thin heat radiating plate fixed on a back surface of the PCB along the groove.Type: GrantFiled: May 4, 2006Date of Patent: January 6, 2009Assignee: Fawoo Technology Co., Ltd.Inventor: Tae Kun Yoo
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Patent number: 7467887Abstract: Light emitting assemblies include a transparent light emitting panel member having two or more separate parts or modular components each having at least one side edge or end edge facing each other and in close proximity to one another. One or both sides of one or more of the parts or components has a pattern of light extracting deformities for providing a desired light output distribution from the panel member.Type: GrantFiled: August 15, 2006Date of Patent: December 23, 2008Assignee: Solid State Opto LimitedInventor: Jeffery R. Parker
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Patent number: 7461958Abstract: A lamp holding apparatus for mounting a lamp to a lamp mounting member includes a mounting plate provided with a locking portion which protrudes to a base side, inserted into a mounting hole provided at the base and is lockable to a peripheral edge of a back side thereof. The mounting plate is provided with a pin which protrudes to an opposite side from the base side and is capable of being gripped by an operator at a time of being attached to and detached from the base. The locking portion is disposed at a position corresponding to a back side of the pin. As a result, when the locking portion is inserted into the mounting hole while gripping the pin, both the locking portion and the mounting hole are easily positioned. Thus, at a time of insertion, bending forces are reduced.Type: GrantFiled: November 15, 2006Date of Patent: December 9, 2008Assignee: Sharp Kabushiki KaishaInventors: Yoshiki Takata, Hiroki Azuma, Tatsuya Kudari
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Patent number: 7455442Abstract: A backlight module includes a back plate, replaceable light source sets, external electrode lamps, and a fastening device. Each replaceable light source set is disposed on the back plate and has an electrically conductive strip. The external electrode lamps are disposed on one of the replaceable light source sets and each has an external electrode electrically connected with the electrically conductive strip. The fastening device is used for fastening the replaceable light source sets and comprises an electrically conductive element electrically connected with the electrically conductive strips.Type: GrantFiled: January 4, 2006Date of Patent: November 25, 2008Assignee: HannStar Display Corp.Inventors: Chi-Jen Huang, Hsin Chieh Lai
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Patent number: 7452121Abstract: A backlight assembly includes a light-generating device, a receiving container, a first heat-dissipating member, a heat-blocking member, and a second heat-dissipating member. The receiving container receives the light-generating device. The first heat-dissipating member contacts the receiving container. The heat-blocking member is disposed on the first heat-dissipating member. The second heat-dissipating member contacts the first heat-dissipating member. Therefore, liquid crystal is prevented from being deteriorated by heat generated by a light source.Type: GrantFiled: July 13, 2006Date of Patent: November 18, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Joo-Woan Cho, Sang-Hoon Lee, Sang-Yu Lee, Gi-Cherl Kim, Chun-Ho Song
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Publication number: 20080278654Abstract: A terminal includes a supporting plate, a holding member, a connection portion and a receiving portion. The terminal is connected to a lamp for a liquid crystal display (LCD) device. The holding member protrudes from a side of the supporting plate to surround a wire. The connection portion protrudes from an upper portion of the supporting plate and is bent to hold an electrode of the lamp. The receiving portion protrudes from the connection portion and is bent to be held by the holding member with the wire. Therefore, separation of the lamp from the terminal is prevented.Type: ApplicationFiled: May 9, 2008Publication date: November 13, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Kyu-Bok Hwang
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Patent number: 7448784Abstract: A branch portion of a socket is formed into a thin cylindrical shape so that it can be elastically displaced, end faces of both side plates of a lamp reflector are made to be points for positioning, positioning protrusions are integrally protruded from both side outer end edge portions of each socket body, under the condition that a substantially L-shaped through-passage of each socket is externally engaged with each lead wire, an end portion of each lead wire is brazed to both end portions of a straight-pipe-shaped light source, when each socket is slid along each lead wire, each socket covers a region from the end portion of each lead wire to the end portion of the straight-pipe-shaped light source, and each socket body is inserted into a lamp reflector so as to make a positioning protrusion come into contact with a positioning point.Type: GrantFiled: November 22, 2005Date of Patent: November 11, 2008Assignee: Funai Electric Co., Ltd.Inventor: Mitsuru Tanaka
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Patent number: 7445369Abstract: An exemplary backlight module (20) includes a light guiding plate (240) with a light incident surface (241), a frame (230) receiving the light guiding plate, and at least one point light source (260) disposed between the light incident surface of the light guiding plate and the frame, the at least one point light sources includes a light emitting portion (262) and an elastic member (263). The light emitting portion and the elastic member are at opposite sides of the at least one point light source, and the elastic member elastically urges the frame such that the light emitting portion firmly contacts the light incident surface. A liquid crystal display using the backlight module is also provided.Type: GrantFiled: October 1, 2007Date of Patent: November 4, 2008Assignee: Innolux Display Corp.Inventors: Cheng-Hsien Yu, Cheng-Feng Tsai
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Publication number: 20080266482Abstract: A backlight assembly and a liquid crystal display having the same which can prevent a lamp wire from being damaged, simplify the manufacturing process, and reduce the manufacturing cost. The backlight assembly includes a receiving container for receiving a lamp, a lamp wire, connected to the lamp, for supplying power to the lamp, and a lamp holder, coupled to the receiving container and connected to the lamp, for guiding the lamp wire in parallel with the lamp.Type: ApplicationFiled: March 6, 2008Publication date: October 30, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Ho-Han Ryu
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Patent number: 7441938Abstract: A planar light source device includes: a plurality of point light sources, each of which emits a light; a light guide plate that includes a first surface, and a second surface perpendicular to the first surface, and that is configured to guide the emitted lights incident from the first surface to be emitted from the second surface; a bottom case including a side portion substantially parallel to the first surface; a light source substrate that includes the plurality of point light sources arranged thereon at a predetermined interval, and that is arranged at a side of the first surface; a frame that sandwiches the light source substrate and the side portion of the bottom case and holds the second surface and that includes a plurality of gaps at positions facing the point light source.Type: GrantFiled: January 17, 2007Date of Patent: October 28, 2008Assignee: Mitsubishi Electric CorporationInventors: Seiji Sakai, Takuya Sakamoto
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Patent number: 7441921Abstract: A backlight unit includes at least one cold cathode fluorescent lamp arranged at a lower end of a bottom cover, external electrode fluorescent lamps arranged on the bottom cover above the cold cathode fluorescent lamp, and inverters disposed on a rear side of the bottom cover for driving the at least one cold cathode fluorescent lamp and the external electrode fluorescent lamps.Type: GrantFiled: June 29, 2006Date of Patent: October 28, 2008Assignee: LG. Philips LCD Co., Ltd.Inventor: Sin Kyun Park
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Patent number: 7434978Abstract: A backlight module comprises a bezel, an LED circuit board, an LED, and a driving circuit board. The bezel has a hole and the LED circuit board is disposed on the bezel and includes a first surface and a second surface. There is a first connector disposed on the second surface and passing through the hole of the bezel. The LED is welded on the second surface of the LED circuit board, an emitting end of the LED is protruded outside the first surface. The driving circuit board has a second connector, the second connector is connected to the fist connector so as to transmit signals to the LED circuit board.Type: GrantFiled: September 5, 2006Date of Patent: October 14, 2008Assignee: AU Optronics Corp.Inventor: Shen-Hong Chou
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Patent number: 7434957Abstract: A backlight unit includes a plurality of lamps, a gripping device, and fasteners. The gripping device couples the ends of the plurality of lamps. The fasteners secure the lamps and gripping device to a frame of the backlight unit. A method of assembling a backlight display includes: aligning a cylindrical lamp with a flange of a gripping device; sliding the lamp past a flaring portion of a holding portion; and seating the lamp into the holding portion by pressing the lamp into a concave portion of the holding portion.Type: GrantFiled: October 6, 2004Date of Patent: October 14, 2008Assignee: LG Display Co., Ltd.Inventors: Jae Bum Kim, Seok Hwan Oh
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Patent number: 7434979Abstract: In a backlight assembly and an LCD apparatus having the same, a lamp-fixing member includes a base substrate, a fixing clip protruded from a base substrate so as to fix a lamp and a fixing portion formed by partially cutting-away the base substrate. A mold frame includes a receiving portion for receiving the lamp-fixing member and the receiving portion includes a fixing protrusion inserted into the fixing portion. The fixing protrusion includes a supporting portion formed at an end of the fixing protrusion and coupled to the base substrate when the lamp-fixing member is slid. Accordingly, the backlight assembly may have an improved light efficiency and an enhanced assemblability.Type: GrantFiled: March 13, 2007Date of Patent: October 14, 2008Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Il Kim
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Patent number: 7434974Abstract: Light emitting panel assembly includes a light emitting panel member received in a cavity or recess in a tray or housing. The panel member has a pattern of light extracting deformities on or in at least one surface of the panel member to cause light received from at least one LED light source positioned near or against the light entrance surface of the panel member to be emitted from a light emitting surface of the panel member. The tray or housing acts as an end edge and/or side edge reflector for the panel member to reflect light that would otherwise exit the panel member through the end edge and/or side edge back into the panel member for causing additional light to be emitted from the panel member.Type: GrantFiled: March 17, 2006Date of Patent: October 14, 2008Assignee: Solid State Opto LimitedInventor: Jeffery R. Parker
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Patent number: 7427155Abstract: A liquid crystal module provides for concave shaped recesses formed in an elastic member along the circumference of a linear light source that is arranged on the side of a light guide, and lamp holders attached to both ends of the linear light source, while ring-shaped hard members are engaged with the recesses. Thus, the hard members serve as a grip against an impact applied to the linear light source, and the linear light source is prevented from being damaged. Accordingly, a sidelight-type liquid crystal module with a liquid crystal panel is thereby obtained, in which the damage to the linear light source (when an impact, or the like, is applied to the liquid crystal panel) is prevented by simple means without affecting the quality of light that is emitted toward the liquid crystal panel.Type: GrantFiled: November 12, 2004Date of Patent: September 23, 2008Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.Inventors: Taiji Nakagawa, Seiji Morimoto, Yuki Muraoka
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Publication number: 20080225556Abstract: The fastening apparatus utilizes a hanger and a hook disposed on the first side of a base of the fastening apparatus for hanging and fixing the fastening apparatus on a back cover of the LCD device. A groove divides the base into two parts and the outer part of the base as well as the hook is flexible relative to the inner part of the base. Two crack arresters are disposed at the end of the groove for preventing cracking of the fastening apparatus when repeated bending movement is needed while installing the fastening apparatus.Type: ApplicationFiled: March 12, 2007Publication date: September 18, 2008Inventor: Po-Chun Chen