Heating Or Cooling Element Other Than For Exciting Patents (Class 349/161)
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Patent number: 7967446Abstract: A liquid crystal projector apparatus has a liquid crystal unit having a liquid crystal panel for modulating light, an incident side polarizing plate and an exit side polarizing plate disposed in front of and behind the liquid crystal panel along the optical axis, respectively, a first holder member for holding the liquid crystal unit, a first heat exchanger disposed in close proximity to the first holder member for dissipating heat generated by the liquid crystal unit and then conducted to the first holder member using a coolant liquid which passes through a first channel formed inside the first heat exchanger, a pump for circulating the coolant liquid, and a radiator for cooling the coolant liquid.Type: GrantFiled: March 5, 2010Date of Patent: June 28, 2011Assignee: NEC Viewtechnology, Ltd.Inventor: Motoyasu Utsunomiya
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Publication number: 20110149198Abstract: A display device is disclosed. The display device includes a display panel, a frame disposed in the rear of the display panel, a backlight unit disposed between the display panel and the frame, a driver attached to a back surface of the frame, and a back cover that is disposed in the rear of the driver and is connected to the back surface of the frame. At least one of the frame and the back cover includes a heat dissipation member.Type: ApplicationFiled: December 23, 2010Publication date: June 23, 2011Inventors: Youngmin KIM, Sanghoon Kim, Hoyoung Seo, Deoksoo Kim, Sungwoo Kim
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Publication number: 20110134384Abstract: A liquid crystal display that can suppress an irregularity in temperature in planes of a liquid crystal cell and polarizers, which is caused by heat radiated from a backlight and can 5 suppress depolarization caused by the temperature irregularity, in which, as compared with a conventional liquid crystal display, appearance defects are reduced. The liquid crystal display of the present invention includes a first polarizer 10, a liquid crystal cell 11, a second polarizer 12, a 10 thermal control element 14 with a thermal conductivity of 0.3 W/(m·K) or higher, an air layer 15, and a backlight 13, which are arranged in this order.Type: ApplicationFiled: August 10, 2010Publication date: June 9, 2011Applicant: NITTO DENKO CORPORATIONInventor: Nao Murakami
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Patent number: 7954967Abstract: A stereoscopic display apparatus includes a liquid-crystal display device that has display pixels arranged in a matrix and displays an elemental image array formed from a plurality of field images on the display pixels to render stereoscopic display, a parallax creating unit provided on the front surface or the rear surface of the liquid-crystal display device, and a directional backlight that emits light through the liquid-crystal display device then through the parallax creating unit and switches directions of the thus-emitted light among a plurality of directions according to a display of the field image is disclosed.Type: GrantFiled: August 21, 2008Date of Patent: June 7, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Masako Kashiwagi, Tatsuo Saishu, Rieko Fukushima
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Patent number: 7956979Abstract: A display apparatus includes a display module displaying an image using power and a control signal, the display module having a first surface including at least one power supply unit for supplying the power and a control board for supplying the control signal, and a heat radiation cover portion covering a part of the first surface of the display module including the power supply unit and the control board, wherein the heat radiation cover portion forms an air passage between the first surface of the display module and the heat radiation cover portion.Type: GrantFiled: August 18, 2008Date of Patent: June 7, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Rok Oh, Jin-Ho Park, Chae-Woo Chung, Il-Goo Yoon, Won-Seok Kim, Soo-Young Park
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Patent number: 7952682Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight disposed at the back of the liquid crystal display panel. The backlight includes a frame, a light source, a reflective sheet, and a heat dissipating plate formed in a rectangular shape and housing the light source, the reflective sheet, and the heat dissipating plate. The heat dissipating plate is disposed between the reflective sheet and a bottom surface of the frame and includes a first portion and a second portion facing the first portion, and has a plurality of first openings at the first portion and at least one second opening at the second portion. The plurality of first openings are formed along the first portion, and each of the first openings has a first edge and a first fin formed at a part of the first edge.Type: GrantFiled: January 19, 2011Date of Patent: May 31, 2011Assignee: Hitachi Displays, Ltd.Inventors: Masafumi Nagaoka, Takayuki Ota, Kazuyoshi Tanaka, Akio Tezuka
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Publication number: 20110102712Abstract: A polarization element includes: a substrate; a plurality of protruding sections formed on the substrate in a striped manner in a plan view; and a heat radiation section formed on a top portion of each of the protruding sections, wherein the heat radiation section has a concavo-convex section.Type: ApplicationFiled: September 14, 2010Publication date: May 5, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Yoshitomo KUMAI
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Patent number: 7932987Abstract: An LCD includes a first substrate, a heating layer formed on the first substrate, an insulating layer having a first opening formed on the heating layer, at least one switching device, two contact pads formed on the insulating layer, and respectively electrically connected to the scan line and the data line, a capacitor, a bridge electrode formed in the first opening, a passivation layer covering the switching device and the capacitor, a pixel electrode formed on the passivation layer and electrically connected to the drain of the switching device, a second substrate having a common electrode disposed on the first substrate, and a liquid crystal layer. The source of the switching device is connected to the data line. The passivation layer has a plurality of second openings respectively exposing the contact pads and the bridge electrode, wherein the bridge electrode is electrically disconnected from the contact pads.Type: GrantFiled: March 29, 2010Date of Patent: April 26, 2011Assignee: AU Optronics Corp.Inventors: Mao-Yi Chang, Chia-Tien Peng, Chih-Wei Chao, Chien-Sen Weng, Chao-Shun Liao
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Patent number: 7916264Abstract: An exemplary liquid crystal display device (2) includes a liquid crystal panel (21) and a heating system. The heating system heats the liquid crystal panel when the temperature of the liquid crystal panel is below a predetermined threshold temperature. The liquid crystal display device can work normally without being adversely influenced by the surrounding temperature.Type: GrantFiled: October 29, 2007Date of Patent: March 29, 2011Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimel Innolux CorporationInventors: Xin-Sheng Chen, Guo-Hua Yu
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Patent number: 7903226Abstract: Disclosed are a liquid crystal display device 10 and a method of making such liquid crystal display device that improves display quality by providing heat dissipation pattern 4 for effectively dissipating heat generated by the driver ICs 2. The heat dissipation pattern 4 is formed on a glass substrate of a liquid crystal panel 1 along one side thereof so as to minimize non-uniform thermal distribution on the liquid crystal panel 1 at locations adjacent to and distant from the driver ICs 2.Type: GrantFiled: January 16, 2007Date of Patent: March 8, 2011Assignee: NEC LCD Technologies, Ltd.Inventor: Kazuyuki Yuge
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Patent number: 7903416Abstract: A flat panel display including a base frame, a display panel module, and a heat-conductive structure is provided. The base frame includes a control unit. The display panel module is disposed in the base frame and includes a back bracket, a first heating element, and a second heating element. The first heating element and the second heating element are disposed in the back bracket and electrically connected to the control unit. A first distance is formed between the back bracket and the base frame to define a first air passage, a second distance is formed between the back bracket and the base frame to define a second air passage, and the first distance is shorter than the second distance. The heat-conductive structure is disposed in the first air passage, and the position of the heat-conductive structure is corresponding to the position of the first heating element.Type: GrantFiled: September 30, 2009Date of Patent: March 8, 2011Assignee: Coretronic Display Solution CorporationInventor: Bor-Bin Chou
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Patent number: 7903227Abstract: A backlight unit and a liquid crystal display device are provided. The backlight unit includes light emitting diodes; and a plurality of temperature adjusting members which reduce a temperature difference formed by emission of heat of the backlight unit, the heat being caused by a convection current of air in a vicinity of the light emitting diodes and by heat emitted from the plurality of light emitting diodes. The liquid crystal display device includes a plurality of circuit boards which are provided with light emitting diodes; a frame on which the circuit boards are installed; and a plurality of temperature adjusting members provided between the plurality of circuit boards and the frame, wherein the plurality of temperature adjusting members having different heat resistances are arranged according to a temperature distribution of heat emitted from the light emitting diodes such that a uniform temperature distribution is maintained across the display device.Type: GrantFiled: September 27, 2007Date of Patent: March 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Joon Kang, Jin Hyun Cho
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Publication number: 20110051071Abstract: A display apparatus has a first chamber accommodating a display panel, a second chamber accommodating a circuit board which controls the panel, and a heat radiating unit arranged at the rear side of the second chamber.Type: ApplicationFiled: August 31, 2010Publication date: March 3, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Masaya NAKAMICHI, Shohei TAKAHASHI
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Publication number: 20110037937Abstract: An LCD apparatus comprising an LCD screen, backlight arrangements for providing back illumination to the LCD screen, video processing circuitry and air moving devices, characterized in that the air moving devices are arranged to move air to condition the image displaying surface of the LCD screen. An LCD image displaying apparatus according to the present invention could operate at a brightness level of above 1000 nits, and even 3000 nits, which provides an astounding visual effect in the outdoor environment.Type: ApplicationFiled: May 26, 2009Publication date: February 17, 2011Inventors: Yanming Yang, Nanfang Xie, Cai Kang
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Patent number: 7876416Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight disposed at a rear surface of the liquid crystal display panel. The backlight includes a light source, a frame housing the light source, a heat dissipating plate disposed inside the frame, and a reflective sheet disposed at a surface of the heat dissipating plate on the liquid crystal display panel side. The heat dissipating plate is formed with a heat dissipating fin protruding to a surface of the frame on the side opposite to the liquid crystal display panel through an opening formed through the frame in a portion corresponding to the upper portion thereof and formed with an opening which is closed with the frame and the reflective sheet in a portion corresponding to the lower portion thereof.Type: GrantFiled: January 23, 2009Date of Patent: January 25, 2011Assignee: Hitachi Displays, Ltd.Inventors: Masafumi Nagaoka, Takayuki Ota, Kazuyoshi Tanaka, Akio Tezuka
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Patent number: 7866828Abstract: An image display apparatus has a first exhaust fan (13) for mainly exhausting air from a light source unit (9) and discharging the air to the outside of the image display apparatus and a second exhaust fan (14) for mainly exhausting air from a power supply unit (11) and discharging the air to the outside of said image display apparatus. The inspiration face of the second exhaust fan is arranged to partly overlap the expiration face of the first exhaust fan. Accordingly, the internal temperature of the image display apparatus, and hence the temperature of the exhaust air, can be efficiently reduced, and at the same time fan noise of the fans can be reduced. As a result, uprating of power of the light source unit and downsizing of an image display apparatus can be simultaneously achieved.Type: GrantFiled: October 19, 2007Date of Patent: January 11, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Norio Nakagawa, Atsushi Kubo
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Patent number: 7868983Abstract: The invention relates generally to a modular display panel for enclosing Commercial-Off-The-Shelf (“COTS”) display technologies. More particularly, the invention relates to a modular display panel for housing COTS light emitting or transmitting display subassemblies such as Liquid Crystal Displays (LCD) for military and other severe environments. The modular display assembly can comprise a base plate, a first frame, a window, a second, a circuit located, and a plurality of light emitting diodes mounted on the circuit board. The COTS light emitting or transmitting display subassembly can be connected to the second frame.Type: GrantFiled: July 12, 2007Date of Patent: January 11, 2011Assignee: Litton Systems, Inc.Inventors: Steven E. Havelka, Ragini Saxena, Thomas Loo, Thomas McLean, Ban S. Bong
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Publication number: 20100289998Abstract: An embodiment of the present invention provides a heat-dissipating device of electronic equipment that comprises a housing, a heat source, a speaker, and a vibration film arranged inside the housing. The vibration film will vibrate when receiving the energy transmitted from the speaker, resulting in that the heat convection is accelerated and the heat generated by the heat source is removed.Type: ApplicationFiled: September 23, 2009Publication date: November 18, 2010Applicant: HANNSTAR DISPLAY CORP.Inventor: Ting-Hang Pei
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Patent number: 7832871Abstract: A projection type display apparatus includes a housing having a first side on which an air intake opening is arranged and a second side on which an air exhaust opening is arranged, a light source for supplying light, and a light valve device which modulates the light output from the light source. A first fan is provided which draws air from the air intake opening into the housing, and a first ventilation path is coupled with the air intake opening so as to lead air flow from the air intake opening toward a lower portion of the light valve. A second ventilation path is formed from the lower portion of the light valve to an upper portion of the light valve, and a second fan is provided which draws out air flowing from the second ventilation path through the air exhaust opening to outside of the housing.Type: GrantFiled: October 17, 2008Date of Patent: November 16, 2010Assignee: Hitachi, Ltd.Inventors: Kenji Fuse, Mikio Shiraishi, Yasuo Otsuka, Nobuyuki Kaku, Hidehiro Ikeda
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Patent number: 7830660Abstract: A cooling unit to cool the display apparatus including a heat generating unit to generate heat and a casing to accommodate the heat generating unit, the cooling unit includes a cooling fan to generate air flow; a duct which is coupled with the casing and forms a cooling path to connect the cooling fan and the heat generating unit; an inlet portion which is provided to one side of the casing to communicate with the duct; an inlet grill which is provided in the inlet portion to guide air to be inhaled in a direction inclined to a rear surface of the casing; an outlet portion which is provided to an other side of the casing to communicate with the duct, being spaced from the inlet portion; and an outlet grill which is provided in the outlet portion to guide air to be exhaled in a direction inclined to a rear surface of the casing, wherein the exhaled direction provided by the outlet grill is different from the air-inhaling direction provided by the inlet grill.Type: GrantFiled: June 4, 2008Date of Patent: November 9, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Joon Kang, Jin-hyun Cho
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Patent number: 7808573Abstract: An LCOS panel module including a substrate, a flexible printed circuit (FPC), an LCOS panel, and a face mask is provided. The substrate has an adhesive region on a surface thereof. The FPC is disposed on the substrate and has an opening for exposing the adhesive region. The LCOS panel has a bottom surface and a top surface. The bottom surface of the LCOS panel is fixed on the adhesive region of the substrate exposed from the opening through an adhesive layer and is electrically connected to the FPC. The face mask used for framing the display region of the LCOS panel and sheltering from stray light is disposed on the LCOS panel and has a display opening. A display region of the top surface of the LCOS panel is exposed from the display opening of the face mask.Type: GrantFiled: August 14, 2008Date of Patent: October 5, 2010Assignee: Himax Display, Inc.Inventors: Yen-Chen Chen, Bing-Jei Liao, Chia-Chang Tien, Wen-Liang Wu
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Patent number: 7806531Abstract: A projector includes: a casing having a surface; a cooling medium flowpath provided inside the casing, through which a cooling medium is allowed to flow; and a radiator in which a part of the cooling medium flowpath is arranged, the radiator being deployable by rotating with respect to the casing, and adapted to be accommodated in the casing and along the surface of the casing.Type: GrantFiled: October 20, 2006Date of Patent: October 5, 2010Assignee: Seiko Epson CorporationInventors: Makoto Zakoji, Takeshi Seto, Akira Egawa, Kunihiko Takagi
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Publication number: 20100245721Abstract: A liquid crystal module comprises at least a liquid crystal panel with a display side and a liquid crystal side corresponding to each other, wherein at least one portion of the liquid crystal side is a heating portion, such that the heating portion can be driven to heat the liquid crystal side when the temperature of the environmental is under a liquid crystal working temperature. In addition, a liquid crystal anti-freeze method for the liquid crystal module is disclosed.Type: ApplicationFiled: September 22, 2009Publication date: September 30, 2010Applicant: ASKEY COMPUTER CORP.Inventors: Ching-Hui Chang, Ching-Feng Hsieh, Ko-Hsien Lee
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Publication number: 20100238394Abstract: A system for cooling an electronic display where an isolating structure may be used to allow ambient air to cool power modules. The isolating structure substantially prohibits containments which may be present within the ambient air from contacting sensitive electrical components on the power modules or otherwise. A gasket may be used to seal the interface between the power modules and the isolating structure. Heat sinks may be placed in thermal communication with the power supplies and fans may draw air through a narrow channel in which the heat sinks are located. In some embodiments the narrow channel may have the opposing surface of the channel defined by the rear portion of an LED assembly. Exemplary embodiments may use the ambient air to cool both the power modules and a closed loop of isolated gas within the electronic display.Type: ApplicationFiled: February 16, 2010Publication date: September 23, 2010Applicant: MANUFACTURING RESOURCES INTERNATIONAL, INC.Inventor: William R. Dunn
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Patent number: 7800714Abstract: A liquid crystal display includes a first liquid crystal panel and a second liquid crystal panel stacked on each other; and polarizers provided to the panels, together with a polarizer of an adjacent panel, arranged to define a crossed Nicols. When the first liquid crystal panel produces a display from a first display signal, the second liquid crystal panel produces a display from a second display signal obtained from the first display signal. Between a framework and drivers provided to the first liquid crystal panel and the second liquid crystal panel, heat conducting members are arranged to transfer heat from the drivers to the framework so as to improve luminance when two liquid crystal panels are stacked and achieve high display quality.Type: GrantFiled: June 7, 2006Date of Patent: September 21, 2010Assignee: Sharp Kabushiki KaishaInventor: Yoshiki Takata
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Publication number: 20100214505Abstract: A liquid crystal module includes: a liquid crystal display panel; a backlight unit that irradiates light onto the liquid crystal display panel; a panel guide that supports the liquid crystal display panel and the backlight unit in a stacked condition and ensures a panel gap between the liquid crystal display panel and the backlight unit; and a top case facing the panel guide. The panel guide includes one or more ventilation openings that penetrate side walls of the panel guide facing the panel gap.Type: ApplicationFiled: July 10, 2009Publication date: August 26, 2010Inventors: Taewoo Kim, Seungwon Son, Wonkeun Cho
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Patent number: 7782423Abstract: In a liquid crystal display comprising a liquid crystal layer, a pair of substrates between which the liquid crystal layer is arranged, a pair of polarizing plates arranged between which the substrates are arranged, and a light source arranged at an outside of the polarizing plates, the liquid crystal display further comprises a first transparent resin layer arranged between the liquid crystal layer and the light source and a second transparent resin layer to be arranged between the viewer and the liquid crystal layer, and a linear thermal expansion coefficient of the first transparent resin layer is smaller than that of the second transparent resin layer.Type: GrantFiled: January 23, 2008Date of Patent: August 24, 2010Assignee: Hitachi Displays, Ltd.Inventors: Kiyomi Nakamura, Hiroshi Sasaki, Makiko Sugibayashi, Yasushi Tomioka, Katsumi Kondo
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Patent number: 7768591Abstract: The present invention relates to a display panel module. The display panel module includes a display panel; a first casing having a hollow region; an addition member arranged on the first casing; a first adhesive member having one side attached on the first casing, another side attached on the display panel and a breathing structure; and a second casing coupled with the first casing to fix the display panel therebetween.Type: GrantFiled: October 11, 2007Date of Patent: August 3, 2010Assignee: TPO Displays Corp.Inventors: Yi-Hui Chang, Ting-Fang Luo
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Publication number: 20100188633Abstract: A cooling device is provided that can thin a boundary layer and thus obtain the effect of sufficiently improving the heat transfer coefficient. The cooling device for an electronic apparatus that has a plurality of members juxtaposed such that the surfaces of the members confront each other, the surface of at least one member of these members having a heat discharge surface from which heat is discharged, includes: a duct (100) equipped with an opening (100a) whereby a first air flow emitted from the opening (100a) flows in a first direction along the heat discharge surface, and a duct (101) equipped with an opening (101a) whereby a second airflow emitted from the opening (101a) flows along the heat discharge surface in a second direction that intersects with the first direction. Taking as a boundary a line (200c) that passes through the center (200a) of the heat discharge surface, the center of the opening (101a) is located on the side opposite the side in which the opening (100a) is provided.Type: ApplicationFiled: October 6, 2008Publication date: July 29, 2010Inventor: Eisuke Yamashita
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Patent number: 7764487Abstract: A display has a closed body, a display panel, an inactive propeller, an inactive magnet and a driving assembly. The closed body has an inner cavity and liquid. The display panel is mounted around by the closed body. The inactive propeller is mounted rotatably in the inner cavity and has multiple blades to agitate the liquid. The inactive magnet is mounted securely in the inactive propeller. The driving assembly is mounted on the closed body outside the inner cavity and has a power unit, a shaft and an active magnet. The active magnet is attached to the shaft and corresponds to the inactive magnet. With the magnetic force between the active and inactive magnets, the power is transmitted into the closed body without any physical contact. Therefore, the closed body does not require any waterproof structures and the liquid maintains clean and isolated from the outer environment.Type: GrantFiled: October 15, 2008Date of Patent: July 27, 2010Assignee: Hannspree, Inc.Inventors: Wen-Hung Huang, Chien-Kun Hsu
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Patent number: 7764344Abstract: A ruggedized, high brightness, liquid crystal display (LCD) unit having a thin display panel, a front cover glass faceplate and an improved backlight assembly is disclosed. The faceplate is bonded to the panel using an improved process to minimize panel deformation and the backlight assembly is configured with an array of selectively spaced light emitting diodes (LED's) adapted to provide a uniform high brightness display with a minimal quantity of LED's.Type: GrantFiled: July 12, 2007Date of Patent: July 27, 2010Inventors: Brian Yi, Eun Kyung Lee, Gene Huh
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Publication number: 20100182562Abstract: A display device comprises a display panel, a cooling unit cooling air in a casing containing the display panel, a fan unit generating an air flow in the casing, and a control unit controlling the cooling unit and the fan unit, and when the control unit deactivates the cooling unit, the control unit also deactivates the fan unit.Type: ApplicationFiled: January 19, 2010Publication date: July 22, 2010Applicant: SANYO ELECTRIC CO., LTD.Inventors: Tomonori YOSHIDA, Hidenori SATO, Hiroyuki UCHIDA, Shohei TAKAHASHI, Ryuji FUKAGAWA
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Publication number: 20100182559Abstract: An LCD includes a first substrate, a heating layer formed on the first substrate, an insulating layer having a first opening formed on the heating layer, at least one switching device, two contact pads formed on the insulating layer, and respectively electrically connected to the scan line and the data line, a capacitor, a bridge electrode formed in the first opening, a passivation layer covering the switching device and the capacitor, a pixel electrode formed on the passivation layer and electrically connected to the drain of the switching device, a second substrate having a common electrode disposed on the first substrate, and a liquid crystal layer. The source of the switching device is connected to the data line. The passivation layer has a plurality of second openings respectively exposing the contact pads and the bridge electrode, wherein the bridge electrode is electrically disconnected from the contact pads.Type: ApplicationFiled: March 29, 2010Publication date: July 22, 2010Inventors: Mao-Yi Chang, Chia-Tien Peng, Chih-Wei Chao, Chien-Sen Weng, Chao-Shun Liao
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Patent number: 7755738Abstract: An LCD device has an LCD panel having a peripheral region, a heating layer disposed on the LCD panel, and two first flexible printed circuits (FPCs) electrically connected to the heating layer, and adapted to transmit voltage to the heating layer so that the heating layer can generate heat. At least one of the FPCs has a wide portion and a narrow portion being fixed in the peripheral region of the LCD panel and being connected to the heating layer.Type: GrantFiled: August 17, 2007Date of Patent: July 13, 2010Assignee: AU Optronics Corp.Inventors: Mao-Yi Chang, Chia-Tien Peng, Chih-Wei Chao, Chien-Sen Weng, Chao-Shun Liao
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Patent number: 7755709Abstract: Disclosed is a liquid crystal display (LCD) device having gate and data driving elements with improved heat dissipation properties. The driving elements each have the following: a source and a drain electrode, each with contact holes that provide electrical contact with an active area formed on the driving element's substrate; multiple separate channels between the source and the drain; and a gate electrode formed crossing the multiple channels. Also formed are dummy contact holes that allow the metal of the electrodes to penetrate to a layer below the active layer without contacting it. The dummy contact hole provides a thermally conductive channel whereby heat that would otherwise build up in the channels, and degrade the performance of the driving element, is conducted through the dummy contact hole and radiated away by the electrode metal.Type: GrantFiled: May 18, 2009Date of Patent: July 13, 2010Assignee: LG Display Co., Ltd.Inventor: Seok Woo Lee
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Patent number: 7755715Abstract: A cooling device is provided, where an LED backlight can be efficiently cooled in order to suppress display unevenness caused by heat generated from the LED backlight. In addition, a display device including the cooling device is also provided. A display device is provided, where the LED backlight can be cooled by arranging a coolant pipe on a back surface side of the LED backlight and supplying a coolant to a coolant pipe. Further, a display device is provided, where cooling efficiency of the LED backlight can be more improved by arranging a thermal conductor between the LED backlight and the cooling device.Type: GrantFiled: December 22, 2006Date of Patent: July 13, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hajime Kimura, Hideaki Shishido
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Patent number: 7744223Abstract: An optical device includes: a light modulation element that modulates a luminous flux emitted from a light source; a casing that houses the light modulation element; a holding member that holds the light modulation element and exposes a part thereof to outside; a refrigerant housed in a housing space surrounded by the casing, the holding member and the light modulation element; and a convection start unit that is provided in the casing and causes convection of refrigerant.Type: GrantFiled: January 22, 2007Date of Patent: June 29, 2010Assignee: Seiko Epson CorporationInventors: Satoshi Kinoshita, Makoto Zakoji
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Patent number: 7724335Abstract: A display element according to the present invention is provided with a pair of substrates, at least one of which is transparent; a medium between the substrates, wherein optical anisotropy magnitude of the medium is changeable by and according to an electric field applied thereon; at least one pair of electrodes for applying, on the medium, the electric field substantially parallel to the substrates; and a shielding electrode overlapping at least a display portion of at least one of the substrates, and used for shielding the display element from static electricity.Type: GrantFiled: January 19, 2005Date of Patent: May 25, 2010Assignee: Sharp Kabushiki KaishaInventors: Koichi Miyachi, Seiji Shibahara, Iichiro Inoue, Shoichi Ishihara, Akihito Jinda, Kiyoshi Ogishima
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Patent number: 7710531Abstract: A liquid crystal display apparatus includes a light source, a light source drive circuit for switching the light source on and off, a heat release member for releasing heat generated by at least one of the light source drive circuit and the light source, and a heat transport member for transporting the heat to the heat release member. The light source drive circuit is connected to the heat release member through the heat transport member. The heat transport member has high heat conductivity so that a large part of the heat can be transferred to the heat release member through the heat transport member for a short time. Thus, the heat transport member prevents the heat from affecting components disposed near the light source drive circuit or the light source.Type: GrantFiled: February 15, 2006Date of Patent: May 4, 2010Assignee: DENSO CORPORATIONInventors: Kazumasa Kurokawa, Yoshimi Kondo, Hirokazu Shibata
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Patent number: 7703927Abstract: A liquid crystal projector apparatus has a liquid crystal unit having a liquid crystal panel for modulating light, an incident side polarizing plate and an exit side polarizing plate disposed in front of and behind the liquid crystal panel along the optical axis, respectively, a first holder member for holding the liquid crystal unit, a first heat exchanger disposed in close proximity to the first holder member for dissipating heat generated by the liquid crystal unit and then conducted to the first holder member using a coolant liquid which passes through a first channel formed inside the first heat exchanger, a pump for circulating the coolant liquid, and a radiator for cooling the coolant liquid.Type: GrantFiled: December 2, 2004Date of Patent: April 27, 2010Assignee: NEC Viewtechnology, Ltd.Inventor: Motoyasu Utsunomiya
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Patent number: 7697103Abstract: The present invention provides an image display device which includes the heat radiation structure with a high radiation effect without increasing the number of parts and requiring additional steps in the manufacture of the display device. A metal foil having a large area is formed on a COF film provided for mounting a driver chip on a display panel, and heat generated by the driver chip is led to the metal foil and is radiated.Type: GrantFiled: April 25, 2008Date of Patent: April 13, 2010Assignee: Hitachi Displays, Ltd.Inventor: Tatsuo Makishima
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Patent number: 7696693Abstract: A fluorescent lamp includes a tube filled with a discharge gas and a fluorescent material, a first external electrode covering an outer edge of the tube, the first external electrode having a tetragonal cap-like shape, and a second external electrode on an outer surface of the tube, the second external electrode contacting the first external electrode.Type: GrantFiled: December 29, 2005Date of Patent: April 13, 2010Assignee: LG Display Co., Ltd.Inventor: Dae-San Lim
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Publication number: 20100066937Abstract: There is provided a slim liquid crystal display unit having a large screen by providing a slim structure capable of sufficiently radiating the heat from a light source. The liquid crystal display unit according to the present invention includes: a liquid crystal panel; an optical guiding board installed on a rear face thereof; a pair of light source-mounted substrate disposed, opposing right and left side faces thereof; a light source mounted on the light source-mounted substrate; a metal frame connected on the opposite side to the optical guiding board of the light source-mounted substrate; a chassis member for supporting the optical guiding board and a reflection sheet group; and a thermal diffusion member fixed onto the metal frame along with the chassis member. The chassis member has a stepped portion in the vicinity of the light source. Between the stepped portion and the reflection sheet group, a thermal insulation member is attached.Type: ApplicationFiled: May 28, 2009Publication date: March 18, 2010Applicant: Hitachi, Ltd.Inventors: Yoshiharu Yamashita, Akitoshi Morishima, Katsunari Sato, Noriyo Nishijima, Shigeo Ohashi, Takeshi Miitsu, Hiroyoshi Ogura, Hiroki Hosono, Koichi Sato
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Patent number: 7679903Abstract: A display device includes: a frame that holds a display panel having a thin member and a light source that irradiates the display panel with light; and a cover that covers the frame. The display device further includes: a heat sink situated in the central portion in the width direction of the display panel in the frame and extending in and out of the frame; and a heat dissipation component provided in the cover and being in contact with the heat sink at a position outside the frame.Type: GrantFiled: April 15, 2008Date of Patent: March 16, 2010Assignee: Fujitsu LimitedInventors: Masaya Takayanagi, Masuo Ohnishi
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Publication number: 20100045913Abstract: A liquid crystal display includes a first substrate and a second substrate. A liquid crystal layer is located between the first and the second substrates. A first transparent heating layer is attached on the first substrate. A second transparent heating layer is attached on the second substrate. Each of the first and second transparent heating layers includes a plurality of carbon nanotubes.Type: ApplicationFiled: April 16, 2009Publication date: February 25, 2010Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Liang Liu, Kai-Li Jiang, Wei-Qi Fu, Shou-Shan Fan
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Publication number: 20100039582Abstract: The present invention provides a method of manufacturing a display module, the display module comprising a display panel and a backlight, The method includes the following steps: placing the display panel and the backlight into contact on a common contact area, the common contact area being defined as a fixation region of a contacting surface of the display panel coinciding with a contacting surface of the backlight, and applying a heat flow in the common contact area to create a local weld connection in the common contact area between the display panel and the backlight.Type: ApplicationFiled: August 12, 2009Publication date: February 18, 2010Applicant: TPO DISPLAYS CORP.Inventors: Marco PAULUSSEN, Ralph AMORY
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Patent number: 7663730Abstract: Disclosed is a heat radiator which is provided in a transmissive display unit in which a plurality of rows of light emitting arrays constituted by arranging a plurality of light emitting units including a plurality of LEDs mounted on a wiring substrate are arranged on the back surface side of a transmissive display panel, and illuminating light emitted from the LEDs is irradiated onto the display panel. In the heat radiator, a radiation plate (28) supporting LEDs (18) and a heat sink (37) constitute an overlap area (57) with a back panel (13) interposed therebetween and are integrated with each other through the back panel by a fixing member in the overlap area. The back panel, radiation plate, and heat sink are firmly mounted to each other, achieving effective heat radiation.Type: GrantFiled: August 15, 2005Date of Patent: February 16, 2010Assignee: Sony CorporationInventor: Hirokazu Shibata
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Publication number: 20100033654Abstract: A liquid crystal display device includes a panel, a heater, and a temperature detector. The panel includes substrates electrodes and liquid crystal. The electrodes and the liquid crystal are disposed between the substrates. The heater has a transparent heating member, and the heating member emits heat by being supplied with electricity. At least a part of the heating member of the heater is located to overlap with a display area of the panel in a thickness direction of the substrates. A temperature detecting portion of the temperature detector and the heating member of the heater are located adjacent to each other.Type: ApplicationFiled: August 3, 2009Publication date: February 11, 2010Applicant: DENSO CORPORATIONInventor: Naoyuki AOKI
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Patent number: 7643103Abstract: A backlight module and a liquid crystal display (LCD) both have a heat conductive structure for reducing the non-uniformity phenomenon of display. The backlight module comprises a frame, a reflective sheet, a heat-conductive plate, and a circuit board, wherein the frame has a bottom portion and at least one substantially step-typed through hole is formed therein. The reflective sheet is disposed on the inner surface of the bottom portion, and the heat-conductive plate is disposed in the step-typed through hole, and is spaced from the reflection sheet at a predetermined distance. The circuit board is disposed on the outer surface of the bottom portion of the frame, and has at least one electrical component that is received in the substantially step-typed through hole.Type: GrantFiled: May 21, 2007Date of Patent: January 5, 2010Assignee: AU Optronics CorporationInventors: Chih-Liang Pan, Chun-Yen Chang, Han-Chang Cheng
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Publication number: 20090316103Abstract: A liquid crystal display includes a display section performing display using a liquid crystal, a substrate disposed to face a bottom surface of the display section and having a circuit for driving the liquid crystal mounted thereon, and a heat diffusing section disposed in contact with the bottom surface of the display section and a top surface of the substrate and having thermal conductivity higher than the thermal conductivity of air.Type: ApplicationFiled: September 1, 2009Publication date: December 24, 2009Applicant: FUJITSU LIMITEDInventors: Masaki Nose, Hisashi Yamaguchi