WO2004027315A1 - 照明ユニット及びそれを用いた液晶表示装置 - Google Patents
照明ユニット及びそれを用いた液晶表示装置 Download PDFInfo
- Publication number
- WO2004027315A1 WO2004027315A1 PCT/JP2002/009595 JP0209595W WO2004027315A1 WO 2004027315 A1 WO2004027315 A1 WO 2004027315A1 JP 0209595 W JP0209595 W JP 0209595W WO 2004027315 A1 WO2004027315 A1 WO 2004027315A1
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- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- crystal display
- light source
- light
- housing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
Definitions
- the present invention relates to a lighting unit and a liquid crystal display device using the same.
- Image display devices installed in information devices such as notebook personal computer processors and other image devices such as portable TVs, video movies, car navigation systems and other video devices. In many cases, these imaging devices are driven by a built-in primary or secondary battery, so the power consumption is extremely low to ensure sufficient operation time of the imaging devices in such cases. Liquid crystal display devices having such characteristics are widely used.
- the liquid crystal display device is, for example, a two-transparent glass substrate on which a drive signal supply electrode composed of a conductive transparent thin film and an alignment film are laminated so that the laminated surfaces face each other.
- the liquid crystal is injected between the two glass substrates, the liquid crystal is injected, and the liquid crystal is sealed.Then, a polarizing plate is provided outside the two glass substrates, and the driving signal input to the driving signal supply electrode is provided.
- a liquid crystal display panel that displays an image by changing the light transmittance according to the light; a lighting unit that is arranged behind the liquid crystal display panel and supplies light to the liquid crystal display panel; What is constituted including a circuit board for driving a liquid crystal display panel and the like.
- Fig. 8 shows a liquid with a conventional edge-lighted lighting unit.
- 1 shows an example of a cross section of a crystal display device.
- the liquid crystal display device L is a liquid crystal display panel with the display surface 1a on which characters and images are displayed facing forward.
- the non-display area of the display surface 1a of the LCD panel 1 is the LCD panel.
- a front frame FC arranged so as to form an upper surface and a lower surface of an end surface of the liquid crystal display device L while being concealed at a predetermined interval from the liquid crystal display device L, and a rear frame disposed at a rear side of the liquid crystal display panel 1. It has a lighting unit UT for supplying light to the liquid crystal display panel, and a back cover RC arranged to cover the entire rear surface of the lighting unit UT.
- the lighting unit UT is a light guide plate 3 made of a transparent synthetic resin plate such as an acrylic resin or the like emitted from the main surface while guiding light incident from the end surface in a direction parallel to the main surface.
- a light source 2 such as a fluorescent discharge tube arranged near the end face 3a of the light guide plate 3 along the end face 3a and substantially parallel to the end face 3a.
- a reflection sheet 5 composed of a white high-reflectance synthetic resin sheet for reflecting light emitted from the rear main surface of the light guide plate 3 toward the light guide plate 3 again.
- the reflector 4 and the light guide plate 3 are supported by the upper, lower, and front side surfaces of the reflector 4 and the outer peripheral portion of the front main surface of the light guide plate 3, and the liquid crystal display panel 1 and the The light plate 3 is fixed at a predetermined distance, and the front side frame FC is set at a predetermined position to form a gap 7a. And a housing 1 0 consisting of poly carbonate Natick preparative resin used to constant.
- the light emitted from the light source 2 is efficiently introduced into the end face 3 a of the light guide plate 3 by the reflector 4, and is introduced into the end face 3 a of the light guide plate 3.
- the reflected light is guided by the light guide plate 3 in a direction away from the light source 2 and reflected by the reflection sheet 5.
- the light is uniformly emitted from the front side of the light guide plate 3, and the emitted light is incident on the liquid crystal display panel 1.
- an image is displayed on the liquid crystal display panel 1 by changing the light transmittance according to the drive signal input to the drive signal supply electrode.
- liquid crystal display device mounted to realize a light and thin image device has been required to be light and thin.
- liquid crystal display devices used in video equipment such as monitors are required to have higher brightness in addition to the demand for lighter and thinner devices, and to increase the screen size.
- the liquid crystal display device has an edge-light type lighting unit which is suitable for light weight, thinness, high brightness, and large screen, in which a tubular light source such as a fluorescent discharge tube is arranged on the end face of the lighting unit. Liquid crystal display devices using are widely used.
- the light source is covered by a reflector, housing, back cover, etc.
- a cooling device is arranged near the light source to cool the periphery of the light source, the size of the liquid crystal display device will increase as the volume of the device increases, making it difficult to reduce the weight and thickness of the imaging equipment.
- the present invention has been made to solve the above-described problems, and forms a path for releasing heat generated from a light source in a lighting unit, and transfers heat generated from the light source during operation of a device to a liquid crystal.
- the brightness of the liquid crystal display device can be kept constant during operation of the device, and the lighting unit can be prevented from adversely affecting the life of the light source.
- a liquid crystal display device using the same By emitting the light to the outside of the display device, the brightness of the liquid crystal display device can be kept constant during operation of the device, and the lighting unit can be prevented from adversely affecting the life of the light source. And a liquid crystal display device using the same.
- the lighting unit includes a light guide plate that guides light incident from an end surface along a main surface; a light source arranged along the end surface of the light guide plate; A lighting unit comprising: a reflector surrounding the light source so as to reflect light emitted from the light source toward an end face of the light guide plate; and a housing arranged so as to surround at least the reflector. An opening is formed in the housing so as to penetrate toward the reflector.
- the heat generated from the light source can be released to the outside of the liquid crystal display device through the opening provided in the housing, and the temperature around the light source does not become high.
- the problem that the light emission intensity of the light source decreases with time and the life of the light source is shortened can be improved.
- the housing may be provided with a concave portion or a convex portion, and the opening may be formed on at least one of the side surfaces of the concave portion or the convex portion.
- the housing is folded inward so that a predetermined area is supported by a part of the outer periphery as a fulcrum and the remaining part is cut off.
- a bent portion formed by bending may be formed, and a step formed by the bent portion may form the opening.
- the lighting unit includes: a light guide plate for guiding light incident from an end face along a main surface; a light source arranged along the end face of the light guide plate; and a light guide for emitting light emitted from the light source.
- a lighting unit including a reflector surrounding the light source so as to reflect toward an end face of the light plate, and a housing arranged so as to surround at least the reflector, wherein the housing is insulative and It is made of a heat conductive resin.
- the heat generated from the light source can be released to the outside of the liquid crystal display device by the thermal conductivity of the housing, and the temperature around the light source does not become high. And the life of the light source is shortened.
- a liquid crystal display device displays an image by changing the light transmittance according to the illumination unit according to claim 1 or 4 and an input image signal.
- the liquid crystal display panel is arranged on the front surface of the lighting unit.
- FIG. 1 is a cross-sectional view schematically illustrating a configuration of a liquid crystal display device according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view schematically illustrating a configuration of a liquid crystal display device according to a second embodiment of the present invention.
- FIG. 3 is a perspective sectional view schematically showing a configuration of a liquid crystal display device according to a second embodiment of the present invention.
- FIG. 4 is a cross-sectional view schematically illustrating a configuration of another liquid crystal display device according to Embodiment 2 of the present invention. '
- FIG. 5 is a perspective sectional view schematically showing a configuration of another liquid crystal display device according to the second embodiment of the present invention.
- FIG. 6 is a cross-sectional view schematically illustrating a configuration of a liquid crystal display device according to a third embodiment of the present invention.
- FIG. 7 is a perspective sectional view schematically showing a configuration of a liquid crystal display device according to a third embodiment of the present invention.
- FIG. 8 is a cross-sectional view showing a configuration of a liquid crystal display device using a conventional edge light type illumination unit.
- Embodiment 1 of the present invention is directed to a lighting unit capable of releasing heat generated from a light source to the outside of a liquid crystal display device through a reflector and an opening provided in a housing, and a liquid crystal display device using the same. It shows a first configuration example.
- FIG. 1 is a cross-sectional view schematically showing an illumination unit according to the present embodiment and a liquid crystal display device using the same.
- the liquid crystal display device L has a pair of housings 10 and 10 that are arranged to face each other in the up-down direction.
- the housing 10 includes a rectangular plate-shaped main body 10a disposed horizontally, and a rectangular plate-shaped partition wall 1 extending vertically from a position a predetermined distance behind the front end of the main body 10a. 0 b.
- a rectangular back cover RC is disposed, and the pair of housings 10 and 10 and the back cover RC form a housing 200. Is formed.
- the rear wall and the side wall of the housing 200 are constituted by the back cover RC and the pair of housings 10 and 10, respectively.
- the main bodies 10 & 10a of the housings 10 and 10 and the partition walls 10b and 10b there is a rectangular flat light guide plate. Is arranged.
- the light guide plate 3 is disposed such that the upper end and the lower end of the front surface thereof are in contact with the partition wall 10 b of the housing 10, and a reflection shutter is provided between the rear surface of the light guide plate 3 and the back cover RC. 5 is located.
- Two light sources 2 such as fluorescent discharge tubes are arranged so as to extend in the left-right direction along the upper end surface and the lower end surface of the light guide plate 3.
- a reflector 4 is provided so as to surround the two light sources 2.
- the reflector 4 has a U-shaped cross section, the tip of which abuts against the end face of the light guide plate 3 and the end face of the reflection sheet 5, and whose outer face has the rear cover RC and the housing 10. It is arranged so as to be in contact with the main body 10a and the partition 10b.
- the light guide plate 3 and the reflectors 4 and 4 are held by the housing 200 (the back cover RC and the main body 10a and the partition wall 10b of the housing 10).
- a liquid crystal display panel 1 is disposed on the front surfaces of the partition walls 10b, 10b of the pair of housings 10, 10.
- the liquid crystal display panel 1 is fixed to the housings 10 and 10 by fixing means (not shown).
- From the partition wall 1 O b of the housing 10 to the front end of the main body 10 a Is set to a value substantially equal to the thickness of the liquid crystal display panel 1.
- a pair of front sides having an L-shaped cross-section so as to cover the upper and lower ends of the front surface of the liquid crystal display panel 1 and the outer surfaces of the main bodies 10a, 10a of the pair of housings 10,10.
- Frame FC is installed.
- the front side frame FC is arranged so as to have a small space between the front side frame FC and the liquid crystal display panel 1 and to have a predetermined gap 7a between the main body 10a of the housing 10 and the main body 10a of the housing 10.
- openings S 1 and S 1 formed of, for example, circular through holes are provided in the main bodies 10 a and 10 a of the housings 10 and 10.
- the light source 2 is driven by a high-frequency alternating current of 40 to 100 kHz to emit light, and the light emitted from the light source 2 is a resin film having a high reflectance.
- 4 is introduced into the end face 3a of the light guide plate 3 by the reflector 4 made of a metal film such as silver, aluminum, or the like, and the light introduced into the end face 3a of the light guide plate 3 is separated from the light source 2 by the light guide plate 3.
- the light is guided in the same direction, is reflected by the reflection sheet 5 made of a high-reflectance resin film, and is uniformly emitted from the front side of the light guide plate 3.
- Light is incident on panel 1.
- an image is displayed on the liquid crystal display panel 1 by changing the light transmittance in accordance with the drive signal input to the drive signal supply electrode.
- the housing 10 is usually made of an insulating resin material (ie, a heat insulating material). This is to insulate the light source 2 from the outside in consideration of safety. Therefore, when the liquid crystal display device L operates, the heat generated from the light source 2 installed inside the lighting unit UT is confined in the vicinity of the light source 2 by the reflector 4 and the end face 3a of the light guide plate 3. It is. Therefore, the light source 2 finally reaches a high temperature state corresponding to the power consumption of the light source 2, and the light source 2 When the temperature is maintained, the light emission intensity of the light source 2 decreases with time, and the life of the light source 2 is shortened.
- an insulating resin material ie, a heat insulating material
- the reflector 4 needs to be cooled in order to keep the brightness of the liquid crystal display device L constant during operation of the device and not to adversely affect the life of the light source 2.
- a cooling device is arranged in the vicinity of the reflector 4 to cool the reflector 4, the size of the liquid crystal display device L increases with the increase in the device capacity. There is a problem that it becomes difficult.
- the power consumption of the entire imaging device increases, so the load on the built-in primary battery or the secondary battery increases, and therefore, the original purpose of the imaging device is reduced. There is also a problem that sufficient operation time is hindered.
- a circular opening S 1 penetrating toward the reflector 4 is formed in the housing 10.
- the heat of the reflector 4 is released from the surface of the reflector 4
- the liquid can be discharged to the outside of the liquid crystal display device L via the section S 1 and further via the gap 7 a.
- the heat of the reflector 4 is transmitted from the surface of the reflector 4 through the opening S1 to the front frame FC via the gap 7a, and is transmitted to the front frame FC. It can be released outside the device L.
- the temperature of the reflector 4 becomes an equilibrium temperature due to heating by the heat emitted from the light source 2 and heat radiation through the opening S1 and the gap 7a, etc. This is because a part of the heat generated from the light source 2 moves to the opening S1 via the reflector 4, and is further released to the outside of the liquid crystal display device L via the gap 7a. Can be understood. As a result, the temperature of the light source 2 does not rise to a temperature corresponding to the power consumption of the light source 2, and The light emission intensity becomes constant, so that the luminance of the liquid crystal display device L can be kept constant. In addition, it is possible to prevent the life of the light source 2 from being adversely affected.
- the shape of the opening S 1 is not limited to a circular shape, but may be any shape and size.
- the number of openings S 1 may be set arbitrarily.
- the opening S1 may be provided in any part of the main body 10a.
- the distribution of the openings S 1 is not limited to a row, and may be an arbitrary distribution.
- Embodiment 2 of the present invention is directed to a lighting unit capable of releasing heat generated from a light source to the outside of a liquid crystal display device through a reflector and an opening provided in a housing, and a liquid crystal display device using the same.
- FIG. 2 is a cross-sectional view schematically showing an illumination unit according to the present embodiment and a liquid crystal display device using the same.
- FIG. 3 is a perspective sectional view schematically showing the illumination unit according to the present embodiment and a liquid crystal display device using the illumination unit.
- the main body 10a of the housing 10 is formed to be thin, and a concave portion 101 is formed in the main body 10a in the longitudinal direction of the housing 10. It is formed at a predetermined pitch in the direction (left-right direction).
- One end of the concave portion 101 formed at both ends of the housing 10 is open.
- An opening S2 is provided in a portion (here, a rear portion) of the side wall (step surface) of the concave portion 101.
- the bottom wall 101a of the concave portion 101 is in contact with the end face of the reflector 4, whereby the reflector 4 is positioned in the vertical direction.
- Other points are the same as in the first embodiment.
- the light intensity of the light source becomes constant without increasing the temperature of the light source to a temperature corresponding to the power consumption of the light source, and therefore, the luminance of the liquid crystal display device becomes constant. It is possible to keep In addition, it is possible to prevent the life of the light source from being adversely affected. Further, by forming the main body 10a of the housing 10 to be thin, it is possible to suppress an increase in the vertical dimension of the lighting device UT due to the provision of the concave portion 101. Furthermore, since the opening S2 has a small opening size, it is possible to prevent dust and the like outside the liquid crystal display device from adhering to the reflector.
- the shape of the recess 101 is not limited to a rectangle, but may be any shape.
- the opening S2 may be provided at any part of the side wall of the recess 101.
- the distribution of the concave portions 101 is not limited to a row shape, and can be an arbitrary distribution.
- a concave portion is provided in the main body 10a of the housing 10.
- the present invention is not limited to the concave portion, and may be a convex portion.
- another illumination unit according to the present embodiment in the case where a projection is provided on the main body 10a of the housing 10 and a liquid crystal display device using the same will be described with reference to FIGS. 4 and 5. Will be explained.
- FIG. 4 is a cross-sectional view schematically showing another illumination unit according to the present embodiment and a liquid crystal display device using the same.
- FIG. 5 is a perspective sectional view schematically showing another illumination unit according to the present embodiment and a liquid crystal display device using the same.
- a main body 10a of a housing 10 is formed to be thin and a convex portion 102 is formed on the main body 10a.
- a convex portion 102 is formed on the main body 10a.
- Both ends of housing 10 One end of the convex portion 102 formed in the portion is open.
- An opening S2 is provided in a part of the side wall (step surface) of the convex part 102 (the rear part in this case).
- the body 10a of the housing 10 is in contact with the end face of the reflector 4, whereby the reflector 4 is positioned vertically. Other points are the same as in the present embodiment.
- the shape of the protrusion 102 is not limited to a rectangle, but may be any shape. Further, the opening S 2 may be provided at any part of the side wall of the projection 102. Further, the distribution of the convex portions 102 is not limited to a line shape, and may be an arbitrary distribution.
- Embodiment 3 of the present invention shows a third configuration example of a lighting unit and a liquid crystal display device capable of releasing heat accumulated in a peripheral portion of a light source to the outside of the liquid crystal display device via a reflector. Things.
- FIG. 6 is a cross-sectional view schematically showing an illumination unit according to the present embodiment and a liquid crystal display device using the same.
- FIG. 7 is a perspective sectional view schematically showing an illumination unit according to the present embodiment and a liquid crystal display device using the same.
- the opening forming region 10 3 In a predetermined region (hereinafter, referred to as an opening forming region) 103 of the main body 10 a of the housing 10, the opening forming region 10 3 3 Inner side wall (hereinafter referred to as a bent portion) 10 3 It is bent inward so that one end of a is a fulcrum and the remaining portion is cut, whereby the bent portion is formed. Opening between the periphery of 103 a and the rest of the opening forming area 103 S 3 is formed. Further, the tip of the bent portion 103a is in contact with the end face of the reflector 4, whereby the reflector 4 is positioned vertically. The other points are the same as in the second embodiment.
- the liquid crystal display panel has been described as an example of the image display element
- the liquid crystal display device has been described as an example of the image display device.
- the housing 10 is provided with the opening S 1, S 2, or S 3 .
- the housing 10 may be made of a resin material having good insulation and heat conductivity. Good. According to this, the temperature in the vicinity of the light source 2 can be reduced. Examples of such a resin material include high-density polyethylene (thermal conductivity: 0.6 WZm * K) of a thermoplastic resin.
- the lighting unit according to the present invention is useful as a lighting unit for consumer and industrial liquid crystal display devices requiring a thin display unit.
- the liquid crystal display device according to the present invention can be used as an information device such as a notebook personal computer processor for consumer or industrial use requiring a thin display unit, or a portable television or a video movie. First, it is useful as an image display device for car navigation systems and the like.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/009595 WO2004027315A1 (ja) | 2002-09-19 | 2002-09-19 | 照明ユニット及びそれを用いた液晶表示装置 |
US10/528,078 US7367706B2 (en) | 2002-09-19 | 2002-09-19 | Illumination unit and liquid crystal display comprising it |
AU2002330310A AU2002330310A1 (en) | 2002-09-19 | 2002-09-19 | Illumination unit and liquid crystal display comprising it |
JP2004537512A JPWO2004027315A1 (ja) | 2002-09-19 | 2002-09-19 | 照明ユニット及びそれを用いた液晶表示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/009595 WO2004027315A1 (ja) | 2002-09-19 | 2002-09-19 | 照明ユニット及びそれを用いた液晶表示装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004027315A1 true WO2004027315A1 (ja) | 2004-04-01 |
Family
ID=32012222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/009595 WO2004027315A1 (ja) | 2002-09-19 | 2002-09-19 | 照明ユニット及びそれを用いた液晶表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7367706B2 (ja) |
JP (1) | JPWO2004027315A1 (ja) |
AU (1) | AU2002330310A1 (ja) |
WO (1) | WO2004027315A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007183634A (ja) * | 2006-01-04 | 2007-07-19 | Samsung Electronics Co Ltd | 液晶表示装置 |
JP2007227374A (ja) * | 2006-02-21 | 2007-09-06 | Samsung Electro Mech Co Ltd | Ledバックライトユニット |
JP2008122894A (ja) * | 2006-11-09 | 2008-05-29 | Samsung Sdi Co Ltd | 携帯用表示装置 |
EP2450617A1 (en) * | 2009-07-03 | 2012-05-09 | Sharp Kabushiki Kaisha | Display device |
WO2012128064A1 (ja) * | 2011-03-18 | 2012-09-27 | シャープ株式会社 | 照明装置、表示装置、及びテレビ受信装置 |
WO2019163126A1 (ja) * | 2018-02-26 | 2019-08-29 | 三菱電機株式会社 | 冷蔵庫 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4590283B2 (ja) * | 2004-05-21 | 2010-12-01 | シャープ株式会社 | バックライトユニット及びそれを備えた液晶表示装置 |
TW200720795A (en) * | 2005-11-25 | 2007-06-01 | Innolux Display Corp | Liquid crystal display |
US8599108B2 (en) * | 2007-12-11 | 2013-12-03 | Adti Media, Llc140 | Large scale LED display |
WO2010021188A1 (ja) * | 2008-08-22 | 2010-02-25 | シャープ株式会社 | 表示装置及びテレビ受信装置 |
KR101593948B1 (ko) * | 2009-12-09 | 2016-02-17 | 삼성전자 주식회사 | 디스플레이장치 |
US8579454B2 (en) * | 2010-06-30 | 2013-11-12 | Sharp Kabushiki Kaisha | Lighting device, display device and television device |
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TWI257509B (en) * | 2003-08-27 | 2006-07-01 | Au Optronics Corp | Direct backlight module |
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2002
- 2002-09-19 JP JP2004537512A patent/JPWO2004027315A1/ja active Pending
- 2002-09-19 WO PCT/JP2002/009595 patent/WO2004027315A1/ja active Application Filing
- 2002-09-19 US US10/528,078 patent/US7367706B2/en not_active Expired - Fee Related
- 2002-09-19 AU AU2002330310A patent/AU2002330310A1/en not_active Abandoned
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JPH0541581A (ja) * | 1991-08-05 | 1993-02-19 | Fujitsu Ltd | 電子機器のモールド成形ケース |
JP2001185867A (ja) * | 1999-12-24 | 2001-07-06 | Meiji Natl Ind Co Ltd | 放熱用ダクト |
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Cited By (13)
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JP2007183634A (ja) * | 2006-01-04 | 2007-07-19 | Samsung Electronics Co Ltd | 液晶表示装置 |
JP4675879B2 (ja) * | 2006-01-04 | 2011-04-27 | 三星電子株式会社 | 液晶表示装置 |
JP2007227374A (ja) * | 2006-02-21 | 2007-09-06 | Samsung Electro Mech Co Ltd | Ledバックライトユニット |
JP4503029B2 (ja) * | 2006-02-21 | 2010-07-14 | 三星電機株式会社 | Ledバックライトユニット |
US7784989B2 (en) | 2006-02-21 | 2010-08-31 | Samsung LED Co. Ltd. | LED backlight unit including light guide plate with fixing means |
US7924361B2 (en) | 2006-11-09 | 2011-04-12 | Samsung Mobile Display Co., Ltd. | Portable display device |
JP4612002B2 (ja) * | 2006-11-09 | 2011-01-12 | 三星モバイルディスプレイ株式會社 | 携帯用表示装置 |
JP2008122894A (ja) * | 2006-11-09 | 2008-05-29 | Samsung Sdi Co Ltd | 携帯用表示装置 |
EP2450617A1 (en) * | 2009-07-03 | 2012-05-09 | Sharp Kabushiki Kaisha | Display device |
EP2450617A4 (en) * | 2009-07-03 | 2014-06-18 | Sharp Kk | DISPLAY DEVICE |
WO2012128064A1 (ja) * | 2011-03-18 | 2012-09-27 | シャープ株式会社 | 照明装置、表示装置、及びテレビ受信装置 |
WO2019163126A1 (ja) * | 2018-02-26 | 2019-08-29 | 三菱電機株式会社 | 冷蔵庫 |
JPWO2019163126A1 (ja) * | 2018-02-26 | 2020-12-03 | 三菱電機株式会社 | 冷蔵庫 |
Also Published As
Publication number | Publication date |
---|---|
AU2002330310A1 (en) | 2004-04-08 |
US7367706B2 (en) | 2008-05-06 |
JPWO2004027315A1 (ja) | 2006-01-19 |
US20060104086A1 (en) | 2006-05-18 |
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