WO2013115211A1 - Dispositif d'affichage et récepteur de télévision - Google Patents

Dispositif d'affichage et récepteur de télévision Download PDF

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Publication number
WO2013115211A1
WO2013115211A1 PCT/JP2013/051969 JP2013051969W WO2013115211A1 WO 2013115211 A1 WO2013115211 A1 WO 2013115211A1 JP 2013051969 W JP2013051969 W JP 2013051969W WO 2013115211 A1 WO2013115211 A1 WO 2013115211A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabinet
display device
display panel
light
main body
Prior art date
Application number
PCT/JP2013/051969
Other languages
English (en)
Japanese (ja)
Inventor
克己 篠原
守 谷畑
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2013115211A1 publication Critical patent/WO2013115211A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the present invention relates to a display device that irradiates light from a light source onto a display panel via a light guide plate and a television receiver that displays an image on the display device based on television broadcasting, and in particular, the light from the light source is directly applied to the display panel. It relates to what prevents intrusion.
  • the liquid crystal display device is configured to emit light from a light source and display an image on a liquid crystal display panel that displays an image disposed inside the cabinet.
  • edge-light type liquid crystal display devices have been manufactured in order to further reduce power consumption and reduce thickness.
  • a light guide plate is provided facing the back surface of the liquid crystal display panel, a light source is provided at the peripheral edge of the light guide plate, and light from the light source is emitted to the liquid crystal display panel through the light guide plate.
  • the light emitted from the light source diffuses, some light may directly enter the liquid crystal display panel without passing through the light guide plate, or may leak from the gap between the liquid crystal display panel and the cabinet.
  • Patent Document 1 discloses a liquid crystal display device in which a reflection plate extending to an edge portion of a light guide plate is provided around a fluorescent tube as a light source, and a light shielding member is provided between the reflection plate and the light guide plate. Since the progress of the diffused light is hindered by the light shielding member, light leakage can be prevented.
  • the light shielding member extends along the edge portion of the light guide plate, and is attached to the reflection plate and the light guide plate with a double-sided tape.
  • the operation of attaching the light shielding member to the reflection plate and the light guide plate via the double-sided tape requires a long time, and the manufacturing efficiency of the liquid crystal display device decreases.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a display device to which a light shielding member can be attached in a short time and a television receiver including the display device.
  • the display device includes a display panel for displaying an image, a light guide plate facing the display panel, a frame-shaped cabinet surrounding the light guide plate and the display panel, and the light guide plate in the cabinet.
  • a display device including a light source disposed around, and provided in the cabinet includes a light shielding member that blocks light from the light source to the display panel, and an engaging portion that engages with the cabinet has the light shielding.
  • An engaged portion engaged with the engaging portion is provided in the cabinet, and the engaged portion is a groove formed along a circumferential direction of the cabinet, and the light shielding member Has a main body portion extending along the groove, and protrudes toward the cabinet side from a long side portion of the main body portion, and the engaging portion is attached to the cabinet.
  • a pawl portion formed in the end portion, the pawl portion is Yes so as to engage said groove, characterized in that are holes in portions corresponding to the pawl portion provided in the main body portion.
  • the display device has a rail shape, a mounted portion to which the mounting portion is mounted is connected to the cabinet, and the groove is formed in a connecting portion of the mounted portion and the cabinet. .
  • a driving circuit for driving the display panel is provided at an edge portion of the display panel, and a notch or a hole is provided in a portion corresponding to the driving circuit in the main body.
  • the display device is characterized in that a positioning recess for positioning the light-shielding member is provided in the cabinet, and a positioning projection for locking to the positioning recess is provided in the main body.
  • the display device according to the present invention is characterized in that the positioning recess and the positioning protrusion have a lattice shape or a cross shape.
  • a television receiver includes any one of the display devices described above and a receiving unit that receives a television broadcast, and an image is displayed on the display device based on the television broadcast received by the receiving unit. Is displayed.
  • the light shielding member is provided with the engaging portion
  • the engaged portion is provided in the cabinet surrounding the light guide plate and the display panel.
  • the claw portion provided on the light shielding member is engaged with the groove formed in the cabinet, so that the light shielding member can be mounted in a short time.
  • a hole is provided in the main body to increase flexibility, and the claw is easily engaged with the groove.
  • a groove is formed in the attachment portion and the connecting portion of the cabinet. Since the groove is formed along the rail-shaped attached portion, the range of the groove is relatively large. Therefore, the nail is easily locked in the groove.
  • the drive circuit is positioned in the notch or the hole, and interference between the light shielding member and the drive circuit is avoided.
  • the positioning projection of the main body is locked in the positioning recess provided in the cabinet, and the light shielding member is easily and reliably positioned with respect to the cabinet.
  • the lattice shape or the cross shape functions as a mark, and the operator easily recognizes the position of the positioning protrusion.
  • the light shielding member is provided with the engaging portion, and the light guide plate and the cabinet surrounding the display panel are provided with the engaged portion.
  • the operator can attach the light shielding member to the cabinet simply by engaging the engaging portion with the engaged portion, and can complete the attaching operation in a short time.
  • FIG. 4 is an enlarged view of a portion indicated by A in FIG. 3. It is a perspective view which briefly shows the supporting member seen from back.
  • FIG. 6 is an enlarged view of a portion indicated by B in FIG. 5.
  • FIG. 4 is a partially enlarged perspective view schematically showing one end portion of a support member viewed from the front.
  • FIG. 7 is a schematic cross-sectional view taken along line VIII-VIII shown in FIG. 6.
  • FIG. 7 is a schematic cross-sectional view taken along line XI-XI shown in FIG. 6.
  • FIG. 7 is a schematic cross-sectional view taken along line XX shown in FIG. 6. It is a perspective view which briefly shows the lower part and support member of the front cabinet which attached the display panel.
  • FIG. 9 is a schematic enlarged vertical sectional view of a television receiver corresponding to FIG. 8.
  • FIG. 10 is a partially enlarged vertical cross-sectional view of a television receiver corresponding to FIG. 9.
  • FIG. 11 is a partially enlarged vertical cross-sectional view of a television receiver corresponding to FIG. 10.
  • FIG. 1 is a perspective view schematically showing a television receiver.
  • up, down, left and right front and back are shown with arrows in the figure.
  • reference numeral 1 denotes a television receiver.
  • the television receiver 1 is disposed in the display device 100 for displaying an image and broadcast waves (TV) from an antenna (not shown). John broadcast) and a decoder 300 that is disposed in the display device 100 and decodes the encoded broadcast wave.
  • the television receiver 1 decodes the broadcast wave received by the tuner 200 by the decoder 300 and displays an image on the display device 100 based on the decoded information.
  • the tuner 200 and the decoder 300 may be provided outside the display device 100 and connected to the display device 100.
  • the display device 100 includes a rectangular display panel 10 having a liquid crystal, and the display panel 10 is configured to control the voltage applied to the liquid crystal to adjust the light transmittance.
  • the display panel 10 is accommodated vertically in the front cabinet 20 and the rear cabinet 30 arranged in the front-rear direction.
  • the front cabinet 20 has a rectangular frame shape, and has a rectangular opening 20a at the center thereof.
  • the front cabinet 20 is made of, for example, an aluminum member.
  • the rear cabinet 30 has a rectangular tray shape with the front side open, and is made of, for example, an electrogalvanized steel sheet.
  • the vertical and horizontal dimensions of the front cabinet 20 and the rear cabinet 30 are substantially the same, and the peripheral portions of each other face each other.
  • the vertical and horizontal dimensions of the display panel 10 are slightly larger than the opening 20 a, and the peripheral portion of the display panel 10 faces the inner edge portion of the front cabinet 20.
  • FIG. 2 is an exploded perspective view schematically showing the front cabinet 20, the display panel 10, the support member 50 (light shielding member), the light guide plate 60, and the LED (Light Emitting Diode) unit 70.
  • a plurality of support members 50 that support the light guide plate 60 are provided around the display panel 10.
  • the support member 50 is made of a black synthetic resin material, and is provided in the front cabinet 20 along the left and right edge portions and the lower edge portion of the display panel 10.
  • a rectangular light guide plate 60 is provided on the rear side of the support member 50, and the light guide plate 60 faces the rear surface of the display panel 10.
  • a plurality of optical sheets 61 are provided on the front surface of the light guide plate 60 (see FIGS. 12 to 14 described later).
  • the LED unit 70 includes an L-shaped heat sink 71, a substrate 72 fixed to one surface of the heat sink 71, and a plurality of LEDs 73 mounted on the substrate 72 (see FIGS. 12 to 14).
  • the heat radiating plate 71 is disposed in the front cabinet 20 so that one end of the L shape faces the front side and the other end faces the lower side. At one end, a notch 71a is formed at an appropriate interval.
  • the notch 71a is provided at a position corresponding to the drive circuit 12 described later (see FIG. 13).
  • the LED unit 70 is provided below the light guide plate 60 so that the LED 73 faces the lower surface of the light guide plate 60.
  • FIG. 3 is a perspective view showing the front cabinet 20 viewed from the rear
  • FIG. 4 is an enlarged view of a portion indicated by A in FIG.
  • the front cabinet 20 includes a front portion 21 parallel to the display panel 10 and a protruding portion 26 that protrudes rearward from the front portion 21 and is substantially perpendicular to the front portion 21 (see FIGS. 12 to 14).
  • An attached portion 22 to which the support member 50 is attached is provided on the rear surface of the front portion 21.
  • the attached portion 22 has a rail shape parallel to the edge portion of the opening 20 a and is provided over the entire circumference of the front portion 21.
  • the attached portion 22 is integrally connected to the front portion 21.
  • grooves 25 and 25 parallel to the mounted portion 22 are provided in the connecting portion with the front portion 21 (see FIGS. 12 to 14).
  • two positioning recesses 24, 24 that are engaged with positioning protrusions 56, which will be described later, are juxtaposed on the left and right at the center in the left-right direction at the lower portion of the attached portion 22.
  • FIG. 5 is a perspective view schematically showing the support member 50 as viewed from the rear
  • FIG. 6 is an enlarged view of the portion indicated by B in FIG. 5
  • FIG. 7 is a schematic view of one end of the support member 50 as viewed from the front.
  • FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII shown in FIG. 6
  • FIG. 9 is a schematic cross-sectional view taken along line XI-XI shown in FIG. 6
  • FIG. FIG. 7 is a schematic cross-sectional view taken along line XX shown in FIG. 6.
  • the support member 50 includes an elongated rectangular plate-shaped main body 51, and the main body 51 includes a plurality of notches 53, 53,. .. 53 is formed.
  • the notch 53 is formed on one long side of the main body 51 and is disposed at a position corresponding to the drive circuit 12 described later.
  • four through holes 55, 55, 55, 55 are provided in a lattice pattern.
  • a positioning projection 56 having a cross shape protrudes forward from the edge portion of the through hole 55.
  • the positioning protrusion 56 is engaged with the positioning recess 24 described above.
  • the cross shape or the lattice shape serves as a mark indicating the position of the positioning protrusion 56. Therefore, when the television receiver 1 is assembled, the operator can easily recognize the position of the positioning protrusion 56, so that the positioning protrusion 56 can be quickly locked to the positioning recess 24 to improve the efficiency of the assembly work. Can be made.
  • plate-like attachment portions 52, 52 that protrude forward and are substantially perpendicular to the main body 51 are formed on the long side portions of the main body 51 except for the vicinity of the notch 53. .
  • Two slits 54, 54 are juxtaposed in one body portion 51 adjacent to the notch 53 along a direction perpendicular to the longitudinal direction.
  • the slit 54 extends along the longitudinal direction. Note that the slit 54 is not formed in the other main body 51 adjacent to the notch 53.
  • the through hole 55 is provided as described above.
  • FIG. 11 is a perspective view schematically showing a lower portion of the front cabinet 20 to which the display panel 10 is attached and the support member 50
  • FIG. 12 is a partially enlarged vertical sectional view of the television receiver 1 corresponding to FIG. 13 is a schematic partially enlarged vertical sectional view of the television receiver 1 corresponding to FIG. 9, and
  • FIG. 14 is a schematic partially enlarged vertical sectional view of the television receiver 1 corresponding to FIG.
  • the description of the rear cabinet is omitted.
  • a plurality of SOF films (System film films) 11, SOF 11,..., SOF 11 are provided on the peripheral edge of the display panel 10, and the SOF 11 extends outward from the display panel 10.
  • a drive circuit 12 that drives a liquid crystal element of the display panel 10 is mounted on the SOF 11.
  • the SOF 11 is located on the attached portion 22 and the support portion 23, and the drive circuit 12 is located on the support portion 23. After attaching the display panel 10 to the front cabinet 20, the operator attaches the support member 50 to the attachment portion 22.
  • the operator locks the positioning protrusion 56 in the positioning recess 24 with the notch 53 on the lower side.
  • the vicinity of the slits 54, 54 of the support member 50 is pressed forward to bend the main body 51.
  • the claw portions 52a and 52a are separated from each other, get over the attached portion 22 and engage with the grooves 25 and 25 (see FIG. 12).
  • the support member 50 faces the edge portion immediately before the edge portion of the display panel 10.
  • the SOF 11 and the drive circuit 12 are positioned between the main body 51 and the front portion 21, and the drive circuit 12 is positioned inside the notch 53.
  • the operator provides the optical sheet 61 and the light plate on the main body 51, and inserts the front end portion of the heat radiating plate 71 between the support portions 23 so that the LED 73 faces the lower surface of the light guide plate 60.
  • 70 is temporarily fixed to the front cabinet 20.
  • a printed circuit board 90 that outputs various signals to the drive circuit 12 is provided below the heat radiating plate 71 and connected to the SOF 11 (see FIG. 13).
  • a rear chassis 80 is provided on the rear side of the light guide plate 60 and the front cabinet 20 and is screwed to the front cabinet 20.
  • the rear cabinet 30 is provided on the rear side of the rear chassis 80 and connected to the front cabinet 20.
  • the support member 50 Since the support member 50 is disposed immediately before the edge portion of the display panel 10, the light emitted from the LED 73 toward the display panel 10 is advanced by the support member 50 as indicated by arrows in FIGS. 12 to 14. Is prevented and does not enter the display panel 10.
  • the support member 50 blocks light traveling from the LED 73 toward the display panel 10.
  • the support member 50 is provided with the claw portions 52a and 52a, and the front cabinet 20 surrounding the light guide plate 60 and the display panel 10 is provided with the grooves 25 and 25.
  • the operator can attach the support member 50 to the front cabinet 20 only by engaging the claws 52a and 52a with the grooves 25 and 25, and the installation work can be completed in a short time. can do.
  • the slits 54 are provided in the main body 51 to facilitate bending, and the claw portions 52a, 52a can be easily engaged with the grooves 25, 25. Further, by forming the notch 53 in the main body 51, the drive circuit 12 is positioned inside the notch 53, the support member 50 can be prevented from coming into contact with the drive circuit 12, and interference between the two can be realized. . Further, the positioning projection 56 of the main body 51 can be engaged with the positioning recess 24 provided in the front cabinet 20 so that the support member 50 can be easily and reliably positioned with respect to the front cabinet 20.
  • the light source is not limited to the LED 73 but may be a cold cathode fluorescent tube, a hot cathode fluorescent tube, an incandescent bulb, EL (Electroluminescence), or the like.
  • the notch 53 is formed at a position corresponding to the drive circuit 12 in the main body 51 and the drive circuit 12 is arranged inside the notch 53.
  • the drive circuit 12 is not limited to the notch 53.
  • a hole may be formed so that is disposed inside.
  • the claw portions 52a and 52a are not provided in the attachment portions 52 and 52 that protrude from the main body 51 that is not provided with the slit 54 and the notch 53, but claw portions 52a and 52a may be provided.
  • the number of slits 54 is not limited to two, but may be one or three or more. Moreover, the slit 54 should just be a hole, The shape is not limited, Other shapes, such as a long hole, a round hole, and a square hole, may be sufficient.
  • the attachment portion 52 is substantially perpendicular to the main body portion 51, but is not limited to a right angle, and may be inclined with respect to the main body portion 51.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

La présente invention se rapporte à un dispositif d'affichage auquel un élément de blocage de la lumière peut être fixé en un laps de temps très court. La présente invention se rapporte d'autre part à un récepteur de télévision comprenant le dispositif d'affichage. Le dispositif d'affichage selon l'invention comprend : un écran d'affichage (10), qui affiche une image vidéo; une plaque de guidage de la lumière (60), qui fait face à l'écran d'affichage (10); une armoire en forme de cadre (20), qui entoure la plaque de guidage de la lumière (60) et l'écran d'affichage (10); et une source de lumière (73), qui est placée à l'intérieur de l'armoire (20) dans le périmètre de la plaque de guidage de la lumière (60). Le dispositif d'affichage selon l'invention comprend un élément de blocage de la lumière (50), qui est placé à l'intérieur de l'armoire (20) et qui bloque la lumière dirigée vers l'écran d'affichage (10) en provenance de la source de lumière (73). Des rainures (25) réalisées dans le sens de la circonférence de l'armoire (20) sont prévues sur l'armoire (20). L'élément de blocage de la lumière (50) comprend une section de corps principal (51), qui s'étend le long des rainures (25), et des sections de fixation (52) qui font saillie de la partie côté long de la section de corps principal (51) vers le côté armoire (20) et qui se fixent à l'armoire (20). Des sections formant mâchoire (52a), qui mettent en prise les rainures (25), sont placées sur les parties d'extrémité saillantes des sections de fixation (52); et des trous (54) sont placés sur des parties de la section de corps principal (51) qui correspondent aux sections formant mâchoire (52a).
PCT/JP2013/051969 2012-02-03 2013-01-30 Dispositif d'affichage et récepteur de télévision WO2013115211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-022206 2012-02-03
JP2012022206A JP5166614B1 (ja) 2012-02-03 2012-02-03 表示装置及びテレビジョン受信機

Publications (1)

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WO2013115211A1 true WO2013115211A1 (fr) 2013-08-08

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001117097A (ja) * 1999-10-22 2001-04-27 Sharp Corp 液晶表示装置
JP2006184348A (ja) * 2004-12-27 2006-07-13 Casio Comput Co Ltd 画像表示装置
WO2011077866A1 (fr) * 2009-12-23 2011-06-30 シャープ株式会社 Dispositif d'éclairage, dispositif d'affichage et dispositif de récepteur de télévision

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001117097A (ja) * 1999-10-22 2001-04-27 Sharp Corp 液晶表示装置
JP2006184348A (ja) * 2004-12-27 2006-07-13 Casio Comput Co Ltd 画像表示装置
WO2011077866A1 (fr) * 2009-12-23 2011-06-30 シャープ株式会社 Dispositif d'éclairage, dispositif d'affichage et dispositif de récepteur de télévision

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JP2013162304A (ja) 2013-08-19
JP5166614B1 (ja) 2013-03-21

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