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WO2012002077A1 - Dispositif d'éclairage, dispositif d'affichage, et dispositif de réception de télévision - Google Patents

Dispositif d'éclairage, dispositif d'affichage, et dispositif de réception de télévision Download PDF

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Publication number
WO2012002077A1
WO2012002077A1 PCT/JP2011/061942 JP2011061942W WO2012002077A1 WO 2012002077 A1 WO2012002077 A1 WO 2012002077A1 JP 2011061942 W JP2011061942 W JP 2011061942W WO 2012002077 A1 WO2012002077 A1 WO 2012002077A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
main body
housing
chassis
cold cathode
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2011/061942
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English (en)
Japanese (ja)
Inventor
達朗 黒田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Publication of WO2012002077A1 publication Critical patent/WO2012002077A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04N5/645—Mounting of picture tube on chassis or in housing
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G02F2201/503—Arrangements improving the resistance to shock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information

Definitions

  • the present invention relates to a lighting device, a display device, and a television receiver.
  • a liquid crystal panel used in a liquid crystal display device such as a liquid crystal television does not emit light, and thus requires a separate backlight device as an illumination device.
  • This backlight device is installed on the back side of the liquid crystal panel (the side opposite to the display surface), and has a chassis with an open surface on the liquid crystal panel side, and is housed in the chassis and has an electrode at the end.
  • a plurality of cold cathode tubes, a plurality of optical members (such as a diffusion sheet) that are arranged in the opening of the chassis and efficiently emit light emitted from the cold cathode tubes to the liquid crystal panel side, and a cold cathode And a connection component connected to an external connection provided at the end of the tube.
  • patent document 1 is known as an example of this kind of backlight apparatus.
  • the present invention has been completed based on the above circumstances, and aims to prevent damage to the light source.
  • the lighting device of the present invention includes a light source having an external connection portion at an end thereof, a chassis that houses the light source, and a relay component that relays power supply to the light source, and the relay component is attached to the chassis. It comprises a main body part, a holding part that holds the external connection part, and a vibration absorbing part that connects the main body part and the holding part and can absorb vibration.
  • the light source accommodated in the chassis is held by the holding part provided in the relay part with the external connection part arranged at the end part.
  • the power supply to the light source is relayed through this relay component.
  • the vibration generated as the bend is restored is transmitted to the holding unit via the main body of the relay part attached to the chassis, and is held by the holding unit.
  • vibrations are transmitted to the light source and the light source is damaged.
  • the holding state of the external connection portion by the holding portion may be adversely affected.
  • the relay component since the relay component has the vibration absorbing portion that connects the main body portion and the holding portion, even when the above vibration occurs, the vibration is absorbed by the vibration absorbing portion. It is possible to suppress the transmission of vibration between the main body portion and the holding portion. This makes it difficult for vibration to be transmitted from the chassis to the light source, thereby preventing the light source from being damaged. In addition, the holding state of the external connection portion by the holding portion can be kept good.
  • the vibration absorbing portion can be displaced relative to the main body portion by deforming itself.
  • the holding portion is relatively displaced with respect to the main body portion while deforming the vibration absorbing portion, thereby aligning the holding portion with the external connection portion in the light source and Holding can be achieved, and the light source hardly needs to be deformed. Therefore, the load that can act on the light source can be reduced, and a situation in which the light source is damaged can be more reliably prevented.
  • the vibration absorbing portion is made of an elastic member that can be elastically deformed. If it does in this way, a vibration absorption part can absorb a vibration favorably by the elasticity which self has, allowing relative displacement of a holding part to a main part. As a result, it is possible to more reliably prevent the light source from being damaged.
  • the relay component includes an insulating housing, and a connection terminal that is accommodated in the housing and has conductivity and is connected to the external connection portion.
  • the connection terminal has at least the holding portion, whereas at least the main body portion is provided. In this way, the main body portion of the housing is attached to the chassis, whereas the holding portion of the connection terminal accommodated in the housing holds the external connection portion.
  • the housing includes at least a housing main body attached to the chassis, whereas the connection terminal includes a terminal main body accommodated in the housing main body and a light source contact portion that is in contact with the external connection portion.
  • the vibration absorbing portion that connects the terminal main body and the light source contact portion, the main body portion is composed of the housing main body and the terminal main body, whereas the holding portion is It comprises at least the light source contact portion. If it does in this way, it can prevent that a vibration is transmitted between the terminal main body accommodated in a housing main body, and a light source contact part by the vibration absorption part which a connection terminal has.
  • the vibration absorbing portion includes a spring portion. If it does in this way, a vibration can be absorbed favorably by the spring nature which a spring part has.
  • the said spring part is comprised with a leaf
  • the external connection part is constituted by a base sheathed at an end of the light source, and the light source contact part is constituted by an elastic holding piece capable of elastically holding the base. If it does in this way, a mutual connection state can be made favorable by hold
  • the spring portion is configured by a coil spring. In this way, a high vibration absorbing effect can be obtained at low cost.
  • the external connection portion is constituted by an outer lead protruding from an end portion of the light source, and the light source contact portion is constituted by a conical coil spring into which the outer lead is inserted, whereas the spring The portion is constituted by a cylindrical coil spring connected to the conical coil spring. If it does in this way, in addition to being able to absorb a vibration favorably with the cylindrical coil spring which constitutes a spring part, vibration is also secondarily absorbed also with a cone-shaped coil spring which constitutes a light source contact part. be able to. Since this conical coil spring is less likely to buckle and deform than a cylindrical coil spring, the outer lead can be easily and reliably held in a connected state.
  • the housing has a separating portion separated from the housing main body in addition to the housing main body, whereas the light source contact portion in the connection terminal is accommodated in the separating portion,
  • the holding part is composed of the separation part and the light source contact part.
  • the vibration absorption unit includes a first vibration absorption unit included in the connection terminal, and a second vibration absorption unit interposed between the housing body and the separation unit. In this way, vibrations can be absorbed not only by the first vibration absorption part of the connection terminal but also by the second vibration absorption part interposed between the housing body and the separation part, so that the light source is damaged. Can be prevented more reliably.
  • the light source is a tubular light source, and a light source holder that holds a portion on the center side of the end of the tubular light source is attached to the chassis.
  • the light source is a cold cathode tube. By doing so, it is possible to extend the life and to easily perform light control.
  • a display device of the present invention includes the above-described illumination device and a display panel that performs display using light from the illumination device.
  • the manufacturing cost can be reduced.
  • a liquid crystal panel can be exemplified as the display panel.
  • Such a display device can be applied as a liquid crystal display device to various uses such as a display of a television or a personal computer, and is particularly suitable for a large screen.
  • FIG. 1 is an exploded perspective view showing a schematic configuration of a television receiver according to Embodiment 1 of the present invention.
  • the exploded perspective view which shows schematic structure of the liquid crystal display device with which a television receiver is equipped
  • Sectional drawing which shows the cross-sectional structure along the long side direction of a liquid crystal display device
  • the top view which shows the arrangement structure of the cold cathode tube and connector in the chassis with which a liquid crystal display device is equipped
  • FIG. 3 is an enlarged sectional view of the main part of FIG. Vi-vi cross-sectional view of FIG.
  • the principal part expanded sectional view which shows the state before accommodating a cold cathode tube in a chassis
  • the principal part expanded sectional view which shows the state which accommodated the cold cathode tube in the chassis
  • the principal part expanded sectional view which shows the state which the bent chassis restored
  • Sectional drawing which shows the structure of the connection terminal in the connector which concerns on Embodiment 2 of this invention.
  • Sectional drawing which shows the structure of the connection terminal in the connector which concerns on Embodiment 3 of this invention.
  • Sectional drawing which shows the structure of the connection terminal in the connector which concerns on Embodiment 4 of this invention.
  • Sectional drawing which shows the structure of the connection terminal in the connector which concerns on Embodiment 5 of this invention.
  • Sectional drawing which shows the structure of the housing in the connector which concerns on Embodiment 6 of this invention. Sectional drawing which shows the structure of the housing in the connector which concerns on the modification 1 of Embodiment 6. Sectional drawing which shows the structure of the housing in the connector which concerns on the modification 2 of Embodiment 6. Sectional drawing which shows the structure of the housing in the connector which concerns on the modification 3 of Embodiment 6. FIG.
  • FIGS. 1 A first embodiment of the present invention will be described with reference to FIGS.
  • the liquid crystal display device 10 is illustrated.
  • a part of each drawing shows an X axis, a Y axis, and a Z axis, and each axis direction is drawn to be a direction shown in each drawing.
  • the upper side shown in FIG. 3 be a front side
  • the lower side shown in FIG. 3 be a back side.
  • the television receiver TV includes a liquid crystal display device (display device) 10, front and back cabinets Ca and Cb that are accommodated so as to sandwich the liquid crystal display device 10, a power supply P, A tuner T and a stand S are provided.
  • the liquid crystal display device 10 has a horizontally long rectangular shape as a whole, and includes a liquid crystal panel 11 as a display panel and a backlight device (illumination device) 12 as an external light source, as shown in FIG. Are integrally held by a bezel 13 or the like.
  • the liquid crystal panel 11 and the backlight device 12 constituting the liquid crystal display device 10 will be described sequentially.
  • the liquid crystal panel 11 has a horizontally long (longitudinal) rectangular shape in a plan view, and a pair of glass substrates are bonded together with a predetermined gap therebetween, and between the two glass substrates.
  • the liquid crystal is sealed.
  • One glass substrate is provided with a switching element (for example, TFT) connected to a source wiring and a gate wiring orthogonal to each other, a pixel electrode connected to the switching element, an alignment film, and the like.
  • a switching element for example, TFT
  • the substrate is provided with a color filter and counter electrodes in which colored portions such as R (red), G (green), and B (blue) are arranged in a predetermined arrangement, and an alignment film.
  • a polarizing plate is disposed on the outside of both substrates.
  • the backlight device 12 is a so-called direct type backlight in which a light source is arranged directly under the back surface of the liquid crystal panel 11, and is a front side (light emitting side, liquid crystal panel 11 side).
  • a substantially box-shaped chassis 14 that is open at the top, a reflection sheet 15 laid inside the chassis 14, a plurality of optical members 16 that are arranged to cover the opening 14 b of the chassis 14, and the optical member 16 are held.
  • Relayable connector power supply from the inverter board 21 for the cold cathode tube 18 holds the and a (relay part) 22.
  • the chassis 14 is made of a metal such as aluminum, and has a bottom plate 14a having a laterally long shape (longitudinal shape in which the long side direction coincides with the X-axis direction) in the same plane as the liquid crystal panel 11, and the long side thereof. It is comprised from a pair of side plate 14c which stands up from the outer end.
  • the long side direction of the bottom plate 14a coincides with the X-axis direction of each drawing, and the short side direction coincides with the Y-axis direction.
  • the bottom plate 14a is arranged opposite to the back side of the cold cathode tube 18, in other words, arranged on the opposite side of the cold cathode tube 18 from the light emitting side.
  • the reflection sheet 15 is made of a synthetic resin exhibiting white with excellent light reflectivity and is laid so as to cover almost the entire inner surface of the bottom plate 14a of the chassis 14 so that the light from the cold cathode tube 18 is optically transmitted. It has a function of reflecting to the member 16 side (light emission side).
  • the bottom plate 14a and the reflection sheet 15 are formed with a plurality of holes (not shown) for attaching the respective lamp clips 19 at corresponding positions.
  • the optical member 16 Similar to the bottom plate 14a of the chassis 14 and the liquid crystal panel 11, the optical member 16 has a horizontally long rectangular shape in plan view, is made of a synthetic resin having translucency, and has a cold cathode tube 18 on the back side and a front side. It is interposed between the liquid crystal panel 11.
  • the optical member 16 includes, for example, a diffusion plate, a diffusion sheet, a lens sheet, and a brightness enhancement sheet in order from the back side, and converts light emitted from each cold cathode tube 18 that is a tubular light source into uniform planar light. It has functions such as conversion.
  • the frame 17 has a frame shape along the outer peripheral edge of the liquid crystal panel 11 and the optical member 16.
  • the frame 17 is arranged on the front side of the optical member 16 and can sandwich the outer peripheral edge portion of the optical member 16 between the side plate 14c of the chassis 14 and a lamp holder 20 described later.
  • the frame 17 can receive the liquid crystal panel 11 from the back side, and can hold the liquid crystal panel 11 with the bezel 13 disposed on the front side of the liquid crystal panel 11.
  • the cold cathode tube 18 is a kind of tubular light source (linear light source), and as shown in FIG. 4, the axial direction of the cold cathode tube 18 coincides with the long side direction (X-axis direction) of the chassis 14 in the chassis 14.
  • a plurality of pieces (12 pieces in FIG. 4) are arranged along the short side direction (Y-axis direction) of the chassis 14 with their axes substantially parallel to each other and at a predetermined interval therebetween. They are arranged in parallel. Therefore, both end portions of each cold cathode tube 18 are arranged in parallel along the short side direction at both end portions in the long side direction of the chassis 14.
  • the interval between adjacent cold cathode tubes 18, that is, the arrangement pitch, is approximately equal.
  • This cold cathode tube 18 is a kind of discharge tube, and as shown in FIG. 5, a long and narrow glass tube 18a having a circular cross section sealed at both ends and a pair enclosed inside the both ends of the glass tube 18a. Electrode portion 18b and a pair of outer leads (external connection portions) 18c projecting outward from both ends of the glass tube 18a.
  • the cold cathode tube 18 is a so-called straight tube type in which the glass tube 18a is in a straight line and the electrode portions 18b are dispersedly arranged in two directions (right and left in FIG. 4).
  • the glass tube 18a is filled with mercury, which is a luminescent material, and is coated with a phosphor (not shown with mercury) on its inner wall surface.
  • the electrode portion 18b and the outer lead 18c are both made of a conductive metal material, and among these, the electrode portion 18b is preferably made of an alloy having excellent sputtering resistance.
  • the electrode portion 18b has a substantially cup shape and is accommodated in the end portion of the glass tube 18a.
  • the outer lead 18c has an elongated, substantially cylindrical shape that penetrates the sealing edge of the glass tube 18a and projects outward along the axial direction (X-axis direction, length direction) of the glass tube 18a. By connecting the part to the electrode part 18b in the glass tube 18a, the same potential as the electrode part 18b is obtained.
  • the lamp clips 19 are made of a synthetic resin exhibiting white having excellent light reflectivity, and are distributed in a predetermined distribution with respect to the inner surface of the bottom plate 14a of the chassis 14 as shown in FIG.
  • the lamp clip 19 includes a main body portion 19a attached to the bottom plate 14a of the chassis 14, a lamp grip portion 19b that grips a central side portion excluding both ends of the cold cathode tube 18, and a support pin that supports the optical member 16 from the back side. 19c.
  • the lamp clip 19 makes it possible to keep the distance between the cold cathode tube 18 and the bottom plate 14a of the chassis 14 and the optical member 16 substantially constant.
  • the lamp clip 19 is disposed in the chassis 14 so that the central portion of each cold cathode tube 18 can be held at two positions separated in the axial direction.
  • the lamp holder 20 is made of a synthetic resin exhibiting white having excellent light reflectivity. As shown in FIGS. 2 and 3, the lamp holder 20 extends along the short side direction of the chassis 14 and has an open rear surface. It has a box shape. A pair of lamp holders 20 are attached to both ends of the short side of the chassis 14 so that the ends of the cold cathode tubes 18 arranged in parallel at the same position and the connectors 22 described later can be covered together. It is like that. As shown in FIG. 3, a step portion is formed on the front surface of the lamp holder 20, and this is an optical member placement portion on which the optical member 16 can be placed. The lamp holder 20 has an inclined portion that is inclined from the optical member placement portion toward the bottom plate 14 a of the chassis 14.
  • the inverter board 21 has a predetermined circuit pattern formed on a synthetic resin board (for example, made of paper phenol or glass epoxy resin) and mounted with various electronic components such as a transformer (not shown). Being done.
  • the inverter board 21 is connected to a power source P of the liquid crystal display device 10, boosts an input voltage input from the power source P, and outputs an output voltage higher than the input voltage to the cold cathode tube 18.
  • the cold cathode tube 18 has a function of controlling turning on / off.
  • the inverter board 21 is disposed on the back side of the chassis 14, that is, on the side opposite to the cold cathode tube 18.
  • the inverter boards 21 are arranged in pairs near the positions of both ends of the bottom plate 14a of the chassis 14 in the long side direction, and are fixed to the bottom plate 14a by screws.
  • a connector connection portion 21a that is individually fitted and connected to the connector 22 described below is formed at the end of the inverter substrate 21.
  • the connectors 22 are arranged in a pair at positions corresponding to both ends of the cold cathode tube 18 with respect to the chassis 14, that is, at both ends in the long side direction of the bottom plate 14a.
  • the bottom plate 14a is arranged side by side (by the number of the cold cathode tubes 18) along the short side direction (the Y-axis direction, the parallel direction of the cold cathode tubes 18).
  • the arrangement pitch of the connectors 22 is substantially equal to the arrangement pitch of the cold cathode tubes 18.
  • the installation positions of the connectors 22 in the Y-axis direction are almost the same as those of the cold cathode tubes 18.
  • a plurality of mounting holes 14d (for the number of cold cathode tubes 18) are arranged in parallel along the Y-axis direction at the mounting position of each connector 22 on the bottom plate 14a of the chassis 14 along the Y-axis direction. Yes.
  • the connector 22 is made of an insulating synthetic resin housing 23, and is made of a conductive metal while being accommodated in the housing 23, and is connected to the outer lead 18 c and the inverter board 21. And a connection terminal 24 to be electrically connected.
  • the output voltage output from the inverter board 21 can be input to the outer lead 18 c and the electrode portion 18 b of the cold cathode tube 18 via the connection terminal 24 of the connector 22.
  • the housing 23 has a so-called two-part configuration including a housing main body 25 directly attached to the chassis 14 and a separation portion 26 separated from the housing main body 25.
  • the housing main body 25 has a substantially block shape as a whole, and is attached in a state of penetrating the bottom plate 14a in and out by being inserted into an attachment hole 14d formed in the bottom plate 14a of the chassis 14.
  • a portion of the housing body 25 arranged outside the chassis 14 constitutes a board receiving portion 25 a that receives the connector connecting portion 21 a of the inverter board 21.
  • the board receiving portion 25a is provided with a board insertion opening 25b that opens toward the inverter board 21 along the X-axis direction.
  • the separating portion 26 is opposed to the housing body 25 while having a predetermined gap in the Z-axis direction, and is entirely disposed in the chassis 14, so that the end portion (outer lead) of the cold cathode tube 18 is disposed.
  • 18c (including the light source 18c).
  • an arc-shaped groove portion 26b is formed following the outer shape so as to receive the end portion of the cold cathode tube 18.
  • connection terminal 24 is formed in a predetermined shape by press-molding a metal plate material (plate material made of iron, stainless steel, aluminum, etc.) excellent in conductivity, and is a terminal accommodated in the housing body 25 in the housing 23.
  • a main body 27, a light source contact portion 28 accommodated in the separation portion 26, and a spring portion 29 that connects the terminal main body 27 and the light source contact portion 28 are configured.
  • the terminal main body 27 is entirely accommodated in a terminal accommodating chamber 25c formed in the housing main body 25, and is arranged facing the board insertion opening 25b communicating with the terminal accommodating chamber 25c.
  • the terminal body 27 includes a cylindrical portion 27a whose inner peripheral surface faces the substrate insertion port 25b, a substrate contact portion 27b formed in an inwardly folded shape from an end portion of the cylindrical portion 27a, and the cylindrical portion 27a. It is comprised from the edge part on the opposite side to the board
  • the cylindrical part 27a is configured to open back and forth along the insertion / extraction direction (X-axis direction) of the inverter board 21, and the connector connection part 21a of the inverter board 21 can be fitted therein.
  • the board contact portion 27b has a mountain-shaped cantilever shape and is capable of elastic contact with the connector connecting portion 21a of the inverter board 21.
  • the terminal accommodating chamber 25c is configured to open toward the front side, that is, toward the separating portion 26 (inside the chassis 14), and the lead-out portion 27c extends toward the opening of the terminal accommodating chamber 25c. Thus, it is bent so as to form a substantially L shape with respect to the cylindrical portion 27a.
  • the light source contact portion 28 is entirely accommodated in a terminal accommodating chamber 26c formed in the separating portion 26, and a base portion 28a along the wall surface of the terminal accommodating chamber 26c,
  • the base portion 28a is composed of a pair of elastic contact pieces 28b that are formed inwardly from the tips of both side portions.
  • the base portion 28a includes a bottom portion that extends along the bottom surface of the terminal accommodating chamber 26c, and a pair of side portions that rise from the bottom portion toward the front side and extend along both side surfaces of the terminal accommodating chamber 26c.
  • the terminal accommodating chamber 26c opens toward the front side (the side opposite to the housing main body 25) in the Z-axis direction, and communicates with the groove 26b.
  • the outer lead 18c is allowed to enter. Furthermore, the terminal accommodating chamber 26c is opened toward the end side of the chassis 14 in the X-axis direction, whereby a spring portion 29 described later is drawn out of the separation portion 26 from the base portion 28a.
  • the pair of elastic contact pieces 28b are opposed to each other and are symmetrical with each other, and the outer lead 18c can be elastically sandwiched therebetween (FIG. 6).
  • the connector 22 having the above-described configuration can be divided into a main body portion 30 attached to the chassis 14 and an end portion of the cold cathode tube 18 and a holding portion 31 for holding the outer lead 18c arranged there.
  • the main body portion 30 here is constituted by the housing main body 25 and the terminal main body 27 accommodated therein, whereas the holding portion 31 is constituted by the separation portion 26 and the light source contact portion accommodated therein. 28.
  • the housing 23 and the connection terminal 24 according to the present embodiment each have a part of the main body part 30 and a part of the holding part 31.
  • the main body portion 30 and the holding portion 31 constituting the connector 22 are connected to each other by a spring portion 29 in the connection terminal 24, and the spring portion 29 generates vibration that can occur in the main body portion 30 and the holding portion 31. It can function as the vibration absorption part 32 that can be absorbed.
  • the spring portion 29 will be described in detail.
  • the spring portion 29 that forms the vibration absorbing portion 32 is orthogonal to both the Y-axis direction (the X-axis direction that is the axial direction of the cold cathode tube 18 and the Z-axis direction that is the attachment / detachment direction of the cold cathode tube 18 with respect to the chassis 14. In the direction in which the plate springs have a predetermined width.
  • the spring portion 29 is connected to the end portion of the lead-out portion 27c of the terminal main body 27 on the side opposite to the cylindrical portion 27a side and the bottom portion of the base portion 28a of the light source contact portion 28, and is substantially omitted as a whole. It has a curved U-shaped shape. The detailed shape will be described.
  • the spring portion 29 extends a predetermined length from the end portion of the lead-out portion 27c toward the end side of the chassis 14 in the X-axis direction, and then is folded back into a hairpin shape and separated therefrom in the X-axis direction.
  • the base 26 a has a shape extending toward the bottom of the base portion 28 a.
  • the spring portion 29 includes a curved folded portion 29a and a pair of arm portions 29b extending from the folded portion 29a along the X-axis direction.
  • the spring portion 29 can be elastically deformed with the folded-back portion 29a as a base point, and along with the elastic deformation, the pair of arm portions 29b are displaced so as to open and close in the Z-axis direction, or in the X-axis direction or the Y-axis direction. It can be displaced to slide.
  • both end portions of the spring portion 29, that is, the connection position with the lead-out portion 27c and the connection position with the base portion 28a are assumed to be the largest relative displacement. Due to the elasticity of the spring portion 29, even when vibration occurs in the main body portion 30 or the holding portion 31, it is possible to suppress the vibration to be well absorbed and transmitted to the other side.
  • the main body portion 30 (the housing main body 25 and the terminal main body 27) and the holding portion 31 (the separation portion 26 and the light source contact portion 28) are mainly Z-axis. Relative displacement in the direction and the X-axis direction.
  • the Z-axis direction is a direction in which the main body portion 30 and the holding portion 31 are in contact with and away from each other (the direction in which the cold cathode tube 18 is attached to and detached from the chassis 14)
  • the X-axis direction is the long-side direction (cooling direction) (The axial direction of the cathode tube 18).
  • the spring portion 29 can be somewhat elastically deformed also in the Y-axis direction, so that the main body portion 30 and the holding portion 31 can be relatively displaced in the Y-axis direction. ing.
  • This embodiment has the structure as described above, and its operation will be described next.
  • the separately manufactured liquid crystal panel 11, backlight device 12, bezel 13 and the like are assembled.
  • the manufacturing procedure of the backlight device 12 will be mainly described.
  • the assembling work of the backlight device 12 is performed by placing the chassis 14 on a predetermined work table B as shown in FIG.
  • the work table B has a pair of support portions Ba that respectively support both ends of the chassis 14 in the long side direction.
  • portions of the bottom plate 14a closer to the center than both end portions in the long side direction are supported by the support portions Ba.
  • the corresponding connectors 22 are respectively attached to the respective mounting holes 14d of the bottom plate 14a, and after the reflection sheet 15 is laid so as to cover the inner surface of the bottom plate 14a, the respective lamp clips 19 are connected to the corresponding portions of the bottom plate 14a. Work to attach to.
  • the cold cathode tube 18 is attached. From the state shown in FIG. 7, both ends of the cold cathode tube 18 are accommodated in the chassis 14 along the Z-axis direction while being aligned with the corresponding connectors 22.
  • the bottom plate 14a of the chassis 14 may be bent (elastically deformed to warp) based on the support position by the support portion Ba in the work table B.
  • the portion projecting laterally from the portion Ba, that is, the end portion in the long side direction is relatively displaced mainly in the Z-axis direction so as to be lower than the portion supported by the support portion Ba, that is, the central side portion in the long side direction. There is a case.
  • the light source contact portion 28 accommodated in the separation portion 26 is displaced with respect to the outer lead 18c of the cold cathode tube 18.
  • the spring portion 29 is elastically deformed to displace the separating portion 26 that is the holding portion 31 relative to the housing body 25 that is the main body portion 30 in the Z-axis direction and the X-axis direction. Accordingly, as shown in FIG. 8, the light source contact portion 28 can be connected to each other while being aligned with the outer lead 18c.
  • the glass tube 18a of the cold cathode tube 18 needs to be bent for connection, but in this embodiment, the holding portion 31 of the connector 22 is relatively displaced. Therefore, the glass tube 18a of the cold cathode tube 18 is hardly required to be deformed, and the load that can act on the cold cathode tube 18 during connection is reduced, so that the cold cathode tube 18 is unlikely to be damaged. Is done.
  • the outer lead 18c is elastically sandwiched between a pair of elastic contact pieces 28b constituting the light source contact portion 28, thereby making contact with the connection terminal 24 (FIG. 6). Further, a portion of the cold cathode tube 18 that is closer to the center than the end portion is gripped by the lamp gripping portion 19 b of the lamp clip 19.
  • the bending that has occurred in the bottom plate 14a of the chassis 14 may be restored as shown in FIG.
  • the vibration generated in the bottom plate 14a due to the restoration is transmitted to the holding unit 31 via the main body 30 of the connector 22 attached to the bottom plate 14a, the cold cathode tube 18 held by the holding unit 31.
  • vibration is transmitted to the glass tube 18a of the cold cathode tube 18 and damage such as cracking occurs.
  • the holding state of the cold cathode tube 18 by the holding unit 31, more specifically, the contact state between the light source contact unit 28 and the outer lead 18 c may be adversely affected.
  • the connector 22 includes the vibration absorbing portion 32 (spring portion 29) that connects the main body portion 30 and the holding portion 31, and therefore, even when the above vibration occurs, the vibration is generated.
  • the vibration absorbing portion 32 spring portion 29
  • the vibration transmission between the main body portion 30 and the holding portion 31 can be suppressed.
  • This makes it difficult for vibration to be transmitted from the bottom plate 14a of the chassis 14 to the cold cathode tube 18 via the connector 22, thereby preventing the glass tube 18a of the cold cathode tube 18 from being damaged such as being cracked due to vibration.
  • the holding state of the cold cathode tube 18 by the holding portion 31, more specifically, the contact state between the light source contact portion 28 and the outer lead 18c can be stably maintained.
  • the work of attaching the lamp holders 20 to both ends in the long side direction of the chassis 14 is performed.
  • the connectors 22 and the end portions of the cold cathode tubes 18 arranged in parallel along the Y-axis direction are accommodated therein.
  • the optical member 16 is subsequently attached so as to cover the opening 14b of the chassis 14, and the outer edge portion of the optical member 16 is placed on the optical member placement portion of the lamp holder 20. While the lamp holder 20 and the optical member 16 are assembled, the inverter board 21 is assembled on the back side of the chassis 14.
  • the connector connecting portion 21a in the inverter board 21 When the connector connecting portion 21a in the inverter board 21 is inserted into the board insertion port 25b in the board receiving portion 25a of the connector 22, the connector connecting portion 21a is formed into a cylindrical portion in the terminal main body 27 of the connection terminal 24 as shown in FIG. It fits in 27a and is elastically contacted with the substrate contact portion 27b. As a result, the inverter board 21 is electrically connected to the cold cathode tube 18 via the connector 22. Since the backlight device 12 is assembled as described above, the liquid crystal display device 10 is obtained by assembling the liquid crystal panel 11 and the bezel 13 to the backlight device 12 (FIG. 3).
  • the backlight device (illumination device) 12 of this embodiment includes the cold cathode tube (light source) 18 having the outer lead (external connection portion) 18c at the end, and the chassis 14 that houses the cold cathode tube 18. And a connector (relay part) 22 that relays power supply to the cold cathode tube 18.
  • the connector 22 includes a main body portion 30 attached to the chassis 14, a holding portion 31 that holds the outer lead 18 c, and a main body portion 30. It is comprised from the vibration absorption part 32 which connects the part 31 and can absorb a vibration.
  • the cold cathode fluorescent lamp 18 accommodated in the chassis 14 is held by the holding portion 31 provided in the connector 22 with the outer lead 18c arranged at the end.
  • the power supply to the cold cathode tube 18 is relayed through the connector 22.
  • the vibration generated as the bending is restored is transmitted to the holding unit 31 via the main body 30 of the connector 22 attached to the chassis 14.
  • the vibration is also transmitted to the cold cathode tube 18 held by the portion 31, and there is a concern that the cold cathode tube 18 may be damaged. Further, the holding state of the outer lead 18c by the holding portion 31 may be adversely affected.
  • the connector 22 includes the vibration absorbing portion 32 that connects the main body portion 30 and the holding portion 31, and therefore, even when the above vibration occurs, the vibration is absorbed. It can be absorbed by the part 32, and transmission of vibration between the main body part 30 and the holding part 31 can be suppressed. This makes it difficult for vibration to be transmitted from the chassis 14 to the cold cathode tube 18, thereby preventing the cold cathode tube 18 from being damaged. Further, the holding state of the outer lead 18c by the holding portion 31 can be kept good.
  • the vibration absorbing part 32 can be displaced relative to the main body part 30 by deforming itself.
  • the holding portion 31 is displaced relative to the main body portion 30 while the vibration absorbing portion 32 is deformed, so that the holding portion 31 is the outer lead in the cold cathode tube 18. It can be positioned and held at 18c, and the cold cathode tube 18 is hardly required to be deformed. Therefore, the load that can act on the cold cathode tube 18 can be reduced, and a situation in which the cold cathode tube 18 is damaged can be prevented more reliably.
  • the vibration absorbing portion 32 is made of an elastic member that can be elastically deformed. In this way, the vibration absorbing portion 32 can absorb the vibration satisfactorily by its own elasticity while allowing the relative displacement of the holding portion 31 with respect to the main body portion 30. Thereby, it is possible to further reliably prevent the cold cathode tube 18 from being damaged.
  • the connector 22 includes an insulating housing 23 and a connection terminal 24 that is accommodated in the housing 23 and is electrically conductive and connected to the outer lead 18c.
  • the connection terminal 24 has at least a holding portion 31. In this manner, the main body 30 in the housing 23 is attached to the chassis 14, while the holding portion 31 in the connection terminal 24 accommodated in the housing 23 holds the outer lead 18 c.
  • the housing 23 has at least a housing main body 25 attached to the chassis 14, whereas the connection terminal 24 is connected to the terminal main body 27 accommodated in the housing main body 25 and the outer lead 18 c. And a vibration absorbing portion 32 that connects the terminal main body 27 and the light source contact portion 28.
  • the main body portion 30 is composed of the housing main body 25 and the terminal main body 27, whereas the holding portion 31 is At least the light source contact portion 28 is formed. If it does in this way, it can prevent that a vibration is transmitted between the terminal main body 27 accommodated in the housing main body 25, and the light source contact part 28 by the vibration absorption part 32 which the connection terminal 24 has.
  • the vibration absorbing portion 32 includes a spring portion 29. In this way, the vibration can be satisfactorily absorbed by the spring property of the spring portion 29.
  • the spring part 29 is comprised with a leaf
  • the housing 23 has a separation portion 26 separated from the housing body 25 in addition to the housing body 25, whereas the light source contact portion 28 in the connection terminal 24 is accommodated in the separation portion 26 and held.
  • the part 31 includes a separation part 26 and a light source contact part 28.
  • the light source is a cold cathode tube (tubular light source) 18, and a lamp clip (light source holder) 19 that holds the central portion of the cold cathode tube 18 from the end portion is attached to the chassis 14. Yes.
  • a lamp clip light source holder
  • the light source is a cold cathode tube 18. By doing so, it is possible to extend the life and to easily perform light control.
  • Embodiment 2 A second embodiment of the present invention will be described with reference to FIG. In this Embodiment 2, what changed the structure of the housing 123 and the connecting terminal 124 is shown. In addition, the overlapping description about the same structure, effect
  • the housing 123 in the connector 122 according to the present embodiment is composed only of the housing main body 125 attached to the bottom plate 14 a of the chassis 14, and the separation portion 26 shown in the first embodiment is omitted. ing.
  • the connection terminals 124 the light source contact portion 128 connected to the outer lead 18c of the cold cathode tube 18 is constituted by the conical coil spring 33, and the spring portion 129 constituting the vibration absorbing portion 132 is a cylinder.
  • the coil spring 34 is configured. Therefore, the holding part 131 in the connector 122 according to the present embodiment is constituted only by the conical coil spring 33 that forms the light source contact part 128.
  • the conical coil spring 33 that constitutes the light source contact portion 128 has a substantially conical shape as a whole by winding a metal wire in a tapered spiral shape, and the outer lead is placed in the distal end portion 33a having the smallest diameter. 18c is inserted and fixed by soldering or the like.
  • the tip 33a into which the outer lead 18c is inserted has a constant diameter over a predetermined length, and has a size corresponding to the outer diameter of the outer lead 18c.
  • the conical coil spring 33 has an axis that coincides with the X-axis direction, and can be elastically stretched mainly in the X-axis direction.
  • the conical coil spring 33 is mainly elastically deformed at a portion (a portion not fixed to the outer lead 18 c) whose diameter is increased from the distal end portion 33 a.
  • the conical coil spring 33 can be elastically buckled and deformed in the direction intersecting the axis, that is, in the Y-axis direction and the Z-axis direction.
  • the cylindrical coil spring 34 forming the spring portion 129 is formed in a substantially cylindrical shape as a whole by winding a metal wire in a spiral shape so as to have a substantially constant diameter dimension over the entire length, and one end side of the cylindrical coil spring 34 has the above-described conical shape. The other end is connected to the terminal body 127 while being connected to the coil spring 33.
  • the cylindrical coil spring 34 is bent halfway so as to form a substantially V-shape when viewed from the side, and is coaxial with the conical coil spring 33 and extends along the X-axis direction.
  • the first part 34a and the second part 34b whose axis is inclined so as to form an acute angle with respect to the axis (X-axis direction) of the first part 34a are connected by a bent part 34c.
  • the first part 34a and the second part 34b can be elastically expanded and contracted along the respective axis lines, and the conical coil spring 33 connected thereby is moved in the X-axis direction and the Z-axis direction. Can be displaced. Since the cylindrical coil spring 34 can be elastically buckled and deformed, it can also be displaced in the Y-axis direction.
  • vibration from the main body 130 of the connector 22 attached to the bottom plate 14a is mainly a cylindrical type that forms the spring portion 129.
  • the damage prevention function of the cold cathode tube 18 is further enhanced.
  • the first coil coil 34 in the cylindrical coil spring 34 is displaced. Since the conical coil spring 33 can be displaced in the X-axis direction and the Z-axis direction by elastically expanding and contracting the first part 34a and the second part 34b along the respective axes, the mutual positions can be easily obtained. Thus, the load that can act on the cold cathode tube 18 can be suitably reduced. At this time, the distal end portion 33a can be aligned with the outer lead 18c by expanding and contracting the conical coil spring 33 itself.
  • the spring portion 129 is configured by the cylindrical coil spring (coil spring) 34. In this way, a high vibration absorbing effect can be obtained at low cost.
  • the external connection part is constituted by an outer lead 18c protruding from the end part of the cold cathode tube 18, and the light source contact part 128 is constituted by a conical coil spring (conical coil spring) 33 into which the outer lead 18c is inserted.
  • the spring portion 129 is configured by a cylindrical coil spring (tubular coil spring) 34 connected to the conical coil spring 33. In this way, vibration can be satisfactorily absorbed by the cylindrical coil spring 34 that constitutes the spring portion 129, and secondary vibration is also caused by the conical coil spring 33 that constitutes the light source contact portion 128. Can be absorbed. Since the conical coil spring 33 is less likely to buckle and deform than the cylindrical coil spring 34, the outer lead 18c can be easily and reliably held in a connected state.
  • FIG. 11 A third embodiment of the present invention will be described with reference to FIG. 11 or FIG.
  • the cold cathode tube 218 is externally provided with a base 35 electrically connected to electrode portions 218 b arranged in the glass tube 218 a at both ends.
  • the base 35 has a cylindrical shape with one end closed, and is attached so as to cover the end of the glass tube 218a.
  • the light source contact portion 228 forming the holding portion 231 has an elastic holding piece 36 capable of elastically holding the base 35, and the spring portion 229 forming the vibration absorbing portion 232 is It is comprised by the leaf
  • the light source contact portion 228 includes a bottom portion 228a and a pair of elastic holding pieces 36 that rise from both ends of the bottom portion 228a toward the front side.
  • the pair of elastic holding pieces 36 can be elastically deformed with a rising base end from the bottom 228a as a fulcrum, and the base 35 of the cold cathode tube 218 can be elastically sandwiched therebetween.
  • the spring portion 229 is configured by a leaf spring having a predetermined width in the Y-axis direction, like the spring portion 29 of the first embodiment, but is bent halfway so that the cylindrical coil spring 34 of the second embodiment. Similar to the above, it is substantially V-shaped when viewed from the side.
  • the spring portion 229 is elastically deformed with the bending position and the connection position with the terminal body 227 as a fulcrum, and can be displaced mainly in the Z-axis direction along with the elastic deformation. Even with such a configuration, the vibration generated on the chassis 14 side can be satisfactorily absorbed by the spring portion 229, so that the vibration is transmitted to the base 35 side held by the elastic holding piece 36 in the light source contact portion 228. Can be suitably prevented.
  • the external connection portion is configured by the base 35 that is externally mounted on the end portion of the cold cathode tube 218, and the light source contact portion 228 can elastically hold the base.
  • the elastic holding piece 36 is used. In this way, the base 35 can be elastically held by the elastic holding piece 36, so that the mutual connection state can be improved.
  • FIG. 4 A fourth embodiment of the present invention will be described with reference to FIG.
  • connection terminal 324 is separated into a terminal main body 327 and a light source contact portion 328, which is a two-part configuration.
  • terminal body 327 and the light source contact portion 328 are connected by a separate lead wire 37, and the lead wire 37 constitutes a spring portion 329 and a vibration absorbing portion 332.
  • the lead wire 37 has sufficient rigidity to support the separation portion 26 and the light source contact portion 328 constituting the holding portion 331, and is elastic enough to absorb vibration from the chassis 14 (main body portion 330) side. It is supposed to have.
  • Embodiment 5 of the present invention will be described with reference to FIG.
  • a configuration in which the configuration of the vibration absorbing unit 432 is changed from the above-described fourth embodiment is shown.
  • action, and effect as above-mentioned Embodiment 4 is abbreviate
  • the vibration absorbing portion 432 connects the terminal body 427 and the light source contact portion 428 in the connection terminal 424, but is made of a metal material different from these and has a spring shape. Not configured. Specifically, the vibration absorbing portion 432 is made of a metal material having a relatively high internal loss compared to iron, stainless steel, aluminum, or the like that is the material of the connection terminal 424, and is made of, for example, magnesium. Magnesium is a material with a high internal loss among metals, and has high vibration absorption performance as its characteristics. Therefore, the vibration absorbing portion 432 according to the present embodiment can exhibit sufficient vibration absorbing performance even if it does not have a spring shape.
  • Embodiment 6 of the present invention will be described with reference to FIG.
  • a configuration in which the configuration of the vibration absorbing unit 532 is changed from the above-described first embodiment (the configuration having the separation unit 26) is shown.
  • action, and effect as above-mentioned Embodiment 1 is abbreviate
  • the vibration absorbing portion 532 includes a first vibration absorbing portion 532 a configured by the spring portion 29 of the connection terminal 24, and between the housing main body 25 and the separation portion 26 in the housing 23.
  • the second vibration absorbing portion 532b interposed between the first and second vibration absorbing portions 532b.
  • the second vibration absorbing portion 532 b is a separate component from the housing 23 and is made of a metal compression coil spring 38.
  • the compression coil spring 38 is fixed to at least one of the housing main body 25 and the separation portion 26 in a state where the axis thereof coincides with the Z-axis direction.
  • the compression coil spring 38 elastically expands and contracts in the Z-axis direction, so that the main body 30 and the holding part 31 can be relatively displaced mainly in the Z-axis direction.
  • vibrations can be absorbed not only by the elasticity of the spring portion 29 forming the first vibration absorbing portion 532a but also by the elasticity of the compression coil spring 38 forming the second vibration absorbing portion 532b. Therefore, a very high vibration absorbing performance can be exhibited, and it is more effective for preventing the cold cathode tube 18 from being damaged.
  • the vibration absorbing portion 532 includes the first vibration absorbing portion 532a included in the connection terminal 24 and the second vibration absorbing portion 532b interposed between the housing body 25 and the separating portion 26. (Compression coil spring 38). In this way, vibration can be absorbed not only by the first vibration absorbing portion 532a of the connection terminal 24 but also by the second vibration absorbing portion 532b interposed between the housing body 25 and the separating portion 26. Further, it is possible to more reliably prevent the cold cathode tube 18 from being damaged.
  • Embodiment 6 of this invention was shown, this invention is not restricted to the said embodiment, For example, the following modifications can also be included.
  • members similar to those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and illustration and description thereof may be omitted.
  • Modification 1 of Embodiment 6 Modification 1 of Embodiment 6 will be described with reference to FIG. Here, what changed the 2nd vibration absorption part 532b-1 is shown.
  • the second vibration absorbing portion 532 b-1 is made of a rubber material that is a kind of elastic material, and extends along the facing surface of the housing body 25 and the separation portion 26. It has a sheet shape.
  • a specific material of the second vibration absorbing portion 532b-1 a natural rubber material or a synthetic rubber material (for example, silicone rubber, urethane rubber, acrylic rubber, or the like) can be used. Such a configuration can also absorb vibrations satisfactorily.
  • the second vibration absorbing portion 532 b-2 includes an elastic piece 39 integrally formed with the housing body 525.
  • the elastic piece 39 has a plate spring shape that is zigzag when viewed from the side, and can elastically expand and contract in the Z-axis direction.
  • the distal end portion of the elastic piece 39 is in contact with the bottom surface of the separation portion 26, thereby elastically supporting the separation portion 26.
  • Such a configuration can also absorb vibrations satisfactorily.
  • the second vibration absorbing portion 532b-3 is attached to the elastic piece 39-3 having the same configuration as that of the above-described modification 2, and the tip of the elastic piece 39-3. It is comprised from the rubber sheet 40. That is, the elastic piece 39-3 elastically supports the separation part 26 via the rubber sheet 40. According to such a configuration, vibration can be absorbed by the elasticity of the rubber sheet 40 in addition to the elasticity of the elastic piece 39-3.
  • a specific material of the rubber sheet 40 a natural rubber material or a synthetic rubber material (for example, silicone rubber, urethane rubber, acrylic rubber, etc.) can be used.
  • connection terminal in which the housing is composed only of the housing body has been described.
  • the present invention also includes a two-part configuration including a separation portion and a separation portion. In that case, what is necessary is just to set it as the structure which accommodates the light source contact part in a connection terminal in a isolation
  • the conical coil spring is used as the light source contact portion.
  • other types of conical coil springs such as a pyramid coil spring can be used.
  • a coil spring for example, a cylindrical coil spring
  • two or more types of coil springs can be used as the light source contact portion, and two or more types of coil springs can be used as the spring portion (vibration absorbing portion). It is.
  • the vibration absorbing portion made of magnesium does not have a spring shape, but it is of course possible to form a spring portion in the vibration absorbing portion made of magnesium. By doing so, higher vibration absorption performance can be obtained.
  • connection terminal it is possible to omit the spring portion of the connection terminal and to have a configuration in which the connection terminal does not have a spring shape. That is, it is also possible to adopt a configuration in which vibration is absorbed only by the second vibration absorbing portion interposed between the housing body and the separating portion.
  • the second vibration absorbing portion is made of a rubber material, but an elastic material other than the rubber material, for example, a sponge material, a foamed material (foamed polystyrene or foamed urethane) It is of course possible to use Noaron (registered trademark), PORON (registered trademark), acrylic foam, nylon, vinyl, double-sided tape or the like as the material of the second vibration absorbing portion.
  • an elastic material other than the rubber material for example, a sponge material, a foamed material (foamed polystyrene or foamed urethane)
  • Noaron registered trademark
  • PORON registered trademark
  • acrylic foam nylon, vinyl, double-sided tape or the like
  • a straight tube type cold cathode tube is used as an example.
  • a curved type cold cathode tube such as a U-shaped cold cathode tube is also included in the present invention. It is.
  • liquid crystal panel and the chassis are illustrated in a vertically placed state in which the short side direction coincides with the vertical direction, but the liquid crystal panel and the chassis have the long side direction in the vertical direction. Those that are in a vertically placed state matched with are also included in the present invention.
  • a TFT is used as a switching element of a liquid crystal display device.
  • the present invention can also be applied to a liquid crystal display device using a switching element other than TFT (for example, a thin film diode (TFD)).
  • a switching element other than TFT for example, a thin film diode (TFD)
  • the present invention can also be applied to a liquid crystal display device for monochrome display.
  • the liquid crystal display device using the liquid crystal panel as the display panel has been exemplified.
  • the present invention can also be applied to a display device using another type of display panel.
  • the television receiver provided with the tuner is exemplified, but the present invention can be applied to a display device not provided with the tuner.
  • SYMBOLS 10 Liquid crystal display device (display device), 11 ... Liquid crystal panel (display panel), 12 ... Backlight device (illumination device), 14 ... Chassis, 18, 218 ... Cold cathode tube, 18c ... Outer lead (external connection part), 22, 122 ... Connector (relay part), 23, 123 ... Housing, 24, 124, 224, 324, 424 ... Connection terminal, 25, 125, 525 ... Housing body, 26 ... Separating part, 27, 127, 227, 427 ... Terminal body, 28, 128, 228, 328, 428 ... Light source contact part, 29, 129, 229, 329 ...

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  • Engineering & Computer Science (AREA)
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  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

L'invention a pour objectif d'empêcher la survenance de dommages d'une source de lumière dans un dispositif d'éclairage. Le dispositif de rétroéclairage (12) (dispositif d'éclairage) de l'invention est équipé : d'un tube à cathode froide (18) (source de lumière) possédant à son extrémité une broche de raccordement externe (18c) (unité de connexion externe); d'un châssis (14) logeant le tube à cathode froide (18); et d'un connecteur (22) (composant de jonction) qui assure la jonction d'une alimentation électrique au tube à cathode froide (18). Le connecteur (22) se compose : d'une unité corps principal (30) installée sur le châssis (14); d'une unité de support (31) qui supporte la broche de raccordement externe (18c); et d'une unité d'absorption de vibrations (32) qui tout en reliant l'unité corps principal (30) et l'unité de support (31), est capable d'absorber les vibrations.
PCT/JP2011/061942 2010-07-02 2011-05-25 Dispositif d'éclairage, dispositif d'affichage, et dispositif de réception de télévision Ceased WO2012002077A1 (fr)

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JP2010152284 2010-07-02
JP2010-152284 2010-07-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015070729A (ja) * 2013-09-30 2015-04-13 日本電産コパル株式会社 情報端末処理装置及び振動発生装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001110535A (ja) * 1999-10-12 2001-04-20 Kyouwa Device:Kk 蛍光ランプソケット
JP2004103458A (ja) * 2002-09-11 2004-04-02 Japan Storage Battery Co Ltd 紫外線照射装置
WO2010021189A1 (fr) * 2008-08-20 2010-02-25 シャープ株式会社 Appareil d'éclairage, appareil d'affichage et récepteur de télévision

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001110535A (ja) * 1999-10-12 2001-04-20 Kyouwa Device:Kk 蛍光ランプソケット
JP2004103458A (ja) * 2002-09-11 2004-04-02 Japan Storage Battery Co Ltd 紫外線照射装置
WO2010021189A1 (fr) * 2008-08-20 2010-02-25 シャープ株式会社 Appareil d'éclairage, appareil d'affichage et récepteur de télévision

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015070729A (ja) * 2013-09-30 2015-04-13 日本電産コパル株式会社 情報端末処理装置及び振動発生装置

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