WO2009110127A1 - バックライト装置、表示装置およびテレビジョン受像機 - Google Patents
バックライト装置、表示装置およびテレビジョン受像機 Download PDFInfo
- Publication number
- WO2009110127A1 WO2009110127A1 PCT/JP2008/068207 JP2008068207W WO2009110127A1 WO 2009110127 A1 WO2009110127 A1 WO 2009110127A1 JP 2008068207 W JP2008068207 W JP 2008068207W WO 2009110127 A1 WO2009110127 A1 WO 2009110127A1
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- WIPO (PCT)
- Prior art keywords
- connector member
- light source
- contact portion
- contact
- base
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
- H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
- H01R33/0827—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
Definitions
- the present invention relates to a backlight device, a display device, and a television receiver, and particularly to a backlight device, a display device, and a television receiver provided with a connector member that is electrically connected to a light source.
- a backlight device including a connector member that is electrically connected to a light source is known.
- 18 to 21 are views for explaining the structure of a connector member of a backlight device according to a conventional example.
- a conventional backlight device includes a light source 501 having a base 501a at an end, a connector member 502 electrically connected to the base 501a of the light source 501, and a connector. And a support substrate 503 to which the member 502 is attached.
- the connector member 502 includes a pair of sandwiching plates 502a that sandwich the base portion 501a of the light source 501 from both sides.
- the pair of holding plates 502a of the connector member 502 are pushed outward by the base portion 501a of the light source 501,
- the light source 501 is disposed at a predetermined position on the connector member 502. That is, the light source 501 is positioned with respect to the connector member 502 simultaneously with applying a predetermined force to the light source 501.
- the backlight device when the light source 501 is attached to the connector member 502 even when the position of the light source 501 is not shifted with respect to the connector member 502 (normal state), the base portion 501a of the light source 501 is attached. As a result, a force (reaction force) is applied from the connector member 502 to the light source 501 as much as the pair of sandwiching plates 502a of the connector member 502 are expanded. For this reason, when the light source 501 is attached to the connector member 502 in a state where the position of the light source 501 is shifted with respect to the connector member 502 (emergency state), a greater force (reaction force) from the connector member 502 to the light source 501 than in the normal state.
- This Patent Document 1 includes a housing including a contact (contact portion) electrically connected to an electrode wire (contact portion) provided at an end portion of a cold cathode tube (light source), and a cover attached to the housing.
- a cold cathode tube connector (connector member) provided is disclosed.
- the contacts of the housing are provided with a pair of movable pieces that sandwich the electrode wire of the cold cathode tube from both sides. Further, the pair of movable pieces are arranged with a gap larger than the diameter of the electrode wire of the cold cathode tube.
- the cover is provided with operating protrusions that sandwich the pair of movable pieces from both sides.
- the electrode wire of the cold cathode tube is disposed between the pair of movable pieces of the housing.
- the pair of movable pieces are arranged with an interval larger than the diameter of the electrode wire of the cold cathode tube, the electrode wire of the cold cathode tube does not contact the pair of movable pieces, It is arranged between the movable pieces.
- the operating projection of the cover sandwiches the pair of movable pieces of the housing from both sides, and the pair of movable pieces of the connector member is electrically connected to the electrode wire of the cold cathode tube.
- Patent Document 1 when the cold cathode tube is disposed between the pair of movable pieces, no force is applied to the cold cathode tube in a state where the position of the cold cathode tube is not shifted from the housing (normal state). . For this reason, a force (reaction force) is applied to the cold cathode tube from the housing or the like in an attempt to place the cold cathode tube between the pair of movable pieces in a state where the position of the cold cathode tube is deviated from the housing (emergency state). It can be determined that the position of the cold cathode tube is deviated from the housing. JP 2007-165208 A
- Patent Document 1 in order to electrically connect the electrode wire (connecting portion) of the cold cathode tube (light source) to the pair of movable pieces of the housing, it is necessary to attach a cover having an operation protrusion to the housing. . For this reason, there are problems that the assembly process becomes complicated and the number of parts increases.
- the present invention has been made to solve the above-described problems, and the object of the present invention is to suppress the assembly process from being complicated, to suppress an increase in the number of parts, and To provide a backlight device, a display device, and a television receiver capable of satisfactorily electrically connecting a light source to a connector member.
- a backlight device includes a light source having a base at an end, and a connector member electrically connected to the base of the light source.
- the base part includes a first contact part that extends in a first direction intersecting the axial direction of the light source, and the connector member includes a second contact part that contacts the first contact part of the base part, from the central axis of the light source.
- the distance to the second contact portion of the connector member is greater than the distance from the central axis of the light source to the end portion in the second direction intersecting the first direction of the first contact portion of the base portion, and It is smaller than the distance from the central axis to the end portion in the first direction of the first contact portion of the base portion.
- the distance from the central axis of the light source to the second contact portion of the connector member is set to the first direction of the first contact portion of the base portion from the central axis of the light source.
- the 2nd contact part of a connector member can be arrange
- the first contact portion of the base portion is changed to the second contact portion of the connector member in a state in which the end portion in the second direction of the first contact portion of the base portion faces the second contact portion side of the connector member.
- the connector member can be disposed at a predetermined position (positioned with respect to the connector member) without contact. For this reason, when an attempt is made to place the light source at a predetermined position of the connector member in a state where the position of the light source is shifted (emergency state) with respect to the connector member, the connector is caused by the force (reaction force) applied to the light source from the connector member or the like. It can be determined that the position of the light source is shifted with respect to the member.
- the light source can be arranged at a predetermined position of the connector member in a state where the position of the light source is not shifted from the connector member (normal state). Further, the distance from the central axis of the light source to the second contact portion of the connector member is made smaller than the distance from the central axis of the light source to the end of the first contact portion of the base portion in the first direction. Is disposed at a predetermined position of the connector member, and the end portion of the first contact portion of the base portion in the first direction faces the second contact portion side of the connector member with the base portion as the center axis of the light source. By rotating in this manner, the first contact portion of the base portion can be brought into contact with the second contact portion of the connector member. As described above, the light source can be favorably electrically connected to the connector member.
- the light source can be satisfactorily connected to the connector member simply by rotating the base after the light source is arranged at a predetermined position of the connector member by being configured as described above. Therefore, the assembly process can be prevented from becoming complicated. In addition, since it is not necessary to separately provide a member for electrically connecting the light source to the connector member, an increase in the number of components can be suppressed.
- the second contact portion of the connector member includes a plurality, and the plurality of second contact portions of the connector member are mutually in the second direction of the first contact portion.
- the first contact portions are arranged at intervals larger than the width and at intervals smaller than the length of the first contact portion in the first direction. If comprised in this way, the distance from the center axis
- the first contact portion of the base portion is placed at a predetermined position of the connector member in a state where the first contact portion of the base portion does not contact the second contact portion of the connector member.
- the first contact portion of the base portion is electrically connected to the second contact portion of the connector member by rotating the base portion by a predetermined angle around the central axis of the light source. If comprised in this way, it will suppress easily that an assembly process becomes complicated, and it will suppress easily that a number of parts increases, and it will connect a light source easily to a connector member satisfactorily. Can do.
- the second contact portion of the connector member has a plurality of convex portions and a concave portion disposed between the plurality of convex portions, and the base portion is the connector member.
- the first contact portion of the base portion is disposed in the concave portion of the second contact portion of the connector member. If comprised in this way, in the state which the 1st contact part of the nozzle
- the base part can be prevented from moving (rotating) with respect to the connector member.
- the base portion can be easily determined whether or not the base portion is disposed in the concave portion of the second contact portion of the connector member. That is, it can be easily determined whether or not the base part is electrically connected to the connector member satisfactorily. As a result, assembly workability can be improved.
- the base portion in a state where the first contact portion of the base portion is disposed in the concave portion of the second contact portion of the connector member, the base portion can be prevented from moving (rotating) with respect to the connector member. It can suppress that a light source remove
- the plurality of convex portions of the connector member are formed so as to protrude toward the base portion side. If comprised in this way, after arrange
- the second contact portion of the connector member includes a leaf spring, and the first contact portion of the base portion. Is disposed at a predetermined position of the connector member, and then the base portion is rotated by a predetermined angle about the central axis of the light source, so that the first contact portion of the base portion becomes the convex portion of the second contact portion of the connector member. By abutting, the protruding amount of the convex portion of the second contact portion of the connector member is reduced, and the second contact portion of the connector member extends in a direction intersecting the axial direction of the light source.
- die part can be arrange
- the connector member preferably includes a first restricting portion for restricting the second contact portion from moving in the axial direction of the light source. If comprised in this way, when the 1st contact part of a nozzle
- the connector member preferably includes a second restricting portion for restricting the light source from moving in the axial direction of the light source. If comprised in this way, it can control easily that a light source moves to an axial direction.
- the base portion is provided with a shaft portion extending in the axial direction of the light source and connected to the first contact portion, and the connector member is formed of the base portion.
- the shaft portion is inserted, and an insertion portion that restricts movement of the shaft portion of the base portion in a direction orthogonal to the axial direction of the light source is included. If comprised in this way, a light source can be easily positioned with respect to a connector member by inserting the axial part of a nozzle
- the first contact portion of the base portion is composed of two and is disposed symmetrically with respect to the central axis of the light source, and the second contact portion of the connector member Are arranged in parallel to each other so as to extend in a direction orthogonal to the axial direction of the light source.
- the two first contact portions arranged symmetrically with respect to the central axis of the light source are provided on the base portion, and two second contact portions are provided on the connector member, whereby two second contact portions of the base portion are provided.
- the first contact portion of the base portion is formed in a columnar shape or a cylindrical shape. If comprised in this way, when the 1st contact part of a nozzle
- the base portion includes a pair of base portions provided at both end portions in the axial direction of the light source, and the connector member is provided outside the both end portions in the axial direction of the light source. It consists of a pair of connector member arrange
- a display device includes the above backlight device and a display panel illuminated by the backlight device. With this configuration, a display device that can suppress the assembly process from being complicated, suppress an increase in the number of components, and can electrically connect the light source to the connector member satisfactorily. Obtainable.
- a television receiver includes the above display device, a cabinet that houses the display device, a tuner, and a speaker. If comprised in this way, while suppressing that an assembly process becomes complicated, it suppresses that a number of parts increases, and it is a television receiver which can connect a light source to a connector member favorably You can get a chance.
- the present invention it is possible to suppress the assembly process from becoming complicated, to suppress an increase in the number of parts, and to electrically connect the light source to the connector member satisfactorily.
- a simple backlight device, display device, and television receiver can be easily obtained.
- FIG. 1 is an exploded perspective view illustrating a structure of a liquid crystal display device including a backlight device according to an embodiment of the present invention. It is the perspective view which showed the structure of the cold cathode fluorescent lamp of the backlight apparatus shown in FIG.
- FIG. 3 is a perspective view illustrating a structure of the backlight device illustrated in FIG. 2.
- FIG. 3 is a perspective view illustrating a structure of a connector member of the backlight device illustrated in FIG. 2. It is sectional drawing which showed the structure of the connector member and cold cathode fluorescent lamp of the backlight apparatus shown in FIG.
- FIG. 3 is a perspective view illustrating a structure of the backlight device illustrated in FIG. 2.
- FIG. 1st modification of this invention It is the perspective view which showed the structure of the cold cathode fluorescent lamp by the 2nd modification of this invention. It is the perspective view which showed the structure of the cold cathode fluorescent lamp by the 3rd modification of this invention. It is the perspective view which showed the structure of the connector member and light source of the backlight apparatus by a prior art example.
- FIG. 1st modification of this invention It is the perspective view which showed the structure of the cold cathode fluorescent lamp by the 2nd modification of this invention. It is the perspective view which showed the structure of the cold cathode fluorescent lamp by the 3rd modification of this invention. It is the perspective view which showed the structure of the connector member and light source of the backlight apparatus by a prior art example.
- FIG. 19 is a front view for explaining the structure of the connector member of the backlight device according to the conventional example shown in FIG. 18.
- FIG. 19 is a front view for explaining the structure of the connector member of the backlight device according to the conventional example shown in FIG. 18.
- FIG. 19 is a front view for explaining the structure of the connector member of the backlight device according to the conventional example shown in FIG. 18.
- liquid crystal television receiver 1 including a backlight device 20 according to an embodiment of the present invention will be described with reference to FIGS.
- the liquid crystal television receiver 1 is an example of the “television receiver” in the present invention.
- a liquid crystal television receiver 1 including a backlight device 20 includes a liquid crystal display device 10 including the backlight device 20 and a front cabinet that houses the liquid crystal display device 10. 2 and rear cabinet 3, speaker 4 attached to front cabinet 2, tuner 5, power source 6, and support member 7. Since the front cabinet 2, the rear cabinet 3, the speaker 4, the tuner 5, the power source 6, and the support member 7 that are conventionally used can be applied, each will be briefly described.
- the liquid crystal display device 10 is an example of the “display device” in the present invention, and the front cabinet 2 and the rear cabinet 3 are examples of the “cabinet” in the present invention.
- the front cabinet 2 and the rear cabinet 3 house a liquid crystal display device 10, a tuner 5 and a power source 6.
- the tuner 5 has a function of generating an image signal and an audio signal of a predetermined channel from the received radio wave.
- the speaker 4 has a function of emitting sound based on the sound signal generated by the tuner 5.
- the power source 6 is configured to supply power to the liquid crystal display device 10, the speaker 4, and the tuner 5.
- the liquid crystal display device 10 is supported by the support member 7.
- the speaker 4, the tuner 5, and the power source 6 may be assembled in the liquid crystal display device 10.
- the liquid crystal display device 10 is disposed on the back side of a bezel 11 having an opening 11 a, a liquid crystal display panel unit 12 having a peripheral edge covered with the bezel 11, and the liquid crystal display panel unit 12. It is constituted by a direct type backlight device 20.
- the liquid crystal display panel unit 12 includes a liquid crystal display panel 120 and a frame-like chassis 121 that supports the peripheral portion of the liquid crystal display panel 120.
- the liquid crystal display panel 120 includes an AM substrate (active matrix substrate) 120a and a counter substrate 120b disposed to face the AM substrate 120a.
- the liquid crystal display panel 120 functions as a display panel when illuminated by the backlight device 20.
- the liquid crystal display panel 120 is an example of the “display panel” in the present invention.
- the backlight device 20 includes a reflection sheet 22, a cold cathode fluorescent lamp 23, a plurality of connector members 24 disposed outside both ends of the cold cathode fluorescent lamp 23, and a connector member on the front surface 21 a side of the chassis 21.
- a pair of cover members 25 covering 24 and a plurality of optical sheets 26 are arranged.
- a pair of inverter boards 27 that are electrically connected to the connector member 24 are disposed on the rear surface 21 b side of the chassis 21.
- the cold cathode fluorescent lamp 23 is an example of the “light source” in the present invention.
- the chassis 21 is made of a metal plate made of an aluminum plate or the like.
- the chassis 21 has a pair of side portions formed by bending a metal plate vertically toward the front side.
- a plurality of insertion holes 21 c are formed in the vicinity of both ends in the longitudinal direction (A direction) of the chassis 21 at a predetermined interval in the short direction (B direction) of the chassis 21.
- the reflection sheet 22 is composed of a sheet member capable of irregularly reflecting light and is placed on the front surface 21 a of the chassis 21.
- a plurality of insertion holes 22 a are formed in the vicinity of both end portions in the A direction of the reflection sheet 22 at positions corresponding to the plurality of insertion holes 21 c of the chassis 21.
- the length of the reflection sheet 22 in the A direction may be smaller than the interval in the A direction of the insertion hole 21 c of the chassis 21.
- the sheet member constituting the reflection sheet 22 is made of, for example, PET (polyethylene terephthalate) resin.
- the cold cathode fluorescent lamp 23 is composed of a plurality of straight tube fluorescent tubes, and is disposed on the front side of the reflection sheet 22. That is, the plurality of cold cathode fluorescent lamps 23 are covered with the reflection sheet 22 on the back side. As a result, part of the light emitted from the cold cathode fluorescent lamp 23 is diffusely reflected by the reflection sheet 22 and travels forward.
- the plurality of cold cathode fluorescent lamps 23 are arranged so as to extend along the A direction, and are arranged at predetermined intervals along the B direction.
- a pair of metal caps 23a are provided at both ends of the cold cathode fluorescent lamp 23, and the wire harness is not connected.
- each base portion 23a is integrally provided with a shaft portion 23b extending in the axial direction (D direction) of the cold cathode fluorescent lamp 23 and a columnar terminal portion 23c connected to the shaft portion 23b.
- Contact portions 23d arranged symmetrically with respect to the central axis O1 of the cold cathode fluorescent lamp 23 are provided at both ends in the E direction (direction orthogonal to the D direction) of the terminal portion 23c.
- the terminal portion 23c (connecting portion 23d) is formed to extend in the (E direction) of the cold cathode fluorescent lamp 23.
- the contact portion 23d is an example of the “first contact portion” in the present invention.
- the E direction is an example of the “first direction” in the present invention.
- the cold cathode fluorescent lamp 23 is fixed to the chassis 21 and electrically connected to the cold cathode fluorescent lamp 23 in the pair of base portions 23 a of the cold cathode fluorescent lamp 23.
- a pair of connector members 24 are attached. As shown in FIG. 2, the connector member 24 is inserted into the insertion hole 22 a of the reflection sheet 22 and the insertion hole 21 c of the chassis 21 and is electrically connected to the inverter board 27. Further, the pair of connector members 24 are disposed so as to sandwich the base portion 23a of the cold cathode fluorescent lamp 23 in the A direction.
- the connector member 24 includes two connector terminal portions 240 made of metal leaf springs, and a resin main body portion 241 that houses the connector terminal portions 240.
- the connector terminal portion 240 is an example of the “second contact portion” in the present invention.
- the connector terminal portion 240 has one end fixed to the main body 241 and the other end not fixed.
- the two connector terminal portions 240 extend in the C direction (direction perpendicular to the A direction and the B direction) perpendicular to the front surface 21 a (see FIG. 2) of the chassis 21. Are arranged in parallel to each other. Specifically, the two connector terminal portions 240 are spaced from each other by a distance W11 larger than the width W1 in the F direction (direction orthogonal to the D direction and the E direction) of the terminal portion 23c (contact portion 23d).
- the terminal part 23c (contact part 23d) of the base part 23a of the cathode fluorescent lamp 23 is arranged with a gap W11 smaller than the length L1 in the E direction. That is, as shown in FIG.
- a distance W12 ( W11 / 2) from the central axis O1 of the cold cathode fluorescent lamp 23 to the connector terminal 240.
- the F direction is an example of the “second direction” in the present invention.
- the connector terminal portion 240 has two convex portions 240 a that protrude inward in the A direction (on the base portion 23 a side of the cold cathode fluorescent lamp 23), A recess 240b is formed between the two protrusions 240a.
- a terminal portion 23c (contact portion 23d) of 23a is arranged. That is, the terminal portion 23c (contact portion 23d) of the base portion 23a of the cold cathode fluorescent lamp 23 is sandwiched between the two convex portions 240a.
- the connector terminal portion 240 is configured to extend in the C direction.
- the main body portion 241 of the connector member 24 has a function of preventing the connector terminal portion 240 from being electrically connected to the chassis 21 or the like. Moreover, the main-body part 241 has four side surfaces 241a, 241b, 241c, and 241d, as shown in FIG.
- the side surface 241a is an example of the “second regulating portion” in the present invention
- the side surface 241c is an example of the “first regulating portion” and the “second regulating portion” in the present invention.
- An insertion portion 241e extending in the C direction is formed on the side surface 241a. As shown in FIG. 8, the insertion portion 241e is formed so that the shaft portion 23b of the base portion 23a of the cold cathode fluorescent lamp 23 is inserted. In addition, the insertion portion 241e moves the shaft portion 23b of the base portion 23a toward the chassis 21 in the B direction or the C direction with the shaft portion 23b of the base portion 23a of the cold cathode fluorescent lamp 23 inserted. Has a function to regulate.
- the side surface 241a is inserted when the shaft portion 23b of the base portion 23a of the cold cathode fluorescent lamp 23 is inserted into the insertion portion 241e and in a state where the shaft portion 23b of the base portion 23a of the cold cathode fluorescent lamp 23 is inserted. It also has a function of restricting the cold cathode fluorescent lamp 23 from moving outside in the A direction (D direction).
- the side surface 241c is formed at a predetermined distance from the connector terminal portion 240 of the connector member 24 in the A direction.
- the side surface 241c is formed so that the cold cathode fluorescent lamp 23 is placed outside the A direction (D direction) in a state where the terminal portion 23c (contact portion 23d) of the cold cathode fluorescent lamp 23 is attached to the connector terminal portion 240 of the connector member 24. It has a function to restrict movement.
- the side surface 241c comes into contact with the connector terminal portion 240, It has a function of suppressing the connector terminal portion 240 from being deformed outward in the A direction. Thereby, the connector terminal part 240 tends to extend in the C direction.
- the side surface 241c may be configured not to contact the connector terminal portion 240.
- a cover member 25 is fixed to the chassis 21 so as to cover the connector member 24 (see FIG. 4).
- the cover member 25 has a function of suppressing dust and the like from entering between the connector member 24 and the cold cathode fluorescent lamp 23.
- the optical sheet 26 is constituted by a lens sheet, a diffusion sheet, or the like, and is disposed on the front side of the cold cathode fluorescent lamp 23.
- the optical sheet 26 collects or diffuses the light emitted from the cold cathode fluorescent lamp 23.
- FIG. 6, FIG. 7, FIG. 9 to FIG. 11, FIG. 13 and FIG. 14 the mounting process of the cold cathode fluorescent lamp 23 to the connector member 24 of the backlight device 20 according to one embodiment of the present invention. explain.
- the shaft portion 23 b of the base portion 23 a of the cold cathode fluorescent lamp 23 is inserted into the insertion portion 241 e of the side surface 241 a of the main body portion 241 of the connector member 24. At this time, it inserts so that the terminal part 23c (contact part 23d) of the nozzle
- the terminal portion 23c (contact portion 23d) of the base portion 23a is inserted into the insertion portion 241e in a state of being arranged so as to extend along the C direction.
- the terminal portion 23c (contact portion 23d) of the base portion 23a is disposed between the two connector terminal portions 240 of the connector member 24, and the cold cathode fluorescent lamp 23 is
- the body portion 241 is positioned at a predetermined position by the insertion portion 241e on the side surface 241a of the body portion 241. Note that when the cold cathode fluorescent lamp 23 is positioned at a predetermined position of the main body 241, no force (reaction force) is applied to the cold cathode fluorescent lamp 23 from the main body 241.
- the base part 23a of the cold cathode fluorescent lamp 23 is rotated by a predetermined angle about the central axis O1 (see FIG. 7) of the cold cathode fluorescent lamp 23, so that the cold cathode fluorescent lamp is shown in FIG.
- the terminal part 23 c (contact part 23 d) of the base part 23 a of 23 comes into contact with one convex part 240 a of the connector terminal part 240 of the connector member 24.
- the connector terminal part 240 is extended in the C direction. At this time, the connector terminal portion 240 contacts the side surface 241c of the main body portion 241. At this time, the connector terminal portion 240 may not be in contact with the side surface 241c of the main body portion 241.
- the base part 23a of the cold cathode fluorescent lamp 23 is further rotated around the central axis O1 (see FIG. 4) of the cold cathode fluorescent lamp 23, so that the cold cathode fluorescent lamp is shown in FIGS.
- the terminal part 23c (contact part 23d) of the base part 23a of 23 is placed in the concave part 240b and is sandwiched between the two convex parts 240a. Thereby, the cold cathode fluorescent lamp 23 is electrically connected to the connector terminal portion 240 of the connector member 24 satisfactorily.
- the cold cathode fluorescent lamp 23 is attached to the connector member 24 of the backlight device 20.
- the cold cathode fluorescent lamp 23 is positioned with respect to the connector member 24 (a state where the shaft portion 23b of the base portion 23a is inserted into the insertion portion 241e of the main body portion 241 of the connector member 24). Then, the distance W12 from the central axis O1 of the cold cathode fluorescent lamp 23 to the connector terminal portion 240 of the connector member 24 is set to F of the contact portion 23d (terminal portion 23c) of the base portion 23a from the central axis O1 of the cold cathode fluorescent lamp 23.
- the shaft portion 23b of the base portion 23a is connected to the connector member 24 in a state where the contact portion 23d (terminal portion 23c) of the base portion 23a is arranged so as to extend in the C direction by making it larger than the distance W2 to the end portion in the direction.
- the contact portion 23d (terminal portion 23c) of the base portion 23a is inserted into the connector end of the connector member 24 by being inserted into the insertion portion 241e of the main body portion 241. Without contacting the part 240 can be positioned relative to the connector member 24 (disposed in a predetermined position of the connector member 24).
- the connector is connected to the cold cathode fluorescent lamp 23. It can be determined that the position of the cold cathode fluorescent lamp 23 is displaced with respect to the connector member 24 by the force (reaction force) applied from the main body 241 or the like of the member 24. As a result, the cold cathode fluorescent lamp 23 can be positioned with respect to the connector member 24 in a state where the position of the cold cathode fluorescent lamp 23 is not shifted from the connector member 24 (normal state).
- the distance W12 from the central axis O1 of the cold cathode fluorescent lamp 23 to the connector terminal portion 240 of the connector member 24 is set to E of the contact portion 23d (terminal portion 23c) of the base portion 23a from the central axis O1 of the cold cathode fluorescent lamp 23.
- the base portion 23a (cold cathode fluorescent lamp 23) is centered on the central axis O1, for example.
- the contact portion 23 d of the base portion 23 a can be brought into contact with the connector terminal portion 240 of the connector member 24. From the above, the cold cathode fluorescent lamp 23 can be satisfactorily electrically connected to the connector member 24.
- the cold cathode fluorescent lamp 23 is simply rotated by rotating the base portion 23a (cold cathode fluorescent lamp 23). Can be satisfactorily electrically connected to the connector member 24, so that the mounting process (assembly process) can be prevented from becoming complicated. Further, since it is not necessary to separately provide a member for electrically connecting the cold cathode fluorescent lamp 23 to the connector terminal portion 240 of the connector member 24, an increase in the number of components can be suppressed.
- the two connector terminal portions 240 of the connector member 24 are separated from each other by a distance W11 larger than the width W1 of the contact portion 23d in the F direction, and from the length L1 of the contact portion 23d in the E direction. Are arranged with a small interval W11.
- W11 larger than the width W1 of the contact portion 23d in the F direction
- L1 of the contact portion 23d in the E direction are arranged with a small interval W11.
- the distance W2 from the central axis O1 of the cold cathode fluorescent lamp 23 to the end portion in the E direction of the contact part 23d of the base part 23a can be made smaller than the distance L2.
- the cold cathode fluorescent lamp 23 can be easily and satisfactorily electrically connected to the connector member 24.
- the contact portion 23 d of the base portion 23 a is disposed in the recess 240 b of the connector terminal portion 240 of the connector member 24 in a state where the base portion 23 a is electrically connected to the connector member 24. Accordingly, the contact portion 23d of the base portion 23a is sandwiched between the two convex portions 240a of the connector member 24 in a state where the contact portion 23d of the base portion 23a is disposed in the concave portion 240b of the connector terminal portion 240 of the connector member 24. The rotation of the contact portion 23d of the base portion 23a with respect to the connector member 24 can be restricted.
- the base part 23a By rotating the cold cathode fluorescent lamp 23), the contact portion 23 d of the base portion 23 a can be easily disposed in the concave portion 240 b of the connector terminal portion 240 of the connector member 24.
- the contact portion 23d of the base portion 23a abuts on the convex portion 240a of the connector terminal portion 240 of the connector member 24, so that the protruding amount of the convex portion 240a of the connector terminal portion 240 of the connector member 24 is small.
- the connector terminal portion 240 of the connector member 24 is configured to extend in the C direction. Accordingly, the contact portion 23d of the base portion 23a can be more easily disposed in the recess 240b of the connector terminal portion 240 of the connector member 24. Therefore, the base portion 23a can be more easily connected to the connector terminal of the connector member 24.
- the portion 240 can be electrically connected well.
- the connector terminal part 240 of the connector member 24 is configured by a leaf spring
- the contact part 23d of the base part 23a is disposed in the recess 240b of the connector terminal part 240 of the connector member 24
- the connector member The 24 connector terminal portions 240 can be easily returned to the original shape.
- the contact part 23d of the base part 23a can be easily sandwiched between the two convex parts 240a of the connector member 24.
- the base portion 23a is provided by providing the main body portion 241 of the connector member 24 with the side surface 241c that restricts the connector terminal portion 240 from moving in the axial direction (D direction) of the cold cathode fluorescent lamp 23.
- the contact portion 23d contacts the convex portion 240a of the connector terminal portion 240, it is possible to restrict the connector terminal portion 240 from moving in the axial direction (D direction) of the cold cathode fluorescent lamp 23.
- the protrusion amount of the convex part 240a of the connector terminal part 240 can be reduced, and the connector terminal part 240 can be extended in the C direction.
- the main body 241 of the connector member 24 with the side surface 241c, it is possible to restrict the connector terminal 240 from moving in the axial direction (D direction) of the cold cathode fluorescent lamp 23. It is possible to regulate the movement of the cold cathode fluorescent lamp 23 in the axial direction (D direction) of the cold cathode fluorescent lamp 23 after attaching 23 to the main body 241 of the connector member 24.
- the main body 241 of the connector member 24 is provided with a side surface 241a for restricting the cold cathode fluorescent lamp 23 from moving in the axial direction (D direction) of the cold cathode fluorescent lamp 23.
- the cold cathode fluorescent lamp 23 can be restricted from moving in the axial direction (D direction). It can be easily arranged at 24 predetermined positions.
- the side surface portion 241a of the connector member 24 is provided with the insertion portion 241e having a function of restricting the movement of the shaft portion 23b of the base portion 23a toward the chassis 21 in the B direction or the C direction.
- the cold cathode fluorescent lamp 23 can be easily positioned with respect to the main body portion 241 of the connector member 24 by inserting the shaft portion 23b of the base portion 23a into the insertion portion 241e of the main body portion 241.
- the base portion 23a is provided with two contact portions 23d arranged symmetrically with respect to the central axis O1 of the cold cathode fluorescent lamp 23, and the connector member 24 is provided with two connector terminal portions 240.
- the force (reaction force) from the connector member 24 is applied to the two contacts of the base portion 23a.
- the portions 23d can be evenly added.
- the contact portion 23d (terminal portion 23c) of the base portion 23a is formed in a cylindrical shape, the contact portion 23d of the base portion 23a is brought into contact with the connector terminal portion 240 of the connector member 24.
- the contact portion 23 d of the base portion 23 a can be prevented from being caught on the surface of the connector terminal portion 240. Thereby, the cold cathode fluorescent lamp 23 can be easily electrically connected to the connector terminal portion 240 of the connector member 24.
- the pair of connector members 24 arranged outside both ends in the axial direction (D direction) of the cold cathode fluorescent lamp 23 are connected to both ends in the axial direction (D direction) of the cold cathode fluorescent lamp 23.
- the cold cathode fluorescent lamp 23 can be easily and electrically connected to the connector member 24 by sandwiching the pair of base portions 23a provided on the base plate in the axial direction (D direction) of the cold cathode fluorescent lamp 23. be able to.
- the display panel, the display device, and the television receiver are applied to a liquid crystal display panel, a liquid crystal display device, and a liquid crystal television receiver.
- the present invention is not limited thereto.
- the present invention may be applied to display panels, display devices, and television receivers other than liquid crystal display panels, liquid crystal display devices, and liquid crystal television receivers.
- the connector terminal portion 240 may be disposed on the inner side in the A direction than the terminal portion 23 c of the cold cathode fluorescent lamp 23.
- the present invention is not limited to this, and the second embodiment of the present invention shown in FIG.
- the cold cathode fluorescent lamp 123 according to the modification only one contact portion 123d may be provided on the terminal portion 123c of the base portion 123a of the cold cathode fluorescent lamp 123.
- the terminal part (contact part) of the base part of the cold cathode fluorescent lamp was shown about the example formed in the column shape, this invention is not limited to this,
- the base part of a cold cathode fluorescent lamp is shown.
- the terminal portion (contact portion) may be formed in a shape other than a cylindrical shape, for example, a quadrangular prism shape.
- the terminal portion 223c of the base portion 223a of the cold cathode fluorescent lamp 223 is formed in a substantially disc shape, and the terminal portion 223c You may provide the contact part 223d by making one part protrude.
Landscapes
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Description
2 フロントキャビネット(キャビネット)
3 リアキャビネット(キャビネット)
4 スピーカ
5 チューナ
10 液晶表示装置(表示装置)
20 バックライト装置
23、123、223 冷陰極蛍光ランプ(光源)
23a、123a、223a 口金部
23b 軸部
23d、123d、223d 接触部(第1接触部)
24、24a コネクタ部材
120 液晶表示パネル(表示パネル)
240 コネクタ端子部(第2接触部)
240a 凸部
240b 凹部
241a 側面(第2規制部)
241c 側面(第1規制部、第2規制部)
241e 挿入部
O1 中心軸
Claims (14)
- 端部に口金部を有する光源と、
前記光源の口金部に電気的に接続されるコネクタ部材とを備え、
前記光源の口金部は、前記光源の軸方向と交差する第1の方向に延びる第1接触部を含み、
前記コネクタ部材は、前記口金部の第1接触部に接触する第2接触部を含み、
前記光源の中心軸から前記コネクタ部材の第2接触部までの距離は、前記光源の中心軸から前記口金部の第1接触部の前記第1の方向と交差する第2の方向の端部までの距離よりも大きく、かつ、前記光源の中心軸から前記口金部の第1接触部の前記第1の方向の端部までの距離よりも小さいことを特徴とするバックライト装置。 - 前記コネクタ部材の第2接触部は、複数からなり、
前記コネクタ部材の複数の第2接触部は、互いに、前記第1接触部の前記第2の方向の幅よりも大きい間隔で、かつ、前記第1接触部の前記第1の方向の長さよりも小さい間隔を隔てて配置されていることを特徴とする請求項1に記載のバックライト装置。 - 前記口金部の第1接触部が前記コネクタ部材の第2接触部に接触しない状態で、前記口金部の第1接触部を前記コネクタ部材の所定の位置に配置した後、前記口金部を前記光源の中心軸を中心として所定の角度だけ回転することにより、前記口金部の第1接触部が前記コネクタ部材の第2接触部に電気的に接続されることを特徴とする請求項1に記載のバックライト装置。
- 前記コネクタ部材の第2接触部は、複数の凸部と、前記複数の凸部の間に配置される凹部とを有し、
前記口金部が前記コネクタ部材に電気的に接続された状態で、前記口金部の第1接触部は、前記コネクタ部材の第2接触部の凹部に配置されていることを特徴とする請求項1に記載のバックライト装置。 - 前記コネクタ部材の複数の凸部は、前記口金部側に突出するように形成されていることを特徴とする請求項4に記載のバックライト装置。
- 前記コネクタ部材の第2接触部は、板バネからなり、
前記口金部の第1接触部を前記コネクタ部材の所定の位置に配置した後、前記口金部を前記光源の中心軸を中心として所定の角度だけ回転することにより、前記口金部の第1接触部が前記コネクタ部材の第2接触部の凸部に当接することによって、前記コネクタ部材の第2接触部の凸部の突出量が小さくなるとともに、前記コネクタ部材の第2接触部が前記光源の軸方向と交差する方向に伸長することを特徴とする請求項5に記載のバックライト装置。 - 前記コネクタ部材は、前記第2接触部が前記光源の軸方向に移動するのを規制するための第1規制部を含むことを特徴とする請求項6に記載のバックライト装置。
- 前記コネクタ部材は、前記光源が前記光源の軸方向に移動するのを規制するための第2規制部を含むことを特徴とする請求項1に記載のバックライト装置。
- 前記口金部には、前記光源の軸方向に延びるとともに、前記第1接触部に接続された軸部が設けられており、
前記コネクタ部材は、前記口金部の軸部が挿入されるとともに、前記口金部の軸部が前記光源の軸方向と直交する方向に移動するのを規制する挿入部を含むことを特徴とする請求項1に記載のバックライト装置。 - 前記口金部の第1接触部は、2つからなるとともに、前記光源の中心軸に対して対称に配置されており、
前記コネクタ部材の第2接触部は、2つからなるとともに、前記光源の軸方向と直交する方向に延びるように、互いに平行に配置されていることを特徴とする請求項1に記載のバックライト装置。 - 前記口金部の第1接触部は、円柱形状または円筒形状に形成されていることを特徴とする請求項1に記載のバックライト装置。
- 前記口金部は、前記光源の前記軸方向の両端部に設けられた一対の口金部からなり、
前記コネクタ部材は、前記光源の前記軸方向の両端部の外側に配置された一対のコネクタ部材からなり、
前記一対のコネクタ部材の第2接触部は、前記一対の口金部を前記光源の軸方向に挟み込むように構成されていることを特徴とする請求項1に記載のバックライト装置。 - 請求項1~12のいずれか1項に記載のバックライト装置と、
前記バックライト装置により照明される表示パネルとを備えることを特徴とする表示装置。 - 請求項13に記載の表示装置と、
前記表示装置を収納するキャビネットと、
チューナと、
スピーカとを備えることを特徴とするテレビジョン受像機。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US12/918,488 US8388206B2 (en) | 2008-03-04 | 2008-10-07 | Backlight device, display device and television receiver |
CN200880126993XA CN101946374B (zh) | 2008-03-04 | 2008-10-07 | 背光源装置、显示装置和电视接收机 |
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JP2008-052836 | 2008-03-04 | ||
JP2008052836 | 2008-03-04 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2008/068207 WO2009110127A1 (ja) | 2008-03-04 | 2008-10-07 | バックライト装置、表示装置およびテレビジョン受像機 |
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US (1) | US8388206B2 (ja) |
CN (1) | CN101946374B (ja) |
WO (1) | WO2009110127A1 (ja) |
Cited By (1)
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JP2014078531A (ja) * | 2013-12-27 | 2014-05-01 | Toshiba Lighting & Technology Corp | ソケットおよび照明装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5649079U (ja) * | 1979-09-21 | 1981-05-01 | ||
JPS622174U (ja) * | 1985-06-21 | 1987-01-08 | ||
JPS624086U (ja) * | 1985-06-25 | 1987-01-12 | ||
JP2004335227A (ja) * | 2003-05-06 | 2004-11-25 | Japan Aviation Electronics Industry Ltd | ランプ保持構造 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4226102B2 (ja) | 1998-05-15 | 2009-02-18 | パナソニック フォト・ライティング 株式会社 | 照明装置 |
JP2005166638A (ja) * | 2003-11-10 | 2005-06-23 | Matsushita Electric Ind Co Ltd | 冷陰極蛍光ランプおよび当該冷陰極蛍光ランプを搭載したバックライトユニット |
CN100353620C (zh) * | 2005-04-01 | 2007-12-05 | 友达光电股份有限公司 | 灯管夹持暨电连接装置及灯管装卸方法 |
KR100774581B1 (ko) * | 2005-06-09 | 2007-11-09 | 삼성전자주식회사 | 램프고정부, 이를 갖는 백라이트 어셈블리 및 이를 갖는 표시 장치 |
JP2006344602A (ja) | 2005-06-09 | 2006-12-21 | Samsung Electronics Co Ltd | ランプ、ランプホルダー、電源供給モジュール、それを有するバックライトアセンブリ及び表示装置 |
JP4753705B2 (ja) | 2005-12-16 | 2011-08-24 | 日本端子株式会社 | 冷陰極管用コネクタ |
KR101327853B1 (ko) * | 2007-06-08 | 2013-11-12 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 이용한 액정표시장치 |
JP4298766B2 (ja) * | 2007-06-21 | 2009-07-22 | 日本航空電子工業株式会社 | バックライト組立体とそれに用いられるコネクタ |
-
2008
- 2008-10-07 WO PCT/JP2008/068207 patent/WO2009110127A1/ja active Application Filing
- 2008-10-07 CN CN200880126993XA patent/CN101946374B/zh not_active Expired - Fee Related
- 2008-10-07 US US12/918,488 patent/US8388206B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5649079U (ja) * | 1979-09-21 | 1981-05-01 | ||
JPS622174U (ja) * | 1985-06-21 | 1987-01-08 | ||
JPS624086U (ja) * | 1985-06-25 | 1987-01-12 | ||
JP2004335227A (ja) * | 2003-05-06 | 2004-11-25 | Japan Aviation Electronics Industry Ltd | ランプ保持構造 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014078531A (ja) * | 2013-12-27 | 2014-05-01 | Toshiba Lighting & Technology Corp | ソケットおよび照明装置 |
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US20110069239A1 (en) | 2011-03-24 |
CN101946374B (zh) | 2013-01-09 |
CN101946374A (zh) | 2011-01-12 |
US8388206B2 (en) | 2013-03-05 |
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