WO2010041496A1 - Illuminating device and liquid crystal display device - Google Patents

Illuminating device and liquid crystal display device Download PDF

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Publication number
WO2010041496A1
WO2010041496A1 PCT/JP2009/061373 JP2009061373W WO2010041496A1 WO 2010041496 A1 WO2010041496 A1 WO 2010041496A1 JP 2009061373 W JP2009061373 W JP 2009061373W WO 2010041496 A1 WO2010041496 A1 WO 2010041496A1
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WO
WIPO (PCT)
Prior art keywords
harness
board
liquid crystal
crystal display
fluorescent tube
Prior art date
Application number
PCT/JP2009/061373
Other languages
French (fr)
Japanese (ja)
Inventor
志芳 張
Original Assignee
シャープ株式会社
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Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2010041496A1 publication Critical patent/WO2010041496A1/en

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    • 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
    • G02F1/133608—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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details

Definitions

  • the present invention relates to an illumination device such as a backlight unit, and a liquid crystal display device using light from the illumination device.
  • a backlight unit which is a lighting device, is mounted to supply light to a non-light emitting liquid crystal display panel.
  • a fluorescent tube is mounted as a light source that emits light.
  • the end of the fluorescent tube 111 is connected to a harness connection type connector 121 via a harness 113, and the harness connection type connector 121 is connected to an inverter board 123.
  • the board-mounted connector 122 to be mounted on is fitted.
  • the lengths 121L of the harness connection type connector 121 and the board mounting type connector 122 The length 122L is along the parallel direction p of the fluorescent tubes 111. Therefore, the length of the inverter board (mounting board) 123 along the parallel direction p is not shortened, and as a result, the length of the parallel direction p in the backlight unit cannot be shortened. Miniaturization is not achieved).
  • the length of the backlight unit in the parallel direction p is shortened for downsizing, the number of fluorescent tubes 111 is relatively small, and the interval between the fluorescent tubes 111 is relatively small. become longer. Then, due to the relatively long interval between the fluorescent tubes 111, the shape of the fluorescent tube 111 is reflected in the planar light, and light amount unevenness called lamp unevenness occurs.
  • the present invention has been made to solve the above problems. And the objective is to provide the small illuminating device which radiate
  • the illuminating device is connected to each of the mounting substrate including the substrate wiring that can be energized, the plurality of first connection portions mounted on the mounting substrate, and the first connection portions at the electrical connection portion of the substrate wiring.
  • a second connection part having a shape including a long side and a short side, a plurality of energizable wirings extending from the second connection part, and a linear light source connected to each wiring are included.
  • the second connecting portion in the plurality of wirings connected to one longitudinal length in the second connecting portion, at least one wiring has a different length from the other wiring, so that the second connecting portion has its longitudinal shape linear. While approaching the extending direction of the light source, its own short side is brought close to the arrangement direction of the linear light sources. And, the first connection part has a shape similar to the second connection part, while matching the long side of the second connection part with its long side and the short side of the second connection part, Connect to the second connection.
  • the first connection portion connected to the second connection portion arranges its short side along one direction (for example, the alignment direction of the linear light sources) on the mounting substrate. For this reason, as many first connection portions as possible can be mounted in a limited space in one direction on the mounting substrate, and a relatively small mounting substrate may be used. Therefore, this lighting device tends to be small.
  • the 2nd connection part makes the own longitudinal direction parallel or incline with respect to the extending direction of a linear light source
  • a 1st connection part makes an own longitudinal direction with respect to the alignment direction of a linear light source. They may be parallel or inclined.
  • a liquid crystal display device including the above lighting device and a liquid crystal display panel that receives light from the lighting device can be said to be the present invention.
  • the mounting board may be small.
  • the lighting device tends to be small.
  • the light from the lighting device includes unevenness in the amount of light such as lamp unevenness due to the small number of linear light sources. I can't.
  • FIG. 3 is a simplified plan view mainly showing a fluorescent tube, a harness, a harness connection type connector, a board mounted connector, and an inverter board included in the backlight unit. These are the simplified top views which show another example of FIG. These are the elements on larger scale which mainly showed the harness, the harness connection type connector, the board
  • FIG. 5 is a partially enlarged plan view showing another example of FIGS. 3 and 4.
  • FIG. 6 is a partially enlarged plan view showing another example of FIGS. 3 to 5;
  • FIG. 3 is an exploded perspective view of a liquid crystal display device.
  • FIG. 5 is a partially enlarged plan view showing another example of FIGS. 3 and 4.
  • FIG. 6 is a partially enlarged plan view showing another example of FIGS. 3 to 5;
  • FIG. 3 is an exploded perspective view of a liquid crystal display device.
  • FIG. 3 is a perspective view of a back surface side of a backlight chassis included in the liquid crystal display device. These are the perspective views which mainly showed the harness, the harness connection type connector, the board
  • FIG. 4 is an exploded perspective view showing a state where the harness connection type connector and the board mounting type connector are not fitted together. These are the simplified top views which mainly showed the fluorescent tube, harness, harness connection type connector, board
  • FIG. 7 is an exploded perspective view of the liquid crystal display device (display device) 59.
  • a liquid crystal display device 59 includes a liquid crystal display panel 49, a backlight unit 39, a housing HG (front housing HG1 and back housing HG2) that houses the liquid crystal display panel 49 and the backlight unit 39, including.
  • the liquid crystal display panel 49 bonds an active matrix substrate 41 including a switching element such as a TFT (Thin Film Transistor) and a counter substrate 42 facing the active matrix substrate 41 with a sealant (not shown). Then, liquid crystal (not shown) is injected into the gap between the substrates 41 and 42 (note that the polarizing films 43 and 43 are attached so as to sandwich the active matrix substrate 41 and the counter substrate 42).
  • a switching element such as a TFT (Thin Film Transistor)
  • a counter substrate 42 facing the active matrix substrate 41 with a sealant (not shown).
  • the liquid crystal display panel 49 is a non-light-emitting display panel, the display function is exhibited by receiving light from the backlight unit 39 (backlight light). Therefore, if the light from the backlight unit 39 can uniformly irradiate the entire surface of the liquid crystal display panel 49, the display quality of the liquid crystal display panel 49 is improved.
  • the backlight unit 39 includes a fluorescent tube (light source, linear light source) 11, a lamp holder 31, a backlight chassis (chassis) 32, a reflection sheet 33, a diffusion sheet 34, and lens sheets 35 and 36.
  • Fluorescent tube 11 has a linear shape (bar shape, columnar shape, etc.) and is mounted in plural in backlight unit 39 (however, for convenience, only a part of the number is shown in the drawing).
  • An electrode (not shown) of the fluorescent tube 11 is held in the socket 12, and a harness (wiring) 13 for receiving a current supply extends from the socket 12 (in short, the harness 13 which is a wiring that can be energized). Connected to the fluorescent tube 11).
  • a harness connection type connector (second connection portion) 21 connected to the fluorescent tube 11 via the two harnesses 13 and the two sockets 12 serves as an electrical connection portion for the two fluorescent tubes 11.
  • the harness connection type connector 21 has a shape including a long side 21L and a short side 21S, and the two harnesses 13 are mounted side by side on the long side 21L. Along the direction (longitudinal direction) of the long side 21L in the connection type connector 21 ⁇ .
  • harness connection type connector 21 is connected to the back surface 32Br from the front surface 32Bf of the backlight chassis 32 through the connector sheet opening 33HC formed in the reflection sheet 33 and the connector chassis opening 32HC formed in the backlight chassis 32. (See FIG. 8 described later).
  • the type of the fluorescent tube 11 is not limited, and may be a cold cathode tube or a hot cathode tube, for example.
  • the direction in which the fluorescent tubes 11 are arranged is referred to as an arrangement direction P, and the direction in which the fluorescent tubes 11 extend is referred to as an extension direction Q.
  • the lamp holder 31 is a set of two block members and holds the fluorescent tube 11. More specifically, one lamp holder 31 supports one end at both ends of the fluorescent tube 11, and the other lamp holder 31 supports the other end at both ends of the fluorescent tube 11, so that the fluorescent tube 11 is mounted on the backlight unit 39. .
  • the backlight chassis 32 is a box-shaped container including a bottom portion 32B and a wall portion 32W rising from the bottom portion 32B.
  • the backlight chassis 32 accommodates various members such as the fluorescent tube 11 (note that the fluorescent tube 11 is spread on the bottom portion 32B of the backlight chassis 32 and has one surface of the bottom portion 32B facing the fluorescent tube 11 as a surface. 32Bf, the back side of the front surface 32Bf is referred to as the back surface 32Br).
  • a boss (not shown) is generated when a part of the back surface 32Br of the bottom 32B is raised.
  • a screw (not shown) is fastened to the boss while an inverter board 23 described later is interposed, and the inverter board 23 is attached to the backlight chassis 32.
  • the reflection sheet 33 is a reflection member that is covered with the plurality of fluorescent tubes 11 by covering the surface 32Bf of the bottom 32B of the backlight chassis 32. Therefore, the reflection sheet 33 reflects the light from the fluorescent tube 11. More specifically, the reflection sheet 33 reflects a part of the radial light emitted from the fluorescent tube 11 (radial light centered on the fluorescent tube 11) and guides it to the diffusion sheet 34.
  • constituent member of the backlight chassis 32 itself may be made of a resin or metal having a reflective function. This is because the reflection sheet 33 can be removed if this is the case.
  • the diffusion sheet 34 is located so as to cover the parallel fluorescent tubes 11 (and thus the surface 32Bf of the backlight chassis 32), diffuses the light from the fluorescent tubes 11, and distributes the light throughout the liquid crystal display panel 49. .
  • the diffusion sheet 34 and the lens sheets 35 and 36 are optical sheets that refract light and are also referred to as optical sheet groups.
  • the lens sheet 35 is, for example, an optical sheet that has a prism shape in the sheet surface and narrows the directivity of light, and is positioned so as to cover the diffusion sheet 34. Therefore, the lens sheet 35 collects the light traveling from the diffusion sheet 34 and improves the luminance.
  • the lens sheet 36 is an optical sheet that is positioned so as to cover the lens sheet 35 and transmits a polarized light component in one direction and reflects a polarized light component orthogonal to the transmitted polarized light component.
  • the lens sheet 36 improves the luminance on the liquid crystal display panel 49 by reflecting and reusing the polarization component absorbed by the polarizing film 43.
  • the light from the parallel fluorescent tubes 11 reaches the diffusion sheet 34 directly, or is diffused after being reflected by the reflection sheet 33 covering the bottom 32B of the backlight chassis 32.
  • the sheet 34 is reached. Further, the light that has reached the diffusion sheet 34 passes through the lens sheets 35 and 36 while being diffused, and is emitted as backlight light with enhanced emission luminance.
  • the backlight reaches the liquid crystal display panel 49, and the liquid crystal display panel 49 displays an image.
  • the front housing HG1 and the rear housing HG2, which are the housings HG, are fixed while sandwiching the above-described backlight unit 39 and the liquid crystal display panel 49 covering the backlight unit 39 (how to fix are particularly limited). Not) That is, the front housing HG1 sandwiches the backlight unit 39 and the liquid crystal display panel 49 together with the back housing HG2, thereby completing the liquid crystal display device 59.
  • the diffusion sheet 34 and the lens sheets 35 and 36 are stacked and accommodated in this order in the rear housing HG2, and this stacking direction is referred to as an overlapping direction R (note that the alignment direction P and the extension in the fluorescent tube 11 extend).
  • the overlapping direction R may be orthogonal to the direction Q).
  • FIG. 1 and FIGS. 8 to 10 are used to show the harness 13, the harness connection connector 21 connected to the fluorescent tube 11 through the harness 13, and the connection destination of the harness connection connector 21.
  • the board-mounted connector 22 will be described in detail (note that FIG. 1 and FIGS. 2 to 6 described later are simplified plan views, and the socket 12 and the like are omitted).
  • the inverter unit UT is located on the back surface 32Br of the backlight chassis 32.
  • the inverter unit UT includes various circuits such as an inverter circuit, a board-mounted connector (first connection portion) 22, and an inverter board 23 that is a mounting board that incorporates a board wiring that can be energized (not shown).
  • an inverter circuit a board-mounted connector (first connection portion) 22
  • an inverter board 23 that is a mounting board that incorporates a board wiring that can be energized (not shown).
  • the board surface of the inverter board 23 on which the inverter circuit and the board-mounted connector 22 are mounted is referred to as a front board face 23f, and the board face behind the front board face 23f is referred to as a back board face 23r).
  • the inverter circuit is composed of various circuits such as a booster circuit (inverter transformer) 24, and is a circuit used for driving the fluorescent tube 11 (in FIG. 8, for convenience, the inverter transformer 24 in the inverter circuit is shown in FIG. It is mainly illustrated).
  • a booster circuit inverter transformer
  • FIG. 8 the inverter transformer 24 in the inverter circuit is shown in FIG. It is mainly illustrated.
  • the board-mounted connector 22 is attached to the same surface as the front board surface 23f of the inverter board 23 on which the inverter transformer 24 is mounted, and is connected to the inverter circuit through board wiring (not shown) (wiring arranged on the inverter board 23). Connected. That is, the board-mounted connector 22 is an electrical connection portion for the inverter circuit.
  • the board-mounted connector 22 supplies an alternating current to the fluorescent tube 11 by fitting into a harness-connecting connector 21 that connects two harnesses 13 extending from the socket 12 (the shape of the board-mounted connector 22 is It is similar to the shape of the harness connection type connector 21). That is, the electrical connection between the inverter circuit and the fluorescent tube 11 is made by fitting the board-mounted connector 22 attached to the inverter board 23 and the harness-connecting connector 21 that connects two harnesses 13 extending from the socket 12. Realized (see white arrow in FIG. 8).
  • FIG. 9 which is a partially enlarged view
  • FIG. 10 which is an exploded perspective view of FIG. 9
  • the harness connection type connector 21 positioned on the back surface 32Br side of the backlight chassis 32 is mounted on the inverter board 23. It moves toward the mold connector 22 (see the white arrow in FIG. 10). Then, an alternating current from the inverter circuit flows to the fluorescent tube 11 via the substrate wiring (not shown), the substrate mounting connector 22, the harness connection connector 21, the harness 13, and the socket 12. As a result, the fluorescent tube 11 is driven by an alternating current.
  • FIG. 1 In FIG. 1, the backlight chassis 32 is omitted, and the inverter board 23 and the fluorescent tube 11 are the same. It is a plan view shown side by side on the surface.
  • one harness 13L has a different length from the other one harness 13S.
  • the one end 21L1 of the harness connection type connector 21 to which the longer harness 13L is connected is less subject to restrictions based on the length of the harness 13 than the other end 21L2 of the harness connection type connector 21 to which the shorter harness 13S is connected.
  • the other end 21L2 of the harness connection type connector 21 connected to the harness 13S is fixed at a certain position with respect to the fluorescent tubes 11 arranged in a row due to a restriction caused by the length of the harness 13S.
  • the harness 13L has the same length as the harness 13S
  • the one end 21L1 of the harness connection type connector 21 connected to the harness 13L is also caused by the length of the harness 13L, similarly to the other end 21L2 of the harness connection type connector 21.
  • the harness connection type connector 21 makes its own length 21L orthogonal to the extending direction Q of the fluorescent tube 11 (the arrangement direction P of the fluorescent tubes 11 and the length 21L of the harness connection type connector 21 are parallel). Relationship).
  • the one end 21L1 of the harness connection type connector 21 connected to the harness 13L can extend the movement distance compared to the other end 21L2 of the harness connection type connector 21 by an amount longer than the harness 13S. .
  • the harness connection type connector 21 brings its long side 21L closer to the extending direction Q of the fluorescent tube 11 and brings its short side 21S closer to the arrangement direction P of the fluorescent tube 11.
  • the extending direction Q of the fluorescent tube 11 and the long side 21L of the harness connection type connector 21 are in a parallel relationship, and the arrangement direction P of the fluorescent tube 11 and the short side 21S of the harness connection type connector 21 Are in parallel).
  • the board-mounted connector 22 has a shape similar to that of the harness-connecting connector 21, and is longer than the longer length 21 ⁇ / b> L of the harness-connected connector 21 and shorter than 21 ⁇ / b> S of the harness-connected connector 21. Are connected to the harness connection type connector 21 while matching the short sides 22S of the two.
  • the board-mounted connector 22 keeps its short 22S along a limited space along one direction (for example, the arrangement direction P of the fluorescent tubes 11).
  • the board-mounted connectors 22 are arranged along one direction with their long sides 22L facing each other).
  • the number of fluorescent tubes 11 is relatively small, so that the lamp unevenness reflecting the shape of the fluorescent tubes 11 is caused by the backlight. It is not included in the light from the unit 39.
  • the harness connection type connector 21 makes its long side 21 ⁇ / b> L parallel to the extending direction Q of the fluorescent tube 11, while its short side 21 ⁇ / b> S is aligned in the direction P of the fluorescent tube 11. It was made parallel to. However, it is not limited to this.
  • the harness connection type connector 21 tilts its own long side 21 ⁇ / b> L with respect to the extending direction Q of the fluorescent tube 11, and its own short side 21 ⁇ / b> S with respect to the alignment direction P of the fluorescent tube 11.
  • the board-mounted connector 22 has its own length 22L with respect to the length 21L of the harness connection type connector 21 and its own short side 22S with respect to the short side 21S of the harness connection type connector 21). Are connected to the harness connection type connector 21).
  • a backlight unit 39 Even in such a backlight unit 39, as many board-mounted connectors 22 as possible can be mounted in a limited space in the arrangement direction P of the fluorescent tubes 11 on the inverter board 23.
  • a backlight unit 39 has as many board-mounted connectors 22 as possible as compared with the backlight unit 39 in which the alignment direction P of the fluorescent tubes 11 and the longitudinal length 22L of the board-mounted connector 22 are parallel to each other.
  • the inverter board 23 can be mounted in a limited space in the arrangement direction P of the fluorescent tubes 11.
  • the lamp unevenness reflecting the shape of the fluorescent tube 11 is caused by the relatively small number of the fluorescent tubes 11. It is not included in the light from 39. Moreover, in such a backlight unit 39, the length of the inverter board 23 in one direction can be shortened, and the backlight unit 39 can be downsized.
  • this backlight unit 39 even if there are a plurality of sets composed of the two fluorescent tubes 11, the harnesses 13 (13L and 13S), and the harness connection type connector 21, all the sets have the same specifications. Therefore, in the manufacturing process of the backlight unit 39, the identification of the set becomes unnecessary, and the manufacturing efficiency is improved (in short, this backlight unit 39 also has the function and effect related to the backlight unit 39 in the first embodiment). Plays).
  • the harness 13 (13L, 13M, 13S) connected to one longitudinal portion 21L in the harness connection type connector 21 may be three or more.
  • the lengths of the harnesses 13L, 13M, and 13S shown in FIG. 3 are different (13L> 13M> 13S), but are not limited thereto.
  • at least one wiring 13 ⁇ / b> S may have a different length from the other wirings 13 ⁇ / b> L and 13 ⁇ / b> L in the harness 13 connected to one longitudinal portion 21 ⁇ / b> L in the harness connection type connector 21.
  • the harnesses 13 and 13 having the same length are connected to one and the other of the two opposing longitudinal lengths 21 ⁇ / b> L and 21 ⁇ / b> L, thereby the harness connection type connector 21.
  • the long side 21 ⁇ / b> L of the self may be brought close to the extending direction Q of the fluorescent tube 11, and the short side 21 ⁇ / b> S of the self may be made close to the arranging direction P of the fluorescent tube 11.
  • the harnesses 13 ⁇ / b> S and 13 ⁇ / b> S having the same length are connected to one and the other of the two opposing long lengths 21 ⁇ / b> L and 21 ⁇ / b> L.
  • a harness 13L longer than 13S may be connected.
  • the harness connection type connector 21 can bring its long side 21L closer to the extending direction Q of the fluorescent tube 11 and further bring its short side 21S closer to the arranging direction P of the fluorescent tube 11. It is done. In short, it is only necessary that the harness-connected connector 21 has its long side 21L brought closer to the extending direction P of the fluorescent tube 11 and further its own short side 21S brought closer to the arranging direction P of the fluorescent tube 11.
  • the board-mounted connectors 22 are arranged in a limited space along the arrangement direction P of the fluorescent tubes 11 along the short side 22S of their own, and as much as possible. This is because the fluorescent tube 11 can be mounted on the backlight unit 39.

Abstract

A backlight unit (39) wherein the two harnesses (13L, 13S) connected to one long side (21L) of a harness-connecting connector (21) have different lengths, thereby making it possible to bring the short side (21S) thereof closer to the arrangement direction (P) of fluorescent tubes (11), while bringing the long side (21L) thereof closer to the extending direction (Q) of the fluorescent tubes (11).

Description

照明装置および液晶表示装置Illumination device and liquid crystal display device
　本発明は、バックライトユニットのような照明装置、およびその照明装置からの光を利用する液晶表示装置に関する。 The present invention relates to an illumination device such as a backlight unit, and a liquid crystal display device using light from the illumination device.
　液晶表示装置では、非発光型の液晶表示パネルに対して光を供給すべく、照明装置であるバックライトユニットが搭載される。そして、バックライトユニットでは、光を発する光源として、例えば蛍光管が搭載される。 In a liquid crystal display device, a backlight unit, which is a lighting device, is mounted to supply light to a non-light emitting liquid crystal display panel. In the backlight unit, for example, a fluorescent tube is mounted as a light source that emits light.
　バックライトユニットにおける蛍光管の搭載の仕方は色々ある。一例として、特許文献１に開示されるような、複数の蛍光管を並べるタイプが挙げられる。このようなバックライトユニットでは、複数の蛍光管から出射される光がまとまって面状光となり、その面状光が液晶表示パネルの広範囲に行き渡る。 There are various ways to mount fluorescent tubes in the backlight unit. As an example, there is a type in which a plurality of fluorescent tubes are arranged as disclosed in Patent Document 1. In such a backlight unit, light emitted from a plurality of fluorescent tubes is combined into planar light, and the planar light spreads over a wide area of the liquid crystal display panel.
特開２００８－２３５１１１号公報JP 2008-235111 A
　ところで、蛍光管を搭載するバックライトユニットでは、例えば、図１１に示すように、蛍光管１１１の端がハーネス１１３を介してハーネス接続型コネクタ１２１につながり、そのハーネス接続型コネクタ１２１がインバータ基板１２３に実装される基板搭載型コネクタ１２２に嵌り合う。 By the way, in a backlight unit equipped with a fluorescent tube, for example, as shown in FIG. 11, the end of the fluorescent tube 111 is connected to a harness connection type connector 121 via a harness 113, and the harness connection type connector 121 is connected to an inverter board 123. The board-mounted connector 122 to be mounted on is fitted.
　そして、均一の長さを有する２本のハーネス１１３が直線状になりつつ、ハーネス接続型コネクタ１２１の長手１２１Ｌにつながっていると、そのハーネス接続型コネクタ１２１の長手１２１Ｌおよび基板搭載型コネクタ１２２の長手１２２Ｌが、蛍光管１１１の並列方向ｐに沿うことになる。そのため、並列方向ｐに沿うインバータ基板（実装基板）１２３の長さは短くならず、ひいては、バックライトユニットでの並列方向ｐの長さの短縮化が図られない（要は、バックライトユニットの小型化が達成されない）。 When the two harnesses 113 having a uniform length are connected to the length 121L of the harness connection type connector 121 while being linear, the lengths 121L of the harness connection type connector 121 and the board mounting type connector 122 The length 122L is along the parallel direction p of the fluorescent tubes 111. Therefore, the length of the inverter board (mounting board) 123 along the parallel direction p is not shortened, and as a result, the length of the parallel direction p in the backlight unit cannot be shortened. Miniaturization is not achieved).
　また、小型化のために、バックライトユニットでの並列方向ｐの長さの短縮化を図ろうとすると、蛍光管１１１の本数が比較的少なくなってしまい、それら蛍光管１１１同士の間隔が比較的長くなる。すると、蛍光管１１１同士の比較的長い間隔に起因して、蛍光管１１１の形状が面状光に反映され、ランプムラと呼ばれる光量ムラが生じる。 In addition, if the length of the backlight unit in the parallel direction p is shortened for downsizing, the number of fluorescent tubes 111 is relatively small, and the interval between the fluorescent tubes 111 is relatively small. become longer. Then, due to the relatively long interval between the fluorescent tubes 111, the shape of the fluorescent tube 111 is reflected in the planar light, and light amount unevenness called lamp unevenness occurs.
　本発明は、上記の問題点を解決するためになされたものである。そして、その目的は、光量ムラを含まない光を出射する小型な照明装置、およびその照明装置を搭載する液晶表示装置を提供することにある。 The present invention has been made to solve the above problems. And the objective is to provide the small illuminating device which radiate | emits the light which does not contain the light quantity nonuniformity, and the liquid crystal display device carrying the illuminating device.
　照明装置は、通電可能な基板配線を含む実装基板と、基板配線の電気的な接続部で、実装基板に実装される複数の第１接続部と、第１接続部毎に接続されており、長手および短手を含む形状である第２接続部と、第２接続部から延び出る複数の通電可能な配線と、配線毎につながる線状光源と、を含む。 The illuminating device is connected to each of the mounting substrate including the substrate wiring that can be energized, the plurality of first connection portions mounted on the mounting substrate, and the first connection portions at the electrical connection portion of the substrate wiring. A second connection part having a shape including a long side and a short side, a plurality of energizable wirings extending from the second connection part, and a linear light source connected to each wiring are included.
　この照明装置では、第２接続部における１つの長手につながる複数の配線では、少なくとも１本の配線が他の配線と異なる長さを有することで、第２接続部が、自身の長手を線状光源の延び方向に近づけつつ、自身の短手を線状光源の並び方向に近づける。そして、第１接続部は、第２接続部と相似な形状で、第２接続部の長手に対して自身の長手、第２接続部の短手に対して自身の短手を一致させつつ、第２接続部に接続する。 In this lighting device, in the plurality of wirings connected to one longitudinal length in the second connecting portion, at least one wiring has a different length from the other wiring, so that the second connecting portion has its longitudinal shape linear. While approaching the extending direction of the light source, its own short side is brought close to the arrangement direction of the linear light sources. And, the first connection part has a shape similar to the second connection part, while matching the long side of the second connection part with its long side and the short side of the second connection part, Connect to the second connection.
　このようになっていると、第２接続部に接続される第１接続部が、自身の短手を、実装基板における一方向（例えば、線状光源の並び方向）に沿わせながら並べる。そのため、実装基板における一方向の限られたスペースに、極力多くの第１接続部が実装可能になり、比較的小さな実装基板でもよくなる。したがって、この照明装置は小型になりやすい。 In this case, the first connection portion connected to the second connection portion arranges its short side along one direction (for example, the alignment direction of the linear light sources) on the mounting substrate. For this reason, as many first connection portions as possible can be mounted in a limited space in one direction on the mounting substrate, and a relatively small mounting substrate may be used. Therefore, this lighting device tends to be small.
　また、照明装置に極力多くの線状光源も搭載可能になるので、線状光源の数が比較的少ないことに起因して、線状光源の形状を反映するランプムラが照明装置からの光に含まれなくなる。 In addition, since it is possible to mount as many linear light sources as possible in the lighting device, lamp unevenness reflecting the shape of the linear light source is included in the light from the lighting device due to the relatively small number of linear light sources. It will not be.
　なお、第２接続部が、自身の長手を、線状光源の延び方向に対して平行または傾斜にさせており、第１接続部が、自身の長手を、線状光源の並び方向に対して平行または傾斜させていてもよい。 In addition, the 2nd connection part makes the own longitudinal direction parallel or incline with respect to the extending direction of a linear light source, and a 1st connection part makes an own longitudinal direction with respect to the alignment direction of a linear light source. They may be parallel or inclined.
　また、以上のような照明装置と、その照明装置からの光を受ける液晶表示パネルと、を含む液晶表示装置も、本発明といえる。 Also, a liquid crystal display device including the above lighting device and a liquid crystal display panel that receives light from the lighting device can be said to be the present invention.
　本発明によれば、限られた実装基板の一方向に、線状光源への電流供給に要する第１接続部を極力多く実装可能になるので、実装基板が小さくてもかまわず、その結果、照明装置が小型になりやすい。その上、比較的小さな実装基板にかかわらず、線状光源も極力多く搭載可能になるので、線状光源の数が少ないことに起因するランプムラのような光量ムラが、照明装置からの光に含まれない。 According to the present invention, it is possible to mount as many first connection portions as necessary for supplying current to the linear light source in one direction of a limited mounting board, so the mounting board may be small. The lighting device tends to be small. In addition, since it is possible to mount as many linear light sources as possible regardless of the relatively small mounting board, the light from the lighting device includes unevenness in the amount of light such as lamp unevenness due to the small number of linear light sources. I can't.
は、バックライトユニットに含まれる蛍光管、ハーネス、ハーネス接続型コネクタ、基板搭載型コネクタ、およびインバータ基板を主体的に示した簡略平面図である。FIG. 3 is a simplified plan view mainly showing a fluorescent tube, a harness, a harness connection type connector, a board mounted connector, and an inverter board included in the backlight unit. は、図１の別例を示す簡略平面図である。These are the simplified top views which show another example of FIG. は、ハーネス、ハーネス接続型コネクタ、基板搭載型コネクタ、およびインバータ基板を主体的に示した部分拡大平面図である。These are the elements on larger scale which mainly showed the harness, the harness connection type connector, the board | substrate mounting type connector, and the inverter board | substrate. は、図３の別例を示す部分拡大平面図である。These are the partial enlarged plan views which show another example of FIG. は、図３および図４の別例を示す部分拡大平面図である。FIG. 5 is a partially enlarged plan view showing another example of FIGS. 3 and 4. は、図３～図５の別例を示す部分拡大平面図である。FIG. 6 is a partially enlarged plan view showing another example of FIGS. 3 to 5; は、液晶表示装置の分解斜視図である。FIG. 3 is an exploded perspective view of a liquid crystal display device. は、液晶表示装置に含まれるバックライトシャーシの裏面側をみた斜視図である。FIG. 3 is a perspective view of a back surface side of a backlight chassis included in the liquid crystal display device. は、ハーネス、ハーネス接続型コネクタ、基板搭載型コネクタ、インバータ基板を主体的に示した斜視図である。These are the perspective views which mainly showed the harness, the harness connection type connector, the board | substrate mounting type connector, and the inverter board | substrate. はハーネス接続型コネクタと基板搭載型コネクタとが嵌り合っていない状態を示す分解斜視図である。FIG. 4 is an exploded perspective view showing a state where the harness connection type connector and the board mounting type connector are not fitted together. は、従来のバックライトユニットに含まれる蛍光管、ハーネス、ハーネス接続型コネクタ、基板搭載型コネクタ、およびインバータ基板を主体的に示した簡略平面図である。These are the simplified top views which mainly showed the fluorescent tube, harness, harness connection type connector, board | substrate mounting type connector, and inverter board which were included in the conventional backlight unit.
　［実施の形態１］
　実施の一形態について、図面に基づいて説明すれば、以下の通りである。なお、便宜上、ハッチングや部材符号等を省略する場合もあるが、かかる場合、他の図面を参照するものとする。また、図面上での黒丸は紙面に対し垂直方向を意味する。 [Embodiment 1]
The following describes one embodiment with reference to the drawings. For convenience, hatching, member codes, and the like may be omitted, but in such a case, other drawings are referred to. Moreover, the black circle on the drawing means a direction perpendicular to the paper surface.
　図７は、液晶表示装置（表示装置）５９の分解斜視図である。この図に示すように、液晶表示装置５９は、液晶表示パネル４９と、バックライトユニット３９と、液晶表示パネル４９およびバックライトユニット３９を収容するハウジングＨＧ（表ハウジングＨＧ１・裏ハウジングＨＧ２）と、を含む。 FIG. 7 is an exploded perspective view of the liquid crystal display device (display device) 59. As shown in this figure, a liquid crystal display device 59 includes a liquid crystal display panel 49, a backlight unit 39, a housing HG (front housing HG1 and back housing HG2) that houses the liquid crystal display panel 49 and the backlight unit 39, including.
　液晶表示パネル４９は、ＴＦＴ（Thin　Film　Transistor）等のスイッチング素子を含むアクティブマトリックス基板４１と、このアクティブマトリックス基板４１に対向する対向基板４２とをシール材（不図示）で貼り合わせる。そして、両基板４１・４２の隙間に不図示の液晶が注入される（なお、アクティブマトリックス基板４１および対向基板４２を挟むように、偏光フィルム４３・４３が取り付けられる）。 The liquid crystal display panel 49 bonds an active matrix substrate 41 including a switching element such as a TFT (Thin Film Transistor) and a counter substrate 42 facing the active matrix substrate 41 with a sealant (not shown). Then, liquid crystal (not shown) is injected into the gap between the substrates 41 and 42 (note that the polarizing films 43 and 43 are attached so as to sandwich the active matrix substrate 41 and the counter substrate 42).
　この液晶表示パネル４９は非発光型の表示パネルなので、バックライトユニット３９からの光（バックライト光）を受光することで表示機能を発揮する。そのため、バックライトユニット３９からの光が液晶表示パネル４９の全面を均一に照射できれば、液晶表示パネル４９の表示品位が向上する。 Since the liquid crystal display panel 49 is a non-light-emitting display panel, the display function is exhibited by receiving light from the backlight unit 39 (backlight light). Therefore, if the light from the backlight unit 39 can uniformly irradiate the entire surface of the liquid crystal display panel 49, the display quality of the liquid crystal display panel 49 is improved.
　バックライトユニット３９は、蛍光管（光源、線状光源）１１、ランプホルダ３１、バックライトシャーシ（シャーシ）３２、反射シート３３、拡散シート３４、およびレンズシート３５・３６を含む。 The backlight unit 39 includes a fluorescent tube (light source, linear light source) 11, a lamp holder 31, a backlight chassis (chassis) 32, a reflection sheet 33, a diffusion sheet 34, and lens sheets 35 and 36.
　蛍光管１１は、線状（棒状、円柱状等）になっており、バックライトユニット３９内に複数本で搭載される（ただし、便宜上、図面では一部の本数のみが示されている）。そして、蛍光管１１の電極（不図示）はソケット１２に保持され、そのソケット１２からは電流供給を受けるためのハーネス（配線）１３が延び出る（要は、通電可能な配線であるハーネス１３が蛍光管１１につながる）。 Fluorescent tube 11 has a linear shape (bar shape, columnar shape, etc.) and is mounted in plural in backlight unit 39 (however, for convenience, only a part of the number is shown in the drawing). An electrode (not shown) of the fluorescent tube 11 is held in the socket 12, and a harness (wiring) 13 for receiving a current supply extends from the socket 12 (in short, the harness 13 which is a wiring that can be energized). Connected to the fluorescent tube 11).
　その上、２本のハーネス１３および２個のソケット１２を介して蛍光管１１につながるハーネス接続型コネクタ（第２接続部）２１が、２本の蛍光管１１に対する電気的な接続部となる。詳説すると、ハーネス接続型コネクタ２１は、長手２１Ｌおよび短手２１Ｓを含む形状であり、自身の長手２１Ｌに、２本のハーネス１３を並べて取り付ける｛なお、２本のハーネス１３の並び方向は、ハーネス接続型コネクタ２１における長手２１Ｌの方向（長手方向）に沿う｝。 In addition, a harness connection type connector (second connection portion) 21 connected to the fluorescent tube 11 via the two harnesses 13 and the two sockets 12 serves as an electrical connection portion for the two fluorescent tubes 11. More specifically, the harness connection type connector 21 has a shape including a long side 21L and a short side 21S, and the two harnesses 13 are mounted side by side on the long side 21L. Along the direction (longitudinal direction) of the long side 21L in the connection type connector 21}.
　また、ハーネス接続型コネクタ２１は、反射シート３３に形成されるコネクタ用シート開孔３３ＨＣと、バックライトシャーシ３２に形成されるコネクタ用シャーシ開孔３２ＨＣを通じて、バックライトシャーシ３２の表面３２Ｂｆから裏面３２Ｂｒへ引き回される（後述の図８参照）。 Further, the harness connection type connector 21 is connected to the back surface 32Br from the front surface 32Bf of the backlight chassis 32 through the connector sheet opening 33HC formed in the reflection sheet 33 and the connector chassis opening 32HC formed in the backlight chassis 32. (See FIG. 8 described later).
　なお、蛍光管１１の種類は限定されることはなく、例えば、冷陰極管や熱陰極管であってもよい。また、以降では、蛍光管１１の並ぶ方向を並び方向Ｐ、蛍光管１１の延びる方向を延び方向Ｑ、と称する。 The type of the fluorescent tube 11 is not limited, and may be a cold cathode tube or a hot cathode tube, for example. Hereinafter, the direction in which the fluorescent tubes 11 are arranged is referred to as an arrangement direction P, and the direction in which the fluorescent tubes 11 extend is referred to as an extension direction Q.
　ランプホルダ３１は、２個１組のブロック状部材であり、蛍光管１１を保持する。詳説すると、一方のランプホルダ３１が蛍光管１１の両端における一端を支え、他方のランプホルダ３１が蛍光管１１の両端における他端を支えることで、その蛍光管１１をバックライトユニット３９に搭載させる。 The lamp holder 31 is a set of two block members and holds the fluorescent tube 11. More specifically, one lamp holder 31 supports one end at both ends of the fluorescent tube 11, and the other lamp holder 31 supports the other end at both ends of the fluorescent tube 11, so that the fluorescent tube 11 is mounted on the backlight unit 39. .
　バックライトシャーシ３２は、底部３２Ｂとその底部３２Ｂから立ち上がる壁部３２Ｗとを含む箱状の収容体である。そして、このバックライトシャーシ３２が、蛍光管１１等の種々部材を収容する（なお、蛍光管１１は、バックライトシャーシ３２の底部３２Ｂに敷き詰められ、蛍光管１１に面する底部３２Ｂの一面を表面３２Ｂｆ、その表面３２Ｂｆの裏側を裏面３２Ｂｒと称する）。 The backlight chassis 32 is a box-shaped container including a bottom portion 32B and a wall portion 32W rising from the bottom portion 32B. The backlight chassis 32 accommodates various members such as the fluorescent tube 11 (note that the fluorescent tube 11 is spread on the bottom portion 32B of the backlight chassis 32 and has one surface of the bottom portion 32B facing the fluorescent tube 11 as a surface. 32Bf, the back side of the front surface 32Bf is referred to as the back surface 32Br).
　なお、バックライトシャーシ３２では、底部３２Ｂにおける裏面３２Ｂｒの一部が隆起することで、ボス（不図示）が生じる。そして、このボスに対して、後述のインバータ基板２３を介在させつつ、ネジ（不図示）が締結され、そのインバータ基板２３は、バックライトシャーシ３２に取り付けられる。 In the backlight chassis 32, a boss (not shown) is generated when a part of the back surface 32Br of the bottom 32B is raised. A screw (not shown) is fastened to the boss while an inverter board 23 described later is interposed, and the inverter board 23 is attached to the backlight chassis 32.
　反射シート３３は、バックライトシャーシ３２における底部３２Ｂの表面３２Ｂｆを覆うことで、複数本の蛍光管１１に覆われる反射部材である。そのため、この反射シート３３は、蛍光管１１の光を反射させる。詳説すると、反射シート３３は、蛍光管１１から出射される放射状の光（蛍光管１１を中心とした放射状の光）の一部を反射させ、拡散シート３４に導く。 The reflection sheet 33 is a reflection member that is covered with the plurality of fluorescent tubes 11 by covering the surface 32Bf of the bottom 32B of the backlight chassis 32. Therefore, the reflection sheet 33 reflects the light from the fluorescent tube 11. More specifically, the reflection sheet 33 reflects a part of the radial light emitted from the fluorescent tube 11 (radial light centered on the fluorescent tube 11) and guides it to the diffusion sheet 34.
　なお、バックライトシャーシ３２の構成部材自体が、反射機能を有する樹脂または金属等で構成されていてもよい。このようになっていれば、反射シート３３を除くことができるためである。 Note that the constituent member of the backlight chassis 32 itself may be made of a resin or metal having a reflective function. This is because the reflection sheet 33 can be removed if this is the case.
　拡散シート３４は、並列する蛍光管１１（ひいてはバックライトシャーシ３２の表面３２Ｂｆ）を覆うように位置し、蛍光管１１からの光を拡散させて、液晶表示パネル４９全域に光をいきわたらせている。なお、この拡散シート３４とレンズシート３５・３６とは、光を屈折進行させる光学シートであることから、光学シート群とも称する。 The diffusion sheet 34 is located so as to cover the parallel fluorescent tubes 11 (and thus the surface 32Bf of the backlight chassis 32), diffuses the light from the fluorescent tubes 11, and distributes the light throughout the liquid crystal display panel 49. . The diffusion sheet 34 and the lens sheets 35 and 36 are optical sheets that refract light and are also referred to as optical sheet groups.
　レンズシート３５は、例えばシート面内にプリズム形状を有し、光の指向性を狭くする光学シートであり、拡散シート３４を覆うように位置する。そのため、このレンズシート３５は、拡散シート３４から進行してくる光を集光させ、輝度を向上させる。 The lens sheet 35 is, for example, an optical sheet that has a prism shape in the sheet surface and narrows the directivity of light, and is positioned so as to cover the diffusion sheet 34. Therefore, the lens sheet 35 collects the light traveling from the diffusion sheet 34 and improves the luminance.
　レンズシート３６は、レンズシート３５を覆うように位置し、一方向の偏光成分を透過させるとともに、その透過する偏光成分に対して直交する偏光成分を反射させる光学シートである。そして、このレンズシート３６は、偏光フィルム４３により吸収される偏光成分を反射再利用することにより、液晶表示パネル４９上の輝度を向上させる。 The lens sheet 36 is an optical sheet that is positioned so as to cover the lens sheet 35 and transmits a polarized light component in one direction and reflects a polarized light component orthogonal to the transmitted polarized light component. The lens sheet 36 improves the luminance on the liquid crystal display panel 49 by reflecting and reusing the polarization component absorbed by the polarizing film 43.
　そして、以上のようなバックライトユニット３９では、並列する蛍光管１１からの光は、直接拡散シート３４に到達する、もしくは、バックライトシャーシ３２の底部３２Ｂを覆う反射シート３３にて反射した後に拡散シート３４に到達する。さらに、拡散シート３４に到達した光は、拡散されつつレンズシート３５・３６を通過することで発光輝度を高めたバックライト光になって出射する。そして、このバックライト光は液晶表示パネル４９に到達し、その液晶表示パネル４９は画像を表示させる。 In the backlight unit 39 as described above, the light from the parallel fluorescent tubes 11 reaches the diffusion sheet 34 directly, or is diffused after being reflected by the reflection sheet 33 covering the bottom 32B of the backlight chassis 32. The sheet 34 is reached. Further, the light that has reached the diffusion sheet 34 passes through the lens sheets 35 and 36 while being diffused, and is emitted as backlight light with enhanced emission luminance. The backlight reaches the liquid crystal display panel 49, and the liquid crystal display panel 49 displays an image.
　なお、ハウジングＨＧである表ハウジングＨＧ１と裏ハウジングＨＧ２とは、以上のバックライトユニット３９およびそのバックライトユニット３９を覆う液晶表示パネル４９を挟み込みつつ固定する（なお、固定の仕方は、特に限定されるものではない）。すなわち、表ハウジングＨＧ１は、バックライトユニット３９および液晶表示パネル４９を裏ハウジングＨＧ２とともに挟み込み、これにより、液晶表示装置５９が完成する。 The front housing HG1 and the rear housing HG2, which are the housings HG, are fixed while sandwiching the above-described backlight unit 39 and the liquid crystal display panel 49 covering the backlight unit 39 (how to fix are particularly limited). Not) That is, the front housing HG1 sandwiches the backlight unit 39 and the liquid crystal display panel 49 together with the back housing HG2, thereby completing the liquid crystal display device 59.
　また、裏ハウジングＨＧ２には、拡散シート３４、レンズシート３５・３６が、この順で積み重なって収容されるが、この積み重なる方向を重なり方向Ｒと称する（なお、蛍光管１１における並び方向Ｐおよび延び方向Ｑに対して、重なり方向Ｒが直交しているとよい）。 In addition, the diffusion sheet 34 and the lens sheets 35 and 36 are stacked and accommodated in this order in the rear housing HG2, and this stacking direction is referred to as an overlapping direction R (note that the alignment direction P and the extension in the fluorescent tube 11 extend). The overlapping direction R may be orthogonal to the direction Q).
　ここで、図７に加えて、図１、図８～図１０を用いて、ハーネス１３、ハーネス１３を介して蛍光管１１につながるハーネス接続型コネクタ２１、ハーネス接続型コネクタ２１の接続先である基板搭載型コネクタ２２に関して詳説していく（なお、図１、および後述の図２～図６は簡略な平面図であり、ソケット１２等を省略している）。 Here, in addition to FIG. 7, FIG. 1 and FIGS. 8 to 10 are used to show the harness 13, the harness connection connector 21 connected to the fluorescent tube 11 through the harness 13, and the connection destination of the harness connection connector 21. The board-mounted connector 22 will be described in detail (note that FIG. 1 and FIGS. 2 to 6 described later are simplified plan views, and the socket 12 and the like are omitted).
　図８に示すように、バックライトシャーシ３２の裏面３２Ｂｒには、インバータユニットＵＴが位置する。 As shown in FIG. 8, the inverter unit UT is located on the back surface 32Br of the backlight chassis 32.
　インバータユニットＵＴは、インバータ回路のような種々回路と、基板搭載型コネクタ（第１接続部）２２と、不図示の通電可能な基板配線を内蔵させた実装基板であるインバータ基板２３と、を含む（なお、インバータ回路および基板搭載型コネクタ２２を実装するインバータ基板２３の基板面は表基板面２３ｆ、その表基板面２３ｆの裏側の基板面は裏基板面２３ｒと称される）。 The inverter unit UT includes various circuits such as an inverter circuit, a board-mounted connector (first connection portion) 22, and an inverter board 23 that is a mounting board that incorporates a board wiring that can be energized (not shown). (Note that the board surface of the inverter board 23 on which the inverter circuit and the board-mounted connector 22 are mounted is referred to as a front board face 23f, and the board face behind the front board face 23f is referred to as a back board face 23r).
　インバータ回路は、昇圧回路（インバータトランス）２４のような種々の回路で構成され、蛍光管１１を駆動させるために用いられる回路である（なお、図８では、便宜上、インバータ回路におけるインバータトランス２４が主体的に図示される）。 The inverter circuit is composed of various circuits such as a booster circuit (inverter transformer) 24, and is a circuit used for driving the fluorescent tube 11 (in FIG. 8, for convenience, the inverter transformer 24 in the inverter circuit is shown in FIG. It is mainly illustrated).
　基板搭載型コネクタ２２は、インバータトランス２４を実装されたインバータ基板２３の表基板面２３ｆと同面に取り付けられ、不図示の基板配線（インバータ基板２３に配置される配線）を介してインバータ回路につながる。すなわち、基板搭載型コネクタ２２は、インバータ回路に対する電気的な接続部である。 The board-mounted connector 22 is attached to the same surface as the front board surface 23f of the inverter board 23 on which the inverter transformer 24 is mounted, and is connected to the inverter circuit through board wiring (not shown) (wiring arranged on the inverter board 23). Connected. That is, the board-mounted connector 22 is an electrical connection portion for the inverter circuit.
　そして、基板搭載型コネクタ２２は、ソケット１２から延び出るハーネス１３を２本つなげるハーネス接続型コネクタ２１に嵌ることで、蛍光管１１に交流電流を供給する（なお、基板搭載型コネクタ２２の形状は、ハーネス接続型コネクタ２１の形状に相似する）。つまり、インバータ回路と蛍光管１１との電気的な接続は、インバータ基板２３に取り付けられる基板搭載型コネクタ２２と、ソケット１２から延び出るハーネス１３を２本つなげるハーネス接続型コネクタ２１との嵌り合いで実現する（図８の白色矢印参照）。 Then, the board-mounted connector 22 supplies an alternating current to the fluorescent tube 11 by fitting into a harness-connecting connector 21 that connects two harnesses 13 extending from the socket 12 (the shape of the board-mounted connector 22 is It is similar to the shape of the harness connection type connector 21). That is, the electrical connection between the inverter circuit and the fluorescent tube 11 is made by fitting the board-mounted connector 22 attached to the inverter board 23 and the harness-connecting connector 21 that connects two harnesses 13 extending from the socket 12. Realized (see white arrow in FIG. 8).
　詳説すると、バックライトシャーシ３２の裏面３２Ｂｒ側に位置するハーネス接続型コネクタ２１が、部分拡大図である図９および図９の分解斜視図である図１０に示すように、インバータ基板２３の基板搭載型コネクタ２２に向かって移動して嵌る（図１０の白色矢印参照）。すると、インバータ回路からの交流電流は、基板配線（不図示）、基板搭載型コネクタ２２、ハーネス接続型コネクタ２１、ハーネス１３、およびソケット１２を介して、蛍光管１１に流れる。その結果、蛍光管１１は、交流電流によって駆動させられる。 More specifically, as shown in FIG. 9 which is a partially enlarged view and FIG. 10 which is an exploded perspective view of FIG. 9, the harness connection type connector 21 positioned on the back surface 32Br side of the backlight chassis 32 is mounted on the inverter board 23. It moves toward the mold connector 22 (see the white arrow in FIG. 10). Then, an alternating current from the inverter circuit flows to the fluorescent tube 11 via the substrate wiring (not shown), the substrate mounting connector 22, the harness connection connector 21, the harness 13, and the socket 12. As a result, the fluorescent tube 11 is driven by an alternating current.
　以上のようにして、ハーネス接続型コネクタ２１と基板搭載型コネクタ２２とは嵌り合う。そして、両コネクタ２１・２２と蛍光管１１との位置関係を図示すると、図１のようになる（なお、図１は、バックライトシャーシ３２を省略し、インバータ基板２３と蛍光管１１とを同一面に並べて図示する平面図である）。 As described above, the harness connection type connector 21 and the board mounting type connector 22 are fitted. The positional relationship between the connectors 21 and 22 and the fluorescent tube 11 is shown in FIG. 1 (in FIG. 1, the backlight chassis 32 is omitted, and the inverter board 23 and the fluorescent tube 11 are the same. It is a plan view shown side by side on the surface.
　この図１に示すように、ハーネス接続型コネクタ２１に含まれる１つの長手２１Ｌにつながる２本のハーネス１３（１３Ｌ・１３Ｓ）では、１本のハーネス１３Ｌが他の１本のハーネス１３Ｓと異なる長さを有する。そのため、長い方のハーネス１３Ｌのつながるハーネス接続型コネクタ２１の一端２１Ｌ１は、短い方のハーネス１３Ｓのつながるハーネス接続型コネクタ２１の他端２１Ｌ２に比べて、ハーネス１３の長さに基づく制約を受けづらい。 As shown in FIG. 1, in the two harnesses 13 (13L and 13S) connected to one longitudinal length 21L included in the harness connection type connector 21, one harness 13L has a different length from the other one harness 13S. Have Therefore, the one end 21L1 of the harness connection type connector 21 to which the longer harness 13L is connected is less subject to restrictions based on the length of the harness 13 than the other end 21L2 of the harness connection type connector 21 to which the shorter harness 13S is connected. .
　詳説すると、例えば、ハーネス１３Ｓにつながるハーネス接続型コネクタ２１の他端２１Ｌ２が、ハーネス１３Ｓの長さに起因する制約を受けて、一列に並ぶ蛍光管１１に対し、ある位置で不動になるとする。そして、ハーネス１３Ｌがハーネス１３Ｓと同じ長さであれば、ハーネス１３Ｌにつながるハーネス接続型コネクタ２１の一端２１Ｌ１も、ハーネス接続型コネクタ２１の他端２１Ｌ２と同様に、ハーネス１３Ｌの長さに起因する制約を受ける。そのため、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｑに対して、直交させるようになる（蛍光管１１の並び方向Ｐとハーネス接続型コネクタ２１の長手２１Ｌとが平行関係になる）。 More specifically, for example, it is assumed that the other end 21L2 of the harness connection type connector 21 connected to the harness 13S is fixed at a certain position with respect to the fluorescent tubes 11 arranged in a row due to a restriction caused by the length of the harness 13S. If the harness 13L has the same length as the harness 13S, the one end 21L1 of the harness connection type connector 21 connected to the harness 13L is also caused by the length of the harness 13L, similarly to the other end 21L2 of the harness connection type connector 21. Limited. For this reason, the harness connection type connector 21 makes its own length 21L orthogonal to the extending direction Q of the fluorescent tube 11 (the arrangement direction P of the fluorescent tubes 11 and the length 21L of the harness connection type connector 21 are parallel). Relationship).
　しかしながら、ハーネス１３Ｌがハーネス１３Ｓよりも長いと、ハーネス１３Ｌにつながるハーネス接続型コネクタ２１の一端２１Ｌ１は、ハーネス１３Ｓよりも長い分だけ、移動距離をハーネス接続型コネクタ２１の他端２１Ｌ２に比べて伸ばせる。 However, if the harness 13L is longer than the harness 13S, the one end 21L1 of the harness connection type connector 21 connected to the harness 13L can extend the movement distance compared to the other end 21L2 of the harness connection type connector 21 by an amount longer than the harness 13S. .
　そのため、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｑに対して近づける上、自身の短手２１Ｓを蛍光管１１の並び方向Ｐに近づける。（例えば、図１に示すように、蛍光管１１の延び方向Ｑとハーネス接続型コネクタ２１の長手２１Ｌとが平行関係になり、蛍光管１１の並び方向Ｐとハーネス接続型コネクタ２１の短手２１Ｓとが平行関係になる）。 Therefore, the harness connection type connector 21 brings its long side 21L closer to the extending direction Q of the fluorescent tube 11 and brings its short side 21S closer to the arrangement direction P of the fluorescent tube 11. (For example, as shown in FIG. 1, the extending direction Q of the fluorescent tube 11 and the long side 21L of the harness connection type connector 21 are in a parallel relationship, and the arrangement direction P of the fluorescent tube 11 and the short side 21S of the harness connection type connector 21 Are in parallel).
　その上、基板搭載型コネクタ２２は、ハーネス接続型コネクタ２１と相似な形状で、ハーネス接続型コネクタ２１の長手２１Ｌに対して自身の長手２２Ｌ、ハーネス接続型コネクタ２１の短手２１Ｓに対して自身の短手２２Ｓを一致させつつ、ハーネス接続型コネクタ２１に接続する。 In addition, the board-mounted connector 22 has a shape similar to that of the harness-connecting connector 21, and is longer than the longer length 21 </ b> L of the harness-connected connector 21 and shorter than 21 </ b> S of the harness-connected connector 21. Are connected to the harness connection type connector 21 while matching the short sides 22S of the two.
　このようになっていると、インバータ基板２３において、一方向（例えば、蛍光管１１の並び方向Ｐ）に沿う限られたスペースに、基板搭載型コネクタ２２が、自身の短手２２Ｓを沿わせながら並ぶことになる（要は、基板搭載型コネクタ２２が、自身の長手２２Ｌ同士を対向させつつ、一方向に沿って並べるようになる）。 In this way, in the inverter board 23, the board-mounted connector 22 keeps its short 22S along a limited space along one direction (for example, the arrangement direction P of the fluorescent tubes 11). (In short, the board-mounted connectors 22 are arranged along one direction with their long sides 22L facing each other).
　そのため、インバータ基板２３における一方向の限られたスペースに、極力多くの基板搭載型コネクタ２２が実装可能になりつつも、比較的小さなインバータ基板２３でもよくなる（つまり、インバータ基板２３の一方向の長さを短縮できる）。したがって、バックライトユニット３９の小型化が実現される。 Therefore, while it is possible to mount as many board-mounted connectors 22 as possible in a limited space in one direction on the inverter board 23, a relatively small inverter board 23 is also possible (that is, the length in one direction of the inverter board 23). Can be shortened). Therefore, downsizing of the backlight unit 39 is realized.
　その上、バックライトユニット３９に極力多くの蛍光管１１が搭載可能になり、その結果、蛍光管１１の数が比較的少ないことに起因して、蛍光管１１の形状を反映するランプムラがバックライトユニット３９からの光に含まれなくなる。 In addition, as many fluorescent tubes 11 as possible can be mounted on the backlight unit 39, and as a result, the number of fluorescent tubes 11 is relatively small, so that the lamp unevenness reflecting the shape of the fluorescent tubes 11 is caused by the backlight. It is not included in the light from the unit 39.
　また、２本の蛍光管１１と、ハーネス１３（１３Ｌ・１３Ｓ）と、ハーネス接続型コネクタ２１とで構成するセットが複数存在していても、いずれのセットも同じ仕様になる。そのため、バックライトユニット３９の製造過程において、セットの識別が不要になり、製造効率が向上する。 Moreover, even if there are a plurality of sets composed of the two fluorescent tubes 11, the harnesses 13 (13L and 13S), and the harness connection type connector 21, all the sets have the same specifications. Therefore, in the manufacturing process of the backlight unit 39, it is not necessary to identify the set, and the manufacturing efficiency is improved.
　［その他の実施の形態］
　なお、本発明は上記の実施の形態に限定されず、本発明の趣旨を逸脱しない範囲で、種々の変更が可能である。 [Other embodiments]
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
　以上では、図１に示すように、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｑに対して平行にさせつつ、自身の短手２１Ｓを蛍光管１１の並び方向Ｐに対して平行にさせていた。しかし、これに限定されるものではない。 In the above, as shown in FIG. 1, the harness connection type connector 21 makes its long side 21 </ b> L parallel to the extending direction Q of the fluorescent tube 11, while its short side 21 </ b> S is aligned in the direction P of the fluorescent tube 11. It was made parallel to. However, it is not limited to this.
　例えば、図２に示すように、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｑに対して傾斜させつつ、自身の短手２１Ｓを蛍光管１１の並び方向Ｐに対して傾斜させていてもよい（もちろん、基板搭載型コネクタ２２は、ハーネス接続型コネクタ２１の長手２１Ｌに対して自身の長手２２Ｌ、ハーネス接続型コネクタ２１の短手２１Ｓに対して自身の短手２２Ｓを一致させつつ、ハーネス接続型コネクタ２１に接続する）。 For example, as shown in FIG. 2, the harness connection type connector 21 tilts its own long side 21 </ b> L with respect to the extending direction Q of the fluorescent tube 11, and its own short side 21 </ b> S with respect to the alignment direction P of the fluorescent tube 11. (Of course, the board-mounted connector 22 has its own length 22L with respect to the length 21L of the harness connection type connector 21 and its own short side 22S with respect to the short side 21S of the harness connection type connector 21). Are connected to the harness connection type connector 21).
　このようなバックライトユニット３９であっても、インバータ基板２３において、蛍光管１１の並び方向Ｐの限られたスペースに、極力多くの基板搭載型コネクタ２２が実装可能になる。例えば、このようなバックライトユニット３９は、蛍光管１１の並び方向Ｐと基板搭載型コネクタ２２の長手２２Ｌとが平行関係になるバックライトユニット３９に比べて、極力多くの基板搭載型コネクタ２２を、インバータ基板２３における蛍光管１１の並び方向Ｐの限られたスペースに実装できる。 Even in such a backlight unit 39, as many board-mounted connectors 22 as possible can be mounted in a limited space in the arrangement direction P of the fluorescent tubes 11 on the inverter board 23. For example, such a backlight unit 39 has as many board-mounted connectors 22 as possible as compared with the backlight unit 39 in which the alignment direction P of the fluorescent tubes 11 and the longitudinal length 22L of the board-mounted connector 22 are parallel to each other. The inverter board 23 can be mounted in a limited space in the arrangement direction P of the fluorescent tubes 11.
　そのため、このようなバックライトユニット３９では、実施の形態１のバックライトユニット３９同様、蛍光管１１の数が比較的少ないことに起因して、蛍光管１１の形状を反映するランプムラがバックライトユニット３９からの光に含まれなくなる。また、このようなバックライトユニット３９では、インバータ基板２３の一方向の長さを短縮できることにもなり、そのバックライトユニット３９の小型化も実現される。 Therefore, in such a backlight unit 39, as in the backlight unit 39 of the first embodiment, the lamp unevenness reflecting the shape of the fluorescent tube 11 is caused by the relatively small number of the fluorescent tubes 11. It is not included in the light from 39. Moreover, in such a backlight unit 39, the length of the inverter board 23 in one direction can be shortened, and the backlight unit 39 can be downsized.
　さらに、実施の形態１同様に、２本の蛍光管１１と、ハーネス１３（１３Ｌ・１３Ｓ）と、ハーネス接続型コネクタ２１とで構成するセットが複数存在していても、いずれのセットも同じ仕様になるので、バックライトユニット３９の製造過程において、セットの識別が不要になり、製造効率が向上する（要は、このバックライトユニット３９にも、実施の形態１におけるバックライトユニット３９に関する作用効果が奏する）。 Further, as in the first embodiment, even if there are a plurality of sets composed of the two fluorescent tubes 11, the harnesses 13 (13L and 13S), and the harness connection type connector 21, all the sets have the same specifications. Therefore, in the manufacturing process of the backlight unit 39, the identification of the set becomes unnecessary, and the manufacturing efficiency is improved (in short, this backlight unit 39 also has the function and effect related to the backlight unit 39 in the first embodiment). Plays).
　ところで、以上では、ハーネス接続型コネクタ２１における１つの長手２１Ｌにつながるハーネス１３は、２本であり、蛍光管１１も２本であった。しかし、これに限定されるものではない。例えば、図３の部分拡大平面図に示すように、ハーネス接続型コネクタ２１における１つの長手２１Ｌつながるハーネス１３（１３Ｌ、１３Ｍ、１３Ｓ）は、３本以上であってもかまわない。 By the way, in the above, there are two harnesses 13 connected to one longitudinal portion 21L in the harness connection type connector 21, and there are also two fluorescent tubes 11. However, it is not limited to this. For example, as shown in the partially enlarged plan view of FIG. 3, the harness 13 (13L, 13M, 13S) connected to one longitudinal portion 21L in the harness connection type connector 21 may be three or more.
　また、図３に示されるハーネス１３Ｌ、１３Ｍ、１３Ｓは、各々長さが異なっているが（１３Ｌ＞１３Ｍ＞１３Ｓ）、これに限定されるものではない。例えば、図４に示すように、ハーネス接続型コネクタ２１における１つの長手２１Ｌつながるハーネス１３のうち、少なくとも１本の配線１３Ｓが他の配線１３Ｌ・１３Ｌと異なる長さを有していてもよい。 Further, the lengths of the harnesses 13L, 13M, and 13S shown in FIG. 3 are different (13L> 13M> 13S), but are not limited thereto. For example, as shown in FIG. 4, at least one wiring 13 </ b> S may have a different length from the other wirings 13 </ b> L and 13 </ b> L in the harness 13 connected to one longitudinal portion 21 </ b> L in the harness connection type connector 21.
　また、図５に示すように、ハーネス接続型コネクタ２１にて、対向する２つの長手２１Ｌ・２１Ｌの一方と他方とに、同じ長さのハーネス１３・１３がつながることで、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｑに対して近づけ、さらに、自身の短手２１Ｓを蛍光管１１の並び方向Ｐに近づけてもよい。 Further, as shown in FIG. 5, in the harness connection type connector 21, the harnesses 13 and 13 having the same length are connected to one and the other of the two opposing longitudinal lengths 21 </ b> L and 21 </ b> L, thereby the harness connection type connector 21. However, the long side 21 </ b> L of the self may be brought close to the extending direction Q of the fluorescent tube 11, and the short side 21 </ b> S of the self may be made close to the arranging direction P of the fluorescent tube 11.
　また、図６に示すように、ハーネス接続型コネクタ２１にて、対向する２つの長手２１Ｌ・２１Ｌの一方と他方とに同じ長さのハーネス１３Ｓ・１３Ｓがつながり、一方の長手２１Ｌに、それらハーネス１３Ｓよりも長いハーネス１３Ｌがつなげられていてもよい。 In addition, as shown in FIG. 6, in the harness connection type connector 21, the harnesses 13 </ b> S and 13 </ b> S having the same length are connected to one and the other of the two opposing long lengths 21 </ b> L and 21 </ b> L. A harness 13L longer than 13S may be connected.
　このようになっていても、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｑに対して近づけられ、さらに、自身の短手２１Ｓを蛍光管１１の並び方向Ｐに近づけられる。要は、ハーネス接続型コネクタ２１が、自身の長手２１Ｌを蛍光管１１の延び方向Ｐに対して近づけられ、さらに、自身の短手２１Ｓを蛍光管１１の並び方向Ｐに近づけられればよい。 Even in this case, the harness connection type connector 21 can bring its long side 21L closer to the extending direction Q of the fluorescent tube 11 and further bring its short side 21S closer to the arranging direction P of the fluorescent tube 11. It is done. In short, it is only necessary that the harness-connected connector 21 has its long side 21L brought closer to the extending direction P of the fluorescent tube 11 and further its own short side 21S brought closer to the arranging direction P of the fluorescent tube 11.
　なぜなら、このようになっていれば、インバータ基板２３において、蛍光管１１の並び方向Ｐに沿う限られたスペースに、基板搭載型コネクタ２２が、自身の短手２２Ｓを沿わせながら並び、極力多くの蛍光管１１がバックライトユニット３９に搭載可能になるためである。 This is because, in this case, on the inverter board 23, the board-mounted connectors 22 are arranged in a limited space along the arrangement direction P of the fluorescent tubes 11 along the short side 22S of their own, and as much as possible. This is because the fluorescent tube 11 can be mounted on the backlight unit 39.
　　　１１　　　　　蛍光管（線状光源）
　　　１２　　　　　ソケット
　　　１３　　　　　ハーネス（配線）
　　　２１　　　　　ハーネス接続型コネクタ（第２接続部）
　　　２１Ｌ　　　　ハーネス接続型コネクタにおける長手
　　　２１Ｓ　　　　ハーネス接続型コネクタにおける短手
　　　２２　　　　　基板搭載型コネクタ（第１接続部）
　　　２２Ｌ　　　　基板搭載型コネクタにおける長手
　　　２２Ｓ　　　　基板搭載型コネクタにおける短手
　　　２３　　　　　インバータ基板（実装基板）
　　　Ｐ　　　　　　蛍光管の並び方向
　　　Ｑ　　　　　　蛍光管の延び方向
　　　３９　　　　　バックライトユニット（照明装置）
　　　４９　　　　　液晶表示パネル
　　　５９　　　　　液晶表示装置 11 Fluorescent tube (Linear light source)
12 Socket 13 Harness (wiring)
21 Harness connection type connector (second connection part)
21L Long in harness connection type connector 21S Short in harness connection type connector 22 Board mounted connector (first connection part)
22L Long in board-mounted connector 22S Short in board-mounted connector 23 Inverter board (mounting board)
P Fluorescent tube alignment direction Q Fluorescent tube extending direction 39 Backlight unit (illumination device)
49 Liquid crystal display panel 59 Liquid crystal display device

Claims (3)

  1. 　通電可能な基板配線を含む実装基板と、
    　上記基板配線の電気的な接続部で、上記実装基板に実装される複数の第１接続部と、
    　上記第１接続部毎に接続されており、長手および短手を含む形状である第２接続部と、
    　上記第２接続部から延び出る複数の通電可能な配線と、
    　上記配線毎につながる線状光源と、
    を含む照明装置にあって、
    　上記第２接続部における１つの長手につながる複数の上記配線では、少なくとも１本の配線が他の配線と異なる長さを有することで、上記第２接続部が、自身の長手を上記線状光源の延び方向に近づけつつ、自身の短手を上記線状光源の並び方向に近づけ、
    　上記第１接続部は、上記第２接続部と相似な形状で、上記第２接続部の長手に対して自身の長手、上記第２接続部の短手に対して自身の短手を一致させつつ、上記第２接続部に接続する照明装置。     A mounting board including board wiring that can be energized;
    A plurality of first connection parts mounted on the mounting board at an electrical connection part of the board wiring;
    A second connection part that is connected to each of the first connection parts and has a shape including a long side and a short side;
    A plurality of energizable wires extending from the second connection portion;
    A linear light source connected to each wiring,
    Including a lighting device,
    In the plurality of wirings connected to one longitudinal length in the second connecting portion, at least one wiring has a different length from the other wiring, so that the second connecting portion has its own longitudinal length as the linear light source. While moving closer to the direction of the extension of the linear light source closer to the direction of the linear light source,
    The first connection part has a shape similar to the second connection part, and the long side of the second connection part is aligned with the long side of the first connection part, and the short side of the second connection part is aligned with the short side of the second connection part. Meanwhile, a lighting device connected to the second connection portion.
  2. 　上記第２接続部が、自身の長手を上記線状光源の延び方向に対して平行または傾斜にさせつつ、自身の短手を上記線状光源の並び方向に対して平行または傾斜にさせる請求項１に記載の照明装置。 The second connection portion makes its short side parallel or inclined with respect to the direction in which the linear light sources are arranged, while making its longitudinal length parallel or inclined with respect to the extending direction of the linear light sources. The lighting device according to 1.
  3. 　請求項１または２に記載の照明装置と、
    　上記照明装置からの光を受ける液晶表示パネルと、
    を含む液晶表示装置。     The lighting device according to claim 1 or 2,
    A liquid crystal display panel that receives light from the illumination device;
    Including a liquid crystal display device.
PCT/JP2009/061373 2008-10-10 2009-06-23 Illuminating device and liquid crystal display device WO2010041496A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825266A (en) * 2010-04-30 2010-09-08 福建捷联电子有限公司 LED light tube power panel applied to liquid crystal display

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JPH0515214U (en) * 1991-04-22 1993-02-26 松下電工株式会社 lighting equipment
JP2008098153A (en) * 2006-09-13 2008-04-24 Sharp Corp Backlight device and liquid crystal display device
JP3143909U (en) * 2007-07-12 2008-08-07 鴻富錦精密工業（深▲セン▼）有限公司 Backlight
JP2008204955A (en) * 2006-07-10 2008-09-04 Sharp Corp Backlight device, and liquid crystal display
JP2008226655A (en) * 2007-03-13 2008-09-25 Sharp Corp Lighting system
JP2008226651A (en) * 2007-03-13 2008-09-25 Sharp Corp Lamp holding member, and backlight device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0515214U (en) * 1991-04-22 1993-02-26 松下電工株式会社 lighting equipment
JP2008204955A (en) * 2006-07-10 2008-09-04 Sharp Corp Backlight device, and liquid crystal display
JP2008098153A (en) * 2006-09-13 2008-04-24 Sharp Corp Backlight device and liquid crystal display device
JP2008226655A (en) * 2007-03-13 2008-09-25 Sharp Corp Lighting system
JP2008226651A (en) * 2007-03-13 2008-09-25 Sharp Corp Lamp holding member, and backlight device
JP3143909U (en) * 2007-07-12 2008-08-07 鴻富錦精密工業（深▲セン▼）有限公司 Backlight

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Publication number Priority date Publication date Assignee Title
CN101825266A (en) * 2010-04-30 2010-09-08 福建捷联电子有限公司 LED light tube power panel applied to liquid crystal display

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