WO2016047275A1 - Display device and television receiver - Google Patents

Display device and television receiver Download PDF

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Publication number
WO2016047275A1
WO2016047275A1 PCT/JP2015/071974 JP2015071974W WO2016047275A1 WO 2016047275 A1 WO2016047275 A1 WO 2016047275A1 JP 2015071974 W JP2015071974 W JP 2015071974W WO 2016047275 A1 WO2016047275 A1 WO 2016047275A1
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WO
WIPO (PCT)
Prior art keywords
back cabinet
light source
liquid crystal
display device
crystal panel
Prior art date
Application number
PCT/JP2015/071974
Other languages
French (fr)
Japanese (ja)
Inventor
豊田　友博
健也 本間
善貴 小方
宮田　英樹
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to CN201590000941.3U priority Critical patent/CN206946144U/en
Publication of WO2016047275A1 publication Critical patent/WO2016047275A1/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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the present invention relates to a display device and a television receiver including the display device.
  • Patent Documents 1 to 3 Recently, display devices with curved liquid crystal panels have been developed (Patent Documents 1 to 3).
  • the backlight substrate is curved in accordance with the liquid crystal panel.
  • Japanese Patent Publication “JP 2007-171681 A” (published July 5, 2007) Japanese Patent Publication “Japanese Patent Laid-Open No. 2008-304535 (December 18, 2008)” Japanese Patent Publication “Japanese Unexamined Patent Publication No. 2009-93000 (published on April 30, 2009)”
  • the present inventors are examining a structure in which a light source substrate for a backlight in which a plurality of light sources are arranged is directly attached to a back cabinet.
  • the same problem occurs when the light source substrate is curved in order to directly attach the light source substrate for backlight to the back cabinet.
  • the present invention has been made in view of the above problems, and in a display device in which at least one of a display panel and a back cabinet is curved, the backlight light source substrate is not curved, and the back cabinet is used.
  • a main object is to provide a technique for mounting and arranging the display panel along the back surface of the display panel.
  • a display device includes a display panel, a back cabinet, and a plurality of light source substrates attached to the surface of the back cabinet on the display panel side. And at least one of the display panel and the back cabinet is curved so as to draw an arc, and the arc is orthogonal to the lateral direction of the liquid crystal panel.
  • the plurality of light source substrates are arranged along the surface of the display panel on the back cabinet side in a state in which the longitudinal direction of each light source substrate is oriented in the short direction of the display panel. In this manner, the display panels are arranged side by side in the longitudinal direction.
  • the light source substrate since the longitudinal direction of the light source substrate faces the direction orthogonal to the bending direction, the light source substrate can be attached to the back cabinet without being bent, and the display panel It can arrange
  • FIG. 1 shows typically schematic structure of the display apparatus which concerns on one Embodiment of this invention
  • (a) is a top view which shows the front of a display apparatus
  • (b) is sectional drawing of a display apparatus
  • 2 shows a cross section perpendicular to the short direction of the liquid crystal panel
  • (c) is a cross sectional view of the display device, showing a cross section perpendicular to the longitudinal direction of the liquid crystal panel
  • (d) is a display device.
  • the top view which shows the back surface of is shown. It is a perspective view which shows the structure of the light source board
  • a display device 1 according to an embodiment (Embodiment 1) of the present invention will be described with reference to FIGS.
  • the display device 1 according to the present embodiment is not limited to this, but may be, for example, a television receiver.
  • the technical scope of this invention is not limited to description of the following embodiment and drawing.
  • the side where the display screen is present is referred to as the front, and the opposite side is referred to as the back.
  • the horizontal direction when the display device 1 is viewed from the front is simply referred to as the horizontal direction
  • the vertical direction when the display device 1 is viewed from the front is simply referred to as the vertical direction.
  • the longitudinal direction of the liquid crystal panel 15 refers to the longitudinal direction of the display screen of the liquid crystal panel 15, and in the case where the display screen is rectangular, it refers to the direction parallel to the long side of the display screen.
  • the short direction of the liquid crystal panel 15 refers to the short direction of the display screen of the liquid crystal panel 15, and in the case where the display screen is rectangular, it refers to the direction parallel to the short side of the display screen.
  • the longitudinal direction of the liquid crystal panel (display panel) 15 is parallel to the horizontal direction, and the short side direction of the liquid crystal panel 15 is parallel to the vertical direction, but the present invention is limited to this.
  • the longitudinal direction of the liquid crystal panel 15 may be non-parallel to the horizontal direction, and the short side direction of the liquid crystal panel 15 may be non-parallel to the vertical direction.
  • the display device 1 is a liquid crystal display device.
  • FIG. 1A and 1B are diagrams schematically showing a schematic configuration of a display device 1
  • FIG. 1A is a plan view showing a front surface of the display device
  • FIG. 2C is a cross-sectional view of the display device, and shows a cross-section perpendicular to the longitudinal direction of the liquid crystal panel, and FIG. The top view shown is shown.
  • the display device 1 includes a front cabinet 10, a liquid crystal panel (display panel) 15, an LED substrate (light source substrate) 22, a heat spreader (heat radiating plate) 23, and a back cabinet 24.
  • the front cabinet 10 is a casing that mainly surrounds the liquid crystal panel 15.
  • the back cabinet 24 is a housing that mainly covers the back surface of the display device 1.
  • the front cabinet 10 and the back cabinet 24 are mainly composed of an injection molded product such as plastic.
  • liquid crystal panel 15 for example, a well-known liquid crystal display panel (LCD) can be used, and in particular, a transmissive or transflective liquid crystal display panel can be suitably used.
  • the liquid crystal panel 15 is curved so as to draw an arc, and the arc is orthogonal to the short direction of the liquid crystal panel 15. In other words, in the present embodiment, the liquid crystal panel 15 is curved so as to draw an arc in the horizontal direction.
  • a curved liquid crystal panel is a known technique as shown in Patent Documents 1 to 3, for example.
  • an arbitrary optical sheet such as a diffusion sheet, a prism sheet, or a microlens sheet for obtaining desired optical performance may be laminated on the surface of the liquid crystal panel 15 on the back cabinet 24 side.
  • the number and combination of optical sheets are not particularly limited.
  • the liquid crystal panel 15 and the optical sheet are supported by, for example, a not-shown bezel, a P chassis (intermediate chassis), a poron (buffer material), a clip (a support column for maintaining a distance between the optical sheet and the LED substrate 22), and the like. obtain.
  • FIG. 2 is a perspective view showing a schematic structure of the LED substrate 22 and the heat spreader 23 coupled to the LED substrate 22 in the present embodiment.
  • the LED substrate 22 is attached to the surface of the back cabinet 24 on the liquid crystal panel 15 side via a heat spreader 23 without using a backlight chassis or the like.
  • heat dissipation of the light source substrate and attachment of the light source substrate to the back cabinet can be realized with a small number of parts and cost.
  • the assembly process can be simplified. In particular, if the shapes of the heat spreaders 23 coupled to the LED substrates 22 are the same, the cost can be further reduced.
  • the LED substrate 22 is flat and has a strip shape. Further, a plurality of LED elements (light sources) 220 are arranged (arranged side by side) along the longitudinal direction Y of the LED substrate 22 on the surface of the LED substrate 22 opposite to the back cabinet 24 side. . Thus, the LED substrate 22 is provided with a plurality of LED elements 220, and by using the LED substrate 22, the plurality of LED elements 220 can be easily arranged in the display device 1.
  • a connector for electrically connecting to the main circuit of the display device may be provided at one end in the longitudinal direction Y of the LED substrate 22.
  • a circuit for electrically connecting the connector and each LED element 220 may be provided on the LED board 22 (not shown).
  • the case where an LED element is used as the light source has been described as an example.
  • the present invention is not limited to this, and for example, a light source other than the LED element such as a fluorescent tube is used as the light source. You may employ
  • each LED board 22 is not particularly limited.
  • the heat spreader 23 includes a bottom surface portion 23a coupled to the back surface (the surface on the back cabinet 24 side) of the LED substrate 22, and a pair of side surface portions 23b and 23c that are bent from both ends of the bottom surface portion 23a in the lateral direction X toward the back cabinet 24 It has.
  • Such a heat spreader 23 can be easily configured, for example, by bending a single metal plate.
  • the angle between the bottom surface portion 23a and the side surface portion 23b or the side surface portion 23c is preferably about 90 degrees.
  • the heat spreader 23 including the bottom surface portion 23a and the side surface portions 23b and 23c, the heat dissipation efficiency of the LED substrate 22 can be improved and the warpage of the LED substrate 22 can be suppressed with a simple configuration. That is, by providing a pair of side surface portions 23b and 23c that bend toward the back cabinet 24 from both ends in the short side direction X of the bottom surface portion 23a, (i) the heat spreader 23 has a large surface area to dissipate heat into the air.
  • the heat dissipation efficiency of the LED substrate 22 coupled to the heat spreader 23 can be improved, and (ii) the rigidity of the heat spreader 23 can be increased, so that the LED coupled to the heat spreader 23 can be improved. Warpage of the substrate 22 can be suppressed. Thereby, even if it is a case where the LED board 22 is attached to the back cabinet 24, sufficient heat dissipation efficiency of the LED board 22 is ensured, and the curvature of the LED board 22 can be suppressed. Moreover, it also has an effect of reinforcing the strength of the back cabinet 24. Further, the heat spreader 23 can be configured to be lightweight.
  • the heat spreader 23 includes a pair of side surface portions 23b and 23c that are bent from both ends of the bottom surface portion 23a in the short direction X toward the back cabinet 24 side. What is necessary is just to provide the side part bent to the back cabinet side from the at least one edge part of the transversal direction X of a part.
  • the lengths of the side surfaces 23b and 23c in the short direction Z are the same, and the cross section perpendicular to the longitudinal direction Y is substantially U-shaped (so-called Character shape)).
  • a hook structure is formed at the tips of the side surfaces 23b and 23c (the end opposite to the bottom surface 23a in the lateral direction Z) by a claw 244 provided in the back cabinet 24 described later. Has been.
  • the heat spreader 23 is preferably formed of a material such as a metal that has a higher heat dissipation than the LED substrate 22. Thereby, the thermal radiation efficiency of LED board 22 can be improved more.
  • the heat spreader 23 can be formed by SPTE.
  • bottom surface portion 23a, the side surface portion 23b, and the side surface portion 23c do not have to be flat surfaces, and some or all of them may be curved surfaces.
  • the heat spreader 23 and the LED substrate 22 only need to be coupled in a thermally conductive manner.
  • the heat spreader 23 and the LED substrate 22 may be coupled by a heat conductive double-sided tape.
  • the heat spreader 23 when configured by a conductor such as metal, the ground potential portion of the LED substrate 22 and the heat spreader 23 may be electrically connected. Accordingly, the heat spreader 23 made of a conductor can be used as a path for ground connection of the LED substrate 22, and an adverse effect that may occur when the heat spreader 23 made of a conductor is electrically floating can be avoided. it can.
  • the LED substrate 22 and the heat spreader 23 may be provided with notches or openings for avoiding interference of other members.
  • the LED substrate 22 and the heat spreader 23 may be provided with a structure for fixing to the back cabinet 24 (for example, a nail for fitting, a notch, etc.).
  • a reflection sheet that reflects light emitted from the LED element 220 toward the liquid crystal panel 15 may be provided between the LED element 220 and the LED substrate 22.
  • the reflection sheet is not necessarily required, by using the reflection sheet, the light emitted to the LED substrate 22 or the back cabinet 24 side is effectively used, and the amount of light emitted toward the liquid crystal panel 15 is increased. Can do.
  • the reflection sheet is made of polyester typified by, for example, foamed PET (Polyethylene Terephthalate), and may have light reflection characteristics.
  • the reflective sheet may be a sheet that regularly reflects incident light, but is more preferably a sheet that irregularly reflects light.
  • FIG. 3 is a perspective view showing an arrangement position of the LED substrate 22 with respect to the back cabinet 24. As shown in FIG. 3, the LED substrates 22 are juxtaposed in the longitudinal direction of the liquid crystal panel 15 with the longitudinal direction Y of each LED substrate 22 facing the lateral direction of the liquid crystal panel 15.
  • FIG. 4 is a cross-sectional view showing the arrangement position of the LED substrate 22 with respect to the back cabinet 24 in the present embodiment, and shows a cross section perpendicular to the short direction of the liquid crystal panel 15.
  • the LED substrate 22 is disposed along the back surface (the surface on the back cabinet 24 side) of the liquid crystal panel 15.
  • the plurality of LED substrates 22 are arranged in the longitudinal direction of the liquid crystal panel 15 so as to be along the back surface of the liquid crystal panel 15 in a state where the longitudinal direction Y of each LED substrate 22 faces the short side direction of the liquid crystal panel 15. It is installed.
  • the backlight is applied to the liquid crystal panel 15. Therefore, it is possible to suitably configure a planar light source.
  • the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15, the backlight can be uniformly irradiated to the liquid crystal panel 15.
  • the longitudinal direction Y of the LED substrate 22 faces the direction orthogonal to the bending direction (arc) of the liquid crystal panel 15, even if the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15, The LED substrate 22 does not need to be curved. Therefore, the LED substrate 22 is not stressed, and the processing cost for bending the LED substrate 22 is not necessary.
  • each LED board 22 along the back surface (the surface on the back cabinet 24 side) of the liquid crystal panel 15, as shown in FIG. Part) 243 is provided.
  • the boss 243 includes a claw 244, and the front ends of the side surface portions 23 b and 23 c of the heat spreader 23 are fixed by the claw 244. Moreover, the height of the LED substrate 22 fixed to the boss 243 can be adjusted by adjusting the height of the boss 243 (distance from the bottom surface of the back cabinet 24).
  • each boss 243 may be adjusted so that the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15. For example, the height of each boss 243 is away from the center in the left-right direction when the back cabinet 24 is viewed from the front. The height of the boss 243 at a certain position can be adjusted to be higher.
  • the inclination of the surface to which the heat spreader 23 is fixed in the boss 243 is set along the back surface of the liquid crystal panel 15.
  • the bosses 243 may be provided directly below the LED substrate 22 over the entire length of the LED substrate 22, but at several places (for example, both end portions and the central portion in the longitudinal direction Y of the LED substrate 22) of the LED substrate 22. It may be provided only directly below. This also has the same effect. Further, the LED substrate 22 may be attached to the back cabinet 24 at a position where the boss 243 is not provided.
  • the mechanism for fixing the heat spreader 23 by the boss 243 is not limited to the claw 244, and another configuration may be used instead of the claw 244.
  • FIG. 5 is a perspective view showing a method for attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 in the present embodiment.
  • FIG. 6 is a perspective view showing a mechanism for the LED substrate 22 and the heat spreader 23 in the back cabinet 24.
  • FIG. 7 is a perspective view showing a mechanism for the LED substrate 22 and the heat spreader 23 and the heat spreader 23 in the back cabinet 24. In FIG. 7, the LED substrate 22 is omitted for simplification of description.
  • the back cabinet 24 has claws 244 formed like rails. Then, as shown in FIG. 7, the heat spreader 23 is inserted between the claw 244 and the claw 244 so that the tips of the side surfaces 23 b and 23 c are caught on the claw 244, and is slid along the forming direction of the claw 244. Thus, the heat spreader 23 can be attached to the back cabinet 24 as shown in FIG.
  • the back cabinet 24 is preferably provided with a structure for fixing the heat spreader 23 when the heat spreader 23 is slid to a predetermined position.
  • the LED board 22 or the heat spreader 23 is provided with a notch
  • the back cabinet 24 is provided with a protrusion that fits into the notch when the heat spreader 23 is slid to a predetermined position. Also good.
  • the above-described method of attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 is an example, and can be changed as appropriate as long as the LED substrate 22 can be fixed to the back cabinet 24.
  • the display device 1 may include a deco sheet, a lamp, a remote control circuit, a holder, a bottom bracket, a support bracket, a main circuit, a power circuit, a stand, an auxiliary circuit, a button, a speaker, a top cover, a bottom cover, and the like (not shown). .
  • Embodiment 2 Another embodiment (Embodiment 2) of the present invention will be described as follows.
  • the second embodiment is different from the first embodiment in the structure of the heat spreader 23 and the structure for fixing the heat spreader 23 in the back cabinet 24.
  • Embodiment 1 Only a different part from Embodiment 1 is demonstrated, and description is abbreviate
  • FIG. 1 Another embodiment (Embodiment 2) of the present invention will be described as follows.
  • the second embodiment is different from the first embodiment in the structure of the heat spreader 23 and the structure for fixing the heat spreader 23 in the back cabinet 24.
  • FIG. 8 is a perspective view showing a schematic structure of the LED substrate 22 and the heat spreader 23 coupled to the LED substrate 22 in the present embodiment.
  • one side surface portion (side surface portion 23b) is longer in the short side direction Z than the other side surface portion (side surface portion 23c).
  • the cross section perpendicular to the longitudinal direction Y has a substantially “J” shape (so-called “two-letter shape”).
  • a hook structure for fixing to a claw 241 provided on the back cabinet 24 described later is formed at the tip of the side surface portion 23c (the end portion on the opposite side to the bottom surface portion 23a in the short side direction Z).
  • FIG. 9 is a cross-sectional view showing an arrangement position of the LED substrate 22 with respect to the back cabinet 24 in the present embodiment, and shows a cross section perpendicular to the short direction of the liquid crystal panel 15.
  • the LED substrate 22 is disposed along the back surface (the surface on the back cabinet 24 side) of the liquid crystal panel 15.
  • the plurality of LED substrates 22 are arranged so that the liquid crystal panel 15 extends along the back surface of the liquid crystal panel 15 in a state where the longitudinal direction Y of each LED substrate 22 faces the short direction of the liquid crystal panel 15. 15 are arranged in parallel in the longitudinal direction.
  • the backlight is applied to the liquid crystal panel 15. Therefore, it is possible to suitably configure a planar light source.
  • the LED substrate 22 is disposed along the back surface of the liquid crystal panel 15, the backlight can be uniformly irradiated to the liquid crystal panel 15.
  • the longitudinal direction Y of the LED substrate 22 faces the direction orthogonal to the bending direction (arc) of the liquid crystal panel 15, even if the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15, The LED substrate 22 does not need to be curved. Therefore, the LED substrate 22 is not stressed, and the processing cost for bending the LED substrate 22 is not necessary.
  • each LED board 22 along the back surface of the liquid crystal panel 15 (the surface on the back cabinet 24 side), as shown in FIG. A slit (groove) 242 is provided.
  • the tip of the side surface portion 23c of the heat spreader 23 can be fixed by the claw 241. Moreover, the side part 23b of the heat spreader 23 is inserted in the slit 242, and the side part 23b is fixed.
  • the depth of the slit 242 the height of the LED substrate 22 (distance from the bottom surface of the back cabinet 24) can be adjusted.
  • claw 241 is adjusted collectively, the height and inclination of the LED board 22 can be adjusted more strictly.
  • the lateral side 23b is inserted into the back cabinet 24 and the height of the LED substrate 22 is increased.
  • the slits 242 for adjusting the height the height of the LED substrate 22 relative to the bottom surface of the back cabinet 24 can be easily adjusted.
  • the LED board 22 can be arrange
  • each slit 242 should just be adjusted so that LED board 22 may be arranged so that the back of liquid crystal panel 15 may be met, for example, it is separated from the center of the horizontal direction when back cabinet 24 is seen from the front.
  • the slit 242 located at a different position can be adjusted to be shallower.
  • the inclination of the LED substrate 22 is adjusted along the back surface of the liquid crystal panel 15 by adjusting the height of the claw 241 as shown in FIG.
  • the slit 242 is preferably provided directly below the LED substrate 22 over the entire length of the LED substrate 22.
  • the claw 241 may be provided only directly below several places of the LED substrate 22 (for example, both ends and the central portion in the longitudinal direction Y of the LED substrate 22). This also has the same effect.
  • the mechanism for the back cabinet 24 to fix the side surface portion 23 c is not limited to the claw 241, and another configuration may be used instead of the claw 241.
  • FIG. 10 is a perspective view showing a method for attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 in the present embodiment.
  • FIG. 11 is a perspective view showing a mechanism for attaching the LED board 22 and the heat spreader 23 in the back cabinet 24.
  • FIG. 12 is a perspective view showing a mechanism for attaching the LED substrate 22 and the heat spreader 23 and the heat spreader 23 in the back cabinet 24.
  • the LED substrate 22 is omitted for simplification of description.
  • the back cabinet 24 is formed with claws 241 and slits 242 along each other. Then, as shown in FIG. 12, the heat spreader 23 is inserted into the claw 241 and the slit 242 so that the side surface portion 23 b is inserted into the slit 242 and the tip of the side surface portion 23 c is caught by the claw 241. By sliding along the forming direction, the heat spreader 23 can be attached to the back cabinet 24 as shown in FIG.
  • the back cabinet 24 is preferably provided with a structure for fixing the heat spreader 23 when the heat spreader 23 is slid to a predetermined position.
  • the LED board 22 or the heat spreader 23 is provided with a notch
  • the back cabinet 24 is provided with a protrusion that fits into the notch when the heat spreader 23 is slid to a predetermined position. Also good.
  • the above-described method of attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 is an example, and can be changed as appropriate as long as the LED substrate 22 can be fixed to the back cabinet 24.
  • the back cabinet 24 (the surface on the liquid crystal panel 15 side) is flat, but the back cabinet 24 (the surface on the liquid crystal panel 15 side) is curved to draw an arc.
  • the arc may be orthogonal to the short direction of the liquid crystal panel 15.
  • the plurality of LED substrates 22 are arranged so that the longitudinal direction of the liquid crystal panel 15 extends along the back surface of the liquid crystal panel 15 with the longitudinal direction Y of each LED substrate 22 facing the short direction of the liquid crystal panel 15. It is preferable to arrange in parallel. Thereby, since the longitudinal direction Y of the LED board 22 faces the direction orthogonal to the bending direction of the back cabinet 24, the LED board 22 can be attached to the back cabinet 24 without being bent. is there.
  • the backlight can be uniformly applied to the liquid crystal panel 15.
  • the method for attaching the LED substrate 22 to the back cabinet 24 and the method for adjusting the height of the LED substrate 22 can be performed in the same manner as in the first or second embodiment, for example.
  • the present invention is suitable when one of the liquid crystal panel 15 and the back cabinet 24 is curved so as to draw an arc, and the arc is orthogonal to the lateral direction of the liquid crystal panel 15. Can be applied to.
  • a display device (1) includes a display panel (liquid crystal panel 15), a back cabinet (24), and a plurality of light source substrates attached to the surface of the back cabinet on the display panel side ( LED substrate 22), and one of the display panel and the back cabinet is curved to form an arc, and the arc is orthogonal to the lateral direction of the display panel,
  • a plurality of light sources LED elements 220
  • the plurality of light source substrates are arranged such that the longitudinal direction of each light source substrate is shorter than the display panel.
  • the display panel is arranged in parallel in the longitudinal direction of the display panel so as to be along the back surface of the display panel.
  • the longitudinal direction of a light source substrate has faced the direction orthogonal to a curve direction, while being able to attach a light source substrate to a back cabinet, without curving, the back surface of a display panel It can arrange so that.
  • the display device according to aspect 2 of the present invention is the display apparatus according to aspect 1, in which a heat sink (heat spreader 23) is coupled to the surface of each light source substrate on the back cabinet side, and each light source substrate is connected to the heat sink. It may be attached to the back cabinet via.
  • a heat sink heat spreader 23
  • a light source board is attached to a back cabinet via a heat sink, heat dissipation of a light source board and attachment to the back cabinet of a light source board are realizable with few components and cost. .
  • the display device is the display apparatus according to aspect 2, wherein the heat dissipation plate includes a bottom surface portion (23a) coupled to the light source substrate and at least one end portion in the short-side direction (X) of the bottom surface portion. Side surfaces (23b, 23c) bent to the back cabinet side.
  • a heat sink has a structure which consists of a bottom face part and the side part which bends from at least one edge part of the transversal direction of a bottom face part, (i) The surface area of a heat sink is enlarged.
  • the heat dissipation efficiency of the light source board coupled to the heat sink can be improved, and (ii) the rigidity of the heat sink can be increased and the warp of the light source board coupled to the heat sink can be suppressed with a simple configuration. Can do.
  • the display device is the display apparatus according to aspect 3, wherein the side surface portions are a pair of side surface portions that are bent from both ends of the bottom surface in the short direction toward the back cabinet, and the pair of side surfaces.
  • the sections have the same width in the lateral direction (Z), and the pair of side surface portions are fixed to the back cabinet, and the height of the light source substrate with respect to the bottom surface of the back cabinet is adjusted.
  • a protrusion (boss 243) may be formed.
  • the height of the light source board with respect to the bottom face of a back cabinet is easily adjusted by fixing the heat sink which has a side part whose width of a transversal direction is mutually the same to the protrusion part of a back cabinet. can do.
  • substrate can be arrange
  • the display device according to Aspect 5 of the present invention is the display device according to Aspect 3, wherein the side surface portions are a pair of side surface portions bent from both ends in the short direction of the bottom surface portion to the back cabinet side.
  • the side surface portions are a pair of side surface portions bent from both ends in the short direction of the bottom surface portion to the back cabinet side.
  • one side part has a shorter width in the lateral direction than the other side part, and the one side part is inserted into the back cabinet, and the back cabinet
  • the groove part (slit 242) for adjusting the height of the said light source substrate with respect to the bottom face may be formed.
  • the height of the light source board with respect to the bottom face of a back cabinet can be easily adjusted by inserting the side part with the long width
  • substrate can be arrange
  • the heat sinks may be heat sinks having the same shape.
  • a television receiver according to aspect 7 of the present invention includes the display device according to any one of aspects 1 to 6.
  • the television receiver has the same effect as any one of the first to sixth aspects.
  • the present invention can be used generally for display devices including television receivers.
  • Display device 10 Front cabinet 15 Liquid crystal panel (display panel) 22 LED board (light source board) 220 LED element (light source) 23 Heat spreader (heat sink) 23a Bottom part 23b Side part 23c Side part 24 Back cabinet 241 Claw 242 Slit (groove part) 243 Boss (projection) 244 nails

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

　This liquid crystal panel (15) curves in such a way as to describe an arc, the arc being orthogonal to the latitudinal direction of the liquid crystal panel (15). LED substrates (22), oriented so that the longitudinal direction of the LED substrates (22) lie in the latitudinal direction of the liquid crystal panel (15), are arrayed in the longitudinal direction of the liquid crystal panel (15), along the surface at the back cabinet (24) side of the liquid crystal panel (15).

Description

表示装置およびテレビジョン受像機Display device and television receiver
　本発明は、表示装置および当該表示装置を備えるテレビジョン受像機に関する。 The present invention relates to a display device and a television receiver including the display device.
　近年、液晶パネルが湾曲している表示装置が開発されている（特許文献１～３）。 Recently, display devices with curved liquid crystal panels have been developed (Patent Documents 1 to 3).
　上記の表示装置において、液晶パネルに対して均一にバックライトを照射するためには、液晶パネルの裏面に沿ってバックライト用の光源を配置する必要がある。そのため、特許文献１～３に記載の表示装置では、バックライト基板を、液晶パネルに合わせて湾曲させている。 In the above display device, in order to uniformly irradiate the backlight to the liquid crystal panel, it is necessary to arrange a light source for the backlight along the back surface of the liquid crystal panel. Therefore, in the display devices described in Patent Documents 1 to 3, the backlight substrate is curved in accordance with the liquid crystal panel.
日本国公開特許公報「特開２００７－１７１６８１号公報（２００７年７月５日公開）」Japanese Patent Publication “JP 2007-171681 A” (published July 5, 2007) 日本国公開特許公報「特開２００８－３０４５３５号公報（２００８年１２月１８日公開）」Japanese Patent Publication “Japanese Patent Laid-Open No. 2008-304535 (December 18, 2008)” 日本国公開特許公報「特開２００９－９３０００号公報（２００９年４月３０日公開）」Japanese Patent Publication “Japanese Unexamined Patent Publication No. 2009-93000 (published on April 30, 2009)”
　本発明者らは、表示装置の製造コストを低減するため、複数の光源が配列されたバックライト用の光源基板を、バックキャビネットに直接取り付ける構造を検討している。 In order to reduce the manufacturing cost of a display device, the present inventors are examining a structure in which a light source substrate for a backlight in which a plurality of light sources are arranged is directly attached to a back cabinet.
　このような構造を、表示パネルが湾曲している表示装置において採用した場合、以下のような問題が生じ得る。 When such a structure is adopted in a display device having a curved display panel, the following problems may occur.
　すなわち、表示パネルの裏面に沿ってバックライト用の光源を配置するため、バックライト用の光源基板を、従来技術のように表示パネルに合わせて湾曲させた場合、光源基板にストレスが掛かるとともに、光源基板を湾曲させるための加工コストが必要となる。 That is, in order to arrange the light source for backlight along the back surface of the display panel, when the light source substrate for backlight is curved according to the display panel as in the prior art, the light source substrate is stressed, A processing cost for bending the light source substrate is required.
　また、バックキャビネットが湾曲している表示装置においても、バックライト用の光源基板をバックキャビネットに直接取り付けるために当該光源基板を湾曲させた場合、同様の問題が生じる。 In the display device in which the back cabinet is curved, the same problem occurs when the light source substrate is curved in order to directly attach the light source substrate for backlight to the back cabinet.
　本発明は、上記課題に鑑みてなされたものであり、表示パネルおよびバックキャビネットのうちの少なくとも一方が湾曲している表示装置において、バックライト用の光源基板を、湾曲させることなく、バックキャビネットに取り付けると共に、表示パネルの裏面に沿うように配置するための技術を提供することを主たる目的とする。 The present invention has been made in view of the above problems, and in a display device in which at least one of a display panel and a back cabinet is curved, the backlight light source substrate is not curved, and the back cabinet is used. A main object is to provide a technique for mounting and arranging the display panel along the back surface of the display panel.
　上記の課題を解決するために、本発明の一態様に係る表示装置は、表示パネルと、バックキャビネットと、該バックキャビネットの該表示パネル側の面に取り付けられている複数の光源基板と、を備え、該表示パネルおよび該バックキャビネットのうちの少なくとも一方は、弧を描くように湾曲しており、当該弧は液晶パネルの短手方向に直交しており、各光源基板には、その長手方向に沿って複数の光源が配列されおり、該複数の光源基板は、各光源基板の長手方向が該表示パネルの短手方向に向いた状態で、該表示パネルの該バックキャビネット側の面に沿うように該表示パネルの長手方向に並設されている。 In order to solve the above problems, a display device according to one embodiment of the present invention includes a display panel, a back cabinet, and a plurality of light source substrates attached to the surface of the back cabinet on the display panel side. And at least one of the display panel and the back cabinet is curved so as to draw an arc, and the arc is orthogonal to the lateral direction of the liquid crystal panel. The plurality of light source substrates are arranged along the surface of the display panel on the back cabinet side in a state in which the longitudinal direction of each light source substrate is oriented in the short direction of the display panel. In this manner, the display panels are arranged side by side in the longitudinal direction.
　本発明の一態様によれば、光源基板の長手方向が、湾曲方向に対して直交する方向を向いているため、光源基板を、湾曲させることなく、バックキャビネットに取り付けることができると共に、表示パネルの裏面に沿うように配置することができる。 According to one embodiment of the present invention, since the longitudinal direction of the light source substrate faces the direction orthogonal to the bending direction, the light source substrate can be attached to the back cabinet without being bent, and the display panel It can arrange | position along the back surface of.
本発明の一実施形態に係る表示装置の概略構成を模式的に示す図であり、（ａ）は表示装置の正面を示す平面図であり、（ｂ）は、表示装置の断面図であって、液晶パネルの短手方向に垂直な断面を示しており、（ｃ）は、表示装置の断面図であって、液晶パネルの長手方向に垂直な断面を示しており、（ｄ）は表示装置の背面を示す平面図を示す。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows typically schematic structure of the display apparatus which concerns on one Embodiment of this invention, (a) is a top view which shows the front of a display apparatus, (b) is sectional drawing of a display apparatus, 2 shows a cross section perpendicular to the short direction of the liquid crystal panel, (c) is a cross sectional view of the display device, showing a cross section perpendicular to the longitudinal direction of the liquid crystal panel, and (d) is a display device. The top view which shows the back surface of is shown. 本発明の一実施形態における光源基板および放熱板の構造を示す斜視図である。It is a perspective view which shows the structure of the light source board | substrate and heat sink in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットに対する光源基板の配置位置を示す斜視図である。It is a perspective view which shows the arrangement position of the light source board | substrate with respect to the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットに対する光源基板および放熱板の配置位置を示す断面図である。It is sectional drawing which shows the arrangement position of the light source board | substrate and heat sink with respect to the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットに対する光源基板および放熱板の取り付け方法を示す斜視図である。It is a perspective view which shows the attachment method of the light source board | substrate and heat sink with respect to the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットにおける光源基板および放熱板の取り付けのための機構を示す斜視図である。It is a perspective view which shows the mechanism for attachment of the light source board | substrate and heat sink in the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットにおける光源基板および放熱板の取り付けのための機構および放熱板を示す斜視図である。It is a perspective view which shows the mechanism for attaching the light source board | substrate and heat sink in the back cabinet in one Embodiment of this invention, and a heat sink. 本発明の一実施形態における光源基板および放熱板の構造を示す斜視図である。It is a perspective view which shows the structure of the light source board | substrate and heat sink in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットに対する光源基板および放熱板の配置位置を示す断面図である。It is sectional drawing which shows the arrangement position of the light source board | substrate and heat sink with respect to the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットに対する光源基板および放熱板の取り付け方法を示す斜視図である。It is a perspective view which shows the attachment method of the light source board | substrate and heat sink with respect to the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットにおける光源基板および放熱板の取り付けのための機構を示す斜視図である。It is a perspective view which shows the mechanism for attachment of the light source board | substrate and heat sink in the back cabinet in one Embodiment of this invention. 本発明の一実施形態におけるバックキャビネットにおける光源基板および放熱板の取り付けのための機構および放熱板を示す斜視図である。It is a perspective view which shows the mechanism for attaching the light source board | substrate and heat sink in the back cabinet in one Embodiment of this invention, and a heat sink.
　〔実施形態１〕
　本発明の一実施形態（実施形態１）に係る表示装置１について、図１から図９を用いて説明する。本実施形態に係る表示装置１は、これに限定されないが、例えば、テレビジョン受像機であり得る。なお、以下の説明では本発明を実施するために好ましい種々の限定が付加されているが、本発明の技術的範囲は以下の実施形態及び図面の記載に限定されるものではない。 [Embodiment 1]
A display device 1 according to an embodiment (Embodiment 1) of the present invention will be described with reference to FIGS. The display device 1 according to the present embodiment is not limited to this, but may be, for example, a television receiver. In addition, although various restrictions preferable for implementing this invention are added in the following description, the technical scope of this invention is not limited to description of the following embodiment and drawing.
　なお、表示装置１において表示画面が存在する側を正面と称し、その反対側を背面と称する。また、表示装置１を正面から見たときの水平方向を、単に水平方向と、表示装置１を正面から見たときの垂直方向を、単に垂直方向と称する。また、液晶パネル１５の長手方向とは、液晶パネル１５の表示画面の長手方向を指し、当該表示画面が矩形状である場合には、当該表示画面の長辺と平行な方向を指す。また、液晶パネル１５の短手方向とは、液晶パネル１５の表示画面の短手方向を指し、当該表示画面が矩形状である場合には、当該表示画面の短辺と平行な方向を指す。本実施形態では、液晶パネル（表示パネル）１５の長手方向は水平方向に平行になっており、液晶パネル１５の短手方向は、垂直方向に平行になっているが、本発明はこれに限定されず、液晶パネル１５の長手方向は水平方向と非平行であってもよく、液晶パネル１５の短手方向は、垂直方向と非平行であってもよい。 In the display device 1, the side where the display screen is present is referred to as the front, and the opposite side is referred to as the back. In addition, the horizontal direction when the display device 1 is viewed from the front is simply referred to as the horizontal direction, and the vertical direction when the display device 1 is viewed from the front is simply referred to as the vertical direction. The longitudinal direction of the liquid crystal panel 15 refers to the longitudinal direction of the display screen of the liquid crystal panel 15, and in the case where the display screen is rectangular, it refers to the direction parallel to the long side of the display screen. The short direction of the liquid crystal panel 15 refers to the short direction of the display screen of the liquid crystal panel 15, and in the case where the display screen is rectangular, it refers to the direction parallel to the short side of the display screen. In the present embodiment, the longitudinal direction of the liquid crystal panel (display panel) 15 is parallel to the horizontal direction, and the short side direction of the liquid crystal panel 15 is parallel to the vertical direction, but the present invention is limited to this. Alternatively, the longitudinal direction of the liquid crystal panel 15 may be non-parallel to the horizontal direction, and the short side direction of the liquid crystal panel 15 may be non-parallel to the vertical direction.
　また、本実施形態において表示装置１は、液晶表示装置である。 In the present embodiment, the display device 1 is a liquid crystal display device.
　（表示装置の構成）
　図１は、表示装置１の概略構成を模式的に示す図であり、（ａ）は表示装置の正面を示す平面図であり、（ｂ）は、表示装置の断面図であって、液晶パネルの短手方向に垂直な断面を示しており、（ｃ）は、表示装置の断面図であって、液晶パネルの長手方向に垂直な断面を示しており、（ｄ）は表示装置の背面を示す平面図を示す。 (Configuration of display device)
1A and 1B are diagrams schematically showing a schematic configuration of a display device 1, FIG. 1A is a plan view showing a front surface of the display device, and FIG. 2C is a cross-sectional view of the display device, and shows a cross-section perpendicular to the longitudinal direction of the liquid crystal panel, and FIG. The top view shown is shown.
　図１に示すように、表示装置１は、フロントキャビネット１０、液晶パネル（表示パネル）１５、ＬＥＤ基板（光源基板）２２、ヒートスプレッダ（放熱板）２３およびバックキャビネット２４を備えている。 As shown in FIG. 1, the display device 1 includes a front cabinet 10, a liquid crystal panel (display panel) 15, an LED substrate (light source substrate) 22, a heat spreader (heat radiating plate) 23, and a back cabinet 24.
　フロントキャビネット１０は、主に、液晶パネル１５を囲う筐体である。バックキャビネット２４は、主に、表示装置１の背面を覆う筐体である。フロントキャビネット１０およびバックキャビネット２４は、主に、例えばプラスチック等の射出成型物によって構成されている。 The front cabinet 10 is a casing that mainly surrounds the liquid crystal panel 15. The back cabinet 24 is a housing that mainly covers the back surface of the display device 1. The front cabinet 10 and the back cabinet 24 are mainly composed of an injection molded product such as plastic.
　液晶パネル１５としては、例えば、公知の方式の液晶表示パネル（ＬＣＤ）を用いることができ、特に、透過型または半透過型液晶表示パネルを好適に用いることができる。また、液晶パネル１５は、弧を描くように湾曲しており、当該弧は液晶パネル１５の短手方向に直交している。換言すれば、本実施形態では、液晶パネル１５は水平方向に弧を描くように湾曲している。このような湾曲している液晶パネルは、例えば、特許文献１～３に示すように公知技術である。 As the liquid crystal panel 15, for example, a well-known liquid crystal display panel (LCD) can be used, and in particular, a transmissive or transflective liquid crystal display panel can be suitably used. The liquid crystal panel 15 is curved so as to draw an arc, and the arc is orthogonal to the short direction of the liquid crystal panel 15. In other words, in the present embodiment, the liquid crystal panel 15 is curved so as to draw an arc in the horizontal direction. Such a curved liquid crystal panel is a known technique as shown in Patent Documents 1 to 3, for example.
　なお、液晶パネル１５のバックキャビネット２４側の面には、所望の光学性能を得るための、拡散シート、プリズムシート、マイクロレンズシート等の任意の光学シートが積層されていてもよい。なお、光学シートの枚数及び組み合わせは特に限定されない。液晶パネル１５および光学シートは、例えば、図示しないベゼル、Ｐシャーシ（中間シャーシ）、ポロン（緩衝材）、クリップ（光学シートとＬＥＤ基板２２との間隔を維持するための支持柱）等によって支持され得る。 Note that an arbitrary optical sheet such as a diffusion sheet, a prism sheet, or a microlens sheet for obtaining desired optical performance may be laminated on the surface of the liquid crystal panel 15 on the back cabinet 24 side. The number and combination of optical sheets are not particularly limited. The liquid crystal panel 15 and the optical sheet are supported by, for example, a not-shown bezel, a P chassis (intermediate chassis), a poron (buffer material), a clip (a support column for maintaining a distance between the optical sheet and the LED substrate 22), and the like. obtain.
　（ＬＥＤ基板およびヒートスプレッダ）
　続いて、ＬＥＤ基板２２およびヒートスプレッダ２３について詳細に説明する。図２は、本実施形態におけるＬＥＤ基板２２およびＬＥＤ基板２２に結合されたヒートスプレッダ２３の概略構造を示す斜視図である。 (LED substrate and heat spreader)
Next, the LED substrate 22 and the heat spreader 23 will be described in detail. FIG. 2 is a perspective view showing a schematic structure of the LED substrate 22 and the heat spreader 23 coupled to the LED substrate 22 in the present embodiment.
　ＬＥＤ基板２２は、バックライトシャーシ等が用いられることなく、ヒートスプレッダ２３を介して、バックキャビネット２４の液晶パネル１５側の面に取り付けられている。これにより、少ない部品点数およびコストで、光源基板の放熱と、光源基板のバックキャビネットへの取り付けとを実現することができる。また、組み立て工程を簡略化することができる。特に、各ＬＥＤ基板２２に結合されるヒートスプレッダ２３の夫々の形状が互いに同一であれば、よりコストを低減することができる。 The LED substrate 22 is attached to the surface of the back cabinet 24 on the liquid crystal panel 15 side via a heat spreader 23 without using a backlight chassis or the like. Thereby, heat dissipation of the light source substrate and attachment of the light source substrate to the back cabinet can be realized with a small number of parts and cost. In addition, the assembly process can be simplified. In particular, if the shapes of the heat spreaders 23 coupled to the LED substrates 22 are the same, the cost can be further reduced.
　ＬＥＤ基板２２は平板状であり、短冊形の形状を有している。また、ＬＥＤ基板２２のうち、バックキャビネット２４の側とは反対側の面には、ＬＥＤ基板２２の長手方向Ｙに沿って複数のＬＥＤ素子（光源）２２０が配列（並んで配置）されている。このように、ＬＥＤ基板２２には、複数のＬＥＤ素子２２０が設けられており、ＬＥＤ基板２２を用いることにより、複数のＬＥＤ素子２２０を簡易に表示装置１内に配置することができる。 The LED substrate 22 is flat and has a strip shape. Further, a plurality of LED elements (light sources) 220 are arranged (arranged side by side) along the longitudinal direction Y of the LED substrate 22 on the surface of the LED substrate 22 opposite to the back cabinet 24 side. . Thus, the LED substrate 22 is provided with a plurality of LED elements 220, and by using the LED substrate 22, the plurality of LED elements 220 can be easily arranged in the display device 1.
　なお、図示しないが、ＬＥＤ基板２２の長手方向Ｙの一方の端部には、表示装置のメイン回路に電気的に接続するためのコネクタが設けられていてもよい。また、その場合、ＬＥＤ基板２２に、当該コネクタと各ＬＥＤ素子２２０とを電気的に接続するための回路が設けられていてもよい（図示せず）。 Although not shown, a connector for electrically connecting to the main circuit of the display device may be provided at one end in the longitudinal direction Y of the LED substrate 22. In that case, a circuit for electrically connecting the connector and each LED element 220 may be provided on the LED board 22 (not shown).
　そして、図３に示すように、バックキャビネット２４にＬＥＤ基板２２を複数列並べることにより、液晶表示装置のバックライトとして好適な平面光源を得ることができる。 Then, as shown in FIG. 3, by arranging a plurality of LED substrates 22 in the back cabinet 24, a flat light source suitable as a backlight of a liquid crystal display device can be obtained.
　なお、本実施形態では、光源としてＬＥＤ素子を用いた場合を例に挙げて説明したが、本発明はこれに限定されるものではなく、例えば、光源として、蛍光管などＬＥＤ素子以外の光源を用いる構成を採用してもよい。 In this embodiment, the case where an LED element is used as the light source has been described as an example. However, the present invention is not limited to this, and for example, a light source other than the LED element such as a fluorescent tube is used as the light source. You may employ | adopt the structure to be used.
　また、ＬＥＤ基板２２の数および各ＬＥＤ基板２２に配置される光源の数は特に限定されない。 Further, the number of LED boards 22 and the number of light sources arranged on each LED board 22 are not particularly limited.
　ヒートスプレッダ２３は、ＬＥＤ基板２２の裏面（バックキャビネット２４側の面）に結合する底面部２３ａと、底面部２３ａの短手方向Ｘの両端からバックキャビネット２４側に折れ曲がる一対の側面部２３ｂおよび２３ｃとを備えている。このようなヒートスプレッダ２３は、例えば、一枚の金属板を折り曲げることによって容易に構成することができる。なお、底面部２３ａと側面部２３ｂまたは側面部２３ｃとの角度は９０度程度であることが好ましい。 The heat spreader 23 includes a bottom surface portion 23a coupled to the back surface (the surface on the back cabinet 24 side) of the LED substrate 22, and a pair of side surface portions 23b and 23c that are bent from both ends of the bottom surface portion 23a in the lateral direction X toward the back cabinet 24 It has. Such a heat spreader 23 can be easily configured, for example, by bending a single metal plate. The angle between the bottom surface portion 23a and the side surface portion 23b or the side surface portion 23c is preferably about 90 degrees.
　このように、底面部２３ａならびに側面部２３ｂおよび２３ｃからなるヒートスプレッダ２３を用いることにより、簡易な構成で、ＬＥＤ基板２２の放熱効率を向上させ、ＬＥＤ基板２２の反りを抑制することができる。すなわち、底面部２３ａの短手方向Ｘの両端からバックキャビネット２４側に折れ曲がる一対の側面部２３ｂおよび２３ｃを備えていることにより、（ｉ）ヒートスプレッダ２３の表面積を広くして、気中への放熱効果を向上させることができるため、ヒートスプレッダ２３に結合されたＬＥＤ基板２２の放熱効率を向上させることができると共に、（ｉｉ）ヒートスプレッダ２３の剛性を高めることができるため、ヒートスプレッダ２３に結合されたＬＥＤ基板２２の反りを抑制することができる。これにより、ＬＥＤ基板２２をバックキャビネット２４に取り付けた場合であっても、ＬＥＤ基板２２の放熱効率を十分に確保し、ＬＥＤ基板２２の反りを抑制することができる。また、バックキャビネット２４の強度を補強する効果も有する。また、ヒートスプレッダ２３を軽量に構成することができる。 Thus, by using the heat spreader 23 including the bottom surface portion 23a and the side surface portions 23b and 23c, the heat dissipation efficiency of the LED substrate 22 can be improved and the warpage of the LED substrate 22 can be suppressed with a simple configuration. That is, by providing a pair of side surface portions 23b and 23c that bend toward the back cabinet 24 from both ends in the short side direction X of the bottom surface portion 23a, (i) the heat spreader 23 has a large surface area to dissipate heat into the air. Since the effect can be improved, the heat dissipation efficiency of the LED substrate 22 coupled to the heat spreader 23 can be improved, and (ii) the rigidity of the heat spreader 23 can be increased, so that the LED coupled to the heat spreader 23 can be improved. Warpage of the substrate 22 can be suppressed. Thereby, even if it is a case where the LED board 22 is attached to the back cabinet 24, sufficient heat dissipation efficiency of the LED board 22 is ensured, and the curvature of the LED board 22 can be suppressed. Moreover, it also has an effect of reinforcing the strength of the back cabinet 24. Further, the heat spreader 23 can be configured to be lightweight.
　なお、本実施形態では、ヒートスプレッダ２３は、底面部２３ａの短手方向Ｘの両端からバックキャビネット２４側に折れ曲がる一対の側面部２３ｂおよび２３ｃを備えているが、本発明では、放熱板は、底面部の短手方向Ｘの少なくとも一方の端部からバックキャビネット側に折れ曲がっている側面部を備えていればよい。 In the present embodiment, the heat spreader 23 includes a pair of side surface portions 23b and 23c that are bent from both ends of the bottom surface portion 23a in the short direction X toward the back cabinet 24 side. What is necessary is just to provide the side part bent to the back cabinet side from the at least one edge part of the transversal direction X of a part.
　さらに詳細には、本実施形態に係るヒートスプレッダ２３は、側面部２３ｂおよび２３ｃの短手方向Ｚの長さが互いに同一であり、長手方向Ｙと垂直な断面が略Ｕ字状（いわゆる「コの字状」）である。 More specifically, in the heat spreader 23 according to the present embodiment, the lengths of the side surfaces 23b and 23c in the short direction Z are the same, and the cross section perpendicular to the longitudinal direction Y is substantially U-shaped (so-called Character shape)).
　また、側面部２３ｂおよび２３ｃの先端（短手方向Ｚにおける底面部２３ａとは反対側の端部）には、後述するバックキャビネット２４に設けられた爪２４４によって固定されるための鉤構造が形成されている。 In addition, a hook structure is formed at the tips of the side surfaces 23b and 23c (the end opposite to the bottom surface 23a in the lateral direction Z) by a claw 244 provided in the back cabinet 24 described later. Has been.
　ヒートスプレッダ２３は、金属などの、放熱性がＬＥＤ基板２２に比べて高い物質によって形成されることが好ましい。これにより、ＬＥＤ基板２２の放熱効率をより向上させることができる。例えば、これに限定するものではないが、ヒートスプレッダ２３はＳＰＴＥによって形成することができる。 The heat spreader 23 is preferably formed of a material such as a metal that has a higher heat dissipation than the LED substrate 22. Thereby, the thermal radiation efficiency of LED board 22 can be improved more. For example, although not limited to this, the heat spreader 23 can be formed by SPTE.
　なお、底面部２３ａ、側面部２３ｂおよび側面部２３ｃは、平面である必要は無く、一部または全部が曲面であってもよい。 Note that the bottom surface portion 23a, the side surface portion 23b, and the side surface portion 23c do not have to be flat surfaces, and some or all of them may be curved surfaces.
　ヒートスプレッダ２３とＬＥＤ基板２２とは、熱伝導する態様で結合していればよい。例えば、これに限定するものではないが、ヒートスプレッダ２３とＬＥＤ基板２２とは、熱伝導両面テープによって結合されてもよい。 The heat spreader 23 and the LED substrate 22 only need to be coupled in a thermally conductive manner. For example, but not limited to this, the heat spreader 23 and the LED substrate 22 may be coupled by a heat conductive double-sided tape.
　なお、ヒートスプレッダ２３が金属のような導電体によって構成されている場合、ＬＥＤ基板２２のアース電位部と、ヒートスプレッダ２３とは、電気的に接続されていてもよい。これにより、導電体からなるヒートスプレッダ２３をＬＥＤ基板２２のグランド接続のための経路として用いることができるとともに、導電体からなるヒートスプレッダ２３が電気的に浮いている場合に生じ得る悪影響を回避することができる。 In addition, when the heat spreader 23 is configured by a conductor such as metal, the ground potential portion of the LED substrate 22 and the heat spreader 23 may be electrically connected. Accordingly, the heat spreader 23 made of a conductor can be used as a path for ground connection of the LED substrate 22, and an adverse effect that may occur when the heat spreader 23 made of a conductor is electrically floating can be avoided. it can.
　また、ＬＥＤ基板２２およびヒートスプレッダ２３には、他の部材の干渉を避けるための切り欠きまたは開口部が設けられていてもよい。ＬＥＤ基板２２およびヒートスプレッダ２３には、バックキャビネット２４へ固定するための構造（例えば、嵌合のための爪、切り欠き等）が設けられていてもよい。 Further, the LED substrate 22 and the heat spreader 23 may be provided with notches or openings for avoiding interference of other members. The LED substrate 22 and the heat spreader 23 may be provided with a structure for fixing to the back cabinet 24 (for example, a nail for fitting, a notch, etc.).
　また、ＬＥＤ素子２２０とＬＥＤ基板２２との間には、ＬＥＤ素子２２０から出射される光を液晶パネル１５側に反射する反射シートが設けられていてもよい。反射シートは必ずしも必要となるわけではないが、反射シートを用いることによってＬＥＤ基板２２またはバックキャビネット２４側に照射される光を有効に利用し、液晶パネル１５に向けて出射される光量を増やすことができる。反射シートは、例えば、発泡ＰＥＴ（Polyethylene Terephthalate）などに代表されるポリエステルから形成されており、光の反射特性を有するものであり得る。なお、反射シートは、入射した光が正反射するシートであってもよいが、乱反射するシートであることがより好ましい。 Further, a reflection sheet that reflects light emitted from the LED element 220 toward the liquid crystal panel 15 may be provided between the LED element 220 and the LED substrate 22. Although the reflection sheet is not necessarily required, by using the reflection sheet, the light emitted to the LED substrate 22 or the back cabinet 24 side is effectively used, and the amount of light emitted toward the liquid crystal panel 15 is increased. Can do. The reflection sheet is made of polyester typified by, for example, foamed PET (Polyethylene Terephthalate), and may have light reflection characteristics. The reflective sheet may be a sheet that regularly reflects incident light, but is more preferably a sheet that irregularly reflects light.
　（ＬＥＤ基板およびヒートスプレッダのバックキャビネットへの取り付け）
　図３は、バックキャビネット２４に対するＬＥＤ基板２２の配置位置を示す斜視図である。図３に示すように、ＬＥＤ基板２２は、各ＬＥＤ基板２２の長手方向Ｙが液晶パネル１５の短手方向に向いた状態で、液晶パネル１５の長手方向に並設されている。 (Attaching the LED board and heat spreader to the back cabinet)
FIG. 3 is a perspective view showing an arrangement position of the LED substrate 22 with respect to the back cabinet 24. As shown in FIG. 3, the LED substrates 22 are juxtaposed in the longitudinal direction of the liquid crystal panel 15 with the longitudinal direction Y of each LED substrate 22 facing the lateral direction of the liquid crystal panel 15.
　また、図４は、本実施形態におけるバックキャビネット２４に対するＬＥＤ基板２２の配置位置を示す断面図であり、液晶パネル１５の短手方向に垂直な断面を示す。ＬＥＤ基板２２は、液晶パネル１５の裏面（バックキャビネット２４側の面）に沿うように配置されている。 FIG. 4 is a cross-sectional view showing the arrangement position of the LED substrate 22 with respect to the back cabinet 24 in the present embodiment, and shows a cross section perpendicular to the short direction of the liquid crystal panel 15. The LED substrate 22 is disposed along the back surface (the surface on the back cabinet 24 side) of the liquid crystal panel 15.
　このように、複数のＬＥＤ基板２２は、各ＬＥＤ基板２２の長手方向Ｙが液晶パネル１５の短手方向に向いた状態で、液晶パネル１５の裏面に沿うように液晶パネル１５の長手方向に並設されている。複数のＬＥＤ基板２２を、各ＬＥＤ基板２２の長手方向Ｙが液晶パネル１５の短手方向に向いた状態で、液晶パネル１５の長手方向に並設することにより、液晶パネル１５にバックライトを照射するための平面光源を好適に構成することができる。特に、ＬＥＤ基板２２が液晶パネル１５の裏面に沿うように配置されているため、液晶パネル１５に対して、均一にバックライトを照射することができる。そして、ＬＥＤ基板２２の長手方向Ｙが、液晶パネル１５の湾曲方向（弧）に対して直交する方向を向いているため、ＬＥＤ基板２２を液晶パネル１５の裏面に沿うように配置したとしても、ＬＥＤ基板２２を、湾曲させる必要が無い。ゆえに、ＬＥＤ基板２２にストレスが掛かることがなく、ＬＥＤ基板２２を湾曲させるための加工コストも必要ない。 As described above, the plurality of LED substrates 22 are arranged in the longitudinal direction of the liquid crystal panel 15 so as to be along the back surface of the liquid crystal panel 15 in a state where the longitudinal direction Y of each LED substrate 22 faces the short side direction of the liquid crystal panel 15. It is installed. By arranging a plurality of LED substrates 22 in parallel in the longitudinal direction of the liquid crystal panel 15 with the longitudinal direction Y of each LED substrate 22 facing the lateral direction of the liquid crystal panel 15, the backlight is applied to the liquid crystal panel 15. Therefore, it is possible to suitably configure a planar light source. In particular, since the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15, the backlight can be uniformly irradiated to the liquid crystal panel 15. And since the longitudinal direction Y of the LED substrate 22 faces the direction orthogonal to the bending direction (arc) of the liquid crystal panel 15, even if the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15, The LED substrate 22 does not need to be curved. Therefore, the LED substrate 22 is not stressed, and the processing cost for bending the LED substrate 22 is not necessary.
　ここで、本実施形態では、各ＬＥＤ基板２２を、液晶パネル１５の裏面（バックキャビネット２４側の面）に沿うように配置するために、図４に示すように、バックキャビネット２４にボス（突起部）２４３を設けている。 Here, in this embodiment, in order to arrange each LED board 22 along the back surface (the surface on the back cabinet 24 side) of the liquid crystal panel 15, as shown in FIG. Part) 243 is provided.
　ボス２４３は、爪２４４を備えており、爪２４４によって、ヒートスプレッダ２３の側面部２３ｂおよび２３ｃの先端を固定する。また、ボス２４３の高さ（バックキャビネット２４の底面からの距離）を調整することにより、ボス２４３に固定されるＬＥＤ基板２２の高さを調整することができる。 The boss 243 includes a claw 244, and the front ends of the side surface portions 23 b and 23 c of the heat spreader 23 are fixed by the claw 244. Moreover, the height of the LED substrate 22 fixed to the boss 243 can be adjusted by adjusting the height of the boss 243 (distance from the bottom surface of the back cabinet 24).
　このように、側面部２３ｂおよび２３ｃの短手方向Ｚの幅が互いに同一であるヒートスプレッダ２３を用いる場合、（ｉ）バックキャビネット２４に、バックキャビネット２４の底面に対するＬＥＤ基板２２の高さを調整するためのボス２４３を形成し、（ｉｉ）ボス２４３に側面部２３ｂおよび２３ｃを固定することにより、バックキャビネット２４の底面に対するＬＥＤ基板２２の高さを容易に調整することができる。これにより、ＬＥＤ基板２２を、より容易に、図４に示すように、液晶パネル１５の裏面に沿うように配置することができる。 Thus, when using the heat spreader 23 with the width | variety of the short side direction Z of the side parts 23b and 23c mutually being used, (i) The height of the LED board 22 with respect to the bottom face of the back cabinet 24 is adjusted to the back cabinet 24. Therefore, the height of the LED substrate 22 with respect to the bottom surface of the back cabinet 24 can be easily adjusted by forming the boss 243 and (ii) fixing the side surface portions 23b and 23c to the boss 243. Thereby, the LED board 22 can be arrange | positioned along the back surface of the liquid crystal panel 15 more easily as shown in FIG.
　各ボス２４３の高さは、ＬＥＤ基板２２を液晶パネル１５の裏面に沿うように配置するように調整されていればよく、例えば、バックキャビネット２４を正面から見たときの左右方向の中心から離れた位置にあるボス２４３程、高さが高くなるように調整することができる。 The height of each boss 243 may be adjusted so that the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15. For example, the height of each boss 243 is away from the center in the left-right direction when the back cabinet 24 is viewed from the front. The height of the boss 243 at a certain position can be adjusted to be higher.
　また、図４に示すように、ボス２４３におけるヒートスプレッダ２３が固定される面の傾きは、液晶パネル１５の裏面に沿うように設定されていることが好ましい。 Further, as shown in FIG. 4, it is preferable that the inclination of the surface to which the heat spreader 23 is fixed in the boss 243 is set along the back surface of the liquid crystal panel 15.
　なお、ボス２４３は、ＬＥＤ基板２２の全長に亘って、ＬＥＤ基板２２の直下に設けてもよいが、ＬＥＤ基板２２の数カ所（例えば、ＬＥＤ基板２２の長手方向Ｙの両端部および中央部）の直下のみに設けてもよい。これによっても、同等の効果を奏することができる。また、ボス２４３が設けられていない位置において、ＬＥＤ基板２２をバックキャビネット２４に取り付けてもよい。 The bosses 243 may be provided directly below the LED substrate 22 over the entire length of the LED substrate 22, but at several places (for example, both end portions and the central portion in the longitudinal direction Y of the LED substrate 22) of the LED substrate 22. It may be provided only directly below. This also has the same effect. Further, the LED substrate 22 may be attached to the back cabinet 24 at a position where the boss 243 is not provided.
　また、ボス２４３が、ヒートスプレッダ２３を固定するための機構は爪２４４に限定されず、爪２４４の替わりに、他の構成を用いてもよい。 Further, the mechanism for fixing the heat spreader 23 by the boss 243 is not limited to the claw 244, and another configuration may be used instead of the claw 244.
　続いて、本実施形態におけるバックキャビネット２４に対するＬＥＤ基板２２およびヒートスプレッダ２３の取り付け方法について、図５、図６および図７を参照して詳細に説明する。以下では、説明の簡略化のために、ボス２４３を省略して説明する。図５は、本実施形態におけるバックキャビネット２４に対するＬＥＤ基板２２およびヒートスプレッダ２３の取り付け方法を示す斜視図である。図６は、バックキャビネット２４におけるＬＥＤ基板２２およびヒートスプレッダ２３のための機構を示す斜視図である。図７は、バックキャビネット２４におけるＬＥＤ基板２２およびヒートスプレッダ２３のための機構およびヒートスプレッダ２３を示す斜視図である。なお、図７では、説明の簡略化のために、ＬＥＤ基板２２を省略している。 Subsequently, a method for attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 in the present embodiment will be described in detail with reference to FIGS. 5, 6, and 7. In the following description, the boss 243 is omitted to simplify the description. FIG. 5 is a perspective view showing a method for attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 in the present embodiment. FIG. 6 is a perspective view showing a mechanism for the LED substrate 22 and the heat spreader 23 in the back cabinet 24. FIG. 7 is a perspective view showing a mechanism for the LED substrate 22 and the heat spreader 23 and the heat spreader 23 in the back cabinet 24. In FIG. 7, the LED substrate 22 is omitted for simplification of description.
　図６に示すように、バックキャビネット２４には、爪２４４がレールのように形成されている。そして、図７に示すように、爪２４４に側面部２３ｂおよび２３ｃの先端が引っ掛かるように、ヒートスプレッダ２３を爪２４４と爪２４４との間に挿入し、爪２４４の形成方向に沿ってスライドさせることにより、図５に示すように、ヒートスプレッダ２３をバックキャビネット２４に取り付けることができる。 As shown in FIG. 6, the back cabinet 24 has claws 244 formed like rails. Then, as shown in FIG. 7, the heat spreader 23 is inserted between the claw 244 and the claw 244 so that the tips of the side surfaces 23 b and 23 c are caught on the claw 244, and is slid along the forming direction of the claw 244. Thus, the heat spreader 23 can be attached to the back cabinet 24 as shown in FIG.
　なお、バックキャビネット２４には、ヒートスプレッダ２３を所定の位置までスライドさせたときに、ヒートスプレッダ２３を固定するような構造が設けられていることが好ましい。例えば、ＬＥＤ基板２２またはヒートスプレッダ２３に切り欠きが設けられており、バックキャビネット２４に、ヒートスプレッダ２３を所定の位置までスライドさせたときに、当該切り欠きに嵌合するような突起が設けられていてもよい。 The back cabinet 24 is preferably provided with a structure for fixing the heat spreader 23 when the heat spreader 23 is slid to a predetermined position. For example, the LED board 22 or the heat spreader 23 is provided with a notch, and the back cabinet 24 is provided with a protrusion that fits into the notch when the heat spreader 23 is slid to a predetermined position. Also good.
　なお、上述したバックキャビネット２４に対するＬＥＤ基板２２およびヒートスプレッダ２３の取り付け方法は一例であり、ＬＥＤ基板２２をバックキャビネット２４に固定することができる態様である限り、適宜変更することができる。 The above-described method of attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 is an example, and can be changed as appropriate as long as the LED substrate 22 can be fixed to the back cabinet 24.
　表示装置１は、その他、図示しないデコシート、ランプ、リモコン回路、ホルダ、ボトムブラケット、サポートブラケット、メイン回路、電源回路、スタンド、補助回路、ボタン、スピーカ、トップカバー、ボトムカバー等を備えていてもよい。 The display device 1 may include a deco sheet, a lamp, a remote control circuit, a holder, a bottom bracket, a support bracket, a main circuit, a power circuit, a stand, an auxiliary circuit, a button, a speaker, a top cover, a bottom cover, and the like (not shown). .
　〔実施形態２〕
　本発明の他の実施形態（実施形態２）について説明すれば、以下のとおりである。なお、実施形態２は、実施形態１と、ヒートスプレッダ２３の構造およびバックキャビネット２４におけるヒートスプレッダ２３の固定のための構造が異なっている。以下では、実施形態１と異なる部分についてのみ説明し、実施形態１と同様の部分については説明を省略する。 [Embodiment 2]
Another embodiment (Embodiment 2) of the present invention will be described as follows. The second embodiment is different from the first embodiment in the structure of the heat spreader 23 and the structure for fixing the heat spreader 23 in the back cabinet 24. Below, only a different part from Embodiment 1 is demonstrated, and description is abbreviate | omitted about the part similar to Embodiment 1. FIG.
　図８は、本実施形態におけるＬＥＤ基板２２およびＬＥＤ基板２２に結合されたヒートスプレッダ２３の概略構造を示す斜視図である。図８に示すように、本実施形態に係るヒートスプレッダ２３は、一方の側面部（側面部２３ｂ）の方が、他方の側面部（側面部２３ｃ）よりも、短手方向Ｚの長さが長くなっており、長手方向Ｙと垂直な断面が略「Ｊ」の字状（いわゆる「つの字状」）である。 FIG. 8 is a perspective view showing a schematic structure of the LED substrate 22 and the heat spreader 23 coupled to the LED substrate 22 in the present embodiment. As shown in FIG. 8, in the heat spreader 23 according to the present embodiment, one side surface portion (side surface portion 23b) is longer in the short side direction Z than the other side surface portion (side surface portion 23c). The cross section perpendicular to the longitudinal direction Y has a substantially “J” shape (so-called “two-letter shape”).
　また、側面部２３ｃの先端（短手方向Ｚにおける底面部２３ａとは反対側の端部）には、後述するバックキャビネット２４に設けられた爪２４１に固定されるための鉤構造が形成されている。 Further, a hook structure for fixing to a claw 241 provided on the back cabinet 24 described later is formed at the tip of the side surface portion 23c (the end portion on the opposite side to the bottom surface portion 23a in the short side direction Z). Yes.
　図９は、本実施形態におけるバックキャビネット２４に対するＬＥＤ基板２２の配置位置を示す断面図であり、液晶パネル１５の短手方向に垂直な断面を示す。ＬＥＤ基板２２は、液晶パネル１５の裏面（バックキャビネット２４側の面）に沿うように配置されている。 FIG. 9 is a cross-sectional view showing an arrangement position of the LED substrate 22 with respect to the back cabinet 24 in the present embodiment, and shows a cross section perpendicular to the short direction of the liquid crystal panel 15. The LED substrate 22 is disposed along the back surface (the surface on the back cabinet 24 side) of the liquid crystal panel 15.
　このように、本実施形態においても、複数のＬＥＤ基板２２が、各ＬＥＤ基板２２の長手方向Ｙが液晶パネル１５の短手方向に向いた状態で、液晶パネル１５の裏面に沿うように液晶パネル１５の長手方向に並設されている。複数のＬＥＤ基板２２を、各ＬＥＤ基板２２の長手方向Ｙが液晶パネル１５の短手方向に向いた状態で、液晶パネル１５の長手方向に並設することにより、液晶パネル１５にバックライトを照射するための平面光源を好適に構成することができる。特に、ＬＥＤ基板２２を液晶パネル１５の裏面に沿うように配置されているため、液晶パネル１５に対して、均一にバックライトを照射することができる。そして、ＬＥＤ基板２２の長手方向Ｙが、液晶パネル１５の湾曲方向（弧）に対して直交する方向を向いているため、ＬＥＤ基板２２を液晶パネル１５の裏面に沿うように配置したとしても、ＬＥＤ基板２２を、湾曲させる必要が無い。ゆえに、ＬＥＤ基板２２にストレスが掛かることがなく、ＬＥＤ基板２２を湾曲させるための加工コストも必要ない。 As described above, also in this embodiment, the plurality of LED substrates 22 are arranged so that the liquid crystal panel 15 extends along the back surface of the liquid crystal panel 15 in a state where the longitudinal direction Y of each LED substrate 22 faces the short direction of the liquid crystal panel 15. 15 are arranged in parallel in the longitudinal direction. By arranging a plurality of LED substrates 22 in parallel in the longitudinal direction of the liquid crystal panel 15 with the longitudinal direction Y of each LED substrate 22 facing the lateral direction of the liquid crystal panel 15, the backlight is applied to the liquid crystal panel 15. Therefore, it is possible to suitably configure a planar light source. In particular, since the LED substrate 22 is disposed along the back surface of the liquid crystal panel 15, the backlight can be uniformly irradiated to the liquid crystal panel 15. And since the longitudinal direction Y of the LED substrate 22 faces the direction orthogonal to the bending direction (arc) of the liquid crystal panel 15, even if the LED substrate 22 is arranged along the back surface of the liquid crystal panel 15, The LED substrate 22 does not need to be curved. Therefore, the LED substrate 22 is not stressed, and the processing cost for bending the LED substrate 22 is not necessary.
　ここで、本実施形態では、各ＬＥＤ基板２２を、液晶パネル１５の裏面（バックキャビネット２４側の面）に沿うように配置するために、図９に示すように、バックキャビネット２４に爪２４１およびスリット（溝部）２４２を設けている。 Here, in this embodiment, in order to arrange each LED board 22 along the back surface of the liquid crystal panel 15 (the surface on the back cabinet 24 side), as shown in FIG. A slit (groove) 242 is provided.
　爪２４１によって、ヒートスプレッダ２３の側面部２３ｃの先端を固定することができる。また、スリット２４２には、ヒートスプレッダ２３の側面部２３ｂが挿入され、側面部２３ｂが固定される。ここで、スリット２４２の深さを調整することにより、ＬＥＤ基板２２の高さ（バックキャビネット２４の底面からの距離）を調整することができる。また、合わせて爪２４１の高さを調整すれば、ＬＥＤ基板２２の高さおよび傾きをより厳密に調整することができる。 The tip of the side surface portion 23c of the heat spreader 23 can be fixed by the claw 241. Moreover, the side part 23b of the heat spreader 23 is inserted in the slit 242, and the side part 23b is fixed. Here, by adjusting the depth of the slit 242, the height of the LED substrate 22 (distance from the bottom surface of the back cabinet 24) can be adjusted. Moreover, if the height of the nail | claw 241 is adjusted collectively, the height and inclination of the LED board 22 can be adjusted more strictly.
　このように、側面部２３ｂの方が側面部２３ｃよりも短手方向Ｚの幅が長くなっているヒートスプレッダ２３を用いる場合、バックキャビネット２４に、側面部２３ｂを挿入し、ＬＥＤ基板２２の高さを調整するためのスリット２４２を形成することにより、バックキャビネット２４の底面に対するＬＥＤ基板２２の高さを容易に調整することができる。これにより、ＬＥＤ基板２２を、より容易に、図９に示すように、液晶パネル１５の裏面に沿うように配置することができる。 Thus, when using the heat spreader 23 in which the width of the lateral direction Z is longer in the lateral direction 23b than in the lateral direction 23c, the lateral side 23b is inserted into the back cabinet 24 and the height of the LED substrate 22 is increased. By forming the slits 242 for adjusting the height, the height of the LED substrate 22 relative to the bottom surface of the back cabinet 24 can be easily adjusted. Thereby, the LED board 22 can be arrange | positioned along the back surface of the liquid crystal panel 15 more easily as shown in FIG.
　各スリット２４２の深さは、ＬＥＤ基板２２を液晶パネル１５の裏面に沿うように配置するように調整されていればよく、例えば、バックキャビネット２４を正面から見たときの左右方向の中心から離れた位置にあるスリット２４２程、深さが浅くなるように調整することができる。 The depth of each slit 242 should just be adjusted so that LED board 22 may be arranged so that the back of liquid crystal panel 15 may be met, for example, it is separated from the center of the horizontal direction when back cabinet 24 is seen from the front. The slit 242 located at a different position can be adjusted to be shallower.
　また、爪２４１の高さを調整することにより、図９に示すように、液晶パネル１５の裏面に沿うようにＬＥＤ基板２２の傾きが調整されていることが好ましい。 Further, it is preferable that the inclination of the LED substrate 22 is adjusted along the back surface of the liquid crystal panel 15 by adjusting the height of the claw 241 as shown in FIG.
　なお、スリット２４２は、ＬＥＤ基板２２の全長に亘って、ＬＥＤ基板２２の直下に設けられていることが好ましい。一方、爪２４１については、ＬＥＤ基板２２の数カ所（例えば、ＬＥＤ基板２２の長手方向Ｙの両端部および中央部）の直下のみに設けてもよい。これによっても、同等の効果を奏することができる。 The slit 242 is preferably provided directly below the LED substrate 22 over the entire length of the LED substrate 22. On the other hand, the claw 241 may be provided only directly below several places of the LED substrate 22 (for example, both ends and the central portion in the longitudinal direction Y of the LED substrate 22). This also has the same effect.
　また、バックキャビネット２４が、側面部２３ｃを固定するための機構は爪２４１に限定されず、爪２４１の替わりに、他の構成を用いてもよい。 Further, the mechanism for the back cabinet 24 to fix the side surface portion 23 c is not limited to the claw 241, and another configuration may be used instead of the claw 241.
　続いて、本実施形態におけるバックキャビネット２４に対するＬＥＤ基板２２およびヒートスプレッダ２３の取り付け方法について、図１０、図１１および図１２を参照して詳細に説明する。図１０は、本実施形態におけるバックキャビネット２４に対するＬＥＤ基板２２およびヒートスプレッダ２３の取り付け方法を示す斜視図である。図１１は、バックキャビネット２４におけるＬＥＤ基板２２およびヒートスプレッダ２３の取り付けのための機構を示す斜視図である。図１２は、バックキャビネット２４におけるＬＥＤ基板２２およびヒートスプレッダ２３の取り付けのための機構およびヒートスプレッダ２３を示す斜視図である。なお、図１２では、説明の簡略化のために、ＬＥＤ基板２２を省略している。 Subsequently, a method for attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 in the present embodiment will be described in detail with reference to FIGS. 10, 11, and 12. FIG. 10 is a perspective view showing a method for attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 in the present embodiment. FIG. 11 is a perspective view showing a mechanism for attaching the LED board 22 and the heat spreader 23 in the back cabinet 24. FIG. 12 is a perspective view showing a mechanism for attaching the LED substrate 22 and the heat spreader 23 and the heat spreader 23 in the back cabinet 24. In FIG. 12, the LED substrate 22 is omitted for simplification of description.
　図１１に示すように、バックキャビネット２４には、爪２４１およびスリット２４２が互いに沿うように形成されている。そして、図１２に示すように、スリット２４２に側面部２３ｂが挿入され、爪２４１に側面部２３ｃの先端が引っ掛かるように、爪２４１およびスリット２４２にヒートスプレッダ２３を挿入し、爪２４１およびスリット２４２の形成方向に沿ってスライドさせることにより、図１０に示すように、ヒートスプレッダ２３をバックキャビネット２４に取り付けることができる。 As shown in FIG. 11, the back cabinet 24 is formed with claws 241 and slits 242 along each other. Then, as shown in FIG. 12, the heat spreader 23 is inserted into the claw 241 and the slit 242 so that the side surface portion 23 b is inserted into the slit 242 and the tip of the side surface portion 23 c is caught by the claw 241. By sliding along the forming direction, the heat spreader 23 can be attached to the back cabinet 24 as shown in FIG.
　なお、バックキャビネット２４には、ヒートスプレッダ２３を所定の位置までスライドさせたときに、ヒートスプレッダ２３を固定するような構造が設けられていることが好ましい。例えば、ＬＥＤ基板２２またはヒートスプレッダ２３に切り欠きが設けられており、バックキャビネット２４に、ヒートスプレッダ２３を所定の位置までスライドさせたときに、当該切り欠きに嵌合するような突起が設けられていてもよい。 The back cabinet 24 is preferably provided with a structure for fixing the heat spreader 23 when the heat spreader 23 is slid to a predetermined position. For example, the LED board 22 or the heat spreader 23 is provided with a notch, and the back cabinet 24 is provided with a protrusion that fits into the notch when the heat spreader 23 is slid to a predetermined position. Also good.
　なお、上述したバックキャビネット２４に対するＬＥＤ基板２２およびヒートスプレッダ２３の取り付け方法は一例であり、ＬＥＤ基板２２をバックキャビネット２４に固定することができる態様である限り、適宜変更することができる。 The above-described method of attaching the LED substrate 22 and the heat spreader 23 to the back cabinet 24 is an example, and can be changed as appropriate as long as the LED substrate 22 can be fixed to the back cabinet 24.
　〔実施形態３〕
　本発明の他の実施形態（実施形態３）について説明すれば、以下のとおりである。 [Embodiment 3]
Another embodiment (Embodiment 3) of the present invention will be described as follows.
　実施形態１および実施形態２では、バックキャビネット２４（の液晶パネル１５側の面）は、平面状であったが、バックキャビネット２４（の液晶パネル１５側の面）は、弧を描くように湾曲しており、当該弧は液晶パネル１５の短手方向に直交していてもよい。このような構成においても、複数のＬＥＤ基板２２を、各ＬＥＤ基板２２の長手方向Ｙが液晶パネル１５の短手方向に向いた状態で、液晶パネル１５の裏面に沿うように液晶パネル１５の長手方向に並設することが好ましい。これにより、ＬＥＤ基板２２の長手方向Ｙが、バックキャビネット２４の湾曲方向に対して直交する方向を向いているため、ＬＥＤ基板２２を、湾曲させることなく、バックキャビネット２４に取り付けることができるからである。また、ＬＥＤ基板２２を液晶パネル１５の裏面に沿うように配置することにより、液晶パネル１５に対して、均一にバックライトを照射することができる。ＬＥＤ基板２２のバックキャビネット２４への取り付け方法およびＬＥＤ基板２２の高さの調整方法は、例えば、実施形態１または実施形態２と同様に行うことができる。 In the first and second embodiments, the back cabinet 24 (the surface on the liquid crystal panel 15 side) is flat, but the back cabinet 24 (the surface on the liquid crystal panel 15 side) is curved to draw an arc. The arc may be orthogonal to the short direction of the liquid crystal panel 15. Even in such a configuration, the plurality of LED substrates 22 are arranged so that the longitudinal direction of the liquid crystal panel 15 extends along the back surface of the liquid crystal panel 15 with the longitudinal direction Y of each LED substrate 22 facing the short direction of the liquid crystal panel 15. It is preferable to arrange in parallel. Thereby, since the longitudinal direction Y of the LED board 22 faces the direction orthogonal to the bending direction of the back cabinet 24, the LED board 22 can be attached to the back cabinet 24 without being bent. is there. Further, by disposing the LED substrate 22 along the back surface of the liquid crystal panel 15, the backlight can be uniformly applied to the liquid crystal panel 15. The method for attaching the LED substrate 22 to the back cabinet 24 and the method for adjusting the height of the LED substrate 22 can be performed in the same manner as in the first or second embodiment, for example.
　以上のように、本発明は、液晶パネル１５およびバックキャビネット２４のうちの一方が、弧を描くように湾曲しており、当該弧は液晶パネル１５の短手方向に直交している場合に好適に適用することができる。 As described above, the present invention is suitable when one of the liquid crystal panel 15 and the back cabinet 24 is curved so as to draw an arc, and the arc is orthogonal to the lateral direction of the liquid crystal panel 15. Can be applied to.
　〔まとめ〕
　本発明の態様１に係る表示装置（１）は、表示パネル（液晶パネル１５）と、バックキャビネット（２４）と、該バックキャビネットの該表示パネル側の面に取り付けられている複数の光源基板（ＬＥＤ基板２２）と、を備え、該表示パネルおよび該バックキャビネットのうちの一方は、弧を描くように湾曲しており、該弧は、該表示パネルの短手方向に直交しており、各光源基板には、当該光源基板の長手方向（Ｙ）に沿って複数の光源（ＬＥＤ素子２２０）が配列されおり、該複数の光源基板は、各光源基板の長手方向が該表示パネルの短手方向に向いた状態で、該表示パネルの裏面に沿うように該表示パネルの長手方向に並設されている。 [Summary]
A display device (1) according to an aspect 1 of the present invention includes a display panel (liquid crystal panel 15), a back cabinet (24), and a plurality of light source substrates attached to the surface of the back cabinet on the display panel side ( LED substrate 22), and one of the display panel and the back cabinet is curved to form an arc, and the arc is orthogonal to the lateral direction of the display panel, On the light source substrate, a plurality of light sources (LED elements 220) are arranged along the longitudinal direction (Y) of the light source substrate, and the plurality of light source substrates are arranged such that the longitudinal direction of each light source substrate is shorter than the display panel. The display panel is arranged in parallel in the longitudinal direction of the display panel so as to be along the back surface of the display panel.
　上記の構成によれば、光源基板の長手方向が、湾曲方向に対して直交する方向を向いているため、光源基板を、湾曲させることなく、バックキャビネットに取り付けることができると共に、表示パネルの裏面に沿うように配置することができる。 According to said structure, since the longitudinal direction of a light source substrate has faced the direction orthogonal to a curve direction, while being able to attach a light source substrate to a back cabinet, without curving, the back surface of a display panel It can arrange so that.
　本発明の態様２に係る表示装置は、上記態様１において、各光源基板の上記バックキャビネット側の面には、放熱板（ヒートスプレッダ２３）がそれぞれ結合しており、各光源基板は、該放熱板を介して上記バックキャビネットに取り付けられていてもよい。 The display device according to aspect 2 of the present invention is the display apparatus according to aspect 1, in which a heat sink (heat spreader 23) is coupled to the surface of each light source substrate on the back cabinet side, and each light source substrate is connected to the heat sink. It may be attached to the back cabinet via.
　上記の構成によれば、光源基板が放熱板を介してバックキャビネットに取り付けられるため、少ない部品点数およびコストで、光源基板の放熱と、光源基板のバックキャビネットへの取り付けとを実現することができる。 According to said structure, since a light source board is attached to a back cabinet via a heat sink, heat dissipation of a light source board and attachment to the back cabinet of a light source board are realizable with few components and cost. .
　本発明の態様３に係る表示装置は、上記態様２において、上記放熱板は、上記光源基板に結合する底面部（２３ａ）と、該底面部の短手方向（Ｘ）の少なくとも一方の端部から上記バックキャビネット側に折れ曲がっている側面部（２３ｂ、２３ｃ）とを備えていてもよい。 The display device according to aspect 3 of the present invention is the display apparatus according to aspect 2, wherein the heat dissipation plate includes a bottom surface portion (23a) coupled to the light source substrate and at least one end portion in the short-side direction (X) of the bottom surface portion. Side surfaces (23b, 23c) bent to the back cabinet side.
　上記の構成によれば、放熱板が、底面部と、底面部の短手方向の少なくとも一方の端部から折れ曲がる側面部とからなる構造を有することにより、（ｉ）放熱板の表面積を広くして、放熱板に結合された光源基板の放熱効率を向上することができると共に、（ｉｉ）放熱板の剛性を高めて、放熱板に結合された光源基板の反りを簡易な構成で抑制することができる。 According to said structure, a heat sink has a structure which consists of a bottom face part and the side part which bends from at least one edge part of the transversal direction of a bottom face part, (i) The surface area of a heat sink is enlarged. In addition, the heat dissipation efficiency of the light source board coupled to the heat sink can be improved, and (ii) the rigidity of the heat sink can be increased and the warp of the light source board coupled to the heat sink can be suppressed with a simple configuration. Can do.
　本発明の態様４に係る表示装置は、上記態様３において、上記側面部は、上記底面部の短手方向の両端から上記バックキャビネット側に折れ曲がっている一対の側面部であり、該一対の側面部は、短手方向（Ｚ）の幅が互いに同一であり、上記バックキャビネットには、該一対の側面部を固定すると共に、上記バックキャビネットの底面に対する上記光源基板の高さを調整するための突起部（ボス２４３）が形成されているものであってもよい。 The display device according to aspect 4 of the present invention is the display apparatus according to aspect 3, wherein the side surface portions are a pair of side surface portions that are bent from both ends of the bottom surface in the short direction toward the back cabinet, and the pair of side surfaces. The sections have the same width in the lateral direction (Z), and the pair of side surface portions are fixed to the back cabinet, and the height of the light source substrate with respect to the bottom surface of the back cabinet is adjusted. A protrusion (boss 243) may be formed.
　上記の構成によれば、短手方向の幅が互いに同一である側面部を有する放熱板を、バックキャビネットの突起部に固定することにより、バックキャビネットの底面に対する光源基板の高さを容易に調整することができる。これにより、光源基板を、より容易に、表示パネルの裏面に沿うように配置することができる。 According to said structure, the height of the light source board with respect to the bottom face of a back cabinet is easily adjusted by fixing the heat sink which has a side part whose width of a transversal direction is mutually the same to the protrusion part of a back cabinet. can do. Thereby, a light source board | substrate can be arrange | positioned along a back surface of a display panel more easily.
　本発明の態様５に係る表示装置は、上記態様３において、上記側面部は、上記底面部の短手方向の両端から上記バックキャビネット側に折れ曲がっている一対の側面部であり、該一対の側面部のうち、一方の側面部の方が、他方の側面部よりも、短手方向の幅が長くなっており、上記バックキャビネットには、上記一方の側面部が挿入されると共に、上記バックキャビネットの底面に対する上記光源基板の高さを調整するための溝部（スリット２４２）が形成されているものであってもよい。 The display device according to Aspect 5 of the present invention is the display device according to Aspect 3, wherein the side surface portions are a pair of side surface portions bent from both ends in the short direction of the bottom surface portion to the back cabinet side. Of the parts, one side part has a shorter width in the lateral direction than the other side part, and the one side part is inserted into the back cabinet, and the back cabinet The groove part (slit 242) for adjusting the height of the said light source substrate with respect to the bottom face may be formed.
　上記の構成によれば、放熱板における、短手方向の幅が長い方の側面部を、バックキャビネットの溝部に挿入することにより、バックキャビネットの底面に対する光源基板の高さを容易に調整することができる。これにより、光源基板を、より容易に、表示パネルの裏面に沿うように配置することができる。 According to said structure, the height of the light source board with respect to the bottom face of a back cabinet can be easily adjusted by inserting the side part with the long width | variety of a transversal direction in a heat sink at the groove part of a back cabinet. Can do. Thereby, a light source board | substrate can be arrange | positioned along a back surface of a display panel more easily.
　本発明の態様６に係る表示装置は、上記態様２～５において、上記放熱板は、互いに同一形状の放熱板であってもよい。 In the display device according to aspect 6 of the present invention, in the above aspects 2 to 5, the heat sinks may be heat sinks having the same shape.
　上記の構成によれば、各光源基板に結合される放熱板の形状が互いに同一であることにより、よりコストを低減することができる。 According to the above configuration, since the shapes of the heat sinks coupled to the respective light source substrates are the same, the cost can be further reduced.
　本発明の態様７に係るテレビジョン受像機は、態様１～６の何れかの表示装置を備えている。 A television receiver according to aspect 7 of the present invention includes the display device according to any one of aspects 1 to 6.
　上記の構成によれば、テレビジョン受像機において、態様１～６の何れかと同等の効果を奏する。 According to the above configuration, the television receiver has the same effect as any one of the first to sixth aspects.
　本発明は上述した各実施形態に限定されるものではなく、請求項に示した範囲で種々の変更が可能であり、異なる実施形態にそれぞれ開示された技術的手段を適宜組み合わせて得られる実施形態についても本発明の技術的範囲に含まれる。 The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.
　本発明は、テレビジョン受像機を含む表示装置一般に利用することができる。 The present invention can be used generally for display devices including television receivers.
　１　　　　表示装置
　１０　　　フロントキャビネット
　１５　　　液晶パネル（表示パネル）
　２２　　　ＬＥＤ基板（光源基板）
　２２０　　ＬＥＤ素子（光源）
　２３　　　ヒートスプレッダ（放熱板）
　２３ａ　　底面部
　２３ｂ　　側面部
　２３ｃ　　側面部
　２４　　　バックキャビネット
　２４１　　爪
　２４２　　スリット（溝部）
　２４３　　ボス（突起部）
　２４４　　爪 1 Display device 10 Front cabinet 15 Liquid crystal panel (display panel)
22 LED board (light source board)
220 LED element (light source)
23 Heat spreader (heat sink)
23a Bottom part 23b Side part 23c Side part 24 Back cabinet 241 Claw 242 Slit (groove part)
243 Boss (projection)
244 nails

Claims (7)

  1. 　表示パネルと、
    　バックキャビネットと、
    　該バックキャビネットの該表示パネル側の面に取り付けられている複数の光源基板と、を備え、
    　該表示パネルおよび該バックキャビネットのうちの少なくとも一方は、弧を描くように湾曲しており、
    　該弧は、該表示パネルの短手方向に直交しており、
    　各光源基板には、当該光源基板の長手方向に沿って複数の光源が配列されおり、
    　該複数の光源基板は、各光源基板の長手方向が該表示パネルの短手方向に向いた状態で、該表示パネルの該バックキャビネット側の面に沿うように該表示パネルの長手方向に並設されていることを特徴とする表示装置。     A display panel;
    Back cabinet,
    A plurality of light source boards attached to the display panel side surface of the back cabinet,
    At least one of the display panel and the back cabinet is curved to draw an arc,
    The arc is orthogonal to the short direction of the display panel;
    In each light source substrate, a plurality of light sources are arranged along the longitudinal direction of the light source substrate,
    The plurality of light source substrates are arranged in parallel in the longitudinal direction of the display panel so as to be along the surface of the display panel on the back cabinet side in a state where the longitudinal direction of each light source substrate is oriented in the short direction of the display panel. A display device characterized by being made.
  2. 　各光源基板の上記バックキャビネット側の面には、放熱板がそれぞれ結合しており、
    　各光源基板は、該放熱板を介して上記バックキャビネットに取り付けられていることを特徴とする請求項１に記載の表示装置。     A heat sink is coupled to the surface of each light source board on the back cabinet side,
    The display device according to claim 1, wherein each light source substrate is attached to the back cabinet via the heat radiating plate.
  3. 　上記放熱板は、上記光源基板に結合する底面部と、該底面部の短手方向の少なくとも一方の端部から上記バックキャビネット側に折れ曲がっている側面部とを備えていることを特徴とする請求項２に記載の表示装置。 The heat radiating plate includes a bottom surface portion coupled to the light source substrate, and a side surface portion bent toward the back cabinet from at least one end portion in a short direction of the bottom surface portion. Item 3. The display device according to Item 2.
  4. 　上記側面部は、上記底面部の短手方向の両端から上記バックキャビネット側に折れ曲がっている一対の側面部であり、
    　該一対の側面部は、短手方向の幅が互いに同一であり、
    　上記バックキャビネットには、上記一対の側面部を固定すると共に、上記バックキャビネットの底面に対する上記光源基板の高さを調整するための突起部が形成されていることを特徴とする請求項３に記載の表示装置。     The side surface portions are a pair of side surface portions that are bent from both ends in the short direction of the bottom surface portion to the back cabinet side,
    The pair of side surfaces have the same width in the short direction,
    The protrusions for adjusting the height of the light source substrate with respect to the bottom surface of the back cabinet are formed on the back cabinet, and the pair of side surface portions are fixed. Display device.
  5. 　上記側面部は、上記底面部の短手方向の両端から上記バックキャビネット側に折れ曲がっている一対の側面部であり、
    　該一対の側面部のうち、一方の側面部の方が、他方の側面部よりも、短手方向の幅が長くなっており、
    　上記バックキャビネットには、上記一方の側面部が挿入されると共に、上記バックキャビネットの底面に対する上記光源基板の高さを調整するための溝部が形成されていることを特徴とする請求項３に記載の表示装置。     The side surface portions are a pair of side surface portions that are bent from both ends in the short direction of the bottom surface portion to the back cabinet side,
    Of the pair of side portions, one side portion has a shorter width in the short side direction than the other side portion,
    The said back cabinet has the said one side part inserted, and the groove part for adjusting the height of the said light source board | substrate with respect to the bottom face of the said back cabinet is formed. Display device.
  6. 　上記放熱板は、互いに同一形状の放熱板であることを特徴とする請求項２～５の何れか一項に記載の表示装置。 The display device according to any one of claims 2 to 5, wherein the heat radiating plates are heat radiating plates having the same shape.
  7. 　請求項１～６の何れか一項に記載の表示装置を備えていることを特徴とするテレビジョン受像機。 A television receiver comprising the display device according to any one of claims 1 to 6.
PCT/JP2015/071974 2014-09-26 2015-08-03 Display device and television receiver WO2016047275A1 (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2009063701A (en) * 2007-09-05 2009-03-26 Hitachi Displays Ltd Display device
WO2013031319A1 (en) * 2011-08-29 2013-03-07 パナソニック液晶ディスプレイ株式会社 Liquid-crystal display device and television receiver
JP2013242525A (en) * 2012-05-17 2013-12-05 Samsung Electronics Co Ltd Curved surface display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009063701A (en) * 2007-09-05 2009-03-26 Hitachi Displays Ltd Display device
WO2013031319A1 (en) * 2011-08-29 2013-03-07 パナソニック液晶ディスプレイ株式会社 Liquid-crystal display device and television receiver
JP2013242525A (en) * 2012-05-17 2013-12-05 Samsung Electronics Co Ltd Curved surface display device

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