WO2016047275A1 - Dispositif d'affichage et récepteur de télévision - Google Patents

Dispositif d'affichage et récepteur de télévision 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
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English (en)
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.)
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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/zh
Publication of WO2016047275A1 publication Critical patent/WO2016047275A1/fr

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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)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

　L'invention concerne un panneau à cristaux liquides (15) qui s'incurve de telle sorte qu'il décrit un arc, l'arc étant perpendiculaire par rapport à la direction allant dans le sens de la latitude du panneau à cristaux liquides (15). Des substrats de diodes électroluminescentes (22), orientés de telle sorte que la direction longitudinale des substrats de diodes électroluminescentes (22) se trouve dans la direction allant dans le sens de la latitude du panneau à cristaux liquides (15), sont disposés en réseau dans la direction allant dans le sens longitudinal du panneau à cristaux liquides (15), le long de la surface au niveau du côté de l'armoire arrière (24) du panneau à cristaux liquides (15).
PCT/JP2015/071974 2014-09-26 2015-08-03 Dispositif d'affichage et récepteur de télévision WO2016047275A1 (fr)

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JP2014-197534 2014-09-26
JP2014197534 2014-09-26

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110333627A (zh) * 2019-06-29 2019-10-15 厦门天马微电子有限公司 一种背光模组、制备方法和曲面显示面板

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009063701A (ja) * 2007-09-05 2009-03-26 Hitachi Displays Ltd 表示装置
WO2013031319A1 (fr) * 2011-08-29 2013-03-07 パナソニック液晶ディスプレイ株式会社 Dispositif d'affichage à cristaux liquides et récepteur de télévision
JP2013242525A (ja) * 2012-05-17 2013-12-05 Samsung Electronics Co Ltd 曲面ディスプレイ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009063701A (ja) * 2007-09-05 2009-03-26 Hitachi Displays Ltd 表示装置
WO2013031319A1 (fr) * 2011-08-29 2013-03-07 パナソニック液晶ディスプレイ株式会社 Dispositif d'affichage à cristaux liquides et récepteur de télévision
JP2013242525A (ja) * 2012-05-17 2013-12-05 Samsung Electronics Co Ltd 曲面ディスプレイ装置

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