WO2018043261A1 - Display device and television receiver - Google Patents

Display device and television receiver Download PDF

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Publication number
WO2018043261A1
WO2018043261A1 PCT/JP2017/030203 JP2017030203W WO2018043261A1 WO 2018043261 A1 WO2018043261 A1 WO 2018043261A1 JP 2017030203 W JP2017030203 W JP 2017030203W WO 2018043261 A1 WO2018043261 A1 WO 2018043261A1
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WO
WIPO (PCT)
Prior art keywords
display panel
display device
plate portion
display
plate
Prior art date
Application number
PCT/JP2017/030203
Other languages
French (fr)
Japanese (ja)
Inventor
友樹 天野
克史 前田
和也 廣田
剛 尾関
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
Priority claimed from JP2016173074A external-priority patent/JP6333906B2/en
Priority claimed from JP2016173073A external-priority patent/JP6333905B2/en
Priority claimed from JP2016173076A external-priority patent/JP6333907B2/en
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2018043261A1 publication Critical patent/WO2018043261A1/en

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Classifications

    • 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.
  • the liquid crystal display device includes a liquid crystal display panel that displays an image and a backlight that illuminates the liquid crystal display panel from the rear side.
  • a display device including an edge light type backlight in which a rear side of a liquid crystal display panel is covered with a plate-shaped light guide plate and illumination light is incident from an end face of the light guide plate Patent Document 1.
  • the light guide plate illuminates the liquid crystal display panel by uniformly radiating illumination light incident from the end face from the wide surface on the liquid crystal panel side. By the action of the backlight, the user can visually recognize the video displayed on the liquid crystal display panel.
  • the side surface of the light guide plate arranged on the rear side of the display panel is opposed to the illumination unit arranged along the edge of the display panel.
  • the positional relationship between the illuminating unit and the light guide plate is shifted, which may cause display unevenness.
  • An object of one aspect is to provide a display device and the like that can prevent display unevenness due to a shift in the positional relationship between an illumination unit and a light guide plate even when an external force is applied to the display panel.
  • the display device includes a rear plate portion disposed on the rear side of the display panel that displays an image on the front surface, a bottom plate portion that protrudes toward the display panel from an edge of the rear plate portion, and the rear plate portion.
  • the heat radiating plate having a holding portion that protrudes shorter than the bottom plate portion in the same direction as the bottom plate portion, and an illumination portion that is held by the holding portion of the heat radiating plate and illuminates the rear side of the display panel.
  • the rear plate portion has a thicker portion thicker than other portions on the side opposite to the bottom plate portion of the base end portion of the holding portion.
  • the rear plate portion has a thin portion thinner than other portions between the holding portion and the bottom plate portion.
  • the display device includes a light guide plate disposed on the rear surface of the display panel and having one end surface facing the illumination unit.
  • a display device accommodates a rectangular plate-like display unit having the display panel and the bottom plate unit, protrudes from one side of the display unit to the display surface side of the display panel, and moves together with the display unit to display L And a plate-like base portion forming a letter shape.
  • the display device includes a side housing that covers a first side and a third side that are side sides of the rectangular display panel, and a second side that is a top side, and the heat dissipation plate includes: The side plate portion that protrudes toward the display panel along the first side edge and the third side edge of the rear plate portion and is fixed to the inner surface of the side housing.
  • the display device is connected outwardly to an edge of the display panel and is bent toward the display surface side of the display panel, and is fixed to the flexible substrate and disposed in front of the display panel. And a heat transfer member disposed outside the edge of the display panel and contacting a back side of the integrated circuit or a portion of the flexible substrate to which the integrated circuit is fixed.
  • a television receiver includes the display device according to any one of the above and a receiving unit that receives a television broadcast, and based on the television broadcast received by the receiving unit, An image is displayed on the display device.
  • FIG. 6 is an enlarged vertical cross-sectional view of a central portion of the display device according to the second embodiment. 6 is a longitudinal sectional view of a central portion of a display device according to Embodiment 3. FIG. FIG. 6 is an enlarged vertical cross-sectional view of a central portion of a display device according to a fourth embodiment.
  • FIG. 1 is an external perspective view of a display device.
  • the display device 10 includes a substantially rectangular plate-like display unit 11 and a substantially rectangular plate-like base unit 20.
  • the display unit 11 includes a rectangular flat display panel 12. The upper and left and right edges of the display panel 12 are covered with a side housing 13 that is an exterior member of the display unit 11.
  • FIG. 2 is a side view of the display device 10.
  • the base part 20 protrudes forward from the lower side of the display part 11.
  • the base unit 20 does not protrude behind the display unit 11. That is, the display device 10 has a shape in which the display unit 11 and the base unit 20 are continuous in an L shape.
  • the upper surface of the base part 20 is a plane.
  • An inclined surface that is inclined rearward and downward is provided at the protruding end portion of the base portion 20 on the front surface side.
  • FIG. 3 is an exploded perspective view of the main part of the display device 10.
  • FIG. 4 is a longitudinal sectional view of the central portion of the display device 10. An outline of a main part of the display device 10 will be described with reference to FIGS. 3 and 4.
  • the display unit 11 includes a light guide plate 14, a heat radiating plate 31, and a rear case 16 in addition to the display panel 12 and the side case 13.
  • the light guide plate 14 is, for example, a highly transparent rectangular acrylic plate.
  • the wide surface of the light guide plate 14 has substantially the same shape as the wide surface of the display panel 12.
  • An optical sheet is provided on the wide surface of the light guide plate 14 on the display panel 12 side.
  • a reflection sheet is provided on the wide surface of the light guide plate 14 opposite to the display panel 12.
  • the heat sink 31 has a rear plate portion 32, a bottom plate portion 34, and a holding portion 35, each of which has a substantially rectangular plate shape.
  • the rear plate portion 32 covers the lower portion of the light guide plate 14 from the rear side.
  • the bottom plate portion 34 projects forward from the lower side of the rear plate portion 32.
  • the holding portion 35 slightly protrudes from the rear plate portion 32 forward and slightly shorter than the bottom plate portion 34 slightly above the bottom plate portion 34.
  • the lengths of the long sides of the rear plate portion 32, the bottom plate portion 34, and the holding portion 35 are substantially the same as the length of the lower side of the display unit 11.
  • the holding part 35 is parallel to the bottom plate part 34. That is, the bottom plate portion 34, the holding portion 35, and the rear plate portion 32 form a substantially F shape as shown in FIG.
  • the illumination board 15 is fixed to the upper surface of the holding part 35 so as to face the lower end face of the light guide plate 14.
  • the illumination board 15 is a long board-shaped circuit board having substantially the same length as the long side of the light guide plate 14.
  • a plurality of white LEDs (Light Emitting Diode) are mounted on the surface of the illumination substrate 15 facing the light guide plate 14.
  • the rear housing 16 is an exterior member that covers the rear surface of the display unit 11.
  • the rear housing 16 has a back plate portion 161 and a lower plate portion 162.
  • the back plate portion 161 has a rectangular plate shape that is substantially the same shape as the display panel 12.
  • the lower plate portion 162 has a rectangular plate shape that extends forward from the lower side of the back plate portion 161.
  • the rear housing 16 is manufactured by bending a rectangular thin steel plate or the like.
  • the side housing 13 is a substantially U-shaped frame that opens on the lower side, and has a front side edge 131 and a rear side edge 132 that protrude inward.
  • the rear edge 132 is shorter than the front edge 131.
  • the front edge 131 contacts the display panel 12 and the light guide plate 14.
  • the rear edge 132 abuts on the rear housing 16.
  • the side housing 13 is manufactured by bending a metal bar having a substantially U-shaped cross section in which a front edge 131 and a rear edge 132 are connected at one end.
  • the base unit 20 includes a decorative plate 25, an upper surface casing 26, a lower surface casing 21, and a first weight 51.
  • Two speakers 22, an input board 23, a control board 24, a first board base 41, a second board base 46, and a fourth weight 54 are accommodated between the upper case 26 and the lower case 21. .
  • the lower surface casing 21 includes a rectangular bottom portion 211 and an edge portion 212 that rises upward from the front edge of the bottom portion 211.
  • the lower case 21, the lower plate part 162 of the rear case 16, and the bottom plate part 34 of the heat radiating plate 31 are overlapped and fixed by the first screw 61 from the lower side.
  • the lower surface casing 21 and the bottom plate portion 34 of the heat radiating plate 31 further extend in the forward direction and are fixed by a second screw 62 from below.
  • a plurality of first screws 61 and second screws 62 are arranged along the left-right direction.
  • a rectangular plate-like fourth weight 54 is fixed on the bottom 211 at a position closer to the front from the center.
  • the fourth weight 54 is preferably made of a material having high thermal conductivity and high density, such as a copper alloy.
  • the second board base 46 is fixed on the fourth weight 54. Details of the shape of the second substrate base 46 will be described later. On the second board base 46, two speakers 22, an input board 23, a control board 24, a wiring member (not shown), and the like are arranged.
  • the upper case 26 covers the upper opening of the lower case 21.
  • the top housing 26 has a rectangular box-shaped box-like part 261 with the bottom facing upward, and an outer edge part 262 projecting forward and left and right from the edge of the box-like part 261.
  • a first weight 51 is fixed on the outer edge 262 on the front side.
  • the first weight 51 is a long plate having a length that extends over substantially the entire length of the base portion 20 in the left-right direction.
  • the first weight 51 and the box-shaped portion 261 are covered with a decorative plate 25 that is an exterior part.
  • FIG. 5 is a perspective view of the heat sink 31.
  • FIG. 6 is an enlarged perspective view of the heat radiating plate 31.
  • the heat radiating plate 31 has a rectangular plate-shaped side plate portion 33 that protrudes forward along the left and right short sides of the rear plate portion 32.
  • a fourth hole 74 is provided in the lower portion of the side plate portion 33.
  • the side plate portion 33 is provided with four fifth holes 75 at substantially equal intervals.
  • Female threads are provided on the inner surfaces of the fourth hole 74 and the fifth hole 75.
  • the functions of the third hole 73, the fourth hole 74, and the fifth hole 75 will be described later.
  • the number of the fifth holes 75 is not limited to four shown in FIG. An arbitrary number of fifth holes 75 can be provided according to the dimensions of the display device 10 and the like.
  • the bottom plate portion 34 includes a first hole 71 and a second hole 72 disposed on the front side of the first hole 71.
  • a plurality of first holes 71 and second holes 72 are arranged at predetermined intervals in the left-right direction.
  • Female threads are provided on the inner surfaces of the first hole 71 and the second hole 72.
  • the first screw 61 described using FIG. 4 is inserted into the first hole 71.
  • the second screw 62 described with reference to FIG. 4 is inserted into the second hole 72.
  • a third hole 73 is provided near the rear of the left and right ends of the bottom plate portion 34.
  • the third hole 73 is a round hole.
  • the rear plate portion 32 has a thick portion 37 that is thicker than other portions at a portion that contacts the upper side of the holding portion 35.
  • the heat radiating plate 31 is manufactured by cutting an extruded product of a metal with high thermal conductivity such as an aluminum alloy or a copper alloy having an F-shaped cross section, and bending the end portion to form the side plate portion 33.
  • a metal with high thermal conductivity such as an aluminum alloy or a copper alloy having an F-shaped cross section
  • FIG. 7 is a schematic diagram showing a state in which the side housing 13 and the heat radiating plate 31 are combined.
  • FIG. 7 is a schematic view seen from the rear side. A structure for ensuring the strength of the display unit 11 will be described with reference to FIGS. 3 to 7.
  • the rear edge 132 of the side casing 13 is removed at the lower part of the side casing 13, and the heat radiating plate 31 is fitted into that portion to form a rectangular frame.
  • the front side edge 131 is also removed at the lower end of the side housing 13.
  • the inner surface of the side housing 13 and the outer surface of the side plate portion 33 of the heat radiating plate 31 are in contact with each other.
  • the side housing 13 and the side plate portion 33 are fixed by a countersunk screw inserted into the fifth hole 75 from the outside of the side housing 13.
  • the display device 10 includes two reinforcing bodies 27 that reinforce the connection between the display unit 11 and the base unit 20.
  • the two reinforcing bodies 27 are symmetrical.
  • FIG. 8 is a perspective view of the reinforcing body 27.
  • FIG. 8 shows the right reinforcing body 27.
  • the reinforcing body 27 has a first plate portion 271, a second plate portion 272, and a third plate portion 273 that are each substantially rectangular.
  • the first plate portion 271 protrudes forward from the long side of the second plate portion 272.
  • the third plate portion 273 protrudes rearward from the short side of the second plate portion 272.
  • the first plate portion 271 has a screw hole at the center.
  • the 3rd board part 273 has a through-hole in the center part.
  • the reinforcing body 27 is manufactured by bending a substantially L-shaped steel plate at two locations.
  • the first plate part 271, the second plate part 272, and the third plate part 273 are substantially perpendicular to each other.
  • FIG. 9 is a perspective view of the inside of the display device 10.
  • FIG. 9 shows a state in which the display unit 11 and the lower surface casing 21 are assembled.
  • FIG. 10 is a cross-sectional view of the display device 10.
  • FIG. 10 shows a right end portion of a cross section of the display device 10 taken along line XX of FIG.
  • the structure of the right end portion of the display device 10 will be described as an example, but the left side of the display device 10 has the same structure.
  • the reinforcing body 27 is disposed on the lower right side of the display unit 11.
  • the first plate portion 271 is disposed on the bottom plate portion 34 of the heat radiating plate 31.
  • the third plate portion 273 is sandwiched between the inner surface of the lower surface housing 21 and the outer surface of the side surface housing 13.
  • the round hole provided in the central part of the third plate part 273 is provided at a position corresponding to the fourth hole 74 of the side plate part 33 described with reference to FIG.
  • the side housing 13 and the lower housing 21 are provided with round holes (not shown) at positions corresponding to the fourth holes 74.
  • the lower surface housing 21, the reinforcing body 27, the side surface housing 13, and the side plate portion 33 of the heat radiating plate 31 are fixed by a fourth screw 64 inserted from the outside of the lower surface housing 21.
  • the screw hole provided in the central portion of the first plate portion 271 is provided at a position corresponding to the third hole 73 of the bottom plate portion 34 described with reference to FIG.
  • the lower plate portion 162 of the rear housing 16 is also provided with a round hole (not shown) at a position corresponding to the third hole 73.
  • a countersink hole is provided at a position corresponding to the third hole 73 in the bottom portion 211 of the lower surface casing 21.
  • the lower surface housing 21, the rear surface housing 16, the heat radiating plate 31, and the reinforcing body 27 are fixed by a third screw 63 inserted from below.
  • the third screw 63 is a countersunk screw.
  • the display unit 11 and the base unit 20 are firmly fixed by using the reinforcing bodies 27 on the left and right.
  • FIG. 11 is an enlarged perspective view of the display panel 12.
  • a plurality of driver boards 17 are connected outward along the lower side of the display panel 12.
  • the driver substrate 17 is an example of a flexible substrate connected to the display panel 12.
  • the driver board 17 is rectangular, and one long side is connected to the display panel 12.
  • FPC Flexible printed ⁇ ⁇ circuits
  • a polyimide sheet and a metal wiring pattern are laminated is used.
  • a driver control board 19 is connected to the other long side of the driver board 17. As shown in FIG. 3, the driver control board 19 is a rectangular board having a long side that is about half the long side of the display panel 12.
  • the display device 10 includes two driver control boards 19. One driver control board 19 is connected to the display panel 12 via six driver boards 17.
  • a driver 18 is mounted on the rear surface of the driver board 17.
  • the driver 18 is disposed in front of the display surface of the display panel 12.
  • the driver 18 is an integrated circuit that outputs a drive signal for driving each pixel of the display panel 12 based on a signal input from the driver control board 19.
  • the driver 18 is an example of an integrated circuit disposed in the vicinity of the display panel 12.
  • the driver control board 19 is an example of an integrated circuit control board.
  • driver control boards 19 and driver boards 17 is not limited to that shown in FIG. Any number of driver control boards 19 and driver boards 17 according to specifications such as the number of pixels of the display panel 12 can be used. A plurality of drivers 18 may be mounted on one driver board 17.
  • FIG. 12 is an enlarged perspective view of the first substrate base 41.
  • the shape of the first substrate base 41 will be described with reference to FIGS. 3 and 12.
  • the first substrate base 41 has a two-step staircase plate portion 43 that is long in the left-right direction, and a substrate holding portion 42.
  • the board holding portion 42 is a J-shaped plate that extends in the forward direction from the center of the staircase plate 43 and extends upward and then turns back.
  • FIG. 13 is an enlarged perspective view of the second substrate base 46.
  • the shape of the second substrate base 46 will be described with reference to FIGS. 3 and 13.
  • the second substrate base 46 has a main substrate mounting portion 47 that extends forward at the center of the long side of the front side of the rectangular plate that is long in the left-right direction, and a speaker mounting that extends forward to the left and right of the main substrate mounting portion 47.
  • a placement part 48 is provided.
  • the second substrate base 46 has a heat transfer section 49 that rises obliquely upward and rearward from the long side of the rectangular plate that is long in the left-right direction.
  • the second substrate base 46 is an example of a heat transfer member of the present embodiment.
  • the second substrate base 46 is manufactured by bending a metal plate having high thermal conductivity such as an aluminum alloy or a copper alloy.
  • the second substrate base 46 may be manufactured by injection molding a high heat conductive resin such as nylon resin or polycarbonate resin of high heat conductive grade.
  • the first board base 41 is fixed to the upper part of the bottom plate part 34 of the heat radiating plate 31 with the board holding part 42 facing the front side.
  • the second substrate base 46 is fixed so that the heat transfer section 49 is located near the lower side of the lower side of the display panel 12.
  • the driver substrate 17 is bent forward in the base portion 20, that is, toward the display surface.
  • the end portion of the driver control board 19 is held by the board holding section 42 at the center of the display device 10.
  • the driver board 17 contacts the heat transfer section 49 on the back side of the part where the driver 18 is mounted.
  • the speaker 22 is fixed on the speaker mounting portion 48.
  • the input board 23, the control board 24, and the like are fixed. Furthermore, the wiring etc. which connect each board
  • the input board 23 is a board that receives a video signal input from the outside and performs predetermined signal processing.
  • the control board 24 is a board that receives a signal output from the input board 23 and outputs a signal for controlling the driver control board 19.
  • the control board 24 is an example of a control unit that controls the display panel 12.
  • the illumination board 15 is an example of the illumination unit of the present embodiment that illuminates the rear side of the display panel 12.
  • a light emitter such as an organic EL (ElectroLuminescence) element may be mounted on the illumination board 15 instead of the white LED.
  • the illumination unit may be a light emitter such as a cold cathode tube.
  • edge light type backlight instead of the edge light type backlight combining the light guide plate 14 and the illumination substrate 15, a so-called direct type backlight in which a large number of white LEDs and a diffusion sheet are arranged on the rear side of the display panel 12 is used. You may do it.
  • the control board 24 Based on the video signal input from the input board 23, the control board 24 connects a signal for controlling the driver control board 19. Based on the control of the driver control board 19, the driver 18 controls each pixel constituting the display panel 12. Thereby, each pixel which comprises the display panel 12 permeate
  • the heat dissipation of the display device 10 will be described.
  • the illumination board 15 and the driver 18 are components that generate a large amount of heat.
  • a structure for radiating heat generated from each component will be described.
  • the heat generated from the illumination board 15 is transmitted to the rear casing 16 and the lower casing 21 through the heat radiating plate 31.
  • the transmitted heat is further diffused from the rear casing 16 and the lower casing 21 to the upper casing 26, the side casing 13, and the floor, wall, and air around the display device 10.
  • the heat generated in the illumination board 15 is dissipated to the outside of the display device 10 and the illumination board 15 is prevented from being overheated.
  • the heat generated from the driver 18 is transmitted to the heat transfer section 49 via the driver board 17.
  • the transmitted heat is diffused throughout the second substrate base 46 and is transmitted to the lower surface casing 21 via the fourth weight 54 having excellent thermal conductivity, and is transmitted to the floor, wall, air, etc. around the display device 10.
  • Spread. As described above, the heat generated in the driver 18 is radiated to the outside of the display device 10 and the driver 18 is prevented from being overheated.
  • the display device 10 of the present embodiment is L-shaped, it can be installed so that the rear surface of the display unit 11 is in close contact with the wall surface.
  • the display apparatus 10 is installed in a place away from the wall surface.
  • the first weight 51 and the fourth weight 54 are fixed to the front side of the base portion 20. Due to these weights, the center of gravity of the display device 10 is located on the front side compared to the case where there is no weight. Therefore, even if a backward force is applied to the display unit 11, the display device 10 can be prevented from falling backward.
  • FIG. 14 is an explanatory diagram showing a simulation model.
  • FIG. 15 is an explanatory diagram showing a simulation model of a comparative example.
  • FIG. 14 shows a model for simulating deformation of the display device 10 of the present embodiment.
  • the heat radiating plate 31 includes seven first screws 61, seven second screws 62 (see FIG. 4), two third screws 63 (see FIG. 10), and two first screws 61. It is fixed to the lower case 21 by four screws 64 (see FIG. 10).
  • FIG. 15 shows a model for simulating the deformation of the display device 10 of the comparative example in which the illumination board 15 is fixed to the bottom plate portion 34.
  • the heat radiating plate 31 is fixed to the lower surface casing 21 by seven first screws 61, two third screws 63 and two fourth screws 64.
  • FIG. 16 is an explanatory diagram showing a simulation result of the present embodiment.
  • FIG. 17 is an explanatory diagram illustrating a simulation result of the comparative example. In either case, a deformation is simulated when a force of 100 Newton is applied backward to the center of the upper side of the display unit 11.
  • FIG. 16 shows a simulation result of deformation of the surface indicated by A in FIG. 14, that is, the front end surface of the holding portion 35.
  • FIG. 17 shows a simulation result of the deformation of the surface indicated by B in FIG. 16 and 17 show the deformation amount enlarged in the vertical direction at the same scale.
  • the holding portion 35 of the present embodiment is in a flat state even when force is applied. This is because the holding portion 35 is provided separately from the bottom plate portion 34 that fixes the heat radiating plate 31 and the lower surface casing 21, and therefore the influence of the portion fixed by the first screw 61 or the like is not easily transmitted to the holding portion 35.
  • the surface on which the illumination board 15 is placed is deformed so as to wave. This is because in the comparative example, the influence of the portion fixed by the first screw 61 or the like is directly transmitted to the surface on which the illumination board 15 is placed.
  • the rear plate portion 32 has the thick portion 37 that is thicker than the other portions in the portion that is in contact with the upper side of the holding portion 35, so that deformation is unlikely to occur in this portion. For this reason, deformation due to external force mainly occurs at a portion between the holding portion 35 and the bottom plate portion 34, and misalignment between components in the display portion 11 hardly occurs.
  • the display device 10 that can be installed so that the rear surface of the display unit 11 is in close contact with the wall surface. Furthermore, since the various substrates etc. which control the display panel 12 are arrange
  • the center of gravity is located in front of the display panel 12 by the first weight 51 and the fourth weight 54, it is possible to provide the display device 10 that is not easily toppled by an external force.
  • the holding portion 35 that holds the illumination substrate 15 is provided separately from the bottom plate portion 34 that is fixed to the lower surface casing 21, the image quality is deteriorated due to distortion or breakage of the illumination substrate 15 due to external force. Therefore, it is possible to provide the display device 10 that is less likely to cause the problem.
  • the display panel 12 and the conductive plate are guided even when receiving external force.
  • Thin members such as the optical plate 14 and the rear housing 16 can be prevented from being deformed or broken.
  • the heat radiating plate 31 also serves as a structural member, the display device 10 can be configured with a small number of components.
  • the holding portion 35 is provided separately from the bottom plate portion 34 that fixes the heat radiating plate 31 and the lower surface casing 21, the illumination substrate is undulated even when it receives an external force. Therefore, it is possible to provide the display device 10 that is less likely to be damaged by the above and a deterioration in image quality.
  • the display device 10 that can efficiently dissipate the heat generated by the illumination board 15 and the driver 18. Thereby, damage, deterioration, malfunction, etc. of each component by heat can be prevented.
  • the front surface of the base portion 20 has a rearward downward slope. Therefore, when the display device 10 is viewed from the front side, the presence of the base portion 20 is not conspicuous, and the display device 10 having a design that gives the impression that the display panel 12 and the wall are integrated can be provided.
  • a television receiver having an antenna terminal for connecting a television broadcast antenna and a tuner circuit for receiving television broadcast radio waves is mounted on the input board 23.
  • a predetermined process is performed on the broadcast signal received by the television receiver, and the broadcast signal is separated into a video signal and an audio signal.
  • An image is displayed on the display panel 12 based on the image signal.
  • the audio signal is output from the speaker 22.
  • an antenna for receiving a television broadcast may be mounted on the input board 23 instead of the antenna terminal.
  • a television receiver including the heat sink 31 having the rear plate portion 32, the bottom plate portion 34, and the holding portion 35, and the illumination substrate 15 is provided. be able to.
  • the rear plate portion 32 is disposed on the rear side of the display panel 12 that displays an image on the front surface.
  • the bottom plate portion 34 protrudes from the edge of the rear plate portion 32 toward the display panel 12 side.
  • the holding portion 35 protrudes from the rear plate portion 32 in the same direction as the bottom plate portion 34 so as to be shorter than the bottom plate portion 34.
  • the illumination board 15 is held by the holding part 35 of the heat sink 31 and illuminates the rear side of the display panel 12.
  • the display device 10 By using the display device 10 as a television receiver, it is possible to provide a television receiver including the side housing 13, the rear plate portion 32, and the heat radiating plate 31.
  • the side housing 13 covers a first side and a third side that are sides of the rectangular display panel 12 that displays an image on the front surface, and a second side that is a top side.
  • the rear plate portion 32 is disposed on the rear surface side of the display panel 12.
  • the heat radiating plate 31 has a side plate portion 33 that protrudes toward the display panel side 12 along the first side edge and the third side edge of the rear plate portion 32 and is fixed to the inner surface of the side housing 13.
  • a television receiver including the display panel 12, the flexible substrate 17, the integrated circuit 18, and the heat transfer member 46 can be provided.
  • the display panel 12 has a display surface for displaying images on the front surface.
  • the flexible substrate 17 is connected outward to the edge of the display panel 12 and is bent toward the display surface.
  • the integrated circuit 18 is fixed to the flexible substrate 17 and disposed on the front side of the display panel.
  • the heat transfer member 46 is disposed outside the edge of the display panel 12 and contacts the back side of the part to which the integrated circuit 18 or the integrated circuit 18 of the flexible substrate 17 is fixed.
  • the holding portion 35 is provided separately from the bottom plate portion 34 that fixes the heat radiating plate 31 and the lower surface casing 21, even when an external force is applied, the lighting substrate 15 is damaged due to undulating deformation and the image quality is deteriorated. Thus, it is possible to provide a television receiver in which the occurrence of noise is difficult to occur.
  • the present embodiment relates to the display device 10 in which the rear housing 16 does not have the lower plate portion 162. Note that description of portions common to the first embodiment is omitted.
  • FIG. 18 is an enlarged vertical cross-sectional view of the central portion of the display device 10 according to the second embodiment.
  • components other than the heat radiating plate 31, the lower case 21, the rear case 16, the illumination board 15, and the light guide plate 14 are not shown.
  • the rear housing 16 has a flat plate shape without the lower plate portion 162.
  • the bottom plate portion 34 of the heat radiating plate 31 and the lower surface casing 21 of the base portion 20 are in direct contact.
  • the rear housing 16 and the rear plate portion 32 are fixed with a double-sided tape or an adhesive.
  • the rear housing 16 and the rear plate portion 32 may be fixed by screws or the like (not shown).
  • the bottom plate portion 34 and the lower surface casing 21 may be fixed by, for example, friction stir welding, spot welding, rivets, or the like.
  • the rear housing 16 since the rear housing 16 is a flat plate, it can be easily stored and handled in a component state. According to the present embodiment, since the bottom plate portion 34 and the lower surface casing 21 are in direct contact with each other, a joining technique such as friction stir welding or spot welding can be used.
  • the present embodiment relates to the display device 10 in which the heat radiating plate 31 and the rear housing 16 are integrated. Note that description of portions common to the first embodiment is omitted.
  • FIG. 19 is a longitudinal sectional view of the central portion of the display device 10 according to the third embodiment.
  • the rear plate portion 32 of the present embodiment also serves as an exterior member that covers the back surface of the display device 10.
  • the display device 10 since the rear plate portion 32 of the heat radiating plate 31 is extended upward and used as the rear housing 16, the display device 10 having a small number of components and a high heat radiating effect can be provided.
  • the present embodiment relates to the display device 10 having a thin portion 38 in which a part of the rear plate portion 32 is thinned between the holding portion 35 and the bottom plate portion 34 of the heat radiating plate 31. Note that description of portions common to the first embodiment is omitted.
  • FIG. 20 is an enlarged vertical cross-sectional view of the central portion of the display device 10 according to the fourth embodiment.
  • components other than the heat radiating plate 31, the lower case 21, the rear case 16, the illumination board 15, and the light guide plate 14 are not shown.
  • a thin part 38 in which a part of the rear plate part 32 is thinned is provided.
  • the rear plate part 32 is elastically deformed in the vicinity of the thin part 38.
  • the light guide plate 14 and the illumination board 15 are integrally tilted in the front-rear direction, but the mutual positional relationship does not change.
  • the shape of the rear plate part 32 returns to the original state. Since the positional relationship between the light guide plate 14 and the illumination substrate 15 does not change, the external force applied to the display unit 11 can prevent damage due to a change in the positional relationship between the light guide plate 14 and the illumination substrate 15 and collision between the two. Can do.
  • the presence of the thin portion 38 can prevent a positional shift between the light guide plate 14 and the illumination substrate 15. Furthermore, since the heat sink 31 can be reduced in weight, the lightweight display device 10 can be provided.
  • the display device 10 protrudes toward the display panel 12 from the rear plate portion 32 disposed on the rear side of the display panel 12 that displays an image on the front surface and the edge of the rear plate portion 32.
  • a heat sink 31 having a bottom plate 34, a holding plate 35 projecting from the rear plate 32 in the same direction as the bottom plate 34 shorter than the bottom plate 34, and the holding portion 35 of the heat sink 31.
  • an illumination unit 15 that illuminates the rear side of the display panel 12.
  • the holding portion 35 that holds the illumination portion 15 is provided separately from the bottom plate portion 34 that is fixed to the lower surface casing 21, the image quality is deteriorated due to distortion or breakage of the illumination portion 15 due to external force. Therefore, it is possible to provide the display device 10 that is less likely to cause the problem.
  • the rear plate portion 32 has a thick portion 37 that is thicker than other portions on the opposite side of the base plate portion 34 of the holding portion 35 from the bottom plate portion 34.
  • the portion that is in contact with the upper side of the holding portion 35 has the thick portion 37 that is thicker than the other portions, so that deformation is unlikely to occur in this portion. For this reason, deformation due to external force mainly occurs at a portion between the holding portion 35 and the bottom plate portion 34, and misalignment between components in the display portion 11 hardly occurs.
  • the rear plate portion 32 includes a thin portion 38 between the holding portion 35 and the bottom plate portion 34 that is thinner than other portions.
  • the presence of the thin-walled portion 38 can prevent misalignment between the light guide plate 14 and the illumination substrate 15. Furthermore, since the heat sink 31 can be reduced in weight, the lightweight display device 10 can be provided.
  • the display device 10 includes a light guide plate 14 disposed on the rear surface of the display panel 12 and having one end surface facing the illumination unit 15.
  • the display device 10 having an edge light type backlight.
  • the display device 10 accommodates a rectangular plate-like display unit 11 having the display panel 12 and the bottom plate unit 34, and protrudes from one side of the display unit 11 to the display surface side of the display panel 12. And a plate-like base portion 20 that forms an L shape together with the display portion 11.
  • an L-shaped display device 10 that can effectively use the space of a room without generating a dead space by providing the rear side along a wall surface or the like is provided. It is possible.
  • the display device 10 includes a side housing 13 that covers a first side and a third side that are side edges of the rectangular display panel 12, and a second side that is a top side.
  • the heat radiating plate 31 protrudes toward the display panel 12 along the first plate side edge and the third side edge of the rear plate portion 32 and the rear plate portion 32, and the side housing 13.
  • the side plate portion 33 is fixed to the inner surface.
  • the frame body that is fixed in a state where the side housing 13 and the heat radiating plate 31 are in contact with each other is configured, the display panel 12, the lead plate 12, even when subjected to external force. Thin members such as the optical plate 14 and the rear housing 16 can be prevented from being deformed or broken. Further, since the heat radiating plate 31 also serves as a structural member, the display device 10 can be configured with a small number of components.
  • the display device 10 is connected outwardly to the edge of the display panel 12 and is bent to the display surface side of the display panel 12, and is fixed to the flexible substrate 17 and fixed to the display panel.
  • the integrated circuit 18 disposed on the front side of the display panel 12 and the edge of the display panel 12 are disposed on the back side of the portion of the integrated circuit 18 or the flexible substrate 17 to which the integrated circuit 18 is fixed.
  • the display device 10 that can efficiently dissipate the heat generated by the integrated circuit 18. Thereby, damage, deterioration, malfunction, etc. of the integrated circuit and the components arranged in the vicinity thereof due to heat can be prevented.
  • a television receiver includes the display device 10 according to any one of the above and a receiving unit that receives a television broadcast, and based on the television broadcast received by the receiving unit, An image is displayed on the display device 10.
  • the present invention it is possible to provide a television apparatus in which image quality deterioration due to distortion and breakage of the illumination unit 15 due to external force is unlikely to occur.

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Abstract

Provided is a display device or the like that is capable of preventing display unevenness caused by a shift in the positional relationship between a lighting unit and a light-guiding plate even when an external force acts on a display panel. This display device (10) is provided with: a heat dissipation plate (31) having a rear plate part (32) disposed on a rear side of a display panel (12) that displays an image on a front surface, a bottom plate part (34) that protrudes from an edge of the rear plate part (32) toward the display panel (12), and a holding part (35) that protrudes less than the bottom plate part (34) from the rear plate part (32) in the same direction as the bottom plate (34); and a lighting unit (15) that is held by the holding part (35) of the heat dissipation plate (31) and illuminates the rear side of the display panel (12).

Description

表示装置およびテレビジョン受信機Display device and television receiver
　本発明は、表示装置およびテレビジョン受信機に関する。 The present invention relates to a display device and a television receiver.
　液晶表示装置は、映像を表示する液晶表示パネルと、液晶表示パネルを後側から照明するバックライトとを備える。液晶表示パネルの後側を板状の導光板で覆い、導光板の端面から照明光を入射する、エッジライト方式のバックライトを備える表示装置が開示されている（特許文献１）。 The liquid crystal display device includes a liquid crystal display panel that displays an image and a backlight that illuminates the liquid crystal display panel from the rear side. There has been disclosed a display device including an edge light type backlight in which a rear side of a liquid crystal display panel is covered with a plate-shaped light guide plate and illumination light is incident from an end face of the light guide plate (Patent Document 1).
　導光板は、端面から入射した照明光を、液晶パネル側の広面から均一に放射して、液晶表示パネルを照明する。バックライトの作用により、ユーザは液晶表示パネルに表示される映像を視認することができる。 The light guide plate illuminates the liquid crystal display panel by uniformly radiating illumination light incident from the end face from the wide surface on the liquid crystal panel side. By the action of the backlight, the user can visually recognize the video displayed on the liquid crystal display panel.
特開２０１４－９６２３４号公報JP 2014-96234 A
　特許文献１に開示された表示装置では、表示パネルの後側に配置された導光板の側面と、表示パネルの縁に沿って配置された照明部とが対向している。表示装置に外力が働いた場合に照明部と導光板との位置関係がずれてしまい、表示ムラ等が生じるおそれがある。 In the display device disclosed in Patent Document 1, the side surface of the light guide plate arranged on the rear side of the display panel is opposed to the illumination unit arranged along the edge of the display panel. When an external force is applied to the display device, the positional relationship between the illuminating unit and the light guide plate is shifted, which may cause display unevenness.
　一つの側面では、表示パネルに外力が働いた場合でも、照明部と導光板との位置関係のずれによる表示ムラを防ぐことが可能な表示装置等を提供することを目的とする。 An object of one aspect is to provide a display device and the like that can prevent display unevenness due to a shift in the positional relationship between an illumination unit and a light guide plate even when an external force is applied to the display panel.
　本発明にかかる表示装置は、前面に映像を表示する表示パネルの後側に配置された後板部、前記後板部の縁から前記表示パネル側に突出する底板部、および、前記後板部から前記底板部と同じ向きに前記底板部よりも短く突出する保持部を有する放熱板と、前記放熱板の前記保持部に保持され、前記表示パネルの後側を照明する照明部とを備える。 The display device according to the present invention includes a rear plate portion disposed on the rear side of the display panel that displays an image on the front surface, a bottom plate portion that protrudes toward the display panel from an edge of the rear plate portion, and the rear plate portion. The heat radiating plate having a holding portion that protrudes shorter than the bottom plate portion in the same direction as the bottom plate portion, and an illumination portion that is held by the holding portion of the heat radiating plate and illuminates the rear side of the display panel.
　本発明にかかる表示装置は、前記後板部は、前記保持部の基端部の前記底板部と反対側に、他の部分よりも厚い厚肉部を有する。 In the display device according to the present invention, the rear plate portion has a thicker portion thicker than other portions on the side opposite to the bottom plate portion of the base end portion of the holding portion.
　本発明にかかる表示装置は、前記後板部は、前記保持部と前記底板部との間に、他の部分よりも薄い薄肉部を有する。 In the display device according to the present invention, the rear plate portion has a thin portion thinner than other portions between the holding portion and the bottom plate portion.
　本発明にかかる表示装置は、前記表示パネルの後面に配置され、一つの端面が前記照明部と対向する導光板を有する。 The display device according to the present invention includes a light guide plate disposed on the rear surface of the display panel and having one end surface facing the illumination unit.
　本発明にかかる表示装置は、前記表示パネルを有する矩形板状の表示部と、前記底板部を収容し、前記表示部の一辺から前記表示パネルの表示面側に突出して、前記表示部と共にＬ字型を形成する板状のベース部とを備える。 A display device according to the present invention accommodates a rectangular plate-like display unit having the display panel and the bottom plate unit, protrudes from one side of the display unit to the display surface side of the display panel, and moves together with the display unit to display L And a plate-like base portion forming a letter shape.
　本発明にかかる表示装置は、矩形の前記表示パネルの側面の辺である第１辺および第３辺と、天側の辺である第２辺とを覆う側面筐体を備え、前記放熱板は、前記後板部、および、前記後板部の前記第１辺側の縁および前記第３辺側の縁に沿って前記表示パネル側に突出し、前記側面筐体の内面に固定された側板部を有する。 The display device according to the present invention includes a side housing that covers a first side and a third side that are side sides of the rectangular display panel, and a second side that is a top side, and the heat dissipation plate includes: The side plate portion that protrudes toward the display panel along the first side edge and the third side edge of the rear plate portion and is fixed to the inner surface of the side housing. Have
　本発明にかかる表示装置は、前記表示パネルの縁に外向きに接続され、前記表示パネルの表示面側に屈曲させた軟性基板と、前記軟性基板に固定されて前記表示パネルよりも前側に配置された集積回路と、前記表示パネルの縁よりも外側に配置されており、前記集積回路または前記軟性基板の前記集積回路が固定された部分の裏側に接触する伝熱部材とを備える。 The display device according to the present invention is connected outwardly to an edge of the display panel and is bent toward the display surface side of the display panel, and is fixed to the flexible substrate and disposed in front of the display panel. And a heat transfer member disposed outside the edge of the display panel and contacting a back side of the integrated circuit or a portion of the flexible substrate to which the integrated circuit is fixed.
　本発明にかかるテレビジョン受信機は、上述のいずれか一つに記載の表示装置と、テレビジョン放送を受信する受信部とを備え、前記受信部にて受信したテレビジョン放送に基づいて、前記表示装置に映像を表示するようにしてある。 A television receiver according to the present invention includes the display device according to any one of the above and a receiving unit that receives a television broadcast, and based on the television broadcast received by the receiving unit, An image is displayed on the display device.
　表示パネルに外力が働いた場合でも、照明部と導光板との位置関係のずれによる表示ムラを防ぐことが可能な表示装置等を提供することができる。 Even when an external force is applied to the display panel, it is possible to provide a display device or the like that can prevent display unevenness due to the positional relationship between the illumination unit and the light guide plate.
表示装置の外観斜視図である。It is an external appearance perspective view of a display apparatus. 表示装置の側面図である。It is a side view of a display apparatus. 表示装置の主要部の分解斜視図である。It is a disassembled perspective view of the principal part of a display apparatus. 表示装置の中央部の縦断面図である。It is a longitudinal cross-sectional view of the center part of a display apparatus. 放熱板の斜視図である。It is a perspective view of a heat sink. 放熱板の拡大斜視図である。It is an expansion perspective view of a heat sink. 側面筐体と放熱板とを組み合わせた状態を示す模式図である。It is a schematic diagram which shows the state which combined the side housing and the heat sink. 補強体の斜視図である。It is a perspective view of a reinforcement body. 表示装置の内部の斜視図である。It is a perspective view inside a display apparatus. 表示装置の横断面図である。It is a cross-sectional view of a display device. 表示パネルの拡大斜視図である。It is an expansion perspective view of a display panel. 第１基板台の拡大斜視図である。It is an expansion perspective view of the 1st substrate stand. 第２基板台の拡大斜視図である。It is an expansion perspective view of the 2nd substrate stand. シミュレーションモデルを示す説明図である。It is explanatory drawing which shows a simulation model. 比較例のシミュレーションモデルを示す説明図である。It is explanatory drawing which shows the simulation model of a comparative example. 本実施の形態のシミュレーション結果を示す説明図である。It is explanatory drawing which shows the simulation result of this Embodiment. 比較例のシミュレーション結果を示す説明図である。It is explanatory drawing which shows the simulation result of a comparative example. 実施の形態２の表示装置の中央部の縦断面拡大図である。FIG. 6 is an enlarged vertical cross-sectional view of a central portion of the display device according to the second embodiment. 実施の形態３の表示装置の中央部の縦断面図である。6 is a longitudinal sectional view of a central portion of a display device according to Embodiment 3. FIG. 実施の形態４の表示装置の中央部の縦断面拡大図である。FIG. 6 is an enlarged vertical cross-sectional view of a central portion of a display device according to a fourth embodiment.
［実施の形態１］
　図１は、表示装置の外観斜視図である。以下の説明では、各図中に矢印で示す前、後、左、右、上および下のそれぞれの向きを使用する。表示装置１０は、略長方形板状の表示部１１と、略長方形板状のベース部２０とを備える。表示部１１は、長方形の平板状の表示パネル１２を備える。表示パネル１２の上および左右の縁は、表示部１１の外装部材である側面筐体１３で覆われている。 [Embodiment 1]
FIG. 1 is an external perspective view of a display device. In the following description, the front, back, left, right, top, and bottom orientations indicated by arrows in each figure are used. The display device 10 includes a substantially rectangular plate-like display unit 11 and a substantially rectangular plate-like base unit 20. The display unit 11 includes a rectangular flat display panel 12. The upper and left and right edges of the display panel 12 are covered with a side housing 13 that is an exterior member of the display unit 11.
　図２は、表示装置１０の側面図である。ベース部２０は、表示部１１の下辺から前方に突出している。ベース部２０は、表示部１１の後方には突出していない。すなわち、表示装置１０は、表示部１１とベース部２０とがＬ字形に連続する形状を有する。ベース部２０の上面は平面である。ベース部２０の前面側の突出端部には、後ろ下向きに傾斜する傾斜面が設けられている。 FIG. 2 is a side view of the display device 10. The base part 20 protrudes forward from the lower side of the display part 11. The base unit 20 does not protrude behind the display unit 11. That is, the display device 10 has a shape in which the display unit 11 and the base unit 20 are continuous in an L shape. The upper surface of the base part 20 is a plane. An inclined surface that is inclined rearward and downward is provided at the protruding end portion of the base portion 20 on the front surface side.
　図３は、表示装置１０の主要部の分解斜視図である。図４は、表示装置１０の中央部の縦断面図である。図３および図４を使用して、表示装置１０の主要部の概要について説明する。 FIG. 3 is an exploded perspective view of the main part of the display device 10. FIG. 4 is a longitudinal sectional view of the central portion of the display device 10. An outline of a main part of the display device 10 will be described with reference to FIGS. 3 and 4.
　表示部１１は、表示パネル１２および側面筐体１３に加えて、導光板１４、放熱板３１および後面筐体１６を有する。 The display unit 11 includes a light guide plate 14, a heat radiating plate 31, and a rear case 16 in addition to the display panel 12 and the side case 13.
　導光板１４は、たとえば透明度の高い矩形のアクリル板である。導光板１４の広面は、表示パネル１２の広面と略同一形状である。導光板１４の表示パネル１２側の広面には、光学シートが設けられている。導光板１４の表示パネル１２とは反対側の広面には、反射シートが設けられている。 The light guide plate 14 is, for example, a highly transparent rectangular acrylic plate. The wide surface of the light guide plate 14 has substantially the same shape as the wide surface of the display panel 12. An optical sheet is provided on the wide surface of the light guide plate 14 on the display panel 12 side. A reflection sheet is provided on the wide surface of the light guide plate 14 opposite to the display panel 12.
　放熱板３１は、それぞれが略長方形板状の後板部３２、底板部３４および保持部３５を有する。後板部３２は、導光板１４の下部を後側から覆う。底板部３４は、後板部３２の下辺から前向きに突出する。保持部３５は、底板部３４の少し上側で、後板部３２から前向きに、底板部３４に比べて短く突出する。 The heat sink 31 has a rear plate portion 32, a bottom plate portion 34, and a holding portion 35, each of which has a substantially rectangular plate shape. The rear plate portion 32 covers the lower portion of the light guide plate 14 from the rear side. The bottom plate portion 34 projects forward from the lower side of the rear plate portion 32. The holding portion 35 slightly protrudes from the rear plate portion 32 forward and slightly shorter than the bottom plate portion 34 slightly above the bottom plate portion 34.
　後板部３２、底板部３４および保持部３５の長辺の長さは、表示部１１の下辺の長さと略同一である。保持部３５は、底板部３４と平行である。すなわち、底板部３４、保持部３５および後板部３２は、図４に示すように略Ｆ字型を形成している。 The lengths of the long sides of the rear plate portion 32, the bottom plate portion 34, and the holding portion 35 are substantially the same as the length of the lower side of the display unit 11. The holding part 35 is parallel to the bottom plate part 34. That is, the bottom plate portion 34, the holding portion 35, and the rear plate portion 32 form a substantially F shape as shown in FIG.
　保持部３５の上面には、導光板１４の下側の端面に対向するように照明基板１５が固定されている。照明基板１５は、導光板１４の長辺と略同一長さの長板形状の回路基板である。照明基板１５の導光板１４に対向する面には、複数の白色ＬＥＤ（Light Emitting Diode）が実装されている。 The illumination board 15 is fixed to the upper surface of the holding part 35 so as to face the lower end face of the light guide plate 14. The illumination board 15 is a long board-shaped circuit board having substantially the same length as the long side of the light guide plate 14. A plurality of white LEDs (Light Emitting Diode) are mounted on the surface of the illumination substrate 15 facing the light guide plate 14.
　後面筐体１６は、表示部１１の後面を覆う外装部材である。後面筐体１６は、背板部１６１と下板部１６２とを有する。背板部１６１は、表示パネル１２と略同一形状の長方形板状である。下板部１６２は、背板部１６１の下辺から前方に延びる長方形板状である。後面筐体１６は、長方形の薄い鋼板等を曲げることにより製作されている。 The rear housing 16 is an exterior member that covers the rear surface of the display unit 11. The rear housing 16 has a back plate portion 161 and a lower plate portion 162. The back plate portion 161 has a rectangular plate shape that is substantially the same shape as the display panel 12. The lower plate portion 162 has a rectangular plate shape that extends forward from the lower side of the back plate portion 161. The rear housing 16 is manufactured by bending a rectangular thin steel plate or the like.
　側面筐体１３は、下側が開口する略Ｕ字型の枠体であり、内向きに突出する前側縁１３１および後側縁１３２を有する。後側縁１３２は、前側縁１３１よりも短い。前側縁１３１は表示パネル１２および導光板１４に当接する。後側縁１３２は、後面筐体１６に当接する。側面筐体１３は、図４に示されるように前側縁１３１と後側縁１３２とが一端で接続された略Ｕ字状断面の金属棒を折り曲げて製作されている。 The side housing 13 is a substantially U-shaped frame that opens on the lower side, and has a front side edge 131 and a rear side edge 132 that protrude inward. The rear edge 132 is shorter than the front edge 131. The front edge 131 contacts the display panel 12 and the light guide plate 14. The rear edge 132 abuts on the rear housing 16. As shown in FIG. 4, the side housing 13 is manufactured by bending a metal bar having a substantially U-shaped cross section in which a front edge 131 and a rear edge 132 are connected at one end.
　ベース部２０は、化粧板２５、上面筐体２６、下面筐体２１および第１おもり５１を有する。上面筐体２６と下面筐体２１との間には、２個のスピーカ２２、入力基板２３、制御基板２４、第１基板台４１、第２基板台４６および第４おもり５４が収容されている。 The base unit 20 includes a decorative plate 25, an upper surface casing 26, a lower surface casing 21, and a first weight 51. Two speakers 22, an input board 23, a control board 24, a first board base 41, a second board base 46, and a fourth weight 54 are accommodated between the upper case 26 and the lower case 21. .
　下面筐体２１は、長方形の底部２１１および底部２１１の前側の縁から上向きに立ち上がる縁部２１２を備える。下面筐体２１、後面筐体１６の下板部１６２、および放熱板３１の底板部３４は重ねられており、下側から第１ねじ６１により固定されている。下面筐体２１と放熱板３１の底板部３４とは、さらに前方向に延び、下側から第２ねじ６２により固定されている。第１ねじ６１および第２ねじ６２は、左右方向に沿ってそれぞれ複数配置されている。 The lower surface casing 21 includes a rectangular bottom portion 211 and an edge portion 212 that rises upward from the front edge of the bottom portion 211. The lower case 21, the lower plate part 162 of the rear case 16, and the bottom plate part 34 of the heat radiating plate 31 are overlapped and fixed by the first screw 61 from the lower side. The lower surface casing 21 and the bottom plate portion 34 of the heat radiating plate 31 further extend in the forward direction and are fixed by a second screw 62 from below. A plurality of first screws 61 and second screws 62 are arranged along the left-right direction.
　底部２１１の上には、中央から前方寄りの位置に、長方形板状の第４おもり５４が固定されている。第４おもり５４は、銅合金等の熱伝導性と密度の両方が高い材料製であることが望ましい。 A rectangular plate-like fourth weight 54 is fixed on the bottom 211 at a position closer to the front from the center. The fourth weight 54 is preferably made of a material having high thermal conductivity and high density, such as a copper alloy.
　第４おもり５４の上に、第２基板台４６が固定されている。第２基板台４６の形状の詳細については後述する。第２基板台４６の上には、２個のスピーカ２２、入力基板２３、制御基板２４および図示しない配線部材等が配置されている。 The second board base 46 is fixed on the fourth weight 54. Details of the shape of the second substrate base 46 will be described later. On the second board base 46, two speakers 22, an input board 23, a control board 24, a wiring member (not shown), and the like are arranged.
　上面筐体２６は、下面筐体２１の上部開口を覆う。上面筐体２６は、底を上側に向けた長方形箱型の箱状部２６１および箱状部２６１の縁から前側および左右に突出する外縁部２６２を有する。前側の外縁部２６２の上に、第１おもり５１が固定されている。第１おもり５１は、ベース部２０の左右方向の略全長にわたる長さを有する長板である。第１おもり５１と箱状部２６１とは、外装部品である化粧板２５により覆われている。 The upper case 26 covers the upper opening of the lower case 21. The top housing 26 has a rectangular box-shaped box-like part 261 with the bottom facing upward, and an outer edge part 262 projecting forward and left and right from the edge of the box-like part 261. A first weight 51 is fixed on the outer edge 262 on the front side. The first weight 51 is a long plate having a length that extends over substantially the entire length of the base portion 20 in the left-right direction. The first weight 51 and the box-shaped portion 261 are covered with a decorative plate 25 that is an exterior part.
　図５は、放熱板３１の斜視図である。図６は、放熱板３１の拡大斜視図である。放熱板３１は、後板部３２の左右それぞれの短辺に沿って前方に突出する長方形板状の側板部３３を有する。側板部３３の下部には、第４孔７４が設けられている。さらに、側板部３３には略等間隔に４個の第５孔７５が設けられている。第４孔７４および第５孔７５の内面には、雌ねじが設けられている。第３孔７３、第４孔７４および第５孔７５の機能については後述する。なお、第５孔７５の数は、図５に示す４個に限定しない。表示装置１０の寸法等に応じて、任意の数の第５孔７５を設けることができる。 FIG. 5 is a perspective view of the heat sink 31. FIG. 6 is an enlarged perspective view of the heat radiating plate 31. The heat radiating plate 31 has a rectangular plate-shaped side plate portion 33 that protrudes forward along the left and right short sides of the rear plate portion 32. A fourth hole 74 is provided in the lower portion of the side plate portion 33. Further, the side plate portion 33 is provided with four fifth holes 75 at substantially equal intervals. Female threads are provided on the inner surfaces of the fourth hole 74 and the fifth hole 75. The functions of the third hole 73, the fourth hole 74, and the fifth hole 75 will be described later. The number of the fifth holes 75 is not limited to four shown in FIG. An arbitrary number of fifth holes 75 can be provided according to the dimensions of the display device 10 and the like.
　底板部３４は、第１孔７１および第１孔７１の前側に配置された第２孔７２を備える。第１孔７１および第２孔７２は、左右方向に所定間隔でそれぞれ複数配列している。第１孔７１および第２孔７２の内面には雌ねじが設けられている。第１孔７１には、図４を使用して説明した第１ねじ６１が挿入される。第２孔７２には、図４を使用して説明した第２ねじ６２が挿入される。 The bottom plate portion 34 includes a first hole 71 and a second hole 72 disposed on the front side of the first hole 71. A plurality of first holes 71 and second holes 72 are arranged at predetermined intervals in the left-right direction. Female threads are provided on the inner surfaces of the first hole 71 and the second hole 72. The first screw 61 described using FIG. 4 is inserted into the first hole 71. The second screw 62 described with reference to FIG. 4 is inserted into the second hole 72.
　底板部３４の左右の端の後方寄りには、第３孔７３が設けられている。第３孔７３は、丸孔である。後板部３２は、保持部３５の上側に接する部分に、他の部分よりも肉厚になった厚肉部３７を有する。 A third hole 73 is provided near the rear of the left and right ends of the bottom plate portion 34. The third hole 73 is a round hole. The rear plate portion 32 has a thick portion 37 that is thicker than other portions at a portion that contacts the upper side of the holding portion 35.
　放熱板３１は、Ｆ字型断面を有するアルミニウム合金または銅合金等の高熱伝導性金属の押出成形品を切断し、端部を折り曲げて側板部３３を形成することにより製作される。 The heat radiating plate 31 is manufactured by cutting an extruded product of a metal with high thermal conductivity such as an aluminum alloy or a copper alloy having an F-shaped cross section, and bending the end portion to form the side plate portion 33.
　図７は、側面筐体１３と放熱板３１とを組み合わせた状態を示す模式図である。図７は後側からみた模式図である。図３から図７を使用して、表示部１１の強度を確保する構造について説明する。 FIG. 7 is a schematic diagram showing a state in which the side housing 13 and the heat radiating plate 31 are combined. FIG. 7 is a schematic view seen from the rear side. A structure for ensuring the strength of the display unit 11 will be described with reference to FIGS. 3 to 7.
　側面筐体１３の後側縁１３２は、側面筐体１３の下部においては除去されており、その部分に放熱板３１がはめ込まれて、長方形の枠体を形成する。側面筐体１３の下端部においては、前側縁１３１も除去されている。 The rear edge 132 of the side casing 13 is removed at the lower part of the side casing 13, and the heat radiating plate 31 is fitted into that portion to form a rectangular frame. The front side edge 131 is also removed at the lower end of the side housing 13.
　側面筐体１３の内面と放熱板３１の側板部３３の外面とが接触する。側面筐体１３と側板部３３とは、側面筐体１３の外側から第５孔７５に挿入された皿ねじにより固定される。以上のように、側面筐体１３と放熱板３１とが面で接触した状態で固定されることにより、外力を受けても歪みにくい、構造部材の枠体が構成される。 The inner surface of the side housing 13 and the outer surface of the side plate portion 33 of the heat radiating plate 31 are in contact with each other. The side housing 13 and the side plate portion 33 are fixed by a countersunk screw inserted into the fifth hole 75 from the outside of the side housing 13. As described above, by fixing the side housing 13 and the heat radiating plate 31 in contact with each other, a frame of a structural member that is not easily distorted even when subjected to an external force is configured.
　図３に示すように、表示装置１０は、表示部１１とベース部２０との間の連結を補強する２個の補強体２７を備える。２個の補強体２７は、対称形である。図８は、補強体２７の斜視図である。図８は、右側の補強体２７を示す。 As shown in FIG. 3, the display device 10 includes two reinforcing bodies 27 that reinforce the connection between the display unit 11 and the base unit 20. The two reinforcing bodies 27 are symmetrical. FIG. 8 is a perspective view of the reinforcing body 27. FIG. 8 shows the right reinforcing body 27.
　補強体２７は、それぞれが略長方形の第１板部２７１、第２板部２７２および第３板部２７３を有する。第１板部２７１は、第２板部２７２の長辺から前側に突出する。第３板部２７３は、第２板部２７２の短辺から後側に突出する。第１板部２７１は中央部にねじ孔を有する。第３板部２７３は、中央部に貫通孔を有する。補強体２７は、略Ｌ字型の鋼板を２箇所で折り曲げて製作されている。第１板部２７１、第２板部２７２および第３板部２７３は、それぞれ互いに略垂直である。 The reinforcing body 27 has a first plate portion 271, a second plate portion 272, and a third plate portion 273 that are each substantially rectangular. The first plate portion 271 protrudes forward from the long side of the second plate portion 272. The third plate portion 273 protrudes rearward from the short side of the second plate portion 272. The first plate portion 271 has a screw hole at the center. The 3rd board part 273 has a through-hole in the center part. The reinforcing body 27 is manufactured by bending a substantially L-shaped steel plate at two locations. The first plate part 271, the second plate part 272, and the third plate part 273 are substantially perpendicular to each other.
　図９は、表示装置１０の内部の斜視図である。図９は、表示部１１と下面筐体２１とを組み付けた状態を示す。図１０は、表示装置１０の横断面図である。図１０は、表示装置１０を、図２のＸ－Ｘ線により切断した断面の右端の部分を示す。なお、以下では表示装置１０の右端の部分の構造を例にして説明するが、表示装置１０の左側も同様の構造である。 FIG. 9 is a perspective view of the inside of the display device 10. FIG. 9 shows a state in which the display unit 11 and the lower surface casing 21 are assembled. FIG. 10 is a cross-sectional view of the display device 10. FIG. 10 shows a right end portion of a cross section of the display device 10 taken along line XX of FIG. Hereinafter, the structure of the right end portion of the display device 10 will be described as an example, but the left side of the display device 10 has the same structure.
　補強体２７は、表示部１１の右下方に配置されている。第１板部２７１は、放熱板３１の底板部３４の上に配置されている。第３板部２７３は、下面筐体２１の内面と側面筐体１３の外面との間に挟まれている。 The reinforcing body 27 is disposed on the lower right side of the display unit 11. The first plate portion 271 is disposed on the bottom plate portion 34 of the heat radiating plate 31. The third plate portion 273 is sandwiched between the inner surface of the lower surface housing 21 and the outer surface of the side surface housing 13.
　第３板部２７３の中央部に設けられた丸孔は、図６を使用して説明した側板部３３の第４孔７４と対応する位置に設けられている。側面筐体１３および下面筐体２１には、第４孔７４と対応する位置に図示しない丸孔が設けられている。図１０に示すように、下面筐体２１、補強体２７、側面筐体１３および放熱板３１の側板部３３は、下面筐体２１の外側から挿入される第４ねじ６４により固定される。 The round hole provided in the central part of the third plate part 273 is provided at a position corresponding to the fourth hole 74 of the side plate part 33 described with reference to FIG. The side housing 13 and the lower housing 21 are provided with round holes (not shown) at positions corresponding to the fourth holes 74. As shown in FIG. 10, the lower surface housing 21, the reinforcing body 27, the side surface housing 13, and the side plate portion 33 of the heat radiating plate 31 are fixed by a fourth screw 64 inserted from the outside of the lower surface housing 21.
　第１板部２７１の中央部に設けられたねじ孔は、図６を使用して説明した底板部３４の第３孔７３と対応する位置に設けられている。後面筐体１６の下板部１６２にも、第３孔７３と対応する位置に図示しない丸孔が設けられている。さらに、下面筐体２１の底部２１１には、第３孔７３と対応する位置に皿孔が設けられている。下面筐体２１、後面筐体１６、放熱板３１および補強体２７は、下側から挿入される第３ねじ６３により固定される。第３ねじ６３は、皿ねじである。 The screw hole provided in the central portion of the first plate portion 271 is provided at a position corresponding to the third hole 73 of the bottom plate portion 34 described with reference to FIG. The lower plate portion 162 of the rear housing 16 is also provided with a round hole (not shown) at a position corresponding to the third hole 73. Furthermore, a countersink hole is provided at a position corresponding to the third hole 73 in the bottom portion 211 of the lower surface casing 21. The lower surface housing 21, the rear surface housing 16, the heat radiating plate 31, and the reinforcing body 27 are fixed by a third screw 63 inserted from below. The third screw 63 is a countersunk screw.
　以上に説明したように、左右に補強体２７を用いることにより、表示部１１とベース部２０とが強固に固定される。なお、補強体２７を使用せず、下面筐体２１、側面筐体１３および放熱板３１を２本以上のねじを用いて固定しても良い。 As described above, the display unit 11 and the base unit 20 are firmly fixed by using the reinforcing bodies 27 on the left and right. In addition, you may fix the lower surface housing | casing 21, the side surface housing | casing 13, and the heat sink 31 using two or more screws, without using the reinforcement body 27. FIG.
　図１１は、表示パネル１２の拡大斜視図である。表示パネル１２の下辺に沿って外向きに、複数のドライバ基板１７が接続されている。ドライバ基板１７は、表示パネル１２に接続された軟性基板の一例である。ドライバ基板１７は長方形であり、一方の長辺が表示パネル１２に接続されている。ドライバ基板１７には、たとえばポリイミド製シートと金属製の配線パターンとを積層したＦＰＣ（Flexible printed circuits）を使用する。 FIG. 11 is an enlarged perspective view of the display panel 12. A plurality of driver boards 17 are connected outward along the lower side of the display panel 12. The driver substrate 17 is an example of a flexible substrate connected to the display panel 12. The driver board 17 is rectangular, and one long side is connected to the display panel 12. For the driver board 17, for example, FPC (Flexible printed し た circuits) in which a polyimide sheet and a metal wiring pattern are laminated is used.
　ドライバ基板１７の他方の長辺には、ドライバ制御基板１９が接続されている。図３に示すようにドライバ制御基板１９は、表示パネル１２の長辺の約半分の長さの長辺を有する長方形の基板である。表示装置１０は、２枚のドライバ制御基板１９を有する。１枚のドライバ制御基板１９は、６枚のドライバ基板１７を介して表示パネル１２に接続されている。 A driver control board 19 is connected to the other long side of the driver board 17. As shown in FIG. 3, the driver control board 19 is a rectangular board having a long side that is about half the long side of the display panel 12. The display device 10 includes two driver control boards 19. One driver control board 19 is connected to the display panel 12 via six driver boards 17.
　図４に示すように、ドライバ基板１７の後面には、ドライバ１８が実装されている。ドライバ１８は、表示パネル１２の表示面よりも前側に配置されている。ドライバ１８は、ドライバ制御基板１９から入力された信号に基づいて表示パネル１２の各画素を駆動する駆動信号を出力する集積回路である。なお、ドライバ１８は、表示パネル１２の近傍に配置する集積回路の一例である。また、ドライバ制御基板１９は、集積回路制御基板の一例である。 As shown in FIG. 4, a driver 18 is mounted on the rear surface of the driver board 17. The driver 18 is disposed in front of the display surface of the display panel 12. The driver 18 is an integrated circuit that outputs a drive signal for driving each pixel of the display panel 12 based on a signal input from the driver control board 19. The driver 18 is an example of an integrated circuit disposed in the vicinity of the display panel 12. The driver control board 19 is an example of an integrated circuit control board.
　ドライバ制御基板１９およびドライバ基板１７の数は、図３に示すものに限定しない。表示パネル１２の画素数等の仕様に応じた、任意の数のドライバ制御基板１９およびドライバ基板１７を使用することができる。１枚のドライバ基板１７に複数のドライバ１８を実装しても良い。 The number of driver control boards 19 and driver boards 17 is not limited to that shown in FIG. Any number of driver control boards 19 and driver boards 17 according to specifications such as the number of pixels of the display panel 12 can be used. A plurality of drivers 18 may be mounted on one driver board 17.
　図１２は、第１基板台４１の拡大斜視図である。図３および図１２を使用して、第１基板台４１の形状を説明する。第１基板台４１は、左右方向に長い２段の階段状の階段板部４３と、基板おさえ部４２と有する。基板おさえ部４２は、階段板部４３の中央部から前方向に延び、上に延びた後に後方に折り返すＪ字板状である。 FIG. 12 is an enlarged perspective view of the first substrate base 41. The shape of the first substrate base 41 will be described with reference to FIGS. 3 and 12. The first substrate base 41 has a two-step staircase plate portion 43 that is long in the left-right direction, and a substrate holding portion 42. The board holding portion 42 is a J-shaped plate that extends in the forward direction from the center of the staircase plate 43 and extends upward and then turns back.
　図１３は、第２基板台４６の拡大斜視図である。図３および図１３を使用して、第２基板台４６の形状を説明する。第２基板台４６は、左右方向に長い長方形板の前側の長辺の中央部に、前向きに延びるメイン基板載置部４７を有し、メイン基板載置部４７の左右に前向きに延びるスピーカ載置部４８を有する。さらに第２基板台４６は、左右方向に長い長方形板の後側の長辺から斜め上後方に立ち上がる伝熱部４９を有する。第２基板台４６は、本実施の形態の伝熱部材の一例である。 FIG. 13 is an enlarged perspective view of the second substrate base 46. The shape of the second substrate base 46 will be described with reference to FIGS. 3 and 13. The second substrate base 46 has a main substrate mounting portion 47 that extends forward at the center of the long side of the front side of the rectangular plate that is long in the left-right direction, and a speaker mounting that extends forward to the left and right of the main substrate mounting portion 47. A placement part 48 is provided. Furthermore, the second substrate base 46 has a heat transfer section 49 that rises obliquely upward and rearward from the long side of the rectangular plate that is long in the left-right direction. The second substrate base 46 is an example of a heat transfer member of the present embodiment.
　第２基板台４６は、アルミニウム合金または銅合金等の高熱伝導性を有する金属板を折り曲げることにより製作される。高熱伝導性グレードのナイロン樹脂、ポリカーボネート樹脂等の高熱伝導性樹脂を射出成形して第２基板台４６を製作しても良い。 The second substrate base 46 is manufactured by bending a metal plate having high thermal conductivity such as an aluminum alloy or a copper alloy. The second substrate base 46 may be manufactured by injection molding a high heat conductive resin such as nylon resin or polycarbonate resin of high heat conductive grade.
　図４に示すように、第１基板台４１は、基板おさえ部４２を前側に向けて、放熱板３１の底板部３４の上部に固定されている。第２基板台４６は、伝熱部４９が表示パネル１２の下辺の下側近傍に位置するように固定されている。 As shown in FIG. 4, the first board base 41 is fixed to the upper part of the bottom plate part 34 of the heat radiating plate 31 with the board holding part 42 facing the front side. The second substrate base 46 is fixed so that the heat transfer section 49 is located near the lower side of the lower side of the display panel 12.
　図９に示すように、ドライバ基板１７はベース部２０内で前方、すなわち表示面側に向けて屈曲させてある。図４に示すように、表示装置１０の中央部において、ドライバ制御基板１９の端部は基板おさえ部４２に保持される。ドライバ基板１７は、ドライバ１８が実装された部分の裏側で、伝熱部４９に接触する。 As shown in FIG. 9, the driver substrate 17 is bent forward in the base portion 20, that is, toward the display surface. As shown in FIG. 4, the end portion of the driver control board 19 is held by the board holding section 42 at the center of the display device 10. The driver board 17 contacts the heat transfer section 49 on the back side of the part where the driver 18 is mounted.
　図３に示すように、スピーカ載置部４８の上には、スピーカ２２が固定される。メイン基板載置部４７の上には、入力基板２３、制御基板２４等が固定される。さらにベース部２０の内部には、各基板等を接続する配線等が収容される。 As shown in FIG. 3, the speaker 22 is fixed on the speaker mounting portion 48. On the main board mounting portion 47, the input board 23, the control board 24, and the like are fixed. Furthermore, the wiring etc. which connect each board | substrate etc. are accommodated in the inside of the base part 20. FIG.
　入力基板２３は、外部からの映像信号の入力を受け付けて、所定の信号処理を行う基板である。制御基板２４は、入力基板２３から出力された信号を受け付けて、ドライバ制御基板１９を制御する信号を出力する基板である。制御基板２４は、表示パネル１２を制御する制御部の一例である。 The input board 23 is a board that receives a video signal input from the outside and performs predetermined signal processing. The control board 24 is a board that receives a signal output from the input board 23 and outputs a signal for controlling the driver control board 19. The control board 24 is an example of a control unit that controls the display panel 12.
　表示装置１０の動作の概要を説明する。照明基板１５に搭載された白色ＬＥＤからの出射光は、導光板１４の下面に入射する。入射した光は、導光板１４の作用により、平面光になって導光板１４の前側の広面から放射される。放射された平面光は、表示パネル１２の背面から前側に透過する。すなわち導光板１４と照明基板１５とは、表示パネル１２を背面から照明するバックライトを構成している。 An outline of the operation of the display device 10 will be described. Light emitted from the white LED mounted on the illumination board 15 enters the lower surface of the light guide plate 14. The incident light is radiated from the wide surface on the front side of the light guide plate 14 as planar light by the action of the light guide plate 14. The emitted planar light is transmitted from the back surface of the display panel 12 to the front side. That is, the light guide plate 14 and the illumination substrate 15 constitute a backlight that illuminates the display panel 12 from the back.
　照明基板１５は、表示パネル１２の後側を照明する本実施の形態の照明部の一例である。照明基板１５には、白色ＬＥＤの代わりに有機ＥＬ（ElectroLuminescence）素子等の発光体が実装されていても良い。照明部は、冷陰極管等の発光体であっても良い。 The illumination board 15 is an example of the illumination unit of the present embodiment that illuminates the rear side of the display panel 12. A light emitter such as an organic EL (ElectroLuminescence) element may be mounted on the illumination board 15 instead of the white LED. The illumination unit may be a light emitter such as a cold cathode tube.
　なお、導光板１４と照明基板１５とを組み合わせた、エッジライト方式のバックライトの代わりに、表示パネル１２の後側に多数の白色ＬＥＤと拡散シート等を配置したいわゆる直下型のバックライトを使用しても良い。 In addition, instead of the edge light type backlight combining the light guide plate 14 and the illumination substrate 15, a so-called direct type backlight in which a large number of white LEDs and a diffusion sheet are arranged on the rear side of the display panel 12 is used. You may do it.
　入力基板２３から入力された映像信号に基づいて、制御基板２４がドライバ制御基板１９を制御する信号を接続する。ドライバ制御基板１９の制御に基づいて、ドライバ１８が表示パネル１２を構成する各画素を制御する。これにより、表示パネル１２を構成する各画素がバックライトから放射された光を透過および遮蔽する。バックライトの作用により、ユーザは表示パネル１２に表示される映像を視認することができる。 Based on the video signal input from the input board 23, the control board 24 connects a signal for controlling the driver control board 19. Based on the control of the driver control board 19, the driver 18 controls each pixel constituting the display panel 12. Thereby, each pixel which comprises the display panel 12 permeate | transmits and shields the light radiated | emitted from the backlight. The user can visually recognize the video displayed on the display panel 12 by the action of the backlight.
　なお、入力基板２３および制御基板２４の機能の一部または全部を、表示装置１０の外部に設けた機器が実行しても良い。 Note that some or all of the functions of the input board 23 and the control board 24 may be executed by a device provided outside the display device 10.
　表示装置１０の放熱について説明する。表示装置１０を構成する部品のうち、照明基板１５およびドライバ１８は特に発熱量の多い部品である。それぞれの部品から発生する熱を放熱する構造について説明する。 The heat dissipation of the display device 10 will be described. Among the components constituting the display device 10, the illumination board 15 and the driver 18 are components that generate a large amount of heat. A structure for radiating heat generated from each component will be described.
　照明基板１５から発生した熱は、放熱板３１を介して後面筐体１６および下面筐体２１に伝達される。伝達された熱は、後面筐体１６および下面筐体２１からさらに上面筐体２６、側面筐体１３、および表示装置１０の周囲の床、壁、空中等に拡散する。以上により、照明基板１５で発生した熱は、表示装置１０の外部に放熱され、照明基板１５の過熱が防止される。 The heat generated from the illumination board 15 is transmitted to the rear casing 16 and the lower casing 21 through the heat radiating plate 31. The transmitted heat is further diffused from the rear casing 16 and the lower casing 21 to the upper casing 26, the side casing 13, and the floor, wall, and air around the display device 10. As described above, the heat generated in the illumination board 15 is dissipated to the outside of the display device 10 and the illumination board 15 is prevented from being overheated.
　ドライバ１８から発生した熱は、ドライバ基板１７を介して伝熱部４９に伝達される。伝達された熱は、第２基板台４６全体に拡散すると共に、熱伝導性にすぐれた第４おもり５４を介して下面筐体２１に伝わり、表示装置１０の周囲の床、壁、空中等に拡散する。以上により、ドライバ１８で発生した熱は、表示装置１０の外部に放熱され、ドライバ１８の過熱が防止される。 The heat generated from the driver 18 is transmitted to the heat transfer section 49 via the driver board 17. The transmitted heat is diffused throughout the second substrate base 46 and is transmitted to the lower surface casing 21 via the fourth weight 54 having excellent thermal conductivity, and is transmitted to the floor, wall, air, etc. around the display device 10. Spread. As described above, the heat generated in the driver 18 is radiated to the outside of the display device 10 and the driver 18 is prevented from being overheated.
　なお、ドライバ基板１７または伝熱部４９に、少量の熱伝導グリースを塗布しても良い。このようにして熱伝導を補助することにより、さらに効率良く放熱を行うことができる。 Note that a small amount of heat conductive grease may be applied to the driver board 17 or the heat transfer section 49. By assisting heat conduction in this way, heat can be radiated more efficiently.
　表示装置１０の転倒防止について説明する。前述のように、本実施の形態の表示装置１０はＬ字型であるので表示部１１の後面を壁面に密着するように設置することが可能である。しかし、ここでは表示装置１０が壁面から離れた場所に設置されている場合について説明する。 The prevention of the display device 10 from falling will be described. As described above, since the display device 10 of the present embodiment is L-shaped, it can be installed so that the rear surface of the display unit 11 is in close contact with the wall surface. However, the case where the display apparatus 10 is installed in a place away from the wall surface will be described here.
　図４を使用して説明したように、ベース部２０の前側に第１おもり５１および第４おもり５４が固定されている。これらのおもりにより、表示装置１０の重心はおもりが無い場合に比べて前側に位置する。したがって、表示部１１に後ろ向きの力が加わった場合であっても、表示装置１０が後ろに転倒することを防止できる。 As described with reference to FIG. 4, the first weight 51 and the fourth weight 54 are fixed to the front side of the base portion 20. Due to these weights, the center of gravity of the display device 10 is located on the front side compared to the case where there is no weight. Therefore, even if a backward force is applied to the display unit 11, the display device 10 can be prevented from falling backward.
　外力が加わった場合の放熱板３１の変形について、シミュレーション結果に基づいて説明する。図１４は、シミュレーションモデルを示す説明図である。図１５は、比較例のシミュレーションモデルを示す説明図である。 Deformation of the heat sink 31 when an external force is applied will be described based on simulation results. FIG. 14 is an explanatory diagram showing a simulation model. FIG. 15 is an explanatory diagram showing a simulation model of a comparative example.
　図１４は、本実施の形態の表示装置１０の変形をシミュレーションするモデルを示す。図１４に示すモデルにおいては、放熱板３１は７本の第１ねじ６１、７本の第２ねじ６２（図４参照）、２本の第３ねじ６３（図１０参照）および２本の第４ねじ６４（図１０参照）により下面筐体２１に固定されている。 FIG. 14 shows a model for simulating deformation of the display device 10 of the present embodiment. In the model shown in FIG. 14, the heat radiating plate 31 includes seven first screws 61, seven second screws 62 (see FIG. 4), two third screws 63 (see FIG. 10), and two first screws 61. It is fixed to the lower case 21 by four screws 64 (see FIG. 10).
　図１５は、底板部３４に照明基板１５を固定する比較例の表示装置１０の変形をシミュレーションするモデルを示す。図１５に示すモデルにおいては、放熱板３１は７本の第１ねじ６１、２本の第３ねじ６３および２本の第４ねじ６４により下面筐体２１に固定されている。 FIG. 15 shows a model for simulating the deformation of the display device 10 of the comparative example in which the illumination board 15 is fixed to the bottom plate portion 34. In the model shown in FIG. 15, the heat radiating plate 31 is fixed to the lower surface casing 21 by seven first screws 61, two third screws 63 and two fourth screws 64.
　図１６は、本実施の形態のシミュレーション結果を示す説明図である。図１７は、比較例のシミュレーション結果を示す説明図である。いずれの場合も、表示部１１の上辺の中央部に、後ろ向きに１００ニュートンの力を加えた場合の変形をシミュレーションしている。 FIG. 16 is an explanatory diagram showing a simulation result of the present embodiment. FIG. 17 is an explanatory diagram illustrating a simulation result of the comparative example. In either case, a deformation is simulated when a force of 100 Newton is applied backward to the center of the upper side of the display unit 11.
　図１６は、図１４中にＡで示す面、すなわち保持部３５の前側の端面の変形のシミュレーション結果である。図１７は、図１５中にＢで示す面の変形のシミュレーション結果である。図１６および図１７は、同一の縮尺で変形量を上下方向に拡大して示す。 FIG. 16 shows a simulation result of deformation of the surface indicated by A in FIG. 14, that is, the front end surface of the holding portion 35. FIG. 17 shows a simulation result of the deformation of the surface indicated by B in FIG. 16 and 17 show the deformation amount enlarged in the vertical direction at the same scale.
　図１６に示すように、本実施の形態の保持部３５は、力を加えた場合であっても平らな状態である。放熱板３１と下面筐体２１とを固定する底板部３４とは別に保持部３５を設けてあるため、第１ねじ６１等で固定した部分の影響が保持部３５に伝わりにくいからである。一方、図１７に示すように比較例においては、照明基板１５を載せた面は波打つように変形する。比較例においては、第１ねじ６１等で固定した部分の影響が、照明基板１５を載せた面に直接伝わるからである。 As shown in FIG. 16, the holding portion 35 of the present embodiment is in a flat state even when force is applied. This is because the holding portion 35 is provided separately from the bottom plate portion 34 that fixes the heat radiating plate 31 and the lower surface casing 21, and therefore the influence of the portion fixed by the first screw 61 or the like is not easily transmitted to the holding portion 35. On the other hand, as shown in FIG. 17, in the comparative example, the surface on which the illumination board 15 is placed is deformed so as to wave. This is because in the comparative example, the influence of the portion fixed by the first screw 61 or the like is directly transmitted to the surface on which the illumination board 15 is placed.
　なお、前述のとおり後板部３２は、保持部３５の上側に接する部分に、他の部分よりも肉厚になった厚肉部３７を有するため、この部分では変形を生じにくい。そのため、外力による変形は、主に保持部３５と底板部３４との間の部分で発生し、表示部１１内の部品間の位置ずれ等は生じにくい。 Note that, as described above, the rear plate portion 32 has the thick portion 37 that is thicker than the other portions in the portion that is in contact with the upper side of the holding portion 35, so that deformation is unlikely to occur in this portion. For this reason, deformation due to external force mainly occurs at a portion between the holding portion 35 and the bottom plate portion 34, and misalignment between components in the display portion 11 hardly occurs.
　比較例においては、照明基板１５も波打つように変形することにより、断線等の破損が生じるおそれがある。さらに、照明基板１５と導光板１４の端面とが接触することによる傷、破損および変形が生じるおそれもある。変形等により照明基板１５と導光板１４との位置関係がずれた場合には、輝度ムラ等による画質の低下が発生する。 In the comparative example, there is a possibility that breakage such as disconnection may occur due to deformation of the illumination board 15 so as to wave. Furthermore, there is a possibility that scratches, breakage, and deformation due to contact between the illumination substrate 15 and the end face of the light guide plate 14 may occur. When the positional relationship between the illumination substrate 15 and the light guide plate 14 is shifted due to deformation or the like, the image quality is deteriorated due to luminance unevenness or the like.
　本実施の形態によると、表示部１１の後面が壁面に密着するように設置できる表示装置１０を提供することができる。さらに、表示パネル１２を制御する各種基板等をベース部２０に配置するので、表示部１１を薄くすることができる。以上により、デッドスペースを発生させず、部屋の空間を有効に活用できる表示装置１０を提供することができる。 According to the present embodiment, it is possible to provide the display device 10 that can be installed so that the rear surface of the display unit 11 is in close contact with the wall surface. Furthermore, since the various substrates etc. which control the display panel 12 are arrange | positioned in the base part 20, the display part 11 can be made thin. As described above, it is possible to provide the display device 10 that can effectively use the space of the room without generating a dead space.
　本実施の形態によると、第１おもり５１および第４おもり５４により重心が表示パネル１２よりも前方に位置するため、外力により転倒しにくい表示装置１０を提供することができる。本実施の形態によると、照明基板１５を保持する保持部３５が、下面筐体２１と固定する底板部３４とは別に設けられているため、外力による照明基板１５の歪みおよび破損等による画質低下が生じにくい表示装置１０を提供することができる。 According to this embodiment, since the center of gravity is located in front of the display panel 12 by the first weight 51 and the fourth weight 54, it is possible to provide the display device 10 that is not easily toppled by an external force. According to the present embodiment, since the holding portion 35 that holds the illumination substrate 15 is provided separately from the bottom plate portion 34 that is fixed to the lower surface casing 21, the image quality is deteriorated due to distortion or breakage of the illumination substrate 15 due to external force. Therefore, it is possible to provide the display device 10 that is less likely to cause the problem.
　本実施の形態によると、側面筐体１３と放熱板３１とが面で接触した状態で固定された歪みにくい枠体が構成されるため、外力を受けた場合であっても表示パネル１２、導光板１４および後面筐体１６等の薄い部材が変形または破壊することを防ぐことができる。また、放熱板３１が構造部材を兼ねることにより、少ない部品数で表示装置１０を構成することができる。 According to the present embodiment, since the frame body which is fixed in a state where the side housing 13 and the heat radiating plate 31 are in contact with each other is configured, the display panel 12 and the conductive plate are guided even when receiving external force. Thin members such as the optical plate 14 and the rear housing 16 can be prevented from being deformed or broken. Further, since the heat radiating plate 31 also serves as a structural member, the display device 10 can be configured with a small number of components.
　本実施の形態によると、放熱板３１と下面筐体２１とを固定する底板部３４とは別に保持部３５を設けてあるため、外力を受けた場合であっても照明基板の波打つような変形による破損および画質の低下が生じにくい表示装置１０を提供することができる。 According to the present embodiment, since the holding portion 35 is provided separately from the bottom plate portion 34 that fixes the heat radiating plate 31 and the lower surface casing 21, the illumination substrate is undulated even when it receives an external force. Therefore, it is possible to provide the display device 10 that is less likely to be damaged by the above and a deterioration in image quality.
　本実施の形態によると、照明基板１５およびドライバ１８が発生する熱を効率良く放熱できる表示装置１０を提供することができる。これにより、熱による各部品の損傷、劣化、誤作動等を防止することができる。 According to the present embodiment, it is possible to provide the display device 10 that can efficiently dissipate the heat generated by the illumination board 15 and the driver 18. Thereby, damage, deterioration, malfunction, etc. of each component by heat can be prevented.
　本実施の形態によると、図２を使用して説明したように、ベース部２０の前側の面は、後ろ下向きの傾斜を有する。そのため、表示装置１０を前側からみると、ベース部２０の存在は目立たず、表示パネル１２と壁とが一体化したような印象を与えるデザインの表示装置１０を提供することができる。 According to the present embodiment, as described with reference to FIG. 2, the front surface of the base portion 20 has a rearward downward slope. Therefore, when the display device 10 is viewed from the front side, the presence of the base portion 20 is not conspicuous, and the display device 10 having a design that gives the impression that the display panel 12 and the wall are integrated can be provided.
　表示装置１０をテレビジョン受信機として使用する場合には、入力基板２３にテレビジョン放送のアンテナを接続するアンテナ端子およびテレビジョン放送の電波を受信するチューナ回路を備えたテレビジョン受信部を搭載する。テレビジョン受信部が受信した放送信号に所定の処理を行い、映像信号と音声信号とに分離する。映像信号に基づき表示パネル１２に映像を表示する。音声信号はスピーカ２２から出力する。なお、入力基板２３に、アンテナ端子の代わりにテレビジョン放送受信用のアンテナを搭載しても良い。 When the display device 10 is used as a television receiver, a television receiver having an antenna terminal for connecting a television broadcast antenna and a tuner circuit for receiving television broadcast radio waves is mounted on the input board 23. . A predetermined process is performed on the broadcast signal received by the television receiver, and the broadcast signal is separated into a video signal and an audio signal. An image is displayed on the display panel 12 based on the image signal. The audio signal is output from the speaker 22. Note that an antenna for receiving a television broadcast may be mounted on the input board 23 instead of the antenna terminal.
　このように、表示装置１０をテレビジョン受信機として使用することにより、後板部３２、底板部３４および保持部３５を有する放熱板３１と、照明基板１５とを備えるテレビジョン受信機を提供することができる。後板部３２は、前面に映像を表示する表示パネル１２の後側に配置されている。底板部３４は、後板部３２の縁から表示パネル１２側に突出する。保持部３５は、後板部３２から底板部３４と同じ向きに底板部３４よりも短く突出する。照明基板１５は、放熱板３１の保持部３５に保持され、表示パネル１２の後側を照明する。 In this way, by using the display device 10 as a television receiver, a television receiver including the heat sink 31 having the rear plate portion 32, the bottom plate portion 34, and the holding portion 35, and the illumination substrate 15 is provided. be able to. The rear plate portion 32 is disposed on the rear side of the display panel 12 that displays an image on the front surface. The bottom plate portion 34 protrudes from the edge of the rear plate portion 32 toward the display panel 12 side. The holding portion 35 protrudes from the rear plate portion 32 in the same direction as the bottom plate portion 34 so as to be shorter than the bottom plate portion 34. The illumination board 15 is held by the holding part 35 of the heat sink 31 and illuminates the rear side of the display panel 12.
　表示装置１０をテレビジョン受信機として使用することにより、側面筐体１３、後板部３２および放熱板３１を備えるテレビジョン受信機を提供することができる。側面筐体１３は、前面に映像を表示する矩形の表示パネル１２の側面の辺である第１辺および第３辺と、天側の辺である第２辺とを覆う。後板部３２は、表示パネル１２の後面側に配置されている。放熱板３１は、後板部３２の第１辺側の縁および第３辺側の縁に沿って表示パネル側１２に突出し、側面筐体１３の内面に固定された側板部３３を有する。 By using the display device 10 as a television receiver, it is possible to provide a television receiver including the side housing 13, the rear plate portion 32, and the heat radiating plate 31. The side housing 13 covers a first side and a third side that are sides of the rectangular display panel 12 that displays an image on the front surface, and a second side that is a top side. The rear plate portion 32 is disposed on the rear surface side of the display panel 12. The heat radiating plate 31 has a side plate portion 33 that protrudes toward the display panel side 12 along the first side edge and the third side edge of the rear plate portion 32 and is fixed to the inner surface of the side housing 13.
　表示装置１０をテレビジョン受信機として使用することにより、表示パネル１２と、軟性基板１７と、集積回路１８と、伝熱部材４６とを備えるテレビジョン受信機を提供することができる。表示パネル１２は、映像を表示する表示面を前面に有する。軟性基板１７は、表示パネル１２の縁に外向きに接続され、表示面側に屈曲させてある。集積回路１８は、軟性基板１７に固定されて前記表示パネルよりも前側に配置される。伝熱部材４６は、表示パネル１２の縁よりも外側に配置されており、集積回路１８または軟性基板１７の集積回路１８が固定された部分の裏側に接触する。 By using the display device 10 as a television receiver, a television receiver including the display panel 12, the flexible substrate 17, the integrated circuit 18, and the heat transfer member 46 can be provided. The display panel 12 has a display surface for displaying images on the front surface. The flexible substrate 17 is connected outward to the edge of the display panel 12 and is bent toward the display surface. The integrated circuit 18 is fixed to the flexible substrate 17 and disposed on the front side of the display panel. The heat transfer member 46 is disposed outside the edge of the display panel 12 and contacts the back side of the part to which the integrated circuit 18 or the integrated circuit 18 of the flexible substrate 17 is fixed.
　放熱板３１と下面筐体２１とを固定する底板部３４とは別に保持部３５を設けてあるため、外力を受けた場合であっても照明基板１５の波打つような変形による破損および画質の低下が生じにくいテレビジョン受信機を提供することができる。 Since the holding portion 35 is provided separately from the bottom plate portion 34 that fixes the heat radiating plate 31 and the lower surface casing 21, even when an external force is applied, the lighting substrate 15 is damaged due to undulating deformation and the image quality is deteriorated. Thus, it is possible to provide a television receiver in which the occurrence of noise is difficult to occur.
　以上の構成により、表示部１１の後側を壁面に密着するように設置することが可能なテレビジョン受信機を提供することができる。さらに、テレビジョン受信機内のドライバ１８の過熱を防止することができる。 With the above configuration, it is possible to provide a television receiver that can be installed so that the rear side of the display unit 11 is in close contact with the wall surface. Furthermore, overheating of the driver 18 in the television receiver can be prevented.
［実施の形態２］
　本実施の形態は、後面筐体１６が下板部１６２を有さない表示装置１０に関する。なお、実施の形態１と共通する部分については、説明を省略する。 [Embodiment 2]
The present embodiment relates to the display device 10 in which the rear housing 16 does not have the lower plate portion 162. Note that description of portions common to the first embodiment is omitted.
　図１８は、実施の形態２の表示装置１０の中央部の縦断面拡大図である。図１８においては、放熱板３１、下面筐体２１、後面筐体１６、照明基板１５および導光板１４以外の部品は図示を省略する。 FIG. 18 is an enlarged vertical cross-sectional view of the central portion of the display device 10 according to the second embodiment. In FIG. 18, components other than the heat radiating plate 31, the lower case 21, the rear case 16, the illumination board 15, and the light guide plate 14 are not shown.
　後面筐体１６は下板部１６２を有さない平板状である。放熱板３１の底板部３４と、ベース部２０の下面筐体２１とは直接接している。後面筐体１６と後板部３２とは、両面テープまたは接着剤により固定される。後面筐体１６と後板部３２とは、図示しないネジ等により固定されても良い。 The rear housing 16 has a flat plate shape without the lower plate portion 162. The bottom plate portion 34 of the heat radiating plate 31 and the lower surface casing 21 of the base portion 20 are in direct contact. The rear housing 16 and the rear plate portion 32 are fixed with a double-sided tape or an adhesive. The rear housing 16 and the rear plate portion 32 may be fixed by screws or the like (not shown).
　底板部３４と下面筐体２１とは、たとえば摩擦攪拌接合、スポット溶接またはリベット等により固定されても良い。 The bottom plate portion 34 and the lower surface casing 21 may be fixed by, for example, friction stir welding, spot welding, rivets, or the like.
　本実施の形態によると、後面筐体１６は平板であるので、部品の状態での保管および取り扱いが容易である。本実施の形態によると、底板部３４と下面筐体２１とが直接接するので、摩擦攪拌接合、スポット溶接等の接合技術を利用することができる。 According to the present embodiment, since the rear housing 16 is a flat plate, it can be easily stored and handled in a component state. According to the present embodiment, since the bottom plate portion 34 and the lower surface casing 21 are in direct contact with each other, a joining technique such as friction stir welding or spot welding can be used.
［実施の形態３］
　本実施の形態は、放熱板３１と後面筐体１６とを一体化した表示装置１０に関する。なお、実施の形態１と共通する部分については、説明を省略する。 [Embodiment 3]
The present embodiment relates to the display device 10 in which the heat radiating plate 31 and the rear housing 16 are integrated. Note that description of portions common to the first embodiment is omitted.
　図１９は、実施の形態３の表示装置１０の中央部の縦断面図である。本実施の形態の後板部３２は、表示装置１０の背面を覆う外装部材を兼ねる。 FIG. 19 is a longitudinal sectional view of the central portion of the display device 10 according to the third embodiment. The rear plate portion 32 of the present embodiment also serves as an exterior member that covers the back surface of the display device 10.
　本実施の形態によると、放熱板３１の後板部３２を上方に延ばして後面筐体１６として
利用しているので、部品数が少なく、放熱効果が高い表示装置１０を提供することができる。 According to this embodiment, since the rear plate portion 32 of the heat radiating plate 31 is extended upward and used as the rear housing 16, the display device 10 having a small number of components and a high heat radiating effect can be provided.
［実施の形態４］
　本実施の形態は、放熱板３１の保持部３５と底板部３４との間に、後板部３２の一部を薄くした薄肉部３８を有する表示装置１０に関する。なお、実施の形態１と共通する部分については、説明を省略する。 [Embodiment 4]
The present embodiment relates to the display device 10 having a thin portion 38 in which a part of the rear plate portion 32 is thinned between the holding portion 35 and the bottom plate portion 34 of the heat radiating plate 31. Note that description of portions common to the first embodiment is omitted.
　図２０は、実施の形態４の表示装置１０の中央部の縦断面拡大図である。図２０においては、放熱板３１、下面筐体２１、後面筐体１６、照明基板１５および導光板１４以外の部品は図示を省略する。 FIG. 20 is an enlarged vertical cross-sectional view of the central portion of the display device 10 according to the fourth embodiment. In FIG. 20, components other than the heat radiating plate 31, the lower case 21, the rear case 16, the illumination board 15, and the light guide plate 14 are not shown.
　後板部３２の保持部３５と底板部３４との間には、後板部３２の一部を薄くした薄肉部３８が設けられている。表示部１１に前後方向の外力が加えられた場合には、薄肉部３８の近傍で後板部３２が弾性変形する。導光板１４および照明基板１５は一体となって前後方向に傾くが、相互の位置関係は変化しない。 Between the holding part 35 and the bottom plate part 34 of the rear plate part 32, a thin part 38 in which a part of the rear plate part 32 is thinned is provided. When an external force in the front-rear direction is applied to the display part 11, the rear plate part 32 is elastically deformed in the vicinity of the thin part 38. The light guide plate 14 and the illumination board 15 are integrally tilted in the front-rear direction, but the mutual positional relationship does not change.
　外力が加えられなくなった場合には、後板部３２の形状が元の状態に戻る。導光板１４と照明基板１５との位置関係が変化しないので、表示部１１に加えられた外力により、導光板１４と照明基板１５との位置関係の変化および両者の衝突等による破損を防止することができる。 When the external force is no longer applied, the shape of the rear plate part 32 returns to the original state. Since the positional relationship between the light guide plate 14 and the illumination substrate 15 does not change, the external force applied to the display unit 11 can prevent damage due to a change in the positional relationship between the light guide plate 14 and the illumination substrate 15 and collision between the two. Can do.
　本実施の形態によると、薄肉部３８が存在することにより導光板１４と照明基板１５との間の位置ずれ等を防止することができる。さらに、放熱板３１を軽量化することができるため、軽量な表示装置１０を提供することが可能である。 According to the present embodiment, the presence of the thin portion 38 can prevent a positional shift between the light guide plate 14 and the illumination substrate 15. Furthermore, since the heat sink 31 can be reduced in weight, the lightweight display device 10 can be provided.
　各実施例で記載されている技術的特徴（構成要件）はお互いに組合せ可能であり、組み合わせすることにより、新しい技術的特徴を形成することができる。
　今回開示された実施の形態はすべての点で例示であって、制限的なものでは無いと考えられるべきである。本発明の範囲は、上記した意味では無く、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The technical features (components) described in each embodiment can be combined with each other, and new technical features can be formed by combining them.
The embodiments disclosed herein are illustrative in all respects and should not be considered as restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meaning described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　以上のように、本発明にかかる表示装置１０は、前面に映像を表示する表示パネル１２の後側に配置された後板部３２、前記後板部３２の縁から前記表示パネル１２側に突出する底板部３４、および、前記後板部３２から前記底板部３４と同じ向きに前記底板部３４よりも短く突出する保持部３５を有する放熱板３１と、前記放熱板３１の前記保持部３５に保持され、前記表示パネル１２の後側を照明する照明部１５とを備える。 As described above, the display device 10 according to the present invention protrudes toward the display panel 12 from the rear plate portion 32 disposed on the rear side of the display panel 12 that displays an image on the front surface and the edge of the rear plate portion 32. A heat sink 31 having a bottom plate 34, a holding plate 35 projecting from the rear plate 32 in the same direction as the bottom plate 34 shorter than the bottom plate 34, and the holding portion 35 of the heat sink 31. And an illumination unit 15 that illuminates the rear side of the display panel 12.
　本発明にあっては、照明部１５を保持する保持部３５が、下面筐体２１と固定する底板部３４とは別に設けられているため、外力による照明部１５の歪みおよび破損等による画質低下が生じにくい表示装置１０を提供することができる。 In the present invention, since the holding portion 35 that holds the illumination portion 15 is provided separately from the bottom plate portion 34 that is fixed to the lower surface casing 21, the image quality is deteriorated due to distortion or breakage of the illumination portion 15 due to external force. Therefore, it is possible to provide the display device 10 that is less likely to cause the problem.
　本発明にかかる表示装置１０は、前記後板部３２は、前記保持部３５の基端部の前記底板部３４と反対側に、他の部分よりも厚い厚肉部３７を有する。 In the display device 10 according to the present invention, the rear plate portion 32 has a thick portion 37 that is thicker than other portions on the opposite side of the base plate portion 34 of the holding portion 35 from the bottom plate portion 34.
　本発明にあっては、保持部３５の上側に接する部分に、他の部分よりも肉厚になった厚肉部３７を有するため、この部分では変形を生じにくい。そのため、外力による変形は、主に保持部３５と底板部３４との間の部分で発生し、表示部１１内の部品間の位置ずれ等は生じにくい。 In the present invention, the portion that is in contact with the upper side of the holding portion 35 has the thick portion 37 that is thicker than the other portions, so that deformation is unlikely to occur in this portion. For this reason, deformation due to external force mainly occurs at a portion between the holding portion 35 and the bottom plate portion 34, and misalignment between components in the display portion 11 hardly occurs.
　本発明にかかる表示装置１０は、前記後板部３２は、前記保持部３５と前記底板部３４との間に、他の部分よりも薄い薄肉部３８を有する。 In the display device 10 according to the present invention, the rear plate portion 32 includes a thin portion 38 between the holding portion 35 and the bottom plate portion 34 that is thinner than other portions.
　本発明にあっては、薄肉部３８が存在することにより導光板１４と照明基板１５との間の位置ずれ等を防止することができる。さらに、放熱板３１を軽量化することができるため、軽量な表示装置１０を提供することが可能である。 In the present invention, the presence of the thin-walled portion 38 can prevent misalignment between the light guide plate 14 and the illumination substrate 15. Furthermore, since the heat sink 31 can be reduced in weight, the lightweight display device 10 can be provided.
　本発明にかかる表示装置１０は、表示パネル１２の後面に配置され、一つの端面が前記照明部１５と対向する導光板１４を有する。 The display device 10 according to the present invention includes a light guide plate 14 disposed on the rear surface of the display panel 12 and having one end surface facing the illumination unit 15.
　本発明にあっては、エッジライト方式のバックライトを有する表示装置１０を提供することが可能である。 In the present invention, it is possible to provide the display device 10 having an edge light type backlight.
　本発明にかかる表示装置１０は、前記表示パネル１２を有する矩形板状の表示部１１と、前記底板部３４を収容し、前記表示部１１の一辺から前記表示パネル１２の表示面側に突出して、前記表示部１１と共にＬ字型を形成する板状のベース部２０とを備える。 The display device 10 according to the present invention accommodates a rectangular plate-like display unit 11 having the display panel 12 and the bottom plate unit 34, and protrudes from one side of the display unit 11 to the display surface side of the display panel 12. And a plate-like base portion 20 that forms an L shape together with the display portion 11.
　本発明にあっては、後ろ側を壁面等に沿うように設置することにより、デッドスペースを発生させず、部屋の空間を有効に活用することが可能なＬ字型の表示装置１０を提供することが可能である。 According to the present invention, an L-shaped display device 10 that can effectively use the space of a room without generating a dead space by providing the rear side along a wall surface or the like is provided. It is possible.
　本発明にかかる表示装置１０は、矩形の前記表示パネル１２の側面の辺である第１辺および第３辺と、天側の辺である第２辺とを覆う側面筐体１３を備え、前記放熱板３１は、前記後板部３２、および、前記後板部３２の前記第１辺側の縁および前記第３辺側の縁に沿って前記表示パネル１２側に突出し、前記側面筐体１３の内面に固定された側板部３３を有する。 The display device 10 according to the present invention includes a side housing 13 that covers a first side and a third side that are side edges of the rectangular display panel 12, and a second side that is a top side. The heat radiating plate 31 protrudes toward the display panel 12 along the first plate side edge and the third side edge of the rear plate portion 32 and the rear plate portion 32, and the side housing 13. The side plate portion 33 is fixed to the inner surface.
　本発明にあっては、側面筐体１３と放熱板３１とが面で接触した状態で固定された歪みにくい枠体が構成されるため、外力を受けた場合であっても表示パネル１２、導光板１４および後面筐体１６等の薄い部材が変形または破壊することを防ぐことができる。また、放熱板３１が構造部材を兼ねることにより、少ない部品数で表示装置１０を構成することができる。 In the present invention, since the frame body that is fixed in a state where the side housing 13 and the heat radiating plate 31 are in contact with each other is configured, the display panel 12, the lead plate 12, even when subjected to external force. Thin members such as the optical plate 14 and the rear housing 16 can be prevented from being deformed or broken. Further, since the heat radiating plate 31 also serves as a structural member, the display device 10 can be configured with a small number of components.
　本発明にかかる表示装置１０は、前記表示パネル１２の縁に外向きに接続され、前記表示パネル１２の表示面側に屈曲させた軟性基板１７と、前記軟性基板１７に固定されて前記表示パネル１２よりも前側に配置された集積回路１８と、前記表示パネル１２の縁よりも外側に配置されており、前記集積回路１８または前記軟性基板１７の前記集積回路１８が固定された部分の裏側に接触する伝熱部材４６とを備える。 The display device 10 according to the present invention is connected outwardly to the edge of the display panel 12 and is bent to the display surface side of the display panel 12, and is fixed to the flexible substrate 17 and fixed to the display panel. The integrated circuit 18 disposed on the front side of the display panel 12 and the edge of the display panel 12 are disposed on the back side of the portion of the integrated circuit 18 or the flexible substrate 17 to which the integrated circuit 18 is fixed. A heat transfer member 46 in contact therewith.
　本発明にあっては、集積回路１８が発生する熱を効率良く放熱できる表示装置１０を提供することができる。これにより、熱による集積回路およびその周辺に配置された部品の損傷、劣化、誤作動等を防止することができる。 In the present invention, it is possible to provide the display device 10 that can efficiently dissipate the heat generated by the integrated circuit 18. Thereby, damage, deterioration, malfunction, etc. of the integrated circuit and the components arranged in the vicinity thereof due to heat can be prevented.
　本発明にかかるテレビジョン受信機は、上述のいずれか一つに記載の表示装置１０と、テレビジョン放送を受信する受信部とを備え、前記受信部にて受信したテレビジョン放送に基づいて、前記表示装置１０に映像を表示するようにしてある。 A television receiver according to the present invention includes the display device 10 according to any one of the above and a receiving unit that receives a television broadcast, and based on the television broadcast received by the receiving unit, An image is displayed on the display device 10.
　本発明にあっては、外力による照明部１５の歪みおよび破損等による画質低下が生じにくいテレビジョン装置を提供することができる。 According to the present invention, it is possible to provide a television apparatus in which image quality deterioration due to distortion and breakage of the illumination unit 15 due to external force is unlikely to occur.
　１０　表示装置
　１１　表示部
　１２　表示パネル
　１３　側面筐体
　１３１　前側縁
　１３２　後側縁
　１４　導光板
　１５　照明基板　（照明部）
　１６　後面筐体
　１６１　背板部
　１６２　下板部
　１７　ドライバ基板　（軟性基板）
　１８　ドライバ　（集積回路）
　１９　ドライバ制御基板
　２０　ベース部
　２１　下面筐体
　２１１　底部
　２１２　縁部
　２２　スピーカ
　２３　入力基板
　２４　制御基板
　２５　化粧板
　２６　上面筐体
　２６１　箱状部
　２６２　外縁部
　２７　補強体
　２７１　第１板部
　２７２　第２板部
　２７３　第３板部
　３１　放熱板
　３２　後板部
　３３　側板部
　３４　底板部
　３５　保持部
　３７　厚肉部
　３８　薄肉部
　４１　第１基板台
　４２　基板おさえ部
　４３　階段板部
　４６　第２基板台　（伝熱部材）
　４７　メイン基板載置部
　４８　スピーカ載置部
　４９　伝熱部
　５１　第１おもり
　５４　第４おもり
　６１　第１ねじ
　６２　第２ねじ
　６３　第３ねじ
　６４　第４ねじ
　７１　第１孔
　７２　第２孔
　７３　第３孔
　７４　第４孔
　７５　第５孔 DESCRIPTION OF SYMBOLS 10 Display apparatus 11 Display part 12 Display panel 13 Side surface housing 131 Front side edge 132 Rear side edge 14 Light guide plate 15 Illumination board (illumination part)
16 Rear housing 161 Back plate portion 162 Lower plate portion 17 Driver substrate (soft substrate)
18 Driver (Integrated circuit)
DESCRIPTION OF SYMBOLS 19 Driver control board 20 Base part 21 Lower surface casing 211 Bottom part 212 Edge part 22 Speaker 23 Input board 24 Control board 25 Decoration board 26 Upper surface case 261 Box-shaped part 262 Outer edge part 27 Reinforcement body 271 1st board part 272 2nd board Part 273 Third plate part 31 Heat sink 32 Rear plate part 33 Side plate part 34 Bottom plate part 35 Holding part 37 Thick part 38 Thin part 41 First board base 42 Board presser part 43 Stair board part 46 Second board base (Heat transfer) Element)
47 Main board placement portion 48 Speaker placement portion 49 Heat transfer portion 51 First weight 54 Fourth weight 61 First screw 62 Second screw 63 Third screw 64 Fourth screw 71 First hole 72 Second hole 73 Third Hole 74 4th hole 75 5th hole

Claims (8)

  1. 　前面に映像を表示する表示パネルの後側に配置された後板部、前記後板部の縁から前記表示パネル側に突出する底板部、および、前記後板部から前記底板部と同じ向きに前記底板部よりも短く突出する保持部を有する放熱板と、
    　前記放熱板の前記保持部に保持され、前記表示パネルの後側を照明する照明部と
    　を備えることを特徴とする表示装置。     A rear plate portion disposed on the rear side of the display panel displaying an image on the front surface, a bottom plate portion protruding from the edge of the rear plate portion toward the display panel side, and the rear plate portion in the same direction as the bottom plate portion A heat dissipation plate having a holding portion that protrudes shorter than the bottom plate portion;
    A display device comprising: an illumination unit that is held by the holding unit of the heat radiating plate and illuminates a rear side of the display panel.
  2. 　前記後板部は、前記保持部の基端部の前記底板部と反対側に、他の部分よりも厚い厚肉部を有することを特徴とする請求項１に記載の表示装置。 The display device according to claim 1, wherein the rear plate portion has a thicker portion thicker than other portions on the side opposite to the bottom plate portion of the base end portion of the holding portion.
  3. 　前記後板部は、前記保持部と前記底板部との間に、他の部分よりも薄い薄肉部を有することを特徴とする請求項１に記載の表示装置。 2. The display device according to claim 1, wherein the rear plate portion has a thin-walled portion thinner than other portions between the holding portion and the bottom plate portion.
  4. 　前記表示パネルの後面に配置され、一つの端面が前記照明部と対向する導光板を有することを特徴とする請求項１から請求項３のいずれか一つに記載の表示装置。 The display device according to any one of claims 1 to 3, further comprising a light guide plate disposed on a rear surface of the display panel and having one end surface facing the illumination unit.
  5. 　前記表示パネルを有する矩形板状の表示部と、
    　前記底板部を収容し、前記表示部の一辺から前記表示パネルの表示面側に突出して、前記表示部と共にＬ字型を形成する板状のベース部と
    　を備えることを特徴とする請求項１から請求項４のいずれか一つに記載の表示装置。     A rectangular plate-like display unit having the display panel;
    2. A plate-like base portion that accommodates the bottom plate portion, protrudes from one side of the display portion toward the display surface of the display panel, and forms an L shape with the display portion. The display device according to claim 1.
  6. 　矩形の前記表示パネルの側面の辺である第１辺および第３辺と、天側の辺である第２辺とを覆う側面筐体を備え、
    　前記放熱板は、前記後板部、および、前記後板部の前記第１辺側の縁および前記第３辺側の縁に沿って前記表示パネル側に突出し、前記側面筐体の内面に固定された側板部を有する
    　ことを特徴とする請求項１から請求項５のいずれか一つに記載の表示装置。     A side housing that covers a first side and a third side that are side edges of the rectangular display panel, and a second side that is a top side;
    The heat sink protrudes toward the display panel along the first plate side edge and the third side edge of the rear plate portion and the rear plate portion, and is fixed to the inner surface of the side housing. The display device according to any one of claims 1 to 5, further comprising a side plate portion.
  7. 　前記表示パネルの縁に外向きに接続され、前記表示パネルの表示面側に屈曲させた軟性基板と、
    　前記軟性基板に固定されて前記表示パネルよりも前側に配置された集積回路と、
    　前記表示パネルの縁よりも外側に配置されており、前記集積回路または前記軟性基板の前記集積回路が固定された部分の裏側に接触する伝熱部材とを備える
    　ことを特徴とする請求項１から請求項６のいずれか一つに記載の表示装置。     A flexible substrate connected outwardly to the edge of the display panel and bent toward the display surface of the display panel;
    An integrated circuit fixed to the flexible substrate and disposed in front of the display panel;
    The heat transfer member which is arrange | positioned outside the edge of the said display panel, and contacts the back side of the part to which the said integrated circuit or the said integrated circuit of the said flexible substrate was fixed is provided. The display device according to claim 6.
  8. 　請求項１から請求項７のいずれか一つに記載の表示装置と、
    　テレビジョン放送を受信する受信部と
    　を備え、
    　前記受信部にて受信したテレビジョン放送に基づいて、前記表示装置に映像を表示するようにしてあることを特徴とするテレビジョン受信機。     A display device according to any one of claims 1 to 7,
    A receiver for receiving television broadcasts,
    A television receiver, wherein an image is displayed on the display device based on the television broadcast received by the receiving unit.
PCT/JP2017/030203 2016-09-05 2017-08-23 Display device and television receiver WO2018043261A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2016-173074 2016-09-05
JP2016173074A JP6333906B2 (en) 2016-09-05 2016-09-05 Display device and television receiver
JP2016-173076 2016-09-05
JP2016-173073 2016-09-05
JP2016173073A JP6333905B2 (en) 2016-09-05 2016-09-05 Display device and television receiver
JP2016173076A JP6333907B2 (en) 2016-09-05 2016-09-05 Display device and television receiver

Publications (1)

Publication Number Publication Date
WO2018043261A1 true WO2018043261A1 (en) 2018-03-08

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