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WO2018043261A1 - Téléviseur et dispositif d'affichage - Google Patents

Téléviseur et dispositif d'affichage 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
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
display device
plate portion
display
plate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/030203
Other languages
English (en)
Japanese (ja)
Inventor
友樹 天野
克史 前田
和也 廣田
剛 尾関
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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 JP2016173076A external-priority patent/JP6333907B2/ja
Priority claimed from JP2016173074A external-priority patent/JP6333906B2/ja
Priority claimed from JP2016173073A external-priority patent/JP6333905B2/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of WO2018043261A1 publication Critical patent/WO2018043261A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Abstract

L'invention concerne un dispositif d'affichage ou analogue qui est susceptible d'empêcher une irrégularité d'affichage entraînée par un décalage dans la relation de position entre une unité d'éclairage et une plaque de guidage de lumière même lorsqu'une force externe agit sur un panneau d'affichage. Ce dispositif d'affichage (10) comprend : une plaque de dissipation de chaleur (31) présentant une partie de plaque arrière (32) disposée sur un côté arrière d'un panneau d'affichage (12) qui affiche une image sur une surface avant, une partie de plaque inférieure (34) qui fait saillie à partir d'un bord de la partie de plaque arrière (32) vers le panneau d'affichage (12), et une partie de maintien (35) qui fait moins saillie que la partie de plaque inférieure (34) à partir de la partie de plaque arrière (32) dans la même direction que la plaque inférieure (34); et une unité d'éclairage (15) qui est maintenue par la partie de maintien (35) de la plaque de dissipation de chaleur (31) et donne de la lumière sur le côté arrière du panneau d'affichage (12).
PCT/JP2017/030203 2016-09-05 2017-08-23 Téléviseur et dispositif d'affichage Ceased WO2018043261A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2016173076A JP6333907B2 (ja) 2016-09-05 2016-09-05 表示装置およびテレビジョン受信機
JP2016-173074 2016-09-05
JP2016173074A JP6333906B2 (ja) 2016-09-05 2016-09-05 表示装置およびテレビジョン受信機
JP2016-173076 2016-09-05
JP2016-173073 2016-09-05
JP2016173073A JP6333905B2 (ja) 2016-09-05 2016-09-05 表示装置およびテレビジョン受信機

Publications (1)

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

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Cited By (1)

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CN109167947A (zh) * 2018-08-06 2019-01-08 深圳创维－Rgb电子有限公司 一种电视机的新型装配结构

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Publication number Priority date Publication date Assignee Title
JP2004294785A (ja) * 2003-03-27 2004-10-21 Japan Aviation Electronics Industry Ltd 液晶表示装置
JP2007178668A (ja) * 2005-12-27 2007-07-12 Toshiba Matsushita Display Technology Co Ltd 平面表示装置及びその製造方法
JP2008026866A (ja) * 2006-07-21 2008-02-07 Samsung Electronics Co Ltd 表示装置
WO2013031672A1 (fr) * 2011-09-02 2013-03-07 シャープ株式会社 Dispositif d'éclairage, dispositif d'affichage et dispositif récepteur de télévision
JP2013178334A (ja) * 2012-02-28 2013-09-09 Sharp Corp 表示装置、及びテレビ受信装置
JP2013195510A (ja) * 2012-03-16 2013-09-30 Sharp Corp 表示装置、及びテレビ受信装置
JP2013218055A (ja) * 2012-04-06 2013-10-24 Sharp Corp 表示装置、及びテレビ受信装置
WO2014038503A1 (fr) * 2012-09-06 2014-03-13 シャープ株式会社 Dispositif d'affichage et récepteur de télévision
JP2014059955A (ja) * 2012-09-14 2014-04-03 Sharp Corp 照明装置およびそれを備えた表示装置
WO2014091978A1 (fr) * 2012-12-14 2014-06-19 ソニー株式会社 Dispositif d'affichage
WO2014148363A1 (fr) * 2013-03-19 2014-09-25 堺ディスプレイプロダクト株式会社 Dispositif de rétroéclairage et dispositif d'affichage

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004294785A (ja) * 2003-03-27 2004-10-21 Japan Aviation Electronics Industry Ltd 液晶表示装置
JP2007178668A (ja) * 2005-12-27 2007-07-12 Toshiba Matsushita Display Technology Co Ltd 平面表示装置及びその製造方法
JP2008026866A (ja) * 2006-07-21 2008-02-07 Samsung Electronics Co Ltd 表示装置
WO2013031672A1 (fr) * 2011-09-02 2013-03-07 シャープ株式会社 Dispositif d'éclairage, dispositif d'affichage et dispositif récepteur de télévision
JP2013178334A (ja) * 2012-02-28 2013-09-09 Sharp Corp 表示装置、及びテレビ受信装置
JP2013195510A (ja) * 2012-03-16 2013-09-30 Sharp Corp 表示装置、及びテレビ受信装置
JP2013218055A (ja) * 2012-04-06 2013-10-24 Sharp Corp 表示装置、及びテレビ受信装置
WO2014038503A1 (fr) * 2012-09-06 2014-03-13 シャープ株式会社 Dispositif d'affichage et récepteur de télévision
JP2014059955A (ja) * 2012-09-14 2014-04-03 Sharp Corp 照明装置およびそれを備えた表示装置
WO2014091978A1 (fr) * 2012-12-14 2014-06-19 ソニー株式会社 Dispositif d'affichage
WO2014148363A1 (fr) * 2013-03-19 2014-09-25 堺ディスプレイプロダクト株式会社 Dispositif de rétroéclairage et dispositif d'affichage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109167947A (zh) * 2018-08-06 2019-01-08 深圳创维－Rgb电子有限公司 一种电视机的新型装配结构
CN109167947B (zh) * 2018-08-06 2021-06-29 深圳创维－Rgb电子有限公司 一种电视机的新型装配结构

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