WO2016013546A1 - Dispositif d'affichage et récepteur de télévision - Google Patents

Dispositif d'affichage et récepteur de télévision Download PDF

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Publication number
WO2016013546A1
WO2016013546A1 PCT/JP2015/070718 JP2015070718W WO2016013546A1 WO 2016013546 A1 WO2016013546 A1 WO 2016013546A1 JP 2015070718 W JP2015070718 W JP 2015070718W WO 2016013546 A1 WO2016013546 A1 WO 2016013546A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
liquid crystal
crystal panel
chassis
support member
Prior art date
Application number
PCT/JP2015/070718
Other languages
English (en)
Japanese (ja)
Inventor
秀太 渡辺
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2016013546A1 publication Critical patent/WO2016013546A1/fr

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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 including a support portion that supports a peripheral portion of a liquid crystal panel that displays an image on the front side from the back side.
  • the display device includes, for example, a support portion that supports a peripheral portion of a liquid crystal panel that displays an image on the front surface from the back side, and a backlight housing that irradiates light on the back surface of the liquid crystal panel.
  • the casing has a support portion overlapped on a side edge, and an engagement protrusion and an engagement hole provided in each overlapping portion are engaged and fixed, and the liquid crystal panel and the circuit board attached to the casing are overlapped.
  • Some are connected by a flexible substrate that curves along the line. Further, some cases have a structure in which a support portion is fixed to the case with screws (for example, Patent Document 1).
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a display device and a television receiver that prevent damage to a flexible substrate.
  • a display device includes a support portion formed by supporting a peripheral portion of a liquid crystal panel that displays an image on the front surface from the back side, and a rod-shaped support member combined in a frame shape, and a back surface that irradiates light on the back surface of the liquid crystal panel.
  • a housing that constitutes a light device, and the support member extends in a direction perpendicular to the support member along the longitudinal direction, and the extension extends at an appropriate interval in the longitudinal direction.
  • the support member characterized in that it comprises a plurality of thick portions respectively provided a plurality of a periphery of each of the engaging hole in a portion overlapping the flexible wiring.
  • the display device is characterized in that each of the plurality of thick portions is provided on one end side or the other end side of a support member centering on each of the plurality of engagement holes.
  • the display device is characterized in that the support member includes a cover portion that covers a portion of the engagement protrusions on the apex side of the plurality of engagement protrusions.
  • the display device is characterized in that the cover portion is in contact with a heat radiating plate fitted in a frame body surrounding a peripheral portion of the liquid crystal panel.
  • a television receiver includes a display device and a reception unit that receives a television broadcast, and displays video on the display device based on the television broadcast received by the reception unit. It is characterized by being.
  • FIG. 1 is a perspective view schematically showing an appearance of a display device according to an embodiment. It is a disassembled perspective view of a display apparatus. It is a sectional side view which shows the lower part of a display apparatus. It is a conceptual diagram of the chassis member which comprises a panel chassis. It is a principal part enlarged view of FIG.
  • FIG. 6 is an enlarged conceptual diagram showing a main part of a chassis member according to Embodiment 2.
  • FIG. 6 is an enlarged conceptual diagram showing a main part of a chassis member according to Embodiment 3.
  • FIG. 6 is a side sectional view showing a lower part of a display device according to Embodiment 3. It is an expansion perspective view which shows the center part vicinity of the chassis member which attached the backlight chassis.
  • the display device is, for example, a liquid crystal display device.
  • a television receiver including a liquid crystal display device will be described.
  • FIG. 1 is a perspective view schematically showing the appearance of a display device according to an embodiment.
  • the illustrated display device includes a liquid crystal panel 1 that displays an image on an image display surface, and a box-shaped cabinet 2 that houses the liquid crystal panel 1.
  • the image display surface side of the liquid crystal panel 1 is the front side, and the other side is the back side.
  • the cabinet 2 includes a front cabinet (frame body) 10 that surrounds the front surface of the peripheral portion of the liquid crystal panel 1 and a rear cabinet 20 that covers the back of the front cabinet 10.
  • the display device shown in FIG. 1 can be configured as a television receiver including a receiving unit 11 and a signal processing unit 12 provided inside the cabinet 2.
  • the receiving unit 11 is connected to an antenna (not shown) and receives a television broadcast via the antenna.
  • the signal processing unit 12 demodulates data related to television broadcasting received by the receiving unit 11, separates image data from the demodulated data, and outputs the separated image data.
  • the liquid crystal panel 1 displays an image based on the image data output from the signal processing unit 12 on the image display surface.
  • the display device further includes a stand 13, which is supported on an appropriate mounting surface via the stand 13, and is used while maintaining the image display surface of the liquid crystal panel 1 in a vertical position as shown in FIG. .
  • the upper and lower used in the following description correspond to the upper and lower in the above-described use state, and the left and right correspond to the left and right when viewed from the front side in the use state.
  • FIG. 2 is an exploded perspective view of the display device.
  • FIG. 3 is a side sectional view showing a lower portion of the display device. In FIG. 3, the illustration of the rear cabinet 20 is omitted.
  • the liquid crystal panel 1 is sandwiched between a front cabinet 10 on the front side and a panel chassis (supporting unit) 3 on the back side.
  • the panel chassis 3 is configured by combining rod-shaped chassis members (support members) 30 corresponding to the respective sides of the liquid crystal panel 1 in a frame shape, and an optical element facing the back side of the liquid crystal panel 1 together with the liquid crystal panel 1.
  • the sheet 8 is supported.
  • a backlight chassis (housing) 4 having a shallow dish shape is assembled on the back side of the panel chassis 3.
  • the light guide plate 7 is supported with a wide surface facing the back surface of the optical sheet 8.
  • a reflection sheet 9 is disposed on the back surface of the light guide plate 7.
  • an engagement protrusion 42 that is bent downward is provided on the side wall 41 of the backlight chassis 4 that rises substantially vertically from the lower edge of the bottom plate 40.
  • a plurality of engaging protrusions 42 are arranged side by side in the longitudinal direction (left-right direction) of the side wall 41, and a plurality of engaging protrusions 42 are also arranged side by side on the side plate on the upper side of the backlight chassis 4 and on the left and right side plates. Used for engaging and fixing as described later.
  • the liquid crystal panel 1 is connected to a circuit board 6 supported on the outer back surface of the backlight chassis 4 via an SOF (System On Film) 5.
  • An SOF (flexible wiring) 5 is a flexible substrate (wiring) on which a driver LSI for driving the liquid crystal panel 1 is mounted on one surface, and one end is connected to the lower side portion 1a of the liquid crystal panel 1, and the front cabinet 10 and the panel chassis are connected.
  • 3 is connected to the circuit board 6 at the other end which is led out to the back side through the space between the opposing surfaces 3 and bent upward.
  • a plurality of circuit boards 6 are arranged side by side in the left-right direction, and the SOF 5 is led out to the outside at a position corresponding to each circuit board 6.
  • a signal circuit (not shown) is formed on each circuit board 6.
  • the signal circuit outputs a display drive signal based on the video data output from the signal processing unit 12 to the driver LSI included in the SOF 5.
  • FIG. 4 is a conceptual diagram of the chassis member 30 constituting the panel chassis 3.
  • the chassis member 30 is an angle member having an L-shaped cross section having a front plate 31 and side plates (extending portions) 32 that intersect at a substantially right angle.
  • the side plate 32 is extended in the direction orthogonal to the panel chassis 3 along the longitudinal direction, and is missing over a suitable length at a plurality of locations in the longitudinal direction.
  • Engaging plates (projections) 33 extending from the front plate 31 toward the same side and used for engaging and fixing the backlight chassis 4 are provided at nine locations equally spaced in the longitudinal direction of the chassis member 30. .
  • FIG. 5 is an enlarged view of the main part of FIG. 4 and shows the central part of the chassis member 30 and the left end part of the chassis member 30.
  • the engagement plate 33 provided at each position is provided with an engagement hole 331 having a rectangular cross section extending in the left-right direction along the longitudinal direction of the chassis member 30.
  • Thick portions 332 are provided on the left and right sides of 331 along the respective side edges.
  • the chassis member 30 configured in this way is arranged with the front plate 31 facing forward and the side plate 32 facing downward.
  • the engaging plate 33 protrudes in parallel with the extending portion at an appropriate interval below the side plate 32.
  • the thick portions 332 located on the left and right of the engagement hole 331 extend downward from the lower surface of the engagement plate 33.
  • the method of attaching the chassis member 30 to the backlight chassis 4 is as follows. As shown in FIG. 3, the chassis member 30 abuts the side plate 32 on the side wall 41 of the backlight chassis 4, moves it in the left-right direction, slides the side wall 41 between the side plate 32 and the engagement plate 33, and The side plate 32 is fixed to the lower end of the backlight chassis 4 by engaging the engaging protrusion 42 protruding from the surface on the protruding portion side with the engaging hole 331, and attached to the backlight chassis 4.
  • chassis member 30 can be attached to the backlight chassis 4 on the right side, the left side, and the upper part by the same attachment method.
  • the SOF 5 is connected to the circuit board 6 through the lower portion of the engagement plate 33. At this time, since the plurality of SOFs 5 can be brought into contact with the thick portion 332 to avoid contact with the engaging protrusions 42, damage to the SOFs 5 by the engaging protrusions 42 can be prevented. Further, the thick portion 332 serves as a reinforcement for the engagement plate 33.
  • the backlight chassis 4 and the panel chassis 3 may be fixed with screws.
  • the SOF 5 may be damaged by the screws coming into contact with the SOF 5. Since the display device in the present embodiment can avoid contact with the screws by bringing a plurality of SOFs 5 into contact with the thick portion 332, damage to the SOFs 5 due to the screws can be prevented.
  • FIG. 6 is an enlarged conceptual diagram showing a main part of the chassis member 30 according to the second embodiment.
  • the engagement plate 33 includes a thick portion 332 on one end side or the other end side of the chassis member 30 centering on each of the plurality of engagement holes 331.
  • the thick portion 332 is only on one end side or the other end side of the chassis member 30 centering on each of the plurality of engagement holes 331, it is difficult to obstruct the mounting. This makes it easy to design a display device.
  • FIG. 7 is an enlarged conceptual diagram showing a main part of the chassis member 30 according to the third embodiment.
  • the configuration and operation other than those specifically described are the same as those of the second embodiment, and the description is omitted for the sake of brevity.
  • the chassis member 30 includes a cover portion 34 protruding from the right portion of the engagement plate 33 at the center portion.
  • the cover 34 has a rectangular shape, and the width in the front and back direction is half that of the engagement plate 33.
  • the cover part 34 is provided at a position corresponding to the position of the engagement protrusion 42.
  • FIG. 8 is a side sectional view showing the lower part of the display device according to the third embodiment. As shown in FIG. 8, an appropriate interval is provided between the cover portion 34 and the side plate 32.
  • FIG. 9 is an enlarged perspective view showing the vicinity of the center portion of the chassis member 30 to which the backlight chassis 4 is attached.
  • the chassis member 30 and the backlight chassis 4 are fixed by engaging a part of the engagement protrusion 42 with the engagement hole 331.
  • the cover portion 35 covers a portion on the apex side of the remaining engagement protrusions 42 that do not engage with the engagement holes 331 among the plurality of engagement protrusions 42.
  • the SOF 5 comes into contact with the cover portion 35 and does not come into contact with the engagement protrusion 42.
  • FIG. 10 is an enlarged perspective view showing the vicinity of the left end portion of the chassis member 30 to which the backlight chassis 4 is attached.
  • the chassis member 30 and the backlight chassis 4 are fixed by engaging a part of the engagement protrusion 42 with the engagement hole 331.
  • the contact between the SOF 5 and the engagement protrusion 42 can be avoided by the SOF 5 coming into contact with the thick portion 332 at the position of the engagement hole 331 engaged with the engagement protrusion 42. .
  • the cover portions 34, 35 cover the apex side portion of the engagement projection 42, so that the display device of the type having the engagement projection 42 in addition to the position of the engagement plate 33 also uses the engagement projection 42. Damage to the SOF 5 can be prevented. For this reason, productivity can be improved by using the panel chassis 3 for various display devices.
  • FIG. 11 is an enlarged perspective view showing the vicinity of the central portion of the chassis member 30 according to Embodiment 4 to which the backlight chassis 4 is attached.
  • the chassis member 30 is provided with a protruding portion 311 at a position spaced leftward from the SOF 5.
  • the protrusion 311 has a thicker portion 312 at the center than the other portions.
  • the cover portion 35 is provided with a thick portion 351 thicker than other portions in a portion that does not overlap the SOF 5.
  • FIG. 12 is a side sectional view showing the lower part of the display device provided with the protrusion 311.
  • FIG. 13 is a side sectional view showing the lower part of the display device provided with the thick part 351.
  • the heat sink is fitted by the edge part of the front cabinet 10 from the back side.
  • the heat radiating plate is also shown in FIGS. 3 and 8, as shown in FIGS. 12 and 13, the heat radiating plate comes into contact with the thick portions 312 and 351.
  • the thick plates 312 and 351 are in contact with the heat radiating plate to prevent the heat radiating plate from moving upward.
  • the SOF 5 can be prevented from being sandwiched between the heat sink and the backlight chassis 4 due to the bending of the front cabinet 10, and damage to the SOF 5 can be prevented.
  • the display device supports a peripheral portion of the liquid crystal panel 1 that displays an image on the front side from the back side, a support unit 3 that is a combination of a rod-like support member 30 in a frame shape, and light on the back side of the liquid crystal panel 1.
  • the support member 30 is extended in a direction orthogonal to the support member 30 along the longitudinal direction, and an appropriate lengthwise direction.
  • a plurality of projecting portions 33 projecting in parallel with the extending portion 32 with an interval of ⁇ , and sliding the side wall 41 of the housing 4 between the extending portion 32 and the plurality of projecting portions 33.
  • the plurality of engaging protrusions 42 protruding from the surface on the protruding portion 33 side of the side wall 41 and the plurality of engaging holes 331 formed in the plurality of protruding portions 33 are engaged with each other.
  • Circuit board 6 fixed to the back of the liquid crystal panel 1 and the housing 4 Are connected by the flexible wiring 5 along the plurality of protrusions 33, the support member 30 overlaps the flexible wiring 5 around each of the plurality of engagement holes 331.
  • Each of the plurality of thick portions 332 provided in the portion is provided.
  • the display device is characterized in that each of the plurality of thick portions 332 is provided on one end side or the other end side of the support member 30 around each of the plurality of engagement holes 331. To do.
  • the display device is characterized in that the support member 30 includes cover portions 34 and 35 that cover a portion of the engagement protrusions 42 on the apex side of the plurality of engagement protrusions 42.
  • the SOF 5 is prevented from being damaged by the engaging protrusions 42 even in a type of display device having the engaging protrusions 42 in addition to the position of the engaging plate 33. be able to.
  • the display device is characterized in that the cover portion 35 is brought into contact with a heat radiating plate fitted to a frame body 10 surrounding the peripheral edge portion of the liquid crystal panel 1.
  • the SOF 5 can be prevented from being sandwiched between the heat sink and the backlight chassis 4 due to the bending of the front cabinet 10, and damage to the SOF 5 can be prevented.
  • the television receiver includes a display device and a receiving unit 11 that receives a television broadcast, and displays video on the display device based on the television broadcast received by the receiving unit 11. It is characterized by that.

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

Abstract

　L'invention concerne un dispositif d'affichage et un récepteur de télévision permettant de prévenir les dommages causés à un substrat flexible. Ce dispositif d'affichage comprend : une partie de support 3 servant à supporter, à partir du côté de surface arrière, la partie de bord périphérique d'un panneau à cristaux liquides 1 servant à afficher des images sur la surface avant, ladite une partie de support 3 comprenant des éléments de support en forme de tige 30 assemblés pour produire un cadre ; et un châssis 4 qui constitue un dispositif de rétroéclairage servant à éclairer la surface arrière du panneau à cristaux liquides 1 avec de la lumière, les éléments de support en forme de tige 30 ayant chacun une partie étendue 32 qui s'étend dans une direction orthogonale aux éléments de support 30, le long de leur longueur, et une pluralité de parties saillantes 33 espacées de façon appropriée dans le sens de la longueur, les parties saillantes 33 faisant saillie parallèlement à la partie étendue 32, et le panneau à cristaux liquides 1 et une carte de circuit imprimé 6 fixée sur la surface arrière du châssis 4 étant connectés par un câblage flexible 5 déployé le long de la pluralité de parties saillantes 33, les éléments de support 30 comprenant une pluralité de parties épaisses 332 situées individuellement autour d'une pluralité de trous d'engagement individuels 331, destinées à être agencés pour être en contact avec le câblage flexible 5.
PCT/JP2015/070718 2014-07-25 2015-07-21 Dispositif d'affichage et récepteur de télévision WO2016013546A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014-152166 2014-07-25
JP2014152166 2014-07-25
JP2015051130 2015-03-13
JP2015-051130 2015-03-13

Publications (1)

Publication Number Publication Date
WO2016013546A1 true WO2016013546A1 (fr) 2016-01-28

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PCT/JP2015/070718 WO2016013546A1 (fr) 2014-07-25 2015-07-21 Dispositif d'affichage et récepteur de télévision

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080143918A1 (en) * 2006-12-13 2008-06-19 Kim Heung-Seok Backlight assembly and liquid crystal display including the same
US20110141391A1 (en) * 2009-12-14 2011-06-16 Kim Hyunok Liquid crystal display device
US20130194781A1 (en) * 2012-01-27 2013-08-01 Samsung Electronics Co., Ltd. Flat panel display device and method for manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080143918A1 (en) * 2006-12-13 2008-06-19 Kim Heung-Seok Backlight assembly and liquid crystal display including the same
US20110141391A1 (en) * 2009-12-14 2011-06-16 Kim Hyunok Liquid crystal display device
US20130194781A1 (en) * 2012-01-27 2013-08-01 Samsung Electronics Co., Ltd. Flat panel display device and method for manufacturing the same

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