WO2008065788A1 - Dispositif d'affichage et poste de télévision - Google Patents

Dispositif d'affichage et poste de télévision Download PDF

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Publication number
WO2008065788A1
WO2008065788A1 PCT/JP2007/066280 JP2007066280W WO2008065788A1 WO 2008065788 A1 WO2008065788 A1 WO 2008065788A1 JP 2007066280 W JP2007066280 W JP 2007066280W WO 2008065788 A1 WO2008065788 A1 WO 2008065788A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
liquid crystal
display device
crystal display
back frame
Prior art date
Application number
PCT/JP2007/066280
Other languages
English (en)
Japanese (ja)
Inventor
Seiji Yano
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2008065788A1 publication Critical patent/WO2008065788A1/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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components

Definitions

  • the present invention relates to a display device, and more particularly to a display module in which a peripheral edge of a display panel is sandwiched between a front frame and a back frame.
  • flat display panels such as liquid crystal display panels have been widely used as display units of various electrical products such as computers, televisions, and mobile phones.
  • a liquid crystal display panel has a configuration in which liquid crystal is sealed between two glass substrates that are arranged to face each other with a minute interval therebetween.
  • a source drive circuit board 102S and a gate drive circuit board 102G are attached to the periphery of the plate-like liquid crystal display panel 102, and the front frame 103 and the back of which the peripheral edge of the liquid crystal display panel 102 makes a pair.
  • the liquid crystal display device is configured by being sandwiched between and supported by the frame 101.
  • Japanese Patent Application Laid-Open No. 2005-283868 describes a liquid crystal display device in which a liquid crystal display panel is supported by a frame-shaped support frame.
  • a liquid crystal display panel 102 is placed on a back frame 101, and the periphery of the liquid crystal display panel 102 is placed on a front frame 103.
  • the front frame 103 is placed so that it is covered with, and the back frame 101 and the front frame 103 are locked together to assemble
  • a pedestal 104 on which the liquid crystal display panel 102 is placed is provided on the inner peripheral edge of the back frame 101, and a positioning wall 105 is erected so as to surround the outer periphery of the pedestal 104.
  • the liquid crystal display panel 102 is placed on the pedestal 104 of the back frame 101, the liquid crystal display panel 102 is positioned in a state in which the periphery is surrounded by the positioning wall 105 and fitted into the back frame 101.
  • a buffer member 106 that abuts the liquid crystal display panel 102 and protects the liquid crystal display panel 102 is partially attached to the pedestal 104 and the positioning wall 105 of the back frame 101.
  • the front frame 103 is attached so as to cover the back frame 101 on which the liquid crystal display panel 102 is positioned in this manner, and the front frame 103 and the back frame 101 are locked to each other.
  • the liquid crystal display panel 102 is sandwiched between the front frame 103 and the back frame 101.
  • the front frame 103 and the back frame 101 have a frame shape formed in a substantially quadrangular shape covering the periphery of the liquid crystal display panel 102, which is formed by metal pressing or injection molding of a synthetic resin material. Because of this member, deformation due to stagnation is likely to occur. Further, since the liquid crystal display panel is formed by laminating thin glass plates, deformation due to stagnation increases as the liquid crystal display panel 102 itself becomes larger.
  • the liquid crystal display device 100 when transporting the liquid crystal display device 100, it is necessary to grip the peripheral portion of the liquid crystal display device 100 in a state where the liquid crystal display panel 102 is sandwiched between the front frame 103 and the back frame 101. There is a case where the position of the liquid crystal display panel 101 is shifted due to the force applied to the front frame 103 or the back frame 102. For example, as shown in FIG. 14 (b), when the liquid crystal display panel 102 rides on the buffer member 106 provided on the back frame 101, the surface of the liquid crystal display panel 102 is strongly pressed against the front frame 103.
  • an object of the present invention is to provide a display device that makes it easy to check whether a display panel sandwiched between a front frame and a back frame is correctly positioned.
  • a display device is a display device in which a peripheral edge of a display panel is sandwiched between a front frame and a back frame, On the other hand, a positioning part for positioning the display panel is provided on one side, and an opening window is provided on either side so that the positioning part on the back frame is visible. To do.
  • a positioning part for positioning the display panel is provided on either the front frame or the back frame! /, And the other is provided on the other side. Since an opening window is provided to make the positioning portion visible, even if the display panel is sandwiched between the front and back frames, the display panel is positioned at the positioning portion through the opening window. You can check if it has been decided. Therefore, it is possible to easily detect the displacement of the display panel. Thereby, a display apparatus can be manufactured efficiently.
  • FIG. 1 is an exploded perspective view of a display device 1 according to an embodiment of the present invention.
  • FIG. 2 (a) is a top view of the back frame, and (b) is a cross-sectional view taken along line AA in FIG. 2 (a).
  • FIG. 3 is an enlarged perspective view of a part of a front frame, a liquid crystal display panel, and a back frame.
  • FIG. 4 is a perspective view showing a state in which a liquid crystal display panel is arranged on the back frame shown in FIG.
  • FIG. 5 is a top view of the front frame.
  • FIG. 6 (a) is a top view showing a state in which the liquid crystal display panel is sandwiched between the back frame and the front frame, and (b) is a cross-sectional view thereof.
  • FIG. 7 is a diagram showing a state where the liquid crystal display panel shown in FIG. 6 is displaced from the positioning part of the back frame.
  • FIG. 8 is a diagram showing a state in which the liquid crystal display panel shown in FIG. 6 is displaced from the positioning part of the back frame. is there.
  • FIG. 9 is a view showing a first modification of the opening window provided in the front frame.
  • FIG. 10 is a diagram showing a second modification of the opening window provided in the front frame.
  • FIG. 11 is a view showing a third modification of the opening window provided in the front frame.
  • FIG. 12 is an exploded perspective view showing an outline of a television receiver according to an embodiment of the present invention.
  • FIG. 13 is an exploded perspective view for supporting a liquid crystal display panel between a conventional front frame and a back frame.
  • FIG. 14 is a cross-sectional view showing a state in which a liquid crystal display panel is sandwiched between a conventional front frame and a back frame.
  • FIG. 1 is an exploded perspective view of a display device 1 according to an embodiment of the present invention.
  • Fig. 1 shows an example of a display device in which the periphery of a liquid crystal display panel is sandwiched between a front frame and a back frame, and an illumination module is arranged on the back side (lower side in Fig. 1).
  • the liquid crystal display panel 10 has a liquid crystal sealed between two substantially rectangular transparent substrates. Since the liquid crystal display panel 10 that has been conventionally used can be applied, a detailed description will be omitted and a brief description will be given below.
  • Each transparent substrate constituting the liquid crystal display panel 10 is a thin glass plate having a thickness of about 700 11 m, and the liquid crystal is sealed between the two transparent substrates to form the liquid crystal display panel 10. .
  • a display area D in which a large number of picture elements are arranged in a matrix is formed at the center of the liquid crystal display panel 10, and the display of the liquid crystal display panel 10 is adjusted by adjusting the light transmittance of each picture element. A predetermined image is displayed in area D.
  • the source drive circuit board 12S and the gate drive circuit board 12G on which the source drive circuit and the gate drive circuit for supplying the source signal and the gate signal to each of these pixels are mounted are one length of the liquid crystal display panel. Mounted on one side and one short side.
  • the source driving circuit board 12S and the gate driving circuit board 12G are mounted on a driving IC (Integrated Circuit) called TAB (Tape Automated Bonding) or TCP (Tape Carrier Package)!
  • the back frame 20 having the positioning portion 22 for positioning the liquid crystal display panel 10 is in contact with the peripheral edge of the back surface of the liquid crystal display panel 10, that is, outside the display area D of the liquid crystal display panel 10.
  • the light emitted from the illumination module disposed on the back side of the liquid crystal display panel 10 is transmitted through the illumination light opening 24.
  • this back frame is generally called a frame.
  • Fig. 2 (a) is a top view of the back frame 20
  • Fig. 2 (b) is a cross-sectional view taken along the line A-A of Fig. 2 (a)
  • Fig. 3 is a table frame and a liquid crystal. It is the perspective view which expanded and showed a part of display panel and a back frame.
  • the portion of the back frame 20 that overlaps the liquid crystal display panel 10 is formed to be recessed from the outer peripheral side, and functions as a pedestal 22a on which the liquid crystal display panel 10 is disposed.
  • a positioning wall 22b having a height substantially equal to the thickness of the liquid crystal display panel 10 is erected from the outer peripheral edge of the pedestal 22a.
  • the positioning portion 22 of the back frame 20 is composed of the pedestal 22a, the positioning wall 22b, and a force.
  • the periphery of the liquid crystal display panel 10 is surrounded by the positioning wall 22b, and the liquid crystal display panel 10 is fitted into the back frame 20 for positioning. Is done.
  • a buffer member 26 with which the liquid crystal display panel 10 abuts is attached to the positioning portion 22.
  • one band-shaped buffer member 26a is attached to each of the long side and the short side of the base 22a as the buffer member 26, and a positioning wall is further provided.
  • a block-shaped cushioning member 26b for protecting the end face of the liquid crystal display panel 10 is attached to 22b! /.
  • the block-shaped buffer member 26b is provided in the vicinity of both ends of one short side of the back frame 20 and in the vicinity of both ends and the center of one long side, and is in contact with the end surface of the liquid crystal display panel 10. It is mounted so as to protrude slightly inward from the positioning wall 22b.
  • the band-shaped buffer member 26a and the block-shaped buffer member 26b may be formed by foaming a synthetic resin material or a synthetic rubber material. Adhesive layers are formed on predetermined surfaces that contact the back frame 20 of these band-shaped buffer members 26a and block-shaped buffer members 26b, and the buffer members 26a and 26b are connected to the back frame 20 through the adhesive layers. Attached to the pedestal 22a or the positioning wall 22b. Note that the source driving circuit board mounted on the liquid crystal display panel 10 is provided on the other short side and the long side opposite to the short side and the long side to which the block-shaped buffer member 26b is attached. A source driving circuit board housing part 28S for housing 12S and the gate driving circuit board 12G and a gate driving circuit board housing part 28G are provided.
  • the source drive circuit board housing portion 28S extends from the base 22a on which the liquid crystal display panel 10 is placed toward the outer peripheral edge of the back frame 20.
  • the source drive circuit board housing 28S is not provided with a positioning wall 22b for positioning the liquid crystal display panel 10, and the portion of the source drive circuit board 12S that protrudes from the outer periphery of the back frame 20 is the back frame 20 It is folded along the side wall 29 (folded downward in FIG. 1) and stored between the back frame 20 and the front frame 30.
  • the gate drive circuit board housing part 28G is also extended from the base 22a on which the liquid crystal display panel 10 is placed toward the outer peripheral edge of the back frame 20, and the gate of the liquid crystal display panel 10 placed on the base 22a.
  • a positioning wall 22b is formed along the outer peripheral edge of the drive circuit board 22G.
  • a side wall 29 is extended on the outer periphery of the back frame 20.
  • the side wall 29 has a function to reinforce the back frame 20 and prevents the back frame 20 from being bent or distorted.
  • An engagement portion for locking the front frame 30 and the back frame 20 is provided at a predetermined portion of the side wall 29.
  • Engaging protrusions 29a are provided at positions corresponding to the engaging holes 39a of the engaged portion of the front frame 30 on both ends of the long side and the short side of the back frame 20, respectively.
  • the engaging projection 29a is inserted into the engaging hole 39a, and the front frame 30 and the back frame 20 are locked.
  • a screw hole 29b is provided in the side wall 29 of the back frame 20, and is fixed so that the locking of the front frame 30 and the back frame 20 is not released via a screw (not shown).
  • the back frame 20 is formed by injection molding of a synthetic resin material or press working of a metal plate material.
  • the back frame 20 may be configured by combining divided frames in which the long side and the short side are divided. Good.
  • the shape of the positioning portion 22 is not limited to the above embodiment, and may be any shape as long as the liquid crystal display panel 10 is positioned on the back frame 20 by contacting the end surface of the liquid crystal display panel 10. Of course.
  • the liquid crystal display panel 10 when the liquid crystal display panel 10 is placed on the pedestal 22a of the back frame 20, the liquid crystal display panel 10 is positioned by being surrounded by a positioning wall 22b. This The liquid crystal display panel 10 abuts against a block-shaped buffer member 26b provided to protrude from the positioning wall 22b. Therefore, even if an impact is applied to the side surface of the assembled liquid crystal display device, the impact is mitigated by the block-shaped buffer member 26b, and the end surface of the liquid crystal display panel 10 is prevented from being damaged. Can do.
  • the back frame 20 made of a synthetic resin material or metal is directly applied to the back surface of the liquid crystal display panel 10 made of a glass substrate. Touch the LCD panel 10 without touching it.
  • the front frame 30 is attached to the back frame 20 on which the liquid crystal display panel 10 is positioned, and the periphery of the liquid crystal display panel 10 is sandwiched between the front frame 30 and the back frame 20.
  • FIG. 5 shows a top view of the table frame.
  • the front frame 30 is a member that supports the liquid crystal display panel 10 in contact with the peripheral edge of the surface of the liquid crystal display panel 10 and cooperates with the back frame 20 and has an area substantially equal to the display area D of the liquid crystal display panel 10. It is formed in a frame shape having a display opening 32.
  • the front frame 30 shown in FIG. 5 has both the vicinity of both ends of one short side of the front frame 30 and the length of one side so as to correspond to the block-shaped buffer member 26b provided on the positioning portion 22 of the back frame 20.
  • Open windows 34 are provided at both ends of the side and near the center. Further, as shown in FIG. 6B, a band-shaped cushion member 36 that protects the surface of the liquid crystal display panel 10 is provided on the surface of the front frame 30 that faces the surface of the liquid crystal display panel 10. It is attached so as to surround.
  • an outer wall 38 is extended on the outer periphery of the front frame 30.
  • the outer wall 38 of the front frame 30 is positioned on the side surface of the liquid crystal display device 1 and serves as a housing.
  • the outer wall 38 has a function of reinforcing the front frame 30 itself, and prevents the back frame 20 from being bent or distorted.
  • Engagement holes 39a are provided as engaged portions at positions corresponding to the engagement protrusions 29a of the engagement portion of the back frame 20 at both ends on the long side and short side of the outer wall 38 of the front frame 30, respectively. It is provided! When the front frame 30 is attached to the back frame 20, the engaging projection 29 a is pulled to the engagement hole 39 a, and the scale front frame 30 and the back frame 20 are locked. Further, the outer wall 38 of the table frame 30 is provided a hole 39b for screwing, the engagement between the front frame 30 and Urawaku 2 ⁇ via screws (not shown) solution Fix so that it is not removed. The front frame is formed by pressing a metal plate material.
  • FIGS. 6 (a) and 6 (b) show that the front frame 30 is attached to the back frame 20 on which the liquid crystal display panel 10 is positioned, and the liquid crystal display panel 10 is interposed between the back frame 20 and the front frame 30. It is the upper side figure and sectional drawing which show the state clamped.
  • the opening window 34 provided in the front frame 30 protects by touching the end face of the liquid crystal display panel 10 when the liquid crystal display panel 10 is positioned on the back frame 20.
  • the block-shaped buffer member 26b and the edge of the surface of the liquid crystal display panel 10 positioned on the back frame 20 are formed so as to be visible. 6 shows an enlarged view of the opening window 34 provided at the end of the long side of the front frame 30.
  • the opening window 34 provided on the short side of the front frame 30 and the center of the long side are provided.
  • the opened window 34 is also formed so that the portion where the end face of the liquid crystal display panel 10 abuts against the block-like buffer member 26b provided in the positioning portion 22 of the back frame 20 can be visually confirmed.
  • the liquid crystal display panel 10 is placed on the pedestal 22a, and a belt-like loose attached to the pedestal 22a.
  • the impact member 26a contacts the back surface of the liquid crystal display panel 10
  • the block-shaped buffer member 26b attached to the positioning wall 26b contacts the end surface of the liquid crystal display panel to protect the liquid crystal display panel 10.
  • the cushion member attached around the display opening 32 of the front frame 30 is attached to the liquid crystal display panel 10.
  • the liquid crystal display panel 10 is sandwiched and supported between the front frame 30 and the back frame 20 in contact with the front surface.
  • the opening window 34 at a position where the positioning portion 22 of the back frame 20 is visible, the liquid crystal display panel 10 is accurately positioned on the back frame 20 and the appearance thereof. It can be easily detected.
  • the portion of the positioning portion 22 that contacts the end face of the liquid crystal display panel 10, that is, the block-shaped buffer member 26 b and the edge of the display panel 10 that contacts the block-shaped buffer member 26 b in the example of FIG. It is better if the opening window 34 is formed so that the surface can be seen! /.
  • the number of the opening windows 34 is not limited to that shown in FIGS. 1 and 5, for example, one may be formed on the long side or the short side of the table frame 30, or one long side and The short side alone It may be formed on both long and short sides.
  • the opening window 34 is provided at both ends of one short side of the front frame 30 and at both ends of the one long side and near the center. Therefore, when the liquid crystal display panel 10 is sandwiched between and supported by the front frame 30 and the back frame 20, the liquid crystal display panel 10 and the back frame 20 are sandwiched and the liquid crystal display panel 10 is partially separated from the back frame 20. Even if it is displaced from the positioning portion, the displacement can be detected through the opening window 34 provided at the corresponding position.
  • the opening windows 34 are provided at a plurality of locations on the long side and the short side, the positional deviation of the liquid crystal display panel 10 can be detected more accurately.
  • the opening windows 34 are formed on the long side and the short side opposite to the side on which the gate driving circuit board 12G and the source driving circuit board 12S are attached. Dust and dust do not adhere to the gate drive circuit board 12G and the source drive circuit board 12S.
  • FIG. 7 is a top view and a cross-sectional view showing a part of the liquid crystal display device 1 in a state where the liquid crystal display panel 10 is displaced from the positioning portion 22 of the back frame 20.
  • the block-shaped buffer member 26b which is a part of the positioning portion is hidden behind the liquid crystal display panel and is not visible from the opening window of the front frame.
  • the liquid crystal display panel 10 is displaced from the positioning unit 22. Since the front window 30 is thus provided with the opening window 34, it can be easily confirmed whether the liquid crystal display panel 10 is accurately positioned on the back frame 20. Therefore, when the position of the liquid crystal display panel 10 is displaced, this can be detected before proceeding to the next process, and the liquid crystal display device proceeds to the next process in a state of including a defect. There is no reduction in productivity.
  • FIG. 8 is a top view showing a state in which the liquid crystal display panel 10 is displaced in a direction away from the positioning portion 22. Since the liquid crystal display panel is arranged away from the elastic member, the block-shaped cushioning member 26b and the pedestal 22a of the positioning portion 22 are visually recognized from the opening window 34 of the front frame 20, and the liquid crystal display panel 10 is correctly positioned. If so, the liquid crystal display panel 10 that should be visible cannot be seen. Therefore, the liquid crystal display panel 10 is positioned Can easily detect that it is out of 22! /.
  • FIGS. 9 to 11 show modified examples of the opening window of the front frame.
  • the opening window 34a of the front frame 30a shown in FIG. 9 is formed in a substantially square shape.
  • FIG. 10 shows an example in which a plurality of slit-shaped opening windows 34b formed in a direction crossing the edge of the liquid crystal display panel 10 are arranged side by side.
  • FIG. 11 shows an example in which a substantially circular opening window 34c is formed.
  • the shape of the opening window is not particularly limited to a rectangle or the like, and may be formed so that the positioning portion of the back frame can be visually recognized with the front frame attached to the back frame.
  • the place where the force opening window is provided in which the opening window 34 is provided at the position corresponding to the block-shaped buffer member 26b of the positioning portion 22 of the back frame 20 corresponds to the block-shaped buffer member 26b. It is not limited to the position where it is performed. For example, even if the block-shaped buffer member 26b is not provided, the position may be a position where the positioning portion 22 of the back frame 20, for example, the positioning wall 22b can be visually recognized.
  • an illumination module is arranged on the back side of the liquid crystal display panel supported between the front frame 30 and the back frame 20 in this way, and the back side of the liquid crystal display panel 10 is irradiated with illumination light. And an image is displayed in the display area D of the liquid crystal display panel 10.
  • a chassis 51 As shown in FIG. 1, on the back side of the liquid crystal display panel 10, a chassis 51, a reflection sheet 52, a light source 53, a side holder 54, optical sheets 55, a light source driving circuit board 56, An illumination / illumination module including a light source drive circuit board cover 56a is disposed, and a drive control circuit board 57 for controlling the liquid crystal display panel 10 and the light source 53 and a drive control circuit board cover 57a are attached.
  • chassis 51 reflection sheet 52, light source 53, side holder 54, optical sheets 55, light source drive circuit board 56, light source drive circuit board cover 56a, drive control circuit board 57, drive control circuit board cover 57a
  • optical sheets 55 light source drive circuit board 56, light source drive circuit board cover 56a, drive control circuit board 57, drive control circuit board cover 57a
  • the chassis 51 is a substantially flat plate-like member, and is formed of a metal plate material or the like using a press process or the like.
  • the light source 53 various known light sources such as a fluorescent tube such as a cold cathode tube and a hot cathode tube, a discharge tube such as a xenon tube, and a light emitting element such as an LED can be applied.
  • the line 1 shows a configuration to which a cold cathode tube is applied.
  • the reflection sheet 52 is a sheet-like or plate-like member having a surface property that diffusely reflects light emitted from the light source 53.
  • the reflection sheet 52 is formed of, for example, foamed PET (polyethylene terephthalate).
  • the side holder 54 is a member that functions as a spacer or the like for disposing optical sheets 55 described later.
  • the side holder 54 is a substantially rod-shaped member and is integrally formed of, for example, a resin material.
  • the optical sheets 55 refer to a sheet-like member or a plate-like member that adjusts the characteristics of light emitted from the light source 53, or a set of such members.
  • the optical sheets 55 include, for example, a diffusion plate, a diffusion sheet, a polarization reflection sheet, a lens sheet, and the like. In general, these are stacked and used.
  • the light source drive circuit board 56 is a circuit board on which a light source drive circuit and the like are constructed.
  • the light source drive circuit board cover 56a is a plate-like member that covers the light source drive circuit board, and is formed of, for example, a metal plate material.
  • the drive control circuit board 57 is a circuit board on which a controller for controlling the liquid crystal display panel 10 and the light source 53 is constructed.
  • the drive control circuit board cover 57a is a member that covers the drive control circuit board 57, and is formed of, for example, a metal plate.
  • the assembly structure of the display device 1 including such a member is as follows.
  • the reflection sheet 52 is disposed on the surface side of the chassis 51.
  • a light source 53 is disposed on the surface side, and a side holder 54 is disposed so as to cover the end of each light source 53.
  • the optical sheet 55 is arranged on the front side, the back frame 20 is arranged on the front side, the liquid crystal display panel 10 is positioned and arranged, and the front frame 30 is arranged on the front side of the liquid crystal display panel. To do.
  • the front frame 30 is locked to the back frame 20 to support the liquid crystal display panel, and the front frame 30 is assembled to the chassis 51 to arrange the illumination module on the back side of the liquid crystal display panel 10.
  • a light source drive circuit board 56 and a drive control circuit board 57 are disposed on the back side of the chassis 51.
  • the light source drive circuit board 56 and each light source 53 are electrically connected, and the drive control circuit board 57 and the source drive circuit board 12S mounted on the liquid crystal display panel 10 are provided.
  • the gate drive circuit board 12G is electrically connected. Then, the light source drive circuit board cover 56a is attached so as to cover the light source drive circuit board 56, and the drive control circuit board cover 57a is attached so as to cover the drive control circuit board 57.
  • FIG. 12 is an exploded perspective view showing a schematic configuration of the television receiver 2 according to the embodiment of the present invention.
  • the television receiver 2 includes a display device 1 according to an embodiment of the present invention, a tuner 71, a loudspeaker 73, a power source 72, cabinets 74a and 74b, and a support rod. And material 75.
  • the tuner 71, the loudspeaker 73, the power source 72, the cabinets 74al and 74b, and the support member 75 those conventionally used in general can be applied, so that each will be briefly described and detailed description thereof will be omitted.
  • the tuner 71 generates an image signal and an audio signal of a predetermined channel from the received radio wave.
  • a conventional general terrestrial tuner analog terrestrial tuner, digital terrestrial tuner, or both
  • BS tuner, CS tuner, or the like can be applied.
  • the loudspeaker 73 emits voice based on the voice signal generated by the tuner 71.
  • a general speaker or the like can be applied.
  • the power source 72 can supply power to the display device 1, the tuner 71, the loudspeaker 73, and the like according to the embodiment of the present invention.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un dispositif d'affichage constitué de telle sorte qu'il peut être facilement confirmé si un panneau d'affichage maintenu entre un cadre avant et un cadre arrière est correctement positionné ou non. Dans le dispositif d'affichage (1), le bord périphérique du panneau d'affichage (10) est maintenu entre le cadre avant (30) et le cadre arrière (20). Une partie de positionnement (22) pour positionner le panneau d'affichage (10) est disposée sur le cadre arrière (20) et des fenêtres d'ouverture (34) permettant de visualiser la partie de positionnement (22) du cadre arrière (20) sont disposées dans le cadre avant (30). Par conséquent, même dans un état dans lequel le panneau d'affichage (10) est maintenu entre le cadre avant (30) et le cadre arrière (20), il peut être confirmé si le panneau d'affichage (10) est positionné de façon précise ou non à la partie de positionnement (22) du cadre arrière (20).
PCT/JP2007/066280 2006-11-27 2007-08-22 Dispositif d'affichage et poste de télévision WO2008065788A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-318456 2006-11-27
JP2006318456 2006-11-27

Publications (1)

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WO2008065788A1 true WO2008065788A1 (fr) 2008-06-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562585A1 (fr) * 2011-08-23 2013-02-27 Samsung Electronics Co., Ltd. Appareil d'affichage
WO2014117401A1 (fr) * 2013-01-31 2014-08-07 深圳市华星光电技术有限公司 Structure de localisation de film et module de rétro-éclairage associé
KR20180085377A (ko) * 2018-07-12 2018-07-26 삼성디스플레이 주식회사 표시 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002006291A (ja) * 2000-06-27 2002-01-09 Toshiba Corp 液晶表示装置
JP2006235127A (ja) * 2005-02-23 2006-09-07 Sharp Corp 液晶表示装置
JP2007286396A (ja) * 2006-04-18 2007-11-01 Mitsubishi Electric Corp 液晶表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002006291A (ja) * 2000-06-27 2002-01-09 Toshiba Corp 液晶表示装置
JP2006235127A (ja) * 2005-02-23 2006-09-07 Sharp Corp 液晶表示装置
JP2007286396A (ja) * 2006-04-18 2007-11-01 Mitsubishi Electric Corp 液晶表示装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562585A1 (fr) * 2011-08-23 2013-02-27 Samsung Electronics Co., Ltd. Appareil d'affichage
US8821000B2 (en) 2011-08-23 2014-09-02 Samsung Display Co., Ltd. Display apparatus
US9668363B2 (en) 2011-08-23 2017-05-30 Samsung Display Co., Ltd. Display apparatus
US10281755B2 (en) 2011-08-23 2019-05-07 Samsung Display Co., Ltd. Display apparatus
WO2014117401A1 (fr) * 2013-01-31 2014-08-07 深圳市华星光电技术有限公司 Structure de localisation de film et module de rétro-éclairage associé
KR20180085377A (ko) * 2018-07-12 2018-07-26 삼성디스플레이 주식회사 표시 장치
KR101984135B1 (ko) 2018-07-12 2019-05-31 삼성디스플레이 주식회사 표시 장치

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