JP2008145870A - Display device - Google Patents

Abstract

A display device capable of preventing the backlash of the panel without being affected by the contraction of the support frame body, ensuring the holding rigidity of the pressing body, and corresponding to the narrowing of the support frame body. provide.
A support frame for supporting a peripheral edge of a panel, a fixed frame for pressing and mounting the peripheral edge of the panel to the support frame, and pressing the panel in a direction along a display surface. And a pressing body 7 having an elastic member 72 and a locking portion 73 and pivotally attached to the support frame 2 so as to be rotatable in a direction along the display surface 1a. By providing the support frame body 2 with the locked portion 26 that can be engaged with the lock portion 73 at the pressing position to be attached, the backlash of the panel 1 is prevented without being affected by the contraction of the support frame body 2. I did it.
[Selection] Figure 1

Description

  The present invention relates to a display device such as a liquid crystal display device, a plasma display device, an SED display, and an EL display.

  A display device such as a television has a display surface on the front side, a support frame that supports a peripheral portion of a rectangular panel, a fixed frame that presses and fixes the peripheral portion of the panel to the support frame, And a cushioning material that is held at a corner of the support frame and can come into contact with the corner of the panel. After the cushioning material is held at a corner of the support frame, the panel is supported by the support frame. There is known a display device configured to determine the position of the panel relative to the support frame body by being mounted on (see, for example, Patent Document 1).

Further, the panel of the display device is made of glass, whereas the support frame that supports the panel is integrally formed of synthetic resin, so that the weight of the entire display device is reduced.
Japanese Patent No. 3691791

  When the support frame is made of a synthetic resin as described above, the shrinkage rate due to the temperature of the support frame is relatively large. For example, the ambient temperature when a relatively large support frame is integrally formed, and the panel When the ambient temperature when the is supported by the support frame is different, the gap between the cushion material held at the corner of the support frame and the outer peripheral edge of the panel is reduced by the contraction of the support frame However, it may be difficult to place and support the panel on the support frame. In addition, when the support frame and the cushion material are formed in anticipation of the reduction in the gap, the gap between the cushion material and the outer peripheral edge of the panel is large depending on the ambient temperature when the panel is supported by the support frame. As a result, the position of the panel cannot be determined, and a backlash occurs in the panel.

  By the way, the applicant of the present invention has a guide groove that penetrates in the direction along the display surface of the panel in the support frame body that supports the peripheral portion of the panel, and has a pressing portion that presses the panel in the direction along the display surface. The pressing body is movably held in the guide groove, and the pressing body is moved in the direction along the display surface along the guide groove, thereby pressing the panel in the direction along the display surface and determining the support position of the panel. A display device configured to prevent the backlash of the panel without being affected by the shrinkage of the support frame has been previously proposed.

  However, in this display device, since it is necessary to secure a movement stroke for moving the pressing body from the non-pressing position to the pressing position in the guide groove of the support frame body, the holding rigidity of the pressing body can be ensured. In addition, there is a problem in reducing the width of the frame portion of the support frame, and an improvement measure has been demanded.

  The present invention has been made in view of such circumstances, and a main object thereof is to pivotally attach a pressing body capable of rotating in a direction along the display surface of the panel to a support frame, and to return the rotation of the pressing body. By providing a restricting means that regulates the movement, it is possible to prevent panel backlash without being affected by the shrinkage of the support frame, and to secure the holding rigidity of the pressing body, thus supporting the narrowing of the support frame. It is an object of the present invention to provide a display device that can do the above.

  Another object is to provide a structure for holding the pressing body by integrally forming a pivot that pivotally attaches the pressing body and a retaining portion that prevents the pressing body from being pulled out of the pivot. It is possible to provide a display device that can hold the pressing body without increasing the number of parts.

  Another object is to provide a locking portion on one of the support frame and the pressing body, and a locked portion capable of engaging with the locking portion on the other to prevent the panel from rattling. It is an object of the present invention to provide a display device that can reliably maintain the above.

  Another object of the present invention is to reliably maintain the state of preventing the panel from rattling by integrally providing a pressing portion at a position facing the pressing body of the fixed frame body that presses and fixes the peripheral edge portion of the panel to the support frame body. An object of the present invention is to provide a display device that can be used.

  The display device according to the present invention includes a pressing unit that presses the panel in a direction along the display surface, the display device including a support frame that supports a peripheral portion of the panel having the display surface. A pressing body capable of rotating in a direction along the axis is pivotally attached to the support frame body, and is provided with a restricting means for restricting return of rotation of the pressing body.

  In this invention, the pressing body pivotally attached to the support frame is operated to rotate, so that the pressing body is brought into contact with the peripheral edge of the panel without being affected by the contraction of the support frame. Can prevent rattling. In addition, since the support frame can have a frame width sufficient to pivotally attach the pressing body, the holding rigidity of the pressing body can be ensured and the width of the support frame can be reduced.

  In the display device according to the present invention, the support frame is integrally formed with a pivot for pivotally mounting the pressing body and a retaining portion for preventing the pressing body from being pulled out from the pivot. And

  In this invention, since the pivot and the retaining portion are integrally formed on the support frame, the structure for holding the pressing body is simple, and the pressing body can be held without increasing the number of parts.

  Further, in the display device according to the present invention, the restricting means includes a locking portion provided on one of the support frame body and the pressing body, and a locking position at which the pressing body presses the panel. It has the locked part provided in the other so that it can combine, It is characterized by the above-mentioned.

  In this invention, since the locking part and the locked part are engaged at the pressing position where the pressing body presses the panel, and the return rotation of the pressing body can be restricted, the panel is prevented from rattling. Can be reliably maintained.

  In addition, the display device according to the present invention includes a fixed frame body that presses and fixes a peripheral edge portion of the panel to the support frame body, and the restricting means is integrated with a portion of the fixed frame body facing the pressing body. It has the press part which shape | molds and presses this pressing body to the said panel, It is characterized by the above-mentioned.

  In this invention, when the fixed frame body presses the peripheral portion of the panel supported by the support frame body and fixes it to the support frame body, the pressing portion of the fixed frame body comes into contact with the press body, and the press body Since the rotation of the pressing body can be restricted by pressing the panel against the panel, the backlash prevention state of the panel can be reliably maintained.

  As described above in detail, according to the present invention, the pressing body pivotally attached to the support frame body is operated to rotate so that the pressing body is brought into contact with the peripheral edge of the panel and is affected by the contraction of the support frame body. The backlash of the panel can be prevented, the holding rigidity of the pressing body can be ensured, and the width of the support frame can be reduced.

  Further, according to the present invention, the structure for holding the pressing body is simple, and the pressing body can be held without increasing the number of parts.

  Moreover, according to this invention, since the return rotation of a pressing body can be controlled with a latching | locking part and a to-be-latched part, the backlash prevention state of a panel can be maintained reliably.

  In addition, according to the present invention, the pressing portion of the fixed frame body presses the pressing body against the panel, and the return rotation of the pressing body can be restricted, so that the state of preventing the panel from rattling can be reliably maintained. it can.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. 1 is a cross-sectional view showing a configuration of a part of a display device according to the present invention, FIG. 2 is a front view showing the configuration of a support frame of the display device, FIG. 3 is a front view showing the configuration of the main part, and FIG. 3 is a cross-sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is a cross-sectional view showing a configuration of a main part.

  The illustrated display device has a display surface 1a for displaying a television image, a panel 1 having a substantially square shape when viewed from the front, a support frame 2 made of a synthetic resin that supports the peripheral edge of the panel 1 and the rear surface of the peripheral edge, and the panel A fixed frame 3 that contacts the front surface of the peripheral edge 1 and presses and fixes the rear surface of the peripheral edge of the panel 1 to the support frame 2, a backlight chassis 4 that forms a box that supports the support frame 2, and the backlight A plurality of lamps 5 housed and supported in the light chassis 4, an optical sheet 6 such as a diffuser plate, which is disposed between the lamps 5 and the panel 1 and diffuses light emitted from the lamps 5, and a direction along the display surface 1a And a pressing body 7 which is pivotally attached to the support frame 2 so as to be capable of rotating to the side and abuts the peripheral edge of the panel 1 and presses the panel 1 in a direction along the display surface 1a.

  The support frame 2 is in contact with the rear surface of the peripheral portion of the panel 1, and the upper and lower portions are connected to the long side annular plate portion 21 and the outer peripheral edge of the annular plate portion 21, and the frame portion is opposed to the peripheral edge of the backlight chassis 4. 22 and is integrally formed of synthetic resin. The upper lateral ends and the upper and lower ends of the one side are recessed portions in which the pivot 23 extending forward from the ring plate portion 21 and the continuous portion of the ring plate portion 21 and the frame portion 22 are recessed inward. 24, a through hole 25 that penetrates the recess 24 along the ring plate portion 21, and a locked portion 26 that is continuous with the hole edge of the through hole 25 are integrally formed.

  Extending projections 21 a and 21 b extending forward are integrally formed on the lower part and the other side part of the ring plate part 21, and the lower extension projecting part 21 a bears the load of the panel 1, and the other side part. The projecting convex portion 21b is configured to restrict movement of the panel 1 in the other direction, and a plurality of portions of the ring plate portion 21 are attached to the peripheral portion of the backlight chassis 4 by a plurality of screws. It is configured. An elastic body 8 that elastically receives the panel 1 is attached to the front surface of the ring plate portion 21.

  The pressing bodies 7 and 7 for pressing the panel 1 to the lower projecting convex portion 21a are pivotally attached to the pivots 23 and 23 at both upper lateral ends. The pivots 23 and 23 at the upper and lower ends of one side are pivoted. Further, pressing bodies 7 and 7 for pressing the panel 1 against the extended convex portion 21b on the other side are pivotally attached. At the shaft end of the pivot shaft 23, two convex retaining portions 23 a extending radially outward are equally arranged so that the pressing body 7 can be prevented from being pulled out from the pivot shaft 23. Yes.

  FIG. 6 shows the structure of the pressing body, where (a) is a front view, (b) is a side view, (c) is a bottom view, and (d) is a rear view. FIG. 7 is a perspective view showing the configuration of the pressing body from which the elastic member is omitted. The pressing body 7 has a plate-like substantially rectangular shape, is opened at one end portion in the longitudinal direction, and is made of rubber that is held on one side in the width direction of the shaft hole 71 inserted into the pivot 23 and the other end portion. The elastic member 72 and a locking portion 73 extending so as to face the elastic member 72 from the other side in the width direction. The elastic member 72 constitutes a pressing portion that presses the panel 1 in the direction along the display surface 1a.

  The shaft hole 71 has two grooves 71a corresponding to the retaining portion 23a and quarter-circular rotation restricting recesses 71b, 71b connected to the groove 71a, and the shaft hole 71a is inserted into the groove 71a. When the pivot shaft 23 is inserted into the hole 71, the retaining portion 23a extracts the groove 71a, and the pressing member 7 is rotated in this state, so that the retaining portion 23a is moved approximately 90 along the rotation restricting recesses 71b and 71b. The elastic member 72 is brought into contact with the peripheral edge of the panel 1 by this rotation, and the panel 1 is configured to be pressed against the extended convex portions 21a and 21b on the lower and other side portions.

  The fixed frame 3 is made of a metal plate, and a pressing plate 31 that faces the ring plate 21 of the support frame 2, and extends rearward from the outer edge of the pressing plate 31, and the frame 22 of the support frame 2. And a plurality of pressing plate portions 31 are attached to the ring plate portion 21 of the support frame 2 with screws. Further, when the fixed frame 3 is fitted onto the support frame 2 and the panel 1 is pressed and fixed to the ring plate portion 21, the frame portion 32 approaches the other side in the width direction of the pressing body 7, and the pressing body 7. Is prevented from rotating inadvertently. An elastic body 9 that elastically presses the panel 1 is provided inside the pressing plate portion 31.

  The backlight chassis 4 has a box shape having a frame portion 41 that forms a rectangular parallelepiped and a lid plate 42 that closes the rear side end of the frame portion 41, and a plurality of frame portions 22 of the support frame body 2 are provided at the periphery. It is attached with a screw. The backlight chassis 4 contains a holder 10 that holds both ends of the lamp 5 and a reflection sheet 11 that reflects light emitted from the lamp 5 to the panel 1.

  The display device configured as described above includes the optical sheet 6 and the pressing body 7 in the holder 10 after the reflection sheet 11, the holder 10, and the lamp are accommodated and held in the backlight chassis 4 placed on the gantry. The support frame 2 is placed and supported, and the frame portion 22 of the support frame 2 is attached to the frame portion 41 of the backlight chassis 4 by a plurality of screws. Next, the panel 1 is placed on and supported by the annular plate portion 21 of the support frame 2, and in other words, the fixed frame 3 is fitted over the periphery of the panel 1, in other words, the support frame 2. Thereafter, the frame portion 32 of the fixed frame 3 is attached to the frame portion 21 of the support frame 2 with a plurality of screws.

  FIG. 8 is an explanatory view showing a state in which the pressing body is pivotally attached to the pivot of the support frame. In such an assembly process, when the panel 1 is supported by the support frame 2, the peripheral edge of the panel 1 is brought into contact with the lower extending convex portion 21a and the other extending convex portion 21b, and the panel 1 After determining an appropriate position, the shaft hole 71 of the pressing body 7 is fitted into the pivot 23 of the support frame 2, and the pressing body 7 is pivotally attached to the pivot 23. By rotating the pressing body 7 to the panel 1 side, the locking portion 73 is inserted into the through hole 25 through the recess 24 and the elastic member 8 presses the upper edge and one side edge of the panel 1. . Therefore, it is possible to prevent the vertical and lateral rattling of the panel 1 without being affected by the contraction of the support frame 2, and the locking portion 73 is engaged with the locked portion 26 and pressed. The rotational return of the body 7 can be restricted, and the pressing position of the pressing body 7 can be maintained.

  When the pressing body 7 presses the panel 1, the retaining portion 23 a of the pivot 23 is engaged with the rotation restricting recess 71 b, and the pressing body 7 can be prevented from being pulled out from the pivot 23. Therefore, the rotation operation, in other words, the pressing operation can be easily performed, and the rotation restricting recess 71b restricts the rotation of the pressing body 7 by rotating about 90 degrees. It is possible to prevent the pressing force from being applied.

  FIG. 9 is a cross-sectional view showing another configuration of the main part of the display device according to the present invention. This display device is provided with a locking portion 73 on the pressing body 7 as a restricting means for restricting the rotational return of the pressing body 7, and the locked portion 26 to which the locking portion 73 engages is provided on the support frame 2. Instead of providing, a pressing portion 33 that presses the pressing body 7 against the panel 1 is integrally formed at a location facing the pressing body 7 of the fixed frame 3.

  In this embodiment, the pressing body 7 is turned to the pressing position side, and the fixed frame 3 is fitted onto the support frame 2 in a state where the travel amount of the pressing body 7 with respect to the support frame 2 is reduced. In doing so, the pressing portion 33 of the fixed frame 3 abuts on the other side in the width direction of the pressing body 7, and the pressing body 7 can be rotated to the pressing position. Therefore, the latching | locking part 73 and the to-be-latched part 26 can be eliminated, and a structure can be simplified further.

  In the embodiment described above, the pivot 23 is provided in the support frame 2 and the shaft hole 71 is provided in the pressing body 7 as means for pivotally attaching the pressing body 7. The shaft hole 71 may be provided in the support frame 2.

  Further, in the embodiment described above, the pressing body 7 is pivotally attached to the upper part and one side part of the support frame 2 formed in a rectangular parallelepiped. In addition, the pressing body 7 includes the upper part and both side parts of the support frame 2. It is good also as a structure provided in each other, and it is good also as a structure provided in each both ends and intermediate part other than providing in the horizontal direction both ends of an upper part, and the upper and lower ends of one side part.

  Further, in the embodiment described above, the pressing portion 33 is provided on the frame portion 32 of the fixed frame body 3. However, the pressing portion 33 is provided on the other side in the width direction of the pressing body 7, and the fixed frame body 3 is The frame portion 32 may be configured to come into contact with the pressing portion 33 and press the pressing portion 33 when being fitted to the support frame 2.

  In addition to the liquid crystal display device such as a liquid crystal television, the display device according to the present invention may be a display device such as a plasma display device or an EL display.

It is sectional drawing which shows the structure of a part of display apparatus which concerns on this invention. It is a front view which shows the structure of the support frame of the display apparatus which concerns on this invention. It is a front view which shows the structure of the principal part of the display apparatus which concerns on this invention. It is sectional drawing of the IV-IV line of FIG. It is sectional drawing which shows the structure of the principal part of the display apparatus which concerns on this invention. 1 shows a configuration of a pressing body of a display device according to the present invention, in which (a) is a front view, (b) is a side view, (c) is a bottom view, and (d) is a rear view. It is a perspective view which shows the structure of the pressing body which abbreviate | omitted the elastic member of the display apparatus which concerns on this invention. It is explanatory drawing which shows the state by which the pressing body of the display apparatus which concerns on this invention was pivotally attached to the pivot of the support frame. It is sectional drawing which shows the other structure of the principal part of the display apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel 1a Display surface 2 Support frame 23 Pivot 23a Stop part 26 Locked part (regulation means)
3 fixed frame 33 pressing part (regulation means)
7 Pressing body 72 Elastic member (pressing part)
73 Locking part (regulating means)

Claims (4)

  In a display device including a support frame that supports a peripheral portion of a panel having a display surface, the display device includes a pressing portion that presses the panel in a direction along the display surface, and can be rotated in a direction along the display surface. A display device, characterized in that a pressing body is pivotally attached to the support frame body, and includes a restricting means for restricting the return of rotation of the pressing body.   The display device according to claim 1, wherein the support frame is integrally formed with a pivot for pivotally attaching the pressing body and a retaining portion for preventing the pressing body from being pulled out from the pivot.   The restricting means is provided on the other of the locking portion provided on one of the support frame and the pressing body, and on the other side so that the pressing body can be engaged with the locking portion at a pressing position where the pressing body presses the panel. The display device according to claim 1, further comprising a locked portion.   A fixing frame that presses and fixes a peripheral edge of the panel against the support frame; and the restricting means is integrally formed at a location facing the pressing body of the fixing frame, and the pressing body is attached to the panel. The display device according to claim 1, further comprising: a pressing portion that presses.

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