JP2006337976A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a front cabinet to be temporarily fixed to a panel module and to enable a back cabinet and the front cabinet to be coupled and fixed while maintaining the state of the temporary fixing. <P>SOLUTION: In a display device, a front cabinet 2 which encloses the peripheral part of a panel module 1 having a display surface 11a at its front side is configured to have a ring part 21 to which the peripheral part of the back cabinet 3 covering the back side of the panel module 1 is coupled, a cylinder part 22 which runs in line with the outer peripheral part of the ring part 21 and covers the peripheral part of the back cabinet 3, and a part to be engaged 23 which is provided by being projected at a position separated from the inner surface of the cylinder part 22 to the center side of the display surface, and the front cabinet 2 is temporarily fixed to the panel module 1 by providing an engaging part 12b with which the part to be engaged 23 is engaged in the panel module 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device such as a liquid crystal display device or a plasma display device.

  A display device such as a television includes a panel module having a display surface for displaying an image on the front side, a front cabinet that surrounds the peripheral edge of the panel module, and a back cabinet that covers the rear side of the panel module (for example, Patent Document 1). In this display device, a locking part is provided at the upper part of the back cabinet, a screw coupling part is provided at the lower part, a locked part is provided at the upper part of the front cabinet, and a screw coupling part is provided at the lower part. . And the latching | locking part of a back cabinet is latched by the to-be-latched part of a front cabinet, a back cabinet and a front cabinet are temporarily connected, and a back cabinet and a screw | thread coupling | bond part of a front cabinet are couple | bonded with a screw. The front cabinet is connected and fixed.

By the way, the panel module of the display device incorporates a panel body having a display surface, a backlight unit disposed on the back side of the panel body, and electrical components such as a circuit board and a power supply board for maintenance. The electric parts can be repaired by removing the back cabinet.
JP-A-9-65250

  However, in Patent Document 1, when the back cabinet is removed to perform maintenance of electrical components or the like, the locking of the locked portion and the coupling of the screw coupling portion are released, respectively, and the front cabinet easily falls. Therefore, in a relatively large display device, it is difficult to repair electric parts while maintaining the state in which the front cabinet is prevented from falling, and the operation of connecting the back cabinet to the front cabinet after the repair work. There is a problem that it is difficult to do. Further, in the assembly process, when the back cabinet is coupled to the front cabinet that surrounds the peripheral portion of the panel module, there is a problem that it is difficult to perform the operation of coupling the back cabinet to the front cabinet in a state in which the front cabinet is prevented from overturning. .

  The present invention has been made in view of such circumstances, and a main purpose thereof is a ring portion in which a peripheral portion of a back cabinet is coupled, and a cylindrical portion that is connected to the outer peripheral portion of the ring portion and covers the peripheral portion of the back cabinet. The front cabinet has a locked portion protruding from the inner surface of the tube portion toward the center of the display surface, and the panel module has the locked portion locked by the locked portion. By having the configuration, it is possible to temporarily fix the front cabinet to the panel module, and to provide a display device capable of coupling and fixing the back cabinet and the front cabinet while maintaining the temporarily fixed state. .

  Another object is to hold the peripheral edge of the panel body with the display surface, and the panel module has a holding frame that has a locking part at the edge, and the locked part is attached to the ring part of the front cabinet. With this configuration, it is an object of the present invention to provide a display device that can use an existing panel module and can attach a locked portion to an existing front cabinet.

  Another object is to have a structure in which a plurality of ribs project from the ring portion of the front cabinet, and the locked portion is a flexible body having one end attached to the rib and the other end having a hook. Accordingly, it is an object of the present invention to provide a display device that can simplify the temporary fixing of the front cabinet and improve the workability of assembling the front cabinet.

  The display device according to the present invention includes a panel module having a display surface on a front side, a front cabinet that surrounds a peripheral portion of the panel module, and a back cabinet that covers a rear side of the panel module. The cabinet is connected to the ring portion to which the peripheral portion of the back cabinet is coupled, the outer peripheral portion of the ring portion, the cylindrical portion covering the peripheral portion of the back cabinet, and the center of the display surface from the inner surface of the cylindrical portion. The panel module has a locking portion to which the locked portion is locked.

  According to the present invention, in the step of assembling the front cabinet, the front cabinet can be temporarily fixed to the panel module by locking the locked portion of the front cabinet to the locking portion of the panel module. The back cabinet and the front cabinet can be coupled and fixed while maintaining the fixed state. Therefore, even if vibration and impact are applied to the front cabinet after the front cabinet is fitted into the panel module and before the front cabinet is attached, the temporarily fixed state of the front cabinet can be maintained. It is possible to improve the workability of the front cabinet.

Further, when the front cabinet and the back cabinet are assembled, the peripheral portion of the back cabinet is concealed by the cylindrical portion of the front cabinet, so that the peripheral portion of the back cabinet can be prevented from being seen outside, and the display device The external shape can be simplified.
In addition, when performing maintenance of electrical parts, etc., with the back cabinet removed, the front cabinet can be maintained in a temporarily fixed state, so that maintenance can be easily performed without worrying about the front cabinet falling down. Efficiency can be improved.

  In the display device according to the present invention, the panel module includes a panel main body having a display surface, a holding frame body that holds a peripheral portion of the panel main body, and has the engaging portion at an edge. The locking portion is attached to the ring portion.

  In the present invention, since the existing panel module can be used and the locked portion can be attached to the existing front cabinet, the front cabinet can be obtained by newly adding the locked portion. Can be temporarily fixed, and an increase in cost due to temporary fixing can be reduced.

  Further, in the display device according to the present invention, the ring portion is provided with a plurality of ribs, and the locked portion is a flexible body having one end attached to the rib and the other end having a hook. It is characterized by being.

  According to the present invention, the locked portion can be attached to the rib without making a mistake in the attachment location, and the locked portion is locked to the locking portion while the locked portion is bent. Therefore, the temporary fixing can be simplified and the assembling workability of the front cabinet can be improved.

  As described above in detail, according to the present invention, the front cabinet can be temporarily fixed to the panel module, and the back cabinet and the front cabinet can be coupled and fixed while maintaining the temporarily fixed state. In the installation process, it is possible to improve the assembly workability of the front cabinet, and when removing the back cabinet and performing maintenance of electrical parts, maintenance can be easily performed without worrying about the front cabinet falling. , Can improve maintenance efficiency. Moreover, since the peripheral part of the back cabinet can be concealed by the cylindrical part of the front cabinet, the peripheral part of the back cabinet can be prevented from being seen outside, and the external shape of the display device can be simplified. .

  In addition, according to the present invention, an existing panel module can be used, and furthermore, the locked portion can be attached to the existing front cabinet, so that the cost can be increased by temporarily fixing the front cabinet. Can be reduced.

  Further, according to the present invention, the locked portion can be attached to the rib without making a mistake in the attachment location, and further, the locked portion can be locked to the locking portion while bending the locked portion. Therefore, the temporary fixing can be simplified, and the assembly workability of the front cabinet can be improved.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a schematic perspective view of the back side showing the configuration of the display device according to the present invention, FIG. 2 is a schematic perspective view of the back side of the disassembled display device, FIG. 3 and FIG. FIG. 6 is an enlarged perspective view in which a part is disassembled.

  The illustrated display device has a display surface for displaying a television image on the front side, a panel module 1 that forms a rectangular parallelepiped, a front cabinet 2 that forms a square surrounding the peripheral portion of the panel module 1, and a rear side of the panel module 1. It is a liquid crystal television provided with the back cabinet 3 to cover and the stand 4 which supports the panel module 1 in an upright state, in other words, a liquid crystal display device.

  The panel module 1 includes a panel main body 11 having a rectangular parallelepiped shape having a display surface 11a on the front side, a rectangular holding frame 12 holding the peripheral edge of the panel main body 11, and an optical element disposed on the back side of the panel main body 11. Sheet 13, backlight unit 16 having a plurality of fluorescent tubes 14 and reflectors 15 disposed on the back side of optical sheet 13, and electrical components such as a circuit board and a power supply substrate disposed on the back side of backlight unit 16 17. The panel body 11, the optical sheet 13, and the backlight unit 16 are incorporated in an attachment frame body 18 having an L-shaped cross section, and the attachment frame body 18 is held in the holding frame body 12.

  The electrical component 17 is attached to the back surface of the backlight unit 16. The holding frame 12 has an L-shaped cross section and is connected to a plate-shaped ring portion 12a covering the peripheral edge of the display surface 11a, in other words, the ring plate portion and the outer peripheral portion of the ring portion 12a, and the edge will be described later. It has a rectangular tube portion 12c as a locking portion 12b to which the locked portion 23 is locked.

  The front cabinet 2 has an L-shaped cross section, and is connected to a plate-like ring portion 21 that covers the ring portion 12a of the panel module 1, in other words, the ring plate portion and the outer peripheral portion of the ring portion 21. It has a quadrangular cylindrical portion 22 that covers the peripheral edge portion, and a plurality of locked portions 23 that protrude from the inner surface of the cylindrical portion 22 toward the center of the display surface 11a. The locked portions 23 are provided at three locations, that is, the upper lateral end portions of the front cabinet 2 and the lower lateral end portion.

  On the inner side of the ring portion 21, pedestal ribs 24 and coupling ribs 25 are integrally projected at a plurality of circumferential positions. Screw holes 24a and 25a are provided on end surfaces of the ribs 24 and 25, respectively. The locked portion 23 is a flexible body made of a synthetic resin having one end attached to the rib 24 by the machine screw 5 and the other end having a hook 23a.

  The back cabinet 3 includes a dish-shaped cover part 31 that covers the electrical component 17 and the like, a flange part 32 that continues to the periphery of the dish-shaped cover part 31, and a rectangular tube part 33 that continues to the periphery of the flange part. At a plurality of circumferential positions corresponding to the ribs 25 of the flange portion 32, mounting seats 34 having through holes 34a are integrally provided. When the mounting seats 34 abut against the end surfaces of the ribs 25, the back cabinet 3 is accommodated in the cylindrical part 22, and the peripheral part of the back cabinet 3 is concealed by the cylindrical part 22.

  The stand 4 has a base part 41 placed on a mounting table or the like and two leg parts 42 and 42 erected on the base part 41, and the upper part of the leg parts 42 and 42 is the back side of the panel module 1. It is attached so that it can be removed.

  In the display device configured as described above, the standing state of the panel module 1 is maintained by the stand 4 attached to the back side of the panel module 1, and the cylindrical portion 22 of the front cabinet 2 is maintained in the standing state of the panel module 1. Is fitted around the peripheral edge of the panel module 1, and the three locked portions 23 are locked to the locking portions 12 b of the holding frame 12. By this locking, the front cabinet 2 can be temporarily fixed to the panel module 1. In this temporarily fixed state, the back cabinet 3 is fitted to the back side of the backlight portion 16, and the machine screw 6 is inserted into the through hole 34 a of the mounting seat 34 in a state where the mounting seat 34 is in contact with the end surface of the rib 25, The back cabinet 3 and the front cabinet 2 are coupled and fixed by tightening the machine screw 6 into the screw hole 25a.

  Since the back cabinet 3 and the front cabinet 2 can be coupled and fixed in a state where the front cabinet 2 is temporarily fixed to the panel module 1 in this way, vibration and impact are generated while the front cabinet 2 is coupled and fixed. Even if it is added to the front cabinet 2, the temporarily fixed state of the front cabinet 2 can be maintained, and the assembling workability of the front cabinet 2 and the back cabinet 3 can be improved.

  In the display device assembled as described above, the peripheral portion of the back cabinet 3 is concealed by the cylindrical portion 22 of the front cabinet 2, and only the cylindrical portion 22 is visible, so that the external shape can be simplified.

  Further, since the front cabinet 2 is coupled and fixed to the back cabinet 3 while being temporarily fixed to the panel module 1, the electric power on the back side of the backlight unit 16 is maintained in a state where the standing state of the panel module 1 is maintained by the stand 4. When the back cabinet 3 is removed to perform maintenance of the parts 17 and the like, the temporarily fixed state of the front cabinet 2 can be maintained, and the front cabinet 2 can be prevented from falling. Therefore, it is possible to easily perform maintenance without worrying about the overturning of the front cabinet 2, and it is possible to improve the maintenance efficiency of the electrical components 17 and the like.

FIG. 7 is an enlarged cross-sectional view of a main part showing another embodiment of the display device according to the present invention. In this display device, a locking portion 19 having a hook 19 a is provided in the panel module 1, and a locked portion 26 to be locked to the locking portion 19 is provided inside the ring portion 21 of the front cabinet 2. is there. One end of the locking portion 19 is integrally formed with the cylindrical portion 12c, and the other end is made of a metal plate having a hook 19a. The locking portion 19 is bent when the locked portion 26 is locked to the hook 19a. It is configured. The locked portion 26 projects from the inside of the ring portion 21.
Since other configurations and operations are the same as those of the embodiment shown in FIGS. 1 to 6, the same components are denoted by the same reference numerals, and detailed descriptions and descriptions of operations and effects are omitted.

  In the embodiment described above, the locked portions 23 and 26 are provided at the three locations of the ring portion 21 of the front cabinet 2, but the number of the locked portions 23 and 26 is not particularly limited.

  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 a schematic perspective view of the back side which shows the structure of the display apparatus which concerns on this invention. It is a schematic perspective view of the back side which decomposed | disassembled the display apparatus which concerns on this invention. It is an expanded sectional view of the important section of the display concerning the present invention. It is an expanded sectional view of the important section of the display concerning the present invention. It is the expansion perspective view which decomposed | disassembled some display apparatuses based on this invention. It is the expansion perspective view which decomposed | disassembled some display apparatuses based on this invention. It is an expanded sectional view of the principal part which shows other embodiment of the display apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel module 11 Panel main body 11a Display surface 12 Holding frame body 12c Locking part 2 Front cabinet 21 Ring plate part 22 Tube part 23 Locked part 23a Hook 24 Rib 3 Back cabinet

Claims (3)

  A display device comprising: a panel module having a display surface on the front side; a front cabinet that surrounds a peripheral portion of the panel module; and a back cabinet that covers the rear side of the panel module, wherein the front cabinet is a peripheral portion of the back cabinet Are connected to the outer peripheral portion of the ring portion, the cylindrical portion covering the peripheral edge portion of the back cabinet, and protruding from the inner surface of the cylindrical portion to the center side of the display surface. A display device, comprising: a locked portion; and the panel module having a locked portion where the locked portion is locked.   The panel module includes a panel main body having a display surface and a holding frame body that holds a peripheral portion of the panel main body and has the locking portion at an end edge, and the locked portion is attached to the ring portion. The display device according to claim 1.   The display device according to claim 2, wherein the ring portion is provided with a plurality of ribs, and the locked portion is a flexible body having one end attached to the rib and the other end having a hook.

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