JP2004138937A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which is simple in structure and facilitates assembly work and maintenance work. <P>SOLUTION: The display device is so constituted, functioning as a means to solve the conventional problems, that a side face cover member 4 is freely attachable to and detachable from a cover main body 3 and a base frame 2, the base frame 2 is freely attachable to and detachable from the cover main body 3 by sliding in a right or a left direction, and backlights 61, 62 are freely attachably and detachably arranged on the bottom part of mounting grooves 21a, 21b of a top frame 21 and a bottom frame 22. Also, the display device is so constituted, functioning as a means to solve the conventional problems, that the base frame 2 is freely detachable from the cover main body 3 by sliding in right or left direction, and the top frame 21, bottom frame 22, left frame 23, and right frame 24 have recessed parts respectively along the longitudinal direction, and a speaker substrate 7 and a circuit board 8 are freely attachably and detachably arranged in the recessed part. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a flat panel display device.
[0002]
[Prior art]
As a conventionally known display device, for example, in Japanese Patent Application Laid-Open No. H11-25909, an engagement groove is provided in an outer casing of an image marking device, and a decorative frame (cover material) is slidably engaged with the engagement groove by sliding a decorative frame (cover material). Japanese Patent Application Laid-Open No. H11-258599 discloses a structure in which a backlight body is first held in a frame, and a liquid crystal cell is inserted and fixed in a groove separately provided in the frame.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional display device, for example, in the structure disclosed in Japanese Patent Application Laid-Open No. H11-25909, an engagement groove is provided in an outer casing of an existing image marking device so that an engagement ridge of a cover material is formed. Since the slide is inserted, the cover material can be easily attached and detached, but there is no disclosure about attachment of a backlight, a circuit board, a speaker, and the like. In Japanese Patent Application Laid-Open No. H11-258599, a backlight assembly in which a backlight body is fixed to a frame is provided with an insertion groove for a liquid crystal cell to facilitate insertion and assembly of the liquid crystal cell. There is a problem that can not be. Conventionally, there has been a problem that it takes a long time for these assembling operations or maintenance operations, and it has been a conventional problem to solve these problems.
[0004]
[Object of the invention]
The present invention has been made in view of the above-mentioned conventional problems, and the structure of the frame and the cover material is simple including the mounting portion of the device attached to the image display board such as the backlight, the circuit board, and the speaker board. It is an object of the present invention to provide a display device that can easily perform assembling work and maintenance work.
[0005]
[Means for Solving the Problems]
The invention described in claim 1 covers a base frame framed by upper, lower, left and right frames, a backlight of an image indicating board, a circuit board, a speaker board, and an image indicating board attached to the base frame, and an upper frame of the base frame. A cover body comprising a cover material, a lower cover material covering the lower frame, and a back cover material connecting the upper and lower cover materials, and left and right side cover materials covering side surfaces of the cover body and the base frame; The upper, lower, left and right frames have a mounting groove on the inner peripheral side for swallowing the end of the image marking board, the side cover material is detachable from the cover body and the base frame, and the base frame is in the left-right direction from the cover body. The backlight has a configuration in which the backlight is detachably disposed at the bottom of the mounting groove of the upper and lower frames as a means for solving the above-mentioned conventional problems.
[0006]
The invention according to claim 2 covers a base frame framed by upper, lower, left and right frames, a backlight of an image indicating board, a circuit board, a speaker board, and an image indicating board attached to the base frame, and an upper frame of the base frame. A cover body comprising a cover material, a lower cover material covering the lower frame, and a back cover material connecting the upper and lower cover materials, and left and right side cover materials covering side surfaces of the cover body and the base frame; The upper, lower, left and right frames have a mounting groove on the inner peripheral side for swallowing the end of the image marking board, the side cover material is detachable from the cover body and the base frame, and the base frame is in the left-right direction from the cover body. The upper and lower frames and the left and right frames of the base frame have recesses along the longitudinal direction thereof, the circuit board is detachably mounted in the recesses of the upper and lower frames, and the speaker board is formed of the left and right frames. Removably placed in the recess And a means for solving the conventional problems described above with a certain configuration.
[0007]
Effect of the Invention
According to the first aspect of the present invention, the base frame is framed by the upper, lower, left and right frames, and has a mounting groove on the inner peripheral side of the upper, lower, left and right frames to swallow the end of the image display board. In the state where the left and right ends of the image marking base are swallowed and fixed in the groove, the engaged portions provided at the upper and lower ends in the longitudinal direction of the left and right frames are respectively engaged with the engaging portions provided at the left and right longitudinal ends of the upper and lower frames. Can be inserted and abutted, and the base frame can be easily assembled. In addition, the backlight mounted on the upper and lower sides of the image display base is detachably arranged at the bottom of the mounting groove of the upper and lower frames, so it can be easily assembled even after the base frame is assembled, and the base frame is disassembled during maintenance Since there is no need to perform the maintenance, a great effect that the maintenance work can be easily performed is obtained. Further, the base frame is provided detachably by sliding from the cover body in the left-right direction, and the side cover material is provided detachably with respect to the cover body and the base frame. Also, the effect that the assembling of the side cover material is facilitated is obtained.
[0008]
According to the second aspect of the present invention, the base frame is framed by the upper, lower, left and right frames, and has a mounting groove on the inner peripheral side of the upper, lower, left and right frames to swallow the end of the image marking board. In the state where the left and right ends of the image marking base are swallowed and fixed in the groove, the engaged portions provided at the upper and lower ends in the longitudinal direction of the left and right frames are respectively engaged with the engaging portions provided at the left and right longitudinal ends of the upper and lower frames. Can be inserted and abutted, and the base frame can be easily assembled. In addition, since the circuit board is detachably installed in the recesses of the upper and lower frames, and the speaker board is detachably installed in the recesses of the left and right frames, the circuit board and the speaker board can be easily positioned even after the base frame is assembled. It is possible to perform the work of assembling and wiring connection, and it is not necessary to disassemble the base frame at the time of maintenance, so that a great effect that the maintenance work can be easily performed is obtained. Further, the base frame is provided detachably by sliding from the cover body in the left-right direction, and the side cover material is provided detachably with respect to the cover body and the base frame. Also, the effect that the assembling of the side cover material is facilitated is obtained.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 is an exploded perspective view showing the first embodiment of the display device of the present invention as viewed from the left front side. The cover body 3 and the side cover of the base frame 2 after assembly are shown in the upper part of FIG. A state diagram before assembling with the members 4 and 4 is shown, and a lower part on the right side is a perspective view showing an overall appearance after assembling the display device 1 of the present embodiment. FIG. 2 is an exploded perspective view showing a base frame 2 constituting a main part of the display device 1 of the present embodiment as viewed obliquely from the right rear side, and an exploded view of the base frame 2 is shown in the upper part of FIG. In the lower part of the center, an exploded perspective view showing a state after assembling the base frame 2 and before assembling the circuit board 8 and the speaker boards 7, 7 is shown. 3 is an enlarged cross-sectional view taken along line AA of the display device 1 shown in FIG. 1, and FIG. 4 is an enlarged cross-sectional view taken along line CC of the display device 1 shown in FIG. FIG. 3 is a partially enlarged perspective view showing details of a butt engagement portion between a right frame 24 of the base frame 2 shown in FIG. 2 and an upper frame 21 and a lower frame 22. As shown in FIGS. 1 and 2, the display device 1 according to the embodiment of the present invention holds the four circumferences of the image display board 5 with a base frame 2 formed by an upper frame 21, a lower frame 22, a left frame 23, and a right frame 24. The upper and lower backlights 61 and 62, the left and right speaker boards 7, 7 and the circuit board 8 are assembled to the base frame 2 to form a base body 3 formed by an upper cover material 31, a lower cover material 32 and a rear cover material 33. The frame 2 is slid and inserted from the side, and side cover members 4 are fixed to both sides of the base frame 2 with screws. The upper frame 21, the lower frame 22, the left frame 23 and the right frame 24 constituting the base frame 2 and the upper cover material 31, the lower cover material 32 and the rear cover material 33 surrounding the outer periphery of the display device 1 are all light metal alloys. The extruded profile of the system is used. The side cover member 4 is also made of a light metal alloy material.
[0011]
As shown in FIGS. 1 and 3, the rear cover member 33 is provided with a fitting ridge 33 a and a fitting groove 33 b which are fitted and integrated with the upper cover material 31 and the lower cover material 32 at both upper and lower ends. At the lower rear end of the cover member 31 and at the upper rear end of the lower cover member 32, a fitting groove portion 31 a that fits and integrates with the fitting ridge portion 33 a and the fitting groove portion 33 b of the back cover material 33, respectively. The upper cover material 31, the lower cover material 32, and the rear cover material 33 are provided with the fitted grooves 31a, 32a and the fitting protrusions 33a, respectively. The fitting projections 31b, 32b and the fitting groove 33b are fitted together and integrated to form the cover body 3. The upper cover member 31 has an upper frame storage portion 31c which opens downward, slides and inserts the upper frame 21 in the longitudinal direction, and swallows the lower cover member 32. It has a lower frame storage part 32c for sliding and swallowing.
[0012]
As shown in FIG. 3, the upper frame 21 and the lower frame 22 have mounting grooves 21 a and 22 a respectively opening on the inner peripheral surface side of the base frame 2, and the upper backlight 61 is inserted into the mounting groove 21 a, The lower end of the image display board 5 is swallowed and fixed, while the lower backlight 62 is inserted into the mounting groove 22a. In addition, a concave portion (upper wiring insertion portion) 21b that opens substantially in a U-shape toward the rear side is provided on the outer peripheral side of the upper frame 21. The outer peripheral side of the lower frame 22 is substantially directed toward the rear side. A concave portion (lower wire insertion portion) 22b that opens in a U-shape is provided. On the front side and the back side of the upper frame 21 and the lower frame 22, a plurality of protrusions slidably contacting the inner surfaces of the upper frame storage portion 31c and the lower frame storage portion 32c, respectively. A ridge is provided.
[0013]
As shown in FIG. 4, the left frame 23 and the right frame 24 have mounting grooves 23 a and 24 a respectively opened on the inner peripheral surface side of the base frame 2, and are provided so as to swallow and fix both left and right end portions of the image display board 5. In addition, a concave portion (left speaker mounting portion) 23b and a concave portion (right speaker mounting portion) 24b are respectively provided on the front side. A pair of fixed fins 23c, 23c and 24c, 24c are respectively provided on the front side of the openings of the left speaker attachment portion 23b and the right speaker attachment portion 24b so as to extend from the left and right side edges of the opening and to extend on the same surface. And functions to fix the speaker substrates 7 attached to the left speaker attachment portion 23b and the right speaker attachment portion 24b. Also, as shown in FIGS. 2 and 5, the joint between the left frame 23 and the right frame 24 and the upper frame 21 is such that the fixed fins 23 c, 23 c and 24 c, 24 c of the left frame 23 and the right frame 24 face the upper frame 21. The plurality of upper frames 21 slidably provided on the inner surface of the upper frame storage portion 31c of the upper cover member 31 so that the uncut and extended upper extension pieces 23d, 23d and 24d, 24d are inserted therethrough. Notches 21d, 21d, 21d, 21d are provided in the rear lower protrusion 21c of the protrusion, and the upper end surfaces of the left frame 23 and the right frame 24 contact the lower surface of the upper frame 21 and extend upward. The pieces 23d, 23d and 24d, 24d are inserted into the notches 21d, 21d, 21d, 21d, and extend to the lower end of the opening of the upper wiring insertion portion 21b of the upper frame 21, and the upper extension pieces 23d, 23d, and 24d , 24d It is provided with a left frame 23 and right frame 24 and upper frame 21 so as to abut fixed by screws from the back side in the contact surface between the back side surface side and the upper frame 21. Similarly, the joint between the left frame 23 and the right frame 24 and the lower frame 22 is formed by extending the fixed fins 23c, 23c and 24c and 24c of the left frame 23 and the right frame 24 to the lower frame 22 side. Of the plurality of ridges of the lower frame 21 slidably provided on the inner surface of the lower frame storage portion 32c so that the extension pieces 23e, 23e and 24e, 24e are inserted therethrough. Notches 22d, 22d, 22d, 22d are provided in the rear upper ridge portion 22c, and the lower end surfaces of the left frame 23 and the right frame 24 contact the upper surface of the lower frame 22, and the lower extension pieces 23e, 23e and 24e, 24e is inserted into the cutouts 22d, 22d, 22d, 22d, and extends to the upper end of the opening of the lower wiring insertion portion 22b of the lower frame 22, and the front and lower sides of the lower extension pieces 23e, 23e and 24e, 24e. Frame 22 By screws from the back side at the contact surface between the side it is provided with a left frame 23 and right frame 24 and lower frame 22 so as to contact stationary.
[0014]
Hereinafter, the assembling procedure will be described step by step with reference to FIGS.
[0015]
As shown in FIG. 2, the image marking base 5 is inserted and fixed at predetermined positions in the mounting groove 23 a of the left frame 23 and the mounting groove 24 a of the right frame 24, and is fixedly held between the left frame 23 and the right frame 24. Next, the upper extension pieces 23d, 23d of the left frame 23 and the upper extension pieces 24d, 24d of the right frame 24 are inserted into the cutouts 21d, 21d, 21d, 21d of the upper frame 21 to make the lower surface of the upper frame 21 The upper ends of the frame 23 and the right frame 24 are brought into contact with each other, and the upper frame 21 and the left frame 23 and the right frame 24 are screwed and fixed with the base frame fixing screws 8a. Further, the lower extension pieces 23e, 23e of the left frame 23 and the lower extension pieces 24e, 24e of the right frame 24 are inserted into the cutouts 22d, 22d, 22d, 22d of the lower frame 22, and the upper surface of the lower frame 22 and the left. The lower ends of the frame 23 and the right frame 24 are brought into contact with each other, and the lower frame 22 and the left frame 23 and the right frame 24 are screwed and fixed with the base frame fixing screws 8a. Since the end faces of the mounting groove 21a of the upper frame 21 and the mounting groove 22a of the lower frame 22 are exposed on the side surfaces of the base frame 2 assembled in the above steps, the upper backlight 61 is mounted on the mounting groove 21a of the upper frame 21. The lower backlight 62 is inserted into the mounting groove 22a of the lower frame 22 from the side of the base frame 2 and fixed to the predetermined position by being inserted from the side of the base frame 2. The speaker base 7 is inserted into the speaker mounting portion 23b of the left frame 23 and fixed at a predetermined position where the left and right ends of the rear surface engage the fixing fins 23c of the left frame 23. The speaker base 7 is mounted on the speaker mounting portion 24b of the right frame 24. Is fixed by inserting it into a predetermined position where the left and right ends of the front surface engage the fixing fins 24c of the right frame 24. Further, the circuit board 8 is inserted and fixed at a predetermined position of the lower wiring insertion portion 22b of the lower frame 22, and finally, the wiring is assembled.
[0016]
Through the above steps, the steps of assembling the image indicating board 5, the upper backlight 61 and the lower backlight 62, the circuit board 8, and the left and right speaker boards 7, 7 on the base frame 2 are completed. From the side of the cover body 3 formed by fitting the upper cover member 31, the lower cover member 32 and the rear cover member 33, the upper frame 21 is placed in the upper frame storage portion 31c, and the lower frame 22 is placed in the lower frame storage portion 32c. The base frame 2 is inserted into the cover body 3 so as to be respectively accommodated, and finally, the side cover members 4 and 4 are brought into contact with the left and right side surfaces, and are fixed by screws with the cover member fixing screws 8b. Then, the assembly of the display device 1 is completed. The display apparatus 1 assembled in this manner is screwed and fixed with the cover material fixing screw 8b when maintenance of the upper backlight 61 and the lower backlight 62, or the circuit board 8 and the left and right speaker boards 7, 7 is required. If the side cover material 4 is removed, the base frame 2 can be easily pulled out, and the base frame 2 can be easily removed without removing the base frame fixing screws 8a. 2 and the left and right speaker boards 7 and 7 and the circuit board 8 are also easy to be pulled out and removed from the rear side of the base frame 2, or attached, and the wiring is replaced. Maintenance is also easy.
[0017]
In addition, in the frame material of the conventional display device, as a measure for reducing the interference (EMI) due to the electromagnetic wave generated from the display device itself, a shield material is vapor-deposited or attached on the back surface of the frame, so that the cost increases, In addition, although recycling was difficult, in the display device of the first embodiment of the present invention assembled as described above, the upper frame 21, the lower frame 22, the left frame 23, and the Since the right frame 24, the upper cover material 31, the lower cover material 32, the rear cover material 33, and the side cover material 4 surrounding the outer periphery of the display device 1 are all made of a light metal alloy material, the upper and lower frames 21, A joint surface between the upper cover member 31 and the lower cover member 32 and the rear cover member 33; a joint surface between the left and right frames 23 and 24; The joining surfaces of the cover member 32 and the back cover member 33 and the side cover member 4 are joined without applying a coating film, so that the entire display device is covered with an integral light metal body, and the constituent material itself has It can provide a display device that is extremely effective in EMI countermeasures utilizing the high electromagnetic wave shielding effect. In addition, since the light metal alloy material itself is a highly recyclable material, it can be used for the resource recovery required by home appliance manufacturers. This has a great effect that the burden can be reduced. Also, for example, for joining the upper and lower cover members 31 and 32 and the back cover member 33, the parts forming the frame of the display device are formed by using the extruded shape members and the joining method by fitting as described above. It can be subdivided, so that it is possible to reduce the repair cost when the frame is damaged, and also to obtain the effect that the product can be easily disassembled and transported during recycling.
[0018]
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the assembling procedure of the base frame is not limited to the above-described procedure, and the upper and lower backlights are first installed at predetermined positions of the upper and lower frames, or the left and right speaker boards are installed at predetermined positions of the left and right frames first. Then, the image marking base, the left and right frames, and the upper and lower frames may be assembled. Further, the image display substrate used in the display device of the present invention described above is not limited to an LCD (liquid crystal display) substrate, but may be a PDP (plasma display panel), an FED (field emission display), an organic EL display, or the like. Signing base can be applied.
[0019]
【The invention's effect】
As described above, in the invention according to claim 1 of the present invention, assembling of the base frame is facilitated, and installation and maintenance work of the backlight mounted on the upper and lower sides of the image display board can be easily performed. In addition, there is obtained a great effect that the work of assembling the cover body and the side cover material to the base frame is simple and easy.
[0020]
According to the invention of claim 2 of the present invention, it is possible to obtain a very excellent effect that the assembling of the base frame is facilitated, and the work and maintenance of assembling, positioning, and wiring connection of the circuit board and the speaker board can be easily performed. Further, a great effect is obtained that the work of assembling the cover body and the side cover material to the base frame is simple and easy.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a display device according to a first embodiment when viewed from a diagonally left front side.
FIG. 2 is an exploded perspective view showing a base frame portion of the display device of the first embodiment when viewed from a diagonally right rear side.
FIG. 3 is an enlarged cross-sectional view taken along the line AA of the display device shown in FIG. 1;
FIG. 4 is an enlarged view of a part of the display device shown in FIG.
5 is a partially enlarged view showing details of a joint between a right frame and an upper and lower frame of a base frame of the display device shown in FIG. 2;
[Explanation of symbols]
Reference Signs List 1 display device 2 base frame 21 upper frame 22 lower frame 23 left frame 24 right frames 21a, 22a, 23a, 24a mounting groove 21b recess (upper wiring insertion portion)
22b recess (lower wiring insertion part)
23b recess (left speaker mounting part)
24b recess (right speaker mounting part)
21c Lower back projection 22c of upper frame Upper back projection 23c, 24c of lower frame Fixed fins 21d, 22d Notches 23d, 24d Upper extension pieces 23e, 24e Lower extension piece 3 Cover body 31 Upper cover material 32 Lower cover material 33 Back cover material 4 Side cover material 5 Image display board 61 Upper backlight 62 Lower backlight 7 Speaker board 8 Circuit board

Claims (2)

Base frame framed by upper, lower, left and right frames, image marking board, circuit board, speaker board, and backlight of image marking board attached to the base frame, upper cover material covering the upper frame of the base frame, and lower covering the lower frame A cover body composed of a back cover material that connects the cover material and the upper and lower cover materials, and a left and right side cover material that covers the side surfaces of the cover body and the base frame, and the upper, lower, left and right frames of the base frame are on the inner peripheral side. It has a mounting groove for swallowing the end of the image marking base, the side cover material is detachable with respect to the cover body and the base frame, and the base frame is slidable from the cover body in the left-right direction and detachable, A display device, wherein a backlight is detachably disposed at the bottom of the mounting groove of the upper and lower frames. Base frame framed by upper, lower, left and right frames, image marking board, circuit board, speaker board, and backlight of image marking board attached to the base frame, upper cover material covering the upper frame of the base frame, and lower covering the lower frame A cover body composed of a back cover material that connects the cover material and the upper and lower cover materials, and a left and right side cover material that covers the side surfaces of the cover body and the base frame, and the upper, lower, left and right frames of the base frame are on the inner peripheral side. It has a mounting groove for swallowing the end of the image marking base, the side cover material is detachable with respect to the cover body and the base frame, and the base frame is slidable from the cover body in the left-right direction and detachable, The upper and lower frames and the left and right frames of the base frame have concave portions along the longitudinal direction, the circuit board is detachably mounted in the concave portions of the upper and lower frames, and the speaker substrate is detachably disposed in the concave portions of the left and right frames. Data Spray equipment.

Images