KR200335223Y1 - Display - Google Patents

Abstract

The present invention relates to a display device having a CRT provided with a panel on which an image is formed, comprising: a plurality of coupling lugs provided on an outer circumferential surface of the CRT; A front cover provided at the front of the CRT and having an opening opened to expose the panel, and a front cover having a plurality of fastening bosses provided to be fastened to the coupling lugs, the rear cover of the front cover being in contact with the coupling lugs. Protruding, characterized in that the lug support ribs formed to be pressed by the coupling lug when the coupling lug is fastened to the fastening boss is provided. Thereby, it is possible to prevent excessive contact between the opening of the front cover and the panel of the CRT without using a separate component, and to prevent the gap between the opening and the panel from spreading even during long time use.

Description

Display device {DISPLAY}

The present invention relates to a display device, and more particularly, to a display device having an improved fastening structure for fastening a CRT.

In general, a display device is a general term for an image forming apparatus that forms an image, such as a TV or a computer monitor, and uses a display device such as a CATHODE-RAY TUBE or an LCD (LIQUID CRYSTAL DISPLAY).

In the following description, a display device equipped with a CRT will be described.

CRT uses the principle that different amounts of electron beams hit the monochromatic or RGB (Red, Green, Blue) fluorescent materials coated on the surface of the panel according to the intensity of the video signal to produce different brightness or colors. It is widely used because it is economical and excellent in terms of price and display performance.

1 is an exploded perspective view of a CRT provided in a conventional display device. As shown in this figure, the conventional display apparatus 101 includes a CRT 110 forming an image, a front cover 120 provided in front of the CRT 110 and coupled to the CRT 110, and a front cover. A rear cover (not shown) provided at the rear of the 120 is included.

The CRT 110 is provided along the outer circumferential surface of the panel 111 to fasten the panel 111 to form an image, an electron gun 116 provided at the rear of the panel 111 to generate an electron beam, and the front cover 120. A coupling lug (LUG) 113 is included.

The front cover 120 has an opening formed to expose the panel 111 of the CRT 110 and is coupled to the opening 121 provided to contact the edge of the panel 111 by a coupling lug 113 and a screw 130. It includes a fastening boss 122 provided to be.

The coupling lug 113 has a predetermined tolerance when it is mounted on the outer circumferential surface of the panel 111, and the opening 121 is opened when the coupling lug 113 is mounted to the fastening boss 122 by such a tolerance. The rubber washer 125 is provided between the coupling lug 113 and the fastening boss 122 so as not to contact excessively.

However, such a conventional display apparatus 101 has a separate component such as a rubber washer 125 so that the opening 121 is not excessively contacted with the panel 111 when the CRT 110 is coupled to the front cover 120. When the rubber washer 125 is compressed between the coupling lug 113 and the fastening boss 122 for a long time, its elasticity is lost and the fastening force of the screw 130 is weakened, so that the opening 121 and the panel 111 are weakened. There may be a gap between the.

Accordingly, an object of the present invention is to provide a display device that can prevent the front cover and the panel of the CRT from being in excessive contact without using a separate component, and prevent the gap between the front cover and the panel from spreading. .

1 is an exploded perspective view of a conventional display device;

2 is a perspective view of a display device according to the present invention;

3 is a rear exploded perspective view of the display device of FIG. 2;

4 is a partial perspective view of the front cover and the CRT disassembled in the display device of FIG. 3;

5 and 6 are partial cross-sectional view of the CRT coupled to the display device of FIG.

* Explanation of symbols for the main parts of the drawings

1: display device 5: rear cover

10: CRT 11: Panel

12: coupling band 13: coupling lug

14 fastener 16 electron gun

20: front cover 21: opening

22: fastening boss 23: fastening part

24: reinforcing rib 25: lug support rib

26: inclined portion 27: depression

30: screw

The above object is, according to the present invention, a display device having a CRT having a panel on which an image is formed, comprising: a plurality of coupling lugs provided on a panel outer circumferential surface of the CRT; A front cover provided at the front of the CRT and having an opening opened to expose the panel, and a front cover having a plurality of fastening bosses provided to be fastened to the coupling lugs, the rear cover of the front cover being in contact with the coupling lugs. Protruding from the display device, characterized in that the lug support ribs are formed to be pressed down by the coupling lug when the coupling lug is fastened to the fastening boss.

Here, the rear surface of the front cover is provided with a reinforcing rib formed to support the fastening boss, the lug support rib is preferably provided at the end of the reinforcing rib.

The lug support rib preferably includes an inclined portion formed obliquely on the upper surface in contact with the coupling lug.

Preferably, the reinforcing ribs protrude from the rear surface of the front cover to the same height as the fastening boss.

Preferably, the thickness of the lug support rib is about 1.5 mm, and the height of the lug support rib is preferably about 2 mm or more.

The lug support rib is preferably injection molded integrally with the front cover.

Hereinafter, with reference to the accompanying drawings will be described in detail for the subject innovation.

As shown in FIGS. 2 to 4, the display device 1 according to the present invention includes a CRT 10 forming an image and a front cover 120 provided in front of the CRT 10 and coupled to the CRT 10. ) And a rear cover 5 provided at the rear of the front cover 120.

The CRT 10 mounts a panel 11 on which an image is formed, a plurality of coupling lugs 13 provided on an outer circumferential surface of the panel 11, and a coupling lug 13 on an outer surface of the panel 11. And a coupling band 12 provided for the purpose, and an electron gun 16 provided behind the panel 11 to generate an electron beam.

The front cover 20 has an opening formed to expose the panel 11 of the CRT 10 and an opening 21 provided to contact the edge of the panel 11 and a plurality of fastenings provided to be engaged with the coupling lug 13. And a boss 22. In addition, the front cover 20 protrudes in contact with the coupling lug 13 at its rear surface, and is formed to be pressed by the coupling lug 13 when the coupling lug 13 is fastened to the fastening boss 22 to be recessed. It further includes a lug support rib 25. In addition, the rear surface of the front cover 20 is preferably provided with a reinforcing rib 24 formed to support the fastening boss 22.

The coupling lugs 13 are provided in four so as to be mounted on the outer circumferential edges of the side surfaces of the panel 11 by the coupling bands 12. When the coupling lug 13 is mounted on the outer circumferential surface of the panel 11, the coupling lug 13 has a predetermined height tolerance based on the surface of the panel 11, and the height tolerance of the coupling lug 13 varies slightly depending on the manufacturer. In the embodiment of the present invention, it is assumed to be about 1.5MM. In addition, a fastening hole 14 is provided in the central region of the coupling lug 13 so that the screw 30 passes therethrough.

The fastening boss 22 is formed to protrude in four to correspond to each coupling lug 13 on the rear surface of the front cover 20, the fastening portion 23 is provided to be fastened by a screw 30 in the central region. .

The reinforcing rib 24 protrudes on the rear surface of the front cover 20, is formed to be in contact with the fastening boss 22 to support the fastening boss 22, and serves to reinforce the shape of the front cover 20. do. And, the reinforcing ribs 24 are provided in plurality on the side of the fastening boss 22, the coupling lug 13 is lower than or equal to the height of the fastening boss 22 so as not to contact when fastened to the fastening boss 22. It is preferable to protrude to a height of a degree. In the embodiment of the present invention, the reinforcing ribs 24 are formed to protrude to the same level as the height of the fastening boss 22.

Four lug support ribs 25 are provided to correspond to each coupling lug 13, and the lug support ribs 25 are preferably provided on the reinforcing ribs 24 so as to be in contact with the coupling lugs 13, and among the plurality of reinforcing ribs 24. More preferably, the upper end of the reinforcing rib 24 provided to be in contact with the end of the coupling lug 13 is provided. In addition, the lug support rib 25 preferably has a small thickness so that the lug support rib 25 is recessed by the coupling lug 13 pressed by the fastening force of the screw 30 when the coupling lug 13 is fastened to the fastening boss 22. It is preferable that the thickness of the lug support rib 25 is about 1.5 mm. In addition, the lug support rib 25 is an upper end portion of the reinforcing rib 24 protruding to the same level as the height of the fastening boss 22 in consideration of the height tolerance of the coupling lug 13 as an embodiment of the present invention. It is preferable to be formed at a height of about 2.0MM, and of course may protrude to about 2.0MM or more. In addition, the lug support rib 25 preferably has an inclined portion 26 so that the upper surface contacting the end of the coupling lug 13 is inclined so that the lug support rib 25 can be easily recessed when the coupling lug 13 is pressed. . In addition, the inclined portion 26 is pressed when the coupling lug 13 is fastened to the fastening boss 22 so that the panel 11 of the CRT 10 contacts the opening 21 of the front cover 20. A depression 27 is formed. In addition, the lug support rib 25 is preferably integrally injection molded like the front cover 20.

By such a configuration, a process of mounting the CRT 10 provided in the display apparatus 1 according to the present invention will be described with reference to FIGS. 5 and 6 as follows.

First, the coupling lug 13 provided on the CRT 10 is positioned on the fastening boss 22 provided on the rear surface of the front cover 20, and then the screw 30 is connected to the fastening hole 14 of the coupling lug 13. It passes through and is inserted into the fastening part 23 of the fastening boss 22. At this time, the panel 11 of the CRT 10 is not in contact with the opening 21 of the front cover 20 but is spaced apart (see FIG. 5). Then, when the screw 30 is rotated and fastened to the fastening portion 23 of the fastening boss 22, the end of the coupling lug 13 presses the inclined portion 26 of the lug support rib 25 to sink. (See Figure 6). Then, when the panel 11 comes into contact with the opening 21, the rotation of the screw 30 is stopped to complete the fastening of the front cover 20 and the CRT 10 so that the opening 21 and the panel 11 are excessive. The contact lug can be prevented, and the lug support rib 25 can support the coupling lug 13 to a certain height even in a long time use, thereby preventing the gap between the opening 21 and the panel 11 from spreading.

Accordingly, the display device according to the present invention is provided with a lug support rib which is in contact with the coupling lug on the rear surface of the front cover and is formed to be pressed down by the coupling lug when the coupling lug is fastened to the fastening boss, thereby providing a conventional rubber washer. It is possible to prevent an excessive contact between the opening of the front cover and the panel of the CRT without using a separate component, and to prevent the gap between the opening and the panel even when used for a long time.

As described above, according to the present invention, it is possible to prevent an excessive contact between the opening of the front cover and the panel of the CRT without using a separate part, and to prevent the gap between the opening and the panel even after long time use. .

Claims (7)

A display device having a CRT provided with a panel on which an image is formed, A plurality of coupling lugs provided on a panel outer circumferential surface of the CRT; A front cover provided in front of the CRT and having an opening opened to expose the panel, and a plurality of fastening bosses fastened to the coupling lugs, And a lug support rib protruding from the rear surface of the front cover to be in contact with the coupling lug and being pressed by the coupling lug when the coupling lug is engaged with the coupling boss. The method of claim 1, And a reinforcing rib formed on the rear surface of the front cover to support the fastening boss, and the lug supporting rib is provided at an end of the reinforcing rib. The method of claim 2, Lug support ribs display device characterized in that it comprises an inclined portion formed inclined on the upper surface in contact with the coupling lug. The method of claim 3, And the reinforcing rib protrudes from the rear surface of the front cover to the same height as the fastening boss. The method of claim 4, wherein And a thickness of the lug support rib is approximately 1.5 mm. The method of claim 5, And a height of the lug support rib is about 2 mm or more. The method according to any one of claims 1 to 6, The lug support rib is integrally injection molded like the front cover.