KR100854150B1 - Combining structure of flat plastic material and display device using the same - Google Patents

Abstract

The coupling structure between the plate-shaped resin material article which concerns on this invention is a plate-shaped 1st resin material article; A plurality of deformation guide portions provided in the first resin article in a shape extending in the thermal expansion direction of the article; A plate-shaped second resin article aligned with the first resin article; A plurality of fixing portions formed at positions aligned with the deformation guide portions in the second resin article; And a fastening member fastened to the deformation guide part and the fixing part to fix the first resin material and the second resin material.

According to the present invention, the joining operation between the two articles provided in the resin material can be conveniently performed without difficulty. Of course, in the case of a display device, the external aesthetics can be further improved.

In addition, there is an advantage of reducing the defective rate of the product, lowering the defective rate of the product in the end, the manufacturing price is reduced, can reduce the labor of the operator to fasten both items at the production site, and prevents deformation of the produced product The external aesthetics of the product can be further improved. Furthermore, even if additional deformation occurs in the resin article, since these deformations can be reliably supported, there is an advantage that the stability of the product is improved.

display

Description

Combining structure of flat plastic material and display device using the same

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

2 is a view illustrating a coupling structure of a frame and a front cabinet of a display device according to the present invention.

3 is a cross-sectional view of II ′ of FIG. 2.

Figure 4 is a rear view of the corner of the front cabinet and frame in accordance with the present invention.

5 is a view for explaining another embodiment of the present invention.

6 is an exploded perspective view illustrating another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

3: front cabinet 5: frame 31: tension guide

32: long hole (deformation guide) 51: boss (fixed part)

The present invention relates to a bonding structure in which resinous articles provided in a plate form are bonded to each other, and a display device in which the resinous articles are bonded to each other. It relates to a display device to be applied.

In recent years, display devices have been increasing in size, and thus user convenience is increasing. In response to the enlargement of the display device, a case structure for accommodating and protecting the display module is being enlarged.

On the other hand, the case of the display device is generally injection molded in a single body of a resin material in order to improve the external aesthetics without seeing the division line, etc. in the part observed from the outside. In addition, the plurality of articles constituting the case is generally subjected to a process of overlapping or overlapping each other after a plurality of panels are manufactured for reinforcing strength or improving external aesthetics.

However, as the size of the display device increases, the number of panels forming the case of the display device also increases. When the size of the panel increases, the injection process is difficult, and the shrinkage deformation of the injection molded product Due to the problem of incomplete injection, there is a problem that the fastening between the panels is difficult.

In detail, since the positions of the coupling holes set in advance between the panels on both sides, for example, the screw insertion holes, are later distorted due to deformation of the injection molded product, the assembling workability between the two panels is inferior, thereby preventing interference assembly. Because of this, the panel is deformed. This problem is more prominent in the case of a front cabinet provided on the front of the display device and directly visible to the user, and the front cabinet forming the skeleton of the display device.

For example, when the assembly of the coupling tool formed in both of the frame and the front cabinet is distorted to force the assembly, the frame is deformed and the quality of the product is directly degraded. In particular, when gloss is applied to the surface of the frame, distortion of the reflected image is caused, and the aesthetics felt by the user is further reduced.

This problem becomes more frequent when using resin materials having different thermal strains as materials, and becomes more problematic when the display device becomes larger in size, and when the injection conditions for both resin materials are different. do. In more detail with respect to the injection conditions, the higher the injection pressure, the higher the temperature of the cooling water, or the higher the temperature of the outside air, the more the injection deformation amount, the more difficult the coupling operation between the two.

The present invention is proposed in order to solve the above problems, a coupling structure between the plate-shaped resin material article and the display device coupled to the structure that can be conveniently performed without any effort to combine the two articles provided with the resin material to provide.

In addition, by reducing the conditions of the injection operation of the article provided by the resin material, it is possible to reduce the defective rate of the product, and to combine the structure and the structure between the plate-shaped resin material article that lowers the defective rate of the product and eventually reduce the manufacturing price Provides a display device.

In addition, the present invention provides a coupling structure between the plate-shaped resin material article and the display device coupled to the structure that can reduce the labor of the operator for fastening both articles at the production site.

In addition, the present invention provides a bonding structure between the plate-shaped resin material article which can prevent deformation of the produced product to further improve the external aesthetics of the product, and a display device coupled with the structure.

The coupling structure between the plate-shaped resin material article which concerns on this invention is a plate-shaped 1st resin material article; A plurality of deformation guide parts provided in the first resin material article; A plate-shaped second resin article aligned with the first resin article; A plurality of fixing portions formed at positions aligned with the deformation guide portions in the second resin article; And a fastening member fastened to the deformation guide part and the fixing part to fix the first resin material article and the second resin material article, wherein the plurality of deformation guide parts are formed in the plate shape provided with the plurality of deformation guide parts. At the installation point of the first resin material article, the first resin material article is provided in a shape extending in a direction in which the first resin material article is thermally expanded and deformed with respect to the plate-shaped second resin material article to guide the fastening member. do.

According to another aspect of the present invention, a display device includes a frame; A front cabinet fixed to the back of the frame; A back cover fixed to the front cabinet; And a display module seated on a gap between the front cabinet and the back cover, formed on one of the frame and the front cabinet, and provided to have a shape extending in the expansion or contraction direction of the frame or the front cabinet. Deformation guide portion that is; A fixing part formed at the other side of the frame and the front cabinet at a position corresponding to the deformation guide part; And a fastening member inserted into the deformation guide part and the fixing part.

According to another aspect of the present invention, a display device includes a display module; A front cabinet protecting the front of the display module; A frame aligned with and coupled to the front cabinet; And a back cover protecting the rear of the display module, the boss being formed in the frame; And a long hole aligned with the boss, wherein the long hole is elongated in a shape extending along an extension line toward the center of the frame and the front cabinet where the long hole is located.

According to the present invention, the bonding between the plate-shaped resin materials can be conveniently performed, the deformation of the bonding structure due to the deformation of the resin materials after the bonding operation can be prevented, the defective rate of the products can be lowered, and the The manufacturing cost can be reduced, and operator convenience can be improved.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the accompanying embodiments, but can be easily proposed by adding, changing, deleting, and adding the constituent elements, but this will also be included within the scope of the present invention.

1 is a perspective view of a display device according to the present invention, Figure 2 is a view illustrating a coupling structure of the frame and the front cabinet of the display device according to the present invention.

Referring to FIG. 1, the display device 1 of the present invention includes a display module 2 on which an image is displayed, and a front cabinet 3 and a back cover which respectively protect the front and the rear of the display module 2. 4) and a frame 5 further provided on the front of the front cabinet 3 to enhance the appearance of the display device or to protect the edge of the display module 2.

In general, the frame 5 is a part observed at a glance by the user's naked eye of the display device, and the frame 5 is generally manufactured by injection using a resin material having good gloss and having a good texture. On the contrary, the front cabinet 3 generally uses a resin material of high strength rather than external gloss or texture in order to protect the display module 1 and to be able to strongly resist external shocks. to be. Thus, due to the difference in the purpose between both the frame 5 and the front cabinet 3, the two articles are the same as the resin material, but the materials are different from each other. For this reason, the amount of shrinkage according to the injection conditions of the resin material, the amount of deformation after injection molding, the amount of thermal expansion after molding, and the amount of deformation according to the season are different from each other. In addition, even if the resin material is the same, since the deformation amount is different depending on the injection conditions, it will cause difficulties in the later bonding.

A detailed embodiment of the present invention for overcoming such difficulties will be described with reference to FIG. 2.

FIG. 2 is a rear perspective view of the front cabinet and the frame coupled thereto, and referring to FIG. 2, a tension guide 31 protruding in the form of a distance back to the rear of the front cabinet 3 is provided. The tension guide 31 is provided with a long hole 32 in the shape extending in the deformation direction of the front cabinet and / or frame 3 at that point. In addition, the position of the front cabinet 3 in which the tension guide 31 is formed is opened, and the boss 51 formed in the frame 5 is inserted into the opened portion. In order to fasten the boss 51 and the tension guide 31 in this state, the fastening member 33 is inserted through the long hole 32 and the boss 51.

The long hole 32 which constitutes a feature of the present invention will be described in more detail. The longest hole 32 has the narrowest width so as to be equal to the width of the fastening member 33 so that the fastening member 33 can be inserted at any point. And, as described above, the long hole 32 preferably extends in the same direction as the direction in which the front cabinet 3 and the frame 5 are deformed during the overall deformation. More specifically, the long hole 32 extends from the geometric center of the front cabinet 3 and the frame 5 in the direction of extension of an imaginary line that forgets the center position of the long hole 32. In addition, in the general case, since the front cabinet 3 and the frame 5 are symmetric in both top, bottom, left and right, the geometric center may be approximately equal to the center of gravity of the front cabinet 3 and the frame 5. It will be easy to guess.

In addition, the fastening member 33 is generally a screw is applied, the head portion is provided in a size that can be caught on the upper surface of the tension guide 31 at any point of the long hole (32). To this end, the head may be enlarged or the width of the long hole may be narrowed. However, when the width of the long hole is narrowed, it should be noted that the boss 51 is not separated from the position of forming the long hole 32 when the frame 5 and the front cabinet 3 are deformed.

In addition, the tension guide 31 is provided in the shape as proposed, it is not preferable that the fastening member 33 to make a fastening hole to improve the external aesthetics of the frame 5, the tension By exerting a predetermined elastic force when the fastening member 33 is coupled by the guide 31, even if an impact is applied from the outside, the impact amount is absorbed by the tension guide 31 so as not to be connected to breakage of the component. It is for.

34, which is not shown, is a back cover side fastener, whereby the front cabinet 3 and the back cover 4 are fastened to each other.

3 is a cross-sectional view of II ′ of FIG. 2.

Referring to Figure 3, in detail the coupling structure between the plate-like resin material according to the present invention, the boss 51, the inside of which is empty in the injection molding integrally with the frame 5 protrudes upwards do. In addition, the front cabinet 3 has a tension guide 31 protruding upward, and the long hole 32 is formed in a form aligned with the boss 51 in the tension guide 31, and the long hole 32. ) And the fastening member 33 is inserted at the position where the boss 51 is aligned to fasten the tension guide 31 and the boss 51.

Here, the head of the fastening member 33 is caught by the tension guide 31 so that the boss 51 is firmly fixed to the tension guide 31 side. Since the tension guide 31 is provided in a bent shape, a certain amount of vibration is absorbed by the elastic deformation even when an impact is applied from the outside. Therefore, even if there is an external impact, the boss 51 and the tension guide 31 may have the effect of not being damaged.

Of course, since the boss 51 extends to the rear of the frame 5, no marks remain in front of the frame 5, so that the front appearance of the frame 5 (the appearance that the user observes) is more beautiful. There is an advantage to being terminated. In addition, since no force (for example, a side twisting force) is applied to the boss 51 except for the pulling force by the fastening operation of the fastening member 33, there is an advantage that small deformation does not occur.

4 is a rear view of a corner of the front cabinet and the frame according to the present invention. Although only one corner portion is shown in FIG. 4, it will be readily appreciated that this aspect may be applied to the entire plane of the front cabinet as it is.

In detail, it can be seen that four tension guides 311, 312, 313, 314 and four long holes 321, 322, 323, and 324 are shown on the back of the front cabinet 3. . Here, the tension guide may be assumed to be provided in the same aspect as a whole, but the long hole is provided in an aspect in which the shape thereof varies according to the formation position of the tension guide. The reason is that the long holes 32 are formed along the extending direction of the deformation direction of the front cabinet 3 and the frame 5 as already described.

In detail, the first long hole 321 is provided to be inclined downward by a predetermined angle toward the right. This is because the first long hole 321 is located above a predetermined distance with respect to the horizontal line of the center of the front cabinet 3, and the virtual center point of the front cabinet 3 is located below the right side. In addition, the second long hole 322 is provided to be inclined downward to the right side at a steeper angle than the first long hole 321. This is because the second long hole 322 is provided at a higher position than the first long hole 321. This aspect can be seen to be applied to the third long hole 323 as it is. Similarly, it can be seen that the fourth long hole 324 is more steeply provided.

On the other hand, the virtual lines extending in the longitudinal direction of the long holes 321, 322, 323, 324 can be understood to extend toward the same point. For example, as described above, since the front cabinet 3 and the frame 5 are formed symmetrically with each other in the up, down, left and right directions in the same shape as the shape of the display device, the imaginary line has a geometric center or It extends toward the center of gravity. Of course, its geometric center and center of gravity do not always coincide, but even so, its own extension of the long holes 321, 322, 323, 324 is the front cabinet 3 and the frame. The extension in the direction of the imaginary extension line connecting the tension guides 311, 312, 313 and 314 at the approximate center point of (5) remains the same.

On the other hand, although only one corner portion of the front cabinet 3 is described in FIG. 4, it is natural that the same aspect is provided along the entire edge of the front cabinet 3 and the frame 5.

As long holes are provided in such a shape in the display device of the present invention, both of the articles provided with the resin material, for example, the front cabinet and the frame, are different from the intended shape and position in production, for example, for various reasons. Even if the relative position of the boss 51 and the tension guide 31 is changed due to the difference in the amount of expansion due to the difference in material, the deformation due to the difference in injection conditions, and the deformation due to climatic requirements, the fastening member 33 The fastening operation of both members by can be carried out conveniently and stably without difficulty. When such a coupling structure is particularly applied to a display device, the flatness of the frame 5 is not lowered by an unintentional force generated by the coupling structure, for example, a force that pulls the frame laterally. Therefore, a better appearance can be obtained.

In addition, the conditions of the injection operation of the article provided with the resin material can be managed simply, it is possible to obtain the advantages of reducing the defective rate of the product, and eventually reduce the manufacturing price of the display device. Not only this, but also in terms of productivity, since the alignment between the items is easy, it is possible to facilitate the fastening operation of the two items of the resin material in the production site, there is an advantage that can reduce the labor of the operator.

However, the above-described embodiment can obtain the advantage that the convenience is enhanced during the assembly operation, there is a fear that the deformation occurs by the deformation of the resin material during use after production is finished.

Another embodiment of the present invention describes an embodiment in which a structure for preventing deformation of a resin material article which is generated later is further applied.

5 is a view for explaining another embodiment of the present invention, in which the same components are assigned the same reference numerals as the above-described embodiments, their descriptions are used only, and only those structures which are specifically applied to the other embodiments are illustrated. Explain with emphasis.

In another embodiment of the present invention, the washer 41 is further involved in the contact portion between the head of the fastening member 33 and the tension guide 31. The washer may be exemplified by two forge dish-washers, the main function of which is elastically deformed when tightening the tension guide 31 and the boss 51 by using the fastening member 33, thereby fastening the fastener. The friction force generated at the contact portion between the member 33 and the tension guide 31 is reduced.

By such a configuration, even if additional deformation occurs in the article made of resin and the relative position of the boss 51 and the tension guide 31 is further deformed, the position of the fastening member 33 is set by the washer 41. Since it can be moved along the boss 51, the force applied to the boss 51 is lost. Further, since the additional deformation generated in the frame 5 through the boss 51 is eliminated, it is possible to obtain the advantage that the appearance of the frame 5 is prevented from deteriorating, and furthermore, the damage of the boss 51 is also prevented.

Of course, it is natural that the deformation of the produced product is prevented to improve the external aesthetics of the product.

On the other hand, the above-described embodiments only show a form in which a long hole is formed on the side, for example, the front cabinet, into which the fastening member is inserted, and a boss is provided on the opposite side, for example, the frame. However, the present invention is not limited to this aspect, and in the reverse case, for example, a part for guiding deformation of the resin material such as a long hole may be formed on the opposite side to the side where the fastening member is inserted. Hereinafter, such an embodiment will be described in more detail.

6 is an exploded perspective view illustrating another embodiment of the present invention.

Referring to FIG. 6, the frame 5 is formed with an elongated wall portion 61 that is elongated in a similar shape to the long hole 32, and a circular hole 63 is formed in the front cabinet 3. In addition, the inner wall of the elongated wall portion 61 is formed with a pleat 62 so that when the fastening member 64 is inserted, it can be inserted into the inside of the early riding wall 61 to be fixed.

In addition, the wrinkle part 62 may be provided in a form in which a plurality of lines are formed independently of each other in a horizontal direction. In this way, the fastening member 64 can fix the long hole-shaped wall portion 61, and the fastening member 64 is the long hole-shaped wall portion 61 when there is a deformation of the additional resin material after the fastening member 64 is fixed. By being movable along the inner pleats 62, it is possible to actively cope with further deformation of the resin material article. To this end, the cross-sectional shape of the pleats 62 is preferably provided in a straight shape except for both ends. However, even if it is not, if the thread of the fastening member 64 can assume a certain degree of digging into the wrinkles may be provided to some degree elliptical, but since the deformation of the resin material is in a certain direction, the long hole type The inside of the wall portion 61 is preferably provided in a straight line.

Since the long hole 32 and the long wall portion 61 can guide the deformation even if there is a deformation of the resin material, the two holes may be collectively referred to as a deformation guide, and the circular hole 63 and the boss 51 may be referred to as a fixing part because it is a part directly used for fixing both articles made of a resin material.

The original embodiment and the other embodiment is an embodiment in which the deformation guide portion is provided on the side to which the fastening member is inserted, the fixing portion is provided on the opposite side, and the other embodiment is showing the reverse case, The idea of the present invention is rightly regarded as encompassing both cases.

Meanwhile, another embodiment may be further included in the spirit of the present invention. The tension guide may not be necessary, and the boss may be provided as another article corresponding thereto.

In addition, although the long hole is provided in an elliptical shape in the drawing, the specific shape is irrelevant as long as the extending direction of the long hole is toward the center of the front frame and the frame.

According to the present invention, the joining operation between the two articles provided in the resin material can be conveniently performed without difficulty. Of course, in the case of a display device, the external aesthetics can be further improved.

In addition, there is an advantage of reducing the defective rate of the product, lowering the defective rate of the product in the end, the manufacturing price is reduced, can reduce the labor of the operator to fasten both items at the production site, and prevents deformation of the produced product The external aesthetics of the product can be further improved.

Furthermore, even if additional deformation occurs in the resin article, since these deformations can be reliably supported, there is an advantage that the stability of the product is improved.

Claims (8)

A plate-shaped first resin material article; A plurality of deformation guide parts provided in the first resin material article; A plate-shaped second resin article aligned with the first resin article; A plurality of fixing portions formed at positions aligned with the deformation guide portions in the second resin article; And A fastening member fastened to the deformation guide part and the fixing part to fix the first resin material article and the second resin material article; The plurality of deformation guides are directions in which the first resin material is thermally expanded and deformed with respect to the plate-shaped second resin material at the installation point of the plate-shaped first resin material article provided with the plurality of deformation guide parts. It is provided in a shape extending to guide the fastening member, And said resin material article is a joining structure between plate-shaped resin material articles having a joining structure between plate-shaped resin material articles having different materials. delete The method of claim 1, The resin article is a coupling structure between the plate-shaped resin article in the shape of a rectangular frame. frame; A front cabinet fixed to the back of the frame; A back cover fixed to the front cabinet; And It includes a display module seated on the gap between the front cabinet and the back cover, A deformation guide part formed on the frame and provided to extend in a shape extending in an expansion or contraction direction of the frame or the front cabinet; A fixing part formed at the other side of the frame and the front cabinet at a position corresponding to the deformation guide part; And A fastening member inserted into the deformation guide part and the fixing part, And the deformation guide part is formed in the front cabinet, and is a long hole in one direction, and the fixing part is a boss formed in the frame. delete The method of claim 4, wherein The long hole is formed in the tension guide protruding from the front cabinet. The method of claim 4, wherein And a washer is inserted into a contact surface of the fastening member and the fixing part. delete

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