TWI552122B - The method of manufacturing the front frame of the display - Google Patents

Description

Display front frame manufacturing method

The present invention relates to a method for manufacturing a front frame for mounting in front of a frame of a flat display, which is particularly useful for improving the problem that the corner end of the front frame of the conventional display cannot be completely closed, so that the strength is low and the appearance is unattractive. .

In the structure of a flat panel display such as a liquid crystal or a plasma, in addition to key components such as a display panel, a backlight module, a polarizing plate, and the like, a front frame as a frame member to be mounted in front of the display is included.

Since the current display panel is rectangular, the front frame is also a rectangle matching the shape of the panel, and the conventional front frame of the display is generally formed by integral stamping, or is formed by a combination of four frame members; however, one body The technology of stamping and forming the front frame is not suitable for the production of large-size front frame (more than 75 inches), and there is too much waste generated in the middle of the stamping process. It requires a large tonnage of punches to be manufactured, and the cost is high. Moreover, the integrated stamping method cannot The four corner ends of the front frame are completely closed (the so-called "wrapping angle"), and the height of the wrap angle can only be four times higher than the thickness of the plate. As a result, the strength and aesthetics of the front frame cannot be achieved. Further improvement.

1A and FIG. 1B show a conventional display front frame structure integrally formed by a press forming technique. As shown in the figure, since the front frame includes a horizontal side panel A1 and a vertical side panel A2, in order to avoid integral molding. When the horizontal side plate and the vertical side plate are connected vertically, the wrinkles or cracks at the corner ends are caused, and the gap A3 must be left at the corner end (as shown in FIG. 1B), and the above-mentioned "wrapping angle" is above the gap A3. A4", the height of the wrap angle A4 can only be 4 times of the thickness of the front frame, therefore, from the figure The front frame structure shown in FIG. 1A and FIG. 1B shows that the strength is inevitably low, it is easy to be deformed, and it is not aesthetically pleasing because the four corner ends have slits.

2A to 2C show a conventional display front frame structure which is formed into a rectangular shape by using four frame members. As shown in the figure, it comprises four straight frame members B, and the end of each frame member B is shown. In the shape of L, and in order to make the four frame members can form a rectangular frame, the end portions of each frame member B are cut at an oblique angle of 45°, whereby when one end of the two frame members abut each other, two 45° oblique The corners are combined into a vertical 90°; as shown in FIG. 2B, when combined, a plurality of holes B1 must be drilled in the frame member B, and an L-shaped connecting member B2 is additionally provided, and the connecting member B2 must also be drilled. Corresponding to the perforation B21 of the hole B1; when one end of the two frame members B are adjacent to each other, the connecting member B2 is placed on the two frame members B, so that the perforations B21 respectively correspond to the holes B1, and then the holes are passed through the perforations B21 The connecting member B2 is fixed to the two frame members B with the hole B1, and the two frame members B are fixed, and the four corner ends of the rectangular frame formed by the adjacent four frame members are fixed according to the structure.

It is an object of the present invention to solve the problem that the corner end of the front frame for mounting in front of the frame of the flat display cannot be completely closed, so that the strength is low and the appearance is unattractive.

The main method for manufacturing the front frame of the display provided by the invention is that the metal plate member is formed into a specific shape by a stamping technique, and then formed into a rectangular shape by bending or abutting, and then the adjacent portion is welded and fixed by welding technology, and finally The grinding technique grinds the weld to a rounded corner to form a fully covered display front frame at each corner end.

One of the technical means of the present invention comprises the steps of: (a) forming a metal plate member with a plurality of notches by a stamping technique; and (b) bending the metal plate member such that adjacent sides of the notches abut each other Forming a closed rectangular profile comprising a plurality of horizontal side panels and a plurality of vertical side panels; (c) welding and fixing adjacent edges of the notches by welding techniques; and (d) grinding the weld into circular arcs by grinding techniques angle.

Alternatively, in the foregoing step (a), the metal sheet member is formed into a closed rectangular frame and has four side plates, and the four corner ends of the outer contour of the rectangular frame are respectively formed equal. An angular notch; in the foregoing step (b), a straight line connecting two vertices of two adjacent rectangular notches is a folded edge, and the side plates are respectively bent by 90° to form the horizontal edge plate respectively. And the vertical side plates, and then the adjacent side edges of the vertical side plates are adjacent to each other or even stacked; and, in the foregoing step (c), the adjacent portions of the adjacent vertical side plates are welded and fixed.

Alternatively, in the foregoing step (a), the present invention forms the metal plate member into a long strip shape, and forms an angle between the four vertices on one side between the two ends of the elongated metal plate member. a 90° right-angled notch; in the foregoing step (b), a straight line connecting the vertices of the right-angled notches is a folded edge, and the elongated metal plate member is bent into an L-shaped section to form respectively. The horizontal side plate and the vertical side plate, and the apex of the four right-angled notches are folded to bend the elongated metal plate member into four bent portions with an angle of 90°; and, in the foregoing The step (c) is to weld and fix the two oblique sides of the rectangular notches.

A further technical means of the present invention comprises the following steps: (a) forming four elongated metal plate members by a stamping technique, and the two ends of the elongated metal plate member are respectively formed to be symmetrical with each other and having an angle of 45°. (b) bending the elongate metal plate members into an L-shaped cross section to form a horizontal side plate and a vertical side plate respectively; (c) forming the four elongated metal plate members a rectangular shape, the beveled edges of the 45° angles of the adjacent two metal plate members are adjacent; (d) the welding edge is used to weld and fix the oblique edges of the adjacent two metal plate members at an angle of 45°; (e) grinding technology The weld is ground to an arc angle.

Preferably, the present invention welds the metal sheet by laser welding.

"this invention"

1A‧‧‧Metal sheets

11A‧‧‧Edge board

111A‧‧‧ horizontal edge board

112A‧‧‧Vertical side panels

12A‧‧‧Right angle notch

1B‧‧‧Metal plates

13B‧‧‧Right angle notch

14B‧‧‧ horizontal side panels

15B‧‧‧Vertical side panels

16B‧‧‧Bend

1C‧‧‧Metal plate

12C‧‧‧ oblique side

13C‧‧‧ horizontal side panels

14C‧‧‧Vertical side panels

"Knowledge"

A1‧‧‧ horizontal sideboard

A2‧‧‧ vertical side panel

A3‧‧‧ gap

A4‧‧‧包角

B‧‧‧ frame

B1‧‧‧ hole

B2‧‧‧Connecting parts

B21‧‧‧Perforation

1A is a perspective view showing a front frame structure of a conventional display integrally formed by a press forming technique; FIG. 1B is a partial enlarged view of a region L of FIG. 1A; FIG. 2A is a view showing a conventional method of forming a rectangle by using four frame members. FIG. 2B is a perspective view showing the combination of the four frame members of FIG. 2A and a connecting member; FIG. 2C is a perspective view showing the combination of the four frame members of FIG. 2B and a connecting member; 3 is a view showing a first embodiment of the present invention in which a metal plate member is formed into a closed rectangular frame by a stamping technique and has four side plates, and equal angular shapes are formed at the four corner ends of the outer contour of the rectangular frame, respectively. FIG. 4 is a partial perspective view showing the shape of the corner end after bending and welding the metal plate member of FIG. 3 according to the first embodiment of the present invention; FIG. 5 is a view showing the corner end of FIG. A partial perspective view of another angle; FIG. 6A is a view showing a second embodiment of the present invention in which a metal plate member is formed into a long strip shape by punching, and on one side between the both ends of the elongated metal plate member form FIG. 6B is a schematic view showing a state in which a strip-shaped metal plate having a vertex angle of 90° is bent by 90°; FIG. 7 is a view showing a state in which a strip-shaped metal plate of FIG. 6A is bent by 90°; FIG. 7 is a view showing a second embodiment of the present invention. 6B is a three-dimensional schematic view of the shape of the front frame; FIG. 8 is a partial perspective view showing the surface of the welded joint of FIG. 7 after grinding; FIG. 9 is a view showing that the front frame is not ground after welding according to the present invention. A partial plan cross-sectional view of the front; FIG. 10 is a partial plan cross-sectional view showing the welded front frame of FIG. 9; FIG. 11 is a view showing the four elongated metal plate members formed by the stamping technique of the present invention, and the strip Gold The two ends of the plate member respectively form a three-dimensional schematic view of the oblique sides which are symmetric with each other and have an angle of 45°; FIG. 12 is a partial perspective view showing the four elongated metal plate members of FIG. 11 forming a rectangle and being welded; Figure 13 is a partial plan cross-sectional view showing the welded front frame of Figure 12 after being polished.

The embodiments of the present invention will be described in more detail below with reference to the drawings and the <RTIgt;

"First Embodiment"

As shown in FIGS. 3 to 5, the first embodiment of the present invention includes the following steps: (a) forming a metal plate member 1A into a closed rectangular frame by punching technique and having four side plates 11A, and The four corner ends of the outer contour of the rectangular frame respectively form equal straight-shaped notches 12A; (b) a straight line connected by two vertices of two adjacent rectangular notches 12A (ie, the dotted line shown in FIG. 3) For the hem, the side panels 11A are respectively bent by 90° to form a horizontal side panel 111A and a vertical side panel 112A (shown in FIG. 4), respectively, so that the sides of the adjacent two vertical side panels 112A are formed. Adjacent to each other; (c) welding and fixing the adjacent portions of the side edges of the adjacent two vertical side plates 112A by welding; (d) grinding the welded portion into a circular arc angle by grinding technique (as shown in FIG. 5) .

The metal sheet member 1A of the first embodiment may be any suitable metal material such as aluminum.

The welding technique of the first embodiment preferably uses laser welding.

When the side edges of the adjacent two vertical side plates 112A are adjacent to each other, they may even be deformed and folded as appropriate (as shown in FIG. 4).

According to the manufacturing method of the first embodiment described above, the corner ends of the front frame of the rectangular display can be formed into completely closed sides, thereby making the overall strength of the front frame higher, less deformable, and more beautiful.

Second Embodiment

As shown in FIGS. 6 to 8, the second embodiment of the present invention comprises the following steps: (a) forming a metal sheet member 1B into a strip shape by a stamping technique, and in the strip-shaped metal sheet member 1B. One side between the two ends forms four right-angled notches 13B having an apex angle of 90°; (b) a straight line (dashed line as shown in FIG. 6) connected by the apexes of the right-angled notches 13B is a hem, The elongated metal plate member 1B is bent into an L-shaped section to form a horizontal side plate 14B and a vertical side plate 15B, respectively; (c) the apex of the four right-angled notches 13B is folded The elongated metal plate member 1B is bent by four bent portions 16B having an angle of 90°, thereby making the two oblique sides of the orthogonal notches 13B abut (as shown in FIG. 7); (d) by welding technology The two oblique sides of the right-angled notches 13B are welded and fixed at the abutment; (e) the welded portion is ground into a plane (as shown in FIG. 8).

In the foregoing second embodiment, the two oblique sides of the rectangular notches 13B of the elongated metal plate 1B are adjacent to each other and are welded, and the straight sides are butted on the same plane, thereby creating a seam 17B at the abutment. (As shown in FIG. 9), therefore, the present invention grinds the peripheral plane of the seam 17B to form a concave curved surface 18B which is recessed downward so that the original seam is flush with the concave curved surface 18B. That is, the seam can disappear completely (as shown in Figure 10), making the appearance more beautiful.

The welding technique of the second embodiment preferably uses laser welding.

According to the manufacturing method of the second embodiment described above, the corner ends of the front frame of the rectangular display can be formed into completely closed sides, thereby making the overall strength of the front frame higher, less deformable, and more beautiful.

Third Embodiment

As shown in FIGS. 11 to 13, the third embodiment of the present invention comprises the following steps: (a) forming four elongated metal plate members 1C by a stamping technique, and two of the elongated metal plate members 1C. The ends are respectively formed with oblique sides 11C which are symmetrical with each other and have an angle of 45°; (b) the elongated metal plate members 1C are bent into an L-shaped section to form a horizontal side plate 12C and a vertical side plate 13C, respectively. (c) forming the four elongated metal plate members 1C into a rectangular shape so that the oblique edges 11C of the 45° angles of the adjacent two metal plate members are adjacent; (d) the adjacent two metal plate members are welded by the welding technique The oblique edge 11C of the 45° angle of 1C is welded and fixed at the vicinity (as shown in Fig. 12); (e) The welded portion is ground into a circular arc angle by grinding technique (as shown in Fig. 13).

The welding technique of the third embodiment preferably uses laser welding.

According to the manufacturing method of the foregoing third embodiment, the corner ends of the front frame of the rectangular display can be formed into completely closed sides, thereby making the overall strength of the front frame higher, less deformable, and more beautiful.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the present invention in any way, so that any modifications or alterations to the present invention made in the same spirit of creation are made. All should still be included in the scope of the intention of the present invention.

111A‧‧‧ horizontal edge board

112A‧‧‧Vertical side panels

Claims (6)

A method for manufacturing a front frame of a display, comprising the steps of: (a) forming a metal plate member by a stamping technique with a plurality of notches; and (b) bending the metal plate member such that adjacent sides of the notches are adjacent to each other Forming a closed rectangular profile including a plurality of horizontal side plates and a plurality of vertical side plates; (c) welding and fixing adjacent edges of the notches by welding techniques, and forming welds of adjacent sides of the notches respectively And (d) grinding the peripheral planes of the seams of the welds into a circular arc angle by a grinding technique, and further grinding the surfaces of the arcuate corners to be flush with the surface of the joints of the welds, The surfaces of the arcuate corners are integrated with the surface of the seams of the welds. The manufacturing method of the front bezel of the display of claim 1, wherein the step (a) forms the metal plate member into a closed rectangular frame and has four side plates, and the rectangular frame is The four corner ends of the outer contour respectively form equal right-angled notches; and the step (b) is a folding line connected by two vertices of two adjacent rectangular notches, the equal-sided board Forming the horizontal side panel and the vertical side panel respectively by bending 90°, respectively, so that the side edges of the adjacent vertical side panels are adjacent to each other; and the step (c) is to adjacent the vertical side panel The joint is welded and fixed. The manufacturing method of the front frame of the display according to the first aspect of the invention, wherein the step (a) is to form the metal plate member into a long strip shape at both ends of the elongated metal plate member. One side between the four sides forms a right angle notch with an angle of 90°; the step (b) is a folding line connected by the apex of the right angle notch, and the elongated metal plate member Bending into an L-shaped section to form the horizontal side panel and the vertical side panel, respectively, and in the four right angles The apex of the notch is a hem to bend the elongated metal plate member into four bent portions having an angle of 90°; and the step (c) is to weld the two oblique sides adjacent to the right-angled notch fixed. The method of manufacturing a front bezel of a display according to claim 1, wherein the welding technique is laser welding. A manufacturing method of a front frame of a display, comprising the following steps: (a) forming four elongated metal plate members by a stamping technique, and the two ends of the elongated metal plate member are respectively formed symmetrically with an angle of 45°. (b) bending the elongate metal plate members into an L-shaped cross section to form a horizontal side plate and a vertical side plate respectively; (c) surrounding the four elongated metal plate members Forming a rectangle such that the oblique edges of the 45° angles of the adjacent two metal plate members are adjacent; (d) welding and fixing the oblique edge abutting portions of the adjacent two metal plate members at an angle of 45°, the oblique edges abutting Forming a seam at each of the welds; and (e) grinding the peripheral plane of the joint at each weld into an arcuate angle by grinding techniques, and further grinding the surfaces of the arcuate corners to the welds The surfaces of the seams are flush, and the surfaces of the arcuate corners are integrated with the surface of the seams of the welds. The method of manufacturing a front bezel of a display according to claim 5, wherein the welding technique is laser welding.