CN106842671B

CN106842671B - Display device and face frame thereof

Info

Publication number: CN106842671B
Application number: CN201710249196.1A
Authority: CN
Inventors: 王智勇; 周友根
Original assignee: Hefei Huike Jinyang Technology Co Ltd
Current assignee: Hefei Huike Jinyang Technology Co Ltd
Priority date: 2017-04-17
Filing date: 2017-04-17
Publication date: 2023-05-16
Anticipated expiration: 2037-04-17
Also published as: CN106842671A

Abstract

The invention relates to the technical field of liquid crystal display, and provides a display device and a face frame thereof, wherein the display device comprises a plurality of frame strips, and at least two joint pieces which are arranged on corners of the face frame and are used for connecting two adjacent frame strips; the joint comprises a first member and a second member formed on one side of the first member, the first member having a first abutment surface for abutting against one of the frame strip end surfaces and a second abutment surface for abutting against the other frame strip end surface adjacent to the frame strip, the first and second abutment surfaces being mutually perpendicular; the second component comprises a lock body fixed on the first component and two clamping hooks connected with the lock body; the frame strip is provided with a clamping structure at the end part and matched and clamped with the clamping hook. Compared with the prior art, the surface frame provided by the invention has the advantages that the production cost is effectively controlled, the assembled gap is smaller, and the surface after the joint is smoother.

Description

Display device and face frame thereof

Technical Field

The invention relates to the technical field of liquid crystal display, in particular to a display device and a face frame thereof.

Background

At present, the face frames of liquid crystal televisions and display products on the market are divided into a high-grade face frame and a middle-grade face frame, the face frames of the middle-frame products are mainly formed by one-time injection molding through plastic molds, and different colors are coated on the face frames to meet different customer demands; another high-grade product is mainly made of metal mold, and is typically made of aluminum alloy. Because the aluminum alloy cannot be cast and molded in one step by adopting a metal mold, the general method is to adopt an aluminum bar for cold extrusion molding of a standard section profile, the face frame is manufactured into a seamless U-shaped face frame through a bending process, and then the seamless U-shaped face frame and a lower frame strip are fixed on a module backboard together to form the face frame of the liquid crystal television/display, the U-shaped face frame manufactured by the method has lower influence yield due to materials and section shapes, and the U-shaped face frame cannot be bent and molded when the section is wider; the other method is that the frame strips and the butt joint parts are respectively formed into complex lap joint structures through a numerical control processing mode, and are locked onto the module backboard together with the lower frame strips after being lapped together by adopting screws to form the LCD television/display panel frame. The face frame butt joint part is complex to process, the cost is high, and product splicing gaps and uneven joint surfaces are easy to break in many times, so that the product quality is affected.

Disclosure of Invention

The invention aims to provide a display device and a face frame thereof, which are used for solving the technical problems of overhigh manufacturing and processing cost of multi-section spliced frame strips, overlarge assembled gap and uneven joint surfaces in the prior art.

The invention provides a face frame for supporting a display panel, which comprises a plurality of frame strips, wherein the face frame further comprises at least two joint pieces which are arranged on corners of the face frame and are used for connecting two adjacent frame strips; the joint comprises a first member and a second member formed on one side of the first member, wherein the first member is provided with a first abutting surface for abutting on one of the frame strip end surfaces and a second abutting surface for abutting on the other frame strip end surface adjacent to the frame strip, and the first abutting surface and the second abutting surface are mutually perpendicular; the second component comprises a lock body fixed on the first component and two clamping hooks connected with the lock body; the frame strip is provided with a clamping structure at the end part of the frame strip and matched and clamped with the clamping hook.

Further, the frame strip comprises a side wall part and a combining part convexly arranged on the inner side of the side wall part, and the clamping structure is arranged at the end part of the combining part; each clamping hook comprises a head part and a connecting arm connected between the head part and the lock body; the joint part is provided with a supporting surface positioned on one side surface of the joint part, which is far away from the display panel, and the clamping structure comprises a clamping groove which is arranged on the supporting surface and is used for the head part of the clamping hook to slide in along the thickness direction of the display panel, and a limiting part which is connected with the tail end of the joint part and is used for limiting the head part to move out of the clamping groove along the length direction of the frame strip.

Further, the cross section of the head is circular, and the clamping groove is matched with the head.

Further, an included angle between the two connecting arms of each of the engaging pieces is 90 °.

Further, each hook is provided with a first positioning surface which is abutted with the bottom surface of the clamping groove, and the first positioning surface is positioned on the bottom end surface of the hook.

Further, the frame strip further comprises a bearing part which is convexly arranged on the inner side of the combining part and is used for bearing the optical component.

Further, the end face of each bearing part is convexly provided with a butt joint piece, the butt joint piece of one frame strip is in butt joint with the butt joint piece of the other frame strip adjacent to the frame strip, and an insertion space for placing the joint piece along the thickness direction of the display panel is formed between the two frame strips.

Further, a shielding block is convexly arranged on the inner wall of the lock body, the shielding block is provided with a second positioning surface used for being abutted to the top surface of the butt joint piece, and the second positioning surface is positioned on the bottom end surface of the shielding block.

Further, each butt joint piece is provided with a positioning notch, a positioning column is convexly arranged on the bottom end face of the shielding block, and the positioning notches of two adjacent frame strips are butted at the adjacent frame strips to form a positioning hole for the positioning column to be placed in.

The display device provided by the invention comprises a display panel, and the display device further comprises the face frame for supporting the display panel.

In contrast to the prior art, the present invention provides a face frame that interconnects adjacent frame strips using a joint that includes a first member having a first abutment surface for abutting against an end surface of one of the frame strips and a second abutment surface for abutting against an end surface of the other frame strip adjacent to the frame strip; the second component includes two trip, and the frame strip has in its tip and with trip cooperation block's block structure, and this face frame has the assembly simple, easily produces and connection structure is stable grade beneficial effect, and the manufacturing cost of face frame has obtained effectual control, and the clearance after the assembly is less, and the joint back surface is more level and smooth.

Compared with the prior art, the display device provided by the invention adopts the face frame, so that the assembly efficiency is improved, and the time is saved.

Drawings

Fig. 1 is an exploded view of a display device according to an embodiment of the present invention;

FIG. 2 is an exploded view of a face frame provided by an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a joint according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a connection between a frame strip and a joint according to an embodiment of the present invention;

FIG. 5 is an exploded view of a frame strip and a joint according to an embodiment of the present invention;

FIG. 6 is a second exploded view of a frame strip and a joint according to an embodiment of the present invention;

fig. 7 is an exploded view of a frame strip and a joint according to an embodiment of the present invention.

Description of the main reference signs

200: display device 100: face frame

201: display panel 202: backboard

203: optical component

10: frame strip 11: fastening structure

12: side wall portion 13: joint portion

13a: the support surface 131: clamping groove

132: limit part 14: bearing part

141: the abutment piece 141a: positioning notch

141b: positioning hole

20: joint piece

21: the first member 21a: a first contact surface

21b: second abutment surface 211: first part

212: second portion 213: arcuate transition portion

22: second member 221: lock body

2211: the shielding block 2211a: second locating surface

2211b: positioning column

222: hook 2221: head part

2222: the connection arm 222a: first positioning surface

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the implementation of the present invention is described in detail below with reference to the specific drawings.

For convenience of description, the terms "front", "rear", "left", "right", "up", "down" and "down" are used hereinafter in accordance with the directions of front, rear, left, right, up and down of the drawings themselves, but do not limit the structure of the present invention.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1 to 7, a preferred embodiment of the present invention is provided.

The present embodiment provides a face frame 100 for supporting a display panel 201, which includes a plurality of frame strips 10, and at least two joint members 20 disposed at corners of the face frame 100 and used for connecting two adjacent frame strips 10; the joint 20 includes a first member 21 and a second member 22 formed on one side of the first member 21, the first member 21 having a first abutment surface 21a for abutment against an end surface of one of the frame strips 10 and a second abutment surface 21b for abutment against an end surface of the other frame strip 10 adjacent to the frame strip 10, the first abutment surface 21a and the second abutment surface 21b being mutually perpendicular; the second member 22 includes a lock body 221 fixed to the first member 21 and two hooks 222 connected to the lock body 221; the frame strip 10 has an engaging structure 11 at an end thereof and engaged with the hook 222.

The above-described face frame 100 interconnects adjacent frame strips 10 with a joint 20, the joint 20 including a first member 21 and a second member 22, the first member 21 having a first abutment face 21a for abutment against an end surface of one of the frame strips 10 and a second abutment face 21b for abutment against an end surface of the other frame strip 10 adjacent to the frame strip 10; the second member 22 comprises two hooks 222, the frame strip 10 is provided with a clamping structure 11 at the end part and matched and clamped with the hooks 222, so that the production cost of the face frame 100 is effectively controlled, the assembled gap is smaller, and the surface after the joint is smoother; in addition, the frame strip 10 can be integrally connected by the joint piece 20, no difference and gap phenomenon can occur between the joint piece 20 and the frame strip 10, compared with seamless U-shaped bending, no defective products can be produced almost; compared with a complex numerical control processing splicing structure, the process cost is greatly reduced, and the production efficiency is improved. And the panel frame 100 adapter can be made into various textures and colors, enriches the product shape and provides possibility for the differentiation and individuation of the product.

Referring to fig. 1 and 2, the face frame 100 provided in this embodiment is a front frame of a liquid crystal backlight module, the face frame 100 is combined with a back plate 202 and forms a receiving space therebetween, a backlight source (not shown) and an optical component 203 are disposed in the receiving space, the optical component 203 may be an optical film, a light guide plate and a reflective sheet, the components form the liquid crystal backlight module, and the display panel 201 is combined to the face frame 100 to form the liquid crystal display device 200.

Referring to fig. 1 and 2, the face frame 100 includes frame bars 10 and joint members 20, the joint members 20 being disposed at corners of the face frame 100 and for interconnecting two adjacent frame bars 10, in the present embodiment, the display panel 201 has a transverse direction (D1 direction in the drawing, hereinafter collectively referred to as a first direction D1) and a longitudinal direction (D2 direction in the drawing, hereinafter collectively referred to as a second direction D2) perpendicular to each other, the number of the frame bars 10 is, but not limited to, three, respectively an upper frame bar 10 (upper side in the drawing, i.e., a longer frame bar 10) extending in the first direction D1 and a left and right frame bar 10 (left and right side in the drawing, i.e., a shorter longitudinal frame bar 10) extending in the second direction D2, upper ends of the left and right frame bars 10 being connected to left and right ends of the upper frame bar 10, respectively, upper ends of the left and right frame bars 10 being separated with engaging structures 11; the number of the engaging pieces 20 is, but not limited to, two, and upper left and upper right corners of the face frame 100 are provided to connect the upper frame bar 10 and the left and right frame bars 10, respectively. It should be noted that the structures of the left and right ends of the upper frame strip 10 are the same, the upper ends of the left and right frame strips 10 are the same as the end structures of the upper frame strip 10, and the structures of the lower ends and the upper ends of the left and right frame strips 10 are the same or different, when the face frame 100 is composed of four frame strips 10, the end structures of each frame strip 10 are the same.

Referring to fig. 2 to 7, the joint 20, which may be integrally formed of plastic having a certain elasticity, includes a first member 21 and a second member 22 formed inside the first member 21. In this embodiment, the first member 21 is a bent piece, the first member 21 includes a first portion 211 extending along the first direction D1, a second portion 212 extending along the second direction D2, and an arc-shaped transition portion 213 connected therebetween, the first portion 211 has a first abutment surface 21a at an outer end thereof, the second portion 212 has a second abutment surface 21b at an outer end thereof, the first abutment surface 21a and the second abutment surface 21b are perpendicular to each other, the first abutment surface 21a is for abutting on an end surface of one of the frame bars 10, and the second abutment surface 21b abuts on an end surface of the other frame bar 10 adjacent to the frame bar 10. The second member 22 includes a lock body 221 fixed on the first member 21 and two hooks 222 connected to the lock body 221, where the hooks 222 can be engaged with the engaging structure 11 of the frame strip 10, so that the first portion 211 of the first member 21 is aligned with the upper frame strip 10 and the second portion 212 of the first member 21 is aligned with the left and right frame strips 10 by the abutting joint of the first abutting surface 21a and the second abutting surface 21b with the end surfaces of the frame strip 10, so as to avoid the frame strip 10 from tilting relative to the engaging piece 20, to make the two interconnected frame strips 10 mutually perpendicular, and then to be engaged with the engaging structure 11 by the hooks 222 of the second member 22, so as to maintain the relative position between the adjacent frame strips 10.

Referring to fig. 2 to 7, in the present embodiment, the two hooks 222 of the second member 22 are bilaterally symmetrical on the center line of the lock body 221, each hook 222 includes a head 2221 and a connecting arm 2222 connected between the head 2221 and the lock body 221, the connecting arm 2222 protrudes outside the first member 21, and the end face size of the connecting arm 2222 is smaller than the end face size of the head 2221; the frame strip 10 comprises a side wall part 12 and a combination part 13 protruding on the inner side of the side wall part 12, the top surface of the side wall part 12 is higher than the top surface of the combination part 13, the combination part 13 is provided with a fixing hole for fixing the backboard 202, and the backboard 202 is locked on the combination part 13 of the frame strip 10 through a fastener. The clamping structure 11 is arranged at the end of the combining part 13, the combining part 13 is provided with a supporting surface 13a positioned on one side surface of the combining part, which is away from the display panel 201, the clamping structure 11 comprises a clamping groove 131 which is arranged on the supporting surface 13a and is used for enabling the head 2221 of the clamping hook 222 to slide in along the thickness direction of the display panel 201, and a limiting part 132 which is connected at the tail end of the combining part 13 and is used for limiting the head 2221 to move out of the clamping groove 131 along the length direction of the frame strip 10.

Specifically, as can be seen from fig. 2 to 7, the two connection arms 2222 of each joint 20 extend in the first direction D1 and the second direction D2, respectively, the included angle between the two connection arms 2222 is substantially 90 °, the cross-sectional shape of the head 2221 is substantially circular, and the card slot 131 has a shape matching the head 2221.

Referring to fig. 2 to 7, the limiting portion 132 extends obliquely from the coupling portion 13 toward the side wall portion 12, and a set gap is reserved between the limiting portion 132 and the side wall portion 12 for the connection arm 2222 to penetrate, so that the relative positions of the frame strip 10 and the joint 20 are maintained in the length direction of the frame strip 10, and the two can only move relatively in the thickness direction of the display panel 201.

Referring to fig. 2 to 7, as a further optimization, each hook 222 has a first positioning surface 222a abutting against the bottom surface of the slot 131, the first positioning surface 222a is located on the bottom end surface of the hook 222, in this embodiment, in the thickness direction of the display panel 201, the thickness of the head 2221 of the hook 222 is the same as the thickness of the connecting arm 2222 and the depth of the slot 131 is the same, the bottom surfaces of the first positioning surface 222a and the slot 131 are both planar, after the head 2221 of the hook 222 is placed into the corresponding slot 131, in this way, by abutting the first positioning surface 222a against the bottom surface of the slot 131, the joint member 20 and the frame strip 10 can be kept on the same surface, and it is worth mentioning that the top surface of the side wall 12 is flush with the top surface of the first member 21 and the bottom surface of the side wall 12 is flush with the bottom surface of the first member 21, and the top surface of the hook 222 is flush with the supporting surface 13a (i.e. top surface) of the joint portion 13.

Referring to fig. 2 to 7, as a further optimization, the frame strip 10 further includes a carrying portion 14 protruding inside the joint portion 13 for carrying the optical component 203, in this embodiment, the carrying portion 14 of the upper frame strip 10 is provided with a butt piece 141 protruding on both the right and left end faces thereof, and the carrying portion 14 of the right and left frame strips 10 is provided with a butt piece 141 protruding on the upper end face thereof, and the butt piece 141 of one frame strip 10 is butted with the butt piece 141 of the other frame strip 10 adjacent to the one frame strip 10, and an insertion space for the joint 20 to be interposed in the thickness direction of the display panel 201 is formed between the two frame strips 10. In this way, adjacent frame strips 10 can be aligned by the alignment tab 141 before assembling the joint 20, improving the assembly efficiency and saving time.

Referring to fig. 2 to 7, as a further optimization, a shielding block 2211 is convexly provided on the inner wall of the lock body 221, the shielding block 2211 has a second positioning surface 2211a for abutting against the top surface of the abutment piece 141, and the second positioning surface 2211a is located at the bottom end surface of the shielding block 2211. In this embodiment, the second positioning surface 2211a is a plane, and the top surfaces of the opposite tabs 141 are located below the top surface of the bearing portion 14, and the top surfaces of two adjacent pairs of tabs 141 form contact surfaces with the second positioning surface 2211 a. Thus, by the contact surface contacting the second positioning surface 2211a, the light of the internal optical component 203 can be prevented from penetrating out of the slit, and the joint 20 and the frame strip 10 can be further ensured to be on the same surface, so that the flatness of the combined face frame 100 can be improved.

Referring to fig. 2 to 7, as a further optimization, each pair of the connection pieces 141 is provided with a positioning notch 141a, a positioning column 2211b is convexly arranged on the bottom end surface of the shielding block 2211, the positioning notches 141a of two adjacent frame strips 10 are butted at the adjacent frame strips 10 to form a positioning hole 141b for the positioning column 2211b to be placed in, in this embodiment, the positioning notch 141a is semicircular, the cross section of the positioning column 2211b is circular, and the positioning hole 141b formed by the positioning notches 141a of two adjacent frame strips 10 is matched with the positioning column 2211 b. Thus, the light of the internal optical member 203 is further prevented from being transmitted from the 45-degree oblique direction by the positioning posts 2211b, and the light leakage phenomenon is prevented.

The display device 200 provided in this embodiment includes a display panel 201, the above-described face frame 100 for supporting the display panel 201, a back plate 202, and an optical member 203.

The display device 200 adopts the face frame 100, so that the assembly efficiency is improved and the time is saved.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.

Claims

1. A face frame for supporting a display panel, comprising a plurality of frame bars, characterized by further comprising at least two joint members arranged at corners of the face frame for connecting two adjacent frame bars; the joint comprises a first member and a second member formed on one side of the first member, wherein the first member is provided with a first abutting surface for abutting on one of the frame strip end surfaces and a second abutting surface for abutting on the other frame strip end surface adjacent to the frame strip, and the first abutting surface and the second abutting surface are mutually perpendicular; the second component comprises a lock body fixed on the first component and two clamping hooks connected with the lock body; the frame strip is provided with a clamping structure at the end part of the frame strip and matched and clamped with the clamping hook;

the frame strip comprises a side wall part and a combining part convexly arranged on the inner side of the side wall part, and the clamping structure is arranged at the end part of the combining part; each clamping hook comprises a head part and a connecting arm connected between the head part and the lock body; the joint part is provided with a supporting surface positioned on one side surface of the joint part, which is far away from the display panel, and the clamping structure comprises a clamping groove which is arranged on the supporting surface and is used for the head part of the clamping hook to slide in along the thickness direction of the display panel, and a limiting part which is connected with the tail end of the joint part and is used for limiting the head part to move out of the clamping groove along the length direction of the frame strip.

2. The bezel of claim 1, wherein the cross-sectional shape of the head is circular and the clip groove has a shape that matches the head.

3. The bezel of claim 1, wherein an angle between the two connecting arms of each engagement member is 90 °.

4. The bezel of claim 1, wherein each of the hooks has a first positioning surface that abuts against a bottom surface of the slot, the first positioning surface being located on a bottom end surface of the hook.

5. The bezel of claim 1, wherein the frame strip further comprises a carrying portion protruding inside the bonding portion for carrying the optical component.

6. The frame according to claim 5, wherein the end face of each of the carrying portions is provided with a butt-joint piece, the butt-joint piece of one of the frame strips is butt-jointed with the butt-joint piece of the other frame strip adjacent to the frame strip, and an insertion space for the joint piece to be inserted in the thickness direction of the display panel is formed between the two frame strips.

7. The face frame of claim 6, wherein a shielding block is convexly arranged on the inner wall of the lock body, the shielding block is provided with a second positioning surface for abutting against the top surface of the butt joint piece, and the second positioning surface is positioned on the bottom end surface of the shielding block.

8. The frame according to claim 7, wherein each of the butt joint pieces is provided with a positioning notch, a positioning column is convexly arranged on the bottom end face of the shielding block, and the positioning notches of two adjacent frame strips are butted at the adjacent frame strips to form a positioning hole for the positioning column to be placed in.

9. A display device comprising a display panel, further comprising the bezel according to any one of claims 1 to 8 for supporting the display panel.