TWI774074B - Frame structure, backlight module, and display device - Google Patents

Abstract

A frame structure includes a back plate and an outer frame. The back plate includes a body part for carrying an optical unit, at least one extension part extending from the body part, and a bending part connected between the body part and the extension part. The outer frame includes at least one connecting section coupled with the back plate, and a side wall section connecting the connecting section and surrounding the optical unit. The connecting section is superposed and combined with the extension part of the back plate, and the extension part does not extend between the side wall section and the optical unit. The effect of the invention is that the joint position of the back plate and the outer frame is extended to the outside or back side of the back plate and the outer frame, which can effectively reduce the width of the frame and achieve a narrow frame design. The invention also provides a backlight module and a display device including the frame structure.

Description

Frame structure, backlight module, and display device

The present invention relates to an outer frame, in particular to a frame structure for a backlight module.

Display panels and display devices using the display panels have gradually become the mainstream of various display devices. For example, various panel display screens, household flat-screen TVs, personal computers, mobile phones, and digital cameras are all products that use a large number of display panels. Especially in recent years, the market demand for liquid crystal display devices has grown substantially. In order to meet the functional and appearance requirements of liquid crystal display devices, the designs of backlight modules used in liquid crystal display devices are also increasingly diversified.

In order to cope with the trend of narrow bezels in modern mobile devices or various display devices, most of the current narrow bezel structures use methods such as compressing the thickness of the frame member and the assembly space, but the thickness of the frame member also has a limit, and most of the assembly adopts the hook design. , the hook setting requires the structure of the back frame and the outer frame to cooperate with each other, which cannot effectively reduce the width of the frame to meet the design requirements of a narrow frame.

Therefore, the purpose of the present invention is to provide a frame structure that can reduce the width of the frame.

A frame structure of the present invention includes a backboard and an outer frame. The back plate includes a body portion for carrying an optical unit, at least one extension portion extending from the body portion, and a bending portion connected between the body portion and the extension portion. The outer frame includes at least one joint section combined with the back plate, and a side wall section connected to the joint section and surrounding the optical unit. Wherein, the combination section and the extension part of the back plate are superposed and combined with each other, and the extension part is not extended between the side wall section and the optical unit. Another frame structure of the present invention includes a backboard and an outer frame. The backplane includes a body portion for carrying an optical unit, and at least one extension portion extending from the body portion. The outer frame includes at least a joint section combined with the back plate, a side wall section connecting the joint section and surrounding the optical unit, and a bending section between the joint section and the side wall section. Wherein, the combining section and the extension part of the backboard are superimposed and combined with each other and are located on the backside or the outer side of the backboard, and the extension part does not extend between the side wall section and the optical unit.

Another technical means of the present invention is that the main body portion of the back plate has a carrying surface for carrying the optical unit, and a back surface opposite to the carrying surface, and the extension portion of the back plate is extended from the main body portion and abutting against the back of the main body, the combining section of the outer frame is extended from the side wall section and is stacked on the extending section of the back panel.

Another technical means of the present invention is that the extension portion of the back plate is continuously extended from the edge of the main body portion, and forms a step difference with the main body portion, and a distance is formed between the extension portion and the optical unit, and the outer portion is formed. The combined section of the frame is superimposed on the extension of the backplane.

Another technical means of the present invention is that the extension portion of the backboard extends in different directions from the body portion, and the joint section of the outer frame extends from the side wall section and is stacked on the backboard. extension.

Another technical means of the present invention is that the extension portion of the backboard extends from the body portion in the same direction, and the joint section of the outer frame extends from the side wall section and is stacked on the backboard. extension.

Another technical means of the present invention is that the extension portion of the back plate is adhered to the combining section of the outer frame.

Another technical means of the present invention is that the extension portion of the back plate has a first through hole, the joint section of the outer frame has a second through hole, and the frame structure further includes a through the first through hole and the The second perforated locking unit.

Another technical means of the present invention is that the first through hole and the second through hole are formed with internal threads, and the locking unit includes a screwing member that is screwed into the first through hole and the second through hole.

Another technical means of the present invention is that the locking unit includes a stud at least combined with the first through hole of the back plate, and a screw element screwed on the stud.

Another object of the present invention is to provide a backlight module and a display device including the frame structure.

The effect of the present invention is that the joint position of the back plate and the outer frame is extended to the outside or the back side of the back plate and the outer frame, which can effectively reduce the width of the frame and achieve a narrow frame design.

21: Backplane

211: body part

212: Extensions

213: Bearing surface

214: Back

215: First Piercing

216: Bending part

22: Outer frame

221: Combined segment

222: Side Wall Section

223: Bearer segment

224: Second Piercing

23: Optical unit

231: light guide plate

232: Optical film

24: Display panel

25: Adhesive layer

26: Locking unit

261: Stud

262: Screws

263: Head

31: Backplane

311: body part

312: Extensions

313: First Piercing

32: Outer frame

321: Combined segment

322: Side Wall Section

323: Bearer segment

324: Second Perforation

325: Bend segment

33: Optical unit

34: Display panel

35: Adhesive layer

36: Locking unit

361: Stud

362: Screws

363: Head

41: Backplane

411: body part

412: Extensions

413: Bending part

42: Outer frame

421: Combined segment

422: Side Wall Section

423: Bearer segment

43: Optical unit

44: Display panel

45: Adhesive layer

46: Locking unit

D: Spacing

P1: Visible area

P2: border area

Fig. 1 is a perspective view showing a first preferred embodiment of the display device of the present invention; Fig. 2 is a perspective view showing a bottom view of the first preferred embodiment; Fig. 3 is a partial perspective view illustrating the configuration of each element; Fig. 4 is a partial side view to assist in explaining Fig. 3; Fig. 5 is a partial perspective view, which is the second preferred embodiment of the display device of the present invention; Fig. 6 is a partial side view to assist in explaining Fig. 5; Fig. 7 is a A partial perspective view is a third preferred embodiment of the display device of the present invention; FIG. 8 is a partial side view to assist in explaining FIG. 7 ; FIG. 9 is a partial perspective view illustrating another aspect of the third preferred embodiment; And FIG. 10 is a partial side view to assist in explaining FIG. 9 .

The features and technical contents of the relevant patent applications of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Before the detailed description, it should be noted that similar elements are designated by the same reference numerals.

Referring to FIG. 1 and FIG. 2 , it is a first preferred embodiment of the display device of the present invention, comprising a back plate 21 , an outer frame 22 , and an optical unit 23 limited by the back plate 21 and the outer frame 22 , and a display panel 24 disposed on the outer frame 22 and located on the light-emitting side of the optical unit 23 .

Referring to FIGS. 3 and 4 , the back plate 21 includes a body portion 211 for carrying the optical unit 23 , a plurality of extension portions 212 extending from the body portion 211 , and a bending portion 216 connected to the body portion 211 and the extension portion 212 . The outer frame 22 includes a plurality of combining sections 221 combined with the extending portion 212 of the back panel 21 , a side wall section 222 connecting the combining sections 221 and surrounding the optical unit 23 , and a side wall section 222 extending from the side wall section 222 to the side wall section 222 . The carrying section 223 extends in the direction of the optical unit 23 . The display panel 24 is disposed on the bearing section 223 of the outer frame 22 , and an adhesive layer 25 can be used to fix the display panel 24 on the bearing section 223 . In one embodiment, it can be an optical unit suitable for an edge-type backlight module, the optical unit 23 includes a light guide plate 231, a light bar (not shown) on one side of the light guide plate 231, and at least one optical film 232 stacked on the light guide plate 231, as shown in FIG. 3 . In other embodiments, it can also be an optical unit suitable for a direct type backlight module. The optical unit 23 includes a plurality of light-emitting units arrayed on a substrate, and at least one optical film stacked above the light-emitting units.

The body portion 211 of the back plate 21 has a bearing surface 213 for supporting the optical unit 23, and a back surface 214 opposite to the bearing surface 213. The extension portion 212 of the back plate 21 is formed by the body portion. One side of the frame 211 is extended and folded back to abut against the back surface 214 of the main body portion 211 . The combined section 221 of the outer frame 22 is extended from the side wall section 222 and is stacked on the extended portion of the back panel 21 . 212 on. It should be further explained that, the combination method of the back plate 21 and the outer frame 22 can be directly bonded by adhesive, or can also be used in a locking method. As shown in FIG. 3 and FIG. 4 , each extending portion 212 of the back plate 21 has at least one first through hole 215 , and each connecting section 221 of the outer frame 22 has at least one second through hole 224 , and the frame structure further includes A plurality of locking units 26 , each locking unit 26 passes through the first through hole 215 and the second through hole 224 to lock the back plate 21 and the outer frame 22 . In this embodiment, each locking unit 26 includes a stud 261 coupled to the first through hole 215 of the back plate 21 , a threaded member 262 screwed to the stud 261 , and a The head 263 at one end of the screw 262 . The stud 261 is formed with an internal thread, the threaded member 262 is directly screwed to the stud 261, and the head 263 of the threaded member 262 can be pressed on the joint section 221 of the outer frame 22 at the same time, so as to The connecting section 221 of the outer frame 22 can be firmly and firmly attached to the extending portion 212 of the back plate 21 . Besides, the design of the extension portion 212 being folded back can increase the locking space of the screw element 262 and enhance the stability of the assembly structure. At the same time, the extension portion 212 is folded to form a chamfer, which also has the effect of guiding the assembly of the outer frame 22 . In some embodiments, the first through hole 215 and the second through hole 224 may also be formed with internal threads, and the screw element 262 is directly screwed on the first through hole 215 and the second through hole 224, instead of This stud 261 needs to be additionally provided.

As shown in FIG. 4 , generally speaking, a display device can be divided into a visible area P1 capable of displaying a picture, and a frame area P2 from the edge of the visible area P1 to the outermost side of the display device. In this preferred embodiment, the joint position of the back plate 21 and the outer frame 22 is located on the back side of the back plate 21 , so that the thickness of the frame of the display device of the present invention is only contributed by the outer frame 22 . The junction of the board 21 and the outer frame 22 is not an avoidance means provided between the outer frame 22 and the optical unit 23 , so that the width of the frame area P2 can be effectively reduced to achieve the effect of narrow frame.

Referring to FIG. 5 and FIG. 6 , it is a second preferred embodiment of the display device of the present invention, comprising a back plate 31 , an outer frame 32 , and an optical unit 33 limited by the back plate 31 and the outer frame 32 , and a display panel 34 disposed on the outer frame 32 and located on the light-emitting side of the optical unit 33 . The back plate 31 includes a body portion 311 for carrying the optical unit 33 , and a plurality of extension portions 312 extending from the body portion 311 . The outer frame 32 includes a plurality of combining segments 321 combined with the extension portion 312 of the back plate 31 , a side wall segment 322 connecting the combining segments 321 and surrounding the optical unit 33 , a side wall segment 322 extending from the side wall segment 322 to the The bearing section 323 extending in the direction of the optical unit 33 and a bending section 325 is formed between the combining section 321 and the side wall section 322 . Because of the viewing angle, only one of the extension portion 312 and the combined segment 321 is shown. The bent sections 325 of the outer frame 32 extend from the side wall section 322 in different directions and connect to the joint section 321 . The extension direction of the side wall section 322 is different from the extension direction of the joint section 321 . The display panel 34 is disposed on the bearing section 323 of the outer frame 32 , and an adhesive layer 35 can be used to fix the display panel 34 on the bearing section 323 .

In this preferred embodiment, the extension portion 312 of the back plate 31 is continuously extended from the edge of the main body portion 311 , and forms a level difference with the main body portion 311 , so that a gap is formed between the extension portion 312 and the optical unit 33 . With a distance D, the combining section 321 of the outer frame 32 is stacked on the extending portion 312 of the back panel 31 and is located outside the back panel 31 . Each extending portion 312 of the back plate 31 has at least one first through hole 313 , and each connecting section 321 of the outer frame 32 has at least one second through hole 324 , and the frame structure further includes a plurality of locking Units 36 , each locking unit 36 passes through the first through hole 313 and the second through hole 324 to lock the back plate 31 and the outer frame 32 . In this embodiment, each locking unit 36 includes a stud 361 coupled to the first through hole 313 of the back plate 31 , a threaded member 362 screwed to the stud 361 , and a The head 363 at one end of the screw member 362 . The stud 361 is formed with an internal thread, the threaded member 362 is directly screwed to the stud 361, and the head 363 of the threaded member 362 can be pressed on the joint section 321 of the outer frame 32 at the same time, so as to The connecting section 321 of the outer frame 32 can be firmly and firmly attached to the extending portion 312 of the back plate 31 .

The preferred embodiment utilizes the extension portion 312 of the back plate 31 to form a design of level difference, and the joint position of the back plate 31 and the outer frame 32 is located on the back side of the back plate 31, so that the display device of the present invention is The thickness of the frame is only the contribution of the outer frame 32, and the effect of narrow frame can be achieved by not setting the avoidance means between the outer frame 32 and the optical unit 33 at the joint of the back plate 31 and the outer frame 32 . In addition, the above-mentioned step-difference design can generate stress to enhance the structural strength of the back plate 31 , and at the same time, it can increase the locking space of the screw member 362 to enhance the stability of the assembly.

Referring to FIGS. 7 and 8 , it is a third preferred embodiment of the display device of the present invention, comprising a back plate 41 , an outer frame 42 , and an optical unit 43 limited by the back plate 41 and the outer frame 42 , and a display panel 44 disposed on the outer frame 42 and located on the light-emitting side of the optical unit 43 . The back plate 41 includes a body portion 411 for carrying the optical unit 43 , a plurality of extension portions 412 extending from the body portion 411 , and a bending portion 413 connected between the body portion 411 and the extension portion 412 . The outer frame 42 includes a plurality of combining sections 421 combined with the extension 412 of the back panel 41 , a side wall section 422 connecting the combining sections 421 and surrounding the optical unit 43 , and a side wall section 422 extending from the side wall section 422 to the side wall section 422 . The carrying section 423 extends in the direction of the optical unit 43 . Because of the viewing angle, only one of the extension portion 412 and the combined segment 421 is shown. The display panel 44 is disposed on the bearing section 423 of the outer frame 42 , and an adhesive layer 45 can be used to fix the display panel 44 on the bearing section 423 .

In this preferred embodiment, the bent portion 413 of the back plate 41 is extended from the main body portion 411 in different directions and is connected to the extension portion 412 , and the extension direction of the main body portion 411 is the same as the extension of the extension portion 412 . The directions are different. More specifically, it is bent and then extended from one side of the body portion 411 , and the joint section 421 of the outer frame 42 is extended from the side wall section 422 and overlapped with the extension portion 412 of the back plate 41 . It is located on the outside of the back plate 41 , and is combined with a locking unit 46 . In other embodiments, as shown in FIG. 9 and FIG. 10 , the extension portion 412 of the back plate 41 is continuously extended in the same direction from one side of the body portion 411 , and the combined section 421 of the outer frame 42 is It is bent and extended from one side of the side wall section 422 to be stacked on the extension portion 412 of the back plate 41 .

In this preferred embodiment, the joint position of the back plate 41 and the outer frame 42 is located on the back side or the outer side of the back plate 41 , so that the thickness of the frame of the display device of the present invention is only the contribution of the outer frame 42 . Since the joint of the back plate 41 and the outer frame 42 is not an avoidance means provided between the outer frame 42 and the optical unit 43 , the effect of a narrow frame can be achieved. In addition, this preferred embodiment is more suitable for being installed in an embedded device or used as an in-vehicle device, and the extension portion 412 and the combining section 421 can be used as a position to be combined with the embedded device or the in-vehicle device. shade.

To sum up, the display device of the present invention adopts a variety of different ways to extend the joint position of the back plate and the outer frame to the outside or the back side of the back plate and the outer frame, which can effectively reduce the width of the frame, and It can meet the design of the narrow frame, and can indeed achieve the purpose of the present invention.

However, the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the description of the invention, All still fall within the scope of the patent of the present invention.

21: Backplane

211: body part

212: Extensions

213: Bearing surface

214: Back

215: First Piercing

216: Bending part

22: Outer frame

221: Combined segment

222: Side Wall Section

223: Bearer segment

224: Second Piercing

23: Optical unit

231: light guide plate

232: Optical film

24: Display panel

25: Adhesive layer

26: Locking unit

261: Stud

262: Screws

263: Head

Claims (10)

A frame structure, comprising: a back plate, including a body portion for carrying an optical unit, at least one extension portion extending from the body portion, and a bending portion connected between the body portion and the extension portion; and an outer frame, comprising at least a joint section combined with the back plate, and a side wall section connected with the joint section and surrounding the optical unit, wherein the joint section is overlapped with the extension of the back plate combined, and the extension part does not extend between the side wall section and the optical unit, wherein the body part of the back plate has a bearing surface for bearing the optical unit, and a back surface opposite to the bearing surface , the extension part of the back plate is extended from the main body part and abuts against the back of the main body part, the joint section of the outer frame is extended from the side wall section and is stacked on the extension part of the back plate wherein, the body portion of the back plate has a body through hole, the extension portion of the back plate has a first through hole, the joint section of the outer frame has a second through hole, and the frame structure also includes a through hole A locking unit of the body through hole, the first through hole and the second through hole. The frame structure according to claim 1, wherein the extension portion of the back plate is continuously extended from the edge of the body portion, and forms a level difference with the body portion, and a distance is formed between the extension portion and the optical unit, The combined section of the outer frame is stacked on the extension portion of the back plate. A frame structure, comprising: a back plate, including a main body part for carrying an optical unit, at least one extension part extending from the main body part, and a bending part connected to the main body part and the extension part between; and an outer frame, including at least a combined segment combined with the backplane, and a sidewall segment connected to the combined segment and surrounding the optical unit, wherein the combined segment is connected to the extension of the backplane They are stacked and combined with each other and are located on the back side or the outer side of the back plate, and the extension portion is not extended between the side wall section and the optical unit, wherein the bent portion of the back plate is directed from the body portion toward the back plate. The extension portion extends in different directions and is connected to the extension portion. The extension direction of the body portion is different from the extension direction of the extension portion. The combined section of the outer frame extends from the side wall section and overlaps the extension portion of the backboard. A frame structure, comprising: a back plate, including a body portion for carrying an optical unit, and at least one extension portion extending from the body portion; and an outer frame, including at least one joint segment combined with the back plate , a side wall section connecting the joint section and surrounding the optical unit, and a bending section between the joint section and the side wall section, the bending section of the outer frame extends in different directions from the side wall section and connect the joint section, the extension direction of the side wall section is different from the extension direction of the joint section, wherein the joint section and the extension part of the backboard are superimposed and combined with each other and are located on the outer side of the backboard, and the The extension part does not extend between the side wall section and the optical unit, wherein the extension part of the back plate is extended in the same direction from the main body part, and the combined section of the outer frame is formed by the side wall section The extension part is extended and stacked on the back plate. The frame structure according to any one of claims 3 or 4, wherein the extension portion of the back plate is bonded to the combining section of the outer frame. The frame structure according to any one of claims 3 or 4, wherein the extension portion of the back plate has a first through hole, the joint section of the outer frame has a second through hole, and the frame structure further comprises a A locking unit passing through the first through hole and the second through hole. The frame structure as claimed in claim 6, wherein the first through hole and the second through hole are formed with internal threads, and the locking unit includes a screw element that is screwed into the first through hole and the second through hole. The frame structure of claim 6, wherein the locking unit comprises a stud at least coupled to the first through hole of the back plate, and a screw element screwed to the stud. A backlight module, comprising a frame structure as described in any one of claims 1 to 8, and an optical unit disposed on the frame structure. A display device, comprising a backlight module as claimed in claim 9, and a display panel located on a light-emitting side of the backlight module, wherein the outer frame includes a bearing section extending from the side wall section, the display The panel is arranged on the bearing section of the outer frame.

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