JP3206210U - Backlight module and display device - Google Patents

Abstract

A backlight module having an optical film is provided. A backlight module B includes a frame 100, a light guide plate 300, an optical film group 400, at least one first pasting member 500, at least one positioning member 700, and a panel pasting member 800. . The frame 100 includes a bottom plate, a side plate, and a top plate having at least one first top plate opening 111. The light guide plate 300 and the optical film group 400 are provided between the bottom plate and the top plate, and the optical film group 400 has at least one first film opening corresponding to the first top plate opening 111. The positioning member 700 is provided in the first film groove formed by the first film opening and the side plate. The panel sticking member 800 is stuck on the top plate and covers the first top plate opening 111. [Selection] Figure 3A

Description

  The present invention relates to a backlight module. More specifically, the present invention relates to a backlight module having an optical film.

  A backlight module (BLM) is one of important members of a display device. In a display device, a display panel (for example, a liquid crystal display panel) itself cannot emit light, so that a light beam is projected by a light emission source of a backlight module to achieve a display function.

  In general, the backlight module includes an optical film, and the optical film is usually fixed and hung using an ear portion having a hole on a side thereof. However, the above-described ear portion is often not attached due to an error, and increases the width of the side of the backlight module, which is disadvantageous for narrowing the frame of the product.

  In order to solve the above known problems, the present invention provides a backlight module, which includes a frame, a light guide plate, an optical film group, at least one first pasting member, and at least one. One positioning member and a panel sticking member. The frame includes a bottom plate, a side plate, and a top plate having at least one first top plate opening. The light guide plate and the optical film group are provided between the bottom plate and the top plate, and the optical film group has at least one first film opening corresponding to the first top plate opening. The positioning member is provided in the first film groove formed by the first film opening and the side plate. The panel sticking member is stuck on the top plate and covers the first top plate opening.

  In an embodiment of the present invention, the optical film group includes a plurality of optical films.

  In an embodiment of the present invention, the first film opening is formed by providing an opening having the same width over the plurality of optical films.

  In an embodiment of the present invention, the width of the first film opening is equal to or less than the width of the first top plate opening.

  The embodiment of the present invention further includes at least one first sticking member provided between the positioning member and the panel sticking member.

  In an embodiment of the present invention, the length of the first sticking member is equal to or less than the width of the first top plate opening.

  The embodiment of the present invention further includes a reflection sheet provided between the bottom plate and the light guide plate.

  The present invention further provides a backlight module including a frame, a light guide plate, an optical film group, at least one second sticking member, and a panel sticking member. The frame includes a bottom plate, a side plate, and a top plate having at least one second top plate opening. The light guide plate and the optical film group are provided between the bottom plate and the top plate, and the optical film group has at least one second film opening corresponding to the second top plate opening. The 2nd sticking member is provided in the 2nd film ditch | groove formed of the 2nd film opening part and the side plate. The panel sticking member is stuck on the top plate and covers the second top plate opening.

  In an embodiment of the present invention, the optical film group includes a plurality of optical films.

  In an embodiment of the present invention, the second film opening portion is configured such that, in the optical film group, the optical film contacting the light guide plate does not have an opening, and the other optical films have the same width opening. It is formed.

  In an embodiment of the present invention, the width of the second film opening is equal to or less than the width of the second top plate opening.

  In an embodiment of the present invention, the length of the second sticking member is equal to or less than the width of the second top plate opening.

  The embodiment of the present invention further includes a reflection sheet provided between the bottom plate and the light guide plate.

  The embodiment of the present invention further provides a display device including the backlight module and a display panel attached to the panel attaching member.

FIG. 1A is a schematic view of a backlight module according to an embodiment of the present invention. FIG. 1B is a front view of a backlight module according to an embodiment of the present invention. FIG. 2 is an exploded view of the backlight module shown in FIG. 1A. FIG. 3A is an exploded view of the backlight module shown in FIG. 1A viewed from another angle. 3B is a cross-sectional view along the xx direction in FIG. 1B. FIG. 4A is a schematic view of a first film groove according to an embodiment of the present invention. FIG. 4B is a schematic view when the positioning member in the embodiment of the present invention is disposed in the first film groove. FIG. 4C is a schematic view when the first sticking member in the embodiment of the present invention is disposed in the first top plate opening. FIG. 4D is a schematic view when the panel pasting member in the embodiment of the present invention covers the first top plate opening. FIG. 5A is an exploded view of the backlight module shown in FIG. 1A viewed from another angle. FIG. 5B is a cross-sectional view taken along the yy direction in FIG. 1B. FIG. 6A is a schematic view of a second film groove according to an embodiment of the present invention. FIG. 6B is a schematic view when the second sticking member in the embodiment of the present invention is disposed in the second film groove. FIG. 6C is a schematic view when the panel sticking member in the embodiment of the present invention covers the second top plate opening. FIG. 7 is a schematic view of a display device according to an embodiment of the present invention.

  Hereinafter, a backlight module and a display device according to an embodiment of the present invention will be described. However, it will be readily appreciated that the embodiments of the present invention provide some reasonable inventive concepts that can be implemented in a wide variety of specific contexts. The specific embodiments described below are only intended to illustrate the practice of the present invention in a specific manner and are not intended to limit the technical scope of the present invention.

  Unless otherwise defined, all terms used in the following (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. Unless otherwise defined, these terms, such as those defined in commonly used dictionaries, should be construed as having a meaning consistent with the background or context of the related art and invention, It should be understood that it should not be interpreted in an idealized or more formal way than necessary.

  As shown in FIGS. 1A, 1B, and 2, the backlight module B according to the embodiment of the present invention mainly includes at least one of a frame 100, a reflective sheet 200, a light guide plate 300, and an optical film group 400. One first sticking member 500, at least one second sticking member 600, at least one positioning member 700, and a panel sticking member 800 are included. The first sticking member 500 and the positioning member 700 have the same quantity, and the reflective sheet 200, the light guide plate 300, and the optical film group 400 are disposed on the frame 100, and the light guide plate 300 is the same as the reflective sheet 200. It is located between the optical film group 400. Moreover, the optical film group 400 described above can include a plurality of optical films, and the number thereof is determined by the needs of actual standards.

  3A is a schematic view of a portion near the first side s1 in the exploded view of the backlight module B, and FIG. 3B is a cross-sectional view of the backlight module B shown in FIG. 1B along the xx direction. 3A and 3B, the frame 100 includes a top plate 110 and a bottom plate 120, and the reflection sheet 200, the light guide plate 300, and the optical film group 400 are provided between the top plate 110 and the bottom plate 120 and are reflective. The sheet 200 is provided between the light guide plate 300 and the bottom plate 120. The top plate 110 has at least one first top plate opening 111 formed therein.

  In the present embodiment, the opening O1 is formed in each of the four optical films of the optical film group 400. These openings O1 have the same width, and the positions thereof correspond to the first top plate openings 111, and form the first film openings 410 in the optical film group 400. It should be noted that the width of the first film opening 410 should be equal to or less than the width of the first top plate opening 111 so that the assembly of the positioning member 700 and the positioning of the optical film group 400 can be easily performed.

  The positioning member 700 is disposed in the first film opening 410, the first pasting member 500 is disposed in the first top plate opening 111, and the panel pasting member 800 and the positioning member 700 are opposite to the first pasting member 500, respectively. It is pasted on the side. In this embodiment, the positioning member 700 is a release film having no viscosity, and when the positioning member 700 is disposed in the first film opening 410, the positioning member 700 is the inner wall of the first film opening 410. And the optical film group 400 can be positioned. The first sticking member 500 and the panel sticking member 800 are double-sided adhesive tapes having viscosity at least on the upper surface and the lower surface. For this reason, the panel sticking member 800 can be stuck on the top plate 110 of the frame 100, and another member (for example, the display panel D shown in FIG. 7) is stuck on the opposite side. Moreover, in order to fix the optical film group 400, the optical film group 400 can be further affixed to the 1st sticking member 500 in a present Example.

  Hereinafter, the assembly steps of the first sticking member 500, the positioning member 700, and the panel sticking member 800 will be described with reference to FIGS. As shown in FIG. 4A, when the reflective sheet 200, the light guide plate 300, and the optical film group 400 are provided in the frame 100, the first film opening 410 corresponds to the first top plate opening 111 of the top plate 110, The first film groove R1 is formed together with the side plate 130 of the frame 100. Subsequently, as shown in FIG. 4B, the positioning member 700 is inserted into the first film groove R1, and the optical film group 400 is positioned.

  As shown in FIG. 4C, the first pasting member 500 is subsequently installed in the first top plate opening 111, and the positioning member 700 and the optical film group 400 are pasted. Finally, as shown in FIG. 4D, the panel sticking member 800 is stuck to the top plate 110 and the first sticking member 500 to cover the first top plate opening 111.

  In this embodiment, when the first sticking member 500 is disposed in the first top plate opening 111, the top face of the first sticking member 500 is aligned with the top plate 110, which is advantageous for sticking the panel sticking member 800. is there. Moreover, the length of the 1st sticking member 500 should be below the width | variety of the 1st top-plate opening part 111. FIG.

  In some embodiments, when the thickness of the backlight module B is relatively small, the first sticking member 500 can be omitted, that is, the positioning member 700 passes directly through the first top plate opening 111 and the panel. Affixed to the affixing member 800. In some embodiments, the first sticking member 500, the positioning member 700, and the panel sticking member 800 can be integrally molded, further simplifying the assembly step.

  Next, refer to FIGS. 5A and 5B. FIG. 5A is a schematic view of a portion close to the second side s2 in the exploded view of the backlight module B, and FIG. 5B is a cross-sectional view along the yy direction of the backlight module B shown in FIG. 1B. Here, the second side s2 is located on the opposite side of the first side s1.

  At least one second top plate opening 112 is formed in the top plate 110, and an opening O2 is formed in the optical film group 400 in addition to the optical film that contacts the lowermost light guide plate 300. Since these openings O <b> 2 have the same width and the positions correspond to the second top plate openings 112, the second film openings 420 are formed in the optical film group 400. It should be noted that the width of the second film opening 420 should be equal to or smaller than the width of the second top plate opening 112 so that the assembly of the second sticking member 600 and the positioning of the optical film group 400 can be easily performed. is there.

  The second sticking member 600 is provided in the second film opening 420 and penetrates the second top plate opening 112, and the second sticking member 600 is also a double-sided adhesive tape having viscosity on at least the upper surface and the lower surface. The panel sticking member 800 and the above-described lowermost optical film are stuck, and the optical film group 400 is fixed.

  Hereinafter, an assembly step of the second sticking member 600 and the panel sticking member 800 will be described with reference to FIGS. As shown in FIG. 6A, when the reflection sheet 200, the light guide plate 300, and the optical film group 400 are provided in the frame 100, the second film opening 420 corresponds to the second top plate opening 112 of the top plate 110. Then, the second film groove R <b> 2 is formed together with the side plate 130 of the frame 100. Subsequently, as shown in FIG. 6B, the second sticking member 600 is inserted into the second film concave groove R2, and the lowermost optical film of the second sticking member 600 and the optical film group 400 (that is, the light guide plate 300). Adhere the optical film that comes into contact. Finally, as shown in FIG. 6C, the panel sticking member 800 is stuck to the top plate 110 and the second sticking member 600 to cover the second top plate opening 112.

  In this embodiment, when the second sticking member 600 is provided in the second film groove R2, the top surface of the second sticking member 600 is aligned with the top plate 110, which is advantageous for sticking the panel sticking member 800. is there. The length of the second sticking member 600 should be equal to or less than the width of the second top plate opening 112.

  In some embodiments, the second sticking member 600 and the panel sticking member 800 can be integrally molded, further simplifying the assembly step.

  According to the pasting structure of the first side s1 and the second side s2 located in the backlight module B described above, the working time and material cost during assembly can be reduced, the yield rate of products is improved, and the backlight module B The product can be further reduced in weight by reducing the edge width and overall thickness.

  In this embodiment, the pasting structure having the first pasting member 500 and the pasting structure having the second pasting member 600 are respectively provided on the first side s1 and the second side s2 of the backlight module B. In this embodiment, only the sticking structure having the first sticking member 500 may be used, or only the sticking structure having the second sticking member 600 may be used, and the position thereof can be adjusted according to the needs of the user. .

  Referring to FIG. 7, the display device according to the embodiment of the present invention may include the backlight module B and the display panel D in any of the above-described embodiments, and the display panel D is attached to the panel pasting member 800. It is pasted.

  As can be seen from the above, the present invention provides a backlight module and a display device having the backlight module, a first sticking member, a second sticking member, a positioning member, a panel sticking member, a first top plate opening in the frame, The combination of the second top plate opening, the first film opening of the optical film group, and the second film opening simplifies the assembly of the backlight module, improves the non-defective product rate, and narrows the frame of the product. Has achieved the effect of weight reduction.

  The embodiments of the present invention and the advantages thereof have already been described above. However, those skilled in the art can make changes, changes and modifications within the scope and technical scope of the present invention. Should be understood. Further, the scope of protection of the present invention is not limited to the process, equipment, manufacturing, material composition, apparatus, method, and steps in the specific embodiments described in the specification, and those skilled in the art will be able to show the protection scope of the present invention. Use according to the present invention if the contents, processes, equipment, manufacturing, material composition, equipment, methods, and steps can be understood from the contents, and almost the same functions or results can be realized as the embodiments described herein. it can. Therefore, the protection scope of the present invention includes the above processes, equipment, manufacturing, material composition, apparatus, method and steps. Each claim constitutes an individual embodiment, and the protection scope of the present invention includes a combination of each claim and embodiment.

  While the present invention has been illustrated above by a plurality of preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various changes and modifications without departing from the spirit and technical scope of the present invention. Therefore, the protection scope of the present invention is based on the scope limited by the claims of utility model registration. Each claim constitutes an independent embodiment, and any combination of each claim and embodiment belongs to the scope of the present invention.

100 frames,
110 Top plate,
111 first top plate opening,
112 second top plate opening,
120 bottom plate,
130 side plate,
200 reflective sheet,
300 light guide plate,
310 surface,
400 optical film group,
410 first film opening,
420 second film opening,
500 first affixing member,
600 second adhesive member,
700 positioning member,
800 panel affixing member,
B Backlight module,
D display panel,
O1 opening,
O2 opening,
R1 first film groove,
R2 second film groove,
s1 first side,
s2 Second side.

Claims (15)

A frame having a bottom plate, a side plate, and a top plate having at least one first top plate opening;
A light guide plate provided between the bottom plate and the top plate;
An optical film group provided between the light guide plate and the top plate and having at least one first film opening corresponding to the first top plate opening;
At least one positioning member provided in at least one first film groove formed by the at least one first film opening and the side plate;
A panel pasting member that is affixed to the top plate and covers the first top plate opening;
Including backlight module. The optical film group includes a plurality of optical films.
The backlight module according to claim 1. The first film opening is formed by providing an opening having the same width over the plurality of optical films.
The backlight module according to claim 2. The width of the first film opening is equal to or less than the width of the first top plate opening.
The backlight module of any one of Claims 1-3. It further includes at least one first sticking member provided between the positioning member and the panel sticking member,
The backlight module according to claim 1. The length of the first sticking member is equal to or less than the width of the first top plate opening,
The backlight module according to claim 5. It further includes a reflective sheet provided between the bottom plate and the light guide plate,
The backlight module of any one of Claims 1-6. The backlight module according to any one of claims 1 to 7,
A display panel affixed to the panel affixing member;
Display device. A frame having a bottom plate, a side plate, and a top plate having at least one second top plate opening;
A light guide plate provided between the bottom plate and the top plate;
An optical film group provided between the light guide plate and the top plate and having at least one second film opening corresponding to the second top plate opening;
At least one second sticking member provided in at least one second film groove formed by the at least one second film opening and the side plate;
A panel pasting member that is affixed to the top plate and covers the second top plate opening;
Including backlight module. The optical film group includes a plurality of optical films.
The backlight module according to claim 9. In the optical film group, the second film opening is formed such that the optical film in contact with the light guide plate does not have an opening, and the other optical films have the same width.
The backlight module according to claim 10. The width of the second film opening is equal to or less than the width of the second top plate opening.
The backlight module according to claim 9. The length of the second sticking member is not more than the width of the second top plate opening,
The backlight module of any one of Claims 9-12. It further includes a reflective sheet provided between the bottom plate and the light guide plate,
The backlight module of any one of Claims 9-13. The backlight module according to any one of claims 9 to 14,
A display panel affixed to the panel affixing member;
Display device.

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