TWM527102U - Backlight module and display device - Google Patents

Abstract

A backlight module is provided, including a frame, a light guiding plate, an optical film set, at least one first adhesive member, at least one positioning member, and a panel adhesive member. The frame has a bottom plate, a lateral plate, and a top plate having at least one first top plate opening. The light guiding plate and the optical film set are disposed between the bottom plate and the top plate, and the optical film set has at least one first film opening corresponding to the first top plate opening. The positioning member is disposed in a first film recess formed by the first film opening and the lateral plate. The panel adhesive member is attached on the top plate and covers the first top plate opening.

Description

Backlight module and display device

This creation is about a backlight module. More specifically, the present invention relates to a backlight module having an optical film.

The Backlight Module (BLM) is one of the important components of the display device. Since the display panel (for example, the liquid crystal display panel) in the display device does not emit light by itself, it is necessary to project light through the light source of the backlight module to achieve the function of display.

Generally, an optical film is included in a backlight module, and the optical film is usually fixed and suspended by an ear having a hole at a side thereof. However, the ear portion is often unable to be assembled due to an error, and the width of the side of the backlight module is increased, which is disadvantageous for the narrow edge of the product.

In order to solve the above problems, the present invention provides a backlight module including a frame, a light guide plate, an optical film set, at least one first adhesive member, at least one positioning member, and a panel adhesive member. The frame has 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 disposed 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 disposed in the first diaphragm groove formed by the first diaphragm opening portion and the side panel. The panel sticker is attached to the top The plate covers the first top plate opening.

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

In an embodiment of the present invention, the first diaphragm opening portion is formed by a plurality of optical films each having the same width opening.

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

In an embodiment of the present invention, at least one first adhesive component may be disposed between the positioning component and the panel adhesive component.

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

In an embodiment of the present invention, a reflective sheet is disposed 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 set, at least one second adhesive member, and a panel adhesive member. The frame has 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 disposed 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 second adhesive member is disposed in the second diaphragm groove formed by the second diaphragm opening portion and the side panel. The panel adhesive is attached to the top panel and covers the opening of the second top panel.

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

In an embodiment of the present invention, the second diaphragm opening portion is an optical film in the optical film group that is in contact with the light guide plate, and has no opening, and the remaining optical film The sheets are formed by openings of the same width.

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

In an embodiment of the present invention, a reflective sheet is disposed between the bottom plate and the light guide plate.

An embodiment of the present invention further provides a display device, including the foregoing backlight module and a display panel, wherein the display panel is attached to the panel adhesive.

100‧‧‧Frame

110‧‧‧ top board

111‧‧‧First top plate opening

112‧‧‧Second top plate opening

120‧‧‧floor

130‧‧‧ side panels

200‧‧‧reflector

300‧‧‧Light guide plate

310‧‧‧ surface

400‧‧‧Optical diaphragm group

410‧‧‧First diaphragm opening

420‧‧‧second diaphragm opening

500‧‧‧First Adhesive

600‧‧‧Second adhesive

700‧‧‧ Positioning parts

800‧‧‧Panel adhesive parts

B‧‧‧Backlight module

D‧‧‧ display panel

O1‧‧‧ openings

O2‧‧‧ openings

R1‧‧‧first diaphragm groove

R2‧‧‧second diaphragm groove

S1‧‧‧ first side

S2‧‧‧ second side

FIG. 1A is a schematic view showing a backlight module according to an embodiment of the present invention.

Fig. 1B is a front view showing a backlight module of an embodiment of the present invention.

Fig. 2 is an exploded view showing the backlight module shown in Fig. 1A.

Fig. 3A is an exploded view showing the backlight module shown in Fig. 1A at another angle of view.

Fig. 3B is a cross-sectional view taken along line x-x in Fig. 1B.

Figure 4A is a schematic view showing the first film groove of an embodiment of the present invention.

Figure 4B is a schematic view showing the positioning member of the present embodiment in which the positioning member is received in the first diaphragm groove.

Figure 4C is a schematic view showing the first adhesive member of the first embodiment of the present invention.

4D is a schematic view showing the panel adhesive member covering the opening portion of the first top panel in an embodiment of the present invention.

Fig. 5A is an exploded view showing the backlight module shown in Fig. 1A at another angle of view.

Fig. 5B is a cross-sectional view taken along line y-y in Fig. 1B.

Figure 6A is a schematic view showing the second film groove of an embodiment of the present invention.

Figure 6B is a schematic view showing the second adhesive member of the embodiment of the present invention being received in the groove of the second film.

Fig. 6C is a view showing the panel adhesive member in the embodiment of the present invention covering the opening portion of the second top panel.

Fig. 7 is a view showing a display device of an embodiment of the present invention.

The backlight module and the display device of the present embodiment will be described below. However, it will be readily appreciated that the present creative embodiment provides many suitable creative concepts and can be implemented in a wide variety of specific contexts. The specific embodiments disclosed are merely illustrative of the use of the present invention in a particular way, and are not intended to limit the scope of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning meaning It will be understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the context or context of the present disclosure, and should not be in an idealized or overly formal manner. Interpretation, unless specifically defined herein.

Referring to FIG. 1A, FIG. 1B and FIG. 2, the backlight module B of the present embodiment mainly includes a frame 100, a reflective sheet 200, a light guide plate 300, an optical film set 400, and at least one first adhesive member. 500, at least one second adhesive member 600, at least one positioning member 700, and a panel adhesive member 800, wherein the first adhesive member 500 and the positioning member 700 are the same in number, and the reflective sheet 200, the light guide plate 300 and the optical film group The 400 series is housed in the frame 100, and the light guide plate 300 is located on the reflective sheet 200. Between the optical film set 400 and the optical film set 400. Additionally, the optical film set 400 can include a plurality of optical films, the number of which depends on actual specification requirements.

3A is a schematic view showing the vicinity of the first side s1 in the exploded view of the backlight module B, and FIG. 3B is a cross-sectional view showing the backlight module B shown in FIG. 1B in the x-x direction. As shown in FIGS. 3A and 3B, the frame 100 has a top plate 110 and a bottom plate 120. The reflective sheet 200, the light guide plate 300, and the optical film set 400 are disposed between the top plate 110 and the bottom plate 120, and the reflective sheet 200 is disposed on Between the light guide plate 300 and the bottom plate 120. At least one first top plate opening portion 111 is formed on the top plate 110.

In the present embodiment, the four optical films of the optical film set 400 are formed with openings O1 having the same width and corresponding positions to the first top plate opening 111 to form on the optical die set 400. The first diaphragm opening portion 410. It should be noted that the width of the first diaphragm opening portion 410 should be less than or equal to the width of the aforementioned first top plate opening portion 111 to facilitate assembly of the positioning member 700 and positioning of the optical film group 400.

The positioning member 700 is received in the first film opening 410, and the first adhesive member 500 is received in the first top plate opening portion 111, and the panel adhesive member 800 and the positioning member 700 are respectively adhered to the first adhesive member 500. The opposite side. It should be noted that, in this embodiment, the positioning member 700 is a non-adhesive release film, and when the positioning member 700 is received in the first diaphragm opening 410, the positioning member 700 abuts the first The inner wall of the diaphragm opening portion 410 and the surface 310 of the light guide plate 300 can thus position the aforementioned optical film group 400. The first adhesive member 500 and the panel adhesive member 800 are at least the upper and lower adhesive cell tape, so that the panel adhesive member 800 can be adhered to the top plate 110 of the frame 100 and adhered to other components on the opposite side (for example, 7th The display panel D) shown in the figure. In addition, the first adhesive member 500 in this embodiment can be further adhered to the optical film set 400 to fix the optical film set 400.

Referring to FIGS. 4A-4D, the assembly steps of the first adhesive member 500, the positioning member 700, and the panel adhesive member 800 will be described below. As shown in FIG. 4A, when the reflective sheet 200, the light guide plate 300, and the optical film set 400 are disposed in the frame 100, the first diaphragm opening portion 410 corresponds to the first top plate opening portion 111 on the top plate 110, and The side plate 130 of the frame 100 forms a first diaphragm groove R1. Next, as shown in FIG. 4B, the positioning member 700 may be filled into the aforementioned first diaphragm groove R1 to position the optical film group 400.

As shown in FIG. 4C, the first adhesive member 500 can then be disposed in the first top plate opening portion 111 and adhered to the positioning member 700 and the optical film group 400. Finally, as shown in FIG. 4D, the panel adhesive 800 can be attached to the top panel 110 and the first adhesive member 500 and cover the first top panel opening portion 111.

In the embodiment, when the first adhesive member 500 is received in the first top plate opening portion 111, the top surface of the first adhesive member 500 is aligned with the top plate 110, which facilitates the attachment of the panel adhesive member 800. Further, the length of the first adhesive member 500 should be less than or equal to the width of the first top plate opening portion 111.

In some embodiments, when the thickness of the backlight module B is small, the first adhesive member 500 can be omitted, that is, the positioning member 700 can directly pass through the first top plate opening portion 111 and adhere to the panel adhesive member 800. . In some embodiments, the first adhesive member 500, the positioning member 700, and the panel adhesive member 800 can be integrally formed, so that the assembly step can be more convenient.

Referring to FIGS. 5A and 5B , FIG. 5A is a schematic diagram showing the vicinity of the second side s2 in the exploded view of the backlight module B, and FIG. 5B is a view showing the first FIG. A cross-sectional view of the backlight module B shown in the y-y direction, wherein the second side s2 is opposite to the first side s1.

At least one second top plate opening portion 112 is formed on the top plate 110, and the optical film group 400 is formed with an opening O2 except for the optical film that is in contact with the light guide plate 300 at the bottom, and the openings O2 have the same width and positions corresponding to the foregoing The top plate opening portion 112 is formed to form a second diaphragm opening portion 420 on the optical pattern group 400. It should be noted that the width of the second diaphragm opening portion 420 should be less than or equal to the width of the second top panel opening portion 112 to facilitate assembly of the second adhesive member 600 and positioning of the optical film assembly 400.

The second adhesive member 600 is disposed in the second diaphragm opening portion 420 and passes through the second top plate opening portion 112, and the second adhesive member 600 is also a viscous double-sided adhesive at least on the upper and lower sides, and the two sides are respectively adhered to the panel. The member 800 and the lowermost optical film are adhered to fix the optical film set 400.

Please refer to FIGS. 6A-6C for the assembly steps of the second adhesive member 600 and the panel adhesive member 800. As shown in FIG. 6A, when the reflective sheet 200, the light guide plate 300, and the optical film set 400 are disposed in the frame 100, the second diaphragm opening portion 420 corresponds to the second top plate opening portion 112 on the top plate 110, and The side plate 130 of the frame 100 forms a second diaphragm groove R2. Then, as shown in FIG. 6B, the second adhesive member 600 can be filled into the second diaphragm groove R2 to make the second adhesive member 600 and the optical film at the bottom of the optical die set 400 (ie, The optical film that is in contact with the light guide plate 300 is adhered. Finally, as shown in FIG. 6C, the panel adhesive 800 can be attached to the top panel 110 and the second adhesive member 600 and covers the second top panel opening portion 112.

In this embodiment, when the second adhesive member 600 is disposed in the second diaphragm groove R2, the top surface of the second adhesive member 600 is aligned with the top plate 110, which is advantageous. Attached to the panel sticker 800. In addition, the length of the second adhesive member 600 should be less than or equal to the width of the second top plate opening portion 112.

In some embodiments, the second adhesive member 500 and the panel adhesive member 800 can be integrally formed, so that the assembly step can be more convenient.

By the adhesive structure of the first side s1 and the second side s2 of the backlight module B, the assembly time and material cost can be reduced, the yield of the product can be increased, and the edge width and overall thickness of the backlight module B can be reduced. Make the product lighter and thinner.

In addition, although the adhesive structure having the first adhesive member 500 and the adhesive structure having the second adhesive member 600 are respectively disposed on the first side s1 and the second side s2 of the backlight module B, in some embodiments, In the embodiment, only the adhesive structure having the first adhesive member 500 or only the adhesive structure having the second adhesive member 600 may be used, and the position thereof may be adjusted according to the user's needs.

Referring to FIG. 7 , the display device of the present embodiment may include the backlight module B and a display panel D in any of the foregoing embodiments, wherein the display panel D is attached to the panel adhesive 800 .

In summary, the present invention provides a backlight module and a display device having the foregoing backlight module, wherein the first adhesive member, the second adhesive member, the positioning member, the panel adhesive member, and the first top plate opening portion of the frame, The combination of the second top plate opening portion and the first diaphragm opening portion and the second diaphragm opening portion of the optical film group can simplify the assembly of the backlight module, increase the product yield, and achieve narrowing of the product. Light and thin effect.

Although the embodiments of the present invention and its advantages have been disclosed as above, it should be understood that those skilled in the art can make changes, substitutions and refinements without departing from the spirit and scope of the present invention. In addition, this The scope of protection of the creations is not limited to the processes, machines, manufactures, compositions, devices, methods and steps in the specific embodiments described in the specification, and any one of ordinary skill in the art can understand the present disclosure. Processes, machines, fabrications, compositions, devices, methods, and steps, which are developed in the future, may be used in accordance with the present invention as long as they can perform substantially the same function or achieve substantially the same results in the embodiments described herein. Therefore, the scope of protection of the present invention includes the above processes, machines, manufacturing, material compositions, devices, methods and steps. In addition, each patent application scope constitutes an individual embodiment, and the scope of protection of the present invention also includes the combination of each patent application scope and embodiment.

Although the present invention has been disclosed above in the foregoing several preferred embodiments, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field of the present invention can make some changes and refinements without departing from the spirit and scope of the present creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application. In addition, each of the patent application scopes constitutes a separate embodiment, and the scope of the various patent applications and combinations of the embodiments are all within the scope of the present invention.

100‧‧‧Frame

200‧‧‧reflector

300‧‧‧Light guide plate

400‧‧‧Optical diaphragm group

500‧‧‧First Adhesive

600‧‧‧Second adhesive

700‧‧‧ Positioning parts

800‧‧‧Panel adhesive parts

B‧‧‧Backlight module

Claims (15)

A backlight module includes: a frame having a bottom plate, a side plate and a top plate, wherein the top plate has at least one first top plate opening; a light guide plate disposed between the bottom plate and the top plate; an optical film a set between the light guide plate and the top plate, and having at least one first diaphragm opening portion corresponding to the first top plate opening portion; at least one positioning member disposed at the at least one first diaphragm opening portion The at least one first film groove formed by the side plate; and a panel adhesive member attached to the top plate to cover the first top plate opening. The backlight module of claim 1, wherein the optical film set comprises a plurality of optical films. The backlight module of claim 2, wherein the first diaphragm opening portion is formed by the plurality of optical films each having the same width opening. The backlight module of claim 1, wherein a width of the opening of the first diaphragm is less than or equal to a width of the opening of the first top panel. The backlight module of claim 1, further comprising at least one first adhesive component disposed between the positioning component and the panel adhesive. The backlight module of claim 5, wherein the length of the first adhesive member is less than or equal to the width of the opening portion of the first top plate. The backlight module of claim 1, further comprising a reflective sheet disposed between the bottom plate and the light guide plate. A display device comprising: A backlight module according to any one of claims 1 to 7, and a display panel attached to the panel adhesive. A backlight module includes: a frame having a bottom plate, a side plate and a top plate, wherein the top plate has at least one second top plate opening; a light guide plate disposed between the bottom plate and the top plate; an optical film a set between the light guide plate and the top plate, and having at least one second diaphragm opening portion corresponding to the second top plate opening portion; at least one second adhesive member disposed at the at least one second diaphragm opening The at least one second film groove formed in the portion and the side plate and a panel adhesive member are attached to the top plate to cover the second top plate opening portion. The backlight module of claim 9, wherein the optical film set comprises a plurality of optical films. The backlight module of claim 10, wherein the second diaphragm opening portion is an optical film in the optical film group that is in contact with the light guide plate, and the remaining optical films have the same width opening. Formed. The backlight module of claim 9, wherein the width of the opening of the second diaphragm is less than or equal to the width of the opening of the second top panel. The backlight module of claim 9, wherein the length of the second adhesive member is less than or equal to the width of the opening portion of the second top plate. The backlight module of claim 9, further comprising a reflective sheet disposed between the bottom plate and the light guide plate. A display device, comprising: a backlight module according to any one of claims 9 to 14; and a display panel attached to the panel adhesive.