TWI487984B - Backlight module - Google Patents

Description

Backlight module

The invention relates to a backlight module, in particular to a backlight module for changing a bleed path.

LCD monitors have the advantages of being thin, power-saving, and no-radiation. Therefore, they are widely used in notebook computers, personal digital assistants (PDAs), digital cameras, camcorders, mobile phones, and palms. In various electronic products such as game machines, these electronic products can meet the requirements of lightweight.

Generally, a liquid crystal display (LCD) combined with a touch function touch module must be combined by means of pasting. However, during the coating process of the colloid, the colloid is easy to flow and penetrates into the gap between the frame and the frame, so that the glue penetrates into the interior of the frame, affecting the operation of the display inside the frame, and thus how to improve the problems faced by the conventional, It is urgent for the relevant industry to pursue the direction of improvement.

In view of this, the present invention provides a backlight module comprising: a frame, a plastic frame, and an adhesive member. The frame comprises a top surface of the frame; the plastic frame is coupled to the frame, the plastic frame comprises a body portion and an extension portion, the body portion comprises a first surface and a second surface connected thereto, the second surface faces the frame and forms a gap with the frame, the extension portion One end is connected to the body portion, and the other end extends to the top surface of the frame to close the gap; the adhesive member includes the first section and the second section connected, the first section is attached to the first surface, and the second section is attached Attached to the second surface.

The invention further provides a backlight module, which comprises: a frame, a plastic frame and an adhesive member. The frame comprises a top surface of the frame; the plastic frame is coupled to the frame and forms a gap with the frame; the adhesive member comprises a first section and a second section connected, the first section is attached to the surface of the frame, the second zone The segment is attached to the top surface of the frame to close the gap.

The invention closes the gap between the plastic frame and the frame by extending one end of the extending portion of the plastic frame to the top surface of the frame, preventing the water glue on the adhesive member from infiltrating into the gap and affecting the operation of the internal display, thereby changing the osmosis path. The effect is further, that an opening is further formed between the extending portion and the top surface of the frame to provide water glue guiding out, or a hook structure is formed on the extending portion to fix the opening of the top of the frame, thereby improving the tightness between the plastic frame and the frame. .

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art.

1 and 2 show a first embodiment of a backlight module 1 of the present invention. Fig. 1 is an exploded perspective view, and Fig. 2 is a partial schematic view.

As shown in the first and second embodiments, in the first example of the present invention, the backlight module 1 includes a frame 11, a plastic frame 21, and an adhesive member 3.

Referring to Figures 2 and 3A, the frame 11 has a substantially rectangular sheet structure, and one side of the frame 11 forms a frame top surface 12, where the frame 11 includes connected support portions 13 and a top portion 14, as shown in Figure 3A. The cross-sectional view of the frame 11 is such that the support portion 13 is an upright structure in the Y direction, and the top portion 14 is a horizontal structure in the X direction (eg, FIG. 3A) And the top portion 14 is substantially perpendicularly connected to the support portion 13, and the top portion 14 and the support portion 13 form an inverted L shape. In this embodiment, the frame top surface 12 is located on the surface of the top portion 14, and further, as in the fifth As shown, in some embodiments, the top opening 14 of the frame 11 further includes a first opening 15.

Referring to FIG. 2 and FIG. 3A , the plastic frame 21 has a rectangular frame structure, the plastic frame 21 is coupled to the inner side of the frame 11 , and the plastic frame 21 includes the connected body portion 22 and the extension portion 23 , and the body portion 22 has a first surface 221 (such as the upper surface shown in FIG. 3A) and a second surface 222 (such as the side surface shown in FIG. 3A), and the top end of the body portion 22 includes a protrusion 224 (ie, a portion of the protruding portion 23, the cross-section of the plastic frame 21 is viewed, the body portion 22 is parallel to the support portion 13, and the extending portion 23 is parallel to the top portion 14. When the plastic frame 21 is overlapped with the frame 11, The second surface 222 of the plastic frame 21 faces the frame 11 and forms a gap 223 distance from the frame 11. Further, one end of the extending portion 23 is connected to the second surface 222 of the body portion 22, and the other end of the extending portion 23 extends to The gap 223 is closed on the top surface of the frame 11, that is, the opening formed above the gap 223 is covered by the extension portion 23 to be shielded (as shown in Fig. 3A).

As shown in FIG. 5, in some embodiments, the extension portion 23 of the plastic frame 21 further includes a second opening 24 corresponding to the first opening 15 of the frame 11, when the water gel 5 penetrates When the extension portion 23 is extended, it can flow out from the second opening 24 and the first opening 15 to achieve the effect of guiding the excess water gel 5 to flow out.

The foregoing description is only for the extension portion 23, as shown in FIG. 6, in some embodiments, the extension portion 23 of the plastic frame 21 includes a hook structure 25, and the hook structure 25 Corresponding to the first opening 15 of the engaging frame 11, a better degree of adhesion between the frame 11 and the frame 21 is provided.

Referring to FIGS. 2 and 3A , the adhesive member 3 is a tape having an adhesive component, and the adhesive member 3 includes a first segment 31 and a second segment 32 connected thereto, and the first segment 31 is attached to the body portion 22 . The first surface 221, the second section 32 is attached to the second surface 222 of the body portion 22, where the adhesive member 3 is attached to the protruding portion 224 of the body portion 22 protruding from the extending portion 23 (as shown in FIG. 3A) ).

The foregoing description is only for the adhesive member 3, and in some embodiments, the adhesive member 3 further includes a third section 33, and the third section 33, that is, one of the second sections 32 is partially bent and extended, that is, the first section The second section 32 is attached to the second surface 222, and the third section 33 is attached to the extension 23 (as shown in Figure 3B) or the frame top surface 12 (as shown in Figure 7).

Referring to FIG. 4, when the backlight module 1 is combined with the touch module 9, the adhesive member 3 is coated with a layer of water glue 5. In this embodiment, the water glue 5 is an optical adhesive, and the water glue 5 is located. The adhesive member 3 and the touch module 9 are attached to each other, whereby the water gel 5 provides the effect of fixing both, and has the effects of low light loss and good projection efficiency.

Referring to FIG. 7 , for the second embodiment, the biggest difference between the present embodiment and the first embodiment is that the plastic frame 21 can omit the structural form of the extending portion 23 and the gap 223 formed between the plastic frame 21 and the frame 11 . Closed by the adhesive member 3, wherein the adhesive member 3 includes the first section 31 and the second section 32 connected thereto, the first section 31 is attached to the surface of the plastic frame 21, and the second section 32 is attached. The gap 223 is closed on the top surface of the frame 11. As shown in FIG. 8, when the backlight module 1 is combined with the touch module 9, the adhesive member 3 is A layer of water glue 5 is applied, and the water glue 5 is blocked by the adhesive member 3, does not penetrate into the gap 223 between the frame 21 and the frame 11, and affects the operation of the internal display.

The invention closes the gap between the plastic frame and the frame by extending one end of the extending portion of the plastic frame to the top surface of the frame, preventing the water glue on the adhesive member from infiltrating into the gap and affecting the operation of the internal display, thereby changing the osmosis path. The effect is further, that an opening is further formed between the extending portion and the top surface of the frame to provide water glue guiding out, or a hook structure is formed on the extending portion to fix the opening of the top of the frame, thereby improving the tightness between the plastic frame and the frame. .

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

1‧‧‧Backlight module

11‧‧‧Frame

12‧‧‧Top surface of the frame

13‧‧‧Support

14‧‧‧ top

15‧‧‧First opening

21‧‧‧ plastic frame

22‧‧‧ Body Department

221‧‧‧ first surface

222‧‧‧ second surface

223‧‧‧ gap

224‧‧‧Protruding

23‧‧‧Extension

24‧‧‧Second opening

25‧‧‧ hook structure

3‧‧‧Adhesive parts

31‧‧‧First section

32‧‧‧Second section

33‧‧‧ third section

5‧‧‧Water gel

9‧‧‧Touch Module

Figure 1 is an exploded perspective view of a first embodiment of the present invention.

Figure 2 is a partial schematic view of a first embodiment of the present invention.

Fig. 3A is a partial schematic view (1) of the first embodiment of the present invention.

Figure 3B is a partial schematic view (2) of the first embodiment of the present invention.

FIG. 4 is a partial schematic view of the backlight module in combination with the touch module of the first embodiment.

Fig. 5 is a partial schematic view showing the frame of the invention and the opening pattern of the plastic frame.

Figure 6 is a partial schematic view showing the combination of the frame and the plastic frame of the present invention.

Figure 7 is a partial schematic view of a second embodiment of the present invention.

FIG. 8 is a partial schematic view of the backlight module combined with the touch module of the second embodiment.

1‧‧‧Backlight module

11‧‧‧Frame

12‧‧‧Top surface of the frame

13‧‧‧Support

14‧‧‧ top

21‧‧‧ plastic frame

22‧‧‧ Body Department

23‧‧‧Extension

3‧‧‧Adhesive parts

31‧‧‧First section

32‧‧‧Second section

Claims (10)

A backlight module includes: a frame comprising a frame top surface; a plastic frame coupled to the frame, the plastic frame comprising a body portion and an extension portion, the body portion including a first surface and a first connection a second surface facing the frame and forming a gap with the frame, one end of the extending portion being coupled to the body portion and the other end extending to a top surface of the frame such that a portion of the extending portion is located a part of the top surface of the frame is located on the gap to close the gap; and an adhesive member includes a first section and a second section connected to the first surface, the first section is attached to the first surface, The second section is attached to the second surface. The backlight module of claim 1, wherein one of the second sections is partially attached to the extension. The backlight module of claim 1, wherein the extension is connected to the second surface. The backlight module of claim 1, wherein the frame further comprises a support portion and a top portion, the support portion being adjacent to the body portion, the top portion being substantially perpendicularly connected to the support portion. The backlight module of claim 1, wherein the top surface of the frame is located at the top. A backlight module comprising: a frame comprising a frame top surface; a plastic frame coupled to the frame and forming a gap with the frame; and a sticker comprising a first section connected to the frame a second section, the first A section is attached to the surface of the frame, and the second section is attached to the top surface of the frame to close the gap. The backlight module of claim 6, wherein the plastic frame comprises a first surface and a second surface connected to the frame, the second surface facing the frame and forming the gap with the frame. The backlight module of claim 7, wherein one end of the first segment is attached to the first surface and the other end is attached to the second surface. The backlight module of claim 6, wherein the frame further comprises a support portion and a top portion, the support portion being adjacent to the plastic frame, the top portion being substantially perpendicularly connected to the support portion. The backlight module of claim 6, wherein the top surface of the frame is located at the top.