TWI407202B - Lcd module and side-lit backlight module - Google Patents

Abstract

The present invention discloses a LCD module and a side-lit backlight module thereof. The side-lit backlight module comprises a light source, a side-lit optical module, a frame and a backboard. The frame associates with the backboard. The frame comprises a plurality of slabs disposed along the peripherals of the side-lit optical module and a plurality of joints. The light source is disposed on at least one of the slabs. The slabs and the joints connect with each other to form a first accommodating space to accommodate the side-lit optical module.

Description

Liquid crystal display and edge-lit liquid crystal display backlight module

The invention relates to a liquid crystal display backlight module and a liquid crystal display, in particular to an edge-lit liquid crystal display backlight module and a liquid crystal display.

The backlight module is a key module of the liquid crystal display, providing sufficient and uniform light to enable the liquid crystal display to display images properly. The backlight module mainly includes an optical film such as a light source and a reflective film, and is roughly classified into a "direct type backlight module" and a "sidelight type backlight module" according to the arrangement mode of the light source.

The conventional direct type backlight module is mostly used for a large-sized LCD TV or a liquid crystal display, since the light source is disposed on the back of the liquid crystal display. The light is directly incident on the display panel, or the light is reflected toward the front of the display panel via the reflector. The advantage is that when space requirements are not considered, multiple light sources can be directly added on the back side according to the panel size, thereby increasing the uniformity of display light; however, the disadvantage is that the display of the direct-lit backlight module is used, in addition to the necessary reflection film and the like. In addition to the thickness of the diaphragm, the thickness of the light source itself is added, which does not meet the requirements for thinning and light weight of the liquid crystal display.

The traditional edge-lit backlight module is mostly used in a notebook computer or a portable personal digital assistant (PDA). The advantage is that the light source system is disposed on the side, so that the thickness of the display module can be effectively reduced; The disadvantage is that the display using the edge-lit backlight module must have a light-guiding component corresponding to the size of the panel in the backlight module, and the light incident on the side is refracted or reflected to the front of the display panel. For the production of large LCD monitors. In the conventional side-lit backlight module, the heat source is disposed on the heat sink, and then installed in the backlight module, and the waste heat generated by the light source is guided to the heat sink. However, in this arrangement, the heat dissipation efficiency depends on the heat transfer rate between the light source and the heat sink. It is necessary to consider whether the heat sink can effectively guide the waste heat to the outside world in terms of structure or material. The accumulation of heat causes damage to the backlight module or display electronics.

In addition, in today's trend toward large-scale LCD displays, backlight modules or backplanes in liquid crystal displays require a higher weight than conventional small liquid crystal displays. In order to solve the problem of structural strength, the conventional method is to directly increase the thickness of the back plate, or add a plurality of reinforcing structures on the back plate to strengthen the structural strength of the back plate. However, in the conventional backlight module manufacturing process, the backing plate and the reinforcing structure thereon are usually formed by punching; and for the stamping process of the large-sized metal plate, compared with the stamping of the small-sized metal plate, It has higher difficulty and higher cost.

Therefore, how to balance the requirements of large-scale and thin-filming is a problem that must be overcome in the current production of liquid crystal displays and backlight modules.

Therefore, in order to solve the above problems, the present invention provides an edge-lit liquid crystal display backlight module, which comprises a light source, an edge-light optical film set, a frame and a back plate. The frame is combined with the backing plate; and the frame includes a plurality of side strips disposed around the side optical optical film set, and a plurality of bonding members. The light source is disposed on at least one of the side strips. The side strips are integrally connected with the coupling member to form a first accommodating space for accommodating the side optical optical film assembly therein.

Therefore, the main object of the present invention is to provide a backlight module for an edge-lit liquid crystal display, which has a frame composed of a plurality of bonding members and a plurality of side strips, and provides overall strength by the bonding members and the side strips, and reduces the burden on the backboard. Load-bearing reduces the thickness required for the backing plate and saves manufacturing costs.

Another object of the present invention is to provide a backlight module for an edge-lit liquid crystal display. Since the frame is composed of a plurality of bonding members and a plurality of side strips, the required side strips can be adjusted according to the sizes of the various optical modules. The length, avoiding the use of die-casting requires the cost of repetitive mold opening in accordance with the size.

Another object of the present invention is to provide a backlight module for an edge-lit liquid crystal display. Since the light source is disposed on the side strip, when the side strip is a good heat conductive material, the light source can be directly contacted with the side strip. The waste heat generated during illuminating is directly derived from the side strips to improve heat dissipation efficiency.

In addition, the present invention also provides a liquid crystal display including an outer frame, a display panel, an edge-lit liquid crystal display backlight module, and a back plate. The edge-lit liquid crystal display backlight module comprises a light source, an edge-lit optical film set, a frame and a back plate. The frame is combined with the backing plate; and the frame includes a plurality of side strips disposed around the side optical optical film set, and a plurality of bonding members. The light source is disposed on at least one of the side strips. The side strips are integrally connected with the coupling member to form a first accommodating space for accommodating the side optical optical film assembly therein.

Therefore, another object of the present invention is to provide a liquid crystal display having a frame composed of a plurality of bonding members and a plurality of side strips, and providing overall strength by the bonding members and the side strips, reducing the load on the backboard and reducing the back panel. The required thickness saves manufacturing costs.

Another object of the present invention is to provide a liquid crystal display. Since the frame is composed of a plurality of bonding members and a plurality of side strips, the length of the desired side strips can be adjusted according to the size of the various optical modules to avoid the use of the mold. Casting requires the cost of repetitive mold opening in accordance with the size.

Another object of the present invention is to provide a liquid crystal display, wherein the light source is disposed on the side strip, and when the side strip is a good heat conductive material containing aluminum, the light source can be illuminated when it is in direct contact with the side strip. The waste heat generated is directly exported by the side strips to improve heat dissipation efficiency.

Since the present invention discloses a liquid crystal display and a backlight module therefor, the backlight module and the illuminating device related process used therein have been known to those of ordinary skill in the related art, and therefore, the description below will not be made. Full description. At the same time, the drawings in the following texts are indicative of the features related to the features of the present invention, and are not required to be completely drawn according to the actual situation.

Please refer to FIG. 1A and FIG. 1B , respectively, which are schematic diagrams showing the assembly and explosion of the backlight module of the edge-lit liquid crystal display according to the first preferred embodiment of the present invention. The edge-lit liquid crystal display backlight module 1 includes a light source 11, an edge-light optical film set 12, a frame 13 and a back plate 14. For example, the edge optical optical film set 12 may be composed of a light guide plate 121 and an optical film 122. The frame 13 is coupled to the backing plate 14. The material of the back plate 14 can be metal (such as aluminum) or plastic material.

In this embodiment, the frame 13 is mainly assembled by a plurality of side strips 131 and a plurality of joint members 132. The side strips 131 are disposed along the four sides of the side optical optical film group 12, and the light source 11 is disposed on at least one side strip 131. In the preferred embodiment, the light source 11 is composed of a light emitting diode. LED Light Bar or LED Array.

In a preferred embodiment, each side strip 131 is formed by aluminum extrusion molding, so that the length of the desired side strip can be adjusted according to the size of the liquid crystal display panel, and the use of the mold forming needs to be repeated according to the size. The cost of the mold is wasted. In addition, in this implementation state, since the light source 11 is disposed on the side strip 131, when the side strip 131 is a good metal heat conductive material, since the light source 11 is in direct contact with the side strip 131, the light source 131 can be illuminated. The generated waste heat is directly led out by the side strip 131 to improve heat dissipation efficiency. In addition, the side strip 131 is further provided with a first retaining wall 1312 on the outer side, and the first accommodating space 15 is surrounded by the four first partition walls 1312 of the four peripheral strips 131. In addition, a plurality of second barrier walls 141 may be disposed around the back plate 14, and each of the second retaining walls 141 is respectively abutted against the first retaining wall 1312, thereby facilitating the frame 13 during assembly. Positioned on the backboard 14.

Moreover, the second barrier wall 141 may not be disposed around the back plate 14, and the frame 13 is directly locked with the back plate 14 by the lower portion 1322 of the coupling member 132 to be coupled to each other.

Please refer to FIG. 1C and FIG. 1D together for a schematic diagram and an assembly diagram of the explosion of the joint member and the side strip of the first preferred embodiment of the present invention. The connecting members 132 are disposed along the four corners of the edge optical optical film group 12 (Fig. 1A). Each of the connecting members 132 has an upper portion 1321 and a lower portion 1322. The upper portion 1321 has a first bent portion 1323 and a first bent portion. The first connecting portion 1324 of the folded portion 1323 extends outward. The lower portion 1322 has a second bent portion 1325 and a second connecting portion 1326 that extends outward from the second bent portion 1325. The first connecting portion 1324 and the second connecting portion 1326 are formed together with a second receiving space 133 for receiving one end 1311 of the side strip 131 therein. Thereby, all the side strips 131 are integrally connected with all the joint members 132 to form the first accommodating space 15 , and the side optical optical film set 12 is received in the first accommodating space 15 .

In the preferred embodiment, the upper portion 1321 and the lower portion 1322 of the coupling member 132 are separate components. After the assembly is completed, the upper portion 1321 and the lower portion 1322 are interlocked to form a coupling member 132.

In addition, the second connecting portion 1326 of the lower portion 1322 of the coupling member 132 further includes a fixing bolt 1327, and the side strip 131 further includes a fixing hole 1313, and the fixing hole 1313 is disposed corresponding to the fixing bolt 1327. The fixing hole 1313 is sleeved on the fixing bolt 1327 so that the side strip 131 and the lower portion 1322 of the coupling member 132 can be fixedly connected. In addition, in order to achieve a stable arrangement of the side strip 131 and the lower portion 1322 of the joint member 132, at each of the fixing holes 1313 and the corresponding fixing bolt 1327, a bolt 134 may be further disposed, and the side strip 131 and the lower portion 1322 of the joint member 132 are disposed. Lock the connection.

In addition, in order to be able to be stably fixed on the frame 13 during assembly, on the lower portion 1322 of the coupling member 132, a positioning member 1328 may be disposed so that the side optical optical film group 12 is assembled during assembly. The four corners can rely on the positioning member 1328 to achieve a stable fixed position. The lower portion 1322 of the connecting member 132 can be provided with a cable management slot 1329, so that the wires or signal wires (not shown) of the edge optical optical film group 12 are uniformly embedded therein for easy finishing.

In addition, the function of positioning the edge optical optical die set 12 (Fig. 1A) in the frame 13 (Fig. 1A) is provided by the addition of the direct integrally formed positioning member 1328 on the lower portion 1322 of the coupling member 132. Alternatively, as shown in FIG. 1E, a positioning block 135 separate from the lower portion 1322 of the coupling member 132 may be additionally provided, and the positioning member 1328 and the cable management slot 1329 are disposed thereon. In addition, the positioning block 135 has a locking hole 1351 for locking and fixing the upper portion 1321 and the lower portion 1322 of the coupling member 132 via an additional locking member 1352. Moreover, when the backlight module 1 of the edge-lit liquid crystal display provided by the preferred embodiment is used to assemble a liquid crystal display (not shown), the positioning block 135 can also be used with the locking hole 1351 and the bonding member 132 and the liquid crystal. The outer cover of the display (not shown) is locked together for assembly. The manufacturing method of the positioning block 135 is preferably made by injection molding.

In addition, referring to FIG. 1B, the backlight module 1 of the edge-lit liquid crystal display provided in the preferred embodiment further includes a plurality of strips 16 respectively disposed corresponding to the strips 131. After the assembly is completed, the edge-lit optical film group 12 can be pressed into the first accommodating space 15.

Please refer to FIG. 1F, which is a cross-sectional view along line AA of FIG. 1A of the first preferred embodiment of the present invention. Since the light source 11 is disposed on the side strip 131, when the strip 16 presses the edge optical optical film set 12 into the first accommodating space 15, the strip 16 can serve as a light blocking member to overflow the light source 11. Light shielding to avoid leakage or lack of concentration.

Please refer to FIG. 1G, which is a schematic view showing another embodiment of the coupling member according to the first preferred embodiment of the present invention. According to the first preferred embodiment of the present invention, in addition to the component types of the upper portion 1321 and the lower portion 1322 which are separately disposed as described above, the bonding member 132 may be directly integrated by the upper portion 1321 and the lower portion 1322. . The first connecting portion 1324 and the second connecting portion 1326 are also in contact with each other to form a second accommodating space 133. One end 1311 of the rib 131 is also inserted into the second accommodating space 133 and connected to the coupling member 132.

Further, as shown in FIG. 1H, the joint member 132 may be coupled to the side strips 131 in a manner of being joined to each other. In other words, according to the concept of the present invention, the coupling member 132 does not need to have a second accommodating space 133 to accommodate one end 1311 of the side strip 131, as shown in FIG. 1D or FIG. 1G, and can also be erected (like the 1H). As shown in the figure) or other bonding methods, the side strips 131 are combined with each other.

According to the edge-lit liquid crystal display backlight module provided by the first preferred embodiment, since the frame 13 is formed by combining a plurality of side strips 131 and a plurality of joint members 132, the display panel can be set according to various sizes. Adjust the length of the side strip 131, no need to open the mold to re-create. In addition, the structural strength of the edge-lit liquid crystal display backlight module 1 is conventionally completely provided by the backing plate 14, and is converted into a majority of the bonding member 132 and the side strips 131 on the frame 13, so that the backing plate 14 can be lowered. The thickness of the back plate can also be avoided by stamping, which effectively reduces the production cost.

Moreover, according to the backlight module of the edge-lit liquid crystal display provided by the preferred embodiment, in the preferred sequence of assembly, as shown in the exploded view of FIG. 1B and FIG. 1C, the lower portion 1322 of the bonding member 132 is first The side strips 131 are locked to form a square shape of the side strips 131 - the lower portion 1322 of the joint members. Then, the side strip 131 and the lower portion 1322 of the joint are positioned on the back plate 14 and then locked. After the light source 11 (here, the light-emitting diode light bar is taken as an example) is disposed on the side strip 131, the edge-light optical film set 12 (including the light guide plate 121 and the optical film 122) is sequentially placed on the side strip. The square portion 1322 of the 131-bonding member 132 is formed in a square shape, and the four corners of the side optical optical film group 12 are positioned against the positioning member 1328 on the lower portion 1322 of each of the coupling members 132. Then, the upper portion 1321 of the coupling member 132 is locked with the lower portion 1322 of the coupling member 132 by bolts, and the two members form a complete coupling member 132. Then, the rubber strips 16 are disposed corresponding to the side strips 131, and the side optical optical film is disposed. The chip group 12 is press-fitted and fixed in the first accommodating space 15 to complete the assembly of the edge-lit liquid crystal display backlight module 1. The assembled side-lit liquid crystal display backlight module 1 is as shown in FIG. 1A.

In addition, in addition to the first preferred embodiment described above, the bonding member is disposed outside the four corners of the side optical optical film group, and the bonding member may also have a ㄈ-type structure disposed on the edge optical optical film. The opposite sides of the group. The detailed setting state is as described in the second preferred embodiment below.

Please refer to FIG. 2A and FIG. 2B , respectively for a schematic diagram of assembly and explosion of the backlight module of the edge-lit liquid crystal display according to the second preferred embodiment of the present invention. The edge-lit liquid crystal display backlight module 2 includes a light source 21, an edge-light optical film set 22, a frame 23 and a back plate 24. For example, the edge optical optical film set 22 can be composed of a light guide plate 221, an optical film 222, and a reflective film 223. The frame 23 is coupled to the backing plate 24.

In this embodiment, the frame 23 is mainly assembled by four side strips 231 and two joint members 232. The side strip 231 is disposed along the periphery of the edge optical optical film group 22, and the light source 21 is disposed on at least one side strip 231. In the preferred embodiment, the light source 21 is made of light composed of the light emitting diode. LED Light Bar or LED Array.

In addition, the side strip 231 is further provided with a first retaining wall 2312 on the outer side, and the first accommodating space 25 is surrounded by the four first partition walls 2312 of the four peripheral strips 231. In addition, a plurality of second barrier walls 241 may be disposed around the back plate 24, and each of the second retaining walls 241 is respectively abutted against the first retaining wall 2312, whereby the frame 23 is assembled during the assembly process. It can be positioned on the backboard 24.

Please refer to FIG. 2C and FIG. 2D , which are respectively schematic diagrams and assembly diagrams of the explosion of the joint member and the side strip according to the second preferred embodiment of the present invention. The bonding member 232 (FIG. 2A) is disposed along opposite side edges of the edge-lit liquid crystal display backlight module 22 (FIG. 2A), and each bonding member 232 (FIG. 2A) has an upper portion 2321 and two structures having a meandering structure. The upper portion 2321 has a first bent portion 2323 and a first connecting portion 2324 extending outward from the first bent portion 2323. The lower portion 2322 has a second bent portion 2325 and a second connecting portion 2326 extending outward from the second bent portion 2325. The first connecting portion 2324 and the second connecting portion 2326 are formed together with a second accommodating space 233 for receiving one end 2311 of the side strip 231 therein. Thereby, all the side strips 231 are integrally connected with the two joint members 232 (FIG. 2A) to form the first accommodating space 25, and the side optical optical film group 22 is accommodated in the first accommodating space 25. .

In addition, the second connecting portion 2326 of the lower portion 2322 of the joint member 232 (FIG. 2A) further includes a fixing bolt 2327, and the side strip 231 further includes a fixing hole 2313, and the fixing hole 2313 is fastened with the fixing bolt 2327. Correspondingly, by fixing the fixing hole 2313 to the fixing bolt 2327, the side strip 231 and the lower portion 2322 of the joint member 232 (Fig. 2A) can be fixedly connected. In addition, in order to achieve the stable arrangement of the lower portion 232 of the side strip 231 and the joint member 232 (FIG. 2A), at each of the fixing holes 2313 and the corresponding fixing bolt 2327, a bolt 234 may be further disposed, and the side strip 231 is The lower portion 2322 of the coupling member 232 (Fig. 2A) is locked and connected.

In addition, in order to be able to stably fix the edge optical optical film group 22 on the frame 23 during assembly, a positioning member 2328 may be disposed on the lower portion 2322 of the coupling member 232 so that the side optical optical film group 22 is assembled during assembly. The four corners can rely on the positioning member 2328 to achieve a stable fixed position. The lower portion 2322 of the coupling member 232 can be provided with a cable management slot 2329, so that the wires or signal wires (not shown) of the edge optical optical film group 22 are uniformly embedded therein for easy finishing. An independent separated positioning block is disposed on the lower portion 2322 of the coupling member 232, and a cable management slot is formed on the positioning block. This is also an equivalent replacement of the prior art for those skilled in the art.

In addition, referring to FIG. 2B, the backlight module 2 of the edge-lit liquid crystal display provided in the preferred embodiment further includes a plurality of strips 26, and the strip 26 is disposed corresponding to the strip 231, and the assembly is completed. The edge-lit optical film set 22 can then be pressed into the first accommodating space 25.

The remaining features in the second preferred embodiment, such as the forming material and manner of the backing plate and the side strip, the structural strength burden, the preferred assembly sequence, and the assembly method of the backing plate and the joint member are the same as in the first preferred embodiment. The details are not repeated here.

In addition to the edge-lit liquid crystal display backlight module provided by the first and second preferred embodiments, the present invention also provides a liquid crystal display, as described below. The features of the backlight module of the edge-lit liquid crystal display included in the liquid crystal display are substantially the same as those of the first and second preferred embodiments, so that all the components and interconnections of the backlight module 1 of the following edge-lit liquid crystal display are described. Please refer to Figures 1A through 1E together. Only the differences between the third preferred embodiment and the foregoing preferred embodiment will be described below.

Please refer to FIG. 3A and FIG. 3B , which are schematic diagrams showing the assembly and explosion of the liquid crystal display according to the second preferred embodiment of the present invention. The liquid crystal display 3 includes an outer frame 31, a display panel 32, an edge-lit liquid crystal display backlight module 1 and a back plate 14. The composition and features of the edge-lit liquid crystal display backlight module 1 are substantially the same as those of the first preferred embodiment. The edge-lit liquid crystal display backlight module 1 includes a light source 11, an edge-light optical film set 12, and a frame 13. The edge optical optical film group 12 can be composed of a light guide plate 121 and an optical film 122. The frame 13 includes a plurality of side strips 131 and a plurality of joint members 132. The assembly member 132 includes an upper portion 1321 and a lower portion 1322, and the upper portion 1321 and the lower portion 1322 have a first bent portion 1323 and a second bent portion 1324, respectively, and the first bent portion 1323 / the second bent portion 1324 are outwardly The extended first connecting portion 1325 and the second connecting portion 1326 are vertically joined to each other by the first connecting portion 1325 and the second connecting portion 1326 to form a second housing space 133. All of the side strips 131 are integrally connected to all of the joint members 132 to form a first accommodating space 15 , and the side optical optical film set 12 is received in the first accommodating space 15 . The interconnection relationship of the remaining components is substantially the same as that described in the first preferred embodiment, and the detailed description thereof will not be repeated.

Moreover, in a preferred assembly sequence, as shown in the exploded view of FIG. 3B, the lower portion 1322 of the coupling member 132 and the side strip 131 are first locked to form a square shape of the side strip 131-bonding member lower portion 1322. Then, the first retaining wall 1312 on the side strip 131 and the second retaining wall 141 on the backing plate 14 are positioned against each other, and the side strip 131 and the lower portion 1322 of the joint member are positioned on the backing plate 14 to be locked. After the light source 11 (here, the light-emitting diode light bar is taken as an example) is disposed on the side strip 131, the edge-light optical film set 12 (including the light guide plate 121 and the optical film 122) is sequentially placed on the side strip. The square portion of the lower portion 1322 of the 131-bonding member is formed, and the four corners of the side optical optical film group 12 are positioned against the positioning member 1328 on the lower portion 1322 of each of the coupling members 132. Then, the upper portion 1321 of the coupling member 132 is locked with the lower portion 1322 of the coupling member 132 by the bolt 134, and the two members form a complete coupling member 132. Then, the rubber strips 16 are disposed corresponding to the side strips 131, and the side optical optical film is disposed. The group 12 is press-fitted and fixed in the first accommodating space 15. Thereafter, the display panel 32 is placed on the backlight module 1 of the edge-lit liquid crystal display, and finally the outer frame 31 is disposed on the display panel 22 to complete the assembly of the liquid crystal display 3. The liquid crystal display 3 is assembled as described above. Figure 3A shows.

In addition, in addition to the above method of assembling the backlight module 1 of the edge-lit liquid crystal display and then placing the display panel 32 on the backlight module 1 of the edge-lit liquid crystal display, the display panel 32 may be first placed in the side-light mode. The upper portion 1321 of the coupling member 132 and the lower portion 1322 of the coupling member 132 are locked on the optical film group 12, and the display panel 22 is commonly accommodated in the first accommodating space 15.

In addition, in the preferred embodiment, the edge-lit liquid crystal display backlight module 1 (which includes the bonding members 13 disposed along the four corners of the side optical optical film group 12) is taken as an example. The edge-lit liquid crystal display backlight module 2 provided in the second preferred embodiment includes a bonding member 23 having a ㄈ-shaped structure along opposite sides of the side optical optical film group 22 instead of the above side. The liquid crystal display backlight module 1 is constructed to constitute the liquid crystal display 3 provided in the preferred embodiment, and is still equivalent to the conventional replacement of those skilled in the art.

The present invention has been clearly described by the various embodiments and the associated drawings, and may be implemented by those skilled in the art. However, the various embodiments of the present invention are intended to be illustrative and not restrictive, that is, the variations and modifications of the various embodiments described above are all in accordance with the present invention. Covered. Accordingly, the invention is defined by the scope of the appended claims.

1, 2. . . Edge-lit LCD backlight module

11, 21. . . light source

12, 22. . . Edge optical film set

121, 221. . . Light guide

122, 222. . . Optical film

223. . . Reflective diaphragm

13,23. . . frame

131, 231. . . Sidebar

1311, 2311. . . One end of the side strip 131

1312, 2312. . . First retaining wall

1313, 2313. . . Fixed hole

132, 232. . . Joint piece

1321, 2321. . . Upper

1322, 2322. . . Lower part

1323, 2323. . . First bend

1324, 2324. . . First connection

1325, 2325. . . Second bend

1326, 2326. . . Second connection

1327, 2327. . . Fixing bolt

1328, 2328. . . Positioning member

1329, 2329. . . Cable slot

133, 233. . . Second accommodation space

134, 234. . . bolt

135. . . Positioning block

1351. . . Locking hole

1352. . . Lock firmware

14, 24. . . Backplane

141, 241. . . Second wall

15,25. . . First accommodation space

16, 26. . . Rubber strip

3. . . LCD Monitor

31. . . Outer frame

32. . . Display panel

FIG. 1A is a schematic view showing the assembly of the backlight module of the edge-lit liquid crystal display according to the first preferred embodiment of the present invention.

FIG. 1B is a schematic diagram showing the explosion of the backlight module of the edge-lit liquid crystal display according to the first preferred embodiment of the present invention.

FIG. 1C is a schematic view showing the explosion of the joint member and the side strip portion according to the first preferred embodiment of the present invention.

FIG. 1D is a schematic view showing the assembly of the joint member and the side strip according to the first preferred embodiment of the present invention.

FIG. 1E is a schematic exploded view of a portion of a positioning block and a coupling member according to a first preferred embodiment of the present invention.

Fig. 1F is a schematic cross-sectional view taken along line AA of Fig. 1A of the present invention.

Fig. 1G is a schematic view showing another embodiment of the joint member according to the first preferred embodiment of the present invention.

FIG. 1H is a schematic view showing still another embodiment of the coupling member according to the first preferred embodiment of the present invention;

FIG. 2A is a schematic view showing the assembly of the backlight module of the edge-lit liquid crystal display according to the second preferred embodiment of the present invention.

FIG. 2B is a schematic diagram showing the explosion of the backlight module of the edge-lit liquid crystal display according to the second preferred embodiment of the present invention.

2C is a schematic view showing the explosion of the joint member and the side strip according to the second preferred embodiment of the present invention.

FIG. 2D is a schematic view showing the assembly of the joint member and the side strip according to the second preferred embodiment of the present invention.

FIG. 3A is a schematic view showing the assembly of a liquid crystal display according to a third preferred embodiment of the present invention.

FIG. 3B is a schematic view showing the explosion of the liquid crystal display according to the third preferred embodiment of the present invention.

1. . . Edge-lit LCD backlight module

11. . . light source

12. . . Edge optical film set

121. . . Light guide

122. . . Optical film

131. . . Sidebar

1311. . . One end of the side strip 131

1312. . . First retaining wall

1321. . . Upper

1322. . . Lower part

14. . . Backplane

141. . . Second wall

15. . . First accommodation space

16. . . Rubber strip

Claims (39)

An edge-lit liquid crystal display backlight module comprises a light source, a side optical optical film set, a frame and a back plate, and the frame is combined with the back plate, wherein the frame comprises: a plurality of a side strip disposed along the side of the side optical optical film set, and the light source is disposed on at least one of the side strips; and a plurality of joint members, the side strips are integrally connected with the joint members To form a first accommodating space, the side optical optical film is assembled therein. In the backlight module of the edge-lit liquid crystal display of claim 1, each of the bonding members has a second accommodating space for receiving one of the side strips therein. The edge-lit liquid crystal display backlight module of claim 2, wherein each of the bonding members has an upper portion and at least a lower portion, the upper portion having a first bent portion and a first connection extending outward from the first bent portion The second portion has a second bent portion and a second connecting portion extending outward from the second bent portion. The first connecting portion and the second connecting portion form the second receiving space. The edge-lit liquid crystal display backlight module of claim 1, wherein the bonding components are disposed at four corners of the backlight module of the edge-lit liquid crystal display. The edge-lit liquid crystal display backlight module of claim 1, wherein the bonding components are disposed on opposite sides of the backlight module of the edge-lit liquid crystal display. The edge-lit liquid crystal display backlight module of claim 3, wherein the upper portion and the lower portion of each of the bonding members are independent components, and each of the upper portions and the lower portions are interlocked to form a bonding member. The edge-lit liquid crystal display backlight module of claim 1, wherein each side strip further comprises a first retaining wall, whereby the plurality of first retaining walls of the plurality of side strips surround the first receiving space. The edge-lit liquid crystal display backlight module of claim 7, the backboard further comprising a plurality of second retaining walls, wherein the second retaining walls are disposed along the periphery of the backing plate, and each of the second retaining walls and each of the second retaining walls A retaining wall abuts against each other to position the frame to the backing plate. The edge-lit liquid crystal display backlight module of claim 1, wherein the light source is a light-emitting diode light bar. The edge-lit liquid crystal display backlight module of claim 3, wherein the second connecting portion further comprises a fixing plug, and the side strip further comprises a fixing hole corresponding to the fixing bolt, thereby the side strip The joint is fixedly connected. The backlight module of the illuminating liquid crystal display of claim 10 further includes a plurality of bolts correspondingly disposed on the fixing hole and the fixing bolt, so as to lock the side strip and the connecting member. For example, in the backlight module of the edge-lit liquid crystal display of claim 3, a lower portion of the bonding member is further provided with a positioning member for positioning the side optical optical film group. The backlight module of claim 3, wherein the lower portion of the bonding member further comprises a cable management slot. The edge-lit liquid crystal display backlight module of claim 3, further comprising a plurality of positioning blocks, wherein each positioning block system is correspondingly disposed with a lower portion of each of the bonding members, and the positioning block further comprises a cable management slot. The edge-lit liquid crystal display backlight module of claim 14, wherein the positioning block is formed by injection molding and has a locking hole. The backlight module of the edge-lit liquid crystal display of claim 1 further includes a plurality of strips, each strip being disposed corresponding to each strip. The edge-lit liquid crystal display backlight module of claim 1, wherein each of the side strips is extruded by aluminum. The edge-lit liquid crystal display backlight module of claim 1, wherein each of the bonding members is integrally formed. The backlight module of the edge-lit type liquid crystal display of claim 1, wherein the back panel is made of a plastic material. A liquid crystal display comprising an outer frame; a display panel; and a side light liquid crystal display backlight module comprising a light source, a side optical optical film set, a frame and a back plate, and the frame is coupled to the The backboard is combined and is characterized by: The frame includes: a plurality of edge strips disposed along the side of the edge optical optical film set, and the light source is disposed on at least one of the side strips; and a plurality of joint members, the edge strips are The bonding members are integrally connected to form a first accommodating space for accommodating the side optical optical film assembly therein. The liquid crystal display of claim 20, wherein the first accommodating space further accommodates the display panel. The liquid crystal display of claim 20, wherein each of the bonding members has a second accommodating space for receiving one of the side strips therein. The liquid crystal display of claim 22, wherein each of the bonding members has an upper portion and a lower portion, the upper portion having a first bent portion and a first connecting portion extending outward from the first bent portion, the lower portion having a The second bending portion and the second connecting portion extend outward from the second bending portion, and the first connecting portion and the second connecting portion together form the second receiving space. The liquid crystal display of claim 20, wherein the bonding components are disposed at four corners of the backlight module of the edge-lit liquid crystal display. The liquid crystal display of claim 20, wherein the bonding components are disposed on opposite sides of the backlight module of the edge-lit liquid crystal display. The liquid crystal display of claim 23, wherein the upper portion and the lower portion of each of the bonding members are separate components, and each of the upper portions and the lower portions are interlocked to form a bonding member. In the liquid crystal display of claim 20, each side strip further includes a first retaining wall, whereby the plurality of first retaining walls of the plurality of side strips surround the first receiving space. The liquid crystal display of claim 27, the backboard further includes a plurality of second retaining walls, and the second retaining walls are disposed along the periphery of the backing plate, and each of the second retaining walls and the first retaining walls abut each other Thereby, the frame is positioned on the backboard. The liquid crystal display of claim 20, wherein the light source is a light emitting diode light bar. The liquid crystal display of claim 23, wherein the second connecting portion further comprises a fixing And the side strip further includes a fixing hole corresponding to the fixing bolt, thereby fixing the side strip to the coupling member. The liquid crystal display of claim 30 further includes a plurality of bolts correspondingly disposed on the fixing hole and the fixing bolt, thereby locking the side strip to the coupling member. The liquid crystal display of claim 23, wherein a lower portion of the bonding member is provided with a positioning member for positioning the side optical optical film group. The liquid crystal display of claim 23, the lower portion of the bonding member further comprising a cable management slot. The liquid crystal display of claim 23, further comprising a plurality of positioning blocks, each of the positioning blocks is correspondingly disposed with a lower portion of each of the coupling members, and the positioning block further comprises a cable management slot. The liquid crystal display of claim 32, wherein the positioning block is injection molded and has a locking hole. The liquid crystal display of claim 20 further includes a plurality of strips, each strip being disposed corresponding to each strip. The liquid crystal display of claim 20, wherein each of the side strips is extruded in aluminum. The liquid crystal display of claim 20, wherein each of the bonding members is integrally formed. The liquid crystal display of claim 20, wherein the back panel is made of a plastic material.