Abstract:
A method for making a heatsink device to be incorporated into a backlight module of a liquid crystal display device is provided and the method comprises the steps of: a) providing a hollowed tube having a substantially rectangular cross section, and the tube including a first support portion, a second supporting, a first vertical section, and a second vertical section interlinked with each other; and b) cutting the hollowed tube along the first and second vertical sections along a longitudinal direction such that first heatsink unit configured with the first supporting portion and the first vertical section, and a second heatsink unit configured with the second supporting portion and the second vertical section are created. The disclosure of the present invention can readily reduce material cost, while promotes the design of light, slim and compact of the product.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     Embodiments of the present disclosure relate to liquid display technology, and more particularly to a liquid crystal device and the backplane thereof. 
     2. Discussion of the Related Art 
     Liquid crystal devices include liquid crystal panels, backlight modules and backplanes. Currently, the above components are separately manufactured and are then assembled together. For example, the liquid crystal panels, the backlight modules and the backplanes are manufactured in different factories and then transported to another factory for assembly. In the end, the assembly factory provides the assembled liquid crystal devices to consumers. 
     Nevertheless, for the liquid crystal devices assembled by manual processes, additional cost is thus needed. In addition, the backplane structure is more complex nowadays, and thus the assembly process is not efficient enough. 
     SUMMARY 
     In order to resolve the technical issue encountered by the prior art, the claimed invention introduce a liquid crystal device and a backplane module that may be automatically assembled, and thus the additional cost may be reduced. 
     In one aspect, a liquid crystal device with a liquid crystal panel, a backlight module, and a backplane module is disclosed. The backplane module includes a backplane for receiving and fixing the backlight module, a first support and a second support. The first support includes as first end and a second end. The first end of the first support includes a first receiving slot for receiving respective ends of the backplane and the liquid crystal panel. The second end of the first support includes a first latch and a second latch. The second latch is arranged between the first receiving slot and the first latch. The second support includes a first end and second end. The first end of the second support includes a second receiving slot for receiving the other ends of the backplane and the liquid crystal panel. The second end of the second support includes a third latch and a fourth latch, and the fourth latch is arranged between the second receiving slot and the third latch. Wherein the third latch engages with the first latch so that the first support and the second support are in a pre-position state. The second latch engages with the third latch and the first latch engages with the fourth latch so that the first support and the second support are in a positioned state. In the positioned state, the first receiving slot and the second receiving slot respectively abuts against the ends of the backplane and the liquid crystal panel. 
     Wherein the first latch is a first protrusion, the second latch is a second protrusion, the third latch is a first groove, the fourth latch is a second groove, in the pre-position state, the first protrusion engages with the first groove, and in the positioned state, the first protrusion engages with the second groove and the second protrusion engages with the first groove. 
     Wherein the first latch is a first hook, the second latch is a second hook, the third latch is a first slot, the fourth hatch is a second slot, in pre-position state, the first hook engages with the first slot, and in positioned state, the first hook engages with the second slot and the second hook engages with the first slot. 
     Wherein the first support includes a first bottom for supporting the backplane, a first wall for pressing the liquid crystal panel and a first sidewall connecting the first bottom and the first wall, the first sidewall is for abutting against one end of the backplane, and the first bottom, the first wall, and the first sidewall cooperatively define the first receiving slot  13 ; and the second support includes a second bottom for supporting the backplane, a second wall for pressing the liquid crystal panel, and a second sidewall connecting the second bottom and the second wall, the second sidewall is for abutting against the other end of the backplane, and the second bottom, the second wall, and the second sidewall cooperatively define the second receiving slot. 
     Wherein a guiding slot is arranged in the second end of the first support to guide the second support to slide in a predetermined direction; or a guiding slot is arranged in the second end of the second support to guide the second support to slide in a predetermined direction. 
     Wherein the first latch and the third latch are made by elastic materials so that the first latch is detached from the first receiving slot when extrusion pressure being applied to the first support and the second support in the guiding slot is larger than a predetermined value. 
     Wherein the backplane module includes a plurality of the first supports and second supports, and each of the first supports correspond to each of the second support. 
     In another aspect, a backplane module for as liquid crystal device is disclosed. The liquid crystal device includes a liquid crystal panel and a backlight module. The backplane module includes a backplane for receiving and fixing the backlight module, a first support, and a second support. The first support includes a first end and a second end. The first end of the first support includes a first receiving slot for receiving respective ends of the backplane and the liquid crystal panel. The second end of the first support includes a first latch and a second latch, and the second latch is arranged between the first receiving slot and the first latch. The second support includes a first end and second end, the first end of the second support includes a second receiving slot for receiving the other ends of the backplane and the liquid crystal panel. The second end of the second support includes a third latch. Wherein the third latch engages with the first latch so that the first support and the second support are in a pre-position state. The second latch engages with the third latch so that the first support and the second support are in a positioned state, and in the positioned state. The first receiving slot and the second receiving slot respectively abuts against the ends of the backplane and the liquid crystal panel. 
     Wherein the first latch is a first protrusion, the second latch is a second protrusion, the third latch is a groove, in the pre-position state, the first protrusion engages with the groove, and in the positioned state, the second protrusion engages with the groove; or the first latch is a first groove, the second latch is a second groove, the third latch is a protrusion, in the pre-position state, the first groove engages with the protrusion, and in the positioned state, the second groove engages with the protrusion. 
     Wherein the second end of the second support further includes a fourth batch arranged between the second receiving slot and the third latch, and in the positioned state, the fourth latch engages with the first latch. 
     Wherein the first latch is a first protrusion, the second latch is a second protrusion, the third latch is a first groove, the fourth latch is a second groove, in the pre-position state, the first protrusion engages with the first groove, and in the positioned state, the first protrusion engages with the second groove and the second protrusion engages with the first groove. 
     Wherein the first support includes a first bottom Liar supporting the backplane, a first wall for pressing the liquid crystal panel, and a first sidewall connecting the first bottom and the first wall, the first sidewall is for abutting against one end of the backplane, and the first bottom, the first wall, and the first sidewall cooperatively define the first receiving slot; and the second support includes a second bottom fir supporting the backplane, a second wall for pressing the liquid crystal panel, and a second sidewall connecting the second bottom and the second wall, the second sidewall is for abutting against the other end of the backplane, and the second bottom, the second wall, and the second sidewall cooperatively define the second receiving slot. 
     Wherein a guiding slot is arranged in the second end of the first support to guide the second support to slide in a predetermined direction; or a guiding slot is arranged in the second end of the second support to guide the second support to slide in a predetermined direction. 
     Wherein the first latch and the third latch are made by elastic materials so that the first latch is detached from the first receiving slot when extrusion pressure being applied to the first support and the second support in the guiding slot is larger than as predetermined value. 
     Wherein the first latch is a first hook, the second latch is a second hook, the third latch is a first slot, the fourth latch is a second slot, in pre-position state, the first hook engages with the first slot, and in positioned state, the first hook engages with the second slot and the second hook engages with the first slot. 
     Wherein the first support includes a first bottom tar supporting the backplane, a first wall for pressing the liquid crystal panel, and a first sidewall connecting the first bottom and the first wall, the first sidewall is for abutting against one end of the backplane, and the first bottom, the first wall, and the first sidewall cooperatively define the first receiving slot; and the second support includes a second bottom for supporting the backplane, a second wall for pressing the liquid crystal panel, and a second sidewall connecting the second bottom and the second wall, the second sidewall is for abutting against the other end of the backplane, and the second bottom, the second wall, and the second sidewall cooperatively define the second receiving slot. 
     Wherein a guiding slot is arranged in the second end of the first support to guide the second support to slide in a predetermined direction; or a guiding slot is arranged in the second end of the second support to guide the second support to slide in a predetermined direction. 
     Wherein the first latch at ad the third latch are made by elastic materials so that the first latch is detached from the first receiving slot when extrusion pressure being applied to the first support and the second support in the guiding slot is larger than a predetermined value. 
     Wherein the backplane module includes a plurality of the first supports and second supports, and each of the first supports correspond to each of the second support. 
     The backplane module includes the first support and the second support with two connection states. During the assembly process, the first support and the second support may be transferred from the pre-position state to the positioned state due to the extrusion pressure from the assembly apparatus. The backplane module may be automatically assembled so that the assembly efficiency is enhanced and the assembly cost of the backplane, module and the liquid crystal device are reduced. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic view of the structure of a liquid crystal device in accordance with a first embodiment, wherein the first support and the second support are in a pre-position state. 
         FIG. 2  is a cross-section view of the structure of the liquid crystal device of  FIG. 1 . 
         FIG. 3  is a schematic view of the structure cit the liquid crystal device of  FIG. 1 , wherein the first support and the second support are in a positioned state. 
         FIG. 4  is a cross-section view of the structure of the liquid crystal device of  FIG. 3 . 
         FIG. 5  is a schematic view of the structure of the first support and the second support in accordance with the first embodiment. 
         FIG. 6  is a schematic view of the structure of the first support and the second support of  FIG. 5 , wherein the first support and the second support are in the pre-position state. 
         FIG. 7  is a schematic view of the structure of the first support and the second support of  FIG. 6 , wherein the first support and the second support are in the positioned state. 
         FIG. 8  is a schematic view of the structure of the first support and the second support in accordance with a second embodiment, wherein the first support and the second support are in the pre-position state. 
         FIG. 9  is a schematic view of the structure of the first support and the second support of  FIG. 8 , wherein the first support and the second support are in the positioned state. 
         FIG. 10  is a schematic view of the structure of the first support and the second support in accordance with a third embodiment. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Embodiments of the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. 
     Referring to  FIGS. 1 to 4 , the liquid crystal device includes, but not limited to, a liquid crystal panel  50 , a backlight module  40 , and a backplane module. The backplane module includes, but not limited to, a backplane  30 , a first support  10 , and a second support  20 . The backplane  30  is for receiving and fixing the backlight module  40  and for protecting the backlight module  40  at the same time. In addition, structures on the top of the backplane  30  not only may press and fix the backlight module  40 , but also may support the liquid crystal panel  50 . 
     As the backplane  30 , the backlight module  40 , the liquid crystal panel  50  may be easily understood by the persons skilled in the art, the corresponding descriptions regarding the above components are omitted here. The concrete structure and the assembly methods of the first support  10  and the second support  20  will be described more fully hereinafter. 
     A first end of the first support  10  includes a first receiving slot  13  for receiving one ends of the backplane  30  and the liquid crystal panel  50 . A second end of the first support  10  includes a first latch  11  and a second latch  12 . The second latch  12  is arranged between the first receiving slot  13  and the first latch  11 . 
     A first end of the second support  20  includes a second receiving slot  23  for receiving the other ends of the backplane  30  and the liquid crystal panel  50 . A second end of the second support  20  includes a third latch  21  and a fourth latch  22 . The fourth latch  22  is arranged between the second receiving slot  23  and the third latch  21 . 
     In the embodiment, the first receiving slot  13  and the second receiving slot  23  are U-shaped, in other embodiments, the first receiving slot  13  and the second receiving slot  23  may have other shapes only if the second receiving slot  23  may be engaged with respective ends of the backplane  30  and the liquid crystal panel  50 . 
     In addition, the first receiving slot  13  and the second receiving slot  23  are for receiving respective ends of the backplane  30  and the liquid crystal panel  50 . It is understood that the shapes of the first receiving slot  13  and the second receiving slot  23  may be changed only if the first receiving slot  13  and the second receiving slot  23  may abut against on respective ends of the backplane  30  and the liquid crystal panel  50 . 
     When the first: support  10  and the second support  20  are in a pre-position state, the first latch  11  engages with the third latch  21 . At this time, the first receiving slot  13  and the second receiving slot  23  have not abutted against the respective ends of the backplane  30  and the liquid crystal panel  50 . There is a certain distance between the respective end of the backplane  30  and the first receiving slot  13 , and between the respective end of the backplane  30  and the second receiving slot  23 . Similarly, there is a certain distance between the respective end of the liquid crystal panel  50  and the first receiving slot  13 , and between the respective end of the liquid crystal panel  50  and the second receiving slot  23 . When the first support  10  and the second support  20  are in a positioned state, the first latch  11  engages with the fourth latch  22 , and the second latch  12  engages with the third latch  21 . At the same time, the first receiving slot  13  and the second receiving slot  23  respectively abuts against the ends of the backplane  30  and the liquid crystal panel  50 . 
     That is to say, when the first support  10  and the second support  20  transfer from the pre-position state to the positioned state, the first latch  11  has detached from the third latch  21 , and then the first latch  11  engages with the fourth latch  22 . At the same time, the first receiving slot  13  and the second receiving slot  23  move inward so as to respectively abut on the ends of the backplane  30  and the liquid crystal panel  50 . 
     Referring to  FIG. 5 , in the embodiment, a guiding slot  14  is arranged in the second end of the first support  10  to facilitate the slide between the first support  10  and the second support  20 . The guiding slot  14  is for guiding the second support  20  to slide in a predetermined direction. In other embodiments, the guiding slot  14  may he arranged on the second end of the second support  20 . 
     In one embodiment, the length of the guiding slot  14  may be the same with the distance between the latches. In other embodiments, the length of the guiding slot  14  may be the same with that of the first support  10 . The guiding slot  14  may be, but not limited to, arranged in the bottom of the first support  10  or the second support  20 . In addition, the guiding slot  14  may be L-shaped barricade connected with one side of the first support  10  or the second support  20 . 
     Referring to  FIGS. 5 to 7 , specifically, the first support  10  includes a first bottom  131 , a first wall  133 , and a first sidewall  132  connecting the first bottom  131  and the first wall  133 . The first bottom  131  is for supporting the backplane  30 . The first wall  133  is for pressing the liquid crystal panel  50 . The first sidewall  132  is for abutting against one end of the backplane  30 . The first bottom  131 , the first  133 , and the first sidewall  132  cooperatively define the first receiving slot  13 . 
     Similarly, the second support  20  includes a second bottom  231 , a second wall  233 , and a second sidewall  232  connecting the second bottom  231  and the second wall  233 . The second bottom  231  is for supporting the backplane  30 . The second wall  233  is for pressing the liquid crystal panel  50 . The second sidewall  232  is for abutting against the other end of the backplane  30 . The second bottom  231 , the second wall  233 , and the second sidewall  232  cooperatively define the second receiving slot  23 . 
     It is to be noted that the concrete structures of the first bottom  131 , the second bottom  231 , the first sidewall  132 , the second sidewall  232 , the first wail  133 , and the second wall  233  of the first support  10  and the second support  20  may he flexibly configured. For example, the sidewalls may be a plurality of pillars spaced from each other, and the pillars connect the above bottoms and walls. The shape of the walls may he rectangular, semicircle, or even triangle. Similarly, the size of the bottoms, walls, and sidewalls may be changed when needed. 
     In the first embodiment, the first latch  11  is a first protrusion  110 , and the second latch  12  is a second protrusion  120 . The third latch  21  is a first groove  210 , and the fourth latch  22  is a second groove  220 . In other embodiments, the first latch  11  and second latch  12  may he grooves, and the third latch  21  and the fourth latch  22  may be protrusions. In other embodiments, the third latch  21  and the fourth latch  22  may be through holes so as to engage with the protrusions of the first latch  11  and the second latch  12 . 
     In the pre-position state, the first protrusion  110  engages with the first groove  210 . In the positioned state, the first protrusion  110  engages with the second groove  220 , and the second protrusion  120  engages with the first groove  210 . 
     The automatic assembly of the backplane module of the first embodiment will now be described with reference to FIGS,  5  to  7 . It is shown in  FIG. 5  that the concrete structure of the first support  10  and the second support  20  are symmetric. In this way, the first support  10  and the second support  20  may he manufactured by the same mold so that the mold cost is reduced. Referring to  FIGS. 6 and 7 , before being assembled, the first support  10  and the second support  20  are in the pre-positioned state, and the first protrusion  110  and the first groove  210  are engaged. It is to be noted that the first support  10  and the second support  20  may be configured to he in the pre-positioned state when being manufactured. 
     During the assembly process, the extrusion pressure from robotic arms of the assembly apparatus has forced the first protrusion  110  and the first groove  210  to be detached, the first protrusion  110  and the second groove  220  to be engaged with each other, and the second protrusion  120  and the first groove  210  to be engaged with each other so that the first support  10  and the second support  20  are in the positioned state. 
     In the embodiment, the latches include two protrusion  110 ,  120 , and two grooves  220 ,  220 . In other embodiments, the latches may include more than two protrusions and grooves. In addition, the concrete structures of the protrusions and the moves may be triangle or rectangle. It is understood that the structure, size, and shape of the protrusions and the grooves are not limited to the above disclosure. 
     In other embodiments, the tour latches may be hooks and slots, or positioning pillars and positioning holes. For example, the first latch  11  is a first hook, and the second latch  12  is a second hook. The third latch  21  is a first slot, and the fourth latch  22  is a second slot. In pre-position state, the first hook engages with the first slot. In positioned state, the first hook engages with the second slot, and the second hook engage s with the first slot. It is understood that the structure, size and shape of the hooks and the slots are not limited to the above disclosure. 
     Referring to  FIGS. 1 and 3 , in the first embodiment, the liquid crystal device includes two backplane modules. In other embodiments, the liquid crystal device may include, but not limited to one, three, six backplane modules. In the preferable embodiments, there is a plurality of backplane modules spaced apart from each other. In addition, the arrangement of the backplane modules may be variably configured, such as a cross-shaped arrangement. It is understood that the concrete structure, such as width or thickness, size, and arrangement or the backplane module are not limited thereto. 
     In the embodiment, the first latch  11  and the third latch  21  are made by elastic materials, such as plastic or silica gel. As such, the first latch  11  and the first receiving slot  13  are detached when the extrusion pressure being applied to the first support  10  and the second support  20  in the guiding slot  14  is larger than a predetermined value. It is understood that the first support  10  and the second support  20  may be made by elastic materials. 
     For example, the first protrusion  110  of the first latch  11  may be made by plastic materials. When the extrusion pressure is large enough to deform the elastic materials, the list latch  11  may be detached from the first receiving slot  13 . Generally, the first groove  210  is also made by elastic materials so as to protect the first protrusion  110  from being scratched. In addition, adopting the elastic materials may also reduce the cost of the backplane and the liquid crystal device. It is to he noted that the elastic materials is a preferred solution, but not the only solution. The harder materials may also he adopted by making the corners to be smooth. As such, the materials of the first latch  11  and the third latch  21 , also the second latch  12  and the fourth latch  22 , are not limited. 
     In the first embodiment, the first support  10  includes the first latch  11  and the second latch  12 , and the second support  20  includes the third latch  21  and the fourth latch  22 . The first support  10  and the second support  20  have two connecting states: the pre-position state and the positioned state. Before being assembled, the first support  10  and the second support  20  are in the pre-position state. During the assembly process, the first latch  11  and the third latch  21  are detached due to the extrusion pressure. In the end, the first support  10  and the second support  20  transfers to the positioned state. Therefore, the backplane module of the first embodiment may be automatically assembled so that the assembly cost is reduced. 
       FIGS. 8 and 9  are schematic views of the structure of the backplane module in accordance with the second embodiment. The difference of the backplane module between the first embodiment and the second embodiment resides in that the latches of the backplane module of the second embodiment are protrusions and through holes. 
     Specifically, the first support  80  includes a first protrusion  81  (the first latch) and a second protrusion  82  (the second latch). Correspondingly, the second support  90  includes a first through hole  91  (the third latch) and a second through hole  92  (the fourth latch). The protrusions may pass through the through holes. When the first support  80  and the second support  90  are in the pre-position state, the first protrusion  81  passes through the first through hole  91 . When the first support  80  and the second support  90  are in the positioned state, the list protrusion  81  passes through the second through hole  92 , and the second protrusion  82  passes  11  rough the first through hole  91 . 
     As the concrete structure and the assembly method of the backplane module are described fully in the first embodiment, the corresponding detail descriptions are omitted hereinafter. However, the shape and the number of the protrusions and the through holes may be flexibly configured. It is understood that the backplane module may be automatically assembled so that the assembly cost of the backplane and the liquid crystal device may be reduced accordingly. 
       FIG. 10  is a schematic view of the structure or the first support and the second support in accordance with a third embodiment. In the third embodiment, the liquid crystal device includes the liquid crystal panel (not shown), the backlight module (not shown), and the backplane module. The backplane module includes the backplane (not shown), a first support  60 , and a second support  70 . 
     A first end of the first support  60  includes a first slot  63  for receiving respective ends of the backplane and the liquid crystal panel. A second end of the first support  60  includes a first latch and a second latch. The second latch is arranged between the first receiving slot  63  and the first latch. A first end of the second support  70  includes a second receiving slot  72  for receiving the other respective ends of the backplane and the liquid crystal panel. A second end or the second support includes a third latch  21 . 
     When the first support  60  and the second support  70  are in the pre-position state, the first latch engages with the third latch. When the first support  60  and the second support  70  are in the positioned state, the second latch engages with the third latch. 
     Specifically the first latch is a first protrusion  61 , the second latch is a second protrusion  62 , and the third latch is a groove  71 . In other embodiments, the first latch and the second latch may be grooves, and the third latch may he a protrusion. 
     Comparing to the first embodiment, the second support  70  includes a third latch, and the second support  70  does not include a fourth latch. In other words, the concrete structure of the first support  60  and the second support  70  are simpler than that of the first embodiment. 
     As the concrete structure and the assembly method of the backplane module are described fully in the first embodiment, the corresponding detail descriptions are omitted hereinafter. It is understood that the backplane module of the third embodiment may also be automatically assembled so that the assembly cost of the backplane and the liquid crystal device may be reduced accordingly. 
     In the fourth embodiment, a liquid crystal device includes the backplane module disclosed in the first, the second, or the third embodiment. By adopting the above backplane module, the liquid crystal device may he automatically assembled so as to reduce the assembly cost. 
     It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.