CN212647211U - Back plate and double-screen liquid crystal display device comprising same - Google Patents
Back plate and double-screen liquid crystal display device comprising same Download PDFInfo
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- CN212647211U CN212647211U CN202021947763.4U CN202021947763U CN212647211U CN 212647211 U CN212647211 U CN 212647211U CN 202021947763 U CN202021947763 U CN 202021947763U CN 212647211 U CN212647211 U CN 212647211U
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Abstract
The embodiment of the application discloses a back plate and a double-screen liquid crystal display device comprising the same. The embodiment includes a back plate including first and second opposite sides and third and fourth opposite sides, a first side edge of the back plate being formed with a support structure for supporting first and second liquid crystal display devices, a second side edge of the back plate being formed with a first fixing structure for fixing the first and second liquid crystal display devices, a third side edge of the back plate being formed with a second fixing structure for fixing the first and second liquid crystal display devices, and a fourth side edge of the back plate being formed with a third fixing structure for fixing the first and second liquid crystal display devices. The double-screen liquid crystal display device provided with the back plate of the embodiment can realize the independent double-screen display function, and simultaneously meets the requirements of small size specification, light weight, thin thickness and narrow frame of the double-screen liquid crystal display device.
Description
Technical Field
The present application relates to the field of display technology. And more particularly, to a back plate and a dual-screen liquid crystal display device including the same.
Background
The liquid crystal display device has the advantages of being light and thin, low in energy consumption, free of radiation and the like, is widely applied to various occasions, along with continuous innovative development of wearable equipment and a vehicle-mounted internet of things, the use requirements of the liquid crystal display device are more and more diversified and complicated, the large-size liquid crystal display device and a plurality of independently controlled display screens are often required to be configured in many occasions, and therefore the design of a double-screen display system (namely an NB system) is achieved.
In the prior art, two display devices are usually spliced together in the direction of alignment fitting or screw fixation, so that double-screen display is realized. The thickness of the double-screen display device assembled in the mode in the prior art is generally thick, meanwhile, the weight is large, the frame is wide, the experience of a user is influenced, and the design requirements of the user on the size specification of the double-screen display device are difficult to meet.
SUMMERY OF THE UTILITY MODEL
An object of the present application is to provide a back plate and a dual-screen liquid crystal display device including the same, so as to solve at least one of the problems existing in the prior art.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the first aspect of the present application provides a back plate for a dual-screen liquid crystal display device including a first liquid crystal display device and a second liquid crystal display device, the back plate including first and second opposite sides and third and fourth opposite sides, a support structure for supporting the first and second liquid crystal display devices being formed at a first side edge of the back plate, a first fixing structure for fixing the first and second liquid crystal display devices being formed at a second side edge of the back plate, a second fixing structure for fixing the first and second liquid crystal display devices being formed at a third side edge of the back plate, and a third fixing structure for fixing the first and second liquid crystal display devices being formed at a fourth side edge of the back plate.
Load the double screen liquid crystal display device of the backplate that this application first aspect provided, can realize the double screen independent display function, this backplate is through configuration supporting part and first fixed knot structure simultaneously, two liquid crystal display device of second fixed knot structure and third fixed knot structure support fixation, two same backplate of liquid crystal display device sharing, and it is fixed to need not to use gluey frame and frame, reduce double screen liquid crystal display device's whole thickness and weight, and still can save single backplate of preparation and two gluey frames, the mould expense and the equipment expense of frame, save research and development and cost of manufacture.
In one embodiment, the support structure is a first structure, the first structure includes a plurality of first support portions and a plurality of second support portions which are alternately arranged, the first support portion includes a first extending portion formed by extending the first side edge of the back plate outwards and a first vertical portion formed by bending the first extending portion edge upwards, and the second support portion includes a second extending portion formed by extending the first side edge of the back plate outwards and a second vertical portion formed by bending the second extending portion edge downwards.
The supporting structure of the embodiment can effectively support and fix the lateral entrance type backlight source and the display panel of the double-screen liquid crystal display device, and simultaneously fix the positions of the liquid crystal display panel and the lateral entrance type backlight source.
In one embodiment, the first fixing structure is a second structure, and the second structure includes an extending portion formed by extending the side edge of the back plate outwards, a connecting portion formed by bending the edge of the extending portion upwards, a bending portion formed by bending the edge of the connecting portion outwards, and a vertical portion formed by extending the edge of the bending portion downwards.
The first fixing structure of the embodiment can realize the simultaneous supporting and fixing of the bottom surfaces of the two liquid crystal display panels and the two sides of the film material assembly.
In one embodiment, the second and third securing structures are each a second structure; the second structure comprises an extending part formed by extending the side edge of the back plate outwards, a connecting part formed by bending the edge of the extending part upwards, a bending part formed by bending the edge of the connecting part outwards and a vertical part formed by extending the edge of the bending part downwards.
The second fixing structure and the third fixing structure of this embodiment further support and fix the two liquid crystal display panels and the film material from the third side and the fourth side.
In one embodiment, the second and third securing structures are each a third structure; the third structure is including at least one first fixed part and at least one second fixed part that set up in turn, first fixed part include by the side of backplate is along the extension that outwards extends the formation, by the vertical portion that the extension border upwards bending type formed, by the extension that the outside bending type formed is followed to the vertical portion, the second fixed part include by the side of backplate is along the extension that outwards extends the formation, by the vertical portion that the extension border downwards bending type formed, by the extension that the outside bending type formed is followed to the vertical portion.
A second aspect of the present application provides a dual-screen liquid crystal display device, including a first liquid crystal display device and a second liquid crystal display device, where the first liquid crystal display device includes a first lateral entrance type backlight source, a first light guide plate, a first film material assembly, and a first liquid crystal display panel, and the second liquid crystal display device includes a second lateral entrance type backlight source, a second light guide plate, a second film material assembly, and a second liquid crystal display panel; the dual-screen liquid crystal display device further comprises the back plate provided by the first aspect of the present application, the back plate comprises a first side and a second side which are opposite to each other, and a third side and a fourth side which are opposite to each other, a supporting structure for supporting the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the first side of the back plate, a first fixing structure for fixing the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the second side of the back plate, a second fixing structure for fixing the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the third side of the back plate, and a third fixing structure for fixing the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the fourth side of the back plate.
Two liquid crystal display devices in the dual-screen liquid crystal display device provided by the second aspect of the application share the same back plate, a liquid crystal display panel is not required to be fixed by adopting a rubber frame and a frame, the whole thickness and weight of the dual-screen liquid crystal display device are reduced, meanwhile, the expansion gap between the light guide plate and the film material assembly can be effectively increased, the size requirement of an ultra-narrow frame is met, the design requirement of a user on the size specification (thin thickness, light weight and narrow frame) of the dual-screen liquid crystal display device is met, and the experience feeling of the user is improved; and the mould expense and the assembly expense for manufacturing a single back plate, two rubber frames and a frame can be saved, the material quantity and the expense of the liquid crystal display device are reduced, the assembly expense of the backlight module is reduced, the research and development expense of the double-screen liquid crystal display device and the manufacturing expense of a product are integrally reduced, the manufacturing time of the double-screen liquid crystal display device is saved, and the manufacturing efficiency of the double-screen liquid crystal display device is improved.
In one embodiment, the support structure is a first structure, the first structure comprises a plurality of first support parts and a plurality of second support parts which are alternately arranged, the first support parts comprise first extending parts formed by extending the first side edges of the back plates outwards and first vertical parts formed by bending the first extending part edges upwards; the second support part comprises a second extending part formed by extending the first side edge of the back plate outwards and a second vertical part formed by bending the edge of the second extending part downwards;
the first liquid crystal display panel is fixedly bonded to the first lateral entrance type backlight source through a first colloid, and the first lateral entrance type backlight source is fixedly bonded to the first light guide plate through a second colloid; the second liquid crystal display panel is fixedly bonded through a third colloid to the second side-in type backlight source, and the second side-in type backlight source is fixedly bonded through a fourth colloid to the second light guide plate.
The supporting structure of this embodiment supports the first liquid crystal display panel and the first lateral entrance type backlight of fixing the first liquid crystal display device and supports the second liquid crystal display panel and the second lateral entrance type backlight of fixing the second liquid crystal display device respectively through setting up first supporting part and second supporting part, guarantees that the position of first liquid crystal display panel, first colloid, first lateral entrance type backlight, second liquid crystal display panel, second colloid and second lateral entrance type backlight is fixed, prevents to shift, guarantees double-screen liquid crystal display device's reliability.
In one embodiment, the first fixing structure is a second structure, and the second structure comprises an extending part formed by extending the side edge of the back plate outwards, a connecting part formed by bending the edge of the extending part upwards, a bending part formed by bending the edge of the connecting part outwards, and a vertical part formed by extending the edge of the bending part downwards;
the first liquid crystal display panel is fixedly bonded to the first membrane material through a fifth adhesive body, and the fifth adhesive body extends outwards and is bonded to the outer side of the vertical part of the first fixing structure; the second liquid crystal display panel is fixedly bonded to the second membrane material through a sixth colloid, and the sixth colloid extends outwards and is bonded to the outer side of the vertical portion of the first fixing structure.
In this embodiment, the liquid crystal display panels and the film material assemblies of the two liquid crystal display devices are respectively bonded with the vertical part of the first fixing structure through the fifth colloid and the sixth colloid, the first fixing structure can fix the colloid in a positioning manner, and the liquid crystal display panels can be fixed at the same time.
In one embodiment, the second and third securing structures are each a second structure; the second structure comprises an extending part formed by extending the side edge of the back plate outwards, a connecting part formed by bending the edge of the extending part upwards, a bending part formed by bending the edge of the connecting part outwards and a vertical part formed by extending the edge of the bending part downwards.
The first liquid crystal display panel is fixedly bonded to the first membrane material through a seventh colloid, and the seventh colloid extends outwards and is bonded to the outer side of the vertical part of the second fixing structure; the second liquid crystal display panel is fixedly bonded to the second film material through an eighth colloid, and the eighth colloid extends outwards and is bonded to the outer side of the vertical part of the second fixing structure;
the first liquid crystal display panel is fixedly bonded to the first membrane material through a ninth adhesive body, and the ninth adhesive body extends outwards and is bonded to the outer side of the vertical part of the third fixing structure; the second liquid crystal display panel is fixedly bonded to the second film material through a tenth glue body, and the tenth glue body extends outwards and is bonded to the outer side of the vertical portion of the third fixing structure.
This embodiment is through setting up second fixed knot structure and third fixed knot to the second structure, through the colloid with two liquid crystal display device's liquid crystal display panel and membrane material subassembly in addition both sides respectively with the second fixed knot construct, the vertical portion of third fixed knot construct bonds, through the second fixed knot construct, the third fixed knot construct, both can fix a position the colloid that bonds between liquid crystal display panel and membrane material subassembly, further fixed liquid crystal display panel and membrane material subassembly simultaneously, in addition, liquid crystal display panel passes through the colloid and presses at the membrane material subassembly, thereby can play the effect of support in the Z direction and fixed liquid crystal display panel to liquid crystal display panel.
In one embodiment, the second and third securing structures are each a third structure; the third structure is including at least one first fixed part and at least one second fixed part that set up in turn, first fixed part include by the side of backplate is along the extension that outwards extends the formation, by the vertical portion that the extension border upwards bending type formed, by the extension that the outside bending type formed is followed to the vertical portion, the second fixed part include by the side of backplate is along the extension that outwards extends the formation, by the vertical portion that the extension border downwards bending type formed, by the extension that the outside bending type formed is followed to the vertical portion.
The first liquid crystal display panel is fixedly bonded to the extension part of the second fixing structure through an eleventh glue body and is fixedly bonded to the extension part of the third fixing structure through a twelfth glue body; the second liquid crystal display panel is fixedly bonded to the extension portion of the second fixing structure through a thirteenth colloid, and is fixedly bonded to the extension portion of the third fixing structure through a fourteenth colloid.
This embodiment is through setting up second fixed knot structure and third fixed knot to the third structure, through the colloid with the other both sides of two liquid crystal display device's liquid crystal display panel and membrane material subassembly respectively with the extension portion bonding of second fixed knot structure, third fixed knot structure to play the effect of support and fixed liquid crystal display panel in the Z direction to liquid crystal display panel. The beneficial effect of this application is as follows:
the application aims at the problems in the prior art, and provides a back plate and a double-screen liquid crystal display device comprising the same, which can realize the independent display function of double screens, and simultaneously two liquid crystal display devices share the same back plate, so that the overall thickness and weight of the double-screen liquid crystal display device are reduced, and meanwhile, the double-screen liquid crystal display device does not need to adopt a rubber frame to fix a liquid crystal display panel, thereby increasing the expansion gap between a light guide plate and a membrane material assembly, meeting the size requirement of an ultra-narrow frame, namely meeting the design requirement of a user on the size specification of the double-screen display device, and improving the experience of the user; and the mould expense and the assembly expense for manufacturing the second back plate, the two rubber frames and the frame can be saved, the material quantity and the expense of the liquid crystal display device are reduced, the assembly expense of the backlight module is reduced, the research and development expense of the double-screen liquid crystal display device and the manufacturing expense of a product are integrally reduced, the manufacturing time of the double-screen liquid crystal display device is saved, and the manufacturing efficiency of the double-screen liquid crystal display device is improved.
Drawings
The following describes embodiments of the present application in further detail with reference to the accompanying drawings.
Fig. 1 illustrates a cross-sectional view of a dual screen display device in one embodiment of the present application.
FIG. 2 is a cross-sectional view of a dual screen display device in a further embodiment of the present application
FIG. 3 is a cross-sectional view of a dual screen display device in a further embodiment of the present application
Fig. 4 shows a schematic structural diagram of a back plate of an embodiment of the present application.
Fig. 5 shows an enlarged view at a in fig. 4.
Fig. 6 shows a schematic structural diagram of a back plate of yet another embodiment of the present application.
Fig. 7 shows an enlarged view at B in fig. 6.
Fig. 8 shows a schematic structural diagram of a back plate of yet another embodiment of the present application.
Fig. 9 shows an enlarged view at C in fig. 8.
Detailed Description
In order to more clearly explain the present application, the present application is further described below with reference to the embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not intended to limit the scope of the present application.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is further noted that, in the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
To solve the technical problems in the prior art, an embodiment of the present application provides a dual-screen liquid crystal display device, as shown in fig. 1 to 3, the dual-screen liquid crystal display device includes a first liquid crystal display device 10 and a second liquid crystal display device 20, the first liquid crystal display device 10 includes a first side-in type backlight 11, a first light guide plate 12, a first film material assembly 13, a first liquid crystal display panel 14, and a first reflector plate 15, the second liquid crystal display device 20 includes a second side-in type backlight 21, a second light guide plate 22, a second film material assembly 23, a second liquid crystal display panel 24, and a second reflector plate 25; wherein, the film material component comprises a prism film and a diffusion sheet.
The dual-screen liquid crystal display device further includes a back plate 30 as shown in fig. 4 to 9, the back plate 30 includes opposite lower and upper sides and opposite left and right sides, a supporting structure 31 for supporting the first and second liquid crystal display devices 10 and 20 is formed at a lower side edge of the back plate 30, an upper fixing structure 32 for fixing the first and second liquid crystal display devices 10 and 20 is formed at an upper side edge of the back plate 30, a left fixing structure 33 for fixing the first and second liquid crystal display devices 10 and 20 is formed at a left side edge of the back plate 30, and a right fixing structure 34 for fixing the first and second liquid crystal display devices 10 and 20 is formed at a right side edge of the back plate 30.
As shown in fig. 1 to 3, the first liquid crystal display panel 14, the first film assembly 13, the first light guide plate 12, and the first reflective sheet 15 are sequentially disposed on the upper surface of the back plate 30, and the second liquid crystal display panel 24, the second film assembly 23, the second light guide plate 22, and the second reflective sheet 25 are sequentially disposed on the lower surface of the back plate 30. In a specific embodiment, as shown in fig. 3, the first side-in backlight 11 and the second side-in backlight 21 are respectively disposed on the lower side of the back plate 30.
It can be understood that the back plate can also be applied to a direct-in type backlight source, and in an embodiment applied to the direct-in type backlight source, the first liquid crystal display panel, the first film material assembly, the first light guide plate, the first reflector plate and the first direct-in type backlight source are sequentially arranged on the upper side surface of the back plate; the lower side surface of the back plate is sequentially provided with a second liquid crystal display panel, a second film material component, a second light guide plate, a second reflector plate and a second direct backlight source.
In the dual-screen liquid crystal display device of the embodiment, the first liquid crystal display device 10 and the second liquid crystal display device 20 share the same back plate 30, and the first liquid crystal display panel 14 and the second liquid crystal display panel 24 are not required to be fixed by adopting a rubber frame and a frame, so that the overall thickness and weight of the dual-screen liquid crystal display device are reduced, the expansion gaps between the first light guide plate 12 and the first film material assembly 13 and between the second light guide plate 22 and the second film material assembly 23 can be effectively increased, the size requirement of an ultra-narrow frame is met, the design requirements of a user on the size specification (thin thickness, light weight and narrow frame) of the dual-screen liquid crystal display device are met, and the experience feeling of the user is improved; and only need design a set of backplate mould, can save the mould expense and the equipment expense of making second backplate and two gluey frames, reduce first liquid crystal display device 10 and second liquid crystal display device 20's quality of material quantity and expense, reduce backlight unit's equipment expense, wholly reduce double-screen liquid crystal display device's research and development expense and the cost of manufacture of product, save double-screen liquid crystal display device preparation time, improve double-screen liquid crystal display device's preparation efficiency.
In a specific embodiment, as shown in fig. 3 to 9, the supporting structure 31 is a first structure, i.e., a zigzag folded structure, the first structure 31 includes a plurality of first supporting portions 311 and a plurality of second supporting portions 312, which are alternately arranged, the first supporting portion 311 includes a first extending portion 3111 formed by extending the lower side edge of the back plate 30 outwards and a first vertical portion 3112 formed by bending the edge of the first extending portion 3111 upwards; the second support portion 312 includes a second extension portion 3121 formed by extending the lower side edge of the back plate 30 outward and a second vertical portion 3122 formed by bending the edge of the second extension portion 3121 downward.
The lower end of the first liquid crystal display panel 14 is fixed to the first side-in type backlight 11 by a first adhesive 40, the first side-in type backlight 15 is fixed to the first light guide plate 12 by a second adhesive 41, the first side-in type backlight 11 and the first light guide plate 12 are fixed to the lower side edge of the back plate 30 by a support tape 42, and the lower end of the first liquid crystal display panel 14 and the lower end of the first side-in type backlight 15 are fixed to the first vertical portion 3112 of the support structure 31 by a support tape 42, so as to position the first liquid crystal display panel 14; the lower end of the second lcd panel 24 is bonded and fixed to the second side-in type backlight 21 through a third glue 43, and the second side-in type backlight 21 is bonded and fixed to the second light guide plate 22 through a fourth glue 44. In addition, the second side-in type backlight 21 and the second light guide plate 22 are adhesively fixed to the lower side edge of the back plate 30 by the support tape 42, and the lower end of the second liquid crystal display panel 24 and the lower end of the second side-in type backlight 21 are adhesively fixed to the second vertical portion 3122 of the support structure 31 by the support tape 42, so that the second liquid crystal display panel 24 is positioned.
The support structure of this embodiment is provided with a first support part 311 and a second support part 312, wherein the first support part 311 fixes the first liquid crystal display panel 14 and the first side-in type backlight 11, and the top surface of the back plate 30 supports and fixes the first side-in type backlight 11 and the first light guide plate 12; the second supporting portion 312 fixes the second lcd panel 24 and the second lateral backlight 21 of the second lcd device 20 from the lower side, and the top surface of the back plate 30 supports and fixes the second lateral backlight 21 and the second light guide plate 22, so as to ensure that the positions of the first lcd panel 14, the first lateral backlight 11, the second lcd panel 24, and the second lateral backlight 22 are fixed, prevent displacement, and ensure the reliability of the dual-screen lcd device. In another specific embodiment, the first side-in backlight 11 and the second side-in backlight 21 are light bars with a flip-chip structure.
In a specific embodiment, as shown in fig. 1 to 5, the upper fixing structure 32 on the upper side of the back plate 30 is a second structure, that is, a double-folded extension structure, and the upper fixing structure 32 on the upper side of the back plate 30 includes a third extending portion 321 formed by extending the edge of the upper side of the back plate 30 outwards, a first connecting portion 322 formed by bending the edge of the third extending portion 321 upwards, a first bending portion 323 formed by bending the edge of the first connecting portion 322 outwards, and a third vertical portion 324 formed by extending the edge of the first bending portion 323 downwards. In another specific embodiment, the length of the third upright portion 324 is the distance between the first film assembly 13 and the second film assembly 23. As shown in fig. 3, the first connection portion 322 of the double-folded extension structure is formed by being bent in a direction close to the first liquid crystal panel 14, but it is understood that the first connection portion of the double-folded extension structure may be formed by being bent in a direction close to the second liquid crystal panel.
Wherein, the upper side of the first liquid crystal display panel 14 is fixed on the upper side of the first film 13 by the fifth glue body 45, and the fifth glue body 45 extends outwards and is adhered to the outer side of the third vertical portion 324 of the upper fixing structure 32; similarly, the second lcd panel 24 is fixed to the second film 23 by the sixth colloid 46, and the sixth colloid 46 extends outward and is adhered to the outer side of the third vertical portion 324 of the upper fixing structure 32. In another specific embodiment, the fifth colloid and the sixth colloid may be the same fixing adhesive tape, the first film and the first liquid crystal display panel and the second film and the second liquid crystal display panel are respectively bonded through two ends of the same fixing adhesive tape, and a middle portion of the fixing adhesive tape is fixedly bonded to an outer side of the first vertical portion of the upper fixing structure.
In this embodiment, the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24, and the second film material assembly 23 of the first liquid crystal display device 10 and the second liquid crystal display device 20 are respectively bonded to the third vertical portion 324 of the upper fixing structure 32 on the upper side of the back plate 30 through the fifth colloid 45 and the sixth colloid 46, so that the fifth colloid 45 and the sixth colloid 46 can be positioned and fixed, and the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24, and the second film material assembly 23 can also be fixed; in addition, the first liquid crystal display panel 14 is pressed on the first film assembly 13 through the fifth colloid 45, and the second liquid crystal display panel 24 is pressed on the second film assembly 23 through the sixth colloid 46, so that the first liquid crystal display panel 14 and the second liquid crystal display panel 24 can be supported and fixed in the Z direction.
In a specific embodiment, as shown in fig. 1-5, wherein the supporting structure 31 on the lower side of the back plate 30 in the embodiment shown in fig. 4-5 is zigzag folded (i.e., a first structure), the upper fixing structure 32, the left fixing structure 33 and the right fixing structure 34 on the upper side, the left side and the right side of the back plate 30 are all double-folded elongated structures (i.e., a second structure).
The left and right fixed structures 33 and 34 are second structures, respectively; that is, the two-folded elongated structure, the left fixing structure 33 includes a fourth extending portion 331 formed by extending the left edge of the back plate 30 outwards, a second connecting portion 332 formed by bending the edge of the fourth extending portion 331 upwards, a second bending portion 333 formed by bending the edge of the second connecting portion 332 outwards, and a fourth vertical portion 334 formed by extending the edge of the second bending portion 333 downwards.
The right fixing structure 34 includes a fifth extending portion 341 formed by extending the right side edge of the back plate 30 outwards, a third connecting portion 342 formed by bending the edge of the fifth extending portion 341 upwards, a third bending portion 343 formed by bending the edge of the third connecting portion 342 outwards, and a fifth vertical portion 344 formed by extending the edge of the third bending portion 343 downwards.
The first liquid crystal display panel 14 is fixed to the first film 13 through the seventh glue 47, and the seventh glue 47 extends outward and is adhered to the outer side of the fourth vertical portion 334 of the left fixing structure 33; the second lcd panel 24 is adhered and fixed to the second film 23 by the eighth colloid 48, and the eighth colloid 48 extends outward and is adhered to the outer side of the fourth vertical portion 334 of the left fixing structure 33.
The first liquid crystal display panel 14 is fixed to the first film 13 through the ninth glue 49, and the ninth glue 49 extends outwards and is adhered to the outer side of the fifth vertical portion 344 of the right fixing structure 34; the second lcd panel 24 is fixed to the second film 23 by the tenth glue 410, and the tenth glue 410 extends outward and is adhered to the outside of the fifth vertical portion 344 of the right fixing structure 34. Wherein the lengths of the fourth and fifth upright portions 334 and 344 are substantially equal to the distance between the first and second film assemblies 13 and 23.
This embodiment is achieved by providing the left 33 and right 34 fastening structures as a double-folded elongated structure, the left and right sides of the liquid crystal display panels and the film material assemblies of the two liquid crystal display devices are respectively adhered with the fourth vertical part 334 of the left fixing structure 33 and the fifth vertical part 344 of the right fixing structure 34 through the glue body, so that the liquid crystal display panels and the film material assemblies are symmetrically fixed, the left fixing structure 33 and the right fixing structure 34 can fix the colloid adhered between the liquid crystal display panel and the film material component, while further fixing the first liquid crystal display panel 14, the first film member 13 and the second liquid crystal display panel 24, the second film member 23, in addition, the first liquid crystal display panel 14 and the second liquid crystal display panel 24 are pressed against the first film member 13 and the second film member 23 by glue, so that the first liquid crystal display panel 14 and the second liquid crystal display panel 24 can be supported and fixed in the Z direction.
In a specific embodiment, as shown in fig. 1 to 9, the left fixing structure 33 and the right fixing structure 34 of the back plate 30 are respectively a third structure, i.e. a Z-shaped structure, and the third structure includes at least one first fixing portion and at least one second fixing portion which are alternately arranged. In one example, as shown in fig. 6-7, the Z-shaped structure includes a first anchor portion and a second anchor portion. In another example, as shown in fig. 8-9, the Z-shaped structure includes a plurality of first anchors and a plurality of second anchors.
The first fixing portion of the left fixing structure 33 includes a first elongated portion 335 formed by extending the left side edge of the back plate 30 outwards, a sixth vertical portion 336 formed by bending the first elongated portion 335 edge upwards, and a first outward extending portion 337 formed by bending the sixth vertical portion 336 edge outwards; the second fixing portion of the left fixing structure 33 includes a second elongated portion 338 formed by extending the left side edge of the back plate 30 outward, a seventh vertical portion 339 formed by bending the edge of the second elongated portion 338 downward, and a second extending portion 3310 formed by bending the edge of the seventh vertical portion 339 outward.
The first fixing portion of the right fixing structure 34 includes a third elongated portion 345 formed by extending the right side edge of the back plate 30 outward, an eighth vertical portion 346 formed by bending the third elongated portion 345 upward, and a third outward extending portion 347 formed by bending the eighth vertical portion 346 outward; the second fixing portion of the right fixing structure 34 includes a fourth elongated portion 348 formed by extending the right edge of the back plate 30 outwards, a ninth upright portion 349 formed by bending the fourth elongated portion 348 downwards, and a fourth extended portion 3410 formed by bending the ninth upright portion 349 outwards.
The first liquid crystal display panel 14 is adhesively fixed to the first extension portion 337 of the left fixing structure 33 through the eleventh colloid 411, and is adhesively fixed to the third extension portion 347 of the right fixing structure 34 through the twelfth colloid 412; the second lcd panel 24 is adhesively fixed to the second extension portion 3310 of the left fixing structure 33 through the thirteenth colloid 413, and is adhesively fixed to the fourth extension portion 3410 of the right fixing structure 34 through the fourteenth colloid 414.
In this embodiment, by setting the second fixing structure 33 and the third fixing structure 34 as the third structure, the left and right sides of the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24, and the second film material assembly 23 of the first liquid crystal display device 10 and the second liquid crystal display device 20 are respectively bonded to the extending portions of the second fixing structure 33 and the third fixing structure 34 by the adhesive, thereby supporting and fixing the first liquid crystal display panel 14 and the second liquid crystal display panel 24 in the Z direction.
In a specific embodiment, the first colloid to the thirteenth colloid are fixing tapes. In addition, it needs to be explained that the back plate can also be applied to a liquid crystal display device only by the help of a rubber frame and a frame to fix a liquid crystal display panel, the whole thickness and the weight of the liquid crystal display device are reduced, meanwhile, the expansion gap between the light guide plate and the film material assembly can be effectively increased, the size requirement of an ultra-narrow frame is met, the design requirement of a user on the size specification (thin thickness, light weight and narrow frame) of the liquid crystal display device is met, and the experience feeling of the user is improved.
The support structure 31 on the lower side of the back plate 30 in the embodiment shown in fig. 4-5 is a zigzag folded edge (i.e., a first structure), and the upper fixing structure 32, the left fixing structure 33 and the right fixing structure 34 on the upper side, the left side and the right side of the back plate 30 are all double-folded-edge elongated structures (i.e., a second structure). The first side-in backlight 11 and the second side-in backlight 21 are light bars with a flip-chip structure.
The first supporting portion 311 of the supporting structure 31 fixes the first liquid crystal display panel 14 and the first lateral entrance type backlight 11, and the top surface of the back plate 30 supports and fixes the first lateral entrance type backlight 11 and the first light guide plate 12; the second supporting portion 312 fixes the second lcd panel 24 and the second lateral backlight 21 of the second lcd device 20 from the lower side, and the back of the back plate 30 supports and fixes the second lateral backlight 21 and the second light guide plate 22, so as to ensure that the positions of the first lcd panel 14, the first lateral backlight 11, the second lcd panel 24, and the second lateral backlight 21 are fixed, prevent displacement, and ensure the reliability of the dual-screen lcd device.
In addition, the upper fixing structures 32, the left fixing structures 33 and the right fixing structures 34 on the upper side, the left side and the right side of the back plate 30 are double-folded extension structures, the upper sides, the left sides and the right sides of the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24 and the second film material assembly 23 of the first liquid crystal display device 10 and the second liquid crystal display device 20 are respectively bonded with the vertical parts of the upper fixing structures 32, the left fixing structures 33 and the right fixing structures 34 of the back plate 30 through glue, so as to ensure that the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24 and the second film material assembly 23 are symmetrically fixed, the glue bonded between the liquid crystal display panel and the film material assembly can be positioned and fixed, the liquid crystal display panel and the film material assembly are further fixed, in addition, the first liquid crystal display panel 14 and the second liquid crystal display panel 24 are respectively pressed on the first film material assembly 13 and the second film material assembly 23 through the glue, so that the first liquid crystal display panel 14 and the second liquid crystal display panel 24 can be supported and fixed in the Z direction.
The support structure 31 on the lower side of the back plate 30 in the embodiment shown in fig. 6-7 is a saw-toothed fold (i.e., a first configuration) and the upper securing structure 32 on the upper side of the back plate 30 is a double-folded elongate configuration (i.e., a second configuration). The left fixing structure 33 on the left side of the back plate 30 and the right fixing structure 34 on the right side of the back plate are both Z-shaped structures (i.e., third structures) including a first fixing part and a second fixing part which are symmetrically arranged; the support structure 31 on the lower side of the back plate 30 in the embodiment shown in fig. 8-9 is a zigzag folded edge (i.e., a first structure), and the upper fixing structure 32 on the upper side of the back plate 30 is a double folded edge elongated structure (i.e., a second structure). The left fixing structure 33 on the left side and the right fixing structure 34 on the right side of the back plate 30 are both Z-shaped structures (i.e., third structures) including a plurality of first fixing portions and a plurality of second fixing portions. The first side-in backlight 11 and the second side-in backlight 21 are light bars with a flip-chip structure.
The supporting structure 31 under the back plate 30 fixes the first liquid crystal display panel 14 and the first lateral type backlight 11 and the second liquid crystal display panel 24 and the second lateral type backlight 21 through the first supporting portion 311 and the second supporting portion 312, so as to ensure that the positions of the first liquid crystal display panel 14, the first lateral type backlight 11, the second liquid crystal display panel 24, and the second lateral type backlight 21 are fixed, prevent displacement, and ensure the reliability of the dual-screen liquid crystal display device.
The upper fixing structure 32 on the upper side of the back plate 30 is a double-folded elongated structure, and the upper sides of the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24, and the second film material assembly 23 of the first liquid crystal display device 10 and the second liquid crystal display device 20 are respectively bonded to the vertical part of the upper fixing structure 33 by using a glue, so that the glue bonded between the liquid crystal display panel and the film material assembly can be positioned and fixed, while further fixing the first liquid crystal display panel 14, the first film member 13 and the second liquid crystal display panel 24, the second film member 23, and the first liquid crystal display panel 14 and the second liquid crystal display panel 24 are respectively pressed on the first film member 13 and the second film member 23 by the sealant, so that the first liquid crystal display panel 14 and the second liquid crystal display panel 24 can be supported and fixed in the Z direction.
Furthermore, the left fixing structure 33 and the right fixing structure 34 on the left side and the right side of the back plate 30 are both Z-shaped structures, and the left side and the right side of the first liquid crystal display panel 14, the first film material assembly 13, the second liquid crystal display panel 24, and the second film material assembly 23 of the two liquid crystal display devices are respectively bonded with the extending portions of the left fixing structure 33 and the right fixing structure 34 through glue, so that the first liquid crystal display panel 14 and the second liquid crystal display panel 24 are supported and fixed in the Z direction.
It should be understood that the above-mentioned examples are given for the purpose of illustrating the present application clearly and not for the purpose of limiting the same, and that various other modifications and variations of the present invention may be made by those skilled in the art in light of the above teachings, and it is not intended to be exhaustive or to limit the invention to the precise form disclosed.
Claims (10)
1. A back plate for a dual-screen liquid crystal display device including a first liquid crystal display device and a second liquid crystal display device, the back plate comprising opposite first and second sides and opposite third and fourth sides, wherein a first side edge of the back plate is formed with a support structure for supporting the first and second liquid crystal display devices, a second side edge of the back plate is formed with a first fixing structure for fixing the first and second liquid crystal display devices, a third side edge of the back plate is formed with a second fixing structure for fixing the first and second liquid crystal display devices, and a fourth side edge of the back plate is formed with a third fixing structure for fixing the first and second liquid crystal display devices.
2. The back plate according to claim 1, wherein the support structure is a first structure including a plurality of first support portions and a plurality of second support portions alternately arranged, the first support portions include first extension portions formed by extending the first side edges of the back plate outward and first vertical portions formed by bending the first extension portion edges upward, and the second support portions include second extension portions formed by extending the first side edges of the back plate outward and second vertical portions formed by bending the second extension portion edges downward.
3. The back plate according to claim 1, wherein the first fixing structure is a second structure, and the second structure comprises an extending portion formed by extending the side edge of the back plate outwards, a connecting portion formed by bending the edge of the extending portion upwards, a bending portion formed by bending the edge of the connecting portion outwards, and a vertical portion formed by extending the edge of the bending portion downwards.
4. The back plate of claim 1, wherein the second and third securing structures are each a second structure; the second structure comprises an extending part formed by extending the side edge of the back plate outwards, a connecting part formed by bending the edge of the extending part upwards, a bending part formed by bending the edge of the connecting part outwards and a vertical part formed by extending the edge of the bending part downwards.
5. The back plate of claim 1, wherein the second and third securing structures are each a third structure; the third structure is including at least one first fixed part and at least one second fixed part that set up in turn, first fixed part include by the side of backplate is along the extension that outwards extends the formation, by the vertical portion that the extension border upwards bending type formed, by the extension that the outside bending type formed is followed to the vertical portion, the second fixed part include by the side of backplate is along the extension that outwards extends the formation, by the vertical portion that the extension border downwards bending type formed, by the extension that the outside bending type formed is followed to the vertical portion.
6. A double-screen liquid crystal display device comprises a first liquid crystal display device and a second liquid crystal display device, wherein the first liquid crystal display device comprises a first side-in type backlight source, a first light guide plate, a first film material component and a first liquid crystal display panel; the dual-screen liquid crystal display device is characterized by further comprising a back plate, wherein the back plate comprises a first side and a second side which are opposite to each other, a third side and a fourth side which are opposite to each other, a supporting structure for supporting the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the first side of the back plate, a first fixing structure for fixing the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the second side of the back plate, a second fixing structure for fixing the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the third side of the back plate, and a third fixing structure for fixing the first liquid crystal display device and the second liquid crystal display device is formed at the edge of the fourth side of the back plate.
7. The dual-screen liquid crystal display device of claim 6,
the supporting structure is a first structure and comprises a plurality of first supporting parts and a plurality of second supporting parts which are alternately arranged, and each first supporting part comprises a first extending part formed by outwards extending the first side edge of the back plate and a first vertical part formed by upwards bending the first extending part edge; the second support part comprises a second extending part formed by extending the first side edge of the back plate outwards and a second vertical part formed by bending the edge of the second extending part downwards;
the first liquid crystal display panel is fixedly bonded to the first lateral entrance type backlight source through a first colloid, and the first lateral entrance type backlight source is fixedly bonded to the first light guide plate through a second colloid; the second liquid crystal display panel is fixedly bonded through a third colloid to the second side-in type backlight source, and the second side-in type backlight source is fixedly bonded through a fourth colloid to the second light guide plate.
8. The dual-screen liquid crystal display device of claim 6,
the first fixing structure is a second structure, and the second structure comprises an extending part formed by extending the side edge of the back plate outwards, a connecting part formed by bending the edge of the extending part upwards, a bending part formed by bending the edge of the connecting part outwards and a vertical part formed by extending the edge of the bending part downwards;
the first liquid crystal display panel is fixedly bonded to the first membrane material through a fifth adhesive body, and the fifth adhesive body extends outwards and is bonded to the outer side of the vertical part of the first fixing structure; the second liquid crystal display panel is fixedly bonded to the second membrane material through a sixth colloid, and the sixth colloid extends outwards and is bonded to the outer side of the vertical portion of the first fixing structure.
9. The dual-screen liquid crystal display device of claim 6,
the second fixing structure and the third fixing structure are respectively a second structure; the second structure comprises an extending part formed by extending the side edge of the back plate outwards, a connecting part formed by bending the edge of the extending part upwards, a bending part formed by bending the edge of the connecting part outwards and a vertical part formed by extending the edge of the bending part downwards,
the first liquid crystal display panel is fixedly bonded to the first membrane material through a seventh colloid, and the seventh colloid extends outwards and is bonded to the outer side of the vertical part of the second fixing structure; the second liquid crystal display panel is fixedly bonded to the second film material through an eighth colloid, and the eighth colloid extends outwards and is bonded to the outer side of the vertical part of the second fixing structure;
the first liquid crystal display panel is fixedly bonded to the first membrane material through a ninth adhesive body, and the ninth adhesive body extends outwards and is bonded to the outer side of the vertical part of the third fixing structure; the second liquid crystal display panel is fixedly bonded to the second film material through a tenth glue body, and the tenth glue body extends outwards and is bonded to the outer side of the vertical portion of the third fixing structure.
10. The dual-screen liquid crystal display device of claim 6,
the second fixing structure and the third fixing structure are respectively a third structure; the third structure comprises at least one first fixing part and at least one second fixing part which are alternately arranged, the first fixing part comprises an extension part formed by extending the side edge of the back plate outwards, a vertical part formed by bending the edge of the extension part upwards and an extension part formed by bending the edge of the vertical part outwards, the second fixing part comprises an extension part formed by extending the side edge of the back plate outwards, a vertical part formed by bending the edge of the extension part downwards and an extension part formed by bending the edge of the vertical part outwards,
the first liquid crystal display panel is fixedly bonded to the extension part of the second fixing structure through an eleventh glue body and is fixedly bonded to the extension part of the third fixing structure through a twelfth glue body; the second liquid crystal display panel is fixedly bonded to the extension portion of the second fixing structure through a thirteenth colloid, and is fixedly bonded to the extension portion of the third fixing structure through a fourteenth colloid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021947763.4U CN212647211U (en) | 2020-09-08 | 2020-09-08 | Back plate and double-screen liquid crystal display device comprising same |
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| CN202021947763.4U CN212647211U (en) | 2020-09-08 | 2020-09-08 | Back plate and double-screen liquid crystal display device comprising same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219692A (en) * | 2021-03-25 | 2021-08-06 | 武汉华星光电技术有限公司 | Display module and display system |
| WO2021258925A1 (en) * | 2020-06-23 | 2021-12-30 | 京东方科技集团股份有限公司 | Backplane, backlight module, and display device |
| WO2022227141A1 (en) * | 2021-04-28 | 2022-11-03 | 武汉华星光电技术有限公司 | Vehicle-mounted display panel and vehicle device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258925A1 (en) * | 2020-06-23 | 2021-12-30 | 京东方科技集团股份有限公司 | Backplane, backlight module, and display device |
| CN113219692A (en) * | 2021-03-25 | 2021-08-06 | 武汉华星光电技术有限公司 | Display module and display system |
| WO2022198708A1 (en) * | 2021-03-25 | 2022-09-29 | 武汉华星光电技术有限公司 | Display module and display system |
| US20230146381A1 (en) * | 2021-03-25 | 2023-05-11 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display module and display system |
| US11906886B2 (en) * | 2021-03-25 | 2024-02-20 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display module and display system |
| WO2022227141A1 (en) * | 2021-04-28 | 2022-11-03 | 武汉华星光电技术有限公司 | Vehicle-mounted display panel and vehicle device |
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