CN205594256U - Liquid crystal display module and electronic scale - Google Patents

Abstract

The utility model discloses a liquid crystal display module and electronic scale, this liquid crystal display module include main part frame, mainboard, a plurality of LCD panel and a plurality of piece in a poor light, the LCD panel with on chip locating in a poor light the main part frame, mainboard fixed connection in main part frame one side, the LCD panel pass through zebra strip with mainboard connection, the mainboard is equipped with the drive the LCD panel shows the subassembly of data. The utility model discloses technical scheme can obtain a low cost and be convenient for the integral type liquid crystal display module of maintenance installation.

Description

Liquid crystal display module and electronic scale

Technical field

This utility model relates to electronic scale technical field, particularly to a kind of liquid crystal display module and application institute State the electronic scale of liquid crystal display module.

Background technology

Along with the fast development of microelectric technique, compared to traditional mechanical scale, electronic scale has weighing speed Hurry up, weighing precision is high, accuracy of reading and can automatically calculate the advantages such as the amount of money, has been widely used in each In emporium.

For showing that the display module of weighing results, unit price and the amount of money is the important component part of electronic scale, It generally includes mainboard, display panel, LCD panel, backlight, and display panel is located in display driving.Tradition mould When formula produces the liquid crystal display module of electronic scale, it usually needs LCD panel is welded by stitch and display panel Connect, and backlight is welded on display panel, carried out even by winding displacement between last display panel and mainboard Connect.Traditional structural models has following deficiency: first, and the LCD panel cost ratio of band stitch is without pin The cost of foot is high, if there being damage, also inconvenience is taken out and changed；Secondly, display panel area is relatively big, and cost is relatively High；Furthermore, backlight is sometimes for there being frame of plastic to assemble, then welds with display panel, because backlight is Strip, power pins is positioned at its one end, fixes without plastics, will necessarily occur in making purposes Situation about tilting, causes showing bad, and process cost, cost of labor and material cost are high；Finally, aobvious Showing that also needing to winding displacement between plate and mainboard is attached, material cost is the highest.

In sum, traditional liquid crystal display module production cost is higher, and structure is not concentrated and inconvenience maintenance.

Utility model content

Main purpose of the present utility model is to provide a kind of liquid crystal display module, it is intended to obtain a kind of low cost And it is easy to the integral type liquid crystal indicator of maintenance.

For achieving the above object, the utility model proposes a kind of liquid crystal display module, including body frame, master Plate, multiple LCD panel and multiple backlight, described LCD panel and described backlight are installed in described body frame, Described mainboard is fixedly connected on described body frame side, and described LCD panel is by zebra bar with described mainboard even Connecing, described mainboard is provided with the assembly driving described LCD panel video data

Preferably, described body frame includes first surface and the second surface vertical with described first surface, Described mainboard is fixedly connected on described second surface, and described first surface offers and described LCD panel and institute Stating multiple slots that backlight matches, each described LCD panel and described backlight are inserted in each described Slot.

Preferably, each described backlight fits in described LCD panel one surface, and described LCD panel is with described Backlight overlap is inserted in described slot, and described backlight is between described LCD panel and described mainboard.

Preferably, described slot deviates from the cell wall of described mainboard and is provided with the groove matched with described LCD panel, Described LCD panel is fastened in described groove after being inserted in described slot.

Preferably, described backlight includes power pins, and described backlight is affixed by described power pins In described mainboard.

Preferably, described LCD panel side is provided with wire connecting portion, the corresponding described wire connecting portion of described second surface Position is provided with installing hole, and the two ends of described zebra bar are connected to described wire connecting portion respectively through described installing hole With described mainboard.

Preferably, described second surface is provided with multiple fixing holes of fixing described mainboard, described mainboard and institute Stating body frame uses screw to connect.

Preferably, described second surface offers multiple hollow hole.

Preferably, described body frame is provided with for fixing connection end, and described connection end is in described second table Extend towards outside.

Another object of the present utility model is to propose a kind of electronic scale, it is characterised in that include housing and Being installed on the liquid crystal display module of described housing, described liquid crystal display module is above-mentioned liquid crystal display module.

Mainboard is fixed with multiple LCD panels and backlight by technical solutions of the utility model by a body frame In one, compact conformation, mainboard is provided with and drives LCD panel to carry out the assembly shown, i.e. shows that driving sets In mainboard, eliminate display panel, simultaneously without using winding displacement to be connected with mainboard by display panel, save Display panel and the material cost of winding displacement itself, also save manual assembly cost；Multiple LCD panels and backlight Sheet is fixed on body frame, eliminates the frame of plastic used when backlight is welded with display panel, assembles Facilitate and reduce cost.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain according to the structure shown in these accompanying drawings Obtain other accompanying drawing.

Fig. 1 is the mounting structure front view of this utility model liquid crystal display module one embodiment；

Fig. 2 is the section B-B figure of liquid crystal display module in Fig. 1；

Fig. 3 is the structure for amplifying schematic diagram of A in Fig. 2；

Fig. 4 is the D-D sectional view of liquid crystal display module in Fig. 1；

Fig. 5 is the perspective view of body frame one embodiment in this utility model liquid crystal display module；

Fig. 6 is the rearview of Fig. 5 body frame；

Fig. 7 is the left view of Fig. 5 body frame.

Drawing reference numeral illustrates:

Label	Title	Label	Title
				100	Body frame	140	Liquid crystal window
110	First surface	200	Mainboard
				111	Slot	300	LCD panel
112	Groove	310	Wire connecting portion
				120	Second surface	400	Backlight
121	Installing hole	410	Power pins
				122	Fixing hole	500	Housing
123	Hollow hole	600	Zebra bar
				130	Connect end

The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings into One step explanation.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment Scheme is clearly and completely described, it is clear that described embodiment is only of the present utility model one Section Example rather than whole embodiments.Based on the embodiment in this utility model, this area is general The every other embodiment that logical technical staff is obtained under not making creative work premise, broadly falls into The scope of this utility model protection.

It is to be appreciated that directional instruction in this utility model embodiment (such as upper and lower, left and right, It is forward and backward ...) it is only used for explanation phase under a certain particular pose (as shown in drawings) between each parts To position relationship, motion conditions etc., if this particular pose changes, then directionality indicates also Change the most therewith.

In this utility model, unless otherwise clearly defined and limited, term " connect ", " fixing " Etc. should be interpreted broadly, such as, " fixing " can be fixing connection, it is also possible to is to removably connect, Or it is integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to It is indirectly connected to by intermediary, can be connection or the interaction of two elements of two element internals Relation, unless otherwise clear and definite restriction.For the ordinary skill in the art, can be according to tool Body situation understands above-mentioned term concrete meaning in this utility model.

It addition, such as relating to the description of " first ", " second " etc. is only used for describing in this utility model Purpose, and it is not intended that instruction or imply its relative importance or implicit indicate that indicated technology is special The quantity levied.Thus, define " first ", the feature of " second " can be expressed or impliedly wrap Include at least one this feature.It addition, the technical scheme between each embodiment can be combined with each other, but Must be based on those of ordinary skill in the art are capable of, when the combination of technical scheme occurs mutually Contradiction will be understood that when maybe cannot realize that the combination of this technical scheme does not exists, the most not at this utility model Within the protection domain required.

The utility model proposes a kind of liquid crystal display module, this liquid crystal display module is applied to electronic scale.

Regard referring to figs. 1 through the mounting structure master that Fig. 7, Fig. 1 are this utility model liquid crystal display module one embodiment Figure；Fig. 2 is the section B-B figure of liquid crystal display module in Fig. 1；Fig. 3 is the structure for amplifying schematic diagram of A in Fig. 2； Fig. 4 is the D-D sectional view of liquid crystal display module in Fig. 1；Fig. 5 is main in this utility model liquid crystal display module The perspective view of body frame one embodiment；Fig. 6 is the rearview of Fig. 5 body frame；Fig. 7 is Fig. 5 main body The left view of frame.

Refer to Fig. 1 and Fig. 2, the liquid crystal display module of this utility model one embodiment, including body frame 100, mainboard 200, multiple LCD panel 300 and multiple backlight 400, LCD panel 300 and backlight 400 Being installed in body frame 100, mainboard 200 is fixedly connected on body frame 100 side, and LCD panel 300 passes through speckle Horse bar 600 is connected with mainboard 200, and mainboard 200 is provided with and drives the assembly of LCD panel 300 video data (not Diagram).

In the present embodiment, liquid crystal display module is mainly used in commercial electronic-weighing system, and this electronic scale also includes weighing Platform (not shown), sensor (not shown) and housing 500.In the present embodiment, body frame 100 Being provided with for fixing connection end 130, liquid crystal display module is connected and fixed on housing by connecting end 130 500.Commercial electronic-weighing system the most all can have a display of weight, unit price and the amount of money, therefore, in the present embodiment, LCD panel 300 and backlight 400 are respectively provided with three, and backlight 400 is for providing uniformly for liquid crystal display module Light source, generally include light emitting diode and diffusion sheet etc..LCD panel 300 is the display of electronic scale, can To present the display signal identified by people that mainboard 200 is driven.Each LCD panel 300 passes through respectively Respective zebra bar 600 is connected with mainboard 200.Zebra bar 600 is a kind of electrically conductive flexible glue, generally Insulation silica gel and electric silica gel alternately laminated after cure molding, the type of zebra bar 600 generally has one side to foam Bar, two-sided foamed strip, transparent sandwich bar and printed form etc..Mainboard 200 can be pcb board, on pcb board Through surface mount or plug-in unit mode integrated circuit and electronic device, primary electron device includes microcontroller list Unit (MCU) and modulus conversion chip.The mainboard 200 of the present embodiment is provided with driving LCD panel 300 and shows number According to assembly, this assembly for display drive, this display drive surface mount mode can be used to be installed in mainboard 200.Thing of weighing is put in weighing platform, and the sensor being connected with weighing platform receives pressure signal and passes Transporting to mainboard 200, modulus conversion chip receives the most weak pressure input signals from sensor, is directly changed into Serial digital signal exports, and micro-control unit (MCU) is given these serial digital signals through process Display drives, and display drives passes to LCD panel 300 display signal, and LCD panel 300 shows effective content again Illustrate.

This utility model passes through a body frame 100 by mainboard 200 and multiple LCD panels 300 and backlight 400 It is fixed on one, compact conformation.The assembly driving LCD panel 300 video data is installed on mainboard 200, I.e. show driving, it is not necessary to additionally re-use display panel, simultaneously without using winding displacement by display panel and mainboard 200 connect, and have saved display panel and the material cost of winding displacement itself, have also saved manual assembly cost.Many Individual LCD panel 300 is fixed on body frame 100 with backlight 400, eliminates fixing backlight 400 time institute The frame of plastic used, easy to assembly and reduce cost.Zebra bar 600 is used for connecting mainboard 200 and liquid crystal Sheet 300, the use of zebra bar 600, eliminate the LCD panel 300 of band stitch, and low price, save Cost；Simultaneously stable because of zebra bar 600 electric conductivity, it is easy to realize between mainboard 200 and LCD panel 300 Signal connect.

Specifically, incorporated by reference to reference to Fig. 2 to Fig. 4, body frame 100 include first surface 110 and with the first table The second surface 120 that face 100 is vertical, mainboard 200 is fixedly connected on second surface 120, and first surface 110 is opened It is provided with the multiple slots 111 matched with LCD panel 300 and backlight 400, each LCD panel 300 and backlight Sheet 400 is inserted in each slot 111.

Certainly, the connected mode of LCD panel 300 and backlight 400 and body frame 100 can also be buckle Connection, threaded or other fixed forms.Body frame 100 can be integrated injection mo(u)lding, this production Technique is more ripe, beneficially batch machining..As a rule, LCD panel 300 with backlight 400 can be Tabular, is inserted in LCD panel 300 and backlight 400 in slot 111, and the opening shape of slot 111 should Match with LCD panel 300 and backlight 400, in the present embodiment, refer to Fig. 5 and Fig. 7, slot The opening shape of 111 is rectangle.LCD panel 300 and backlight 400 are equipped with three, the most accordingly, in The spaced apart length being provided with three slots 111, the length direction of slot 111 and mainboard 200 of first surface 110 Degree direction is vertical, then the length direction of three groups of LCD panels 300 and backlight 400 is perpendicular to mainboard 200 Length direction, then LCD panel 300 is arranged with minimum splicing area parallel with backlight 400, with joint Save the use material of mainboard 200.LCD panel 300 is inserted in slot 111 with backlight 400 and carries out Fixing, this simple in construction is convenient, when damaging occurs in LCD panel 300, it is simple to repair demolition and assembling.

Concrete, referring to Fig. 2 to Fig. 4, each backlight 400 fits in LCD panel 300 1 surface, LCD panel 300 be inserted in slot 111 overlapping with backlight 400, backlight 400 be positioned at LCD panel 300 with Between mainboard 200.

Often LCD panel 300 is overlapping with backlight 400 is inserted in each slot 111 for group, by each of slot 111 The abutting of cell wall, is conducive to each table simultaneously fixing backlight 400 and LCD panel 300 away from slot 111 Face, compact conformation, to save space, reduces the materials of body frame 100 and mainboard 200.Additionally, refer to Fig. 6, body frame 100 surface relative with second surface 120 offers liquid crystal window 140, this liquid crystal window 140 have reserved space for LCD panel 300 video data.Backlight 400 be positioned at LCD panel 300 and mainboard 200 it Between, the connection easily realizing backlight 400 and mainboard 200 is fixed, it is possible to make the number that LCD panel 300 shows It is believed that breath passes through liquid crystal window 140 and displays.

Further, refer to Fig. 2 and Fig. 3, slot 111 deviates from the cell wall of mainboard 200 and is provided with and LCD panel The groove 112 that 300 match, LCD panel 300 is fastened in groove 112 after being inserted in slot 111.

In the present embodiment, LCD panel 300 can be cuboid, and the bottom shape of groove 112 is rectangle, liquid crystal After sheet 300 is inserted in slot 111, the groove 112 offered can make LCD panel 300 be fastened in slot securely 111, prevent LCD panel 300 from detaching in slot 111 opening part, beneficially fixative wafer 300 is towards slot The surface of 111, makes LCD panel 310 be fixed on body frame 100, this simple in construction, it is not necessary to use additional consolidating Locking member, it is simple to detachable maintaining.

Further, incorporated by reference to refering to Fig. 2 and Fig. 3, backlight 400 includes power pins 410, backlight Sheet 400 is fixed in mainboard 200 by power pins 410.

Power pins 410 is two stitch of the light emitting diode being positioned in backlight 400, and this power supply draws Foot 410 one end is positioned at the backlight 400 side near slot 111 opening, and the other end is in slot 111 opening Bend towards mainboard 200 side and be welded in mainboard 200, it is achieved mainboard 200 is conductively connected with backlight 400, Power pins 410 is welded in mainboard 200 simultaneously, can fix the backlight 400 surface towards slot 111, Coordinating the cell wall of slot 111, backlight 400 is firmly fixed at slot 111, the backlight 400 fixed Also playing the effect pressing solidly LCD panel 300, the cell wall of fit 112, LCD panel 300 is also simultaneously It is firmly fixed at groove 112.Ask compared to the fixed installation of backlight in prior art 400 with display panel Topic, this installation fixative wafer 300 and the simple in construction of backlight 400, be fixed on backlight 400 Near the side of mainboard 200 source of welding current pin 410, more convenient fixing backlight 400.

Refer to Fig. 4 and Fig. 5, LCD panel 300 side is provided with wire connecting portion 310, and second surface 120 is corresponding The position of wire connecting portion 310 is provided with installing hole 121, and the two ends of zebra bar 600 are supported respectively through installing hole 121 It is connected to wire connecting portion 310 and mainboard 200.

In the present embodiment, as shown in Figure 4, three LCD panels 300 there are two wire connecting portion arranged 310 Position is identical, is positioned at the LCD panel 300 homonymy towards mainboard 200 one side, the wire connecting portion 310 in another group Being located at the opposite side that face as hereinbefore is relative, this structure is so that be connected to the speckle of wire connecting portion 310 Horse bar 600 is more concentrated so that the usable floor area of mainboard 200 reduces the most relatively, has saved mainboard 200 Material cost.

Mainboard 200 is compressed zebra bar 600 and can complete the connection of LCD panel 300 and mainboard 200, save Having gone welding sequence and cost of labor, compressing of LCD panel 300 is also played admittedly by zebra bar 600 simultaneously Determine the effect of LCD panel 300.Easy installation and removal, when damaging occurs in LCD panel 300, it is only necessary to will Zebra bar 600 and backlight 400 disassemble, it is simple to keep in repair and change LCD panel 300.

Specifically, refer to Fig. 5, second surface 120 is provided with multiple fixing holes 122 of fixing mainboard 200, Mainboard 200 uses screw to be connected with body frame 100.

Certainly, the connected mode of mainboard 200 and body frame 100 can also for snapping connection, pin is connected Or other modes.In the present embodiment, offering four fixing holes 122 in second surface 120, four solid Determine hole 122 and be relatively arranged on center deflection slot 111 opening part of second surface 120 two-by-two, will Mainboard 200 is connected by screw the second surface 120 in body frame 100, and attachment structure can be made more steady Gu.Mainboard 200 is fixed on second surface 120 is partial to one side of slot 111, convenient and backlight 400 Connection.

Specifically, continuing referring to Fig. 5, second surface 120 offers multiple hollow hole 123.

The shape of hollow hole 123 can be rectangle, square, circular or other shapes, in the present embodiment, Multiple hollow holes 123 rectangular (surrounding is chamfering), are arranged and along mainboard in second surface 120 interval 200 directions are uniformly distributed.Multiple hollow holes 123 mainly include two kinds of specifications, the hollow out of the first specification Hole 123 has three, and its length direction is parallel with the length direction of LCD panel 300 and backlight 400, the The hollow hole 123 of two kinds of specifications has six, and its length direction is perpendicular to LCD panel 300 and backlight 400 Length direction, and be symmetrically distributed in the both sides of hollow hole 123 length direction of the first specification.Second Multiple hollow hole 123 is offered on surface 120, on the one hand can save the material of body frame 100 and to alleviate it heavy Amount, on the other hand, hollow hole 123 can be that the plug-in unit device offer of mainboard 200 plugs space.

Another object of the present utility model is to propose a kind of electronic scale (not shown), the liquid of this electronic scale Brilliant display module is above-mentioned liquid crystal display module, and liquid crystal display module is connected to shell by connecting end 130 Body 500, this connection end 130 extends laterally along four round angles of the second surface 120 of body frame 100, Connect end 130 and can offer screwed hole, be connected with housing 500 by securing member；This connection end 130 is also Can be buckle, offer at housing 500 and be connected the hole clipping that end 130 matches, both be for snapping connection； Certainly connecting end 130 can also be for the parts can being attached with housing 500 of other forms.Due to electricity The liquid crystal display module of sub-scale have employed whole technical schemes of above-mentioned all embodiments, the most at least has All beneficial effects that the technical scheme of above-described embodiment is brought, this is no longer going to repeat them.

The foregoing is only preferred embodiment of the present utility model, not thereby limit of the present utility model specially Profit scope, every under inventive concept of the present utility model, in utilizing this utility model description and accompanying drawing The equivalent structure transformation of Rong Suozuo, or directly/be indirectly used in other relevant technical fields and be included in this In the scope of patent protection of utility model.

Claims (10)

1. a liquid crystal display module, it is characterised in that include body frame, mainboard, multiple LCD panel and Multiple backlight, described LCD panel and described backlight are installed in described body frame, and described mainboard is fixing even Being connected to described body frame side, described LCD panel is connected with described mainboard by zebra bar, and described mainboard sets There is the assembly driving described LCD panel video data.

2. liquid crystal display module as claimed in claim 1, it is characterised in that described body frame includes the One surface and the second surface vertical with described first surface, described mainboard is fixedly connected on described second table Face, described first surface offers the multiple slots matched with described LCD panel and described backlight, often Individual described LCD panel and described backlight are inserted in each described slot.

3. liquid crystal display module as claimed in claim 2, it is characterised in that each described backlight is pasted Together in described LCD panel one surface, described LCD panel is overlapping with described backlight is inserted in described slot, institute State backlight between described LCD panel and described mainboard.

4. liquid crystal display module as claimed in claim 3, it is characterised in that described slot deviates from described The cell wall of mainboard is provided with the groove matched with described LCD panel, after described LCD panel is inserted in described slot It is fastened in described groove.

5. the liquid crystal display module as described in Claims 1-4 is arbitrary, it is characterised in that described backlight Sheet includes that power pins, described backlight are fixed in described mainboard by described power pins.

6. the liquid crystal display module as described in claim 2 to 4 is arbitrary, it is characterised in that described liquid crystal Sheet side is provided with wire connecting portion, and the position of the corresponding described wire connecting portion of described second surface is provided with installing hole, described The two ends of zebra bar are connected to described wire connecting portion and described mainboard respectively through described installing hole.

7. liquid crystal display module as claimed in claim 2, it is characterised in that described second surface is provided with Multiple fixing holes of fixing described mainboard, described mainboard uses screw to be connected with described body frame.

8. liquid crystal display module as claimed in claim 7, it is characterised in that described second surface is offered There is multiple hollow hole.

9. liquid crystal display module as claimed in claim 8, it is characterised in that described body frame is provided with use In fixing connection end, described connection end extends laterally in described second surface.

10. an electronic scale, it is characterised in that include housing and be installed on the liquid crystal display module of housing, Described liquid crystal display module is the arbitrary described liquid crystal display module of claim 1 to 9.