CN208000435U

CN208000435U - A kind of display module

Info

Publication number: CN208000435U
Application number: CN201820591418.8U
Authority: CN
Inventors: 周福新; 赖春桃; 林文峰
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2018-04-24
Filing date: 2018-04-24
Publication date: 2018-10-23
Anticipated expiration: 2028-04-24

Abstract

The utility model discloses a kind of display modules, it includes backlight module, foam tape and LCD modules, the upper surface of the foam tape is coated with weak adhesive glue, the lower surface of the foam tape is coated with strong adhesive glue, the LCD modules are bonded with the upper surface of the foam tape, and the backlight module is bonded with the lower surface of the foam tape.Foam tape in display module provided by the utility model can not only play buffering and dust-proof effect, due also to the upper surface of foam tape is coated with weak adhesive glue, it can prevent the upper surface of foam tape from causing to pull to the down polaroid in LCD modules and avoid MURA, and then prevent down polaroid from deforming;The foam tape number of plies is less simultaneously, can prevent foam tape from falling off, and then prevent LCD modules from falling off.

Description

A kind of display module

Technical field

The utility model is related to a kind of display technology fields, more specifically to a kind of display module.

Background technology

Traditional display module generally includes LCD modules and backlight module, is bonded among it by foam tape, and foam is not Cushioning effect can be only played during installation and use, can also play dust-proof effect.But traditional foam tape Usually use foam as base material, foam upper and lower surface respectively pastes the identical double faced adhesive tape of one layer of viscosity, since two-sided adhesivity is stronger, and Double faced adhesive tape is easy tod produce in temperature change to expand with heat and contract with cold, so being easy to cause to pull to the down polaroid in LCD modules to cause MURA can lead to down polaroid deformation even damage down polaroid, and since the number of plies be excessive, also be easy to happen and fall off when serious Phenomenon causes LCD modules to fall off.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of display module, foam tape can not only play Buffering and dust-proof effect can prevent foam tape due also to the upper surface of foam tape is coated with weak adhesive glue Upper surface causes to pull to the down polaroid in LCD modules avoids MURA, and then prevents down polaroid from deforming;Foam tape simultaneously The number of plies is less, can prevent foam tape from falling off, and then prevents LCD modules from falling off.

Technical problem to be solved in the utility model is achieved by the following technical programs:

In order to solve the above technical problems, the utility model provides a kind of display module comprising backlight module, foam rubber The upper surface of band and LCD modules, the foam tape is coated with weak adhesive glue, and the lower surface of the foam tape is coated with by force Adhesive glue, the LCD modules are bonded with the upper surface of the foam tape, under the backlight module and the foam tape Surface is bonded.

Further, the lower surface of the foam tape is additionally provided with PET base material layer, and the strong adhesive glue is set to described The lower surface of PET base material layer.

Further, the initial bonding strength ratio of the strong adhesive glue and the weak adhesive glue is 2:1 to 50:1.

Further, the LCD modules include the down polaroid for being sequentially overlapped setting from down to up, lower substrate, upper substrate And upper polaroid.

Further, the backlight module includes lower frame and is sequentially overlapped the reflector plate being set on the lower frame, leaded light Plate and optical film group.

The utility model has the advantages that:Foam tape in display module provided by the utility model not only may be used To play buffering and dust-proof effect foam can be prevented due also to the upper surface of foam tape is coated with weak adhesive glue The upper surface of adhesive tape causes to pull to the down polaroid in LCD modules avoids MURA, and then prevents down polaroid from deforming;It steeps simultaneously The celloidin band number of plies is less, can prevent foam tape from falling off, and then prevent LCD modules from falling off.

The lower surface of foam tape is additionally provided with PET base material layer, and strong adhesive glue is set to the lower surface of PET base material layer, due to Equipped with PET base material layer as identifying, fool proof can be played the role of.

Description of the drawings

Fig. 1 is a kind of display module structural schematic diagram provided by the utility model.

Fig. 2 is foam tape structural schematic diagram in Fig. 1.

Fig. 3 is the improved structure schematic diagram of foam tape in Fig. 2.

Fig. 4 is another display module structural schematic diagram provided by the utility model.

Fig. 5 is the improved structure schematic diagram of double-sided adhesive in Fig. 4.

Fig. 6 is another display module structural schematic diagram provided by the utility model.

Fig. 7 is the improved structure schematic diagram of elastomer block in Fig. 6.

Fig. 8 is another improved structure schematic diagram of elastomer block in Fig. 7.

Specific implementation mode

The utility model is described in detail with reference to embodiment, embodiment is only the preferred reality of the utility model Mode is applied, is not the restriction to the utility model.

It please refers to Fig.1 and Fig. 2, is a kind of display module provided by the utility model comprising backlight module 100, foam The upper surface of adhesive tape 1 and LCD modules 200, the foam tape 1 is coated with weak adhesive glue 2, the following table of the foam tape 1 Face is coated with strong adhesive glue 3, and the LCD modules 200 are bonded with the upper surface of the foam tape 1, the backlight module 100 It is bonded with the lower surface of the foam tape 1.Foam tape 1 in display module provided by the utility model can not only play Buffering and dust-proof effect can prevent foam tape 1 due also to the upper surface of foam tape 1 is coated with weak adhesive glue 2 Upper surface the down polaroid in LCD modules 200 caused to pull avoid MURA, and then prevent down polaroid from deforming;It steeps simultaneously 1 number of plies of celloidin band is less, can prevent foam tape 1 from falling off, and then prevents LCD modules 200 from falling off.

Further, the LCD modules 200 include the down polaroid for being sequentially overlapped setting from down to up, lower substrate, upper base Plate and upper polaroid.

Referring to Fig. 3, further, the lower surface of the foam tape 1 is additionally provided with PET base material layer 4, the strong sticky glue Water 3 is set to the lower surface of the PET base material layer 4, due to being equipped with PET base material layer 4 as identification, can play the role of fool proof.

Further, the initial bonding strength ratio of the strong adhesive glue 3 and the weak adhesive glue 2 is 2:1 to 50:1, lead to Control glue viscous force is crossed to avoid to prevent the upper surface of foam tape 1 from causing to pull to the down polaroid in LCD modules 200 MURA, and then prevent down polaroid from deforming.

Further, first that different colours are also posted on the weak adhesive glue 2 and under the strong adhesive glue 3 is release Film and the second release film, can also play foolproof function.

Referring to Fig. 4, further, the backlight module 100 includes lower frame 5 and is sequentially overlapped and is set to the lower frame 5 On reflector plate, light guide plate 6 and optical film group 7, the lower frame 5 includes bottom plate 51 and the side wall that is upwardly extended by 51 edge of bottom plate 52。

Further, the side of 6 upper surface of the light guide plate is additionally provided with double-sided adhesive 8, and the lower surface of the double-sided adhesive 8 has Viscosity, stickup are fixed on the light guide plate 6, and at least one step 81,81 table of the step are formed on the double-sided adhesive 8 Mask toughness;The optical film group 7 is set on the double-sided adhesive 8, and the optical film group 7 includes at least one layer of optical diaphragm, The optical diaphragm is set on the step 81 of the double-sided adhesive 8, the quantity phase of the quantity of the step 81 and the optical diaphragm It is corresponding.The height of each step 81 is more than the height of every layer of optical diaphragm, and the optical film group 7 of the present embodiment is preferably It is sequentially overlapped the diffusion barrier, lower bright enhancement film and upper bright enhancement film of setting, the step 81 is preferably three, with diffusion barrier, lower increasing Light film and upper bright enhancement film are corresponding.Since 81 surface of step has viscosity, optical diaphragm can be made to be fixed on 81 surface of step; Double-sided adhesive 8 can be completed by being die cut factory, and assembling only need to be attached once, can improve production efficiency with automated job;It also avoids It is arranged on light guide plate 6 caused by step 81 and fail to stick optical diaphragm and leads to the problem of bright line;6 mold manufacturing of light guide plate is also more Simply, illumination effect is easier to handle;The smaller that double-sided adhesive 8 can be arranged at a distance from the visible area of display module.

Referring to Fig. 5, further, the double-sided adhesive 8 includes superimposed layer 82 and adhesive-layer 83, the formation of the superimposed layer 82 There are the step 81, the adhesive-layer 83 to be set on the step 81.Superimposed layer 82 can be made of multilayered structure different in size, To form the step 81, each layer of height of the multilayered structure can be designed according to the height of optical diaphragm, double to ensure The height in face viscous 8 and optical diaphragm it is highly consistent.

Further, the material of the superimposed layer 82 is preferably thin-film material, and more preferably, which is preferably PET.

Further, 6 upper surface of the light guide plate is equipped with boss, and the boss, can be into one for positioning the double-sided adhesive 8 Step promotes efficiency of assembling.

Referring to Fig. 6, further, the backlight module 100 further include be set to the light guide plate 6 and the side wall 52 it Between at least one elastomer block 9, being provided with the backlight module 100 of elastomer block 9 can make light guide plate 6 firmly be connected to elasticity On block 9, buffering light guide plate 6 to the impact force of lower frame 5, avoid light guide plate 6 in backlight module 100 and lower frame 5 collide and Sound is caused, while the service life of light guide plate 6 can also be improved.

Fig. 6 and Fig. 7 are please referred to, further, 9 both sides of the elastomer block are equipped at least one convex block 91, and convex block 91 is straight Abutting is connect to the side wall 52 of light guide plate 6 and lower frame 5, elastomer block 9 can be made to be directed at light guide plate 6 and side wall 52, further increased The cushion performance of elastomer block 9.

Further, with the increase of 9 usage time of elastomer block, elastomer block 9 also can make elasticity die down, be with aging Increase the ability of 9 buffering percussive force of elastomer block and increase the service life of elastomer block 9, the elastomer block 9 is in adjacent described convex Shock relieve vent 92 is equipped between block 91, in the present embodiment, which is square hole, when light guide plate 6 is toward hitting on 9 direction of elastomer block When hitting, elastomer block 9 can absorb the impact force of light guide plate 6, to further realize damping toward depressed deformation on 92 direction of shock relieve vent With the purpose for reducing noise.It should be noted that it can also be blind hole that the shock relieve vent 92, which can be through-hole, it can also be built-in Endoporus in 9 the inside of elastomer block, is not restricted herein, because falling within the scope of the present invention.The present embodiment What is selected is through-hole, and easily fabricated, production cost is low.The shape of the shock relieve vent 92 can be that square hole can also be circular hole, can It is selected according to actual conditions, is not restricted herein.

Fig. 6 and Fig. 8 are please referred to, in order to further increase the ability of 9 buffering percussive force of elastomer block, close to the convex block Fluted 93 are all provided on the inner wall of the shock relieve vent 92 of 91 sides, there are two the convex blocks 91 of the present embodiment, so groove 93 Also two are only set, multiple convex blocks 91 and multiple grooves 93 can be set according to actual conditions, set between the adjacent groove 93 There is damping device 94, can further increase the ability of 9 buffering percussive force of elastomer block using damping device 94, absorbs guide-lighting The impact force of plate 6, to further realize damping and reduce the purpose of noise.

Further, the damping device 94 be spring or two opposite magnet of homopolarity it is therein any one, utilize The elastic force of spring or the repulsion of the opposite magnet generation of two homopolarities further increase the energy of 9 buffering percussive force of elastomer block Power;Spring and magnet are all the standard merchandises being commercially available on the market, and without particularly customized, purchase cost is low, can be at any time It replaces, it is cost-effective.

In order to further reduce the sound for mutually hitting generation between each component, the elastomer block 9 and the leaded light The side wall 52 of plate 6 and the lower frame 5 is interference fitted, which is connected on light guide plate 6, another convex block 91 are connected on side wall 52, due to interference fit, may be regarded as an entirety, when automobile is in velocity variations, the backlight module 100 sound can minimize, and can prevent backlight module 100 completely and send out the sound, realize zero noise and weaken and shake.

Above example only expresses the embodiment of the utility model, the description thereof is more specific and detailed, but can not Therefore it is interpreted as the limitation to the utility model patent range, as long as the form using equivalent substitution or equivalent transformation is obtained Technical solution, shall fall within the scope of the present invention.

Claims

1. a kind of display module, which is characterized in that it includes backlight module, foam tape and LCD modules, the foam tape Upper surface is coated with weak adhesive glue, and the lower surface of the foam tape is coated with strong adhesive glue, the LCD modules with it is described The upper surface of foam tape is bonded, and the backlight module is bonded with the lower surface of the foam tape.

2. display module according to claim 1, which is characterized in that the lower surface of the foam tape is additionally provided with PET bases Material layer, the strong adhesive glue are set to the lower surface of the PET base material layer.

3. display module according to claim 1, which is characterized in that the strong adhesive glue and the weak adhesive glue Initial bonding strength ratio is 2:1 to 50:1.

4. display module according to claim 1, which is characterized in that the LCD modules include being sequentially overlapped from down to up Down polaroid, lower substrate, upper substrate and the upper polaroid of setting.

5. display module according to claim 1, which is characterized in that the backlight module includes that lower frame and being sequentially overlapped is set Reflector plate, light guide plate and the optical film group being placed on the lower frame.