CN108181758A - Shading double-sided tape and display device - Google Patents
Shading double-sided tape and display device Download PDFInfo
- Publication number
- CN108181758A CN108181758A CN201810005360.9A CN201810005360A CN108181758A CN 108181758 A CN108181758 A CN 108181758A CN 201810005360 A CN201810005360 A CN 201810005360A CN 108181758 A CN108181758 A CN 108181758A
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- Prior art keywords
- protrusion
- display device
- adhesive tape
- double faced
- faced adhesive
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- 239000000758 substrate Substances 0.000 claims abstract description 89
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002390 adhesive tape Substances 0.000 claims description 87
- 239000012528 membrane Substances 0.000 claims description 34
- 239000011521 glass Substances 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012790 adhesive layer Substances 0.000 abstract 7
- 239000010410 layer Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a shading double-sided tape and a display device. The shading double-sided tape comprises a bottom part and a convex part; the bottom comprises a first substrate layer, a first adhesive layer and a second adhesive layer, and the first adhesive layer and the second adhesive layer are respectively attached to two opposite surfaces of the first substrate layer; the convex part comprises a third adhesive layer, and the third adhesive layer is arranged on one side of the second adhesive layer, which is far away from the first base material layer; the width of the bottom is greater than the width of the convex. According to the technical scheme provided by the invention, the effective attaching area of the shading double-sided tape can be increased in the attaching process, so that the problems of light leakage, water inflow and dust inflow are reduced to the greatest extent.
Description
Technical field
The present invention relates to shading double faced adhesive tape technical field and display technology field more particularly to a kind of shading double faced adhesive tapes
And display device.
Background technology
Existing consumer display product is in order to realize the protection to display screen module or reach good human-computer interaction body
It tests, it will usually which in the light-emitting surface of display screen module, glass cover-plate or touch screen are set.Display screen module generally includes polarisation
Piece, down polaroid, color membrane substrates, array substrate and the liquid crystal layer being arranged between color membrane substrates and array substrate.For reality
Existing display screen film group and glass cover-plate or touch screen are bonded and prevent the product caused by light leakage and into dirt water inlet
Can be bad, it is bonded usually using shading double faced adhesive tape.When display screen frame is larger, shading double faced adhesive tape would generally be bonded
In upper polaroid, adhesion strength is big and is less prone to light leakage and intakes into dirt problem.
With constantly narrowing for display product frame, the size, material and performance of shading double faced adhesive tape also proposed more
High requirement.After display screen frame narrows, the width that shading double faced adhesive tape is overlapped with upper polaroid can also narrow so that shading
Adhesion strength between double faced adhesive tape and upper polaroid is insufficient.In addition to this, due to the influence of assembly precision, further such that shading
Double faced adhesive tape cannot be bonded effectively with upper polaroid, and light is caused to be leaked out from side；And upper polaroid and glass cover-plate or tactile
It touches between screen generally there are certain gap, dust, steam in air can be entered in display device, so as to further influence
User experience.
Invention content
In order to solve the above technical problems, the present invention provides a kind of shading double faced adhesive tape and display device, to increase display
Shield effective area of attachment between module and touch screen or glass cover-plate, and then prevent dust, the water in light leakage and air
Vapour enters in display device, promotes user experience.
On the one hand, the present invention provides a kind of shading double faced adhesive tape, including：
Bottom and protrusion；
Bottom includes the first base material layer, the first glue-line and the second glue-line, and the first glue-line and the second glue-line are fitted in the respectively
Two opposite surfaces of one substrate layer；
Protrusion includes third glue-line, and third glue-line is arranged on side of second glue-line far from the first base material layer；
The width of bottom is d1, and the width of protrusion is d2, d1>d2.
On the other hand, the present invention also provides a kind of display device, including：
The display screen module and counter substrate that are oppositely arranged and any one shading double faced adhesive tape provided by the invention,
Shading double faced adhesive tape is arranged between display screen module and counter substrate；
Display screen module includes viewing area and the non-display area around viewing area；
Shading double faced adhesive tape is fitted in the non-display area of display screen module, and side of the bottom far from protrusion is fitted in opposed
On substrate, side of the protrusion far from bottom is fitted in display screen module.
Compared with prior art, shading double faced adhesive tape of the invention and display device, realize following advantageous effect：
The shading double faced adhesive tape and display device of the present invention, by the way that shading double faced adhesive tape is set as bottom and protrusion two
Point, bottom width is more than protrusion width, so as to increase effective area of attachment between display screen module and counter substrate so that hides
Adhesion strength increase between light double faced adhesive tape and display screen module, while prevent dust, steam in light leakage and air from entering
In display device, user experience is promoted.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of schematic cross-section for display device that the prior art provides；
Fig. 2 is the schematic cross-section for another display device that the prior art provides；
Fig. 3 is a kind of schematic cross-section of shading double faced adhesive tape provided in an embodiment of the present invention；
Fig. 4 is a kind of shading double faced adhesive tape fitting side view provided in an embodiment of the present invention；
Fig. 5 is the schematic cross-section of another shading double faced adhesive tape provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic cross-section of display device provided in an embodiment of the present invention；
Fig. 7 is the floor map of another display device provided in an embodiment of the present invention；
Fig. 8 is the schematic cross-section of another display device provided in an embodiment of the present invention；
Fig. 9 is the close-up schematic view in Fig. 8 of the present invention；
Figure 10 is the schematic cross-section of another display device provided in an embodiment of the present invention；
Figure 11 is the schematic cross-section of another display device provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
It should be noted that detail is elaborated in the following description in order to fully understand the present invention.But this hair
Bright to be implemented with a variety of different from other manner described here, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case of culvert.Therefore the present invention is not limited by following public specific embodiment.
The present invention relates to a kind of shading double faced adhesive tape and display device, Fig. 1 is a kind of display device that the prior art provides
Schematic cross-section.Display device 001 includes the display screen module 50 being oppositely arranged and counter substrate 30 and backlight module
60；Display screen module 50 includes upper polaroid 511, down polaroid 512, color membrane substrates 521, array substrate 522 and is arranged on
Liquid crystal layer (Fig. 1 is not shown) between color membrane substrates 521 and array substrate 522, while display screen module 50 can be divided into viewing area
10 and the non-display area 20 around viewing area 10, backlight module 60 generally comprise backboard, reflector plate, light guide plate and brightening piece etc..
Backlight module 60 is bonded with display screen module 50 by optical cement (Fig. 1 is not shown) realization.The backboard of part display device can be set
The barricade (Fig. 1 is not shown) that oriented display screen module 50 is bent, when frame reserved space is larger, shading double faced adhesive tape 40 has
A part is fitted on the barricade of backboard.Since upper polaroid 511 has certain thickness and color membrane substrates are not completely covered
521, so during attaching, 40 side of shading double faced adhesive tape is fitted in counter substrate 30, and opposite side is fitted in polarisation
On the barricade of piece 511 and backboard.As shown in Figure 1, the rim area of display device is wider, reserved fit area is also larger, can be with
The wider shading double faced adhesive tape of selection is bonded, and the effective area attached at this time is big, and cohesive force is strong, can effectively prevent light leakage
And it intakes into dirt.But wider rim area can reduce the screen accounting of display device, influence visual effect.Therefore, increasingly
More products starts to develop towards the direction for reducing frame, promotion screen accounting.
Fig. 2 is the schematic cross-section for another display device that the prior art provides, unlike Fig. 1, display device
002 rim area is relatively narrow, and frame, which narrows, can further improve the screen accounting of product, promotes user experience.But due to display
The frame of device 002 is relatively narrow, for fitting counter substrate 30 and display screen module 50 shading double faced adhesive tape 40 it is effective
It attaches width also therewith to narrow so that its adhesion strength is insufficient.Illustratively, Fig. 2 provides the shading of 002 opposite sides of display device
The fitting situation of double faced adhesive tape 40.Due to before shading double faced adhesive tape 40 is bonded, it will usually according to the display device 002 it is opposite
The distance of the shading double faced adhesive tape 40 of both sides and it is first fitted in counter substrate 30, carried out again with display screen module 50 later
Fitting.The problem of during fitting due to aligning accuracy and assembling tolerance, under partial picture, it may appear that side (Fig. 2 using right side as
Example) shading double faced adhesive tape 40 can not be attached with upper polaroid 511, as shown in Fig. 2, shading double faced adhesive tape 40 and upper polaroid
511st, between color membrane substrates 521 there are gap, it is susceptible to light leakage and into dirt into water problems.It is if by force that shading is two-sided at this time
Adhesive tape 40 is bonded with the color membrane substrates 521 of display screen module 50, and it will cause counter substrates 30 to tilt, can not be with display screen module
Keeping parallelism between 50 so as to influence the service life of light path and product, and then influences user experience.
In the present invention, inventor by shading double faced adhesive tape by being set as bottom and protrusion two parts, while bottom width
More than protrusion width, so as to using the two-part different-thickness of shading double faced adhesive tape, compensate due to the thickness of upper polaroid with
The difference in height formed between color membrane substrates increases the area and adhesion strength effectively attached, so as to reduce light leakage and intake into dirt
Risk, promoted user experience.
With reference to figure 3, Fig. 3 is a kind of schematic cross-section of shading double faced adhesive tape provided in an embodiment of the present invention.Shading is two-sided
Adhesive tape 40 includes bottom 41 and protrusion 42；Bottom 41 includes the first base material layer 401, the first glue-line 411 and the second glue-line 412, the
One glue-line 411 and the second glue-line 412 are fitted in two opposite surfaces of the first base material layer 401 respectively；Protrusion 42 includes third glue
Layer 423, third glue-line 423 is arranged on the second side of the glue-line 412 far from the first base material layer 401；The width of bottom 41 is d1, convex
The width in portion 42 is d2, d1 ＞ d2.
It should be noted that bottom 41 in the width direction can be not concordant with both sides with protrusion 42, can also side it is concordant.
Illustratively, shading double faced adhesive tape 40 shown in Fig. 3, bottom 41 and protrusion 42 are upper in the width direction to realize that right side is concordant.
Shading double faced adhesive tape 40 provided in this embodiment, it is real by the way that bottom 41 and protrusion 42 are set as different width
Existing shading double faced adhesive tape 40 has differences on integral thickness, i.e., section in the width direction is stepped.Fig. 4 is of the invention real
A kind of shading double faced adhesive tape fitting side view of example offer is provided, with reference to Fig. 3 and Fig. 4, is deposited when needing the different objects surface of bonding
In height or during thickness segment difference, such as the object 82 in Fig. 4 close to the surface of object 81 there are during height segment difference, the thickness of protrusion 42
Degree can just fill up the height segment difference on 82 surface of object, so that the first glue-line 411 of bottom 41 is fitted in object completely
On 81, the second glue-line 412 is not fitted in by the part that protrusion 42 covers on object 82.In other words, screening provided in this embodiment
Light double faced adhesive tape 40 can increase adhesion strength, make adherency more firm while effective area of attachment is kept to make full use of；And
And compared with the uniform double faced adhesive tape of the thickness of only bottom 41, will not additionally increase between object 81 and object 82 it is opposite away from
From so as to avoid increasing the thickness of product in process of production.Further, since shading double faced adhesive tape provided in this embodiment is simultaneously
With shaded effect, therefore leakage problem can be further solved, so as to bring better experience for user.
Optionally, the protrusion 42 of shading double faced adhesive tape 40 can also include second substrate layer 402, as shown in figure 5, figure
5 be the schematic cross-section of another shading double faced adhesive tape provided in an embodiment of the present invention.Unlike Fig. 3, protrusion 42 is also wrapped
The second substrate layer 402 is included, third glue-line 423 is fitted in the side of the second substrate layer 402, and the second glue-line 412 is fitted in the second base
Side of the material layer 402 far from third glue-line 423.
Shading double faced adhesive tape 40 provided in this embodiment increases the second substrate layer 402, the second substrate layer in protrusion 42
402 other than it can provide certain mechanical strength, can also provide certain physical thickness.Therefore, it is provided in this embodiment
Shading double faced adhesive tape can select the substrate layer for being suitble to thickness and intensity according to actual needs, so as to obtain different-thickness and
The shading double faced adhesive tape of intensity, makes its performance more preferably, and use scope is wider, meets more user demands.
Optionally, the bottom 41 of shading double faced adhesive tape 40 and protrusion 42 in the width direction on side it is concordant.Continuing with ginseng
Examine Fig. 3 and Fig. 5, on section in the width direction, bottom 41 and width 42 exist for Fig. 3 and shading double faced adhesive tape 40 shown in Fig. 5
Realize concordant in right side.It is of course also possible to realize that concordantly in actual use, there is no essential distinctions in left side.Bottom 41 and convex
Portion 42 in the width direction on side it is concordant, can make shading double faced adhesive tape side formed an even curface, reduce system
Technology difficulty when standby；Simultaneously for the shading double faced adhesive tape not concordant compared to both sides, side can concordantly make bottom and
The difference of protrusion on the width concentrates on opposite side, and that side that width differential is concentrated is fitted in the presence of height or thickness section
On the material surface of difference, the existing part of segment difference can be given to reserve enough buffer distances on the width, so as to increase as far as possible
Effective area of attachment of shading double faced adhesive tape, ensures enough adhesion strengths.
Further, the present invention also provides a kind of display device, as shown in fig. 6, Fig. 6 is provided in an embodiment of the present invention
A kind of schematic cross-section of display device.Display device 003 includes：The display screen module 50 and counter substrate 30 being oppositely arranged,
And any shading double faced adhesive tape 40 in above-described embodiment, shading double faced adhesive tape 40 are arranged on display screen module 50 and opposed base
Between plate 30；Display screen module 50 includes viewing area 10 and non-display area 20；Shading double faced adhesive tape 40 is fitted in display screen module
In 50 non-display area 20, side of the bottom 41 far from protrusion 42 is fitted in counter substrate 30, and protrusion 42 is far from bottom 41
Side is fitted in display screen module 50.
It is worth noting that, it is only carried out for the side far from viewing area 10 is concordant by bottom 41 and protrusion 42 in Fig. 6
Explanation.Display device 003 provided in this embodiment can will be shown in the case of narrow frame by shading double faced adhesive tape 40
Screen module 50 and counter substrate 30 fit together in non-display area 20, and stepped segment difference formed by bottom 41 and protrusion 42 can
The difference in height between the different diaphragms in display screen module 50 is compensated, so that shading double faced adhesive tape 40 can be preferably bonded
Between counter substrate 30 and display screen module 50, increase effective area of attachment, increase adherence；Meanwhile effective fitting, it can
Lead to light leakage or situation about intaking into dirt due to gap occurs in bonding position to avoid display screen module 50 and counter substrate 30
Occur.
Optionally, with continued reference to Fig. 6, counter substrate 30 can be glass cover-plate.In order to avoid such as grey during use
Influence of the use environments such as dirt steam to display effect sets glass cover-plate in the light emission side of display screen module 50, can improve
Dust-proof, the water resistance of electronic product, while improve exterior aesthetics.
It is understood that counter substrate 30 can also be touch screen.In order to reach better man-machine interaction experience, show
Product often carries touch screen.Touch screen is set in the light emission side of display screen module 50, forms external hanging type touch screen, while can be
Dummy keyboard is constructed on screen, so as to which display product be made to save physical keyboard.
Optionally, as shown in fig. 7, Fig. 7 is the floor map of another display device provided in an embodiment of the present invention.It needs
It is noted that for the clearer facilities for illustrating shading double faced adhesive tape 40, Fig. 7 is to schematically show device 004 close
The structure of shading double faced adhesive tape 40 is shown while one side surface of observer.Shading double faced adhesive tape 40 is around 10 head and the tail of viewing area
Connect to forming ring shape binding frame.Ring shape binding frame provided in this embodiment in use, can be by display screen module and right
It puts substrate to be completely bonded in the non-display area 20 around viewing area 10 one week, by the inner space of display device 004 and outside
Portion is environmentally isolated, so as to avoid light leakage to the full extent, intake into the appearance of dirt problem.
Fig. 8 is please referred to, Fig. 8 is the schematic cross-section of another display device provided in an embodiment of the present invention.Display device
In 005, display screen module 50 includes the color membrane substrates 521 being oppositely arranged and array substrate 522；Color membrane substrates 521 are far from array
The side of substrate 522 is provided with upper polaroid 511, and side of the array substrate 522 far from color membrane substrates 521 is provided with down polaroid
512, liquid crystal layer is provided between color membrane substrates 521 and array substrate 522 (Fig. 8 is not shown)；Upper polaroid 511 is in color membrane substrates
The orthographic projection of 521 place planes is located in color membrane substrates 521.Fig. 9 is the close-up schematic view in Fig. 8 of the present invention, i.e. in Fig. 8
The enlarged drawing of dashed region A.As shown in figure 9, the thickness of bottom 41 is h1, the thickness of protrusion 42 is h2, the thickness of upper polaroid 511
It spends for h3, h1+h2 >=h3.With continued reference to Fig. 8, side of the protrusion 42 far from bottom 41 is fitted on color membrane substrates 521；Protrusion 42
It is not overlapped with orthographic projection of the upper polaroid 511 in 521 place plane of color membrane substrates, bottom 41 and upper polaroid 511 are in color film base
The orthographic projection of 521 place plane of plate is not overlapped.
It should be noted that the present embodiment still with bottom 41 and protrusion 42 in the side far from viewing area 10 concordant and protrusion
42 thickness h 2 illustrates for being more than the thickness h 3 of upper polaroid 511.It is understood that in actual product, bottom
The value range of 41 width d1 can be 1-5mm, and the value range of thickness h 1 can be 0.08-0.25mm；The width of protrusion 42
The value range for spending d2 can be 0.3-0.5mm, and the value range of thickness h 2 can be 0.12-0.25mm.By the way that shading is double
The sum of the thickness h 1 of the bottom 41 of face adhesive tape 40 and the thickness h 2 of protrusion 42 are more than or equal to the thickness h 3 of upper polarisation, can cause pair
It puts between substrate 30 and the upper polaroid 511 of display screen module 50 that there are certain spaces, that is to say and utilize shading double faced adhesive tape
40 raise counter substrate 30.If counter substrate 30 is touch screen, touch screen deforms upon under the action of user's touch control operation
When, there is certain cushion space to avoid being in direct contact for counter substrate 30 and upper polaroid 511, avoid pressure touch signal
Delay, improve the pressure touch sensitivity of display device.
In addition to this, for narrow frame display device, the bottom 41 and protrusion of shading double faced adhesive tape 40 provided by the invention
42 on the width there are difference, and when the fitting of display screen module 50 and counter substrate 30 is there are during deviation, stair-stepping shading is double
The protrusion 42 of face adhesive tape 40 still can be pasted on color membrane substrates 521, so as to avoid shading double faced adhesive tape 40 and display screen mould
There are gap between group 50, and then avoid the occurrence of light leakage or happening into dirt of intaking.
Optionally, display device can also be set as the structure shown in Figure 10, and Figure 10 is provided in an embodiment of the present invention
The schematic cross-section of another display device.With reference to Figure 10 and Fig. 9, in display device 006, h2=h3, protrusion 42 is far from bottom
41 side is fitted on color membrane substrates 521, and bottom 41 is fitted in close to the side of protrusion 42 in upper polaroid 511；Protrusion 42
It is not overlapped with orthographic projection of the upper polaroid 511 in 521 place plane of color membrane substrates, bottom 41 and upper polaroid 511 are in color film base
The orthographic projection of 521 place plane of plate partly overlaps.
Display device 006 provided in this embodiment, since the thickness h 2 of the protrusion 42 of shading double faced adhesive tape 40 is inclined equal to upper
The thickness h 3 of mating plate 511, so ensuring that protrusion 42 is bonded with color membrane substrates 521 and bottom 41 is bonded with counter substrate 30
Afterwards, bottom 41 still has part that can be fitted in upper polaroid 511 close to the side of protrusion 42.In other words, protrusion is being utilized
After 42 thickness h 2 just fills the segment difference generated due to the thickness h 3 of upper polaroid 511, shading double faced adhesive tape 40 still has part
It can simultaneously fit in upper polaroid 511, i.e., bottom 41 and upper polaroid 511 are in the positive throwing of 521 place plane of color membrane substrates
The part of shadow overlapping can fit together.This kind of set-up mode can as far as possible increase while height segment difference is made up
Shading double faced adhesive tape 40 efficiently uses area；And compared with Fig. 8, it will not additionally increase counter substrate 30 and display screen module
Relative distance between 50 so as to increase the integral thickness of display device, is conducive to display device and is sent out toward thinner direction
Exhibition.In addition to this, upper polaroid 511 has certain gap with protrusion 42 on the direction of color membrane substrates 521 is parallel to, and works as patch
When a little bias occurs in conjunction, the presence in the gap can play cushioning effect to a certain extent, avoid protrusion 42 close to color film
The side of substrate 521 is fitted in upper polaroid 511.
Optionally, display device can also be set as the structure shown in Figure 11, and Figure 11 is provided in an embodiment of the present invention
The schematic cross-section of another display device.Compared with the display device 006 in Figure 10, in display device 007, protrusion 42 is close
The side of upper polaroid 511 is bonded with upper polaroid 511 close to the side of protrusion 42.
Display device 007 provided in this embodiment, since the thickness h 2 of the protrusion 42 of shading double faced adhesive tape 40 is inclined equal to upper
The thickness h 3 of mating plate 511, and protrusion 42 is pasted close to the side of upper polaroid 511 and upper polaroid 511 close to the side of protrusion 42
It being combined, i.e. the right side of upper polaroid 511 and the left side of protrusion 42 fits together, so during fitting, it is upper inclined
Mating plate 511 just fills up the notch that bottom 41 occurs with protrusion 42 due to width differential.In other words, stairstepping shading double faced adhesive tape
The 40 height segment differences that can occur with effective compensation with color membrane substrates 521 when the thickness of upper polaroid 511.This kind of set-up mode,
Effective area of attachment of bottom 41 and protrusion 42 can be made to reach maximum, so as to reduce to the full extent during fitting
Light leakage, water inlet and into dirt problem.
It should be noted that any one shading double faced adhesive tape provided by the invention, can pass through following two methods
In any one preparation.Method one：Attached last layer without base material adhesive tape or has base material again on existing shading double faced adhesive tape
One-faced tapes need to only ensure that there are differences on the width for the two.Method two：First by two layers of existing shading double faced adhesive tape into
Row fitting, washes away part adhesive tape, so as to form the shading double faced adhesive tape provided in the present invention using mold later.
In conclusion shading double faced adhesive tape provided in an embodiment of the present invention and display device, it, can compared to the prior art
When there is fitting deviation in narrow frame display device, the height with color membrane substrates that effective compensation occurs due to the thickness of upper polaroid
Segment difference is spent, so as to which during fitting, the effective area of attachment for increasing shading double faced adhesive tape is big, reduces leakage to the full extent
Light, water inlet and into dirt problem.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (12)
1. a kind of shading double faced adhesive tape, which is characterized in that the shading double faced adhesive tape includes bottom and protrusion；
The bottom includes the first base material layer, the first glue-line and the second glue-line, first glue-line and second glue-line difference
It is fitted in two opposite surface of the first base material layer；
The protrusion includes third glue-line, and the third glue-line is arranged on one of second glue-line far from the first base material layer
Side；
The width of the bottom is d1, and the width of the protrusion is d2, d1>d2.
2. shading double faced adhesive tape according to claim 1, which is characterized in that the protrusion further includes the second substrate layer, institute
The side that third glue-line is fitted in second substrate layer is stated, second glue-line is fitted in second substrate layer far from described
The side of third glue-line.
3. shading double faced adhesive tape according to claim 1, which is characterized in that the bottom and the protrusion are in the width direction
On side it is concordant.
4. a kind of display device, which is characterized in that the display device includes：The display screen module being oppositely arranged and opposed base
Plate and claim 1-3 any one of them shading double faced adhesive tapes, the shading double faced adhesive tape are arranged on the display screen mould
Between group and the counter substrate；
The display screen module includes viewing area and the non-display area around the viewing area；
The shading double faced adhesive tape is fitted in the non-display area of the display screen module, and the bottom is far from the protrusion
Side be fitted in the counter substrate, side of the protrusion far from the bottom is fitted in the display screen module.
5. display device according to claim 4, which is characterized in that the counter substrate is glass cover-plate.
6. display device according to claim 4, which is characterized in that the counter substrate is touch screen.
7. display device according to claim 4, which is characterized in that the shading double faced adhesive tape is first around the viewing area
Tail connects to forming ring shape binding frame.
8. display device according to claim 4, which is characterized in that the display screen module includes the color film being oppositely arranged
Substrate and array substrate；
Side of the color membrane substrates far from the array substrate is provided with upper polaroid, and the array substrate is far from the color film
The side of substrate is provided with down polaroid, and liquid crystal layer is provided between the color membrane substrates and the array substrate；
The upper polaroid is located in the orthographic projection of plane where the color membrane substrates in the color membrane substrates.
9. display device according to claim 8, which is characterized in that the thickness of the bottom be h1, the thickness of the protrusion
It spends for h2, the thickness of the upper polaroid is h3, h1+h2 >=h3.
10. display device according to claim 9, which is characterized in that side fitting of the protrusion far from the bottom
On the color membrane substrates；
The orthographic projection of the protrusion and the upper polaroid plane where the color membrane substrates is not overlapped, the bottom and described
The orthographic projection of upper polaroid plane where the color membrane substrates is not overlapped.
11. display device according to claim 9, which is characterized in that h2=h3, the protrusion far from the bottom one
Side is fitted on the color membrane substrates, and the bottom is fitted in close to the side of the protrusion in the upper polaroid；
The orthographic projection of the protrusion and the upper polaroid plane where the color membrane substrates is not overlapped, the bottom and described
Upper polaroid orthographic projection of plane where the color membrane substrates partly overlaps.
12. display device according to claim 11, which is characterized in that the protrusion is close to the side of the upper polaroid
It is bonded with the upper polaroid close to the side of the protrusion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005360.9A CN108181758B (en) | 2018-01-03 | 2018-01-03 | Shading double-sided tape and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005360.9A CN108181758B (en) | 2018-01-03 | 2018-01-03 | Shading double-sided tape and display device |
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| Publication Number | Publication Date |
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| CN108181758A true CN108181758A (en) | 2018-06-19 |
| CN108181758B CN108181758B (en) | 2020-11-20 |
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| CN201810005360.9A Active CN108181758B (en) | 2018-01-03 | 2018-01-03 | Shading double-sided tape and display device |
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