The cover plate and display device of a kind of display device
Technical field
It the utility model is related to field of photoelectric technology, and in particular to the cover plate and display device of a kind of display device.
Background technology
At present, the display panel of display topmost has one layer of cover plate, and cover plate includes glass, and glass has positioned at middle part
Viewing area, and the fringe region positioned at viewing area periphery, and it is coated in the ink layer of the fringe region of glass.In display surface
, it is necessary to brush one layer of ink on the fringe region of the internal face of glass in advance in the manufacturing process of plate, then in viewing area and
OCA optical cement layers are applied on the inner surface of ink, are cemented in cover plate in display module by OCA optical cement layers.
With the continuous development of Display Technique, the thickness more and more thinner of display panel, this require cover plate and display screen it
Between OCA optical cement layers thickness more and more thinner.Due to the presence of ink layer so that at the viewing area of glass and fringe region
Ink segment difference be present, when OCA optical cements are fitted on viewing area and ink layer, can cause bubble in viewing area be present,
Influence display effect.When the thickness of OCA optical cement layers is thinner, the ability of its filling ink segment difference is weaker, is pasted in viewing area
Bubble fraction defective is closed also with regard to more and more higher.
Although a part of bubble in viewing area can be driven away by deaeration technology of pressurizeing, work as ambient pressure
After cancellation, the gas of discharge has certain rebound degree, still has bubble in viewing area, bad phenomenon still can go out again
It is existing.And in the prior art, by etching the height of inked areas on the cover board, then by ink to transfer, print, spray etc.
Mode fills and leads up the height in the region of etching, so that cover plate is a plane with the face that screen body is bonded entirely, though can solve ink
The air bubble problem that segment difference is brought, but the cost height required for whole inked areas is etched, to fill and lead up etching region using ink
The required precision of the highly desired technique in domain is high, is not easy to realize.
So how low cost and efficiently solve ink segment difference caused by air bubble problem, be present display panel system
Make needed for field and solve the problems, such as.
Utility model content
Therefore, technical problem to be solved in the utility model is display device cover plate in the prior art and display mould
During group fitting, it is impossible to solve the air bubble problem of ink segment difference institute band in high efficiency and low cost.
Therefore, the utility model provides a kind of cover plate of display device, including
Glass, there is the viewing area being located therein, and be molded over the fringe region of the viewing area edge;
At least one horizontal-extending air discharge duct from inside to outside is offered on the surface of the fringe region, the opening of the air discharge duct is leaned on
The nearly viewing area side simultaneously connects with the viewing area;
Ink layer, it is arranged on the fringe region, along the thickness direction of the cover plate, the thickness of the ink layer is small
In the height of the air discharge duct.
Preferably, the cover plate of above-mentioned display device, on from the viewing area towards the direction of the fringe region,
The opening bore of the air discharge duct is less than the width of the outside end wall surface of the air discharge duct.
It is further preferred that the cover plate of above-mentioned display device, it is trapezoidal recessed that the air discharge duct is that lateral cross section is shaped as
Groove.
Preferably, the cover plate of above-mentioned display device, the table of the viewing area and fringe region is coated in optical cement layer
After on face, gas is formed between the ink layer of the optical cement and insertion the exhaust trench bottom in the embedded air discharge duct
Body receiving cavity.
More preferably preferably, the cover plate of above-mentioned display device, the gas held cavity have not solid in the optical cement
Before change, connected with the viewing area and supply the first state that gas is flowed into it in the viewing area, and had
After optical cement layer solidification, the second state for isolating with the viewing area.
Preferably, the cover plate of above-mentioned display device, the air discharge duct be at least two, the air discharge duct at least about
Around described two side walls in viewing area.
Preferably, the cover plate of above-mentioned display device, the air discharge duct are at least four, and all air discharge ducts are equably
It is centered around around the viewing area.
Preferably, the cover plate of above-mentioned display device, the height of the air discharge duct are not less than 50um.
Display device provided by the utility model, including
The cover plate of display device described in any of the above-described;
Display module;
Optical cement layer, it is covered on the ink layer and is filled in the space where the viewing area, for by institute
Display module is stated to be fixedly connected with the cover plate level.
It is further preferred that above-mentioned display device, the optical cement layer is OCA optical cement layers.
Technical scheme provided by the utility model, has the following advantages that:
1. the cover plate of display device provided by the utility model, including glass and ink layer, wherein, glass has viewing area
Domain and the fringe region positioned at viewing area edge, ink layer set in edge region, opened on the surface of fringe region
Provided with least one horizontal-extending air discharge duct from inside to outside, the opening of air discharge duct is close to viewing area side and and viewing area
Connection;The thickness of ink layer is less than the height of air discharge duct.
The cover plate of this structure, because on the thickness direction of cover plate, the height of air discharge duct is more than the thickness of ink layer, will cover
When plate is bonded with display module, in part ink insertion air discharge duct, when optical cement layer is coated in the viewing area and marginal zone of glass
During domain, partial optical glue can be also embedded in air discharge duct;Before optical cement is uncured, the optical cement in viewing area is applied
Plus-pressure, because optical cement is before uncured, there is stickiness, when gas is extruded in air discharge duct in viewing area, gas
Know from experience and apply upward power to optical cement so that gap between optical cement layer and ink layer be present, gas is drained into the gap;
After optics adhesive curing, gas is isolated in air discharge duct so that gas is located in fringe region always, would not in viewing area
There is bubble to return again to, so as to solve air bubble problem caused by ink segment difference, it is ensured that the display effect of display device.In addition, by
Be the groove positioned at fringe region in air discharge duct, be equally coated with ink layer in air discharge duct, thus the ink layer in air discharge duct with
Gap between optical cement layer does not interfere with the display requirement of display device, it is not required that and ink layer fills and leads up air discharge duct, so as to
The technological requirement that ink is filled and led up is eliminated, cost is reduced, improves efficiency.
2. the cover plate of display device provided by the utility model, on the direction from viewing area towards fringe region, row
The opening bore of air drain is less than the width of the outside end wall surface of air discharge duct.
When optical cement layer on to viewing area applies pressure deaeration, because the opening of air discharge duct is close to viewing area one
Side, the optical cement that small-bore opening can prevent or reduce in viewing area are flowed into air discharge duct by this opening,
The opening for avoiding air discharge duct is blocked, so that viewing area and air discharge duct are in connected state, the gas in viewing area
Body can be entered in air discharge duct, realize deaeration function;Meanwhile the small gas for being also prevented from having been introduced into air discharge duct of bore that is open
Body is reversely flowed in viewing area again so that is stored in air discharge duct, is further assured that into the gas in air discharge duct
There is no gas residue in viewing area.
3. the cover plate of display device provided by the utility model, the viewing area and fringe region are coated in optical cement layer
Surface on after, the optical cement in the embedded air discharge duct and shape between the ink layer of the embedded exhaust trench bottom
Into gas held cavity, gas held cavity increases viewing area into the receiving space of gas in air discharge duct, it is ensured that display
Gas in region can be stored in gas held space as much as possible.
The cover plate of 4 display devices provided by the utility model, the gas held cavity have optical cement it is uncured it
Before, connected with the viewing area and supply the first state that gas is flowed into it in the viewing area, and with described
After optical cement layer solidification, the second state for isolating with the viewing area.Gas held cavity has two states, in the first shape
Under state, the gas in viewing area is enabled to enter in gas held cavity;In the second condition so that gas held cavity
Complete isolation is in viewing area, gas is mothballed in receiving cavity.
5. the cover plate of display device provided by the utility model, the air discharge duct is at least two, and the air discharge duct is at least
It is centered around around described two side walls in viewing area;Or the air discharge duct is at least four, all air discharge ducts are uniform
Ground is centered around around the viewing area.Multiple air discharge ducts are distributed on the surface of edge regions and are centered around viewing area week
Enclose so that the gas in viewing area moves along multiple directions towards air discharge duct direction, accelerates the speed that gas enters air discharge duct
Degree, also ensuring that has enough spaces by the gas held in viewing area in air discharge duct, is arranged so as to improve gas in viewing area
The efficiency gone out.
6. display device provided by the utility model, the cover plate of the display device described in any of the above-described, display module with
And optical cement layer, optical cement layer are used to the display module being fixedly connected with the cover plate level.The display device of this structure,
Due to using above-mentioned cover plate so that the air discharge duct that gas is all drained into fringe region in viewing area in display device cover plate
It is interior, improve the display effect of viewing area.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic top plan view of the cover plate of the display device provided in the utility model embodiment 1;
Fig. 2 is the partial enlarged drawing of Fig. 1 cover plate air discharge duct at A;
Fig. 3 is longitudinal sectional drawing of Fig. 1 cover plates along B-B;
Fig. 4 is the longitudinal sectional drawing of the display device provided in the utility model embodiment 2;
Description of reference numerals:1- glass;11- viewing areas;12- fringe regions;121- air discharge ducts;2- gas held chambers
Body;3- ink layers;4- optical cement layers;5- display modules;
The opening bore of a- air discharge ducts;
The width of the outside end wall surface of b- air discharge ducts.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
Embodiment 1
The present embodiment provides a kind of cover plate of display device, and as shown in Figure 1, Figure 2 and Figure 3, cover plate includes glass 1 and ink
Layer 3.Wherein, glass 1 has the viewing area 11 being located therein, and is molded over the fringe region of the edge of viewing area 11
12;Ink layer 3 is set in edge region 12 so that viewing area 11 is recessed in the space that ink layer 3 surrounds.Fringe region
Multiple air discharge ducts 121 horizontal-extending from inside to outside are offered on 12 surface, the opening of air discharge duct 121 is close to viewing area 11
Side simultaneously connects with viewing area 11, and multiple edge regions 12 of air discharge duct 121 are evenly distributed, and by the four of viewing area 11
Individual side wall is surrounded, for example, setting 14 air discharge ducts 121, width side respectively along in the two side walls of the length direction of display device
To two side walls on set 11 air discharge ducts, 121,50 air discharge ducts 121 to be evenly distributed on the peripheral edge of viewing area 11 respectively
At edge.When being not coated with optical cement layer 4 on ink layer 3 and viewing area 11, air discharge duct 121 is in connected state with viewing area 11
State.
As shown in figure 4, cover plate is being bonded in installation process, it is necessary in ink layer 3 and viewing area 11 with display module 5
On apply needed for thickness optical cement layer 4, such as OCA optical cements, by optical cement layer 4 by cover plate and the company of fixation of display module 5
Connect.
When being arranged on for cover plate in display module 5, bubble-free phenomenon occurs in the viewing area 11 of glass 1, in cover plate
Thickness direction on, the height of air discharge duct 121 is more than the thickness of ink layer 3, and viewing area 11 and edge are coated in optical cement layer 4
Behind region 12, to be embedded in shape between the optical cement in air discharge duct 121 and the ink layer 3 of the embedded bottom of air discharge duct 121
Into gas held cavity 2;Gas held cavity 2 has before optical cement is uncured, is connected with viewing area 11 and for display
The first state that gas is flowed into it in region 11, and with the after the solidification of optical cement layer 4, isolated with viewing area 11
Two-state.Wherein, in the first state, the gas in viewing area 11 enters in gas held cavity 2, is accommodated when gas enters
After cavity, optical cement layer 4 solidifies so that gas held cavity 2 is isolated with viewing area 11, is isolated in gas held cavity 2
Interior gas can not be just again returned in viewing area 11, all driven the gas in viewing area 11 to edge away so as to realize
Region 12, the display effect of viewing area 11 is not interfered with, improve fitting deaeration yield yet.
For air discharge duct 121, as depicted in figs. 1 and 2, from viewing area 11 towards the direction of fringe region 12
On, the opening bore a of air discharge duct 121 is less than the width b of the outside end wall surface of air discharge duct 121.For example, the transverse direction of air discharge duct 121
Cross sectional shape is trapezoidal groove, when the optical cement layer 4 on to viewing area 11 applies pressure deaeration, due to air discharge duct 121
Opening close to the side of viewing area 11, small-bore opening can prevent or reduce in viewing area 11 optical cement warp
Cross this opening to be flowed into air discharge duct 121, the opening for avoiding air discharge duct is blocked, so that viewing area 11 and air discharge duct
121 are in connected state, and the gas in viewing area 11 can be entered in air discharge duct 121, realize deaeration function;Meanwhile open
The mouth small gas for being also prevented from having been introduced into air discharge duct 121 of bore is reversely flowed in viewing area 11 again so that enters exhaust
Gas in groove 121 is stored in air discharge duct 121, further assures that in viewing area 11 do not have gas residue.
On the thickness direction of cover plate, the height of air discharge duct 121 is more than the thickness of the ink layer 3, such as air discharge duct 121
Height be 50um, the thickness of ink layer 3 is 16um, is easy to subsequent optical glue-line 4 to be coated in ink layer 3 so that enter exhaust
Above-mentioned gas held cavity 2 is formed between the top of ink layer 3 in groove 121 and the bottom of optical cement layer 4.
The cover plate of the display device of this structure, the process being bonded with display module are:First on the fringe region 12 of glass 1
The ink layer 3 of thickness needed for painting, part ink enter the bottom of air discharge duct 121;Again in the upper table of ink layer 3 and viewing area 11
Face apply needed for thickness optical cement layer 4, partial optical glue enters in air discharge duct 121, due to the stickiness of itself of OCA optical cement layers 4,
So that gap be present between the top of ink layer 3 in the bottom and air discharge duct 121 of OCA optical cement layers 4 in air discharge duct 121,
Form above-mentioned gas held cavity 2.
During applying optical cement, the portion gas in viewing area 11 can enter in air discharge duct 121, in air discharge duct
The gas held cavity 2 formed in 121 between optical cement layer 4 and ink layer 3;Before optical cement is uncured, optical cement is applied
Plus-pressure (such as deaeration technique of pressurizeing) so that the remaining gas in viewing area 11 enters in gas held cavity 2;
After optics adhesive curing, the optical cement after solidifying in air discharge duct 121 will isolate between viewing area 11 and gas held cavity 2, make
Gas is obtained always to locate in the gas held cavity 2 in fringe region 12, there will be no bubble in viewing area 11 to return again to, so as to
Solves air bubble problem caused by ink segment difference, it is ensured that the display effect of display device.
Further, since air discharge duct 121 is the groove positioned at fringe region 12, ink layer is equally coated with air discharge duct 121
3, so the gap between ink layer 3 and OCA optical cement layers 4 in air discharge duct 121 does not interfere with the display requirement of display device,
Air discharge duct 121 is filled and led up also without ink layer 3, so as to eliminate the technological requirement that ink is filled and led up, cost is reduced, improves
Efficiency.
As interchangeable embodiment, the height of air discharge duct 121 can also be 40um, 45um, 60um, as long as more than oil
The thickness of layer of ink 3, during cover plate is bonded with display module so that into the ink layer 3 in air discharge duct 121 and optical cement layer 4
Above-mentioned gas held cavity 2 is formed, specific height can design according to actual use situation.
As variant embodiment, air discharge duct 121 can also be that lateral cross section is shaped as the shapes such as triangle, T-shaped, sector
Shape, only need to be on from viewing area 11 towards the direction of fringe region 12, and the opening bore a of air discharge duct 121 is less than air discharge duct 121
Outside end wall surface width b, it becomes possible to optical cement in viewing area 11 is reduced or avoided towards flowing in air discharge duct 121
It is dynamic so that the gas in viewing area 11 can be normally entered in gas held cavity 2 through this opening.As further becoming
Shape, the opening bore a of air discharge duct 121 can also be equal to the width b of the outside end wall surface of air discharge duct 121;Or it can also be more than
The width b of the outside end wall surface of air discharge duct 121, now just need when applying pressure to optical cement layer, suitably reduce pressure,
Opening of the optical cement through air discharge duct 121 is reduced to overflow in gas held cavity 2, but this embodiment remain able to realize it is above-mentioned
Accommodate the function of gas.
As interchangeable embodiment, air discharge duct 121 can be one, two, three, four, five, six, seven
It is individual, eight, nine, ten, 20,60 etc., meet at least one air discharge duct 121, certainly according to demand, row
Air drain 121 can also be arbitrarily distributed on the surface of edge region 12, only need to play accommodating gas in viewing area 11
Function.
As interchangeable embodiment, open up the air discharge duct 121 on the surface of edge region 12 can also be centered around it is aobvious
Show three lateral wall circumferences in region 11, be either centered around two lateral wall circumferences of viewing area 11 or be centered around viewing area
11 lateral wall circumference, only needs air discharge duct 121 to be connected with viewing area 11 so that the bubble in viewing area 11 enters exhaust
In groove 121.
As the further deformation of above-mentioned embodiment, above-mentioned gas held cavity 2 can not also be formed, only need to be along lid
On the thickness direction of plate, the thickness of ink layer 2 is less than the height of air discharge duct 121, and ink layer 2 is embedded into air discharge duct, will not incite somebody to action
The filling of air discharge duct 121 is full, to the insertion headspace of subsequent optical glue-line 4, when optical cement layer 4 is embedded into the oil in air discharge duct 121
During 3 top of layer of ink, even if there be no above-mentioned gas held chamber 2, because optical cement is before uncured, there is stickiness, when aobvious
When showing that gas is extruded in air discharge duct 121 in region 11, gas can apply upward power to optical cement so that optical cement layer 4
Gap between ink layer 3 be present, gas is drained into the gap, can also realize the function of above-mentioned storage gas.
Embodiment 2
The present embodiment provides a kind of display device, as shown in figure 4, the display device any one of including embodiment 1
Cover plate 1, display module 5 and optical cement layer 4.Optical cement layer 4 is covered on ink layer 3 and is filled in where viewing area 11
Space in, for display module 5 to be fixedly connected with cover plate level, such as OCA glue.
The display device of this structure, due to being bonded using the cover plate in embodiment 1, the cover plate of the structure with display module 5
During installation, OCA optical cement layers 4 are applied on the viewing area 11 and ink layer 3 of madial wall, now, due to OCA optical cement layers
4 stickiness of itself so that the top of the bottoms of the OCA optical cement layers 4 in air discharge duct 121 and the ink layer 3 in air discharge duct 121 it
Between gap be present, form above-mentioned gas held cavity 2.Then pressurization deaeration is carried out to viewing area 11, by viewing area 11
Bubble take in the air discharge duct 121 in the interior sidewall surface of fringe region 12.Finally cover plate is adhered in display module 5 again.This
The display device of structure, the area of its cover plate etching is small, so cost is low.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.