CN110288909A - A kind of bend glass cover board and preparation method thereof, flexible display device - Google Patents
A kind of bend glass cover board and preparation method thereof, flexible display device Download PDFInfo
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- CN110288909A CN110288909A CN201910499563.2A CN201910499563A CN110288909A CN 110288909 A CN110288909 A CN 110288909A CN 201910499563 A CN201910499563 A CN 201910499563A CN 110288909 A CN110288909 A CN 110288909A
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- ink
- glass cover
- main body
- groove
- plate main
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The invention discloses a kind of bend glass cover boards and preparation method thereof, flexible display device, slot treatment, which is carried out, by the ink area to be coated to 2.5D/3D glass cover-plate forms groove, so that ink layer upper surface lower surface corresponding with bend glass cover board is concordant after filling ink in groove, ink offset is not present, improve fitting bubble, product yield is promoted, in addition, can also reduce transparent optical cement thickness used by fitting, and then complete machine thickness is reduced, meet the further lightening requirement of product.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of bend glass cover board and preparation method thereof, Flexible Displays
Equipment.
Background technique
Flexible panel is the base in OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) technology
Grow up on plinth.Based on flexible OLED panel technology, there is the Curved screen mobile phone terminal of glass cover-plate curved edge, by
Have many advantages, such as that mellow and full feel, elaborate facades, visual angle is wide, screen accounting is big, has become mainstream mobile phone terminal in the market in it
One of.
Glass cover-plate is also referred to as form protective glass, is that the electronics such as mobile phone, tablet computer, digital camera or laptop are set
Standby important composition component.With the development of curve screens electronic equipment, people relax to the appearance of touch screen, lightening and use
The requirements such as appropriateness are also higher and higher, and traditional flat glass cover board gradually rises to the special-shaped globoidal glass cover board transformation such as 2.5D, 3D
Grade.2.5D glass cover-plate refers to that the seamed edge of cover board has rounding off, and 3D glass cover-plate refers to the generally special-shaped cambered surface of cover board, that is, covers
Plate overall surface is curved surface.Round and smooth edge is more stronger than the anticollision ability of square edge, and safety is higher, keeps product more durable,
It is also more in line with the aesthetic experience of consumer simultaneously.
Please refer to Figure 1A -1B, wherein Figure 1A is the side view of 3D glass cover-plate in the prior art, and Figure 1B is the prior art
Side view after the fitting of mean camber screen mobile phone terminal 3D glass cover-plate.
As shown in Figure 1A, it is needed in Curved screen mobile phone terminal production process in the prior art using 3D glass cover-plate (Cover
Glass) 11 it is used as Curved screen mobile phone terminal front shroud.In the viewfinder area (VA) 111 of 3D glass cover-plate 11 with exterior domain, based on screening
Light, which is considered, has ink area (Ink area) design.Ink area mainly uses the ink such as black, white to be coated to form ink
Layer 112, black ink layer thickness is generally 15-25um magnitude, and white ink thickness degree is generally 20-30um magnitude.Therefore, oily
112 upper surface of layer of ink lower surface corresponding with 3D glass cover-plate 11 can generate a step, referred to as ink offset, and it is disconnected to form ink
The region of difference is ink offset area 113 (illustrating its position in figure with dashed box).
As shown in Figure 1B, it is needed between 3D glass cover-plate 11 and the display module 12 of Curved screen mobile phone terminal using layer of transparent
Optical cement (OCA) 13 is bonded, and the fitting of 3D glass cover-plate 11 is completed.The display module 12 of Curved screen mobile phone terminal include according to
The secondary oled layer 121 being stacked, touch-control (TP) layer 122 and polaroid 123 etc..3D glass cover-plate 11 and curved surface are shown in figure
It is bonded between the polaroid 123 of 12 top layer of display module of screen mobile phone terminal using layer of transparent optical cement 13.However,
The process that practical vacuum attaches often will appear bubble in ink offset area 113, directly affected due to the influence of ink offset
Product yield.In order to overcome ink offset, 13 thickness of transparent optical cement of use is generally 3-4 times of 112 thickness of ink layer, makes
It is thicker to obtain complete machine thickness, is unfavorable for the lightening development of product.
Therefore, how to overcome ink offset and meet the further lightening requirement of product, be that 3D glass cover-plate develops mesh
The preceding technical issues that need to address.
Summary of the invention
It is an object of the present invention in view of the problems of the existing technology, a kind of bend glass cover board and its production are provided
Method, flexible display device, ink layer upper surface lower surface corresponding with bend glass cover board is concordant, and ink offset is not present,
To reduce vacuum abutted used transparent optical cement thickness, and then complete machine thickness is reduced, meets the further light of product
Thinning requirement.
To achieve the above object, the present invention provides a kind of production methods of bend glass cover board, comprising the following steps: mentions
For a cover plate main body；Slot treatment is carried out at least one ink area to be coated of the cover plate main body, in the ink area to be coated
Form groove；Ink filling is carried out to the groove, forms ink layer, wherein the thickness of the ink layer and the groove
Depth is identical, and the width of the ink layer is of same size with the groove, so that the bend glass cover board and display
Module will not generate bubble when being bonded.
To achieve the above object, the present invention also provides a kind of bend glass cover boards, comprising: a cover plate main body, the lid
Plate main body has at least one ink area to be coated, and each ink area to be coated is equipped with a groove；An at least ink layer is filled in institute
It states in groove, the thickness of the ink layer is identical as the depth of the groove, the width of the width of the ink layer and the groove
Spend it is identical so that the bend glass cover board will not generate bubble when being bonded with display module.
To achieve the above object, the present invention also provides a kind of flexible display device, the flexible display device includes song
Surface glass cover board and flexible touch control display module, using saturating between the bend glass cover board and the flexible touch control display module
Learn glue laminating in Mingguang City；The bend glass cover board uses bend glass cover board of the present invention.
The present invention has the advantages that the present invention carries out slot treatment by the ink area to be coated to 2.5D/3D glass cover-plate
Groove is formed, depth of groove corresponds to ink film thickness, and recess width corresponds to ink layer width, therefore ink is filled in groove
Afterwards, since the thickness of ink layer is identical as the depth of groove, the width of ink layer and groove it is of same size so that ink layer
Lower surface lower surface corresponding with cover plate main body is concordant, and ink offset is not present, so that 2.5D/3D glass cover-plate and display
Module not will form bubble when being bonded, improve product yield.Meanwhile existing coating work can be used in groove ink layer fill process
Skill effectively controls production cost without in addition developing new coating ink layer technique.And lower surface and lid due to ink layer
The corresponding lower surface of plate main body is concordant, and ink offset is not present, so what bend glass cover board used when being bonded with display module
Transparent optical cement thickness reduces, and can be reduced to existing is transparent optical cement thickness used by overcoming ink offset to influence
30% or so, so that complete machine thickness be effectively reduced, meet the further lightening requirement of product, to bring better user's body
It tests.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Figure 1A, the in the prior art side view of 3D glass cover-plate；
Figure 1B, the side view after Curved screen mobile phone terminal 3D glass cover-plate is vacuum abutted in the prior art；
Fig. 2, the flow diagram of the production method of bend glass cover board of the present invention；
Fig. 3 A-3C, the production flow diagram of bend glass cover board first embodiment of the present invention；
Fig. 4, the layer structure schematic diagram of flexible display device first embodiment of the present invention；
Fig. 5 A-5C, the production flow diagram of bend glass cover board second embodiment of the present invention；
Fig. 6, the layer structure schematic diagram of flexible display device second embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar component or component with the same or similar functions are indicated to same or similar label eventually.The present invention is mentioned
The direction term arrived, such as: up, down, left, right, before and after, inside and outside, side etc. are only the directions with reference to attached drawing.Below by way of
The embodiment being described with reference to the drawings and the direction term used are exemplary, and for explaining only the invention, and cannot be understood
For limitation of the present invention.In addition, the present invention provides various specific techniques and material example, but this field is common
Technical staff can be appreciated that the application of other techniques and/or the use of other materials.
Referring to Fig. 2, the flow diagram of the production method of bend glass cover board of the present invention.Production method of the present invention includes
Following steps: S21: a cover plate main body is provided；S22: carrying out slot treatment at least one ink area to be coated of the cover plate main body,
To form groove in the ink area to be coated；S23: treated that the cover plate main body carries out intensive treatment for cross-notching；S24: right
The groove carries out ink filling, forms ink layer, wherein the thickness of the ink layer is identical as the depth of the groove, institute
The of same size of the width of ink layer and the groove is stated, so that when the bend glass cover board is bonded with display module not
Bubble can be generated.Wherein step S23 is optional step, is illustrated in figure with dashed box.Detailed description is provided below in conjunction with attached drawing.
S21: a cover plate main body is provided.
In further embodiment, the cover plate main body is 2.5D glass cover-plate or 3D glass cover-plate.
In further embodiment, hot bending shape is carried out to 2D glass, forms 3D glass cover-plate as the cover plate main body.
S22: slot treatment is carried out at least one ink area to be coated of the cover plate main body, in the ink area shape to be coated
At groove.
In further embodiment, the cover plate main body includes two ink areas to be coated, and described two ink to be coated are distinguished
Not Wei Yu two ends other than the viewfinder area of the cover plate main body lower surface.
It, can be using electron beam lithography, focused ion beam or laser to the ink area to be coated in further embodiment
Slot treatment is carried out, to form groove in the ink area to be coated.In other embodiments, it also can use etching solution to described
Ink area to be coated carries out chemical etching, to form groove in the ink area to be coated.
S23: treated that the cover plate main body carries out intensive treatment for cross-notching.
In further embodiment, intensive treatment is carried out to 2.5D glass cover-plate or 3D glass cover-plate, is formed corresponding strong
Change glass cover-plate.Strengthened glass is also known as tempered glass, is the method used physically or chemically, forms a pressure on the glass surface and answers
Power layer makes glass compression strength with higher itself, is not easy to be destroyed.When strengthened glass is by external force, this pressure
Stressor layers can offset partial pressure, avoid the fragmentation of glass, to achieve the purpose that improve strength of glass.Strengthened glass resistance to compression
Intensity is high, impact strength is also very high, elastic greatly, thermal stability is good.The method of physical strengthening can refer to prior art, herein not
It repeats again.
In further embodiment, the cover plate main body after slot treatment can be immersed in 400 DEG C or more molten state nitre
Sour potassium (KNO3) in 3-10 hours so that the cover plate main body surface layer of glass formed compressive stress layer.Specifically, in molten state
KNO3In, the Na of surface layer of glass+Ion and K+Ion exchange occurs for ion, due to K+Ionic radius is greater than Na+Radius, thus cold
But it causes outer layer to shrink smaller and internal layer during and shrinks larger, after being cooled to room temperature, glass is just in internal layer tension, outer layer
The state of compression achievees the purpose that improve strength of glass so that surface layer of glass forms compressive stress layer.
S24: ink filling is carried out to the groove, forms ink layer, wherein the thickness of the ink layer and the groove
Depth it is identical, the width of the ink layer is of same size with the groove, so that the bend glass cover board and aobvious
Bubble will not be generated when showing module fitting.
In further embodiment, the ink layer can be filled using black ink or white ink.
In further embodiment, exposure development mode or intelligence spraying can use in conjunction with laser carving mode to the groove
Carry out ink filling.Exposure development mode or intelligence spraying combine laser carving mode to can refer to prior art, and details are not described herein again.
In other embodiments, existing silk-screen printing (for 2.5D glass cover-plate) or glare film (Deco Film) also be can use
The ink layers coating process such as attaching (being directed to 3D glass cover-plate), carry out ink filling to the groove, form ink layer.
It should be noted that the display module includes each component necessary to showing.
The production method of the novel bend glass cover board of one kind proposed by the present invention, by 2.5D/3D glass cover-plate
Ink area to be coated carries out slot treatment and forms groove, and depth of groove corresponds to ink film thickness, and recess width corresponds to ink layer width,
Therefore after filling ink in groove, since the thickness of ink layer and the depth of groove are identical, the width of ink layer and groove
It is of same size, so that the lower surface of ink layer lower surface corresponding with cover plate main body is concordant, ink offset is not present, so that
2.5D/3D glass cover-plate not will form bubble when being bonded with display module, improve product yield.Meanwhile groove ink layer is filled out
Filling technique can be used existing coating process, without in addition developing new coating ink layer technique, effectively control production cost.And
Since the lower surface of ink layer lower surface corresponding with cover plate main body is concordant, ink offset is not present, so bend glass cover board
Transparent optical cement (OCA) thickness used when being bonded with display module reduces, and can be reduced to existing is to overcome ink offset shadow
30% or so of transparent optical cement thickness, so that complete machine thickness be effectively reduced, meets the further frivolous of product used by ringing
Change and require, to bring better user experience.
Please refer to figs. 2 and 3 together A-3C, wherein Fig. 3 A-3C is the system of bend glass cover board first embodiment of the present invention
Make flow chart.
About step S21: providing a cover plate main body, please also refer to Fig. 2 and Fig. 3 A, wherein Fig. 3 A is the present invention first
The side view of 3D glass cover-plate after the hot bending shape that embodiment provides.It can be formed by carrying out hot bending shape to 2D glass
Cover plate main body of the 3D glass cover-plate 31 as the bend glass cover board 30.Wherein, 3D glass cover-plate 31 includes a viewfinder area
311, and a first end 312 and a second end 313 other than the viewfinder area 311.
About step S22: slot treatment is carried out at least one ink area to be coated of the cover plate main body, described to be coated
Ink area forms groove, and please also refer to Fig. 2 and Fig. 3 B, wherein Fig. 3 B is the slot treatment that first embodiment of the invention provides
The side view of 3D glass cover-plate afterwards.Specifically, with etching, electron beam lithography (EBL), focused ion beam (FIB) or can swash
The means such as light carry out slot treatment to two ink areas to be coated of 3D glass cover-plate 31 respectively, be respectively formed one first groove 314,
And one second groove 315.Wherein, the depth of first groove 314 and second groove 315 corresponds to ink film thickness, institute
The width for stating the first groove 314 and second groove 315 corresponds to ink layer width, so that after filling ink, ink layer
Lower surface it is concordant with the lower surface of the respective end of 3D glass cover-plate 31, be not present ink offset.
In further embodiment, intensive treatment can be carried out with cross-notching treated 3D glass cover-plate 31, specially will
It is immersed in 400 DEG C or more molten state KNO3It is 3-10 hours middle, the Na of surface layer of glass+Ion and K+Ion exchange occurs for ion, due to
K+Ionic radius is greater than Na+Radius, thus cause in cooling procedure outer layer shrink smaller and internal layer shrink it is larger, when being cooled to
After room temperature, glass is just in internal layer tension, and the state that outer layer is pressurized reaches raising glass so that surface layer of glass forms compressive stress layer
The purpose of glass intensity.
About step S24: ink filling is carried out to the groove, forms ink layer, please also refer to Fig. 2 and Fig. 3 C,
Wherein Fig. 3 C is the side view for the filled 3D glass cover-plate of ink that first embodiment of the invention provides.Specifically, can benefit
Ink filling is carried out to corresponding recesses with the means such as exposure development or intelligent spraying+laser carving, is respectively formed one first ink layer
316 and one second ink layer 317.The thickness of first ink layer 316 is identical as the depth of first groove 314, described
The width of first time ink layer 316 is of same size with first groove 314, therefore after ink filling, first oil
The lower surface of layer of ink 316 is concordant with the lower surface of first end 312 of the 3D glass cover-plate 31, and ink offset is not present；Phase
It answers, the thickness of second ink layer 317 is identical as the depth of second groove 315, second of ink layer 317
Width is of same size with second groove 315, thus ink filling after, the lower surface of second ink layer 317 with
The lower surface of the second end 313 of the 3D glass cover-plate 31 is concordant, and ink offset is not present.By above-mentioned setting, so that bent
Surface glass cover board 30 not will form bubble when being bonded with display module, improve product yield.Meanwhile groove ink layer fills work
Existing coating process can be used in skill, without in addition developing new coating ink layer technique, effectively controls production cost.
Referring to Fig. 3 C, the present invention also provides a kind of bend glass cover boards.The bend glass cover board 30 includes: one
Two ink areas to be coated of 3D glass cover-plate 31, the 3D glass cover-plate 31 are respectively equipped with the first groove 314 and the second groove
315；First ink layer 316 is filled in first groove 314, the thickness of first ink layer 316 and described first recessed
The depth of slot 314 is identical, and the width of first ink layer 316 is of same size with first groove 314；Second ink layer
317, it is filled in second groove 315, the depth phase of the thickness of second ink layer 317 and second groove 315
Together, the width of second ink layer 317 and second groove 315 is of same size；So that the bend glass lid
Plate 30 will not generate bubble when being bonded with display module.Wherein, the 3D glass cover-plate 31 includes viewfinder area 311, and is located at
First end 312 and the second end 313 other than viewfinder area 311.Described two ink areas to be coated are located at the viewfinder area
The lower surface of first end 312 and the second end 313 other than 311, i.e., the described corresponding first end of first groove 314
312, the corresponding the second end 313 of second groove 315.
In further embodiment, the 3D glass cover-plate 31 is the strengthened glass cover board by intensive treatment.
Referring to Fig. 4, the layer structure schematic diagram of flexible display device first embodiment of the present invention.The Flexible Displays are set
Standby includes bend glass cover board 30 and flexible touch control display module 40, and the bend glass cover board 30 is shown with the flexible touch-control
It is vacuum abutted using transparent optical cement 41 between module 40；The bend glass cover board 30 uses bend glass as shown in Figure 3 C
Cover board 30.First, second ink layer 316,317 of the bend glass cover board 30 plays shading, beautification function.It is described flexible aobvious
Show that equipment includes but is not limited to the electronic equipments such as mobile phone, tablet computer, digital camera or laptop.
In further embodiment, the 3D glass cover-plate 31 of the bend glass cover board 30 is the reinforcing by intensive treatment
Glass cover-plate acts on to protect the flexible touch control display module 40, and can anti-scratch, resistance external impact.
In further embodiment, the transparent optical cement 41 can be acrylic glue material or silica gel, guarantee that light penetrates
The bend glass cover board 30 and the flexible touch control display module 40 are bonded in the case where rate, and impact energy can be absorbed.
It should be noted that the flexibility touch control display module 40 includes each component necessary to touch-control is shown, such as wrap
Include the oled layer 401 being cascading, touch-control (TP) layer 402 and polaroid 403 etc..The bend glass lid is shown in figure
It is bonded between the polaroid 403 of 40 top layer of plate 30 and the flexible touch control display module using layer of transparent optical cement 41.
Flexible display device of the present invention, the lower surface of the ink layer of bend glass cover board following table corresponding with 3D glass cover-plate
Face is concordant, and ink offset is not present, so that not will form bubble when fitting, fitting effect is good, improves product yield.Together
When, existing coating process can be used in groove ink layer fill process, without in addition developing new coating ink layer technique, effectively
Control production cost.And since there is no ink offset, so bend glass cover board is adopted when being bonded with flexible touch control display module
Transparent optical cement thickness reduces, and can be reduced to existing is transparent optical cement thickness used by overcoming ink offset to influence
30% or so, so that flexible display device complete machine thickness be effectively reduced, meet the further lightening requirement of product, thus band
Carry out better user experience.
Referring to Figure 2 together and Fig. 5 A-5C, wherein Fig. 5 A-5C is the system of bend glass cover board second embodiment of the present invention
Make flow chart.
About step S21: providing a cover plate main body, please also refer to Fig. 2 and Fig. 5 A, wherein Fig. 5 A is the present invention second
The side view for the 2.5D glass cover-plate that embodiment provides.Namely a 2.5D glass cover-plate 51 is provided and is used as the bend glass cover board
50 cover plate main body.Wherein, 2.5D glass cover-plate 51 includes a viewfinder area 511, and one other than the viewfinder area 511
First end 512 and a second end 513.
About step S22: slot treatment is carried out at least one ink area to be coated of the cover plate main body, described to be coated
Ink area forms groove, and please also refer to Fig. 2 and Fig. 5 B, wherein Fig. 5 B is the slot treatment that second embodiment of the invention provides
The side view of 2.5D glass cover-plate afterwards.Specifically, can with etching, electron beam lithography (EBL), focused ion beam (FIB) or
The means such as laser carry out slot treatment to two ink areas to be coated of 2.5D glass cover-plate 51 respectively, are respectively formed one first groove
514 and one second groove 515.Wherein, the depth of first groove 514 and second groove 515 corresponds to ink thickness
The width of degree, first groove 514 and second groove 515 corresponds to ink layer width, so that after filling ink, oil
The lower surface of layer of ink is concordant with the lower surface of the respective end of 2.5D glass cover-plate 51, and ink offset is not present.
In further embodiment, intensive treatment can be carried out with cross-notching treated 2.5D glass cover-plate 51, specially
It is immersed in 400 DEG C or more molten state KNO3It is 3-10 hours middle, the Na of surface layer of glass+Ion and K+Ion exchange occurs for ion, by
In K+Ionic radius is greater than Na+Radius shrinks larger, works as cooling so that outer layer be caused to shrink smaller and internal layer in cooling procedure
To after room temperature, glass is just in internal layer tension, and the state that outer layer is pressurized reaches raising so that surface layer of glass forms compressive stress layer
The purpose of strength of glass.
About step S24: ink filling is carried out to the groove, forms ink layer, please also refer to Fig. 2 and Fig. 5 C,
Wherein Fig. 5 C is the side view for the filled 2.5D glass cover-plate of ink that second embodiment of the invention provides.Specifically, can be with
Ink filling is carried out to corresponding recesses using the means such as exposure development or intelligent spraying+laser carving, is respectively formed one first ink layer
516 and one second ink layer 517.The thickness of first ink layer 516 is identical as the depth of first groove 514, described
The width of first time ink layer 516 is of same size with first groove 514, therefore after ink filling, first oil
The lower surface of layer of ink 516 is concordant with the lower surface of first end 512 of the 2.5D glass cover-plate 51, and ink offset is not present；
Correspondingly, the thickness of second ink layer 517 is identical as the depth of second groove 515, second of ink layer 517
Width and second groove 515 it is of same size, therefore after ink filling, the lower surface of second ink layer 517
It is concordant with the lower surface of the second end 513 of the 2.5D glass cover-plate 51, ink offset is not present.By above-mentioned setting, make
Obtaining when bend glass cover board 50 is bonded with display module not will form bubble, improve product yield.Meanwhile groove ink layer is filled out
Filling technique can be used existing coating process, without in addition developing new coating ink layer technique, effectively control production cost.
Referring to Fig. 5 C, the present invention also provides a kind of bend glass cover boards.The bend glass cover board 50 includes: one
2.5D glass cover-plate 51, it is recessed that two ink areas to be coated of the 2.5D glass cover-plate 51 are respectively equipped with the first groove 514 and second
Slot 515；First ink layer 516 is filled in first groove 514, the thickness of first ink layer 516 and described first
The depth of groove 514 is identical, and the width of first ink layer 516 is of same size with first groove 514；Second ink
Layer 517, is filled in second groove 515, the depth of the thickness of second ink layer 517 and second groove 515
Identical, the width of second ink layer 517 is of same size with second groove 515；So that the bend glass
Cover board 50 will not generate bubble when being bonded with display module.Wherein, the 2.5D glass cover-plate 51 includes viewfinder area 511, and
First end 512 and the second end 513 other than viewfinder area 511.Described two ink areas to be coated are located at the view
The lower surface of first end 512 and the second end 513 other than window area 511, i.e., described first groove 514 corresponding described first
End 512, the corresponding the second end 513 of second groove 515.
In further embodiment, the 2.5D glass cover-plate 51 is the strengthened glass cover board by intensive treatment.
Referring to Fig. 6, the layer structure schematic diagram of flexible display device second embodiment of the present invention.The Flexible Displays are set
Standby includes bend glass cover board 50 and flexible touch control display module 60, and the bend glass cover board 50 is shown with the flexible touch-control
It is vacuum abutted using transparent optical cement 61 between module 60；The bend glass cover board 50 uses bend glass as shown in Figure 5 C
Cover board 50.First, second ink layer 516,517 of the bend glass cover board 50 plays shading, beautification function.It is described flexible aobvious
Show that equipment includes but is not limited to the electronic equipments such as mobile phone, tablet computer, digital camera or laptop.
In further embodiment, the 2.5D glass cover-plate 51 of the bend glass cover board 50 is by the strong of intensive treatment
Change glass cover-plate, acts on to protect the flexible touch control display module 60, and can anti-scratch, resistance external impact.
In further embodiment, the transparent optical cement 61 can be acrylic glue material or silica gel, guarantee that light penetrates
The bend glass cover board 50 and the flexible touch control display module 60 are bonded in the case where rate, and impact energy can be absorbed.
It should be noted that the flexibility touch control display module 60 includes each component necessary to touch-control is shown, such as wrap
Include the oled layer 601 being cascading, touch-control (TP) layer 602 and polaroid 603 etc..The bend glass lid is shown in figure
It is bonded between the polaroid 603 of 60 top layer of plate 50 and the flexible touch control display module using layer of transparent optical cement 61.
Flexible display device of the present invention, under the lower surface of the ink layer of bend glass cover board is corresponding with 2.5D glass cover-plate
Ink offset is not present in flush, so that not will form bubble when vacuum abutted, fitting effect is good, and it is good to improve product
Rate.Meanwhile existing coating process can be used in groove ink layer fill process, without in addition developing new coating ink layer work
Skill, effectively control production cost.And since there is no ink offset, so bend glass cover board and flexible touch control display module are pasted
The transparent optical cement thickness used when conjunction reduces, and can be reduced to existing is transparent optical used by overcoming ink offset to influence
30% or so of glue thickness meets the further lightening requirement of product so that flexible display device complete machine thickness be effectively reduced,
To bring better user experience.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (12)
1. a kind of production method of bend glass cover board, which comprises the following steps:
One cover plate main body is provided；
Slot treatment is carried out at least one ink area to be coated of the cover plate main body, to form groove in the ink area to be coated；
Ink filling is carried out to the groove, forms ink layer, wherein the depth phase of the thickness of the ink layer and the groove
Together, the width of the ink layer and the groove is of same size, so that the bend glass cover board and display module paste
Bubble will not be generated when conjunction.
2. production method as described in claim 1, which is characterized in that the step of described one cover plate main body of offer further wraps
It includes: hot bending shape is carried out to 2D glass, form 3D glass cover-plate as the cover plate main body.
3. production method as described in claim 1, which is characterized in that it is described at least the one of the cover plate main body to oiling
The step of ink-covered area progress slot treatment, further comprises: using electron beam lithography, focused ion beam or laser to described to oiling
Ink-covered area carries out slot treatment.
4. production method as described in claim 1, which is characterized in that the cover plate main body includes two ink areas to be coated, institute
State the lower surface for two ends that two ink areas to be coated are located at other than the viewfinder area of the cover plate main body.
5. production method as described in claim 1, which is characterized in that described the step of carrying out ink filling to the groove
Further comprise: in the way of exposure development or intelligence spraying carries out ink filling to the groove in the way of laser carving.
6. production method as described in claim 1, which is characterized in that it is described at least the one of the cover plate main body to oiling
Ink-covered area carries out: treated that the cover plate main body carries out intensive treatment for cross-notching.
7. production method as claimed in claim 6, which is characterized in that the cross-notching treated the cover plate main body into
The step of row intensive treatment, further comprises: the cover plate main body after slot treatment is immersed in 400 DEG C or more molten state nitric acid
3-10 hours in potassium, so that the surface layer of glass of the cover plate main body forms compressive stress layer.
8. a kind of bend glass cover board characterized by comprising
One cover plate main body, the cover plate main body have at least one ink area to be coated, and each ink area to be coated is equipped with a groove；
An at least ink layer is filled in the groove, and the thickness of the ink layer is identical as the depth of the groove, the oil
The width of layer of ink is of same size with the groove, so that the bend glass cover board will not produce when being bonded with display module
Anger bubble.
9. bend glass cover board as claimed in claim 8, which is characterized in that the cover plate main body is 2.5D glass cover-plate or 3D
Glass cover-plate.
10. bend glass cover board as claimed in claim 8, which is characterized in that the cover plate main body is strengthened glass cover board.
11. bend glass cover board as claimed in claim 8, which is characterized in that the cover plate main body includes two to inking
Area, described two ink areas to be coated are located at the lower surface of two ends other than the viewfinder area of the cover plate main body.
12. a kind of flexible display device, which is characterized in that the flexible display device includes bend glass cover board and flexible touch-control
Display module,
Transparent optical glue laminating is used between the bend glass cover board and the flexible touch control display module；
The bend glass cover board is using the bend glass cover board as described in claim 8-11 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499563.2A CN110288909A (en) | 2019-06-11 | 2019-06-11 | A kind of bend glass cover board and preparation method thereof, flexible display device |
| PCT/CN2019/122254 WO2020248532A1 (en) | 2019-06-11 | 2019-11-30 | Curved glass cover and fabrication method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499563.2A CN110288909A (en) | 2019-06-11 | 2019-06-11 | A kind of bend glass cover board and preparation method thereof, flexible display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110288909A true CN110288909A (en) | 2019-09-27 |
Family
ID=68003770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910499563.2A Pending CN110288909A (en) | 2019-06-11 | 2019-06-11 | A kind of bend glass cover board and preparation method thereof, flexible display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110288909A (en) |
| WO (1) | WO2020248532A1 (en) |
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| CN115064079A (en) * | 2022-07-08 | 2022-09-16 | 武汉华星光电半导体显示技术有限公司 | Curved surface display device and preparation method thereof |
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| WO2020248532A1 (en) | 2020-12-17 |
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