CN107065255A - Lid window and the display device for including lid window - Google Patents
Lid window and the display device for including lid window Download PDFInfo
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- CN107065255A CN107065255A CN201611178050.4A CN201611178050A CN107065255A CN 107065255 A CN107065255 A CN 107065255A CN 201611178050 A CN201611178050 A CN 201611178050A CN 107065255 A CN107065255 A CN 107065255A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- 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
-
- 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
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133331—Cover glasses
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
Abstract
There is provided a kind of lid window and include the display device of lid window.The lid window includes：First area；With the second area of the both sides positioned at the first area, wherein the first area has the rigidity different from the second area, and the rigidity of the interface zone between the first area and the second area is gradually changed.
Description
The cross reference of related application
This application claims on December 31st, 2015 the korean patent application No.10-2015-0191641 that South Korea submits with
And the korean patent application No.10-2016-0140217 rights and interests that on October 26th, 2016 submits, here cite it is all these specially
The full content of profit application is used as reference.
Technical field
Present disclosure is related to a kind of display device, more particularly to a kind of lid window (cover with outstanding optical characteristics
Window) and the display device of lid window is included.
Background technology
With the development of Display Technique, such as liquid crystal display (LCD) device and organic light emitting display (OLED) device etc
Display device be used for computer monitor, TV, mobile phone and smart machine.
Display device may include display panel and glass cover.Glass cover can be formed by safety glass, so that display panel quilt
Lid window is protected.
In general, glass cover and display panel are fitted by direct joint method.In direct joint method, glass
Glass lid and display panel are fitted using optical clear resin (OCR) or optically clear adhesive (OCA).
Fig. 1 is the schematic cross sectional view of the display device of correlation technique.
As shown in fig. 1, display device 1 include display panel 10, the glass cover 30 positioned at the top of display panel 10 and
Adhesive phase 20 between display panel 10 and glass cover 30.Adhesive phase 20 can be OCA or OCR.
Recently, demand is a kind of can carry out the display device of touch operation.In addition, demand is a kind of flexible and/or flexible
Foldable display device.As a result, the lid window formed by plastics is used instead of glass cover 30.
Fig. 2 is schematic diagram of the diagram for the lid window of foldable display device.
As shown in Figure 2, lid window 30 includes soft zone domain 34 and the hard area domain 32a adjacent with soft zone domain 34 and 32b.Soft zone
Domain 34 is formed by the soft material of such as polyether polyols etc, and hard area domain 32a and 32b are by such as polymethyl methacrylate
Or the hard material of makrolon (PC) etc is formed (PMMA).Because the material in soft zone domain 34 and hard area domain 32a and 32b material
Material has difference in terms of modulus properties, so lid window 30 can be folded relative to soft zone domain 34.
As one of multicomponent injection moulding method, lid window 30 can be manufactured by double injection forming method.Soft material is filled out
Fill in a mold and by keeping pressure to be injected.Then, hard material is adjacent to filling in a mold with soft material and passed through
Pressure is kept to be injected.As a result, it is possible to provide the foldable lid window 30 including soft zone domain 34 and hard area domain 32a and 32b.
Higher optical characteristics is required in the lid window 30 for display device.However, when lid window 30 be used for it is foldable
During display device, interface 36a and 36b between each of soft zone domain 34 and hard area domain 32a and 32b are seen.
The content of the invention
Therefore, the present invention is intended to provide one caused by a kind of limitation substantially overcomed due to correlation technique and shortcoming
The lid window of individual or multiple problems and include the display device of lid window.
The supplementary features and advantage of the present invention will be listed in the following description, and a part for these feature and advantage passes through
The description will be apparent, or can be understood by the implementation of the present invention.Pass through specification, claims and attached
Object of the present invention and other advantages can be realized and obtained to the structure specifically noted in figure.
In order to realize these and other advantages and according to the intent of the present invention, such as embodied and be broadly described herein,
A kind of lid window includes：First area；With the second area of the both sides positioned at the first area, wherein the first area has
Different from the interface zone between the rigidity of the second area, and the first area and the second area rigidity by
Gradual change.
In another aspect, a kind of lid window includes：First area；With the secondth area of the both sides positioned at the first area
Domain, wherein the first area has the rigidity different from the second area, and the first area, secondth area
The configuration of surface of domain and the interface zone between the first area and the second area is different.
In a further aspect, a kind of display device includes：Display panel；With at the surface of the display panel
Lid window, the lid window includes the second area of first area and the both sides positioned at the first area, wherein firstth area
Domain has the rigidity different from the second area, and interface zone between the first area and the second area
Rigidity is gradually changed.
In another aspect, a kind of display device includes：Display panel, the display panel includes preceding surface and the
One side surface and the second side surface；With lid window, the lid window include respectively with first side surface and second side surface
Corresponding first area and second area and the 3rd region corresponding with the preceding surface, wherein the 3rd region have it is big
In the first area and the rigidity of the second area.
It should be appreciated that the description of substantially property and following detailed description above is all exemplary and explanatory, it is intended to
Further explanation is provided to claimed theme.
Brief description of the drawings
The accompanying drawing for being further understood to present invention offer and being incorporated herein middle composition the application part illustrates reality
Mode is applied, and for explaining principle of the invention together with specification.
Fig. 1 is the schematic cross sectional view of the display device of correlation technique.
Fig. 2 is schematic diagram of the diagram for the lid window of foldable display device.
Fig. 3 A to 3C are the schematic diagrames for illustrating the lid window according to first embodiment of the invention respectively.
Fig. 4 is schematic diagram of the diagram for the copolymer of the lid window according to first embodiment of the invention.
Fig. 5 A and 5B are the schematic cross section for the display device for including the lid window according to first embodiment of the invention respectively
Figure.
Fig. 6 is the schematic cross sectional view of liquid crystal panel.
Fig. 7 is the schematic cross sectional view of organic LED panel.
Fig. 8 A and 8B are the schematic plan view and schematic cross section of the lid window according to second embodiment of the invention respectively
Figure.
Fig. 9 is the picture for the configuration of surface for showing the copolymer for the lid window according to the present invention.
Figure 10 is the chart for the refractive index for showing the copolymer for the lid window according to the present invention.
Figure 11 is the schematic cross sectional view for the display device for including the lid window according to third embodiment of the invention.
Figure 12 is the schematic plan view of the lid window according to third embodiment of the invention.
Figure 13 is the schematic cross sectional view for the display device for including the lid window according to four embodiment of the invention.
Embodiment
It is described now with detailed reference to embodiment, some examples of these embodiments is illustrated in accompanying drawing.
Fig. 3 A to 3C are the schematic diagrames for illustrating the lid window according to first embodiment of the invention respectively, and Fig. 4 is that diagram is used for
According to the schematic diagram of the copolymer of the lid window of first embodiment of the invention.
As shown in Fig. 3 A to 3C and Fig. 4, first area 410 is included according to the lid window 400 of first embodiment of the invention
And second area 420a and 420b adjacent with first area 410 and positioned at the both sides of first area 410.
In lid window 400, definition has fold domain FR.For fold domain FR in X direction, along perpendicular to X
The two ends of the Y-direction in direction are folded along perpendicular to the direction of lid window 400.
Fig. 3 A show fold domain FR in X direction, i.e. the short axle extension of lid window 400.Selectively, fold domain FR can
Extend along the major axis of Y-direction, i.e. lid window 400.
First area 410 corresponds to fold domain FR, and second area 420a and 420b correspond to fold domain FR two
The includes non-collapsible region of side.Each of first area 410 and second area 420a and 420b include block copolymer
(blocked-copolymer).Block copolymer includes high rigidity (stiffness) unit and Low rigidity unit.In other words,
The high rigidity unit and Low rigidity unit of block copolymer also exist in first area 410 and second area 420a and 420b
In.
However, the molar fraction (mole fraction) of the Low rigidity unit in first area 410 is more than second area
The molar fraction of Low rigidity unit in each of 420a and 420b.That is, the block copolymer tool in first area 410
There is a molar fraction of the Low rigidity unit more of a relatively high than block copolymer in second area 420a and 420b, and second area
Block copolymer in 420a and 420b has the high rigidity unit more of a relatively high than block copolymer in first area 410
Molar fraction.Therefore, first area 410 has the modulus value of each less than second area 420a and 420b, so that first
Serve as fold domain FR in region 410.
For example, the Low rigidity unit of block copolymer can be the list of the polymer selected from the set for including materials described below
Member：Polyurethane (PU), butyl polyacrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer.This
Outside, the high rigidity unit of block copolymer can be the unit of the polymer selected from the set for including materials described below：Poly- methyl-prop
E pioic acid methyl ester (PMMA), makrolon (PC) and their copolymer.Low rigidity unit and high rigidity unit can be with block figures
Case is arranged.
Block copolymer for first area 410 and second area 420a and 420b may include have in terms of rigidity
The different units of difference.In first area 410, the molar percentage of Low rigidity unit is more than the Mole percent of high rigidity unit
Than.In second area is hard area domain 420a and 420b, the molar percentage of high rigidity unit is more than mole of Low rigidity unit
Percentage.
For example, the block copolymer for first area 410 and second area 420a and 420b can be represented by formula 1.
[formula 1]
In formula 1, " A " can be the unit of the polymer selected from the set for including materials described below：It is polyurethane (PU), poly-
Butyl acrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer, " B " can be under including
State the unit of the polymer of the set of material：Polymethyl methacrylate (PMMA), makrolon (PC) and their copolymerization
Thing.In addition " m " and " n " is " A " and " B " molar fraction respectively, and " m " and " n " sum is one (1) (m+n=1).
In first area 410, " m " is more than " n ".In each of second area 420a and 420b, " m " is less than " n ".
On the other hand, the block copolymer for first area 410 can be represented by formula 2, for second area 420a and
420b block copolymer can be represented by formula 3.
[formula 2]
[formula 3]
In formula 2 and 3, " A " can be the unit of the polymer selected from the set for including materials described below：Polyurethane
(PU), butyl polyacrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer, " B " can be selected from
The unit of the polymer of set including materials described below：Polymethyl methacrylate (PMMA), makrolon (PC) and they
Copolymer.In formula 2, " m1 " and " n1 " is " A " and " B " molar fraction respectively, and " m1 " and " n1 " sum is one (1)
(m1+n1=1).In formula 3, " m2 " and " n2 " is " A " and " B " molar fraction respectively, and " m2 " and " n2 " sum is one (1)
(m2+n2=1).
In this case, " m1 " is more than " m2 ", and " n1 " is less than " n2 " (m1>M2, n1<n2).
For example, " m1 " can be about 0.6 to 0.95, " n1 " can be about 0.05 to 0.4.In addition, " m2 " can be about
0.05 to 0.4, " n2 " can be about 0.6 to 0.95.
In the lid window 400 of the present invention, for first area 410 and second area 420a and 420b Low rigidity unit
There are different contents with high rigidity unit so that first area 410 and second area 420a and 420b are in terms of modulus value
With difference.That is, in block copolymer, when content (that is, the molar percentage) increase of Low rigidity unit, block is common
The modulus value of polymers reduces.On the other hand, when the content increase of high rigidity unit, the modulus value increase of block copolymer.The
Interface zone 430a and 430b between each of one region 410 and second area 420a and 420b can have first area
410 and second area 420a and 420b each between modulus value.
The of a relatively high first area 410 of the molar fraction of Low rigidity unit wherein in block copolymer, wherein block
The molar fraction of high rigidity unit in copolymer of a relatively high second area 420a and 420b and interface zone 430a and
430b has difference in terms of configuration of surface (surface morphology).
The flexible increase of first area 410 so that first area 410 has outstanding impact property.Second area
420a and 420b have outstanding hardness and anti-zoned Flaw characterization and excellent rigidity.In other words, second area 420a and
420b has the rigidity and hardness more than first area 410.For example, second area 420a and 420b rigidity are about the firstth area
2.5 to 7 times of domain 410.The hardness (for example, pencil hardness) of first area 410 is 4B to 6B grades, second area 420a and
420b hardness is more than H grades.
One that interface zone 430a and 430b rigidity and/or hardness can be gradually changed for example from first area 410 is lateral
The side for second area 420a and 420b becomes larger.
Because mole for the Low rigidity unit in the block copolymer of first area 410 corresponding with fold domain FR
Percentage is more than the molar percentage of the Low rigidity unit in the block copolymer for second area 420a and 420b, so the
One region 410 has the modulus value less than second area 420a and 420b.
Therefore, as shown in FIG. 3 C, in fold domain FR, i.e., folding operation is provided in first area 410, lid window 400 is total
There is sufficient or desired modulus value on body.
To form lid window (it is not that block is total to when the polymer of Low rigidity unit and another mixed with polymers of high rigidity unit
Polymers type) when, it is very difficult to equably mix both polymer, it is possible to create phase separation (phase separation) is asked
Topic.As a result, the display quality of the display device of the lid window including by both polymer formed declines.However, in the present invention,
Because lid window is formed by the block copolymer including Low rigidity unit and high rigidity unit, the problem of will not producing above.
In first area 410 and second area 420a and 420b block copolymer, (formula 1) Low rigidity unit
The content of A and (formula 1) high rigidity unit B has differences.However, first area 410 and second area 420a and 420b
Block copolymer be of identical composition, i.e. Low rigidity unit and high rigidity unit.Therefore, first area 410, second area
420a and 420b and interface zone 430a and 430b have essentially identical refractive index.
Although first area 410 and second area 420a and 420b have difference in terms of modulus value, light will not be
Reflected at interface zone 430a and 430b between each of first area 410 and second area 420a and 420b, because the
Refringence is not present between one region 410 and second area 420a and 420b.
To form lid window (it is not that block is total to when the polymer of Low rigidity unit and another mixed with polymers of high rigidity unit
Polymers type) when, according to the ratio of both polymer, refringence may be present.
As described above, because of the interface zone between each of first area 410 and second area 420a and 420b
Anaclasis is not present at 430a and 430b, so not can be appreciated that interface zone 430a and 430b so that display device have it is excellent
Outward appearance.
The first area 410 of lid window and second area 420a and 420b are by including Low rigidity unit and high rigidity unit
Block copolymer is formed.The Low rigidity unit of block copolymer can be the list of the polymer selected from the set for including materials described below
Member：Polyurethane (PU), butyl polyacrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer.This
Outside, the high rigidity unit of block copolymer can be the unit of the polymer selected from the set for including materials described below：Poly- methyl-prop
E pioic acid methyl ester (PMMA), makrolon (PC) and their copolymer.
After the material of Low rigidity unit and the material of high rigidity unit are injected into the space between two glass,
Executable glass case or glass cell casting technique (glass cell casting process), to form lid window.
In more detail, the material (for example, butyl acrylate) of Low rigidity unit and high rigidity unit material (for example,
Polymethyl methacrylate) it is injected into different contents (amount) in the space of two glass.For example, in first area 410
In, the material of Low rigidity unit is more more than the material injection of high rigidity unit.In second area 420a and 420b, high rigidity list
The material of member is more more than the material injection of Low rigidity unit.Two glass are transferred in baking box, with produce Low rigidity unit and
The polymerisation of high rigidity unit.After polymerisation is completed, two glass are stripped (release), so as to provide including low
The second area 420 and 420b vinyl cover of the first area 410 of rigidity and/or soft and high rigidity and/or high rigidity
Window 400.
Fig. 5 A and 5B are the schematic cross section for the display device for including the lid window according to first embodiment of the invention respectively
Figure.
As shown in Figure 5 A, display panel 200 is included, positioned at display as the display device 100 of foldable display device
Lid window 400 above the side of panel 200 and the adhesive phase between display panel 200 and lid window 400 300.Display
Panel 200 can be liquid crystal panel or organic LED panel.However it is not limited to this.
Lid window includes first area 410 and the second area 420a and 420b positioned at the both sides of first area 410.Firstth area
Domain 410 and second area 420a and 420b include the identical component of Low rigidity unit and high rigidity unit with different content
Block copolymer.The top hard conating 452 of reinforcing or protection cap window 400 can be provided in the upper side and lower side of lid window 400
With bottom hard conating 454.
Generally, because lid window 400 may be provided at the uppermost position of display device 100, so in lid window 400
Anti scuffing (or abrasion) characteristic and/or impact property are required, to prevent such as damage of scuffing etc caused by touching
It is bad.Therefore, the first hard formation 452 of the gravity die material for being used for providing high rigidity is formed respectively on the upper side and lower side of lid window 400
With the second hard formation 454.For example, can be by using polyurethane acrylate resin, methacrylate resin and silsesquioxane
(silsesquioxane) each of one of compound the first hard formation 452 of formation and the second hard formation 454.The He of first hard formation 452
One of method of roll coating, spin coating method, dip-coating method, flow coating processes and spraying method can be used to apply for each of second hard formation 454
Cloth is on lid window.
Adhesive phase 300 between display panel 200 and lid window 400 can be optical clear resin (OCA).For example, viscous
Mixture layer 300 can be formed by one of materials described below：Acrylate, (methyl) acrylate, silicone resin, rubber
Resin and polyurethane resin.Lid window 400 is fitted or adhered to display panel 200 by adhesive phase 300.
Reference picture 5B, includes display panel 200, lid window 400 as the display device 100 ' of foldable display device, is located at
Touch panel 290 (it can be described as touch panel) between display panel 200 and lid window 400 and positioned at touch panel 290
Adhesive phase 300 between lid window 400.In figure 5b, touch panel 290 is arranged on display panel 200.That is, figure
Outer hung type (add-on type) touch panel 290 is shown in 5B.Selectively, touch panel 290 may be provided at display panel
In 200, so as to provide the interior insert-type touch display unit of such as additive type (on-cell) or integrated-type (in-cell) etc.
Reference picture 6, Fig. 6 is the schematic cross sectional view of liquid crystal panel, is used as the liquid of (Fig. 5 A or Fig. 5 B's) display panel 200
Crystal panel 200 is including first substrate 201 and second substrate 202 facing with each other and positioned at first substrate 201 and second substrate
Liquid crystal layer 230 between 202.
Each of first substrate 201 and second substrate 202 are flexible.For example, first substrate 201 and second substrate
Each of 202 can be polyimide plastic substrate.On first substrate 201, at least one electrode and at least one are formed with
Signal line.
On first substrate 201, a plurality of gate line (not shown) is extended in a first direction, a plurality of data lines 270 along second
Direction extends.Gate line and data wire 270 are intersected with each other, to limit multiple pixel region P.In the non-display of first substrate 201
In region, it is formed with the gate pads of the one end for being connected to gate line and is connected to the data pads of one end of data wire 270.
Being formed with thin film transistor (TFT) (TFT) Tr, TFT Tr in each pixel region P includes gate electrode 262, gate insulator
Layer 263, semiconductor layer 266, source electrode 272 and drain electrode 274.
Gate electrode 262 is connected to gate line and formed on first substrate 201.By such as Si oxide (SiOx) or
The gate insulator 263 of the inorganic insulating material formation of silicon nitride (SiNx) etc is formed as covering gate line and gate electrode
262。
Semiconductor layer 266 forms on gate insulator 263 and corresponding with gate electrode 262.Semiconductor layer 266 includes
The active layer 266a of intrinsic amorphous silicon and non-crystalline silicon doped with impurity ohmic contact layer 266b.
Source electrode 272 and drain electrode 274 form on semiconductor layer 266 and separated from one another.Source electrode 272
It is connected to the data wire 270 on gate insulator 263.As a result, TFT Tr are electrically connected to gate line and data wire 270.TFT Tr
In the TrA of switch region.
Although not shown, it can form parallel with one of gate line and data wire 270 above first substrate 201
Common wire.
Cover TFT Tr and data wire 270 and the first passivation layer 264 including drain contact hole 275 is formed in the first base
The top of plate 201.The exposure TFT of drain contact hole 275 Tr drain electrode 274.First passivation layer 264 can be Si oxide or
The inorganic insulation layer of silicon nitride or the organic insulator of optics acryl (photo-acryl).First passivation layer 264 is being formed
Active layer 266a and/or ohmic contact layer 266b is protected in the step of pixel electrode 276.
Pixel electrode 276 is formed on the first passivation layer 264.Pixel electrode 276 is connected to TFT Tr drain electrode 274
And there is tabular in each pixel region P.Pixel electrode 276 can be by such as tin indium oxide (ITO) or indium zinc oxide (IZO)
Etc transparent conductive material formed.
Although not shown, formed on the first passivation layer 264 that can be in non-display area by identical with pixel electrode 276
Material formation gate pad electrode and data pad electrode.Gate pad electrode is electrically connected to by gate pads contact hole
Gate pads, and data pads electrode is electrically connected to data pads by data pads contact hole.
The second passivation layer 280 is formed to cover pixel electrode 276.Second passivation layer 280 can be Si oxide or silicon nitrogen
The inorganic insulation layer of compound or the organic insulator of optics acryl.
Public electrode 290 is formed on the second passivation layer 280.Public electrode 290 has the hole corresponding to pixel electrode 276
(or opening) 292.Public electrode 290 can be formed by such as ITO or IZO etc transparent conductive material.The public electrode of tabular
290 can have the shape of single one (single integral) in the viewing area including multiple pixel region P.Pixel
Electrode 276 and public electrode 290 produce fringing field, to drive the liquid crystal molecule in liquid crystal layer 230.As a result, in liquid crystal panel 200
In, improve efficiency of transmission and show high quality graphic.
Although not shown, below second substrate 202 (it can be described as filter substrate), it is formed with as shading element
Black matrix with lattice shape corresponding with pixel region P and color-filter layer corresponding with pixel region P.Color-filter layer
It may include red color filter, green color filter and blue color filter.In addition, can further be formed on color-filter layer as flat
Change the coat of layer.Coat can be formed by polyimides, polyacrylate or polyurethane.
First polarization plates 210 are fitted on the outside of second substrate 202.Although not shown, the second polarization plates are attached to
On the outside of first substrate 201.First polarization plates 210 and the second polarization plates can have polarization axle perpendicular to one another.
Back light unit (not shown) including light source is arranged on the lower section of liquid crystal panel 200, to be provided to liquid crystal panel 200
Light.
(Fig. 5 A's) adhesive phase 300 is located at the first polarization plates 210 and (Fig. 5 A's) lid of the outside of second substrate 202
Between window 400, with liquid crystal panel 200 and the lid window 400 of fitting.
Reference picture 7, Fig. 7 is the schematic cross sectional view of organic LED panel, is used as (Fig. 5 A and Fig. 5 B's) display
The organic LED panel 500 of panel 200 includes flexible base board 501 and the light-emitting diodes positioned at the top of flexible base board 501
Pipe E.
Flexible base board 501 can be polyimide plastic substrate.Flexible base board 501 is unsuitable for organic LED panel
The manufacturing process of 500 element.Therefore, in the case where flexible base board 501 is fitted on carrier substrate, such as glass substrate,
The element of organic LED panel 500, such as TFT Tr or light emitting diode can be formed above flexible base board 501
E.Then, flexible base board 501 is separated or discharged from carrier substrate, so as to provide organic LED panel 500.
Cushion 510 is formed on flexible base board 501, and TFT Tr formation is on cushion 510.Cushion can be omitted
510。
Semiconductor layer 522 is formed on cushion 510.Semiconductor layer 522 may include oxide semiconductor material or polycrystalline
Silicon.
, can be in the light-shielding pattern formed below of semiconductor layer 522 when semiconductor layer 522 includes oxide semiconductor material
(not shown).The light for inciding semiconductor layer 522 is blocked pattern masking or stopped, so as to prevent semiconductor layer 522
Heat deterioration.On the other hand, when semiconductor layer 522 includes polysilicon, impurity can be mixed to the both sides of semiconductor layer 522.
Gate insulator 524 is formed on semiconductor layer 522.Gate insulator 524 can be by such as Si oxide or silicon nitrogen
The inorganic insulating material of compound etc is formed.
By conductive material, the center of such as gate electrode 530 and semiconductor layer 522 of metal formation is correspondingly formed on grid
On pole insulating barrier 524.
In the figure 7, gate insulator 524 is formed in the whole surface of flexible base board 501.Selectively, gate insulator
Layer 524 can be patterned as having and the identical shape of gate electrode 530.
The interlayer insulating film 532 formed by insulating materials is formed in the whole of the flexible base board 501 including gate electrode 530
On surface.Interlayer insulating film 532 can by inorganic insulating material, such as Si oxide or silicon nitride, or organic insulation,
Such as benzocyclobutene or optics acryl are formed.
Interlayer insulating film 532 includes the first contact hole 534 and the second contact hole 536 of the both sides of exposed semiconductor layer 522.
First contact hole 534 and the second contact hole 536 are located at the both sides of gate electrode 530 and separated with gate electrode 530.
In the figure 7, the first contact hole 534 and the second contact hole 536 are extended in gate insulator 524.Selectively, when
When gate insulator 524 is patterned as having with 530 identical shape of gate electrode, can not have in gate insulator 524
There are the first contact hole 534 and the second contact hole 536.
By conductive material, the source electrode 540 and drain electrode 542 of such as metal formation are formed in interlayer insulating film 532
On.Source electrode 540 and drain electrode 542 are separated from one another relative to gate electrode 530 and pass through the first contact hole respectively
534 and second contact hole 536 and semiconductor layer 522 two side contacts.
Semiconductor layer 522, gate electrode 530, source electrode 540 and the composition of drain electrode 542 TFT Tr, TFT Tr are served as
Driving element.
In the figure 7, gate electrode 530, source electrode 540 and drain electrode 542 are located at the top of semiconductor layer 522.It is exactly
Say, TFT Tr have coplanar structure.
Selectively, in TFT Tr, gate electrode can be located at below semiconductor layer, and source electrode and drain electrode
Semiconductor layer can be located at, so that TFT Tr there can be reverse stagger structure.In this case, semiconductor layer may include amorphous
Silicon.
Although not shown, gate line and data wire are arranged on above substrate 501 and intersected with each other to limit picture
Plain region.In addition, the switch element for being electrically connected to gate line and data wire can be set on flexible base board 501.Switch element electricity
It is connected to the TFT Tr for serving as driving element.
In addition, power supply that is parallel with gate line or data wire and separating can be formed above flexible base board 501
Line.In addition, storage can further be formed on flexible base board 501, storage is used to keep TFT during a frame
The voltage of Tr gate electrode 530.
Passivation layer 550 is formed to cover TFT Tr, passivation layer 550 includes the drain electrode of exposure TFT Tr drain electrode 542
Contact hole 552.
The first electrode 560 that TFT Tr drain electrode 542 is connected to by drain contact hole 552 is separately formed at often
On passivation layer 550 in individual pixel region P.First electrode 560 can be anode and can be by with of a relatively high work function
Conductive material is formed.For example, first electrode 560 can be led by the transparent of such as tin indium oxide (ITO) or indium zinc oxide (IZO) etc
Electric material is formed.
The dike layer 566 for covering the edge of first electrode 560 is formed on passivation layer 550.First electrode in pixel region
560 middle part is exposed by the opening of dike layer 566.
Organic luminous layer 562 is formed in first electrode 560.Organic luminous layer 562 can have what is formed by luminescent material
The single layer structure of luminous material layer.Selectively, in order to improve luminous efficiency, organic luminous layer 562 can have sandwich construction, should
Sandwich construction includes hole injection layer, hole transmission layer, luminous material layer, the electronics being layered in order in first electrode 560
Transport layer and electron injecting layer.
Second electrode 564 is formed in the top of flexible base board 501 including organic luminous layer 562.Second electrode 564 is located at aobvious
Show at the whole surface in region.Second electrode 564 can be negative electrode and can be by the conductive material with relatively low work function
Formed.For example, second electrode 564 can be formed by aluminium (Al), magnesium (Mg) or Al-Mg alloys.
First electrode 560, organic luminous layer 562 and the composition light emitting diode of second electrode 564 E.
Encapsulating film 570 is formed on light emitting diode E, to prevent moisture infiltration into light emitting diode E.
Encapsulating film 570 can have the first inorganic layer 572, the three-decker of the inorganic layer 576 of organic layer 574 and second.However,
It is not limited to this.
Polarization plates (not shown) may be provided on encapsulating film 570, to reduce reflection of ambient light.Polarization plates can be circular polarization
Film.
Reference picture 5A, lid window 400 is arranged on the top of display panel 200 and fits to display surface by adhesive phase 300
On plate 200.Lid window 400 includes first area 410 and the second area 420a and 420b positioned at the both sides of first area 410.
In lid window 400, definition has fold domain FR.Relative to fold domain FR in X direction, along perpendicular to X-direction
Y-direction two ends along perpendicular to the direction of lid window 400 fold.First area 410 corresponds to fold domain FR, second area
420a and 420b correspond to the includes non-collapsible region of fold domain FR both sides.
Each of first area 410 and second area 420a and 420b include block copolymer.Block copolymer bag
Include high rigidity unit and Low rigidity unit.For example, block copolymer can be represented by formula 1 to 3 above.
In first area 410, Low rigidity unit has of a relatively high molar fraction.In second area 420a and 420b
In, high rigidity unit has of a relatively high molar fraction.First area 410 has every less than second area 420a and 420b
The modulus value of one so that serve as fold domain FR in first area 410.Therefore, in the foldable display device including lid window 400
The reduction damaged caused by folding operation with image quality is prevented in 100 (or 100 ').
Although first area 410 and second area 420a and 420b have difference in terms of modulus value, light will not be
Reflected at interface zone 430a and 430b between each of first area 410 and second area 420a and 420b, because the
Refringence is not present between one region 410 and second area 420a and 420b.Therefore, not can be appreciated that interface zone 430a and
430b, so that display device 100 (or 100 ') has excellent outward appearance.
Fig. 8 A and 8B are the schematic plan view and schematic cross section of the lid window according to second embodiment of the invention respectively
Figure.
As shown in Figure 8A and 8B, in the lid window 400 ' according to second embodiment of the invention, definition has first to the
Three fold domain FR1, FR2 and FR3.
Relative to first in X direction to the 3rd fold domain FR1 to FR3, along the two ends of the Y-direction perpendicular to X-direction
Folded along perpendicular to the direction of lid window 400 '.
Fig. 8 A show the first to the 3rd fold domain FR1 to FR3 in X direction, i.e. the short axle extension of lid window 400 '.It is optional
Ground is selected, the first to the 3rd fold domain FR1 to FR3 can be along Y-direction, i.e. the major axis extension of lid window 400 '.
Lid window 400 ' includes first area 412, the second area 422 and 424 positioned at the both sides of first area 412, positioned at the
3rd region 426 and 428 in the outside of two region 422 and 424 and each and the 3rd area positioned at second area 422 and 424
The 4th region 414 and 416 between each of domain 426 and 428.The region 414 and 416 of first area 412 and the 4th is embedding
There is the molar fraction of of a relatively high Low rigidity unit, second area 422 and 424 and the 3rd region 426 in section copolymer
With 428 molar fractions in block copolymer with of a relatively high high rigidity unit.The region of first area 412 and the 4th
414 and 416, second area 422 and 424 and the 3rd region 426 and 428 be alternately arranged.
The region 414 and 416 of first area 412 and the 4th corresponds to the first to the 3rd fold domain FR1 to FR3, second
Region 422 and 424 and the 3rd region 426 and 428 correspond to each of first area 412 and the 4th region 414 and 416
Includes non-collapsible region between individual and positioned at the outside of the 4th region 414 and 416.
First to the 4th region 412,422,424,426,428,414 and 416 includes block copolymer.Block copolymer bag
Include high rigidity unit and Low rigidity unit.In other words, the high rigidity unit and Low rigidity unit of block copolymer are equally existed
In the first to the 4th region 412,422,424,426,428,414 and 416.
The molar fraction of Low rigidity unit in the region 414 and 416 of first area 412 and the 4th is more than second area
422 and 424 and the 3rd region 426 and 428 each in Low rigidity unit molar fraction.That is, first area
412 and the 4th block copolymer in region 414 and 416 have than second area 422 and 424 and the He of the 3rd region 426
The molar fraction of the of a relatively high Low rigidity unit of block copolymer in 428, and second area 422 and 424 and the 3rd area
Block copolymer in domain 426 and 428 has than the block copolymer phase in the region 414 and 416 of first area 412 and the 4th
To the molar fraction of higher high rigidity unit.Therefore, each of the region 414 and 416 of first area 412 and the 4th has
Less than second area 422 and 424 and the modulus value of each in the 3rd region 426 and 428 so that first area 412 and
Serve as the first to the 3rd fold domain FR1 to FR3 in 4th region 414 and 416.
3rd region 426 and 428 can have the rigidity or hardness higher than the 4th region 414 and 416.The He of 3rd region 426
428 rigidity or hardness can be equal to or more than the rigidity or hardness of second area 422 and 424.In addition, the 4th region 414 and 416
Rigidity or hardness can be equal to or more than first area 412 rigidity or hardness.
For example, the Low rigidity unit of block copolymer can be the list of the polymer selected from the set for including materials described below
Member：Polyurethane (PU), butyl polyacrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer.This
Outside, the high rigidity unit of block copolymer can be the unit of the polymer selected from the set for including materials described below：Poly- methyl-prop
E pioic acid methyl ester (PMMA), makrolon (PC) and their copolymer.Low rigidity unit and high rigidity unit can be with block figures
Case is arranged.
For example, the block copolymer for the first to the 4th region 412,422,424,426,428,414 and 416 can be by formula
Son 4 is represented.
[formula 4]
In formula 4, " A " can be the unit of the polymer selected from the set for including materials described below：It is polyurethane (PU), poly-
Butyl acrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer, " B " can be under including
State the unit of the polymer of the set of material：Polymethyl methacrylate (PMMA), makrolon (PC) and their copolymerization
Thing.In addition " m " and " n " is " A " and " B " molar fraction respectively, and " m " and " n " sum is one (1) (m+n=1).
In the region 414 and 416 of first area 412 and the 4th, " m " is more than " n ".In second area 422 and 424 and
In 3rd region 426 and 428, " m " is less than " n ".
On the other hand, the block copolymer for the region 414 and 416 of first area 412 and the 4th can be by the table of formula 5
Show, the block copolymer for second area 422 and 424 and the 3rd region 426 and 428 can be represented by formula 6.
[formula 5]
[formula 6]
In formula 5 and 6, " A " can be the unit of the polymer selected from the set for including materials described below：Polyurethane
(PU), butyl polyacrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer, " B " can be selected from
The unit of the polymer of set including materials described below：Polymethyl methacrylate (PMMA), makrolon (PC) and they
Copolymer.In formula 5, " m1 " and " n1 " is " A " and " B " molar fraction respectively, and " m1 " and " n1 " sum is one (1)
(m1+n1=1).In formula 6, " m2 " and " n2 " is " A " and " B " molar fraction respectively, and " m2 " and " n2 " sum is one (1)
(m2+n2=1).
In this case, " m1 " is more than " m2 ", and " n1 " is less than " n2 " (m1>M2, n1<n2).
For example, " m1 " can be about 0.6 to 0.95, " n1 " can be about 0.05 to 0.4.In addition, " m2 " can be about
0.05 to 0.4, " n2 " can be about 0.6 to 0.95.
In each of the region 414 and 416 of first area 412 and the 4th, the molar fraction of Low rigidity unit is relative
It is higher.In each of second area 422 and 424 and the 3rd region 426 and 428, the molar fraction phase of high rigidity unit
To higher.Therefore, the region 414 and 416 of first area 412 and the 4th, which has, is less than second area 422 and 424 and the 3rd area
The modulus value in domain 426 and 428.
In the lid window 400 ' of the present invention, for the region 414 of first area 412 and the 4th and 416, second area 422
With 424 and the 3rd region 426 and 428 Low rigidity unit and high rigidity unit there are different contents so that first area
412 and the 4th region 414 and 416, second area 422 and 424 and the modulus value in the 3rd region 426 and 428 controlled.Just
It is to say, in block copolymer, when content (that is, the molar percentage) increase of Low rigidity unit, the modulus of block copolymer
Value reduces.On the other hand, when the content increase of high rigidity unit, the modulus value increase of block copolymer.First area 412 with
And the 4th region 414 and 416 flexible increase so that the region 414 and 416 of first area 412 and the 4th has outstanding anti-
Impact characteristics.Second area 422 and 424 and the 3rd region 426 and 428 have outstanding hardness and anti-zoned Flaw characterization and excellent
Good rigidity.
In the region 414 and 416 of first area 412 and the 4th, the molar fraction of Low rigidity unit and high rigidity unit
It may be the same or different.In other words, the rigidity or hardness in the 4th region 414 and 416 can be more than or equal to first area 412.Example
Such as, because stress concentration is folded in the first area 412 of the center positioned at lid window 400 ', in first area 412
The molar fraction of Low rigidity unit can be more than the molar fraction of the Low rigidity unit in the 4th region 414 and 416.That is, the
The modulus value in four regions 414 and 416 can be more than first area 412 and less than second area 422 and 424 and the 3rd region 426
With 428.
Second area 422 and 424 and the 3rd region 426 and 428 can have identical or different modulus value.For example, the
The ratio of the Low rigidity unit of block copolymer can be more than block copolymerization in the 3rd region 426 and 428 in two regions 422 and 424
The ratio of the Low rigidity unit of thing.That is, the modulus value in the 3rd region 426 and 428 can be more than second area 422 and 424
Modulus value.In other words, the rigidity and/or hardness in the 3rd region 426 and 428 can be more than or equal to second area 422 and 424
Rigidity and/or hardness.
As described above, because first area 412 corresponding with first to the 3rd fold domain FR1, FR2 and FR3 and the
The molar fraction of the Low rigidity unit of block copolymer in four regions 414 and 416 is more than second area 422 and 424 and the
The molar fraction of the Low rigidity unit of block copolymer in three regions 426 and 428, so the area of first area 412 and the 4th
Domain 414 and 416 has the modulus value less than second area 422 and 424 and the 3rd region 426 and 428.
Because lid window 400 ' generally have desired modulus value and with first to the 3rd fold domain FR1, FR2 and
The corresponding regions 414 and 416 of first area 412 and the 4th of FR3 have relatively low modulus value, so lid window 400 ' can
Relative to first to the 3rd fold domain FR1, FR2 and FR3, i.e., the region 414 and 416 of first area 412 and the 4th is folded.This
Outside, in the present invention, because lid window 400 ' is formed by the block copolymer including Low rigidity unit and high rigidity unit, institute to prevent
Non-uniform mixing problem and problem of phase separation are stopped.
The region 414 of first area 412 and the 4th and 416, second area 422 and 424 and the 3rd region 426 and 428
Block copolymer be of identical composition, i.e. Low rigidity unit and high rigidity unit.Although Low rigidity unit and high rigidity list
The content of member has differences, but the first to the 4th region 412,422,424,426,428,414 and 416 includes having same unit
The block copolymer of (composition).Therefore, the first to the 4th region 412,422,424,426,428,414 and 416 has basic phase
Same refractive index.
Because in the region 414 and 416 of first area 412 and the 4th and second area 422 and 424 and the 3rd region
Anaclasis is not present at interface zone between 426 and 428, so not can be appreciated that interface zone.In addition, because image is not abnormal
Become, so display device has excellent outward appearance.
Foldable display device is used for according to the lid window 400 ' of second embodiment of the invention.That is, such as on Fig. 5 A,
Described in 5B, 6 and 7, lid window 400 ' is arranged on display panel 200, such as liquid crystal panel 200 or organic LED panel 500
Surface, so as to provide foldable display device 100 or 100 '.
The ratio of high rigidity unit (PMMA) and Low rigidity unit (PBA) has discrepant lid window
The unit of PMMA (refractive index=1.49) with different proportion and PBA (refractive index=1.46) unit are injected into
Into the space between two glass, and mixture is polymerize, to form lid window.
As shown in Figure 9, when PMMA unit has 80% molar fraction, thin slice is observed in block copolymer
(Lamellar) of shape is separated.Laminar phase separation is the characteristic shown in high rigidity (or hard) polymer.The opposing party
Face, when PMMA unit has 20% molar fraction, observes that spherical (Sphere) is separated in block copolymer.
Spherical phase separation is the characteristic shown in Low rigidity (or soft) polymer.That is, utilize Low rigidity in block copolymer
The content of unit and high rigidity unit, block copolymer has difference in terms of modulus value.
In addition, the refractive index of measurement block copolymer.Measurement wherein high rigidity unit, i.e. PMMA unit have relatively
The hard area domain (HR) of high molar fraction, wherein Low rigidity unit, i.e. PBA unit have the soft of of a relatively high molar fraction
The refractive index in interface zone (IR) between region (SR) and hard area domain and soft zone domain.As a result show arranged side by side in Fig. 10
In table 1.(in Fig. 10, X-axis (transverse axis) represents PBA ratios, and Y-axis (longitudinal axis) represents refractive index)
Table 1
As shown in Figure 10 and table 1, although there is modulus difference, hard area in hard area domain, soft zone domain and interface zone
Domain, soft zone domain and interface zone have essentially identical refractive index.
The ratio of high rigidity unit (PMMA) and Low rigidity unit (PU) has discrepant lid window
PU (refractive index=1.512) unit is used instead of PBA unit.
Refractive index in measurement hard area domain (HR), soft zone domain (SR) and interface zone (IR).As a result it is listed in Table 2.
Table 2
As shown in table 2, although there is modulus difference, hard area domain, soft zone in hard area domain, soft zone domain and interface zone
Domain and interface zone have essentially identical refractive index.
The ratio of high rigidity unit (PMMA) and Low rigidity unit (PS-PB) has discrepant lid window
The unit of polystyrene-polybutadiene (PS-PB) is used instead of PBA unit.
Refractive index in measurement hard area domain (HR), soft zone domain (SR) and interface zone (IR).As a result it is listed in Table 3.
Table 3
As shown in table 3, although there is modulus difference, hard area domain, soft zone in hard area domain, soft zone domain and interface zone
Domain and interface zone have essentially identical refractive index.
Figure 11 is the schematic cross sectional view for the display device for including the lid window according to third embodiment of the invention.
As shown in Figure 11, display device 600 include display panel 640 and cover display panel 640 preceding surface and
The lid window 630 of side surface.
Display panel 640 can be liquid crystal panel and organic LED panel.However it is not limited to this.
Lid window 630 includes the first area 610a and second area 610b of the side surface of covering display panel 640 and covered
The 3rd region 620a on the preceding surface of lid display panel 640.In addition, lid window 630 can further comprise being covered each by display panel
The Part I and the 4th region 620b of Part II and the 5th region 620c on 640 rear surface.
For example, when as liquid crystal panel display panel 640 include be arranged on liquid crystal panel after lower face backlight
During unit, the side surface of first area 610a and second area 610b covering display panels 640 and back light unit, and the 4th area
Domain 620b and the 5th region 620c covers the rear surface of back light unit.
Although not shown, adhesive phase can be used to conform to display panel 640 for lid window 630.
Each of first area 610a and second area 610b are with essentially identical with the side surface of display panel 640
The area of plane, and the 3rd region 620a has the preceding surface with display panel 640, i.e. image display surface are essentially identical to put down
Face area.
In figure 3 a, first area 410 and second area 420a and the 420b gross area substantially with before display panel
Surface is identical.
However, in the lid window 630 shown in Figure 11, the 3rd region 620a corresponds to the preceding surface of display panel 640, and
First area 610a and second area 610b is located at the 3rd region 620a both sides.
Reference picture 12, Figure 12 is the schematic plan view of the lid window according to third embodiment of the invention, first area
610a and second area 610b surrounds the 3rd region 620a positioned at the center of lid window 630 and first area 610a and the secondth area
Domain 610b is connected with the 3rd region 620a.4th region 620b and the 5th region 620c surrounds first area 610a and second area
610b and the 4th region 620b and the 5th region 620c are connected with first area 610a and second area 610b.3rd region
620a width (or area) is more than first area 610a, second area 610b, the 4th region 620b and the 5th region 620c's
The width (or area) of each.
First to the 5th region 610a, 610b, 620a, 620b and 620c include the high rigidity unit comprising identical component and
The block copolymer of the Low rigidity unit of identical component.In other words, first to the 5th region 610a, 610b, 620a, 620b and
The unit of block copolymer in 620c, i.e. high rigidity unit and Low rigidity unit are identical components.
However, Low rigidity unit (or the high rigidity in block copolymer in first area 610a and second area 610b
Unit) molar fraction from the 3rd to the 5th region 620a, 620b and 620c being different.That is, the 3rd to the 5th
The molar fraction of high rigidity unit in block copolymer in region 620a, 620b and 620c is more than first area 610a and the
The molar fraction of the high rigidity unit in block copolymer in two region 610b, and first area 610a and second area
The molar fraction of Low rigidity unit in block copolymer in 610b is more than in the 3rd to the 5th region 620a, 620b and 620c
Block copolymer in Low rigidity unit molar fraction.Therefore, first area 610a and second area 610b has and is less than
3rd to the 5th region 620a, 620b and 620c modulus value.
For example, the block copolymer for first area 610a and second area 610b can be represented by formula 7.
[formula 7]
In formula 7, " A " can be the unit of the polymer selected from the set for including materials described below：It is polyurethane (PU), poly-
Butyl acrylate (PBA), polystyrene, polybutadiene, polyethylene and their copolymer, " B " can be under including
State the unit of the polymer of the set of material：Polymethyl methacrylate (PMMA), makrolon (PC) and their copolymerization
Thing.In addition " m " and " n " is " A " and " B " molar fraction respectively, and " m " and " n " sum is one (1) (m+n=1).
In first area 610a and second area 610b, " m " is more than " n ".In the 3rd to the 5th region 620a, 620b and
In each of 620c, " m " is less than " n ".
For example, in first area 610a and second area 610b, can be big as " m " of the molar fraction of Low rigidity unit
It is approximately 0.6 to 0.95, can is about 0.05 to 0.4 as " n " of the molar fraction of high rigidity unit.In addition, the 3rd to
In five region 620a, 620b and 620c, " m " can be about 0.05 to 0.4, and " n " can be about 0.6 to 0.95.
The Low rigidity unit of block copolymer and the ratio of high rigidity unit are in first area 610a and second area 610b
Each be different between each of the 3rd to the 5th region 620a, 620b and 620c so that the first to the 5th area
Domain 610a, 610b, 620a, 620b and 620c modulus value are controlled.
That is, in block copolymer, when content (that is, the molar percentage) increase of Low rigidity unit, block is common
The modulus value of polymers reduces.On the other hand, when the content increase of high rigidity unit, the modulus value increase of block copolymer.The
Between each of each of one region 610a and second area 610b and the 3rd to the 5th region 620a, 620b and 620c
Interface zone can have first area 610a and second area 610b each with the 3rd to the 5th region 620a, 620b and
Modulus value between each of 620c.
The of a relatively high first area 610a of the molar fraction of Low rigidity unit wherein in block copolymer and the secondth area
The the 3rd to the 5th of a relatively high region 620a of the molar fraction of high rigidity unit in domain 610b, wherein block copolymer,
620b and 620c and interface zone have difference in terms of configuration of surface.
First area 610a and second area 610b flexible increase so that first area 610a and second area 610b tools
There is outstanding impact property.3rd to the 5th region 620a, 620b and 620c have outstanding hardness and anti-zoned Flaw characterization with
And excellent rigidity.
In other words, the 3rd to the 5th region 620a, 620b and 620c, which has, is more than first area 610a and second area
610b rigidity and hardness.For example, the 3rd to the 5th region 620a, 620b and 620c rigidity be about first area 610a and
2.5 to 7 times of second area 610b.First area 610a and second area 610b hardness (for example, pencil hardness) are that 4B is arrived
6B grades, the 3rd to the 5th region 620a, 620b and 620c hardness is more than H grades.
The rigidity and/or hardness of interface zone can from first area 610a and second area 610b side towards the 3rd to
5th region 620a, 620b and 620c side becomes larger.
When the side surface for covering display panel 640 and the lid window 630 on the preceding surface of display panel 640 are by homogenous material
When (generally identical modulus (rigidity or hardness)) is made, bent portion of the stress concentration in the edge of display panel 640
Place so that lid window 630 does not conform to display panel 640 completely.
However, in the present invention because lid window 630 include it is corresponding with the display surface of display panel 640 with and have
3rd region 620a of high-modulus value and the firstth area corresponding with the side surface of display panel 640 and with low modulus value
Domain 610a and second area 610b, so the problem of will not producing above.
In addition, because the 3rd region 620a at the display surface of display panel 640 has a high-modulus value, institute to prevent
Stop due to the damage that external impact is caused to display panel 640.
On the other hand, when the first area 610a and second area 610b of lid window and the 3rd region 620a are by different materials
When material has difference in terms of being formed to modulus value, it can be seen that each of first area 610a and second area 610b and the 3rd
Interface zone between the 620a of region.That is, due to the refringence in first to the 3rd region 610a, 610b and 620a,
It can be seen that their interface zone.
However, in the present invention, in first to the 3rd region 610a, 610b and 620a block copolymer, although (formula
Son 7) content of Low rigidity unit A and (formula 7) high rigidity unit B has differences, but the first to the 3rd region 610a,
610b and 620a block copolymer is of identical composition, i.e. Low rigidity unit and high rigidity unit.Therefore, first to the 3rd
Region 610a, 610b and 620a and their interface zone have essentially identical refractive index.
It is therefore prevented that each of the bent portion of display panel 640, i.e. first area 610a and second area 610b
Interface zone between the 3rd region 620a is seen.
On the other hand, by can be by the 4th region 620b formed with the 3rd region 620a identical materials and the 5th region
620c, effectively protects the rear surface of display panel 640.
Selectively, as shown in Figure 13, lid window 630 may include first to the 3rd region 610a, 610b and 620, without
With (Figure 11's) the 4th region 620b and the 5th region 620c, cover aobvious using first area 610a and second area 610b
Show the rear surface of panel 640.
In the case of without departing substantially from the scope of the appended claims, can to these embodiments carry out it is various modification and
Change, this will be apparent to a person skilled in the art.Thus, these embodiments be not it is restricted,
But it is intended to fall into the modifications and variations in appended sharp claim scope and its equivalency range.
Claims (20)
1. a kind of lid window, including：
First area；With
Second area positioned at the both sides of the first area,
Wherein described first area has the rigidity different from the second area, and the first area and secondth area
The rigidity of interface zone between domain is gradually changed.
2. lid window according to claim 1, wherein the table of the first area, the second area and the interface zone
Face form is different.
3. lid window according to claim 1, wherein the rigidity of the second area is more than the rigidity of the first area.
4. lid window according to claim 3, in addition to：
The 3rd region positioned at the outside of each second area；With
The 4th region between each second area and each 3rd region,
The rigidity in wherein described 3rd region is more than the four-range rigidity and equal to or more than the second area
Rigidity, and the four-range rigidity is equal to or more than the rigidity of the first area.
5. lid window according to claim 1, wherein the hardness of the second area is more than the hardness of the first area.
6. lid window according to claim 5, in addition to：
The 3rd region positioned at the outside of each second area；With
The 4th region between each second area and each 3rd region,
The hardness in wherein described 3rd region is more than the four-range hardness and equal to or more than the second area
Hardness, and the four-range hardness is equal to or more than the hardness of the first area.
7. lid window according to claim 1, wherein the rigidity of the first area is more than the rigidity of the second area.
8. lid window according to claim 1, wherein the hardness of the first area is more than the hardness of the second area.
9. lid window according to claim 1, wherein the first area, the second area and the interface zone have
Essentially identical refractive index.
10. lid window according to claim 1, wherein each of the first area and the second area include having
The block copolymer of first module and second unit, the first module has the rigidity less than the second unit, and
The molar fraction of first module in the first area is more than the molar fraction of the second unit in the first area,
And the molar fraction of the second unit in the second area is more than the molar fraction of the first module in the second area.
11. lid window according to claim 1, wherein each of the first area and the second area include having
The block copolymer of first module and second unit, the first module has the rigidity less than the second unit, and
The molar fraction of second unit in the first area is more than the molar fraction of the first module in the first area,
And the molar fraction of the first module in the second area is more than the molar fraction of the second unit in the second area.
12. a kind of lid window, including：
First area；With
Second area positioned at the both sides of the first area,
Wherein described first area has the rigidity different from the second area, and the first area, secondth area
The configuration of surface of domain and the interface zone between the first area and the second area is different.
13. lid window according to claim 12, wherein the first area, the second area and interface zone tool
There is essentially identical refractive index.
14. lid window according to claim 12, wherein each of the first area and the second area include tool
There is the block copolymer of first module and second unit, the first module has the rigidity less than the second unit, and
The molar fraction of first module in the first area is more than the molar fraction of the second unit in the first area,
And the molar fraction of the second unit in the second area is more than the molar fraction of the first module in the second area.
15. lid window according to claim 12, wherein each of the first area and the second area include tool
There is the block copolymer of first module and second unit, the first module has the rigidity less than the second unit, and
The molar fraction of second unit in the first area is more than the molar fraction of the first module in the first area,
And the molar fraction of the first module in the second area is more than the molar fraction of the second unit in the second area.
16. a kind of display device, including：
Display panel；With
Lid window at the surface of the display panel, the lid window includes first area and positioned at the first area
The second area of both sides,
Wherein described first area has the rigidity different from the second area, and the first area and secondth area
The rigidity of interface zone between domain is gradually changed.
17. display device according to claim 16, wherein the first area and the second area are corresponding to described
The display surface of display panel.
18. a kind of display device, including：
Display panel, the display panel includes preceding surface and the first side surface and the second side surface；With
Lid window, the lid window includes first area corresponding with first side surface and second side surface and second respectively
Region and the 3rd region corresponding with the preceding surface,
Wherein described 3rd region has the rigidity more than the first area and the second area.
19. display device according to claim 18, wherein the described first to the 3rd region has essentially identical refraction
Rate.
20. display device according to claim 18, wherein the lid window also includes：4th region and the 5th region, institute
The 4th region and the 5th region is stated to be located at the outside of the first area and the second area and cover the display
The rear surface of panel, and
Wherein described 4th region and the 5th region have the rigidity more than the first area and the second area.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20150191641 | 2015-12-31 | ||
| KR10-2015-0191641 | 2015-12-31 | ||
| KR1020160140217A KR102601900B1 (en) | 2015-12-31 | 2016-10-26 | Cover window and disaly device including the same |
| KR10-2016-0140217 | 2016-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107065255A true CN107065255A (en) | 2017-08-18 |
| CN107065255B CN107065255B (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611178050.4A Active CN107065255B (en) | 2015-12-31 | 2016-12-19 | Cover window and display device including the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102601900B1 (en) |
| CN (1) | CN107065255B (en) |
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| CN111261036A (en) * | 2018-11-30 | 2020-06-09 | 北京小米移动软件有限公司 | Foldable device |
| CN111862807A (en) * | 2019-04-26 | 2020-10-30 | Uti有限公司 | Flexible covering window |
| CN112185251A (en) * | 2019-07-03 | 2021-01-05 | Uti有限公司 | Flexible cover window |
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Also Published As
| Publication number | Publication date |
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| KR20170080446A (en) | 2017-07-10 |
| KR102601900B1 (en) | 2023-11-14 |
| CN107065255B (en) | 2020-10-23 |
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