CN109062439A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN109062439A CN109062439A CN201810901251.5A CN201810901251A CN109062439A CN 109062439 A CN109062439 A CN 109062439A CN 201810901251 A CN201810901251 A CN 201810901251A CN 109062439 A CN109062439 A CN 109062439A
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- Prior art keywords
- protrusion
- protective layer
- display panel
- bent area
- stress relief
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The present invention provides a kind of display panel and display device; protective layer including flexible base board bent area is arranged in, protective layer include the protection layer main body for covering bent area, the protrusion being arranged at intervals on protection layer main body and form stress relief grooves for discharging being defined by two adjacent protrusions for folding s tress.The present invention covers bent area by the protection layer main body of protective layer, plays the role of protecting bent area, and by the stress relief grooves of protective layer, reduce the folding s tress of bent area.
Description
Technical field
The present invention relates to a kind of display technology, in particular to a kind of display panel and display device.
Background technique
With the development of display technology, the direction of display device towards narrow frame and Rimless is developed.People fill display
The widescreen demand set is increasing.
Existing narrow frame display device, such as Fig. 1 comprising display panel, the touch panel of setting on a display panel
14 ' and the polarizer being arranged on touch panel, display panel include 11 ' of backboard and the flexible base board that is arranged on 11 ' of backboard
12 ', 12 ' of flexible base board include for display pattern functional areas 12a ', be arranged in the functional areas side 12a ' for bending
Bent area 12b ' and the binding area for being used to bind driving chip that the bent area side 12b ' is set.Carrying out narrow frame design
When, usually bent area 12b ' is bent, so that binding area is located at the back side of functional areas under the bending of bent area, thus real
The purpose of existing narrow frame.
In addition it is provided with circuit on the 12b ' of bent area, in order to avoid the circuit on the 12b ' of bent area is damaged in bending,
Just 13 ' of a UV gel coating is provided on the 12b ' of bent area, but since the thickness of UV gel coating is thicker (100 microns), thus
Influence the bending angle of bent area.
Summary of the invention
The embodiment of the present invention provides a kind of display panel and display device;To solve existing display panel and display device
The middle UV gel coating being arranged on bent area is thicker, leads to the technical issues of influencing the bending angle of bent area.
The embodiment of the present invention provides a kind of display panel, including backboard and the flexible base board being arranged on the backboard, institute
Stating flexible base board includes functional areas and positioned at the bent area of the functional areas side, and the display panel includes one being arranged described
Bent area is backwards to the backboard one side for protecting the protective layer of the bent area circuit;
The protective layer includes:
Layer main body is protected, the bent area is covered;And
Protrusion is arranged at intervals on the protection layer main body;
One is wherein formed between two adjacent protrusions for discharging the stress relief grooves of folding s tress.
In display panel of the invention, the protrusion be divided into be arranged in the bent area middle section the first protrusion and
Second protrusion of the bent area two side portions is set, and the stress relief grooves are divided by two adjacent first protrusions
The first stress relief grooves formed and the second stress relief grooves formed by two adjacent second protrusions;
Wherein the width of first protrusion is less than the width of second protrusion, adjacent first stress relief grooves
The distance between center line is less than adjacent the distance between the second stress release groove center line.
In display panel of the invention, in the longitudinal section of the protective layer, the protrusion includes and the protective layer
The bottom surface that the top surface of ontology is overlapped and the convex globoidal for being connected to the bottom surface both ends.
In display panel of the invention, the stress relief grooves are formed by the adjacent convex globoidal, and adjacent two
It is connected between the convex globoidal by fillet.
In display panel of the invention, in the longitudinal section of the protective layer, the protrusion includes and the protective layer
The bottom surface that the top surface of ontology is overlapped and two side planes for being connected to the bottom surface both ends;
Side plane described in two of them is respectively acute angle with the angle of the bottom surface.
In display panel of the invention, in the longitudinal section of the protective layer, the cross sectional shape of the protrusion is triangle
Shape or trapezoidal shape, the stress relief grooves are formed by the adjacent side plane.
In display panel of the invention, in the stress relief grooves, two side planes are connected by fillet.
In display panel of the invention, the thickness of the protective layer is less than 300 microns, the thickness of the protection layer main body
More than or equal to 30 microns and less than 100 microns.
In display panel of the invention, it is described protection layer main body with a thickness of 50 microns.
The embodiment of the present invention provides a kind of display device, the touch-control including display panel and setting on said display panel
Panel, the display panel include backboard and the flexible base board that is arranged on the backboard, and the flexible base board includes functional areas
With the bent area for being located at the functional areas side, the display panel is arranged in the bent area including one backwards to the backboard one
The protective layer for being used to protect the bent area circuit in face;
The protective layer includes:
Layer main body is protected, the bent area is covered;And
Protrusion is arranged at intervals on the protection layer main body;
One is wherein formed between two adjacent protrusions for discharging the stress relief grooves of folding s tress.
In display device of the invention, the protrusion be divided into be arranged in the bent area middle section the first protrusion and
Second protrusion of the bent area two side portions is set, and the stress relief grooves are divided by two adjacent first protrusions
The first stress relief grooves formed and the second stress relief grooves formed by two adjacent second protrusions;
Wherein the width of first protrusion is less than the width of second protrusion, adjacent first stress relief grooves
The distance between center line is less than adjacent the distance between the second stress release groove center line.
In display device of the invention, in the longitudinal section of the protective layer, the protrusion includes and the protective layer
The bottom surface that the top surface of ontology is overlapped and the convex globoidal for being connected to the bottom surface both ends.
In display device of the invention, the stress relief grooves are formed by the adjacent convex globoidal, and adjacent two
It is connected between the convex globoidal by fillet.
In display device of the invention, in the longitudinal section of the protective layer, the protrusion includes and the protective layer
The bottom surface that the top surface of ontology is overlapped and two side planes for being connected to the bottom surface both ends;
Side plane described in two of them is respectively acute angle with the angle of the bottom surface.
In display device of the invention, in the longitudinal section of the protective layer, the cross sectional shape of the protrusion is triangle
Shape or trapezoidal shape, the stress relief grooves are formed by the adjacent side plane.
In display device of the invention, in the stress relief grooves, two side planes are connected by fillet.
In display device of the invention, the thickness of the protective layer is less than 300 microns, the thickness of the protection layer main body
More than or equal to 30 microns and less than 100 microns.
In display device of the invention, it is described protection layer main body with a thickness of 50 microns.
In display device of the invention, the display device include setting on said display panel have polarizer
Touch panel, wherein the height of the touch panel be higher than the protective layer height.
Display panel and display device compared to the prior art, display panel of the invention and display device pass through protection
The protection layer main body of layer covers bent area, plays the role of protecting bent area, and by the stress relief grooves of protective layer, reduce curved
The folding s tress of folding area, and then improve the bending angle of bent area;It solves and is arranged in existing display panel and display device
UV gel coating on bent area is thicker, leads to the technical issues of influencing the bending angle of bent area.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below to required in embodiment
Attached drawing to be used is briefly described.The accompanying drawings in the following description is only section Example of the invention, general for this field
For logical technical staff, without creative efforts, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the display device of the prior art;
Fig. 2 is the structural schematic diagram in flattened state of the first preferred embodiment of display panel of the invention;
Fig. 3 is the structural schematic diagram in bending state of the first preferred embodiment of display panel of the invention;
Fig. 4 is the structural representation in flattened state of the protective layer of the first preferred embodiment of display panel of the invention
Figure;
Fig. 5 is the structural representation in bending state of the protective layer of the first preferred embodiment of display panel of the invention
Figure;
Fig. 6 is the structural schematic diagram of the protective layer of the second preferred embodiment of display panel of the invention;
Fig. 7 is the structural schematic diagram of the protective layer of the third preferred embodiment of display panel of the invention;
Fig. 8 is the structural schematic diagram of the preferred embodiment of display device of the invention.
Specific embodiment
The schema in attached drawing is please referred to, wherein identical component symbol represents identical component.The following description is to be based on
Illustrated by the specific embodiment of the invention, be not construed as the limitation present invention other specific embodiments not detailed herein.
It is referring to figure 2. the first preferred embodiment of display panel of the invention in flattened state to Fig. 5, Fig. 2
Structural schematic diagram;Fig. 3 is the structural schematic diagram in bending state of the first preferred embodiment of display panel of the invention;Figure
4 be the structural schematic diagram in flattened state of the protective layer of the first preferred embodiment of display panel of the invention;Fig. 5 is this
The structural schematic diagram in bending state of the protective layer of the first preferred embodiment of the display panel of invention.
Display panel 10 in first preferred embodiment of the invention includes backboard 11 and the flexible base being arranged on backboard 11
Plate 12, flexible base board 12 include the functional areas 12a and bent area 12b positioned at the functional areas side 12a, and display panel 10 is set including one
It sets in bent area 12b backwards to 11 one side of backboard for protecting the protective layer 13 of bent area 11b circuit;
Protective layer 13 includes the protection layer main body 131 of covering bent area 12b, is arranged at intervals on the protection layer main body
Protrusion, wherein being formed with one between two adjacent protrusions for discharging the stress relief grooves of folding s tress.
The first embodiment of display panel of the invention covers bent area 12b by the protection layer main body 131 of protective layer 13,
Play the role of protecting bent area 12b, and pass through the stress relief grooves of protective layer 13, reduces the folding s tress of bent area 12b, into
And improve the bending angle of bent area 12b.
In this first preferred embodiment, stress relief grooves are defined by two adjacent protrusions and are formed, so that between protrusion
It joins end to end, i.e., is spaced a stress release portion, such setting, so that protrusion maximum area is covered between two neighboring protrusion
Lid protection layer main body, improves the protective value of protective layer.
Certainly in display panel of the invention, stress relief grooves are also possible to by two adjacent protrusions and protective layer master
Body defines to be formed, that is, does not contact between two protrusions that are connected.
In this first preferred embodiment, the thickness of protective layer 13 protects the thickness of layer main body 131 big less than 300 microns
In equal to 30 microns and less than 100 microns.When the first embodiment of the present invention is arranged in display device, display panel it
On be additionally provided with touch panel and polarizer, and the thickness of protective layer 13 is no more than the height of touch panel and polarizer, with
Exempt from the installation of influence display device, therefore the thickness of protective layer 13 is set smaller than 300 microns.
Wherein, the effect of layer main body 131 is protected to be to protect the circuit on the 12b of bent area, therefore when protection layer main body 131
Thickness less than 30 microns, protect layer main body 131 by folding s tress when, will damage, so that protection circuit be not achieved
Purpose, therefore will protection layer main body 131 be set greater than equal to 30 microns.In addition, because bent area 12b is being bent
When, it is protected the influence of 131 thickness of layer main body, i.e. the thickness of protection layer main body 131 is bigger, and bent area 12b is being bent
When, the folding s tress being subject to is bigger, and in order to avoid protection layer main body 131 damages, the bending angle of bent area 12b cannot be too big,
To affect bending effect, therefore in order to guarantee that bent area 12b has enough bending angles, the thickness of layer main body 131 is protected
Degree is less than 100 microns.Preferably, protect layer main body 131 with a thickness of 50 microns.
In the first preferred embodiment of this display panel, it is arranged specifically, protrusion is divided into the bent area middle section 12b
The first protrusion 132 and the second protrusion 133 of bent area 12b two side portions is set, stress relief grooves are divided by adjacent two
The first stress relief grooves 134 and released by the second stress that two adjacent the second protrusions 133 are formed that a first protrusion 132 is formed
Put slot 135;
Wherein the width of the first protrusion 132 less than the second protrusion 133 width, in the first adjacent stress relief grooves 134
The distance between heart line M1 is less than the distance between adjacent 135 center line of the second stress relief grooves M2.
It is readily apparent that when bent area 12b is bent, folding s tress that the middle section of bent area 12b is subject to
Maximum, and bent area 12b is by relatively small to folding s tress.
Therefore, the distance between adjacent 134 center line of the first stress relief grooves is less than the second adjacent stress relief grooves
The setting of the distance between 135 center lines the, so that density (unit of the first stress relief grooves 134 of the bent area middle section 12b
In area, the quantity of stress relief grooves) be greater than bent area 12b two side areas the second stress relief grooves 135 density, i.e., first
The width of stress relief grooves 134 less than the second stress relief grooves 135 width, and then improve protective layer 13 discharge folding s tress
Uniformity, to improve the stability of protective layer 13.
Further, in order to improve the uniformity that protective layer 13 discharges folding s tress, the width of stress relief grooves is from two
Side section is uniformly successively decreased to middle section, i.e., the width of protrusion is from two side portions to middle section uniform increments.
Protective layer 13 is an integral molding structure, and further improves the stability of protective layer 13.
Certainly, in the present invention, the width of stress relief grooves is also possible to identical, the present invention and with no restrictions.
In the first preferred embodiment of display panel of the invention, in the longitudinal section of protective layer 13, protrusion include with
The bottom surface that the top surface of protective layer ontology 131 is overlapped and the convex globoidal for being connected to bottom surface both ends.
Stress relief grooves are formed by adjacent convex globoidal, and are connected between two adjacent convex globoidals by fillet.
Specifically, the first protrusion 132 and the second protrusion 133 include the bottom surface being overlapped with the top surface of protective layer ontology 131
The convex globoidal 13b of 13a and the both ends for being connected to bottom surface 13a, the first stress relief grooves 134 are convex by the first adjacent protrusion 132
Cambered surface 13b is formed, and the second stress relief grooves 135 are formed by the convex globoidal 13b of the second adjacent protrusion 133, and the first stress is released
It puts and is connected between two convex globoidal 13b of slot 134 and two convex globoidal 13b of the second stress relief grooves 135 by fillet.
Wherein, it is by the effect that fillet connects, when being bent, prevents the junction between two protrusions from generating
Tearing, improves the stability of protective layer 13.
In addition, the material of protective layer 13 can be UV glue, epoxy glue or resin etc., and in this first preferred embodiment, protection
Layer 13 is UV glue.
The formation process of protective layer 13 is: one layer of UV glue is coated with first on the 12b of bent area, then use has and corresponds to
The template of the shape of protrusion and stress relief grooves carries out pressing and forming to UV glue, is finally solidified using ultraviolet light, to be formed
Protective layer 13.
And when bent area 12b is bent, protrusion is stretched the influence of power, and cause the width of protrusion to become larger, thus
So that the width of stress relief grooves becomes larger.
In the second embodiment of display panel of the invention, Fig. 6 is please referred to, this second preferred embodiment and first is preferably
Embodiment the difference is that: in the longitudinal section of protective layer 23, protrusion includes being overlapped with the top surface of protective layer ontology 231
Bottom surface and two side planes for being connected to bottom surface both ends;Two of them side plane is respectively acute angle with the angle of bottom surface.
Wherein, acute angle is set by the angle of side plane and bottom surface, the junction on the one hand playing two protrusions of reduction exists
On the other hand the risk torn when bending is convenient for the formation of protrusion and stress relief grooves, improve producing efficiency.
Further, in stress relief grooves, two side planes are connected by fillet.Such setting further reduced
The risk that the junction of two protrusions is torn in bending.
In the longitudinal section of protective layer 13, the cross sectional shape of protrusion is triangle, and stress relief grooves are by the adjacent side
Plane is formed.
Specifically, protrusion is divided into the first protrusion 232 that bent area middle section is arranged in and is arranged in bent area both sides
The second protrusion 233 divided, stress relief grooves are divided into the first stress relief grooves 234 formed by two adjacent the first protrusions 232
With the second stress relief grooves 235 formed by two adjacent the second protrusions 233;
First protrusion 232 and the second protrusion 233 include the bottom surface 23a being overlapped with the top surface of protective layer ontology 231 and divide
It is not connected to two side plane 23b at the bottom surface both ends 23a;Two of them 23b side plane is respectively sharp with the angle of bottom surface 23a
Angle.
First stress relief grooves 234 are formed by the side plane 23b of two neighboring first protrusion 232, the second stress relief grooves
235 are formed by the side plane 23b of two adjacent the second protrusions 233.
In the third preferred embodiment of display panel of the invention, Fig. 7 is please referred to, this third embodiment and second is preferably
Embodiment the difference is that, in the longitudinal section of protective layer 33, the cross sectional shape of protrusion is trapezoidal shape, stress relief grooves by
The adjacent side plane is formed.
In stress relief grooves, two side planes are connected by fillet.
Specifically, protrusion is divided into the first protrusion 332 that bent area middle section is arranged in and is arranged in bent area both sides
The second protrusion 333 divided, stress relief grooves are divided into the first stress relief grooves 334 formed by two adjacent the first protrusions 332
With the second stress relief grooves 335 formed by two adjacent the second protrusions 333;
First protrusion 332 and the second protrusion 333 include the bottom surface 33a being overlapped with the top surface of protective layer ontology 331 and divide
It is not connected to two side plane 33b at the bottom surface both ends 33a;Two of them 33b side plane is respectively sharp with the angle of bottom surface 33a
Angle.
First stress relief grooves 334 are formed by the side plane 33b of two neighboring first protrusion 332, the second stress relief grooves
335 are formed by the side plane 33b of two adjacent the second protrusions 333.
Certainly in display panel of the invention, the shape of protrusion is also possible to other shapes, such as pentagon, semiellipse
Shape or rectangle and semicircle etc., therefore the shape of protrusion of the invention, however it is not limited to above embodiments.
Fig. 8 is please referred to, the embodiment of the present invention provides a kind of display device, including display panel and setting are on a display panel
The touch panel 200 with polarizer, display panel includes backboard 101 and the flexible base board 102 that is arranged on backboard 101,
Flexible base board 102 includes the functional areas 10a and bent area 10b positioned at the functional areas side 10a, and display panel includes a setting curved
Folding area 10b is backwards to 101 one side of backboard for protecting the protective layer 103 of bent area 10b circuit;
Protective layer 103 includes:
Layer main body is protected, the bent area is covered;And
Protrusion is arranged at intervals on the protection layer main body;
One is wherein formed between two adjacent protrusions for discharging the stress relief grooves of folding s tress.
It should be noted that display panel include be arranged in it is for displaying images aobvious on the functional areas of flexible base board 102
Show module (not shown).Touch panel 200 is arranged on the display module.
In display device of the invention, the height of touch panel 200 is higher than the height of protective layer 103.
In display device of the invention, the protrusion be divided into be arranged in the bent area middle section the first protrusion and
Second protrusion of the bent area two side portions is set, and the stress relief grooves are divided by two adjacent first protrusions
The first stress relief grooves formed and the second stress relief grooves formed by two adjacent second protrusions;
Wherein the width of first protrusion is less than the width of second protrusion, adjacent first stress relief grooves
The distance between center line is less than adjacent the distance between the second stress release groove center line.
In display device of the invention, the thickness of the protective layer is less than 300 microns, the thickness of the protection layer main body
More than or equal to 30 microns and less than 100 microns.
In display device of the invention, it is described protection layer main body with a thickness of 50 microns.
In the first embodiment of display device of the invention, in the longitudinal section of protective layer 103, the protrusion include with
The bottom surface that the top surface of the protective layer ontology is overlapped and the convex globoidal for being connected to the bottom surface both ends.
In display device of the invention, the stress relief grooves are formed by the adjacent convex globoidal, and adjacent two
It is connected between the convex globoidal by fillet.
Difference in another embodiment of display device of the invention, with the first embodiment of display device of the invention
Place is: in the longitudinal section of protective layer 103, the protrusion include the bottom surface being overlapped with the top surface of the protective layer ontology and
It is connected to two side planes at the bottom surface both ends;
Side plane described in two of them is respectively acute angle with the angle of the bottom surface.
In display device of the invention, in the longitudinal section of the protective layer, the cross sectional shape of the protrusion is triangle
Shape or trapezoidal shape, the stress relief grooves are formed by the adjacent side plane.
In display device of the invention, in the stress relief grooves, two side planes are connected by fillet.
Display panel and display device compared to the prior art, display panel of the invention and display device pass through protection
The protection layer main body of layer covers bent area, plays the role of protecting bent area, and by the stress relief grooves of protective layer, reduce curved
The folding s tress of folding area, and then improve the bending angle of bent area;It solves and is arranged in existing display panel and display device
UV gel coating on bent area is thicker, leads to the technical issues of influencing the bending angle of bent area.
Although the disclosure, this field skill has shown and described relative to one or more implementations in the present invention
Art personnel will be appreciated that equivalent variations and modification based on the reading and understanding to the specification and drawings.The disclosure include it is all this
The modifications and variations of sample, and be limited only by the scope of the following claims.In addition, although the special characteristic of the disclosure phase
Only one in several implementations is disclosed, but this feature can with such as can be for a given or particular application
It is expectation and one or more other features combinations of other advantageous implementations.Moreover, with regard to term " includes ", " having ",
" containing " or its deformation be used in specific embodiments or claims for, such term be intended to with term "comprising"
Similar mode includes.
In conclusion although the present invention is disclosed above with embodiment, the serial number before embodiment, such as " first ", " second "
Deng only using for convenience of description, the sequence of various embodiments of the present invention is not caused to limit.Also, above-described embodiment not to
Limitation the present invention, those skilled in the art, without departing from the spirit and scope of the present invention, can make it is various change with
Retouching, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of display panel, including backboard and the flexible base board being arranged on the backboard, which is characterized in that the flexibility base
Plate includes functional areas for pixel array to be arranged and positioned at the bent area of the functional areas side, and the display panel includes one
The bent area is set backwards to the backboard one side for protecting the protective layer of the bent area cabling;
The protective layer includes:
Layer main body is protected, the bent area is covered;And
Protrusion is arranged at intervals on the protection layer main body;
One is wherein formed between two adjacent protrusions for discharging the stress relief grooves of folding s tress.
2. display panel according to claim 1, which is characterized in that the protrusion, which is divided into, to be arranged among the bent area
The first partial protrusion and the second protrusion that the bent area two side portions are arranged in, the stress relief grooves are divided by adjacent
Two first protrusion the first stress relief grooves formed and the second stress formed by two adjacent second protrusions
Release groove;
Wherein the width of first protrusion is less than the width of second protrusion, adjacent the first stress release groove center
The distance between line is less than adjacent the distance between the second stress release groove center line.
3. display panel according to claim 1, which is characterized in that in the longitudinal section of the protective layer, the protrusion
Including the bottom surface being overlapped with the top surface of the protective layer ontology and it is connected to the convex globoidal at the bottom surface both ends.
4. display panel according to claim 3, which is characterized in that the stress relief grooves are by the adjacent convex globoidal shape
At, and connected between two adjacent convex globoidals by fillet.
5. display panel according to claim 1, which is characterized in that in the longitudinal section of the protective layer, the protrusion
Including the bottom surface being overlapped with the top surface of the protective layer ontology and two side planes for being connected to the bottom surface both ends;
Side plane described in two of them is respectively acute angle with the angle of the bottom surface.
6. display panel according to claim 5, which is characterized in that in the longitudinal section of the protective layer, the protrusion
Cross sectional shape be triangle or trapezoidal shape, the stress relief grooves are formed by the adjacent side plane.
7. display panel according to claim 6, which is characterized in that in the stress relief grooves, two sides are flat
Face is connected by fillet.
8. display panel according to claim 1, which is characterized in that the thickness of the protective layer is described less than 300 microns
The thickness of layer main body is protected to be more than or equal to 30 microns and less than 100 microns.
9. a kind of display device, which is characterized in that including the described in any item display panels of claim 1-8.
10. display device according to claim 9, which is characterized in that the display device includes being arranged in the display
The touch panel with polarizer on panel, wherein the height of the touch panel is higher than the height of the protective layer.
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