CN108039358A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN108039358A CN108039358A CN201711257892.3A CN201711257892A CN108039358A CN 108039358 A CN108039358 A CN 108039358A CN 201711257892 A CN201711257892 A CN 201711257892A CN 108039358 A CN108039358 A CN 108039358A
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- 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
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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Abstract
The invention discloses a kind of display panel and display device, to solve the problems, such as that the design difficulty of each layer mask plate of special-shaped display area existing in the prior art is larger.Display panel includes display area, neighboring area, and at least one intermediate region between display area and the neighboring area；Wherein, edge of the intermediate region away from display area includes the first fillet with first curvature radius；Intermediate region includes the first circular arc with second curvature radius and the second circular arc with the 3rd radius of curvature close to the edge of display area；Display area and intermediate region include luminescence unit and the pixel defining layer being arranged in array；Luminescence unit includes：First electrode, luminescent layer and the second electrode being stacked, luminescent layer is between first electrode and second electrode；In display area, pixel defining layer is used to limit luminescence unit；The first electrode of pixel defining layer covering luminescence unit in intermediate region.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of display panel and display device.
Background technology
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display device has driving voltage
It is low, luminosity is high, luminous efficiency is high, shines that visual angle is wide, fast response time, ultra-thin, light-weight and compatible flexible substrate etc. are excellent
Point, in occupation of consequence in display field.
With the development of display technology, people are more and more diversified to the demand of display device, and the shape of display panel is not
The shape of the rule such as rectangle is only limitted to again, and special-shaped display panel is occurred gradually in the visual field of people.Special-shaped display panel is usual
The shape being designed to beyond regular rectangular shape, such as convex polygon, concave polygon, circle, annular etc..In order to the use of person
Appearance sense of touch, lift the aesthetic degree of product, the display area of special-shaped display panel can be designed to special-shaped display area.In order to
Full screen display is realized, it is necessary to make each layer mask plate of special-shaped display area and the shape of abnormity display area is consistent, and
The design difficulty of each layer mask plate of special-shaped display area is larger.
The content of the invention
The present invention provides a kind of display panel and display device, to solve special-shaped display area existing in the prior art
Each layer mask plate design difficulty it is larger the problem of.
Based on the above problem, an embodiment of the present invention provides a kind of display panel, display panel includes display area, periphery
Region, and at least one intermediate region between display area and neighboring area；
Wherein, edge of the intermediate region away from display area includes the first fillet with first curvature radius；Middle area
Domain includes the first circular arc with second curvature radius and the second circle with the 3rd radius of curvature close to the edge of display area
Arc；
Display area and intermediate region include luminescence unit and the pixel defining layer being arranged in array；Luminescence unit bag
Include：First electrode, luminescent layer and the second electrode being stacked, luminescent layer is between first electrode and second electrode；
In display area, pixel defining layer is used to limit luminescence unit；
In intermediate region, pixel defining layer covers the first electrode of luminescence unit.
On the other hand, the embodiment of the present invention additionally provides a kind of display device, including provided in an embodiment of the present invention above-mentioned
Display panel.
The present invention has the beneficial effect that：
Display panel provided in an embodiment of the present invention, has two circles at least certain position at the edge of display area
During arc, intermediate region is set in display panel, edge of the intermediate region away from display area has a fillet, and shows
Region and intermediate region are comprising the luminescence unit and pixel defining layer being arranged in array, since pixel defining layer covers middle area
The first electrode in domain, therefore the luminescence unit of intermediate region can not normally show image, it is real during the use of display panel
Border shows that the region of image is display area；When making the mask plate of each layer of display panel, by display area and intermediate region
The region collectively constituted carries out the design of pixel as an entirety, and to it, has the first circle at the edge of display area
When arc and the second circular arc, it is not necessary to pixel arrangement is carried out according to two circular arcs, but according to first on the edge of intermediate region
Fillet carries out pixel arrangement, by the radian and radius of curvature that input the first fillet, it is possible to achieve the automatic placement of pixel, so that
Reduce the design difficulty of mask plate.
Brief description of the drawings
Fig. 1 is a kind of structure diagram for display panel that the prior art provides；
Fig. 2 is a kind of structure diagram of display panel provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of the luminescence unit of display area provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of the luminescence unit of intermediate region provided in an embodiment of the present invention；
Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are a kind of structure diagram of display panel provided in an embodiment of the present invention；
Fig. 9, Figure 10 are the structure diagram of luminescence unit provided in an embodiment of the present invention；
The structure diagram of Figure 11 display areas provided in an embodiment of the present invention；
Figure 12 is the structure diagram of intermediate region provided in an embodiment of the present invention；
Figure 13 is the structure diagram of display device provided in an embodiment of the present invention.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with attached drawing and implementation
The present invention will be further described for example.However, example embodiment can be implemented in a variety of forms, and it is not understood as limited to
Embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention more comprehensively and completely, and by example embodiment party
The design of formula is comprehensively communicated to those skilled in the art.Identical reference numeral represents same or similar knot in figure
Structure, thus repetition thereof will be omitted.It is described in the present invention expression position and direction word, be using attached drawing as
The explanation that example carries out, but can also make a change as needed, make change and be all contained in the scope of the present invention.The present invention
Attached drawing be only used for signal relative position relation, the thickness at some positions employs the plotting mode lavished praise on oneself in order to understand, attached
Thickness in figure does not represent the proportionate relationship of actual thickness.
It should be noted that detail is elaborated in the following description in order to fully understand the present invention.But this hair
Bright to be implemented with a variety of different from other manner described here, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case of culvert.Therefore the limitation of the invention from following public embodiment.Such as in specification and
Some vocabulary has been used to censure specific components among claim.Those skilled in the art should understand that hardware manufacturer can
Same component can be called with different nouns.This specification and claims are not used as differentiation group with the difference of title
The mode of part, but it is used as the criterion of differentiation with the difference of component functionally.Such as work as in specification in the whole text and claim
Mentioned in "comprising" be an open language, therefore should be construed to " including but not limited to ".Specification subsequent descriptions are real
The better embodiment of the application is applied, so description is for the purpose of the rule for illustrating the application, is not limited to this Shen
Scope please.The protection domain of the application is when subject to appended claims institute defender.It is to be understood that when element such as layer, film,
Region or substrate be referred to as positioned at another element " on " when, it can be on another element, or can insert
Equipped with one or more intermediary elements.
The structure of existing display panel, as shown in Figure 1, Fig. 1 is a kind of structure for display panel that the prior art provides
Schematic diagram, including display area 01 and neighboring area 02；Four angles of wherein display area 01 are designed arc-shaped appearance, and each angle
It is made of two circular arcs；By taking the upper right corner of display area as an example, display area edge has circular arc 101 and circular arc 102.Making
Before display panel as shown in Figure 1, the mask plate of each layer is made according to the shape of display area, includes but not limited to anode layer
Mask plate, luminescent layer mask plate, cathode layer mask plate and pixel defining layer mask plate.In order to ensure that the display panel produced exists
During normal display, the region of actual displayed picture is consistent with the shape of display area 01, therefore, making anode layer mask plate,
When luminescent layer mask plate, cathode layer mask plate and pixel defining layer mask plate, in position corresponding with the angle of display area four,
Need to be designed according to two circular arcs, increase design difficulty.
Also, when in the prior art, there is a circular arc at the edge of display area (or being R angles), making each layer
Mask plate when, input the radius of curvature and radian of circular arc, the figure arrangement in corresponding mask plate can be automatically generated；And aobvious
When showing that the turning in region is made of two circular arcs, the radius of curvature and radian that are not determined due to the camber line of two circular arc compositions,
It can-not be automatically generated, it is necessary to designer is designed manually, so that increase design difficulty, it is larger in pixel quantity to be arranged
In the case of, this is particularly problematic.
In view of this, to solve the above problems, the present invention provides a kind of display panel and display device, to solve aobvious
When showing the corner location in region has two circular arcs, the problem of design difficulty of mask plate is larger.
Optionally, the embodiment of the present invention provides a kind of display panel, which is organic electroluminescence display panel.Such as figure
Shown in 2, Fig. 2 is a kind of structure diagram of display panel provided in an embodiment of the present invention, the display panel of the embodiment of the present invention
Including display area 01, neighboring area 02, and at least one intermediate region between display area 01 and neighboring area 02
03；
Wherein, edge of the intermediate region 03 away from display area 01 includes the first fillet 10 with first curvature radius；
Intermediate region 03 is close to the edge of display area 01 including the first circular arc 11 with second curvature radius and with the 3rd curvature
Second circular arc 12 of radius.
Specifically, in above-mentioned display panel provided in an embodiment of the present invention, display area 01 and intermediate region 03 include
The luminescence unit 20 and pixel defining layer 21 being arranged in array.
Fig. 3 is the structure diagram of the luminescence unit of display area provided in an embodiment of the present invention, and Fig. 4 is implemented for the present invention
The structure diagram of the luminescence unit for the intermediate region that example provides, as shown in Figure 3 and Figure 4, luminescence unit 20 includes：It is stacked
First electrode 201, luminescent layer 202 and second electrode 203, luminescent layer 202 be located at first electrode 201 and second electrode 203 it
Between.
Also, as shown in figure 3, in display area 01, pixel defining layer 21 is used to limit luminescence unit 20；Specifically,
Display area 01, pixel defining layer 21 form multiple openings, and luminescence unit 20 is located in opening, and the region of limited opening is each
The luminous zone of luminescence unit 20, it is contemplated that there are error component in manufacturing process, in order to make the luminescence unit 20 in opening
It can shine, the area of first electrode 201 is generally higher than its corresponding aperture area, and pixel defining layer 21 can cover the first electricity
The edge of pole 201.As shown in figure 4, in intermediate region 03, pixel defining layer 21 covers the first electrode 201 of luminescence unit 20, by
In the first electrode of pixel defining layer covering luminescence unit, there is pixel defining layer, pixel between first electrode and second electrode
Definition layer makes first electrode and second electrode mutually insulated, and therefore, the luminescence unit positioned at intermediate region cannot shine.
Display panel provided in an embodiment of the present invention, has two circles at least certain position at the edge of display area
During arc, intermediate region is set in display panel, edge of the intermediate region away from display area has a fillet, and shows
Region and intermediate region are making the mask of each layer of display panel comprising the luminescence unit and pixel defining layer being arranged in array
During version, using the region that display area and intermediate region are collectively constituted as an entirety, and the design of pixel is carried out to it, such as
Shown in Fig. 2, when there is the first circular arc 11 and the second circular arc 12 at the edge of display area, it is not necessary to carry out picture according to two circular arcs
Element arrangement, but pixel arrangement is carried out according to the first fillet on the edge of intermediate region, by the radian for inputting the first fillet
And radius of curvature, it is possible to achieve the automatic placement of pixel, so as to reduce the design difficulty of mask plate.On the other hand, in viewing area
The edge with two circular arcs in domain increases an intermediate region, and luminescence unit layout area is expanded by original display area
The region collectively formed to display area and intermediate region is opened up, since increased region is by the corresponding border extended of two arcs
Formed to the corresponding edge of a fillet, edge is still on the whole arc, and the area of increased intermediate region has very much
Limit, therefore, the design to other regions while design difficulty is reduced will not have an impact.
Optionally, the pixel defining layer 21 of intermediate region 03 is whole face structure.
Specifically, as shown in figure 4, in intermediate region 03, pixel defining layer 21 covers the electricity of first electrode 201 and first
The edge of pole 201, and the pixel defining layer 21 in intermediate region 03 is whole face structure.In the layout design process of pixel defining layer
In, for the design positioned at the part of intermediate region, it can be covered and realized by whole face, design process is simple.Shown making
During panel, the pixel definition layer segment that the pixel definition layer segment positioned at intermediate region 03 can be located on display area leads to
Cross one-time process to make using a pixel defining layer mask plate, so as to simplify manufacture craft.
Optionally, intermediate region is adjacent with least one corner location of display area.
Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are a kind of structure diagram of display panel provided in an embodiment of the present invention.
Display panel as shown in Figure 5, display panel include display area 01, neighboring area 02 and intermediate region 03, show
It is the camber line being made of two circular arcs to show four corner locations in region 01, such as four intermediate regions 03 in Fig. 5, with it is aobvious
Show that area corners position is adjacent.
Optionally, intermediate region 03 is identical with the arrangement rule of the luminescence unit 20 in display area 01.
Display panel provided in an embodiment of the present invention includes intermediate region 03 and display area 01, intermediate region 03 and display
The arrangement rule of luminescence unit 20 in region 01 is identical, when making the mask plate of each layer of display panel, due to intermediate region
03 is identical with the arrangement rule of luminescence unit in display area 33, being capable of one-time process making intermediate region 03 and display area 01
In each layer mask plate so that simplify mask plate manufacture craft；And the area formed according to intermediate region 03 and display area 01
The edge designs mask plate in domain, the edge of display area 32 is located remotely from due to intermediate region 30 includes first arc chord angle,
When designing each layer mask plate of display panel, pixel arrangement can be carried out according to the first fillet, in the arc of known first fillet
In the case of degree and radius of curvature, it is possible to achieve the automatic placement of pixel, so as to reduce the design difficulty of mask plate.Need to illustrate
, since the shape of the first fillet is regular shape, it will be understood by those skilled in the art that its radian and radius of curvature are easy
Know.
Optionally, the scope of the radian of the first fillet is less than or equal to pi/2 rad.
First fillet 10 of the intermediate region 03 of the display panel of the embodiment of the present invention away from 01 edge of display area can be with
Using following implementation.
In a kind of embodiment, the radian of the first fillet 10 is pi/2 rad；And the edge of intermediate region 03 also wraps
Include the first line segment 13 being connected with the first fillet 10 and second line segment 14, and the first fillet 10 and the first line segment 13 and the second line
Section 14 is tangent.
Display panel as shown in Figure 5, display panel include display area 01, and the right upper corner of display area 01 is by two
Circular arc forms, and is respectively the first circular arc 11 and the second circular arc 12；And the edge of display area 01 further includes and the first circular arc 11
3rd line segment 15 of connection, and the edge of display area 01 further include the 4th line segment 16 being connected with the second circular arc 12, and the 3rd
Edge between 15 and the 4th line segment 16 of line segment is the first circular arc 11 and the second circular arc 12；
Display panel includes intermediate region 03, and the edge of intermediate region 03 is by the first circular arc positioned at 01 edge of display area
11st, the second circular arc 12, the first line segment 13,14 and first fillet 10 of second line segment form；Wherein the first line segment 13 and the 3rd line segment
15 connections, second line segment 14 is connected with the 4th line segment 16, and the first fillet 10 and the first line segment 13 are tangent, the first fillet 10 and
Second line segment 14 is tangent；In the implementation of the first fillet shown in Fig. 5, the radian of the first fillet 10 is pi/2 rad.
It should be noted that in above-mentioned embodiment, the radius of curvature of the first fillet 10 is less than the first circular arc 11
Radius of curvature, the radius of curvature of the first fillet 10 are less than the radius of curvature of the second circular arc 12.
When implementing, the radius of curvature of the first fillet 10 can be according to first circular arc 11 and second at 01 edge of display area
The shape of circular arc 12 is set.
A kind of implementation of first fillet provided in an embodiment of the present invention, the radian of the first fillet 10 is pi/2 rad, and
And first fillet 10 and the first adjacent line segment 13 and second line segment 14 it is tangent, the first fillet 10 is R angles, make display panel
Each layer mask plate when, be designed according to the first fillet 10, input the first fillet radian and radius of curvature after, it is possible to achieve
The automatic placement of pixel, it is not necessary to carry out pixel arrangement manually according still further to the first circular arc 11 and the second circular arc 12, covered so as to reduce
The design difficulty of film version.
In a kind of embodiment, the radian of the first fillet 10 is less than pi/2 rad；And the edge of intermediate region 03 is also
Including the first line segment 13 being connected with the first fillet 10 and second line segment 14, wherein the circle of curvature and first where the first fillet 10
The extended line of line segment 13 intersects, and the circle of curvature where the first fillet 10 intersects with the extended line of second line segment 14.
Display panel as shown in Figure 7, display panel include display area 01, and the right upper corner of display area 01 is by two
Circular arc forms, and is respectively the first circular arc 11 and the second circular arc 12；And the edge of display area 01 further includes and the first circular arc 11
3rd line segment 15 of connection, and the edge of display area 01 further include the 4th line segment 16 being connected with the second circular arc 12, and the 3rd
Edge between 15 and the 4th line segment 16 of line segment is the first circular arc 11 and the second circular arc 12；
Display panel includes intermediate region 03, and the edge of intermediate region 03 is by the first circular arc positioned at 01 edge of display area
11st, the second circular arc 12, the first line segment 13,14 and first fillet 10 of second line segment form；First line segment 13 connects with the 3rd line segment 15
Connect, second line segment 14 is connected with the 4th line segment 16；Wherein, as shown in figure 8, the circle of curvature 324 and first at the place of the first fillet 10
The extended line of line segment 13 intersects, and the circle of curvature 324 where the first fillet 10 intersects with the extended line of second line segment 14.In Fig. 7 institutes
In the implementation of the first fillet shown, the radian of the first fillet 10 is less than pi/2 rad.
It should be noted that in above-mentioned embodiment, the radius of curvature of the first fillet 10 is less than the first circular arc 11
Radius of curvature, the radius of curvature of the first fillet 10 are less than the radius of curvature of the second circular arc 12.
When implementing, the radius of curvature of the first fillet 10 can be according to first circular arc 11 and second at 01 edge of display area
The shape of circular arc 12 is set.
The first implementation of first fillet provided in an embodiment of the present invention, the radian of the first fillet 10 is pi/2 rad,
And the first fillet 10 and the first adjacent line segment 13 and second line segment 14 are tangent, the first fillet 10 is R angles, is making display surface
During each layer mask plate of plate, it is designed according to the first fillet 10, after inputting radian and the radius of curvature of the first fillet, Ke Yishi
The automatic placement of phenomenon element, it is not necessary to pixel arrangement is carried out manually according still further to the first circular arc 11 and the second circular arc 12, so as to reduce
The design difficulty of mask plate.
In one embodiment, in above-mentioned display panel provided in an embodiment of the present invention, as shown in figure 9, Fig. 9 is this hair
The structure diagram for the luminescence unit that bright embodiment provides, display panel, which further includes, is arranged at first electrode 201 and luminescent layer 202
Between hole injection layer 204 and hole transmission layer 205, the electric transmission being arranged between luminescent layer 202 and second electrode 203
Layer 336 and electron injecting layer 207；
Wherein, the edge of hole injection layer 204 and hole transmission layer 205 includes the second circle with the 4th radius of curvature
Angle；The edge of electron transfer layer 336 and electron injecting layer 207 includes the 3rd fillet with the 5th radius of curvature；
Specifically, the circle where second fillet at the edge of hole injection layer 204 and hole transmission layer 205 is in display panel
On orthographic projection, electron transfer layer 336 and electron injecting layer 207 edge the 3rd fillet where circle on a display panel
The orthographic projection of circle on a display panel where first fillet at orthographic projection and intermediate region edge is concentric circles.
Hole injection layer 204, hole transmission layer 205, electron transfer layer 336 and electron injection are being made in the manner described above
During layer 207, the display area 01 and intermediate region 03 of display panel include hole injection layer 204, hole transmission layer 205, electricity
Sub- transmitting layer 3 36 and electron injecting layer 207, and hole injection layer 204, hole transmission layer 205, electron transfer layer 336 and electronics
Implanted layer 207 is whole face structure.
During due to including the camber line that two circular arcs form at the edge of display area, in the prior art, hole is being made
Implanted layer 204, hole transmission layer 205, electron transfer layer 336 and electron injecting layer 207 mask plate when, the inward flange of mask
Be also required to correspondence and be designed as that there are two circular arcs, make the equipment of mask to the resolution at the edge with irregular camber line with
Operable degree is not high, has difficulties when forming the edge of corresponding mask.And the display panel of the embodiment of the present invention also wraps
The intermediate region with the first fillet is included, is making hole injection layer 204, hole transmission layer 205, electron transfer layer 206 and electricity
During the mask plate of sub- implanted layer 207, since the edge of mask is regular camber line, manufacture difficulty is reduced；According to the first fillet
It is designed, while also reduces hole injection layer 204, hole transmission layer 205, electron transfer layer 206 and electron injecting layer 207
The design difficulty of mask plate.
In another embodiment, in above-mentioned display panel provided in an embodiment of the present invention, as shown in Figure 10, Tu10Wei
The structure diagram of luminescence unit provided in an embodiment of the present invention, display panel, which further includes, is arranged at first electrode 201 with shining
Hole injection layer 204 and hole transmission layer 205 between layer 202, the electricity being arranged between luminescent layer 202 and second electrode 203
Sub- transport layer 206；
Wherein, the edge of hole injection layer 204 and hole transmission layer 205 includes the second circle with the 4th radius of curvature
Angle；The edge of electron transfer layer 206 includes the 3rd fillet with the 5th radius of curvature；
Specifically, the circle where second fillet at the edge of hole injection layer 204 and hole transmission layer 205 is in display panel
On orthographic projection, electron transfer layer 206 edge the 3rd fillet where circle orthographic projection on a display panel and centre
The orthographic projection of circle on a display panel where first fillet of edges of regions is concentric circles.
When making hole injection layer 204, hole transmission layer 205 and electron transfer layer 206 in the manner described above, display surface
The display area 01 and intermediate region 03 of plate include hole injection layer 204, hole transmission layer 205 and electron transfer layer 206, and
Hole injection layer 204, hole transmission layer 205 and electron transfer layer 206 are whole face structure.
Since hole injection layer, hole transmission layer, electron transfer layer and electron injecting layer can be whole face structure,
The corresponding mask of above-mentioned four kinds of film layers can be annular, and the hollow space among the annular is corresponding with display area, existing
In technology, when the edge of display area includes the camber line of two circular arcs composition, hole injection layer 204, hole transmission layer 205,
The inward flange (annular inward flange) of the mask plate of electron transfer layer 336 and electron injecting layer 207 is also required to correspondence and is designed as having
There are two circular arcs, the equipment for making mask is not high to the resolution at the edge with irregular camber line and operable degree, in shape
Into corresponding mask edge when have difficulties.And the display panel of the embodiment of the present invention is further included with the first fillet
Between region, hole injection layer 204, hole transmission layer 205, electron transfer layer 206 and electron injecting layer 207 mask plate inner edge
Edge is regular camber line, reduces manufacture difficulty；By hole injection layer 204, hole transmission layer 205, electron transfer layer 206 and electronics
The inward flange of the mask plate of implanted layer 207 is designed as having the first fillet, and the first fillet is regular camber line, easily designed, is reduced
The design difficulty of mask.On the other hand, by hole injection layer 204, hole transmission layer 205, electron transfer layer 206 and electronics
The inward flange of the mask plate of implanted layer 207 is designed as having the first fillet, has two arcs for forming turning compared to inward flange
The mask of line, the versatility higher of the mask, corresponding with the effective display area domain with rounded rectangle shape can be covered
Masterplate shares, and saves process costs.It should be noted that in addition to above two embodiment, in the embodiment of the present invention
The above-mentioned display panel provided, can also only include hole transmission layer between first electrode and luminescent layer, or only include hole note
Enter layer, above two embodiment is to display panel structure provided in an embodiment of the present invention for example, the present invention is real
The other embodiment for applying the display panel structure of example offer will not enumerate herein.
Optionally, intermediate region 03 further includes the thin film transistor (TFT) being electrically connected with luminescence unit 20；Intermediate region further includes
The signal wire being electrically connected with thin film transistor (TFT).
It should be noted that display panel provided in an embodiment of the present invention includes display area 01, due to display area
01 is effective display area domain, therefore, in display area 01 also includes the thin film transistor (TFT) being electrically connected with luminescence unit 20, Yi Jiyu
The signal wire that thin film transistor (TFT) is electrically connected.
The structure diagram of Figure 11 display areas provided in an embodiment of the present invention, display area as shown in figure 11, including
Underlay substrate 04, the thin film transistor (TFT) 22 being successively set on underlay substrate 04, thin film transistor (TFT) 22 is according to successively away from lining
The direction of 04 upper surface of substrate, including：Semiconductor active layer 221, wherein semiconductor active layer 221 are included by adulterating N
Type foreign ion or p type impurity ion and the source region and drain region formed, and positioned at source region and drain region
Between the impurity that undopes channel region；Gate insulator 222, grid 211, layer on semiconductor active layer 221
Between insulating layer 224, source electrode 225 and drain electrode 211, source electrode 225 and drain electrode 211 pass through interlayer insulating film 224 and gate insulator respectively
Contact hole in layer 222 is electrically connected source region and drain region in semiconductor active layer 221.
In the embodiment of the present invention, by setting thin film transistor (TFT) at the same time in intermediate region and being electrically connected with thin film transistor (TFT)
Signal wire, load difference that can be between balanced signal line and between pixel unit, realizes the homogeneity of display effect.
The luminescence unit 20 of display area is formed on thin film transistor (TFT) 22, and luminescence unit 20 is according to away from underlay substrate 01
Direction include successively：First electrode 201, luminescent layer 202, second electrode 203.
Wherein, first electrode 201 is used as anode, and the source area in semiconductor active layer 221 is electrically connected to by contact hole
Domain and drain region；First electrode 201 can be formed by various conductive materials.For example, first electrode 201 can be according to its use
Way is formed as transparency electrode or reflecting electrode；
When first electrode is formed as transparency electrode, first electrode can include tin indium oxide (ITO), indium zinc oxide
(IZO), zinc oxide (ZnO) or indium oxide (In2O3) etc.；When first electrode is formed as reflecting electrode, reflecting layer can be by silver
(Ag), magnesium (Mg), aluminium (Al), platinum (Pt), palladium (Pd), golden (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr) or they
Mixture is formed, and ITO, IZO, ZnO or In2O3 etc. can be formed on the reflecting layer.
Pixel defining layer 21 is located to cover 201 edge of first electrode on planarization layer, for limiting luminescence unit 20.
In one alternative embodiment, the pixel defining layer around the edge of first electrode limits the emitting area of each sub-pixel.Pixel
Definition layer can be by polyimides (PI), polyamide, benzocyclobutene (BCB), acryl resin or phenolic resin etc.
Organic material is formed.
Luminescent layer 202 is located in first electrode 201, this part for being provided with luminescent layer of first electrode 201 does not have
Covered and be exposed by pixel defining layer 21.Luminescent layer 202 can be formed by gas-phase deposition, and luminescent layer is patterned
To be corresponding with each sub-pixel, i.e. corresponding with patterned first electrode, luminescent layer can be by low molecular weight organic material or height
Molecular mass organic material is formed.
Second electrode 203 is used as cathode, on luminescent layer 202；Similar to first electrode 201, second electrode 203 can be with
Be formed as transparency electrode or reflecting electrode；
When second electrode 203 is formed as transparency electrode, there is such as lithium (Li), calcium (Ca), lithium fluoride/calcium (LiF/
Ca), the small compound of the work function of lithium fluoride/aluminium (LiF/Al), aluminium (Al), magnesium (Mg) or combinations thereof can pass through evaporation
Embryo deposit on the light-emitting layer, and ITO, IZO, ZnO or In2O3 etc. transparency electrode formed material can be deposited on this
In compound；
When second electrode 203 is formed as reflecting electrode, can by make in the whole surface of flexible substrates Li, Ca,
LiF/Ca, LiF/Al, Al, Mg or their mixture are evaporated to form second electrode；
First electrode 201 and second electrode 203 are insulated from each other by luminescent layer 202, if in first electrode 201 and second
Apply voltage between electrode 203, then luminescent layer 202 launches visible ray, so as to fulfill the image that can be identified by user.
Figure 12 is the structure diagram of intermediate region provided in an embodiment of the present invention, and display area as shown in figure 12, is wrapped
Underlay substrate 01, the thin film transistor (TFT) being successively set on underlay substrate 01 22 are included, thin film transistor (TFT) 22 is according to remote successively
The direction of 01 upper surface of underlay substrate, including：Semiconductor active layer 221, wherein semiconductor active layer 221 include passing through doping
N-type impurity ion or p type impurity ion and the source region and drain region formed, and positioned at source region and drain region
Between the impurity that undopes channel region；Gate insulator 222, grid 211, layer on semiconductor active layer 221
Between insulating layer 224, source electrode 225 and drain electrode 211, source electrode 225 and drain electrode 211 pass through interlayer insulating film 224 and gate insulator respectively
Contact hole in layer 222 is electrically connected source region and drain region in semiconductor active layer 221.
In the embodiment of the present invention, by setting thin film transistor (TFT) at the same time in intermediate region and being electrically connected with thin film transistor (TFT)
Signal wire, load difference that can be between balanced signal line and between pixel unit, realizes the homogeneity of display effect.Need
It is noted that pixel unit can include luminescence unit and the image element circuit being electrically connected with luminescence unit, image element circuit is by thin
Film transistor is formed, although the luminescence unit positioned at intermediate region does not shine, signal can still be transmitted to luminescence unit
In corresponding image element circuit, the load difference between balanced signal line and between pixel unit can be still played.
The luminescence unit 20 of display area is formed on thin film transistor (TFT) 22, and luminescence unit 20 is according to away from underlay substrate 01
Direction include successively：First electrode 201, luminescent layer 202, second electrode 203.
Wherein, first electrode 201 is used as anode, and the source area in semiconductor active layer 221 is electrically connected to by contact hole
Domain and drain region；First electrode 201 can be formed by various conductive materials.For example, first electrode 201 can be according to its use
Way is formed as transparency electrode or reflecting electrode；
When first electrode is formed as transparency electrode, first electrode can be including ITO, IZO, ZnO or In2O3 etc.；When
When one electrode is formed as reflecting electrode, reflecting layer can be by Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr or theirs is mixed
Compound is formed, and ITO, IZO, ZnO or In2O3 etc. can be formed on the reflecting layer.
Pixel defining layer 21, which is located on planarization layer, covers first electrode 201 edge, and the covering of pixel defining layer 21 the
One electrode 201.In one alternate embodiment, the pixel defining layer around the edge of first electrode limits the hair of each sub-pixel
Penetrate region.Pixel defining layer can be by such as polyimides (PI), polyamide, benzocyclobutene (BCB), acryl resin or phenol
The organic material of urea formaldehyde etc. is formed.
Luminescent layer 202 is located in pixel defining layer 21, and luminescent layer 202 can be formed by gas-phase deposition, luminescent layer
It is patterned as corresponding with each sub-pixel, i.e. corresponding with patterned first electrode, luminescent layer can be organic by low molecular weight
Material or high molecular weight organic materials are formed.
Second electrode 203 is used as cathode, on luminescent layer 202；Similar to first electrode 201, second electrode 203 can be with
Be formed as transparency electrode or reflecting electrode；
When second electrode 203 is formed as transparency electrode, have such as Li, Ca, LiF/Ca, LiF/Al, Al, Mg or they
Combination the small compound of work function can by evaporating embryo deposit on the light-emitting layer, and such as ITO, IZO, ZnO or
The transparency electrode of In2O3 etc. forms material and can be deposited in the compound；
When second electrode 203 is formed as reflecting electrode, can by make in the whole surface of flexible substrates Li, Ca,
LiF/Ca, LiF/Al, Al, Mg or their mixture are evaporated to form second electrode；
Due in first electrode 201 covered with pixel defining layer 21, since pixel defining layer 21 covers luminescence unit 20
First electrode 201, has pixel defining layer between first electrode 201 and second electrode 203, pixel defining layer makes first electrode
201 and 203 mutually insulated of second electrode, therefore, the luminescence unit positioned at intermediate region cannot shine, and can not normally show figure
Picture.
Alternatively, edge of the intermediate region away from display area can also be two sides at one right angle of composition, intermediate region
The region collectively formed with display area is rectangular.Rectangular area set can further between balanced signal line and it is each
Load between pixel.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, and Figure 13 is the embodiment of the present invention
The structure diagram of the display device of offer, as shown in figure 13, including above-mentioned display panel provided in an embodiment of the present invention.This is aobvious
Showing device can be：Mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator etc. are any to be had
The product or component of display function.Other essential parts for the display device are the common skill of this area
Art personnel should be appreciated that what is had, and this will not be repeated here, also should not be taken as limiting the invention.The implementation of the display device can
With referring to the embodiment of above-mentioned organic electroluminescence display panel, overlaps will not be repeated.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (11)
1. a kind of display panel, the display panel includes display area, neighboring area, and positioned at the display area and described
At least one intermediate region between neighboring area；
Wherein, edge of the intermediate region away from the display area includes the first fillet with first curvature radius；Institute
Intermediate region is stated close to the edge of the display area including the first circular arc with second curvature radius and with the 3rd curvature
Second circular arc of radius；
The display area and the intermediate region include luminescence unit and the pixel defining layer being arranged in array；It is described to shine
Unit includes：First electrode, luminescent layer and the second electrode being stacked, the luminescent layer are located at the first electrode and described
Between second electrode；
In the display area, the pixel defining layer is used to limit the luminescence unit；
The first electrode of the luminescence unit is covered in pixel defining layer described in the intermediate region.
2. display panel as claimed in claim 1, it is characterised in that the pixel defining layer of the intermediate region is whole face knot
Structure.
3. display panel as claimed in claim 1, it is characterised in that the scope of the radian of first fillet is to be less than or wait
In pi/2 rad；
The edge of the intermediate region further includes the first line segment being connected with first fillet and second line segment, and described
One fillet and first line segment and the second line segment are tangent.
4. display panel as claimed in claim 1, it is characterised in that the first curvature radius is less than the torsion half
Footpath, and the first curvature radius is less than the 3rd radius of curvature.
5. display panel as claimed in claim 1, it is characterised in that the display panel, which further includes, is arranged at first electricity
Hole injection layer and hole transmission layer between pole and the luminescent layer；
Wherein, the edge of the hole injection layer and the hole transmission layer includes the second fillet with the 4th radius of curvature；
The orthographic projection of circle on said display panel where first fillet, and circle where second fillet is described
Orthographic projection on display panel is concentric circles.
6. display panel as claimed in claim 1, it is characterised in that the display panel, which further includes, is arranged at the luminescent layer
At least one layer in electron transfer layer and electron injecting layer between the second electrode；
Wherein, the edge of the electron transfer layer and/or the electron injecting layer includes the 3rd circle with the 5th radius of curvature
Angle；
The orthographic projection of circle on said display panel where first fillet, and circle where the 3rd fillet is described
Orthographic projection on display panel is concentric circles.
7. display panel as claimed in claim 1, it is characterised in that the intermediate region with it is described in the display area
The arrangement rule of luminescence unit is identical.
8. display panel as claimed in claim 1, it is characterised in that the intermediate region and at least the one of the display area
A corner location is adjacent.
9. display panel as claimed in claim 1, it is characterised in that the intermediate region further includes and luminescence unit electricity
The thin film transistor (TFT) of connection.
10. display panel as claimed in claim 9, it is characterised in that the intermediate region further includes and the film crystal
The signal wire that pipe is electrically connected.
11. a kind of display device, including such as claim 1-10 any one of them display panels.
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| CN201711257892.3A CN108039358B (en) | 2017-11-30 | 2017-11-30 | Display panel and display device |
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| CN108039358B (en) | 2020-09-11 |
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