CN108279516A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN108279516A CN108279516A CN201810100736.4A CN201810100736A CN108279516A CN 108279516 A CN108279516 A CN 108279516A CN 201810100736 A CN201810100736 A CN 201810100736A CN 108279516 A CN108279516 A CN 108279516A
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- display panel
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- control circuit
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- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- 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
- H10K59/131—Interconnections, e.g. wiring lines or terminals
Abstract
The invention discloses a kind of display panel and display devices.The display panel includes：Underlay substrate；Control circuit layer on underlay substrate；Positioned at display dielectric layer of the control circuit layer far from underlay substrate side；Control circuit layer includes the first surface close to underlay substrate and the second surface close to display dielectric layer, and underlay substrate includes the third surface far from control circuit layer, and display panel further includes the 4th surface, and second surface is between first surface and the 4th surface；Wherein, the distance between first surface and third surface are the first distance, and the distance between second surface and the 4th surface are second distance；The ratio between first distance and second distance are greater than or equal to 1:1.5, and it is less than or equal to 1.5:1.The embodiment of the present invention solves display panel control circuit in bending and is easy to happen fracture, causes display to occur showing bad problem, realizes the effect for the bendable folding endurance for improving control circuit and display panel.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of display panel and display devices.
Background technology
Currently, display panel is widely used in the electronic equipments such as e-book, mobile phone and tablet computer.With partly leading
The development of body device technology, bent display panel are of increased attention.Bent display panel can be rolled up
At cylindric or other shapes, make user that there is abundanter visual experience and instant packed and transport.
In existing bent display panel, control circuit provides control signal for each electrode in display panel, with
It performs image display.For example, data line and scan line intersection limit multiple pixels, each pixel includes thin film transistor (TFT),
Data line and scan line provide data information and scanning information to thin film transistor (TFT) respectively, control pixel light emission.It is actually using
In the process, since display panel is after frequent bending, the control circuits such as data line, scan line and thin film transistor (TFT) are easy to happen disconnected
It splits, leads to problems such as display panel generate display bad.
Invention content
The present invention provides a kind of display panel and display device, and the bent of control circuit and display panel is improved to realize
The effect of property.
In a first aspect, an embodiment of the present invention provides a kind of display panels, including：
Underlay substrate；
Control circuit layer on the underlay substrate；
Positioned at display dielectric layer of the control circuit layer far from the underlay substrate side；
The control circuit layer includes the first surface close to the underlay substrate and the close to the display dielectric layer
Two surfaces, the underlay substrate include the third surface far from the control circuit layer, and the display panel further includes the 4th table
Face, the second surface is between the first surface and the 4th surface；Wherein,
The distance between the first surface and the third surface are the first distance, the second surface and the described 4th
The distance between surface is second distance；
The ratio between first distance and the second distance are greater than or equal to 1:1.5, and it is less than or equal to 1.5:1.
Second aspect, the embodiment of the present invention additionally provide a kind of display device, including provided in an embodiment of the present invention arbitrary
A kind of display panel.
The embodiment of the present invention includes being situated between close to the first surface of underlay substrate and close to display by the way that control circuit layer is arranged
The second surface of matter layer, underlay substrate include the third surface far from control circuit layer, and display panel further includes the 4th surface, the
Two surfaces are between first surface and the 4th surface；Wherein, the distance between first surface and third surface are the first distance,
The distance between second surface and the 4th surface are second distance；The ratio between first distance and second distance are greater than or equal to 1:1.5
And it is less than or equal to 1.5:1, when display panel is bent, the tension and compressing force that control circuit layer is subject to are reduced, to
It solves display panel control circuit in bending and is easy to happen fracture, cause display to occur showing bad problem, realize
Improve the effect of the bendable folding endurance of control circuit and display panel.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram after display panel bending in Fig. 1；
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 6 is the cross-sectional view of the A-A ' along Fig. 5；
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention, and Fig. 2 is that display panel is curved in Fig. 1
Structural schematic diagram after folding.Referring to Fig. 1, which includes：Underlay substrate 100；Control on underlay substrate 100
Line layer 200；Positioned at display dielectric layer 300 of the control circuit layer 200 far from 100 side of underlay substrate；Control circuit layer 200 wraps
The first surface 210 close to underlay substrate 100 and the second surface 220 close to display dielectric layer 300 are included, underlay substrate 100 wraps
The third surface 130 far from control circuit layer 200 is included, display panel 20 further includes the 4th surface 440, and second surface 220 is located at
Between first surface 210 and the 4th surface 440；Wherein, the distance between first surface 210 and third surface 130 be first away from
From d1, the distance between second surface 220 and the 4th surface 440 are second distance d2；First distance d1 and second distance d2 it
Than being greater than or equal to 1:1.5, and it is less than or equal to 1.5:1.
Optionally, the 4th surface 440 can be the light-emitting surface of display panel 20.
Referring to Fig. 2, to the principle of the embodiment of the present invention by taking display panel 20 is bent to 100 side of underlay substrate as an example
It illustrates.The radius of curvature that underlay substrate 100 is bent is R1, and correspondingly, the radius of curvature that control circuit layer 200 is bent is
R2.The degree that display panel 20 is bent is bigger, and the radius of curvature of each film layer is smaller.In display panel 20, closer to third table
The film layer in face 130, radius of curvature is smaller, suffered by compressing force F2 it is bigger；And closer to the film layer on the 4th surface 440,
Its radius of curvature is bigger, and suffered tension F1 is bigger.
When display panel 20 is bent, control circuit layer 200 poor ductility, bending compared with other film layers is poor, holds
Easily it is damaged.
Studies have shown that the ratio between first distance d1 and second distance d2 is equal to 1:1.5 position in order to control line layer 200 by same
When the state of tension F1 and compressing force F2 that is subject to the critical localisation only changed by the state of compressing force F2.In other words,
The ratio between one distance d1 and second distance d2 is less than 1:When 1.5, control circuit layer 200 is only by compressing force F2；And if the first distance
The ratio between d1 and second distance d2 are more than 1:When 1.5, tension F1 and compressing force F2 that control circuit layer 200 is subject to simultaneously.
Similarly, the ratio between first distance d1 and second distance d2 is equal to 1.5:1 position in order to control line layer 200 by simultaneously
The state of the tension F1 and compressing force F2 that are subject to are to only by the critical localisation of the state of tension F1 transformation.In other words, first away from
It is less than 1.5 from the ratio between d1 and second distance d2:When 1, tension F1 and compressing force F2 that control circuit layer 200 is subject to simultaneously；And if
The ratio between first distance d1 and second distance d2 is more than 1.5:When 1, control circuit layer 200 is only by tension F1.
In above-mentioned technical proposal, it is greater than or equal to 1 by the way that the ratio between first distance d1 and second distance d2 is arranged:1.5, and it is small
In or equal to 1.5:1, that is, setting control circuit layer 200 is located at or close to the center of display panel, such control circuit
The layer 200 tension F1 that is subject to and compressing force F2 can cancel out each other a part, or even cancel out each other completely.With control circuit layer 200
It is compared positioned at other positions, control circuit layer 200 is located at or when close to the center of display panel 20, control circuit layer
200 power that are subject to by bending are smaller, and damage probability is smaller, it is thus possible to improve the bendable folding endurance of display panel.The present invention is real
It applies example and solves existing display panel control circuit in bending and be easy to happen and fracture, cause display panel to generate display bad
The problems such as, achieve the effect that the bendable folding endurance for improving control circuit and display panel.
In view of in order to comply with the development trend of slimming display panel, display dielectric layer 300 in existing display panel
Film layer 400 away from 100 side of underlay substrate is done relatively thin.Illustratively, if display panel is Electronic Paper, this display surface
Display dielectric layer 300 can be whole less than or equal to display panel away from the thickness of the film layer 400 of 100 side of underlay substrate in plate
/ 10th of body thickness (i.e. the distance between third surface 130 and the 4th surface 440), therefore can be ignored.
On this basis, optionally, with continued reference to Fig. 1, display dielectric layer 300 includes the far from control circuit layer 200
Five surfaces 350, the distance between second surface 220 and the 5th surface 350 are third distance d3.
Studies have shown that ignoring display dielectric layer 300 away from the basis of the thickness of the film layer 400 of 100 side of underlay substrate
On, the ratio between the first distance d1 and third distance d3 are equal to 1:1.4 position in order to control line layer 200 by the tension F1 that is subject to simultaneously
State with compressing force F2 is to only by the critical localisation of the transformation of the state of compressing force F2 transformation.First distance d1 and third away from
It is equal to 1.4 from the ratio between d3:1 position in order to control line layer 200 from the state of the tension F1 and compressing force F2 that are subject to simultaneously to only
The critical localisation changed by the state of tension F1.
Therefore, optionally, setting the ratio between the first distance d1 and third distance d3 is greater than or equal to 1:1.4, and be less than or wait
In 1.4:1.The essence being arranged in this way is in the thickness for ignoring display dielectric layer 300 away from the film layer of 100 side of underlay substrate
On the basis of, setting control circuit layer 200 is located at or close to the center of display panel, solves existing display panel and exist
Control circuit, which is easy to happen, when bending fractures, and leads to problems such as display panel generation display bad, has reached raising control circuit
And the effect of the bendable folding endurance of display panel.
On the basis of above-mentioned each technical solution, the material of underlay substrate 100 may include glass, metal and organic poly-
One or more of object is closed, so that underlay substrate 100 has stronger bendable folding endurance.Wherein, if underlay substrate 100
Material be metal, be specifically as follows copper foil.If the material of underlay substrate 100 is organic polymer, it is specifically as follows poly-
Acid imide.Alternatively, underlay substrate 100 may include copper foil and the polyimides that is stacked with copper foil.Setting can be in this way
Enhance the bendable folding endurance of underlay substrate 100.
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Referring to Fig. 3, ignoring display
For dielectric layer on the basis of the thickness of the film layer 400 of underlay substrate side, which further includes buffer layer 500；It is slow
Layer 500 is rushed between underlay substrate 100 and control circuit layer 200；The sum of the thickness of buffer layer 500 and underlay substrate 100 is
First thickness, wherein first thickness can be the first distance d1；The difference of the thickness of first thickness and display dielectric layer 300 it is exhausted
0 is greater than or equal to value, and is less than or equal to 50 μm, the wherein thickness of display dielectric layer 300 can be third distance d3.Setting
Buffer layer 500 and restriction first thickness and the absolute value of the difference of the thickness of display dielectric layer 300 are greater than or equal to 0, and are less than
Or it is equal to 50 μm, control circuit layer 200 can be made to be located on or near the center of display panel 20, further reduce control
The power that line layer 200 processed is subject in bending, improves the bendable folding endurance of control circuit and display panel, will not be to display panel
Display effect impact.In addition, buffer layer 500 also has what is accumulated on control circuit layer 200 in release bending process to answer
The effect of power, and then play a protective role to control circuit layer 200.
Fig. 4 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.In above-mentioned each technical solution
On the basis of, the material of buffer layer 500 includes SiO2And SiNxAt least one of.Referring to Fig. 4, optionally, if buffer layer 500
Material be SiO2And SiNxMixing, the buffer layer 500 be stepped construction, for example, film layer 510 be SiO2Material and film layer 520
For SiNxMaterial.The setting in this way of buffer layer 500 can further decrease the power that control circuit layer 200 is subject in bending.
Optionally, on the basis of above-mentioned each technical solution, the thickness of display dielectric layer 300 be more than or equal to 200 μm,
And it is less than or equal to 500 μm；The thickness of buffer layer 500 be more than or equal to 150 μm, and be less than or equal to 490 μm；Underlay substrate
100 thickness be more than or equal to 10 μm, and be less than or equal to 50 μm.The setting in this way of each thicknesses of layers can make display panel
20 in bending, and the resultant force suffered by control circuit layer 200 is smaller, so as to bear larger bending degree and reach smaller
Radius of curvature.
Studies have shown that in a kind of existing display panel, the thickness of display dielectric layer 300 is 240 μm, buffer layer 500
Thickness is 20 μm, and the thickness of underlay substrate 100 is 40 μm, should when which reaches the maximum bending degree that it can bear
The radius of curvature of display panel is 21mm.And in display panel provided by the present application, the thickness of display dielectric layer 300 can be
240 μm, the thickness of buffer layer 500 can be 220 μm, and the thickness of underlay substrate 100 can be 40 μm, which reaches it
When the maximum bending degree that can be born, the radius of curvature of the display panel is 3mm.Wherein, display panel reaches what it can bear
Maximum bending degree refers to, when being bent to display panel, critical level that display panel can normally be shown.From upper
The result of study in face is it is found that using technical solution provided by the present application, the maximum bending degree bigger that display panel can be born is shown
Show the flexibility of panel more preferably.
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and Fig. 6 is the A-A ' along Fig. 5
Cross-sectional view.Referring to Fig. 5 and Fig. 6, which further includes multi-strip scanning line 230 and multiple data lines 240, is swept
It retouches line 230 and the insulation intersection of data line 240 limits multiple pixels 290, pixel 290 includes at least one thin film transistor (TFT) 250；
Thin film transistor (TFT) 250 includes grid 251, active layer 252, source electrode 253 and drain electrode 254, and grid 251 is electrically connected with scan line 230,
Source electrode 253 is electrically connected with data line 240.Control circuit layer 200 includes scan line 230, data line 240, grid 251, active layer
252, one of source electrode 253 and drain electrode 254 or more persons.The reason of being arranged in this way is, in display panel, display medium
Layer, buffer layer and underlay substrate etc. often have a stronger buckle resistance, and scan line 230, data line 240, grid 251,
Active layer 252, source electrode 253 and 254 these structures of drain electrode are mainly responsible for signal transmission, and buckle resistance is often poor, is aobvious
" short slab " for showing panel, needs to lay special stress on protecting.Setting helps to overcome " short slab " in this way, promotes the flexibility of display panel.
In actual setting, the film layer included by control circuit layer 200 can be determined as needed.Illustratively, if certain
In the display panel of specification, the probability that scan line 230 is broken is higher, and the probability of other structures fracture is relatively low, optionally, control
Line layer 200 only includes 230 place film layer of scan line.If alternatively, in the display panel of another specification, scan line 230, data line
240 and active layer 252 be broken probability it is higher, and other structures fracture probability it is relatively low, optionally, control circuit layer
200 include by 252 place film layer of 230 place film layer of scan line, 240 place film layer of data line and active layer.
It should be noted that in above-mentioned technical proposal, thin film transistor (TFT) 250 can be that bottom gate formula thin film transistor (TFT) can also
For top-gated formula thin film transistor (TFT).
In above-mentioned each technical solution, which can be electronic paper display panel, organic light emitting display panel
And liquid crystal display panel etc., the application is not restricted this.
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Optionally, referring to Fig. 7, display
Panel 20 is electronic paper display panel, and display dielectric layer 300 includes electrocoating film at this time.Electrocoating film includes the electrophoresis grain of multiple electrifications
Sub 390 (including white particle 310 and black track producing particles 320).It is white with positive charge when applying a negative electric field in electrocoating film both sides
Particle 310 is moved to electrocoating film close to the side of electric field cathode under the action of electric field, and the particle with negative electrical charge moves
To the other side of electrocoating film.If electrocoating film is light-emitting surface close to the side of electric field cathode, light-emitting surface can be displayed in white.Similarly, when
When electrocoating film both sides apply a positive electric field, the black track producing particle 320 with negative electrical charge is moved to electrocoating film under the action of electric field
Close to the side of electric field anode, and the particle with positive charge is moved to the other side of electrocoating film.If electrocoating film is close to electric field
The side of anode is light-emitting surface, and light-emitting surface can show black.In this way, electronic paper display panel is by electric field controls electrophoresis particle
The display of image is realized to control the reflection of light in the position of 390 movements.
With continued reference to Fig. 7, which further includes public electrode 720, and public electrode 720 is located at display dielectric layer
300 sides far from underlay substrate 100 provide electric field for electrophoresis particle 390.Optionally, the material of public electrode 720 is ITO
(tin indium oxide).
With continued reference to Fig. 7, which further includes protecting film 710, and it is separate that protecting film 710 is located at public electrode 720
The side of display dielectric layer 300, protecting film 710 cover public electrode 720, and playing prevents the protections such as the abrasion of public electrode 720 from making
With.
Illustratively, studies have shown that the thickness of each film layer of display panel could be provided as in Fig. 7：The thickness of protecting film 710
Thickness for 30um, public electrode 720 isThe thickness of display dielectric layer 300 is 300um, and the thickness of pixel electrode 311 isThe thickness of buffer layer 500 is 250um, and the thickness of underlay substrate 100 is 50um, and the thickness of grid 251 isHave
The thickness of active layer 252 isSource electrode 253 and the thickness of drain electrode 254 areBetween grid 251 and active layer 252
The thickness of insulating layer isDrain electrode 254 and pixel electrode 311 between thickness beIn the present embodiment, it protects
The thickness of film 710 and public electrode 720 is relatively thin compared with the thickness of display dielectric layer 300 and buffer layer 500.Therefore, it is
Facilitate and understand the embodiment of the present invention, the thickness for ignoring protecting film 710 and public electrode 720 can be seen that control circuit layer 200
Positioned at the center of entire display panel, the power that control circuit layer 200 is subject to by bending is smaller, and damage probability is smaller, because
And the bendable folding endurance of display panel can be improved.Wherein, compared with other film layers in control circuit layer 200, active layer 252 exists
Display panel is more easily broken off during bending, and is " short slab " in control circuit layer 200.The embodiment of the present invention is by active layer
252 are arranged in the position at the center of control circuit layer 200, further improve the flexure of control circuit layer 200 and display panel
Property.
Fig. 8 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Optionally, referring to Fig. 8, display
Panel 20 is organic LED display panel, and display dielectric layer 300 includes first electrode 11, second electrode 13 and setting
Luminescent layer 12 between first electrode 11 and second electrode 13.Optionally, first electrode 11 is cathode, and second electrode 13 is sun
Pole.Alternatively, second electrode 13 is cathode, first electrode 11 is anode.
Illustratively, with first electrode 11 it is below cathode, for second electrode 13 is anode, to the display panel 20
Displaying principle illustrates.Referring to Fig. 8, when performing image display, to the second electrode 13 (i.e. anode) of the display panel 20
Apply a bias voltage between first electrode 11 (i.e. cathode), hole and electronics break through interface energy barrier, respectively to luminescent layer 12
Migration, on luminescent layer 12, the compound generation exciton of electrons and holes, exciton is unstable, gives off energy, and transfers energy to hair
The molecule of organic luminescent substance, makes it from ground state transition to excitation state in photosphere 12.Excitation state is very unstable, excited molecule from swash
Hair state returns to ground state, radiation transistion and generate photon, give off energy, shine to light emission side, and then form image to be shown.
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Optionally, referring to Fig. 9, this is aobvious
Show that panel 20 is liquid crystal display panel.Liquid crystal display panel includes array substrate 31, color membrane substrates 32 and is set to the array
Display dielectric layer 300 between substrate 31 and color membrane substrates 32, wherein display dielectric layer 300, including liquid crystal layer 15.
With continued reference to Fig. 9, several data lines and scan line (being not shown in Fig. 9) are integrated in array substrate 31, they hang down
Directly it is staggered to form several pixel units.Each pixel unit includes mainly the components such as pixel electrode 311 and thin film transistor (TFT) 250.
Drive signal is provided to scan line by driving circuit (being not shown in Fig. 9), the work shape of thin film transistor (TFT) 250 can be controlled
State, the drive signal writing pixel electrode 311 in time provide data line so that pixel electrode 311 and public electrode
Electric field is formed between 720.Under the action of the electric field, liquid crystal molecule in liquid crystal layer 15 overturning, to reach shading and light transmission
Purpose, and then form image to be shown.It should be noted that since liquid crystal display panel needs to shine by backlight module,
In actual setting, underlay substrate 100 and buffer layer 500 should select translucent material to make.
The embodiment of the present invention also provides a kind of display device.Figure 10 is a kind of display device provided in an embodiment of the present invention
Structural schematic diagram.Referring to Figure 10, which includes any one display panel 20 provided in an embodiment of the present invention.
Display device provided in an embodiment of the present invention is located at underlay substrate and display dielectric layer by the way that control circuit layer is arranged
Between；Control circuit layer includes the first surface close to underlay substrate and the second surface close to display dielectric layer, underlay substrate
Include the third surface far from control circuit layer, display panel further includes the 4th surface, and second surface is located at first surface and the
Between four surfaces；The distance between first surface and third surface be the first distance, between second surface and the 4th surface away from
From for second distance；The ratio between first distance and second distance are greater than or equal to 1:1.5, and it is less than or equal to 1.5:1, that is, setting
Control circuit layer is located at or close to the center of display panel 20, the tension and compressing force meeting that such control circuit layer is subject to
It cancels out each other a part, or even cancels out each other completely.Compared with control circuit layer is positioned at other positions, control circuit layer be located at or
When person is close to the center of display panel 20, the power that control circuit layer is subject to by bending is smaller, and damage probability is smaller, thus
The bendable folding endurance of display panel can be improved.The embodiment of the present invention solves display panel control circuit in bending and is easy to happen
Fracture, leading to problems such as display panel generate, display is bad, has reached the bendable folding endurance for improving control circuit and display panel
Effect.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
1. a kind of display panel, which is characterized in that including：
Underlay substrate；
Control circuit layer on the underlay substrate；
Positioned at display dielectric layer of the control circuit layer far from the underlay substrate side；
The control circuit layer includes the first surface close to the underlay substrate and the second table close to the display dielectric layer
Face, the underlay substrate include the third surface far from the control circuit layer, and the display panel further includes the 4th surface, institute
Second surface is stated between the first surface and the 4th surface；Wherein,
The distance between the first surface and the third surface are the first distance, the second surface and the 4th surface
The distance between be second distance；
The ratio between first distance and the second distance are greater than or equal to 1:1.5, and it is less than or equal to 1.5:1.
2. display panel according to claim 1, which is characterized in that
The display dielectric layer includes the 5th surface far from the control circuit layer, the second surface and the 5th surface
The distance between be third distance, first distance and the third ratio of distances constant are greater than or equal to 1:1.4, and be less than or wait
In 1.4:1.
3. display panel according to claim 2, which is characterized in that further include buffer layer；
The buffer layer is between the underlay substrate and the control circuit layer；
The sum of thickness of the buffer layer and the underlay substrate is first thickness；
The first thickness and the absolute value of the difference of the thickness of the display dielectric layer are greater than or equal to 0, and are less than or equal to 50 μ
m。
4. display panel according to claim 3, which is characterized in that
The thickness of the display dielectric layer be more than or equal to 200 μm, and be less than or equal to 500 μm；
The thickness of the buffer layer be more than or equal to 150 μm, and be less than or equal to 490 μm；
The thickness of the underlay substrate be more than or equal to 10 μm, and be less than or equal to 50 μm.
5. display panel according to claim 1, which is characterized in that further include multi-strip scanning line and multiple data lines, institute
It states scan line and data line insulation intersection limits multiple pixels, the pixel includes at least one thin film transistor (TFT)；
The thin film transistor (TFT) includes grid, active layer, source electrode and drain electrode, and the grid is electrically connected with the scan line, described
Source electrode is electrically connected with the data line；
The control circuit layer includes one of the scan line, data line, grid, active layer, source electrode and described drain electrode
Or more persons.
6. display panel according to claim 1, which is characterized in that the material of the underlay substrate includes glass, metal
And one or more of organic polymer.
7. display panel according to claim 3, which is characterized in that the material of the buffer layer includes SiO2And SiNx
At least one of.
8. display panel according to claim 1, which is characterized in that the display panel is electronic paper display panel, institute
It includes electrocoating film to state display dielectric layer, and the electrocoating film includes the electrophoresis particle of multiple electrifications.
9. display panel according to claim 8, which is characterized in that the display panel further includes public electrode, described
Public electrode is located at side of the display dielectric layer far from the underlay substrate.
10. display panel according to claim 9, which is characterized in that the display panel further includes protecting film, described anti-
Cuticula is located at side of the public electrode far from the display dielectric layer, and the protecting film covers the public electrode.
11. display panel according to claim 1, which is characterized in that
The display panel is organic LED display panel, and the display dielectric layer includes organic luminous layer.
12. display panel according to claim 1, which is characterized in that
The display panel is liquid crystal display panel, and the display dielectric layer includes layer of liquid crystal molecule.
13. a kind of display device, which is characterized in that including the display panel described in any one of claim 1-12.
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| CN201810100736.4A CN108279516B (en) | 2018-02-01 | 2018-02-01 | Display panel and display device |
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| CN108279516B CN108279516B (en) | 2021-10-15 |
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