CN109950414A - A kind of display panel and display equipment - Google Patents
A kind of display panel and display equipment Download PDFInfo
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- CN109950414A CN109950414A CN201910100550.3A CN201910100550A CN109950414A CN 109950414 A CN109950414 A CN 109950414A CN 201910100550 A CN201910100550 A CN 201910100550A CN 109950414 A CN109950414 A CN 109950414A
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Abstract
This application discloses a kind of display panel and display equipment, the display panel includes the fusible packaging body in display panel edge, the display device area inside display panel, the thermal insulation areas between packaging body and display device area.By the above-mentioned means, the application can be avoided electrode temperature distortion or damage, electrode stability is promoted, the service life of display panel is extended.
Description
Technical field
This application involves field of display technology, more particularly to a kind of display panel and display equipment.
Background technique
Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display has self-luminous, bright
The advantages that high, flexible, contrast is high is spent, is more and more widely used.In OLED display, ELVSS current potential is needed
It is transmitted in the OLED device of effective display area (Active Area, AA) by screen body edge anode and cathode overlap joint.If overlap is negative
Pole is closer by the irradiation of glass-encapsulated (Frit) sealing laser facula or apart from laser facula, and it is steady that laser heat will will affect cathode
It is qualitative, so that its pattern is changed, cause overlap joint abnormal, and then influences screen body life time.
Summary of the invention
It is heated to can be avoided electrode mainly solving the technical problems that provide a kind of display panel and display equipment by the application
Deformation or damage promotes electrode stability, extends the service life of display panel.
In order to solve the above technical problems, the technical solution that the application uses is: a kind of display panel is provided, it is described aobvious
Show that panel includes the fusible packaging body in display panel edge, the display device area inside display panel, in envelope
Fill the thermal insulation areas between body and display device area.
Wherein, the width of thermal insulation areas is 0.3~1.5 times of difference between heat radiation width and fusible packaging body width.
Wherein, the dimension scale of heat radiation width and the fusible packaging body width is 2.1:1 to 1.1:1.
Wherein, heat-barrier material and/or reflectorized material are provided in thermal insulation areas.
Wherein, display panel includes the non-display area between thermal insulation areas and display device area, by display device area with
Non-display area it is separated define layer, the flatness layer in non-display area, flatness layer, which at least covers, defines layer and non-display area
Juncture area, electrode layer, electrode layer are at least covered on non-display area and define on layer.
Wherein, the thickness of flatness layer is less than the thickness for defining layer.
Wherein, the material of flatness layer and other organic material phases in the luminescent layer in display device area in addition to luminescent material
Together.
Wherein, non-display area includes and adjacent thereto buffer area peripheral in juncture area, and is in buffer area
Peripheral and adjacent thereto cabling overlap, flatness layer is crossed from display device area to be defined floor and extends to buffer area, electrode layer
Cover cabling overlap.
Wherein, the width dimensions of buffer area and non-display area ratio is 1:3 to 1:4.
Wherein, the cabling material in electrode layer and cabling overlap is in electrical contact.
Wherein, in buffer area, the multiple through-holes for exposing cabling material are formed on flatness layer, electrode layer is through more
A through-hole and cabling material are in electrical contact.
Wherein, the cross sectional dimensions of multiple through-holes is equal to each other.
Wherein, along far from the direction for defining layer, the distribution density of through-hole is gradually reduced.
In order to solve the above technical problems, another technical solution that the application uses is: a kind of display equipment is provided, it is described
Display equipment includes driving circuit and the above-mentioned display panel with driving circuit coupling, wherein driving circuit is used for display
Panel provides driving signal, so that display panel shows image.
The beneficial effect of the application is: being in contrast to the prior art, the application provides a kind of display panel, the display
Thermal insulation areas is set between display device area and encapsulation region in panel, display device material can be made far from the fusible encapsulation of formation
The heat radiation of body prevents display device from deforming or being damaged, and then promotes the stability of display panel, extends the longevity of display panel
Life.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of display panel in the prior art；
Fig. 2 is the schematic diagram of the section structure of the application display panel first embodiment；
Fig. 3 is the schematic diagram of the section structure of the application display panel second embodiment；
Fig. 4 is the partial enlarged view of cabling overlap and buffer area in the application display panel third embodiment；
Fig. 5 is the partial enlarged view of cabling overlap and buffer area in the 4th embodiment of the application display panel；
Fig. 6 is the overlooking structure diagram of the 5th embodiment of the application display panel；
Fig. 7 is the structural schematic diagram that the application shows equipment first embodiment.
Specific embodiment
It is right as follows in conjunction with drawings and embodiments to keep the purpose, technical solution and effect of the application clearer, clear
The application is further described.
The application provides a kind of display panel, which includes viewing area and non-display on the outside of viewing area
Area defines layer for what viewing area and non-display area separated, and the flatness layer in non-display area, flatness layer at least covers and defines layer
With the juncture area of non-display area, electrode layer, electrode layer is at least covered on non-display area and defines on layer.It is flat by being arranged
Layer makes its covering define the juncture area of layer and non-display area, can be formed between layer using flatness layer in electrode layer and defining
Buffering reduces electrode climbing difficulty when forming electrode, avoids lead rupture, and then promote electrode stability, extend display surface
The service life of plate.Wherein, display panel disclosed in the present application can be used for multiple display modes, such as OLED is shown, quantum dot is shown,
Micro-LED is shown.Here it is illustrated so that OLED is shown as an example, but is not limited to the display mode.
Referring to Fig. 2, Fig. 2 is the schematic diagram of the section structure of the application display panel first embodiment.In the embodiment party
In formula, display panel includes defining layer 10, flatness layer 20 and electrode layer 30, defines layer 10 and is used for viewing area and non-display differentiation
It opens, non-display area is in the outside of viewing area, and flatness layer 20 is in non-display area, covers at least and defines layer 10 and non-aobvious
Show that the juncture area in area 20, electrode layer 30 are at least covered on non-display area and define on layer 10.
Wherein, defining layer 10 is the insulating materials with certain thickness and width being arranged around viewing area, for defining
Distinguish viewing area and non-display area.Defining layer 10 can be using inorganic material, such as SiO2, SiNx etc. be made, can also be using having
Machine material such as photoresist etc. is made.And layer pattern is generally defined using etch process formation, cause to be formed by and defines a layer gradient
It is larger.It in display panel, needs to power by electrode layer to viewing area, it is necessary to which electrode layer, which is crossed, defines layer and viewing area electricity
Connection, i.e. electrode layer, which need to cover, defines layer.At this point, will cause and climb when forming electrode layer because the gradient for defining layer is larger
Slope is easy to happen fracture, makes product failure.
In the embodiment, it is provided with a flatness layer in the non-display area, covers it at least and defines layer and non-display area
Juncture area.By forming flatness layer, making it in electrode layer and defining formation buffering between layer, reduce when forming electrode layer
Electrode climbing difficulty, avoids lead rupture, and then promote electrode stability, extends the service life of display panel.
In one embodiment, flatness layer can be made of organic material, and is formed using evaporation process.By this
Mode can fill and lead up the gradient for slowing down and defining and being formed in layer by etching, in vapor deposition flatness layer convenient for being subsequently formed electrode
Layer reduces climbing difficulty.In addition, will form the buffer area of a grade elimination at film layer edge when vapor deposition forms film layer,
Further decrease climbing difficulty.
In one embodiment, other organic materials in the material of flatness layer and the luminescent layer of viewing area in addition to luminescent material
Expect identical.Wherein, luminescent layer includes hole transmission layer, luminous material layer and electron transfer layer, can also include hole injection layer,
Hole blocking layer, electronic barrier layer, one or more layers in electron injecting layer.The material of flatness layer can with hole transmission layer,
Electron transfer layer, hole injection layer, hole blocking layer, the material of electronic barrier layer or electron injecting layer are identical.
In another embodiment, flatness layer can be other layers in the luminescent layer of viewing area in addition to luminous material layer and get over
Cross define layer extend to non-display area formation.Other layers i.e. in luminescent layer in addition to luminous material layer, which can cover, defines layer.It is logical
This mode is crossed, does not have to additional increase making technology, flatness layer can be prepared when forming luminescent layer, reduces process costs.
In one embodiment, the thickness of flatness layer is less than the thickness for defining layer.In this way, flatness layer can be made
It in electrode layer and defines and forms step between layer, make the secondary climbing of electrode layer, reduce climbing difficulty, avoid being broken.In other realities
It applies in mode, flatness layer can also be handled, formed it into from non-display area to the multi-stage stairs for defining layer and increasing step by step,
It allows electrode layer repeatedly to climb, reduces the gradient of single climbing, and then reduce climbing difficulty, avoid being broken.Or form it into from
Non-display area allows electrode layer gently to swash to the slope for defining layer gentle transition, reduces climbing difficulty.
Referring to Fig. 3, Fig. 3 is the schematic diagram of the section structure of the application display panel second embodiment.In the embodiment party
In formula, non-display area include in juncture area periphery and buffer area adjacent thereto, and in buffer area periphery and with
Its adjacent cabling overlap, flatness layer is crossed from viewing area to be defined layer and extends to buffer area, and electrode layer covers cabling overlap joint
Area.
In one embodiment, non-display area extends to cabling overlap from edge of the layer close to non-display area side is defined
Far from the edge for defining layer side；The width dimensions of buffer area and non-display area ratio is 1:3 to 1:4, is set by this ratio
It sets, the gradient of flatness layer end can be slowed down, reduce climbing difficulty, while more spaces can also be reserved and overlapped for cabling,
Improve the performance of display panel.In an application example, the width of buffer area can be 80~120 μm, for example, 80 μm, 100 μm,
120 μm etc..
In one embodiment, the cabling material 40 in electrode layer and cabling overlap is in electrical contact, and realizes electrical connection.Its
In, cabling material can choose material identical with electrode layer material；As electrode layer can be anode or cathode；When electrode layer is
When cathode layer, cabling material can be made of material identical with anode material, or using the material of other production anodes
It is made.On the contrary, cabling material can be made of material identical with cathode material, or be adopted when electrode layer is anode layer
It is made of the material of other production cathodes.
Referring to Fig. 4, Fig. 4 is that the part of cabling overlap and buffer area is put in the application display panel third embodiment
Big figure.In this embodiment, in buffer area, the multiple through-holes 201 for exposing cabling material are formed on flatness layer,
Electrode layer is in electrical contact through multiple through-holes 201 with cabling material.In this way, it is capable of increasing cabling overlap area, is improved
The performance of display panel.In one embodiment, the cross sectional dimensions of multiple through-holes 201 is equal to each other, and can be improved homogeneity.
Referring to Fig. 5, Fig. 5 is that the part of cabling overlap and buffer area is put in the 4th embodiment of the application display panel
Big figure.In this embodiment, in buffer area, the multiple through-holes 201 for exposing cabling material are formed on flatness layer,
Electrode layer is in electrical contact through multiple through-holes 201 and cabling material, and along far from the direction for defining layer, the distribution density of through-hole 201 by
It is decrescence small.In this way, it can be improved homogeneity.
Referring to Fig. 6, Fig. 6 is the overlooking structure diagram of the 5th embodiment of the application display panel.In the embodiment party
In formula, display panel includes the fusible packaging body in display panel edge, the display device inside display panel
Area, the thermal insulation areas between packaging body and display device area.Wherein, fusible packaging body region is encapsulation region, display
Device region is viewing area.By setting thermal insulation areas, the separate heat radiation for forming fusible packaging body of display device material can be made,
It prevents display device from deforming or being damaged, and then promotes the stability of display panel, extend the service life of display panel.
In one embodiment, thermal insulation areas is between non-display area and encapsulation region, and the edge of non-display area has cabling to take
Meet area, metal routing and electrode layer are heated easily-deformable, by the way that thermal insulation areas is arranged, can be avoided metal routing and electrode layer is become by heat
Shape and damage.
In one embodiment, the width of thermal insulation areas difference between heat radiation width and fusible packaging body width
0.3~1.5 times.Wherein, the thermal radiation range, heat radiation when the setting of heat-insulated sector width is considered as making fusible packaging body are strong
Degree；The electrode layer of cabling overlap and thermal conductivity, the heat resistance etc. of cabling material therefor.Make electrode layer and cabling not in heat radiation
In range, or at least make to deform or be damaged after electrode layer and cabling are heated.It is arranged by this width, can makes to walk
The metal routing of line overlap and electrode layer not temperature distortion and damage.Meanwhile also edge non-display area will not be made wide, guarantee
Display effect.
In one embodiment, the dimension scale of heat radiation width and fusible packaging body width is 2.1:1 to 1.1:1,
For example, it may be 1.8:1,1.5:1 etc..It is arranged by this, can be realized completely by heat cure guaranteeing fusible packaging body
Encapsulation function, additionally it is possible to reduce thermal radiation range, reduce the probability of other devices heat damage.
In one embodiment, in the limited situation in display floater frame region, can by reduce packaging body width,
It reduces cabling and overlaps sector width, reduce the modes such as heat radiation width to control heat-insulated sector width.Wherein it is possible to by adjusting encapsulation
Ingredient, the heating location of body material, heating method etc. reduce heat radiation width.
In one embodiment, fusible packaging body is glass packages, and glass packages are by frit by heat cure shape
At.Wherein, frit can be low temperature glass frit, it includes one or more absorption ions for being selected from iron, copper, vanadium and neodymium.From
The energy (such as luminous energy or other radiation energies) of sub- selective absorbing specific wavelength (or its range), to utilize the energy of this wavelength
Source heated frit.Lower fusion temperature can be made it have by adjusting the ingredient of frit, to reduce heating temperature,
And then reduce influence of the heat radiation to other devices.
In one embodiment, laser can be selected to be heating and curing encapsulating material, can control the hot spot of laser most
It measures and is moved along the edge close to encapsulating material, make encapsulating material melting and solidification.To reduce laser heat scan range, reduce heat
Radiate the influence to electrode layer.
In one embodiment, heat-barrier material and/or reflectorized material are provided in thermal insulation areas.Heat-barrier material can obstruct heat
Amount is conducted to cathode or luminescent material.Such as, one layer of silicon oxide or silicon nitride layer can be deposited and carry out buffer protection electrode layer.Reflective material
Material can reflect back heat with reflection laser, can control reflecting angle, heat is reflected back at package material, can
Enough guard electrode layers, additionally it is possible to improve heat utilization efficiency.
On this basis, the application also provides a kind of display equipment, referring to Fig. 7, Fig. 7 is that the application shows equipment first
The structural schematic diagram of embodiment.In this embodiment, display equipment 70 includes driving circuit 701 and display panel 702, is driven
Dynamic circuit 701 couples display panel 702, for providing driving signal to display panel 702, so that the display figure of display panel 702
Picture.Wherein, display panel includes viewing area and the non-display area on the outside of viewing area, and viewing area and non-display area are separated
Layer is defined, the flatness layer in non-display area, flatness layer at least covers the juncture area for defining layer and non-display area, electrode
Layer, electrode layer are at least covered on non-display area and define on layer.
Further, display panel includes the fusible packaging body in display panel edge, in display panel
The display device area in portion, the thermal insulation areas between packaging body and display device area.
Specific structure please refers to the description of above embodiment, and details are not described herein, and the display equipment is in use, have
The advantages that cathode stabilization is not easy to break, long service life.The display equipment can be the display of mobile phone, TV, MP3, VR glasses
Screen etc..
Above scheme, display panel provided herein are provided with flatness layer in non-display area, and flatness layer at least covers
Lid defines the juncture area of layer and non-display area.By the way that flatness layer is arranged, can be defined between layer using flatness layer in electrode layer
Buffering is formed, reduces electrode climbing difficulty when forming electrode, avoids lead rupture.Further, by encapsulation region and aobvious
Show and thermal insulation areas be set between area, makes electrode layer far from the heat radiation for forming fusible packaging body, prevent electrode layer from deforming or being damaged,
And then electrode stability is promoted, extend the service life of display panel.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of display panel characterized by comprising
Fusible packaging body in the display panel edge,
Display device area inside the display panel,
Thermal insulation areas between the packaging body and display device area.
2. display panel according to claim 1, which is characterized in that the width of the thermal insulation areas is the heat radiation width
0.3~1.5 times of difference between the fusible packaging body width.
3. display panel according to claim 2, which is characterized in that the heat radiation width and the fusible packaging body
The dimension scale of width is 2.1:1 to 1.1:1.
4. according to claim 1 to display panel described in any one of 3, which is characterized in that be provided in the thermal insulation areas every
Hot material and/or reflectorized material.
5. display panel according to any one of claims 1 to 4, which is characterized in that the display panel includes:
Non-display area between the thermal insulation areas and the display device area,
The display device area is defined into floor with what the non-display area separated,
Flatness layer in the non-display area, the flatness layer at least cover described in define the friendship of layer Yu the non-display area
Battery limit (BL) domain,
Electrode layer, the electrode layer is at least covered on the non-display area to be defined on layer with described.
6. display panel according to claim 5, which is characterized in that the thickness of the flatness layer defines layer less than described
Thickness.
7. display panel according to claim 5 or 6, which is characterized in that the material of the flatness layer and the display
Other organic materials in the luminescent layer in part area in addition to luminescent material are identical.
8. display panel according to claim 7, which is characterized in that the non-display area includes
It is peripheral and adjacent thereto in the juncture area periphery and buffer area adjacent thereto, and in the buffer area
Cabling overlap,
The flatness layer from the display device area cross it is described define floor and extend to the buffer area,
The electrode layer covers the cabling overlap.
9. display panel according to claim 8, which is characterized in that in the buffer area, on the flat laye
The multiple through-holes for exposing cabling material are formed with, the electrode layer is in electrical contact through the multiple through-hole and the cabling material.
10. a kind of display equipment, which is characterized in that the display equipment includes driving circuit and couples with the driving circuit
The described in any item display panels of claim 1-9, wherein the driving circuit is used to provide driving letter to the display panel
Number, so that the display panel shows image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100550.3A CN109950414A (en) | 2019-01-31 | 2019-01-31 | A kind of display panel and display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100550.3A CN109950414A (en) | 2019-01-31 | 2019-01-31 | A kind of display panel and display equipment |
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| Publication Number | Publication Date |
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| CN109950414A true CN109950414A (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910100550.3A Pending CN109950414A (en) | 2019-01-31 | 2019-01-31 | A kind of display panel and display equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488508A (en) * | 2021-06-17 | 2021-10-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
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Application publication date: 20190628 |