CN108987608A - OLED display panel and its manufacturing method, display device - Google Patents

OLED display panel and its manufacturing method, display device Download PDF

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Publication number
CN108987608A
CN108987608A CN201810821373.3A CN201810821373A CN108987608A CN 108987608 A CN108987608 A CN 108987608A CN 201810821373 A CN201810821373 A CN 201810821373A CN 108987608 A CN108987608 A CN 108987608A
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CN
China
Prior art keywords
display panel
oled display
heat
support column
conducting layer
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Granted
Application number
CN201810821373.3A
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Chinese (zh)
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CN108987608B (en
Inventor
李云泽
杨妮
李少茹
齐智坚
许亨艺
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BOE Technology Group Co Ltd
Chongqing BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chongqing BOE Optoelectronics Technology Co Ltd
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Priority to CN201810821373.3A priority Critical patent/CN108987608B/en
Publication of CN108987608A publication Critical patent/CN108987608A/en
Application granted granted Critical
Publication of CN108987608B publication Critical patent/CN108987608B/en
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/87Arrangements for heating or cooling
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/805Electrodes
    • H10K50/82Cathodes
    • H10K50/822Cathodes characterised by their shape
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • H10K50/842Containers
    • H10K50/8428Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

This application discloses a kind of OLED display panel and its manufacturing methods, display device, belong to field of display technology.OLED display panel includes: the backboard and cover board being oppositely arranged, and cover board includes: the first underlay substrate, and is arranged on the first underlay substrate towards the heat-conducting layer of backboard side;Backboard includes: the second underlay substrate, it is arranged on the second underlay substrate towards multiple object support columns of cover board side and multiple anode blocks, light-emitting block on anode block is set, and the cathode pattern on multiple object support columns and light-emitting block is set, the part being located on object support column in cathode pattern is contacted with heat-conducting layer.The case where the application can overheat to avoid OLED display panel, the application are used for OLED display panel.

Description

OLED display panel and its manufacturing method, display device
Technical field
This application involves field of display technology, in particular to a kind of OLED display panel and its manufacturing method, display device.
Background technique
With the development of display technology, Organic Light Emitting Diode (English: Organic Light-Emitting Diode; Referred to as: OLED) display device with preferable display effect due to being widely used.
OLED display panel in OLED display generally includes: the backboard and cover board being oppositely arranged.The backboard includes: Multiple anode blocks on underlay substrate are arranged in underlay substrate, and the light-emitting block on each anode block is arranged in, and covering is owned The cathode pattern of light-emitting block.OLED display when displaying an image, can apply cathode voltage to cathode pattern, and to each Anode block applies anode voltage, so that the light-emitting block in each pixel unit is sent out under the action of cathode voltage and anode voltage Light.
But since the light-emitting block in OLED display panel is easier to generate heat when luminous, and the more difficult heat dissipation of light-emitting block, because This, the case where be easy to causeing OLED display panel to overheat.
Summary of the invention
This application provides a kind of OLED display panel and its manufacturing methods, display device, can be to avoid OLED display surface The case where plate overheats, the technical solution is as follows:
On the one hand, a kind of OLED display panel is provided, the OLED display panel includes: the backboard and lid being oppositely arranged Plate,
The cover board includes: the first underlay substrate, and is arranged on first underlay substrate towards the backboard one The heat-conducting layer of side;
The backboard includes: the second underlay substrate, is arranged on second underlay substrate towards the multiple of cover board side Object support column and multiple anode blocks are arranged in the light-emitting block on the anode block, and are arranged in the multiple object support Cathode pattern on column and the light-emitting block, be located in the cathode pattern part on the object support column with it is described thermally conductive Layer contact.
Optionally, the material of the heat-conducting layer is conductive material, the OLED display panel further include: control unit,
Described control unit is connect with the heat-conducting layer, voltage is adjusted for applying to the heat-conducting layer, described in adjustment Voltage on cathode pattern.
Optionally, the backboard further include:
Pixel circuit layer on second underlay substrate is set;
Pixel defining layer on the pixel circuit layer and for limiting multiple pixel regions is set;
Wherein, the anode block, the multiple mesh are provided in each pixel region on the pixel circuit layer Support column is marked to be arranged in the pixel defining layer.
Optionally, the heat-conducting layer is transparent, and the light-emitting block is used for the direction far from second underlay substrate It shines;
Alternatively, the heat-conducting layer is in nontransparent shape, the light-emitting block is used for the direction close to second underlay substrate It shines.
Optionally, the multiple pixel region array is arranged, the multiple object support columns being arranged in the pixel defining layer Array arrangement, and there are one-row pixels region, adjacent any two column target branch between adjacent any two rows object support column There are two column pixel regions between dagger.
Optionally, the backboard further include:
At least one Auxiliary support column in the pixel defining layer is set, and the Auxiliary support column with it is described thermally conductive Layer contact.
Optionally, the material of the object support column is identical as the material of the Auxiliary support column.
On the other hand, a kind of manufacturing method of OLED display panel is provided, which is characterized in that the OLED display panel For above-mentioned OLED display panel, which comprises
Heat-conducting layer is formed on the first underlay substrate, to obtain cover board;
Multiple object support columns and multiple anode blocks are formed on the second underlay substrate;
Light-emitting block is formed on the anode block;
Cathode pattern is formed on the multiple object support column and the light-emitting block, to obtain backboard;
The cover board and the backboard are oppositely arranged, so that being located on the object support column in the cathode pattern Part contacted with the heat-conducting layer.
Optionally, the material of the heat-conducting layer is conductive material, the method also includes:
Control unit is connect with the heat-conducting layer;
Wherein, described control unit, which is used to apply to the positive heat-conducting layer, adjusts voltage, to adjust on the cathode pattern Voltage.
Another aspect provides a kind of display device, which is characterized in that the display device includes: that above-mentioned OLED is shown Panel.
Due to being provided with object support column in OLED display panel provided by the present application, in backboard, and cathode pattern covers The object support column, and contacted under the supporting role of object support column with the heat-conducting layer in cover board.It is thermally conductive due to heat-conducting layer Effect is preferable, and heat-conducting layer is contacted with cathode pattern, therefore, when light-emitting block shines the heat that generates can by cathode pattern and Heat-conducting layer carry out it is thermally conductive, the case where so as to avoid OLED display panel from overheating.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is a kind of structural schematic diagram of OLED display panel provided in an embodiment of the present invention;
Fig. 2 is the local structure top view of OLED display panel in a kind of Fig. 1 provided in an embodiment of the present invention;
Fig. 3 is the structural schematic diagram of another OLED display panel provided in an embodiment of the present invention;
Fig. 4 is the local structure top view of OLED display panel in a kind of Fig. 3 provided in an embodiment of the present invention;
Fig. 5 is a kind of flow chart of the manufacturing method of OLED display panel provided in an embodiment of the present invention;
Fig. 6 is the flow chart of the manufacturing method of another OLED display panel provided in an embodiment of the present invention;
Fig. 7 is a kind of manufacturing process schematic diagram of OLED display panel provided in an embodiment of the present invention;
Fig. 8 is the manufacturing process schematic diagram of another OLED display panel provided in an embodiment of the present invention;
Fig. 9 is the manufacturing process schematic diagram of another OLED display panel provided in an embodiment of the present invention;
Figure 10 is the manufacturing process schematic diagram of another OLED display panel provided in an embodiment of the present invention;
Figure 11 be another embodiment of the present invention provides a kind of OLED display panel manufacturing process schematic diagram;
Figure 12 be another embodiment of the present invention provides another OLED display panel manufacturing process schematic diagram;
Figure 13 be another embodiment of the present invention provides another OLED display panel manufacturing process schematic diagram.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application embodiment party Formula is described in further detail.
OLED display panel using more, but since the light-emitting block in OLED display panel is easier to send out when luminous Heat, and since the pixel defining layer around light-emitting block is usually the poor organic material of thermal conductivity, light-emitting block is more difficult to be dissipated Heat, the case where be easy to causeing OLED display panel to overheat.
In addition, the OLED display panel in OLED display usually can also include: control unit, control unit and every A light-emitting block is connected with cathode pattern.When displaying an image, control unit can apply yin to cathode pattern to OLED display Pole tension, and apply anode voltage to each anode block, so that the light-emitting block in each pixel unit is in cathode voltage and sun It shines under the action of pole tension.But since the resistance of cathode pattern is larger, cause to cover each hair in cathode pattern There is deviation in the cathode voltage that the part of photosphere is applied, to influence the normal display of OLED display.
The embodiment of the invention provides a kind of OLED display panel, which, which can reduce in cathode pattern, covers The case where covering the deviation for the voltage that the part of each luminescent layer is applied, and OLED display panel avoided to overheat.
Fig. 1 is a kind of structural schematic diagram of OLED display panel provided in an embodiment of the present invention, as shown in Figure 1, OLED is aobvious Show that panel 0 may include: the cover board being oppositely arranged and backboard (not marking in Fig. 1).
Cover board includes: the first underlay substrate 011, and leading towards backboard side on the first underlay substrate 011 is arranged in Thermosphere 012;
Backboard includes: the second underlay substrate 021, and multiple mesh on the second underlay substrate 021 towards cover board side are arranged in Support column 022 and multiple anode blocks 023 are marked, the light-emitting block 024 on anode block 023 is set, and is arranged in multiple target branch Cathode pattern 025 on dagger 022 and light-emitting block 024, part and the lid being located in cathode pattern 025 on object support column 022 Heat-conducting layer 012 in plate contacts.It should be noted that illustrating only 023, light-emitting block 024 and one of an anode block in Fig. 1 A object support column 022.
In conclusion being provided with object support column in OLED display panel provided in an embodiment of the present invention, in backboard, and yin Pole figure case covers the object support column, and contacts under the supporting role of object support column with the heat-conducting layer in cover board.Due to leading The heat-conducting effect of thermosphere is preferable, and heat-conducting layer is contacted with cathode pattern, and therefore, the heat that light-emitting block generates when shining can pass through Cathode pattern and heat-conducting layer carry out it is thermally conductive, the case where so as to avoid OLED display panel from overheating.
Optionally, the material of heat-conducting layer 012 can be conductive material.The OLED display panel can also include control unit (not shown in figure 1), control unit can be connect with heat-conducting layer 012, voltage be adjusted for applying to heat-conducting layer 012, with adjustment Voltage on cathode pattern 025, so that the voltage of the part contacted on cathode pattern 025 with heat-conducting layer 012 is adjusted to thermally conductive Voltage in layer 012.Also, due to the conductive material that heat-conducting layer 012 is flood, the resistance of heat-conducting layer 012 is smaller, thermally conductive The voltage deviation of each position is smaller in layer 012, so, it will be able to mitigate and cover each light-emitting block in cathode pattern 025 The deviation for the voltage that 024 part is applied improves the display effect of OLED display panel.
Optionally, control unit can also be all connected with anode block 023 and cathode pattern 025, be used for anode block 023 Apply anode voltage, applies cathode voltage to cathode pattern 025.
Optionally, control unit can be set on backboard, and sealant Y is also provided between backboard and cover board, control Unit processed can be connect by conductive ion in sealant or metal ball with the heat-conducting layer 012 on cover board.
With continued reference to FIG. 1, the backboard can also include: the pixel circuit layer being arranged on the second underlay substrate 021 026;Pixel defining layer 027 on pixel circuit layer 026 and for limiting multiple pixel region A is set;Wherein, pixel electricity An anode block 023 is provided in each pixel region A on road floor 027, multiple object support columns 022 are arranged at pixel circle In given layer 027, pixel circuit layer 027 may include multiple pixel circuits, and each pixel circuit is connect with an anode block, control Unit processed can be connect by the pixel circuit with the anode block, and apply anode voltage to the anode block.
Optionally, heat-conducting layer 012 can be transparent (such as the material of heat-conducting layer 012 be Cu, Al or other electrical and thermal conductivity The good metal of energy), light-emitting block 024 can be used for shining to the direction far from the second underlay substrate 021 at this time, at this point, the OLED Display panel 0 can be top light emitting-type display panel.Alternatively, heat-conducting layer 012 can be in nontransparent shape, light-emitting block 024 can be used It shines in the direction close to the second underlay substrate 021, the OLED display panel 0 can be bottom light emitting-type display panel at this time. It that is to say, OLED display panel provided in an embodiment of the present invention can be used for pushing up light emitting-type display panel, can be used for bottom hair The flexibility of light display panel, OLED display panel provided in an embodiment of the present invention is higher.
Optionally, Fig. 2 is the local structure top view of OLED display panel in a kind of Fig. 1 provided in an embodiment of the present invention, As shown in Fig. 2, the multiple pixel region A that limit of pixel defining layer 027 can be arranged in pixel defining layer 027 with array arrangement Multiple object support columns 022 can also be with array arrangement.And there are a line pictures between adjacent any two rows object support column 022 Plain region A, there are two column pixel region A between adjacent any two column object support column 022.
Optionally, Fig. 3 is the structural schematic diagram of another OLED display panel provided in an embodiment of the present invention, such as Fig. 3 institute Show, on the basis of Fig. 1, backboard can also include: at least one the Auxiliary support column 028 being arranged in pixel defining layer 027, And Auxiliary support column 028 can be contacted with the heat-conducting layer 012 in cover board.It that is to say, in OLED display panel shown in Fig. 3, Cover board and backboard can be supported jointly by object support column 022 and Auxiliary support column 028, so as to improve OLED The stability of display panel.
Optionally, the material of object support column 022 can be identical as the material of Auxiliary support column 028, so, in picture Element, which defines, can be formed simultaneously object support column 022 and Auxiliary support column 028 on layer 027.It is exemplary, can by spin-coating method or The method of person's inkjet printing forms object support column 022 and Auxiliary support column 028 in pixel defining layer 027.
Further, Fig. 4 is that the partial structurtes of OLED display panel in a kind of Fig. 3 provided in an embodiment of the present invention are overlooked Figure, as shown in figure 4, multiple pixel region A can be with array arrangement, multiple object support columns 022 for being arranged in pixel defining layer 027 The Auxiliary support column 028 of multiple array arrangements can be set in pixel defining layer 027 for array arrangement.Wherein, adjacent any There are one-row pixels region A between two row object support columns 022, there are two between adjacent any two column object support column 022 Column pixel region A, there are one-row pixels region A between adjacent any two rows Auxiliary support column 028, and Auxiliary support column 028 It is intervally arranged one by one on column arragement direction X with object support column 022.
OLED display panel can be aobvious for the OLED display panel of active matrix drive or the OLED of passive matrix drive Show panel, the embodiment of the present invention is not construed as limiting this.
In conclusion being provided with object support column in OLED display panel provided in an embodiment of the present invention, in backboard, and yin Pole figure case covers the object support column, and contacts under the supporting role of object support column with the heat-conducting layer in cover board.Due to leading The heat-conducting effect of thermosphere is preferable, and heat-conducting layer is contacted with cathode pattern, and therefore, the heat that light-emitting block generates when shining can pass through Cathode pattern and heat-conducting layer carry out it is thermally conductive, the case where so as to avoid OLED display panel from overheating.
Fig. 5 is a kind of flow chart of the manufacturing method of OLED display panel provided in an embodiment of the present invention, which shows Panel can be Fig. 1 or OLED display panel shown in Fig. 3, as shown in figure 5, the manufacturing method of the OLED display panel can wrap It includes:
Step 501 forms heat-conducting layer on the first underlay substrate, to obtain cover board.
Step 502 forms multiple object support columns and multiple anode blocks on the second underlay substrate.
Step 503 forms light-emitting block on anode block.
Step 504 forms cathode pattern on multiple object support columns and light-emitting block, to obtain backboard.
Cover board and backboard are oppositely arranged by step 505 so that in cathode pattern be located at object support column on part with Heat-conducting layer contact.
In conclusion being provided with mesh in backboard in OLED display panel manufactured by method provided in an embodiment of the present invention Mark support column, and cathode pattern covers the object support column, and under the supporting role of object support column with it is thermally conductive in cover board Layer contact.Since the heat-conducting effect of heat-conducting layer is preferable, and heat-conducting layer is contacted with cathode pattern, and therefore, light-emitting block generates when shining Heat can be carried out by cathode pattern and heat-conducting layer it is thermally conductive, so as to the feelings for avoiding OLED display panel from occurring overheating Condition.
Fig. 6 is the flow chart of the manufacturing method of another OLED display panel provided in an embodiment of the present invention, and the OLED is aobvious Show that panel can be OLED display panel shown in FIG. 1, as shown in fig. 6, the manufacturing method of the OLED display panel may include:
Step 601 forms heat-conducting layer on the first underlay substrate, to obtain cover board.
As shown in fig. 7, in step 601, the sides such as sputtering, vapor deposition or printing can be passed through on the first underlay substrate 011 Formula forms heat-conducting layer 012, and the material of the heat-conducting layer 012 can be conductive material, such as copper, aluminium or tin indium oxide conductive and heat-conductive material Matter.
Step 602 forms pixel circuit layer on the second underlay substrate.
As shown in figure 8, in step 602 pixel can be formed using multiple patterning processes on the second underlay substrate 021 Circuit layer 026, which may include the pixel circuit to connect with each anode, and each pixel circuit can To include multiple thin film transistor (TFT)s and at least one capacitor.
Step 603 forms pixel confining layer for limiting multiple pixel regions on pixel circuit layer.
As shown in figure 9, in step 603 pixel confining layer can be formed on the pixel circuit layer 026 formed 027.When forming the pixel confining layer 027, pixel can be formed first on pixel circuit layer 026 and limits material layers, then, It limits material layers to the pixel using a patterning processes to handle, to obtain limiting the pixel confining layer of pixel region A.
An anode block is formed in step 604, each pixel region on pixel circuit layer.
As shown in Figure 10, after forming pixel confining layer 027, multiple pixel regions can be determined, later, so that it may An anode block 023 is formed in each pixel region A, and each anode block 023 can be with one in pixel circuit layer 026 Pixel circuit connection.
Step 605 forms light-emitting block on anode block.
As shown in figure 11, after forming multiple anode blocks 023, one can be formed on each anode block 023 and is shone Block 024, the material of each light-emitting block 024 can be electroluminescence material matter, and a light-emitting block 024 is used to issue a kind of color Light (such as feux rouges, green light, blue light or white light).
Step 606 forms multiple object support columns in pixel confining layer.
As shown in figure 12, after forming pixel confining layer, multiple target branch can also be formed in pixel confining layer 027 Dagger 022 such as forms the object support column 022 using the methods of spin-coating method or inkjet printing.
When this method for also needing in pixel confining layer when manufacturing OLED display panel shown in Fig. 3 in step 606 Upper at least one Auxiliary support column of formation.The Auxiliary support column can be identical as the material of object support column.
Step 607 forms cathode pattern on multiple object support columns and light-emitting block, to obtain backboard.
It as shown in figure 13, can be in the object support column 027 and light-emitting block after forming object support column and light-emitting block Patterning processes covered cathode pattern 025 is used on 024.
Cover board and backboard are oppositely arranged by step 608 so that in cathode pattern be located at object support column on part with Heat-conducting layer contact.
As shown in Figure 1, cover board and backboard can be oppositely arranged after obtaining cover board and backboard, so that cathode pattern The part being located on object support column 022 in 025 is contacted with heat-conducting layer 012, and envelope can also be formed between cover board and backboard Frame glue Y.
When this method is for after being oppositely arranged cover board and backboard, assisting when manufacturing OLED display panel shown in Fig. 3 Support column is also contacted with heat-conducting layer.
Control unit is connect by step 609 with heat-conducting layer.
Control unit, which is used to apply to heat-conducting layer, adjusts voltage, to adjust the voltage on cathode pattern.
Optionally, when control unit can also apply anode voltage to anode block, when applying cathode voltage to cathode pattern, Control unit can also also be connect with anode block and cathode pattern in step 609.
In conclusion being provided with mesh in backboard in OLED display panel manufactured by method provided in an embodiment of the present invention Mark support column, and cathode pattern covers the object support column, and under the supporting role of object support column with it is thermally conductive in cover board Layer contact.Since the heat-conducting effect of heat-conducting layer is preferable, and heat-conducting layer is contacted with cathode pattern, and therefore, light-emitting block generates when shining Heat can be carried out by cathode pattern and heat-conducting layer it is thermally conductive, so as to the feelings for avoiding OLED display panel from occurring overheating Condition.
The embodiment of the invention provides a kind of display device, which may include: Fig. 1 or OLED shown in Fig. 3 Display panel.The display device can be with are as follows: Electronic Paper, mobile phone, tablet computer, television set, display, laptop, number Any products or components having a display function such as photo frame, navigator.
It should be noted that embodiment of the method provided in an embodiment of the present invention can be with corresponding display panel embodiment phase Mutually reference, it is not limited in the embodiment of the present invention.The sequencing energy of embodiment of the method step provided in an embodiment of the present invention Appropriate adjustment is enough carried out, step also according to circumstances can accordingly be increased and decreased, and anyone skilled in the art exists The invention discloses technical scope in, the method that can readily occur in variation should be covered by the protection scope of the present invention, because This is repeated no more.
The foregoing is merely the alternative embodiments of the application, not to limit the application, it is all in spirit herein and Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this application.

Claims (10)

1. a kind of OLED display panel, which is characterized in that the OLED display panel includes: the backboard and cover board being oppositely arranged,
The cover board includes: the first underlay substrate, and is arranged on first underlay substrate towards the backboard side Heat-conducting layer;
The backboard includes: the second underlay substrate, is arranged on second underlay substrate towards the multiple of the cover board side Object support column and multiple anode blocks are arranged in the light-emitting block on the anode block, and are arranged in the multiple object support Cathode pattern on column and the light-emitting block, be located in the cathode pattern part on the object support column with it is described thermally conductive Layer contact.
2. OLED display panel according to claim 1, which is characterized in that the material of the heat-conducting layer is conductive material, The OLED display panel further include: control unit,
Described control unit is connect with the heat-conducting layer, voltage is adjusted for applying to the heat-conducting layer, to adjust the cathode Voltage on pattern.
3. OLED display panel according to claim 1 or 2, which is characterized in that the backboard further include:
Pixel circuit layer on second underlay substrate is set;
Pixel defining layer on the pixel circuit layer and for limiting multiple pixel regions is set;
Wherein, the anode block, the multiple target branch are provided in each pixel region on the pixel circuit layer Dagger is arranged in the pixel defining layer.
4. OLED display panel according to claim 1 or 2, which is characterized in that
The heat-conducting layer is transparent, and the light-emitting block is used to shine to the direction far from second underlay substrate;
Alternatively, the heat-conducting layer is in nontransparent shape, the light-emitting block is used to shine to the direction close to second underlay substrate.
5. OLED display panel according to claim 3, which is characterized in that
The multiple pixel region array is arranged, the multiple object support column array arrangements being arranged in the pixel defining layer, and There are one-row pixels region between adjacent any two rows object support column, exist between adjacent any two column object support column Two column pixel regions.
6. OLED display panel according to claim 1 or 2, which is characterized in that the backboard further include:
At least one Auxiliary support column in the pixel defining layer is set, and the Auxiliary support column connects with the heat-conducting layer Touching.
7. OLED display panel according to claim 6, which is characterized in that
The material of the object support column is identical as the material of the Auxiliary support column.
8. a kind of manufacturing method of OLED display panel, which is characterized in that the OLED display panel is claim 1 to 7 times OLED display panel described in one, which comprises
Heat-conducting layer is formed on the first underlay substrate, to obtain cover board;
Multiple object support columns and multiple anode blocks are formed on the second underlay substrate;
Light-emitting block is formed on the anode block;
Cathode pattern is formed on the multiple object support column and the light-emitting block, to obtain backboard;
The cover board and the backboard are oppositely arranged, so that being located at the portion on the object support column in the cathode pattern Divide and is contacted with the heat-conducting layer.
9. according to the method described in claim 8, it is characterized in that, the material of the heat-conducting layer is conductive material, the method Further include:
Control unit is connect with the heat-conducting layer;
Wherein, described control unit, which is used to apply to the heat-conducting layer, adjusts voltage, to adjust the voltage on the cathode pattern.
10. a kind of display device, which is characterized in that the display device includes: any OLED of claim 1 to 7 aobvious Show panel.
CN201810821373.3A 2018-07-24 2018-07-24 OLED display panel, manufacturing method thereof and display device Active CN108987608B (en)

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CN110176550A (en) * 2019-06-18 2019-08-27 京东方科技集团股份有限公司 Preparation method, encapsulation cover plate, display panel and the display device of encapsulation cover plate
CN110224085A (en) * 2019-07-19 2019-09-10 业成科技(成都)有限公司 The manufacturing method of lateral choke encapsulating structure
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