CN207303144U - A kind of WOLED devices and display device - Google Patents
A kind of WOLED devices and display device Download PDFInfo
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- CN207303144U CN207303144U CN201721177261.6U CN201721177261U CN207303144U CN 207303144 U CN207303144 U CN 207303144U CN 201721177261 U CN201721177261 U CN 201721177261U CN 207303144 U CN207303144 U CN 207303144U
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Abstract
The utility model discloses a kind of WOLED devices and display device, it is related to display technology field, solves the problems, such as that colour mixture easily occur in existing WOLED devices.The WOLED devices include：Substrate and the luminescence unit being disposed on the substrate, luminescence unit includes anode, the first luminescent layer being arranged on above anode and the charge generating layers being arranged on above the first luminescent layer, the anode of two neighboring luminescence unit is separated by pixel defining layer, and the first luminescent layer and charge generating layers of two neighboring luminescence unit are disconnected by the insulating part being arranged in pixel defining layer.WOLED devices in the utility model are applied to WOLED display devices.
Description
Technical field
It the utility model is related to display technology field, more particularly to a kind of WOLED devices and display device.
Background technology
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) device, since it has response
The advantages that speed is fast, colour gamut is wide, has been increasingly becoming the mainstream applications of display field, wherein, WOLED (White Organic
Light-Emitting Diode, white organic LED) device is compared with Conventional OLED devices, due to its service life
Longer, luminous efficiency higher, therefore, has obtained more being widely applied.
In a kind of existing WOLED devices, the luminescence unit of white organic LED is sent out by the son of different colours
Light unit composition, specifically, the sub- luminescence unit of different colours is stacked by charge generating layers to be together in series.Existing electric charge
The material of generation layer is mostly using the organic material doped with lithium simple substance.Orientation as shown in Figure 1, using doped with lithium simple substance
Organic material as charge generating layers 1 when, when WOLED devices for a long time light cause WOLED device heatings when, electric charge generation
Aging will occur for the binding ability between organic molecule and lithium simple substance in layer 1 so that charge generating layers 1 shine to one
Luminescent layer 2 in two sub- luminescence units up and down in unit transmits electric charge at the same time, also can be to the hair in adjacent luminescence unit
2 lateral charge transmission of photosphere, so that the luminescence unit on the luminescence unit both sides for causing to be lit can also be lit luminous, and then goes out
The phenomenon of existing colour mixture, influences the display effect of WOLED devices.
Utility model content
The purpose of this utility model is to provide a kind of WOLED devices and display device, for preventing WOLED devices from occurring
The phenomenon of colour mixture, improves the display effect of WOLED devices.
To reach above-mentioned purpose, WOLED devices provided by the utility model adopt the following technical scheme that：
The WOLED devices include：The luminescence unit of substrate and setting on the substrate, the luminescence unit include sun
Pole, the first luminescent layer being arranged on above the model machine and the charge generating layers being arranged on above first luminescent layer, phase
The anode of adjacent two luminescence units is separated by pixel defining layer, the first luminescent layer of the two neighboring luminescence unit and
Charge generating layers are disconnected by the insulating part being arranged in the pixel defining layer.
Compared with prior art, WOLED devices provided by the utility model have the advantages that：
In WOLED devices provided by the utility model, the first luminescent layer and the electric charge generation of two neighboring luminescence unit
Layer is disconnected by the insulating part being arranged in pixel defining layer, this, which allows for lighting for a long time when WOLED devices, causes
During WOLED device heatings, in the luminescence unit that one is lighted, even if organic point in charge generating layers in the luminescence unit
Aging occurs for the binding ability between son and lithium simple substance so that charge generating layers are passed in the first luminescent layer into the luminescence unit
While passing electric charge, also can lateral transport electric charge, but charge generating layers and the electricity of adjacent light-emitting units due to the luminescence unit
Lotus generation layer is disconnected by insulating part, and therefore, the charge generating layers of the luminescence unit would not be by electric charge lateral transport to adjacent
Charge generating layers in luminescence unit, be lit so as to avoid the luminescence unit adjacent with the luminescence unit that this is lighted it is luminous,
And then the phenomenon of colour mixture is avoided the occurrence of, improve the display effect of WOLED devices.
In addition, the utility model also provides a kind of display device, the display device includes what above-mentioned technical proposal provided
WOLED devices.
Compared with prior art, the attainable beneficial effect of display device institute provided by the utility model and above-mentioned WOLED
The beneficial effect of device is identical, therefore is no longer repeated herein.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Attached drawing is briefly described needed in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of WOLED devices in the prior art；
Fig. 2 is the structure diagram for the first WOLED device that the utility model embodiment provides；
Fig. 3 is the structure diagram for second of WOLED device that the utility model embodiment provides；
Fig. 4 is the flow chart of the production method for the WOLED devices that the utility model embodiment provides；
Fig. 5 is the schematic diagram of the structure formed in Fig. 4 after step S2；
Fig. 6 is the schematic diagram of the structure formed in Fig. 4 after step S3；
Fig. 7 is the schematic diagram of the structure formed in Fig. 4 after step S4；
Fig. 8 is the schematic diagram of the structure formed in Fig. 4 after step S5；
Fig. 9 is the schematic diagram of the structure formed in Fig. 4 after step S6；
Figure 10 is the schematic diagram of the first structure formed in Fig. 4 after step S7；
Figure 11 is the schematic diagram of second of the structure formed in Fig. 4 after step S7；
Figure 12 is the schematic diagram of the first structure formed in Fig. 4 after step S8；
Figure 13 is the schematic diagram of second of the structure formed in Fig. 4 after step S8.
Description of reference numerals：
1-charge generating layers, 2-luminescent layer, 3-substrate,
4-luminescence unit, 5-anode, the 6-the first luminescent layer,
7-pixel defining layer, 8-insulating part, the 9-the second luminescent layer,
10-the three luminescent layer, 11-cathode.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is the utility model part of the embodiment, rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As indicated with 2, the WOLED devices that the utility model embodiment provides include：The hair of substrate 3 and setting on the substrate 3
Light unit 4, luminescence unit 4 include anode 5, the first luminescent layer 6 being arranged on anode 5 and are arranged on the first luminescent layer 6
Charge generating layers 1, the anode 5 of two neighboring luminescence unit 4 separated by pixel defining layer 7, i.e., the sun in each luminescence unit 4
Pole 5 is mutually insulated, and the first luminescent layer 6 and charge generating layers 1 of two neighboring luminescence unit 4 are defined by being arranged on pixel
Insulating part 8 on layer 7 disconnects, i.e., the first luminescent layer 6 and charge generating layers 1 in each luminescence unit 4 are also all mutually insulateds.
Exemplarily, as shown in Fig. 2, above-mentioned luminescence unit 4 further includes and is arranged on the second of the top of charge generating layers 1 and shines
Layer 9, the 3rd luminescent layer 10 for being arranged on the top of the second luminescent layer 9, the cathode 11 for being arranged on the top of the 3rd luminescent layer 10, each cathode
11 are connected.
Exemplarily, above-mentioned anode 5 can be selected metal, ITO (Indium Tin Oxides, tin indium oxide) or by metal
With the mixture of ITO compositions；Organic material or inorganic material containing lithium simple substance etc. can be selected in charge generating layers 1, and cathode 11 is optional
With metal materials such as aluminium.In above-mentioned WOLED devices, any luminescence unit 4, which can be considered, includes three sub- luminescence units, wherein
First sub- luminescence unit includes anode 5, the first luminescent layer 6 and charge generating layers 1, when luminescence unit 4 is lit, electric charge generation
The one side of layer 1 towards the first luminescent layer 6 is equivalent to the cathode of the sub- luminescence unit, and electronics, anode are transmitted to the first luminescent layer 6
5 combine to 6 transporting holes of the first luminescent layer, hole and electronics in the first luminescent layer 6 so that the first luminescent layer 6 shines；Second
A sub- luminescence unit includes charge generating layers 1, the second luminescent layer 9 and the 3rd luminescent layer 10, when which is lit, electricity
Lotus generation layer 1 towards the second luminescent layer 9 one side equivalent to the sub- luminescence unit anode, to 9 transporting holes of the second luminescent layer,
3rd luminescent layer 10 towards the second luminescent layer 9 one side equivalent to the cathode of the sub- luminescence unit, transmit electricity to the second luminescent layer 9
Son, hole and electronics combine in the second luminescent layer 9 so that the second luminescent layer 9 shines；3rd sub- luminescence unit includes second
Luminescent layer 9, the 3rd luminescent layer 10 and cathode 11, when which is lit, the second luminescent layer 9 is towards the 3rd luminescent layer 10
One side equivalent to the anode of the sub- luminescence unit, to 10 transporting holes of the 3rd luminescent layer, cathode 11 is passed to the 3rd luminescent layer 10
Transmission of electricity, hole and electronics combine in the 3rd luminescent layer 10 so that the 3rd luminescent layer 10 shines, what the first luminescent layer 6 was sent
The light colour mixture that light, the second luminescent layer 9 and the 3rd luminescent layer 10 are sent, you can make the luminescence unit 4 send the light of white.It is exemplary
Ground, the first luminescent layer 6 can send blue light, and the second luminescent layer 9 sends red light, and the 3rd luminescent layer 10 sends green light, and second
Luminescent layer 9 sends red light and the 3rd luminescent layer 10 sends green light colour mixture, forms sodium yellow, the indigo plant that the first luminescent layer 6 is sent
Coloured light and the sodium yellow colour mixture, you can the luminescence unit 4 is sent white light.
In WOLED devices provided in this embodiment, the first luminescent layer 6 and the electric charge generation of two neighboring luminescence unit 4
Layer 1 is disconnected by the insulating part 8 being arranged in pixel defining layer 7, this, which allows for lighting for a long time when WOLED devices, causes
During WOLED device heatings, in a luminescence unit lighted 4, even if having in charge generating layers 1 in the luminescence unit 4
Aging occurs for the binding ability between machine molecule and lithium simple substance so that charge generating layers 1 are in the first hair into the luminescence unit 4
Photosphere 6 transmit electric charge while, also can lateral transport electric charge, but the charge generating layers 1 due to the luminescence unit 4 with it is adjacent shine
The charge generating layers 1 of unit 4 are disconnected by insulating part 8, and therefore, the charge generating layers 1 of the luminescence unit 4 would not be horizontal by electric charge
The charge generating layers 1 in adjacent luminescence unit 4 are passed to, are shone so as to avoid the luminescence unit 4 lighted with this is adjacent
Unit 4 is lit phenomenon that is luminous, and then avoiding the occurrence of colour mixture, improves the display effect of WOLED devices.
Exemplarily, orientation as shown in Figure 2, insulating part 8 can be inverted trapezoidal insulating part.Since insulating part 8 is inverted trapezoidal
Insulating part, the area of the upper surface of insulating part 8 are more than the area of the lower face contacted with pixel defining layer 7, inverted trapezoidal insulating part 8
The angle of upper surface of side and pixel defining layer 7 be acute angle, therefore, in above-mentioned WOLED device process is made, deposition the
When one luminescent layer 6 and charge generating layers 1, the first luminescent layer 6 and charge generating layers 1 of deposition would not be along inverted trapezoidal insulating parts
8 side climbing, so as to be disconnected with the first luminescent layer 6 and charge generating layers 1 of 8 upper surface of insulating part deposition, and then realizes
The first luminescent layer 6 and charge generating layers 1 of two neighboring luminescence unit 4 disconnect.
Further, as shown in Fig. 2, the first luminescent layer 6, charge generating layers 1, the second luminescent layer 9,10 and of the 3rd luminescent layer
The sum of thickness of cathode 11 is more than the thickness of insulating part 8, and the sum of thickness of the first luminescent layer 6 and charge generating layers 1 is less than absolutely
The thickness of edge part 8.Due to the thickness of the first luminescent layer 6, charge generating layers 1, the second luminescent layer 9, the 3rd luminescent layer 10 and cathode 11
The sum of degree is more than the thickness of insulating part 8, and the first luminescent layer 6, charge generating layers 1, the second luminescent layer 9,10 and of the 3rd luminescent layer
Cathode 11 is cascading, and cathode 11 is located at the superiors, and therefore, orientation as shown in Figure 2, is making above-mentioned WOLED devices
During part, when depositing cathode 11, the cathode 11 of deposition can be along stacking gradually the first of the upper surface for being formed in insulating part 8
The side climbing of luminescent layer 6, charge generating layers 1, the second luminescent layer 9, the 3rd luminescent layer 10, will not be because of the presence of insulating part 8
And disconnect, so as to pass through primary depositing technique, it becomes possible to a flood cathode 11 of the upper surface of covering insulating part 8 is formed, and then
Realize the normal luminous of WOLED devices；In addition, the sum of thickness of the first luminescent layer 6 and charge generating layers 1 is less than insulating part 8
During thickness, it may further ensure that during the first luminescent layer 6 and charge generating layers 1 are deposited, insulating part 8 can play partition
Effect, the first luminescent layer 6 and charge generating layers 1 of two neighboring luminescence unit 4 are disconnected.
Exemplarily, as shown in Figures 2 and 3, the second luminescent layer 9 of two neighboring luminescence unit 4 is by being arranged on pixel
The insulating part 8 defined on layer 7 disconnects；Or, the second luminescent layer 9 of each luminescence unit 4 is integrally formed.Specifically, as shown in Fig. 2,
If the sum of thickness of the first luminescent layer 6, charge generating layers 1, the second luminescent layer 9 is less than the thickness of insulating part 8, in deposition second
During luminescent layer 9, insulating part 8 can also play the role of partition, and the second luminescent layer 9 of two neighboring luminescence unit 4 is disconnected.If
First luminescent layer 6, charge generating layers 1, the sum of the thickness of the second luminescent layer 9 are more than the thickness of insulating part 8, orientation as shown in Figure 3,
Since the first luminescent layer 6, charge generating layers 1, the second luminescent layer 9 are cascading, and the second luminescent layer of cathode 9 is located at
The superiors, therefore, when depositing the second luminescent layer 9, the second luminescent layer 9 of deposition can be formed in insulation along stacking gradually
The side climbing of the first luminescent layer 6, charge generating layers 1 of the upper surface of part 8, will not disconnect because of the presence of insulating part 8, from
And pass through primary depositing technique, it becomes possible to form second luminescent layer of flood 9 of the upper surface of covering insulating part 8.Require supplementation with
Even if the second luminescent layer 9 in two neighboring luminescence unit 4 is integrally formed, the second hair in two neighboring luminescence unit 4
Electric charge will not be mutually transmitted between photosphere 9, therefore, for whether connecting between the second luminescent layer 9 of two neighboring luminescence unit 4
Connect, the display effect of the WOLED devices in the utility model embodiment will not be impacted, therefore, the utility model is implemented
In example, the second luminescent layer 9 of two neighboring luminescence unit 4 can be disconnected by the insulating part 8 being arranged in pixel defining layer 7,
It can also be integrally formed.
Similar with the second luminescent layer 9, the 3rd luminescent layer 10 can also be by the insulating part 8 that is arranged in pixel defining layer 7
Disconnect, or be integrally formed, the utility model embodiment is to this without repeating.
In addition, each luminescence unit 4 may also include the first hole injection being arranged between 5 and first luminescent layer 6 of anode
Layer, be arranged between the first hole injection layer and the first luminescent layer 6 the first hole transmission layer, be arranged on charge generating layers 1 with
The second hole injection layer between second luminescent layer 9, and be arranged between the second hole injection layer and the second luminescent layer 9
Two hole transmission layers.
Wherein, the first hole injection layer of two neighboring luminescence unit 4 and the first hole transmission layer are by being arranged on pixel
The insulating part 8 defined on layer 7 disconnects, correspondingly, it is preferred that the first luminescent layer 6, the first hole injection layer, the first hole transmission layer and
It is less than the thickness of insulating part 8 after the thickness of charge generating layers 1, so that in above-mentioned WOLED device process is made, deposition the
When one luminescent layer 6, the first hole injection layer, the first hole transmission layer and charge generating layers 1, the first luminescent layer 6, first of deposition
Hole injection layer, the first hole transmission layer and charge generating layers 1 would not be climbed along the side of inverted trapezoidal insulating part 8, so that
It is disconnected with the first luminescent layer 6, the first hole injection layer, the first hole transmission layer and the charge generating layers 1 of 8 upper surface of insulating part deposition
Split, realize the first luminescent layer 6, the first hole injection layer, the first hole transmission layer and the electric charge generation of two neighboring luminescence unit 4
Layer 1 disconnects.
The second hole injection layer and the second hole transmission layer of two neighboring luminescence unit 4 are defined by being arranged on pixel
Insulating part 8 on layer 7 disconnects, or, the second hole injection layer of each luminescence unit 4 is integrally formed, and the second of each luminescence unit 4 is empty
Cave transport layer is integrally formed.It is similar with the second luminescent layer 9, even if the second hole injection layer one in two neighboring luminescence unit 4
It is body formed, electric charge will not be mutually transmitted between the second hole injection layer in two neighboring luminescence unit 4, even if two neighboring
The second hole transmission layer in luminescence unit 4 is integrally formed, between the second hole transmission layer in two neighboring luminescence unit 4
Electric charge will not be mutually transmitted, therefore, for whether being connected between the second hole injection layer of two neighboring luminescence unit 4, adjacent
Whether connected between second hole transmission layer of two luminescence units 4, to the WOLED devices in the utility model embodiment
Display effect will not impact, therefore, in the utility model embodiment, the second hole injection of two neighboring luminescence unit 4
Layer can be disconnected by the insulating part 8 being arranged in pixel defining layer 7, can also be integrally formed；Two neighboring luminescence unit 4
Second hole transmission layer can be disconnected by the insulating part 8 being arranged in pixel defining layer 7, can also be integrally formed.
Alternatively, the material of above-mentioned insulating part and pixel defining layer can be photo-polymerization type photosensitive resin or recovery mould assembly sense
Photopolymer resin, can also be the composite material of other insulating properties certainly, the utility model embodiment is without limiting.
The utility model embodiment also provides a kind of production method of WOLED devices, for making above-mentioned WOLED devices,
As shown in figure 4, the production method of the WOLED devices includes：
Step S1, one substrate is provided.It should be noted that the substrate provided in the utility model embodiment is existing skill
In art, the underlay substrate of the TFT of array arrangement is formd on glass substrate or other transparent substrates, on underlay substrate
The specific method of the TFT of array arrangement is formed, the method that can refer to existing making tft array, the utility model embodiment pair
This is without limiting.
Step S2, multiple anodes of array arrangement are formed on substrate.Exemplarily, can on substrate deposited metal it is thin
Film, ito thin film or the film by metal and the ITO mixture being mixed to form, by patterning processes, form the more of array arrangement
A anode.It should be noted that unless otherwise instructed, " patterning processes " in the utility model embodiment refer to：Coating
Photoresist, exposure, development, etching and stripping photoresist and etc..After step S2, structure as shown in Figure 5 is formed, its
In, multiple anodes 5 of array arrangement are formd on the substrate 3.
Step S3, pixel defining layer is formed, pixel defining layer separates adjacent anode 5.Exemplarily, can be in such as Fig. 5
On the basis of shown structure, spin coating photo-polymerization type photosensitive resin or recovery mould assembly photosensitive resin, by patterning processes, form picture
Element defines layer, and pixel defining layer separates two adjacent anodes 5.After step S3, structure as shown in Figure 6 is formed, its
In, pixel defining layer 7 is each formed between two neighboring anode 5, the shape of pixel defining layer 7 can be ladder as shown in Figure 6
Shape.
Step S4, in pixel defining layer 7 insulating part is formed away from the one side of substrate 3.Exemplarily, can be as shown in Figure 6
On the basis of structure, deviate from the one side of substrate 3 in pixel defining layer 7, spin coating photo-polymerization type photosensitive resin or recovery mould assembly are photosensitive
Resin, by patterning processes, forms insulating part.After step S4, structure as shown in Figure 7 is formed, wherein, two neighboring sun
Pixel between pole 5 defines 9 in the one side of substrate 3, is each formed with an insulating part 8, and alternatively, the insulating part 8 is
Trapezoidal insulating part.
Step S5, the first luminescent layer is deposited on multiple anodes 5, corresponding first luminescent layer of any anode 5, with the anode
5 adjacent corresponding first luminescent layers of anode 5 are disconnected by insulating part 8.Exemplarily, on the basis of structure as shown in Figure 7
On, Open Mask can be used, the first luminescent layer is deposited on multiple anodes 5.After step S5, knot as shown in Figure 8 is formed
Structure, wherein, corresponding first luminescent layer 6 of any anode 5, corresponding first luminescent layer 6 of the anode 5 adjacent with the anode 5 passes through
Insulating part 8 disconnects.
Step S6, the deposited charge generation layer on the first luminescent layer 6, any 5 corresponding charge generating layers of anode, with the sun
The adjacent 5 corresponding charge generating layers of anode in pole 5 are disconnected by insulating part 8.Similarly, on the basis of structure as shown in Figure 8
On, using Open Mask, the deposited charge generation layer on the first luminescent layer 6, specifically, the materials of the charge generating layers can be with
For the organic material containing lithium simple substance or inorganic material etc..After step S6, structure as shown in Figure 9 is formed, wherein, it is any
The corresponding charge generating layers 1 of anode 5, the corresponding charge generating layers 1 of the anode 5 adjacent with the anode 5 are disconnected by insulating part 8.
The beneficial effect of the production method of above-mentioned WOLED devices is identical with the beneficial effect of above-mentioned WOLED devices, therefore herein
No longer repeated.
Exemplarily, as shown in figure 4, on the first luminescent layer 6 after deposited charge generation layer 1, above-mentioned WOLED devices
Production method may also include：
Step S7, the second luminescent layer is deposited on charge generating layers 1.Similarly, on the basis of structure as shown in Figure 9
On, using Open Mask, the second luminescent layer is deposited on charge generating layers 1.After step S7, such as Figure 10 or Figure 11 is formed
Shown structure.As shown in Figure 10, corresponding second luminescent layer 9 of any anode 5, the anode 5 adjacent with the anode 5 corresponding
Two luminescent layers 9 are disconnected by insulating part 8.Or, as shown in figure 11, corresponding second luminescent layer 9 of each anode 5 is integrally formed.
Step S8, the 3rd luminescent layer is deposited on the second luminescent layer.Similarly, the structure as shown in Figure 10 or Figure 11
On the basis of, using Open Mask, the 3rd luminescent layer is deposited on the second luminescent layer 9.After step S8, formed such as Figure 12 or
Structure shown in 13, wherein, corresponding 3rd luminescent layer 10 of each anode 5 is integrally formed.You need to add is that except Figure 12 and Figure 13
Outside shown structure, when corresponding second luminescent layer 9 of any anode 5, the anode 5 corresponding second adjacent with the anode 5 shines
Layer 9 is by insulating part 8 when being disconnected, corresponding 3rd luminescent layer 10 of any anode 5, the anode 5 adjacent with the anode 5 corresponding the
Three luminescent layers 10 can also be disconnected by insulating part 8.
Step S9, cathode is deposited on the 3rd luminescent layer, the corresponding cathode of each anode is connected.Similarly, in such as Figure 12
Or on the basis of the structure shown in Figure 13, using Open Mask, cathode is deposited on the 3rd luminescent layer 10, specifically, can be
The metal layer such as deposition of aluminum on three luminescent layers 10, forms cathode.After step S9, WOLED devices as shown in Figure 2 or Figure 3 are formed
Part, wherein, the corresponding cathode 11 of each anode 5 is connected, that is, the cathode 11 for depositing formation is a flood, anode 5, the first luminescent layer
6th, charge generating layers 1, the second luminescent layer 9, the 3rd luminescent layer 10 and cathode 11 form luminescence unit 4.
Exemplarily, in above-mentioned the first luminescent layer of deposition 6, charge generating layers 1, the second luminescent layer 9,10 and of the 3rd luminescent layer
During cathode 11, the first luminescent layer 6, charge generating layers 1, the second luminescent layer 9, the 3rd luminescent layer 10 and the cathode of formation are deposited
The sum of 11 thickness is more than the thickness of the insulating part 8 formed, and the sum of thickness of the first luminescent layer 6 and charge generating layers 1 is less than
The thickness of insulating part 8.
Exemplarily, in above-mentioned steps S3, pixel defining layer is formed, pixel defining layer separates two adjacent anodes
Step may include：
Spin coating photo-polymerization type photosensitive resin or recovery mould assembly photosensitive resin, pass through composition work on the substrate formed with anode
Skill, forms pixel defining layer, and pixel defining layer separates two adjacent anodes.
Similarly, in above-mentioned steps S4, include the step of pixel defining layer forms insulating part away from the one side of substrate：
In pixel defining layer away from the one side spin coating photo-polymerization type photosensitive resin of substrate or recovery mould assembly photosensitive resin, pass through
Patterning processes, form insulating part.
In addition, be provided with the first hole injection layer between 5 and first luminescent layer 6 of anode, the first hole injection layer and the
When being provided with the first hole transmission layer between one luminescent layer 6, after above-mentioned steps S4, before step S5, above-mentioned WOLED devices
Production method may also include：
The first hole injection layer and the first hole transmission layer, any anode corresponding first are sequentially depositing on multiple anodes
Hole injection layer, corresponding first hole injection layer of the anode adjacent with the anode is disconnected by insulating part, and any anode pair
The first hole transmission layer answered, corresponding first hole transmission layer of the anode adjacent with the anode are disconnected by insulating part.
Further, when being provided with the second hole injection layer, the second hole between 1 and second luminescent layer 9 of charge generating layers
It is above-mentioned before step S7 after step S6 when being provided with the second hole transmission layer between implanted layer and the second luminescent layer 9
The production method of WOLED devices may also include：
The second hole injection layer and the second hole transmission layer are sequentially depositing on charge generating layers.
Corresponding second hole injection layer of any anode, corresponding second hole injection layer of the anode adjacent with the anode lead to
Insulating part disconnection is crossed, or, corresponding second hole injection layer of each anode is integrally formed；
Corresponding second hole transmission layer of any anode, corresponding second hole transmission layer of the anode adjacent with the anode lead to
Insulating part disconnection is crossed, or, corresponding second hole transmission layer of each anode is integrally formed.
In addition, the utility model embodiment also protects a kind of display device, the display device includes above-described embodiment institute
The WOLED devices of offer.Beneficial effect achieved by WOLED devices and above-mentioned WOLED devices in the display device
Beneficial effect is identical, therefore is no longer repeated herein.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (8)
- A kind of 1. WOLED devices, it is characterised in that including：The luminescence unit of substrate and setting on the substrate, it is described to shine Unit includes anode, the first luminescent layer being arranged above the anode and the electric charge being arranged above first luminescent layer Generation layer, the anode of the two neighboring luminescence unit are separated by pixel defining layer, and the of the two neighboring luminescence unit One luminescent layer and charge generating layers are disconnected by the insulating part being arranged in the pixel defining layer.
- 2. WOLED devices according to claim 1, it is characterised in that the insulating part is inverted trapezoidal insulating part.
- 3. WOLED devices according to claim 2, it is characterised in that the luminescence unit, which further includes, is arranged on the electricity The second luminescent layer above lotus generation layer, the 3rd luminescent layer being arranged on above second luminescent layer, be arranged on the described 3rd Cathode above luminescent layer, each cathode are connected.
- 4. WOLED devices according to claim 3, it is characterised in that first luminescent layer, the charge generating layers, The sum of thickness of second luminescent layer, the 3rd luminescent layer and the cathode is more than the thickness of the insulating part, and described The sum of thickness of first luminescent layer and the charge generating layers is less than the thickness of the insulating part.
- 5. WOLED devices according to claim 3, it is characterised in that the second of the two neighboring luminescence unit shines Layer is disconnected by the insulating part being arranged in the pixel defining layer；Or, each luminescence unit the second luminescent layer one into Type.
- 6. WOLED devices according to claim 3, it is characterised in that each luminescence unit, which further includes, is arranged on institute State the first hole injection layer between anode and first luminescent layer, be arranged on first hole injection layer and described first The first hole transmission layer between luminescent layer, the second hole being arranged between the charge generating layers and second luminescent layer Implanted layer, and the second hole transmission layer being arranged between second hole injection layer and second luminescent layer；Wherein, the first hole injection layer of the two neighboring luminescence unit and the first hole transmission layer are described by being arranged on Insulating part in pixel defining layer disconnects；The second hole injection layer and the second hole transmission layer of the two neighboring luminescence unit are by being arranged on the pixel The insulating part defined on layer disconnects, or, the second hole injection layer of each luminescence unit is integrally formed, each luminescence unit The second hole transmission layer be integrally formed.
- 7. WOLED devices according to claim 1, it is characterised in that the insulating part and the material of the pixel defining layer Matter is photo-polymerization type photosensitive resin or recovery mould assembly photosensitive resin.
- 8. a kind of display device, it is characterised in that including any WOLED devices of claim 1-7.
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| CN (1) | CN207303144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107425131A (en) * | 2017-09-13 | 2017-12-01 | 京东方科技集团股份有限公司 | A kind of WOLED devices and preparation method thereof |
| CN110931532A (en) * | 2019-11-29 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit, manufacturing method and display device |
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2017
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107425131A (en) * | 2017-09-13 | 2017-12-01 | 京东方科技集团股份有限公司 | A kind of WOLED devices and preparation method thereof |
| WO2019052467A1 (en) * | 2017-09-13 | 2019-03-21 | Boe Technology Group Co., Ltd. | Organic light-emitting diode component and manufacturing method thereof |
| CN107425131B (en) * | 2017-09-13 | 2024-04-26 | 京东方科技集团股份有限公司 | WOLED device and manufacturing method thereof |
| CN110931532A (en) * | 2019-11-29 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit, manufacturing method and display device |
| CN110931532B (en) * | 2019-11-29 | 2022-03-08 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit, manufacturing method and display device |
| US11362156B2 (en) | 2019-11-29 | 2022-06-14 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Pixel unit, manufacturing method, and display device for providing two driving voltages |
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