CN109300969A - A kind of electroluminescence display panel, its production method and display device - Google Patents
A kind of electroluminescence display panel, its production method and display device Download PDFInfo
- Publication number
- CN109300969A CN109300969A CN201811399793.3A CN201811399793A CN109300969A CN 109300969 A CN109300969 A CN 109300969A CN 201811399793 A CN201811399793 A CN 201811399793A CN 109300969 A CN109300969 A CN 109300969A
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- Prior art keywords
- display panel
- photoelectric conversion
- conversion unit
- electroluminescence display
- underlay substrate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention discloses a kind of electroluminescence display panel, its production method and display devices, the electroluminescence display panel includes: underlay substrate, the light emitting structure being arranged in array on underlay substrate, further includes: the photoelectric conversion unit positioned at electroluminescence display panel light-emitting surface side；Orthographic projection of the photoelectric conversion unit on underlay substrate and orthographic projection of the light emitting structure on underlay substrate be not be overlapped；Photoelectric conversion unit is used to the light of extraneous irradiation on a display panel being converted to electric energy as display panel power supply.Photoelectric conversion unit is set by the gap location of light emitting structure each in display panel, the light that the external world is radiated on photoelectric conversion unit is converted into electric energy for display panel power supply, so as to reduce the energy consumption of display panel while reducing display panel reflectivity.
Description
Technical field
The present invention relates to technical field of display panel more particularly to a kind of electroluminescence display panel, its production method and
Display device.
Background technique
Electroluminescent device compared with liquid crystal display, has thin, light, wide viewing angle, master as novel flat-panel monitor
It is dynamic shine, luminescent color is continuously adjustable, at low cost, fast response time, energy consumption is small, driving voltage is low, operating temperature range is wide, gives birth to
Production. art is simple, luminous efficiency is high and can Flexible Displays the advantages that.Electroluminescent device just because of have other displays not
Analogous advantage and fine application prospect have obtained the very big concern of industrial circle and scientific circles.
In electroluminescence display panel, luminescent device includes at least anode layer, luminescent layer and cathode layer, and in organic hair
Film layer structure of the photosphere towards light-emitting surface side be it is transparent, therefore, extraneous light can be radiated at display panel inner metal layer
On cabling, generates reflected light and projected from the light-emitting surface of display panel, influence the display effect of display panel.
Therefore, how to reduce display panel reflectivity improve display panel display quality be those skilled in the art urgently
Technical problem to be solved.
Summary of the invention
The present invention provides a kind of electroluminescence display panel, its production method and display device, to solve the prior art
The high technical problem of reflectivity in middle electroluminescence display panel.
The embodiment of the invention provides a kind of electroluminescence display panels, comprising: underlay substrate is located at the underlay substrate
On the light emitting structure that is arranged in array, the electroluminescence display panel further include: go out light positioned at the electroluminescence display panel
The photoelectric conversion unit of face side；
Orthographic projection of the photoelectric conversion unit on the underlay substrate and the light emitting structure are in the underlay substrate
On orthographic projection be not overlapped；
The photoelectric conversion unit is used to the light of extraneous irradiation on a display panel being converted to electric energy as display panel confession
Electricity.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, institute
Stating electroluminescence display panel is top emission type display panel, the display panel further include: cover the envelope of the light emitting structure
Fill layer；
The photoelectric conversion unit is located at the side that the encapsulated layer deviates from the light emitting structure.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, also
Including the buffer layer between the encapsulated layer and the photoelectric conversion unit.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, institute
Stating electroluminescence display panel is bottom emitting type display panel, and the photoelectric conversion unit is located at the underlay substrate and the hair
Between photo structure；Alternatively,
The photoelectric conversion unit is located at the side that the underlay substrate deviates from the light emitting structure.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, institute
Stating photoelectric conversion unit includes: photoelectric conversion diode；
The photoelectric conversion diode include: metal anode, transparent cathode and be located at the transparent cathode and the gold
Belong to photovoltaic conversion structure between anode；
The metal anode is between the transparent cathode and the light emitting structure.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, institute
It is multiple for stating photoelectric conversion diode；
The first insulating protective layer is provided between the metal anode of the two neighboring photoelectric conversion diode.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, institute
State electroluminescence display panel further include: cover the second insulating protective layer of the photoelectric conversion diode.
In one possible implementation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, institute
Stating photovoltaic conversion structure is p-i-n type photovoltaic conversion structure.
Correspondingly, the embodiment of the invention also provides a kind of production of the electroluminescence display panel in any of the above-described implementation
Method, comprising:
One underlay substrate is provided；
The light emitting structure being arranged in array is formed on the underlay substrate；
Photoelectric conversion unit is formed in light emitting display panel light-emitting surface side, wherein the photoelectric conversion unit exists
Orthographic projection and orthographic projection of the light emitting structure on the underlay substrate on the underlay substrate be not be overlapped.
Correspondingly, the embodiment of the invention also provides a kind of display devices, including above-mentioned provided in an embodiment of the present invention
A kind of electroluminescence display panel.
The present invention has the beneficial effect that:
The embodiment of the invention provides a kind of electroluminescence display panel, its production method and display device, the electroluminescent hairs
Light display panel includes: underlay substrate, the light emitting structure being arranged in array on the underlay substrate, further includes: is located at institute
State the photoelectric conversion unit of electroluminescence display panel light-emitting surface side；The photoelectric conversion unit is on the underlay substrate
Orthographic projection and orthographic projection of the light emitting structure on the underlay substrate be not be overlapped；The photoelectric conversion unit is used for will be extraneous
The light of irradiation on a display panel is converted to electric energy as display panel power supply.Pass through the gap of light emitting structure each in display panel
The light that the external world is radiated on photoelectric conversion unit is converted into electric energy as display panel power supply by place's setting photoelectric conversion unit, thus
The energy consumption of display panel can be reduced while reducing display panel reflectivity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electroluminescence display panel provided in an embodiment of the present invention；
Fig. 2 a- Fig. 2 i is the structural schematic diagram of the manufacturing process of electroluminescence display panel provided in an embodiment of the present invention.
Fig. 3 is the method flow diagram of the production method of electroluminescence display panel provided in an embodiment of the present invention.
Fig. 4 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
For the higher problem of reflectivity of electroluminescence display panel in the prior art, the embodiment of the invention provides
A kind of electroluminescence display panel, its production method and display device.In order to make the object, technical solutions and advantages of the present invention more
Add clear, the present invention will be describe below in further detail with reference to the accompanying drawings, it is clear that described embodiment is only the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
All other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
The shapes and sizes of each component do not react actual proportions in attached drawing, and purpose is schematically illustrate the content of present invention.
Specifically, as shown in Figure 1, the present invention provides a kind of electroluminescence display panel, the electroluminescence display panel packet
It includes: underlay substrate 1, the light emitting structure 3 being arranged in array on underlay substrate 1, further includes: be located at electroluminescence display panel
The photoelectric conversion unit A of light-emitting surface side；
Photoelectric conversion unit A on underlay substrate 1 orthographic projection and orthographic projection of the light emitting structure 3 on underlay substrate 1 not
Overlapping；
Photoelectric conversion unit A is used to the light of extraneous irradiation on a display panel being converted to electric energy as display panel confession
Electricity.
Wherein, the inside of display panel there are metal layer (such as metal cathode layer or metal anode layer) and is located at array
Metal line on substrate, ambient light enter in display panel from light-emitting surface, are radiated at meeting in metal layer or metallic display panel
The ambient light that will inject into display panel is reflected, which equally projects from light-emitting surface, therefore the reflected light can be to normal
The light that light emitting structure generates has an impact, to influence display effect.The embodiment of the present invention is in display panel regarding to the issue above
Photoelectric conversion unit is arranged in light-emitting surface side, and the interstitial site that each light emitting structure is arranged in the photoelectric conversion unit is avoided shadow
The aperture opening ratio of display panel is rung, which can convert electric energy for the light of external world's irradiation, on the one hand shine the external world
The light penetrated is converted, it is possible to reduce ambient light is radiated at the light on display panel metal layer or metal wire, to reduce display surface
The reflectivity of plate；On the other hand the photoelectric conversion unit converts light energy into electric energy, which can be supplied to display panel
It uses, reduces the energy consumption of display panel.
Meanwhile reducing the reflectivity of display panel by the setting of photoelectric conversion unit, without display panel again
Light-emitting surface side setting the structures such as polaroid or color filter film come reduce reflection, the thickness of entire display panel can be made
Reduce, is conducive to the bending performance for increasing display panel.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, which includes:
Underlay substrate, the light emitting structure being arranged in array on underlay substrate, further includes: be located at electroluminescence display panel light-emitting surface
The photoelectric conversion unit of side；Orthographic projection and light emitting structure of the photoelectric conversion unit on underlay substrate on underlay substrate just
Projection is not overlapped；Photoelectric conversion unit is used to the light of extraneous irradiation on a display panel being converted to electric energy as display panel confession
Electricity.Photoelectric conversion unit is set by the gap location of light emitting structure each in display panel, the external world is radiated at photoelectric conversion unit
On light be converted into electric energy for display panel power supply, so as to reduce display panel while reducing display panel reflectivity
Energy consumption.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, as shown in Figure 1, electroluminance display
Panel is top emission type display panel, display panel further include: the encapsulated layer 4 of covering light emitting structure 3；
Photoelectric conversion unit A is located at the side that encapsulated layer 4 deviates from light emitting structure 3.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, which can be with
It for top emission type display panel, i.e., is light-emitting surface away from underlay substrate side, it is therefore desirable to send out photoelectric conversion unit setting
The encapsulated layer of photo structure deviates from the side of underlay substrate, to convert to the light that light-emitting surface is taken in.Wherein the encapsulated layer is set
The water oxygen that setting can be reduced in external environment corrodes light emitting structure, to enhance the service life of light emitting structure.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, as shown in Figure 1, further including being located at envelope
Fill the buffer layer 5 between layer 4 and photoelectric conversion unit A.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, the setting of the buffer layer can be played
The effect of flattening film layer, convenient for the production of photoelectric conversion unit；On the other hand it can avoided by the setting of buffer layer
Injury is generated to light emitting structure during making photoelectric conversion unit.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, electroluminescence display panel is bottom hair
Emitting display panel, photoelectric conversion unit is between underlay substrate and light emitting structure；Alternatively,
Photoelectric conversion unit is located at the side that underlay substrate deviates from light emitting structure.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, which can be with
For the display panel of bottom emitting type, i.e., light is carried out out from underlay substrate side, photoelectric conversion unit needs one positioned at light-emitting surface
Side, specifically, the photoelectric conversion unit need to be arranged between underlay substrate and luminescence unit, to reduce the yin of light emitting structure
The reflection that pole layer or anode layer generate, wherein drive array layer is additionally provided between underlay substrate and light emitting structure to drive
Dynamic light emitting structure carries out luminous, which is provided with metal line, can equally reflect ambient light, in order to reduce
The reflection of this part photoelectric conversion unit can be arranged between drive array layer and underlay substrate, naturally it is also possible to by photoelectricity
The side that underlay substrate deviates from light emitting structure is arranged in converting unit, and the specific location of the photoelectric conversion unit is according to actual use
Situation is selected, and is not specifically limited herein.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, as shown in Figure 1, the photoelectric conversion list
First A includes: photoelectric conversion diode；
Photoelectric conversion diode include: metal anode 6, transparent cathode 9 and be located at transparent cathode 9 and metal anode 6 it
Between photovoltaic conversion structure 8；
Metal anode 6 is between transparent cathode 9 and light emitting structure 3.
It specifically, can by the setting of photodiode in electroluminescence display panel provided in an embodiment of the present invention
It to convert light energy into electric energy, is powered for display panel, to be powered for display panel, to save display panel
Energy consumption.
Wherein, metal anode is arranged between transparent cathode and light emitting structure, i.e., is positioned close to out transparent cathode
The side of smooth surface, this kind, which is provided with, injects photoelectric conversion unit conducive to ambient light to carry out photoelectric conversion, and avoids metal
Anode is positioned close to the side of light-emitting surface, causes photovoltaic conversion structure itself to generate light reflection, increases the reflectivity of display surface
The phenomenon that occur.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, as shown in Figure 1, two pole of photoelectric conversion
Pipe is multiple；
The first insulating protective layer 7 is provided between the metal anode 6 of two neighboring photoelectric conversion diode.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, in order to avoid two neighboring photoelectricity turns
It changes and short circuit occurs between the metal anode in diode, the first insulating protective layer is arranged between two neighboring metal anode can be with
Short circuit is prevented, guarantees that each photoelectric conversion diode works normally.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, as shown in Figure 1, electroluminance display
Panel further include: the second insulating protective layer 10 of covering photoelectric conversion diode.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, pass through setting for the second insulating protective layer
Photoelectric conversion diode can be packaged by setting, and avoided extraneous water oxygen from generating corrosion to photoelectric conversion diode, can be increased
The service life of photoelectric conversion diode.
Optionally, in electroluminescence display panel provided in an embodiment of the present invention, photovoltaic conversion structure is p-i-n type light
Electric transformational structure.
Specifically, in electroluminescence display panel provided in an embodiment of the present invention, p-i-n type photovoltaic conversion structure can be with
For p-i-n photoelectric conversion diode, conventional solar cell is the materials such as silicon metal or CIGS, needs high temperature process, can damage
Organic light emitting display, the p-i-n type amorphous silicon thin-film solar cell that the present invention uses, can be accomplished below at 100 DEG C
Preparation will not generate injury to organic light emitting display.
It should be noted that in electroluminescence display panel provided in an embodiment of the present invention, photovoltaic conversion structure in addition to
It can turn other than p-i-n type photovoltaic conversion structure, to can also be the photoelectricity of other low temperature organic solar battery materials formation
Structure is changed, is not specifically limited herein.
Below to provided in an embodiment of the present invention electroluminescent by taking the manufacturing process of top emission type electroluminescence display panel as an example
The structure of light emitting display panel is illustrated:
As shown in Figure 2 a, drive array layer 2 is formed on underlay substrate 1；
As shown in Figure 2 b, light emitting structure 3 is formed away from the side of underlay substrate in drive array layer 2, and in light emitting structure 3
Encapsulated layer 4 is formed away from the side of underlay substrate 1, light emitting structure 3 is packaged；
As shown in Figure 2 c, buffer layer 5 is formed away from underlay substrate side in encapsulated layer 4；
As shown in Figure 2 d, metal anode layer 6 (Mo, ITO, Ti, Al etc.) is formed on the surface of the buffer layer 5, and etches shape
At figure, the region where light emitting structure is exposed；
As shown in Figure 2 e, the first insulating protective layer 7 is formed on metal anode layer 6, and is patterned, and metal is exposed
Region where anode layer 6；
As shown in figure 2f, photovoltaic conversion structure layer 81 is formed on metal anode layer 6；
As shown in Figure 2 g, transparent cathode 9 is formed on photovoltaic conversion structure layer 81, and the transparent cathode 9 is carried out
Patterning；
As shown in fig. 2h, photovoltaic conversion structure layer 81 is patterned using the transparent cathode 9 as exposure mask, is formed
Photovoltaic conversion structure 8；
As shown in fig. 2i, the second insulating protective layer 10 for covering the photoelectric conversion unit is formed on transparent cathode 9, it is complete
At the encapsulation of photoelectric conversion unit.
Based on the same inventive concept, as shown in figure 3, the embodiment of the invention also provides a kind of electroluminescence display panels
Production method, comprising:
S301, a underlay substrate is provided；
S302, the light emitting structure being arranged in array is formed on underlay substrate；
S303, photoelectric conversion unit is formed in light emitting display panel light-emitting surface side, wherein photoelectric conversion unit is in substrate
Orthographic projection and orthographic projection of the light emitting structure on underlay substrate on substrate be not be overlapped.
Wherein, the specific production method of the electroluminescence display panel is in the embodiment of above-mentioned electroluminescence display panel
It is elaborated, details are not described herein.
Based on the same inventive concept, as shown in figure 4, the embodiment of the invention also provides a kind of display device, including it is above-mentioned
Electroluminescence display panel in embodiment.
Wherein, which, which is suitable for display of organic electroluminescence, inorganic EL display, active matrix, has
The multiple types such as machine light emitting diode indicator (Active Matrix/Organic Light Emitting Diode, AMOLED)
The display of type.The display device can be with are as follows: mobile phone, tablet computer, television set, display, laptop, Digital Frame,
Any products or components having a display function such as navigator, are not limited thereto.
The embodiment of the invention provides a kind of electroluminescence display panel, its production method and display device, the electroluminescent hairs
Light display panel includes: underlay substrate, the light emitting structure being arranged in array on underlay substrate, further includes: is located at electroluminescent hair
The photoelectric conversion unit of light display panel light-emitting surface side；Orthographic projection and light emitting structure of the photoelectric conversion unit on underlay substrate
Orthographic projection on underlay substrate is not overlapped；Photoelectric conversion unit is used to the light of extraneous irradiation on a display panel being converted to electricity
It can be that display panel is powered.Photoelectric conversion unit is arranged by the gap location of light emitting structure each in display panel to irradiate the external world
Light on photoelectric conversion unit is converted into electric energy for display panel power supply, so as to reduce the same of display panel reflectivity
When reduce display panel energy consumption.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of electroluminescence display panel, comprising: underlay substrate, the light-emitting junction being arranged in array on the underlay substrate
Structure, which is characterized in that further include: the photoelectric conversion unit positioned at electroluminescence display panel light-emitting surface side；
The photoelectric conversion unit on the underlay substrate orthographic projection and the light emitting structure on the underlay substrate
Orthographic projection is not overlapped；
The photoelectric conversion unit is used to the light of extraneous irradiation on a display panel being converted to electric energy as display panel power supply.
2. electroluminescence display panel as described in claim 1, which is characterized in that the electroluminescence display panel is top hair
Emitting display panel, the display panel further include: cover the encapsulated layer of the light emitting structure；
The photoelectric conversion unit is located at the side that the encapsulated layer deviates from the light emitting structure.
3. electroluminescence display panel as claimed in claim 2, which is characterized in that further include be located at the encapsulated layer with it is described
Buffer layer between photoelectric conversion unit.
4. electroluminescence display panel as described in claim 1, which is characterized in that the electroluminescence display panel is bottom hair
Emitting display panel, the photoelectric conversion unit is between the underlay substrate and the light emitting structure；Alternatively,
The photoelectric conversion unit is located at the side that the underlay substrate deviates from the light emitting structure.
5. electroluminescence display panel according to any one of claims 1-4, which is characterized in that the photoelectric conversion unit packet
It includes: photoelectric conversion diode；
The photoelectric conversion diode include: metal anode, transparent cathode and be located at the transparent cathode and the metal sun
Photovoltaic conversion structure between pole；
The metal anode is between the transparent cathode and the light emitting structure.
6. electroluminescence display panel as claimed in claim 5, which is characterized in that the photoelectric conversion diode is multiple；
The first insulating protective layer is provided between the metal anode of the two neighboring photoelectric conversion diode.
7. electroluminescence display panel as claimed in claim 5, which is characterized in that the electroluminescence display panel also wraps
It includes: covering the second insulating protective layer of the photoelectric conversion diode.
8. electroluminescence display panel as claimed in claim 5, which is characterized in that the photovoltaic conversion structure is p-i-n type
Photovoltaic conversion structure.
9. a kind of production method of such as described in any item electroluminescence display panels of claim 1-8, which is characterized in that packet
It includes:
One underlay substrate is provided；
The light emitting structure being arranged in array is formed on the underlay substrate；
Photoelectric conversion unit is formed in light emitting display panel light-emitting surface side, wherein the photoelectric conversion unit is described
Orthographic projection and orthographic projection of the light emitting structure on the underlay substrate on underlay substrate be not be overlapped.
10. a kind of display device, which is characterized in that including such as described in any item electroluminescence display panels of claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811399793.3A CN109300969A (en) | 2018-11-22 | 2018-11-22 | A kind of electroluminescence display panel, its production method and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811399793.3A CN109300969A (en) | 2018-11-22 | 2018-11-22 | A kind of electroluminescence display panel, its production method and display device |
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| CN109841662A (en) * | 2019-02-21 | 2019-06-04 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
| CN110112140A (en) * | 2019-04-22 | 2019-08-09 | 深圳市华星光电半导体显示技术有限公司 | A kind of display panel and preparation method thereof |
| CN110718581A (en) * | 2019-11-20 | 2020-01-21 | 西华大学 | OLED display module and preparation method thereof |
| CN110752224A (en) * | 2019-10-31 | 2020-02-04 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN111384140A (en) * | 2020-03-24 | 2020-07-07 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN113053972A (en) * | 2021-03-11 | 2021-06-29 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN109841662A (en) * | 2019-02-21 | 2019-06-04 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
| CN110112140A (en) * | 2019-04-22 | 2019-08-09 | 深圳市华星光电半导体显示技术有限公司 | A kind of display panel and preparation method thereof |
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| CN113053972A (en) * | 2021-03-11 | 2021-06-29 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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