CN210443584U - Display panel, display screen and display terminal - Google Patents
Display panel, display screen and display terminal Download PDFInfo
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- CN210443584U CN210443584U CN201921176476.5U CN201921176476U CN210443584U CN 210443584 U CN210443584 U CN 210443584U CN 201921176476 U CN201921176476 U CN 201921176476U CN 210443584 U CN210443584 U CN 210443584U
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Abstract
The utility model discloses a display panel, display screen and display terminal, this display panel includes: the OLED device comprises a first cover plate, an OLED device and a second cover plate which are sequentially stacked, wherein the first cover plate is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the first cover plate are provided with anti-reflection layers; the second cover plate is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the second cover plate are both provided with antireflection layers. Through implementing the utility model discloses, first surface and the second surface at one of them apron set up anti-reflection coating, can be so that the light that OLED sent because interference effect is whole through anti-reflection coating in anti-reflection coating, have increased the light output volume of OLED device, are favorable to reducing light loss, set up anti-reflection coating at the first surface and the second surface of another apron simultaneously, can make whole display panel demonstrate the effect of transparent screen, and the setting of two-layer anti-reflection coating can improve display panel's transparency.
Description
Technical Field
The utility model relates to a show technical field, concretely relates to display panel, display screen and display terminal.
Background
With the continuous development of display technology, transparent screens gradually enter the consumer market, and compared with traditional displays, the transparent screens can bring unprecedented visual feelings to users. The transparent screen has the characteristics of screen and transparency, so that the transparent screen can be applied to many occasions, namely the transparent screen can be used as a screen and can replace transparent plate glass.
At present, transparent screens are mainly used for exhibition displays and product displays, for example, using transparent screens instead of shop window glass. The transparent screen has a wide application field in the future, for example, the transparent screen can be used for replacing window glass in the aspect of buildings, and the transparent screen can be used as a glass door of electric appliances such as refrigerators and microwave ovens in electric products. The transparent screen enables the audience to see the screen image and see the objects behind the screen through the screen, thereby enhancing the efficiency of information transmission and increasing much interest.
The transmittance of the display panel of the existing transparent screen is low, so that the display brightness of the display panel is improved to a limited extent, and the user experience is poor.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a display panel, display screen and display terminal to it is not high to solve display panel's transmittance among the prior art, leads to display panel's the comparatively limited technical problem of display brightness promotion.
The embodiment of the utility model provides a technical scheme as follows:
the embodiment of the utility model provides a first aspect provides a display panel, and this display panel includes: the OLED display panel comprises a first cover plate, an OLED device and a second cover plate which are sequentially stacked, wherein the first cover plate is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the first cover plate are provided with anti-reflection layers; the second cover plate is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the second cover plate are both provided with antireflection layers.
With reference to the first aspect, in the first embodiment of the first aspect of the present invention, the first cover plate and the second cover plate are both transparent cover plates.
With reference to the first aspect, in a second implementation manner of the first aspect of the embodiments of the present invention, an encapsulation layer is disposed between the first cover plate or the second cover plate and the OLED device.
With reference to the first aspect, in a third implementation manner of the first aspect of the present invention, the OLED device sequentially includes: the organic light emitting diode comprises a first electrode, an organic functional layer and a second electrode.
With reference to the third embodiment of the first aspect, in a fourth embodiment of the first aspect of the embodiments of the present invention, the first electrode and the second electrode are both transparent electrodes.
With reference to the first aspect, in a fifth implementation manner of the first aspect of the embodiments of the present invention, the thickness of the anti-reflection layer is 3um to 5 um.
With reference to the first aspect, in a sixth implementation manner of the first aspect of the embodiments of the present invention, the anti-reflection layer is made of SiO2And TiO2The material is formed.
With reference to the first aspect, in a seventh implementation manner of the first aspect of the embodiments of the present invention, the antireflection layer is formed on the first cover plate and the second cover plate by a sol-gel method, a magnetron sputtering method, or a thermal evaporation method.
The embodiment of the utility model provides a second aspect provides a display screen, this display screen includes if the utility model discloses the embodiment first aspect first embodiment the utility model discloses the embodiment first aspect second embodiment the utility model discloses the embodiment first aspect third embodiment the utility model discloses the embodiment first aspect fourth embodiment the utility model discloses the embodiment first aspect fifth embodiment the utility model provides a first aspect sixth embodiment reaches the utility model provides a first aspect seventh embodiment the display panel.
The embodiment of the utility model provides a third aspect provides a display terminal, and this display terminal includes: an apparatus body having a device region; the display screen according to the second aspect of the embodiment of the present invention covers the device body.
The utility model discloses technical scheme has following advantage:
the embodiment of the utility model provides a display panel, display screen and display terminal, first surface and second surface through at one of them apron set up the reflection reducing coating, can be so that the light that OLED sent is because interference effect and whole through the reflection reducing coating in the reflection reducing coating, the light output volume of OLED device has been increased, be favorable to reducing light loss, first surface and the second surface at another apron set up the reflection reducing coating simultaneously, can make whole display panel demonstrate the effect of transparent screen, and the setting of two-layer reflection reducing coating can improve display panel's transparency, the display effect of transparent screen has further been improved simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of a transparent screen in the prior art;
fig. 2 is a block diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a block diagram of a display panel according to another embodiment of the present invention.
Reference numerals:
1-a substrate; 2-an anode; 3-a light emitting layer; 4-a cathode; 5-packaging layer; 10-a first cover plate; 20-an OLED device; 30-a second cover plate; 40-an encapsulation layer; 11-an anti-reflection layer; 21-a first electrode; 22-an organic functional layer; 23-second electrode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Further, when an element is referred to as being "formed on" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to achieve the effect of high transmittance, a transparent screen body structure as shown in fig. 1 is generally adopted in the conventional transparent screen, and in the transparent screen body, the transparent screen body includes a substrate 1, an anode 2, a light-emitting layer 3, a cathode 4 and an encapsulation layer 5, wherein the substrate 1 and the encapsulation layer 5 are made of transparent materials, and the anode 2 and the cathode 4 are made of transmission materials, so that the screen body is transparent. However, in consideration of process and cost factors, Mg/Ag is generally used as the transparent cathode, but the transmittance of the transparent electrode is low due to the limitation of the electrode material itself.
Based on this, the embodiment of the present invention provides a display panel, as shown in fig. 2, the display panel includes: the OLED device comprises a first cover plate 10, an OLED device 20 and a second cover plate 30 which are sequentially stacked, wherein the first cover plate 10 is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the first cover plate 10 are provided with anti-reflection layers 11; the second cover plate 30 has a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the second cover plate 30 are both provided with an antireflection layer 11.
Alternatively, the first cover plate 10 may be a substrate, and the second cover plate 30 may be a package cover plate; the first cover plate 10 may be configured as an encapsulation cover plate, and the second cover plate 30 may be configured as a base plate.
The embodiment of the utility model provides a display panel, first surface and second surface through at one of them apron set up anti-reflection coating, can be so that the light that OLED sent is because interference effect and whole through anti-reflection coating in anti-reflection coating, the light output volume of OLED device has been increased, be favorable to reducing light loss, first surface and the second surface at another apron set up anti-reflection coating simultaneously, can make whole display panel demonstrate the effect of transparent screen, and the setting of two-layer anti-reflection coating can improve display panel's transparency, the display effect of transparent screen has further been improved simultaneously.
As an optional implementation manner of the embodiment of the present invention, the first cover plate 10 and the second cover plate 30 are both configured as transparent cover plates. Alternatively, the first cover plate 10 may be a rigid substrate, such as a transparent substrate like a glass substrate, a quartz substrate, or a plastic substrate, or may be a flexible substrate, such as a PI film; the second cover plate 30 may be a rigid substrate, such as a transparent substrate like a glass substrate, a quartz substrate, or a plastic substrate, or a flexible substrate, such as a PI film.
As an optional implementation manner of the embodiment of the present invention, the anti-reflection layer may be made of SiO2And TiO2The material is formed. The anti-reflection layer can also be MgF2、Nb2O5、ZnS、SiNxAnd the like. The antireflection layer may be formed on the first cover plate 10 and the second cover plate 30 by a sol-gel method, a magnetron sputtering method, or a thermal evaporation method.
Specifically, when the anti-reflection layer is formed using the sol-gel method, the first and second cover plates 10 and 30 may be dipped in SiO2And TiO2The first cover plate 10 and the second cover plate 30 are then slowly pulled in the mixed solution. Wherein the anti-reflection performance of the anti-reflection layer obtained by different sol concentrations is different, optionally, the SiO2And TiO2The mixed material can be 3% of the total solution, and the anti-reflection performance of the anti-reflection layer at the concentration is better than that of the anti-reflection layer at other concentrations. In addition, when the OLED device emits light with a specific wavelength, the influence of the pulling speed of the first cover plate 10 and the second cover plate 30 in the solution on the transmittance of the anti-reflection layer is increased and then decreased. Alternatively, the first cover sheet 10 and the second cover sheet 30 may be pulled at a speed of 100mm/min, and the transmittance of the obtained antireflection layer may reach a maximum at the specific wavelength.
After the first cover plate 10 and the second cover plate 30 are extracted from the mixed solution, the first cover plate 10 and the second cover plate 30 may be subjected to a high temperature strengthening treatment at 300 ℃ to 500 ℃ to obtain an anti-reflection layer with good mechanical strength. The thickness of the antireflection layer obtained finally is 3um-5 um. The embodiment of the utility model provides an in, for guaranteeing the homogeneity of light output, the coverage area on anti-reflection layer should be not less than the effective display area of OLED device, sets up anti-reflection layer at the two sides of first apron and second apron and can improve display panel's transmissivity 6% -9%, is showing the transmissivity that has improved display panel.
As an optional implementation manner of the embodiment of the present invention, an encapsulation layer is disposed between the first cover plate 10 or the second cover plate 30 and the OLED device 20. Alternatively, the encapsulation layer may be a Thin-film encapsulation (TFE), that is, an inorganic-organic stack structure is used to cover the OLED device for the purpose of blocking water and oxygen. Wherein, as shown in fig. 3, when the first cover plate 10 is a substrate, the encapsulation layer 40 may be disposed between the OLED device 20 and the second cover plate 30; when the second cover plate 30 is a substrate, the encapsulation layer 40 may be disposed between the OLED device 20 and the first cover plate 10. Specifically, the encapsulation layer 40 may be prepared by Plasma Enhanced Chemical Vapor Deposition (PECVD), Atomic Layer Deposition (ALD), inkjet printing (IJP), and the like, which is not limited by the present invention.
As an optional implementation manner of the embodiment of the present invention, as shown in fig. 3, the OLED device 20 may sequentially include: a first electrode 21, an organic functional layer 22, and a second electrode 34. Among them, the first electrode 21 and the second electrode 23 may be transparent electrodes to improve transparency of the display panel.
Alternatively, the first electrode 21 may be a cathode, and the first electrode 21 may be formed of an Ag electrode, an alloy electrode of Ag, an Al electrode, an alloy electrode of Al, a Cu electrode, an alloy electrode of Cu, a Pt electrode, an alloy electrode of Pt, or the like. The second electrode 23 may be an anode, and may be formed of ITO, IZO, AZO, ZTO, or Ag electrode, an alloy electrode of Ag, or the like. Specifically, the first electrode 21 may be an Mg/Ag alloy electrode, Mg is used to provide electron injection from the cathode to the organic functional layer due to its small work function, and Ag has a large work function, so that the stability of the cathode is improved, the cathode is not easily oxidized, the adhesion between the metal electrode and the organic functional layer is enhanced, and the interface characteristics are improved. The second electrode 23 may be an ITO electrode, and the ITO material has the advantages of good stability, strong light transmittance, low resistivity, and the like. The present invention is not limited to the specific materials of the first electrode 21 and the second electrode 23.
Optionally, the OLED device 20 may further include a carrier function layer, wherein the first electrode 21 and the second electrode 23 are used for introducing carriers, and the carrier function layer is configured to enable the carriers provided by the first electrode 21 and the second electrode 23 to be more easily transmitted to the organic function layer 22 and combined to generate photons. Specifically, the carrier functional layer includes at least one of an electron injection layer, an electron transport layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injection layer, and a specific structure of the carrier functional layer may be set according to actual requirements.
As an optional implementation manner of the embodiment of the present invention, the OLED device 20 may be a PMOLED device or an AMOLED device. When the OLED device 20 is a PMOLED device, the PMOLED device may be a cathode-emitting OLED device, the first electrode 21 may be a total reflection anode, and the second electrode 23 may be a transparent cathode; at this time, in order to facilitate hole injection, the hole injection layer may be made of a high work function material, such as ITO, IZO, AZO, ZTO, or the like. The PMOLED device may also be an OLED device emitting from the anode, and the first electrode 21 may be a total reflection cathode, and the second electrode 23 may be a transparent anode; at this time, in order to facilitate electron injection, the electron injection layer may be prepared using a low work function material, such as LiF, LiQ, MgO, or the like.
When the OLED device 20 is an AMOLED device, a TFT substrate may be disposed between the OLED device 20 and the substrate, and the OLED may be actively driven by a TFT electrode of the TFT substrate, so as to form the AMOLED device.
The embodiment of the utility model provides a still provide a display screen, this display screen includes as above embodiment any display panel. According to the display screen, due to the adoption of the display panel, the anti-reflection layers are respectively arranged on the first cover plate and the second cover plate, so that the light output quantity of the OLED device is increased, the light loss is favorably reduced, meanwhile, the whole display panel can show the effect of a transparent screen, and the transparency of the display panel is improved.
The embodiment of the utility model provides a still provide a display device, including equipment body and foretell display screen. In practical applications, the display device may be any product or component having a display function, such as a mobile phone, an OLED display panel, a tablet computer, a television, a display, a notebook computer, a digital camera, a vehicle-mounted display screen, and a navigator, which are only examples, but not limited thereto, and has an advantage of high transparency.
Although the present invention has been described in detail with respect to the exemplary embodiments and the advantages thereof, those skilled in the art will appreciate that various changes, substitutions and alterations can be made to the embodiments without departing from the spirit of the invention and the scope of the invention as defined by the appended claims. For other examples, one of ordinary skill in the art will readily appreciate that the order of the process steps may be varied while maintaining the scope of the present invention.
Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
Claims (9)
1. A display panel, comprising: a first cover plate, an OLED device and a second cover plate which are sequentially stacked, wherein,
the first cover plate is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the first cover plate are both provided with an anti-reflection layer;
the second cover plate is provided with a first surface and a second surface opposite to the first surface, and the first surface and the second surface of the second cover plate are both provided with antireflection layers.
2. The display panel according to claim 1, wherein the first cover plate and the second cover plate are both transparent cover plates.
3. The display panel of claim 1, wherein an encapsulation layer is disposed between the first cover plate or the second cover plate and the OLED device.
4. The display panel of claim 1, wherein the OLED device comprises, in order: the organic light emitting diode comprises a first electrode, an organic functional layer and a second electrode.
5. The display panel according to claim 4, wherein the first electrode and the second electrode are both transparent electrodes.
6. The display panel according to claim 1, wherein the antireflection layer has a thickness of 3 to 5 um.
7. The display panel according to claim 1, wherein the antireflection layer is formed on the first cover plate and the second cover plate by a sol-gel method, a magnetron sputtering method, or a thermal evaporation method.
8. A display screen, characterized by comprising the display panel of any one of claims 1 to 7.
9. A display terminal, comprising:
an apparatus body having a device region;
the display screen of claim 8 overlaid on the device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921176476.5U CN210443584U (en) | 2019-07-24 | 2019-07-24 | Display panel, display screen and display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921176476.5U CN210443584U (en) | 2019-07-24 | 2019-07-24 | Display panel, display screen and display terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210443584U true CN210443584U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921176476.5U Active CN210443584U (en) | 2019-07-24 | 2019-07-24 | Display panel, display screen and display terminal |
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| CN (1) | CN210443584U (en) |
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- 2019-07-24 CN CN201921176476.5U patent/CN210443584U/en active Active
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Address after: 215300, 188, Feng Feng Road, hi tech Zone, Kunshan, Jiangsu, Suzhou Patentee after: Suzhou Qingyue Photoelectric Technology Co., Ltd Address before: 215300, 188, Feng Feng Road, hi tech Zone, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Visionox Technology Co.,Ltd. |
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