CN113284936A - OLED display panel and display device - Google Patents
OLED display panel and display device Download PDFInfo
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- CN113284936A CN113284936A CN202110697608.4A CN202110697608A CN113284936A CN 113284936 A CN113284936 A CN 113284936A CN 202110697608 A CN202110697608 A CN 202110697608A CN 113284936 A CN113284936 A CN 113284936A
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- 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
- H10K59/10—OLED displays
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Abstract
The utility model relates to the technical field of display, and provides an OLED display panel and a display device, wherein the OLED display panel comprises a display layer, a polarizer and a cover plate layer, wherein the polarizer is positioned at the display side of the display layer; the cover plate layer is positioned on one side of the polaroid, which is far away from the display layer; the polaroid comprises at least one functional layer, the functional layer is of a conductive structure, and the square resistance of the functional layer is 105Ω/sq‑1011Omega/sq. The OLED display panel can absorb static electricity through the conductive function layer in the polaroid, so that the display effect of the OLED display panel is improved.
Description
Technical Field
The disclosure relates to the technical field of display, in particular to an OLED display panel and a display device.
Background
In the prior art, the OLED display panel is easy to generate static electricity during use, and the static electricity is easy to cause abnormal driving of circuits in the OLED display panel, so that the OLED display panel is abnormal in display.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
According to one aspect of the present disclosure, an OLED display panel is provided, which includes a display layer, a polarizer, a cover plate layer, the polarizer being located at a display side of the display layer; the cover plate layer is positioned on one side of the polaroid, which is far away from the display layer; the polaroid comprises at least one functional layer, the functional layer is of a conductive structure, and the square resistance of the functional layer is 105Ω/sq-1011Ω/sq。
In one exemplary embodiment of the present disclosure, the functional layer includes a conductive coating, and the polarizer further includes: the phase difference layer is arranged on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate; the conductive coating is located on one side of the substrate base plate.
In one exemplary embodiment of the present disclosure, the conductive coating has a thickness of 1um or less.
In an exemplary embodiment of the present disclosure, the material of the conductive coating layer includes a metal and an inorganic salt, and the metal is doped in the inorganic salt.
In one exemplary embodiment of the present disclosure, the conductive coating is located between the linear polarizer and the substrate base plate; or, the conductive coating is located between the linear polarizer and the phase difference layer; or the conductive coating is positioned on one side of the phase difference layer, which faces away from the substrate base plate; or the conductive coating is positioned on one side of the substrate base plate, which faces away from the linear polarizer.
In an exemplary embodiment of the present disclosure, the polarizer further includes: the first protective layer is positioned between the substrate base plate and the linear polaroid; a second protective layer between the linear polarizer and the retardation layer; the bonding layer is positioned on one side of the phase difference layer, which is far away from the substrate base plate. The conductive coating is positioned between the first protective layer and the substrate base plate; or, the conductive coating is positioned between the first protective layer and the linear polarizer; or, the conductive coating is located between the linear polarizer and the second protective layer; or, the conductive coating is positioned between the second protective layer and the phase difference layer; or, the conductive coating is located between the phase difference layer and the bonding layer; or the conductive coating is positioned on one side of the substrate base plate, which faces away from the linear polarizer.
In an exemplary embodiment of the present disclosure, the functional layer includes a substrate base plate, and the polarizer further includes: the linear polarizer is positioned on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate.
In one exemplary embodiment of the present disclosure, the functional layer includes a linear polarizer, and the polarizer further includes: the linear polarizer is positioned on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate.
In an exemplary embodiment of the present disclosure, the functional layer includes a phase difference layer, and the polarizer further includes: the linear polarizer is positioned on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate.
In an exemplary embodiment of the present disclosure, the functional layer includes a first protective layer, and the polarizer further includes: the phase difference layer is arranged on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate; the first protective layer is located between the substrate base plate and the linear polarizer.
In an exemplary embodiment of the present disclosure, the functional layer includes a second protective layer, and the polarizer further includes: the phase difference layer is arranged on the first protective layer, and the linear polaroid is positioned on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate; the first protective layer is positioned between the substrate base plate and the linear polaroid; the second protective layer is located between the linear polarizer and the retardation layer.
In one exemplary embodiment of the present disclosure, the functional layer includes an adhesive layer, and the polarizer further includes: the phase difference film comprises a substrate base plate, a linear polaroid, a phase difference layer, a first protective layer and a second protective layer, wherein the linear polaroid is positioned on one side of the substrate base plate; the phase difference layer is positioned on one side of the linear polaroid, which is far away from the substrate base plate; the first protective layer is positioned between the substrate base plate and the linear polaroid; a second protective layer between the linear polarizer and the retardation layer; the bonding layer is positioned on one side of the phase difference layer, which is far away from the substrate base plate.
In one exemplary embodiment of the present disclosure, the phase difference layer includes: a quarter-wave plate, the polarization direction of the linear polarizer and the optical axis of the quarter-wave plate form an angle of 45 degrees or 135 degrees.
According to an aspect of the present disclosure, there is provided a display device including the OLED display panel described above.
The utility model provides a OLED display panel, display device, this OLED display panel includes display layer, polaroid, apron layer, and the polaroid is located the display side of display layer; the cover plate layer is positioned on one side of the polaroid, which is far away from the display layer; the polaroid comprises at least one functional layer, the functional layer is of a conductive structure, and the square resistance of the functional layer is 105Ω/sq-1011Omega/sq. The OLED display panel can absorb static electricity through the conductive function layer in the polaroid, so that the display effect of the OLED display panel is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 is a schematic diagram of an exemplary embodiment of an OLED display panel according to the present disclosure;
FIG. 2 is a schematic diagram of a polarizer according to an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic view of a polarizer according to another exemplary embodiment of the present disclosure;
FIG. 4 is a schematic view of a polarizer according to another exemplary embodiment of the present disclosure;
FIG. 5 is a schematic view of a polarizer according to another exemplary embodiment of the present disclosure;
FIG. 6 is a schematic view of a polarizer according to another exemplary embodiment of the present disclosure;
FIG. 7 is a schematic view of a polarizer according to another exemplary embodiment of the present disclosure;
FIG. 8 is a schematic view of a polarizer according to another exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
The present exemplary embodiment provides an OLED display panel, which may include a polarizer, as shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of an exemplary embodiment of the OLED display panel of the present disclosure, and fig. 2 is a schematic structural diagram of a polarizer in an exemplary embodiment of the present disclosure. As shown in fig. 1, the OLED display panel may include: display layer 01, polaroid 02, apron layer 03, polaroid 02 can be located the demonstration side of display layer 01, apron layer 03 is located the one side that polaroid 02 deviates from the display layer. The polarizer may include: the functional layer having a conductive function, as shown in fig. 2, may include a conductive coating 4. The cover plate layer 03 may be cover glass.
The OLED display panel provided in this exemplary embodiment can absorb and conduct static electricity on the OLED display panel through the conductive coating 4 in the polarizer, thereby reducing the influence degree of the static electricity on the circuit in the OLED display panel and improving the display effect of the OLED display panel.
As shown in fig. 2, the polarizer may further include: the phase difference layer comprises a substrate base plate 1, a linear polaroid 2 and a phase difference layer 3, wherein the linear polaroid 2 can be positioned on one side of the substrate base plate 1; the phase difference layer 3 may be located on the side of the linear polarizer 2 facing away from the substrate base plate 1; the conductive coating 4 may be located on one side of the substrate base plate.
In the present exemplary embodiment, the conductive coating layer has a certain conductive capability, and the material of the conductive coating layer may include a metal and an inorganic salt, and the metal may be doped in the inorganic salt. The inorganic salts may include: one or more of aluminum salt, zinc salt and silver salt. The metal may include: one or more of copper, aluminum, iron and silver. It should be understood that in other exemplary embodiments, the material of the conductive coating may be other materials, for example, the material of the conductive coating may include conductive materials such as metal, indium tin oxide, and the like.
In the exemplary embodiment, in order to avoid the conductive coating from affecting the light-emitting rate of the OLED display panel, the thickness of the conductive coating 4 may be less than or equal to 1um, for example, the thickness of the conductive coating may be 0.1um, 0.2um, 0.3um, 0.4um, 0.5um, 0.6um, 0.7um, 0.8um, 0.9um, 1um, and the like.
In the present exemplary embodiment, the sheet resistance of the conductive coating may be 105Ω/sq-1011Omega/sq, the square resistance of the conductive coating may be, for example, 105Ω/sq、106Ω/sq、107Ω/sq、108Ω/sq、109Ω/sq、1010Ω/sq、1011Omega/sq, etc.
In this exemplary embodiment, as shown in fig. 2, the polarizer may further include: a first protective layer 5, a second protective layer 6, and an adhesive layer 7, wherein the first protective layer 5 may be located between the substrate base plate 1 and the linear polarizer 2; a second protective layer may be located between the linear polarizer 2 and the retardation layer 3; the adhesive layer 7 may be located on the side of the phase difference layer 3 facing away from the substrate base plate 1. The material of the first and second protective layers 5 and 6 may include one or more of Cyclo Olefin Polymer (COP), and Cellulose Triacetate (TAC). The first protective layer 5 and the second protective layer 6 can support and protect the linear polarizer 2, so that water vapor and oxygen are prevented from contacting the linear polarizer 2, and the polarizer has better optical performance. The adhesive layer 7 may be a pressure sensitive adhesive, and the adhesive layer 7 may be used to adhere the display layer 01.
In the present exemplary embodiment, the linear polarizer 2 may be an iodine-based polarizing film having polyvinyl alcohol (PVA) as a substrate. The linear polarizer can have a thickness of 1-15 um, for example, 1um, 8um, 15um, preferably 5 um-12 um.
In the present exemplary embodiment, as shown in fig. 2, the conductive coating layer 4 may be located between the phase difference layer 3 and the adhesive layer 7. It should be understood that in other exemplary embodiments, the conductive coating 4 may be located in other locations as well. For example, as shown in fig. 3, which is a schematic structural diagram of a polarizer in another exemplary embodiment of the present disclosure, the conductive coating 4 may also be located on a side of the substrate base plate 1 facing away from the linear polarizer 2. As shown in fig. 4, which is a schematic structural diagram of a polarizer in another exemplary embodiment of the present disclosure, the conductive coating 4 may be located between the first protective layer 5 and the base substrate 1. As shown in fig. 5, which is a schematic structural diagram of a polarizer in another exemplary embodiment of the present disclosure, the conductive coating 4 may also be located between the first protective layer 5 and the linear polarizer 2. As shown in fig. 6, which is a schematic structural diagram of a polarizer in another exemplary embodiment of the present disclosure, the conductive coating 4 may also be located between the linear polarizer 2 and the second protective layer 6. As shown in fig. 7, which is a schematic structural diagram of a polarizer in another exemplary embodiment of the present disclosure, the conductive coating 4 may also be located between the second protective layer 6 and the phase difference layer 3.
In the present exemplary embodiment, the polarizer may be located on the display side of the display layer. The phase difference layer 3 and the linear polarizer 2 can form a circular polarizer or an elliptical polarizer, and the circular polarizer or the elliptical polarizer can reduce the reflected light of the external light of the OLED display panel on the common cathode of the display layer, so that the display effect of the OLED display panel is improved. In the present exemplary embodiment, the phase difference layer 3 and the linear polarizer 2 may form a circular polarizer, and the phase difference layer may include: a quarter-wave plate, the polarization direction of the linear polarizer 2 and the optical axis of the quarter-wave plate can form an angle of 45 degrees or 135 degrees. It should be understood that in other exemplary embodiments, the phase difference layer may have other structures, for example, the phase difference layer may further include: the quarter wave plate and the half wave plate can be positioned on one side of the half wave plate far away from the substrate base plate. The slow axis of the quarter-wave plate may be at 2 α +45 ° to the absorption axis of the linear polarizer 2; the slow axis of the half wave plate may be at an angle α to the absorption axis of the linear polarizer, and the slow axis of the half wave plate may be at an angle α +45 ° to the slow axis of the quarter wave plate; where α may be 14 ° -16 °, for example, α may be 14 °, 15 °, 16 °. The material of the quarter-wave plate and the half-wave plate may comprise a liquid crystal material. The total thickness of the retardation layer may be between 1-7um, e.g. 1um, 3um, 7 um.
In this exemplary embodiment, the substrate 1 may be a flexible substrate, the polarizer may be applied to a flexible OLED display panel, and the material of the flexible substrate may include one or more of polymethyl methacrylate, thermoplastic polyurethane, polyimide, polyethylene terephthalate, and cyclic olefin polymer.
In the present exemplary embodiment, the display layer 01 in the OLED display panel may include a circuit layer and a light emitting unit layer, the circuit layer may include a pixel driving circuit, the light emitting unit layer may include a light emitting unit, and the pixel driving circuit may be configured to drive the light emitting unit to emit light.
It should be understood that, in other exemplary embodiments, the polarizer in the OLED display panel of the present disclosure may also have other structures such that the polarizer includes a functional layer having a conductive function. For example, as shown in fig. 8, a schematic structural diagram in another exemplary embodiment of the polarizer of the present disclosure is shown. The polarizer may include a substrate base plate 1, a first protective layer 5, a linear polarizer 2, a second protective layer 6, a phase difference layer 3, and an adhesive layer 7, which are sequentially stacked. At least one of the base substrate 1, the first protective layer 5, the linearly polarizing plate 2, the second protective layer 6, the retardation layer 3, and the adhesive layer 7 may form the functional layer, that is, at least one of the base substrate 1, the first protective layer 5, the linearly polarizing plate 2, the second protective layer 6, the retardation layer 3, and the adhesive layer 7 may have a conductive function. The square resistance of the functional layer may be 105Ω/sq-1011Omega/sq, the square resistance of the conductive coating may be, for example, 105Ω/sq、106Ω/sq、107Ω/sq、108Ω/sq、109Ω/sq、1010Ω/sq、1011Omega/sq, etc. The functional layer may be formed by doping particles having a conductive property in its original structure, for example, doping conductive metal particles in its original structure, or by directly forming the functional layer from a material having a conductive property.
The present exemplary embodiment also provides a display device, which may include the OLED display panel described above, and the display device may be a display device such as a mobile phone, a tablet computer, a television, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the following claims.
Claims (11)
1. An OLED display panel, comprising:
a display layer;
the polaroid is positioned on the display side of the display layer;
the cover plate layer is positioned on one side of the polaroid, which is far away from the display layer;
the polaroid comprises at least one functional layer, the functional layer is of a conductive structure, and the square resistance of the functional layer is 105Ω/sq-1011Ω/sq。
2. The OLED display panel of claim 1, wherein the functional layer comprises a conductive coating, the polarizer further comprising:
a substrate base plate;
a linear polarizer located on one side of the substrate base plate;
the phase difference layer is positioned on one side of the linear polarizer, which is far away from the substrate base plate;
the conductive coating is located on one side of the substrate base plate.
3. The OLED display panel of claim 2, wherein the conductive coating has a thickness of 1um or less.
4. The OLED display panel of claim 2, wherein the material of the conductive coating includes a metal and an inorganic salt, the metal being doped in the inorganic salt.
5. The OLED display panel of claim 2,
the conductive coating is positioned between the linear polarizer and the substrate base plate;
or, the conductive coating is located between the linear polarizer and the phase difference layer;
or the conductive coating is positioned on one side of the phase difference layer, which faces away from the substrate base plate;
or the conductive coating is positioned on one side of the substrate base plate, which faces away from the linear polarizer.
6. The OLED display panel of claim 2, wherein the polarizer further comprises:
a first protective layer positioned between the substrate base plate and the linear polarizer;
a second protective layer between the linear polarizer and the retardation layer;
and the bonding layer is positioned on one side of the phase difference layer, which is far away from the substrate base plate.
7. The OLED display panel of claim 6, wherein the conductive coating is between the first protective layer and the base substrate;
or, the conductive coating is positioned between the first protective layer and the linear polarizer;
or, the conductive coating is located between the linear polarizer and the second protective layer;
or, the conductive coating is positioned between the second protective layer and the phase difference layer;
or, the conductive coating is located between the phase difference layer and the bonding layer;
or the conductive coating is positioned on one side of the substrate base plate, which faces away from the linear polarizer.
8. The OLED display panel of claim 1, wherein the polarizer comprises:
a substrate base plate;
a linear polarizer located on one side of the substrate base plate;
the phase difference layer is positioned on one side of the linear polarizer, which is far away from the substrate base plate;
wherein at least one of the substrate, the linearly polarizing plate and the retardation layer forms the functional layer.
9. The OLED display panel of claim 1, wherein the polarizer comprises:
a substrate base plate;
a linear polarizer located on one side of the substrate base plate;
the phase difference layer is positioned on one side of the linear polarizer, which is far away from the substrate base plate;
a first protective layer positioned between the substrate base plate and the linear polarizer;
a second protective layer between the linear polarizer and the retardation layer;
the bonding layer is positioned on one side, away from the substrate base plate, of the phase difference layer;
wherein at least one of the substrate, the linear polarizer, the retardation layer, the first protective layer, the second protective layer and the adhesive layer forms the functional layer.
10. The OLED display panel according to any one of claims 2 to 9, wherein the phase difference layer includes:
a quarter-wave plate, the polarization direction of the linear polarizer and the optical axis of the quarter-wave plate form an angle of 45 degrees or 135 degrees.
11. A display device, comprising: the OLED display panel of any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697608.4A CN113284936A (en) | 2021-06-23 | 2021-06-23 | OLED display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697608.4A CN113284936A (en) | 2021-06-23 | 2021-06-23 | OLED display panel and display device |
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| CN113284936A true CN113284936A (en) | 2021-08-20 |
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| CN202110697608.4A Pending CN113284936A (en) | 2021-06-23 | 2021-06-23 | OLED display panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023907A (en) * | 2021-11-01 | 2022-02-08 | 武汉天马微电子有限公司 | Display panel |
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2021
- 2021-06-23 CN CN202110697608.4A patent/CN113284936A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023907A (en) * | 2021-11-01 | 2022-02-08 | 武汉天马微电子有限公司 | Display panel |
| CN114023907B (en) * | 2021-11-01 | 2023-10-24 | 武汉天马微电子有限公司 | Display panel |
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