CN109802046B - OLED display device - Google Patents
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- CN109802046B CN109802046B CN201711139244.8A CN201711139244A CN109802046B CN 109802046 B CN109802046 B CN 109802046B CN 201711139244 A CN201711139244 A CN 201711139244A CN 109802046 B CN109802046 B CN 109802046B
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Abstract
The embodiment of the invention relates to the field of OLED display, in particular to an OLED display device which is used for improving the light emitting efficiency of an organic light emitting layer. In the embodiment of the invention, the active organic light emitting diode OLED display device comprises a light emitting module and a circular polarizing plate arranged on the light emitting side of the light emitting module; the organic light-emitting layer in the light-emitting module comprises a high-molecular organic light-emitting color group and spiral liquid crystal; the high molecular organic luminous color group is used for generating first-line polarized light; the spiral liquid crystal is used for converting the generated first linear polarized light into circular polarized light; the circular polarizing plate comprises a phase difference compensation film and a polarizing layer; the phase difference compensation film is used for converting circular polarized light into second-line polarized light; the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light and is used for transmitting the second linearly polarized light. The first-line polarized light generated by the organic light-emitting layer can be completely transmitted out, and the light-emitting efficiency of the light-emitting layer is further improved.
Description
Technical Field
The embodiment of the invention relates to the field of OLEDs, in particular to an OLED display device.
Background
An Organic Light-Emitting Diode (OLED) display device is a next generation display technology with promising prospects. In order to eliminate the influence of ambient light on the display effect of the OLED display device and improve the contrast of the image displayed by the OLED display device, a circular polarizing plate is generally attached to the package substrate of the OLED display device.
In the prior art, after natural light emitted by an organic light emitting layer in an OLED display device is emitted through a circular polarizing plate, at least half of the light is absorbed by the circular polarizing plate, so that the problem of reduction of the light emitting efficiency of the organic light emitting layer is caused; furthermore, the luminous intensity of an OLED display device has a major influence on the endurance life thereof, and thus, the service life of the OLED display device is also influenced.
Disclosure of Invention
The embodiment of the invention provides an active Organic Light Emitting Diode (OLED) display device, which is used for solving the problem of low luminous efficiency of an organic luminous layer in the prior art.
The embodiment of the invention provides an active organic light emitting diode OLED display device, which comprises: the light-emitting module comprises a light-emitting module and a circular polarizing plate arranged on the light-emitting side of the light-emitting module; the organic light-emitting layer in the light-emitting module comprises a high-molecular organic light-emitting color cluster and spiral liquid crystal; the high molecular organic luminous color group is used for generating first-line polarized light; the spiral liquid crystal is used for converting the generated first linear polarized light into circular polarized light; the circular polarizing plate comprises a phase difference compensation film and a polarizing layer; the phase difference compensation film is used for converting the circular polarized light into second-line polarized light; and the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, and the polarizing layer is used for transmitting the second linearly polarized light.
Optionally, the light emitting module further comprises a hole transport layer; a first alignment film is arranged between the hole transport layer and the organic light-emitting layer; the first alignment film is used for carrying out spiral alignment on the liquid crystal in the organic light-emitting layer.
Optionally, the material of the phase difference compensation film is a liquid crystal material; the thickness range of the phase difference compensation film is 1-10 um.
Optionally, the polarizing layer comprises a liquid crystal doped with a dichroic organic dye; the dichroic organic dye doped liquid crystal is arranged in a nematic phase for generating linear polarization.
Optionally, a phase difference compensation film of the liquid crystal material is coated on the second alignment film; the second alignment film is used for arranging the liquid crystal serving as the phase difference compensation film in a preset direction.
Optionally, the dichroic organic dye-doped liquid crystal is coated on a third alignment film; the third alignment film is for aligning the dichroic organic dye-doped liquid crystal in a nematic phase.
Optionally, the second alignment film is disposed on the first surface of the substrate away from the light emitting module, and the second surface of the substrate is used to form an anode of the light emitting module.
Optionally, the third alignment film is disposed on a surface of the first substrate close to the light emitting module, and the first substrate is used as an encapsulation layer of the OLED display device.
Optionally, the OLED display device further includes a second substrate; the second substrate is positioned on one surface, away from the light-emitting module, of the cathode of the light-emitting module, and the second substrate is used as an encapsulation layer of the OLED display device.
Optionally, the polymeric organic luminescent chromophore comprises any one of: polyfluorene polymers, aromatic amines.
In the embodiment of the invention, the organic light-emitting layer comprises the high-molecular organic light-emitting color cluster, the high-molecular organic light-emitting material generates first-line polarized light, and the first-line polarized light is converted into circular polarized light after passing through the spiral liquid crystal; the circularly polarized light is converted into second-line polarized light through the phase difference compensation film; the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, so that the second linearly polarized light can be completely transmitted. Therefore, the first-line polarized light generated by the organic light-emitting layer can be completely transmitted out, and the light-emitting efficiency of the organic light-emitting layer is further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an active organic light emitting diode OLED display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a circular polarizing plate according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another circular polarizer according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another circular polarizer according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another circular polarizer according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another OLED display device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another OLED display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an active organic light-emitting diode (OLED) display device, which comprises a light-emitting module and a circular polarizing plate arranged on the light-emitting side of the light-emitting module; the organic light-emitting layer in the light-emitting module comprises a high-molecular organic light-emitting color cluster and spiral liquid crystal; the high molecular organic luminous color group is used for generating first-line polarized light; the spiral liquid crystal is used for converting the generated first linear polarized light into circular polarized light; the circular polarizing plate comprises a phase difference compensation film and a polarizing layer; the phase difference compensation film is used for converting the circular polarized light into second-line polarized light; and the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, and the polarizing layer is used for transmitting the second linearly polarized light.
In the embodiment of the invention, the organic light-emitting layer in the light-emitting module comprises the high-molecular organic light-emitting color group, the high-molecular organic light-emitting material generates first line polarized light, and the first line polarized light is converted into circular polarized light after passing through the spiral liquid crystal; the circularly polarized light is converted into second-line polarized light through the phase difference compensation film; the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, so that the second linearly polarized light can be completely transmitted. Therefore, the first-line polarized light generated by the organic light-emitting layer can be completely transmitted out, and the light-emitting efficiency of the light-emitting layer is further improved.
In the embodiment of the invention, the light-emitting module further comprises a hole transport layer; a first alignment film is arranged between the hole transport layer and the organic light-emitting layer; the first alignment film is used for carrying out spiral alignment on the liquid crystal in the organic light-emitting layer.
In an embodiment of the present invention, the polymer organic luminescent chromophore includes any one of the following: polyfluorene polymer and arylamine group polymer.
In the embodiment of the invention, the high molecular organic luminescent color group generates the first line of polarization light; in order to completely transmit the linear polarization light generated by the high molecular organic luminescent color group. In the embodiment of the invention, the first line of polarized light generated by the high molecular organic luminous color group passes through the liquid crystal which is spirally arranged to form the circularly polarized light. After the circularly polarized light passes through a phase difference compensation film, linearly polarized light is formed; the light transmission direction of the polarizing layer is set to be the same as the first linear polarization vibration direction, so that the linear polarization light generated by the polymer organic light emitting layer can be transmitted out by 100%.
The embodiment of the invention provides the following implementation modes that the two liquid crystals are spirally arranged.
Implementation mode one
And coating the sol of the macromolecular organic luminous color group and the liquid crystal mixed according to a certain proportion on a hole transport layer, and enabling liquid crystal molecules to be spirally arranged through photo-alignment. In order to ensure that the hole transport layer is not melted by the sol of the polymer organic luminescent color groups and the liquid crystal, it is required to satisfy that the extraction capability of the sol of the polymer organic luminescent color groups and the liquid crystal mixed in a certain proportion in the organic luminescent layer is smaller than that of the hole transport layer material. The organic light-emitting layer is directly deposited on the hole transport layer, so that the thickness of the OLED display module can be reduced.
Implementation mode two
A first alignment film is arranged between the hole transport layer and the organic light-emitting layer; the first alignment film is used for carrying out spiral alignment on the liquid crystal in the organic light-emitting layer. Specifically, rubbing and rubbing the alignment on a first alignment film, wherein a groove is arranged on the first alignment film, and the groove is in a spiral shape; the high molecular organic luminous color group and the liquid crystal sol are formed in the groove of the first alignment film and are solidified after forming a spiral shape. The rubbing alignment can provide the liquid crystal with a strong alignment capability. Alternatively, the first alignment film may be coated with a sol of a polymer light-emitting organic material and a liquid crystal, and the liquid crystal may be spirally formed by photoalignment. The optical alignment mode is easy to control the alignment mode of liquid crystal molecules, ultraviolet light can be used for irradiating on the high-molecular organic luminous color cluster and the sol of the liquid crystal, and parameters of the liquid crystal molecules, such as an inclination angle and surface orientation intensity, are controlled by using the angle of incident light and the irradiation time; thereby realizing the spiral arrangement of the liquid crystal molecules.
Fig. 1 shows an active organic light emitting diode OLED display device to which an embodiment of the present invention is applied. As shown in fig. 1, the OLED display device 1 includes a circular polarizing plate 10 and a light emitting film group 11, which are sequentially disposed. The light-emitting module comprises an anode 110, a hole transport layer 111, an organic light-emitting layer 112, an electron transport layer 113 and a cathode 114 which are arranged in sequence; the organic light-emitting layer comprises a high-molecular organic light-emitting chromogen and spiral liquid crystal; the high molecular organic luminous color group is used for generating first-line polarized light; the spiral liquid crystal is used for converting the generated first linear polarized light into circular polarized light; the circular polarizing plate comprises a phase difference compensation film and a polarizing layer; the phase difference compensation film is used for converting the circular polarized light into second-line polarized light; and the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, and the polarizing layer is used for transmitting the second linearly polarized light.
In the embodiment of the invention, in order to eliminate the influence of ambient light on the OLED display device and improve the display contrast of the OLED display device, the circular polarizing plate is added. The circular polarizing plate includes a polarizing layer and a phase difference compensation film. When external natural light passes through the polarizing layer of the circular polarizing plate, linear polarization is formed, and then, a left-handed (right-handed) circular polarization film is formed through the phase difference compensation film; the left-handed (right-handed) circular polarized light forms right-handed (left-handed) circular polarized light after being reflected by the cathode and the anode; after the right-handed (left-handed) circular polarized light passes through the phase difference compensation film, linear polarized light vertical to the light transmission direction of the polarizing layer is formed and is completely absorbed by the polarizing layer, so that the anti-reflection effect is realized.
In the embodiment of the present invention, the structure of the circular polarizing plate includes various structures. Fig. 2 is a schematic structural diagram of a circular polarizing plate to which an embodiment of the present invention is applied. As shown in fig. 2, the circular polarizing plate 10 includes a phase difference compensation film 101, a polarizing layer 102, and a second alignment film 103. The material of the phase difference compensation film 101 is a liquid crystal material such as azo; the thickness range of the phase difference compensation film is 1-10 um; this can further reduce the thickness of the OLED display device. Alternatively, in order to satisfy the alignment of the liquid crystal molecules as the retardation compensation film, a liquid crystal material as the retardation compensation film is coated on the second alignment film 103, and the second alignment film 103 is used to align the liquid crystal as the retardation compensation film in a predetermined direction. Alternatively, the retardation compensation film is an 1/4 λ retardation compensation film in order to convert circularly polarized light emitted from the light-emitting layer into linearly polarized light. Optionally, the second alignment film 103 is disposed on a first surface of the substrate 12 away from the light emitting module, and a second surface of the substrate is used for forming an anode of the light emitting module (see fig. 6). The first surface of the substrate is provided with a second alignment film, and the second surface is provided with an anode. The polarizing layer 102 includes a liquid crystal doped with a dichroic organic dye; the dichroic organic dye doped liquid crystal is arranged in a nematic phase for generating linear polarization. And coating the liquid crystal doped with the dichroic organic dye on the cured phase difference compensation film, and enabling the liquid crystal doped with the dichroic organic dye to be in nematic phase arrangement in a light alignment mode.
In the embodiment of the present invention, the material of the substrate may be transparent polyimide CPI, Cyclic Olefin Polymer (COP) or Cyclic Olefin Copolymer (COC), or glass; the thickness range of the substrate is 10-30 um. In the embodiment of the invention, the birefringence of the substrate material is lower than a refractive index threshold value. Optionally, the birefringence R of the substratethLess than 20nm, more preferably less than 5 nm. Therefore, the OLED display can be prevented from displaying rainbow patterns.
Fig. 3 is a schematic structural view showing another circularly polarizing plate to which an embodiment of the present invention is applied. As shown in fig. 3, the circularly polarizing plate 10c includes a phase difference compensation film 101, a polarizing layer 102, and a third alignment film 105. The retardation compensation film 101 is the retardation compensation film 101 shown in fig. 2, and is not described herein again. The polarizing layer 102 includes a liquid crystal doped with a dichroic organic dye. Alternatively, a liquid crystal doped with a dichroic organic dye is applied to the third alignment film 105; the third alignment film 105 is for aligning the dichroic organic dye-doped liquid crystal in a nematic phase; the dichroic organic dye-doped liquid crystal may be aligned in a nematic phase by means of photoalignment. The retardation compensation film 101 is disposed on the polarizing layer 102. Optionally, the third alignment film 105 is disposed on a surface of the first substrate close to the light emitting module, and the first substrate is used as an encapsulation layer of the OLED display device. Alternatively, the retardation compensation film is an 1/4 λ retardation compensation film in order to convert circularly polarized light emitted from the light-emitting layer into linearly polarized light.
Fig. 4 is a schematic structural view showing another circularly polarizing plate to which the embodiment of the present invention is applied. As shown in fig. 4, the circularly polarizing plate 10a includes a phase difference compensation film 101a, a polarizing layer 102, and a second alignment film 103. The retardation compensation film 101a is disposed on the second alignment film 103 (i.e., the second alignment film 103 in fig. 2), and the material of the retardation compensation film 101a may be a low birefringent material such as Polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), or Cyclic Olefin Polymer (COP). The polarizing layer is the polarizing layer 102 in fig. 2.
In the embodiment of the invention, the second alignment film 103 and the third alignment film 105 in fig. 2 to 4 can be omitted. Alternatively, the phase difference compensation film 101 in fig. 2 and 4 may be formed directly on the substrate; the polarizing layer of fig. 3 may be disposed on the first substrate. On one hand, the process of depositing the second alignment film and the third alignment film may be omitted, and on the other hand, the thickness of the OLED display device may be further reduced. The material of the second alignment film and the third alignment film includes any one of: polyethylene terephthalate (PET), Cyclic Olefin Polymer (COP), polymethyl methacrylate (PMMA), Polyimide (PI); wherein the thickness of the second alignment film and the third alignment film is in the range of 1nm to 100 nm.
Fig. 5 is a schematic structural view showing another circular polarizing plate to which the embodiment of the present invention is applied. As shown in fig. 5, the circularly polarizing plate 10b includes a phase difference compensation film 101 and a polarizing layer 102 a; the retardation compensation film 101 is the retardation compensation film 101 shown in fig. 2, and is not described herein again. The polarizing layer 102a includes a Triacetyl-cellulose (TAC) film, a Polyvinyl alcohol (PVA) film, and a Triacetyl-cellulose (TAC) film sequentially disposed; that is, TAC films are laminated on both sides of the PVA film to form the polarizing layer 102 a. Wherein, the PVA film is a high molecular polymer; dyeing with various dichroic organic dyes (iodine), extending at certain humidity and temperature to absorb the dichroic dyes to form polarization performance, absorbing polarized light parallel to the arrangement direction and allowing only polarized light in the vertical direction to pass; wherein, the TAC film isolates moisture and nutrients and protects the PVA film.
In an embodiment of the present invention, an alternative structure of an OLED display device is provided. Fig. 6 is a schematic structural view illustrating another OLED display device to which an embodiment of the present invention is applied. As shown in fig. 6, the OLED display device 1a includes an encapsulation layer 14, a circularly polarizing plate 10/10a/10b, a substrate 12, an anode 110, a hole transport layer 111, an organic light emitting layer 112, an electron transport layer 113, a cathode 114, and a second substrate 13. In a specific structure forming process, a circular polarizing plate 10/10a/10b is arranged on a first surface of a substrate 12, an anode 110 is arranged on a second surface opposite to the first surface, and then a hole transport layer 111, an organic light emitting layer 112, an electron transport layer 113 and a cathode 114 are sequentially deposited on the anode; the encapsulation of the OLED display device is achieved by disposing the encapsulation layer 14 on the second substrate 13 disposed under the cathode and the circularly polarizing plates 10/10a/10 b.
Fig. 7 is a schematic structural view illustrating another OLED display device to which an embodiment of the present invention is applied. As shown in fig. 7, the OLED display device 1b includes a circular polarizing plate 10/10a/10b, an encapsulation layer 14, an anode 110, a hole transport layer 111, an organic light emitting layer 112, an electron transport layer 113, a cathode 114, and a second substrate 13; the second substrate 13 is located on a surface of the cathode 114 of the light emitting module 11 away from the light emitting module, and the second substrate serves as an encapsulation layer of the OLED display device.
In the embodiment of the present invention, when the circularly polarized light is 10b in fig. 5, a protective layer is deposited on the TAC film on the upper side of the polarizing plate formed in 10b to protect the surface of the TAC film; wherein, the protective layer is made of acrylic polymer material and has a thickness range of about 2-10 um. The lower side of the second alignment film is coated with the pressure-sensitive adhesive with a certain thickness, and the release film for protecting the pressure-sensitive adhesive is compounded, so that the circular polarizing plate and the packaging glass can be tightly attached. When the circular polarization plate is bonded with the packaging layer, the release film can be directly torn off, and only a light finger pressure is applied without adopting methods such as solvent, heat and the like. The pressure-sensitive adhesive can be firmly adhered with the packaging layer; the pressure-sensitive adhesive is required to have a certain re-peelability, peel strength, and a certain permanent adhesion and initial adhesion.
In the embodiment of the present invention, the thickness of the polarizing layer 102 doped with the dichroic organic dye is in the range of 10 to 49 um.
Alternatively, the anode in fig. 1, 6 and 7 can be prepared by Chemical Vapor Deposition (CVD) on the substrate; forming a hole transport layer on the anode in a vapor deposition, coating or printing mode, coating a first alignment film on the hole transport layer and curing, coating a mixed sol of a high-molecular organic light-emitting chromophore and liquid crystal mixed according to a certain proportion on the cured first alignment film, aligning the sol and curing to form an organic light-emitting layer; depositing an electron transport layer on the luminescent layer by means of thermal evaporation and the like; and depositing a cathode on the electron transport layer by thermal evaporation, co-evaporation and the like. The hole transport layer can be made of NPB, TPD, TAPC, TFB, OTPD, QTPD, Poly-TPD, PVK, CUPB or PEDOT PSS, and has a thickness of 1-50 nm; the material TPBI, PBD, BCP, Bphen, TAZ, TmPyPB, ALq3 or TPBi of the electron transport layer; the cathode material can adopt Mg-Ag alloy and LiF-Al, and the thickness range of the cathode is 20nm-100 nm.
From the above, it can be seen that: in the embodiment of the invention, because the organic light-emitting layer comprises the high-molecular organic light-emitting chromospheres, the high-molecular organic light-emitting material generates first line polarized light, and the first line polarized light is converted into circular polarized light after passing through the spiral liquid crystal; the circularly polarized light is converted into second-line polarized light through the phase difference compensation film; the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, so that the second linearly polarized light can be completely transmitted. Therefore, the first-line polarized light generated by the organic light-emitting layer can be completely transmitted out, and the light-emitting efficiency of the light-emitting layer is further improved.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An active organic light emitting diode OLED display device is characterized by comprising a light emitting module and a circular polarizing plate arranged on the light emitting side of the light emitting module;
the organic light-emitting layer in the light-emitting module comprises a high-molecular organic light-emitting color cluster and spiral liquid crystal; the high molecular organic luminous color group is used for generating first-line polarized light; the spiral liquid crystal is used for converting the generated first linear polarized light into circular polarized light;
the circular polarizing plate comprises a phase difference compensation film and a polarizing layer; the phase difference compensation film is used for converting the circular polarized light into second-line polarized light; and the light transmission direction of the polarizing layer is consistent with the vibration direction of the second linearly polarized light, and the polarizing layer is used for transmitting the second linearly polarized light.
2. The OLED display device claimed in claim 1, wherein the light emitting module further includes a hole transport layer;
a first alignment film is arranged between the hole transport layer and the organic light-emitting layer;
the first alignment film is used for carrying out spiral alignment on the liquid crystal in the organic light-emitting layer.
3. The OLED display device claimed in claim 1, wherein the material of the phase difference compensation film is a liquid crystal material;
the thickness range of the phase difference compensation film is 1-10 um.
4. The OLED display device claimed in claim 3, wherein the polarizing layer includes a liquid crystal doped with a dichroic organic dye;
the dichroic organic dye doped liquid crystal is arranged in a nematic phase for generating linear polarization.
5. The OLED display device claimed in claim 3, wherein the phase difference compensation film of the liquid crystal material is coated on the second alignment film;
the second alignment film is used for arranging the liquid crystal serving as the phase difference compensation film in a preset direction.
6. The OLED display device claimed in claim 4, wherein the dichroic organic dye-doped liquid crystal is applied to the third alignment film;
the third alignment film is for aligning the dichroic organic dye-doped liquid crystal in a nematic phase.
7. The OLED display device of claim 5, wherein the second alignment film is disposed on a first surface of the substrate away from the light-emitting module, and a second surface of the substrate is used to form an anode of the light-emitting module.
8. The OLED display device of claim 6, wherein the third alignment film is disposed on a surface of the first substrate adjacent to the light emitting module, and the first substrate serves as an encapsulation layer of the OLED display device.
9. The OLED display device claimed in claim 8, further comprising a second substrate;
the second substrate is located on one surface, far away from the light-emitting module, of the cathode of the light-emitting module, and the second substrate is used as an encapsulation layer of the OLED display device.
10. The OLED display device of claim 1, wherein the polymeric organic luminescent chromophore includes any one of:
polyfluorene polymer and arylamine group polymer.
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| CN111192907A (en) * | 2020-01-08 | 2020-05-22 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and display device |
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| CN103441139B (en) * | 2013-08-14 | 2016-03-30 | 京东方科技集团股份有限公司 | A kind of display unit and display control method |
| CN107221551B (en) * | 2017-05-16 | 2019-11-19 | 上海天马有机发光显示技术有限公司 | A kind of organic light emitting display panel, its production method and display device |
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