CN111816681A - OLED display panel and OLED display device - Google Patents
OLED display panel and OLED display device Download PDFInfo
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- CN111816681A CN111816681A CN202010601298.7A CN202010601298A CN111816681A CN 111816681 A CN111816681 A CN 111816681A CN 202010601298 A CN202010601298 A CN 202010601298A CN 111816681 A CN111816681 A CN 111816681A
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- 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
- H10K59/40—OLEDs integrated with touch screens
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- Electroluminescent Light Sources (AREA)
Abstract
The invention provides an OLED display panel and an OLED display device. The OLED display panel comprises an array substrate, an OLED device layer, a thin film packaging layer, a touch layer and a color filter layer, wherein: the OLED device layer is arranged on the array substrate and comprises a plurality of light emitting units; the thin film packaging layer is arranged on the light emergent side of the OLED device layer; the color filter layer comprises a plurality of blocking units and a plurality of first openings arranged among the blocking units, wherein color filters are arranged in the first openings, and the color of the color filters which allow light to pass through is the same as the light emitting color of the corresponding light emitting units; the touch layer and the color filter layer are sequentially stacked in the thin film packaging layer. According to the OLED display panel provided by the invention, the touch layer and the color filter layer are arranged in the thin film packaging layer, so that the problems of over-high brightness attenuation and color cast under a large visual angle can be solved, the thickness of the display panel can be reduced, and flexible display is realized.
Description
Technical Field
The invention relates to the technical field of display, in particular to an OLED display panel and an OLED display device.
Background
An Organic Light Emitting Diode (OLED) display panel has advantages of self-luminescence, fast response speed, low voltage driving, high brightness, Light weight, and thin profile, compared with a liquid crystal display device, and thus becomes the mainstream of the display field.
When the OLED display panel displays, external ambient light may irradiate the OLED display panel and be reflected out of the OLED display panel by the metal electrode inside the OLED display panel, resulting in a decrease in contrast of the OLED display panel. Therefore, in the prior art, a circular polarizer is usually disposed on the light emitting surface of the OLED display panel, and a portion of the external ambient light cannot pass through the circular polarizer by using the circular polarizer, so as to reduce the amount of the external ambient light entering the OLED display panel and prevent the external ambient light entering the OLED display panel from being reflected outside the OLED display panel, thereby ensuring that the OLED display panel maintains a high contrast ratio.
However, the circular polarizer has a large thickness and a large rigidity, which results in a large thickness and a small possibility of bending the OLED display panel.
Disclosure of Invention
In view of the above defects, embodiments of the present invention provide an OLED display panel and an OLED display device, which can reduce the thickness of the OLED display panel, implement flexible display, reduce the influence of external ambient light on the contrast of the OLED display panel, and improve display brightness.
In order to achieve the above object, an aspect of the embodiments of the present invention provides an OLED display panel, including an array substrate, an OLED device layer, a thin film encapsulation layer, a touch layer, and a color filter layer, where:
the OLED device layer is arranged on the array substrate and comprises a plurality of light emitting units;
the thin film packaging layer is arranged on the light emergent side of the OLED device layer;
the color filter layer comprises a plurality of blocking units and a plurality of first openings arranged among the blocking units, wherein color filters are arranged in the first openings, and the color of the color filters allows the color of light passing through to be the same as the light emitting color of the corresponding light emitting units;
the touch layer and the color filter layer are sequentially stacked in the thin film packaging layer.
Further, the film packaging layer comprises a plurality of groups of inorganic film layers and organic film layers which are alternately arranged, and the touch layer and the color filter layer are arranged between any group of inorganic film layers and organic film layers.
Further, the touch layer and the color filter layer are arranged adjacently.
Furthermore, the color filter layer is located on one side of the touch layer away from the array substrate.
Furthermore, a protective layer is further arranged on one side, away from the array substrate, of the touch layer.
Further, the thickness of the protective layer is 50-500 nm.
Further, the touch layer comprises a touch electrode layer and a sensing electrode layer, and the materials of the touch electrode layer and the sensing electrode layer are independently selected from one of the following materials: indium tin oxide, indium zinc oxide, zinc gallium oxide, carbon nanotubes, metals, metal nanowires, silicon olefins, and graphene.
Furthermore, the first opening is trapezoidal in section along a direction perpendicular to the array substrate, and one side of the trapezoid away from the array substrate is a bottom of the trapezoid.
Furthermore, the OLED device layer further comprises a pixel limiting layer, the pixel limiting layer is provided with a plurality of second openings, the light emitting units are arranged in the second openings, the cross section of each second opening in the direction perpendicular to the array substrate is trapezoidal, and one side of each trapezoid, which is far away from the array substrate, is the lower bottom of the corresponding trapezoid.
Another aspect of embodiments of the present invention provides an OLED display device including the display panel described in the first aspect.
The OLED display panel and the OLED display device provided by the embodiment of the invention comprise an array substrate, an OLED device layer, a thin film packaging layer, a touch layer and a color filter layer, wherein the color filter layer comprises blocking units and color filters arranged between the blocking units, as the color of light allowed to pass through by the color filters is consistent with the light emitting color of the light emitting units, part of external environment light is absorbed by the blocking units when entering the OLED display panel, the rest part of the external environment light is filtered by the color filters to remove most of light, only the rest part of the light with single color can pass through, and when the part of the light entering the OLED display panel is reflected by the inside of the display panel, part of light intensity is lost, when the light is emitted by the color filter layer again, the reflected light is absorbed again by the blocking units and filtered again by the color filters, so that the intensity of the emergent, the contrast of the OLED display panel and the OLED display device is ensured, so that a circular polarizer is not required to be arranged in the display panel, and the problems that the traditional OLED display panel uses the circular polarizer, the thickness of the OLED display panel is large, the OLED display panel is not easy to bend, and flexible display is difficult to realize are solved.
In addition, according to the OLED display panel and the OLED display device provided by the embodiment of the invention, the touch layer and the color filter layer are sequentially stacked in the thin film packaging layer, so that on one hand, the distance between the color filter layer and the OLED device layer can be reduced, and the problems of over-fast brightness attenuation and color cast under a large viewing angle are solved; on the other hand, the color filter layer can realize the same functions as the organic film layer in the film packaging layer, namely the functions of buffering stress, flattening, covering particles and the like, so that the thickness of the film packaging layer can be properly reduced, and the overall thickness of the OLED display panel and the display device is reduced; in a third aspect, the touch layer is arranged inside the thin film packaging layer, so that the thin film packaging layer can protect the touch layer, and the touch quality of the touch layer and the OLED display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conventional OLED display panel;
fig. 2 is a schematic structural diagram of an OLED display panel according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of an OLED display panel according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of an OLED display panel according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of an OLED display panel according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of an OLED display panel according to an embodiment of the present invention.
Description of reference numerals:
10. an array substrate; 11. a substrate; 12. a back plate; 20. an OLED device layer; 21. a light emitting unit; 22. a pixel defining layer; 30. a thin film encapsulation layer; 31. an inorganic film layer; 32. an organic film layer; 40. a touch layer; 41. an induction electrode layer; 42. a touch electrode layer; 43. touch-control the insulating layer; 50. a color filter layer; 51. A color filter; 52. a blocking unit; 60. and a protective layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 embodiments described below and the features of the embodiments can be combined with each other without conflict.
At the present stage, in order to solve the problem of contrast reduction caused by the fact that external ambient light enters the OLED display panel and is then reflected by metal electrodes and the like in the OLED display panel, a circular polarizer is attached to a light-emitting surface of the OLED display panel to prevent the external ambient light from entering the OLED display panel and prevent the external ambient light entering the OLED display panel from being reflected outside the OLED display panel.
However, the thickness of the circular polarizer is large, generally in millimeter level, so that the thickness of the whole OLED display panel is also large, the thinning and lightening are not easy to realize, and the OLED display panel is also difficult to bend and realize flexible display. Moreover, research has shown that only about 40% of light emitted by the OLED display panel can be emitted when passing through the circular polarizer, and most of the light is lost, thereby affecting the display brightness of the OLED display panel.
In view of the above problems, the OLED display panel structure shown in fig. 1 is generally adopted in the prior art, and as shown in fig. 1, the OLED display panel includes an array substrate 10, an OLED device layer 20, a thin film encapsulation layer 30, a touch layer 40, and a color filter layer 50, which are sequentially stacked, wherein the touch layer 40 and the color filter layer 50 are disposed on the thin film encapsulation layer 30, and the OLED display panel structure has a large distance between the color filter layer 50 and the OLED device layer 20 due to the fact that the thin film encapsulation layer 30 and the touch layer 40 are located between the color filter layer 50 and the OLED device layer 20, so that the luminance attenuation is fast and the color shift is caused at a large viewing angle, and the display effect is affected.
In view of this, an embodiment of the present invention provides an OLED display panel, including an array substrate, an OLED device layer, a thin film encapsulation layer, a touch layer, and a color filter layer, where the color filter layer includes blocking units and color filters disposed between the blocking units, and since the color filter allows the color of the transmitted light to be consistent with the color of the light emitted by the light emitting unit, when the external ambient light enters the OLED display panel, part of the light is absorbed by the blocking units, the rest of the light is filtered by the color filters, only a small part of the light with a single color can pass through the light, and when the light enters the OLED display panel, part of the light intensity is lost when the light is reflected by the display panel, and when the light exits through the color filter layer again, the reflected light is absorbed again by the blocking units and filtered again by the color filters, so as to further reduce the intensity of the exiting reflected light, and ensure the contrast of, therefore, a circular polarizer is not required to be arranged in the display panel, and the problems that the traditional OLED display panel uses the circular polarizer, so that the OLED display panel is large in thickness, difficult to bend and difficult to realize flexible display are solved.
In addition, according to the OLED display panel provided by the embodiment of the invention, the touch layer and the color filter layer are sequentially stacked and arranged in the thin film packaging layer, so that on one hand, the distance between the color filter layer and the OLED device layer can be reduced, and the problems of too fast brightness attenuation and color cast under a large viewing angle are solved; on the other hand, the color filter layer can realize the same functions as the organic film layer in the film packaging layer, namely the functions of buffering stress, flattening, covering particles and the like, so that the thickness of the film packaging layer can be properly reduced, and the overall thickness of the OLED display panel and the display device is reduced; in a third aspect, the touch layer is arranged inside the thin film packaging layer, so that the thin film packaging layer can protect the touch layer, and the touch quality of the touch layer and the OLED display panel is improved.
Fig. 2 is a schematic structural diagram of an OLED display panel according to an embodiment of the present invention, and as shown in fig. 2, the OLED display panel according to the embodiment of the present invention includes an array substrate 10, an OLED device layer 20, a thin film encapsulation layer 30, a touch layer 40, and a color filter layer 50, where:
the OLED device layer 20 is arranged on the array substrate 10, and the OLED device layer 20 comprises a plurality of light emitting units 21 for emitting light rays with different colors;
the thin film encapsulation layer 30 is arranged on the light-emitting side of the OLED device layer 20;
the color filter layer 50 includes a plurality of blocking units 52 and a plurality of first openings disposed between the blocking units 52, wherein a color filter 51 is disposed in the plurality of first openings, and the color filter 51 allows light to pass through the same color as the corresponding light emitting unit;
the color filter layer 50 and the touch layer 40 are sequentially stacked in the film packaging layer 30.
According to the OLED display panel provided by the embodiment of the invention, the touch layer 40 and the color filter layer 50 are sequentially stacked in the film packaging layer 30, so that on one hand, the distance between the color filter layer 50 and the OLED device layer 20 can be reduced, and the problems of too fast brightness attenuation and color cast under a large viewing angle are solved; on the other hand, the color filter layer 50 can achieve the same functions as the organic film layer in the thin film encapsulation layer 30, namely, the functions of buffering stress, flattening, covering particles and the like, so that the thickness of the thin film encapsulation layer 30 can be properly reduced, and the overall thickness of the OLED display panel and the display device can be reduced; in a third aspect, the touch layer 40 is disposed inside the thin film encapsulation layer 30, so that the thin film encapsulation layer 30 can protect the touch layer 40, and the problem of sensitivity reduction caused by erosion of water and oxygen to the touch layer 40 due to the fact that the touch layer 40 is disposed on the side, away from the OLED device layer 20, of the thin film encapsulation layer 30 in the prior art is solved, so that the touch quality of the touch layer 40 and the OLED display panel is improved.
Specifically, the array substrate 10 may include a substrate 11, and a back plate 12 and a protection component thereof, which are formed on the substrate 11 and are used for driving the light emitting unit 21 to emit light. In the present embodiment, the material of the substrate 11 is not particularly limited, and may be a flexible organic polymer material such as polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, polyetherimide, polyethersulfone, or polyimide, or a flexible metal material such as stainless steel. The back plate 12 may be, for example, an LTPS back plate, an Oxide back plate, or the like. The material of the protective member may be polyimide, polyethylene terephthalate, polyurethane, polycarbonate, etc., and the protective member may be bonded to the substrate 11 by a pressure sensitive adhesive or an optical adhesive.
The OLED device layer 20 includes a plurality of light emitting cells 21 for emitting different color light. The light emitting unit 21 may specifically include an anode, a cathode, and a light emitting layer disposed between the anode and the cathode. The luminescent layer can be an organic luminescent layer or a quantum dot luminescent layer, or a combination of the organic luminescent layer and the quantum dot luminescent layer. Furthermore, at least one of a hole injection layer, a hole transport layer and an electron blocking layer can be arranged between the anode and the luminescent layer, and at least one of an electron injection layer, an electron transport layer and a hole blocking layer can be arranged between the cathode and the luminescent layer.
The number of the light emitting units 21 and the respective light emitting colors of the light emitting units 21 are not particularly limited in the embodiments of the present invention, and for example, the OLED display panel may be an RGB color display, and the OLED device layer 20 may include three light emitting units 21, i.e., a red light emitting unit 21, a green light emitting unit 21, and a blue light emitting unit 21. Alternatively, the OLED device layer 20 includes four kinds of light emitting cells 21, respectively, a red light emitting cell 21, a green light emitting cell 21, a blue light emitting cell 21, and a white light emitting cell 21.
The thin film encapsulation layer 30 serves to block oxygen and moisture in the environment from entering into the OLED display panel. The thin film encapsulation layer 30 may specifically include a plurality of sets of inorganic film layers 31 and organic film layers 32 alternately disposed, that is, disposed in a manner of inorganic film layers 31/organic film layers 32/inorganic film layers 31/organic film layers 32 … …. Among them, the inorganic film layer 31 may be formed of a transparent ceramic material such as SiNx, SiOx, SiOxNy, etc., and/or may be formed of a transparent metal oxide material such as Al2O3, TiO2, MgO, CrO, etc. The organic film layer 32 may be formed of an organic polymer material such as polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene, polyacrylate, and the like. The formation method of the thin film encapsulation layer includes, but is not limited to, conventional technologies such as inkjet printing (IJP), Plasma Enhanced Chemical Vapor Deposition (PECVD), etc., and is not limited herein. The inorganic film layer can be made of materials such as but not limited to silicon oxide, silicon nitride and the like, and the thickness of the inorganic film layer can be 100-2000 nm; the organic film layer can be made of materials such as polymethyl acrylate, epoxy resin and the like, and the thickness of the organic film layer can be 1000-12000 nm.
In an embodiment of the invention, the touch layer 40 and the color filter layer 50 are disposed between any set of the inorganic film layer 31 and the organic film layer 32, that is, the touch layer 40 and the color filter layer 50 may be disposed between the same set of the inorganic film layer 31 and the organic film layer 32, or disposed between different sets of the inorganic film layer 31 and the organic film layer 32.
In an embodiment of the invention, the touch layer 40 and the color filter layer 50 are disposed adjacently, that is, the touch layer 40 and the color filter layer 50 are disposed between the same set of inorganic film layer 31 and organic film layer 32. By arranging the touch layer 40 and the color filter layer 50 between the same group of inorganic film layers 31 and organic film layers 32, the preparation process of each film layer can be continuously carried out without frequently replacing the preparation process of each film layer in the process of manufacturing the film packaging layer, thereby simplifying the manufacturing process of the OLED display panel.
The relative positions of the touch layer 40 and the color filter layer 50 can be reasonably selected according to actual needs, for example, in one embodiment, as shown in fig. 2, the color filter layer 50 can be disposed on the side of the touch layer 40 away from the array substrate 10, and in another embodiment, as shown in fig. 3, the touch layer 40 can be disposed on the side of the color filter layer 50 away from the array substrate 10. When the embodiment shown in fig. 3 is adopted to dispose the touch layer 40 on the side of the color filter layer 50 away from the array substrate 10, the reflectivity is higher because the touch layer 40 is located above the blocking unit 52 on the light-emitting side, and compared with the embodiment shown in fig. 3, the embodiment shown in fig. 2 is adopted to dispose the color filter layer 50 on the side of the touch layer 40 away from the array substrate 10, and the reflectivity can be reduced by using the blocking effect of the blocking unit 52 on the touch layer, so as to improve the contrast of the OLED display panel.
The color filter layer may be prepared by a conventional photolithography process and is not specifically described herein.
As shown in fig. 4 and fig. 5, in an embodiment of the invention, a protection layer 60 is further disposed on a side of the touch layer 40 away from the array substrate 10. The protective layer 60 can prevent the touch layer from being scratched in the manufacturing process, and improve the stability of the touch screen structure and performance. It is understood that the protective layer 60 is preferably capable of completely covering the touch layer for effective protection.
The material of the protective layer 60 may be, for example, acrylic resin or other organic high molecular polymer material, and is not particularly limited herein. The thickness of the protective layer 60 may specifically be controlled to be several tens to several hundreds of nanometers, such as 50-500nm, specifically 100nm, 200nm, 300nm, 400 nm.
In addition, in the preparation process of the OLED display panel, the protective layer 60 is arranged on the surface of the touch layer 40, so that the touch layer and an adjacent functional layer (such as an encapsulation layer) are not required to be bonded by using an OCA optical adhesive in a traditional process, and the problem of thickness increase (the thickness of the OCA adhesive is usually about 50 μm) caused by the fact that the traditional touch layer needs to be bonded by using the OCA adhesive is avoided, so that the thickness of the OLED display panel is further reduced, and the thinning and flexible display of the OLED display panel are facilitated. And the OCA glue is not needed to be attached, so that the problem of film layer separation caused by the reduced adhesiveness of the OCA glue at high temperature is avoided, and the reliability of the touch layer and the OLED display panel is improved.
In the embodiment of the present invention, the touch layer includes a touch electrode layer 42, a sensing electrode layer 41, and a touch insulating layer 43 located between the touch electrode layer 42 and the sensing electrode layer 41, and the touch electrode layer 42 and the sensing electrode layer 41 may be made of materials commonly used in current touch screen electrodes, such as Indium Tin Oxide (ITO), Indium-Zinc Oxide (IZO), Zinc gallium Oxide (GZO), Carbon Nanotube film (Carbon Nanotube-based films), metal (such as metal films of Ag, Au, Zn, and the like), metal nanowire (such as silver nanowire), silicon alkene (silicon), Graphene (Graphene), and other conductive materials, but not limited thereto. In addition, the materials of the touch electrode layer and the sensing electrode layer can be the same or different. The touch layer may be formed by sputtering, PECVD, photolithography, dry etching, etc., which are not described in detail herein.
As a preferred embodiment of this embodiment, at least one of the touch electrode layer 42 and the sensing electrode layer 41 is made of graphene or nano silver wire. For example, the touch electrode layer 42 and the sensing electrode layer 41 are both obtained by patterning graphene, or the touch electrode layer 42 and the sensing electrode layer 41 are both obtained by patterning nano silver wires, or one of the touch electrode layer 42 and the sensing electrode layer 41 is made of graphene, and the other is made of nano silver wires.
Since graphene itself has excellent characteristics such as high light transmittance, high conductivity, and good bending resistance, when graphene is used as a material of the touch electrode layer or the sensing electrode layer, the touch electrode layer or the sensing electrode layer may correspond to the position of the color filter 51, that is, an orthographic projection of the touch electrode layer or the sensing electrode layer on the array substrate 10 covers a projection of the color filter 51 on the array substrate 10. Compared with other electrode materials such as ITO (indium tin oxide) and the like, the graphene is adopted as the electrode material, so that the effects of increasing light transmittance and reducing light reflection can be achieved, namely the graphene layer also plays a role of an antireflection film, and the light-emitting rate is further improved. In the preferred embodiment of the present embodiment, the touch electrode layer 42 and the sensing electrode layer 41 are made of graphene, so as to further increase the light transmittance and reduce the light reflection.
The nano silver wire has excellent flexibility except conductivity and light transmittance which are not lost in ITO and other traditional electrode materials, and has outstanding advantages in flexible display panels.
In this embodiment, if graphene is used as an electrode material, the touch electrode layer 42 or the sensing electrode layer 41 can be obtained by processing through a method of depositing at a low temperature and then patterning. If the nano silver wire is used as the electrode material, the nano silver wire ink material may be coated first and then patterned, for example, by using a laser lithography technique, to obtain the touch electrode layer 42 or the sensing electrode layer 41.
Fig. 6 is a schematic structural diagram of an OLED display panel according to an embodiment of the invention. The blocking unit 52 is used for absorbing the light emitted from the light emitting unit 20 and preventing the light emitted from the light emitting unit 20 from traveling to the adjacent light emitting unit 20, thereby reducing or preventing color mixing and improving the display quality. Considering that the light emitted by the light emitting unit 20 is not absolutely perpendicular to the array substrate 10, as shown in fig. 6, the first opening of the color filter layer 50 may have a trapezoidal cross section along a direction perpendicular to the array substrate 10, and one side of the trapezoid away from the array substrate 10 is a bottom of the trapezoid. That is, the cross section of the first opening is an inverted trapezoid, which is advantageous for emitting more light emitted from the light emitting unit 20, especially for emitting light along the side wall of the first opening, thereby further improving the display brightness.
Optionally, a first reflective layer may be further disposed on the sidewall of the first opening, and the first reflective layer is configured to reflect light emitted onto the sidewall of the first opening to the outside of the OLED display panel, so as to further improve display brightness. Specifically, the first reflective layer may be made of a material capable of reflecting light, and may be made of Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, or an alloy thereof. In actual processing, the first reflective layer can be obtained by depositing the one or more metals on the surface of the first opening by magnetron sputtering deposition and then performing patterning treatment.
Referring again to fig. 6, the OLED device layer 20 may further include a pixel defining layer 22(PDL), the pixel defining layer 22 being provided with a plurality of second openings, the light emitting units 20 being disposed within the second openings; the second opening is trapezoidal in cross section along a direction perpendicular to the array substrate 10, and one side of the trapezoid away from the array substrate 10 is a lower bottom of the trapezoid. The second opening formed by the pixel defining layer 22 has an inverted trapezoid cross section, which enables more light emitted from the light emitting unit 21 to be emitted, thereby further improving the display brightness.
In this embodiment, the pixel defining layer 22 may be made of an organic insulating material, especially a black organic insulating material, or a black dye or a black pigment is doped in the organic insulating material, so as to sufficiently absorb the external ambient light entering the OLED display panel and prevent the light emitted by the adjacent light emitting units 21 from mixing. The organic insulating material may be, for example, at least one of polystyrene, polymethylmethacrylate, polyacrylonitrile, polyamide, polyimide, polyarylether, heterocyclic polymer, parylene, epoxy, benzocyclobutene, siloxane-based resin, and silane-based resin. Examples of the black dye or black pigment include carbon black, chromium oxide, molybdenum oxide, iron oxide, titanium black, phenylene black, aniline black, cyanine black, nigrosine acid black, and black resin.
Optionally, a second reflective layer may be further disposed on the sidewall of the second opening. The second reflective layer serves to reflect light emitted from the light emitting unit 21 onto the sidewalls of the second opening to the outside of the OLED display panel without being absorbed by the pixel defining layer 22, further improving display luminance. Specifically, the second reflective layer may be made of a metal material, such as Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, or an alloy thereof.
It will be appreciated that the second reflective layer 23 is preferably insulated from the anode, the second reflective layer 23 and the cathode to avoid affecting the light emitting effect of the light emitting unit 21.
Of course, in the OLED display panel, the first opening and the second opening may be both provided as an inverted trapezoid opening as shown in fig. 6, or only the first opening or the second opening may be provided as an inverted trapezoid, which is not limited herein.
The embodiment of the invention also provides an OLED display device which comprises the OLED display panel provided by any one of the above embodiments of the invention. The OLED display device may be a display device with a touch display function, such as a mobile phone, a computer, and an intelligent wearable device, which is not limited in the embodiments of the present invention.
According to the OLED display panel provided by the embodiment of the invention, the touch layer 40 and the color filter layer 50 are sequentially stacked in the film packaging layer 30, so that on one hand, the distance between the color filter layer 50 and the OLED device layer 20 can be reduced, and the problems of too fast brightness attenuation and color cast under a large viewing angle are solved; on the other hand, the color filter layer 50 can achieve the same functions as the organic film layer in the thin film encapsulation layer 30, namely, the functions of buffering stress, flattening, covering particles and the like, so that the thickness of the thin film encapsulation layer 30 can be properly reduced, and the overall thickness of the OLED display panel and the display device can be reduced; in a third aspect, the touch layer 40 is disposed inside the thin film encapsulation layer 30, so that the thin film encapsulation layer 30 can protect the touch layer 40, and the problem of sensitivity reduction caused by erosion of water and oxygen to the touch layer 40 due to the fact that the touch layer 40 is disposed on the side, away from the OLED device layer 20, of the thin film encapsulation layer 30 in the prior art is solved, so that the touch quality of the touch layer 40 and the OLED display panel is improved.
It should be noted that, in the description of the embodiments of the present invention, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated.
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Also, different features that are present in different embodiments may be combined in a first combination to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the drawings, the specification, and the claims.
Claims (10)
1. The OLED display panel is characterized by comprising an array substrate, an OLED device layer, a thin film packaging layer, a touch layer and a color filter layer, wherein:
the OLED device layer is arranged on the array substrate and comprises a plurality of light emitting units;
the thin film packaging layer is arranged on the light emergent side of the OLED device layer;
the color filter layer comprises a plurality of blocking units and a plurality of first openings arranged among the blocking units, wherein color filters are arranged in the first openings, and the color of the color filters allows the color of light passing through to be the same as the light emitting color of the corresponding light emitting units;
the touch layer and the color filter layer are sequentially stacked in the thin film packaging layer.
2. The OLED display panel of claim 1, wherein the thin film encapsulation layer comprises a plurality of sets of inorganic film layers and organic film layers alternately arranged, and the touch layer and the color filter layer are arranged between any set of inorganic film layers and organic film layers.
3. The OLED display panel of claim 2, wherein the touch layer and the color filter layer are disposed adjacent to each other.
4. The OLED display panel of claim 3, wherein the color filter layer is located on a side of the touch layer away from the array substrate.
5. The OLED display panel of claim 1, wherein a side of the touch layer away from the array substrate is further provided with a protective layer.
6. The OLED display panel of claim 5, wherein the protective layer has a thickness of 50-500 nm.
7. The OLED display panel of claim 1, wherein the touch layer comprises a touch electrode layer and a sensing electrode layer, and the touch electrode layer and the sensing electrode layer are made of materials independently selected from one of the following materials: indium tin oxide, indium zinc oxide, zinc gallium oxide, carbon nanotubes, metals, metal nanowires, silicon olefins, and graphene.
8. The display panel according to any one of claims 1 to 7, wherein a cross section of the first opening along a direction perpendicular to the array substrate is a trapezoid, and a side of the trapezoid away from the array substrate is a bottom of the trapezoid.
9. The display panel according to any one of claims 1 to 7, wherein the OLED device layer further comprises a pixel defining layer, the pixel defining layer is provided with a plurality of second openings, the light emitting units are disposed in the second openings, the second openings have a trapezoidal shape in cross section along a direction perpendicular to the array substrate, and one side of the trapezoidal shape away from the array substrate is a lower base of the trapezoidal shape.
10. An OLED display device, comprising the OLED display panel according to any one of claims 1 to 9.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433636A (en) * | 2020-12-01 | 2021-03-02 | 武汉华星光电半导体显示技术有限公司 | Touch display panel, touch display device and manufacturing method of touch display panel |
| CN112885885A (en) * | 2021-02-01 | 2021-06-01 | 武汉华星光电半导体显示技术有限公司 | Display panel, display device and manufacturing method of display panel |
| CN113130462A (en) * | 2021-04-13 | 2021-07-16 | 广州市鸿利显示电子有限公司 | Display module and preparation method thereof |
| CN113921583A (en) * | 2021-11-22 | 2022-01-11 | 合肥维信诺科技有限公司 | Display panel, preparation method of display panel and display device |
| WO2022095567A1 (en) * | 2020-11-09 | 2022-05-12 | 合肥维信诺科技有限公司 | Display panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207834302U (en) * | 2018-01-11 | 2018-09-07 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110323355A (en) * | 2019-04-25 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | A kind of OLED display panel and OLED display |
-
2020
- 2020-06-29 CN CN202010601298.7A patent/CN111816681B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207834302U (en) * | 2018-01-11 | 2018-09-07 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110323355A (en) * | 2019-04-25 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | A kind of OLED display panel and OLED display |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095567A1 (en) * | 2020-11-09 | 2022-05-12 | 合肥维信诺科技有限公司 | Display panel |
| CN112433636A (en) * | 2020-12-01 | 2021-03-02 | 武汉华星光电半导体显示技术有限公司 | Touch display panel, touch display device and manufacturing method of touch display panel |
| CN112885885A (en) * | 2021-02-01 | 2021-06-01 | 武汉华星光电半导体显示技术有限公司 | Display panel, display device and manufacturing method of display panel |
| CN113130462A (en) * | 2021-04-13 | 2021-07-16 | 广州市鸿利显示电子有限公司 | Display module and preparation method thereof |
| CN113130462B (en) * | 2021-04-13 | 2023-08-04 | 广州市鸿利显示电子有限公司 | Preparation method of display module and display module |
| CN113921583A (en) * | 2021-11-22 | 2022-01-11 | 合肥维信诺科技有限公司 | Display panel, preparation method of display panel and display device |
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