CN111048688B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111048688B CN111048688B CN201911158499.8A CN201911158499A CN111048688B CN 111048688 B CN111048688 B CN 111048688B CN 201911158499 A CN201911158499 A CN 201911158499A CN 111048688 B CN111048688 B CN 111048688B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
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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
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Abstract
The embodiment of the application provides a display panel and a display device comprising the same. The display area of the display panel surrounds the light-transmitting area of the display panel, and the display panel comprises an organic light-emitting layer, an encapsulation layer and a flat layer which are arranged in a stacked mode. The packaging layer comprises a hollow part, and the hollow part is arranged in the light transmitting area; the flat layer is arranged on the packaging layer and fills the hollow part, and the number of the film layers included by the packaging layer is larger than that of the film layers included by the flat layer. Because the number of the film layers at the position of the light-transmitting area is less, the refraction times and scattering of light passing through the light-transmitting area are reduced, and the light transmittance at the position of the light-transmitting area is improved.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the field of display, in particular to a display panel and a display device.
[ background of the invention ]
Organic light emitting displays have advantages of self-luminescence, low power consumption, high brightness, and the like, and are increasingly widely used in various electronic devices including display functions. At present, high-screen-ratio display devices are increasingly favored by consumers, and among them, under-screen optical devices organic light emitting display devices are the focus of research.
The organic light-emitting display device of the optical device under the screen is characterized in that the optical device is arranged on one side of the display panel, which deviates from the light-emitting surface, and is positioned in the display area, and is influenced by various film layers in the display panel, and the light received or emitted by the optical device is less, so that the requirement of normal work cannot be met.
[ summary of the invention ]
In view of the above, embodiments of the present application provide a display panel and a display device.
In a first aspect, an embodiment of the present application provides a display panel, where a display area of the display panel surrounds a light-transmitting area of the display panel. The display panel comprises an organic light emitting layer, an encapsulation layer and a flat layer which are arranged in a stacked mode. The packaging layer comprises a hollow part, and the hollow part is arranged in the light transmitting area; the flat layer is arranged on the packaging layer and fills the hollow part. The packaging layer comprises a plurality of film layers, wherein the number of the film layers is larger than that of the film layers of the flat layer.
In a second aspect, embodiments of the present application further provide a display device, which includes the display panel provided in the first aspect. In addition, the display device further comprises an optical device, and the projection of the optical device on the plane of the display panel at least partially overlaps with the light-transmitting area.
In the display panel and the display device provided by the embodiment of the application, the number of the film layers at the light-transmitting area position of the display panel is small, the refraction times and scattering when light passes through the light-transmitting area are reduced, and the light transmittance at the light-transmitting area position is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a display panel according to an embodiment of the present application;
FIG. 2 is a schematic view of a display panel according to another embodiment of the present disclosure;
FIG. 3 is a schematic view of a display panel according to another embodiment of the present application;
FIG. 4 is a schematic view of a display panel according to still another embodiment of the present disclosure;
FIG. 5 is a cross-sectional view of a display panel according to an embodiment of the present application;
FIG. 6 is a cross-sectional view of a display panel according to another embodiment of the present application;
FIG. 7 is a cross-sectional view of a display panel according to still another embodiment of the present application;
FIG. 8 is a cross-sectional view of another display panel according to still another embodiment of the present application;
fig. 9 is a cross-sectional view of a display panel according to still another embodiment of the present application;
FIG. 10 is a cross-sectional view of another display panel according to yet another embodiment of the present application;
Fig. 11 is a cross-sectional view of a display device according to an embodiment of the present application.
[ detailed description ] A
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all 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 application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, third, etc. may be used to describe the display regions in the embodiments of the present application, the display regions should not be limited to these terms. These terms are used only to distinguish the display regions from each other. For example, the first display region may also be referred to as a second display region, and similarly, the second display region may also be referred to as a first display region without departing from the scope of the embodiments of the present application.
The applicant provides a solution to the problems of the prior art through intensive research.
An embodiment of the present application provides a display panel, please refer to fig. 1 to 4, where fig. 1 is a schematic view of a display panel provided in an embodiment of the present application, fig. 2 is a schematic view of a display panel provided in another embodiment of the present application, fig. 3 is a schematic view of a display panel provided in yet another embodiment of the present application, and fig. 4 is a schematic view of a display panel provided in yet another embodiment of the present application. The display panel 001 provided by the present application includes a display region 01 and a light transmission region 02, and the display region 01 of the display panel 001 surrounds the light transmission region 02 of the display panel 001. The display area 01 displays normal images, and the transparent area 02 allows light outside the display panel 001 to pass through the area, but in the embodiment of the present application, the transparent area 02 may also be used for displaying. The display and the light transmission in the light-transmitting region 02 may be performed in a time-sharing manner or simultaneously. Surround display area 01 and can be used for showing and can be used for the printing opacity district 02 of printing opacity, just be with display panel 001 at least partial printing opacity position and the display position carried out the complex, need not to set up solitary printing opacity position at display panel 001, promote the screen of display panel 001 and account for the ratio.
The display area 01 surrounds the light-transmitting area 02 and includes at least two cases, one is that the display area 01 surrounds the whole light-transmitting area 02, as shown in fig. 1, the whole light-transmitting area 02 is surrounded by the display area 01; second, the display area 01 surrounds a part of the light-transmitting area 02, as shown in fig. 2, a part of the light-transmitting area 02 is adjacent to the display area 01, and another part of the light-transmitting area 02 is apart from the display area 01, specifically, as shown in fig. 2, an upper part of the light-transmitting area 02 is not surrounded by the display area 01. It should be noted that fig. 1 and fig. 2 only show a portion of the display area 01 surrounding the transparent area 02, and other situations that may occur to those skilled in the art are also within the scope of the present application, that is, those skilled in the art may design the specific form of the display area 01 surrounding the transparent area 02 according to the needs.
The display panel 001 provided in the embodiment of the present application may further include a non-display region, where the non-display region may be used to set a circuit structure and related signal lines. Referring to fig. 3 and 4, the non-display area 03 surrounds the display area 01. The non-display area 03 surrounding the display area 01 includes at least two cases, one of which is that the non-display area 03 surrounds the entire display area 01, as shown in fig. 3, the entire display area 01 is surrounded by the non-display area 03; second, the non-display area 03 surrounds a part of the display area 01, and as shown in fig. 4, the upper part of the display area 01 is not surrounded by the non-display area 03. It should be noted that fig. 3 and fig. 4 only show a case where the non-display area 03 surrounds the display area 01, and other cases that may occur to those skilled in the art are also within the protection scope of the present application; in addition, a person skilled in the art can also determine whether to set the non-display area 03 as needed.
Further, the display panel 001 provided in the embodiment of the present application includes an organic light emitting layer, an encapsulation layer, and a planarization layer, which are stacked; the packaging layer comprises a hollow part, the hollow part is arranged in the light transmitting area, and the flat layer is arranged on the packaging layer and fills the hollow part. The packaging layer comprises a greater number of film layers than the flat layer. Referring to fig. 5, fig. 5 is a cross-sectional view of a display panel according to an embodiment of the present disclosure, in particular, fig. 5 is a cross-sectional view of a display panel 001 along a path a-a', as shown in fig. 5, the display panel 001 includes an organic light emitting layer 10, an encapsulation layer 20, and a planarization layer 30 stacked from bottom to top, and the organic light emitting layer 10, the encapsulation layer 20, and the planarization layer 30 are disposed on a substrate 40. It should be noted that the substrate 40 may include a substrate and a switch array thin film layer, and since the organic light emitting layer 10, the encapsulation layer 20 and the planarization layer 30 are disposed above the substrate and the switch array thin film layer as a known technology, only the substrate 40 is illustrated to avoid obscuring the invention of the present application.
Referring to fig. 5, a hollow portion 200 is disposed at a position of the package layer 20 corresponding to the light-transmitting area 02, and specifically, at least a film layer with a certain thickness is cut at a position of the package layer 20 corresponding to the light-transmitting area 02 to form the hollow portion 200, as shown in fig. 5, the package layer 20 at the light-transmitting area 02 can be completely cut to form the hollow portion 200. The encapsulation layer 20 is used to encapsulate and protect the organic light emitting layer 10, and protect the organic light emitting layer 10 from moisture, gas, and the like from the outside. Typically, the encapsulation layer 20 is a multi-film structure, such as a structure including a first inorganic material layer 21, an organic material layer 23, and a second inorganic material layer 22, which are stacked. In one embodiment of the present application, the first inorganic material layer 21 may include a SiON layer 211 and a SiNx layer 212, which may have thicknesses of 0.9 μm and 0.1 μm, respectively; the second inorganic material layer 22 may include two SiNx layers 221 and 222 with different thicknesses, and the thicknesses of the two layers are respectively 0.4 μm and 0.6 μm; the intermediate organic material layer 23 is typically prepared by a spray coating process after the first inorganic material layer 21 is formed, and the thickness is typically about 8 μm.
Referring to fig. 5, a planarization layer 30 is formed on the package layer 20, and the planarization layer 30 fills the hollow portion 200 of the package layer 20. In one embodiment of the present application, the planarization layer 30 may only fill the hollow portion 200, and the planarization layer 30 is not disposed at other positions; in another embodiment of the present application, the planarization layer 30 may also cover the encapsulation layer 20 and fill the hollow portion 200 of the encapsulation layer 20. The number of the film layers of the flat layer 30 is less than that of the package layer 20, and it should be noted that the film layers made of different materials are different film layers, the film layers made by different processes can be different film layers, and the film layers made at different times can be different film layers.
It can be seen that, in the embodiment of the present application, the package layer 20 formed by more films at the position of the light-transmitting area 02 is replaced by the flat layer 30 formed by less films, so that the number of films passing through when light penetrates through the light-transmitting area 02 is reduced, the refraction times of light are also reduced, light scattering is avoided, and the transmittance of light in the light-transmitting area 02 is improved. The flat layer 30 is filled in the hollow-out portion 200 of the encapsulation layer 20 at the light transmission area 02, so that the organic light emitting layer 10 and the film layer covered by the organic light emitting layer 10 can be protected, the encapsulation performance of the light transmission area 02 can be ensured, and the organic light emitting layer and the film layer covered by the organic light emitting layer are prevented from cracking due to falling in the subsequent reliability test, transportation and use processes of the display panel 001.
Specifically, as shown in fig. 5, the planar layer 30 may include only one film layer, and when light passes through the transparent region 02, the light is not refracted inside the planar layer 30, so that the transmittance of the light in the transparent region 02 can be greatly improved. Preferably, the planarization layer 30 may be made of an inorganic material. The other insulating layers after the formation of the encapsulation layer 20 are mostly made of inorganic materials, so the formation step of the flat layer can be performed simultaneously with the formation step of one or more insulating layers, thereby simplifying the process flow, improving the process efficiency and reducing the production cost. Specifically, the inorganic material making up the planarization layer 30 may include SiO 2 Or SiN X The inorganic material of the planarization layer 30 includes SiO 2 Or SiN X Is made into a flat productThe main material of the flat layer 30 is SiO 2 Or SiN X The material of the flat layer 30 may include other doping materials, such as rare earth materials, in addition to the host material, and the light transmittance of the flat layer 30 may be improved by doping. It should be noted that, when the display panel 001 further includes a polarizer, the main material of the planarization layer 30 may be preferably SiO 2 ，SiO 2 Can effectively prevent iodine molecules in the polaroid from volatilizing and avoid white spots generated by the failure of the polaroid.
To further improve the light transmittance of the light-transmitting region, the light transmittance of the flat layer 30 is greater than that of the encapsulation layer 20.
In an embodiment of the present application, the display panel 001 may have a touch function, and reference may be made to fig. 6 to 8, where fig. 6 is a cross-sectional view of a display panel according to another embodiment of the present application, fig. 7 is a cross-sectional view of a display panel according to yet another embodiment of the present application, and fig. 8 is a cross-sectional view of another display panel according to yet another embodiment of the present application. As shown in fig. 6 to 8, the display panel 001 provided in an embodiment of the present invention further includes a touch layer 40, and the touch layer 40 is disposed on a side of the planarization layer 30 away from the encapsulation layer 20. That is, the touch layer 40 is disposed in the display panel 001, and is disposed on the organic light emitting layer 10, the encapsulation layer 20, and the planarization layer 30. It should be noted that, when the planarization layer 30 is only filled in the hollow portion 200, the planarization layer 30 is flush with the top of the surrounding packaging layer 20, and the touch layer 40 is disposed on the planarization layer 30 and the planarization layer 20, so that the conductive structures in the touch layer 40, such as the touch electrodes or the touch signal lines, have better reliability. It should be noted that, when the planarization layer 30 covers the encapsulation layer 20 and fills the hollow portion 200, the encapsulation layer can be planarized and the height difference between the hollow portion and the encapsulation layer can be filled, so that the conductive structure in the touch layer 40, such as the touch electrode or the touch signal line, has better reliability.
The touch control mode of the display panel 001 provided by the embodiment of the present application may be a self-contained mode or a mutual-contained mode. When the touch type of the display panel 001 is mutual capacitance, the touch layer 40 should include touch electrodes, and specific touch electrodes may include a touch driving electrode 43 and a touch sensing electrode 44, where a capacitance is formed between the touch driving electrode 43 and the touch sensing electrode 44; at this time, optionally, the touch driving electrode 43 and the touch sensing electrode 44 may be disposed in a same layer in an insulating manner; at this time, optionally, the touch driving electrode 43 and the touch sensing electrode 44 may also be disposed in different layers in an insulating manner, as shown in fig. 6, the touch driving electrode 43 and the touch sensing electrode 44 are disposed in different layers, and the insulating layer 45 is disposed in the middle. It should be noted that, in order to ensure the touch effect of the transparent area 02, the touch driving electrode 43 and the touch sensing electrode 44 may be disposed at corresponding positions of the transparent area 02.
When the touch type of the display panel 001 is self-contained, the touch layer 40 should include touch electrodes 41 and touch signal lines 42, wherein the touch electrodes 41 and the touch signal lines 42 may be disposed on different layers, as shown in fig. 7 and 8. Similarly, to ensure the touch effect of the transparent area 02, the touch electrode 41 may be disposed at a corresponding position of the transparent area 02. It should be noted that the corresponding touch signal lines 42 may be disposed in the transparent area 02, that is, the positional relationship between the touch signal lines 42 and the corresponding electrically connected touch electrodes 41 in the transparent area 02 is the same as the positional relationship between the touch signal lines 42 and the corresponding electrically connected touch electrodes 41 in the display area 01, that is, the touch layer 40 in the transparent area 02 does not need to be specially designed, and the process is simple. It should be noted that the corresponding touch signal line 42 may not be disposed in the light-transmitting area 02, and since the touch signal line 42 is usually made of metal, the touch signal line 42 may be disposed at a position avoiding the light-transmitting area 02 in order to further increase the light transmittance of the light-transmitting area 02. As shown in fig. 8, the touch signal line 42 corresponding to the touch electrode 41 in the transparent area 02 can be moved to the display area 01.
The touch electrode may be made of metal, or may be made of other conductive materials, such as metal oxide. When the touch electrode is made of metal, the touch electrode should be made of grid metal, and specifically, the metal portion of the grid metal may be disposed between pixels or at a position where each pixel does not transmit light in the display panel 001, so as to avoid affecting the light transmittance. Since the touch electrode at the light transmission area 02 is also made of latticed metal, the light transmittance of the light transmission area is not affected. As shown in fig. 6, the touch driving electrodes 43 and the touch sensing electrodes 44 may be made of a grid-shaped metal; as shown in fig. 7 to 8, the touch electrode 41 may be made of a mesh-like metal. It should be noted that the touch electrode in the transparent area 02 may also be specially designed, for example, the metal width of the grid metal in the transparent area 02 is reduced or the opening area of the grid metal is increased. Because the metal has better conductivity, the touch electrode made of metal has higher touch sensitivity, and meanwhile, because the touch electrode at the light-transmitting area 02 is made of latticed metal, the light transmittance of the light-transmitting area 02 can be prevented from being influenced.
When the touch electrode is made of other materials, the touch electrode may be optionally made of transparent metal oxide, such as ITO, so as to avoid affecting light transmittance. As shown in fig. 6, the touch driving electrodes 43 and the touch sensing electrodes 44 may be made of transparent metal oxide; as shown in fig. 7 to 8, the touch electrode 41 may be made of a transparent metal oxide. Since the transparency of the transparent metal oxide is good, any one of the touch structures, such as the touch driving electrode 43, the touch sensing electrode 44, or the touch electrode 41, is made of the transparent metal oxide. Therefore, the touch sensing area of the touch electrode can be increased, the touch sensitivity of the touch electrode is improved, and meanwhile, the light transmittance of the light-transmitting area 02 can be ensured due to the good light transmittance of the transparent metal oxide.
Since the light-transmitting region 02 can transmit light and display simultaneously, the light-emitting unit is inevitably disposed at the light-transmitting region 02, as shown in fig. 5 to 8, when the organic light-emitting layer 10 of the display panel 001 includes the light-emitting unit 11/12, the organic light-emitting layer 10 of the display region 01 includes the light-emitting unit 12, and the organic light-emitting layer 10 of the light-transmitting region 02 includes the light-emitting unit 11, since the hollow portion 200 is disposed on the encapsulation layer 20 at the light-transmitting region 02 and the flat layer 30 fills the hollow portion 200, the light transmittance of the light-transmitting region 02 can be effectively improved, and therefore, the light-emitting unit 11 of the light-transmitting region 02 can be designed to be the same as the light-emitting unit 12 of the display region 01, specifically, the light-emitting area is the same, so that the process can be simplified, and the lifetime of the light-emitting unit 11 in the light-transmitting region 02 can be ensured.
In addition, to further improve the light transmittance of the light-transmitting region 02, the light-emitting cells 11 of the light-transmitting region 02 may be designed differently from the light-emitting cells 12 of the display region 01. As shown in fig. 9 to 10, fig. 9 is a cross-sectional view of a display panel according to still another embodiment of the present application, and fig. 10 is a cross-sectional view of another display panel according to still another embodiment of the present application.
As shown in fig. 9, when the light-transmitting regions 02 are provided with the light-emitting cells 11, the area of the light-emitting cells 11 provided in the light-transmitting regions 02 may be equal to the area of the light-emitting cells 12 provided in the display region 01, but the density of the light-emitting cells 11 provided in the light-transmitting regions 02 is less than the density of the light-emitting cells 12 provided in the display region 01, i.e., the density of the light-emitting cells 11 in the light-transmitting regions 02 is smaller relative to the light-emitting cells 12 in the display region 01. Each of the light-emitting cells 11/12 in the organic light-emitting layer 10 includes a light-emitting portion and a light-shielding portion, and the light-shielding portion shields light, so reducing the density of the light-emitting cells 11 in the light-transmitting area 02 reduces the density of the light-shielding portions in the light-transmitting area 02, thereby increasing the light transmittance of the light-transmitting area 02. Meanwhile, the area of the light emitting unit 11 disposed in the transparent region 02 may be equal to the area of the light emitting unit 12 disposed in the display region 01, so that the lifetime of the light emitting unit 11 disposed in the transparent region 02 may be effectively ensured.
As shown in fig. 10, when the light-transmitting region 02 is provided with light-emitting units, the density of the light-emitting units 11 provided in the light-transmitting region 02 may be equal to the density of the light-emitting units 12 provided in the display region 01, but the area of the light-emitting units 11 provided in the light-transmitting region 02 is smaller than the area of the light-emitting units 12 provided in the display region 01, i.e., the area of the light-emitting units 11 in the light-transmitting region 02 is smaller relative to the light-emitting units 12 in the display region 01. Each of the light-emitting cells 11/12 in the organic light-emitting layer 10 includes a light-emitting portion and a light-shielding portion that shields light, so reducing the area of the light-emitting cells 11 in the light-transmitting region 02 reduces the area of the light-shielding portion in the light-transmitting region 02, thereby increasing the light transmittance of the light-transmitting region 02.
It should be noted that, reducing the density of the light emitting cells 11 in the light-transmitting region 02 and reducing the area of the light emitting cells 11 in the light-transmitting region 02 are both to change the light transmittance of the light-transmitting region 02. Those skilled in the art can adaptively change the density and area of the light emitting cells 11 in the light transmitting region 02 as needed, and simultaneously reduce the density and area of the light emitting cells 11 in the light transmitting region 02.
In an embodiment of the present application, there is also provided a display device, as shown in fig. 11, where fig. 11 is a cross-sectional view of the display device provided in an embodiment of the present application. The display device comprises the display panel 001 as provided in any of the above embodiments, and further comprises an optical device 002, wherein the projection of the optical device 002 onto the plane of the display panel 001 at least partially overlaps with the light-transmitting region 02, i.e. the optical device 002 is disposed corresponding to the light-transmitting region 02 of the display panel 001. The optical device 002 is used to obtain light from or emit light to the outside of the display device through the display panel 001, and the optical device 002 may specifically be a camera for obtaining light of an object from the outside of the display device to form an image, and the optical device 002 may also specifically be a camera and an illumination lamp, wherein the illumination lamp may emit light to the outside of the display device to illuminate the object, and the camera may obtain light of the light-emitting object to form an image. The optical device 002 may also be other electronic devices capable of emitting light or sensing light. Because optical device 002 corresponds the setting with light-transmitting zone 02, and the rete in light-transmitting zone 02 is less, consequently can reduce the refraction number of times and the scattering of the light that optical device 002 sent or optical device 002 acquireed, promote display device and acquire the performance of light or induced light through optical device 002.
Note that, in addition to the organic light emitting layer 10, the sealing layer 20, and the planarization layer 30, the display panel 001 may include a substrate, a switch array thin film layer, and other insulating layers. Specifically, the switch array thin film layer may be disposed between the substrate and the organic light emitting layer 10, and other insulating layers may be disposed between the active layer and the gate electrode, between the gate electrode and the source/drain electrodes, and the like of each switching element in the switch array thin film layer. To avoid obscuring the invention of the present application, the cross-sectional view of the display panel 001 in the embodiment of the present application does not show these specific structures, but only shows the substrate 40 that can encompass these specific structures.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A display panel, wherein a display region of the display panel surrounds a light-transmitting region of the display panel;
the display panel comprises an organic light emitting layer, an encapsulation layer and a flat layer which are arranged in a stacked mode, wherein the encapsulation layer comprises a hollow part, and the hollow part is arranged in the light transmitting area; the flat layer is arranged on the packaging layer and fills the hollow part;
The packaging layer comprises a greater number of film layers than the flat layer;
the organic light emitting layer comprises a light emitting unit, and the light emitting unit is arranged in the light transmitting area.
2. The display panel according to claim 1, wherein the encapsulation layer comprises a first inorganic material layer, an organic material layer, and a second inorganic material layer, which are stacked; the planarization layer is made of an inorganic material.
3. The display panel according to claim 2, wherein the inorganic material of which the planarization layer is made comprises SiO 2 。
4. The display panel of claim 1, wherein the light transmittance of the planarization layer is greater than the light transmittance of the encapsulation layer.
5. The display panel according to claim 1, wherein the display panel comprises a touch layer disposed on a side of the planarization layer away from the encapsulation layer.
6. The display panel according to claim 5, wherein the touch layer includes a touch electrode, and the touch electrode is made of a mesh-like metal.
7. The display panel according to claim 5, wherein the touch layer comprises a touch electrode made of a transparent metal oxide.
8. The display panel according to claim 1, wherein an area of the light emitting cells in the transmissive region is equal to an area of the light emitting cells in the display region, and a density of the light emitting cells in the transmissive region is lower than a density of the light emitting cells in the display region.
9. The display panel according to claim 1, wherein the organic light emitting layer includes light emitting cells, an area of the light emitting cells provided in the light transmissive region is smaller than an area of the light emitting cells provided in the display region, and a density of the light emitting cells provided in the light transmissive region is equal to a density of the light emitting cells provided in the display region.
10. A display device comprising a display panel as claimed in any one of claims 1 to 9, the display device further comprising optics, a projection of which onto a plane in which the display panel lies at least partially overlaps the light-transmissive region.
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| CN201911158499.8A CN111048688B (en) | 2019-11-22 | 2019-11-22 | Display panel and display device |
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| CN201911158499.8A CN111048688B (en) | 2019-11-22 | 2019-11-22 | Display panel and display device |
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| CN111048688B true CN111048688B (en) | 2022-07-29 |
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| CN112103320A (en) * | 2020-09-22 | 2020-12-18 | 维信诺科技股份有限公司 | Display panel and display device |
| CN115298829B (en) * | 2021-01-05 | 2023-12-08 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN113113454A (en) * | 2021-03-26 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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