CN113327969A - Display panel, display device and lighting device - Google Patents
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- CN113327969A CN113327969A CN202110620300.XA CN202110620300A CN113327969A CN 113327969 A CN113327969 A CN 113327969A CN 202110620300 A CN202110620300 A CN 202110620300A CN 113327969 A CN113327969 A CN 113327969A
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- 238000005538 encapsulation Methods 0.000 claims abstract description 35
- 238000004020 luminiscence type Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 54
- 238000005286 illumination Methods 0.000 claims description 15
- 239000012780 transparent material Substances 0.000 claims description 13
- 239000003086 colorant Substances 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 17
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000002310 reflectometry Methods 0.000 description 5
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- 229910052760 oxygen Inorganic materials 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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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
Abstract
The application provides a display panel, a display device and a lighting device, wherein the display panel comprises a plurality of light-emitting units which are arranged above a substrate at intervals; wherein each of the light-emitting units is a monochromatic light-emitting unit; an encapsulation layer over the light emitting unit; an auxiliary layer disposed above or below the encapsulation layer; the orthographic projection of the auxiliary layer on the substrate base plate at least covers a gap between the orthographic projections of any two adjacent light-emitting units on the substrate base plate, and the color of the auxiliary layer corresponding to the position between the two adjacent light-emitting units is the same as the light-emitting color of any one of the two adjacent light-emitting units. Through set up the auxiliary layer corresponding with the luminous colour of luminescence unit in substrate base plate top, shelter from adjacent two clearance between the luminescence unit realizes whole demonstration homogeneity, improves display effect and outward appearance effect under bright attitude and the dark attitude, realizes comprehensive molding graceful.
Description
Technical Field
The application relates to the technical field of illumination display, in particular to a display panel, a display device and an illumination device.
Background
Organic Light-Emitting Diode (OLED) devices are receiving wide attention due to their advantages of self-luminescence, low power consumption, lightness, thinness, flexibility, gorgeous color, high contrast, fast response speed, etc., and thus are becoming one of the key development directions of new-generation flat display devices and illumination devices, and receiving more and more attention. The lighting OLED and the like become the competition points of the next market, especially in huge vehicle-mounted, household, market and the like markets as the mobile phone market.
Because the resolution requirement of the illumination display panel for vehicle-mounted illumination display is far lower than that of a display screen used by equipment such as a mobile phone, a computer and the like, the illumination display panel is generally formed by combining a plurality of single-color light-emitting units with larger areas (the area of a single light-emitting unit is far larger than the pixel area of the display screen of the mobile phone), and the illumination display mode is partition display. Since the partition display is visible to the naked eye, there is an unequal degree of blank and jaggy between adjacent partitions. The display panel shown in fig. 1 includes a plurality of light emitting units 102, adjacent light emitting units are separated by a light emission defining layer 103, and a large gap between adjacent light emitting units causes a certain degree of blank and jaggy feeling, which affects appearance and display effect in a dark state and a light state.
Disclosure of Invention
In view of the above problems, the present application provides a display panel, a display device, and an illumination device, which solve the technical problem that in the prior art, an OLED illumination display panel affects the appearance and the display effect in a dark state and a bright state due to the divisional display.
In a first aspect, the present application provides a display panel comprising:
a substrate base plate;
a plurality of light emitting units arranged above the substrate base plate at intervals; each light-emitting unit comprises an anode layer, a light-emitting layer and a cathode layer which are sequentially stacked and arranged above the substrate, and each light-emitting unit is a monochromatic light-emitting unit;
an encapsulation layer over the light emitting unit;
an auxiliary layer disposed above or below the encapsulation layer; the orthographic projection of the auxiliary layer on the substrate base plate at least covers a gap between the orthographic projections of any two adjacent light-emitting units on the substrate base plate, and the color of the auxiliary layer corresponding to the position between the two adjacent light-emitting units is the same as the light-emitting color of any one of the two adjacent light-emitting units.
In some embodiments, in the display panel, the auxiliary layer is disposed below the encapsulation layer and between any two adjacent light emitting units.
In some embodiments, in the display panel, the auxiliary layer is disposed above the encapsulation layer;
the display panel also comprises a light-emitting definition layer which is positioned above the substrate base plate and is arranged between any two adjacent light-emitting units;
wherein an orthographic projection of the auxiliary layer on the substrate base plate at least covers an orthographic projection of the luminescence defining layer on the substrate base plate.
In some embodiments, in the above display panel, the display panel is a bottom emission type display panel.
In some embodiments, the display panel further includes: and the reflective back film is arranged above the packaging layer.
In some embodiments, in the display panel, a material of the auxiliary layer includes a light shielding material.
In some embodiments, in the above display panel, the material of the cathode layer includes a light shielding material;
the material of the anode layer comprises a transparent material.
In some embodiments, in the above display panel, the display panel is a top emission type display panel.
In some embodiments, the display panel further includes: and the transparent back film is arranged above the packaging layer.
In some embodiments, in the display panel, a material of the auxiliary layer includes a transparent material.
In some embodiments, in the above display panel, the material of the cathode layer includes a transparent material;
the material of the anode layer includes a light blocking material.
In some embodiments, in the above display panel, the light emitting colors of all the light emitting units in the display panel are the same.
In some embodiments, in the above display panel, the light emitting colors of all the light emitting units in the display panel include at least two.
In a second aspect, the present application provides a display device comprising the display panel according to any one of the first aspect.
In a third aspect, the present application provides a lighting device comprising a display panel as defined in any one of the first aspect.
By adopting the technical scheme, the following technical effects can be at least achieved:
the application provides a display panel, a display device and a lighting device, wherein the display panel comprises a substrate base plate; a plurality of light emitting units arranged above the substrate base plate at intervals; each light-emitting unit comprises an anode layer, a light-emitting layer and a cathode layer which are sequentially stacked and arranged above the substrate, and each light-emitting unit is a monochromatic light-emitting unit; an encapsulation layer over the light emitting unit; an auxiliary layer disposed above or below the encapsulation layer; the orthographic projection of the auxiliary layer on the substrate base plate at least covers a gap between the orthographic projections of any two adjacent light-emitting units on the substrate base plate, and the color of the auxiliary layer corresponding to the position between the two adjacent light-emitting units is the same as the light-emitting color of any one of the two adjacent light-emitting units. Through set up the auxiliary layer corresponding with the luminous colour of luminescence unit in substrate base plate top, shelter from adjacent two clearance between the luminescence unit realizes whole demonstration homogeneity, improves display effect and outward appearance effect under bright attitude and the dark attitude, realizes comprehensive molding graceful.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application. In the drawings:
FIG. 1 is a schematic top view of a display panel;
FIG. 2 is a schematic front plan view of a display panel according to an exemplary embodiment of the present application;
FIG. 3 is a schematic cross-sectional view taken along line A-A' of FIG. 2;
fig. 4 is a schematic cross-sectional structure diagram of another display panel according to an exemplary embodiment of the present application;
in the drawings, wherein like parts are designated with like reference numerals, the drawings are not necessarily to scale;
the reference signs are:
102-a light emitting unit; 103-a luminescence defining layer; 201-substrate base plate; 202-a light emitting unit; 2021-anode layer; 2022-a light emitting layer; 2023-a cathode layer; 203-an auxiliary layer; 204-an encapsulation layer; 205-a backing film; 301-substrate base plate; 302-a light emitting unit; 3021-anode layer; 3022-a light-emitting layer; 3023-a cathode layer; 303-a luminescence defining layer; 304-an encapsulation layer; 305-an auxiliary layer; 306-the back membrane.
Detailed Description
The following detailed description will be provided with reference to the accompanying drawings and embodiments, so that how to apply the technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments and various features in the embodiments of the present application can be combined with each other without conflict, and the formed technical solutions are all within the scope of protection of the present application. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.
It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.
It will be understood that spatial relationship terms, such as "above", "below", "beneath", and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements or features described as "below" other elements would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
Embodiments of the present application are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the application. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments of the present application should not be limited to the particular shapes of regions illustrated herein, but are to include deviations in shapes that result, for example, from manufacturing.
In order to provide a thorough understanding of the present application, detailed structures and steps will be provided in the following description in order to explain the technical solutions proposed in the present application. The following detailed description of the preferred embodiments of the present application, however, will suggest that the present application may have other embodiments in addition to these detailed descriptions.
The embodiment of the application provides a display panel. Referring to fig. 2 and 3, the display panel includes a substrate base 201, a light emitting unit 202, an auxiliary layer 203, and an encapsulation layer 204.
Note that, in order to clearly show the positional relationship between the light-emitting unit 202 and the auxiliary layer 203 in fig. 2, the substrate board 201 and the encapsulation layer 204 are not shown in fig. 2. The location of the substrate base 201 and the encapsulation layer 204 can be understood in connection with fig. 3.
The substrate 201 may be a rigid glass substrate or a flexible Polyimide (PI) substrate including a buffer layer (SiNO)x/SiNx) To improve the water and oxygen blocking capability.
A driving circuit may also be included on the substrate 201 to control the light emitting unit 202 to emit light.
A plurality of light emitting cells 202 are disposed above the base substrate 201 at intervals. Each light emitting unit 202 includes an anode layer 2021, a light emitting layer 2022, and a cathode layer 2023, which are sequentially stacked and disposed above the substrate 201, and each light emitting unit 202 is a single-color light emitting unit.
In some embodiments, since the size of the light emitting cells 202 depends on the size of the light emitting layer 2022, the cathode layer 2023 may be disposed over the entire surface of the display panel, that is, the cathode layers 2023 of the light emitting cells 202 may be connected to each other.
In some embodiments, each light emitting cell 202 includes at least one pixel cell.
In some embodiments, the number of pixel units in the light emitting unit 202 may be 1, and the area of the 1 pixel unit is much larger than the pixel area of the display screen of the mobile phone.
In some embodiments, the number of pixel units in the light emitting unit 202 is greater than or equal to 2, and a gap between any two adjacent pixel units in the light emitting unit 202 is smaller than a gap between any two adjacent light emitting units 202. In the light emitting unit 202, a gap between any two adjacent pixel units may be invisible to naked eyes, and the overall display effect and appearance effect are not affected. In the light-emitting unit 202, all the pixel units exhibit single-color light emission of the light-emitting unit 202 by voltage drive control of the anode layer 2021 and the cathode layer 2023 together.
The encapsulation layer 204 is located over the light emitting unit 202. The material of the encapsulation layer 204 includes an inorganic material and/or an organic material, and the encapsulation layer 204 is used to block external water, oxygen, and the like from entering the light emitting unit 202 to protect the light emitting unit 202.
In some embodiments, the encapsulation layer 204 includes a first inorganic film layer, an organic film layer over the first inorganic film layer, and a second inorganic film layer over the organic film layer.
The auxiliary layer 203 is disposed below the encapsulation layer 204 (i.e., between the encapsulation layer 204 and the substrate 201) and between any two adjacent light emitting units 202; the orthographic projection of the auxiliary layer 203 on the substrate 201 at least covers the gap between the orthographic projections of any two adjacent light-emitting units 202 on the substrate 201, and the color of the auxiliary layer 203 corresponding to the position between the two adjacent light-emitting units 202 is the same as the light-emitting color of any one of the two adjacent light-emitting units 202.
The auxiliary layer 203 is required to ensure that the gap between the light emitting cells 202 is covered by the auxiliary layer 203.
That is, in the display panel, the auxiliary layer 203 also serves as a light-emitting defining layer for defining the size of the light-emitting layer 2022 (i.e., the size of the light-emitting unit 202) and isolating adjacent two light-emitting units 202.
In some embodiments, the cathode layer 2023 may extend above the auxiliary layer 203 to achieve an overall arrangement of the cathode layer 2023.
In some embodiments, all of the light-emitting units 202 in the display panel emit light of the same color, i.e., exhibit a monochrome illumination display. At this time, the color of the auxiliary layer 203 coincides with the display color of the display panel to achieve color uniformity of the entire surface.
In some embodiments, the light emitting colors of all the light emitting units 202 in the display panel include at least two. That is, all of the light emitting units 202 may exhibit complex colors in different areas to meet actual lighting display requirements. At this time, the color of the auxiliary layer 203 (portion) corresponding between the adjacent two light emitting cells 202 is the same as the light emission color of any one of the adjacent two light emitting cells 202.
In some embodiments, the display panel is a bottom emission type display panel, and light is emitted downward through the anode layer 2021.
Correspondingly, in some embodiments, the display panel further includes: the reflective back film 205 is disposed above the encapsulation layer 204 to ensure that light coming from the outside is fully reflected and reaches the auxiliary layer 203, so as to achieve the overall display uniformity and improve the display effect and appearance effect in the bright state and the dark state.
In some embodiments, the material of the reflective back film 205 may be an Al film or the like having a high reflectance.
Correspondingly, since the auxiliary layer 203 is disposed between any two adjacent light emitting units 202 in the display panel, the auxiliary layer 203 has a small influence on the light emitting effect of the light emitting units 202, and therefore, the material of the auxiliary layer 203 in the display panel may include a light shielding material or a transparent material. Wherein the light-shielding material comprises a light-absorbing material or a reflective material.
The material of the cathode layer 2023 includes a light-shielding material, and the material of the anode layer 2021 includes a transparent material, so that light emitted from the light-emitting layer 2022 is emitted downward through the anode layer 2021 without being emitted upward from the cathode layer 2023.
In some embodiments, the material of the cathode layer 2023 may be a metal layer with high reflectivity, such as thick Ag.
In some embodiments, the material of anode layer 2021 can be transparent ITO, or the like.
In some embodiments, the display panel is a top emission type display panel, and light is emitted upward through the cathode layer 2023.
Correspondingly, in some embodiments, the display panel further includes: the transparent back film 205 is disposed above the encapsulation layer 204 so as not to affect the transmittance of the light emitted from the light emitting unit 202.
In some embodiments, the material of the transparent backing film 205 may be transparent glass or the like,
correspondingly, the material of the auxiliary layer 203 may include a light shielding material or a transparent material. Wherein the light-shielding material comprises a light-absorbing material or a reflective material.
The cathode layer 2023 is made of a transparent material, and the anode layer 2021 is made of a light-shielding material, so that light emitted from the light-emitting layer 2022 is emitted upward through the cathode layer 2023 without being emitted downward from the anode layer 2021. The anode layer 2021 includes a light-shielding material having high reflectivity.
The embodiment of the application also provides another display panel. Referring to fig. 4, the display panel includes a substrate base 301, a light emitting unit 302, a light emitting definition layer 303, an encapsulation layer 304, and an auxiliary layer 305.
The substrate 301 may be a rigid glass substrate or a flexible Polyimide (PI) substrate including a buffer layer (SiNO)x/SiNx) To improve the water and oxygen blocking capability.
A driving circuit may also be included on the substrate base plate 301 to control the light emitting unit 302 to emit light.
A plurality of light emitting cells 302 are disposed above the substrate base plate 301 at intervals. Each light-emitting unit 302 includes an anode layer 3021, a light-emitting layer 3022, and a cathode layer 3023, which are sequentially stacked over the substrate base 301, and each light-emitting unit 302 is a single-color light-emitting unit.
In some embodiments, since the size of the light emitting cell 302 depends on the size of the light emitting layer 3022, the cathode layer 3023 may be provided over the entire surface of the display panel, that is, the cathode layers 3023 of the respective light emitting cells 302 may be connected to each other.
In some embodiments, each light emitting cell 302 includes at least one pixel cell.
In some embodiments, the number of pixel units in the light emitting unit 302 may be 1, and the area of the 1 pixel unit is much larger than the pixel area of the display screen of the mobile phone.
In some embodiments, the number of pixel units in the light emitting unit 302 is greater than or equal to 2, and a gap between any two adjacent pixel units in the light emitting unit 302 is smaller than a gap between any two adjacent light emitting units 302. In the light emitting unit 302, a gap between any two adjacent pixel units may be invisible to naked eyes, and the overall display effect and appearance effect are not affected. In the light emitting unit 302, all the pixel units exhibit single color light emission of the light emitting unit 302 together by the drive control of the voltage of the anode layer 3021.
The light-emitting definition layer 303 is located above the substrate base 301 and disposed between any two adjacent light-emitting units 302. The light emission defining layer 303 serves to define the size of the light emission layer 3022, i.e., the size of the light emitting unit 302, and to isolate adjacent two light emitting units 302.
In some embodiments, the cathode layer 3023 may extend above the light emission defining layer 303 to achieve a full-face arrangement of the cathode layer 3023.
The encapsulation layer 304 is positioned over the light emitting unit 302. The material of the encapsulation layer 304 includes an inorganic material and/or an organic material, and the encapsulation layer 304 is used to block external water, oxygen, and the like from entering the light emitting unit 302 to protect the light emitting unit 302.
In some embodiments, the encapsulation layer 304 includes a first inorganic film layer, an organic film layer over the first inorganic film layer, and a second inorganic film layer over the organic film layer.
The auxiliary layer 305 is disposed above the encapsulation layer 304, wherein an orthographic projection of the auxiliary layer 305 on the substrate base 301 at least covers a gap between orthographic projections of any two adjacent light-emitting units 302 on the substrate base 301, and a color of a corresponding auxiliary layer 305 (part) between two adjacent light-emitting units 302 is the same as a light-emitting color of any one of the two adjacent light-emitting units 302.
The auxiliary layer 305 is required to ensure that the gap between the light emitting cells 302 is covered by the auxiliary layer 305.
In some embodiments, all of the light-emitting units 302 in the display panel emit light of the same color, i.e., exhibit a monochrome illumination display. At this time, the color of the auxiliary layer 305 coincides with the display color of the display panel to achieve color uniformity of the entire surface.
Correspondingly, in the display panel of the monochromatic illumination display, the auxiliary layer 305 can be coated on the whole surface, and the overall beautiful appearance is realized.
In some embodiments, the light emitting colors of all the light emitting units 302 in the display panel include at least two. That is, all of the light emitting units 302 may exhibit complex colors in different areas to meet actual lighting display requirements. At this time, the color of the auxiliary layer 305 (portion) corresponding between the adjacent two light emitting cells 302 is the same as the light emitting color of any one of the adjacent two light emitting cells 302.
In some embodiments, the display panel is a bottom emission type display panel, and light is emitted downward through the anode layer 3021.
Correspondingly, in some embodiments, the display panel further includes: the reflective back film 306 is disposed above the encapsulation layer 304 to ensure that light coming from the outside is fully reflected and reaches the auxiliary layer 305, so as to achieve the overall display uniformity and improve the display effect and appearance effect in the bright state and the dark state.
In some embodiments, the material of the reflective backing film 306 may be an Al film or the like having a high reflectivity,
correspondingly, since the auxiliary layer 305 is disposed above the encapsulation layer 304 and also above the light emitting unit 302, the material of the auxiliary layer 305 includes a light shielding material to block light emitted from the light emitting unit 302 from being emitted from above. Wherein the light-shielding material comprises a light-absorbing material or a reflective material.
The material of cathode layer 3023 comprises a light blocking material and the material of anode layer 3021 comprises a transparent material so that light emitted from light emitting layer 3022 will exit through anode layer 3021 downward and not exit upward from cathode layer 3023.
In some embodiments, the material of cathode layer 3023 may be a metal layer with high reflectivity, such as thick Ag.
In some embodiments, the material of anode layer 3021 can be transparent ITO or the like.
In some embodiments, the display panel is a top emission type display panel, and light is emitted upward through the cathode layer 3023.
Correspondingly, in some embodiments, the display panel further includes: the transparent back film 306 is disposed above the encapsulation layer 304 so as not to affect the transmittance of the light emitted from the light emitting unit 302.
In some embodiments, the material of the transparent backing film 306 may be transparent glass or the like.
Correspondingly, since the auxiliary layer 305 is disposed above the encapsulation layer 304 and also above the light emitting unit 302, the material of the auxiliary layer 305 includes a transparent material, so that the light emitted by the light emitting unit 302 can pass through the auxiliary layer 305.
The material of cathode layer 3023 comprises a transparent material and the material of anode layer 3021 comprises a light blocking material so that light emitted from light emitting layer 3022 will exit through cathode layer 3023 upward and not exit downward from anode layer 3021. The material of anode layer 3021 includes a light blocking material with high reflectivity.
The embodiment of the application also provides a display device which comprises the display panel in any one of the embodiments.
In some embodiments, the display device may include a display panel and a housing, the display panel being connected with the housing, e.g., the display panel being embedded in the housing. The display device may be any device requiring a partitioned display, such as a vehicle-mounted display.
The embodiment of the application also provides an illuminating device, and the display device comprises the display panel in any embodiment.
In some embodiments, the illumination device may include a display panel and a housing, the display panel being connected with the housing, e.g., the display panel being embedded within the housing. The display device can be any device needing subarea illumination, such as an OLED car lamp.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. Although the embodiments disclosed in the present application are described above, the embodiments are merely used for the understanding of the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (15)
1. A display panel, comprising:
a substrate base plate;
a plurality of light emitting units arranged above the substrate base plate at intervals; each light-emitting unit comprises an anode layer, a light-emitting layer and a cathode layer which are sequentially stacked and arranged above the substrate, and each light-emitting unit is a monochromatic light-emitting unit;
an encapsulation layer over the light emitting unit;
an auxiliary layer disposed above or below the encapsulation layer; the orthographic projection of the auxiliary layer on the substrate base plate at least covers a gap between the orthographic projections of any two adjacent light-emitting units on the substrate base plate, and the color of the auxiliary layer corresponding to the position between the two adjacent light-emitting units is the same as the light-emitting color of any one of the two adjacent light-emitting units.
2. The display panel according to claim 1, wherein the auxiliary layer is disposed below the encapsulation layer and between any two adjacent light emitting units.
3. The display panel according to claim 1, wherein the auxiliary layer is disposed over the encapsulation layer;
the display panel also comprises a light-emitting definition layer which is positioned above the substrate base plate and is arranged between any two adjacent light-emitting units;
wherein an orthographic projection of the auxiliary layer on the substrate base plate at least covers an orthographic projection of the luminescence defining layer on the substrate base plate.
4. The display panel according to any one of claims 1 to 3, wherein the display panel is a bottom emission type display panel.
5. The display panel according to claim 4, further comprising: and the reflective back film is arranged above the packaging layer.
6. The display panel according to claim 4, wherein a material of the auxiliary layer comprises a light-shielding material.
7. The display panel according to claim 4, wherein a material of the cathode layer comprises a light-shielding material;
the material of the anode layer comprises a transparent material.
8. The display panel according to any one of claims 1 to 3, wherein the display panel is a top emission type display panel.
9. The display panel according to claim 8, further comprising: and the transparent back film is arranged above the packaging layer.
10. The display panel according to claim 8, wherein the material of the auxiliary layer comprises a transparent material.
11. The display panel according to claim 8, wherein a material of the cathode layer comprises a transparent material;
the material of the anode layer includes a light blocking material.
12. The display panel according to claim 1, wherein the light emitting colors of all the light emitting units in the display panel are the same.
13. The display panel according to claim 1, wherein the light emitting colors of all the light emitting units in the display panel include at least two.
14. A display device characterized by comprising the display panel according to any one of claims 1 to 13.
15. An illumination device characterized by comprising the display panel according to any one of claims 1 to 13.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110620300.XA CN113327969A (en) | 2021-06-03 | 2021-06-03 | Display panel, display device and lighting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110620300.XA CN113327969A (en) | 2021-06-03 | 2021-06-03 | Display panel, display device and lighting device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108511492A (en) * | 2018-04-02 | 2018-09-07 | 上海天马微电子有限公司 | Organic light emitting display panel and preparation method thereof, organic light-emitting display device |
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| US20200152704A1 (en) * | 2018-11-09 | 2020-05-14 | Samsung Display Co., Ltd. | Display device and method of fabricating the same |
| CN110047890A (en) * | 2019-04-18 | 2019-07-23 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display panels and flexible display apparatus |
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