CN113053972A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113053972A CN113053972A CN202110263268.4A CN202110263268A CN113053972A CN 113053972 A CN113053972 A CN 113053972A CN 202110263268 A CN202110263268 A CN 202110263268A CN 113053972 A CN113053972 A CN 113053972A
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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
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
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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
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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Abstract
The present invention provides a display panel and a display device, the display panel and the display device including: a light-emitting layer including a plurality of light-emitting portions, a gap being provided between two adjacent light-emitting portions; and the photoelectric conversion layer is positioned on the light emitting layer and comprises a plurality of photoelectric conversion parts, and each photoelectric conversion part is opposite to the corresponding gap. The photoelectric conversion layer can absorb external light and does not influence the light transmittance of the display panel, namely the scheme can reduce the reflectivity of the display panel to the external light and maintain the light transmittance of the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to manufacturing of a display device, and particularly relates to a display panel and a display device.
Background
OLED (Organic Light-Emitting Diode) displays are divided into bottom emission structures and top emission structures, and the latter has the characteristics of high pixel aperture ratio and long pixel life compared with the former.
At present, in an OLED display with a top emission structure, in order to improve the light extraction rate of an OLED device, a total reflection electrode is generally used to fabricate an anode, which results in a higher reflectivity of a display panel to external light, resulting in a lower contrast ratio of the display panel, and reducing the quality of a display picture of the display panel.
Therefore, it is necessary to provide a display panel and a display device that can secure the brightness of a display screen with low input power consumption.
Disclosure of Invention
The invention aims to provide a display panel and a display device, wherein a plurality of photoelectric conversion parts are arranged on a light emitting layer, and each photoelectric conversion part is arranged opposite to the corresponding gap, so that the light transmittance of the display panel is maintained, and the problem of low contrast of the display panel caused by high reflectivity of the display panel to external light is solved.
An embodiment of the present invention provides a display panel, including:
a light-emitting layer including a plurality of light-emitting portions, a gap being provided between two adjacent light-emitting portions;
and the photoelectric conversion layer is positioned on the luminous layer and comprises a plurality of photoelectric conversion parts, and each photoelectric conversion part is opposite to the corresponding gap.
In one embodiment, each of the photoelectric conversion portions includes:
a positive electrode;
the negative electrode is positioned on one side of the positive electrode, which is far away from the light-emitting layer;
an assembly portion between the positive electrode and the negative electrode.
In one embodiment, each of the light emitting portions includes a cathode electrically connected to the anode of the corresponding photoelectric conversion portion.
In an embodiment, each of the light emitting portions further includes an anode located on a side of the corresponding cathode away from the photoelectric conversion layer, and the anode is electrically connected to the corresponding cathode of the photoelectric conversion portion.
In one embodiment, the method further comprises:
the conductive layer is positioned on one side, close to the light emitting layer, of the photoelectric conversion layer and comprises a plurality of conductive parts, each conductive part and the corresponding photoelectric conversion part are arranged oppositely, and each conductive part is electrically connected with the corresponding photoelectric conversion part and the corresponding cathode.
In an embodiment, the conductive layer further includes a plurality of conductive dots, the conductive dots are distributed on one side of the plurality of conductive portions close to the light emitting layer, and each of the conductive dots is electrically connected to the corresponding conductive portion and the corresponding cathode.
In one embodiment, the display panel includes a first region and a second region, the first region being located in a middle of the display panel, the second region surrounding the first region;
wherein the number of the conductive dots per unit area in the first region is greater than the number of the conductive dots per unit area in the second region.
In one embodiment, the method further comprises:
the gasket layer is positioned on one side of the light-emitting layer close to the conductive layer and comprises a plurality of gasket parts, and each gasket part is electrically connected with the corresponding conductive point and the corresponding cathode.
In one embodiment, the conductive layer and the pad layer are made of the same material.
Embodiments of the present invention also provide a display device, which includes the display panel as described in any one of the above.
The present invention provides a display panel and a display device, the display panel and the display device including: a light-emitting layer including a plurality of light-emitting portions, a gap being provided between two adjacent light-emitting portions, a photoelectric conversion layer including a plurality of photoelectric conversion portions being provided on the light-emitting layer, and each photoelectric conversion portion being provided opposite to the corresponding gap; the photoelectric conversion layers can absorb external light to reduce the reflectivity of the display panel to the external light, and each photoelectric conversion part is arranged opposite to the corresponding gap to avoid influencing the light transmittance of the display panel.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic cross-sectional view of a first display panel according to an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of a second display panel according to an embodiment of the invention.
Fig. 3 is a schematic cross-sectional view of a third display panel according to an embodiment of the invention.
Fig. 4 is a schematic bottom view of a conductive layer to a cover plate in a display panel according to an embodiment of the invention.
Fig. 5 is a schematic cross-sectional view of a fourth display panel according to an embodiment of the invention.
Fig. 6 is a schematic distribution diagram of a plurality of conductive dots in the display panel according to the embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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.
In the description of the present invention, it should be understood that the terms "upper", "close", "far", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, wherein "upper" merely means that a surface is above an object, and specifically refers to a right above, an oblique above, and an upper surface, as long as the surface is above the object level, and the orientations or positional relationships are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, and "electrically connected" means that both are electrically connected and not limited to being directly connected or indirectly connected unless specifically defined otherwise.
In addition, it should be noted that the drawings only provide a structure closely related to the present invention, and some details which are not related to the present invention are omitted, so as to simplify the drawings and make the invention clear, but not to show that the device in practice is the same as the drawings and not to limit the device in practice.
The present invention provides a display panel including, but not limited to, the following embodiments and combinations between the following embodiments.
In one embodiment, as shown in fig. 1, the display panel 100 includes: a light-emitting layer 10, the light-emitting layer 10 including a plurality of light-emitting portions 101, a gap 01 being provided between two adjacent light-emitting portions 101; and a photoelectric conversion layer 20, wherein the photoelectric conversion layer 20 is located on the light emitting layer 10, the photoelectric conversion layer 20 includes a plurality of photoelectric conversion portions 201, and each photoelectric conversion portion 201 is arranged opposite to the corresponding gap 01.
Specifically, the photoelectric conversion layer 20 and the light emitting layer 10 may be disposed in contact with each other or in non-contact with each other, and here, the photoelectric conversion layer 20 and the light emitting layer 10 are disposed in non-contact with each other, for example. It can be understood that, on one hand, the photoelectric conversion layer 20 is located on the light emitting layer 10, that is, the photoelectric conversion layer 20 can absorb the light emitted into the display panel 100 from the outside, so as to prevent the display panel 100 from reflecting the light to reduce the contrast of the display panel 100; on the other hand, since the gap is located between two adjacent light emitting portions 101, and each of the photoelectric conversion portions 201 is disposed opposite to the corresponding gap 01, that is, each of the photoelectric conversion portions 201 does not prevent the light emitted from the light emitting portions 101 from exiting the display panel 100, the light emitting rate of the display panel 100 can be prevented from being reduced. The photoelectric conversion layer 20 may include a solar cell, and further, the solar cell may be an organic solar cell.
In one embodiment, as shown in fig. 2, each of the photoelectric conversion portions 201 includes: a positive electrode 2011; a negative electrode 2012, wherein the negative electrode 2012 is positioned on the side of the positive electrode 2011 away from the light-emitting layer 10; a component part 2013, the component part 2013 being located between the positive electrode 2011 and the negative electrode 2012.
Specifically, the negative electrode 2012 may include a transparent conductive material, such as indium tin oxide or aluminum-doped zinc oxide, the negative electrode 2012 may be formed by etching, and the thickness of the negative electrode 2012 may be 80 nm. Specifically, the positive electrode 2011 may include a metal, and further, the positive electrode 2011 may include a first positive electrode and a second positive electrode, the second positive electrode is located on a side of the first positive electrode away from the negative electrode 2012, the first positive electrode may include molybdenum trioxide, the second positive electrode may include aluminum, and the positive electrode 2011 may be formed by evaporation. Specifically, the assembly part 2013 includes a modification layer and an active layer, the active layer is located on a side of the modification layer away from the negative electrode 2012, the composition material of the modification layer can comprise zinc oxide, the modification layer can be formed by adopting an evaporation plating mode, the thickness of the modification layer can be 40 nanometers, the active layer comprises a first active layer and a second active layer, the second active layer is located on the side of the first active layer away from the anode 2012, the constituent material of the first active layer includes PTB7, the constituent material of the second active layer includes PC71BM, the active layer may have a thickness of 100 nm, the first active layer and the second active layer may be formed by spin coating, and it should be noted that after the active layer is formed, the active layer needs to be annealed at a temperature of not higher than 100 ℃, and the annealing time may be 15 minutes.
As shown in fig. 2, the display panel 100 further includes a cover plate 30, and the cover plate 30 is located on a side of the photoelectric conversion layer 20 away from the light emitting layer 10. Specifically, the cover plate 30 may be provided first, and then the plurality of negative electrodes 2012, the plurality of assembly portions 2013, and the plurality of positive electrodes 2011 may be sequentially formed on the cover plate 30 to form the photoelectric conversion layer 20, and then the cover plate 30 provided with the photoelectric conversion layer 20 and the light emitting layer 10 may be disposed to face each other to form the display panel 100.
Specifically, as shown in fig. 2, the plurality of light-emitting portions 101 may include a plurality of first light-emitting portions 1011, a plurality of second light-emitting portions 1012 and a plurality of third light-emitting portions 1013 having different colors, and any two of the first light-emitting portions 1011, the second light-emitting portions 1012 and the third light-emitting portions 1013 may have corresponding gaps 01 therebetween, and each gap 01 may be used to distinguish the light-emitting portions 101 having different colors. For example, the plurality of first light emitting parts 1011 may be arranged as a first light emitting bar, the plurality of second light emitting parts 1012 may be arranged as a second light emitting bar, the plurality of third light emitting parts 1013 may be arranged as a third light emitting bar, any two of the first light emitting bar, the second light emitting bar, and the third light emitting bar may have the corresponding gap 01 therebetween, and when the first light emitting bar, the second light emitting bar, and the third light emitting bar are arranged in parallel, the plurality of gaps 01 may also be arranged in parallel; for another example, the plurality of first light-emitting portions 1011, the plurality of second light-emitting portions 1012, and the plurality of third light-emitting portions 1013 may be arranged in another manner, and the form of the plurality of gaps 01 may be related to the positions of the light-emitting portions 101 of different colors. It should be noted that a plurality of corresponding gaps 01 may be disposed between a plurality of first light emitting portions 1011 located in different pixel units to distinguish different pixel units. Further, each of the gaps 01 may have a pixel defining portion 102 disposed therein, and a thickness of each of the pixel defining portions 102 may be greater than a thickness of any one of the light emitting portions 101, so as to block two adjacent light emitting portions 101.
In one embodiment, as shown in fig. 2, each of the light emitting portions 101 includes a cathode 103, and the cathode 103 is electrically connected to the anode 2011 of the corresponding photoelectric conversion portion 201. Specifically, each of the cathodes 103 has two corresponding photoelectric conversion portions 201 located at two sides of the cathode 103, and a plurality of the cathodes 103 may be connected to form a cathode layer 104, that is, the cathode layer 104 is a continuous film layer, and the cathode layer 104 covers a plurality of the light emitting portions 101 and a plurality of the pixel defining portions 102. It is understood that the light emitting layer 10 in the display panel 100 can emit light to a side close to the cover plate 30, and thus the cathode layer 104 can be a transparent conductive layer. Specifically, the cathode layer 104 and the plurality of positive electrodes 2011 may be in direct contact or in indirect contact to be electrically connected, and here, the cathode layer 104 and the plurality of positive electrodes 2011 may be in indirect contact as an example.
It can be understood that, since the cathode layer 104 is electrically connected to the plurality of positive electrodes 2011, and the plurality of positive electrodes 2011 have a conductive property, that is, the plurality of positive electrodes 2011 are connected in parallel to the cathode layer 104 as a resistor, or it is understood that the plurality of positive electrodes 2011 and the cathode layer 104 as a whole are compared with the cathode layer 104, and the thickness is increased, that is, the plurality of positive electrodes 2011 and the cathode layer 104 as a whole are compared with the cathode layer 104, the resistance is decreased, the conductive capability is increased, and the voltage difference between the central area and the edge area of the display panel 100 can be effectively decreased, so as to decrease the luminance difference between the central area and the edge area of the display panel 100.
In an embodiment, as shown in fig. 2, each of the light emitting portions 101 further includes an anode 105, the anode 105 is located on a side of the corresponding cathode 103 away from the photoelectric conversion layer 20, and the anode 105 is electrically connected to the corresponding cathode 2012 of the photoelectric conversion portion 201. Specifically, a plurality of anodes 105 may be connected to form an anode layer 106, that is, the anode layer 106 is a continuous film, and the anode layer 106 carries a plurality of light emitting portions 101 and a plurality of pixel defining portions 102. Similarly, the light emitting layer 10 in the display panel 100 can emit light to a side close to the cover plate 30, the anode 105 can be a conductive layer with total reflection, and the constituent material of the anode 105 can include, but is not limited to, Al, Mg, Ca, or other metal elements. Further, each of the light emitting portions 101 further includes a functional portion 107, each of the functional portions 107 is located between the corresponding anode 105 and the corresponding cathode 103, and a hole generated by each of the anodes 105 and an electron generated by the corresponding cathode 103 move to the corresponding functional portion 107, and when the two meet at the light emitting layer, an energy exciton is generated, thereby exciting the light emitting molecule to finally generate visible light.
It can be understood that, in this embodiment, on the basis of the electrical connection between each cathode 103 and the corresponding anode 2011 of the photoelectric conversion portion 201, the corresponding anode 105 is electrically connected to the corresponding cathode 2012 of the photoelectric conversion portion 201, that is, a loop is formed between each photoelectric conversion portion 201 and the corresponding light emitting portion 101, and each photoelectric conversion portion 201 can respectively charge the corresponding light emitting portion 101, so that the absorbed electric energy generated by the conversion of the external light is used to drive the corresponding light emitting portion 101 to emit light. Further, a first capacitor may be disposed between the cathode 103 and the positive electrode 2011 of the corresponding photoelectric conversion portion 201, a second capacitor may be disposed between the anode 105 and the negative electrode 2012 of the corresponding photoelectric conversion portion 201, and the first capacitor and the second capacitor may be integrally disposed to form a capacitor, each capacitor is configured to store the corresponding electric energy, and the corresponding light emitting portion 101 is driven to emit light by using the corresponding electric energy according to actual conditions.
As shown in fig. 2, the display panel 100 further includes an array substrate 40, and the array substrate 40 is located on a side of the light emitting layer 10 away from the photoelectric conversion layer 20. Specifically, the array substrate 40 may be provided first, and then the anode layer 106, the plurality of functional portions 107, and the cathode layer 104 may be sequentially formed on the array substrate 40 to form the light emitting layer 10. It is understood that both the array substrate 40 and the photoelectric conversion layer 20 can drive the light emitting layer 10 to emit light.
In an embodiment, as shown in fig. 3 and 4, the display panel 100 further includes a conductive layer 50, the conductive layer 50 is located on a side of the photoelectric conversion layer 20 close to the light emitting layer 10, the conductive layer 50 includes a plurality of conductive portions 501, each conductive portion 501 is disposed opposite to the corresponding photoelectric conversion portion 201, and in combination with fig. 2, each conductive portion 501 is electrically connected to the corresponding photoelectric conversion portion 201 and the corresponding cathode 103. Specifically, the material of the conductive portions 501 includes, but is not limited to, gold, silver, aluminum, copper, palladium, or other metals, and the conductive portions 501 may be fabricated by evaporation or coating; further, an ink jet printing coating containing gold may be applied on the side of the photoelectric conversion layer 20 away from the cover plate 30, and then a curing process may be performed in an environment of 200 to 300 ℃ to form the plurality of conductive portions 501.
In an embodiment, as shown in fig. 3 and 4, the conductive layer 50 further includes a plurality of conductive dots 502, the plurality of conductive dots 502 are distributed on a side of the plurality of conductive portions 501 close to the light emitting layer 10, and each of the conductive dots 502 is electrically connected to the corresponding conductive portion 501 and the corresponding cathode 103. Specifically, referring to fig. 2, a plurality of the conductive dots 502 may be disposed on one side of each of the conductive portions 501 close to the light emitting layer 10, the plurality of the conductive dots 502 may be made of a material including, but not limited to, gold, silver, aluminum, copper, palladium, or other metals, and the plurality of the conductive dots 502 may be made by coating; further, the material of the plurality of conductive dots 502 may be the same as the material of the plurality of conductive portions 501, and an inkjet printing coating containing gold may be applied to a side of the plurality of conductive dots 502 away from the cover plate 30 to form the plurality of conductive dots 502.
Specifically, as shown in fig. 5, since the cover plate 30 provided with the photoelectric conversion layer 20 and the array substrate 40 provided with the light emitting layer 10 need to be oppositely disposed to form the display panel 100, a circle of glue frame 60 is disposed between the photoelectric conversion layer 20 and the array substrate 40, the glue frame 60 connects the photoelectric conversion layer 20 and the array substrate 40, and in order to protect the light emitting layer 10, the height of the glue frame 60 may be greater than the height of the light emitting layer 10. It can be understood that the conductive points 502 distributed on one side of the conductive portions 501 close to the light emitting layer 10 protrude from the conductive portions 501, and the conductive points 502 and the cathode layer 104 can be electrically connected by bonding, and similarly, the voltage difference between the central area and the edge area of the display panel 100 can be effectively reduced, so as to reduce the brightness difference between the central area and the edge area of the display panel 100.
In one embodiment, as shown in fig. 6, the display panel 100 includes a first region 02 and a second region 03, the first region 02 is located in the middle of the display panel 100, and the second region 03 surrounds the first region 02; wherein the number of the conductive dots 502 per unit area in the first region 02 is larger than the number of the conductive dots 502 per unit area in the second region 03. As can be seen from the above analysis, the difference in voltage between different regions of the display panel 100 is different due to the different distances between the different regions, so that the difference in brightness between the different regions is different, and generally, the greater the brightness of the region farther away from the middle of the display panel 100, that is, the greater the number of the conductive points 502 per unit area in the first region 02 is, the greater the number of the conductive points 502 per unit area in the second region 03 is, the greater the resistance of the first region 02 can be reduced, the greater the brightness of the first region 02 can be improved, and the difference in brightness between the center region and the edge region of the display panel 100 can be further reduced. It can be understood that the number of the conductive points 502 in each region can be set reasonably according to the specific position of each region, so as to improve the uniformity of the display panel 100.
In an embodiment, as shown in fig. 1, 2 and 5, the display panel 100 further includes a gasket layer 70, the gasket layer 70 is located on a side of the light emitting layer 10 close to the conductive layer 50, the gasket layer 70 includes a plurality of gasket portions 701, and each gasket portion 701 electrically connects the corresponding conductive point 502 and the corresponding cathode 103. Specifically, the material of the plurality of pad portions 701 may include gold, silver, aluminum, copper, palladium or other metals, the plurality of pad portions 701 may be formed by evaporation, a projection of each pad portion 701 on the light emitting layer 10 may be a circle or a rectangle, a diameter of the circle may be 10 micrometers to 30 micrometers, the rectangle may be, but is not limited to, a rectangle with a side length of 10 micrometers or a rectangle with a side length of 5 micrometers to 50 micrometers, and a thickness of each pad portion 701 may be 50 nanometers to 5000 nanometers, for example, 200 nanometers. It should be noted that a plurality of pad portions 701 may be disposed corresponding to a plurality of conductive points 502, so that the pad portions 70 and the conductive layers 50 are in contact to be electrically connected.
In one embodiment, the composition material of the conductive layer 50 is the same as the composition material of the pad layer 70. Specifically, the constituent materials of the plurality of conductive portions 501, the plurality of conductive dots 502, and the plurality of pad portions 701 may be the same, and may be gold, for example. On one hand, the same material composition of the conductive layer 50 and the gasket layer 70 may make the contact resistance generated when the conductive layer 50 and the gasket layer 70 are in contact be smaller, which is beneficial to reducing the brightness difference between the central area and the edge area of the display panel 100; on the other hand, the conductive layer 50 and the liner layer 70 are generally attached to each other by hot pressing for electrical connection, and when the materials of the two are the same, atom penetration is facilitated in the hot pressing process, so that the contact tightness between the conductive layer 50 and the liner layer 70 is improved. Further, the cover plate 30 provided with the photoelectric conversion layer 20 and the conductive layer 50, and the array substrate 40 provided with the light emitting layer 10 may be transferred into a vacuum chamber to be paired to form the display panel 100, wherein the vacuum degree in the vacuum chamber may be (1 × 10)-5) Pa to (1 x 10)-2) Pa, the temperature in the vacuum chamber may be 80 ℃ to 110 ℃, the pressure in the vacuum chamber may be 0.1MPa to 5MPa, the time period for pairing the conductive layer 50 and the pad layer 70 may not be longer than 60 minutes, and further, the vacuum degree in the vacuum chamber may be (5 × 10 ℃.)-5) Pa, the temperature in the vacuum cavity can be 80-90 ℃, and the vacuum cavityThe internal pressure may be 1MPa, and the time period for pairing the conductive layer 50 and the pad layer 70 may be 30 minutes.
The present invention provides a display device including, but not limited to, a display panel as described in any of the above.
The present invention provides a display panel and a display device, the display panel and the display device including: a light-emitting layer including a plurality of light-emitting portions, a gap being provided between two adjacent light-emitting portions, a photoelectric conversion layer including a plurality of photoelectric conversion portions being provided on the light-emitting layer, and each photoelectric conversion portion being provided opposite to the corresponding gap; the photoelectric conversion layers can absorb external light to reduce the reflectivity of the display panel to the external light, and each photoelectric conversion part is arranged opposite to the corresponding gap to avoid influencing the light transmittance of the display panel.
The structure of the display panel and the display device including the display panel provided by the embodiment of the present invention are described in detail above, and a specific example is applied in the present disclosure to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising:
a light-emitting layer including a plurality of light-emitting portions, a gap being provided between two adjacent light-emitting portions;
and the photoelectric conversion layer is positioned on the luminous layer and comprises a plurality of photoelectric conversion parts, and each photoelectric conversion part is opposite to the corresponding gap.
2. The display panel according to claim 1, wherein each of the photoelectric conversion portions comprises:
a positive electrode;
the negative electrode is positioned on one side of the positive electrode, which is far away from the light-emitting layer;
an assembly portion between the positive electrode and the negative electrode.
3. The display panel according to claim 2, wherein each of the light emitting portions includes a cathode electrically connected to the anode of the corresponding photoelectric conversion portion.
4. The display panel according to claim 3, wherein each of the light emitting portions further includes an anode on a side of the corresponding cathode away from the photoelectric conversion layer, the anode being electrically connected to the cathode of the corresponding photoelectric conversion portion.
5. The display panel of claim 3, further comprising:
the conductive layer is positioned on one side, close to the light emitting layer, of the photoelectric conversion layer and comprises a plurality of conductive parts, each conductive part and the corresponding photoelectric conversion part are arranged oppositely, and each conductive part is electrically connected with the corresponding photoelectric conversion part and the corresponding cathode.
6. The display panel of claim 5, wherein the conductive layer further comprises a plurality of conductive dots, the plurality of conductive dots are distributed on one side of the plurality of conductive portions close to the light emitting layer, and each conductive dot is electrically connected to the corresponding conductive portion and the corresponding cathode.
7. The display panel according to claim 6, wherein the display panel includes a first region and a second region, the first region being located in a middle of the display panel, the second region surrounding the first region;
wherein the number of the conductive dots per unit area in the first region is greater than the number of the conductive dots per unit area in the second region.
8. The display panel of claim 6, further comprising:
the gasket layer is positioned on one side of the light-emitting layer close to the conductive layer and comprises a plurality of gasket parts, and each gasket part is electrically connected with the corresponding conductive point and the corresponding cathode.
9. The display panel according to claim 8, wherein a constituent material of the conductive layer and a constituent material of the pad layer are the same.
10. A display device comprising the display panel according to any one of claims 1 to 9.
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| CN113053972B (en) | 2023-02-07 |
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