CN116234373A - Pixel structure, display panel and display panel preparation method - Google Patents
Pixel structure, display panel and display panel preparation method Download PDFInfo
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- CN116234373A CN116234373A CN202310520212.1A CN202310520212A CN116234373A CN 116234373 A CN116234373 A CN 116234373A CN 202310520212 A CN202310520212 A CN 202310520212A CN 116234373 A CN116234373 A CN 116234373A
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Abstract
The application provides a pixel structure, a display panel and a display panel preparation method, and relates to the technical field of display, wherein the pixel structure comprises a plurality of sub-pixels, the plurality of sub-pixels comprise at least one target sub-pixel, and the target sub-pixel comprises a first electrode, a light emitting layer, a second electrode, a pixel definition layer, a conductive unit and an eave structure; the pixel definition layer is arranged around the first electrode, the conductive unit is arranged above the pixel definition layer, and the eave structure is arranged on one side, away from the first electrode, above the conductive unit; the light-emitting layer is covered above the first electrode, the pixel definition layer, the conductive unit and the eave structure; the second electrode covers the upper part of the light-emitting layer, and one end of the second electrode, which is far away from the eave structure, is overlapped with the conductive units of the adjacent sub-pixels; the conductive elements of adjacent sub-pixels are not connected. The technical scheme provided by the application can improve the resolution of the display panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a pixel structure, a display panel and a display panel preparation method.
Background
Display panels based on light emitting devices such as organic light emitting diodes (Organic Light Emitting Diode, OLEDs) are increasingly being used in products such as computers and mobile phones because of their light weight, energy saving, wide viewing angle, wide color gamut, and high contrast.
For display panels, resolution enhancement can significantly enhance the definition of the image, and it is common to increase the number of pixel units in the display panel by reducing the area of the pixel units in the display panel, so as to enhance the resolution.
However, to ensure the charging rate, devices and wires in the pixel unit occupy a certain area, which makes the area reduction of the pixel unit limited, and the resolution reaches the bottleneck, so how to improve the resolution of the display panel is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present application provides a pixel structure, a display panel and a method for manufacturing the display panel, which are used for improving the resolution of the display panel.
To achieve the above object, in a first aspect, an embodiment of the present application provides a pixel structure, including: a plurality of sub-pixels including at least one target sub-pixel including a first electrode, a light emitting layer, a second electrode, a pixel defining layer, a conductive unit, and an eave structure;
the pixel definition layer is arranged around the first electrode, the conductive unit is positioned above the pixel definition layer, and the eave structure is positioned on one side, away from the first electrode, above the conductive unit;
the light-emitting layer covers the first electrode, the pixel definition layer, the conductive unit and the eave structure;
the second electrode covers the upper part of the light-emitting layer, and one end of the second electrode, which is far away from the eave structure, is overlapped with the conductive units of the adjacent sub-pixels;
the conductive elements of adjacent sub-pixels are not connected.
As an alternative implementation manner of the embodiment of the present application, an edge of the lower end surface of the conductive unit near the first electrode is flush with an edge of the upper end surface of the pixel defining layer near the first electrode.
As an alternative implementation manner of the embodiment of the present application, the conductive unit covers a side of the upper surface of the pixel defining layer, which is close to the first electrode, and is in contact with the first electrode.
As an optional implementation manner of this embodiment of the present application, the pixel structure includes three sub-pixels, where a light emitting color of a light emitting layer above a conductive unit of the target sub-pixel is the same as a light emitting color of a light emitting layer above a first electrode of the target sub-pixel, and the three sub-pixels include a red sub-pixel, a blue sub-pixel, and a green sub-pixel.
As an optional implementation manner of the embodiment of the present application, the pixel structure includes two sub-pixels, where the two pixels are target sub-pixels, and light emitting colors of light emitting layers above first electrodes of the two sub-pixels are different;
the light emitting color of the light emitting layer over the conductive unit of the two sub-pixels is different from the light emitting color of the light emitting layer over the first electrode of the two sub-pixels.
As an optional implementation manner of this embodiment of the present application, the light-emitting layer above the conductive units of the two sub-pixels has a red light-emitting color, and the light-emitting layer above the first electrodes of the two sub-pixels has a green light-emitting color and a blue light-emitting color, respectively.
As an alternative implementation manner of the embodiment of the present application, the first electrode and the conductive unit are connected to the same signal line.
As an optional implementation manner of the embodiment of the present application, each sub-pixel in the pixel structure includes the first electrode, the light emitting layer, the second electrode, the pixel defining layer, the conductive unit and the eave structure.
In a second aspect, embodiments of the present application provide a display panel, including: a substrate, a driving layer, an encapsulation layer, and a plurality of pixel structures as described in the first aspect or any one of the first aspects, wherein the pixel structures are located between the driving layer and the encapsulation layer.
In a third aspect, an embodiment of the present application provides a method for preparing a display panel according to the second aspect, where the method includes:
forming a driving layer on a substrate base plate, and forming a first electrode of each sub-pixel on the driving layer;
forming a pixel defining layer around each first electrode, and forming a boundary conductive layer above the pixel defining layer, wherein the boundary conductive layer comprises a conductive unit corresponding to each sub-pixel;
forming an eave structure above each conductive unit;
forming a light emitting layer over the first electrode, the pixel defining layer, the conductive unit, and the eave structure, and forming a second electrode of each of the sub-pixels over the light emitting layer;
and forming an encapsulation layer above the second electrode and the eave structure.
The technical scheme provided by the embodiment of the application comprises a plurality of sub-pixels, wherein the plurality of sub-pixels comprise at least one target sub-pixel, and the target sub-pixel comprises a first electrode, a light-emitting layer, a second electrode, a pixel definition layer, a conductive unit and an eave structure. The pixel definition layer is arranged around the first electrode, the conductive unit is arranged above the pixel definition layer, and the eave structure is arranged on one side, away from the first electrode, above the conductive unit; the light-emitting layer is covered above the first electrode, the pixel definition layer, the conductive unit and the eave structure; the second electrode covers the upper part of the light-emitting layer, and one end of the second electrode, which is far away from the eave structure, is overlapped with the conductive units of the adjacent sub-pixels; the conductive elements of adjacent sub-pixels are not connected. In the above technical solution, the conductive unit of the target subpixel is multiplexed, and a new display area of the target subpixel is formed with the light emitting layer and the second electrode above the conductive unit. The new display area can be a compensation area of a traditional display area of the target sub-pixel (at this time, the light-emitting color of the new display area is the same as that of the traditional display area), so that the area of the traditional display area of the target sub-pixel can be reduced under the condition that the area of the display area corresponding to the target sub-pixel is unchanged, the occupied total area of the target sub-pixel is reduced, more sub-pixels can be arranged on a display panel with the same specification to form more pixels, and the resolution of the display panel is improved; the light-emitting color of the new display area may be different from that of the corresponding conventional display area, and at this time, the new display area of the target sub-pixel may be formed into a pixel with the conventional display area of the conventional display area and the conventional display area of an adjacent sub-pixel (for example, the conventional display area of the target sub-pixel emits green light, the new display area emits red light, the conventional display area of an adjacent sub-pixel of the target sub-pixel emits blue light, and the above 3 display areas form a pixel), so that only the corresponding areas of the original two sub-pixels are occupied to form a pixel, so that the display panel with the same specification may form more pixels, and the resolution of the display panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a top view of a pixel structure according to an embodiment of the present disclosure;
FIG. 3 is a top view of another pixel structure according to an embodiment of the present disclosure;
FIG. 4 is a top view of yet another pixel structure provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure;
FIG. 6 is a partial top view of a display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present application.
Reference numerals illustrate:
10-a substrate base; 20-a driving layer;
30-target subpixels; 40-packaging layer;
301-a first electrode; 302-a light emitting layer;
303-a second electrode; 304-a pixel definition layer;
305-a conductive unit; 306-eave structure.
Detailed Description
Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application. The terminology used in the description of the embodiments of the application is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application, and as shown in fig. 1, the display panel according to an embodiment of the present application may include a substrate 10, a driving layer 20, a pixel structure, and an encapsulation layer 40 disposed from bottom to top.
The substrate 10 may be a rigid substrate or a flexible substrate, the material of the rigid substrate may be glass, and the material of the flexible substrate may be a polymer material such as polyimide.
The driving layer 20 is disposed above the substrate 10, and may include a plurality of thin film transistors (Thin Film Transistor, TFT) for driving the pixel structure to emit light.
The pixel structure may include a plurality of sub-pixels including at least one target sub-pixel 30, and the target sub-pixel 30 may include a first electrode 301, a light emitting layer 302, a second electrode 303, a pixel defining layer 304, a conductive unit 305, and an eave structure 306.
The first electrode 301 is located above the driving layer 20, and a material of the first electrode 301 may be a conductive metal oxide, such as Indium Tin Oxide (ITO), or the like.
The first electrode 301 may be an anode or a cathode, and the polarities of the first electrodes 301 of adjacent sub-pixels are different, for example, if the first electrode 301 of the sub-pixel a is an anode, the first electrode 301 of another sub-pixel adjacent to the sub-pixel a is a cathode; if the first electrode 301 of the sub-pixel a is a cathode, the first electrode 301 of another sub-pixel adjacent to the sub-pixel a is an anode.
The pixel defining layer 304 is disposed around each first electrode 301. The material of the pixel defining layer 304 may be organic polyimide, or may be inorganic SiNx, siOx, siOxNx, or the like.
The conductive unit 305 is located above the pixel defining layer 304 and is used for outputting a fixed voltage to the second electrode 303 to reduce a voltage drop generated by the wiring of the second electrode 303, and the material of the conductive unit 305 may be copper, silver, or other metals.
The eave structure 306 is located on one side, away from the first electrode 301, above the conductive unit 305, and the eave structure 306 is used for protecting the overlapping area of the first electrode 301 and the conductive unit 305 during maskless evaporation, so that the overlapping area of the first electrode 301 and the conductive unit 305 is not affected by etching liquid during photoetching patterns.
The light emitting layer 302 covers the first electrode 301, the pixel defining layer 304, the conductive unit 305, and the eave structure 306, and the light emitting layer 302 may include light emitting materials of various colors such as red, green, blue, and the like.
The second electrode 303 is covered over the light emitting layer 302, one end of the second electrode 303 away from the eave structure 306 is overlapped with the conductive unit 305 of the adjacent sub-pixel, the material of the second electrode 303 may be a metal material, such as Al (aluminum), au (gold), ag (silver), mg (magnesium), and the like, and the material of the second electrode 303 may also be a transparent conductive metal oxide, and the like.
Since the polarity of the conductive unit 305 and the first electrode 301 of each target subpixel 30 is the same, the first electrode 301 and the conductive unit 305 may be controlled using one signal line, i.e., the first electrode 301 and the conductive unit 305 may be connected to one signal line to reduce routing in the display panel.
The first electrode 301 corresponds to a conventional display area with the light emitting layer 302 and the second electrode 303 over the first electrode 301, and the conductive unit 305 corresponds to a new display area with the light emitting layer 302 and the second electrode 303 over the conductive unit 305.
Since the end of the second electrode 303 of the target sub-pixel 30 far from the eave structure 306 is overlapped with the conductive unit 305 of the adjacent sub-pixel, in order to ensure that the newly appearing area of the target sub-pixel 30 can emit light normally, the conductive units 305 of the adjacent sub-pixels may not be connected.
The encapsulation layer 40 is located over the second electrode 303 and the eave structure 306, and the material of the encapsulation layer 40 may include silicon nitride, silicon oxynitride, or a combination thereof.
Fig. 2 is a top view of a pixel structure according to an embodiment of the present application, and as shown in fig. 2, a pixel structure may include 3 sub-pixels, for example, a red sub-pixel, a blue sub-pixel, and a green sub-pixel.
The 3 sub-pixels are all target sub-pixels 30, and the light emission color of the new display area of each target sub-pixel 30 may be the same as the light emission color of the conventional display area, and the new display area is the compensation area of the conventional display area. For each target sub-pixel 30, under the condition that the area of the total display area of the target sub-pixel 30 is unchanged, the area of the traditional display area can be set smaller due to the addition of the new display area, so that the total area occupied by the target sub-pixel 30 is smaller, more sub-pixels can be set for the display panel with the same specification to form more pixels, and the resolution of the display panel is improved.
It will be appreciated that when the new display area of the target subpixel 30 is used as the compensation area of the conventional display area (i.e., the new display area of the target subpixel 30 is the same as the light emission color of the conventional display area), each subpixel in the pixel structure may be compensated as shown in fig. 2 (i.e., each subpixel in the pixel structure is the target subpixel 30), or only a portion of the subpixels in the pixel structure may be compensated as shown in fig. 3 (i.e., only a portion of the subpixels in the pixel structure are the target subpixels 30).
Fig. 4 is a top view of still another pixel structure provided in the embodiment of the present application, as shown in fig. 4, one pixel structure may include two sub-pixels, where the two sub-pixels may be target sub-pixels, or only one sub-pixel may be target sub-pixel. The present embodiment will be described by taking two sub-pixels as target sub-pixels as examples.
The new display areas of the two sub-pixels have the same emission color and are different from the emission colors of the conventional display areas of the two sub-pixels. The conventional display area and the new display area of the two sub-pixels now constitute one pixel. Therefore, only the corresponding areas of the original two sub-pixels are occupied to form one pixel, more pixels can be formed by the display panel with the same specification, and the resolution of the display panel is improved.
The new display areas of the two sub-pixels may be arranged around the conventional display area as shown in the pixel structure a, i.e. around the conventional display area, or may be arranged in certain orientations of the conventional pixels as shown in the pixel structures B and C.
Since the light-emitting rate of red light is relatively high under the same light intensity, the new display areas of the two sub-pixels can emit red light, and the conventional display areas of the two sub-pixels can emit blue light and green light respectively, so as to ensure the display effect of the display panel.
It will be appreciated that the new display area of the two sub-pixels may also emit green light, and the conventional display areas corresponding to the two sub-pixels may emit blue light and red light, respectively; the new display areas of the two sub-pixels may also emit blue light, and the conventional display areas corresponding to the two sub-pixels may emit red light, green light, etc., respectively.
Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present application, as shown in fig. 5,
the lower end surface of the conductive unit 305 of the target subpixel 30 is close to the edge of the first electrode 301, and may be flush with the upper end surface of the pixel defining layer 304 close to the edge of the first electrode 301, so as to sufficiently multiplex the conductive unit 305 to make the new display area of the target subpixel 30 larger, thereby improving the aperture ratio of the new display area of the target subpixel 30.
Since the polarity of the conductive unit 305 of the target subpixel 30 and the polarity of the first electrode 301 are the same, the conductive unit 305 of the target subpixel 30 may cover a side of the upper surface of the pixel defining layer 304 adjacent to the first electrode 301 and contact the first electrode 301, so that a region a corresponding to a side (typically, inclined) of the pixel defining layer 304 adjacent to the first electrode 301 can also be displayed, thereby further improving the aperture ratio of a new display region of the target subpixel 30.
Fig. 6 is a partial top view of a display panel according to an embodiment of the present application, and as shown in fig. 6, electrode signals (including a cathode signal and an anode signal) of each target subpixel in the display panel are respectively transmitted through a signal line 1 and a signal line 2. The signal lines connected to the first electrodes 301 of adjacent target sub-pixels are different (signal lines 1 and 2 are connected, respectively), and the signal lines connected to the second electrodes 303 of corresponding adjacent target sub-pixels are also different.
Since the conductive unit 305 of the target sub-pixel and the first electrode 301 have the same polarity, the same signal line can be connected, and since the light emitting layers 302 of the sub-pixels are separated by the conductive unit, the crosstalk phenomenon caused by the bright-on voltage difference between the light emitting units of different colors does not occur when the screen is displayed with low gray scale.
Fig. 7 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present application, and as shown in fig. 7, the method for manufacturing a display panel according to an embodiment of the present application may include the following steps:
s110, forming a driving layer on the substrate base plate, and forming a first electrode of each sub-pixel on the driving layer.
Specifically, the driving layer 20 may be formed on the substrate base 10 first, and then the first electrode 301 of each sub-pixel may be formed on the driving layer 20 through a sputtering process.
S120, forming a pixel definition layer around each first electrode, forming a boundary conductive layer above the pixel definition layer, and forming an eave structure above the boundary conductive layer.
Specifically, a pixel defining layer 304 may be formed around each first electrode 301 using a plasma enhanced chemical vapor deposition, sputtering, atomic layer deposition, or the like, and then a boundary conductive layer may be formed over the pixel defining layer 304, which may include a plurality of conductive units 305, and an eave structure 306 may be formed over each conductive unit 305.
And S130, forming a light-emitting layer above the first electrode, the pixel definition layer, the conductive unit and the eave structure, and forming a second electrode of each sub-pixel above the light-emitting layer.
Specifically, the light emitting layer 302 and the second electrode 303 may be sequentially formed at the area where the first electrode 301, the pixel defining layer 304, the conductive unit 305, and the eave structure 306 are not covered by an evaporation process.
And S140, forming an encapsulation layer above the second electrode and the eave structure.
Specifically, the encapsulation layer 40 may be formed on the surfaces of the second electrode 303 and the eave structure 306 by using a plasma enhanced chemical vapor deposition, sputtering, atomic layer deposition, or the like.
The technical scheme provided by the embodiment of the application comprises a plurality of sub-pixels, wherein the plurality of sub-pixels comprise at least one target sub-pixel, and the target sub-pixel comprises a first electrode, a light-emitting layer, a second electrode, a pixel definition layer, a conductive unit and an eave structure. The pixel definition layer is arranged around the first electrode, the conductive unit is arranged above the pixel definition layer, and the eave structure is arranged on one side, away from the first electrode, above the conductive unit; the light-emitting layer is covered above the first electrode, the pixel definition layer, the conductive unit and the eave structure; the second electrode covers the upper part of the light-emitting layer, and one end of the second electrode, which is far away from the eave structure, is overlapped with the conductive units of the adjacent sub-pixels; the conductive elements of adjacent sub-pixels are not connected. In the above technical solution, the conductive unit of the target subpixel is multiplexed, and a new display area of the target subpixel is formed with the light emitting layer and the second electrode above the conductive unit. The new display area can be a compensation area of a traditional display area of the target sub-pixel (at this time, the light-emitting color of the new display area is the same as that of the traditional display area), so that the area of the traditional display area of the target sub-pixel can be reduced under the condition that the area of the display area corresponding to the target sub-pixel is unchanged, the occupied total area of the target sub-pixel is reduced, more sub-pixels can be arranged on a display panel with the same specification to form more pixels, and the resolution of the display panel is improved; the light-emitting color of the new display area may be different from that of the corresponding conventional display area, and at this time, the new display area of the target sub-pixel may be formed into a pixel with the conventional display area of the conventional display area and the conventional display area of an adjacent sub-pixel (for example, the conventional display area of the target sub-pixel emits green light, the new display area emits red light, the conventional display area of an adjacent sub-pixel of the target sub-pixel emits blue light, and the above 3 display areas form a pixel), so that only the corresponding areas of the original two sub-pixels are occupied to form a pixel, so that the display panel with the same specification may form more pixels, and the resolution of the display panel is improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
In addition, the dimensional relationships between the components in the drawings are merely illustrative, and do not reflect actual dimensional relationships between the components.
In the description of the present application, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, 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.
In the description of the present application, unless otherwise indicated, "/" means that the associated object is an "or" relationship, e.g., a/B may represent a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.
Also, in the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of the following" or similar expressions thereof, means any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A pixel structure, comprising: a plurality of sub-pixels including at least one target sub-pixel including a first electrode, a light emitting layer, a second electrode, a pixel defining layer, a conductive unit, and an eave structure;
the pixel definition layer is arranged around the first electrode, the conductive unit is positioned above the pixel definition layer, and the eave structure is positioned on one side, away from the first electrode, above the conductive unit;
the light-emitting layer covers the first electrode, the pixel definition layer, the conductive unit and the eave structure;
the second electrode covers the upper part of the light-emitting layer, and one end of the second electrode, which is far away from the eave structure, is overlapped with the conductive units of the adjacent sub-pixels;
the conductive elements of adjacent sub-pixels are not connected.
2. The pixel structure according to claim 1, wherein an edge of the lower end surface of the conductive unit near the first electrode is flush with an edge of the upper end surface of the pixel defining layer near the first electrode.
3. The pixel structure according to claim 1, wherein the conductive unit covers a side of the upper surface of the pixel defining layer near the first electrode and is in contact with the first electrode.
4. The pixel structure according to claim 1, wherein the pixel structure comprises three sub-pixels, the light emitting layer over the conductive unit of the target sub-pixel has the same light emitting color as the light emitting layer over the first electrode of the target sub-pixel, and the three sub-pixels comprise a red sub-pixel, a blue sub-pixel, and a green sub-pixel.
5. The pixel structure according to claim 1, wherein the pixel structure includes two sub-pixels, each of which is a target sub-pixel, and light emission colors of light emitting layers over first electrodes of the two sub-pixels are different;
the light emitting color of the light emitting layer over the conductive unit of the two sub-pixels is different from the light emitting color of the light emitting layer over the first electrode of the two sub-pixels.
6. The pixel structure according to claim 5, wherein the light emitting layer over the conductive units of the two sub-pixels has a red color, and the light emitting layer over the first electrodes of the two sub-pixels has a green color and a blue color, respectively.
7. The pixel structure according to claim 1, wherein the first electrode and the conductive unit are connected to the same signal line.
8. The pixel structure according to any one of claims 1-7, wherein each sub-pixel in the pixel structure comprises the first electrode, the light emitting layer, the second electrode, the pixel defining layer, the conductive element and the eave structure.
9. A display panel, comprising: a substrate, a driving layer, an encapsulation layer, and a plurality of pixel structures as claimed in any one of claims 1 to 8, disposed from bottom to top, the pixel structures being located between the driving layer and the encapsulation layer.
10. A method for manufacturing a display panel according to claim 9, wherein the method comprises:
forming a driving layer on a substrate base plate, and forming a first electrode of each sub-pixel on the driving layer;
forming a pixel defining layer around each first electrode, and forming a boundary conductive layer above the pixel defining layer, wherein the boundary conductive layer comprises a conductive unit corresponding to each sub-pixel;
forming an eave structure above each conductive unit;
forming a light emitting layer over the first electrode, the pixel defining layer, the conductive unit, and the eave structure, and forming a second electrode of each of the sub-pixels over the light emitting layer;
and forming an encapsulation layer above the second electrode and the eave structure.
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