CN110783481A

CN110783481A - Display panel, display screen and display device

Info

Publication number: CN110783481A
Application number: CN201910818023.6A
Authority: CN
Inventors: 辛征航; 张萌; 田雪姣
Original assignee: Kunshan Guoxian Photoelectric Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd; Kunshan Guoxian Photoelectric Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-02-11

Abstract

The invention discloses a display panel, a display screen and a display device, wherein the display panel comprises a substrate; a plurality of first electrodes formed on the substrate; the display panel comprises a plurality of pixel areas and a plurality of partition areas, a light-emitting function layer is arranged in an opening of each pixel area, the partition areas are provided with a plurality of isolation columns and at least one isolation groove, the isolation grooves are used for partitioning second electrodes between every two adjacent pixel areas, and the extending direction of the first electrodes is intersected with the extending direction of the second electrodes. According to the technical scheme, the problem that particles are easily generated due to friction between the mask and the isolation column is solved, the manufacturing process of the display panel is facilitated to be simplified, and the packaging effect of the packaging layer in the display panel is improved.

Description

Display panel, display screen and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display panel, a display screen and a display device.

Background

With the rapid development of electronic devices, the requirements of users on screen occupation ratio are higher and higher, so that the comprehensive screen display of the electronic devices is concerned more and more in the industry.

Traditional electronic equipment such as cell-phone, panel computer etc. owing to need integrate such as leading camera, earphone and infrared sensing element etc. so the accessible is slotted (Notch) on the display screen, sets up camera, earphone and infrared sensing element etc. in the fluting region, but the fluting region is not used for the display screen, like the bang screen among the prior art, or adopts the mode of trompil on the screen, to the electronic equipment who realizes the function of making a video recording, external light accessible screen on trompil department get into the photosensitive element who is located the screen below. However, these electronic devices are not all full-screen in the true sense, and cannot display in each area of the whole screen, for example, the camera area cannot display the picture.

Disclosure of Invention

The invention provides a display panel, a display screen and a display device, which solve the problem that particles are easily generated due to friction between a mask and an isolation column, are beneficial to simplifying the manufacturing process of the display panel and improve the packaging effect of a packaging layer in the display panel.

In a first aspect, an embodiment of the present invention provides a display panel, including:

a substrate;

a plurality of first electrodes formed on the substrate;

the display panel comprises a plurality of pixel areas and a plurality of partition areas, a light-emitting function layer is arranged in an opening of each pixel area, the partition areas are provided with a plurality of isolation columns and at least one isolation groove, the isolation grooves are used for partitioning second electrodes between every two adjacent pixel areas, and the extending direction of the first electrodes is intersected with the extending direction of the second electrodes.

Furthermore, the pixel regions and the partition regions are alternately arranged along a first direction, and the isolation columns and the isolation groove edges are arranged along a second direction

And the second direction extends, in the partition area, the isolation columns and the isolation grooves are alternately arranged along the first direction, and the first direction is intersected with the second direction.

Further, the isolation column comprises a first end close to the substrate and a second end far away from the substrate, and the area of the first end of the isolation column is smaller than that of the second end of the isolation column along the direction parallel to the display panel;

preferably, an included angle between a side wall of the isolation pillar and a plane parallel to the display panel is less than or equal to 75 °;

preferably, an included angle between the sidewall of the pillar and a plane parallel to the display panel is greater than or equal to 25 °.

Further, the isolation slot includes a first end proximate to the substrate and a second end distal to the substrate; preferably, the width of the first end of the isolation groove is greater than or equal to 1 micron;

preferably, the width of the first end of the isolation trench is 100 μm or less.

Further, the display panel further includes:

a pixel defining layer on the first electrode, the pixel defining layer including a first end adjacent to the substrate and a second end far from the substrate, the first end of the pixel defining layer having an area larger than that of the second end of the pixel defining layer in a direction parallel to the display panel;

the isolation column and the isolation groove are both positioned on the pixel definition layer, an opening is formed in the pixel definition layer corresponding to the pixel region, and the light-emitting function layer is arranged in the opening of the pixel definition layer;

preferably, the material constituting the pixel defining layer includes a positive photoresist, and the material constituting the spacer pillars includes a negative photoresist.

Further, along a direction perpendicular to the display panel, a ratio of the thickness of the isolation pillar to the thickness of the pixel defining layer is greater than or equal to 1:2 and less than or equal to 1: 1.

Further, the isolation column is arranged in contact with the first electrode;

preferably, the thickness of the isolation pillar is greater than or equal to 1.2 micrometers in a direction perpendicular to the display panel;

preferably, the thickness of the isolation pillars is less than or equal to 2 micrometers in a direction perpendicular to the display panel.

Further, along the extending direction of the isolation pillars, the vertical projection of the isolation pillars on the substrate changes continuously or discontinuously along the width perpendicular to the extending direction;

preferably, at least one side of the vertical projection close to the pixel region is nonlinear;

preferably, the non-linear shape includes at least one of a broken line segment, an arc shape, and a wave shape;

preferably, the display panel is a light-transmissive display panel;

preferably, the light transmittance of the display panel is greater than 15%;

preferably, the first electrode and the second electrode are light-transmitting electrodes;

preferably, a material constituting the first electrode is ITO or IZO, and a material constituting the second electrode is ITO, IZO, or a light-transmissive metal material.

In a second aspect, an embodiment of the present invention further provides a display screen, including at least one first display area, where the first display area is provided with the display panel according to the first aspect;

the display screen further comprises a second display area, the display panel arranged in the first display area is a PMOLED display panel, the display panel arranged in the second display area is an AMOLED display panel, and the display panel arranged in the first display area is a light-transmitting display panel;

preferably, the second display area is disposed completely or partially around the first display area;

preferably, the thickness of the display panel arranged in the first display area is the same as that of the display panel arranged in the second display area;

preferably, the display panel arranged in the first display area and the display panel arranged in the second display area share a substrate and an encapsulation layer, and the light-emitting functional layer in the display panel arranged in the first display area and the light-emitting functional layer in the display panel arranged in the second display area are manufactured simultaneously;

preferably, the thickness of the second electrode in the display panel disposed in the first display region is smaller than the thickness of the second electrode in the display panel disposed in the second display region.

In a third aspect, an embodiment of the present invention further provides a display device, including:

an apparatus body having a device region;

the display screen of the second aspect, the display screen being overlaid on the device body;

the device area is located below a first display area of the display screen, and a photosensitive device for collecting light rays through the first display area is arranged in the device area.

The embodiment of the invention provides a display panel, a display screen and a display device, wherein the display panel comprises a substrate, a plurality of first electrodes formed on the substrate and a plurality of isolation columns positioned on one side of the first electrodes far away from the substrate, the display panel comprises a plurality of pixel areas and a plurality of partition areas, a light-emitting function layer is arranged in an opening of each pixel area, the partition areas are provided with a plurality of isolation columns and at least one isolation groove, the isolation grooves are used for partitioning second electrodes between two adjacent pixel areas, and the extension direction of the first electrodes is intersected with the extension direction of the second electrodes.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of another display panel according to an embodiment of the invention;

FIG. 4 is a schematic diagram of a process for fabricating the display panel with the structure shown in FIG. 3;

fig. 5 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;

fig. 6 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the present invention;

fig. 7 is a schematic top view of an isolation pillar according to an embodiment of the present invention;

FIG. 8 is a schematic top view of another isolation pillar according to an embodiment of the present invention;

fig. 9 is a schematic top view of a first electrode according to an embodiment of the present invention;

fig. 10 is a schematic top view of a display screen according to an embodiment of the present invention;

fig. 11 is a schematic top view of a display screen according to an embodiment of the present invention;

fig. 12 is a schematic top view of a display screen according to an embodiment of the present invention;

fig. 13 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention;

fig. 14 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention;

fig. 15 is a schematic cross-sectional view illustrating a display panel according to an embodiment of the invention;

fig. 16 is a schematic top view of a display device according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As background art, in conventional electronic devices such as mobile phones and tablet computers, since front-facing cameras, earphones, infrared sensing elements, and the like need to be integrated, a slot (Notch) is formed in a display screen, and the cameras, the earphones, the infrared sensing elements, and the like are disposed in the slot area. However, the slotted region is not used for displaying pictures, such as a bang screen in the prior art, or a hole is formed in the screen, and for an electronic device implementing a camera function, external light can enter the photosensitive element located below the screen through the hole in the screen. However, these electronic devices are not all full-screen in the true sense, and cannot display in each area of the whole screen, for example, the camera area cannot display the picture.

In view of the above problems, the technical staff have developed a display screen, which realizes the full-screen display of the electronic device by setting a transparent display panel in a slotted area. The OLED may be classified into a PMOLED (Passive Matrix OLED) and an AMOLED (Active Matrix OLED) according to a driving method. Taking the PMOLED as an example, the electrodes of the same nature of the display units in the same row of the PMOLED display array are shared, and the electrodes of the same nature of the display units in the same column are also shared.

In general, the PMOLED display panel requires a photolithography process to form a spacer between two adjacent rows or two columns to prevent a short circuit between cathodes of the two adjacent rows or two columns. The inventor researches and discovers that in the process of forming the cathode layer by sputtering, the cathode layer can be formed on the side wall of the isolation column due to the fact that the moving direction of metal atoms is not fixed, the formed cathode layer and the side wall of the isolation column are good in adhesion and not prone to falling off, therefore, the cathode layer on the isolation column and the cathode layer on the light emitting layer are connected into a whole, and then adjacent row or column cathodes are short-circuited, the blocking difficulty of the cathodes is large, and the full-screen normal display is not facilitated.

To solve the above problems, the present invention provides a display panel, which can preferably solve the above problems.

Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view of the display panel according to the embodiment of the present invention. With reference to fig. 1 and fig. 2, the display panel includes a substrate 1, a plurality of first electrodes 2 formed on the substrate 1, and a plurality of pillars 3 located on a side of the first electrodes 2 away from the substrate 1, the display panel includes a plurality of pixel regions a1 and a plurality of partition regions a2, a light emitting function layer 4 is disposed in an opening of the pixel region a1, the partition region a2 is provided with a plurality of pillars 3 and at least one partition groove 5, the partition groove 5 is used for partitioning a second electrode 6 between two adjacent pixel regions a1, an extending direction of the first electrode 2 intersects an extending direction of the second electrode 6, where the extending direction of the first electrode 2 and the extending direction of the second electrode 6 are exemplarily set to be perpendicular to each other.

Specifically, with reference to fig. 1 and fig. 2, the isolation groove 5 between the isolation pillars 3 isolates the second electrode 6 between two adjacent pixel regions a1, so as to avoid short circuit of the second electrode 6 between two adjacent rows or two columns, and the extending direction of the first electrode 2 intersects with the extending direction of the second electrode 6, for example, the extending direction of the first electrode 2 is perpendicular to the extending direction of the second electrode 6, the first electrode 2 may be set as an anode and the second electrode 6 as a cathode, or the first electrode 2 may be set as a cathode and the second electrode 6 as an anode, the first electrode 2 and the second electrode 6 form a matrix array, and pixels in the matrix array in a scanning manner are operated in a short pulse mode, so that each pixel is instantly highlighted, and a PMOLED display panel is implemented, which is beneficial to implement a full-screen.

Specifically, with reference to fig. 1 and fig. 2, the isolation groove 5 between the isolation pillars 3 is used to separate the second electrode 6 between the adjacent pixel regions a1, compared with the case that the isolation groove 5 between the adjacent pixel regions a1 is directly used to separate the second electrode 6 between the adjacent pixel regions a1, the surface flatness of the isolation pillars 3 and the isolation grooves 5 alternately arranged in the isolation regions a2 is improved before the light-emitting functional layer 4 is manufactured by screening, and thus the flatness of the surface of the display panel when the light-emitting functional layer 4 is manufactured by screening is improved, the problem that particles are easily generated due to friction between the mask and the isolation pillars 3 is solved, and the isolation pillars 3 can be used as a support layer (SPC) for supporting the mask, which is beneficial to simplifying the manufacturing process of the display panel.

The substrate may be a hard substrate, such as glass, or a flexible substrate, such as PI (polyimide), and accordingly, the encapsulation layer may be a hard material, such as glass, or a thin film encapsulation layer including an inorganic layer and an organic layer disposed at intervals.

Alternatively, with reference to fig. 1 and 2, the pixel regions a1 and the partition regions a2 may be arranged alternately along the first direction XX ', the isolation pillars 3 and the isolation trenches 5 extend along the second direction YY ', and within the partition region a2, the isolation pillars 3 and the isolation trenches 5 are arranged alternately along the first direction XX ', and the first direction XX ' intersects with the second direction YY '. Specifically, with reference to fig. 1 and fig. 2, the pixel regions a1 and the partition regions a2 are arranged alternately along the first direction XX ', the isolation pillars 3 and the isolation trenches 5 extend along the second direction YY ', and in the partition region a2, the isolation pillars 3 and the isolation trenches 5 are arranged alternately along the first direction XX ', so that the second electrodes 6 formed by partitioning the isolation trenches 5 extend along the second direction YY ' and are arranged along the first direction XX ', and the second electrodes 6 arranged along the first direction XX ' are insulated from each other by the isolation trenches 5 to form a PMOLED display panel with the first electrodes 2 extending along the first direction XX ', so as to implement full-screen display.

Fig. 2 exemplarily shows that only two isolation pillars 3 and one isolation trench 5 partitioned by two isolation pillars 3 are disposed in the partition region a2, or as shown in fig. 3, a plurality of isolation trenches 5 are disposed in the partition region a2, fig. 3 exemplarily shows that the partition region a2 includes three isolation pillars 3 and two isolation trenches 5 partitioned by three isolation pillars 3, and in the partition region a2, the isolation pillars 3 and the isolation trenches 5 are alternately arranged along the first direction XX ', so that all the isolation trenches 5 in one partition region a2 are used for partitioning the second electrodes 6 located between the pixel regions a1 on both sides of the partition region a2 along the first direction XX ', so as to further reduce the probability of short circuit of the second electrodes 6 between the adjacent pixel regions a1 along the first direction XX '.

Alternatively, referring to fig. 1 to 3, the isolation pillars 3 include a first end adjacent to the substrate 1 and a second end far from the substrate 1, and an area of the first end of the isolation pillar 3 is smaller than an area of the second end of the isolation pillar 3 in a direction parallel to the display panel, the first end of the isolation pillar 3 adjacent to the substrate 1 may be understood as a lower surface of the isolation pillar 3 in fig. 2 and 3, and the second end of the isolation pillar 3 far from the substrate 1 may be understood as an upper surface of the isolation pillar 3 in fig. 2 and 3.

Specifically, with reference to fig. 1 to 3, in a direction parallel to the display panel, an area of a first end of the isolation pillar 3 adjacent to the substrate 1 is smaller than an area of a second end of the isolation pillar 3 away from the substrate 1, that is, an area of a lower surface of the isolation pillar 3 is smaller than an area of an upper surface of the isolation pillar 3, so that a cross section of the isolation pillar 3 forms an inverted trapezoid like that shown in fig. 2 and 3. If the area of the first end of the isolation pillar 3 close to the substrate 1 is larger than the area of the second end of the isolation pillar 3 far from the substrate 1 along the direction parallel to the display panel, and the cross section of the isolation pillar 3 is in a regular trapezoid shape, when the second electrode 6 is manufactured, the material forming the second electrode 6 climbs along the sidewall of the isolation pillar 3, that is, the second electrode material is also formed on the sidewall of the isolation pillar 3, so that the second electrode material on the sidewall of the isolation pillar 3 is connected with the second electrode 6 on the light-emitting functional layer 4 into a whole, and further the second electrode 6 between the adjacent pixel regions a1 arranged along the first direction XX' is short-circuited, thereby affecting the normal display of the display panel. The area of the first end of the isolation column 3 close to the substrate 1 is smaller than the area of the second end of the isolation column 3 far away from the substrate 1 along the direction parallel to the display panel, so that when the second electrode 6 is formed, the material of the second electrode 6 is difficult to form in the area a in fig. 2, the separation effect of the second electrode 6 along the first direction XX 'is optimized, and the probability of short circuit of the second electrode 6 between the adjacent pixel areas a1 arranged along the first direction XX' is reduced.

Illustratively, the material for forming the isolation pillars 3 may include a negative photoresist, and the negative photoresist is used to facilitate forming the isolation pillars 3 with an area close to the first end of the substrate 1 smaller than an area far away from the second end of the substrate 1, for example, the isolation pillars 3 with the inverted trapezoid cross section are formed to improve the effect of the isolation pillars 3 on separating the second electrodes 6 between the adjacent pixel regions a1, and the negative photoresist has good insulation property and is easy to shape, thereby facilitating one-time forming of the isolation pillars 3 with the inverted trapezoid cross section, and reducing the difficulty of the process for forming the isolation pillars 3 with the inverted trapezoid cross section on the display panel.

It should be noted that fig. 2 and fig. 3 only exemplarily show that the cross section of the isolation pillar 3 is in an inverted trapezoid, which is influenced by illumination uniformity, and the sidewall of the isolation pillar 3 may also be in an arc shape, and the embodiment of the present invention does not limit the specific shape of the isolation pillar 3, so as to ensure that the area of the first end of the isolation pillar 3 close to the substrate 1 is smaller than the area of the second end of the isolation pillar 3 far from the substrate 1.

Preferably, with reference to fig. 1 to 3, an included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel may be set to be 75 ° or less, an included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel determines the inclination degree of the side wall of the isolation pillar 3, and the smaller the included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel is, the larger the area of the region a is, the more favorable the effect of the isolation pillar 3 on the second electrode 6 between the adjacent pixel regions a1 arranged along the first direction XX' is, preferably, the included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel is set to be 25 ° or more, the β between the side wall of the isolation pillar 3 and the plane parallel to the display panel determines the inclination degree of the side wall of the isolation pillar 3, the too small included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel may increase the difficulty of the manufacturing process of the pillar, and the included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel is set to be equal to or more, thereby.

Alternatively, referring to fig. 1 to 3, the isolation trench 5 includes a first end adjacent to the substrate 1 and a second end far from the substrate 1, the first end of the isolation trench 5 adjacent to the substrate 1 may be understood as a lower surface of the isolation trench 5 in fig. 2 and 3, and the second end of the isolation trench 5 far from the substrate 1 may be understood as an upper surface of the isolation trench 5 in fig. 2 and 3. In particular, referring to fig. 1 to 3, since the area of the first end of the spacers 3 adjacent to the substrate 1 is smaller than the area of the second end of the spacers 3 away from the substrate 1 in the direction parallel to the display panel, that is, the area of the lower surface of the pillars 3 is smaller than the area of the upper surface of the pillars 3, so that the cross-section of the pillars 3 forms an inverted trapezoid like that shown in fig. 2 and 3, and the pillars 3 and the isolation grooves 5 are alternately arranged in the first direction XX', so that the area of the first end of the isolation trench 5 adjacent to the substrate 1 is larger than the area of the second end of the isolation trench 5 away from the substrate 1 along the direction parallel to the display panel, i.e., the area of the adjacent lower surface of the isolation trench 5 is larger than the area of the upper surface of the isolation trench 5, so that a region a is formed between the isolation pillars 3, when the second electrode 6 is formed, it is difficult to form the second electrode 6 material in the region a, and thus the region a is used to realize the partition of the second electrode 6 between the adjacent pixel regions a1 arranged along the first direction XX'.

With reference to fig. 1 and 2, it may be configured that the width of the first end of the isolation trench 5 is greater than or equal to 1 micrometer, taking the cross section of the first end of the isolation trench 5, that is, the lower surface of the isolation trench 5, is a circular cross section as an example, the width of the first end of the isolation trench 5 refers to the diameter of the circular cross section, and if the cross section of the first end of the isolation trench 5 is a non-circular cross section, the width of the first end of the isolation trench 5 is a distance between two points farthest from the non-circular cross section, and the too small width of the first end of the isolation trench 5 is not favorable for reducing an included angle β between a sidewall of the isolation pillar 3 and a plane parallel to the display panel to optimize a blocking effect of the isolation pillar 3 on the second electrode 6 between the adjacent pixel regions a1 arranged along the first direction XX', and may be favorable for reducing an included angle β between the sidewall of the isolation pillar 3 and a plane parallel to the display panel by increasing the width of the first end of the isolation trench 5, so as to further optimize a blocking effect of the isolation pillar 3 on the second electrode between the.

Preferably, the width of the first end of the isolation groove 5 is set to be less than or equal to 100 micrometers, and an excessively large width of the first end of the isolation groove 5 may cause a reduction in the flatness of the region where the isolation pillar 3 is located, i.e., the isolation region a2, which is not favorable for improving the problem of particles generated by friction between the tensioned mesh and the isolation pillar 3, and improving the problem of poor encapsulation effect of the encapsulation layer of the display panel.

Alternatively, with reference to fig. 1 to 3, the display panel may further include a pixel defining layer 7 disposed on the first electrode 2, the pixel defining layer 7 includes a first end adjacent to the substrate 1 and a second end away from the substrate 1, an area of the first end of the pixel defining layer 7 is larger than an area of the second end of the pixel defining layer 7 along a direction parallel to the display panel, the first end of the pixel defining layer 7 adjacent to the substrate 1 may be understood as a lower surface of the pixel defining layer 7 in fig. 2 and 3, and the second end of the pixel defining layer 7 away from the substrate 1 may be understood as an upper surface of the pixel defining layer 7 in fig. 2 and 3. The isolation columns 3 and the isolation grooves 5 are located on the pixel definition layer 7, an opening is formed in the pixel definition layer 7 corresponding to the pixel area a1, and the light emitting function layer 4 is arranged in the opening of the pixel definition layer 7.

Specifically, referring to fig. 1 to 3, the isolation pillars 3 and the isolation trenches 5 are located on the pixel defining layer 7, the pixel defining layer 7 is formed with an opening corresponding to the pixel region a1, and the area of the first end of the pixel defining layer 7 is larger than the area of the second end of the pixel defining layer 7 in the direction parallel to the display panel, that is, the area of the lower surface of the pixel defining layer 7 is larger than the area of the upper surface of the pixel defining layer 7, so that the pixel defining layer 7 for disposing the isolation pillars 3 and the isolation trenches 5 has a regular trapezoid shape as shown in fig. 2 and 3. Illustratively, the material constituting the pixel defining layer 7 may be provided to include a positive photoresist, which facilitates forming the pixel defining layer 7 with an area near one end of the substrate 1 larger than an area far from a second end of the substrate 1, for example, forming the pixel defining layer 7 with a trapezoidal cross section.

With reference to fig. 1 to 3, a light-emitting functional layer 4 is disposed in an opening of a pixel defining layer 7, and the pixel defining layer 7 functions to define an area where the light-emitting functional layer 4 is located in one pixel, so that when the light-emitting functional layer 4, for example, an OLED material, is formed in the opening of the pixel defining layer 7 by evaporation, the pixel defining layer can be used to define that the OLED material is formed in the opening of the pixel defining layer 7, it should be noted that fig. 2 and 3 only schematically illustrate that a surface of the light-emitting functional layer 4 away from a substrate 1 is flush with a surface of a spacer 3 away from the substrate 1, and in an actual manufacturing process of a display panel, a surface of the light-emitting functional layer 4 away from the substrate 1 is not higher than a surface of the pixel defining layer 7 away from the substrate 1, that is, i.e., an.

Fig. 4 is a schematic view of a manufacturing process of the display panel with the structure shown in fig. 3. With reference to fig. 1 to 4, after the first electrode 2 is fabricated on the substrate 1, a layer of positive photoresist may be formed on the first electrode 2, the positive photoresist is exposed and developed, so that the positive photoresist forms a positive trapezoidal pixel defining layer 7, then an entire layer of negative photoresist 71 is formed on the pixel defining layer 7, the upper surface of the negative photoresist 71 is higher than the upper surface of the pixel defining layer 7, the negative photoresist 71 is exposed and developed, so that a plurality of inverted trapezoidal isolation pillars 3 are formed on the pixel defining layer 7, then a light emitting functional layer 4 is formed by evaporation, a mask is disposed, openings of the mask respectively correspond to the pixel regions a1 separated by the isolation pillars 3, so that the light emitting functional layer 4 is formed in the openings of the pixel defining layer 7 and the openings of the pixel regions a1 separated by the isolation pillars 3, then a second electrode 6 is fabricated, and due to the disposition of the isolation trenches 5, the second electrodes 6 between the adjacent pixel regions a1 arranged along the first direction XX' are blocked to realize a PMOLED display panel, thereby realizing a full-screen display.

It should be noted that fig. 2 to 4 only exemplarily show that the cross section of the pixel defining layer 7 between the adjacent pixel regions a1 is in a regular trapezoid shape, which is influenced by illumination uniformity, and the sidewall of the pixel defining layer 7 between the adjacent pixel regions a1 may also be in an arc shape, and the embodiment of the present invention does not limit the specific shape of the pixel defining layer 7 between the adjacent pixel regions a1, and it is sufficient to ensure that the area of the first end of the pixel defining layer 7 adjacent to the substrate 1 is larger than the area of the second end of the pixel defining layer 7 away from the substrate 1.

Alternatively, in combination with fig. 1 to 4, the ratio of the thickness d1 of the isolation pillar 3 to the thickness d2 of the pixel defining layer 7 may be set to be 1:2 or more and 1:1 or less in a direction perpendicular to the display panel.

Specifically, referring to fig. 1 to 4, in the direction perpendicular to the display panel, the too small thickness of the isolation pillars 3 may cause the step height formed in the a region to be too small, reducing the isolation effect of the isolation grooves 5 between the isolation pillars 3 on the second electrodes 6 between the adjacent pixel regions a 1. In addition, the area b is an area where the isolation pillars 3 affect the size of the light-emitting functional layer 4, and along a direction perpendicular to the display panel, the area of the area b is increased due to the excessive thickness of the isolation pillars 3, so that the area b occupies more of the area where the light-emitting functional layer 4 is located, the light-emitting area of the pixel area a1 is affected, and the improvement of the resolution of the display panel is not facilitated.

Fig. 5 is a schematic cross-sectional structure view of another display panel according to an embodiment of the present invention, which is different from the display panels with the structures shown in fig. 2 to 4, in that the display panel with the structure shown in fig. 5 is provided with the spacers 3 disposed in contact with the first electrodes 2. Specifically, with reference to fig. 1 and 5, the display panel also includes a pixel region a1 and a partition region a2, and unlike the display panel with the structure shown in fig. 2 to 4, the display panel with the structure shown in fig. 5 does not need to provide the pixel defining layer 7 in fig. 4, but directly uses the isolation pillar 3 as the pixel defining structure of the light emitting functional layer 4 in the pixel, and the partition region a2 is provided with an isolation groove 5 having an area close to the first end of the substrate 1 that is larger than an area of the partition groove at the second end away from the substrate 1, and the partition of the second electrode 6 between the adjacent pixel regions a1 is realized by using the isolation groove 5.

For example, the material forming the isolation pillars 3 may also include a negative photoresist, so that the isolation effect on the second electrode 6 between the pixel regions a1 arranged along the first direction XX' and the limiting effect on the region where the light-emitting function layer 4 in the pixel are located can be achieved by forming the isolation pillars 3 only once, the manufacturing process of the display panel is simplified, meanwhile, the flatness of the surface of the display panel when the light-emitting function layer 4 is manufactured by stretching a net is improved, the problem that particles are generated due to friction between the stretching net and the isolation pillars 3 is solved, the encapsulation effect of the encapsulation layer in the display panel is improved, and the isolation pillars 3 can be used as a support layer (SPC) for supporting a mask, which is beneficial to simplifying the manufacturing process of the display panel.

Fig. 5 exemplarily shows that only two isolation pillars 3 and one isolation trench 5 separated by two isolation pillars 3 are disposed in the partition region a2, or as shown in fig. 6, a plurality of isolation trenches 5 are disposed in the partition region a2, fig. 6 exemplarily shows that the partition region a2 includes three isolation pillars 3 and two isolation trenches 5 separated by three isolation pillars 3, and in the partition region a2, the isolation pillars 3 and the isolation trenches 5 are alternately arranged along the first direction XX ', so that all the isolation trenches 5 in one partition region a2 are used for partitioning the second electrodes 6 located between the pixel regions a1 on both sides of the partition region a2 along the first direction XX ', so as to further reduce the probability of short circuit of the second electrodes 6 between the adjacent pixel regions a1 that are tapped along the first direction XX '.

Specifically, with reference to fig. 1, 5, and 6, after the first electrode 2 is fabricated on the substrate 1, a layer of negative photoresist may be formed on the first electrode 2, the negative photoresist is exposed and developed to form a plurality of inverted trapezoidal isolation pillars 3, then a light emitting functional layer 4 is formed by evaporation, a mask is provided, openings of the mask respectively correspond to the pixel regions a1 spaced by the isolation pillars 3, so that the light emitting functional layer 4 is formed in the openings of the pixel regions a1 spaced by the isolation pillars 3, and then the second electrode 6 is fabricated, due to the arrangement of the isolation grooves 5, the second electrode 6 between adjacent pixel regions a1 arranged along the first direction XX' is isolated to implement a PMOLED display panel, thereby implementing a full-screen display. It should be noted that fig. 5 and fig. 6 only schematically illustrate that the surface of the light-emitting function layer 4 away from the substrate 1 is flush with the surface of the isolation pillar 3 away from the substrate 1, and in an actual manufacturing process of the display panel, the surface of the light-emitting function layer 4 away from the substrate 1 is not higher than the surface of the pixel definition layer 7 away from the substrate 1, that is, the upper surface of the light-emitting function layer 4 is not higher than the upper surface of the pixel definition layer 7.

Preferably, in combination with fig. 1, 5 and 6, the spacer 3 may be provided to have a thickness of 1.2 μm or more in a direction perpendicular to the display panel. Specifically, referring to fig. 1, 5 and 6, in the direction perpendicular to the display panel, the too small thickness of the isolation pillars 3 may cause the step height formed in the region a to be too small, which reduces the isolation effect of the isolation grooves 5 between the isolation pillars 3 on the second electrode 6 between the adjacent pixel regions a 1.

Preferably, in conjunction with fig. 1, 5, and 6, the spacer 3 may be provided to have a thickness of 2 μm or less in a direction perpendicular to the display panel. Specifically, referring to fig. 1, 5 and 6, the area b is an area where the isolation pillars 3 affect the size of the light-emitting functional layer 4, and along a direction perpendicular to the display panel, an area of the area b is increased due to an excessively large thickness of the isolation pillars 3, and the area b occupies more of the area where the light-emitting functional layer 4 is located, so that the light-emitting area of the pixel area a1 is affected, which is not favorable for improving the resolution of the display panel.

Similarly, with reference to fig. 1, 5 and 6, an included angle β between the sidewall of the isolation pillar 3 and the plane parallel to the display panel may be set to be 75 ° or less, an included angle β between the sidewall of the isolation pillar 3 and the plane parallel to the display panel determines the inclination degree of the sidewall of the isolation pillar 3, and the smaller the included angle β between the sidewall of the isolation pillar 3 and the plane parallel to the display panel is, the larger the area of the region a is, the better the effect of the isolation pillar 3 on the second electrode 6 between the adjacent pixel regions a1 arranged along the first direction XX' is, preferably, the included angle β between the sidewall of the isolation pillar 3 and the plane parallel to the display panel may be set to be 25 ° or more, the included angle β between the sidewall of the isolation pillar 3 and the plane parallel to the display panel determines the inclination degree of the sidewall of the isolation pillar 3, β between the sidewall of the isolation pillar 3 and the plane parallel to the display panel may increase the difficulty of the manufacturing process of the isolation pillar, and the angle β ° or more between the sidewall of the isolation pillar 3 and the plane parallel to reduce the difficulty of the manufacturing process of the display panel.

In addition, the width of the first end of the isolation trench 5 may be set to be less than or equal to 100 micrometers, and an excessively small width of the first end of the isolation trench 5 is not favorable for reducing the included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel to optimize the blocking effect of the isolation pillar 3 on the second electrode 6 in front of the adjacent pixel region a1 arranged along the first direction XX ', and the blocking effect of the isolation pillar 3 on the second electrode 6 in front of the adjacent pixel region a1 arranged along the first direction XX' may be further optimized by increasing the width of the first end of the isolation trench 5 and simultaneously reducing the included angle β between the side wall of the isolation pillar 3 and the plane parallel to the display panel.

For example, the display panel may be a transparent or transflective display panel, such as a PMOLED (Passive Matrix OLED, PMOLED, Passive organic electroluminescent diode, also called Passive organic electroluminescent diode) display panel, and since the PMOLED display panel has no TFT backplane and no metal routing, the light transmittance is high, and the requirement for high light transmittance is met.

In addition, the inventor finds that when the photosensitive element such as a camera is arranged below the display panel, the photographed image often has a problem of blurring to a large extent, which is not beneficial to realizing normal display of a full screen. The inventors have found that one reason for this problem is that: because the display screen body of the electronic equipment has the conductive wires, external light can cause complex diffraction intensity distribution when passing through the conductive wires, thereby diffraction stripes appear, and further normal work of photosensitive devices such as a camera can be influenced. For example, when a camera positioned below the transparent display area works, external light can be obviously diffracted after being routed through a wire material in the display screen, so that the picture shot by the camera is distorted.

Fig. 7 is a schematic top view of an isolation pillar according to an embodiment of the present invention. Referring to fig. 1 to 7, along the extending direction of the isolation pillars 3, the vertical projection of the isolation pillars 3 on the substrate 1 may be configured to vary continuously or discontinuously along the width perpendicular to the extending direction.

Specifically, referring to fig. 1 to 7, when external light passes through the isolation pillar 3, diffraction occurs, which is a physical phenomenon that light waves propagate away from an original straight line when encountering an obstacle. In particular, light waves propagate with varying degrees of bending and spreading after passing through obstacles such as slits, holes or discs. When external light passes through the isolation column 3, the isolation column 3 acts as an obstacle to cause diffraction when the light passes through, and the position of the diffraction stripe is determined by the maximum width of each position. Therefore, it is only necessary to ensure that the isolation column 3 has a maximum width that changes along the extending direction of the isolation column 3, where the continuous change in width means that the widths of any two adjacent positions of the isolation column 3 are different along the extending direction of the isolation column 3. The discontinuous width variation means that the widths of two adjacent positions in a partial region of the isolation column 3 are the same and the widths of two adjacent positions in the partial region are different along the extension direction of the isolation column 3. Thus, the arrangement is along the extending direction of the isolation column 3, the vertical projection of the isolation column 3 on the substrate 1 can be continuously or discontinuously changed along the width perpendicular to the extending direction, and when external light passes through the isolation column 3, the positions of diffraction fringes generated at different maximum width positions are different, so that diffraction is not obvious, and the effect of improving diffraction is achieved. In addition, the plurality of spacers 3 are arranged on the substrate 1 in parallel along the first direction XX', so that the diffraction effect of the display panel can be uniformly improved, and the purpose of improving the diffraction effect of the display panel as a whole is achieved.

Exemplarily, as shown in fig. 7, the isolation pillars 3 have a periodically varying width along the extending direction thereof, that is, the width of the isolation pillars 3 does not vary irregularly, but varies regularly and periodically, so as to reduce the difficulty of the whole manufacturing process. Illustratively, as shown in fig. 7 and 8, one width variation period of the isolation pillars 3 may be set to correspond to one pixel region a1, and a perpendicular projection of the isolation pillars on the substrate may be set to be non-linear near at least one side of the pixel region, for example, as shown in fig. 7 and 8, and the non-linear shape may include at least one of a broken line, an arc, and a wave, i.e., the non-linear shape may be formed by at least one of a broken line, an arc, and a wave.

Fig. 9 is a schematic top view of a first electrode according to an embodiment of the present invention. With reference to fig. 2 to 9, the width of the first electrodes may be continuously or intermittently varied along the extending direction of the first electrodes, and the interval between the first electrodes may be continuously or intermittently varied.

Illustratively, as shown in fig. 9, the first electrode 2 may be configured to extend in a wave shape, and the width of the first electrode 2 in the extending direction thereof is continuously or discontinuously varied, where the continuously varying width means that the width of any two adjacent positions on the first electrode 2 is different, and the discontinuously varying width means that the width of two adjacent positions in a partial region where the first electrode 1 exists is the same, and the width of two adjacent positions in the partial region is different. Illustratively, the plurality of first electrodes 2 are regularly arranged on the substrate 1, and therefore the gap between two adjacent first electrodes 2 also exhibits a continuous variation or an intermittent variation in the direction parallel to the extending direction of the first electrodes 2. The first electrode 2 may be periodically changed in the extending direction regardless of whether the width thereof is continuously changed or intermittently changed, and the length of one change period may correspond to the width of one pixel.

In this way, the width of the first electrodes 2 is continuously or intermittently varied in the extending direction of the first electrodes 2, so that the adjacent first electrodes 2 have a continuously or intermittently varied pitch. Therefore, the positions of the generated diffraction stripes are different between different width positions of the first electrodes 2 and different distances between the adjacent first electrodes 2, and the derivative effects at different positions are mutually offset, so that the diffraction effect can be effectively weakened, and the photographed graph has higher definition when the camera is arranged below the transparent display panel.

Preferably, the display panel described in the above embodiment is a light-transmitting display panel, a light-sensing device may be disposed below the display panel, when the light-sensing device does not work, the display panel may normally perform dynamic or static image display, and when the light-sensing device works, the display content of the display panel changes according to specific requirements, such as displaying an external image being photographed, or the display panel may also be in a non-display state, and the display panel is disposed as the light-transmitting display panel, so that the light-sensing device can normally perform light collection through the display panel. Preferably, the luminousness that can set up display panel is greater than 15% to improve the efficiency that photosensitive device can carry out light acquisition through this display panel, and then optimize photosensitive device's operating condition, for example photosensitive element is the camera, then can optimize the definition of the picture of shooing or shooting video.

Preferably, in conjunction with fig. 1 to 9, the first electrode 2 and the second electrode 6 may be both provided as light-transmitting electrodes to improve light transmittance of the display panel. For example, ITO (indium tin oxide) or IZO (indium zinc oxide) may be used as a material constituting the first electrode 2, ITO, IZO, or a light-transmitting metal material may be used as a material constituting the second electrode 6, ITO, IZO, Ag + ITO (silver-doped indium tin oxide), Ag + IZO (silver-doped indium zinc oxide), or the like may be used as a material constituting the first electrode 2 and the second electrode 6, and an insulating layer material is preferably SiO ₂And SiN _xAnd the like.

The embodiment of the invention also provides a display screen, and fig. 10 is a schematic top view structure diagram of the display screen provided by the embodiment of the invention. With reference to fig. 1 to 10, the display screen 9 includes at least one first display area AA1, the first display area AA1 is provided with the display panel of the above embodiment, the display screen 9 further includes a second display area AA2, the display panel disposed in the first display area AA1 is a PMOLED display panel, the display panel disposed in the second display area AA2 is an AMOLED display panel, and the display panel disposed in the first display area AA1 is a transmissive display panel.

Specifically, with reference to fig. 1 to 10, the first display area AA1 and the second display area AA2 are both used for displaying dynamic or static images, and the photosensitive device 10 may be disposed below the first display area AA1, and the first display area AA1 adopts the display panel in the foregoing embodiment, so that the beneficial effects of the foregoing embodiment are achieved, and no further description is given here, and when light passes through the first display area AA1, no obvious diffraction effect is generated, so that the photosensitive device 10 located below the first display area AA1 can be ensured to work normally.

In addition, when the photosensitive device 10 does not operate, the first display area AA1 may normally perform dynamic or static image display, and when the photosensitive device 10 operates, the first display area AA1 changes with changes in the display content of the entire display screen 9, such as displaying an external image being photographed, or the first display area AA1 may also be in a non-display state, so as to further ensure that the photosensitive device 10 can normally perform light collection through the display panel.

Specifically, with reference to fig. 1 to 10, the light transmittance of the first display area AA1 is greater than that of the second display area AA2, and the light transmittances of the first display area AA1 and the second display area AA2 may also be set to be the same, so that the entire display screen 9 has better light transmittance uniformity, and the display screen 9 is ensured to have better display effect. For example, the display panel disposed in the second display area AA2 may be an AMOLED display panel, or an AMOLED-like display panel, where the AMOLED-like display panel is a display panel whose pixel circuit includes only one switch element, i.e., a driving switch, and has no capacitive structure, and other structures of the AMOLED-like display panel are the same as those of the AMOLED display panel, so as to form a full-screen composed of the PMOLED display panel and the AMOLED display panel.

It should be noted that the transparent or transflective display panel in the first display area AA1 can normally display a picture when the display panel is in an operating state, and when the display panel is in a state requiring other functions, external light can penetrate through the display panel to irradiate a photosensitive device or the like disposed below the display panel.

Preferably, the second display area AA2 may be disposed completely or partially around the first display area AA1, fig. 10 exemplarily sets the second display area AA2 partially around the first display area AA1, i.e., the second display area AA2 surrounds the left side, the right side, and the lower side of the first display area AA1, i.e., the groove area is covered with the first display area AA1 of the PMOLED display panel, as shown in fig. 11, the second display area AA2 is also disposed partially around the first display area AA1, and the second display area AA2 surrounds the lower border of the first display area AA1, i.e., the entire status bar area is covered with the first display area AA1 of the PMOLED display panel, as shown in fig. 12, the second display area AA2 is disposed completely around the first display area AA1, i.e., the second display area AA2 surrounds four borders of the first display area AA 1. In addition, fig. 10 to 12 exemplarily set the shape of the first display area AA1 to be a rectangle or a rectangle-like shape, where four corners of the rectangle may be corners with a circular arc, and may also set the shape of the first display area AA1 to be a trapezoid, a circle, or another shape, and the shape of the first display area AA1 may be specifically set according to specific requirements of a display product.

For example, the PMOLED display panel disposed in the first display area AA1 may be fabricated separately, and then spliced with the AMOLED display panel disposed in the second display area AA2 to form a display screen having both the AMOLED display panel and the PMOLED display panel, or fabricated simultaneously to form a display screen having both the AMOLED display panel and the PMOLED display panel.

Fig. 13 is a schematic cross-sectional structure diagram of a display screen according to an embodiment of the present invention. With reference to fig. 2 and 13, the thickness of the display panel disposed in the first display area AA1 is the same as that of the display panel disposed in the second display area AA2, and the AMOLED display panel in the second display area AA2 further includes an array substrate compared to the PMOLED display panel in the first display area AA1, and an insulating layer may be disposed in the first display area AA1 to make the thicknesses of the PMOLED display panel in the first display area AA1 and the AMOLED display panel in the second display area AA2 the same, so that the surface of the display screen including the first display area AA1 and the second display area AA2 is flat. For example, corresponding to the first display area AA1, the insulating layer 101 may be disposed on the substrate, such that the thickness of the insulating layer 101 is equal to the thickness of the array substrate 102 in the second display area AA2, that is, equal to the sum of the thicknesses of all the film layers of the thin film transistor 11 in the array substrate 102 of the second display area AA2 and the thickness of the planarization layer 12, and in addition, the sum of the thicknesses of the pixel definition layer 7 and the isolation pillar 3 in the PMOLED display panel of the first display area AA1 may be equal to the thickness of the pixel definition layer 70 in the AMOLED display panel of the second display area AA2, such that the thickness of the display panel disposed in the first display area AA1 is the same as that disposed in the second display area AA2, such that the surface of the display screen compatible with the AMOLED display panel and the PMOLED display panel is planarized.

Fig. 14 is a schematic cross-sectional structure view of another display panel according to an embodiment of the present invention. With reference to fig. 5 and 14, the thickness of the display panel disposed in the first display area AA1 is the same as that of the display panel disposed in the second display area AA2, and similarly, the insulating layer 101 may be disposed on the substrate 1 corresponding to the first display area AA1, so that the thickness of the insulating layer 101 is equal to the thickness of the array substrate 102 in the second display area AA2, that is, equal to the sum of the thicknesses of all the film layers of the thin film transistors 11 in the array substrate 102 in the second display area AA2 and the thickness of the planarization layer 12, and in addition, the thickness of the isolation pillar 3 in the amooled display panel in the first display area AA1 may be equal to the thickness of the pixel definition layer 70 in the AMOLED display panel in the second display area AA2, so that the thickness of the display panel disposed in the first display area AA1 is the same as that of the display panel disposed in the second display area AA2, so that the surface of the AMOLED display panel and the PMOLED display panel is compatible with the amo.

Preferably, in conjunction with fig. 13 and 14, the display panel disposed in the first display area AA1 may be fabricated at the same time as part of the film layer of the display panel disposed in the second display area AA2, and for example, in conjunction with fig. 13 and 14, the light-emitting functional layer 4 in the display panel disposed in the first display area AA1 may be fabricated at the same time as the light-emitting functional layer 40 in the display panel disposed in the second display area AA2, so as to simplify the fabrication process of the display panel. In addition, the display panel disposed in the first display area AA1 and the display panel disposed in the second display area AA2 may share the substrate 1 and the encapsulation layer 30, the substrate 1 may be made of a hard material such as glass, and accordingly, the encapsulation layer 30 may be made of glass, the substrate 1 may be made of a flexible material such as PI (polyimide), and accordingly, the encapsulation layer 30 may be a thin film sub-packaging layer including an organic layer and an inorganic layer alternately disposed.

Preferably, the thickness of the second electrode 6 in the display panel disposed in the first display area AA1 is smaller than the thickness of the second electrode 60 in the display panel disposed in the second display area AA2, the requirement of the first display area on the transmittance of the second electrode is better, the thickness of the second electrode 6 in the display panel disposed in the first display area AA1 affects the transmittance of the second electrode 6, the thickness of the second electrode 6 in the display panel disposed in the first display area AA1 is smaller than the thickness of the second electrode 60 in the display panel disposed in the second display area AA2, which is beneficial to improving the transparency of the second electrode 6 in the display panel disposed in the first display area AA1, so as to improve the light collection rate of the photosensitive device disposed in the first display area AA 1.

Illustratively, the display panel provided in the first display area AA1 may have high light transmittance by using materials of respective layers having good light transmittance. For example, each layer is made of a material having a light transmittance of greater than 90%, so that the light transmittance of the entire display panel can be 70% or more. Preferably, each structural film layer is made of a material with a light transmittance of greater than 95%, so as to further improve the light transmittance of the display panel, and even enable the light transmittance of the whole display panel to be more than 80%.

The display screen may further include a polarizer and a cover plate located above the encapsulation layer, or the cover plate may be directly disposed above the encapsulation layer without disposing the polarizer, or the cover plate may be directly disposed above the encapsulation layer of the first display area without disposing the polarizer, so as to avoid the polarizer from affecting the light collection amount of the photosensitive element disposed corresponding to the first display area, and of course, the polarizer may also be disposed above the encapsulation layer of the first display area AA 1.

Fig. 15 is a schematic cross-sectional structure view of a display panel according to an embodiment of the present invention, and fig. 16 is a schematic top-view structure view of the display panel according to the embodiment of the present invention. With reference to fig. 15 and 16, the display device includes an apparatus body 8 and a display screen 9, the display screen 9 covers the apparatus body 8 and is connected to the apparatus body 8, an arrow in fig. 15 indicates an incident direction of an external light, where the display screen 9 may adopt the display screen 9 of the above embodiment to display a static or dynamic picture, and therefore, the display device provided in the embodiment of the present invention also has the beneficial effects described in the above embodiment, and details are not repeated here.

With reference to fig. 15 and 16, the device body 8 in the display apparatus has a device region B located below the first display region AA1 of the display screen 9, and the device region B is provided with a photosensitive device 10 that collects light through the first display region AA 1. Specifically, with reference to fig. 15 and 16, the device body 8 may be provided with a slotted area 112 and a non-slotted area 114, the slotted area 112 corresponds to the first display area AA1, the slotted area 112 may be provided with the photosensitive devices 10 such as a camera and a light sensor, and the display panel of the first display area AA1 of the display screen 9 is attached to the slotted area 112, so that the photosensitive devices 10 such as a camera and a light sensor can collect external light through the first display area AA 1. Because the display panel that first display area AA1 set up can effectively improve the diffraction phenomenon that this first display area AA1 of external light transmission produced to can effectively promote the quality of the image that the camera shot among the display device, avoid causing the image distortion of shooing because of the diffraction, also can promote the precision and the sensitivity of light sensor sensing external light simultaneously. Illustratively, the display device may be a digital device such as a mobile phone, a tablet, a palm computer or an ipod.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, comprising:

a substrate;

a plurality of first electrodes formed on the substrate;

2. The display panel according to claim 1, wherein the pixel regions and the partition regions are alternately arranged in a first direction, the isolation pillars and the isolation grooves extend in a second direction, and the isolation pillars and the isolation grooves are alternately arranged in the first direction in the partition regions, and the first direction intersects with the second direction.

3. The display panel according to claim 1, wherein the spacers include first ends adjacent to the substrate and second ends remote from the substrate, the first ends of the spacers having an area smaller than that of the second ends of the spacers in a direction parallel to the display panel;

4. The display panel of claim 3, wherein the isolation slot comprises a first end proximate to the substrate and a second end distal to the substrate; preferably, the width of the first end of the isolation groove is greater than or equal to 1 micron;

5. The display panel according to any one of claims 1 to 4, further comprising:

6. The display panel according to claim 5, wherein a ratio of a thickness of the barrier pillar to a thickness of the pixel defining layer is 1:2 or more and 1:1 or less in a direction perpendicular to the display panel.

7. The display panel according to any one of claims 1 to 4, wherein the spacers are disposed in contact with the first electrodes;

8. The display panel according to any one of claims 1 to 4, wherein, in an extending direction of the spacers, a perpendicular projection of the spacers on the substrate varies continuously or discontinuously along a width perpendicular to the extending direction;

preferably, the display panel is a light-transmissive display panel;

preferably, the light transmittance of the display panel is greater than 15%;

9. A display screen, characterized by comprising at least one first display area provided with a display panel according to any one of claims 1-8;

10. A display device, comprising:

an apparatus body having a device region;

the display screen of claim 9 overlaid on the device body;