CN111028692A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN111028692A
CN111028692A CN201911363928.5A CN201911363928A CN111028692A CN 111028692 A CN111028692 A CN 111028692A CN 201911363928 A CN201911363928 A CN 201911363928A CN 111028692 A CN111028692 A CN 111028692A
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China
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sub
transition
display
pixel
area
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CN201911363928.5A
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马扬昭
夏志强
杨星星
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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Priority to CN201911363928.5A priority Critical patent/CN111028692A/en
Publication of CN111028692A publication Critical patent/CN111028692A/en
Priority to CN202011582716.9A priority patent/CN112562518B/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Abstract

The embodiment of the invention provides a display panel and a display device. The display area of the display panel comprises a first display area, a first transition area, a second display area and a second transition area, wherein the first transition area is positioned between the first display area and the second display area, and the second transition area is positioned between the first transition area and the first display area; the display area comprises a plurality of sub-pixels, the sub-pixels comprise a first sub-pixel positioned in the first display area, a first transition sub-pixel positioned in the first transition area, a first virtual sub-pixel positioned in the second transition area and a second sub-pixel positioned in the second display area, and the first virtual sub-pixel is not used for light emitting display; the density of the first sub-pixels in the first display area is less than that of the first transition sub-pixels in the first transition area, and the density of the first transition sub-pixels in the first transition area is less than that of the second sub-pixels in the second display area. The invention solves the problem of uneven display of the display panel and improves the display effect.

Description

Display panel and display device
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
For electronic products, the arrangement of optical modules such as a front camera inevitably occupies a certain space, thereby affecting the screen occupation ratio. In order to realize a real full screen, researchers consider the implementation scheme of the optical module under the screen. Set up optical module for example the camera in display panel's emitting device's below, be about to optical module set up in the display area, the position at optical module place can normally show, when needs use optical module, light penetrates display panel and reaches optical module and finally is utilized by optical module. In the scheme of the optical module under the screen, the common design is to reduce the pixel density of the area where the optical module is located so as to improve the light transmittance of the area where the optical module is located and further improve the light quantity received by the optical module. In the scheme, the area where the optical module is located has the problem of uneven display during display, so that the display effect is influenced.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem of uneven display of the display panel and improving the display effect.
In a first aspect, an embodiment of the present invention provides a display panel, where a display area of the display panel includes a first display area, a first transition area, a second display area, and a second transition area, where the first transition area is located between the first display area and the second display area, and the second transition area is located between the first transition area and the first display area;
the display region includes a plurality of sub-pixels including a first sub-pixel located in the first display region, a first transition sub-pixel located in the first transition region, a first dummy sub-pixel located in the second transition region, and a second sub-pixel located in the second display region,
the first virtual sub-pixel is not used for light emitting display; the density of the first sub-pixels in the first display area is less than that of the first transition sub-pixels in the first transition area, and the density of the first transition sub-pixels in the first transition area is less than that of the second sub-pixels in the second display area.
Based on the same inventive concept, in a second aspect, an embodiment of the present invention further provides a display device, including any one of the display panels provided in the embodiments of the present invention.
The display panel and the display device provided by the embodiment of the invention have the following beneficial effects: in the first display area, the first transition area and the second display area, the density of the first sub-pixels in the first display area is minimum, and the light transmittance of the first display area is maximum. Meanwhile, the density of the sub-pixels in the first transition area is between the first display area and the second display area, when the display panel displays, the first transition area can play a visual transition effect, the resolution difference caused by the difference of the density of the sub-pixels between the second display area and the first display area is reduced, and the display effect is improved. In addition, because the density of the sub-pixels is different between the first display area and the first transition area, in the anode etching process of the sub-pixels and the etching process of the pixel defining layer, an abrupt change of the density of the etching pattern exists near the boundary of the first display area and the second transition area. And in the manufacturing process of the pixel circuit, an abrupt change of the density of the etching pattern exists near the boundary of the first display area and the second transition area. In the panel manufacturing process, near the boundary between the first transition region and the first display region, exposure or etching unevenness may be caused by abrupt change of etching pattern density, so that line width and line distance are uneven, and further, electrical differences are caused, and especially, the width-to-length ratio of transistors in a pixel circuit is affected, and further, the brightness of sub-pixels is affected. In the embodiment of the invention, the first virtual sub-pixel which is not used for displaying is arranged between the first display area and the first transition area, so that the problem of uneven exposure or etching caused by abrupt change of the density of the etching pattern can be generated on the first virtual sub-pixel in the manufacturing process of the display panel, and the influence of the problem of uneven exposure or etching on the brightness of the first transition sub-pixel at one side close to the first display area in the first transition area or the brightness of the first sub-pixel at one side close to the first transition area in the first display area is avoided. The embodiment of the invention can further improve the abnormal brightness of the sub-pixel caused by the problem of uneven exposure or etching caused by abrupt change of the etching pattern near the boundary of the first display area and the first transition area, and can improve the display effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic partial top view of a display panel according to an embodiment of the invention;
FIG. 2 is a schematic top view of a portion of an alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a portion of an alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of an alternative embodiment taken at line A-A' of FIG. 5;
FIG. 7 is a schematic partial cross-sectional view of another alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 8 is a schematic top view of a cathode layer in another alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 9 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 10 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 11 is a schematic view of a display device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Fig. 1 is a schematic partial top view of a display panel according to an embodiment of the invention. As shown in fig. 1, the display region of the display panel includes a first display region AA1, a first transition region G1, a second display region AA2 and a second transition region G2, wherein the first transition region G1 is located between the first display region AA1 and the second display region AA2, and the second transition region G2 is located between the first transition region G1 and the first display region AA 1; fig. 1 is a partial schematic view, and in the embodiment of the present invention, the shape of the first display area may be designed according to specific requirements, and the first display area may be any shape such as a circle, a rectangle, a triangle, and the like. When displayed, the first display area may be used to display a power level graphic, a message notification graphic, a network status graphic, and the like.
The display area includes a plurality of sub-pixels including a first sub-pixel sp1 located in a first display area AA1, a first transition sub-pixel spg located in a first transition area G1, a first virtual sub-pixel spx1 located in a second transition area G2, and a second sub-pixel sp2 located in a second display area AA2, wherein,
the first virtual sub-pixel spx1 is not used for light emitting display. In one embodiment, the first dummy sub-pixel spx1 includes an anode, a light emitting layer, and a cathode, and the second transition region further includes a first dummy pixel circuit corresponding to the first dummy sub-pixel, and optionally, one first dummy sub-pixel corresponds to one first dummy pixel circuit. It may be that the first virtual pixel circuit is not connected to the anode of the first virtual sub-pixel, thereby enabling the first virtual sub-pixel not to be used for emitting light. In another embodiment, the first dummy subpixel spx1 includes an anode, a light emitting layer, and a first dummy pixel circuit, and the corresponding cathode over the anode is etched away to achieve that the first dummy subpixel does not emit light. In another embodiment, in the transistor of the first dummy circuit, the source metal and the drain metal are not connected to the source region and the drain region of the semiconductor layer, so that the first dummy sub-pixel does not emit light.
As illustrated in the drawing, the density of the first sub-pixels sp1 in the first display area AA1 is less than the density of the first transition sub-pixels spg in the first transition area G1, and the density of the first transition sub-pixels spg in the first transition area G1 is less than the density of the second sub-pixels sp2 in the second display area AA 2.
In the first display area, the first transition area and the second display area, the density of the first sub-pixels in the first display area is minimum, and then the light transmittance of the first display area is maximum. Meanwhile, the density of the sub-pixels in the first transition area is between the first display area and the second display area, when the display panel displays, the first transition area can play a visual transition effect, the resolution difference caused by the difference of the density of the sub-pixels between the second display area and the first display area is reduced, and the display effect is improved. In addition, because the density of the sub-pixels is different between the first display area and the first transition area, in the anode etching process of the sub-pixels and the etching process of the pixel defining layer, an abrupt change of the density of the etching pattern exists near the boundary of the first display area and the second transition area. And in the manufacturing process of the pixel circuit, an abrupt change of the density of the etching pattern exists near the boundary of the first display area and the second transition area. In the panel manufacturing process, near the boundary between the first transition region and the first display region, exposure or etching unevenness may be caused by abrupt change of etching pattern density, so that line width and line distance are uneven, and further, electrical differences are caused, and especially, the width-to-length ratio of transistors in a pixel circuit is affected, and further, the brightness of sub-pixels is affected. In the embodiment of the invention, the first virtual sub-pixel which is not used for displaying is arranged between the first display area and the first transition area, so that the problem of uneven exposure or etching caused by abrupt change of the density of the etching pattern can be generated on the first virtual sub-pixel in the manufacturing process of the display panel, and the influence of the problem of uneven exposure or etching on the brightness of the first transition sub-pixel at one side close to the first display area in the first transition area or the brightness of the first sub-pixel at one side close to the first transition area in the first display area is avoided. The embodiment of the invention can further improve the abnormal brightness of the sub-pixel caused by the problem of uneven exposure or etching caused by abrupt change of the etching pattern between the first display area and the first transition area, and can improve the display effect.
In fig. 1, the arrangement of the sub-pixels is only schematically shown only to illustrate the relationship between the sub-pixel density in each partial display area.
In an embodiment, as shown in fig. 2, fig. 2 is a schematic partial top view of an alternative implementation of a display panel according to an embodiment of the present invention. The sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. As illustrated in the drawing, in the first display area AA1, the first color first sub-pixel 1sp1, the second color first sub-pixel 2sp1, and the third color first sub-pixel 3sp1 are included, and the three color sub-pixels are dispersedly disposed. Within the first transition region G1, a first color first transition sub-pixel 1spg, a second color first transition sub-pixel 2spg, and a third color first transition sub-pixel 3spg are included. The sub-pixels in the first display area AA1 and in the first transition area G1 are arranged dispersedly. The embodiment can be applied to a display panel which adopts a sub-pixel rendering mode to display, the brightness of the first display area AA1 when displaying can be improved by selecting different sub-pixel rendering algorithms, the obvious display brightness difference between different display areas caused by large pixel density difference is avoided, and the display effect is improved.
In another embodiment, as shown in fig. 3, fig. 3 is a schematic partial top view of an alternative implementation of the display panel according to the embodiment of the present invention. As illustrated in the drawing, the subpixels of three different colors constitute one repeating unit CC, and the repeating unit CC is arranged in a staggered manner in both the first display area AA1 and the first transition area G1. This embodiment can be applied to a display panel that displays by real data output.
Optionally, 1 to 3 rows of first virtual sub-pixels and/or 1 to 3 columns of first virtual sub-pixels may be arranged in a second transition area between the first transition area and the first display area according to the position relationship between the first display area and the first transition area and the shape of the first display area. Specifically, referring to the illustration in fig. 4, the first display region is illustrated as being substantially rectangular in shape. Fig. 4 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention. Only the first display region AA1, a portion of the first transition region G1, and the second transition region G2 are illustrated. The sub-pixels in the display area are arranged in rows of pixels in the first direction x and in columns of pixels in the second direction y. The arrangement of the sub-pixels in the figure is only schematically shown. A plurality of first virtual subpixels spx1 are disposed around the first display area AA1 within the second transition area G3, wherein 3 columns of the first virtual subpixels spx1 are disposed between the first display area AA1 and the first transition area G1 in the first direction x; in the second direction y, 3 lines of the first virtual sub-pixels spx1 are disposed between the first display area AA1 and the first transition area G1. Other shapes of the first display area can be understood with reference to the arrangement of fig. 4. Through the arrangement of the first virtual sub-pixels, the problem of electrical property difference caused by exposure or uneven etching due to the fact that the density of the sub-pixels of the first transition area and the first display area is different is solved, and the problem that the sub-pixels need to be normally displayed in the display area are prevented from being influenced due to the fact that the electric property difference is caused by the fact that the density of the etching pattern is suddenly changed in the manufacturing process. The number of the first virtual sub-pixels does not need to be set too much, so that the display effect is not influenced by a non-display area with a larger width in the display area. Further, fig. 5 is a schematic top view of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 5, the display panel includes a plurality of pixel circuits including a first pixel circuit DL1, a first transition pixel circuit DLg, and a first dummy pixel circuit DLx 1; the first pixel circuit DL1 and the first transition pixel circuit DLg are located in the first transition region G1, the first pixel circuit DL1 is electrically connected to the first sub-pixel sp1, the first transition pixel circuit DLg is electrically connected to the first transition sub-pixel spg, and the first dummy pixel circuit DLx1 is located in the second transition region G2. In the embodiment, the first pixel circuit for driving the first sub-pixel is arranged in the first transition area, so that the light transmittance of the first display area can be further increased, the light quantity received by the optical module can be further improved in the scheme of the optical module under the screen, and the optical performance can be further improved. In addition, because the first virtual pixel circuit is arranged in the second transition area, in the manufacturing process of the pixel circuit, the problem of uneven exposure or etching caused by abrupt change of pattern density can occur on the first virtual pixel circuit, so that the width-length ratio of transistors in the first pixel circuit and the first transition pixel circuit can be prevented from being influenced, and the brightness abnormality of the first transition sub-pixel and the first pixel can be prevented.
In one embodiment, FIG. 6 is a schematic cross-sectional view of an alternative embodiment taken at the location of line A-A' of FIG. 5. The pixel circuit actually includes a plurality of transistors and circuit connection lines, and is a very complicated structure, and only one transistor in the pixel circuit is shown in fig. 6 in a simplified schematic manner to illustrate the connection between the pixel circuit and the sub-pixel. As shown in fig. 6, the first transition sub-pixel spg includes an anode, a light emitting layer, and a cathode (not shown) stacked in this order, and the anode of the first transition sub-pixel spg is electrically connected to the first transition pixel circuit DLg. Within the second transition region G2, the first virtual sub-pixel spx also includes the same structure as the first transition sub-pixel spg, i.e., the first virtual sub-pixel spx includes the structures of an anode, a light emitting layer, and a cathode, but the anode of the first virtual sub-pixel spx is not electrically connected to the first virtual pixel circuit DLx1, thereby realizing that the first virtual sub-pixel spx is not used for light emitting display. In the first dummy pixel circuit DLx1 illustrated in fig. 6 within the second transition region G2, the source and drain electrodes of the transistor are connected to the source and drain regions in the semiconductor active layer, respectively. The source and drain electrodes in the pixel circuit are respectively connected with the source electrode region and the drain electrode region through the through holes in the insulating layer, and the embodiment can also ensure that the problem of uneven exposure or etching caused by abrupt density change of the etched through holes is caused on the through holes in the first virtual pixel circuit in the process of manufacturing the through holes in the insulating layer, thereby ensuring that the size of the through holes in the pixel circuit in the first transition region is accurately manufactured.
In another embodiment, in the first dummy pixel circuit in the second transition region, the source and drain of the transistor are not connected to the source region and the drain region in the semiconductor active layer, so that the first dummy pixel circuit cannot drive the first dummy sub-pixel to emit light for display.
In one embodiment, as shown with continued reference to fig. 5 above, the plurality of first dummy pixel circuits DLx in the second transition region G2 are arranged in the same manner as the plurality of pixel circuits (including the first pixel circuit DL1 and the first transition pixel circuit DLg) in the first transition region G1. The first pixel circuit for driving the first sub-pixel is arranged in the first transition area, the pixel circuit is not arranged in the first display area, and in the manufacturing process of the pixel circuit, the pixel circuit in the first transition area is likely to be exposed or etched unevenly due to abrupt change of etching pattern density, so that the line width and the line distance are uneven, and further the brightness of the sub-pixel is influenced. The embodiment can ensure that the problem of uneven line width and line distance caused by uneven exposure or etching in each process of manufacturing the pixel circuit can be generated in the first virtual pixel circuit, and the first virtual pixel circuit is not used for driving the sub-pixels to emit light, so that the brightness of the sub-pixels in the display area can not be influenced.
In one embodiment, as shown in fig. 5, the display panel further includes connection lines L (only one connection line is illustrated), one end of the connection line L is electrically connected to the first sub-pixel sp1, and the other end of the connection line L is electrically connected to the first pixel circuit DL 1; the connecting line L includes a first section L1 and a second section L2, wherein the first section L1 is located in the first display area AA1, the second section L2 is a portion of the connecting line except for the first section, the light transmittance of the first section L1 is greater than that of the second section L2, and the resistivity of the second section L2 is less than that of the first section L1. The first pixel circuit located in the first transition area is arranged through the connecting line to display the first sub-pixels in a driving mode, the light transmittance of the first subsection located in the first display area is large, the light transmittance is large enough when the light penetrates through the first subsection, and the light transmittance of the first display area is prevented from being influenced by the arrangement of the connecting line. Meanwhile, the resistivity of the second subsection is smaller than that of the first subsection, the second subsection can balance the overall resistance of the connecting line, and the problem that the brightness of the sub-pixels is affected due to overlarge resistance on the connecting line and overlarge voltage drop during voltage signal transmission is avoided.
Optionally, the material of the first part includes indium tin oxide, and the material of the second part includes any one or more of molybdenum, aluminum and titanium.
In another embodiment, a part of the structure in the first dummy pixel circuit may be multiplexed to make a connection line to realize an electrical connection between the first sub-pixel and the first pixel circuit. Because the first virtual pixel circuit is not used for driving the sub-pixels to display, and part of the structures (such as a source electrode, a drain electrode or a grid electrode in the first virtual pixel circuit) are multiplexed, the luminous display of the sub-pixels is not influenced, and the number of the wires in the second transition region can be reduced.
In an embodiment, fig. 7 is a schematic partial cross-sectional view of another alternative implementation of a display panel according to an embodiment of the present invention. As shown in fig. 7, the display panel includes a display layer including an anode layer a, a light emitting layer b, and a cathode layer c, wherein the anode layer a includes a plurality of anodes insulated from each other, the anodes further include a first anode a1, and one first subpixel sp1 includes one first anode a 1; the cathode layer c has a plurality of first openings K1, the first openings K1 are located in the first display area AA1, and the first openings K1 do not overlap with the first anode a1 in a direction perpendicular to the display panel. The first opening and the first positive pole of cathode layer do not overlap in this embodiment, guarantee that the design of first opening does not influence the luminous demonstration of first sub-pixel, simultaneously, use under the screen in the optical module scheme, when light penetrated display panel by first opening position department, can reduce light loss to can promote the light penetration rate, also can increase the light volume that optical module received, further promote optical property.
Further, fig. 8 is a schematic top view of a cathode layer in another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 8, only a partial region of the cathode layer is illustrated, and the cathode layer further has a plurality of second openings K2, the second openings K2 being located in the second transition region G2; the second openings K2 in the second transition region G2 are arranged in the same manner as the first openings K1 in the first display region AA 1. In the process of etching the opening by the cathode layer, the problem of uneven exposure or etching caused by the abrupt change of the density of the etching pattern can occur on the second opening, so that the etching accuracy of the first opening in the first display area can be ensured, and the influence on the luminous performance of the first sub-pixel due to the overlapping of the first opening and the first anode is avoided.
In some alternative embodiments, as shown in fig. 9, fig. 9 is a schematic top view of another alternative embodiment of the display panel according to the embodiment of the present invention. The display region further includes a third transition region G3, the third transition region G3 being located between the first transition region G1 and the second display region AA 2; the plurality of sub-pixels further includes at least one second virtual sub-pixel spx2 located at the third transition region G3, the second virtual sub-pixel spx2 not being used for a light emitting display. Further, a third transition area is arranged between the first transition area and the second display area, a second virtual sub-pixel in the third transition area is not used for light emitting display, and the problem of uneven exposure or etching in an etching process caused by different sub-pixel densities of the first transition area and the second display area can occur on the second virtual sub-pixel, so that the influence of uneven etching on the brightness of the second sub-pixel, close to the first transition area, in the second display area can be avoided, and the influence of uneven etching on the brightness of the first transition sub-pixel, close to the second display area, in the first transition area can also be avoided.
In one embodiment, the second virtual sub-pixel comprises an anode, a light emitting layer and a cathode, and the anode of the second virtual sub-pixel is not connected with the pixel circuit, so that the second virtual sub-pixel is not used for light emitting display.
In another embodiment, the source and drain electrodes of the transistor in the pixel circuit corresponding to the second virtual sub-pixel are not connected with the source region and the drain region in the semiconductor active layer, so that the second virtual sub-pixel is not used for light emitting display.
With continued reference to the illustration of fig. 9, the plurality of second virtual sub-pixels spx2 in the third transition area G3 are arranged in the same manner as the plurality of second sub-pixels sp2 in the second display area AA 2. The sub-pixel comprises an anode, a light emitting layer and a cathode which are stacked in sequence, and in general, the anode and the pixel defining layer of the spacing sub-pixel are all manufactured by adopting an etching process. The sub-pixel density of the second display area is different from that of the first transition area, and at the boundary position of the second display area and the first transition area, there is a sudden change in pattern density when etching the anode or the pixel defining layer. According to the embodiment, the problem of uneven exposure or etching caused by abrupt change of pattern density in the etching process can be ensured to occur at the position of the second virtual sub-pixel, and adverse effects on the second sub-pixel close to the first transition area in the second display area or the first transition sub-pixel close to the second display area in the first transition area are avoided.
Optionally, according to the position relationship between the second display area and the first transition area, in a third transition area between the first transition area and the second display area, 1 to 3 rows of second virtual sub-pixels and/or 1 to 3 columns of second virtual sub-pixels may be set. Through the arrangement of the second virtual sub-pixels, the problem of electrical property difference caused by exposure or uneven etching due to the fact that the density of the sub-pixels of the first transition area and the second display area is different is solved, and the problem that the electrical property difference is caused by the fact that the density of the etching pattern is suddenly changed in the manufacturing process can occur on the second virtual sub-pixels, so that the sub-pixels needing to be normally displayed in the display area are prevented from being affected. The number of the second virtual sub-pixels does not need to be set too much, so that the display effect is not influenced by a non-display area with a larger width in the display area.
Further, fig. 10 is a schematic top view of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 10, the plurality of pixel circuits further includes a second pixel circuit DL2 located in the second display area AA2 and a second dummy pixel circuit DLx2 located in the third transition area G3, the second pixel circuit DL2 is electrically connected to the second sub-pixel sp2, and the second dummy pixel circuit DLx2 in the third transition area G3 is arranged in the same manner as the second pixel circuit DL2 in the second display area AA 2. The density of the sub-pixels between the second display area and the first transition area is different, and the density of the corresponding pixel circuits for driving the sub-pixel to emit light for display is also different. By arranging the second virtual pixel circuit between the second display area and the first transition area, and the second virtual pixel circuit is not used for driving luminous display, the problem of uneven exposure or etching caused by abrupt change of density of an etching pattern can be caused in the second virtual pixel circuit in the manufacturing process of the pixel circuit, so that adverse effects on the second pixel circuit or the first transition pixel circuit can be avoided.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, and fig. 11 is a schematic diagram of the display device provided in the embodiment of the present invention. As shown in fig. 11, a display panel 100 according to any embodiment of the present invention is included. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 11 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A display panel, wherein the display area of the display panel comprises a first display area, a first transition area, a second display area and a second transition area, wherein the first transition area is located between the first display area and the second display area, and the second transition area is located between the first transition area and the first display area;
the display area comprises a plurality of sub-pixels, the sub-pixels comprise a first sub-pixel positioned in the first display area, a first transition sub-pixel positioned in the first transition area, a first virtual sub-pixel positioned in the second transition area and a second sub-pixel positioned in the second display area, wherein the first virtual sub-pixel is not used for light emitting display; the density of the first sub-pixels in the first display area is less than that of the first transition sub-pixels in the first transition area, and the density of the first transition sub-pixels in the first transition area is less than that of the second sub-pixels in the second display area.
2. The display panel according to claim 1,
the display panel includes a plurality of pixel circuits including a first pixel circuit, a first transition pixel circuit, and a first dummy pixel circuit;
the first pixel circuit and the first transition pixel circuit are located in the first transition region, the first pixel circuit is electrically connected with the first sub-pixel, the first transition pixel circuit is electrically connected with the first transition sub-pixel, and the first virtual pixel circuit is located in the second transition region.
3. The display panel according to claim 2,
the display panel further comprises a connecting wire, one end of the connecting wire is electrically connected with the first sub-pixel, and the other end of the connecting wire is electrically connected with the first pixel circuit;
the connecting line comprises a first subsection and a second subsection, wherein the first subsection is located in the first display area, the second subsection is the part, except the first subsection, of the connecting line, the light transmittance of the first subsection is larger than that of the second subsection, and the resistivity of the second subsection is smaller than that of the first subsection.
4. The display panel according to claim 2,
the arrangement mode of the plurality of first virtual pixel circuits in the second transition area is the same as the arrangement mode of the plurality of pixel circuits in the first transition area.
5. The display panel according to claim 1,
the display panel comprises a display layer, wherein the display layer comprises an anode layer, a light-emitting layer and a cathode layer, the anode layer comprises a plurality of mutually insulated anodes, the anodes comprise first anodes, and one first sub-pixel comprises one first anode;
the cathode layer is provided with a plurality of first openings, the first openings are positioned in the first display area, and in the direction perpendicular to the display panel, the first openings are not overlapped with the first anodes.
6. The display panel according to claim 5,
the cathode layer further having a plurality of second openings located at the second transition region;
the arrangement mode of the second openings in the second transition area is the same as the arrangement mode of the first openings in the first display area.
7. The display panel according to any one of claims 1 to 6,
the display area further comprises a third transition area, the third transition area being located between the first transition area and the second display area;
the plurality of sub-pixels further comprises at least one second virtual sub-pixel located in the third transition region, the second virtual sub-pixel not being used for light emitting display.
8. The display panel according to claim 7,
the arrangement mode of the plurality of second virtual sub-pixels in the third transition area is the same as the arrangement mode of the plurality of second sub-pixels in the second display area.
9. The display panel according to claim 7,
the plurality of pixel circuits further include a second pixel circuit located in the second display region and a second dummy pixel circuit located in the third transition region, the second pixel circuit is electrically connected to the second sub-pixel, and the second dummy pixel circuit in the third transition region is arranged in the same manner as the second pixel circuit in the second display region.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
CN201911363928.5A 2019-12-26 2019-12-26 Display panel and display device Pending CN111028692A (en)

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