The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display apparatus.
With the rapid development of display technologies, display apparatuses have gradually spread in people's lives. Among them, the organic light-emitting diode (OLED) is widely used in smart products such as cell phones, televisions, laptops, etc. due to its advantages of self-luminescence, low power consumption, wide viewing angle, fast response speed, high contrast, and flexible display.
In an aspect, a display panel is provided. The display panel includes a substrate, a plurality of pixel circuits and a plurality of anodes. The plurality of pixel circuits are provided on the substrate. The plurality of pixel circuits include multiple first pixel circuits and multiple second pixel circuits. The plurality of pixel circuits are arranged in multiple rows and multiple columns. A row of pixel circuits is divided into multiple pixel circuit groups, and a pixel circuit group includes a first pixel circuit and a second pixel circuit adjacent to each other. In a same pixel circuit group, a first pixel circuit is symmetrical with a second pixel circuit about a first axis, where the first axis extends along a first direction, and the first direction is a column direction in which the plurality of pixel circuits are arranged. The plurality of anodes are provided on a side of the plurality of pixel circuits away from the substrate.
Each pixel circuit includes an overlapping portion, and the pixel circuit is electrically connected to an anode through the overlapping portion. An overlapping portion of the first pixel circuit is a first overlapping portion, and an overlapping portion of the second pixel circuit is a second overlapping portion. Along a second direction, a minimum distance between the first overlapping portion and the second overlapping portion in the same pixel circuit group is a first distance, where the second direction is a row direction in which the plurality of pixel circuits are arranged. Along the second direction, a minimum distance between a first overlapping portion and a second overlapping portion that belong to different pixel circuit groups and are adjacent is a second distance. The first distance is less than the second distance.
In some embodiments, the display panel further includes a plurality of power supply signal lines. Each power supply signal line extends substantially along the first direction and is connected to pixel circuits. Two power supply signal lines respectively connected to the two pixel circuits in the same pixel circuit group form a first power supply signal line group, and the two power supply signal lines of the first power supply signal line group are symmetrical about the first axis.
The plurality of anodes include first anodes, a first anode includes a main body portion, and a center line of the main body portion of the first anode extending along the first direction substantially coincides with the first axis. An orthographic projection of the main body portion of the first anode on the substrate overlaps with orthographic projections of the two power supply signal lines of the first power supply signal line group on the substrate.
In some embodiments, the orthographic projection of the main body portion of the first anode on the substrate is located between orthographic projections of two edges, away from each other, of the two power supply signal lines of the first power supply signal line group on the substrate.
In some embodiments, the power supply signal line includes first trace segments and second trace segments alternately connected, and along the second direction, a minimum width of a first trace segment is greater than a maximum width of a second trace segment; and along the first direction, the first trace segment is located between overlapping portions of adjacent pixel circuits, and an orthographic projection of the first trace segment on the substrate overlaps with the orthographic projection of the main body portion of the first anode on the substrate; and along the second direction, the first overlapping portion and the second overlapping portion in the same pixel circuit group are located between second trace segments of the two power supply signal lines of the first power supply signal line group.
In some embodiments, the two power supply signal lines of the first power supply signal line group are provided separately from each other, and have a spacing therebetween; alternatively, the two power supply signal lines of the first power supply signal line group are provided as one piece.
In some embodiments, the display panel further includes a plurality of data lines. Each data line extends substantially along the first direction and is connected to pixel circuits; and two data lines respectively connected to a first pixel circuit and a second pixel circuit that belong to different pixel circuit groups and are adjacent form a first data line group, the two data lines of the first data line group are symmetrical about a second axis, and the second axis extends along the first direction.
The plurality of anodes include second anodes, a second anode includes a main body portion, and a center line of the main body portion of the second anode extending along the first direction substantially coincides with the second axis; and an orthographic projection of the main body portion of the second anode on the substrate overlaps with orthographic projections of the two data lines of the first data line group on the substrate.
In some embodiments, along the first direction, a portion of the orthographic projection of the main body portion of the second anode on the substrate overlapping with each of the orthographic projections of the two data lines of the first data line group on the substrate has a substantially same length.
In some embodiments, the display panel further includes a plurality of power supply signal lines. Two power supply signal lines respectively connected to the first pixel circuit and the second pixel circuit that belong to the different pixel circuit groups and are adjacent form a second power supply signal line group, and the two power supply signal lines of the second power supply signal line group are symmetrical about the second axis. The two data lines of the first data line group are located between the two power supply signal lines of the second power supply signal line group; and the orthographic projection of the main body portion of the second anode on the substrate further overlaps with orthographic projections of the two power supply signal lines of the second power supply signal line group on the substrate.
In some embodiments, the orthographic projection of the main body portion of the second anode on the substrate is located between orthographic projections of two edges, away from each other, of the two power supply signal lines of the second power supply signal line group on the substrate.
In some embodiments, the data line includes straight line segments and at least one bent segment alternately connected. The straight line segments extend in the first direction, and an orthographic projection of a straight line segment on the substrate overlaps with the orthographic projection of the main body portion of the second anode on the substrate. Along the first direction, a bent segment is located between main body portions of two adjacent second anodes, and the bent segment is bent in a direction away from the second axis.
In some embodiments, the bent segment includes a first section, a second section and a third section connected in sequence, the first section and the third section are respectively connected to straight line segments on both sides of the bent segment, and the second section is farther from the second axis than the straight line segments.
In some embodiments, the display panel further includes a pixel defining layer. The pixel defining layer is provided on a side of the plurality of anodes away from the substrate. The pixel defining layer is provided with a plurality of first openings, and a first opening is located between bent segments of the two data lines of the first data line group.
In some embodiments, along a direction perpendicular to the substrate and directed from the substrate to the plurality of anodes, the display panel comprises a first gate conductive layer, a second gate conductive layer, a first source-drain conductive layer and a second source-drain conductive layer arranged in sequence. In a case where the display panel further comprises a plurality of power supply signal lines, the plurality of power supply signal lines are located in the second source-drain conductive layer. In a case where the display panel further comprises a plurality of data lines, the plurality of data lines are located in the first source-drain conductive layer.
In some embodiments, the pixel circuit includes an active layer pattern; for the first pixel circuit and the second pixel circuit located in the same pixel circuit group, a minimum distance between an active layer pattern of the first pixel circuit and an active layer pattern of the second pixel circuit is a third distance; for a first pixel circuit and a second pixel circuit that belong to different pixel circuit groups and are adjacent, a minimum distance between an active layer pattern of the first pixel circuit and an active layer pattern of the second pixel circuit is a fourth distance; and the third distance is less than the fourth distance.
In some embodiments, the anodes each include a main body portion and a connecting portion, and the plurality of anodes include multiple red anodes, multiple blue anodes, multiple first green anodes and multiple second green anodes.
Main body portions of the multiple red anodes and main body portions of the multiple blue anodes are alternately arranged in the first direction and the second direction, and a connecting portion of a red anode and a connecting portion of a blue anode are each electrically connected to a respective first pixel circuit.
Main body portions of the multiple first green anodes and main body portions of the multiple second green anodes are alternately arranged in the first direction and the second direction, and a connecting portion of a first green anode and a connecting portion of a second green anode are each electrically connected to a respective second pixel circuit.
The main body portions of the multiple red anodes are alternately arranged with the main body portions of the multiple first green anodes in a first oblique direction, and are alternately arranged with the main body portions of the multiple second green anodes in a second oblique direction; and the main body portions of the multiple blue anodes are alternately arranged with the main body portions of the multiple first green anodes in the second oblique direction, and are alternately arranged with the main body portions of the multiple second green anodes in the first oblique direction. Of the first oblique direction, the second oblique direction, the first direction and the second direction, any two intersect.
In some embodiments, at least part of a main body portion of the red anode and at least part of a main body portion of the blue anode are each located between two first overlapping portions adjacent in the first direction, and the connecting portion of the red anode and the connecting portion of the blue anode extend substantially along the first direction; and/or at least part of a main body portion of the first green anode and at least part of a main body portion of the second green anode are each located between a first overlapping portion and a second overlapping portion that belong to different pixel circuit groups and are adjacent, and the connecting portion of the first green anode and the connecting portion of the blue anode extend substantially along the second direction.
In some embodiments, the display panel further includes a pixel defining layer and a first planarization layer. The pixel defining layer is provided on a side of the plurality of anodes away from the substrate. The pixel defining layer is provided with a plurality of second openings, and at least part region of each anode is exposed by a second opening. The first planarization layer is in contact with surfaces of the plurality of anodes proximate to the substrate. The first planarization layer is provided with overlapping holes, and the connecting portion of the anode is connected to the overlapping portion through an overlapping hole. A minimum distance between an orthographic projection of a boundary of the overlapping hole on the substrate and an orthographic projection of a boundary of the second opening on the substrate is greater than or equal to a first preset value.
In some embodiments, the main body portion of the red anode, the main body portion of the blue anode, the main body portion of the first green anode, and the main body portion of the second green anode are each substantially in a shape of a circle or an ellipse; alternatively, of the main body portion of the red anode and the main body portion of the blue anode, one is substantially in a shape of a rhombus and the other is substantially in a shape of a fan; and the main body portion of the first green anode and the main body portion of the second green anode are each substantially in a shape of a rectangle; alternatively, an outer contour of one of the main body portion of the red anode and the main body portion of the blue anode includes a first curved edge and a second curved edge that are connected at ends, two connection points of the first curved edge and the second curved edge are a first connection point and a second connection point, a connection line between the first connection point and the second connection point is a first line segment, and the first curved edge and the first line segment form a semicircle, and the second curved edge and the first line segment form a semiellipse; the other of the main body portion of the red anode and the main body portion of the blue anode is substantially in a shape of a circle or an ellipse; and the main body portion of the first green anode and the main body portion of the second green anode are each substantially in a shape of a circle or an ellipse.
In some embodiments, in a case where the plurality of anodes includes first anodes, the first anodes include the red anodes and the blue anodes; and in a case where the plurality of anodes includes second anodes, the second anodes include the first green anodes and the second green anodes.
In another aspect, a display apparatus is provided. The display apparatus includes the display panel according to any of the above embodiments.
In order to describe technical solutions in the present disclosure more clearly, the accompanying drawings to be used in some embodiments of the present disclosure will be introduced briefly; however, the accompanying drawings to be described below are merely drawings of some embodiments of the present disclosure, and a person of ordinary skill in the art can obtain other drawings according to those drawings. In addition, the accompanying drawings in the following description may be regarded as schematic diagrams, but are not limitations on actual sizes of products, actual processes of methods and actual timings of signals involved in the embodiments of the present disclosure.
The technical solutions in some embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings; however, the described embodiments are merely some but not all embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on embodiments of the present disclosure shall be included in the protection scope of the present disclosure.
Unless the context requires otherwise, throughout the specification and the claims, the term “comprise” and other forms thereof such as the third-person singular form “comprises” and the present participle form “comprising” are construed as an open and inclusive meaning, i.e., “including, but not limited to.” In the description of the specification, the terms such as “one embodiment,” “some embodiments,” “exemplary embodiments,” “example,” “specific example,” or “some examples” are intended to indicate that specific features, structures, materials, or characteristics related to the embodiment(s) or example(s) are included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment(s) or example(s). In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any suitable manner.
The terms “first” and “second” are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of indicated technical features. Thus, features defined with “first” or “second” may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the term “a plurality of (or multiple)” means two or more unless otherwise specified.
In the description of some embodiments, the terms “connected” and “electrically connected” and their derivatives may be used. For example, the term “connected” may be used in the description of some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content herein. As another example, the term “electrically connected” may be used in the description of some embodiments to indicate that two or more components are in direct physical contact or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content herein.
The phrase “at least one of A, B, and C” has the same meaning as the phrase “at least one of A, B, or C”, both including the following combinations of A, B, and C: only A, only B, only C, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.
The phrase “A and/or B” includes the following three combinations: only A, only B, and a combination of A and B.
The use of the phrase “applicable to” or “configured to” herein means an open and inclusive expression, which does not exclude devices that are applicable to or configured to perform additional tasks or steps.
In addition, the use of the phrase “based on” is meant to be open and inclusive, since a process, step, calculation or other action that is “based on” one or more of the stated conditions or values may, in practice, be based on or according to additional conditions or values exceeding those stated.
The term such as “about,” “substantially,” and “approximately” as used herein includes a stated value and an average value within an acceptable range of deviation of a particular value. The acceptable range of deviation is determined by a person of ordinary skill in the art, considering measurement in question and errors associated with measurement of a particular quantity (i.e., limitations of a measurement system).
The term such as “parallel,” “perpendicular,” or “equal” as used herein includes a stated condition and a condition similar to the stated condition. A range of the similar condition is within an acceptable deviation range, and the acceptable deviation range is determined by a person of ordinary skill in the art, considering measurement in question and errors associated with measurement of a particular quantity (i.e., the limitations of a measurement system). For example, the term “parallel” includes absolute parallelism and approximate parallelism, and an acceptable range of deviation of the approximate parallelism may be, for example, a deviation within 5°; the term “perpendicular” includes absolute perpendicularity and approximate perpendicularity, and an acceptable range of deviation of the approximate perpendicularity may also be, for example, a deviation within 5°; and the term “equal” includes absolute equality and approximate equality, and an acceptable range of deviation of the approximate equality may be, for example, that a difference between two equals is less than or equal to 5% of either of the two equals.
It will be understood that, when a layer or element is referred to as being on another layer or substrate, it may be that the layer or element is directly on the another layer or substrate, or it may be that intervening layer(s) exist between the layer or element and the another layer or substrate.
Exemplary embodiments are described herein with reference to sectional views and/or plan views that are schematic illustrations of idealized embodiments. In the accompanying drawings, thicknesses of layers and areas of regions are enlarged for clarity. Thus, variations in shape with respect to the accompanying drawings due to, for example, manufacturing technologies and/or tolerances may be envisaged. Therefore, the exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but including shape deviations due to, for example, manufacturing. For example, an etched region shown to have a rectangular shape generally has a curved feature. Therefore, the regions shown in the accompanying drawings are schematic in nature, and their shapes are not intended to show actual shapes of the regions in a device, and are not intended to limit the scope of the exemplary embodiments.
Transistors used in pixel circuits provided in embodiments of the present disclosure may be field effect transistors (metal oxide semiconductor, MOS for short) such as thin film transistors (TFT), or other switching devices having the same characteristics, and the embodiments of the present disclosure are described by taking the thin film transistors as an example.
In this text, a control electrode of each thin film transistor used in a pixel driving circuit (pixel circuit) is a gate of the transistor, a first electrode is one of a source and a drain of the thin film transistor, and a second electrode is the other one of the source and the drain of the thin film transistor. Since the source and the drain of the thin film transistor may be symmetrical in structure, there may be no difference in structure between the source and the drain thereof. That is, the first electrode and the second electrode of the thin film transistor in the embodiments of the present disclosure may be indistinguishable in structure. For example, in a case where a thin film transistor is a P-type transistor, a first electrode of the thin film transistor is a source, and a second electrode of the thin film transistor is a drain. For example, in a case where a thin film transistor is an N-type transistor, a first electrode of the transistor is a drain, and a second electrode of the transistor is a source.
In the pixel driving circuit (pixel circuit) provided by the embodiments of the present disclosure, a capacitor may be a capacitor device individually fabricated by a process, for example, by fabricating specialized capacitive electrodes to realize the capacitor device, and the individual capacitive electrodes of the capacitor may be realized by a metal layer, a semiconductor layer (e.g., doped polycrystalline silicon), or the like. Alternatively, the capacitor may be realized by using a parasitic capacitance between transistors, or may be realized by the transistors themselves with other devices and lines, or may be realized by using a parasitic capacitance between the lines of the circuit itself.
As shown in
In some embodiments, referring to
For example, as shown in
Here, the type of the display panel 100 varies, which may be set according to actual needs.
For example, the display panel 100 may be an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, or the like, which is not specifically limited in the present disclosure.
Some embodiments of the present disclosure are schematically described below by considering an example in which the display panel 100 is an OLED display panel.
In some embodiments, referring to
Here, as shown in
As shown in
Here, the display area A is an area for displaying images, and is configured to allow a plurality of sub-pixels P to be arranged therein; and the peripheral area B is an area where no image is displayed, and is configured to allow display driving circuits to be arranged therein, such as a gate driving circuit and a source driving circuit.
For example, referring to
The type of the substrate 11 may vary, which may be set according to actual needs.
For example, the substrate 11 may be a rigid substrate. The rigid substrate may be, for example, a glass substrate or a polymethyl methacrylate (PMMA) substrate.
For example, the substrate 11 may be a flexible substrate. The flexible substrate may be, for example, a polyethylene terephthalate (PET) substrate, a polyethylene naphthalate two formic acid glycol ester (PEN) substrate, or a polyimide (PI) substrate.
Here, referring to
The first color, the second color and the third color are three primary colors. For example, the first color is red, the second color is blue and the third color is green. The following will take the first color as red, the second color as blue, and the third color as green as an example to illustrate the embodiments of the present disclosure.
In addition, referring to
As shown in
It will be noted that the above-mentioned source 432 and drain 433 can be interchanged. That is, the reference character of “432” in
As shown in
In some embodiments, referring to
As shown in
As shown in
In this way, a portion, which forms a light-emitting region, of an anode 31 can be staggered with a portion, which is electrically connected to a pixel circuit 40, of the anode 31, thereby improving the flatness of the portion of the anode 31 forming the light-emitting region, i.e., improving the flatness of the light-emitting device 30.
In some embodiments, referring to
In some embodiments, referring to
The structure of the pixel circuit 40 may vary, which may be set according to actual needs. For example, the structure of the pixel circuit 40 may be a structure of “2T1C”, “3T1C”, “6T1C”, “7C”, “6T2C”, or “7T2C”, where “T” represents a transistor, a number before “T” represents the number of thin film transistors, “C” represents a storage capacitor, and a number before “C” represents the number of storage capacitors.
Here, during the use of the display panel 100, stabilities of the transistors in the pixel circuit 40 and the light-emitting device 30 may decrease (for example, a threshold voltage of the driving transistor drifts), which affects a display effect of the display panel 100, so that the pixel circuit 40 needs to be compensated.
There are various methods to compensate the pixel circuit 40, which may be set according to actual needs. For example, a pixel compensation circuit may be provided in the pixel circuit 40, so as to use the pixel compensation circuit to perform an internal compensation for the pixel circuit 40. As another example, the driving transistor or the light-emitting device can be sensed through a thin film transistor within the pixel circuit 40, and sensed data may be transmitted to an external sensing circuit, so as to use the external sensing circuit to calculate a driving voltage value that needs to be compensated and give feedback, thereby achieving an external compensation for the pixel circuit 40.
The structure and an operating process of the pixel circuit 40 will be schematically illustrated by taking an example in which an internal compensation method is adopted and the pixel circuit 40 adopts a “7T1C” structure in the present disclosure.
For example, as shown in
A control electrode of the first transistor T1 is electrically connected to a scanning signal terminal GATE, a first electrode of the first transistor T1 is electrically connected to a second electrode of the driving transistor Td, and a second electrode of the first transistor T1 is electrically connected to a control electrode of the driving transistor Td.
A control electrode of the second transistor T2 is electrically connected to the scanning signal terminal GATE, a first electrode of the second transistor T2 is electrically connected to a data signal terminal DATA, and a second electrode of the second transistor T2 is electrically connected to a first electrode of the driving transistor Td.
A control electrode of the third transistor T3 is electrically connected to a reset signal terminal RESET, a first electrode of the third transistor T3 is electrically connected to an initialization signal terminal VINIT, and a second electrode of the third transistor T3 is electrically connected to the control electrode of the driving transistor Td.
A control electrode of the fourth transistor T4 is electrically connected to an enable signal terminal EM, a first electrode of the fourth transistor T4 is electrically connected to a first voltage signal terminal VDD, and a second electrode of the fourth transistor T4 is electrically connected to the first electrode of the driving transistor Td.
A control electrode of the fifth transistor T5 is electrically connected to the enable signal terminal EM, a first electrode of the fifth transistor T5 is electrically connected to the second electrode of the driving transistor Td, and a second electrode of the fifth transistor T5 is electrically connected to the anode 31 of the light-emitting device 30 (referring to
A control electrode of the sixth transistor T6 is electrically connected to the scanning signal terminal GATE, a first electrode of the sixth transistor T6 is electrically connected to the initialization signal terminal VINIT, and a second electrode of the sixth transistor T6 is electrically connected to the anode 31 of the light-emitting device 30 (referring to
A first electrode plate of the storage capacitor C is electrically connected to the control electrode of the driving transistor Td, and a second electrode plate of the storage capacitor C is electrically connected to the first voltage signal terminal VDD.
In the related art, the flatness of the anode of the light-emitting device is low, and the direction of the light emitted by the light-emitting device will deviate, causing problems of color separation and color cast generated in the display apparatus, and the display effect will be reduced.
In light of this, in the display panel 100 provided by some embodiments of the present disclosure, referring to
As shown in
In the same pixel circuit group 400, a first pixel circuit 410 is symmetrical with a second pixel circuit 420 about a first axis S1, where the first axis S1 extends along a first direction X, and the first direction X is a column direction in which the plurality of pixel circuits 40 are arranged.
On this basis, as shown in
It will be noted that the above-mentioned overlapping portion 44 may include a drain 433 of at least one thin film transistor 43 in the pixel circuit 40 (referring to
Here, an overlapping portion 44 of the first pixel circuit 410 is a first overlapping portion 441, and an overlapping portion 44 of the second pixel circuit 420 is a second overlapping portion 442. Along a second direction Y, a minimum distance between the first overlapping portion 441 and the second overlapping portion 442 in the same pixel circuit group 400 is a first distance L1, where the second direction Y is a row direction in which the plurality of pixel circuits 40 are arranged. Along the second direction Y, a minimum distance between a first overlapping portion 441 and a second overlapping portion 442 that belong to different pixel circuit groups 400 and are adjacent is a second distance L2. The first distance L1 is less than the second distance L2.
It can be seen from the above that in the second direction Y, the minimum distance between the first overlapping portion 441 and the second overlapping portion 442 in the same pixel circuit group 400 is less than the minimum distance between the first overlapping portion 441 and the second overlapping portion 442 that belong to different pixel circuit groups 400 and are adjacent. In this way, in the second direction Y, the distance between the first overlapping portion 441 and the second overlapping portion 442 that belong to different pixel circuit groups 400 and are adjacent is relatively large, so a light-emitting device 30 is capable of being arranged between the first overlapping portion 441 and the second overlapping portion 442 that belong to different pixel circuit groups 400 and are adjacent, and a region where the light-emitting device 30 is capable of being arranged is expanded, which is beneficial to adjusting a position of the light-emitting device 30, so that a minimum distance between the overlapping hole 141 and the light-emitting device 30 is increased, thereby improving the flatness of the light-emitting device 30 and weakening the deviation in the direction of the light emitted by the light-emitting device 30, making the display brightness of the display panel 100 more uniform, and ameliorating the problems of the color separation and color cast generated in the display panel 100 to improve the display effect.
In some embodiments, as shown in
For the first pixel circuit 410 and the second pixel circuit 420 located in the same pixel circuit group 400, a minimum distance between an active layer pattern 41 of the first pixel circuit 410 and an active layer pattern 41 of the second pixel circuit 420 is a third distance L3. For the first pixel circuit 410 and the second pixel circuit 420 that belong to different pixel circuit groups 400 and are adjacent, a minimum distance between an active layer pattern 41 of the first pixel circuit 410 and an active layer pattern 41 of the second pixel circuit 420 is a fourth distance L4. The third distance L3 is less than the fourth distance L4.
In this case, the minimum distance between the first overlapping portion 441 and the second overlapping portion 442 that belong to different pixel circuit groups 400 and are adjacent can be further increased, thereby further enlarging the region where the light-emitting device 30 (referring to
For example, as shown in
In this text, the red anode 311 refers to an anode 31 corresponding to a sub-pixel P that can emit light with a color of red; the blue anode 312 refers to an anode 31 corresponding to a sub-pixel P that can emit light with a color of blue; the first green anode 313 refers to an anode 31 corresponding to a sub-pixel P that can emit light with a color of green; and the second green anode 314 refers to an anode 31 corresponding to a sub-pixel P that can emit light with a color of green.
For example, the plurality of light-emitting devices 30 include light-emitting device 30 for emitting light with a color of red, light-emitting devices 30 for emitting light with a color of blue, and light-emitting devices 30 for emitting light with a color of green.
In this case, the red anode 311 refers to an anode 31 included in a light-emitting device 30 for emitting light with a color of red; the blue anode 312 refers to an anode 31 included in a light-emitting device 30 for emitting light with a color of blue; the first green anode 313 refers to an anode 31 included in a light-emitting device 30 for emitting light with a color of green; and the second green anode 314 refers to an anode 31 included in a light-emitting device 30 for emitting light with a color of green.
As another example, the light emitted by the light-emitting devices 30 is all white light.
In this case, referring to
As shown in
Moreover, the main body portions 310 of the multiple red anodes 311 are alternately arranged with the main body portions 310 of the multiple first green anodes 313 in a first oblique direction Z1, and are alternately arranged with the main body portions 310 of the multiple second green anodes 314 in a second oblique direction Z2; and the main body portions 310 of the multiple blue anodes 312 are alternately arranged with the main body portions 310 of the multiple first green anodes 313 in the second oblique direction Z2, and are alternately arranged with the main body portions 310 of the multiple second green anodes 314 in the first oblique direction Z2.
It will be noted that any two of the first oblique direction Z1, the second oblique direction Z2, the first direction X and the second direction Y intersect.
In this case, a pixel unit includes one light-emitting device 30 for emitting light with a color of red, one light-emitting device 30 for emitting light with a color of blue, and two light-emitting devices 30 for emitting light with a color of green, which may improve the display effect of the display panel 100.
In some examples, as shown in
In some examples, as shown in
That is to say, in the first direction X, a main body portion 310 of a red anode 311 or a main body portion 310 of a blue anode 312 may be arranged between two first overlapping portions 441 adjacent in the same pixel circuit group 400; and in the second direction Y, a main body portion 310 of a first green anode 313 or a main body portion 310 of a second green anode 314 may be arranged between a first overlapping portion 441 and a second overlapping portion 442 that belong to different pixel circuit groups 400 and are adjacent. With this arrangement, a minimum distance between each light-emitting device 30 (referring to
For example, as shown in
Referring to
It will be noted that in order to reduce process difficulty, an area of a main body portion 310 of the anode 31 is greater than an area of the second opening 132 of the pixel defining layer 13, so that the entire second opening 132 of the pixel defining layer 13 serves as a light-emitting region. That is, an overlapping part of the anode 31, the cathode 33, and the light-emitting functional layer 32 constitute the light-emitting region.
Here, the shape of the main body portion 310 of the anode 31 and the shape of the second opening 132 of the pixel defining layer 13 may be substantially the same or different, which are not specifically limited in the embodiments of the present disclosure.
As shown in
It will be noted that an orthographic projection of the overlapping hole 141 on the substrate 11 at least partially overlaps with an orthographic projection of the overlapping portion 44 on the substrate 11. For example, the orthographic projection of the overlapping hole 141 on the substrate 11 is located within the orthographic projection of the overlapping portion 44 on the substrate 11 to increase the connection area of the connecting portion 320 and the overlapping portion 44, improve the reliability of the connection between the connecting portion 320 and the overlapping portion 44, and reduce the resistance.
Here, a minimum distance between an orthographic projection of a boundary of the overlapping hole 141 on the substrate 11 and an orthographic projection of a boundary of the second opening 132 on the substrate 11 is greater than or equal to a first preset value.
It will be noted that the first preset value may range from 8.5 μm to 11.5 μm. For example, the first preset value is any one of 8.5 μm, 9 μm, 9.5 μm, 10 μm, 10.5 μm, 11 μm, and 11.5 μm.
Here, the minimum distance between the orthographic projection of the boundary of the overlapping hole 141 on the substrate 11 and the orthographic projection of the boundary of the second opening 132 on the substrate 11 is greater than or equal to the first preset value, so that a portion of the main body portion 310 of the anode 31 exposed by the second opening 132 has a high flatness. That is, the light-emitting device 30 has a high flatness, thereby weakening the deviation in the direction of the light emitted by the light-emitting device 30, making the display brightness of the display panel 100 more uniform, ameliorating the problems of color separation and color cast generated in the display panel 100, and enhancing the display effect.
It can be understood that the shapes of the main body portion 310 of the red anode 311, the main body portion 310 of the blue anode 312, the main body portion 310 of the first green anode 313 and the second green anode 314 are each not invariable.
In some examples, as shown in
The term “substantially in a shape of a rhombus” herein means that a structure is in a shape of a rhombus as a whole, but is not limited to a standard rhombus. That is, “rhombus” here includes not only a standard rhombus but also a shape similar to a rhombus in consideration of process conditions. For example, a rhombus with corners that are curved, that is, the corners are smooth.
The term “substantially in a shape of a fan” herein means that a structure is in a shape of a fan as a whole, but is not limited to a standard fan. That is, “fan” here includes not only a standard fan but also a shape similar to a fan in consideration of process conditions. For example, a fan with an arc-shaped edge whose part is a straight line segment.
The term “substantially in a shape of a rectangle” herein means that a structure is in a shape of a rectangle as a whole, but is not limited to a standard rectangle. That is, “rectangle” here includes not only a standard rectangle but also a shape similar to a rectangle in consideration of process conditions. For example, a rectangle with corners that are curved, that is, the corners are smooth.
For example, as shown in
As another example, as shown in
In some other examples, as shown in
The term “substantially in a shape of a circle or an ellipse” herein means that a structure is in a shape of a circle or an ellipse as a whole, but is not limited to a standard circle or an ellipse. That is, “circle or ellipse” here includes not only a standard circle or ellipse but also a shape similar to a circle or an ellipse in consideration of process conditions. For example, a circle or an ellipse with a local segment that is a straight line.
In some other examples, as shown in
Here, a connection line between the first connection point and the second connection point is a first line segment M1, and the first curved edge B1 and the first line segment M1 form a semicircle, and the second curved edge B2 and the first line segment M1 form a semiellipse. The other of the main body portion 310 of the red anode 311 and the main body portion 310 of the blue anode 312 is substantially in a shape of a circle or an ellipse. The main body portion 310 of the first green anode 313 and the main body portion 310 of the second green anode 314 are each substantially in a shape of a circle or an ellipse.
For example, as shown in
As another example, as shown in
In some embodiments, referring to
As shown in
In some examples, as shown in
In some other examples, as shown in
On this basis, as shown in
In this case, for regions where the orthographic projection of the main body portion 310 of the first anode 315 on the substrate 11 overlaps with the orthographic projections of the power supply signal lines VL on the substrate 11, in the second direction Y, a maximum distance of each region from the first axis S1 is approximately the same, and a minimum distance of each region from the first axis S1 is approximately the same. In this way, heights of two sides of the main body portion 310 of the first anode 315 in the second direction Y may be balanced, and the flatness of the main body portion 310 of the first anode 315 may be improved.
Furthermore, with reference to
It will be noted that in a case where the plurality of anodes 31 includes multiple red anodes 311, multiple blue anodes 312, multiple first green anodes 313 and multiple second green anodes 314, the above-mentioned first anodes 315 may include the red anodes 311 and the blue anodes 312.
For example, referring to
In this case, the regions where the orthographic projection of the main body portion 310 of the first anode 315 on the substrate 11 (referring to
In some embodiments, as shown in
With this arrangement, edges on opposite sides of the main body portion 310 of the first anode 315 in the second direction Y may each be supported by a power supply signal line VL, so that the heights of the two sides of the main body portion 310 of the first anode 315 in the second direction Y have a better consistency, and the flatness of the main body portion 310 of the first anode 315 is higher.
In some embodiments, as shown in
As shown in
As shown in
In this case, the power supply signal line VL are staggered with overlapping portions 44, which is beneficial to the electrical connection between an anode 31 and an overlapping portion 44 of a pixel circuit 40.
In some embodiments, as shown in
As shown in
On this basis, as shown in
In this case, for regions where the orthographic projection of the main body portion 310 of the second anode 316 on the substrate 11 overlaps with the orthographic projections of the data lines DL on the substrate 11, in the second direction Y, a maximum distance of each region from the second axis S2 is approximately the same, and a minimum distance of each region from the second axis S2 is approximately the same. In this way, heights of two sides of the main body portion 310 of the second anode 316 in the second direction Y may be balanced, and the flatness of the main body portion 310 of the second anode 316 may be improved.
Furthermore, with reference to
It will be noted that in a case where the plurality of anodes 31 includes multiple red anodes 311, multiple blue anodes 312, multiple first green anodes 313 and multiple second green anodes 314, the above-mentioned second anodes 316 may include the first green anodes 313 and the second green anodes 314.
For example, referring to
In this case, regions, where the orthographic projection of the main body portion 310 of the second anode 316 on the substrate 11 (referring to
In some embodiments, as shown in
In addition, the two data lines DL of the first data line group DL10 are located between the two power supply signal lines VL of the second power supply signal line group VL20. And the orthographic projection of the main body portion 310 of the second anode 316 on the substrate 11 further overlaps with orthographic projections of the two power supply signal lines VL of the second power supply signal line group VL20 on the substrate 11.
In this case, the power supply signal lines VL may further provide the effect of supporting the two sides of the main body portion 310 of the second anode 316 in the second direction Y and balancing the heights of the two sides of the main body portion 310 of the second anode 316 in the second direction Y, so that the heights of the two sides of the main body portion 310 of the second anode 316 in the second direction Y may be further balanced, and the flatness of the main body portion 310 of the second anode 316 is improved.
Furthermore, the orthographic projection of the main body portion 310 of the second anode 316 on the substrate 11 is located between orthographic projections of two edges, away from each other, of the two power supply signal lines VL of the second power supply signal line group VL20 on the substrate 11.
With this arrangement, edges on opposite sides of the main body portion 310 of the second anode 316 in the second direction Y may each be supported by a power supply signal line VL, so that the heights of the two sides of the main body portion 310 of the second anode 316 in the second direction Y have a better consistency, and the flatness of the main body portion 310 of the second anode 316 is higher.
In some embodiments, referring to
As shown in
As shown in
For example, as shown in
That is, bent segments DL12 of the two data lines DL of the first data line group DL10 are bent in a direction away from each other to form an avoidance region. The avoidance region may be configured as a light-transparent region for light collection of functional devices on the non-light-exit side of the display panel 100.
For example, the display panel 100 further includes functional devices that need to collect external ambient light and are integrated on the non-light-exit side of the display panel 100. Here, the functional devices may include fingerprint recognition units, a photosensitive device and other functional components.
On this basis, referring to
It should be understood that the power supply signal lines VL and the data lines DL may be provided to be in a same layer or located in different layers. The following is an exemplary description of the pixel circuits 40, the power supply signal lines VL, and the data lines DL mentioned above in terms of the power supply signal lines VL and the data lines DL being in different layers, and in conjunction with the film layer structure of the display panel 100.
As shown in
Here, active layer patterns 41 are located in the active layer ACT; gates 434 (control electrodes) of the thin film transistors 43 and first electrode plates of the storage capacitors C are located in the first gate conductive layer GT1; second electrode plates of the storage capacitors C are located in the second gate conductive layer GT2; and overlapping portions 44 may each be in a structure of stacked layers and are located in at least a part of the active layer ACT, the first gate conductive layer GT1, the second gate conductive layer GT2, the first source-drain conductive layer SD1, and the second source-drain conductive layer SD2.
It will be noted that among the active layer ACT, the first gate conductive layer GT1, the second gate conductive layer GT2, the first source-drain conductive layer SD1 and the second source-drain conductive layer SD2, every adjacent two layers is provided with an insulating film layer therebetween.
For example, referring to
Here, the first gate insulating layer G11 is provided between the active layer ACT and the first gate conductive layer GT1. The second gate insulating layer G12 is provided between the first gate conductive layer GT1 and the second gate conductive layer GT2. The interlayer insulating layer ILD is provided between the second gate conductive layer GT2 and the first source-drain conductive layer SD1. The second planarization layer 16 is provided between the first source-drain conductive layer SD1 and the second source-drain conductive layer SD2.
On this basis, referring to
In some embodiments, the display panel 100 further includes a third source-drain conductive layer, and the third source-drain conductive layer is located between the first source-drain conductive layer SD1 and the second source-drain conductive layer SD2.
On this basis, the plurality of data lines DL may be located in the first source-drain conductive layer SD1 and/or the third source-drain conductive layer; and/or the plurality of power supply signal lines VL may be located in the second source-drain conductive layer SD2.
In some embodiments, as shown in
In some examples, referring to
In some other examples, referring to
Referring to
Here, referring to
In addition, the size of the third opening 521 of the black matrix 52 may be greater than the size of the second opening 132 of the pixel defining layer 13, or may be smaller than the size of the second opening 132 of the pixel defining layer 13.
For example, as shown in
In a case where the display panel 100 further includes functional devices, the black matrix 52 further has a plurality of fourth openings 522, and a fourth opening 522 exposes at least part of a first opening 131.
Here, referring to
In addition, the size of the fourth opening 522 of the black matrix 52 may be larger than the size of the first opening 131 of the pixel defining layer 13, or may be smaller than the size of the first opening 131 of the pixel defining layer 13.
For example, as shown in
Referring to
It will to be noted that the material of the above-described light filtering portion 530 includes an organic material. For example, the material of the light filtering portion 530 includes polymethyl methacrylate, general-purpose polymers of polystyrene, polymer derivatives having phenol-like groups, acryloyl polymers, imide polymers, aryl ether polymers, amide polymers, fluorine polymers, paraxylene polymers, or vinyl alcohol polymers.
Referring to
It will be noted that referring to
For example, as shown in
In this case, referring to
As shown in
Here, the shape of the red light filtering portion 531 may be substantially the same as the shape of the main body portion 310 of the red anode 311; the shape of the blue light filtering portion 532 may be substantially the same as the shape of the main body portion 310 of the blue anode 312; the shape of the first green light filtering portion 533 may be substantially the same as the shape of the main body portion 310 of the first green anode 313; and the shape of the second green light filtering portion 534 may be substantially the same as the shape of the main body portion 310 of the second green anode 314.
The foregoing description is only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements that a person skilled in the art could conceive of within the technical scope of the present disclosure shall be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
This application is the United States national phase of International Patent Application No. PCT/CN2022/120007 filed Sep. 20, 2022, the disclosure of which is hereby incorporated by reference in its entirety.
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/CN2022/120007 | 9/20/2022 | WO |