Display panel and display device

Abstract

The present disclosure provides a display panel and a display device, relating to the field of display technologies, and capable of improving the display effect of the display device. The display panel includes a first light-emitting device, a first driving circuit, a second light-emitting device, and a second driving circuit. The first light-emitting device is located in a first display area. The first driving circuit drives a plurality of first light-emitting devices to emit light by means of active driving; the first driving circuit includes a plurality of pixel driving circuits and signal lines coupled to the plurality of pixel driving circuits. The signal lines are located in a second display area, extend along an edge of the second display area close to the first display area, and there is a gap between a positive projection of the signal lines on the substrate and a positive projection of the first display area on the substrate. A plurality of second light-emitting devices are located in the second display area. The second driving circuit drives the second light-emitting devices to emit light by means of passive driving. A positive projection of at least one second light-emitting device among the plurality of second light-emitting devices on the substrate overlaps with a positive projection of the gap on the substrate.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to a display panel and a display device. Background Art

[0002] An organic light-emitting diode (OLED), also known as organic electroluminescent display and organic light-emitting semiconductor, can be used to fabricate an OLED display device when applied to a display device. Since the OLED display device has excellent characteristics such as self-luminescence, no need for a backlight, high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, and relatively simple structure and manufacturing process, it is considered the mainstream development direction of the next-generation display device. Summary of the Invention

[0003] Embodiments of the present invention provide a display panel and a display device, which can improve the display effect of the display device.

[0004] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0005] On the one hand, a display panel is provided. The display panel includes a substrate, a plurality of first light-emitting devices, a first driving circuit, a plurality of second light-emitting devices, and a second driving circuit. The plurality of first light-emitting devices are disposed on the substrate and located in the first display area. The first driving circuit is disposed on the substrate, and the first driving circuit is coupled to the plurality of first light-emitting devices and configured to drive the plurality of first light-emitting devices to emit light in an active driving manner; the first driving circuit includes a plurality of pixel driving circuits and signal lines coupled to the plurality of pixel driving circuits, the signal lines are located in the second display area, the signal lines extend substantially along the edge of the second display area close to the first display area, the signal lines are configured to be coupled to pixel driving circuits located on opposite sides of the second display area, and there is a gap between the orthographic projection of the signal lines on the substrate and the orthographic projection of the first display area on the substrate. The plurality of second light-emitting devices are disposed on the substrate and located in the second display area. The second driving circuit is disposed on the substrate, and the second driving circuit is coupled to the plurality of second light-emitting devices and configured to drive the plurality of second light-emitting devices to emit light in a passive driving manner. At least one of the plurality of second light-emitting devices has an orthographic projection on the substrate that overlaps with the orthographic projection of the gap on the substrate.

[0006] In some embodiments, the first display area includes a first sub-area and two second sub-areas disposed opposite to each other along a first direction, and the second sub-areas are located between the first sub-area and the second display area. The length of the second sub-area is substantially equal to the length of the second display area. The length direction of the second sub-area is along a second direction, and the second direction is perpendicular to the first direction.

[0007] Along the first direction, the minimum distance between any two first light-emitting devices in the first sub-area is less than the minimum distance between any two first light-emitting devices in the second sub-area.

[0008] In some embodiments, along the first direction, the first light-emitting devices in the first sub-area are arranged at equal intervals, and the distances between adjacent first light-emitting devices in the second sub-area are sequentially increased.

[0009] In some embodiments, the positive projection of the pixel driving circuit coupled to the first light-emitting device closer to the second display area on the substrate overlaps with the positive projection of the gap on the substrate.

[0010] In some embodiments, in the first display area, the plurality of first light-emitting devices form a plurality of first display units and a plurality of second display units. Compared with the plurality of first display units, the plurality of second display units are closer to the second display area. Both the first display unit and the second display unit include the plurality of first light-emitting devices with the light-emitting colors of the three primary colors, where the light-emitting color of each first light-emitting device is one of the three primary colors. The first display unit includes four of the first light-emitting devices; the second display unit includes three of the first light-emitting devices.

[0011] In some embodiments, the positive projection of the pixel driving circuit coupled to at least one of the first light-emitting devices in the second display unit on the substrate overlaps with the positive projection of the gap on the substrate.

[0012] In some embodiments, the positive projection of the first light-emitting device coupled to the pixel driving circuit whose positive projection on the substrate overlaps with the positive projection of the gap on the substrate does not overlap with the positive projection of the pixel driving circuit on the substrate.

[0013] In some embodiments, in the second display area, the plurality of second light-emitting devices form a plurality of third display units, and each third display unit includes the second light-emitting devices with the three primary colors as the emission colors, wherein the emission color of each second light-emitting device is one of the three primary colors, and the number of the second light-emitting devices included in each third display unit is the same as the number of the first light-emitting devices included in the second display unit.

[0014] In some embodiments, the first light-emitting device includes a first electrode and a second electrode which are oppositely arranged, and all the first light-emitting devices share a second electrode.

[0015] The second light-emitting device includes a third electrode and a fourth electrode which are oppositely arranged, and the second light-emitting devices in the plurality of third display units located in the same column share the same fourth electrode.

[0016] The first electrode and the third electrode are of the same layer and the same material, and the second electrode and the fourth electrode are of the same layer and the same material.

[0017] In some embodiments, the display panel further includes: a plurality of isolation structures disposed in the second display area; the isolation structures are configured to isolate adjacent second electrodes and fourth electrodes, and two adjacent fourth electrodes.

[0018] In some embodiments, when the orthographic projection of the pixel circuit coupled to at least one of the first light-emitting devices in the second display unit on the substrate overlaps with the orthographic projection of the gap on the substrate: along the first direction, the isolation structure includes a plurality of protrusions protruding toward the side away from the first display area.

[0019] In some embodiments, the isolation structure is an isolation column or an isolation groove.

[0020] In some embodiments, in the longitudinal section of the isolation column or the isolation groove, the bottom side length of the isolation column or the isolation groove is less than its top side length; wherein, the direction of the longitudinal section is along the first direction.

[0021] In some embodiments, the minimum distance between any adjacent first light-emitting device and second light-emitting device is less than or equal to 60 μm.

[0022] In some embodiments, the pixel driving circuit includes an initialization signal line extending along the first direction, and the signal line is configured to connect the initialization signal lines located on opposite sides of the second display area, and the opposite sides of the second display area are the opposite sides distributed along the extension direction of the initialization signal line.

[0023] In some embodiments, the first driving circuit further includes a scanning signal line configured to provide a scanning signal to the first driving circuit, and the scanning signal line extends in a first direction.

[0024] In some embodiments, the display panel further includes a first driving module and a second driving module. The first driving module is configured to provide a driving signal to the first driving circuit, and the second driving module is configured to provide a driving signal to the second driving circuit.

[0025] On the other hand, a display device is provided. The display device includes a display panel as described in any of the above embodiments.

[0026] Some embodiments of the present disclosure provide a display panel and a display device. The display panel includes a first driving circuit, a first light-emitting device, a second driving circuit, and a second light-emitting device. The first driving circuit includes a plurality of pixel driving circuits and signal lines coupled to the pixel driving circuits. The signal lines are located in a second display area and extend substantially along an edge of the second display area close to a first display area. At least one of the plurality of second light-emitting devices has a positive projection on the substrate that overlaps with the positive projection of a gap on the substrate. Since the signal line serves as one side edge of the gap, when the positive projection of the gap on the substrate overlaps with the positive projection of the second light-emitting device on the substrate, the positive projection of the signal line on the substrate also overlaps with the positive projection of the second light-emitting device on the substrate. On the one hand, on the premise that the minimum width of the gap between the positive projection of the first light-emitting device on the substrate and the positive projection of the signal line on the substrate is the same, the embodiments in the present disclosure reduce the minimum width of the gap between the first light-emitting device and the second light-emitting device by arranging the positive projection of the signal line on the substrate to overlap with the positive projection of the second light-emitting device on the substrate, so that there is no gap between the positive projection of the signal line on the substrate and the positive projection of the second light-emitting device on the substrate. On the other hand, the embodiments in the present disclosure reduce the minimum width of the gap between the first light-emitting device and the second light-emitting device further by arranging the positive projection of the signal line on the substrate to overlap with the positive projection of the second light-emitting device on the substrate and reducing the minimum width of the gap between the positive projection of the signal line on the substrate and the positive projection of the first light-emitting device on the substrate. In the embodiments of the present disclosure, since the minimum width of the gap between the first light-emitting device and the second light-emitting device can be set to be relatively small, it is helpful to reduce the minimum width of the gap between the first light-emitting device and the second light-emitting device to a size range that cannot be recognized by the human eye. Thus, even if the light emitted by the first light-emitting device and the second light-emitting device located on both sides of the gap cannot completely illuminate the gap, that is, the gap is still in a dark state, but since the minimum width of the gap is less than the recognition accuracy of the human eye, during the display process, the human eye cannot recognize the appearance of dark spots or dark lines at the gap between the first light-emitting device and the second light-emitting device, thereby improving the display effect of the display panel. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings required for some embodiments of the present disclosure. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams and do not limit the actual dimensions of the products involved in the embodiments of the present disclosure, the actual processes of the methods, the actual timings of the signals, etc.

[0028] Figure 1AA top view structural diagram of a display panel according to some embodiments of the present disclosure;

[0029] Figure 1B Another top view structural diagram of a display panel according to some embodiments of the present disclosure;

[0030] Figure 1C A longitudinal cross-sectional structural diagram of a first light-emitting device along a first direction according to some embodiments of the present disclosure;

[0031] Figure 1D Another top view structural diagram of a display panel according to some embodiments of the present disclosure;

[0032] Figure 1E A top view distribution structural diagram of a first light-emitting device and a second light-emitting device according to some embodiments of the present disclosure;

[0033] Figure 1F Another top view structural diagram of a display panel according to some embodiments of the present disclosure;

[0034] Figure 1G Another top view distribution structural diagram of a first light-emitting device and a second light-emitting device according to some embodiments of the present disclosure;

[0035] Figure 1H A top view coupling structure diagram of a signal line and an initialization signal line according to some embodiments of the present disclosure;

[0036] Figure 2A An equivalent circuit diagram of a pixel driving circuit and a first light-emitting device according to some embodiments of the present disclosure;

[0037] Figure 2B A top view design structural diagram of a pixel driving circuit according to some embodiments of the present disclosure;

[0038] Figure 2C A top view structural diagram of an active layer according to some embodiments of the present disclosure;

[0039] Figure 2D A top view structural diagram of a gate metal layer according to some embodiments of the present disclosure;

[0040] Figure 2E A top view structural diagram of a first metal layer according to some embodiments of the present disclosure;

[0041] Figure 2F A top view structural diagram of a second metal layer according to some embodiments of the present disclosure;

[0042] Figure 2G A top view structural diagram of a third metal layer according to some embodiments of the present disclosure;

[0043] Figure 2H A top view structure diagram of a first electrode according to some embodiments of the present disclosure;

[0044] Figure 2I A top view structure diagram of a first light-emitting functional pattern according to some embodiments of the present disclosure;

[0045] Figure 3A A top view structure diagram of a second electrode and a fourth electrode according to some embodiments of the present disclosure;

[0046] Figure 3B Another top view structure diagram of a second electrode and a fourth electrode according to some embodiments of the present disclosure;

[0047] Figure 4A An equivalent circuit diagram of a second driving circuit and a second light-emitting device according to some embodiments of the present disclosure;

[0048] Figure 4B A distributed top view structure diagram of a second driving circuit and a second light-emitting device according to some embodiments of the present disclosure;

[0049] Figure 5A A top view structure diagram of a display panel in the related art;

[0050] Figure 5B A top view distribution structure diagram of a first light-emitting device and a second light-emitting device in the related art;

[0051] Figure 6A and Figure 6B Another top view structure diagram of a display panel according to some embodiments of the present disclosure;

[0052] Figure 7A A longitudinal cross-sectional structure diagram of a display panel along a first direction according to some embodiments of the present disclosure;

[0053] Figure 7B A longitudinal cross-sectional view of an isolation structure along a first direction according to some embodiments of the present disclosure;

[0054] Figure 7C Another longitudinal cross-sectional view of an isolation structure along a first direction according to some embodiments of the present disclosure;

[0055] Figure 7D A top view structure diagram of an isolation structure according to some embodiments of the present disclosure;

[0056] Figure 8 Another top view structure diagram of a display panel according to some embodiments of the present disclosure. Detailed implementation manners

[0057] Next, in conjunction with the accompanying drawings, the technical solutions in some embodiments of the present disclosure will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0058] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular form "comprises" and the present participle form "comprising", are construed as open, inclusive meanings, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples", etc. are intended to indicate that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0059] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "a plurality" is two or more.

[0060] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. For example, when describing some embodiments, the term "connected" may be used to indicate that two or more components have direct physical contact or electrical contact with each other. Another example is that when describing some embodiments, the term "coupled" may be used to indicate that two or more components have direct physical contact or electrical contact. However, the term "coupled" or "communicatively coupled" may also mean that two or more components have no direct contact with each other, but still cooperate or interact with each other.

[0061] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0062] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0063] As used herein, depending on the context, the term "if" is optionally interpreted to mean "when", "at the time of", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined that..." or "if [the stated condition or event] is detected" is optionally interpreted to mean "when it is determined that...", "in response to determining...", "at the time of detecting [the stated condition or event]", or "in response to detecting [the stated condition or event]".

[0064] The use of "is applicable to" or "is configured to" herein means open and inclusive language, which does not exclude devices that are applicable to or configured to perform additional tasks or steps.

[0065] In addition, the use of "based on" means open and inclusive, because a process, step, calculation, or other action "based on" one or more of the stated conditions or values may, in practice, be based on additional conditions or values beyond the stated ones.

[0066] As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system).

[0067] As used herein, "same layer" refers to a specific pattern in a layer structure formed by the same evaporation process or patterning process. Depending on the different specific patterns, the same patterning process may include multiple exposure, development, or etching processes. And the specific patterns in the layer structure formed by the evaporation process or patterning process can be continuous or discontinuous, and these specific patterns may also be at different heights or have different thicknesses.

[0068] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views as idealized exemplary drawings. In the drawings, the thickness of layers and regions is exaggerated for clarity. Thus, variations in the shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Accordingly, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but include shape deviations caused by, for example, manufacturing. For example, an etched region shown as rectangular will generally have curved features. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to depict the actual shape of the regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0069] Embodiments of the present disclosure provide a display device, such as an OLED display device, which includes, for example, a display panel and a sensor. The sensor is, for example, a camera, a receiver, etc., and the sensor is mounted on the non-light-emitting side of the display panel. The non-light-emitting side is opposite to the light-emitting side, and the light-emitting side is the display side of the display panel. In some embodiments, the light-emitting side is the side where the cover plate of the display panel is located.

[0070] Exemplarily, referring to Figure 1A and Figure 1B , the display area of the display panel 1 includes a first display area 11 and a second display area 12. At least three sides of the second display area 12 are adjacent to the first display area 11. Among them, referring to Figure 1B , at least three sides of the second display area 12, for example, include a first side S1, a second side S2, and a third side S3, and the first side S1 and the third side S3 are disposed opposite to each other. The second display area 12 is configured to mount a sensor, that is, the above-mentioned sensor is mounted on the non-light-emitting side of the second display area 12.

[0071] When the camera is mounted on the non-light-emitting side of the second display area 12, the camera can be referred to as an under-screen camera. The under-screen camera utilizes the self-luminous property of the OLED display device and the property that the display panel 1 can be made transparent. In the second display area 12, when the OLED display device does not perform the photographing function, the second display area 12 can normally display the content on the screen. When the OLED display device performs the photographing function, the second display area 12 will present a transparent state, so that the ambient light from the outside can pass through the display panel 1 to reach the camera to achieve the photographing function.

[0072] Based on the above, referring to Figure 1A , the display panel 1 includes: a substrate, a plurality of first light-emitting devices 110, a first driving circuit, a plurality of second light-emitting devices 120, and a second driving circuit.

[0073] The substrate is, for example, a glass substrate or a flexible substrate. The material of the flexible substrate is, for example, polyimide (PI).

[0074] A plurality of first light-emitting devices 110 are disposed on a substrate and located in the first display area 11.

[0075] The first light-emitting device 110 is, for example, an OLED light-emitting device. Refer to Figure 1C , the first light-emitting device 110 includes, for example: a first electrode 1101 and a second electrode 1102 disposed opposite to each other, and a first light-emitting functional pattern 1103 located between the first electrode 1101 and the second electrode 1102.

[0076] The material of the first electrode 1101 is a transparent conductive material, such as indium tin oxide (ITO), the material of the second electrode 1102 is, for example, a metal, such as silver (Ag) or aluminum (Al), and the second electrode 1102 is, for example, a semi-transparent electrode.

[0077] The above-mentioned first light-emitting functional pattern 1103 at least includes a light-emitting pattern 1104, and the material of the light-emitting pattern 1104 is an organic light-emitting material, such as a fluorescent material. The first light-emitting functional pattern 1103 may further include one pattern or multiple patterns among an electron transport pattern 1105, an electron injection pattern 1106, a hole transport pattern 1107, and a hole injection pattern 1108. Figure 1C In

[0078] Refer to Figure 1D and Figure 1F , a first driving circuit 111 is disposed on the substrate 13, the first driving circuit 111 is coupled to a plurality of first light-emitting devices 110, and is configured to drive the plurality of first light-emitting devices 110 to emit light in an active driving manner. The first driving circuit 111 includes a plurality of pixel driving circuits and signal lines 1110 coupled to the plurality of pixel driving circuits. The signal lines 1110 are located in the second display area 12, the signal lines 1110 extend substantially along the edge of the second display area 12 close to the first display area 11, the signal lines 1110 are configured to be coupled to pixel driving circuits located on opposite sides of the second display area 12, and there is a gap between the orthographic projection of the signal lines 1110 on the substrate 13 and the orthographic projection of the first display area 11 on the substrate 13.

[0079] Refer to Figure 1D and Figure 1F , the signal lines 1110 are located outside the first display area 11 and inside the second display area 12, and there is a gap between the orthographic projection of the signal lines 1110 on the substrate 13 and the orthographic projection of the first display area 11 on the substrate 13. Among them, refer to Figure 1D, the width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first display area 11 on the substrate 13 is, for example, d. Refer to Figure 1F , the width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first display area 11 on the substrate 13 is, for example, d′, and d′ > d.

[0080] Refer to Figure 1H , the signal line 1110 extends substantially along the edge of the second display area 12 close to the first display area 11. Exemplarily, the signal line 1110 extends along the directions of the first side S1, the second side S2, and the third side S3 of the second display area 12. The signal line 1110 is configured to couple to pixel driving circuits located on opposite sides (such as the first side S2 and the third side S3) of the second display area 12, and provide the same signal, such as an initialization signal Vinit, to these pixel driving circuits.

[0081] Refer to Figure 1H , the pixel driving circuit 112 includes a horizontally extending initialization signal line Vinit, and the signal line 1110 is coupled to the initialization signal lines Vinit located on opposite sides of the second display area 12, where the opposite sides of the second display area 12 are the opposite sides of the second display area 12 distributed along the extending direction of the initialization signal line Vinit.

[0082] Refer to Figure 1H , the opposite sides of the second display area 12 are the opposite sides distributed along the first direction W.

[0083] Since each row of pixel driving circuits among the multiple pixel driving circuits located on opposite sides of the second display area 12 is coupled to two initialization signal lines Vinit, where part of the pixel driving circuits in each row located on one side of the second display area 12 is coupled to one initialization signal line Vinit, and the remaining part of the pixel driving circuits in each row is coupled to the other initialization signal line Vinit. When the signal line 1110 is coupled to the initialization signal lines Vinit located on opposite sides of the second display area 12, not only is the coupling relationship simple, but it also ensures that the signals on these initialization signal lines Vinit located on opposite sides of the second display area 12 are the same, and further ensures that the initialization signals Vinit received by the pixel driving circuits coupled to these initialization signal lines Vinit located on opposite sides of the second display area 12 are the same. Therefore, the signal line 1110 realizes the coupling to the pixel driving circuits located on opposite sides of the second display area 12 through the initialization signal lines Vinit located on opposite sides of the second display area 12.

[0084] Since in the display panel 1, the initial signals received by all the pixel driving circuits 112 are the same, the initialization signal lines of different rows can be coupled together. Also, since it is necessary to ensure the light transmittance of the second display area 12 and the material of the signal line 1110 is a metal material, during the setting, the initialization signal lines vinit located on the opposite sides of the second display area 12 are coupled together through the same signal line 1110, so as to reduce the number of signal lines 1110, reduce the area occupied by the signal line 1110 in the second display area 12, ensure the high light transmittance of the second display area 12, and also facilitate providing more space for installing sensors on the non-light-emitting side of the second display area 12.

[0085] Those skilled in the art can understand that since the signal line 1110 is coupled with the initialization signal line vinit, the signal transmitted on the signal line 1110 is the initialization signal Vinit.

[0086] Reference Figure 2A , for example, is the equivalent circuit diagram of the pixel driving circuit 112 and the first light-emitting device 110; wherein, the pixel driving circuit 112 includes: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, and a capacitor C. The first transistor T1 to the seventh transistor T7 are, for example, all P-type thin-film transistors or all N-type thin-film transistors. In the present disclosure, only the case where the first transistor T1 to the seventh transistor T7 are all P-type thin-film transistors is taken as an example for illustration, and the types of the first transistor T1 to the seventh transistor T7 are not limited thereby.

[0087] The gate of the first transistor T1 is coupled to the reset signal terminal Reset, the first pole is coupled to the initialization signal terminal Vinit, and the second pole is coupled to the node N.

[0088] The gate of the second transistor T2 is coupled to the gate driving signal terminal Gate, the first pole is coupled to the second pole of the third transistor T3, and the second pole is coupled to the node N.

[0089] The gate of the third transistor T3 is coupled to the node N, the first pole is coupled to the second pole of the fourth transistor T4, and the third transistor T3 is a driving transistor.

[0090] The gate of the fourth transistor T4 is coupled to the gate driving signal terminal Gate, and the first pole is coupled to the data signal terminal Data.

[0091] The gate of the fifth transistor T5 is coupled to the light emission control signal terminal EM, the first pole is coupled to the power supply voltage signal terminal VDD, and the second pole is coupled to the first pole of the third transistor T3.

[0092] The gate of the sixth transistor T6 is coupled to the light emission control signal terminal EM, the first pole is coupled to the second pole of the third transistor T3, the second pole is coupled to the first electrode 1101 in the first light-emitting device 110, and the second electrode 1102 in the first light-emitting device 110 is coupled to the power supply voltage signal terminal VSS. In some embodiments, the voltage signal VSS provided by the power supply voltage signal terminal VSS is, for example, 0V.

[0093] The gate of the seventh transistor T7 is coupled to the reset signal terminal Reset, the first pole is coupled to the initialization signal terminal Vinit, and the second pole is coupled to the second pole of the sixth transistor T6. The initialization signal Vinit provided by the initialization signal terminal Vinit is, for example, 0V.

[0094] One end of the capacitor C is coupled to the node N, and the other end is coupled to the power supply voltage signal terminal VDD. The power supply voltage signal VDD provided by the power supply voltage signal terminal VDD is, for example, 5V.

[0095] The operation process of the above pixel driving circuit 112 includes, for example, the following stages:

[0096] Reset stage: Under the control of the reset signal terminal Reset, the first transistor T1 and the seventh transistor T7 are turned on. The first transistor T1 transmits the initialization signal Vinit provided by the initialization signal terminal Vinit to the node N to reset the node N, and the seventh transistor T7 transmits the initialization signal Vinit provided by the initialization signal terminal Vinit to the first electrode 1101 of the first light-emitting device 110 to reset the first electrode 1101 of the first light-emitting device 110.

[0097] Data writing stage: Under the control of the gate driving signal terminal Gate, the second transistor T2 and the fourth transistor T4 are turned on. The fourth transistor T4 transmits the first data signal Data provided by the data signal terminal Data to the node N through the third transistor T3 and the second transistor T2 to start charging the capacitor C.

[0098] Light emission stage: Under the control of the light emission control signal terminal EM, the fifth transistor T5 and the sixth transistor T6 are turned on. Among them, the fifth transistor T5 transmits the power supply voltage signal VDD provided by the power supply voltage signal terminal VDD to the first pole of the third transistor T3. Under the control of the node N and the power supply voltage signal VDD, the second pole of the third transistor T3 outputs a driving signal to the first light-emitting device 110 through the sixth transistor T6 to drive the first light-emitting device 110 to emit light.

[0099] The initialization signal Vinit received by the above initialization signal terminal Vinit is provided by the initialization signal line Vinit. By way of example, refer to Figure 1H, all the initialization signal lines Vinit located on the opposite sides of the second display area 12 are coupled to the same signal line 1110, that is, the signal transmitted on the signal line 1110 is also the initialization signal Vinit; the other initialization signal lines Vinit located in the first display area 11 extend along the first direction W and are distributed along the second direction L, and the first direction W is perpendicular to the length direction L.

[0100] Reference Figure 2B is the design structure diagram (Lay out) of the pixel driving circuit 112. The specific structures and positions of the first transistor T1 to the seventh transistor T7 are as Figure 2B shown.

[0101] Among them, the first pole of the third transistor T3 in the pixel driving circuit 112 is electrically connected to the first electrode 1101. The gate of the third transistor T3 serves as the first electrode plate C1 of the capacitor C. The second electrode plate C2 of the capacitor C is disposed opposite to the first electrode plate C1 along the thickness direction of the display panel 1, and the second electrode plate C2 is of the same layer and the same material as the initialization signal line Vinit.

[0102] Exemplarily, the first transistor T1 and the second transistor T2 may also be double-gate thin-film transistors, and the two gates of the double-gate thin-film transistor are of the same layer and the same material.

[0103] Exemplarily, reference Figure 2B , along the thickness direction of the display panel 1, the pixel driving circuit 112 includes an active layer 1121, a first gate insulating layer, a gate metal layer, a second gate insulating layer, a first metal layer, an interlayer insulating layer, a second metal layer, a first passivation layer, a third metal layer, and a planarization layer in sequence away from the substrate 13 side. Among them, the first gate insulating layer, the second gate insulating layer, the interlayer insulating layer, and the first passivation layer are all insulating layers and play an insulating role. The materials of these insulating layers are, for example, at least one of silicon oxide and silicon nitride; the material of the planarization layer is an organic substance, such as at least one of polyimide, photoresist, and resin, which has both a planarization effect and an insulating effect. Since the above-mentioned insulating layers cover the display panel 1 in a whole layer, therefore, these insulating layers and the planarization layer are not shown in Figure 2B , but those skilled in the art can understand that these insulating layers must exist in the pixel driving circuit 112.

[0104] Reference Figure 2C is the structure diagram of the active layer 1121 in the pixel driving circuit 112. The material of the active layer 1121 is, for example, any one of polysilicon (P-si), amorphous silicon (a-si), or an oxide. The oxide among them is, for example, a metal oxide such as ZnO (zinc oxide).

[0105] Reference Figure 2D, the above-mentioned gate metal layer 1122 is used to form the gate, gate line Gate, reset signal line Reset, and emission control signal line EM in the thin film transistor. Among them, the gate line Gate, reset signal line Reset, and emission control signal line EM can also be referred to as scan signal lines. The gate of the driving transistor (the third transistor T3) can also serve as the first electrode C of the capacitor C 1 . The material of the gate metal layer 1122 is, for example, a metal or alloy such as silver, aluminum, or molybdenum.

[0106] The above-mentioned gate line Gate is electrically connected to the gate driving signal terminal Gate and is used to provide a gate driving signal Gate for the gate driving signal terminal Gate; the reset signal line Reset is electrically connected to the reset signal terminal Reset and is used to provide a reset signal Reset for the reset signal terminal Reset; the emission control signal line EM is electrically connected to the emission control signal terminal EM and is used to provide an emission control signal EM for the emission control signal terminal EM.

[0107] Reference Figure 2E , the above-mentioned first metal layer 1123 is used to form the initialization signal line Vinit and the second electrode C of the capacitor C 2 . The material of the second metal layer 1124 is, for example, a metal or alloy such as silver, aluminum, or molybdenum.

[0108] Reference Figure 2F , the second metal layer 1124 is used to form the first electrode (for example, the source electrode) and the second electrode (for example, the drain electrode) of the thin film transistor, the data signal line Data, the power supply voltage signal line VDD, and the connection electrode 1127. Among them, the data signal line Data is electrically connected to the data signal terminal Data in the pixel driving circuit 112 and is used to provide a data signal Data for the data signal terminal Data; the power supply voltage signal line VDD is electrically connected to the power supply voltage signal terminal VDD and is used to provide a power supply voltage signal VDD for the power supply voltage signal terminal VDD; the connection electrode 1127 is used to electrically connect the film layers that need to be electrically connected (for example, the second metal layer 1124 and the active layer 1121). The material of the second metal layer 1124 is, for example, a metal or alloy such as silver, aluminum, or molybdenum.

[0109] Exemplarily, referring to Figure 2F , a plurality of through holes 1126 are provided on the power supply voltage signal line VDD and the connection electrode 1127, which are used to realize the electrical connection between each thin film transistor and the data signal line Data, the power supply voltage signal line VDD, the emission control signal line EM, the gate line Gate, the initialization signal line Vinit, etc.

[0110] Reference Figure 2GFIG. 0 is a structural diagram of the third metal layer 1125. The material and function of the third metal layer 1125 are the same as those of the second metal layer 1124. For example, the third metal layer 1125 can also be used to form the first and second electrodes of the thin-film transistor, the data signal line Data, the power supply voltage signal line VDD, and the connection electrode 1127, so that the first and second electrodes, the data signal line Data, the power supply voltage signal line VDD, and the connection electrode 1127 in the thin-film transistor can be arranged in a double layer, so as to increase the distance between the adjacent data signal line Data and the power supply voltage signal line VDD in the same layer, reduce the parasitic capacitance generated therebetween, and improve the working performance of the pixel driving circuit 112.

[0111] It should be noted that, in Figure 2G , although only the connection electrode formed by the third metal layer 1125 is schematically shown, those skilled in the art should understand that the structures of the data signal line Data and the power supply voltage signal line VDD formed by the third metal layer 1125 are substantially the same as those of the data signal line Data and the power supply voltage signal line VDD formed by the second metal layer 1124.

[0112] Referring to Figure 2G , the connection electrode 1127 formed by the third metal layer 1125 is configured to connect the first electrode 1101 and the second metal layer 1124, so that the signal in the first metal layer 1123 can be transmitted to the first electrode 1101.

[0113] Referring to Figure 2H , for example, is a top view structural diagram of a first electrode 1101, and the first electrode 1101 is a transparent electrode. Referring to Figure 1D , in the display panel 1 of the present disclosure, the top view structure of the first electrode 1101 includes three types, and its specific shape is related to the light-emitting color of the first light-emitting device 110, and needs to be determined according to the design requirements.

[0114] Referring to Figure 2I , for example, is a top view structural diagram of a first light-emitting device 110. Referring to Figure 2B , along the thickness direction of the display panel 1, the orthographic projection of the first light-emitting device 110 on the first electrode 1101 falls within the range of the first electrode 1101. Those skilled in the art can understand that the top view structural diagram of the first light-emitting device 110 changes with the top view structural diagram of the first electrode 1101. Figure 2H And Figure 2I are only specific examples of the structures of the first electrode 1101 and the first light-emitting device 110 provided by the present disclosure, and do not limit the specific structures of the first electrode 1101 and the first light-emitting device 110 in the present disclosure.

[0115] In some embodiments, a pixel defining layer is further disposed on a side of the first electrode 1101 away from the substrate 13. A plurality of hollowed-out areas are provided on the pixel defining layer. At least a part of the first electrode 1101 is exposed in the hollowed-out areas, and the first light-emitting device 110 is located in the hollowed-out areas. When the display panel 1 operates, the first light-emitting device 110 can be driven to emit light by the pixel driving circuit 112 located under the first light-emitting device 110. The light-emitting color of the first light-emitting device 110 is any one of the three primary colors, and the three primary colors are, for example, red (R), green (G), and blue (B).

[0116] Reference Figure 1D , the above-mentioned plurality of second light-emitting devices 120 are disposed on the substrate 13 and located in the second display area 12. The second light-emitting device 120 includes, for example, a third electrode 1201 and a fourth electrode disposed opposite to each other, and a second light-emitting functional pattern 1203 located between the third electrode 1201 and the fourth electrode.

[0117] The structure of the second light-emitting functional pattern 1203 in the second light-emitting device 120 is the same as that of the first light-emitting functional pattern 1103 in the first light-emitting device 110, so it will not be described in detail; and the second light-emitting functional pattern 1203 and the first light-emitting functional pattern 1103 are of the same layer and the same material.

[0118] The third electrode 1201 and the first electrode 1101 are of the same layer and the same material. The materials of the third electrode 1201 and the first electrode 1101 are, for example, transparent conductive materials, such as indium tin oxides (ITO). The first electrode 1101 and the third electrode 1201 can also be referred to as anodes.

[0119] In some embodiments, the shapes of the first electrode 1101 and the third electrode 1201 are different.

[0120] The fourth electrode and the second electrode 1102 are of the same layer and the same material. The materials of the fourth electrode and the second electrode 1102 are, for example, metal materials, such as silver (Ag) or aluminum (Al). The fourth electrode and the second electrode 1102 can also be referred to as cathodes.

[0121] In some embodiments, reference Figure 3A , the second electrode 1102 is, for example, a planar electrode and needs to cover the entire first display area 11. Thus, the area surrounded by the outer contour line of the second electrode 1102 is the first display area 11; the fourth electrode 1204 is, for example, multiple, and there is a certain distance between two adjacent fourth electrodes 1204, and there is also a certain distance between the adjacent second electrode 1102 and the fourth electrode 1204; the area surrounded by the outer contour lines of the multiple fourth electrodes 1204 is the second display area 12.

[0122] In some embodiments, referring to Figure 3A , the fourth electrode 1204 is a plurality of strip electrodes, and the shape of each strip electrode is, for example, rectangular. In other embodiments, referring to Figure 3B , the shape of the fourth electrode 1204 is related to the outer contour of the third electrode 1201 included in one column of the third display units 122. Each third display unit 122 includes three second light-emitting devices 120, and the light-emitting colors of the three second light-emitting devices 120 are the three primary colors, and the light-emitting color of each second light-emitting device 120 is one of the three primary colors.

[0123] Since the first display area 11 can be determined according to the outer contour line of the second electrode 1102, and in the display area of the display panel 1, other areas except the first display area 11 are the second display area 12, the first display area 11 and the second display area 12 can be divided by the second electrode 1102. Those skilled in the art can understand that the display panel 1 may have a non-display area in addition to the display area, and in the embodiments of the present disclosure, it is not limited whether the display panel 1 has a non-display area.

[0124] Referring to Figure 1D and Figure 1F , the above-mentioned second driving circuit 121 is disposed on the substrate 13, and the second driving circuit 121 is coupled to a plurality of second light-emitting devices 120 and is configured to drive the plurality of second light-emitting devices 120 to emit light in a passive driving manner.

[0125] Referring to Figure 4A For example, it is an equivalent circuit diagram of the second driving circuit 121 and the second light-emitting device 120. The second driving circuit 121 therein includes a first electrode line 1211 and a second electrode line 1212. The first electrode line 1211 is configured to provide a signal to the third electrode 1201, and the second electrode line 1212 is configured to provide a signal to the fourth electrode 1204.

[0126] Exemplarily, the signal provided by the first electrode line 1211 to the third electrode 1201 is, for example, a second data signal SEG, and the second data signal SEG is configured to control the brightness of the second light-emitting device 120; the second electrode line 1212 is configured to provide a common signal COM to the fourth electrode 1204, and the magnitude of the common signal COM is, for example, equal to the magnitude of the power supply voltage signal VSS provided by the power supply voltage signal terminal VSS, and the power supply voltage signal VSS is, for example, 0V.

[0127] Exemplarily, referring to Figure 4BIt is a structural diagram of the connection relationship between the second driving circuit 121 and the second light-emitting device 120. The first electrode line 1211 in the second driving circuit 121 extends along the first direction W, and the second electrode line 1212 extends along the second direction L. The second light-emitting devices 120 in the same row are coupled to the same first electrode line 1211, and the second light-emitting devices 120 in the same column are coupled to the same second electrode line 1212. In Figure 4B the second light-emitting devices 120 in the same row have the same light-emitting color, and the second light-emitting devices 120 in the same column have different light-emitting colors.

[0128] Reference Figure 4B , the second driving circuit 121 operates in a form of sequentially turning on the second light-emitting devices 120 column by column, that is, the second driving circuit 121 sequentially turns on the second light-emitting devices 120 in the first column, the second column of second light-emitting devices 120 until the second light-emitting devices 120 in the nth column, where n is a positive integer greater than 1. The working process of the second driving circuit 121 turning on the second light-emitting devices 120 in the first column is, for example, the first first electrode line SEG 1 to the nth first electrode line SEG n respectively transmit the second data signal SEG to the second light-emitting devices 120 in the corresponding rows, and then the first second electrode line COM 1 transmits the common signal COM to the second light-emitting devices 120 in the first column, so that the second light-emitting devices 120 in the first column start to emit light under the control of the second data signal SEG and the common signal COM. By way of example, the effective level of the common signal COM is a low level. When the second light-emitting devices 120 in the first column emit light, the common signal COM transmitted by the first second electrode line COM 1 to the second light-emitting devices 120 in the first column is a low level, and the common signal COM transmitted by the other second electrode lines COM 1 to the second light-emitting devices 120 in the corresponding columns is a high level.

[0129] Reference Figure 1D and Figure 1F , the positive projection of at least one of the multiple second light-emitting devices 120 on the substrate 13 overlaps with the positive projection of the gap on the substrate 13.

[0130] By way of example, referring to Figure 1D , a part of the positive projection of the third electrode 1201 in the second light-emitting device 120 on the substrate 13 falls within the positive projection of the gap on the substrate 13; and a part of the positive projection of the second light-emitting functional pattern 1203 in the second light-emitting device 120 on the substrate 13 also falls within the positive projection of the gap on the substrate 13, and the width of the gap is, for example, d.

[0131] In some other embodiments, a part of the orthographic projection of the third electrode 1201 in the second light-emitting device 120 on the substrate 13 falls within the orthographic projection of the gap on the substrate 13, and the orthographic projection of the second light-emitting functional pattern 1203 in the second light-emitting device 120 on the substrate 13 does not fall within the orthographic projection of the gap on the substrate 13. The width of the gap is, for example, d, which is not shown in the drawings.

[0132] As another example, referring to Figure 1F , the entire orthographic projection of the third electrode 1201 in some of the second light-emitting devices 120 on the substrate 13 falls within the orthographic projection of the gap on the substrate 13, such as the second light-emitting device 120 closest to the first display area 11; and the orthographic projection of the second light-emitting functional pattern 1203 in these second light-emitting devices 120 on the substrate 13 also completely falls within the orthographic projection of the gap on the substrate 13. The width of the gap is, for example, d'.

[0133] In some other embodiments, a part of the orthographic projections of the third electrode 1201 and the second light-emitting functional pattern 1203 in the second light-emitting device 120 on the substrate 13 falls within the orthographic projection of the gap on the substrate 13. The width of the gap is, for example, d', which is not shown in the drawings.

[0134] Based on the above, whether a part of the orthographic projections of both the third electrode 1201 and the second light-emitting functional pattern 1203 in the second light-emitting device 120 on the substrate 13 falls within the orthographic projection of the gap on the substrate 13, or only a part of the orthographic projection of the third electrode 1201 on the substrate 13 falls within the orthographic projection of the gap on the substrate 13, both belong to the situation where the orthographic projection of the second light-emitting device 120 on the substrate 13 overlaps with the orthographic projection of the gap on the substrate 13.

[0135] Those skilled in the art can understand that the position and size of the second light-emitting functional pattern 1203 are correlated with the position and size of the third electrode 1201.

[0136] For example, referring to Figure 1D , the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first display area 11 on the substrate 13 is d. At this time, the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 is, for example, d1, and the minimum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 is, for example, d2, where d1 is greater than d and d2.

[0137] Based on Figure 1D the structure of the display panel 1 shown, the distribution of the first light-emitting device 110 and the second light-emitting device 120 therein can be simplified to Figure 1EThe structure shown, wherein the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is d2. For example, d2 is 20 μm.

[0138] Also for example, referring to Figure 1F , the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first display area 11 on the substrate 13 is d′. At this time, the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 is, for example, d1′, and the minimum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 is, for example, d2′; wherein, d1′ is greater than d′ and d2′.

[0139] It should be noted that d1 being greater than d and d2 should be understood as d1 being greater than d and d1 being greater than d2, and the relationship between d and d2 is not limited; similarly, d1′ being greater than d′ and d2′ should be understood as d1′ being greater than d′ and d1′ being greater than d2′, and the relationship between d′ and d2′ is not limited.

[0140] Based on Figure 1F the structure of the display panel 1 shown, the distribution of the first light-emitting device 110 and the second light-emitting device 120 therein can be simplified to Figure 1G the structure shown, wherein, along the first direction, the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is d2′. For example, d2′ is 30 μm.

[0141] In the related art, referring to Figure 5A, the display panel 1 has a first display area 11 and a second display area 12. The display panel 1 includes a first driving circuit, a first light-emitting device 110, a second driving circuit, and a second light-emitting device 120; wherein, the first driving circuit is located on the substrate 13, the first light-emitting device 110 is located in the first display area 11, and the second driving circuit and the second light-emitting device 120 are both located in the second display area 12. The first driving circuit is configured to drive the first light-emitting device 110 to emit light in an active driving manner, and the second driving circuit is configured to drive the second light-emitting device 120 to emit light in a passive driving manner. The first driving circuit includes a pixel driving circuit and a signal line 1110, wherein the scanning signal line 1111 in the pixel driving circuit extends from the first display area 11 to the second display area 12, while the signal line 1110 is entirely located in the first display area 11. The minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 is, for example, d1. Since the second light-emitting device 120 is located in the second display area 12, there is also a gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13. The minimum width of this gap is, for example, d3. Therefore, the minimum width d0 of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 is approximately equal to d1 + d3, and thus it can be seen that d0 is greater than d1 and d3. Since the minimum width d1 of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 cannot meet the requirement of setting another column of pixels between the signal line 1110 and the first light-emitting device 110, in this related art, there is no orthographic projection of other light-emitting devices between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13. One pixel, for example, includes three first light-emitting devices 110. The light-emitting colors of each first light-emitting device 110 are not the same, and the light-emitting color of each first light-emitting device 110 is one of the three primary colors.

[0142] Since the minimum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 is d0, and the first light-emitting device 110 and the second light-emitting device 120 are of the same layer and the same material, the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 can be understood as the gap between the first light-emitting device 110 and the second light-emitting device 120. Based on Figure 5A the structure of the display panel 1 shown, the distribution of the first light-emitting device 110 and the second light-emitting device 120 therein can be simplified to Figure 5BThe structure shown, where the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is d0. For example, the minimum width d0 of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 is greater than 100 micrometers, for example.

[0143] In the related art, since the minimum width d0 of the gap between the first light-emitting device 110 and the second light-emitting device 120 is relatively large, and the coverage range of the light emitted by the first light-emitting device 110 and the second light-emitting device 120 is limited, when d0 is large, the light emitted by the first light-emitting device 110 and the second light-emitting device 120 on both sides of the gap cannot completely illuminate the gap, so that a dark state will occur in the area of the gap during display, and finally, when the display panel 1 is displaying, dark spots and / or dark lines that can be recognized by the human eye will appear, affecting the display effect of the display panel 1. Since the minimum size that the human eye can recognize is 100 μm, and d0 in the related art is often greater than 100 μm, the dark spots and / or dark lines that appear in the gap can be recognized by the human eye.

[0144] In the above-mentioned related art, since the minimum width d2 of the gap between the first light-emitting device 110 and the second light-emitting device 120 is approximately equal to d1 + d3, the factors affecting the minimum width d2 of the gap between the first light-emitting device 110 and the second light-emitting device 120 include: the minimum width d1 of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13, and the minimum width d3 of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13.

[0145] For example, referring to Figure 1D and Figure 5A, the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 in the related art is approximately equal to the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 in the present disclosure, that is, both are d1. However, in the embodiments of the present disclosure, since the orthographic projection of the signal line 1110 on the substrate 13 overlaps with the orthographic projection of the second light-emitting device 120 on the substrate 13, there is no gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13. As a result, the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is d2, which is less than d1. In the related art, the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is d0, and d0 > d1. Therefore, the minimum width d0 of the gap between the first light-emitting device 110 and the second light-emitting device 120 in the related art is greater than the minimum width d2 of the gap between the first light-emitting device 110 and the second light-emitting device 120 in the present disclosure. So refer to Figure 1D , compared with the related art, while keeping the minimum width d1 of the gap between the signal line 1110 and the first light-emitting device 110 unchanged, by disposing the signal line 1110 in the second display area 12, the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 is reduced, so that the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is reduced.

[0146] Another example, refer to Figure 1F and Figure 5A , first, the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13 in the related art is d3. However, in the embodiments of the present disclosure, since the orthographic projection of the signal line 1110 on the substrate 13 overlaps with the orthographic projection of the second light-emitting device 120 on the substrate 13, there is no gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the second light-emitting device 120 on the substrate 13. Second, on the basis that the minimum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the signal line 1110 on the substrate 13 in the related art is d1, the minimum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the signal line 1110 on the substrate 13 is reduced to d1'. As a result, in some embodiments of the present disclosure, the minimum width d2' of the gap between the first light-emitting device 110 and the second light-emitting device 120 is less than the minimum width d0 of the gap between the first light-emitting device 110 and the second light-emitting device 120 in the related art. So refer to Figure 1F, compared with the related art, by disposing the signal line 1110 in the second display area 12, the minimum width of the gap between the positive projection of the signal line 1110 on the substrate 13 and the positive projection of the second light-emitting device 120 on the substrate 13 is reduced, and at the same time, the minimum width of the gap between the positive projection of the first light-emitting device 110 on the substrate 13 and the positive projection of the signal line 1110 on the substrate 13 is reduced, so that the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 is reduced.

[0147] In some embodiments of the present disclosure, the display panel 1 includes a first driving circuit 111, a first light-emitting device 110, a second driving circuit 121, and a second light-emitting device 120. The first driving circuit 111 includes a plurality of pixel driving circuits 112 and signal lines 1110 coupled to the pixel driving circuits 112. The signal lines 1110 are located in the second display area 12 and extend substantially along the edge of the second display area 12 close to the first display area 11. The positive projection of at least one of the plurality of second light-emitting devices 120 on the substrate 13 overlaps with the positive projection of the gap on the substrate 13. Since the signal line 1110 serves as one side edge of the gap, when the positive projection of the gap on the substrate 13 overlaps with the positive projection of the second light-emitting device 120 on the substrate 13, the positive projection of the signal line 1110 on the substrate 13 also overlaps with the positive projection of the second light-emitting device 120 on the substrate 13. On the one hand, on the premise that the minimum width of the gap between the positive projection of the first light-emitting device 110 on the substrate 13 and the positive projection of the signal line 1110 on the substrate 13 is the same, the embodiments in the present disclosure overlap the positive projection of the signal line 1110 on the substrate 13 with the positive projection of the second light-emitting device 120 on the substrate 13, so that there is no gap between the positive projection of the signal line 1110 on the substrate 13 and the positive projection of the second light-emitting device 120 on the substrate 13, thereby reducing the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120. On the other hand, the embodiments in the present disclosure overlap the positive projection of the signal line 1110 on the substrate 13 with the positive projection of the second light-emitting device 120 on the substrate 13, and reduce the minimum width of the gap between the positive projection of the signal line 1110 on the substrate 13 and the positive projection of the first light-emitting device 110 on the substrate 13, further reducing the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120. In the embodiments of the present disclosure, since the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 can be set to be relatively small, it is helpful to reduce the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 to a size range that cannot be recognized by the human eye. Thus, even if the light emitted by the first light-emitting device 110 and the second light-emitting device 120 located on both sides of the gap cannot completely illuminate the gap, that is, the gap is still in a dark state, but since the minimum width of the gap is less than the recognition accuracy of the human eye, during the display process, the human eye cannot recognize the appearance of dark spots or dark lines at the gap between the first light-emitting device 110 and the second light-emitting device 120, thereby improving the display effect of the display panel 1.

[0148] In some embodiments, refer to Figure 1D 、 Figure 1E 、 Figure 1F and Figure 1G, the minimum distance between any adjacent first light-emitting device 110 and second light-emitting device 120 is less than or equal to 60 μm, that is, both d2 and d2' are less than or equal to 60 μm.

[0149] The minimum distance between the first light-emitting device 110 and the second light-emitting device 120 is the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120 as described above. Since 60 μm is less than the minimum recognition size of the human eye, even when the gap between the first light-emitting device 110 and the second light-emitting device 120 is in the dark state, the human eye cannot recognize it. Thus, it is ensured that no dark spots and / or dark lines that can be recognized by the human eye will appear when the display panel 1 is displaying, improving the display effect of the display panel 1.

[0150] In some embodiments, referring to Figure 6A and Figure 6B , the first display area 11 includes a first sub-area 113 and two second sub-areas 114 arranged oppositely along the first direction W, and the second sub-area 114 is located between the first sub-area 113 and the second display area 12. The length of the second sub-area 114 is approximately equal to the length of the second display area 12. The length direction of the second sub-area 114 is along the second direction L, and the second direction L is perpendicular to the first direction W. Exemplarily, the first direction W is, for example, the width direction of the display panel 1, and the second direction is, for example, the length direction of the display panel 1, and vice versa.

[0151] Along the first direction W, the minimum distance between any two first light-emitting devices 110 in the first sub-area 113 is less than the minimum distance between any two first light-emitting devices 110 in the second sub-area 114.

[0152] Exemplarily, referring to Figure 6A and Figure 6B , in the first sub-area 113, along the first direction W, adjacent two first light-emitting devices 110 are arranged at equal intervals, and this interval is, for example, a. In the second display area 12, adjacent two second light-emitting devices 120 are arranged at equal intervals, and this interval is, for example, b 1 , and b 1 is greater than a.

[0153] Based on the above, in some embodiments, referring to Figure 6A , in the second sub-area 114, along the first direction, adjacent two first light-emitting devices 110 are arranged at equal intervals, and this interval is, for example, a 1 . Exemplarily, among the three first light-emitting devices 110 in the first row in the second sub-area 114, the distance between the first first light-emitting device 110 and the second first light-emitting device 110 is a 1 , and the distance between the second first light-emitting device 110 and the third first light-emitting device 110 is also a1 and a 1 > a.

[0154] In some other embodiments, referring to Figure 6B , along the first direction W, the first light-emitting devices 110 in the first sub-region 113 are arranged at equal intervals, and the interval is, for example, a; the intervals between adjacent first light-emitting devices 110 in the second sub-region 114 are sequentially increased. For example, among the three first light-emitting devices 110 in the first row of the second sub-region 114, the interval between the first first light-emitting device 110 and the second first light-emitting device 110 is a 1 , and the interval between the second first light-emitting device 110 and the third first light-emitting device 110 is a 2 and a 2 > a 1 > a.

[0155] Combined with Figure 6A and Figure 6B , it can be known that b 1 > a 2 > a 1 > a. That is, along the first direction W, the interval between two adjacent second light-emitting devices 120 in the second display area 12 is greater than the interval between two adjacent first light-emitting devices 110 in the first display area 11. Thus, the resolution of the second display area 12 is less than the resolution of the first display area 11. For example, the resolution of the second display area 12 is equal to one-half of the resolution of the first display area 11. Since the second display area 12 needs to have higher light transmittance when not displaying, so that the sensor 2 on the non-light-emitting side of the display panel 1 can receive light, the resolution of the second display area 12 is reduced, making the number of the third electrode 1201 and the fourth electrode 1204 in the second display area 12 smaller, thereby improving the light transmittance of the second display area 12.

[0156] Based on the above, referring to Figure 6A , when the first light-emitting devices 110 in the second sub-region 114 are also arranged at equal intervals a 1 set, it is convenient to fabricate multiple first light-emitting devices 110 in the second sub-region 114. Referring to Figure 6B , since in the second display area 12, the interval between two adjacent second light-emitting devices 120 is greater than that in the second sub-region 114, and the second sub-region 114 is adjacent to the second display area 12, so increasing the intervals between two adjacent first light-emitting devices 110 in the second sub-region 114 sequentially can make the intervals between two adjacent first light-emitting devices 110 closer to the interval between two adjacent second light-emitting devices 120 in the second display area 12 as they are closer to the second display area 12. In this way, during display, the transition between the first display area 11 and the second display area 12 can be smoother and the display effect can be better.

[0157] In some embodiments, referring to Figure 1F , the positive projection of the pixel driving circuit 112 coupled to the first light-emitting device 110 near one side of the second display area 12 on the substrate 13 overlaps with the positive projection of the gap on the substrate 13, where the gap is the gap between the positive projection of the first display area 11 on the substrate 13 and the positive projection of the signal line 1110 on the substrate 13.

[0158] Since the signal line 1110 is located in the second display area 12, the gap between the signal line 1110 and the first display area 11 is entirely located in the second display area 12. When the positive projection of the pixel driving circuit 112 coupled to the first light-emitting device 110 near one side of the second display area 12 on the substrate 13 overlaps with the positive projection of the gap (between the positive projection of the first display area 11 on the substrate 13 and the positive projection of the signal line 1110) on the substrate 13, these pixel driving circuits 112 are actually disposed in the second display area 12. Although the pixel driving circuits 112 are disposed in the second display area 12, the first light-emitting devices 110 coupled to these pixel driving circuits 112 disposed in the second display area 12 are still disposed in the first display area 11, thereby making full use of the gap between the first light-emitting device 110 and the second light-emitting device 120, which is beneficial to further reducing the minimum width of the gap between the first light-emitting device 110 and the second light-emitting device 120.

[0159] In some embodiments, referring to Figure 1F and Figure 1G , in the first display area 11, a plurality of first light-emitting devices 110 constitute a plurality of first display units 115 and a plurality of second display units 116. Compared with the plurality of first display units 115, the plurality of second display units 116 are closer to the second display area 12.

[0160] Exemplarily, referring to Figure 1F and Figure 1G, both the first display unit 115 and the second display unit 116 include a plurality of first light-emitting devices 110 with three primary colors as their emission colors, where the emission color of each first light-emitting device 110 is one of the three primary colors. For example, the first display unit 115 includes four first light-emitting devices 110; the second display unit 116 includes three first light-emitting devices 110, for example. Exemplarily, the three primary colors are, for example, red, green, and blue. The four first light-emitting devices 110 included in the first display unit 115 are, for example, one first light-emitting device 110 with an emission color of red (R), one first light-emitting device 110 with an emission color of blue (B), and two first light-emitting devices 110 with an emission color of green (G), and the two first light-emitting devices 110 with an emission color of green are located between the two first light-emitting devices 110 with an emission color of red and an emission color of blue. In a first display unit 115, one of the two first light-emitting devices 110 with an emission color of green is configured to be coupled to a pixel driving circuit 112 in the upper row, and the other is configured to be coupled to a pixel driving circuit 112 in the current row. The three first light-emitting devices 110 included in the second display unit 116 are, for example, one first light-emitting device 110 with an emission color of red (R), one first light-emitting device 110 with an emission color of blue (B), and one first light-emitting device 110 with an emission color of green (B).

[0161] In some embodiments, two adjacent first display units 115 share a first light-emitting device 110, and an adjacent first display unit 115 and second display unit 116 can also share a first light-emitting device 110. Exemplarily, referring to Figure 1G , an adjacent first display unit 115 and second display unit 116 share the same first light-emitting device 110 with an emission color of blue. The mode in which the first display unit 115 and the second display unit 116 share the first light-emitting device 110 refers to, for example, the sharing relationship between sub-pixels in a Pentile arrangement, where one sub-pixel corresponds to one first light-emitting device 110.

[0162] Referring to Figure 5A , in the related art, the first display area 11 only includes the first display unit 115, while in the embodiments of the present disclosure, the first display area 11 includes the first display unit 115 and the second display unit 116. Due to the setting of the second display unit 116, the minimum width of the gap between the positive projection of the signal line 1110 on the substrate 13 and the positive projection of the first light-emitting device 110 on the substrate 13 is reduced.

[0163] On this basis, in some embodiments, the distribution pattern of the four first light-emitting devices 110 in the first light-emitting device 110 is the same as that of the three first light-emitting devices 110 in the second display unit 116. This facilitates the synchronous fabrication of the first display unit 115 and the second display unit 116.

[0164] Since the second display unit 116 includes the first light-emitting devices 110 with the three primary colors of light emission, the second display unit 116 can display normally, thereby ensuring the display effect of the first display area 11 after adding the second display unit 116.

[0165] It should be noted that referring to Figure 5A , since the minimum width of the gap between the orthographic projection of the signal line 1110 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 is d1, and a complete column of pixels cannot be arranged within this minimum width range. Comparing Figure 5A and Figure 1F , Figure 1F in the first display area in Figure 5A is equivalent to adding a column of second display units 116 on the basis of Figure 5A . Each second display unit 116 includes three first light-emitting devices 110, which can be equivalent to one pixel; while in Figure 5A , on the premise that the positions and sizes of other structures remain unchanged, even if the first light-emitting devices 110 are added, at most two columns of first light-emitting devices 110 with red and blue light emission colors can be added. Multiple first light-emitting devices 110 with the same light emission color can be understood as one column. And only adding two columns of first light-emitting devices 110 cannot form pixels for normal display because there are no first light-emitting devices 110 with green light emission color. Although the first light-emitting devices 110 in the first display area 11 can be shared when forming pixels, only adding two columns cannot achieve normal display, and there will always be some first light-emitting devices 110 left that cannot form pixels for display. Therefore, two columns of first light-emitting devices 110 are not added between the first light-emitting device 110 and the signal line 1110 in the related art.

[0166] In some embodiments, referring to Figure 1F , the orthographic projection of the pixel driving circuit 112 coupled to at least one of the first light-emitting devices 110 in the second display unit 116 on the substrate 13 overlaps with the orthographic projection of the gap on the substrate 13, where the gap is the gap between the orthographic projection of the first display area 11 on the substrate 13 and the orthographic projection of the signal line 1110 on the substrate 13.

[0167] Exemplarily, the pixel driving circuit 112 coupled to the first light-emitting device 110 with a green (G) emission color in the second display unit 116 is disposed in the second display area 12. Since the area of the first light-emitting device 110 with a green emission color is smaller than that of the first light-emitting devices 110 with red (R) and blue (B) emission colors, the pixel driving circuit 112 coupled to the first light-emitting device 110 with a green emission color is disposed in the second display area 12 to rationally utilize the space on the side of the first display area 11 close to the second display area 12.

[0168] Since the first light-emitting device 110 with a green emission color is closest to the second display area 12, disposing the pixel driving circuit 112 coupled to the first light-emitting device 110 with a green emission color in the second display area 12 can minimize the minimum width of the gap between the positive projection of the signal line 1110 on the substrate 13 and the positive projection of the first light-emitting device 110 on the substrate 13.

[0169] In some embodiments, referring to Figure 1F , the positive projection of the first light-emitting device 110 coupled to the pixel driving circuit 112 whose positive projection on the substrate 13 overlaps with the positive projection of the gap on the substrate 13 does not overlap with the positive projection of the pixel driving circuit 112 on the substrate 13, where the gap is the gap between the positive projection of the first display area 11 on the substrate 13 and the positive projection of the signal line 1110 on the substrate 13.

[0170] Exemplarily, referring to Figure 1F , in the second display unit 116, the first light-emitting device 110 with a green (G) emission color is disposed in the first display area 11, and the pixel driving circuit 112 configured to drive the first light-emitting device 110 with a green emission color is disposed in the second display area 12. Therefore, the positive projection of the first light-emitting device 110 with a green emission color on the substrate 13 does not overlap with the positive projection of the pixel driving circuit 112 configured to drive the first light-emitting device 110 with a green emission color on the substrate 13.

[0171] Since the pixel circuits where the orthographic projection on the substrate 13 overlaps with the orthographic projection of the gap on the substrate 13 are arranged in the second display area 12, and because there is a sharing relationship among the first light-emitting devices 110 in the first display area 11, in order to ensure the display effect of the first display area 11 and reasonably utilize the side of the second display area 12 close to the first display area 11 to arrange the pixel driving circuit 112, the first light-emitting device 110 with a green emission color is still arranged in the first display area 11 during the arrangement to ensure the normal display of the first display area 11, while the pixel driving circuit 112 configured to drive the first light-emitting device 110 with a green emission color is arranged in the second display area 12. Except that the pixel driving circuit 112 coupled to the first light-emitting device 110 with a green emission color in the second display unit 116 is located in the second display area 12, other first light-emitting devices 110 and the pixel driving circuits 112 for driving them are all located in the first display area 11.

[0172] In some embodiments, referring to Figures 1D to 1G , in the second display area 12, a plurality of second light-emitting devices 120 form a plurality of third display units 122. Each third display unit 122 includes second light-emitting devices 120 with the three primary colors of light emission. The emission color of each second light-emitting device 120 is one of the three primary colors, and the number of second light-emitting devices 120 included in each third display unit 122 is the same as the number of first light-emitting devices 110 included in the second display unit 116.

[0173] Exemplarily, referring to Figures 1D to 1G , each third display unit 122 includes three second light-emitting devices 120, such as a second light-emitting device 120 with a red (R) emission color, a second light-emitting device 120 with a green (G) emission color, and a second light-emitting device 120 with a blue (B) emission color.

[0174] Since there is no situation of sharing second light-emitting devices 120 in two adjacent second display units 116, in order to make the second display unit 116 display normally, at least 3 second light-emitting devices 120 with different emission colors need to be arranged.

[0175] In some embodiments, referring to Figure 1C , since the first light-emitting device 110 includes a first electrode 1101 and a second electrode 1102 arranged opposite to each other, and the driving method of the first light-emitting device 110 is active driving, all the first light-emitting devices 110 can share one second electrode 1102.

[0176] Exemplarily, referring to Figure 3A and Figure 3B , there is one second electrode 1102, which is located in the first display area 11.

[0177] Based on the above, those skilled in the art can understand that if all the first light-emitting devices 110 need to share a second electrode 1102, then all the first light-emitting devices 110 must be disposed in the first display area 11. In particular, in the case where the display panel 1 includes a second display unit 116, the first light-emitting devices 110 with a green emission color can only be located in the first display area 11, and the pixel driving circuit 112 coupled thereto can be located in the first display area 11 or the second display area 12. In the embodiments of the present disclosure, an example is schematically shown in which the pixel driving circuit 112 coupled to the first light-emitting device 110 with a green emission color in the second display unit 116 is located in the second display area 12.

[0178] In some embodiments, since the second light-emitting device 120 includes a third electrode 1201 and a fourth electrode 1204 disposed opposite to each other, and the driving method of the second light-emitting device 120 is passive driving, the second light-emitting devices 120 in a plurality of third display units 122 in the same column can share the same fourth electrode 1204.

[0179] Exemplarily, referring to Figure 3A and Figure 3B , the fourth electrode 1204 is located in the second display area 12, and each third display unit 122 includes three second light-emitting devices 120.

[0180] When all the first light-emitting devices 110 share the same second electrode 1102, and the second light-emitting devices 120 in a plurality of third display units 122 in the same column share the same fourth electrode 1204, it is convenient to fabricate the first light-emitting devices 110 and the second light-emitting devices 120, and the manufacturing cost of the display panel 1 is saved.

[0181] In some embodiments, referring to Figure 3A and Figure 3B , the display panel 1 further includes:

[0182] A plurality of isolation structures 123, the isolation structures 123 are disposed in the second display area 12; the isolation structures 123 are configured to separate adjacent second electrodes 1102 and fourth electrodes 1204, and two adjacent fourth electrodes 1204.

[0183] Since the second electrode 1102 and the fourth electrode 1204 are on the same layer and made of the same material, in order to fabricate the second electrode 1102 and the fourth electrode 1204 simultaneously, an isolation structure 123 needs to be provided to separate adjacent second electrodes 1102 and fourth electrodes 1204. Also, since the third display units 122 in the same column share the same fourth electrode 1204, adjacent fourth electrodes 1204 also need to be separated. The isolation structure 123 can separate, for example, the second electrode 1102 and the fourth electrode 1204 fabricated by a vapor deposition process from each other, and also separate adjacent fourth electrodes 1204 from each other.

[0184] Exemplarily, refer to Figure 1D and Figure 1F , the orthographic projection of the isolation structure 123 for separating adjacent second electrodes 1102 and fourth electrodes 1204 on the substrate 13 overlaps with the orthographic projection of the gap on the substrate 13; the gap therein is the gap between the orthographic projection of the first display region 11 on the substrate 13 and the orthographic projection of the signal line 1110 on the substrate 13.

[0185] Exemplarily, refer to Figure 1D , the top view of the isolation structure 123 is, for example, rectangular; refer to Figure 1F , the top view of the isolation structure 123 is approximately a square wave.

[0186] Exemplarily, refer to Figure 7A , along the thickness direction of the display panel 1, the display panel 1 sequentially includes: a carrier substrate 15, a substrate 13, a barrier layer 16, a first gate insulating layer 17, a gate metal layer 1122, a second gate insulating layer 18, a first metal layer 1123, an interlayer insulating layer 19, a first passivation layer 101, a third metal layer 1125, a planarization layer 103, a second passivation layer 102, a third electrode 1201, and a pixel defining layer 14.

[0187] Among them, the material of the carrier substrate 15 is, for example, glass, and the carrier substrate 15 is configured to support each film layer located thereon during the fabrication of the display panel 1.

[0188] The material of the barrier layer 16 is, for example, at least one of silicon oxide (SiO X ), and / or silicon nitride (SiN), and the barrier layer 16 is configured to isolate impurity ions in the substrate 13, such as hydrogen ions (H), to prevent the impurity ions from affecting the active layer 1121 on the side of the barrier layer 16 away from the substrate 13. It should be noted that since Figure 7A is a longitudinal sectional view of the part of the display panel 1 in the second display region 12, so in Figure 7AIn [the figure], there are no film layers such as the active layer 1121 and the second metal layer 1124. However, those skilled in the art can understand that in the longitudinal sectional view of the display panel 1 in the first display area 11, there must be an active layer 1121 and a second metal layer 1124. Among them, the active layer 1121 is located between the blocking layer 16 and the first gate insulating layer 17; the second metal layer 1124 is located between the interlayer insulating layer 19 and the first passivation layer 101.

[0189] The materials of the first gate insulating layer 17, the second gate insulating layer 18, the interlayer insulating layer 19, the first passivation layer 101, and the second passivation layer 102 are all inorganic insulating materials, such as silicon oxide and / or silicon nitride, for example.

[0190] The material of the planarization layer 103 is an organic material, such as polyimide or resin, for example.

[0191] The material of the pixel defining layer 14 is an organic material, such as resin, for example.

[0192] In some embodiments, referring to Figure 7A , the isolation structure 123 is disposed in the planarization layer 103. Due to the existence of the isolation structure 123, the second passivation layer 102 located above the planarization layer 103 is disconnected at the isolation structure 123. When the second electrode 1102 and the fourth electrode 1204 are fabricated subsequently, the adjacent second electrode 1102 and the fourth electrode 1204, as well as the adjacent fourth electrodes 1204, will also be separated by the isolation structure 123.

[0193] In some embodiments, referring to Figures 7A to 7D , the isolation structure 123 is an isolation pillar or an isolation groove. Whether it is an isolation pillar or an isolation groove, the isolation structure 123 can separate the adjacent second electrode 1102 and the fourth electrode 1204, as well as the adjacent fourth electrodes 1204.

[0194] Exemplarily, referring to Figure 7A and Figure 7B , the isolation structure 123 is an isolation groove. Since the process of setting a groove in the planarization layer 103 is relatively simple, the isolation structure 123 can be set as an isolation groove. Among them, referring to Figure 7A , the groove wall of the isolation groove is a curved surface; referring to Figure 7B , the groove wall of the isolation groove is an inclined surface.

[0195] Also exemplarily, referring to Figure 7C , the isolation structure 123 is an isolation pillar. Since the step difference of the isolation pillar is relatively large, it is beneficial to better ensure the separation of the adjacent second electrode 1102 and the fourth electrode 1204, as well as the adjacent fourth electrodes 1204 and the fourth electrode 1204 when fabricating the second electrode 1102 and the fourth electrode 1204.

[0196] In some embodiments, referring to Figure 7A , in the longitudinal section of the isolation column or isolation groove, the length of the bottom edge of the isolation column or isolation groove is substantially equal to the length of its top edge. This structure is relatively symmetric and regular, facilitating fabrication.

[0197] In other embodiments, referring to Figure 7B and Figure 7C , in the longitudinal section of the isolation column or isolation groove, the length of the bottom edge of the isolation column or isolation groove is less than the length of its top edge, so that the side wall of the isolation column or isolation groove can be an inclined surface, which is more conducive to fabricating the mutually spaced second electrodes 1102 and fourth electrodes 1204, as well as the mutually spaced fourth electrodes 1204.

[0198] It should be noted that the direction of the longitudinal section of the above isolation column or isolation groove is along the first direction.

[0199] In some embodiments, referring to Figure 1F and Figure 7D , when the orthographic projection of the pixel circuit coupled to at least one first light-emitting device 110 in the second display unit 116 on the substrate 13 overlaps with the orthographic projection of the gap on the substrate 13: the isolation structure 123 includes a plurality of protrusions 1230 that protrude toward the side close to the second display area 12; the gap therein is the gap between the orthographic projection of the first display area 11 on the substrate 13 and the orthographic projection of the signal line 1110 on the substrate 13.

[0200] Referring to Figure 5A , the maximum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the isolation structure 123 on the substrate 13 is less than the maximum width of the second display unit 116. At the same time, since the third electrode 1201 is located on the flat layer 103, the orthographic projection of the third electrode 1201 on the substrate 13 and the orthographic projection of the isolation structure 123 on the substrate 13 cannot overlap; thus, in order to add a new column of second display units 116 in the first display area 11, it is necessary to change the shape of the isolation structure 123, for example, by providing a plurality of protrusions 1230 to increase the maximum width of the gap between the orthographic projection of the first light-emitting device 110 on the substrate 13 and the orthographic projection of the isolation structure 123 on the substrate 13, so that a new column of second display units 116 can be added in the first display area 11.

[0201] Exemplarily, referring to Figure 7D , the protrusions 1230 in the isolation structure 123 protrude toward the side away from the first display area 11.

[0202] The protrusions 1230 protrude toward the side away from the first display area 11, thus leaving enough space for the first light-emitting device 110 with a green (G) emission color in the second display unit 116.

[0203] Based on the above, referring to Figure 5A , in the related art, although there is also a gap between the orthographic projection of the isolation structure 123 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13, the width of this gap is small and not enough to accommodate a second display unit 116. At most, two first light-emitting devices 110 can be arranged. For example, two first light-emitting devices 110 with red and blue emission colors can be accommodated. Since the green first light-emitting device 110 is missing, the display unit composed of these two first light-emitting devices 110 cannot emit white light normally, resulting in a display abnormality problem. In the present disclosure, by changing the isolation structure 123, the maximum width of the gap between the orthographic projection of the isolation structure 123 on the substrate 13 and the orthographic projection of the first light-emitting device 110 on the substrate 13 is increased, so that the second display unit 116 can be arranged in this gap, thereby ensuring the normal display of the display panel 1.

[0204] In some embodiments, referring to Figure 1D and Figure 1F , the first driving circuit 111 further includes a scanning signal line 1111, and the scanning signal line 1111 is configured to provide a scanning signal to the first driving circuit 111, and the scanning signal line 1111 extends along the first direction W.

[0205] The scanning signal includes, for example, a gate driving signal Gate, a light-emitting control signal EM, and a reset signal Reset. However, those skilled in the art can understand that only one type of signal is provided by one scanning signal line 1111.

[0206] Since the first display units 115 in the same row or the first display units 115 and the second display units 116 in the same row need to be driven simultaneously, the first display units 115 in the same row or the first display units 115 and the second display units 116 in the same row need to be driven by the same scanning signal line 1111. Therefore, the scanning signal line 1111 needs to extend along the first direction W. Referring to Figure 1D and Figure 1F , since the scanning signal line 1111 extends along the first direction W, there is also a scanning signal line 1111 in the second display area 12.

[0207] In some embodiments, in combination with Figure 1F and Figure 8 , at least one pixel driving circuit 112 coupled to the first light-emitting device 110 in the second display unit 116 is disposed in the second display area 12. The positional relationship between the pixel driving circuit 112 and the first light-emitting device 110 is, for example, referred to Figure 8As shown, except that the pixel driving circuit 112 coupled to the first light-emitting device 110 with a green (G) light-emitting color in the second display unit 116 is disposed in the second display area 12, the remaining pixel driving circuits 112 coupled to the first light-emitting devices 110 are all disposed on the lower side of the first light-emitting device 110 in the first display area 11.

[0208] Since the first light-emitting device 110 with a green (G) light-emitting color disposed in the first display area 11 needs to be coupled to the pixel driving circuit 112 disposed in the second display area 12, the first light-emitting device 110 is coupled to the pixel driving circuit 112 through the first metal layer 1123. For example, referring to Figure 8 , a plurality of electrodes 1123' are formed through the first metal layer 1123, the ends of the electrodes 1123' are located in the first display area 11, and then other film layers of the pixel driving circuit 112 located above the first metal layer 1123 are sequentially fabricated in the first display area 11, so as to couple the pixel driving circuit 112 located in the second display area 12 to the first light-emitting device 110 located in the first display area 11.

[0209] In some embodiments, referring to Figure 1A , the display panel 1 further includes: a first driving module 31 and a second driving module 32. The first driving module 31 is configured to provide a driving signal to the first driving circuit 111; the second driving module 32 is configured to provide a driving signal to the second driving circuit 121.

[0210] For example, the first driving module 31 provides a first data signal Data and a power supply voltage signal VDD to the first driving circuit 111; the second driving module 32 provides a second data signal SEG to the second driving circuit 121.

[0211] Another example is that the first driving module 31 includes a first driving chip 310, and the first driving chip 310 is configured to provide a first data signal Data to the first driving circuit 111.

[0212] The second driving module 32 includes a second driving chip 320, and the second driving chip 320 is configured to provide a second data signal SEG to the second driving circuit 121.

[0213] Based on the above, the first driving chip 310 and the second driving chip 320 are both source drivers, for example.

[0214] Since the driving methods of the first driving circuit 111 and the second driving circuit 121 are different, the first driving module 31 is provided to supply various signals required by the first driving circuit 111, and the second driving module 32 is provided to supply various signals required by the second driving circuit 121, so as to ensure the normal operation of the first driving circuit 111 and the second driving circuit 121.

[0215] Those skilled in the art can understand that the display unit in this disclosure is only the smallest repeating unit and does not necessarily mean a pixel. For example, since there is a sharing of the first light-emitting device 110 between two adjacent first display units 115, a single first display unit 115 cannot be understood as a pixel, while the second display unit 116 and the third display can both be understood as a pixel.

[0216] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who contemplates changes or substitutions within the technical scope disclosed by the present disclosure should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A display panel having adjacent first and second display regions; Characterized in that, The display panel includes: A substrate; A plurality of first light-emitting devices disposed on the substrate and located in the first display region; A first driving circuit disposed on the substrate, the first driving circuit being coupled to the plurality of first light-emitting devices and configured to drive the plurality of first light-emitting devices to emit light by means of active driving; the first driving circuit includes a plurality of pixel driving circuits and signal lines coupled to the plurality of pixel driving circuits, the signal lines being located in the second display region, the signal lines extending substantially along the edge of the second display region close to the first display region, the signal lines being configured to be coupled to pixel driving circuits located on opposite sides of the second display region, and there being a gap between the orthographic projection of the signal lines on the substrate and the orthographic projection of the first display region on the substrate; A plurality of second light-emitting devices disposed on the substrate and located in the second display region; at least one of the plurality of second light-emitting devices has an orthographic projection on the substrate that overlaps the orthographic projection of the signal lines on the substrate; A second driving circuit disposed on the substrate, the second driving circuit being coupled to the plurality of second light-emitting devices and configured to drive the plurality of second light-emitting devices to emit light by means of passive driving.

2. The display panel according to claim 1, Characterized in that, The first display region includes a first sub-region and two second sub-regions oppositely disposed along a first direction, and the second sub-regions are located between the first sub-region and the second display region, the length of the second sub-region is substantially equal to the length of the second display region, the length direction of the second sub-region is along a second direction, and the second direction is perpendicular to the first direction; Along the first direction, the minimum distance between any two first light-emitting devices located in the first sub-region is less than the minimum distance between any two first light-emitting devices located in the second sub-region.

3. The display panel according to claim 2, Characterized in that, Along the first direction, the first light-emitting devices located in the first sub-region are arranged at equal intervals, and the distances between adjacent first light-emitting devices located in the second sub-region are sequentially increased.

4. The display panel according to claim 1, Characterized in that, The orthographic projection of the pixel driving circuit coupled to the first light-emitting device on the side close to the second display region on the substrate overlaps the orthographic projection of the gap on the substrate.

5. The display panel according to claim 4, Characterized in that, In the first display area, the multiple first light-emitting devices form multiple first display units and multiple second display units. Compared with the multiple first display units, the multiple second display units are closer to the second display area; both the first display units and the second display units include the multiple first light-emitting devices with the light-emitting colors of the three primary colors, where the light-emitting color of each first light-emitting device is one of the three primary colors. The first display unit includes four of the first light-emitting devices; the second display unit includes three of the first light-emitting devices.

6. The display panel according to claim 5, wherein, the positive projection of the pixel driving circuit coupled to at least one of the first light-emitting devices in the second display unit on the substrate overlaps with the positive projection of the gap on the substrate.

7. The display panel according to claim 6, wherein, the positive projection of the first light-emitting device coupled to the pixel driving circuit whose positive projection on the substrate overlaps with the positive projection of the gap on the substrate does not overlap with the positive projection of the pixel driving circuit on the substrate.

8. The display panel according to any one of claims 5 to 7, wherein, in the second display area, the multiple second light-emitting devices form multiple third display units. Each third display unit includes the second light-emitting devices with the light-emitting colors of the three primary colors, where the light-emitting color of each second light-emitting device is one of the three primary colors, and the number of the second light-emitting devices included in each third display unit is the same as the number of the first light-emitting devices included in the second display unit.

9. The display panel according to claim 8, wherein, the first light-emitting device includes a first electrode and a second electrode arranged oppositely, and all the first light-emitting devices share one second electrode; the second light-emitting device includes a third electrode and a fourth electrode arranged oppositely. The second light-emitting devices in the multiple third display units located in the same column share the same fourth electrode; the first electrode and the third electrode are of the same layer and the same material, and the second electrode and the fourth electrode are of the same layer and the same material.

10. The display panel according to claim 9, wherein, further comprising: multiple isolation structures, arranged in the second display area; the isolation structures are configured to separate adjacent second electrodes and fourth electrodes, and adjacent two fourth electrodes.

11. The display panel according to claim 10, wherein, in the case where the positive projection of the pixel driving circuit coupled to at least one of the first light-emitting devices in the second display unit on the substrate overlaps with the positive projection of the gap on the substrate: along the first direction, the isolation structure includes multiple protruding portions, and the protruding portions protrude toward the side away from the first display area.

12. The display panel according to claim 11, wherein, the isolation structure is an isolation column or an isolation groove.

13. The display panel according to claim 12, wherein, In a longitudinal section of the isolation column or isolation groove, a bottom side length of the isolation column or isolation groove is less than a top side length thereof; wherein, a direction of the longitudinal section is along the first direction.

14. The display panel according to claim 1, wherein, a minimum distance between any adjacent first light-emitting device and second light-emitting device is less than or equal to 60 μm.

15. The display panel according to claim 1, wherein, the pixel driving circuit includes an initialization signal line extending along a first direction, and the signal line is configured to connect the initialization signal lines located on opposite sides of the second display area, and the opposite sides of the second display area are opposite sides distributed along an extending direction of the initialization signal line.

16. The display panel according to claim 1, wherein, the first driving circuit further includes a scanning signal line, and the scanning signal line is configured to provide a scanning signal to the first driving circuit, and the scanning signal line extends along the first direction.

17. The display panel according to claim 1, wherein, further comprising: a first driving module and a second driving module, the first driving module is configured to provide a driving signal to the first driving circuit; the second driving module is configured to provide a driving signal to the second driving circuit.

18. A display device, wherein, comprises the display panel according to any one of claims 1 to 17.

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