Display panel and display device

Abstract

The present invention discloses a display panel and a display device, wherein the display panel comprises a first light-emitting device located in a display light-transmitting area; a first pixel driving circuit located in a transition display area and electrically connected to the first light-emitting device; a signal wiring layer electrically connected to the first pixel driving circuit; a first wiring layer extending in a direction from the transition display area to the display light-transmitting area and connected between the first pixel driving circuit and the first light-emitting device, wherein the first wiring layer partially overlaps with the signal wiring layer; and a capacitor blocking layer located between the first wiring layer and the signal wiring layer, wherein the capacitor blocking layer comprises at least one organic insulating layer, so as to improve the problem of uneven display in the display light-transmitting area due to parasitic capacitance, and improve the display effect of the display light-transmitting area.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In the Camera Under Panel (CUP) technology, in order to improve the transmittance of light in the CUP area, the driving circuit that drives the pixels in the CUP area can be set outside the CUP area, and multiple leads can be used to electrically connect the driving circuit outside the CUP area with the pixels in the CUP area. However, a large number of leads with dense arrangement and long cross-line distances are prone to parasitic capacitance, resulting in uneven display in the CUP area, affecting the display quality of the display panel. Summary of the invention

[0003] Embodiments of the present invention provide a display panel and a display device, which can improve the problem of uneven display caused by parasitic capacitance in a light-transmitting area.

[0004] An embodiment of the present invention provides a display panel, comprising a light-transmitting display area, a main display area, and a transitional display area between the light-transmitting display area and the main display area, wherein the display panel comprises:

[0005] A first light emitting device is located in the display light-transmitting area;

[0006] A first pixel driving circuit, located in the transition display area and electrically connected to the first light emitting device to drive the first light emitting device to emit light;

[0007] A signal wiring layer, electrically connected to the first pixel driving circuit;

[0008] A first wiring layer extends in a direction from the transition display area to the display light-transmitting area and is connected between the first pixel driving circuit and the first light-emitting device, and the first wiring layer partially overlaps with the signal wiring layer;

[0009] The capacitor blocking layer is located between the first wiring layer and the signal wiring layer, and the capacitor blocking layer includes at least one organic insulating layer.

[0010] In some embodiments, the relative dielectric constant of the organic insulating layer is less than or equal to 3.8.

[0011] In some embodiments, the relative dielectric constant of the organic insulating layer is less than or equal to 3.3.

[0012] In some embodiments, the thickness of the organic insulating layer is greater than or equal to 0.5 micrometers and less than or equal to 3 micrometers.

[0013] In some embodiments, the thickness of the organic insulating layer is greater than or equal to 1.5 micrometers and less than or equal to 2.5 micrometers.

[0014] In some embodiments, the visible light transmittance of the organic insulating layer is greater than or equal to 85%.

[0015] In some embodiments, the organic insulating layer includes a photosensitive resin composition.

[0016] In some embodiments, the photosensitive resin composition includes a solvent, an additive, a photopolymerization initiator, and a polymer having at least one structure selected from a polyimide precursor structure, a polybenzoxazole precursor structure, a silicon-based precursor structure, a polyacrylic acid precursor structure, and a phenolic resin structure as a main component.

[0017] In some embodiments, the capacitive blocking layer further includes an inorganic insulating layer located on at least one side of the organic insulating layer.

[0018] In some embodiments, the inorganic insulating layer is located between the organic insulating layer and the signal wiring layer, and / or the inorganic insulating layer is located between the organic insulating layer and the first wiring layer.

[0019] In some embodiments, the organic insulating layer includes a first organic insulating layer and a second organic insulating layer, and a preparation material of the first organic insulating layer is different from a preparation material of the second organic insulating layer.

[0020] In some embodiments, the signal routing layer includes a power signal line connected to the first voltage terminal.

[0021] In some embodiments, the display panel further comprises:

[0022] A first insulating layer, located between the first pixel driving circuit and the signal wiring layer, wherein the signal wiring layer is connected to the first pixel driving circuit through a via hole on the first insulating layer;

[0023] The planar layer is located between the first wiring layer and the first light-emitting device, and the first light-emitting device is connected to the first wiring layer through a via hole on the planar layer.

[0024] The present invention further provides a display device, comprising any one of the above display panels.

[0025] A display panel and a display device provided by an embodiment of the present invention, the display panel includes a display light-transmitting area, a main display area and a transition display area located between the display light-transmitting area and the main display area, the display panel includes: a first light-emitting device located in the display light-transmitting area; a first pixel driving circuit located in the transition display area and electrically connected to the first light-emitting device for driving the first light-emitting device to emit light; a signal wiring layer electrically connected to the first pixel driving circuit; a first wiring layer extending in a direction from the transition display area to the display light-transmitting area and connected between the first pixel driving circuit and the first light-emitting device, the first wiring layer partially overlapping with the signal wiring layer; a capacitor blocking layer located between the first wiring layer and the signal wiring layer, the capacitor blocking layer including at least one organic insulating layer to improve the problem of uneven display in the display light-transmitting area due to parasitic capacitance, and improve the display effect of the display light-transmitting area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The technical solutions and other beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0027] Figure 1A A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0028] Figure 1B for Figure 1A A partial enlarged view of the middle A;

[0029] Figure 1C to Figure 1H for Figure 1A The schematic diagram of the structure of the panel cut along BB' is shown in the figure.

[0030] Figure 2 A graph showing the relationship between the driving current change rate and the parasitic capacitance change provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0033] Specifically, see Figure 1A , which is a schematic diagram of the structure of a display panel provided by an embodiment of the present invention; Figure 1B As shown, it is Figure 1A A local enlarged view of the middle A; Figure 1C to Figure 1H , which is Figure 1A The schematic diagram of the structure of the panel cut along B-B' is shown in FIG. Figure 2 As shown, it is a diagram showing the relationship between the driving current change rate and the parasitic capacitance change provided by an embodiment of the present invention.

[0034] An embodiment of the present invention provides a display panel 100, comprising a light-transmitting display area 100a, a main display area 100c, and a transitional display area 100b located between the light-transmitting display area 100a and the main display area 100c. The display panel 100 comprises:

[0035] A first light emitting device 101, located in the display light-transmitting area 100a;

[0036] A first pixel driving circuit 102, located in the transition display area 100b, and electrically connected to the first light emitting device 101 to drive the first light emitting device 101 to emit light;

[0037] The signal wiring layer 103 is located on a side of the first pixel driving circuit 102 close to the first light emitting device 101 and is electrically connected to the first pixel driving circuit 102;

[0038] A first wiring layer 104 is located at a side of the signal wiring layer 103 away from the first pixel driving circuit 102, extends in a direction from the transition display area 100b to the display light-transmitting area 100a, and is connected between the first pixel driving circuit 102 and the first light-emitting device 101, and the first wiring layer 104 partially overlaps with the signal wiring layer 103;

[0039] The capacitor blocking layer 105 is located between the first wiring layer 104 and the signal wiring layer 103. The capacitor blocking layer 105 includes at least one organic insulating layer 1051 to reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103, thereby reducing the parasitic capacitance Cp on the driving current I driving the first light emitting device 101 to emit light. 1 , thereby achieving uniform display of the display translucent area 100a.

[0040] Please continue reading Figure 1A to Figure 1F , the parasitic capacitance Cp generated by the first routing layer 104 and the signal routing layer 103 is Cp=Sε / 4πkd; wherein S is the overlapping area between the first routing layer 104 and the signal routing layer 103, ε is the relative dielectric constant of the capacitor blocking layer 105, d is the thickness of the capacitor blocking layer 105, and k is the electrostatic force constant. Therefore, the parasitic capacitance Cp generated by the first routing layer 104 and the signal routing layer 103 is affected by the overlapping area S between the first routing layer 104 and the signal routing layer 103, the thickness d of the dielectric layer (i.e., the capacitor blocking layer 105) between the first routing layer 104 and the signal routing layer 103, and the relative dielectric constant ε. Therefore, the parasitic capacitance Cp generated by the first routing layer 104 and the signal routing layer 103 can be reduced by adjusting the overlapping area S between the first routing layer 104 and the signal routing layer 103 and / or the thickness d of the capacitor blocking layer 105, and the relative dielectric constant ε.

[0041] That is, when the parameters of the capacitor blocking layer 105 are constant, the smaller the overlapping area S of the first routing layer 104 and the signal routing layer 103 is, the smaller the parasitic capacitance Cp generated between the first routing layer 104 and the signal routing layer 103 is. However, the overlapping area S of the first routing layer 104 and the signal routing layer 103 is affected by factors such as the high resolution requirement of the display panel and the wiring process, and the first routing layer 104 and the signal routing layer 103 will inevitably have overlapping areas S of different sizes. Therefore, the parasitic capacitance Cp generated between the first routing layer 104 and the signal routing layer 103 can be further reduced by adjusting the parameters of the capacitor blocking layer 105.

[0042] Specifically, the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103 is reduced by reducing the relative dielectric constant ε of the capacitance blocking layer 105 and / or increasing the thickness d of the capacitance blocking layer 105 .

[0043] Furthermore, the relative dielectric constant of the organic insulating layer 1051 is reduced to reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103; for example, under the test condition of a frequency of 100kHz, the relative dielectric constant of the organic insulating layer 1051 may be less than or equal to 3.8. Furthermore, the relative dielectric constant of the organic insulating layer 1051 is less than or equal to 3.3 to better reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103.

[0044] The organic insulating layer 1051 includes a weakly polar material or a non-polar material; the organic insulating layer 1051 includes a photosensitive resin composition. The photosensitive resin composition includes a solvent, an additive, a photopolymerization initiator, and a polymer having at least one structure selected from a polyimide precursor structure, a polybenzoxazole precursor structure, a silicon-based precursor structure, a polyacrylic acid precursor structure, and a phenolic resin structure as a main component. The organic insulating layer 1051 can reduce the relative dielectric constant of the organic insulating layer 1051 by selecting a main chain structure of a low-polarity polymer and grafting a large-volume, low-polarity side chain on the main chain.

[0045] Specifically, the thickness of the organic insulating layer 1051 is increased to reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103; wherein the thickness of the organic insulating layer 1051 is greater than or equal to 0.5 micrometers and less than or equal to 3 micrometers. For example, the thickness of the organic insulating layer 1051 may be equal to 0.5 micrometers, 0.55 micrometers, 0.7 micrometers, 0.85 micrometers, 1.2 micrometers, 1.4 micrometers, 1.8 micrometers, 2.2 micrometers, 2.5 micrometers, 2.8 micrometers, 2.9 micrometers, 2.98 micrometers, 3 micrometers, etc.

[0046] Furthermore, in order to ensure the transmittance of the display light-transmitting area 100a, the thickness of the first wiring layer 104 is generally thin, and the capacitor blocking layer 105 is located under the first wiring layer 104. If the thickness of the capacitor blocking layer 105 is thin, there is a step difference on the capacitor blocking layer 105, which is very likely to cause problems such as cracks and broken wires in the first wiring layer 104, affecting the normal display of the display light-transmitting area 100a. Therefore, making the organic insulating layer 1051 have a certain thickness can eliminate the step difference on the capacitor blocking layer 105 and avoid problems such as cracks and broken wires in the first wiring layer 104. However, if the thickness of the organic insulating layer 1051 is too large, it will increase the difficulty of film stress matching of the display panel 100 in the process, causing problems such as warping or breaking of the display panel 100. Therefore, in order to make the first organic insulating layer 1051 flatten the film layer, reduce the difficulty of stress matching of the film layer, and prevent the display panel 100 from warping or breaking, and in order to reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103, the thickness of the organic insulating layer 1051 can be greater than or equal to 1.5 microns and less than or equal to 2.5 microns. For example, the thickness of the organic insulating layer 1051 can be equal to 1.5 microns, 1.55 microns, 1.7 microns, 1.85 microns, 1.9 microns, 1.94 microns, 2 microns, 2.2 microns, 2.35 microns, 2.4 microns, 2.5 microns, etc.

[0047] In addition, in order to prevent the organic insulating layer 1051 from affecting the transmittance of the display light-transmitting area 100a, the visible light transmittance of the organic insulating layer 1051 can be greater than or equal to 85%. For example, the visible light transmittance of the organic insulating layer 1051 can be equal to 85%, 88%, 90%, 93%, 95%, 98%, 99%, etc.

[0048] Please continue reading Figure 1D In order to reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103 while ensuring that the display light-transmitting area 100a still has a good transmittance and maintain a balance of various properties of the display light-transmitting area 100a, the organic insulating layer 1051 can adopt a multi-layer structure design.

[0049] Specifically, the organic insulating layer 1051 includes a first organic insulating layer 1052 and a second organic insulating layer 1053, and the preparation material of the first organic insulating layer 1052 is different from the preparation material of the second organic insulating layer 1053, so as to reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103, while improving the transmittance of the display translucent area 100a, or the interface adhesion of the organic insulating layer 1051 and other performance.

[0050] Furthermore, the first organic insulating layer 1052 and the second organic insulating layer 1053 have different dielectric constants; further, the first organic insulating layer 1052 and the second organic insulating layer 1053 have different transmittances. If the dielectric constants of the first organic insulating layer 1052 and the second organic insulating layer 1053 are similar, if the transmittance of the first organic insulating layer 1052 is better than the transmittance of the second organic insulating layer 1053, the thickness of the second organic insulating layer 1053 can be made greater than the thickness of the first organic insulating layer 1052, so as to reduce the influence of the organic insulating layer 1051 on the transmittance of the display light-transmitting area 100a, and reduce the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103. Wherein, the first organic insulating layer 1052 and the second organic insulating layer 1053 include the photosensitive resin composition.

[0051] It is understandable that the organic insulating layer 1051 may further include a third organic insulating layer, a fourth organic insulating layer, etc., to further adjust the light transmittance and other properties of the display light-transmitting area 100a, which will not be elaborated herein.

[0052] Please continue reading Figure 1E to Figure 1H The capacitor blocking layer 105 further includes an inorganic insulating layer 1054 located on at least one side of the organic insulating layer 1051 to maintain a balance of various properties of the display light-transmitting area 100a.

[0053] Specifically, the inorganic insulating layer 1054 is located between the organic insulating layer 1051 and the signal wiring layer 103 , and / or the inorganic insulating layer 1054 is located between the first wiring layer 104 and the organic insulating layer 1051 .

[0054] It can be understood that the inorganic insulating layer 1054 can also be located between the two organic insulating layers 1051; further, the organic insulating layer 1051 and the inorganic insulating layer 1054 can be periodically arranged between the first wiring layer 104 and the signal wiring layer 103, that is, the capacitor blocking layer 105 can include the organic insulating layer 1051 and the inorganic insulating layer 1054 stacked on each other, and the organic insulating layer 1051 and the inorganic insulating layer 1054 stacked on each other can be periodically and repeatedly arranged between the first wiring layer 104 and the signal wiring layer 103.

[0055] Since the inorganic insulating layer 1054 has better water and oxygen barrier properties than the organic insulating layer 1051, the inorganic insulating layer 1054 is disposed on at least one side of the organic insulating layer 1051 to block the influence of the gas or water vapor released by the organic insulating layer 1051 in the process on the first wiring layer 104 and the signal wiring layer 103. In addition, when the organic insulating layer 1051 is located under the inorganic insulating layer 1054, the gas or water vapor released by the organic insulating layer 1051 in the process causes the display panel 100 to bulge in some areas, thereby ensuring that the display panel 100 has good flatness.

[0056] Please continue reading Figure 1A to Figure 1H , the signal wiring layer 103 includes a power signal line connected to the first voltage terminal VDD. Further, as Figure 1G As shown, the first pixel driving circuit 102 includes a plurality of transistors 109, the power signal line is electrically connected to one of the source or drain of at least one of the transistors 109, and the first wiring layer 104 is electrically connected to one of the source or drain of at least one of the transistors 109, so that the first light-emitting device 101 emits light under the drive of the first pixel driving circuit 102. The parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103 is reduced by the capacitor blocking layer 105, thereby reducing the parasitic capacitance Cp on the driving current I driving the first light-emitting device 101 to emit light. 1 The influence of the light-transmitting area 100a is improved to improve the display uniformity.

[0057] The plurality of transistors 109 include at least one of oxide transistors and silicon transistors. The plurality of transistors 109 include field effect transistors; further, the plurality of transistors 109 include thin film transistors. It is understood that the structure of the plurality of transistors 109 is not limited to Figure 1G The double-gate structure shown is a structure that can be used by those skilled in the art. Other structures, such as a single-gate structure, etc., are also available and will not be described in detail here.

[0058] Please continue reading Figure 2 When the parasitic capacitance Cp generated between the first wiring layer 104 and the signal wiring layer 103 is reduced from 300fF (femtofarad) to 50fF, that is, the parasitic capacitance Cp is reduced by 6 times, the driving current I 1 The change rate of the parasitic capacitance Cp to the driving current I 1 The influence of is significantly reduced, which is conducive to achieving uniform display of the display light-transmitting area 100a.

[0059] Please continue reading Figure 1A to Figure 1H , the display panel 100 further includes:

[0060] A first insulating layer 106 is located between the first pixel driving circuit 102 and the signal wiring layer 103 , and the signal wiring layer 103 is connected to the first pixel driving circuit 102 through a via hole on the first insulating layer 106 ;

[0061] The planar layer 107 is located between the first wiring layer 104 and the first light-emitting device 101 . The first light-emitting device 101 is connected to the first wiring layer 104 through via holes on the planar layer 107 .

[0062] Furthermore, the first light emitting device 101 includes:

[0063] The first anode 1011 is located on a side of the planar layer 107 away from the first wiring layer 104. The material of the first anode 1011 includes a transparent conductive film. Further, the material of the first anode 1011 includes one of indium tin oxide, indium tin oxide zinc, etc., or a combination of indium tin oxide, indium tin oxide zinc and silver.

[0064] A first cathode 1013 is located on a side of the first anode 1011 away from the flat layer 107; and

[0065] The first light-emitting layer 1012 is located between the first anode 1011 and the first cathode 1013 .

[0066] Furthermore, the first light-emitting layer 1012 also includes one of quantum dot materials, perovskite materials, and fluorescent materials.

[0067] The first light emitting device 101 includes at least one of an organic light emitting diode, a micro light emitting diode and a sub-millimeter light emitting diode.

[0068] The first light emitting device 101 includes a red light emitting device, a blue light emitting device, a green light emitting device, a white light emitting device, and the like.

[0069] Please continue reading Figure 1A to Figure 1H , the display panel 100 further includes:

[0070] A substrate 110, on which the first pixel driving circuit 102 is located, and the substrate 110 includes a rigid substrate and a flexible substrate. The substrate 110 is made of a material including glass, quartz, ceramic, plastic or polymer resin, etc. The polymer resin includes at least one of polyethersulfone, polyacrylate, polyarylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyallyl ester, polyimide, polycarbonate, cellulose triacetate, and cellulose acetate propionate.

[0071] The pixel definition layer 108 is located on the first anode 1011 and the planar layer 107 , and the first light emitting layer 1012 is located in a pixel definition region of the pixel definition layer 108 .

[0072] Furthermore, the display panel 100 may further include a touch electrode, a buffer layer, an encapsulation layer, a color filter layer and other parts not shown.

[0073] For further information, see Figure 1H As shown, the first wiring layer 104 includes a plurality of connecting wirings 1041 located at different layers, an insulating layer 1042 is provided between the plurality of connecting wirings 1041, and the plurality of connecting wirings 1041 are electrically connected through vias on the insulating layer 1042 to reduce wiring density. The plurality of interconnected connecting wirings 1041 extend from the transition display area 100b to the display light-transmitting area 100a to realize electrical connection between the first pixel driving circuit 102 and the first light-emitting device 101. Figure 1B In the figure, only the portion of the first wiring layer 104 located in the transition display area 100b is shown, and the portion of the first wiring layer 104 located in the display light-transmitting area 100a is not shown.

[0074] Please continue reading Figure 1A to Figure 1B , the display panel 100 further includes:

[0075] A second light emitting device 200, located in the transition display area 100b, the second light emitting device 200 is driven to emit light by the first pixel driving circuit 102;

[0076] A third light emitting device 300 is located in the main display area 100c;

[0077] The second pixel driving circuit is located in the main display area 100c and is used to drive the third light emitting device 300 to emit light.

[0078] Further, the light emitting area of ​​the third light emitting device 300 is larger than the light emitting area of ​​the first light emitting device 101 ; further, the light emitting area of ​​the third light emitting device 300 is larger than the light emitting area of ​​the second light emitting device 200 .

[0079] Furthermore, the display panel 100 includes a first pixel unit located in the display light-transmitting area 100 a , the first pixel unit includes a plurality of first pixels, each of the first pixels includes a plurality of sub-pixels, and the sub-pixels are formed by the first light-emitting devices 101 .

[0080] Furthermore, the sub-pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel with different luminous colors, and the first pixel includes two of the first sub-pixels, two of the second sub-pixels, and four of the third sub-pixels. The first sub-pixel, the second sub-pixel, and the third sub-pixel include a red sub-pixel, a green sub-pixel, a blue sub-pixel, a white sub-pixel, etc. Specifically, the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.

[0081] Furthermore, the display panel 100 further includes:

[0082] The second pixel unit is located in the transition display area 100b, and the second pixel unit includes a plurality of second pixels, and the second pixel includes a plurality of transition sub-pixels, and the transition sub-pixels are formed by the second light-emitting device 200. The number and arrangement of the transition sub-pixels included in the second pixel are the same as the number and arrangement of the sub-pixels included in the first pixel.

[0083] The third pixel unit is located in the main display area 100c, and the third pixel unit includes a plurality of third pixels, and the third pixel includes a plurality of main sub-pixels, and the main sub-pixels are formed by the third light-emitting device 300. The number and arrangement of the main sub-pixels included in the third pixel are the same as the number and arrangement of the sub-pixels included in the first pixel, so that the main display area 100c, the transition display area 100b and the display light-transmitting area 100a have similar or identical display effects.

[0084] It can be understood that the display panel 100 may include a plurality of the display light-transmitting areas 100 a , and the positions of the plurality of the display light-transmitting areas 100 a may be set according to actual needs, which will not be described in detail herein.

[0085] The present invention further provides a display device, comprising any one of the above display panels.

[0086] Furthermore, the display device also includes a sensor, and the sensor is facing the display light-transmitting area, so that the display device can realize functions such as fingerprint recognition, camera, light sensing, and distance sensing.

[0087] Specifically, the sensor includes a fingerprint recognition sensor, a camera, a structured light sensor, a time-of-flight sensor, a distance sensor, a light sensor, etc., so that the sensor can collect signals through the display translucent area, thereby enabling the display device to realize under-screen fingerprint recognition, under-screen camera, under-screen face recognition, under-screen distance perception and other under-screen sensing solutions.

[0088] Furthermore, the display device further comprises a touch panel, and the touch panel is combined with the display panel in a built-in or external manner, so that the display device has a touch function.

[0089] The display device includes fixed terminals such as televisions and desktop computers, mobile terminals such as mobile phones and laptops, and wearable devices such as bracelets, VR (virtual display) devices, and AR (augmented display) devices.

[0090] An embodiment of the present invention provides a display panel and a display device, wherein the display panel 100 includes a display light-transmitting area 100a, a main display area 100c, and a transitional display area 100b located between the display light-transmitting area 100a and the main display area 100c, and the display panel 100 includes: a first light-emitting device 101, located in the display light-transmitting area 100a; a first pixel driving circuit 102, located in the transitional display area 100b, and electrically connected to the first light-emitting device 101 for driving the first light-emitting device 101 to emit light; a signal routing layer 103, located on a side of the first pixel driving circuit 102 close to the first light-emitting device 101, and electrically connected to the first pixel driving circuit 1 02; a first wiring layer 104, located on a side of the signal wiring layer 103 away from the first pixel driving circuit 102, extending along the direction from the transition display area 100b to the display light-transmitting area 100a, and connected between the first pixel driving circuit 102 and the first light-emitting device 101, the first wiring layer 104 partially overlaps with the signal wiring layer 103; a capacitor blocking layer 105, located between the first wiring layer 104 and the signal wiring layer 103, the capacitor blocking layer 105 includes at least one organic insulating layer 1051, so as to improve the problem of uneven display in the display light-transmitting area 100a due to the parasitic capacitance Cp, and improve the display effect of the display light-transmitting area 100a.

[0091] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0092] The display panel and the display device provided in the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that: The display panel comprises a light-transmitting display area, a main display area and a transitional display area between the light-transmitting display area and the main display area. The display panel comprises: A first light emitting device is located in the display light-transmitting area; A first pixel driving circuit, located in the transition display area and electrically connected to the first light emitting device to drive the first light emitting device to emit light; A signal wiring layer, electrically connected to the first pixel driving circuit; A first wiring layer extends in a direction from the transition display area to the display light-transmitting area and is connected between the first pixel driving circuit and the first light-emitting device, and the first wiring layer partially overlaps with the signal wiring layer; A capacitor blocking layer, located between the first wiring layer and the signal wiring layer, the capacitor blocking layer comprising at least one organic insulating layer; Among them, the overlapping areas of the first routing layer and the signal routing layer in different regions are different; the signal routing layer includes a power signal line connected to a first voltage end, the first pixel driving circuit includes multiple transistors, the power signal line is electrically connected to one of the source or drain of one of the multiple transistors, and the first routing layer is electrically connected to one of the source or drain of another transistor among the multiple transistors.

2. The display panel according to claim 1, characterized in that: The relative dielectric constant of the organic insulating layer is less than or equal to 3.

8.

3. The display panel according to claim 2, characterized in that: The relative dielectric constant of the organic insulating layer is less than or equal to 3.

3.

4. The display panel according to claim 1, characterized in that: The thickness of the organic insulating layer is greater than or equal to 0.5 micrometers and less than or equal to 3 micrometers.

5. The display panel according to claim 4, characterized in that: The thickness of the organic insulating layer is greater than or equal to 1.5 micrometers and less than or equal to 2.5 micrometers.

6. The display panel according to claim 1, characterized in that: The visible light transmittance of the organic insulating layer is greater than or equal to 85%.

7. The display panel according to claim 1, characterized in that: The organic insulating layer includes a photosensitive resin composition.

8. The display panel according to claim 7, characterized in that: The photosensitive resin composition comprises a solvent, an additive, a photopolymerization initiator, and a polymer having at least one structure selected from a polyimide precursor structure, a polybenzoxazole precursor structure, a silicon-based precursor structure, a polyacrylic acid precursor structure, and a phenolic resin structure as a main component.

9. The display panel according to claim 1, characterized in that: The capacitor blocking layer further includes an inorganic insulating layer located on at least one side of the organic insulating layer.

10. The display panel according to claim 9, characterized in that: The inorganic insulating layer is located between the organic insulating layer and the signal wiring layer, and / or the inorganic insulating layer is located between the organic insulating layer and the first wiring layer.

11. The display panel according to claim 1, characterized in that: The organic insulating layer includes a first organic insulating layer and a second organic insulating layer, and a preparation material of the first organic insulating layer is different from a preparation material of the second organic insulating layer.

12. The display panel according to claim 1, characterized in that: The display panel further includes: A first insulating layer, located between the first pixel driving circuit and the signal wiring layer, wherein the signal wiring layer is connected to the first pixel driving circuit through a via hole on the first insulating layer; The planar layer is located between the first wiring layer and the first light-emitting device, and the first light-emitting device is connected to the first wiring layer through a via hole on the planar layer.

13. A display device, characterized in that: It comprises the display panel as claimed in any one of claims 1 to 12.

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