Light emitting panel and light emitting device

Abstract

The embodiment of the present application discloses a light-emitting panel and a light-emitting device. The light-emitting panel comprises a light-emitting device, the light-emitting device is used for emitting light in response to a driving signal; an electrode trace, the electrode trace is connected with the light-emitting device, and the electrode trace is used for transmitting the driving signal to the light-emitting device; the electrode trace comprises at least two first conductive parts and at least one second conductive part, and the first conductive part is used for bonding a flexible circuit board. The technical scheme provided by the embodiment of the present application reduces the damage of water oxygen corrosion to the electrode trace, avoids the situation that the light-emitting area is not bright due to the water oxygen corrosion of the electrode trace, and improves the light-emitting effect and the service life of the light-emitting panel.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of light emitting technology, and in particular to a light emitting panel and a light emitting device. BACKGROUND

[0002] With the development of light emitting technology, people have higher and higher requirements for light emitting panels. Organic light emitting diodes are very sensitive to water and oxygen. Water and oxygen entering the screen body can cause water and oxygen corrosion damage to the screen body. The electrode lead of the existing light emitting panel is eroded by water and oxygen in a short time in a high temperature and high humidity environment, thereby causing individual light emitting areas of the light emitting panel to be not bright, affecting the display effect of the light emitting panel, and further affecting the light emitting effect of the light emitting panel. SUMMARY

[0003] Embodiments of the present application provide a light emitting panel and a light emitting device to solve the problem that the electrode lead of the light emitting panel is eroded by water and oxygen, causing individual light emitting areas to be not bright, affecting the light emitting effect of the light emitting panel.

[0004] Embodiments of the present application provide a light emitting panel, comprising: a light emitting device, the light emitting device being configured to emit light in response to a driving signal; an electrode trace, the electrode trace being connected to the light emitting device, the electrode trace being configured to transmit the driving signal to the light emitting device; the electrode trace comprising at least two first conductive parts and at least one second conductive part connected in an electrical manner, the first conductive parts being configured to bond a flexible printed circuit board; wherein the water and oxygen permeability of the second conductive part is less than the water and oxygen permeability of the first conductive part.

[0005] Optionally, the at least two first conductive parts are arranged in a spaced manner.

[0006] The second conductive part is configured to connect the first conductive parts arranged in a spaced manner.

[0007] Optionally, the light emitting panel comprises a substrate.

[0008] The second conductive part is arranged on one side of the substrate.

[0009] The first conductive part is arranged on a side of the second conductive part away from the substrate.

[0010] The flexible printed circuit board is arranged on a side of the first conductive part away from the substrate.

[0011] The first conductive part has a greater conductive capacity than the second conductive part.

[0012] The orthographic projection of the at least one first conductive part on the substrate overlaps the orthographic projection of the second conductive part on the substrate.

[0013] Optionally, the light emitting panel comprises a light emitting area and a non-light emitting area.

[0014] In a first direction, the electrode trace extends from the light emitting area to the non-light emitting area.

[0015] The first conductive part and the second conductive part are located in the non-light emitting area;

[0016] The flexible circuit board comprises at least one pad;

[0017] In the first direction, each pad is connected to an electrode trace by bonding.

[0018] Optionally, in the first direction, at least part of the first conductive part is embedded in the second conductive part.

[0019] In the first direction, the length of the first conductive part ranges from 1 μm to 10 μm.

[0020] Optionally, the width of the first conductive part is less than or equal to the width of the second conductive part.

[0021] The thickness of the first conductive part is greater than or equal to the thickness of the second conductive part.

[0022] Optionally, the at least one first conductive part comprises a first embedding structure, which is arranged on the side of the first conductive part away from the second conductive part.

[0023] The at least one pad of the flexible circuit board comprises a second embedding structure, which is arranged on the side of the pad adjacent to the first conductive part.

[0024] When the flexible circuit board is bonded to the electrode trace, the first embedding structure and the second embedding structure are embedded in each other. Optionally, the first embedding structure comprises a groove, and the second embedding structure comprises a protruding part; or,

[0025] The first embedding structure comprises a protruding part, and the second embedding structure comprises a groove.

[0026] The shape of the first embedding structure and the second embedding structure comprises at least one of a "cross" shape, a T shape, a circular shape, a triangular shape or a polygonal shape.

[0027] Preferably, the shape of the first embedding structure and the second embedding structure is the same.

[0028] Optionally, the material of the first conductive part comprises at least one of aluminum, titanium-aluminum-titanium, molybdenum or molybdenum-aluminum-molybdenum.

[0029] The material of the second conductive part comprises indium tin oxide.

[0030] In a second aspect, a light emitting device is provided, which comprises the light emitting panel according to any of the above.

[0031] The light-emitting panel provided by the embodiment of the present application comprises a light-emitting device, electrode traces and a flexible circuit board. Each electrode trace comprises at least two electrically connected first conductive parts and second conductive parts, and the water-oxygen permeability of the second conductive parts is less than that of the first conductive parts. After the light-emitting panel is activated, driving signals are transmitted to the light-emitting device through the electrode traces, and the light-emitting device emits light in response to the driving signals. As the light-emitting panel is used for a long time or is in a high-temperature and high-humidity environment, even if the first conductive parts on the inner and outer sides of the electrode traces are corroded by water and oxygen, the first conductive parts in other parts can still maintain good conductive performance and continue to transmit the driving signals. The problem that the electrode traces are corroded by water and oxygen, causing individual light-emitting areas to be not bright and affecting the display effect of the light-emitting panel is solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0033] Figure 1 is a structural schematic diagram of a light-emitting panel provided by the embodiment of the present application;

[0034] Figure 2 is a structural schematic diagram of a light-emitting panel provided by the embodiment of the present application; Figure 1 is an enlarged schematic diagram of the C area of the light-emitting panel in

[0035] Figure 3 is a sectional schematic diagram of the light-emitting panel in Figure 1 along the AA' direction;

[0036] Figure 4 is a sectional schematic diagram of the light-emitting panel in Figure 1 along the BB' direction;

[0037] Figure 5A is a structural schematic diagram of an electrode trace provided by the embodiment of the present application;

[0038] Figure 5B is a structural schematic diagram of another electrode trace provided by the embodiment of the present application;

[0039] Figure 6 is an embedded structural schematic diagram provided by the embodiment of the present application;

[0040] Figure 7 is another embedded structural schematic diagram provided by the embodiment of the present application;

[0041] Figure 8 is a schematic diagram of another embedded structure provided by an embodiment of the present application;

[0042] Figure 9 is a schematic diagram of another embedded structure provided by an embodiment of the present application;

[0043] Figure 10 is a schematic diagram of a non-light emitting area of a light emitting panel provided by an embodiment of the present application;

[0044] Figure 11 is a schematic diagram of a light emitting device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0045] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0046] Figure 1 is a schematic diagram of a light emitting panel provided by an embodiment of the present application. Figure 2 is a light emitting panel provided by an embodiment of the present application Figure 1 is an enlarged schematic diagram of a C area of the light emitting panel in Figure 3 is a schematic diagram of a light emitting panel provided by an embodiment of the present application along Figure 1 is a schematic diagram of a cross section of the light emitting panel in Figures 1 to 3 , the light emitting panel 100 provided by an embodiment of the present application comprises a light emitting device 10, the light emitting device 10 is used to emit light in response to a driving signal. An electrode trace 30 is connected with the light emitting device 10, the electrode trace 30 is used to transmit the driving signal to the light emitting device 10. The electrode trace 30 comprises at least two first conductive parts 40 and at least one second conductive part 50 which are electrically connected, the first conductive part 40 is used to bond a flexible circuit board 20; wherein the water and oxygen permeability of the second conductive part 50 is less than the water and oxygen permeability of the first conductive part 40.

[0047] Specifically, the light emitting device 10 can comprise an organic light emitting diode or a liquid crystal display, etc. The light emitting device 10 emits light in response to the received driving signal. The electrode trace 30 is connected between a driving module and the light emitting device 10, the electrode trace 30 is used to transmit the driving signal to the electrode of the light emitting device 10. The light emitting device 10 emits light according to the driving signal received by its electrode, the light emitting device 10 can be one or more, corresponding to one or more electrode traces 30.

[0048] The light-emitting panel further comprises a flexible circuit board 20, the flexible circuit board 20 is used for bonding connection with the electrode traces 30, a driving module can be arranged on the flexible circuit board 20, the flexible circuit board 20 is used for extending the electrode traces 30 to the non-light-emitting side of the light-emitting panel, so that the driving module can be arranged on the back of the light-emitting panel, thereby reducing the frame size of the light-emitting panel.

[0049] By setting each electrode trace 30 comprising at least two first conductive parts 40 and at least one second conductive part 50 connected in an electrically conductive manner, and the water-oxygen permeability of the first conductive part 40 is different from that of the second conductive part 50. The first conductive part 40 of the electrode trace 30 bonded and connected by the same wire of the flexible circuit board 20 is connected through the second conductive part 50. When the water-oxygen concentration of the environment where the light-emitting panel is located is relatively high, the first conductive part 40 of the electrode trace located in the non-light-emitting area away from the light-emitting area is prone to water-oxygen corrosion. Since the water-oxygen permeability of the second conductive part 50 is less than that of the first conductive part 40, the second conductive part 50 is not prone to corrosion, and the water-oxygen corrosion of the first conductive part 40 located on the outside will not extend to the first conductive part 40 located on the same electrode trace 30 through the second conductive part 50. This setting makes at least one first conductive part 40 connected through the second conductive part 50 not prone to water-oxygen corrosion, ensures that the electrode trace 30 is electrically connected to the flexible circuit board 20 through the first conductive part 40 which is not corroded by water-oxygen, and ensures the smooth transmission of the driving signal, thereby improving the water-oxygen corrosion resistance of the electrode trace 30.

[0050] For example, the driving signal emitted by the control module is transmitted to the light-emitting device 10 through the electrode trace 30, and the light-emitting device 10 emits light in response to the driving signal. As the light-emitting panel is used for a long time or is in a high-temperature and high-humidity environment for a long time, the electrode trace 30 will be corroded by water-oxygen to a certain extent. Since the electrode trace 30 contains multiple first conductive parts 40, even if the first conductive parts 40 on the inside and outside of the electrode trace 30 are corroded by water-oxygen, resulting in a decrease in conductivity, the other first conductive parts 40 located on the same electrode trace 30 can still maintain good conductivity and continue to transmit the driving signal.

[0051] The light-emitting panel provided in the embodiment comprises a light-emitting device, an electrode trace and a flexible circuit board. By setting at least two first conductive parts and a second conductive part in each electrode trace, the connection of the electrode trace can be ensured, and the expansion of the water-oxygen corrosion area can be avoided, thereby further improving the water-oxygen corrosion resistance of the electrode trace of the light-emitting panel and improving the light-emitting effect of the light-emitting panel. This setting slows down the damage of water-oxygen corrosion to the electrode trace, and prevents the light-emitting area from being dark due to the corrosion of the electrode trace by water-oxygen. The light-emitting panel provided in the embodiment solves the problem that the lead wire in the electrode area is corroded by water-oxygen, resulting in that individual light-emitting areas are dark, and affecting the display effect of the light-emitting panel.

[0052] Optionally, based on the above embodiments, continuing to refer to Figure 2 The second conductive part 50 is arranged between the first conductive parts 40.

[0053] Specifically, in the electrode trace 30, the water and oxygen permeability of the second conductive part 50 is less than that of the first conductive part 40, that is, the first conductive part 40 is more susceptible to water and oxygen corrosion. The plurality of first conductive parts 40 are arranged on the second conductive part 50, which can ensure that the first conductive part 40 on the outside is subjected to water and oxygen corrosion. Since the first conductive part 40 is subjected to water and oxygen corrosion, there is a gap between the first conductive part 40 and other first conductive parts 40, which will not affect other first conductive parts 40. At the same time, water and oxygen will not further invade into the inside of the screen body by corroding the first conductive part 40 and the second conductive part 50, thereby avoiding damage to the screen body caused by water and oxygen.

[0054] The second conductive part 50 is arranged between the first conductive parts 40.

[0055] Optionally, based on the above embodiments, continuing to refer to Figure 3 The second conductive part 50 is arranged between the first conductive parts 40.

[0056] Specifically, the electrode trace 30 is arranged on the substrate 60, the second conductive part 50 is arranged on one side of the substrate 60, the first conductive part 40 is arranged on the side of the second conductive part 50 away from the substrate 60, and the flexible circuit board 20 is arranged on the side of the first conductive part 40 away from the substrate 60. Optionally, when there is only one second conductive part 50 on each electrode trace 30, the orthographic projection of at least one first conductive part 40 on the substrate 60 overlaps the orthographic projection of the second conductive part 50 on the substrate 60, so that the second conductive part 50 is arranged between the substrate and the first conductive part 40, that is, the side of the second conductive part 50 away from the substrate 60 corresponds to at least one first conductive part 40. Arranging the first conductive part 40 between the second conductive part 50 and the flexible circuit board 20 facilitates arranging the second conductive part 50 with low water and oxygen transmission rate on the side close to the substrate 60, which can further improve the water and oxygen resistance, avoid water and oxygen from invading the inside of the screen body through the substrate 60, and avoid damage to the screen body caused by water and oxygen. The first conductive part 40 with high water and oxygen transmission rate has a larger conductive capacity than the second conductive part 50, which facilitates bonding the electrode trace 30 and the flexible circuit board 20 through the first conductive part 40 with strong conductive capacity, improves the firmness and reliability of the bonding, reduces the bonding impedance, improves the transmission uniformity of the transmission driving signal, and further improves the light-emitting effect of the light-emitting panel. Such an arrangement not only slows down the corrosion of the electrode lead, but also prevents water and oxygen from entering the inside of the screen body through the bonding area, thereby avoiding damage to the light-emitting panel.

[0057] Optionally, Figure 4 is a kind of along Figure 1 The cross-sectional view of the light-emitting panel in the direction of BB' of the present embodiment is shown in the figure. Based on the above-mentioned embodiment, in combination with Figure 1 、 Figure 3 and Figure 4 The light-emitting panel provided by the present embodiment includes a light-emitting area 70 and a non-light-emitting area 80. Along the first direction Y, the electrode trace 30 extends from the light-emitting area 70 to the non-light-emitting area 80. The first conductive part 40 and the second conductive part 50 are located in the non-light-emitting area 80. The flexible circuit board 20 includes at least one solder pad 90. Along the first direction Y, each solder pad 90 is bonded and connected to one electrode trace 30.

[0058] Specifically, the light-emitting panel includes a light-emitting area 70 and a non-light-emitting area 80, the light-emitting area 70 is used for light-emitting display, and the non-light-emitting area 80 can include a frame or the like. The electrode trace 30 extends from the light-emitting area 70 to the non-light-emitting area 80 along the first direction Y, and the flexible circuit board 20 further includes at least one pad 90 for bonding and connecting the electrode trace 30 and the flexible circuit board 20 along the first direction Y. The first conductive part 40 in the electrode trace 30 in the non-light-emitting area 80 is more susceptible to water and oxygen corrosion. The non-light-emitting area 80 is more susceptible to water and oxygen corrosion, and the first conductive part 40 and the second conductive part 50 are arranged in the non-light-emitting area 80, which can improve the water and oxygen corrosion resistance of the electrode trace 30 in the non-light-emitting area 80, and does not affect the signal transmission of the light-emitting area 70, further improves the light-emitting effect of the light-emitting panel.

[0059] Optionally, Figure 5A With Figure 5B is a structure diagram of two electrode traces provided by the embodiment of the present application. Figure 5A In the embodiment, the width of the first conductive part 40 is equal to the width of the second conductive part 50, Figure 5B In the embodiment, the width of the first conductive part 40 is less than the width of the second conductive part 50, and on the basis of the above-mentioned embodiment, referring to Figure 5A With Figure 5B , along the first direction Y, at least part of the first conductive part 40 is embedded in the second conductive part 50, and along the first direction Y, the length L of the first conductive part 40 ranges from 1 μm to 10 μm.

[0060] Specifically, along the first direction Y, the first conductive part 40 is arranged in the second conductive part 50, and at least part of the first conductive part 40 is embedded in the second conductive part 50, which further increases the contact area of the first conductive part 40 and the second conductive part 50, and improves the stability of the driving signal transmission. Even if the first conductive part 40 located outside the light-emitting panel is corroded by water and oxygen, the electrode trace 30 includes the first conductive part 40 and the second conductive part 50 arranged alternately, which can avoid that the resistance of the first conductive part 40 is too large. In the case of considering the conductive performance of the first conductive part 40, when the length of the first conductive part 40 is 1 μm to 10 μm, the conductive effect is better. When the length of the first conductive part 40 is 1 μm to 10 μm, the width of the first conductive part 40 is constant, so that the bonding area of the first conductive part 40 and the flexible circuit board 20 is larger, which can reduce the conduction resistance of the bonding, reduce the voltage drop on the electrode trace 30, improve the uniformity of the driving signal transmitted on each electrode trace 30, and further improve the display effect of the light-emitting panel.

[0061] Optionally, on the basis of the above-mentioned embodiment, referring to Figure 4 , the width of the first conductive part 40 provided by the embodiment is equal to the width of the second conductive part 50, and the thickness of the first conductive part 40 is greater than or equal to the thickness of the second conductive part 50.

[0062] Specifically, the conductive performance of the first conductive part 40 is better than that of the second conductive part 50, the width of the second conductive part 50 is the width of the electrode trace 30, and the width of the first conductive part 40 is equal to the width of the second conductive part 50, so that the resistance of the first conductive part 40 is small and the conductive effect is good. After the first conductive part 40 is corroded by water and oxygen, the cross-sectional area is reduced, and a large amount of non-conductive oxide impurities are generated by water and oxygen corrosion, so that the resistance of the electrode trace 30 is increased. The thickness of the first conductive part 40 is greater than or equal to the thickness of the second conductive part 50, so that the thickness of the first conductive part 40 is thick and the cross-sectional area of the first conductive part 40 is large. Even when the first conductive part 40 is corroded by water and oxygen, the resistance of the first conductive part 40 is still small, and the transmission efficiency of the driving signal is not affected by the increase in resistance of the electrode trace 30 after the first conductive part 40 on the outer side is corroded by water and oxygen. This setting can avoid the first conductive part 40 from generating a large resistance after being corroded by water and oxygen, improve the uniformity of the driving signal transmitted on each electrode trace 30, and further improve the display effect of the light-emitting panel.

[0063] Optionally, Figure 6 is a schematic diagram of an embedding structure provided by an embodiment of the present application. Figure 7 is another schematic diagram of an embedding structure provided by an embodiment of the present application. Figure 8 is still another schematic diagram of an embedding structure provided by an embodiment of the present application. Figure 9 is still another schematic diagram of an embedding structure provided by an embodiment of the present application. Figure 10 is a schematic diagram of a non-light-emitting area of a light-emitting panel provided by an embodiment of the present application. On the basis of the above-mentioned embodiments, in combination with Figures 6 to 10 , at least one first conductive part 40 comprises a first embedding structure 301, and the first embedding structure 301 is arranged on the side of the first conductive part 40 away from the second conductive part 50; at least one pad 90 of the flexible circuit board 20 comprises a second embedding structure 901, and the second embedding structure 901 is arranged on the side of the pad 90 adjacent to the first conductive part 40; and the first embedding structure 301 and the second embedding structure 901 are embedded with each other when the flexible circuit board 20 is bonded to the electrode trace 30.

[0064] Specifically, by arranging the first embedding structure 301 on the side of the first conductive part 40 away from the second conductive part 50 and arranging the second embedding structure 901 on the side of the pad 90 of the flexible circuit board 20 adjacent to the first conductive part 40, the electrode trace 30 and the flexible circuit board 20 can be more closely connected. Optionally, the first conductive part 40 can be pressed and combined with the flexible circuit board 20 through conductive glue, and the first embedding structure 301 and the second embedding structure 901 are embedded with each other after high-temperature bonding and pressing. In this way, the first conductive part 40 and the flexible circuit board 20 can be closely connected, and water and oxygen corrosion can also be delayed.

[0065] It should be noted that, Figure 6 An exemplary front view showing the solder pad 90, Figure 7 An exemplary bottom view showing the solder pad 90, Figure 8 An exemplary top view showing the first conductive part 40, Figure 9 An exemplary front view showing the first conductive part 40, without any limitation.

[0066] Optionally, on the basis of the above-mentioned embodiments, continuing to refer to Figures 6 to 10 The first embedding structure 301 comprises a recess, and the second embedding structure 901 comprises a protruding part; or the first embedding structure 301 comprises a protruding part, and the second embedding structure 901 comprises a recess. The shapes of the first embedding structure 301 and the second embedding structure 901 comprise at least one of a "cross" shape, a T shape, a circular shape, a triangular shape, or a polygonal shape. Preferably, the shapes of the first embedding structure 301 and the second embedding structure 901 are the same.

[0067] Specifically, by setting the first embedding structure 301 as a recess and the second embedding structure 901 as a protruding part, or by setting the second embedding structure 901 as a recess and the first embedding structure 301 as a protruding part, the first embedding structure 301 and the second embedding structure 901 can be embedded with each other. The shapes of the first embedding structure 301 and the second embedding structure 901 can be at least one of a "cross" shape, a T shape, a circular shape, a triangular shape, or a polygonal shape. Preferably, when the shapes of the first embedding structure 301 and the second embedding structure 901 are the same, the mutual embedding effect of the two is the best, the combination is the tightest, and a better effect of delaying water and oxygen corrosion can be achieved.

[0068] Optionally, the material of the first conductive part 40 comprises at least one of aluminum, titanium aluminum titanium, molybdenum, or molybdenum aluminum molybdenum, and the material of the second conductive part 50 comprises indium tin oxide.

[0069] Specifically, the first conductive part 40 needs to use a material with good conductive performance, and at least one of aluminum, titanium aluminum titanium, molybdenum, or molybdenum aluminum molybdenum can be selected. The second conductive part 50 needs to use a material that can conduct electricity and resist water and electricity corrosion, and indium tin oxide (ITO) can be used.

[0070] Exemplarily, in combination with Figure 1 , Figure 4 and Figure 10After the light-emitting panel is enabled, the driving signal emitted by the control module is transmitted from the non-light-emitting area 80 to the light-emitting device 10 in the light-emitting area 70 through the electrode trace 30 on the flexible circuit board 20, and the light-emitting device 10 emits light in response to the driving signal. As the light-emitting panel is used for a long time, the first conductive part 40 in the electrode trace 30 is corroded by water and oxygen, and the first conductive part 40 of the electrode trace 30 in the non-light-emitting area 80 is more susceptible to corrosion by water and oxygen. Since the electrode trace 30 contains a plurality of first conductive parts 40 arranged at intervals, even if the first conductive parts 40 on the inner and outer sides of the electrode trace 30 are corroded by water and oxygen, resulting in a decrease in conductivity, it will not affect other first conductive parts 40 arranged at intervals, so that the electrode trace 30 can still maintain good conductivity and continue to transmit the driving signal.

[0071] Optionally, the first embedding structure 301 is arranged on the first conductive part 40, and the second embedding structure 901 is arranged on the pad 90 of the flexible circuit board 20, the first embedding structure 301 and the second embedding structure 901 are embedded with each other, so that the electrode trace 30 and the flexible circuit board 20 are more closely combined. The light-emitting panel provided by the present application reduces the damage of water and oxygen corrosion to the electrode trace, prevents the light-emitting area from being dark due to the corrosion of the electrode trace by water and oxygen, improves the water and oxygen corrosion resistance of the electrode trace, and further improves the display effect of the light-emitting panel.

[0072] Optionally, Figure 11 is a structural schematic diagram of a light-emitting device provided by an embodiment of the present application. Based on the above embodiments, referring to Figure 11 The light-emitting device 200 provided by the embodiment of the present application includes the light-emitting panel 100 in any of the above embodiments. The light-emitting device 200 provided by the embodiment of the present application has the beneficial effects of the light-emitting panel 100 in any of the above embodiments, which will not be described here.

[0073] It should be noted that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A light emitting panel, characterized by The light emitting panel comprises: a light emitting device for emitting light in response to a driving signal; an electrode trace connected with the light emitting device, the electrode trace for transmitting the driving signal to the light emitting device; the electrode trace comprises at least two first conductive parts and at least one second conductive part, the first conductive parts for bonding a flexible circuit board; wherein the water and oxygen permeability of the second conductive part is less than that of the first conductive part; at least two first conductive parts are arranged in a spaced manner; the second conductive part is used to connect the first conductive parts arranged in a spaced manner; Further comprising: a substrate; the second conductive part is arranged on one side of the substrate; the first conductive part is arranged on the side of the second conductive part away from the substrate.

2. The light emitting panel according to claim 1, wherein: the flexible circuit board is arranged on the side of the first conductive part away from the substrate; the conductive capacity of the first conductive part is greater than that of the second conductive part; the orthographic projection of at least one first conductive part on the substrate overlaps with the orthographic projection of the second conductive part on the substrate.

3. The light panel of claim 1, wherein, The light emitting panel comprises a light emitting area and a non-light emitting area; in a first direction, the electrode trace extends from the light emitting area to the non-light emitting area; the first conductive part and the second conductive part are located in the non-light emitting area; the flexible circuit board comprises at least one pad; in the first direction, each pad is bonded to one electrode trace.

4. The light emitting panel according to claim 1, wherein: in a first direction, at least part of the first conductive part is embedded in the second conductive part; in the first direction, the length of the first conductive part ranges from 1 μm to 10 μm.

5. The light emitting panel according to claim 2, wherein: the width of the first conductive part is less than or equal to the width of the second conductive part; the thickness of the first conductive part is greater than or equal to the thickness of the second conductive part.

6. The light emitting panel according to claim 3, wherein: at least one first conductive part comprises a first embedding structure arranged on the side of the first conductive part away from the second conductive part; at least one pad of the flexible circuit board comprises a second embedding structure arranged on the side of the pad adjacent to the first conductive part; when the flexible circuit board is bonded to the electrode trace, the first embedding structure and the second embedding structure are embedded in each other.

7. The light emitting panel according to claim 6, wherein: the first embedding structure comprises a groove, and the second embedding structure comprises a protruding part; or the first embedding structure comprises a protruding part, and the second embedding structure comprises a groove; the shape of the first embedding structure and the second embedding structure comprises at least one of a "cross" shape, a T shape, a circular shape or a polygonal shape; the shape of the first embedding structure and the second embedding structure is the same.

8. The light emitting panel according to claim 1, wherein: the material of the first conductive part comprises at least one of aluminum, titanium aluminum titanium, molybdenum or molybdenum aluminum molybdenum. The material of the second conductive part includes indium tin oxide.

9. A light-emitting device, characterized in that, Comprising: The light emitting panel of any one of claims 1 to 8.

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