CN113219738A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113219738A CN113219738A CN202110423579.2A CN202110423579A CN113219738A CN 113219738 A CN113219738 A CN 113219738A CN 202110423579 A CN202110423579 A CN 202110423579A CN 113219738 A CN113219738 A CN 113219738A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
Abstract
The application discloses display panel and display device, display panel includes: the display device comprises a first substrate and a second substrate, wherein the second substrate is arranged corresponding to the first substrate; frame glue is arranged between the first substrate and the second substrate and arranged in the non-display area; the first substrate comprises a first metal layer and a second metal layer which are arranged corresponding to the non-display area, a first metal wiring group is formed on the first metal layer, and a second metal wiring group is formed on the second metal layer; the first metal wiring groups and the second metal wiring groups are in one-to-one corresponding conducting connection through a group of bridging structures; all the bridging structures are arranged in the direction that the edge of the outer side of the frame glue faces the display area; in the group of bridging structures, the bridging structure closest to the edge of the outer side of the frame glue is the outermost bridging structure, and the distance between the outermost bridging structure and the adjacent bridging structure is at least 20 um; to improve the corrosion resistance of the display panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
The display panel generally includes an array substrate and a color film substrate, the array substrate and the color film substrate are sealed by sealant, and the display panel is formed by sealing the array substrate and the color film substrate.
For example: the array substrate generally adopts the design of a bridging structure to realize the electrode connection between different metal layers, a plurality of bridging structures need to be formed on the array substrate, wherein part of the bridging structures are positioned outside the frame glue and are easily corroded by water vapor, and a part of the bridging structures are positioned below the frame glue.
Disclosure of Invention
The application aims to provide a display panel and a display device, and the corrosion resistance of a bridging structure of a non-display area of the display panel is improved.
The application discloses display panel is divided into display area and non-display area, includes: the display device comprises a first substrate and a second substrate, wherein the second substrate is arranged corresponding to the first substrate; frame glue is arranged between the first substrate and the second substrate and arranged in the non-display area; the first substrate comprises a first metal layer and a second metal layer which are sequentially arranged corresponding to the non-display area, and the first metal layer and the second metal layer are mutually insulated; the first metal layer is provided with a first metal wiring group, and the second metal layer is provided with a second metal wiring group; the first metal wiring group comprises at least one sub-wiring, and the second metal wiring group comprises at least one sub-connecting line; sub-wires of the first metal wire group and sub-connecting wires of the second metal wire group are in one-to-one corresponding conduction connection through a group of bridging structures, and each group of bridging structures at least comprises one bridging structure; one side of the frame glue close to the display area is the inner side of the frame glue, and one side of the frame glue far away from the display area is the outer side of the frame glue; all the bridging structures are arranged in the direction that the edge of the outer side of the frame glue faces the display area; in the group of bridging structures, the bridging structure closest to the edge of the outer side of the frame glue is the outermost bridging structure, and the distance between the outermost bridging structure and the adjacent bridging structure is at least greater than 20 um.
Optionally, the distance between the outermost bridge structure and the adjacent bridge structure is 30-100 um.
Optionally, the distance between the outermost bridge structure and the edge of the outer side of the sealant is 50-300 um.
Optionally, one sub-trace closest to the edge of the outer side of the frame glue is a ground wire or a low-level trace; the distance between the bridging structure connected with the grounding wire and the adjacent bridging structure is larger than 30 um.
Optionally, in one set of the bridge structures, the distance between two adjacent bridge structures is 20-100 um.
Optionally, two adjacent edges of the first substrate extend along a first direction and a second direction respectively, and the first direction and the second direction are perpendicular to each other; the wiring direction of the first metal wiring group is parallel to a first direction, the wiring direction of the second metal wiring group is parallel to a second direction, and the second metal wiring group further comprises at least one branch line;
the set of bridge structures comprises at least one direct connection bridge structure and at least one switching bridge structure; the direct connection bridging structures are arranged on the sub-connecting lines and directly communicated with the sub-wires and the sub-connecting lines, the switching bridging structures are correspondingly arranged on the branch lines one by one, and the switching bridging structures are communicated with the branch lines and the sub-wires; the branch line is connected with the sub-connecting line; the number of the transfer bridge structures is the same as that of the branch lines; the wiring direction of the branch line and the wiring direction of the sub-connecting line are not in the same straight line direction, and the branch line and the sub-connecting line are arranged on the same layer and are mutually communicated; the junction of the branch line and the sub-connecting line is positioned under the frame glue, the distance between the junction and the adjacent bridging structure is less than 20um, and the outermost bridging structure is the switching bridging structure.
Optionally, the branch lines include a first transverse branch line and a first longitudinal branch line which are communicated; the first transverse branch is vertical to the first longitudinal branch; the switching bridging structure is arranged on the first longitudinal branch line and is communicated with the first longitudinal branch line and the sub-connecting lines; the first longitudinal branch line is sequentially connected with the first transverse branch line and the sub-connecting line; the joint of the first transverse branch line and the sub-connecting line is positioned under the frame glue, and the distance between the joint and the adjacent bridging structure is greater than 20 um.
Optionally, the first metal routing group includes n sub-routing lines arranged in parallel, and the second metal routing group includes n sub-connection lines arranged in parallel and two branch lines; among the n sub-wirings, one of the edges closest to the outer side of the frame glue is a first sub-wiring, and the sub-wirings in the sequence from the edge closest to the outer side of the frame glue to the display area are a first sub-wiring, a second sub-wiring and an … … nth sub-wiring in sequence; one of the n sub-connecting lines, which is correspondingly connected with the first sub-trace and the nth sub-trace of the second sub-trace … …, is a first sub-connecting line and a second sub-connecting line … … nth sub-connecting line; the bridging structure connecting the first sub-trace and the first connecting line is a first bridging structure, and sequentially comprises a second bridging structure and an … … nth bridging structure; the first bridging structure and the second bridging structure are the switching bridging structures; the third bridging structure and the fourth bridging structure … … are the direct-connecting bridging structures; correspondingly setting the branch line of the first bridging structure as a first branch line, and correspondingly setting the branch line of the second bridging structure as a second branch line, wherein the first branch line comprises a first transverse branch line and a first longitudinal branch line, the second branch line comprises a second transverse branch line, the first transverse branch line is perpendicular to the first longitudinal branch line, and the first transverse branch line is parallel to the second transverse branch line; the first bridging structure is arranged on the first longitudinal branch line, and the first bridging structure is communicated with the first longitudinal branch line and the first sub-routing; the first longitudinal branch line is sequentially connected with the first transverse branch line and the first sub-connecting line; the second bridging structure is arranged on the second transverse branch line, the second bridging structure is communicated with the second transverse branch line and the second sub-routing line, and the second transverse branch line is connected with the second sub-connecting line; the joint of the first transverse branch line and the first sub-connecting line is positioned under the frame glue, and the distance between the joint of the first transverse branch line and the first sub-connecting line and the adjacent bridging structure is less than 20 um; the junction of the second transverse branch line and the second sub-connecting line is positioned under the frame glue, and the distance between the junction of the second transverse branch line and the second sub-connecting line and the adjacent bridging structure is less than 20 um.
The application also discloses a display panel, is divided into display area and non-display area, includes: the array substrate and the color film substrate are arranged corresponding to the array substrate; frame glue is arranged between the array substrate and the color film substrate and arranged in the non-display area; the array substrate comprises a substrate, a first metal layer, a first insulating layer, a second metal layer, a second insulating layer and a conducting layer, wherein the substrate, the first metal layer, the first insulating layer, the second metal layer, the second insulating layer and the conducting layer are sequentially stacked corresponding to the non-display area; the first metal layer is provided with n sub-routing lines, and the second metal layer is provided with n sub-connecting lines and at least one branch line;
a group of bridging structures are arranged in one-to-one correspondence between the sub-wires and the sub-connecting lines; the conductive layer is connected with the sub-routing lines and the sub-connecting lines through the corresponding bridging structures; the bridging structure is arranged on the sub-route;
among the n sub-wirings, one of the edges closest to the outer side of the frame glue is a first sub-wiring, and the sub-wirings in the sequence from the edge closest to the outer side of the frame glue to the display area are a first sub-wiring, a second sub-wiring and an … … nth sub-wiring in sequence; one of the n sub-connecting lines, which is correspondingly connected with the first sub-trace and the nth sub-trace of the second sub-trace … …, is a first sub-connecting line and a second sub-connecting line … … nth sub-connecting line; the bridging structure connecting the first sub-trace and the first connecting line is a first bridging structure, and sequentially comprises a second bridging structure and an … … nth bridging structure;
the branch lines comprise a first branch line and a second branch line, the first branch line comprises a first transverse branch line and a first longitudinal branch line, the second branch line comprises a second transverse branch line, the first transverse branch line is perpendicular to the first longitudinal branch line, and the first transverse branch line is parallel to the second transverse branch line; the first bridging structure is arranged on the first longitudinal branch line, and the first bridging structure is communicated with the first longitudinal branch line and the first sub-routing; the first longitudinal branch line is sequentially connected with the first transverse branch line and the first sub-connecting line; the second bridging structure is arranged on the second transverse branch line, the second bridging structure is communicated with the second transverse branch line and the second sub-routing line, and the second transverse branch line is connected with the second sub-connecting line;
the joint of the first transverse branch line and the first sub-connecting line is positioned under the frame glue, and the distance between the joint of the first transverse branch line and the first sub-connecting line and the adjacent bridging structure is less than 20 um; the junction of the second transverse branch line and the second sub-connecting line is positioned under the frame glue, and the distance between the junction of the second transverse branch line and the second sub-connecting line and the adjacent bridging structure is less than 20 um; the first bridging structure with the distance between the second bridging structure is greater than 20um, the second bridging structure with the distance between the third bridging structure is greater than 20 um.
Because the bridging structure under the frame glue is different from the completely sealed condition of display area, once the bridging structure corrodes, the bridging structure adjacent to the corroded bridging structure can be corroded more easily than other bridging structures, and the phenomenon after the bridging structure is corroded is resistance enlargement, thereby influencing the transmission of signals, and consider that the bridging structure that is generally the edge closest to the frame glue outside corrodes easily, this application sets up the distance between outermost side bridging structure and adjacent bridging structure more than 20um, make even outermost side bridging structure is corroded, and can not influence other bridging structures, can not make adjacent bridging structure also corroded.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic diagram of a display panel according to an embodiment of the present application;
FIG. 2 is a schematic view of a first substrate according to an embodiment of the present application;
fig. 3 is a schematic diagram of a bridge structure and a sealant position according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating a graph of corrosion degree and time variation when the distance between the outermost bridge structure and the edge of the outer side of the sealant is different according to another embodiment of the present disclosure;
fig. 5 is a schematic diagram of a bridge structure and a sealant position according to another embodiment of the present application;
FIG. 6 is a schematic illustration of a graph of erosion versus time for different distances between an outermost bridge structure and an adjacent bridge structure according to another embodiment of the present application;
fig. 7 is a schematic diagram of a bridge structure and a sealant position according to another embodiment of the present application;
fig. 8 is a schematic diagram of a bridge structure and a sealant position according to another embodiment of the present application;
fig. 9 is a schematic diagram of a display device according to another embodiment of the present application.
Wherein, 1, a display device; 10. a display panel; 11. a display area; 12. a non-display area; 21. a first direction; 22. a second direction; 30. a backlight module; 100. a first substrate; 101. an array substrate; 110. a first metal layer; 111. a first metal wiring group; 112. sub-routing; 120. a second metal layer; 121. a second metal wiring group; 122. a sub-connection line; 123. a branch line; 1231. a first lateral leg; 1232. a first longitudinal branch; 124. a first branch line; 125. a second branch line; 1251. a second lateral leg; 130. a bridging structure; 131. an outermost bridge structure; 140. a conductive layer; 150. a first insulating layer; 160. a second insulating layer; 170. a substrate; 200. a second substrate; 201. a color film substrate; 300. frame glue; 301. the outer side of the frame glue; 302. the inner side of the frame glue; 304. a straight line region; 305. a corner area.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application is described in detail below with reference to the figures and alternative embodiments.
As disclosed in fig. 1, the display panel 10 includes a first substrate 100 and a second substrate 200 arranged in a pair, the first substrate 100 is divided into a display region 11 and a non-display region 12, a sealant 300 is disposed between the first substrate 100 and the second substrate 200, and the sealant 300 is disposed in the non-display region 12.
As fig. 2 discloses a schematic view of the first substrate 100, the array substrate 101 includes a substrate 170, a first metal layer 110, a first insulating layer 150, a second metal layer 120, a second insulating layer 160, and a conductive layer 140, which are sequentially stacked corresponding to the non-display region 12; specifically, the first metal routing group 111 and the second metal routing group 121 are respectively conducted through the bridging structure 130 and the conductive layer 140, the first substrate 100 includes a first metal layer 110 and a second metal layer 120 disposed corresponding to the non-display region 12, and the first metal layer 110 and the second metal layer 120 are insulated from each other; the first metal layer 110 is formed with a first metal routing group 111, and the second metal layer 120 is formed with a second metal routing group 121; the first metal wiring group 111 and the second metal wiring group 121 are in one-to-one corresponding conductive connection through a group of bridging structures 130; wherein the first metal layer 110 and the second metal layer 120 in the present application belong to the same layer as the first metal layer 110 and the second metal layer 120 in the display area 11 of the display panel 10; in the present application, the first substrate 100 is an array substrate 101, and the second substrate 200 is a color filter substrate 201. It should be noted that, in the present application, the first metal routing group 111, i.e. the sub-routing 112, is a peripheral routing of the non-display region 12 and provides a driving signal voltage (e.g. VGH, VGL, CLK, VCOM, etc.) for the display panel 10, and the second metal routing group 121, i.e. the sub-connecting line 122, is an electrostatic discharge (ESD) routing, and switches and conducts the Static electricity of the peripheral routing of the non-display region 12 to the outside of the display panel 10 through the bridging structure 130, so as to prevent the peripheral routing of the non-display region 12 from failing due to ESD.
As shown in fig. 3, a schematic diagram of positions of the bridging structure 130 and the sealant 300 is shown, where a side of the sealant 300 close to the display region 11 is a sealant inner side 302, and a side of the sealant 300 away from the display region 11 is a sealant outer side 301; all the bridging structures 130 are disposed at the edge of the outer side 301 of the sealant toward the display region 11; in one group of the bridge structures 130, the bridge structure 130 closest to the edge of the outer side 301 of the sealant is an outermost bridge structure 131, and a distance between the outermost bridge structure 131 and the adjacent bridge structure 130 is at least greater than 20 um.
Since the bridging structure 130 under the sealant 300 is different from the completely sealed condition of the display region 11, once the bridging structure 130 is corroded, the bridging structure 130 adjacent to the corroded bridging structure 130 is more easily corroded than other bridging structures 130, and the phenomenon after the bridging structure 130 is corroded is that the resistance is increased, thereby affecting the signal transmission, and considering that the bridging structure 130 which is generally closest to the edge of the outer side 301 of the sealant is easily corroded, the distance between the outermost bridging structure 131 and the adjacent bridging structure 130 is set to be more than 20um, so that even if the outermost bridging structure 131 is corroded, the other bridging structure 130 is not affected, and the adjacent bridging structure 130 is not corroded.
For example, fig. 4 shows a graph with time on the abscissa and resistance of the bridging structure 130 on the ordinate in the case of different distances between adjacent bridging structures 130, and the corrosion test conditions are as follows: under the conditions that the temperature is 85 ℃ and the humidity is 85%, as seen from a curve in the figure, the closer the distance between two bridging structures 130 is, after one bridging structure 130 is corroded, the greater the resistance of the adjacent bridging structure 130 becomes within a certain time, which indicates that the adjacent bridging structure 130 is corroded, that is, after one bridging structure 130 is corroded, the resistance is easy to continuously deteriorate along the direction of the metal routing, and the adjacent bridging structure 130 is damaged and corroded; correspondingly, when the adjacent distance is 20um or more, after one bridging structure 130 is corroded, the resistance change of the adjacent bridging structure 130 is small, which means that the adjacent bridging structure 130 is not easily influenced by corrosion under the condition that the adjacent bridging structure 130 is 20um away. The data corresponding to the horizontal and vertical coordinates can be known from the following table one:
watch 1
As can be seen from the table, when L is 0um, the resistance of the adjacent bridge structure 130 changes from 1.2 Ω to 4.3 Ω during 0 hour to 30 hours, and suddenly changes from 4.3 Ω to 32 Ω during 30 hours to 60 hours, and it is known that the resistance of the adjacent bridge structure 130 has doubled by 16 times in the second 30 hours, and the resistance of the adjacent bridge structure 130 has reached 71 ohms during 60 hours to 80 hours, so that the resistance of the adjacent bridge structure 130 has increased to 5.3K Ω at 500 hours, which indicates that the resistance of the adjacent bridge structure 130 has changed greatly, and the adjacent bridge structure 130 is completely corroded at 500 hours. Similarly, when L is 5um or 10um, the resistance of the adjacent bridge structure 130 reaches 1 kiloohm or more in 520 hours, which indicates that the resistance change of the adjacent bridge structure 130 is large, and when L is small, the adjacent bridge structure 130 is easily corroded.
Taking L ═ 15um as an example, the resistance value of the adjacent bridge structures 130 only rises from 1.5 ohms to 75 ohms during 0 hours to 500 hours, so that the 500 hours of experimental data can be converted to a service life of at least 5 years in the case of converting the experimental conditions to the temperature and humidity of the normal environment. Quality guarantee for 5 years can be realized, the distance from the edge of the outer side 301 of the frame glue is closer, the internal wiring space is enlarged, the external space is narrower, and the display panel is suitable for the display panel 10 with a narrow frame.
However, in the course of 500 hours to 1000 hours, the resistance value of the adjacent bridge structure 130 rises from 75 ohms to 1.51K Ω, which indicates that the resistance change of the outermost bridge structure 131 is large, and it can be seen that, in the case of L ═ 15um, the adjacent bridge structure 130 is still at a certain risk of being corroded, and although the corrosion risk can be resisted within a certain time, the corrosion risk value cannot be extremely low, and in a sufficiently long time, the resistance of the adjacent bridge structure 130 still rises to a large value.
Taking L ═ 20um as an example, the resistance value of the adjacent bridge structure 130 only rises from 1.2 ohm to 8.6 ohm during 0 hours to 500 hours, and the resistance value of the adjacent bridge structure 130 rises from 8.6 ohm to 199 Ω during 500 hours to 1000 hours, so it can be seen that the change of the slope value of the curve is small in the change curve of 1 hour to 1000 hours, which means that the resistance change of the adjacent bridge structure 130 is small, further, it is described that in the case of L ═ 20um, the risk of corrosion of the adjacent bridge structure 130 is extremely small, and the resistance value of the adjacent bridge structure 130 does not rise to a high degree even in a sufficiently long time, and has an effect of preventing corrosion of the adjacent bridge structure 130.
Taking the above table as reference, in the case where L is 30um, the resistance value of the outermost bridge structure 131 changes from 1.5 ohm to 1.3 ohm only in the course of 0 hour to 1000 hours in the experiment, and almost no change occurs, which indicates that in the case where L is greater than or equal to 30um, the outermost bridge structure 131 is not corroded substantially, and thus the service life of the display panel 10 that needs to be exposed to a high humidity and a high temperature is greatly ensured.
From experimental data, the larger the value of L is, that is, the farther the outermost bridge structure 131 is from the adjacent bridge structure 130, that is, the farther the distance between two adjacent bridge structures 130 is, the corrosion prevention capability is significantly improved, but because the width of the sealant 300 and the routing space inside the display area 11 are small, the maximum value of the distance between the adjacent bridge structures 130 is 100um, the narrow-bezel display panel 10 can be realized within the range of 100um, and the inside can meet the condition of the space required for routing, therefore, the distance between the outermost bridge structure 131 and the outer side 301 edge of the sealant in the present application is 30-100um, and the display panel 10 under the conditions of high humidity and high temperature has the better corrosion prevention capability, can be used for a long time, and has the ultra-long service life.
In order to satisfy the requirement that the distance between the outermost bridging structure 131 and the adjacent bridging structure 130 reaches more than 20um, as shown in fig. 5, the present application discloses a first substrate 100, two adjacent edges of the first substrate extend along a first direction and a second direction respectively, and the first direction and the second direction are perpendicular to each other; corresponding to fig. 5, that is, the first substrate 100 has two transversely disposed sides in a first direction 21, and two vertically disposed sides in a second direction 22, where the first direction 21 is perpendicular to the second direction 22; the routing direction of the first metal routing group 111 is parallel to the first direction 21, the routing direction of the second metal routing group 121 is parallel to the second direction 22, the first metal routing group 111 includes a plurality of sub-routing lines 112 arranged in parallel, and the second metal routing group 121 includes a plurality of sub-connecting lines 122 arranged in parallel and at least one branch line 123;
the set of bridge structures 130 includes at least one directly connected bridge structure 130 and at least one transit bridge structure 130; the direct-connection bridging structures 130 are disposed on the sub-connection lines 122, the direct-connection bridging structures 130 directly connect the sub-traces 112 and the sub-connection lines 122, the switching bridging structures 130 are disposed on the branch lines 123 in a one-to-one correspondence, and the switching bridging structures 130 connect the branch lines 123 and the sub-traces 112; the branch line 123 is connected with the sub-connecting line 122; the number of the transit bridge structures 130 is the same as that of the branch lines 123; the routing direction of the branch line 123 and the routing direction of the sub-connection line 122 are not in the same straight line direction, and the branch line 123 and the sub-connection line 122 are arranged in the same layer and are mutually conducted; the junction of the branch line 123 and the sub-connection line 122 is located under the sealant 300, the distance between the junction and the adjacent bridging structure 130 is less than 20um, and the outermost bridging structure 131 is the transferring bridging structure 130.
This application is through adopting the mode of broken line for the contact of the outermost side reaches 20um with adjacent bridging structure 130's distance, thereby even under the circumstances that outermost side bridging structure 131 is corroded, the anticorrosive performance of assurance display panel 10 that can be better.
As shown in fig. 6, a schematic diagram of a branch line 123, the branch line 123 comprising a first transverse branch line 1231 and a first longitudinal branch line 1232 in communication; the first lateral branch 1231 is perpendicular to the first longitudinal branch 1232; the adapting bridge structure 130 is disposed on the first longitudinal branch 1232, and the adapting bridge structure 130 communicates the first longitudinal branch 1232 and the sub-connecting line 122; the first longitudinal branch 1232 is sequentially connected to the first transverse branch 1231 and the sub-connecting line 122; the junction of the first transverse branch line 1231 and the sub-connecting line 122 is located under the sealant 300, and the distance between the junction and the adjacent bridging structure 130 is greater than 20 um.
As shown in fig. 7, another schematic diagram of the branch line 123, the first metal routing group 111 includes n sub-routing lines 112 arranged in parallel, and the second metal routing group 121 includes n sub-connection lines 122 arranged in parallel and two branch lines 123; among the n sub-traces 112, one of the sub-traces 112 closest to the edge of the frame adhesive outer side 301 is a first sub-trace 112, and the sub-traces 112 closest to the edge of the frame adhesive outer side 301 in the order toward the display region 11 are sequentially a first sub-trace, a second sub-trace, and an … … nth sub-trace; one of the n sub-connecting lines, which is correspondingly connected with the first sub-trace and the nth sub-trace of the second sub-trace … …, is a first sub-connecting line and a second sub-connecting line … … nth sub-connecting line; the bridging structure connecting the first sub-trace and the first sub-connecting line is a first bridging structure, and sequentially comprises a second bridging structure and an … … nth bridging structure; the first bridging structure 130 and the second bridging structure 130 are the transit bridging structure 130; the third bridging structure 130, the fourth bridging structure 130 … …, the nth bridging structure 130 are the direct bridging structures 130;
correspondingly setting the branch 123 of the first bridging structure 130 as a first branch 124, and correspondingly setting the branch 123 of the second bridging structure 130 as a second branch 125, where the first branch 124 includes a first transverse branch 1231 and a first longitudinal branch 1232, the second branch 125 includes a second transverse branch 1251, the first transverse branch 1231 is perpendicular to the first longitudinal branch 1232, and the first transverse branch 1231 is parallel to the second transverse branch 1251; the first bridging structure 130 is disposed on the first longitudinal branch 1232, and the first bridging structure 130 connects the first longitudinal branch 1232 and the first sub-trace 112; the first longitudinal branch 1232 is sequentially connected to the first transverse branch 1231 and the first sub-connecting line 122; the second bridging structure 130 is disposed on the second lateral branch 1251, the second bridging structure 130 connects the second lateral branch 1251 and the second sub-trace 112, and the second lateral branch 1251 connects the second sub-connecting line 122; the junction of the first transverse branch 1231 and the first sub-connecting line 122 is located under the sealant 300, and the distance between the junction of the first transverse branch 1231 and the first sub-connecting line 122 and the adjacent bridging structure 130 is less than 20 um; the junction of the second transverse branch 1251 and the second sub-connecting line 122 is located under the sealant 300, and the distance between the junction of the second transverse branch 1251 and the second sub-connecting line 122 and the adjacent bridging structure 130 is less than 20 um.
Specifically, the present application may further adopt a plurality of branch lines 123, and respectively move the bridging structures 130 to different positions, so that the distance between every two adjacent bridging structures 130 is 20-100 um.
As disclosed in fig. 7, the display panel 10 includes a first substrate 100 and a second substrate 200 arranged in a pair of cells, the first substrate 100 is divided into a display region 11 and a non-display region 12, and the non-display region 12 of the first substrate 100 includes a substrate 170, a first metal layer 110, a first insulating layer 150, a second metal layer 120, a second insulating layer 160, a transition layer, a protective layer, and a sealant 300, which are stacked at one time.
The first metal layer 110 is formed with a first metal routing group 111, and the second metal layer 120 is formed with a second metal routing group 121; the first metal wiring group 111 and the second metal wiring group 121 are in one-to-one corresponding conductive connection through a group of bridging structures 130;
one side of the sealant 300 close to the display region 11 is a sealant inner side 302, and one side of the sealant 300 far away from the display region 11 is a sealant outer side 301; all the bridging structures 130 are located in the region extending from the outer side 301 of the sealant to the display region 11;
the nearest bridge structure 131 to the outer side 301 of the sealant in the group of bridge structures 130 is the outermost bridge structure 131, and the distance between two adjacent bridge structures 130 is at least greater than 20 um; the distance between the outermost side bridging structure 131 and the edge of the outer side 301 of the frame glue is 50-300 um.
Specifically, as shown in fig. 8, a graph of the corrosion degree and time change is shown when the distance between the outermost bridge structure 131 and the edge of the outer side 301 of the sealant is different, where w in the graph is the length of the outermost bridge structure 131 from the edge of the outer side 301 of the sealant, the abscissa in the graph is the reliability time (unit is hour), and the ordinate in the graph is the resistance value of the outermost bridge structure 131, since the phenomenon after the bridge structure 130 is corroded is that the resistance value becomes large, the ordinate in the graph is the resistance value of the outermost bridge structure 131 to represent the corrosion degree, and the table two corresponds to the value of each point of the curve in fig. 8 to represent the specific value of the abscissa, and the experimental conditions in fig. 8 and table two are as follows: under a dependable environment of 85 ℃ and 85% humidity; table II is as follows: it should be noted that other variables, such as the aperture size, are controlled as default apertures in this application, so that the distance W in this experiment is a single variable.
Watch two
According to the experimental data, the larger the value of w is, the farther the outermost bridging structure 131 is from the edge of the outer side 301 of the sealant, that is, the closer the outermost bridging structure 131 is to the display area 11, the corrosion resistance is remarkably improved, and in the present application, the bridging structure 130 of the non-display area 12 is moved into the sealant 300 and is at least 50um away from the edge of the outer side 301 of the sealant, so that the water vapor is prevented from being corroded from the edge of the sealant 300 to the bridging structure 130, and therefore, not only can the manufacturing process of the protective layer be saved, but also the bridging structure 130 can be protected from being corroded by the water vapor outside; however, since the wiring space of the display panel 10 is limited, the value of w cannot be infinite, and generally, in the range of the width of the sealant 300 from 500um to 1500um, when the value of w is less than 300um, the internal wiring space can be satisfied, so that the wiring space of the display region 11 and the region of the edge of the inner side 302 of the sealant facing the display region 11 is not compressed. For example, for a narrow-frame display panel 10 with a width of the sealant 300 of 200um to 500um, when the value of w is less than 200um, the other bridging structures 130 can be ensured to have a certain space for arrangement.
The application also discloses another display panel 10, the display panel 10 includes a first substrate 100 and a second substrate 200 which are arranged to each other, the first substrate 100 is divided into a display area 11 and a non-display area 12, and the non-display area 12 of the first substrate 100 includes a substrate 170, a first metal layer 110, a first insulating layer 150, a second metal layer 120, a second insulating layer 160, a switching layer, a protective layer and a sealant 300 which are stacked at one time. The first metal layer 110 is formed with a first metal routing group 111, and the second metal layer 120 is formed with a second metal routing group 121; the first metal wiring group 111 and the second metal wiring group 121 are in one-to-one corresponding conductive connection through a group of bridging structures 130; one side of the sealant 300 close to the display region 11 is a sealant inner side 302, and one side of the sealant 300 far away from the display region 11 is a sealant outer side 301; all the bridging structures 130 are located in the region extending from the outer side 301 of the sealant to the display region 11; the distance between the two adjacent bridging structures 130 is at least greater than 30 um; one sub-trace 112 closest to the edge of the outer side 301 of the sealant is a ground trace or a low-level trace.
The outermost signal line of following is walked the line for earth connection or low level, can not influence other signal lines when the worst case corrodes and takes place yet to safe distance 30um, when the technology fluctuation leads to corroding to take place like this, also can guarantee not to influence other signal lines, promotes the corrosion protection ability of product.
The present application further discloses a specific implementation manner, disclosing a display device 1, the display device 1 includes a display panel 10 and a backlight module 30, the display panel 10 is divided into a display area 11 and a non-display area 12, including: the array substrate 101 is a color film substrate 201 arranged corresponding to the array substrate 101; a sealant 300 is arranged between the array substrate 101 and the color film substrate 201, and the sealant 300 is arranged in the non-display area 12; the array substrate 101 comprises a substrate 170, a first metal layer 110, a first insulating layer 150, a second metal layer 120, a second insulating layer 160 and a conducting layer 140, which are sequentially stacked corresponding to the non-display area 12; the first metal layer 110 is formed with n sub-traces 112, and the second metal layer 120 is formed with n sub-connection lines 122 and at least one branch line 123;
a set of bridging structures 130 is disposed in the sub-traces 112 and the sub-connecting lines 122 in a one-to-one correspondence; the conductive layer 140 connects the sub-traces 112 and the sub-connection lines 122 through the corresponding bridging structures 130; the bridging structure 130 is disposed on the sub-trace 112;
among the n sub-traces 112, one of the sub-traces 112 closest to the edge of the frame adhesive outer side 301 is a first sub-trace 112, and the sub-traces 112 closest to the edge of the frame adhesive outer side 301 in the order toward the display region 11 are sequentially a first sub-trace, a second sub-trace, and an … … nth sub-trace; one of the n sub-connecting lines, which is correspondingly connected with the first sub-trace and the nth sub-trace of the second sub-trace … …, is a first sub-connecting line and a second sub-connecting line … … nth sub-connecting line; the bridging structure connecting the first sub-trace and the first sub-connecting line is a first bridging structure, and sequentially comprises a second bridging structure and an … … nth bridging structure;
the branch 123 comprises a first branch 124 and a second branch 125, the first branch 124 comprises a first transverse branch 1231 and a first longitudinal branch 1232, the second branch 125 comprises a second transverse branch 1251, the first transverse branch 1231 is perpendicular to the first longitudinal branch 1232, the first transverse branch 1231 is parallel to the second transverse branch 1251; the first bridging structure 130 is disposed on the first longitudinal branch 1232, and the first bridging structure 130 connects the first longitudinal branch 1232 and the first sub-trace 112; the first longitudinal branch 1232 is sequentially connected to the first transverse branch 1231 and the first sub-connecting line 122; the second bridging structure 130 is disposed on the second lateral branch 1251, the second bridging structure 130 connects the second lateral branch 1251 and the second sub-trace 112, and the second lateral branch 1251 connects the second sub-connecting line 122;
the junction of the first transverse branch 1231 and the first sub-connecting line 122 is located under the sealant 300, and the distance between the junction of the first transverse branch 1231 and the first sub-connecting line 122 and the adjacent bridging structure 130 is less than 20 um; the junction of the second transverse branch 1251 and the second sub-connecting line 122 is located under the sealant 300, and the distance between the junction of the second transverse branch 1251 and the second sub-connecting line 122 and the adjacent bridging structure 130 is less than 20 um; the distance between the first bridging structure 130 and the second bridging structure 130 is greater than 20um, and the distance between the second bridging structure 130 and the third bridging structure 130 is greater than 20 um.
The technical solution of the present application can be widely applied to various display panels, such as a TN (twisted Nematic) display panel, an IPS (In-Plane switching) display panel, a VA (Vertical Alignment) display panel, and an MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as an OLED (Organic Light-Emitting Diode) display panel, can also be applied to the above solution.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A display panel divided into a display area and a non-display area, comprising:
a first substrate;
the second substrate is arranged corresponding to the first substrate; and
the frame glue is arranged between the first substrate and the second substrate and arranged in the non-display area;
the first substrate comprises a first metal layer and a second metal layer which are sequentially arranged corresponding to the non-display area, and the first metal layer and the second metal layer are mutually insulated;
the first metal layer is provided with a first metal wiring group, and the second metal layer is provided with a second metal wiring group; the first metal wiring group comprises at least one sub-wiring, and the second metal wiring group comprises at least one sub-connecting line; sub-wires of the first metal wire group and sub-connecting wires of the second metal wire group are in one-to-one corresponding conduction connection through a group of bridging structures, and each group of bridging structures at least comprises one bridging structure;
one side of the frame glue close to the display area is the inner side of the frame glue, and one side of the frame glue far away from the display area is the outer side of the frame glue;
all the bridging structures are arranged in the direction that the edge of the outer side of the frame glue faces the display area;
in the group of bridging structures, the bridging structure closest to the edge of the outer side of the frame glue is the outermost bridging structure;
the distance between the outermost side bridging structure and the adjacent bridging structure is at least 20 um.
2. The display panel of claim 1, wherein the distance between the outermost bridge structure and the adjacent bridge structure is 30-100 um.
3. The display panel of claim 1, wherein a distance between the outermost bridge structure and an edge of the outer side of the sealant is 50-300 um.
4. The display panel according to claim 1, wherein one of the sub-traces closest to the edge of the outer side of the sealant is a ground line or a low-level trace; the distance between the bridging structure connected with the grounding wire and the adjacent bridging structure is larger than 30 um.
5. The display panel according to claim 1, wherein a distance between two adjacent bridge structures in one set of the bridge structures is 20-100 um.
6. The display panel according to claim 1, wherein two adjacent edges of the first substrate extend in a first direction and a second direction, respectively, the first direction and the second direction being perpendicular to each other;
the wiring direction of the first metal wiring group is parallel to a first direction, and the wiring direction of the second metal wiring group is parallel to a second direction;
the second metal wiring group also comprises at least one branch line;
the bridge structure comprises at least one direct connection bridge structure and at least one switching bridge structure;
the direct-connection bridging structure is arranged on the sub-connecting line and directly communicates the sub-routing with the sub-connecting line;
the switching bridge structures are arranged on the branch lines in a one-to-one correspondence mode, and the switching bridge structures are communicated with the branch lines and the sub-routing lines; the branch line is connected with the sub-connecting line; the number of the transfer bridge structures is the same as that of the branch lines;
the wiring direction of the branch line and the wiring direction of the sub-connecting line are not in the same straight line direction, and the branch line and the sub-connecting line are arranged on the same layer and are mutually communicated;
the junction of the branch line and the sub-connecting line is positioned under the frame glue, and the distance between the junction and the adjacent bridging structure is less than 20 um;
the outermost side bridging structure is the transfer bridging structure.
7. The display panel of claim 6, wherein the branch lines comprise a first transverse branch line and a first longitudinal branch line in communication; the first transverse branch is vertical to the first longitudinal branch;
the switching bridging structure is arranged on the first longitudinal branch line and is communicated with the first longitudinal branch line and the sub-connecting lines; the first longitudinal branch line is sequentially connected with the first transverse branch line and the sub-connecting line;
the joint of the first transverse branch line and the sub-connecting line is positioned under the frame glue, and the distance between the joint and the adjacent bridging structure is greater than 20 um.
8. The display panel according to claim 6, wherein the first metal routing group includes n sub-routing lines arranged in parallel, and the second metal routing group includes n sub-connection lines arranged in parallel and two branch lines;
among the n sub-wirings, one of the edges closest to the outer side of the frame glue is a first sub-wiring, and the sub-wirings in the sequence from the edge closest to the outer side of the frame glue to the display area are a first sub-wiring, a second sub-wiring and an … … nth sub-wiring in sequence;
one of the n sub-connecting lines, which is correspondingly connected with the first sub-trace and the nth sub-trace of the second sub-trace … …, is a first sub-connecting line and a second sub-connecting line … … nth sub-connecting line;
the bridging structure connecting the first sub-trace and the first connecting line is a first bridging structure, and sequentially comprises a second bridging structure and an … … nth bridging structure; the first bridging structure and the second bridging structure are the switching bridging structures; the third bridging structure and the fourth bridging structure … … are the direct-connecting bridging structures;
correspondingly setting the branch line of the first bridging structure as a first branch line, and correspondingly setting the branch line of the second bridging structure as a second branch line, wherein the first branch line comprises a first transverse branch line and a first longitudinal branch line, the second branch line comprises a second transverse branch line, the first transverse branch line is perpendicular to the first longitudinal branch line, and the first transverse branch line is parallel to the second transverse branch line;
the first bridging structure is arranged on the first longitudinal branch line, and the first bridging structure is communicated with the first longitudinal branch line and the first sub-routing; the first longitudinal branch line is sequentially connected with the first transverse branch line and the first sub-connecting line;
the second bridging structure is arranged on the second transverse branch line, the second bridging structure is communicated with the second transverse branch line and the second sub-routing line, and the second transverse branch line is connected with the second sub-connecting line;
the joint of the first transverse branch line and the first sub-connecting line is positioned under the frame glue, and the distance between the joint of the first transverse branch line and the first sub-connecting line and the adjacent bridging structure is less than 20 um;
the junction of the second transverse branch line and the second sub-connecting line is positioned under the frame glue, and the distance between the junction of the second transverse branch line and the second sub-connecting line and the adjacent bridging structure is less than 20 um.
9. A display panel divided into a display area and a non-display area, comprising:
an array substrate;
the color film substrate is arranged corresponding to the array substrate;
frame glue is arranged between the array substrate and the color film substrate and arranged in the non-display area;
the array substrate comprises a substrate, a first metal layer, a first insulating layer, a second metal layer, a second insulating layer and a conducting layer, wherein the substrate, the first metal layer, the first insulating layer, the second metal layer, the second insulating layer and the conducting layer are sequentially stacked corresponding to the non-display area;
the first metal layer is provided with n sub-routing lines, and the second metal layer is provided with n sub-connecting lines and at least one branch line;
a group of bridging structures are arranged in one-to-one correspondence between the sub-wires and the sub-connecting lines; the conductive layer is connected with the sub-routing lines and the sub-connecting lines through the corresponding bridging structures;
the bridging structure is arranged on the sub-route;
among the n sub-wirings, one of the edges closest to the outer side of the frame glue is a first sub-wiring, and the sub-wirings in the sequence from the edge closest to the outer side of the frame glue to the display area are a first sub-wiring, a second sub-wiring and an … … nth sub-wiring in sequence;
one of the n sub-connecting lines, which is correspondingly connected with the first sub-trace and the nth sub-trace of the second sub-trace … …, is a first sub-connecting line and a second sub-connecting line … … nth sub-connecting line;
the bridging structure connecting the first sub-trace and the first connecting line is a first bridging structure, and sequentially comprises a second bridging structure and an … … nth bridging structure;
the branch lines comprise a first branch line and a second branch line;
the first branch line comprises a first transverse branch line and a first longitudinal branch line, the second branch line comprises a second transverse branch line, the first transverse branch line is perpendicular to the first longitudinal branch line, and the first transverse branch line is parallel to the second transverse branch line;
the first bridging structure is arranged on the first longitudinal branch line, and the first bridging structure is communicated with the first longitudinal branch line and the first sub-routing; the first longitudinal branch line is sequentially connected with the first transverse branch line and the first sub-connecting line;
the second bridging structure is arranged on the second transverse branch line, the second bridging structure is communicated with the second transverse branch line and the second sub-routing line, and the second transverse branch line is connected with the second sub-connecting line;
the joint of the first transverse branch line and the first sub-connecting line is positioned under the frame glue, and the distance between the joint of the first transverse branch line and the first sub-connecting line and the adjacent bridging structure is less than 20 um;
the junction of the second transverse branch line and the second sub-connecting line is positioned under the frame glue, and the distance between the junction of the second transverse branch line and the second sub-connecting line and the adjacent bridging structure is less than 20 um;
the first bridging structure with the distance between the second bridging structure is greater than 20um, the second bridging structure with the distance between the third bridging structure is greater than 20 um.
10. A display device, comprising the display panel of any one of claims 1 to 9, and a backlight module for providing a light source for the display panel.
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