Display device

Abstract

A display device is disclosed. The display device includes: a display panel including a touch area and a peripheral area surrounding the touch area; the peripheral area comprises a binding area located on one side of the touch area in the first direction and a fan-out area located between the binding area and the touch area; the touch conducting layer is located on the display side of the display panel and comprises a plurality of fan-out lines extending from the fan-out area to the binding area; the plurality of fan-out lines include: a ground level signal line; the first protection layer is at least located on the side, away from the display panel, of the fan-out lines in the fan-out area; the orthographic projection of the first protection layer on the display panel is overlapped with the orthographic projection of the plurality of fan-out lines in the fan-out area on the display panel; the first conductive layer is located on the side, away from the display panel, of the first protective layer at least in the fan-out area; the first conductive layer is electrically connected with the ground level signal line.

Description

Display device TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular, to a display device. BACKGROUND

[0002] In the prior art, one touch control scheme is to set a touch conductive layer above a color film substrate. However, the output and reception of the excitation signal of the touch electrode are completed by the same electrode when the touch conductive layer is set above the color film substrate, and a large number of touch signal lines need to be set. For narrow frame products, the wiring space of the fan-out area is limited, resulting in a small spacing between the touch signal lines in the fan-out area, and there is a risk of static shock.

[0003] SUMMARY

[0004] The display device provided by the embodiments of the present disclosure comprises:

[0005] The display panel comprises a touch area and a peripheral area surrounding the touch area; the peripheral area comprises a binding area located on one side of the touch area in a first direction, and a fan-out area located between the binding area and the touch area;

[0006] The touch conductive layer is located on the display side of the display panel and comprises a plurality of fan-out lines extending from the fan-out area to the binding area; the plurality of fan-out lines comprises a ground level signal line;

[0007] The first protective layer is located on at least one side of the plurality of fan-out lines away from the display panel in the fan-out area; the orthographic projection of the first protective layer on the display panel and the orthographic projection of the plurality of fan-out lines on the display panel in the fan-out area have an overlap;

[0008] The first conductive layer is located on at least one side of the first protective layer away from the display panel in the fan-out area; the first conductive layer is electrically connected with the ground level signal line.

[0009] In some embodiments, the first conductive layer comprises a first part;

[0010] The orthographic projection of the first part on the display panel falls within the orthographic projection of the first protective layer on the display panel;

[0011] The first part is electrically connected with the ground level signal line through a via hole penetrating through the first protective layer; or,

[0012] The first conductive layer further comprises a second part electrically connected with the first part; the second part is located on the side of the first part facing the binding area, and the second part is overlapped with the ground level signal line through the side surface of the first protective layer.

[0013] In some embodiments, the first part has an opening; the orthographic projection of the opening on the display panel overlaps with the orthographic projection of the fan-out line on the display panel.

[0014] In some embodiments, the first portion and the first protective layer each have an edge parallel to the second direction, and a distance between the edge parallel to the second direction of the first portion and the edge parallel to the second direction of the first protective layer adjacent to the first portion is greater than 0; the second direction intersects the first direction.

[0015] In some embodiments, in the second direction, a width of the first portion is equal to a width of the first protective layer.

[0016] In some embodiments, the display device further comprises:

[0017] The first cover layer is located on a side of the first conductive layer facing away from the display panel in the first peripheral region; a projection of the first cover layer on the display panel is at least located in the fan-out region.

[0018] In some embodiments, a material of the first cover layer comprises ultraviolet curing glue.

[0019] In some embodiments, the touch conductive layer further comprises:

[0020] The plurality of binding electrodes are located in the binding region; the binding electrodes are electrically connected to the fan-out lines;

[0021] The display device further comprises:

[0022] The first flexible circuit board is bound to the binding electrodes;

[0023] The first adhesive tape is located on a side of the first flexible circuit board facing away from the binding electrodes; the first adhesive tape comprises a second conductive layer; the second conductive layer is in contact with the first conductive layer.

[0024] In some embodiments, the first adhesive tape further comprises: a first insulating layer located on a side of the second conductive layer facing away from the first flexible circuit board;

[0025] The display device comprises the first cover layer, and a partial region of the first cover layer is located on a side of the first insulating layer facing away from the display panel.

[0026] In some embodiments, the first adhesive tape further comprises: a second insulating layer located between the second conductive layer and the first flexible circuit board; the second insulating layer comprises at least one removal region;

[0027] The display device further comprises:

[0028] The at least one conductive adhesive is located between the at least partially flat signal line and the second conductive layer in the removal region.

[0029] In some embodiments, a projection of the conductive adhesive on the display panel does not overlap with a projection of the first protective layer on the display panel, and the projection of the conductive adhesive on the display panel is located on a side of the projection of the first protective layer on the display panel facing the binding region.

[0030] The conductive glue does not overlap the rest of the fan-out lines except the ground level signal lines in the orthographic projection of the display panel, and the conductive glue does not overlap the binding electrodes in the orthographic projection of the display panel.

[0031] In some embodiments, the display device includes a plurality of ground level signal lines in the fan-out area, the plurality of ground level signal lines includes: a first ground level signal line, a second ground level signal line, and at least one third ground level signal line;

[0032] The plurality of binding electrodes are divided into a plurality of binding electrode groups arranged along the second direction, and no binding electrode is included between adjacent two binding electrode groups; the third ground level signal line is electrically connected to adjacent two binding electrode groups;

[0033] The at least one conductive glue includes: a first conductive glue in contact with the first ground level signal line, a second conductive glue in contact with the second ground level signal line, and a third conductive glue in contact with the third ground level signal line.

[0034] In some embodiments, the ground level signal line includes: a first sub-signal line intersecting the first direction along the extension direction, the first protective layer does not overlap the first sub-signal line in the orthographic projection of the display panel, and the conductive glue overlaps the first sub-signal line in the orthographic projection of the display panel.

[0035] In some embodiments, at least part of the ground level signal line includes: a second sub-signal line parallel to the first sub-signal line along the extension direction, and the second sub-signal line in the orthographic projection of the display panel is located on the side of the first sub-signal line in the orthographic projection of the display panel towards the functional area.

[0036] The first protective layer covers the second sub-signal line in the orthographic projection of the display panel.

[0037] In some embodiments, the second sub-signal line and the first sub-signal line are respectively electrically connected to different binding electrodes.

[0038] In some embodiments, the second sub-signal line and the first sub-signal line are electrically connected to the same binding electrode.

[0039] In some embodiments, the display device further includes:

[0040] The first adhesive tape is located on the side of the touch conductive layer away from the display panel at least in the binding area.

[0041] The first polarizer is located on a side of the touch conductive layer away from the display panel; a projection of the first polarizer on the display panel covers at least the touch area; in a direction parallel to a plane in which the display panel is located, there is a gap between the first polarizer and the first adhesive tape; at least part of the fan-out line is located in the gap.

[0042] In some embodiments, a projection of the first polarizer on the display panel overlaps a projection of the first protective layer on the display panel.

[0043] The touch conductive layer further includes a plurality of binding electrodes located in the binding area.

[0044] The plurality of binding electrodes are divided into a plurality of binding electrode groups; a projection of the first protective layer on the display panel overlaps a region between the binding electrode groups; a projection of the first protective layer on the display panel overlaps a projection of the first adhesive tape on the display panel; and a projection of the first protective layer on the display panel does not overlap the binding electrodes.

[0045] In some embodiments, a projection of the first protective layer on the display panel covers the touch area.

[0046] The display device further includes a first polarizer located on a side of the first protective layer away from the display panel; a projection of the first polarizer on the display panel covers a projection of the first protective layer on the display panel.

[0047] In some embodiments, a distance between a surface of the first polarizer on a side away from the display panel and the display panel is greater than a distance between a surface of the first adhesive tape on a side away from the display panel and the display panel.

[0048] In some embodiments, at least part of the fan-out line includes a plurality of straight line segments and a plurality of arc line segments, the straight line segments and the arc line segments being alternately connected.

[0049] In some embodiments, the plurality of straight line segments and the plurality of arc line segments include a first straight line segment and a second straight line segment extending in a first direction, a third straight line segment extending in a direction intersecting the first direction and the second direction, a first arc line segment connecting the first straight line segment and the third straight line segment, and a second arc line segment connecting the second straight line segment and the third straight line segment.

[0050] The first straight line segment is located on a side of the third straight line segment facing the functional area, and the second straight line segment is located on a side of the third straight line segment facing the fan binding area.

[0051] In some embodiments, the display panel includes an array substrate and an opposite substrate arranged opposite to each other, and a liquid crystal layer located between the array substrate and the opposite substrate; the touch conductive layer is located on a side of the opposite substrate away from the liquid crystal layer. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0053] FIG. 1 is a structural schematic diagram of a display device provided by an embodiment of the present disclosure;

[0054] FIG. 2 is a sectional view along BB' in FIG. 1 provided by an embodiment of the present disclosure;

[0055] FIG. 3 is a sectional view along CC' in FIG. 1 provided by an embodiment of the present disclosure;

[0056] FIG. 4 is a structural schematic diagram of another display device provided by an embodiment of the present disclosure;

[0057] FIG. 5 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0058] FIG. 6 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0059] FIG. 7 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0060] FIG. 8 is a structural schematic diagram of a first adhesive tape provided by an embodiment of the present disclosure;

[0061] FIG. 9 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0062] FIG. 10 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0063] FIG. 11 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0064] FIG. 12 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0065] FIG. 13 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0066] FIG. 14 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0067] FIG. 15 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0068] FIG. 16 is a structural schematic diagram of still another display device provided by an embodiment of the present disclosure;

[0069] FIG. 17 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0070] FIG. 18 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0071] FIG. 19 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0072] FIG. 20 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0073] FIG. 21 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0074] FIG. 22 is a sectional view along EE' in FIG. 21 according to an embodiment of the present disclosure;

[0075] FIG. 23 is a sectional view along JJ' in FIG. 21 according to an embodiment of the present disclosure;

[0076] FIG. 24 is a structural schematic diagram of another first adhesive tape according to an embodiment of the present disclosure;

[0077] FIG. 25 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0078] FIG. 26 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0079] FIG. 27 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0080] FIG. 28 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0081] FIG. 29 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0082] FIG. 30 is a sectional view along KK' in FIG. 29 according to an embodiment of the present disclosure;

[0083] FIG. 31 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0084] FIG. 32 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0085] FIG. 33 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0086] FIG. 34 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0087] FIG. 35 is a structural schematic diagram of another display device according to an embodiment of the present disclosure;

[0088] FIG. 36 is a structural schematic diagram of a display device according to an embodiment of the present disclosure;

[0089] FIG. 37 is a structural schematic diagram of a display device according to an embodiment of the present disclosure;

[0090] FIG. 38 is a structural schematic diagram of a display device according to an embodiment of the present disclosure;

[0091] FIG. 39 is a structural schematic diagram of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0092] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. And the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict, if necessary. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present disclosure.

[0093] Unless otherwise defined, technical terms or scientific terms used in the present disclosure should be understood as the common meanings to those of ordinary skill in the art to which the present disclosure belongs. The terms “first”, “second” and similar terms used in the present disclosure do not indicate any order, quantity or importance, but are used to distinguish different components. The terms “include”, “contain” and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms “connect” or “connected” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0094] It should be noted that the size and shape of each figure in the drawings do not reflect the true proportions, but only serve to illustrate the present disclosure. And the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout the drawings.

[0095] In the related art, in the scheme of manufacturing the touch conductive layer on the glass substrate on the display side of the display panel, it is usually necessary to use an over coating (OC) to cover the fan-out lines of the touch conductive layer in the fan-out area, so as to protect the fan-out lines. However, the impedance coefficient of the OC is small, and the OC is usually manufactured by deposition, and the film thickness manufactured by the process is thin, so that the anti-static ability of the OC is poor. If static electricity accumulates in the binding area and the fan-out area, there is a path for the static electricity to enter the touch area, and in the static electricity test process, the fan-out lines are also prone to be damaged by static electricity, which affects the yield of the display device.

[0096] The display device provided in the embodiments of the present disclosure is shown in FIG. 1, FIG. 2 and FIG. 3, and the display device comprises:

[0097] The display panel 1 comprises a touch area AA and a peripheral area NA surrounding the touch area AA; the peripheral area NA comprises a binding area NA-1 located on one side of the touch area AA in a first direction Y, and a fan-out area NA-2 located between the binding area NA-1 and the touch area AA;

[0098] The touch conductive layer 2 is located on the display side of the display panel 1, and comprises a plurality of fan-out lines 201 extending from the fan-out area NA-2 to the binding area NA-1; the plurality of fan-out lines 201 comprises a ground level signal line GND;

[0099] The first protective layer 3 is located at least on the side of the plurality of fan-out lines 201 in the fan-out area NA-2 away from the display panel 1; the orthographic projection of the first protective layer 3 on the display panel 1 overlaps the orthographic projection of the plurality of fan-out lines 201 in the fan-out area NA-2 on the display panel 1;

[0100] The first conductive layer 4 is located at least on the side of the first protective layer 3 in the fan-out area NA-2 away from the display panel 1; the first conductive layer 4 is electrically connected with the ground level signal line GND.

[0101] The display device provided in the embodiments of the present disclosure is shown in FIG. 1, FIG. 2 and FIG. 3, and the display device comprises:

[0102] It should be noted that FIG. 2 is a sectional view along BB' in FIG. 1, and FIG. 3 is a sectional view along CC' in FIG. 1.

[0103] It should be noted that in specific implementation, the ground level signal line can be grounded, or a constant 0-volt voltage can be loaded on the ground level signal line.

[0104] In some embodiments, as shown in FIG. 4, the display panel 1 comprises: an array substrate 101 and a counter substrate 102 arranged oppositely, and a liquid crystal layer 103 between the array substrate 101 and the counter substrate 102; the touch conductive layer 2 is located on a side of the counter substrate 102 away from the liquid crystal layer 103.

[0105] That is, in the display device provided by the embodiments of the present disclosure, the display panel is a liquid crystal display panel, and the side of the counter substrate away from the liquid crystal layer is the display side of the display panel. As shown in FIG. 4, the counter substrate 102 comprises: a first substrate 1021, and a black matrix 1022 and a plurality of color resist 1023 on a side of the first substrate 1021 facing the liquid crystal layer 103. The black matrix 1022 comprises a plurality of opening regions, and the color resist 1023 is located at least in the opening regions. The touch conductive layer 2 is located on a side of the first substrate 1021 away from the black matrix 1022. Such a display device in which the touch conductive layer 2 is arranged on the side of the first substrate 1021 of the counter substrate 102 away from the liquid crystal layer 103 is called an SLOC display device.

[0106] Of course, in some embodiments, the display panel can also be an organic light-emitting diode (OLED) panel or a micro light-emitting diode display (Micro LED) panel.

[0107] In some embodiments, as shown in FIG. 4, the array substrate 101 comprises: a second substrate 1011, and a plurality of sub-pixel units 1012 on a side of the second substrate 1011 facing the liquid crystal layer 103; the sub-pixel unit 1012 comprises: a thin film transistor TFT, and a pixel electrode 10121 on a side of the thin film transistor TFT facing the liquid crystal layer 103; wherein the thin film transistor TFT comprises: an active layer 10122, a gate G, a source S and a drain D, and the pixel electrode 10121 is electrically connected to the drain D of the thin film transistor TFT. The array substrate further comprises a plurality of signal lines electrically connected to the plurality of sub-pixel units. The array substrate or the counter substrate further comprises a common electrode. In FIG. 4, the array substrate 101 is taken as an example to illustrate that the common electrode 1018 is included. In FIG. 4, the common electrode 1018 is located on a side of the pixel electrode 10121 away from the second substrate 1011. Of course, the pixel electrode can also be located on a side of the common electrode away from the second substrate.

[0108] In some embodiments, the thin film transistor TFT in FIG. 4 is a top gate structure, i.e., the gate G is located on the side of the active layer 10122 facing away from the second substrate 1011; of course, the gate can also be located between the active layer and the second substrate. The array substrate 101 further includes: a buffer layer 1013 located between the active layer 10122 and the second substrate 1011, a gate insulating layer 1014 located between the active layer 10122 and the gate G, an interlayer insulating layer 1015 located between the gate G and the source S, a passivation layer 1016 located between the source S and the pixel electrode 10121, and a planarization layer 1017 located between the pixel electrode 10121 and the common electrode 1018.

[0109] In a specific implementation, the touch area is the display area of the display device or the display panel. As shown in FIG. 1, the touch conductive layer 2 further includes a plurality of touch electrodes 203 located in the touch area AA. In order to avoid the influence of the touch electrodes 203 on the transmittance of the display panel, in some embodiments, the material of the touch conductive layer is a transparent conductive material, for example, indium tin oxide (ITO) or indium zinc oxide (IZO).

[0110] In some embodiments, the material of the first conductive layer is also ITO or IZO.

[0111] Alternatively, in some embodiments, the material of the first conductive layer is a conductive adhesive. The conductive adhesive can be a conductive adhesive tape or the like.

[0112] In some embodiments, as shown in FIG. 1, the touch conductive layer 2 further includes:

[0113] a plurality of binding electrodes 202 located in the binding area NA-1; the binding electrodes 202 are electrically connected to the fan-out lines 201.

[0114] In some embodiments, as shown in FIG. 1, the touch electrodes 203 are block-shaped, and the plurality of touch electrodes 203 are arranged in an array. The touch conductive layer 2 further includes a plurality of touch signal lines 2-1 electrically connected to the plurality of touch electrodes 203; the plurality of touch signal lines 2-1 extend from the touch area AA to the binding area NA-1 and are electrically connected to the binding electrodes 202. That is, the part of the touch signal line 2-1 extending to the fan-out area NA-2 and the binding area NA-1 is the corresponding fan-out line 201 of the touch signal line 2-1. The plurality of binding electrodes 202 include: a plurality of first binding electrodes 2021 electrically connected one-to-one to the touch signal lines 2-1, and a second binding electrode 2022 electrically connected to a ground level signal line GND.

[0115] In some embodiments, as shown in FIG. 1, the plurality of binding electrodes 202 at least includes a second binding electrode 2022 located on both sides of a plurality of first binding electrodes 2021 respectively; the ground level signal line GND extends from the second binding electrode 2022 on one side, passes through the fan-out area NA-2, and then passes through the peripheral area NA located on one side (for example, the left side) of the touch area AA, the peripheral area NA located on the side of the touch area AA away from the fan-out area NA-2, the peripheral area NA located on the other side (for example, the right side) of the touch area AA, and extends through the fan-out area NA-2 and is electrically connected with the second binding electrode 2022 on the other side.

[0116] In some embodiments, as shown in FIG. 5, the display device further comprises:

[0117] The first flexible circuit board 501 is bound with the binding electrode 202;

[0118] The driving printed circuit board 7 is bound with the first flexible circuit board 501.

[0119] In some embodiments, the display device further comprises: a driving element bound with the first flexible circuit board

[0120] The first flexible circuit board 501 is bound with the plurality of binding electrodes 202 located in the binding area NA-1, so that the first flexible circuit board 501 can be used to realize the electrical connection between the touch conductive layer 2 and the driving element, and the signal transmission between the driving element and the touch conductive layer 2. The first flexible circuit board 501 is also bound with the driving printed circuit board 7, so that the signal transmission between the driving printed circuit board 7 and the driving element can be realized through the first flexible circuit board 501.

[0121] In some embodiments, as shown in FIG. 5, the display device can also comprise: a chip on film 5, wherein the chip on film 5 comprises the first flexible circuit board 501 and a driving element (not shown).

[0122] In some embodiments, as shown in FIG. 6 and FIG. 7, the driving printed circuit board 7 is also electrically connected with the display panel 1. For example, the display device further comprises: a second flexible circuit board 16 bound with the array substrate 101. The driving printed circuit board 7 is also bound with the second flexible circuit board 16.

[0123] It should be noted that the display device provided by the embodiments of the present disclosure is a display device with touch function. The touch electrode is used as a sensor capacitor to perceive external touch operations, and the touch operations are converted into electrical signals and sent to a driving element. The driving element converts the electrical signals into digital signals for processing, identifies the coordinates of the touch operations and touch gestures, and reflects the corresponding touch operations and gestures to the display device through a driving printed circuit board. In some embodiments, the touch recognition is self-capacitive, and the output and reception of the excitation signal of the touch signal are completed by the same touch electrode. As shown in FIG. 1, the touch electrode 203 is electrically connected to the touch signal line 2-1 one by one.

[0124] It should be noted that for the display device in which the touch electrode is electrically connected to the touch signal line one by one, taking a display device including 75×20 touch electrodes as an example, 1500 touch signal lines are needed to be electrically connected to 1500 touch electrodes. For a narrow-frame display product, the width of the peripheral area where the fan-out area is located is small, for example, 4.5 mm, which leads to a very small wiring space of the touch signal line 2-1. In the fan-out area, the distance between two adjacent touch signal lines 2-1 is only 6.5 microns. If the fan-out line in the fan-out area is only covered by the first protective layer, and the anti-static ability of the first protective layer is not good enough, there is a risk of static shock to the fan-out line. The display device provided by the embodiments of the present disclosure sets the first conductive layer on the first protective layer to increase the static discharge path. Even for a product in which the distance between adjacent fan-out lines is small, if static electricity accumulates in the fan-out area, the static electricity can be discharged through the first conductive layer and the ground level signal line, which can avoid static shock to the fan-out line and improve the yield of the display device.

[0125] In some embodiments, as shown in FIG. 5, the display device further includes:

[0126] The first adhesive tape 17 is located on the side of the first flexible circuit board 501 away from the binding electrode 202. Specifically, the first adhesive tape 17 is located on the side of the touch conductive layer 2 away from the display panel 1 at least in the binding area NA-1, that is, the orthographic projection of the first adhesive tape 17 on the display panel 1 covers at least the binding area NA-1, and the first adhesive tape 17 covers at least the first flexible circuit board 501 located in the binding area NA-1.

[0127] In some embodiments, as shown in FIG. 8, the first adhesive tape 17 includes a second insulating layer 1702, a second conductive layer 1701, and a first insulating layer 1703 arranged in layers; the first insulating layer 1703 is located on the side of the second conductive layer 1701 away from the first flexible circuit board 501; and the second insulating layer 1702 is located between the second conductive layer 1701 and the first flexible circuit board 501.

[0128] Specifically, the second conductive layer is used to prevent electromagnetic interference, and the second conductive layer is grounded. The size of the second conductive layer can be larger than the size of the first flexible circuit board. Moreover, since the chip on film is bonded with the plurality of bonding electrodes of the touch conductive layer, that is, in the peripheral area, the chip on film also covers a part of the area of the touch conductive layer, and in this area, the second conductive layer can also play a role in electrostatic protection, that is, static electricity can also be conducted out through the first conductive tape, that is, the second conductive layer can also protect the touch conductive layer located in the peripheral area. The first insulating layer and the second insulating layer can prevent the second conductive layer from short-circuiting with other film layers, and the insulating protective layer can also play a role in heat dissipation.

[0129] In some embodiments, the first insulating layer and the second insulating layer are both light-shielding insulating layers.

[0130] In some embodiments, as shown in FIGS. 6 and 7, the display device further comprises a backlight module 8 and a back plate 9. The display panel 1 is located on the light-emitting side of the backlight module 8.

[0131] In some embodiments, the back plate is usually a metal or metal alloy die casting, and the back plate, for example, comprises a bottom plate and a side plate, wherein only the bottom plate of the back plate 9 is shown in FIGS. 6 and 7. The bottom plate and the side plate form a containing space that contains the backlight module and the display panel, and the display panel and the backlight module are assembled and fixed with the back plate. Specifically, the array substrate also comprises a plurality of signal lines electrically connected with the thin film transistors and the common electrode, and a plurality of array substrate bonding electrodes electrically connected with the plurality of signal lines. In some embodiments, as shown in FIGS. 6 and 7, the array substrate bonding electrodes (not shown) are bonded with the second flexible circuit board 16, and the driving printed circuit board 7 bonded with the chip on film 5 is also bonded with the second flexible circuit board 16. For example, as shown in FIG. 6, the chip on film 5 is bonded with the bonding electrodes 202 of the touch conductive layer 2 on the first substrate 1021 from the front side of the display panel 1, that is, the light-emitting surface, and the chip on film 5 and the first tape 17 are folded along the side surface of the display panel 1, and the first tape 17 is in contact with the back plate 9, so that the second conductive layer (not shown) in the first tape 17 is grounded, so that the second conductive layer plays a role in preventing electromagnetic interference.

[0132] In specific implementation, in at least part of the area where the first tape is in contact with the back plate, the second insulating layer is removed so that the second conductive layer is exposed to direct contact with the back plate.

[0133] In some embodiments, as shown in FIG. 7, the bottom plate of the back plate 9 has a containing space for the driving printed circuit board 7, and the driving printed circuit board 7 is located on the side of the bottom plate of the back plate 9 away from the backlight module 8.

[0134] Alternatively, in some embodiments, the outer side of the side plate of the back plate can also have a containing space for the driving printed circuit board, and the driving printed circuit board is located in the containing space of the side plate.

[0135] In some embodiments, as shown in FIGS. 1-3, 5, 6, 7, 9, the first conductive layer 4 comprises: a first portion 401;

[0136] The first portion 401 falls within the orthographic projection of the first protective layer 3 on the display panel 1.

[0137] In some embodiments, as shown in FIG. 1, the first portion 401 is a continuous pattern arranged on the whole surface.

[0138] The display device provided by the embodiments of the present disclosure has the first portion arranged on the whole surface as a continuous pattern, so that the first conductive layer occupies a larger area, which is more conducive to the discharge of charges and improves the anti-static capability of the display device, avoids the risk of static electricity damaging the fan-out lines, and improves the yield of the display device.

[0139] Alternatively, in some embodiments, as shown in FIG. 10, the first portion 401 is a grid pattern. That is, the first portion 401 has openings 4011; the orthographic projection of the openings 4011 on the display panel (not shown) overlaps the orthographic projection of the fan-out lines (not shown) on the display panel.

[0140] The display device provided by the embodiments of the present disclosure has the first portion arranged on the whole surface as a continuous pattern, so that the first conductive layer occupies a larger area, which is more conducive to the discharge of charges and improves the anti-static capability of the display device, avoids the risk of static electricity damaging the fan-out lines, and improves the yield of the display device.

[0141] In some embodiments, as shown in FIG. 1, the first portion 401 and the first protective layer 3 each have an edge parallel to the second direction X, and the distance H1 between the edges parallel to the second direction X of adjacent first portions 401 and the edges parallel to the second direction X of the first protective layer 3 is greater than 0; the second direction X is perpendicular to the first direction Y. In FIG. 1, the second direction X is perpendicular to the first direction Y. Specifically, on the side facing the functional area AA, the distance H1 between the edges parallel to the second direction X of the first portion 401 and the edges parallel to the second direction X of the first protective layer 3 is denoted as H11, and on the side facing the binding area NA-1, the distance H1 between the edges parallel to the second direction X of the first portion 401 and the edges parallel to the second direction X of the first protective layer 3 is denoted as H12, both H11 and H12 are greater than 0. H11 and H12 can be equal or not equal, and FIG. 1 illustrates the case where H11 and H12 are not equal.

[0142] The display device provided by the embodiments of the present disclosure can ensure the occupied area of the first part as much as possible, so that the large-area conductor can discharge the charge to release static electricity, improve the anti-static capability of the display device, avoid the risk of static electricity hurting the display device, and improve the yield of the display device.

[0143] In some embodiments, as shown in FIG. 1, in the second direction X, the width H2 of the first part 401 is equal to the width H3 of the first protective layer 3.

[0144] The display device provided by the embodiments of the present disclosure can ensure the occupied area of the first part as much as possible, so that the large-area conductor can discharge the charge to release static electricity, improve the anti-static capability of the display device, avoid the risk of static electricity hurting the display device, and improve the yield of the display device.

[0145] In some embodiments, as shown in FIG. 9, the first part 401 is electrically connected with the ground level signal line GND through the via hole penetrating the first protective layer 3. That is, the first conductive layer 4 only includes the first part 401.

[0146] Alternatively, in some embodiments, as shown in FIG. 2, FIG. 5 and FIG. 6, the first conductive layer 4 further includes: a second part 402 electrically connected with the first part 401.

[0147] The second part 402 is located on the side of the first part 401 facing the binding area NA-1, and the second part 402 is connected with the ground level signal line GND through the side of the first protective layer 3.

[0148] In some embodiments, as shown in FIG. 1-3 and FIG. 5-9, the projection of the first conductive layer 4 on the display panel 1 and the projection of the binding electrode 202 on the display panel 1 do not overlap each other, so as to avoid the influence of the first conductive layer 4 on the binding of the binding electrode 202 and the chip on film 5.

[0149] In specific implementation, as shown in FIG. 1, FIG. 2, FIG. 5 and FIG. 6, when the first conductive layer 4 includes the second part 402, the projection of the second part 402 on the display panel 1 and the projection of the binding electrode 202 on the display panel 1 do not overlap each other.

[0150] In some embodiments, as shown in FIG. 2, FIG. 3 and FIG. 5-9, the distance between the first adhesive tape 17 and the first conductive layer 4 is greater than 0, and they do not contact each other.

[0151] Alternatively, in some embodiments, as shown in FIG. 11-13, the second conductive layer 1701 in the first adhesive tape 17 is in contact with the first conductive layer 4.

[0152] The display device provided by the embodiments of the present disclosure has the advantages that the second conductive layer is in contact with the first conductive layer, and the second conductive layer is grounded, so that static electricity can be discharged through the first conductive layer and the second conductive layer, the static electricity release path is increased, the efficiency of static electricity release is improved, the risk of static electricity hurting the display device is further avoided, and the yield of the display device is improved.

[0153] In some embodiments, as shown in FIGS. 11-13, the second conductive layer 1701 extends to the side of the first conductive layer 4 away from the first protective layer 3.

[0154] The second conductive layer 1701 is in contact with the first conductive layer 4 on the side of the first conductive layer 4 away from the first protective layer 3.

[0155] In specific implementation, when the second conductive layer 1701 is in contact with the first conductive layer 4, if the first conductive layer 4 only includes the first part 401, as shown in FIG. 13, the second conductive layer 1701 is in contact with the first part 401. If the first conductive layer 4 includes the first part 401 and the second part 402, as shown in FIGS. 11 and 12, the second conductive layer 1701 is in contact with at least the first part 401, as shown in FIG. 11, the second conductive layer 1701 can also be in contact with the second part 402. Alternatively, as shown in FIG. 14, the second conductive layer 1701 is only in contact with the second part 402.

[0156] In some embodiments, the material of the second conductive layer is aluminum.

[0157] In some embodiments, as shown in FIGS. 11-14, when the second conductive layer 1701 is in contact with the first conductive layer 4, the area where the second conductive layer 1701 is in contact with the first conductive layer 4 does not include the second insulating layer 1702. That is, the second insulating layer 1702 is removed in the area between the second conductive layer 1701 and the first conductive layer 4.

[0158] In some embodiments, as shown in FIGS. 5-9 and 11-12, the first protective layer 3 does not overlap the touch area AA in the orthographic projection of the display panel 1, and the display device further includes:

[0159] The first polarizer 10 is located on the side of the touch conductive layer 2 away from the display panel 1, and the orthographic projection of the first polarizer 10 covers at least the touch area AA. In the direction parallel to the plane where the display panel 1 is located, there is a gap F between the first polarizer 10 and the first adhesive tape 17, and at least part of the area of the fan-out line 201 is located in the gap F in the orthographic projection of the display panel 1.

[0160] In some embodiments, as shown in FIGS. 5-9 and 11-12, the first polarizer 10 and the first protective layer 3 have an overlap in the orthographic projection of the display panel 1 in the peripheral area NA. Due to the gap F between the first polarizer 10 and the first adhesive tape 17, the first polarizer 10 does not completely cover the first protective layer 3. That is, part of the fan-out area NA-2 is not covered by the first polarizer 10.

[0161] It should be noted that there is a gap between the first polarizer and the second conductive layer in the direction parallel to the plane on which the display panel is located. The thickness of the first protective layer formed by deposition is smaller than the thickness of the first polarizer, and thus the antistatic capability of the first protective layer is weaker than that of the first polarizer. If the gap between the first adhesive tape and the first polarizer only protects the fan-out line through the first protective layer, static electricity is likely to enter the area not covered by the first polarizer, and the fan-out line in the gap between the first adhesive tape and the first polarizer is likely to be struck by static electricity.

[0162] The display device provided by the embodiments of the present disclosure has the first conductive layer electrically connected to the ground-level signal line on the first protective layer. Even if the first polarizer does not completely cover the fan-out area, in the case that static electricity exists in the fan-out area, the static electricity can be discharged through the first conductive layer and the ground-level signal line, and can also be discharged through the first conductive layer and the second conductive layer, thereby avoiding the risk of static electricity striking the display device and improving the yield of the display device.

[0163] In some embodiments, as shown in FIGS. 5-9 and 11-14, the orthographic projection of the first protective layer 3 and the binding area NA-1 do not overlap.

[0164] Alternatively, in some embodiments, as shown in FIG. 15, the plurality of binding electrodes 202 are divided into a plurality of binding electrode groups 202-1 arranged along the second direction X, and no binding electrode 202 is included between adjacent two binding electrode groups 202-1.

[0165] The orthographic projection of the first protective layer 3 and the area between the two binding electrode groups 202-1 have an overlap, the orthographic projection of the first protective layer 3 and the orthographic projection of the first adhesive tape 17 on the display panel 1 overlap, and the orthographic projection of the first protective layer 3 and the binding electrode 202 do not overlap. That is, the distance from the boundary of the first protective layer on the side farthest from the touch area to the touch area is greater than the distance between the boundary of the binding area closest to the touch area and the touch area, so that the first protective layer extends to the area between adjacent binding electrode groups and avoids the area where the binding electrode is bound to the flexible circuit board (not shown), thereby further improving the antistatic capability of the binding area.

[0166] In some embodiments, as shown in FIGS. 5-9, 11-14, the distance between the surface of the first polarizer 10 away from the side of the display panel 1 and the display panel 1 is greater than the distance between the surface of the first adhesive tape 17 away from the side of the display panel 1 and the display panel 1. Thus, the highest point of the remaining structure in the peripheral area is not higher than the first polarizer, and the thickness of the display device is not increased.

[0167] Alternatively, in some embodiments, the distance between the surface of the first polarizer away from the side of the display panel and the display panel is equal to the distance between the surface of the first adhesive tape away from the side of the display panel and the display panel.

[0168] In some embodiments, as shown in FIGS. 16-19, the display device further comprises:

[0169] The first cover layer 18 is located on the side of the first conductive layer 4 away from the display panel 1 in the first peripheral area NA, and the projection of the first cover layer 18 on the display panel 1 is at least located in the fan-out area NA-2.

[0170] The display device provided by the embodiments of the present disclosure further comprises a first cover layer on the side of the first conductive layer away from the first protective layer, which is equivalent to increasing the thickness of the film layer above the fan-out line for protection, thereby further improving the anti-static capability of the display device, avoiding the risk of static shock to the display device, and improving the yield of the display device.

[0171] It should be noted that, in some embodiments, the first cover layer 18 can also be directly arranged on the side of the first protective layer 3 away from the display panel 1, as shown in FIG. 20. In this way, compared with the case where only the first protective layer is arranged in the fan-out area, the fan-out line is protected by the first protective layer and the first cover layer together, and compared with the case where only one layer of the first protective layer is arranged, the thickness of the film layer for protection is increased, and the anti-static capability of the display device can also be improved.

[0172] In some embodiments, the material of the first cover layer 18 comprises ultraviolet curing glue.

[0173] In some embodiments, as shown in FIG. 16, the distance between the first cover layer 18 and the chip on film is greater than or equal to 0. The first cover layer 18 and the region of the chip on film 5 located on the side of the display panel 1 do not overlap each other.

[0174] Alternatively, in some embodiments, as shown in FIG. 17, FIG. 18, the partial area of the first cover layer 18 is located on the side of the COF 5 away from the display panel 1. That is, the first cover layer 18 covers the first conductive layer 4, the partial area of the COF 5, and the area between the first conductive layer 4 and the COF 5. Compared with the case where only the first conductive layer 4 is covered by the first cover layer 18, the anti-static capability of the display device can be further improved, the risk of static shock damaging the fan-out lines can be avoided, and the yield of the display device can be improved.

[0175] In some embodiments, as shown in FIG. 19, the partial area of the first cover layer 18 is located on the side of the first polarizer away from the display panel 1. That is, the first cover layer 18 also extends to cover the edge of the first polarizer, which can further improve the anti-static capability of the display device, avoid the risk of static shock damaging the fan-out lines, and improve the yield of the display device.

[0176] In some embodiments, as shown in FIG. 22, FIG. 24, the second insulating layer 1702 includes at least one removal area 17021.

[0177] As shown in FIG. 21, FIG. 22, the display device further includes:

[0178] The at least one conductive adhesive 6 is located between the at least partially ground signal line GND and the second conductive layer 1701 (not shown in FIG. 21).

[0179] In some embodiments, as shown in FIG. 22, the conductive adhesive 6 is located between the at least partially ground signal line GND and the second conductive layer 1701 in the removal area 17021. The conductive adhesive 6 is in direct contact with the ground signal line GND and the second conductive layer 1701, that is, the ground signal line GND is electrically connected to the second conductive layer 1701 through the conductive adhesive 6.

[0180] The display device provided by the embodiments of the present disclosure sets the conductive adhesive in direct contact with the ground signal line and the second conductive layer, thereby electrically connecting the ground signal line to the second conductive layer through the conductive adhesive, forming an electrostatic discharge loop, further increasing the electrostatic discharge path, improving the anti-static capability of the display device, avoiding the risk of static shock damaging the fan-out lines, and improving the yield of the display device.

[0181] It should be noted that FIG. 22 is a cross-sectional view along EE' in FIG. 21, and FIG. 23 is a cross-sectional view along JJ' in FIG. 21. The first conductive layer is not shown in FIG. 21. In some embodiments, as shown in FIG. 22, FIG. 23, the display device further includes: the first conductive layer 4.

[0182] In some embodiments, as shown in FIG. 25, FIG. 26, the conductive adhesive 6 has an overlap with the projection of the first conductive layer 4 on the display panel 1.

[0183] It should be noted that in FIG. 25, the second conductive layer 1701 also contacts the first conductive layer 4, and in the region where the two contact each other, the second insulating layer 1702 also has a removal region 17021.

[0184] In some embodiments, as shown in FIG. 22 and FIG. 25, the conductive adhesive 6 has an intersection between the orthographic projection of the display panel 1 and the orthographic projection of the second part 402 of the first conductive layer 4 on the display panel 1.

[0185] Alternatively, in some embodiments, as shown in FIG. 22, the conductive adhesive 6 has no intersection between the orthographic projection of the display panel 1 and the orthographic projection of the first conductive layer 4 on the display panel 1.

[0186] In some embodiments, as shown in FIG. 21-FIG. 26, the conductive adhesive 6 has no intersection between the orthographic projection of the display panel 1 and the orthographic projection of the first protective layer 3 on the display panel 1, and the orthographic projection of the conductive adhesive 6 on the display panel 1 is located on the side of the orthographic projection of the first protective layer 3 on the display panel 1 facing the binding area NA-1.

[0187] As shown in FIG. 21, the orthographic projection of the conductive adhesive 6 on the display panel 1 has no intersection with the orthographic projection of the rest of the fan-out lines 201 other than the ground level signal line GND on the display panel 1, and the orthographic projection of the conductive adhesive 6 on the display panel 1 has no intersection with the orthographic projection of the binding electrode 202 on the display panel 1.

[0188] The display device provided by the embodiments of the present disclosure has no intersection between the orthographic projection of the conductive adhesive on the display panel and the orthographic projection of the first protective layer on the display panel, and the orthographic projection of the conductive adhesive on the display panel is located on the side of the orthographic projection of the first protective layer on the display panel facing the binding area, which is equivalent to reducing the width of the first protective layer in the first direction, so that the edge of the first protective layer on the side close to the binding area is moved upward to leave a space for the ground level signal line to be covered by the conductive adhesive, and the ground level signal line is electrically connected to the second conductive layer through the conductive adhesive to increase the electrostatic discharge path. Moreover, the orthographic projection of the conductive adhesive on the display panel has no intersection with the orthographic projection of the rest of the fan-out lines other than the ground level signal line on the display panel, and the orthographic projection of the conductive adhesive on the display panel 1 has no intersection with the orthographic projection of the binding electrode on the display panel, which can avoid interference of the conductive adhesive on the touch signal line 2-1 and the binding electrode.

[0189] In some embodiments, as shown in FIG. 21, the distance between the orthographic projection of the conductive adhesive 6 on the display panel 1 and the orthographic projection of the first protective layer 3 on the display panel 1 is greater than 0. Alternatively, as shown in FIG. 27, the orthographic projection of the conductive adhesive 6 on the display panel 1 is adjacent to the orthographic projection of the first protective layer 3 on the display panel 1, i.e., the distance between the orthographic projection of the conductive adhesive 6 on the display panel 1 and the orthographic projection of the first protective layer 3 on the display panel 1 is equal to 0.

[0190] In some embodiments, as shown in FIG. 22, FIG. 25, the second conductive layer 1701 completely covers the conductive adhesive 6.

[0191] Alternatively, in some embodiments, as shown in FIG. 26, FIG. 27, the second conductive layer 1701 only covers part of the conductive adhesive 6. That is, the conductive adhesive 6 also includes an area not covered by the second conductive layer 1701.

[0192] In some embodiments, as shown in FIG. 21, the display device includes a plurality of ground level signal lines GND in the fan-out area NA-2, and the plurality of ground level signal lines GND includes: a first ground level signal line GND1, a second ground level signal line GND2, and at least one third ground level signal line GND3.

[0193] For example, the first ground level signal line GND1 and the second ground level signal line GND2 are respectively the first fan-out line 201-1 and the last fan-out line 201-z of the plurality of fan-out lines 201 in the arrangement direction (i.e., the second direction X);

[0194] The plurality of binding electrodes 202 are divided into a plurality of binding electrode groups 202-1 arranged along the second direction X, and no binding electrode 202 is included between adjacent two binding electrode groups 202-1; the third ground level signal line GND3 is electrically connected to adjacent two binding electrode groups 202-1.

[0195] The at least one conductive adhesive 6 includes: a first conductive adhesive 601 in contact with the first ground level signal line GND1, a second conductive adhesive 602 in contact with the second ground level signal line GND2, and a third conductive adhesive 603 in contact with the third ground level signal line GND3.

[0196] It should be noted that, as shown in FIG. 21, the first ground level signal line GND1 extends to the peripheral area NA on one side of the touch area AA, the peripheral area NA away from the fan-out area NA-2 on the side of the touch area AA, and the peripheral area NA on the other side of the touch area AA is connected to the second ground level signal line GND2. That is, the first ground level signal line GND1 and the second ground level signal line GND2 are two parts of the same ground level signal line in the fan-out area NA-2.

[0197] In some embodiments, as shown in FIG. 21, in the fan-out area NA-2, the plurality of touch signal lines 2-1 are located in the area between the first ground level signal line GND1 and the second ground level signal line GND2 in the orthographic projection of the display panel 1.

[0198] In some embodiments, as shown in FIG. 21, when the plurality of binding electrodes 202 are divided into a plurality of binding electrode groups 202-1, each binding electrode group 202-1 includes: a plurality of first binding electrodes 2021, and two second binding electrodes 2022; the two second binding electrodes 2022 are respectively located on both sides of the plurality of first binding electrodes 2021 in the second direction X.

[0199] In the direction in which the first ground level signal line GND1 points to the second ground level signal line GND2, the plurality of binding electrode groups 202-1 are arranged in sequence, the binding electrode group 202-1 corresponding to the first ground level signal line GND1 is the first binding electrode group 202-101, and the binding electrode group 202-1 corresponding to the second ground level signal line GND2 is the second binding electrode group 202-102.

[0200] In the first binding electrode group 202-101, the second binding electrode 2022 located on one side of the plurality of first binding electrodes 2021 is electrically connected to the first ground level signal line GND1, and the second binding electrode 2022 located on the other side of the plurality of first binding electrodes 2021 is electrically connected to the third ground level signal line GND3.

[0201] In the second binding electrode group 202-102, the second binding electrode 2022 located on one side of the plurality of first binding electrodes 2021 is electrically connected to the second ground level signal line GND2, and the second binding electrode 2022 located on the other side of the plurality of first binding electrodes 2021 is electrically connected to the third ground level signal line GND3.

[0202] In the remaining binding electrode groups 202-1 (not included in FIG. 21) other than the first binding electrode group 202-101 and the second binding electrode group 202-102, the second binding electrodes 2022 located on both sides of the plurality of first binding electrodes 2021 are electrically connected to the third ground level signal line GND3.

[0203] It should be noted that FIG. 21 takes the example of a binding area including two binding electrode groups 202-1, i.e., the number of third ground level signal lines GND3 is 1.

[0204] In some embodiments, as shown in FIG. 21 and FIG. 28, the ground level signal line GND includes: a first sub-signal line 11 intersecting the first direction Y in the extension direction, the first protective layer 3 and the first sub-signal line 11 do not overlap in the orthographic projection of the display panel 1, and the orthographic projection of the conductive adhesive 6 and the orthographic projection of the first sub-signal line 11 overlap in the display panel 1.

[0205] It should be noted that, as shown in FIG. 21 and FIG. 28, the ground signal line GND further includes a portion 12 connected to both ends of the first sub-signal line 11 and extending along the first direction Y. As shown in FIG. 28, the conductive adhesive 6 in the orthographic projection of the display panel 1 can only overlap the first sub-signal line 11 in the orthographic projection of the display panel 1, and the conductive adhesive 6 in the orthographic projection of the display panel 1 does not overlap the portion 12 of the ground signal line GND extending along the first direction Y in the orthographic projection of the display panel 1. Alternatively, as shown in FIG. 21, the conductive adhesive 6 in the orthographic projection of the display panel 1 can overlap the first sub-signal line 11 in the orthographic projection of the display panel 1, the portion 12 of the ground signal line GND extending along the first direction Y in the orthographic projection of the display panel 1, and the conductive adhesive 6 in the orthographic projection of the display panel 1.

[0206] In some embodiments, as shown in FIG. 21 and FIG. 28, the first sub-signal line 11 is electrically connected to different portions 12 extending along the first direction Y at both ends of the extension direction of the first sub-signal line 11, and the different portions 12 extending along the first direction Y are respectively a third sub-signal line 12-1 and a fourth sub-signal line 12-2. In FIG. 21 and FIG. 28, in the extension direction of the first sub-signal line 11, the third sub-signal line 12-1 is located on the left side of the first sub-signal line 11, and the fourth sub-signal line 12-2 is located on the right side of the first sub-signal line 11. In the first ground signal line GND1, the fourth sub-signal line 12-2 is electrically connected to the second bonding electrode 2022; in the second ground signal line GND2, the third sub-signal line 12-1 is electrically connected to the second bonding electrode 2022; and in the third ground signal line GND3, the third sub-signal line 12-1 and the fourth sub-signal line 12-2 are respectively electrically connected to different second bonding electrodes 2022.

[0207] Alternatively, in some embodiments, as shown in FIG. 29 and FIG. 31, at least part of the ground signal line GND includes a second sub-signal line 13 extending in parallel with the first sub-signal line 11, and the orthographic projection of the second sub-signal line 13 on the display panel 1 is located on the side of the orthographic projection of the first sub-signal line 11 on the display panel 1 facing the functional area AA;

[0208] The first protection layer 3 covers the orthographic projection of the second sub-signal line 13 on the display panel 1.

[0209] The display device provided by the embodiments of the present disclosure is equivalent to not changing the width and coverage area of the first protection layer, and adding the first sub-signal line on the side of the original ground signal line facing the bonding area to increase the path of the ground signal line releasing static electricity through the conductive adhesive and the first conductive adhesive layer. In this way, compared with the scheme shown in FIG. 21, the area of the first protection layer covering the fan-out line can be increased while increasing the static electricity release path, the risk of the fan-out line being corroded can be reduced, and the yield of the display device can be improved.

[0210] It should be noted that the cross-sectional view of KK' in FIG. 29 is shown in FIG. 30, for example.

[0211] In some embodiments, as shown in FIG. 29, the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with different binding electrodes 202, respectively.

[0212] In some embodiments, as shown in FIG. 29, the part 12 of the ground level signal line GND extending along the first direction Y, i.e., the third sub-signal line 12-1 and the fourth sub-signal line 12-2, are also electrically connected with the second sub-signal line 13. And the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with the same third sub-signal line 12-1, and the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with the same fourth sub-signal line 12-2.

[0213] Alternatively, in some embodiments, as shown in FIG. 31, the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with the same binding electrode 202.

[0214] The display device provided by the embodiments of the present disclosure has the second sub-signal line electrically connected with the same binding electrode as the first sub-signal line, which is equivalent to adding the first sub-signal line electrically connected with the ground level signal line while avoiding changing the pattern of the binding electrode, and further avoiding changing the wiring pattern of the chip on film bound with the binding electrode, so that the application scenario of the scheme of increasing the electrostatic discharge path can be saved.

[0215] In some embodiments, as shown in FIG. 31, in the first ground level signal line GND1, the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with the same third sub-signal line 12-1, and the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with different fourth sub-signal lines 12-2; in the second ground level signal line GND2, the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with the same fourth sub-signal line 12-2, and the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with different third sub-signal lines 12-1; in the third ground level signal line GND3, the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with different fourth sub-signal lines 12-2, and the second sub-signal line 13 and the first sub-signal line 11 are electrically connected with different third sub-signal lines 12-1.

[0216] In some embodiments, as shown in FIG. 35, when the display device further includes a first cover layer 18, and the conductive adhesive 6 is not completely covered by the second conductive layer 1701, the first cover layer 18 is in contact with the conductive adhesive 6.

[0217] In some embodiments, as shown in FIGS. 32-34, the display device does not include the first conductive layer in the fan-out area NA-2; that is, by arranging at least one conductive adhesive 6 between the ground signal line GND and the second conductive layer 1701, the conductive adhesive 6 is in direct contact with the ground signal line GND and the second conductive layer 1701, that is, the ground signal line GND is electrically connected to the second conductive layer 1701 through the conductive adhesive 6. Thus, the ground signal line is electrically connected to the second conductive layer through the conductive adhesive, thereby forming an electrostatic discharge loop, further increasing the electrostatic discharge path, improving the anti-static capability of the display device, avoiding the risk of electrostatic shock to the fan-out line, and improving the yield of the display device.

[0218] In specific implementation, when the display device includes the conductive adhesive and does not include the first conductive layer, the display device can also be arranged as shown in FIGS. 21, 28, 29, and 31. FIG. 32 is, for example, another cross-sectional view along EE' in FIG. 21, FIG. 33 is, for example, another cross-sectional view along JJ' in FIG. 21, and FIG. 34 is, for example, another cross-sectional view along KK' in FIG. 29.

[0219] In some embodiments, as shown in FIGS. 36 and 37, the first protective layer 3 covers the touch area AA in the orthographic projection of the display panel 1.

[0220] The display device further includes a first polarizer 10 located on the side of the first protective layer 3 away from the display panel 1; the orthographic projection of the first polarizer 10 on the display panel 1 covers the orthographic projection of the first protective layer 3 on the display panel 1, that is, the first polarizer 10 extends to the fan-out area NA-2.

[0221] That is, the display device provided by the embodiments of the present disclosure, the first protective layer extends to cover the touch area, so that the area below the first polarizer is a film layer with a flat surface. Thus, even if the first polarizer extends to cover more of the fan-out area, no bubbles will be generated. Since the anti-static capability of the first polarizer is superior to that of the first protective layer, the anti-static capability of the display device can be further improved, the risk of electrostatic shock to the fan-out line can be avoided, and the yield of the display device can be improved.

[0222] In some embodiments, as shown in FIGS. 36 and 37, the orthographic projection of the first polarizer 10 on the display panel 1 covers the orthographic projection of the first conductive layer 3 on the display panel 1.

[0223] Alternatively, as shown in FIG. 38, the first conductive layer 3 is not arranged on the side of the first protective layer 3 away from the display panel 1, and in the fan-out area NA-2, the first protective layer 3 is directly covered by the first polarizer. This can also improve the anti-static capability of the display device, reduce the risk of electrostatic shock to the fan-out line, and improve the yield of the display device.

[0224] It should be noted that, as shown in FIG. 1, FIG. 21, FIG. 28-FIG. 31, the fan-out line 201 includes a portion extending along the first direction Y and a portion extending along the second direction X, when the first direction Y is perpendicular to the second direction X, the corner at the connection between the portion extending along the first direction Y and the portion extending along the second direction X is a right angle, then it is easy to produce a sharp end discharge to strike the adjacent fan-out line at the right angle corner of the fan-out line.

[0225] In some embodiments, as shown in FIG. 39, at least part of the fan-out line 201 includes a plurality of straight line segments 14 and a plurality of arc line segments 15, the straight line segments 14 and the arc line segments 15 are connected alternately.

[0226] The display device provided by the embodiments of the present disclosure can avoid producing a sharp end discharge to strike the adjacent fan-out line at the corner of the fan-out line, reduce the probability of damage of the fan-out line under the impact of large current such as static electricity, and improve the yield of the display device, because the corners of the fan-out line are rounded angles instead of right angles.

[0227] In some embodiments, when the display device further includes a conductive adhesive, the conductive adhesive is in contact with the first sub-signal line, and the first sub-signal line is, for example, a straight line segment connected between two arc line segments.

[0228] In some embodiments, as shown in FIG. 39, the plurality of straight line segments 14 and the plurality of arc line segments 15 include a first straight line segment 1401 and a second straight line segment 1402 extending along the first direction Y, a third straight line segment 1403 extending in a direction intersecting both the first direction Y and the second direction X, a first arc line segment 1501 connecting the first straight line segment 1401 and the third straight line segment 1403, and a second arc line segment 1502 connecting the second straight line segment 1402 and the third straight line segment 1403.

[0229] The first straight line segment 1401 is located on one side of the third straight line segment 1403 facing the functional area (not shown), and the second straight line segment 1402 is located on one side of the third straight line segment 1403 facing the binding area NA-1.

[0230] In some embodiments, as shown in FIG. 39, the second straight line segment 1402 extends to the binding area NA-1 and is electrically connected with the binding electrode 202.

[0231] The display device provided by the embodiments of the present disclosure is any product or component with display function, such as mobile phones, tablet computers, televisions, displays, notebook computers, digital photo frames, navigation devices, etc. Other essential components of the display device should be understood by those skilled in the art, and are not described here in detail, nor should they be considered as a limitation on the present disclosure.

[0232] In summary, the display device provided by the embodiments of the present disclosure sets the first conductive layer on the first protective layer of the fan-out area, and the first conductive layer is electrically connected with the ground level signal line, thereby increasing the static electricity release path. In this way, even if static electricity is generated in the peripheral area where the fan-out area is located, the static electricity can be released through the first conductive layer and the ground level signal line, thereby avoiding the risk of static electricity hurting the touch conductive layer, and the yield of the display device can be improved.

[0233] Although preferred embodiments of the application have been described herein, it will be apparent to those skilled in the art that various modifications can be made within the scope of the application. Accordingly, it is intended that all such modifications come within the scope of the claims appended hereto and their equivalents.

[0234] Obviously, various modifications and changes can be made to the present disclosure by those skilled in the art without departing from the spirit and scope of the present disclosure. Thus, it is intended that the present disclosure cover the modifications and changes as well.

Claims

1. A display device, wherein, The display device comprises: a display panel comprising a touch area and a peripheral area surrounding the touch area; the peripheral area comprises a binding area located on one side of the touch area in a first direction, and a fan-out area located between the binding area and the touch area; a touch conductive layer located on a display side of the display panel, comprising a plurality of fan-out lines extending from the fan-out area to the binding area; the plurality of fan-out lines comprises a ground level signal line; a first protective layer located on at least one side of the plurality of fan-out lines away from the display panel in the fan-out area; the first protective layer has an intersection with a projection of the plurality of fan-out lines on the display panel in a projection of the display panel; a first conductive layer located on at least one side of the first protective layer away from the display panel in the fan-out area; the first conductive layer is electrically connected with the ground level signal line.

2. The display device according to claim 1, wherein The first conductive layer comprises a first part; the first part falls within the projection of the first protective layer in the projection of the display panel; The first part is electrically connected with the ground level signal line through a via hole penetrating the first protective layer; or, The first conductive layer further comprises a second part electrically connected with the first part; the second part is located on one side of the first part facing the binding area, and the second part is overlapped with the ground level signal line through a side surface of the first protective layer.

3. The display device according to claim 2, wherein The first part has an opening, and the opening is overlapped with the projection of the fan-out line on the display panel in the projection of the display panel.

4. The display device according to claim 2 or 3, wherein The first part and the first protective layer both have edges parallel along a second direction, and the distance between the edges parallel along the second direction of adjacent first parts and the edges parallel along the second direction of the first protective layer is greater than 0; the second direction intersects the first direction.

5. The display device according to any one of claims 2 to 4, wherein In the second direction, the width of the first part is equal to the width of the first protective layer.

6. The display device according to any one of claims 1 to 5, wherein The display device further comprises: a first cover layer located on one side of the first peripheral area away from the first conductive layer of the display panel; the projection of the first cover layer on the display panel is located at least in the fan-out area.

7. The display device of claim 6, wherein, The material of the first cover layer comprises ultraviolet curing glue.

8. The display device according to any one of claims 1 to 7, wherein The touch conductive layer further comprises: a plurality of binding electrodes located in the binding area; the binding electrodes are electrically connected with the fan-out lines; The display device further comprises: a first flexible circuit board bound with the binding electrodes; a first adhesive tape located on one side of the first flexible circuit board away from the binding electrodes; the first adhesive tape comprises a second conductive layer; the second conductive layer is in contact with the first conductive layer.

9. The display device of claim 8, wherein, The first adhesive tape further comprises a first insulating layer located on one side of the second conductive layer away from the first flexible circuit board; The display device comprises a first cover layer, and a part of the first cover layer is located on one side of the first insulating layer away from the display panel.

10. The display device according to claim 8 or 9, wherein The first adhesive tape further comprises a second insulating layer located between the second conductive layer and the first flexible circuit board; the second insulating layer comprises at least one removal area; The display device further comprises: At least one conductive adhesive is located between at least part of the ground level signal line and the second conductive layer in the removing area.

11. The display device of claim 10, wherein, The conductive adhesive does not overlap the first protective layer in the orthographic projection of the display panel, and the orthographic projection of the conductive adhesive is located on the side of the orthographic projection of the first protective layer in the orthographic projection of the display panel facing the binding area. The orthographic projection of the conductive adhesive does not overlap the rest of the fan-out lines other than the ground level signal line in the orthographic projection of the display panel, and the orthographic projection of the conductive adhesive does not overlap the binding electrode in the orthographic projection of the display panel.

12. The display device according to claim 10 or 11, wherein, The display device includes a plurality of ground level signal lines in the fan-out area, and the plurality of ground level signal lines includes a first ground level signal line, a second ground level signal line, and at least one third ground level signal line. The plurality of binding electrodes is divided into a plurality of binding electrode groups arranged along a second direction, and the binding electrodes are not included between adjacent two binding electrode groups; and the third ground level signal line is electrically connected to adjacent two binding electrode groups. The at least one conductive adhesive includes a first conductive adhesive in contact with the first ground level signal line, a second conductive adhesive in contact with the second ground level signal line, and a third conductive adhesive in contact with the third ground level signal line.

13. The display device of claim 12, wherein, The ground level signal line includes a first sub-signal line intersecting the first direction along the extension direction; the orthographic projection of the first protective layer does not overlap the orthographic projection of the first sub-signal line in the orthographic projection of the display panel; and the orthographic projection of the conductive adhesive overlaps the orthographic projection of the first sub-signal line in the orthographic projection of the display panel.

14. The display device of claim 13, wherein, At least part of the ground level signal line includes a second sub-signal line parallel to the first sub-signal line along the extension direction; the orthographic projection of the second sub-signal line is located on the side of the orthographic projection of the first sub-signal line in the orthographic projection of the display panel facing the functional area. The orthographic projection of the first protective layer covers the orthographic projection of the second sub-signal line in the orthographic projection of the display panel.

15. The display device of claim 14, wherein, The second sub-signal line and the first sub-signal line are respectively electrically connected to different binding electrodes.

16. The display device of claim 14, wherein, The second sub-signal line and the first sub-signal line are electrically connected to the same binding electrode.

17. The display device according to any one of claims 1 to 16, wherein The display device further includes: A first adhesive tape located on the side of the touch conductive layer away from the display panel at least in the binding area; A first polarizer located on the side of the touch conductive layer away from the display panel; the orthographic projection of the first polarizer covers at least the orthographic projection of the touch area in the orthographic projection of the display panel; in a direction parallel to the plane on which the display panel is located, there is a gap between the first polarizer and the first adhesive tape, and at least part of the area of the fan-out line in the orthographic projection of the display panel is located in the gap in the orthographic projection of the display panel.

18. The display device of claim 17, wherein, The orthographic projection of the first polarizer overlaps the orthographic projection of the first protective layer in the orthographic projection of the display panel. The touch conductive layer further includes a plurality of binding electrodes in the binding area. The plurality of binding electrodes are divided into a plurality of binding electrode groups; the first protective layer overlaps the area between the orthographic projection of the display panel and the binding electrode groups, the first protective layer overlaps the orthographic projection of the display panel and the first adhesive tape, and the first protective layer does not overlap the orthographic projection of the display panel and the binding electrodes in the orthographic projection of the display panel.

19. The display device according to any one of claims 1 to 16, wherein The orthographic projection of the display panel covers the first protective layer. The display device further comprises a first polarizing plate on the side of the first protective layer away from the display panel; the orthographic projection of the display panel covers the orthographic projection of the first protective layer.

20. A display device according to any one of claims 17 to 19, wherein, The distance between the surface of the first polarizing plate away from the display panel and the display panel is greater than the distance between the surface of the first adhesive tape away from the display panel and the display panel.

21. The display device according to any one of claims 1 to 20, wherein At least part of the fan-out line comprises a plurality of straight line segments and a plurality of arc line segments, the straight line segments and the arc line segments are alternately connected.

22. The display device of claim 21, wherein, The plurality of straight line segments and the plurality of arc line segments comprise a first straight line segment and a second straight line segment extending along the first direction, a third straight line segment extending in a direction intersecting the first direction and the second direction, a first arc line segment connecting the first straight line segment and the third straight line segment, and a second arc line segment connecting the second straight line segment and the third straight line segment. The first straight line segment is located on the side of the third straight line segment facing the functional area, and the second straight line segment is located on the side of the third straight line segment facing the binding area.

23. A display device according to any one of claims 1 to 22, wherein The display panel comprises an array substrate and a counter substrate arranged oppositely, and a liquid crystal layer between the array substrate and the counter substrate; the touch conductive layer is located on the side of the counter substrate away from the liquid crystal layer.

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