Display substrate and display device

Abstract

The invention provides a display substrate. The display substrate comprises a substrate body; the driving circuit layer comprises a plurality of pixel driving circuits located in the display area, a gate driving circuit, a plurality of gate driving signal lines and an electrostatic protection unit, the gate driving circuit, the gate driving signal lines and the electrostatic protection unit are located in the peripheral area, and the pixel driving circuits are arranged in the first direction and the second direction; the gate drive circuit is located on at least one side of the pixel drive circuits in the first direction, the gate drive signal lines are electrically connected with the gate drive circuit, and the electrostatic protection unit is electrically connected with the gate drive signal lines; the light-emitting device layer is located on the side, away from the substrate, of the driving circuit layer; the color film layer is located on the side, away from the substrate, of the light emitting device layer, the electrostatic protection unit comprises a plurality of electrostatic protection transistors, the color film layer comprises a protection part located in the peripheral area, and the orthographic projection of the protection part on the substrate and the orthographic projection of the electrostatic protection transistors on the substrate are at least partially overlapped.

Description

Technical Field

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

[0002] At present, medium and large-sized organic light-emitting diode (OLED) top-emitting products can share pixel circuits and opening areas, so their products have also presented multiple application scenarios, such as transparent display, etc. With the continuous improvement of product quality, the demand for product borders is becoming narrower and narrower. How to achieve narrow borders without causing other display defects is one of the topics that display product developers are concerned about.

[0003] The above information disclosed in this section is only for understanding the background of the inventive concept of the present disclosure and therefore the above information may contain information that does not constitute the prior art. Summary of the invention

[0004] In one aspect, a display substrate is provided, the display substrate comprising a display area and a peripheral area located around the display area, the display substrate comprising:

[0005] substrate substrate;

[0006] A driving circuit layer, located on the base substrate, the driving circuit layer comprising a plurality of pixel driving circuits located in the display area and a gate driving circuit, a plurality of gate driving signal lines and an electrostatic protection unit located in the peripheral area, the plurality of pixel driving circuits being arranged along a first direction and a second direction, the gate driving circuit being located on at least one side of the plurality of pixel driving circuits along the first direction, the plurality of gate driving signal lines being electrically connected to the gate driving circuit, and the electrostatic protection unit being located on one side of the gate driving circuit along the second direction and being electrically connected to the plurality of gate driving signal lines;

[0007] a light emitting device layer, located on a side of the driving circuit layer away from the base substrate; and

[0008] The color filter layer is located on a side of the light emitting device layer away from the base substrate.

[0009] The electrostatic protection unit includes a plurality of electrostatic protection transistors, the color filter layer includes a protection portion located in the peripheral area, and the orthographic projection of the protection portion on the base substrate at least partially overlaps with the orthographic projection of the electrostatic protection transistor on the base substrate.

[0010] According to some exemplary embodiments, the electrostatic protection unit includes a plurality of electrostatic protection parts arranged at intervals along the second direction, and the plurality of electrostatic protection parts are electrically connected to the plurality of gate drive signal lines respectively;

[0011] Wherein, an orthographic projection of a side of the protection portion close to the display area along the second direction on the base substrate is closer to the display area than an orthographic projection of the electrostatic protection portion closest to the display area on the base substrate; and / or

[0012] An orthographic projection of a side of the protection portion away from the display area along the second direction on the base substrate is farther away from the display area than an orthographic projection of the static electricity protection portion farthest from the display area on the base substrate.

[0013] According to some exemplary embodiments, at least one of the electrostatic protection portions includes a first protection portion and a second protection portion distributed along the first direction, the first protection portion includes at least one first electrostatic protection transistor, the second protection portion includes at least one second electrostatic protection transistor, and the second protection portion is closer to the center of the display area than the first protection portion;

[0014] The orthographic projection of the side of the protection portion along the first direction away from the center of the display area on the base substrate is farther away from the center of the display area than the orthographic projection of the first protection portion on the base substrate; and / or,

[0015] The orthographic projection of the side of the protection portion along the first direction close to the center of the display area on the base substrate is closer to the center of the display area than the orthographic projection of the second protection portion on the base substrate.

[0016] According to some exemplary embodiments, the driving circuit layer further includes a first connecting wire and a first electrostatic path located in the peripheral area, the first connecting wire extends along the second direction and is located on a side of the first guard portion away from the second guard portion, and the first electrostatic path is located on a side of the plurality of first guard portions away from the display area;

[0017] The first connecting wires are electrically connected to the first protection parts and the first electrostatic path respectively;

[0018] The orthographic projection of the side of the protection portion away from the center of the display area along the first direction on the base substrate is farther away from the center of the display area than the orthographic projection of the connecting line on the base substrate; and / or,

[0019] The driving circuit layer further includes a second connecting wire and a second electrostatic path located in the peripheral area, the second connecting wire extends along the second direction and is located on a side of the second protection portion away from the first protection portion, and the second electrostatic path is located on a side of the plurality of second protection portions away from the display area;

[0020] The second connecting wires are respectively electrically connected to the plurality of the second protection parts and the second electrostatic path;

[0021] The orthographic projection of the side of the protection portion along the first direction close to the center of the display area on the base substrate is closer to the center of the display area than the orthographic projection of the second connection line on the base substrate.

[0022] According to some exemplary embodiments, an orthographic projection of the protection portion on the base substrate partially overlaps with an orthographic projection of the first electrostatic path on the base substrate; and / or,

[0023] An orthographic projection of the protection portion on the base substrate partially overlaps with an orthographic projection of the second electrostatic path on the base substrate.

[0024] According to some exemplary embodiments, the plurality of gate drive signal lines include a plurality of second signal lines, the second signal lines include a first signal segment extending along the second direction, the first signal segment is located on a side of the second guard portion away from the first guard portion; and

[0025] An orthographic projection of the protection portion on the base substrate partially overlaps with an orthographic projection of at least one of the first signal segments on the base substrate.

[0026] According to some exemplary embodiments, the display substrate further includes a cover plate and a sealant, the cover plate is located on a side of the color filter layer away from the base substrate, and the sealant is located between the base substrate and the cover plate and is disposed around the display area;

[0027] The material of the frame glue includes a photocurable material, the orthographic projection of the frame glue on the base substrate partially overlaps with the orthographic projection of the gate driving circuit on the base substrate, and the orthographic projection of the frame glue on the base substrate is spaced from the orthographic projection of the protection part on the base substrate.

[0028] According to some exemplary embodiments, the color filter layer includes a black matrix layer, a red color filter layer, a green color filter layer, and a blue color filter layer, and the protection portion is located in at least one of the black matrix layer and the blue color filter layer.

[0029] According to some exemplary embodiments, a shape of the protection portion on the base substrate includes a rectangle.

[0030] According to some exemplary embodiments, the orthographic projection of the sealant on the base substrate includes an annular projection portion, and the orthographic projection of the electrostatic protection unit on the base substrate is located within the annular projection portion.

[0031] According to some exemplary embodiments, at least a portion of the electrostatic protection unit is located on one side of the display area along the second direction.

[0032] According to some exemplary embodiments, the plurality of gate drive signal lines include a plurality of second signal lines, the second signal lines include a first signal segment extending along the second direction and a second signal segment extending along the first direction, the first signal segment is located on a side of the second protective portion away from the first protective portion, and the second signal segment is located on a side of the electrostatic protection unit close to the display area.

[0033] According to some exemplary embodiments, the second signal line further includes a third signal segment extending along the second direction, the third signal segment is located on a side of the electrostatic protection unit close to the display area and is electrically connected to the second signal segment; and

[0034] The orthographic projection of the electrostatic protection unit on the base substrate is closer to the center of the display area in the first direction than the orthographic projection of at least one of the third signal segments on the base substrate.

[0035] According to some exemplary embodiments, the display substrate further includes a cover plate and a frame glue, the cover plate is located on the side of the color filter layer away from the base substrate, the frame glue is located between the base substrate and the cover plate, there is a gap layer between the color filter layer and the light-emitting device layer, and the protection part and the electrostatic protection transistor are spaced apart on both sides of the gap layer.

[0036] According to some exemplary embodiments, the light-emitting device layer includes a first electrode layer located on a side of the driving circuit layer away from the base substrate, a light-emitting functional layer located on a side of the first electrode layer away from the base substrate, and a second electrode layer located on a side of the light-emitting functional layer away from the base substrate, and the orthographic projection of the first electrode layer on the base substrate is spaced apart from the orthographic projection of the electrostatic protection transistor on the base substrate.

[0037] In another aspect, a display device is provided, comprising the display substrate as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other objects and advantages of the present disclosure will be apparent from the following description of the present disclosure with reference to the accompanying drawings and will help to have a comprehensive understanding of the present disclosure.

[0039] Figure 1 A plan view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0040] Figure 2 A cross-sectional view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0041] Figure 3 The diagram schematically shows a burn-in phenomenon of a display substrate according to some embodiments of the present disclosure.

[0042] Figure 4 A plan view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0043] Figure 5 Schematically shows Figure 4 Magnified view of area B in the middle.

[0044] Figure 6 A cross-sectional view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0045] Figure 7 Schematically shows Figure 5 Magnified view of area C in the middle.

[0046] Figure 8 Schematically shows Figure 5 A magnified view of region C in the figure, where Figure 8 It is mainly used to schematically illustrate the structure of the electrostatic protection unit located in area C.

[0047] It should be noted that, for the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the sizes of layers, structures or regions may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0048] In the following description, for the purpose of explanation, many specific details are set forth to provide a comprehensive understanding of various exemplary embodiments. However, it is apparent that various exemplary embodiments may be implemented without these specific details or with one or more equivalent arrangements. In other cases, well-known structures and devices are shown in block diagram form to avoid making various exemplary embodiments unnecessarily obscure. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, the specific shape, configuration, and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0049] In the accompanying drawings, the size and relative size of the elements may be exaggerated for the purpose of clarity and / or description. Thus, the size and relative size of the individual elements are not necessarily limited to the size and relative size shown in the drawings. When the exemplary embodiments may be implemented differently, the specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially simultaneously or in an order opposite to the described sequence. In addition, the same reference numerals represent the same elements.

[0050] When an element is described as "on" another element, "connected to" another element or "coupled to" another element, the element may be directly on another element, directly connected to another element or directly coupled to another element, or there may be an intermediate element. However, when an element is described as "directly on" another element, "directly connected to" another element or "directly coupled to" another element, there is no intermediate element. Other terms and / or expressions used to describe the relationship between elements should be interpreted in a similar manner, for example, "between..." versus "directly between...", "adjacent" versus "directly adjacent" or "on..." versus "directly on...", etc. In addition, the term "connection" may refer to physical connection, electrical connection, communication connection and / or fluid connection. In addition, the X-axis, Y-axis and Z-axis are not limited to the three axes of the rectangular coordinate system, and can be interpreted in a broader sense. For example, the X-axis, Y-axis and Z-axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purpose of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z such as XYZ, XY, YZ, and XZ. As used herein, the term "and / or" includes any and all combinations of one or more of the listed associated items.

[0051] It should be understood that, although the terms first, second, etc. may be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the exemplary embodiment, a first element may be named a second element, and similarly, a second element may be named a first element.

[0052] Figure 1 A plan view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0053] Reference Figure 1The display substrate includes a display area AA and a peripheral area NA located around the display area AA. The peripheral area NA is provided with a gate drive circuit GOA. A pixel drive circuit PDC is provided in the display area AA. The gate drive circuit GOA is located on at least one side of the display area AA along the first direction X. The gate drive circuit GOA is used to provide a gate signal to the pixel drive circuit PDC. The peripheral area NA is also provided with an electrostatic protection unit 400 electrically connected to the gate drive circuit GOA. The electrostatic protection unit 400 is located on one side of the gate drive circuit GOA along the second direction Y. The electrostatic protection unit 400 is used to release the static charge in the gate drive circuit GOA to prevent the gate drive circuit GOA from being damaged by static electricity and causing poor display.

[0054] The peripheral area NA is also provided with a frame glue, and the frame glue is provided around the display area AA. The inventor has found through research that when ultraviolet light (UV) curing glue is used to form the frame glue, it is beneficial to narrow the width of the frame glue and has a better packaging effect. However, the transistor in the electrostatic protection unit 400 will have a characteristic drift problem, so that a large current will be generated in the electrostatic protection unit 400, which will cause the electrostatic protection unit 400 to burn out.

[0055] After further research, the inventors found that the reason why the transistors in the ESD protection unit 400 have characteristic drift is that during the curing process of the frame glue, the transistors in the ESD protection unit 400 are also exposed to UV light, which is one of the key influencing factors causing the transistors in the ESD protection unit 400 to have characteristic drift.

[0056] Figure 2 A cross-sectional view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0057] Reference Figure 2 The display substrate includes a base substrate 100, a driving circuit layer 200 located on the base substrate 100, and a light-emitting device layer 300 located on the side of the driving circuit layer 200 away from the base substrate 100. The transistor of the electrostatic protection unit 400 is located in the driving circuit layer 200, and the light-emitting device layer 300 includes a first electrode layer 310, and the first electrode layer 310 includes a light shielding portion 312, and the positive projection of the light shielding portion 312 on the base substrate overlaps with the positive projection of the transistor of the electrostatic protection unit 400 on the base substrate at least partially. That is, the light shielding portion located in the first electrode layer 310 is used to shield the transistor of the electrostatic protection unit 400 to prevent it from being irradiated by UV light during the curing process of the frame glue and causing the problem of characteristic drift.

[0058] Figure 3 The diagram schematically shows a burn-in phenomenon of a display substrate according to some embodiments of the present disclosure.

[0059] Reference Figure 3 , Figure 2 After the display substrate is shielded by the light shielding portion 312 located at the first electrode layer 310, the electrostatic protection unit 400 still frequently burns out. Figure 3 The area circled in the dotted box.

[0060] Based on this problem, the inventors conducted simulation analysis on the transistors of the electrostatic protection unit 400 of the display substrate, and the results are shown in Table 1 below.

[0061] Table 1

[0062]

[0063] The structure of the display substrate 1 is as follows: Figure 2 As shown, the structure of display substrate 2 is similar to that of display substrate 1, except that no light shielding portion located on the first electrode layer 310 is provided above the transistor of the electrostatic protection unit 400. In addition, neither display substrate 1 nor display substrate 2 undergoes a frame glue curing process (that is, neither display substrate 1 nor display substrate 2 is irradiated with UV light). In addition, test points 1 to 4 are points where burnout occurs in the electrostatic protection unit 400 in display substrate 1.

[0064] From the data in Table 1, it can be seen that compared with the simulated current value when Vth is 0V, the reverse sweep current when Vth is -2.5V increases significantly. And compared with the display substrate 2, the forward sweep current and the reverse sweep current of each test point of the display substrate 1 have increased to varying degrees. This verifies that even if UV light is not irradiated, when the light shielding portion 312 located on the first electrode layer 310 is set above the transistor of the electrostatic protection unit 400, it will still cause the transistor of the electrostatic protection unit 400 to have characteristic drift problems.

[0065] After extensive research, the inventors discovered that the key reason why the light shielding portion 312 located on the first electrode layer 310 is provided above the transistor of the electrostatic protection unit 400 and the transistor exhibits characteristic drift is that the light shielding portion 312 located on the first electrode layer 310 is too close to the transistor in the electrostatic protection unit 400, which will hinder the release of gas (Outgassing) in the electrostatic protection unit 400. Incomplete Outgassing causes the transistor in the electrostatic protection unit 400 to exhibit characteristic drift, which in turn causes the electrostatic protection unit 400 to frequently burn out when powered on.

[0066] Figure 4 A plan view of a display substrate according to some embodiments of the present disclosure is schematically shown. Figure 5 Schematically shows Figure 4 Magnified view of area B in the middle. Figure 6A cross-sectional view of a display substrate according to some embodiments of the present disclosure is schematically shown.

[0067] Combined with reference Figure 4 , Figure 5 and Figure 6 The display substrate includes a display area AA and a peripheral area NA located around the display area AA. The display substrate includes a base substrate 100, a driving circuit layer 200 located on the base substrate 100, a light emitting device layer 300 located on a side of the driving circuit layer 200 away from the base substrate 100, and a color filter layer CF located on a side of the light emitting device layer 300 away from the base substrate 100.

[0068] The driving circuit layer 200 includes a plurality of pixel driving circuits PDC located in the display area AA and a gate driving circuit GOA located in the peripheral area NA, a plurality of gate driving signal lines GL and an electrostatic protection unit 400. The plurality of pixel driving circuits PDC are arranged along a first direction X and a second direction Y. The gate driving circuit GOA is located on at least one side of the plurality of pixel driving circuits PDC along the first direction X. The plurality of gate driving signal lines GL are electrically connected to the gate driving circuit GOA. The electrostatic protection unit 400 is electrically connected to the plurality of gate driving signal lines GL, so as to eliminate the static charge accumulated in the gate driving signal lines GL and avoid electrostatic damage thereto.

[0069] The light emitting device layer 300 includes a first electrode layer 310 located on the side of the driving circuit layer 200 away from the substrate 100, a light emitting layer 320 located on the side of the first electrode layer 310 away from the substrate 100, and a second electrode layer 330 located on the side of the light emitting layer 320 away from the substrate 100. The first electrode layer 310 includes a plurality of first electrodes 311 spaced apart in the display area AA, a pixel defining layer PDL is further provided between the first electrode layer 310 and the light emitting layer 320, and the pixel defining layer PDL has a plurality of openings KK spaced apart in the display area AA, and the plurality of openings KK respectively expose a portion of the plurality of first electrodes 311. The light emitting layer 320 contacts the first electrode 311 through the opening KK, the second electrode layer 330 contacts the light emitting layer 320, and one first electrode 311, a portion of the light emitting layer 320 above the first electrode 311, and a portion of the second electrode layer 330 constitute a light emitting device.

[0070] The color filter layer CF includes a red color filter layer CF1, a green color filter layer CF2, a blue color filter layer CF3 and a black matrix layer BM. The red color filter layer CF1 includes a plurality of red color filter portions CF1a located at intervals in the display area AA, the green color filter layer CF2 includes a plurality of green color filter portions CF2a located at intervals in the display area AA, and the blue color filter layer CF3 includes a plurality of blue color filter portions CF3a located at intervals in the display area AA. The black matrix layer BM fills the intervals between the plurality of red color filter portions CF1a, the plurality of green color filter portions CF2a and the plurality of blue color filter portions CF3a. The multiple openings KK include multiple first openings KK1, multiple second openings KK2 and multiple third openings KK3. The orthographic projections of the multiple red color film portions CF1a on the base substrate respectively cover the orthographic projections of the multiple first openings KK1 on the base substrate, the orthographic projections of the multiple green color film portions CF2a on the base substrate respectively cover the orthographic projections of the multiple second openings KK2 on the base substrate, and the orthographic projections of the multiple blue color film portions CF3a on the base substrate respectively cover the orthographic projections of the multiple third openings KK3 on the base substrate.

[0071] The display substrate also includes a protection portion 500 located in the color filter layer CF, that is, the protection portion 500 is formed together in the process of forming the color filter layer CF. The electrostatic protection unit 400 includes a plurality of electrostatic protection transistors TFT, and the protection portion 500 is located in the peripheral area NA, and the orthographic projection of the protection portion 500 on the substrate substrate overlaps at least partially with the orthographic projection of the electrostatic protection transistor TFT on the substrate substrate. By providing the protection portion 500 located in the color filter layer CF, the protection portion 500 can block the curing light from irradiating the electrostatic protection transistor TFT during the curing of the frame glue 600, thereby avoiding the problem of performance drift of the electrostatic protection transistor TFT due to being irradiated by the curing light. On the other hand, the protection portion 500 is far away from the electrostatic protection transistor TFT, and basically will not hinder the release of gas in the electrostatic protection transistor TFT, and thus there will be no performance drift caused by incomplete degassing of the electrostatic protection transistor TFT.

[0072] According to some exemplary embodiments, in combination with reference Figure 4 and Figure 5 The display substrate may further include a functional Bus Line located in the peripheral area NA, the functional Bus Line is located on one side of the electrostatic protection unit 400 along the first direction and on one side of the display area AA along the second direction, the functional Bus Line may be used to transmit a power signal, the power signal may be a first power signal (VDD) connected to the first electrode, or the power signal may be a second power signal (VSS) connected to the second electrode layer.

[0073] According to some exemplary embodiments, referring to Figure 6The driving circuit layer 200 includes a light-shielding layer LS located on the base substrate 100, a buffer layer Buf located on the side of the light-shielding layer LS away from the base substrate 100, an active layer ACT located on the side of the buffer layer Buf away from the base substrate 100, a gate insulating layer GI located on the side of the active layer ACT away from the base substrate 100, a gate metal layer Gate located on the side of the gate insulating layer GI away from the base substrate 100, an interlayer insulating layer ILD located on the side of the gate metal layer Gate away from the base substrate 100, and a source / drain metal layer SD located on the side of the interlayer insulating layer ILD away from the base substrate 100.

[0074] According to some exemplary embodiments, referring to Figure 6 The display substrate also includes a passivation layer PVX located on the side of the source and drain metal layer SD away from the base substrate 100, and a planarization layer PLN located between the passivation layer PVX and the first electrode layer 310. The first electrode 311 is electrically connected to the transistor in the pixel driving circuit through vias in the planarization layer PLN and the passivation layer PVX.

[0075] According to some exemplary embodiments, referring to Figure 6 , the protection part 500 is located in at least one of the black matrix layer BM and the blue color filter layer CF3. It has been verified that when the material of the sealant 600 includes a UV light curing material, since the black matrix layer BM and the blue color filter layer CF3 have a better absorption effect on UV light, it is more beneficial to block the curing light (including UV light) from being projected to the electrostatic protection transistor TFT by placing the protection part 500 in at least one of the black matrix layer BM and the blue color filter layer CF3. For example, the protection part 500 is located in the black matrix layer BM or the blue color filter layer CF3. For another example, the protection part 500 is located in the black matrix layer BM and the blue color filter layer CF3, that is, the protection part 500 is composed of a protection sub-part located in the black matrix layer BM and a protection sub-part located in the blue color filter layer CF3 stacked together.

[0076] According to some exemplary embodiments, referring to Figure 6 The display substrate further includes a cover plate CG and a frame glue 600. The cover plate CG is located on the side of the color filter layer CF away from the base substrate 100, that is, the color filter layer CF is arranged on the side of the cover plate CG close to the base substrate 100. The base substrate 100 provided with a driving circuit layer 200 and a light-emitting device can be referred to as a first substrate M, and the cover plate CG provided with a color filter layer CF can be referred to as a second substrate N. After the first substrate M and the second substrate N are manufactured, a glue layer surrounding the display area AA can be formed on one side of the first substrate M (away from the surface of the base substrate 100). After the second substrate N is aligned and attached to the first substrate M, the glue layer is irradiated with curing light (for example, including UV light) so that the glue layer is cured into a frame glue 600, and the result is obtained. Figure 6 Schematic display substrate.

[0077] Continue to refer to Figure 6 There is a gap layer 700 between the color filter layer CF in the second substrate N and the light-emitting device layer 300 in the first substrate M. The gap layer 700 may include air, inert gas or be in a vacuum state. Correspondingly, the protection part 500 located in the color filter layer CF and the electrostatic protection transistor TFT located in the driving circuit layer 200 are located on both sides of the gap layer 700, so that the gas in the electrostatic protection transistor TFT can be fully released.

[0078] According to some exemplary embodiments, referring to Figure 6 The orthographic projection of the first electrode layer 310 on the substrate is spaced apart from the orthographic projection of the electrostatic protection transistor TFT on the substrate. After the protection portion 500 located in the color filter layer CF is set to achieve the effect of shielding the electrostatic protection transistor TFT from the irradiation of curing light, the first electrode layer 310 can be set away from the electrostatic protection transistor TFT to prevent the first electrode layer 310 from affecting the release of gas in the electrostatic protection transistor TFT.

[0079] Figure 7 Schematically shows Figure 5 Magnified view of area C in the middle. Figure 8 Schematically shows Figure 5 A magnified view of region C in the figure, where Figure 8 It is mainly used to schematically illustrate the structure of the electrostatic protection unit located in area C. Figure 8 The protection structure is omitted.

[0080] According to some exemplary embodiments, in combination with reference Figure 5 , Figure 7 and Figure 8 The electrostatic protection unit 400 includes a plurality of electrostatic protection parts 410 arranged at intervals along the second direction Y, one electrostatic protection part 410 includes at least one electrostatic protection transistor TFT, and the plurality of electrostatic protection parts 410 are electrically connected to a plurality of gate drive signal lines GL, respectively. That is, one electrostatic protection part 410 is used to release the static charge accumulated on a gate drive signal line GL.

[0081] According to some exemplary embodiments, in combination with reference Figure 5 , Figure 7 and Figure 8 The orthographic projection of the side of the protection portion 500 along the second direction Y close to the display area AA on the substrate substrate is closer to the display area AA than the orthographic projection of the electrostatic protection portion 410 closest to the display area AA on the substrate substrate, and the orthographic projection of the side of the protection portion 500 along the second direction Y far from the display area AA on the substrate substrate is farther away from the display area AA than the orthographic projection of the electrostatic protection portion 410 farthest from the display area AA on the substrate substrate.

[0082] That is, the protection portion 500 is located on a side edge ( Figure 7 The side shown in the figure on the upper side) is compared with the electrostatic protection portion 410 ( Figure 7 and Figure 8 The uppermost electrostatic protection portion 410 shown in the figure is closer to the display area AA, and the protection portion 500 is located on a side edge ( Figure 7 The side shown in the figure at the lower side) is compared with the electrostatic protection portion 410 ( Figure 7 and Figure 8 The lowest electrostatic protection portion 410 shown in the diagram is further away from the display area AA, so as to ensure that the protection portion 500 covers all the multiple electrostatic protection portions 410 distributed along the second direction Y, thereby improving the shading effect of the protection portion 500 on the electrostatic protection unit 400.

[0083] According to some exemplary embodiments, in combination with reference Figure 4 , Figure 5 , Figure 7 and Figure 8 At least one electrostatic protection portion 410 includes a first protection portion 411 and a second protection portion 412 distributed along a first direction X, the first protection portion 411 includes at least one first electrostatic protection transistor TFT1, the second protection portion 412 includes at least one second electrostatic protection transistor TFT2, and the second protection portion 412 is closer to the center Q of the display area AA than the first protection portion 411.

[0084] The orthographic projection of the side of the protective portion 500 along the first direction X away from the center Q of the display area AA on the substrate is farther away from the center Q of the display area AA than the orthographic projection of the first protective portion 411 on the substrate. The orthographic projection of the side of the protective portion 500 along the first direction X close to the center Q of the display area AA on the substrate is closer to the center Q of the display area AA than the orthographic projection of the second protective portion 412 on the substrate.

[0085] That is, the protection portion 500 is located on a side edge ( Figure 7 The side shown on the left side) is closer to the end of the first protection portion 411 away from the second protection portion 412 ( Figure 7 and Figure 8 The left end of the first protection portion 411 shown in the figure is further away from the center Q of the display area AA, and the protection portion 500 is located on a side edge ( Figure 7 The side shown on the right side) is closer to the end of the second protection portion 412 away from the first protection portion 411 ( Figure 7 and Figure 8The right end of the second protection portion 412 shown in the figure is closer to the center Q of the display area AA, so as to ensure that the protection portion 500 covers all the electrostatic protection transistors TFT distributed along the second direction Y in the electrostatic protection sub-portion, thereby enhancing the shading effect of the protection portion 500 on the electrostatic protection unit 400.

[0086] For example, the first protection portion 411 may include two first electrostatic protection transistors TFT1 connected in series along the first direction X, the second protection portion 412 may include two second electrostatic protection transistors TFT2 connected in series along the first direction X, and the first protection portion 411 and the second protection portion 412 are connected in parallel.

[0087] It should be noted that, depending on the different signals transmitted by the gate drive signal line GL to which the electrostatic protection part 410 is connected, a part of the electrostatic protection part 410 includes a first protection part 411 and a second protection part 412, and the first protection part 411 and the second protection part 412 are jointly used to release the static charge in the connected gate drive signal line GL; the other part of the electrostatic protection part 410 only includes the first protection part 411, and the first protection part 411 is used to release the static charge in the connected gate drive signal line GL.

[0088] According to some exemplary embodiments, in combination with reference Figure 4 , Figure 7 and Figure 8 The driving circuit layer 200 also includes a first connecting line 421 and a first electrostatic path 431 located in the peripheral area NA. The first connecting line 421 extends along the second direction Y and is located on a side of the first guarding part 411 away from the second guarding part 412. The first electrostatic path 431 is located on a side of the multiple first guarding parts 411 away from the display area AA. The first connecting line 421 is electrically connected to the multiple first guarding parts 411 and the first electrostatic path 431 respectively. That is, one end of the first guarding part 411 is electrically connected to the corresponding gate driving signal line GL, and the other end of the first guarding part 411 is electrically connected to the first connecting line 421 and then electrically connected to the first electrostatic path 431 through the first connecting line 421.

[0089] The orthographic projection of the side of the protection portion 500 away from the center Q of the display area AA along the first direction X on the substrate is farther away from the center Q of the display area AA than the orthographic projection of the connecting line on the substrate. That is, the protection portion 500 is located on a side of the first direction X ( Figure 7 The side shown on the left side) is closer to the end of the first protection portion 411 away from the second protection portion 412 ( Figure 7 and Figure 8The left end of the first protective portion 411 shown in the diagram protrudes a predetermined distance away from the center Q of the display area AA. By increasing the shielding area of ​​the protective portion 500, it is possible to effectively prevent the laterally propagated curing light from irradiating the electrostatic protection transistor TFT and causing its performance drift.

[0090] For example, the first protection part 411 may include two first electrostatic protection transistors TFT1. When the positive static charge accumulated in the connected gate drive signal line GL reaches a certain amount, the gate drive signal line GL will output a high voltage signal. The high voltage signal makes the first electrostatic protection transistor TFT1 in the first protection part 411 turned on. The high voltage signal will be pulled down by the low voltage signal in the first electrostatic path 431, thereby achieving the effect of eliminating static electricity.

[0091] According to some exemplary embodiments, in combination with reference Figure 4 , Figure 7 and Figure 8 The driving circuit layer 200 also includes a second connecting line 422 and a second electrostatic path 432 located in the peripheral area NA. The second connecting line 422 extends along the second direction Y and is located on the side of the second guarding part 412 away from the first guarding part 411. The second electrostatic path 432 is located on the side of the multiple second guarding parts 412 away from the display area AA. The second connecting line 422 is electrically connected to the multiple second guarding parts 412 and the second electrostatic path 432 respectively. That is to say, one end of the second guarding part 412 is electrically connected to the corresponding gate driving signal line GL, and the other end of the second guarding part 412 is electrically connected to the second connecting line 422 and then electrically connected to the second electrostatic path 432 through the second connecting line 422.

[0092] The orthographic projection of the side of the protection portion 500 close to the center Q of the display area AA along the first direction X on the substrate is closer to the center Q of the display area AA than the orthographic projection of the second connection trace 422 on the substrate. That is, the protection portion 500 is located on the other side of the first direction X ( Figure 7 The side shown on the right side) is closer to the end of the second protection portion 412 away from the first protection portion 411 ( Figure 7 and Figure 8 The right end of the second protective portion 412 shown in the figure protrudes a predetermined distance toward the center Q of the display area AA. By increasing the shielding area of ​​the protective portion 500, it is possible to effectively prevent the laterally propagated curing light from irradiating the electrostatic protection transistor TFT and causing its performance drift.

[0093] For example, the second protection part 412 may include two second electrostatic protection transistors TFT2. When the negative static charge accumulated in the connected gate drive signal line GL reaches a certain amount, the gate drive signal line GL will output a low voltage signal. The low voltage signal makes the second electrostatic protection transistor TFT2 in the second protection part 412 turned on. The low voltage signal will be pulled up by the high voltage signal in the second electrostatic path 432, thereby achieving the effect of eliminating static electricity.

[0094] For example, the first connection wiring 421 and the second connection wiring 422 may be located in the light shielding layer LS, and the first electrostatic path 431 and the second electrostatic path 432 may be located in the gate metal layer Gate.

[0095] According to some exemplary embodiments, in combination with reference Figure 5 , Figure 7 and Figure 8 The orthographic projection of the protection portion 500 on the base substrate partially overlaps with the orthographic projection of the first electrostatic path 431 on the base substrate, and the orthographic projection of the protection portion 500 on the base substrate partially overlaps with the orthographic projection of the second electrostatic path 432 on the base substrate.

[0096] That is, the protection portion 500 is located on a side edge ( Figure 7 The side shown in the figure at the lower side) is compared with the electrostatic protection portion 410 ( Figure 7 and 8 The lower ends of the first protective portion 411 and the second protective portion 412 shown in the diagram protrude a predetermined distance away from the display area AA. By increasing the shielding area of ​​the protective portion 500, it is possible to effectively prevent the laterally propagated curing light from irradiating the electrostatic protection transistor TFT and causing its performance drift.

[0097] According to some exemplary embodiments, in combination with reference Figure 5 , Figure 7 and Figure 8 , the plurality of gate drive signal lines GL include a plurality of first signal lines GL1. The plurality of first signal lines GL1 extend along the second direction Y and are arranged along the first direction X, and the plurality of first signal lines GL1 are located on a side of the electrostatic protection unit 400 away from the display area AA along the first direction X. The driving circuit layer 200 further includes a plurality of third connection lines 423 located in the peripheral area NA, the plurality of third connection lines 423 extend along the first direction X and are arranged along the second direction Y, and the plurality of electrostatic protection parts 410 are electrically connected to the plurality of first signal lines GL1 respectively through the plurality of third connection lines 423.

[0098] According to some exemplary embodiments, in combination with reference Figure 4 , Figure 5 , Figure 7 and Figure 8 , the multiple gate drive signal lines GL include multiple second signal lines GL2, the second signal line GL2 includes a first signal segment GL21 extending along the second direction Y, and the first signal segment GL21 is located on the side of the second protection part 412 away from the first protection part 411. The driving circuit layer also includes a plurality of fourth connecting wires 424 located in the peripheral area NA, and the multiple electrostatic protection parts 410 are electrically connected to the multiple second signal lines GL2 through the plurality of fourth connecting wires 424. The orthographic projection of the protection part 500 on the base substrate partially overlaps with the orthographic projection of at least one first signal segment GL21 on the base substrate. Exemplarily, the orthographic projection of the protection part 500 on the base substrate overlaps with the orthographic projection of a first signal segment GL21 closest to the electrostatic protection unit 400 on the base substrate. That is, the protection part 500 is located on a side edge ( Figure 7 The side shown on the right side) is closer to the end of the second protection portion 412 away from the first protection portion 411 ( Figure 7 and Figure 8 The right end of the second protective portion 412 shown in the figure protrudes a predetermined distance toward the center Q of the display area AA. By increasing the shielding area of ​​the protective portion 500, it is possible to effectively prevent the laterally propagated curing light from irradiating the electrostatic protection transistor TFT and causing its performance drift.

[0099] For example, the gate drive signal transmitted by the first signal line GL1 is an AC signal, the gate drive signal transmitted by the second signal line GL2 is a DC signal, and the line width of the second signal line GL2 is greater than the line width of the first signal line GL1. The number of the first signal lines GL1 and the number of the second signal lines GL2 depend on the actual circuit design, and the embodiments of the present disclosure are not limited thereto.

[0100] According to some exemplary embodiments, referring to Figure 7 , the shape of the protection portion 500 on the base substrate 100 may include a rectangle.

[0101] According to some exemplary embodiments, in combination with reference Figure 4 and Figure 5 The orthographic projection of the frame glue 600 on the base substrate partially overlaps with the orthographic projection of the gate driving circuit GOA on the base substrate. By arranging the frame glue 600 and the gate driving circuit GOA to overlap, the frame of the display substrate can be narrowed.

[0102] According to some exemplary embodiments, in combination with reference Figure 4 and Figure 5The material of the sealant 600 includes a light-curing material, that is, the sealant 600 is obtained by first forming a glue layer and then irradiating the glue layer with light to cure. Based on this, the protection part 500 is set away from the sealant 600, that is, the orthographic projection of the sealant 600 on the base substrate is spaced from the orthographic projection of the protection part 500 on the base substrate, thereby avoiding the problem of incomplete curing of the sealant 600 due to the shielding of the protection part 500 during the curing process of the sealant 600.

[0103] According to some exemplary embodiments, in combination with reference Figure 4 and Figure 5 The orthographic projection of the frame glue 600 on the base substrate overlaps with the orthographic projection of the gate drive circuit GOA on the base substrate, and the orthographic projection of the frame glue 600 on the base substrate includes an annular projection portion, and the orthographic projection of the electrostatic protection unit 400 on the base substrate is located in the annular projection portion. The electrostatic protection unit 400 is moved to the side close to the display area AA by a predetermined distance, so that the electrostatic protection unit 400 is set away from the frame glue 600. On the basis of shielding with the protection portion 500, the curing light during the curing process of the frame glue 600 is further prevented from irradiating the electrostatic protection transistor TFT.

[0104] According to some exemplary embodiments, referring to Figure 4 and Figure 5 , at least a part of the electrostatic protection unit 400 is located on one side of the display area AA along the second direction Y, that is, at least one virtual straight line extending along the second direction passes through the orthographic projection of the electrostatic protection unit 400 on the base substrate and the orthographic projection of at least one opening of the pixel defining layer on the base substrate at the same time. This makes the orthographic projection of the electrostatic protection unit 400 on the base substrate and the sealant 600 spaced at a large distance, thereby effectively avoiding the problem of performance drift of the electrostatic protection transistor TFT caused by light irradiating the electrostatic protection transistor TFT during the curing process of the sealant 600.

[0105] According to some exemplary embodiments, in combination with reference Figure 5 and Figure 8 The second signal line GL2 includes a first signal segment GL21 extending along the second direction Y and a second signal segment GL22 extending along the first direction X. The first signal segment GL21 is located on the side of the second protection portion 412 away from the first protection portion 411, and the second signal segment GL22 is located on the side of the electrostatic protection unit 400 close to the display area AA. The first signal segment GL21 is electrically connected to the second signal segment GL22. Since the electrostatic protection unit 400 is arranged away from the frame glue 600, at least a part of the electrostatic protection unit 400 is located on the side of the display area AA along the second direction Y. On this basis, the second signal line GL2 is bent to avoid the electrostatic protection unit 400.

[0106] According to some exemplary embodiments, in combination with reference Figure 4 , Figure 5 , Figure 7 and Figure 8 The second signal line GL2 further includes a third signal segment GL23 extending along the second direction Y. The third signal segment GL23 is located on a side of the electrostatic protection unit 400 close to the display area AA. One end of the third signal segment GL23 is electrically connected to the second signal segment GL22, and the other end extends along the second direction Y to a side away from the electrostatic protection unit 400 and is electrically connected to the gate driving circuit GOA. The orthographic projection of the electrostatic protection unit 400 on the substrate is closer to the center Q of the display area AA in the first direction X than the orthographic projection of at least one third signal segment GL23 on the substrate.

[0107] Exemplarily, the orthographic projection of the electrostatic protection unit 400 on the base substrate is closer to the center Q of the display area AA in the first direction X than the orthographic projection of the third signal segment GL23 closest to the display area AA on the base substrate.

[0108] The inventors have found through research that the above-mentioned setting of the position of the electrostatic protection unit 400 can effectively avoid the problem of performance drift of the electrostatic protection transistor TFT caused by the curing light during the curing process of the frame glue 600 irradiating the electrostatic protection transistor TFT.

[0109] It should be noted that, in this article, the orthographic projection of the electrostatic protection unit 400 on the substrate should be understood as the orthographic projection of the active part of the electrostatic protection transistor TFT in the electrostatic protection unit 400 on the substrate. The embodiment of the present disclosure shields the active part of the electrostatic protection transistor TFT in the electrostatic protection unit 400 and sets the position of the active part of the electrostatic protection transistor TFT in the electrostatic protection unit 400, thereby effectively avoiding the problem of the curing light irradiating the active part of the electrostatic protection transistor TFT in the electrostatic protection unit 400 and causing the performance deviation of the electrostatic protection transistor TFT in the frame glue curing process.

[0110] At least some embodiments of the present disclosure also provide a display device, which includes a display substrate as described above. The display device may include any device or product having a display function. For example, the display device may be a smart phone, a mobile phone, an e-book reader, a desktop computer (PC), a laptop PC, a netbook PC, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (such as a head-mounted device, an electronic clothing, an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch), a television, etc.

[0111] It should be understood that the display device according to some exemplary embodiments of the present disclosure has all the features and advantages of the above-mentioned display substrate, and these features and advantages can be referred to the above description of the display substrate, which will not be repeated here.

[0112] As used herein, the terms "substantially," "approximately," "approximately," and other similar terms are used as terms of approximation rather than as terms of degree, and they are intended to account for the inherent deviations in measured or calculated values ​​that would be recognized by one of ordinary skill in the art. Taking into account factors such as process fluctuations, measurement problems, and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system), "approximately" or "approximately" as used herein include the stated value and mean that the particular value is within an acceptable range of deviation as determined by one of ordinary skill in the art. For example, "approximately" can mean within one or more standard deviations, or within ±10% or ±5% of the stated value.

[0113] Although some embodiments according to the general inventive concept of the present disclosure have been illustrated and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A display substrate, wherein: The display substrate includes a display area and a peripheral area located around the display area, and the display substrate includes: substrate substrate; A driving circuit layer, located on the base substrate, the driving circuit layer comprising a plurality of pixel driving circuits located in the display area and a gate driving circuit, a plurality of gate driving signal lines and an electrostatic protection unit located in the peripheral area, the plurality of pixel driving circuits being arranged along a first direction and a second direction, the gate driving circuit being located on at least one side of the plurality of pixel driving circuits along the first direction, the plurality of gate driving signal lines being electrically connected to the gate driving circuit, and the electrostatic protection unit being electrically connected to the plurality of gate driving signal lines; a light emitting device layer, located on a side of the driving circuit layer away from the base substrate; and The color filter layer is located on a side of the light emitting device layer away from the base substrate. The electrostatic protection unit includes a plurality of electrostatic protection transistors, the color filter layer includes a protection portion located in the peripheral area, and the orthographic projection of the protection portion on the base substrate at least partially overlaps with the orthographic projection of the plurality of electrostatic protection transistors on the base substrate.

2. The display substrate according to claim 1, wherein: The electrostatic protection unit comprises a plurality of electrostatic protection parts arranged at intervals along the second direction, and the plurality of electrostatic protection parts are electrically connected to the plurality of gate drive signal lines respectively; as well as The orthographic projection of the side of the protection portion close to the display area along the second direction on the base substrate is closer to the display area than the orthographic projection of the electrostatic protection portion closest to the display area on the base substrate; And / or, an orthographic projection of a side of the protection portion along the second direction away from the display area on the base substrate is farther away from the display area than an orthographic projection of the electrostatic protection portion farthest from the display area on the base substrate.

3. The display substrate according to claim 2, wherein: At least one of the electrostatic protection parts includes a first protection part and a second protection part distributed along the first direction, the first protection part includes at least one first electrostatic protection transistor, the second protection part includes at least one second electrostatic protection transistor, and the second protection part is closer to the center of the display area than the first protection part; and Among them, the orthographic projection of the side of the protective portion along the first direction away from the center of the display area on the base substrate is farther away from the center of the display area than the orthographic projection of the first protective portion on the base substrate; and / or the orthographic projection of the side of the protective portion along the first direction close to the center of the display area on the base substrate is closer to the center of the display area than the orthographic projection of the second protective portion on the base substrate.

4. The display substrate according to claim 3, wherein: The driving circuit layer also includes a first connecting line and a first electrostatic path located in the peripheral area, the first connecting line extends along the second direction and is located on a side of the first protective part away from the second protective part, and the first electrostatic path is located on a side of multiple first protective parts away from the display area; the first connecting line is electrically connected to multiple first protective parts and the first electrostatic path respectively; the orthographic projection of the side of the protective part away from the center of the display area along the first direction on the substrate is farther away from the center of the display area than the orthographic projection of the connecting line on the substrate; and / or, The driving circuit layer also includes a second connecting line and a second electrostatic path located in the peripheral area, the second connecting line extends along the second direction and is located on a side of the second protective part away from the first protective part, and the second electrostatic path is located on a side of multiple second protective parts away from the display area; the second connecting line is electrically connected to multiple second protective parts and the second electrostatic path respectively; the side of the protective part along the first direction close to the center of the display area is closer to the center of the display area than the orthographic projection of the second connecting line on the substrate.

5. The display substrate according to claim 4, wherein: The orthographic projection of the protection portion on the base substrate partially overlaps with the orthographic projection of the first electrostatic path on the base substrate; and / or, An orthographic projection of the protection portion on the base substrate partially overlaps with an orthographic projection of the second electrostatic path on the base substrate.

6. The display substrate according to any one of claims 3 to 5, wherein: The plurality of gate drive signal lines include a plurality of second signal lines, the second signal lines include a first signal segment extending along the second direction, and the first signal segment is located on a side of the second protection portion away from the first protection portion; as well as An orthographic projection of the protection portion on the base substrate partially overlaps with an orthographic projection of at least one of the first signal segments on the base substrate.

7. The display substrate according to any one of claims 1 to 6, wherein: The display substrate further comprises a cover plate and a sealant, wherein the cover plate is located on a side of the color filter layer away from the base substrate, and the sealant is located between the base substrate and the cover plate and is arranged around the display area; The material of the frame glue includes a photocurable material, the orthographic projection of the frame glue on the base substrate partially overlaps with the orthographic projection of the gate driving circuit on the base substrate, and the orthographic projection of the frame glue on the base substrate is spaced from the orthographic projection of the protection part on the base substrate.

8. The display substrate according to any one of claims 1 to 7, wherein: The color filter layer includes a black matrix layer, a red color filter layer, a green color filter layer and a blue color filter layer, and the protection portion is located at at least one of the black matrix layer and the blue color filter layer.

9. The display substrate according to any one of claims 1 to 8, wherein: The shape of the protection portion on the base substrate includes a rectangle.

10. The display substrate according to claim 7, wherein: The orthographic projection of the sealant on the base substrate includes an annular projection portion, and the orthographic projection of the electrostatic protection unit on the base substrate is located in the annular projection portion.

11. The display substrate according to claim 10, wherein: At least a portion of the electrostatic protection unit is located at one side of the display area along the second direction.

12. The display substrate according to claim 10 or 11, wherein: The multiple gate drive signal lines include multiple second signal lines, the second signal lines include a first signal segment extending along the second direction and a second signal segment extending along the first direction, the first signal segment is located on a side of the second protective portion away from the first protective portion, and the second signal segment is located on a side of the electrostatic protection unit close to the display area.

13. The display substrate according to claim 12, wherein: The second signal line further includes a third signal segment extending along the second direction, the third signal segment is located at a side of the electrostatic protection unit close to the display area and is electrically connected to the second signal segment; and The orthographic projection of the electrostatic protection unit on the base substrate is closer to the center of the display area in the first direction than the orthographic projection of at least one of the third signal segments on the base substrate.

14. The display substrate according to any one of claims 1 to 13, wherein: The display substrate also includes a cover plate and a frame glue, the cover plate is located on the side of the color filter layer away from the base substrate, the frame glue is located between the base substrate and the cover plate, there is a gap layer between the color filter layer and the light-emitting device layer, and the protection part and the electrostatic protection transistor are spaced apart and arranged on both sides of the gap layer.

15. The display substrate according to any one of claims 1 to 14, wherein: The light-emitting device layer includes a first electrode layer located on a side of the driving circuit layer away from the base substrate, a light-emitting functional layer located on a side of the first electrode layer away from the base substrate, and a second electrode layer located on a side of the light-emitting functional layer away from the base substrate, wherein the orthographic projection of the first electrode layer on the base substrate is spaced apart from the orthographic projection of the electrostatic protection transistor on the base substrate.

16. A display device, wherein: The display device comprises the display substrate according to any one of claims 1 to 15.

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