Display screen module, preparation method and display device

Abstract

The embodiment of the invention provides a display screen module, a preparation method and a display device. The display screen module comprises a display area and a wiring circuit board area, the wiring circuit board area comprises a first main body area, a blocking area and a second main body area; the first direction of the wiring circuit board area is the direction from the first main body area to the second main body area; the second direction of the wiring circuit board area is perpendicular to the first direction; the first main body area is arranged on one side, close to the display area, in the wiring circuit board area; the blocking area is arranged on the side, away from the display area, of the first body area. The second body region is arranged on one side of the blocking region away from the first body region; the blocking area comprises a blocking structure and a blocking groove, the blocking structure is arranged on the side close to the first body area, and the blocking groove is formed in the side, close to the second body area, of the blocking structure. The blocking structure and the blocking groove are used for blocking the ink-jet printing layer flowing from the first main body area to the second main body area.

Description

Technical Field

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

[0002] At present, in order to solve the HIAA Waviness (water ripples and bumps in the hole area) problem, after the TOC (top organic layer) process is completed, a 2nd (Second) IJP (Ink Jet Printing, IJP) process is added to the display module to improve the bumps in the appearance of the punching area under light.

[0003] However, due to the high fluidity of IJP, the flow of liquid coating on the display module will cause overflow problems. When the liquid coating flows to the bending area, peeling (film layer anti-arching) phenomenon will occur during the MDL bending process. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a display screen module, a manufacturing method and a display device to improve the film layer back-arching phenomenon. The specific technical solution is as follows:

[0005] The embodiment of the present application provides a display screen module, which includes: a display area and a wiring circuit board area;

[0006] The wiring circuit board area includes a first main body area, a blocking area and a second main body area;

[0007] The first direction of the wiring circuit board area is the direction from the first main body area to the second main body area;

[0008] The second direction of the wiring circuit board area is perpendicular to the first direction;

[0009] The first main body area is arranged on a side of the wiring circuit board area close to the display area; the blocking area is arranged on a side of the first main body area away from the display area; and the second main body area is arranged on a side of the blocking area away from the first main body area;

[0010] The blocking area includes a blocking structure and a blocking groove, wherein the blocking structure is arranged on a side close to the first main body area, and the blocking groove is arranged on a side of the blocking structure close to the second main body area;

[0011] The blocking structure and the blocking groove are used to block the inkjet printing layer flowing from the first main body area to the second main body area.

[0012] In some embodiments of the present application, the wiring circuit board area further includes:

[0013] A protective layer, an interlayer insulating layer, a bottom insulating layer, a first touch metal layer, a second touch metal layer, a source and drain electrode layer, and an inkjet printing layer;

[0014] The first touch metal layer is arranged on one side of the bottom insulating layer, the interlayer insulating layer is arranged on the side of the first touch metal layer away from the bottom insulating layer, the second touch metal layer is arranged on the side of the interlayer insulating layer away from the bottom insulating layer, the protective layer is arranged on the side of the second touch metal layer away from the bottom insulating layer, and the inkjet printing layer is arranged on the side of the protective layer away from the bottom insulating layer;

[0015] The blocking structure and the blocking groove are arranged in the protection layer of the blocking area.

[0016] In some embodiments of the present application, the second touch metal layer is separated in the blocking area, and the protective layer in the blocking area is in contact with the interlayer insulating layer; the interlayer insulating layers in the first main area and the second main area are provided with through holes, and the first touch metal layer and the second touch metal layer are electrically connected through the through holes, and the second touch metal layer and the source and drain layer are electrically connected through the through holes.

[0017] In some embodiments of the present application, the source and drain layer is buried in the bottom insulating layer of the second main body region, the bottom insulating layer in the second main body region is provided with an opening structure, the first touch metal layer extends into the second main body region and is cut off at the opening structure, the source and drain layer contacts the interlayer insulating layer at the opening structure, and the second touch metal layer is electrically connected to the source and drain through the through hole in the opening structure.

[0018] In some embodiments of the present application, the through hole includes: a first through hole, a second through hole, and a third through hole;

[0019] The first through hole is arranged at a position of the interlayer insulating layer of the first main region close to one side of the blocking region;

[0020] The second through hole is arranged at a position of the interlayer insulating layer of the second body region close to one side of the blocking region;

[0021] The third through hole is disposed at the position of the interlayer insulating layer in the opening structure and is located on a side of the second through hole away from the display area;

[0022] The first touch metal layer in the first body area is electrically connected to the second touch metal layer in the first body area through the first through hole; the first touch metal layer in the second body area is electrically connected to the second touch metal layer in the second body area through the second through hole, and the second touch metal layer in the second body area is electrically connected to the source and drain layer in the second body area through the third through hole.

[0023] In some embodiments of the present application, the blocking structure of the blocking area is a columnar recessed structure.

[0024] In some embodiments of the present application, a plurality of columnar recess structures are arranged at intervals along a first direction to form a plurality of columnar recess rows, and the columnar recess structures between two adjacent columns of the columnar recess rows are arranged alternately in a second direction.

[0025] In some embodiments of the present application, the length of the columnar recess structure in the first direction is not less than the gap between two adjacent columnar recess structures in the same columnar recess row;

[0026] In two adjacent rows of columnar recesses, a center line of the columnar recess structures in one row is collinear with a center line of the spaces between two adjacent columnar recess structures in the other row.

[0027] In some embodiments of the present application, the blocking structure is a drainage groove arranged along the first direction and penetrating the side wall of the protective layer; the drainage groove is in an arc shape.

[0028] In some embodiments of the present application, the center of the drainage groove is located in the second main body area.

[0029] The present application also provides a method for preparing a display screen module, the preparation method comprising: obtaining a pre-processed display screen module, the pre-processed display screen module comprising: a bottom insulating layer, an interlayer insulating layer, a first touch metal layer, a second touch metal layer, a source-drain electrode layer and a protective layer;

[0030] Etching the protective layer in the blocking area of ​​the wiring circuit board area to form a blocking structure and a blocking groove;

[0031] forming an inkjet printing layer on a side of the protective layer away from the bottom insulating layer;

[0032] Perform subsequent preparation processes.

[0033] In some embodiments of the present application, the blocking structure of the blocking zone is a columnar recessed structure, a plurality of columnar recessed structures are arranged at intervals along a first direction to form a plurality of rows of columnar recessed rows, and the columnar recessed structures between two adjacent rows of the columnar recessed rows are arranged alternately in a second direction.

[0034] In some embodiments of the present application, the blocking structure is a drainage groove arranged along the first direction and penetrating the side wall of the protective layer; the drainage groove is in an arc shape.

[0035] An embodiment of the present application further provides a display device, comprising the display screen module described in any one of the above embodiments.

[0036] Beneficial effects of the embodiments of the present invention:

[0037] A display screen module, a preparation method and a display device provided by an embodiment of the present invention, wherein the display screen module includes a display area and a wiring circuit board area, wherein the wiring circuit board area includes a first main body area, a blocking area and a second main body area, and the blocking area includes a blocking structure and a blocking groove. The blocking area is arranged between the first main body area and the second main body area. When the inkjet printing process is performed, the flowing liquid coating flows from the first main body area to the second main body area. When the liquid coating passes through the blocking area, the blocking structure and the blocking groove are used to block and place the liquid, and the flow direction of the liquid coating is changed to form a double blockage, thereby slowing down the flow speed of the liquid coating and changing the flow direction, further reducing the situation where the liquid coating flows to the second main body area, and improving the film layer anti-arch phenomenon in the module bending process step.

[0038] Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0040] Figure 1 It is a cross-sectional schematic diagram of a wiring circuit board area of ​​a display screen module in the prior art;

[0041] Figure 2 for Figure 1 A top view of the display screen module in FIG.

[0042] Figure 3 An overall top view of the display screen module provided in the first embodiment of the present application;

[0043] Figure 4 A schematic cross-sectional view of a wiring circuit board area of ​​a display screen module provided in the first embodiment of the present application;

[0044] Figure 5 for Figure 4 A top view of the display screen module in FIG.

[0045] Figure 6 A schematic cross-sectional view of a wiring circuit board area of ​​a display screen module provided in a second embodiment of the present application;

[0046] Figure 7 for Figure 6 A top view of the display module in FIG.

[0047] Reference numerals:

[0048] First main area A, barrier area B, second main area C, first direction X, second direction Y;

[0049] Protective layer (OC, protective layer made of acrylic resin and epoxy resin) 1, blocking structure 11, columnar recessed structure 111, drainage groove 112, columnar recessed row 113, blocking groove 12, gap 13 between two adjacent columnar recessed structures, center line 141 of columnar recessed structure, center line 142 of the gap between two adjacent columnar recessed structures;

[0050] A first touch metal layer (TMA) 21, a second touch metal layer (TMB) 22, and a source-drain layer (SD) 23;

[0051] interlayer insulating layer (TLD) 3, through hole 31, first through hole 311, second through hole 312, third through hole 313;

[0052] Bottom insulating layer 4, inkjet printing layer 5, module cutting road 6, display area a, IC pad electrode 7, wiring circuit board area b. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the present invention.

[0054] In related technologies, such as Figure 1 and Figure 2 As shown, Figure 1 It is a cross-sectional schematic diagram of a wiring circuit board area of ​​a display screen module in the prior art; Figure 2 for Figure 1 A top view of the display screen module in FIG. For easy observation, Figure 2 The protection layer 1 covering the side of the second touch metal layer 22 away from the bottom insulating layer 4 is not shown.

[0055] In the related art, in order to prevent the inkjet printing layer 5 from flowing from the first main body area A to the second main body area C, a blocking groove 12 is provided in the blocking area B between the first main body area A and the second main body area C, for accommodating the inkjet printing layer 5 overflowing from the first main body area A. However, under this design, the blocking groove 12 plays the role of accommodating the inkjet printing layer 5, but since the inkjet printing layer 5 has fluidity, the inkjet printing layer 5 is very likely to overflow, and then flow to the second main body area C, which eventually leads to the Peeling phenomenon during the MDL Bending process.

[0056] In order to solve the above technical problems, the present application provides a display screen module, such as Figure 3 and Figure 4 As shown, Figure 3 This is an overall top view of the display screen module provided in the first embodiment of the present application. Figure 4 This is a cross-sectional schematic diagram of the wiring circuit board area of ​​the display screen module provided in the first embodiment of the present application. For ease of observation, Figure 3 The protective layer 1 covering the side of the second touch metal layer 22 away from the bottom insulating layer 4 is not shown. The display screen module includes: a display area a and a wiring circuit board area b; the wiring circuit board area b includes a first main area A, a blocking area B and a second main area C; the first direction X of the wiring circuit board area b is the direction of the first main area A toward the second main area C; the second direction Y of the wiring circuit board area b is perpendicular to the first direction X; the first main area A is arranged on the side of the wiring circuit board area b close to the display area a; the blocking area B is arranged on the side of the first main area A away from the display area a; the second main area C is arranged on the side of the blocking area B away from the first main area A; the blocking area B includes a blocking structure 11 and a blocking groove 12, the blocking structure 11 is arranged on the side close to the first main area A, and the blocking groove 12 is arranged on the side of the blocking structure 11 close to the second main area C; wherein the blocking structure 11 and the blocking groove 12 are used to block the inkjet printing layer 5 flowing from the first main area A to the second main area C.

[0057] In this embodiment, the display screen module includes a display area a and a wiring circuit board area b, and the wiring circuit board area b includes a first main area A, a blocking area B, and a second main area C. The first main area A is connected to the display area a, and the second main area C is a bending area. The blocking area B is located between the first main area A and the second main area C. The blocking area B includes a blocking structure 11 and a blocking groove 12. The blocking groove 12 is used to accommodate the inkjet printing layer 5 and needs to have a certain depth. In one example, the blocking groove 12 can penetrate the protective layer 1 along the thickness direction of the protective layer 1. In some possible embodiments, the blocking groove 12 can also penetrate the side wall of the protective layer 1 along the first direction X, so that the inkjet printing layer 5 flowing into the blocking groove 12 can be guided out. When the secondary inkjet printing process is performed, the flowing liquid coating flows from the first main area A to the second main area C. When the liquid coating passes through the blocking area B, the blocking structure 11 is used to block and place the liquid, and change the flow direction of the liquid coating, forming a double blockage with the blocking groove 12, thereby slowing down the flow speed of the liquid coating and changing the flow direction, further improving the problem of the film layer arching phenomenon in the module bending process step caused by the liquid coating flowing to the second main area C.

[0058] Below, the display screen module provided in the present application will be introduced by taking the first embodiment of the display screen module provided in the present application as an example.

[0059] In the first embodiment of the present application, Figures 3 to 5 As shown, Figure 5 for Figure 4 A top view of the display screen module in FIG. For easy observation, Figure 5 The protective layer 1 covering the side of the second touch metal layer 22 away from the bottom insulating layer 4 is not shown. The blocking structure 11 is a drainage groove 112 arranged along the first direction X and penetrating the side wall of the protective layer 1; the drainage groove 112 is in an arc shape. The center of the drainage groove 112 is located in the second main body area C.

[0060] In this embodiment, the blocking structure 11 is an arc-shaped drainage groove 112, and the center of the arc-shaped drainage groove 112 is on the side of the second main body area C. When the inkjet printing layer 5 flows to the blocking structure 11, the inkjet printing layer 5 flows to the outside of the module cutting road 6 along the penetration direction of the drainage groove 112 in the first direction X, thereby accommodating the inkjet printing layer 5 and draining it to an area with less harm or no harm. In addition, a blocking groove 12 is also provided on the side of the drainage groove 112 close to the second main body area C as a second protection measure to more effectively prevent the problem of film layer anti-arching phenomenon caused by the overflow of the inkjet printing layer 5 and the flow of liquid coating to the second main body area C in the module bending process step.

[0061] In this embodiment, the more the number of drainage grooves 112, the lower the probability of overflow risk of the product. The number of drainage grooves 112 can be 1, 2, 3 or more, which can be set according to the actual width of the blocking area B. The width of the drainage groove 112 can be the same as the width of the blocking groove 12, or slightly larger or smaller than the width of the blocking groove 12. In order to ensure the strength of the wiring circuit board area b, the drainage groove 112 should not be designed too wide. In an example, the width of the drainage groove 112 is 0.5-3mm (millimeter). It can be understood that since different products have different wiring circuit board areas b, the size of the blocking structure 11 in this application is only an example and is not used to limit the protection scope of this application. The size of the blocking structure 11 in the actual scene can be set according to the size of the actual product. In actual production, drainage grooves of different numbers, widths and curvatures can be set according to actual needs, as long as the blocking effect on the inkjet printing layer 5 can be achieved. The width of the blocking groove 12 can refer to the width of the blocking groove 12 in the relevant technology, and is not specifically limited in this application.

[0062] In some embodiments of the present application, Figure 4 and Figure 5 As shown, the wiring circuit board area b includes: a protective layer 1, an interlayer insulating layer 3, a bottom insulating layer 4, a first touch metal layer 21, a second touch metal layer 22, a source and drain layer 23 and an inkjet printed layer 5; the first touch metal layer 21 is arranged on one side of the bottom insulating layer 4, the interlayer insulating layer 3 is arranged on the side of the first touch metal layer 21 away from the bottom insulating layer 4, the second touch metal layer 22 is arranged on the side of the interlayer insulating layer 3 away from the bottom insulating layer 4, the protective layer 1 is arranged on the side of the second touch metal layer 22 away from the bottom insulating layer 4, and the inkjet printed layer 5 is arranged on the side of the protective layer 1 away from the bottom insulating layer 4; the blocking structure 11 and the blocking groove 12 are arranged in the protective layer 1 of the blocking area B. The second touch metal layer 22 is isolated in the blocking area B, and the protective layer 1 in the blocking area B contacts the interlayer insulating layer 3; the interlayer insulating layer 3 in the first main area A and the second main area C is provided with a through hole 31, and the first touch metal layer 21 is electrically connected to the second touch metal layer 22 through the through hole 31, and the second touch metal layer 22 is electrically connected to the source and drain layer 23 through the through hole 31.

[0063] The source and drain layer 23 is buried in the bottom insulating layer 4 of the second main body area C. The bottom insulating layer 4 in the second main body area C is provided with an opening structure. The first touch metal layer 21 extends into the second main body area C and is cut off at the opening structure. The source and drain layer 23 contacts the interlayer insulating layer 3 at the opening structure. The second touch metal layer is electrically connected to the source and drain through the through hole in the opening structure.

[0064] In this embodiment, the second touch metal layer 22 is isolated in the barrier region B, so the protective layer 1 in the barrier region B is in direct contact with the interlayer insulating layer 3, which avoids the problem of metal corrosion caused by the second metal layer 22 being directly exposed to the air due to the barrier structure 11 penetrating the protective layer 1 along the thickness direction of the protective layer 1 in the barrier region B. Since the first touch metal layer 21 and the second touch metal layer 22 and the second touch metal layer 22 and the source and drain electrode layer 23 are isolated by the interlayer insulating layer 3, a through hole 31 is provided on the interlayer insulating layer 3, so that the first touch metal layer 21 and the second touch metal layer 22 and the second touch metal layer 22 and the source and drain electrode layer 23 can be electrically connected through the through hole 31.

[0065] In some embodiments of the present application, Figure 4 and Figure 5 As shown, the through hole 31 includes: a first through hole 311, a second through hole 312 and a third through hole 313; the first through hole 311 is arranged at a position of the interlayer insulating layer 3 of the first main body area A close to the blocking area B; the second through hole 312 is arranged at a position of the interlayer insulating layer 3 of the second main body area C close to the blocking area B; the third through hole 313 is arranged at a position of the interlayer insulating layer 3 in the opening structure, and is located on a side of the second through hole 312 away from the display area a; the first touch metal layer 21 in the first main body area A is electrically connected to the second touch metal layer 22 in the first main body area A through the first through hole 311; the first touch metal layer 21 in the second main body area C is electrically connected to the second touch metal layer 22 in the second main body area C through the second through hole 312, and the second touch metal layer 22 in the second main body area C is electrically connected to the source and drain layer 23 in the second main body area C through the third through hole 313.

[0066] In this embodiment, the number of through holes 31 of the interlayer insulating layer 3 is 3, namely, the first through hole 311, the second through hole 312 and the third through hole 313. Among them, the first through hole 311 is arranged at the position of the interlayer insulating layer 3 of the first main body area A close to the barrier area B, the second through hole 312 is arranged at the position of the interlayer insulating layer 3 of the second main body area C close to the barrier area B, and the third through hole 313 is arranged at the position of the interlayer insulating layer 3 in the opening structure. The second touch metal layer 22 of the first main body area A is electrically connected to the first touch metal layer 21 at the position of the first main body area A close to the barrier area B through the first through hole 311, and at the same time, the second touch metal layer 22 of the second main body area C is electrically connected to the first touch metal layer 21 at the position of the second main body area C close to the barrier area B through the second through hole 312, thereby ensuring the electrical connection between the first touch metal layer 21 and the second touch metal layer 22, and the second touch metal layer 22 of the second main body area C is also electrically connected to the source and drain electrode layer 23 through the third through hole 313. During this process, the second touch metal layer 22 forms a partition at the position of the blocking area B, which prevents metal corrosion caused by contact with air while ensuring electrical connection between circuits.

[0067] In the second embodiment of the present application, Figure 6 and Figure 7 As shown, Figure 6 A cross-sectional schematic diagram of a wiring circuit board area of ​​a display screen module provided in a second embodiment of the present application, Figure 7 for Figure 6 A top view of the display screen module in FIG. For easy observation, Figure 7 The protection layer 1 covering the side of the second touch metal layer 22 away from the bottom insulating layer 4 is not shown.

[0068] The blocking structure 11 of the blocking area B is a columnar recessed structure 111. A plurality of columnar recessed structures 111 are arranged at intervals along the first direction X to form a plurality of columnar recessed rows 113, and the columnar recessed structures 111 between two adjacent columnar recessed rows 113 are arranged alternately in the second direction Y. The length of the columnar recessed structure 111 in the first direction is not less than the gap 13 between two adjacent columnar recessed structures in the same columnar recessed row 113; in two adjacent columnar recessed rows 113, the center line 141 of the columnar recessed structures in one row is collinear with the center line 142 of the gap between two adjacent columnar recessed structures in the other row.

[0069] In this embodiment, the blocking structure 11 is a columnar recessed structure 111. When the inkjet printed layer 5 flows to the blocking structure 11, a portion of the inkjet printed layer 5 flows into the columnar recessed structure 111 and is blocked and contained by the columnar recessed structure 111. At the same time, another portion of the inkjet printed layer 5 is blocked by the staggered walls formed by the columnar recessed rows 113, thereby changing the flow direction and achieving the effect of slowing down the flow rate of the inkjet printed layer 5. It can be understood that in the embodiment of the present application, the columnar recessed structures 111 between two adjacent rows of columnar recessed rows 113 are staggered in the second direction Y, which means that in the column direction, the columnar recessed structures 111 of one row of columnar recessed rows 113 are aligned with the gaps of the columnar recessed structures 111 of another row of columnar recessed rows 113, for example Figure 7 As shown. In addition, a blocking groove 12 is also provided on the side of the columnar recessed structure 111 close to the second main body area C, forming a second layer of protection measures, which more effectively prevents the problem of film layer back-arching during the module bending process step caused by the overflow of the inkjet printing layer 5 and the flow of liquid coating to the second main body area C. Moreover, compared with the drainage groove 112, when the blocking structure 11 adopts the columnar recessed structure 111, the strength of the wiring circuit board area b is higher, which can effectively reduce the situation where the blocking area B is broken due to the bending of the Bending area.

[0070] At the same time, in the process of the liquid coating flowing along a straight line through the first columnar recessed row 113 and flowing toward the second columnar recessed row 113, since the length of the columnar recessed structure 111 in the first direction is not less than the gap 13 between two adjacent columnar recessed structures in the same columnar recessed row 113; in two adjacent columnar recessed rows 113, the center line 141 of the columnar recessed structures in one row is colinear with the center line 142 of the gap between two adjacent columnar recessed structures in the other row, the liquid coating will inevitably collide with the wall of the columnar recessed structure 111 in the second columnar recessed row 113, thereby achieving the deceleration and wave absorbing effect on the liquid coating.

[0071] In this embodiment, the more the number of columnar recessed structures 111 is, the lower the probability of overflow risk of the product is. The width of the columnar recessed structure 111 is 0.5-3 mm (millimeter). It can be understood that since different products have different wiring circuit board areas b, the size of the blocking structure 11 in this application is only an example and is not used to limit the scope of protection of this application. The size of the blocking structure 11 in the actual scene can be set according to the size of the actual product. At the same time, the columnar recessed structure 111 can also adopt different shapes, such as triangular or circular columnar structures. In actual production, different quantities, widths and shapes can be set according to actual needs, as long as the blocking effect on the inkjet printing layer 5 can be achieved.

[0072] The display screen module in this embodiment is also applicable to the technical solutions in the aforementioned embodiments, and the technical effects achieved are the same, so no further elaboration is made here.

[0073] The present application also provides a method for preparing a display screen module, which is used to prepare the display screen module described in any of the above embodiments, and the preparation method includes: obtaining a pre-processed display screen module, the pre-processed display screen module includes: a bottom insulating layer 4, an interlayer insulating layer 3, a first touch metal layer 21, a second touch metal layer 22, a source and drain layer 23 and a protective layer 1; etching the protective layer 1 in the blocking area B of the wiring circuit board area b to form a blocking structure 11 and a blocking groove 12; forming an inkjet printing layer 5 on the side of the protective layer 1 away from the bottom insulating layer 4; and performing subsequent preparation processes.

[0074] In this embodiment, a blocking area B having a blocking structure 11 and a blocking groove 12 is formed on the protective layer 1. When the liquid coating passes through the blocking area B, the blocking structure 11 and the blocking groove 12 are used to block and place the liquid, and change the flow direction of the liquid coating to form a double blockage, thereby slowing down the flow speed of the liquid coating and changing the flow direction, further improving the problem of the film layer arching phenomenon in the module bending process step caused by the liquid coating flowing to the second main area C.

[0075] In some embodiments of the present application, the blocking structure 11 of the blocking area B is a columnar recessed structure 111, and a plurality of columnar recessed structures 111 are arranged at intervals along the first direction X to form a plurality of columnar recessed rows 113, and the columnar recessed structures 111 between two adjacent columns of recessed rows 113 are arranged alternately in the second direction Y. Alternatively, the blocking structure 11 is a drainage groove 112 arranged along the first direction X and penetrating the side wall of the protective layer 1; the drainage groove 112 is in an arc shape.

[0076] The columnar recessed structure 111 and the drainage groove 112 in this embodiment have the same functions as those in the previous embodiments, and will not be described in detail here.

[0077] An embodiment of the present application further provides a display device, comprising the display screen module described in any one of the above embodiments, wherein the Ic pad electrode 7 of the display area a extends to the wiring circuit board area b.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0079] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A display screen module, characterized in that: include: Display area and wiring circuit board area; The wiring circuit board area includes a first main body area, a blocking area and a second main body area; The first direction of the wiring circuit board area is the direction from the first main body area to the second main body area; The second direction of the wiring circuit board area is perpendicular to the first direction; The first main body area is arranged on a side of the wiring circuit board area close to the display area; the blocking area is arranged on a side of the first main body area away from the display area; and the second main body area is arranged on a side of the blocking area away from the first main body area; The blocking area includes a blocking structure and a blocking groove, wherein the blocking structure is arranged on a side close to the first main body area, and the blocking groove is arranged on a side of the blocking structure close to the second main body area; The blocking structure and the blocking groove are used to block the inkjet printing layer flowing from the first main body area to the second main body area.

2. The display screen module according to claim 1, characterized in that: The wiring circuit board area also includes: A protective layer, an interlayer insulating layer, a bottom insulating layer, a first touch metal layer, a second touch metal layer, a source and drain electrode layer, and an inkjet printing layer; The first touch metal layer is arranged on one side of the bottom insulating layer, the interlayer insulating layer is arranged on the side of the first touch metal layer away from the bottom insulating layer, the second touch metal layer is arranged on the side of the interlayer insulating layer away from the bottom insulating layer, the protective layer is arranged on the side of the second touch metal layer away from the bottom insulating layer, and the inkjet printing layer is arranged on the side of the protective layer away from the bottom insulating layer; The blocking structure and the blocking groove are arranged in the protection layer of the blocking area.

3. The display screen module according to claim 2, characterized in that: The second touch metal layer is isolated in the blocking area, and the protection layer in the blocking area is in contact with the interlayer insulating layer; The interlayer insulating layers in the first main body region and the second main body region are provided with through holes, the first touch metal layer is electrically connected to the second touch metal layer through the through holes, and the second touch metal layer is electrically connected to the source and drain electrode layer through the through holes.

4. The display screen module according to claim 3, characterized in that: The source and drain layer is buried in the bottom insulating layer of the second main body region, and the bottom insulating layer in the second main body region is provided with an opening structure. The first touch metal layer extends into the second main body region and is cut off at the opening structure. The source and drain layer contacts the interlayer insulating layer at the opening structure, and the second touch metal layer is electrically connected to the source and drain through the through hole in the opening structure.

5. The display screen module according to claim 4, characterized in that: The through holes include: a first through hole, a second through hole and a third through hole; The first through hole is arranged at a position of the interlayer insulating layer of the first main region close to one side of the blocking region; The second through hole is arranged at a position of the interlayer insulating layer of the second main region close to one side of the blocking region; The third through hole is disposed at the position of the interlayer insulating layer in the opening structure and is located on a side of the second through hole away from the display area; The first touch metal layer in the first body area is electrically connected to the second touch metal layer in the first body area through the first through hole; the first touch metal layer in the second body area is electrically connected to the second touch metal layer in the second body area through the second through hole, and the second touch metal layer in the second body area is electrically connected to the source and drain layer in the second body area through the third through hole.

6. The display screen module according to claim 1, characterized in that: The blocking structure of the blocking area is a columnar recessed structure.

7. The display screen module according to claim 6, characterized in that: A plurality of columnar recess structures are arranged at intervals along the first direction to form a plurality of columnar recess rows, and the columnar recess structures between two adjacent columns of the columnar recess rows are arranged alternately in the second direction.

8. The display screen module according to claim 7, characterized in that: The length of the columnar recessed structure in the first direction is not less than the gap between two adjacent columnar recessed structures in the same columnar recessed row; In two adjacent rows of columnar recesses, a center line of the columnar recess structures in one row is collinear with a center line of the spaces between two adjacent columnar recess structures in the other row.

9. The display screen module according to claim 2, characterized in that: The blocking structure is a drainage groove arranged along the first direction and penetrating the side wall of the protective layer; the drainage groove is in an arc shape.

10. The display screen module according to claim 9, characterized in that: The center of the drainage groove is located in the second main body area.

11. A method for preparing a display screen module, characterized in that: include: Obtaining a pre-processed display screen module, wherein the pre-processed display screen module comprises: a bottom insulating layer, an interlayer insulating layer, a first touch metal layer, a second touch metal layer, a source-drain electrode layer, and a protective layer; Etching the protective layer in the blocking area of ​​the wiring circuit board area to form a blocking structure and a blocking groove; forming an inkjet printing layer on a side of the protective layer away from the bottom insulating layer; Perform subsequent preparation processes.

12. The preparation method according to claim 11, characterized in that: The blocking structure of the blocking area is a columnar recessed structure, a plurality of columnar recessed structures are arranged at intervals along a first direction to form a plurality of columnar recessed rows, and the columnar recessed structures between two adjacent columns of the columnar recessed rows are arranged alternately in a second direction.

13. The preparation method according to claim 11, characterized in that: The blocking structure is a drainage groove arranged along the first direction and penetrating the side wall of the protective layer; the drainage groove is in an arc shape.

14. A display device, characterized in that: A display screen module comprising any one of claims 1 to 10.

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