Display module, display device and driving method thereof

Abstract

The invention discloses a display module, a display device and a driving method thereof. The display module comprises a display panel, the display panel is provided with a display area, the display area comprises a first area and a second area, the first area and the second area are arranged in the first direction, and the first area and the second area are connected; the touch layer is located on the display side of the display panel and at least located in the first area; a support member located on a back side of the display panel; the supporting piece comprises a first supporting part and a second supporting part, and the first supporting part corresponds to the first area and can support the first area; the second supporting part corresponds to the second area and can support the second area; the modulus of the first supporting part is greater than that of the second supporting part; the first area and the first supporting part can be wound on a curved surface of a first radius, and the second area and the second supporting part can be wound on a curved surface of a second radius; the first radius is greater than the second radius.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the field of display technology, and specifically relate to a display module, a display device and a driving method thereof. Background Art

[0002] OLED (Organic Light-Emitting Diode) display screens have attracted widespread attention due to their advantages such as self-luminescence, low power consumption, lightness, flexibility, bright colors, high contrast, and fast response rate. Summary of the invention

[0003] In a first aspect, an embodiment of the present disclosure provides a display module having a display area, wherein the display area includes a first area and a second area, the first area and the second area are arranged along a first direction, and the first area and the second area are connected;

[0004] Wherein, the display module comprises: a display panel,

[0005] A touch layer, located on the display side of the display panel and at least in the first area;

[0006] A support member, located at the back side of the display panel;

[0007] The support member includes a first support portion and a second support portion,

[0008] The first supporting portion is located in the first area and can support the first area;

[0009] The second supporting portion is located in the second area and can support the second area;

[0010] The modulus of the first support portion is greater than the modulus of the second support portion;

[0011] The first region may be rolled up on a curved surface of a first radius, and the second region may be rolled up on a curved surface of a second radius; the first radius is greater than the second radius.

[0012] In some embodiments, the first region includes at least one third region and at least one fourth region,

[0013] The third areas and the fourth areas are alternately arranged along the first direction, and any adjacent third areas and fourth areas are connected;

[0014] The first supporting portion includes at least one first sub-portion and at least one second sub-portion,

[0015] The first sub-section is located in the third area and can support it;

[0016] The second sub-section is located in the fourth area and can support it;

[0017] The modulus of the first subsection is greater than the modulus of the second subsection;

[0018] The third region may be rolled up on a curved surface of a third radius, and the fourth region may be rolled up on a curved surface of a fourth radius; the third radius is greater than the fourth radius.

[0019] In some embodiments, the fourth radius is greater than the second radius;

[0020] The modulus of the second sub-portion is greater than the modulus of the second support portion.

[0021] In some embodiments, the first support portion includes at least one support layer.

[0022] In some embodiments, the first sub-section includes a first supporting layer and a second supporting layer, and the first supporting layer and the second supporting layer are sequentially stacked in a direction away from the display panel;

[0023] The second sub-section includes a third supporting layer and a fourth supporting layer, wherein the third supporting layer and the fourth supporting layer are sequentially stacked in a direction away from the display panel;

[0024] The first supporting portion further includes a connecting layer located between the first supporting layer and the second supporting layer and between the third supporting layer and the fourth supporting layer, the connecting layer being connected to the first supporting layer and the second supporting layer respectively, and the connecting layer being connected to the third supporting layer and the fourth supporting layer respectively.

[0025] In some embodiments, the display area further includes a fifth area, which is located between the first area and the second area and is connected to the first area and the second area respectively;

[0026] The support member further includes a third support portion,

[0027] The third supporting portion is located in the fifth area and can support the fifth area;

[0028] The modulus of the third supporting portion is greater than that of the second supporting portion and smaller than that of the first supporting portion, and the modulus of the third supporting portion gradually decreases along a direction from the first region to the second region.

[0029] In some embodiments, the touch layer includes a first portion and a second portion, the first portion is located in the first area, and the second portion is located in the second area;

[0030] The first part includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer are sequentially stacked in a direction away from the display panel, and a first insulating layer is arranged between the first conductive layer and the second conductive layer;

[0031] The second portion includes a third conductive layer located at the same layer as the first conductive layer.

[0032] In some embodiments, the touch layer includes a first portion and a second portion, the first portion includes at least one third portion and at least one fourth portion;

[0033] The third portion is located in the third area, the fourth portion is located in the fourth area, and the second portion is located in the second area;

[0034] The third portion includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer are sequentially stacked in a direction away from the display panel, and a first insulating layer is disposed between the first conductive layer and the second conductive layer;

[0035] The second portion includes a third conductive layer located at the same layer as the first conductive layer;

[0036] The fourth portion includes a fourth conductive layer located in the same layer as the first conductive layer.

[0037] In some embodiments, a plurality of openings are formed in the first sub-section.

[0038] The second sub-section is provided with a plurality of openings.

[0039] The second support portion is provided with a plurality of openings.

[0040] The opening density in the first subsection is less than the opening density in the second subsection;

[0041] The opening density in the second sub-section is lower than the opening density in the second supporting section.

[0042] In some embodiments, the shape of the opening includes a strip shape,

[0043] The length directions of the openings in the first sub-portion, the second sub-portion and the second supporting portion are parallel to each other;

[0044] The length directions of the openings in the first sub-portion, the second sub-portion, and the second supporting portion intersect with the first direction.

[0045] In some embodiments, the shape of the first supporting layer includes a plane shape, and a plurality of first openings are formed in the second supporting layer;

[0046] The third supporting layer is provided with a plurality of second openings, and the fourth supporting layer is provided with a plurality of third openings;

[0047] The shapes of the first opening, the second opening and the third opening include strip shapes,

[0048] The length directions of the first opening, the second opening and the third opening are parallel to each other and intersect with the first direction;

[0049] The orthographic projections of the second openings and the third openings on the display panel are alternately arranged in sequence along the first direction.

[0050] In some embodiments, the first support portion has a plurality of openings.

[0051] The second support portion is provided with a plurality of openings.

[0052] The third support portion is provided with a plurality of openings.

[0053] The opening density of the third support portion is greater than the opening density of the first support portion and less than the opening density of the second support portion;

[0054] Along the direction from the first area to the second area, the opening density of the third supporting portion gradually increases.

[0055] In some embodiments, the material of the support member includes any one of stainless steel, aluminum alloy, carbon fiber, and polymer material.

[0056] In some embodiments, the second conductive layer includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of first bridge portions.

[0057] The plurality of first electrodes are arranged in an array, and the plurality of second electrodes are arranged in an array;

[0058] When the first electrode is located in an odd row, the second electrode is located in an even row; when the first electrode is located in an even row, the second electrode is located in an odd row; when the first electrode is located in an odd column, the second electrode is located in an even column; when the first electrode is located in an even column, the second electrode is located in an odd column;

[0059] The first bridge portion is located between any two adjacent first electrodes along a row direction of the array, and the first bridge portion is connected to the two adjacent first electrodes;

[0060] The first conductive layer includes a plurality of second bridge portions;

[0061] The orthographic projection of the second bridge portion on the display panel is located between the orthographic projections of any two adjacent second electrodes along the column direction of the array on the display panel, and the second bridge portion is connected to the two adjacent second electrodes;

[0062] The first bridge portion and the second bridge portion are spatially intersected;

[0063] Each row of the first electrodes is connected to a first signal line, and each column of the second electrodes is connected to a second signal line.

[0064] In some embodiments, the third conductive layer includes a plurality of third electrodes and a plurality of fourth electrodes, a plurality of third signal lines and a plurality of fourth signal lines;

[0065] The plurality of third electrodes are arranged in an array, and the plurality of fourth electrodes are arranged in an array;

[0066] When the third electrode is located in an odd row, the fourth electrode is located in an even row; when the third electrode is located in an even row, the fourth electrode is located in an odd row; when the third electrode is located in an odd column, the fourth electrode is located in an even column; when the third electrode is located in an even column, the fourth electrode is located in an odd column;

[0067] Each column of the third electrodes is connected to one of the third signal lines;

[0068] An odd number or an even number of the fourth electrodes in each column are connected to one of the third signal lines; an even number or an odd number of the fourth electrodes in each column are connected to one of the fourth signal lines;

[0069] The fourth signal line and the third signal line connected to the third electrode are parallel to each other, and the extending direction thereof crosses the first direction;

[0070] A portion of the third signal line connected to the fourth electrode is parallel to the fourth signal line, another portion of the third signal line forms an angle greater than 0° with an extension direction of the fourth signal line, and the another portion of the third signal line intersects the first direction;

[0071] The orthographic projections of the third signal line and the fourth signal line on the display panel do not overlap;

[0072] The fourth conductive layer has the same structure as the third conductive layer.

[0073] In some embodiments, the orthographic projection shape of the third electrode on the display panel includes any one of a rectangle, a polygon, a regular polygon, an ellipse, and a circle;

[0074] The orthographic projection shape of the fourth electrode on the display panel includes any one of a rectangle, a polygon, a regular polygon, an ellipse, and a circle;

[0075] The length direction of the maximum radial dimension portion of the orthographic projection of the third electrode on the display panel is parallel to the fourth signal line;

[0076] A length direction of a maximum radial dimension portion of an orthographic projection of the fourth electrode on the display panel is parallel to the fourth signal line.

[0077] In a second aspect, an embodiment of the present disclosure further provides a display device, which includes the above-mentioned display module;

[0078] Also includes a scroll, located at a side of the second area of ​​the display module away from the first area, the scroll having a curved surface of a first radius and a curved surface of a second radius, the first radius being greater than the second radius;

[0079] The display module can be rolled up on the rolling shaft, and the second area can be rolled up on the curved surface of the second radius, and the first area can be rolled up on the curved surface of the first radius;

[0080] The axis of the reel intersects with a first direction in which the first regions and the second regions are arranged.

[0081] In some embodiments, the reel comprises a cylindrical shaft and a cylindrical shaft, the cylindrical shaft is located in the cylindrical shaft, and the axes of the cylindrical shaft and the cylindrical shaft are parallel.

[0082] The cross-sectional shape of the column shaft includes a circle; the cross-sectional shape of the barrel shaft includes an ellipse;

[0083] The second region may be wound around the cylindrical shaft,

[0084] The first region may be wrapped around an outer surface of the barrel shaft facing away from the cylindrical axis;

[0085] The outer surface of the cylindrical shaft comprises a first surface area and a second surface area, the first surface area and the second surface area are connected, the curvature radius of the first surface area is greater than the curvature radius of the second surface area, and the curvature radius of the second surface area is greater than the cross-sectional radius of the cylindrical shaft;

[0086] The third area among the first areas may be rolled up on the first surface area, and the fourth area among the first areas may be rolled up on the second surface area.

[0087] In some embodiments, the length directions of the openings in the first sub-portion, the second sub-portion, and the second supporting portion of the display module are parallel to the axis of the scroll.

[0088] In a third aspect, an embodiment of the present disclosure further provides a driving method of the above-mentioned display device, which includes: when the display module in the display device is displayed in an unfolded state, performing touch driving on a first part of a touch layer in the display module;

[0089] Touch driving is performed or not performed on the second portion of the touch layer.

[0090] In some embodiments, when the display module is displayed in the unfolded state, the third part of the first part is touch-driven;

[0091] Touch driving is performed or not performed on the second part and a fourth part of the first part.

[0092] The display module provided by the embodiment of the present disclosure allows the first area to be rolled up on a curved surface of a first radius, and the second area to be rolled up on a curved surface of a second radius, and the first radius is greater than the second radius. When the display module is rolled up 360° or more, the strain accumulation of each film layer in the display module as the number of rolling turns increases can be effectively reduced, thereby improving the rolling performance of the display module; by allowing the modulus of the first supporting portion to be greater than the modulus of the second supporting portion, during the rolling and unfolding process of the display module, the supporting performance of the first supporting portion for the first area is higher than the supporting performance of the second supporting portion for the second area, and the touch function is integrated at least in the first area, thereby improving the press touch operation performance of the first area.

[0093] The display device provided by the embodiment of the present disclosure is configured such that the scroll has a curved surface with a first radius and a curved surface with a second radius, wherein the first radius is greater than the second radius. Since the first area is rolled up on the curved surface with the first radius and the second area is rolled up on the curved surface with the second radius, when the display module in the display device is rolled up by 360° or more, the strain accumulation of each film layer in the display module as the number of rolling turns increases can be effectively reduced, thereby improving the rolling performance of the display module. At the same time, since the modulus of the first supporting portion in the display device is greater than the modulus of the second supporting portion, during the rolling and unfolding process of the display module, the supporting performance of the first supporting portion for the first area is higher than the supporting performance of the second supporting portion for the second area, thereby integrating the touch function at least in the first area, thereby improving the press touch operation performance of the first area. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing detailed example embodiments with reference to the accompanying drawings, in which:

[0095] Figure 1a It is a curling schematic diagram of a curling display module in the related art.

[0096] Figure 1b The relevant technology shows the curling strain accumulation curve of the transparent optical adhesive layer in the module as the curling number increases.

[0097] Figure 2a It is a top view schematic diagram of a display module in an embodiment of the present disclosure.

[0098] Figure 2b For along Figure 2a Section view along the AA' cutting line.

[0099] Figure 2c For along Figure 2a A sectional view with BB' cutting line in the figure.

[0100] Figure 2d For along Figure 2a Another sectional view of the BB' section line.

[0101] Figure 3a It is a partial top view schematic diagram of a support member in an embodiment of the present disclosure.

[0102] Figure 3b It is a partial top view schematic diagram of another supporting member in an embodiment of the present disclosure.

[0103] Figure 3c It is a partial top view schematic diagram of another supporting member in an embodiment of the present disclosure.

[0104] Figure 3d It is a partial top view schematic diagram of another supporting member in the embodiment of the present disclosure.

[0105] Figure 4a A top view of the structure of a touch layer in a display module according to an embodiment of the present disclosure.

[0106] Figure 4b For along Figure 4a Structural section view of the CC' section line.

[0107] Figure 4c Another structural top view of the touch layer in the display module according to the embodiment of the present disclosure.

[0108] Figure 4d It is a top view of another structure of the touch layer in the display module according to the embodiment of the present disclosure.

[0109] Figure 4e It is a top view of another structure of the touch layer in the display module according to the embodiment of the present disclosure.

[0110] Figure 4f FIG. 4 is a top view of another display module in an embodiment of the present disclosure.

[0111] Figure 5a It is a schematic diagram of the structure of the scroll in the embodiment of the present disclosure.

[0112] Figure 5b It is a schematic cross-sectional view of the scroll perpendicular to its axial direction in the embodiment of the present disclosure.

[0113] Figure 6 It is a structural schematic diagram of the support member track sliding structure in the embodiment of the present disclosure. DETAILED DESCRIPTION

[0114] In order to enable those skilled in the art to better understand the technical solution of the embodiments of the present disclosure, a display module, a display device and a driving method thereof provided by the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0115] The embodiments of the present disclosure will be described more fully below with reference to the accompanying drawings, but the embodiments shown may be embodied in different forms and should not be construed as being limited to the embodiments set forth in the present disclosure. On the contrary, the purpose of providing these embodiments is to make the present disclosure thorough and complete and to enable those skilled in the art to fully understand the scope of the present disclosure.

[0116] The embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings have schematic properties, and the shapes of the regions shown in the drawings illustrate the specific shapes of the regions, but are not intended to be limiting.

[0117] In the related art, refer to Figure 1a , is a curling schematic diagram of a curling display module in the related art; Figure 1b The curling strain accumulation curve of the transparent optical adhesive layer in the display module of the related art as the curling number increases; the curling degree of the curled display product (such as OLED display product) is ≥360°. As the curling degree increases, the strain of each film layer in the display product accumulates, and the risk of separation failure between film layers increases. For example, in the curled display module 13, as the curling number increases, the strain of each film layer in the display module 13 gradually accumulates. Figure 1b As shown, the principal strain of the transparent optical adhesive layer between the display panel and the cover plate in the display module 13 is 122% after the first winding, and the principal strain is 133.17% after three windings. It can be seen that with the increase in the number of windings, the strain of the film material has a cumulative increase effect, and the strain accumulation effect causes the strain of the film layer to increase. Therefore, the support member located on the back side of the display panel in the rolled display module 13 and supporting it can only use a low modulus (such as 0.5-3MPa) support member, which makes it difficult to perform operations such as pressing and touching the display module when it is in the unfolded state.

[0118] In order to solve the problems in the related art, in a first aspect, the present disclosure provides a display module, referring to Figure 2a and Figure 2b , Figure 2a is a top view schematic diagram of a display module in an embodiment of the present disclosure; Figure 2b For along Figure 2a A cross-sectional view along the AA' section line; wherein the display module comprises: wherein the display module has a display area 100, the display area 100 comprises a first area 101 and a second area 102, the first area 101 and the second area 102 are arranged along a first direction X, and the first area 101 and the second area 102 are connected; the display module comprises a display panel 1, a touch layer 3, located on the display side of the display panel 1, and at least located in the first area 101; a support member 2, located on the back side of the display panel 1; the support member 2 comprises a first support portion 21 and a second support portion 22, the first support portion 21 is located in the first area 101, and can form a support therefor; the second support portion 22 is located in the second area 102, and can form a support therefor; the modulus of the first support portion 21 is greater than the modulus of the second support portion 22; the first area 101 can be rolled on a curved surface of a first radius, and the second area 102 can be rolled on a curved surface of a second radius; the first radius is greater than the second radius.

[0119] The display module is a flexible OLED display module, which can be wound on a reel. The second area 102 can be wound on a reel with a smaller radius or on an inner ring with a smaller radius of the reel, and the first area 101 can be wound on a reel with a larger radius or on an outer ring with a larger radius of the reel. Modulus refers to the ratio of stress to strain of a material under stress, and modulus is a physical quantity that measures the material's ability to resist deformation.

[0120] In this embodiment, by making the first area 101 rolled up on a curved surface of a first radius, and the second area 102 rolled up on a curved surface of a second radius, and the first radius is greater than the second radius, when the display module is rolled up 360° or more, the strain accumulation of each film layer in the display module as the number of curling turns increases can be effectively reduced, thereby improving the curling performance of the display module; by making the modulus of the first support portion 21 greater than the modulus of the second support portion 22, during the curling and unfolding process of the display module, the supporting performance of the first support portion 21 for the first area 101 is higher than the supporting performance of the second support portion 22 for the second area 102, and the touch function is at least integrated in the first area 101, thereby improving the press touch operation performance of the first area 101.

[0121] In some embodiments, the second radius is R1, and the first radius is ≥ 5R1. The modulus of the first support portion 21 is in the range of 50-150 MPa, and the modulus of the second support portion 22 is in the range of 0.5-10 MPa.

[0122] In some embodiments, the second radius R1 has a size range of 3-5 mm, and the first radius is ≥15-30 mm.

[0123] In some embodiments, reference Figure 2c , for along Figure 2a A cross-sectional view of the BB' section line; wherein the first area 101 includes at least one third area 103 and at least one fourth area 104, the third area 103 and the fourth area 104 are alternately arranged along the first direction X, and any adjacent third area 103 and fourth area 104 are connected; the first supporting portion 21 includes at least one first sub-portion 211 and at least one second sub-portion 212, the first sub-portion 211 is located in the third area 103 and can form a support therefor; the second sub-portion 212 is located in the fourth area 104 and can form a support therefor; the modulus of the first sub-portion 211 is greater than the modulus of the second sub-portion 212; the third area 103 can be wound on a curved surface of a third radius, and the fourth area 104 can be wound on a curved surface of a fourth radius; the third radius is greater than the fourth radius.

[0124] The fourth region 104 may be wound on a reel surface with a smaller curvature radius, and the third region 103 may be wound on a reel surface with a larger curvature radius.

[0125] By making the third zone 103 rolled on a curved surface of a third radius, and the fourth zone 104 rolled on a curved surface of a fourth radius, and the third radius being greater than the fourth radius, when the first zone 101 is rolled 360° or more, the strain accumulation of each film layer in the first zone 101 as the number of curling turns increases can be effectively reduced, thereby improving the curling performance of the first zone 101; by making the modulus of the first sub-portion 211 greater than the modulus of the second sub-portion 212, during the curling and unfolding process of the first zone 101, the supporting performance of the first sub-portion 211 for the third zone 103 is higher than the supporting performance of the second sub-portion 212 for the fourth zone 104, thereby further integrating the touch function into the third zone 103 in the first zone 101, thereby improving the press touch operation performance of the third zone 103.

[0126] In some embodiments, the fourth radius is greater than the second radius; and the modulus of the second sub-portion 212 is greater than the modulus of the second support portion 22 .

[0127] In some embodiments, the second radius is R1, the third radius ≥ 5R1, 1.5R1 ≤ fourth radius ≤ 5R1. The modulus of the first sub-portion 211 is in the range of 200-300 MPa, the modulus of the second sub-portion 212 is in the range of 10-100 MPa, and the modulus of the second support portion 22 is in the range of 0.5-10 MPa.

[0128] In some embodiments, reference Figure 2b and Figure 2c , the first supporting portion 21 includes at least one supporting layer.

[0129] In some embodiments, reference Figure 2d , for along Figure 2aAnother cross-sectional view of the BB' section line; the first sub-portion 211 includes a first supporting layer 211A and a second supporting layer 211B, and the first supporting layer 211A and the second supporting layer 211B are stacked in sequence along a direction away from the display panel 1; the second sub-portion 212 includes a third supporting layer 212A and a fourth supporting layer 212B, and the third supporting layer 212A and the fourth supporting layer 212B are stacked in sequence along a direction away from the display panel 1; the first supporting portion 21 also includes a connecting layer 213, which is located between the first supporting layer 211A and the second supporting layer 211B and between the third supporting layer 212A and the fourth supporting layer 212B, the connecting layer 213 is connected to the first supporting layer 211A and the second supporting layer 211B respectively, and the connecting layer 213 is connected to the third supporting layer 212A and the fourth supporting layer 212B respectively.

[0130] In some embodiments, the connection layer 213 is made of adhesive material, such as pressure-sensitive adhesive, etc. The connection layer 213 has certain flexibility and can bond the first support layer 211A and the second support layer 211B together, and bond the third support layer 212A and the fourth support layer 212B together.

[0131] In some embodiments, reference Figure 2d The modulus range of the first sub-section 211 is 300-500 MPa, and the modulus range of the second sub-section 212 is 100-150 MPa.

[0132] In some embodiments, reference Figure 3a , is a partial top view schematic diagram of a support member in an embodiment of the present disclosure; Figure 3b It is a partial top view schematic diagram of another supporting member in an embodiment of the present disclosure; Figure 3c It is a partial top view schematic diagram of another support member in the embodiment of the present disclosure; a plurality of openings 200 are opened in the first sub-section 211, a plurality of openings 200 are opened in the second sub-section 212, a plurality of openings 200 are opened in the second support section 22, and the opening density in the first sub-section 211 is less than the opening density in the second sub-section 212; the opening density in the second sub-section 212 is less than the opening density in the second support section 22.

[0133] With such configuration, it can be achieved that the modulus of the first sub-portion 211 is greater than the modulus of the second sub-portion 212 , and the modulus of the second sub-portion 212 is greater than the modulus of the second support portion 22 .

[0134] In some embodiments, the shape of the opening 200 includes a strip, and the length directions of the openings 200 in the first sub-section 211, the second sub-section 212 and the second supporting section 22 are parallel to each other; the length directions of the openings 200 in the first sub-section 211, the second sub-section 212 and the second supporting section 22 intersect with the first direction X.

[0135] In some embodiments, the length direction of the opening 200 is parallel to the axis of the reel, and the length direction of the opening 200 is perpendicular to the first direction X. This arrangement can enhance the windability of the support member 2 and reduce the strain of the support member 2 during the winding process.

[0136] In some embodiments, reference Figure 2d and Figure 3d , Figure 3d It is a partial top view schematic diagram of another supporting member in the embodiment of the present disclosure; wherein, the shape of the first supporting layer 211A includes a surface shape, and a plurality of first openings 201 are opened in the second supporting layer 211B; a plurality of second openings 202 are opened in the third supporting layer 212A, and a plurality of third openings 203 are opened in the fourth supporting layer 212B; the shapes of the first opening 201, the second opening 202 and the third opening 203 include strips, and the length directions of the first opening 201, the second opening 202 and the third opening 203 are parallel to each other and intersect with the first direction X; the orthographic projections of the second openings 202 and the third openings 203 on the display panel 1 are arranged alternately in sequence along the first direction X.

[0137] In some embodiments, the orthographic projections of the third supporting layer 212A and the fourth supporting layer 212B on the display panel 1 are complementary, that is, a gap (such as an opening) is formed in the third supporting layer 212A, and the orthographic projection of the fourth supporting layer 212B on the display panel 1 coincides with the orthographic projection of the gap on the display panel 1. Such a configuration can ensure the support strength of the second sub-portion 212 to the fourth area 104 on the one hand, and can also ensure the windability of the second sub-portion 212 on the other hand, and reduce the strain of the second sub-portion 212 during the winding process.

[0138] It should be noted that the orthographic projections of the third supporting layer 212A and the fourth supporting layer 212B on the display panel 1 may also partially overlap.

[0139] In some embodiments, the length directions of the first opening 201, the second opening 202 and the third opening 203 are parallel to the axis of the reel, and the length directions of the first opening 201, the second opening 202 and the third opening 203 are perpendicular to the first direction X. Such an arrangement can enhance the windability of the support member 2 and reduce the strain of the support member 2 during the winding process.

[0140] In some embodiments, reference Figure 3bThe display area 100 further includes a fifth area 105, which is located between the first area 101 and the second area 102 and is connected to the first area 101 and the second area 102 respectively; the support member 2 further includes a third support portion 23, which is located in the fifth area 105 and can support it; the modulus of the third support portion 23 is greater than the modulus of the second support portion 22 and less than the modulus of the first support portion 21, and the modulus of the third support portion 23 gradually decreases along the direction from the first area 101 to the second area 102. In this way, a smooth transition of the modulus of the support member 2 along the first direction X can be ensured, thereby ensuring a smooth transition of the curling performance of the support member 2 along the first direction X, and at the same time ensuring a smooth transition of the supporting performance of the support member 2 to different areas in the display area 100 along the first direction X.

[0141] In some embodiments, reference Figure 3a and Figure 3b A plurality of openings are provided in the first support portion 21, a plurality of openings are provided in the second support portion 22, and a plurality of openings are provided in the third support portion 23. The opening density of the third support portion 23 is greater than the opening density of the first support portion 21 and less than the opening density of the second support portion 22. The opening density of the third support portion 23 gradually increases from the first zone 101 to the second zone 102.

[0142] This arrangement ensures that the modulus of the third support portion 23 is greater than the modulus of the second support portion 22 and less than the modulus of the first support portion 21 , while ensuring that the modulus of the third support portion 23 gradually decreases from the first area 101 to the second area 102 .

[0143] In some embodiments, the material of the support member 2 includes any one of stainless steel, aluminum alloy, carbon fiber, and polymer material.

[0144] In some embodiments, reference Figure 2b The touch layer 3 includes a first part 31 and a second part 32, the first part 31 is located in the first area 101, and the second part 32 is located in the second area 102; the first part 31 includes a first conductive layer 311 and a second conductive layer 312, the first conductive layer 311 and the second conductive layer 312 are stacked in sequence in a direction away from the display panel 1, and a first insulating layer 313 is arranged between the two; the second part 32 includes a third conductive layer, which is located in the same layer as the first conductive layer 311.

[0145] Among them, by setting the first part 31 as two overlapping conductive layers, the touch sensitivity of the first part 31 can be guaranteed and the impedance difference during touch can be increased; by setting the second part 32 as one conductive layer, the strain of the second part 32 during the winding process can be reduced, thereby reducing the risk of bending and fracture failure of the second part 32. By making the touch layer 3 part located in the first area 101 and the touch layer 3 part located in the second area 102 adopt different structural designs, during touch, only the first part 31 located in the first area 101 can be touched, thereby improving the press touch operation performance of the first area 101; or the first part 31 located in the first area 101 and the second part 32 located in the second area 102 can be touched, thereby optimizing the touch performance of the touch layer 3.

[0146] In some embodiments, reference Figure 2c and Figure 2d The touch layer 3 includes a first part 31 and a second part 32, the first part 31 includes at least one third part 33 and at least one fourth part 34; the third part 33 is located in the third area 103, the fourth part 34 is located in the fourth area 104, and the second part 32 is located in the second area 102; the third part 33 includes a first conductive layer 311 and a second conductive layer 312, the first conductive layer 311 and the second conductive layer 312 are stacked in sequence in a direction away from the display panel 1, and a first insulating layer 313 is arranged between the two; the second part 32 includes a third conductive layer, which is located in the same layer as the first conductive layer 311; the fourth part 34 includes a fourth conductive layer, which is located in the same layer as the first conductive layer 311.

[0147] By setting the third part 33 in the first part 31 as two overlapping conductive layers, the touch sensitivity of the third part 33 can be guaranteed and the impedance difference during touch can be increased; by setting the second part 32 and the fourth part 34 in the first part 31 as one conductive layer, the strain of the second part 32 and the fourth part 34 during the winding process can be reduced, thereby reducing the risk of bending and fracture failure of the second part 32 and the fourth part 34. By making the touch layer 3 part located in the third area 103 in the first area 101, the touch layer 3 part located in the second area 102, and the touch layer 3 part located in the fourth area 104 in the first area 101 adopt different structural designs, during touch, only the third part 33 located in the third area 103 can be touched, thereby improving the pressing touch operation performance of the third area 103; or the third part 33 located in the third area 103, the second part 32 located in the second area 102, and the fourth part 34 located in the fourth area 104 can all be touched, thereby optimizing the touch performance of the touch layer 3.

[0148] In some embodiments, reference Figure 4a , is a top view of a structure of a touch layer in a display module according to an embodiment of the present disclosure; Figure 4b For along Figure 4a Structural section view of CC' section line;

[0149] Figure 4c Another structural top view of the touch layer in the display module of the embodiment of the present disclosure; Figure 4d A top view of another structure of a touch layer in a display module according to an embodiment of the present disclosure; Figure 4e It is another structural top view of the touch layer in the display module of the embodiment of the present disclosure; wherein, the second conductive layer 312 includes a plurality of first electrodes 41, a plurality of second electrodes 42 and a plurality of first bridge portions 43, wherein the plurality of first electrodes 41 are arranged in an array, and the plurality of second electrodes 42 are arranged in an array; when the first electrodes 41 are located in odd rows, the second electrodes 42 are located in even rows; when the first electrodes 41 are located in even rows, the second electrodes 42 are located in odd rows; when the first electrodes 41 are located in odd columns, the second electrodes 42 are located in even columns; when the first electrodes 41 are located in even columns, the second electrodes 42 are located in odd columns; the first bridge portions 43 are arranged in an array; when the first electrodes 41 are located in odd columns, the second electrodes 42 are located in odd columns; 3 is located between any two adjacent first electrodes 41 along the row direction of the array, and the first bridge portion 43 is connected to the two adjacent first electrodes 41; the first conductive layer 311 includes a plurality of second bridge portions 44; the orthographic projection of the second bridge portion 44 on the display panel 1 is located between the orthographic projections of any two adjacent second electrodes 42 along the column direction of the array on the display panel 1, and the second bridge portion 44 is connected to the two adjacent second electrodes 42; the first bridge portion 43 and the second bridge portion 44 are spatially intersected; each row of the first electrodes 41 is connected to a first signal line 5, and each column of the second electrodes 42 is connected to a second signal line 6.

[0150] The structural arrangement of the first conductive layer 311 and the second conductive layer 312 can realize mutual capacitive touch of the first portion 31 of the touch layer 3 .

[0151] In some embodiments, the third conductive layer includes a plurality of third electrodes 45 and a plurality of fourth electrodes 46, a plurality of third signal lines 7 and a plurality of fourth signal lines 8; the plurality of third electrodes 45 are arranged in an array, and the plurality of fourth electrodes 46 are arranged in an array; when the third electrodes 45 are located in odd rows, the fourth electrodes 46 are located in even rows; when the third electrodes 45 are located in even rows, the fourth electrodes 46 are located in odd rows, and when the third electrodes 45 are located in odd columns, the fourth electrodes 46 are located in even columns; when the third electrodes 45 are located in even columns, the fourth electrodes 46 are located in odd columns; each column of the third electrodes 45 is connected to a third signal line 7; each column of the fourth electrodes 46 is connected to a third signal line 7; An odd number or an even number of the fourth electrodes 46 in each column are connected to a third signal line 7; an even number or an odd number of the fourth electrodes 46 in each column are connected to a fourth signal line 8; the fourth signal line 8 and the third signal line 7 connected to the third electrode 45 are parallel to each other, and their extension direction crosses the first direction X; a part of the third signal line 7 connected to the fourth electrode 46 is parallel to the fourth signal line 8, another part of the third signal line 7 forms an angle greater than 0° with the extension direction of the fourth signal line 8, and another part of the third signal line 8 crosses the first direction X; the orthographic projections of the third signal line 7 and the fourth signal line 8 on the display panel 1 do not overlap; the fourth conductive layer and the third conductive layer have the same structure.

[0152] The extension direction of the fourth signal line 8 and the third signal line 7 connected to the third electrode 45 can be parallel to the axis of the reel. This arrangement can reduce the strain of the fourth signal line 8 and the third signal line 7 connected to the third electrode 45 during the winding process, thereby improving or avoiding the risk of the fourth signal line 8 and the third signal line 7 connected to the third electrode 45 being broken during the winding process. By making the local segment of the third signal line 7 connected to the fourth electrode 46 and the extension direction of the fourth signal line 8 form an angle greater than 0° and intersecting with the first direction X, the third signal line 7 connected to the fourth electrode 46 and the third electrode 45 on the same conductive layer can be prevented from being connected, thereby ensuring that mutual capacitance can be formed between the third electrode 45, the fourth electrode 46 connected to the third signal line 7, and the fourth electrode 46 connected to the fourth signal line 8, thereby realizing mutual capacitance touch of the second part 32 of the touch layer 3 and mutual capacitance touch of the fourth part 34.

[0153] In some embodiments, the orthographic projection shape of the third electrode 45 on the display panel 1 includes any one of a rectangle, a polygon, a regular polygon, an ellipse, and a circle; the orthographic projection shape of the fourth electrode 46 on the display panel 1 includes any one of a rectangle, a polygon, a regular polygon, an ellipse, and a circle; the length direction of the maximum radial dimension part of the orthographic projection of the third electrode 45 on the display panel 1 is parallel to the fourth signal line 8; the length direction of the maximum radial dimension part of the orthographic projection of the fourth electrode 46 on the display panel 1 is parallel to the fourth signal line 8.

[0154] Among them, since the extension direction of the fourth signal line 8 can be parallel to the axis of the winding shaft, by making the length direction of the maximum radial dimension part of the positive projection of the third electrode 45 on the display panel 1 parallel to the fourth signal line 8; the length direction of the maximum radial dimension part of the positive projection of the fourth electrode 46 on the display panel 1 is parallel to the fourth signal line 8, the strain of the maximum radial dimension part of the third electrode 45 and the maximum radial dimension part of the fourth electrode 46 during the winding process can be reduced, thereby improving or avoiding the risk of breakage of the third electrode 45 and the fourth electrode 46 during the winding process.

[0155] In some embodiments, reference Figure 2b-2d In a direction perpendicular to the display panel 1, the display area 100 of the display panel 1 may include: a substrate 10, and a circuit structure layer 20, a light emitting structure layer 30, a packaging structure layer 40 and a touch layer 3 sequentially arranged on the substrate 10. Among them, the circuit structure layer 20 may at least include: a pixel circuit of a plurality of sub-pixels, and the pixel circuit of each sub-pixel may include a plurality of transistors and at least one capacitor. The light emitting structure layer 30 may at least include: a light emitting element of a plurality of sub-pixels.

[0156] In some embodiments, the multiple transistors in the pixel circuit may all be low-temperature polysilicon thin film transistors or oxide thin film transistors. In some embodiments, the multiple transistors in the pixel circuit may be low-temperature polysilicon thin film transistors and oxide thin film transistors. In addition, in this embodiment, the display panel 1 integrates a mutual capacitance touch structure, such as forming an FMLOC (Flexible Multi Layer On Cell) structure.

[0157] In some embodiments, reference Figure 2b-2d , taking each sub-pixel including a thin film transistor 11 and a capacitor 12 as an example for illustration. The circuit structure layer 20 of the display area 100 may include: a semiconductor layer, a first gate metal layer, a second gate metal layer, a first source-drain metal layer, and a second source-drain metal layer arranged on the substrate 10. A first gate insulating layer 111 may be arranged between the semiconductor layer and the first gate metal layer, a second gate insulating layer 112 may be arranged between the first gate metal layer and the second gate metal layer, an interlayer insulating layer 113 may be arranged between the second gate metal layer and the first source-drain metal layer, a first flat layer 114 may be arranged between the first source-drain metal layer and the second source-drain metal layer, and a second flat layer 115 may be arranged on the side of the second source-drain metal layer away from the substrate 10. Among them, the first gate insulating layer 111, the second insulating layer 112, and the interlayer insulating layer 113 may be inorganic insulating layers, and the first flat layer 114 and the second flat layer 115 may be organic insulating layers.

[0158] The semiconductor layer of the display area 100 may include at least: an active layer 210 of the thin film transistor 11. The active layer 210 of the thin film transistor 11 may include: a source region 2101, a drain region 2102, and a channel region 2100 located between the source region 2101 and the drain region 2102. The first gate metal layer may include at least: a gate electrode 116 of the thin film transistor 11, and a first electrode plate 121 of the capacitor 12. The orthographic projection of the gate electrode 116 of the thin film transistor 11 on the substrate 10 may cover the orthographic projection of the channel region 2100 of the active layer 210 on the substrate 10. The second gate metal layer may include at least: a second electrode plate 122 of the capacitor 12. The orthographic projections of the second electrode plate 122 and the first electrode plate 121 of the capacitor 12 on the substrate 10 may at least partially overlap, for example, the two may overlap. The first source-drain metal layer may include at least: a source electrode 117 and a drain electrode 118 of the thin film transistor 11. The interlayer insulating layer 113 may be provided with a plurality of vias (for example, including a first pixel via and a second pixel via) in the display area 100. The interlayer insulating layer 113, the second gate insulating layer 112 and the first gate insulating layer 111 in the first pixel via may be removed to expose at least a portion of the surface of the source region 2101 of the active layer 210; the interlayer insulating layer 113, the second gate insulating layer 112 and the first gate insulating layer 111 in the second pixel via may be removed to expose at least a portion of the surface of the drain region 2102 of the active layer 210. The source electrode 117 of the thin film transistor 11 may be electrically connected to the source region 2101 of the active layer 210 through the first pixel via, and the drain electrode 118 may be electrically connected to the drain region 2102 of the active layer 210 through the second pixel via. The second source-drain metal layer may include at least: a first transfer electrode 231. The first switching electrode 231 can be electrically connected to the drain electrode 118 of the thin film transistor 11 of the pixel circuit through the third pixel via hole opened in the first planar layer 114. The first switching electrode 231 can realize electrical connection between the pixel circuit and the light emitting element.

[0159] In some embodiments, reference Figure 2b-2d, the light emitting structure layer 30 of the display area may include: a pixel definition layer 304 and a plurality of light emitting elements. For example, each light emitting element may include: a stacked anode 301, an organic light emitting layer 302 and a cathode 303. The anode 301 may be disposed on the second flat layer 115 and electrically connected to the first transfer electrode 231 through a fourth pixel via hole opened in the second flat layer 115. The pixel definition layer 304 is disposed on the anode 301 and the second flat layer 115, and the pixel definition layer 304 may be provided with a plurality of pixel openings, and a pixel opening may expose at least a portion of the surface of a corresponding anode 301. At least a portion of the organic light emitting layer 302 may be disposed in a pixel opening and connected to the corresponding anode 301. The cathode 303 may be disposed on the organic light emitting layer 302 and connected to the organic light emitting layer 302. The organic light emitting layer 302 may emit light of a corresponding color under the drive of the anode 301 and the cathode 303. A display isolation column layer may also be disposed on the side of the pixel definition layer 304 away from the substrate 10, and the display isolation column layer may include a plurality of display isolation column layers.

[0160] In some embodiments, reference Figure 2b-2d as well as Figure 4f In the direction perpendicular to the display panel 1, the touch layer 3 of the display area 100 may include: a touch buffer layer (TBL) 501, a first conductive layer 311 (TMA), a first insulating layer (TLD) 313, a second conductive layer 312 (TMB), and a protective layer 503 (TOC) stacked in sequence in a direction away from the display panel 1. For example, the touch buffer layer 501 and the first insulating layer 313 may be inorganic insulating layers, and the protective layer 503 may be an organic insulating layer. Figure 4f The first conductive layer 311 and the second conductive layer 312 are located in the non-pixel opening area in the display area 100, that is, the first conductive layer 311 and the second conductive layer 312 avoid the pixel opening in the pixel definition layer 304 to prevent the patterns of the first conductive layer 311 and the second conductive layer 312 from shading light. Figure 2b-2d The first conductive layer 311 and the second conductive layer 312 may also be in a grid shape, so that the first conductive layer 311 and the second conductive layer 312 may also be arranged in the pixel opening area. The first conductive layer 311 and the second conductive layer 312 are both metal film layers, including but not limited to copper, nickel and other metal film layers.

[0161] In some embodiments, reference Figure 2b-2d The encapsulation structure layer 40 includes a first inorganic layer 401 , an organic layer 402 , and a second inorganic layer 403 which are sequentially stacked in a direction away from the display panel 1 .

[0162] In some embodiments, reference Figure 2b-2dA polarizer 14 , a transparent optical adhesive 15 and a cover plate 16 are also provided on the side of the protective layer 503 facing away from the substrate 10 . The polarizer 14 , the transparent optical adhesive 15 and the cover plate 16 are stacked in sequence in a direction away from the display panel 1 .

[0163] In some embodiments, reference Figure 4f , is a top view schematic diagram of another display module in the embodiment of the present disclosure; each conductive layer in the touch layer 3 can avoid the pixel opening 17, such as being located in the non-pixel opening area to prevent light shielding. The first signal line 5 and the third signal line 7 are led out from the display area 100 to the frame wiring area 106, and are electrically connected to the touch driver chip for transmitting touch sensing signals; the second signal line 6 and the fourth signal line 8 are led out from the display area 100 to the frame wiring area 106, and are electrically connected to the touch driver chip for transmitting touch driving signals.

[0164] The display module provided by the embodiment of the present disclosure allows the first area to be rolled up on a curved surface of a first radius, and the second area to be rolled up on a curved surface of a second radius, and the first radius is greater than the second radius. When the display module is rolled up 360° or more, the strain accumulation of each film layer in the display module as the number of rolling turns increases can be effectively reduced, thereby improving the rolling performance of the display module; by allowing the modulus of the first supporting portion to be greater than the modulus of the second supporting portion, during the rolling and unfolding process of the display module, the supporting performance of the first supporting portion for the first area is higher than the supporting performance of the second supporting portion for the second area, and the touch function is integrated at least in the first area, thereby improving the press touch operation performance of the first area.

[0165] In a second aspect, the present disclosure provides a display device, referring to Figure 2a , Figure 3a , Figure 3b , Figure 3d , Figure 4a , Figure 4c , Figure 4d and Figure 4e , including the display module in the above embodiment; also including a scroll 9, located on the side of the second area 102 of the display module away from the first area 101, the scroll 9 has a curved surface of a first radius and a curved surface of a second radius, the first radius is greater than the second radius; the display module can be rolled up on the scroll 9, and the second area 102 can be rolled up on the curved surface of the second radius, and the first area 101 can be rolled up on the curved surface of the first radius; the axis of the scroll 9 intersects with the first direction X in which the first area 101 and the second area 102 are arranged.

[0166] By making the scroll 9 have a curved surface of a first radius and a curved surface of a second radius, the first radius is greater than the second radius. Since the first area 101 can be rolled up on the curved surface of the first radius and the second area 102 can be rolled up on the curved surface of the second radius, when the display module in the display device is rolled up 360° or more, the strain accumulation of each film layer in the display module as the number of rolling turns increases can be effectively reduced, thereby improving the rolling performance of the display module; at the same time, since the modulus of the first support portion 21 in the display device is greater than the modulus of the second support portion 22, during the rolling and unfolding process of the display module, the supporting performance of the first support portion 21 for the first area 101 is higher than the supporting performance of the second support portion 22 for the second area 102, and the touch function is at least integrated in the first area 101, thereby improving the press touch operation performance of the first area 101.

[0167] In some embodiments, reference Figure 5a , is a schematic diagram of the structure of the scroll in the embodiment of the present disclosure; Figure 5b It is a schematic cross-sectional view of the scroll in the embodiment of the present disclosure, which is perpendicular to its axial direction; the scroll 9 includes a columnar axis 91 and a tubular axis 92, the columnar axis 91 is located in the tubular axis 92, and the axes of the columnar axis 91 and the tubular axis 92 are parallel, and the cross-sectional shape of the columnar axis 91 includes a circle; the cross-sectional shape of the tubular axis 92 includes an ellipse; the second zone 102 can be wound on the columnar axis 91, and the first zone 101 can be wound on the outer surface of the tubular axis 92 away from the columnar axis 91; the outer surface of the tubular axis 92 includes a first surface zone 921 and a second surface zone 922, the first surface zone 921 and the second surface zone 922 are connected, the curvature radius of the first surface zone 921 is larger than the curvature radius of the second surface zone 922, and the curvature radius of the second surface zone 922 is larger than the cross-sectional radius of the columnar axis 91; the third zone 103 in the first zone 101 can be wound on the first surface zone 921, and the fourth zone 104 in the first zone 101 can be wound on the second surface zone 922.

[0168] In some embodiments, the axial surfaces of the cylinder shaft 92 and the column shaft 91 are in contact along the axial direction, and a slit opening is provided at the contact position between the cylinder shaft 92 and the column shaft 91, so that the display module can extend from the surface of the column shaft 91 to the surface of the cylinder shaft 92 through the slit opening, so that the display module can be wound on the column shaft 91 and then extend from the slit opening and wound onto the surface of the cylinder shaft 92.

[0169] In some embodiments, reference Figure 3a-3d , the length direction of the opening 200 in the first sub-portion 211, the second sub-portion 212 and the second support portion 22 in the display module is parallel to the axis of the reel 9. Such an arrangement can enhance the windability of the support member 2 and reduce the strain of the support member 2 during the winding process.

[0170] In some embodiments, reference Figure 6, which is a structural schematic diagram of the support member track sliding structure in the embodiment of the present disclosure; wherein, a support member track sliding structure 18 is set at the end position of the reel 9, and sliding columns 24 are set at the end positions of the two ends of the support member 2 corresponding to the reel 9. The sliding column 24 is embedded in the track sliding structure 18 and can slide along the track sliding structure 18, thereby ensuring the winding radius of the support member 2 wound on the reel 9.

[0171] Based on the above structure of the display device, an embodiment of the present disclosure also provides a driving method for the display device, which includes: when the display module in the display device is displayed in an unfolded state, touch driving the first part of the touch layer in the display module; and performing or not touch driving on the second part of the touch layer.

[0172] In some embodiments, when the display module is displayed in the unfolded state, the third part in the first part is touch-driven; and the second part and the fourth part in the first part are touch-driven or not.

[0173] In some embodiments, when the display module is displayed in a wound state, the third part of the touch layer wound on the outermost circle of the scroll is touch-driven, and the fourth part of the touch layer wound on the outermost circle of the scroll is touch-driven or not.

[0174] The display device provided by the embodiment of the present disclosure is configured such that the scroll has a curved surface with a first radius and a curved surface with a second radius, wherein the first radius is greater than the second radius. Since the first area is rolled up on the curved surface with the first radius and the second area is rolled up on the curved surface with the second radius, when the display module in the display device is rolled up by 360° or more, the strain accumulation of each film layer in the display module as the number of rolling turns increases can be effectively reduced, thereby improving the rolling performance of the display module. At the same time, since the modulus of the first supporting portion in the display device is greater than the modulus of the second supporting portion, during the rolling and unfolding process of the display module, the supporting performance of the first supporting portion for the first area is higher than the supporting performance of the second supporting portion for the second area, thereby integrating the touch function at least in the first area, thereby improving the press touch operation performance of the first area.

[0175] The display device provided in the embodiments of the present disclosure may be any product or component with a display function, such as an OLED panel, an OLED TV, an OLED billboard, a display, a mobile phone, a navigator, or the like.

[0176] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display module, comprising a display area, wherein the display area comprises a first area and a second area, wherein the first area and the second area are arranged along a first direction, and the first area and the second area are connected; in, The display module comprises: a display panel, A touch layer, located on the display side of the display panel and at least in the first area; A support member, located at the back side of the display panel; The support member includes a first support portion and a second support portion, The first supporting portion is located in the first area and can support the first area; The second supporting portion is located in the second area and can support the second area; The modulus of the first support portion is greater than the modulus of the second support portion; The first region may be rolled up on a curved surface of a first radius, and the second region may be rolled up on a curved surface of a second radius; the first radius is greater than the second radius.

2. The display module according to claim 1, wherein: The first region includes at least one third region and at least one fourth region, The third areas and the fourth areas are alternately arranged along the first direction, and any adjacent third areas and fourth areas are connected; The first supporting portion includes at least one first sub-portion and at least one second sub-portion, The first sub-section is located in the third area and can support it; The second sub-section is located in the fourth area and can support it; The modulus of the first subsection is greater than the modulus of the second subsection; The third region may be rolled up on a curved surface of a third radius, and the fourth region may be rolled up on a curved surface of a fourth radius; the third radius is greater than the fourth radius.

3. The display module according to claim 2, wherein: The fourth radius is greater than the second radius; The modulus of the second sub-portion is greater than the modulus of the second support portion.

4. The display module according to claim 2, wherein: The first supporting portion includes at least one supporting layer.

5. The display module according to claim 4, wherein: The first sub-section includes a first supporting layer and a second supporting layer, wherein the first supporting layer and the second supporting layer are sequentially stacked in a direction away from the display panel; The second sub-section includes a third supporting layer and a fourth supporting layer, wherein the third supporting layer and the fourth supporting layer are sequentially stacked in a direction away from the display panel; The first supporting portion further includes a connecting layer located between the first supporting layer and the second supporting layer and between the third supporting layer and the fourth supporting layer, the connecting layer being connected to the first supporting layer and the second supporting layer respectively, and the connecting layer being connected to the third supporting layer and the fourth supporting layer respectively.

6. The display module according to claim 1, wherein: The display area further includes a fifth area, which is located between the first area and the second area and is connected to the first area and the second area respectively; The support member further includes a third support portion, The third supporting portion is located in the fifth area and can support the fifth area; The modulus of the third supporting portion is greater than that of the second supporting portion and smaller than that of the first supporting portion, and the modulus of the third supporting portion gradually decreases along a direction from the first region to the second region.

7. The display module according to claim 1, wherein: The touch layer includes a first portion and a second portion, the first portion is located in the first area, and the second portion is located in the second area; The first part includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer are sequentially stacked in a direction away from the display panel, and a first insulating layer is arranged between the first conductive layer and the second conductive layer; The second portion includes a third conductive layer located at the same layer as the first conductive layer.

8. The display module according to claim 2, wherein: The touch layer includes a first portion and a second portion, the first portion includes at least one third portion and at least one fourth portion; The third portion is located in the third area, the fourth portion is located in the fourth area, and the second portion is located in the second area; The third portion includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer are sequentially stacked in a direction away from the display panel, and a first insulating layer is disposed between the first conductive layer and the second conductive layer; The second portion includes a third conductive layer located at the same layer as the first conductive layer; The fourth portion includes a fourth conductive layer located in the same layer as the first conductive layer.

9. The display module according to claim 3, wherein: The first sub-section is provided with a plurality of openings, The second sub-section is provided with a plurality of openings, The second supporting portion is provided with a plurality of openings. The opening density in the first subsection is less than the opening density in the second subsection; The opening density in the second sub-section is lower than the opening density in the second supporting section.

10. The display module according to claim 9, wherein: The shape of the opening includes a strip shape, The length directions of the openings in the first sub-portion, the second sub-portion and the second supporting portion are parallel to each other; The length directions of the openings in the first sub-portion, the second sub-portion, and the second supporting portion intersect with the first direction.

11. The display module according to claim 5, wherein: The shape of the first supporting layer includes a plane shape, and a plurality of first openings are formed in the second supporting layer; The third supporting layer is provided with a plurality of second openings, and the fourth supporting layer is provided with a plurality of third openings; The shapes of the first opening, the second opening and the third opening include strip shapes, The length directions of the first opening, the second opening and the third opening are parallel to each other and intersect with the first direction; The orthographic projections of the second openings and the third openings on the display panel are alternately arranged in sequence along the first direction.

12. The display module according to claim 6, wherein: The first support portion is provided with a plurality of openings. The second support portion is provided with a plurality of openings. The third support portion is provided with a plurality of openings. The opening density of the third support portion is greater than the opening density of the first support portion and less than the opening density of the second support portion; Along the direction from the first area to the second area, the opening density of the third supporting portion gradually increases.

13. The display module according to claim 1, wherein: The material of the support member includes any one of stainless steel, aluminum alloy, carbon fiber, and polymer material.

14. The display module according to claim 7 or 8, wherein: The second conductive layer includes a plurality of first electrodes, a plurality of second electrodes and a plurality of first bridge portions, The plurality of first electrodes are arranged in an array, and the plurality of second electrodes are arranged in an array; When the first electrode is located in an odd row, the second electrode is located in an even row; when the first electrode is located in an even row, the second electrode is located in an odd row; when the first electrode is located in an odd column, the second electrode is located in an even column; when the first electrode is located in an even column, the second electrode is located in an odd column; The first bridge portion is located between any two adjacent first electrodes along a row direction of the array, and the first bridge portion is connected to the two adjacent first electrodes; The first conductive layer includes a plurality of second bridge portions; The orthographic projection of the second bridge portion on the display panel is located between the orthographic projections of any two adjacent second electrodes along the column direction of the array on the display panel, and the second bridge portion is connected to the two adjacent second electrodes; The first bridge portion and the second bridge portion are spatially intersected; Each row of the first electrodes is connected to a first signal line, and each column of the second electrodes is connected to a second signal line.

15. The display module according to claim 14, wherein: The third conductive layer includes a plurality of third electrodes and a plurality of fourth electrodes, a plurality of third signal lines and a plurality of fourth signal lines; The plurality of third electrodes are arranged in an array, and the plurality of fourth electrodes are arranged in an array; When the third electrode is located in an odd row, the fourth electrode is located in an even row; when the third electrode is located in an even row, the fourth electrode is located in an odd row; when the third electrode is located in an odd column, the fourth electrode is located in an even column; when the third electrode is located in an even column, the fourth electrode is located in an odd column; Each column of the third electrodes is connected to one of the third signal lines; An odd number or an even number of the fourth electrodes in each column are connected to one of the third signal lines; an even number or an odd number of the fourth electrodes in each column are connected to one of the fourth signal lines; The fourth signal line and the third signal line connected to the third electrode are parallel to each other, and the extending direction thereof crosses the first direction; A portion of the third signal line connected to the fourth electrode is parallel to the fourth signal line, another portion of the third signal line forms an angle greater than 0° with an extension direction of the fourth signal line, and the another portion of the third signal line intersects the first direction; The orthographic projections of the third signal line and the fourth signal line on the display panel do not overlap; The fourth conductive layer has the same structure as the third conductive layer.

16. The display module according to claim 14, wherein: The orthographic projection shape of the third electrode on the display panel includes any one of a rectangle, a polygon, a regular polygon, an ellipse, and a circle; The orthographic projection shape of the fourth electrode on the display panel includes any one of a rectangle, a polygon, a regular polygon, an ellipse, and a circle; The length direction of the maximum radial dimension portion of the orthographic projection of the third electrode on the display panel is parallel to the fourth signal line; A length direction of a maximum radial dimension portion of an orthographic projection of the fourth electrode on the display panel is parallel to the fourth signal line.

17. A display device, wherein: A display module comprising any one of claims 1 to 16; Also includes a scroll, located at a side of the second area of ​​the display module away from the first area, the scroll having a curved surface of a first radius and a curved surface of a second radius, the first radius being greater than the second radius; The display module can be rolled up on the rolling shaft, and the second area can be rolled up on the curved surface of the second radius, and the first area can be rolled up on the curved surface of the first radius; The axis of the reel intersects with a first direction in which the first regions and the second regions are arranged.

18. The display device according to claim 17, wherein: The reel comprises a column shaft and a barrel shaft, wherein the column shaft is located in the barrel shaft, and the axes of the column shaft and the barrel shaft are parallel. The cross-sectional shape of the column shaft includes a circle; the cross-sectional shape of the barrel shaft includes an ellipse; The second region may be wound around the cylindrical shaft, The first region may be wrapped around an outer surface of the barrel shaft facing away from the cylindrical axis; The outer surface of the cylindrical shaft comprises a first surface area and a second surface area, the first surface area and the second surface area are connected, the curvature radius of the first surface area is greater than the curvature radius of the second surface area, and the curvature radius of the second surface area is greater than the cross-sectional radius of the cylindrical shaft; The third area among the first areas may be rolled up on the first surface area, and the fourth area among the first areas may be rolled up on the second surface area.

19. The display device according to claim 18, wherein: The length directions of the openings in the first sub-portion, the second sub-portion and the second supporting portion of the display module are parallel to the axis of the scroll.

20. A method for driving a display device according to any one of claims 17 to 19, wherein: include: When the display module in the display device is in an unfolded state and is displaying, a first part of the touch layer in the display module is touch-driven; Touch driving is performed or not performed on the second portion of the touch layer.

21. The driving method according to claim 20, wherein: When the display module is in the unfolded state and is displaying, the third part of the first part is touch-driven; Touch driving is performed or not performed on the second part and a fourth part of the first part.

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