Display panel and display device

Abstract

The embodiment of the present invention provides a display panel, a display device, a spacer and a method for manufacturing a display panel. The display panel has a display area, and a plurality of pixel areas are arranged in the display area; the display panel includes a color filter substrate, an array substrate and a main spacer assembly. The array substrate and the color filter substrate are arranged opposite to each other. The main spacer assembly includes a first main spacer and a second main spacer, and the main spacer assembly is at least located in the display area. The first main spacer is arranged on the side of the color filter substrate facing the array substrate, and the second main spacer is arranged on the side of the array substrate facing the color filter substrate; the first main spacer has a first bite structure, and the second main spacer has a second bite structure, and the first bite structure and the second bite structure cooperate so that the relative sliding amount of the first main spacer and the second main spacer is within a preset sliding range.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel, a display device, a spacer, and a method for manufacturing the display panel. Background Art

[0002] In the related art, a liquid crystal display panel includes an array substrate and a color filter substrate which are aligned with each other, and a liquid crystal layer is arranged between the array substrate and the color filter substrate. In order to ensure the uniformity of the thickness of the liquid crystal layer, in a first solution, it is usually necessary to arrange a spacer (Photo Spacer, PS) on the side of the color filter substrate facing the array substrate for support.

[0003] However, during the use of the liquid crystal display panel, the contact area between the spacer and the array substrate may be squeezed and deformed due to external force, causing the spacer to slide to the display area AA on the array substrate side, scratching the alignment film in the display area AA, causing light leakage and resulting in poor image quality (Mura).

[0004] In the related art, large and medium-sized liquid crystal display products use the second solution to improve the poor picture problem of the first solution. The specific solution is to set a strip spacer on each of the opposite sides of the array substrate and the color film substrate. The two strip spacers are abutted in a cross shape. The short sides of the contact surfaces of the two strip spacers mainly play a supporting role, and the long sides mainly play a sliding compensation role. Under the action of external force, the two strip spacers can slide relative to each other along the long side direction, that is, the extension direction of the strip spacers, thereby avoiding damage to the alignment film after the strip spacers slide, thereby improving light leakage and improving the picture quality.

[0005] A black matrix layer is also provided on the color film substrate, and the black matrix layer is provided with a plurality of openings for light of the pixel unit to pass through. The projection of the black matrix layer on the array substrate at least covers the projection of the spacer.

[0006] However, when the product size is larger, there will be a large amount of slip between the strip spacers. In order to compensate for the slip, the long side of the strip spacers needs to be larger. Since the projection of the black matrix layer on the array substrate must at least cover the projection of the strip spacers, as the slip increases, the compensation value of the black matrix layer increases, which in turn causes the opening corresponding to each pixel unit to decrease, the aperture ratio to decrease, and the display quality to decrease. Summary of the invention

[0007] The purpose of the embodiments of the present invention is to provide a display panel, a display device, a spacer and a method for manufacturing a display panel, so as to improve the aperture ratio of the display panel and thus improve the display quality. The specific technical solution is as follows:

[0008] An embodiment of the first aspect of the present application provides a display panel, having a display area, in which a plurality of pixel areas are arranged, characterized in that the display panel comprises: a color film substrate, comprising a black matrix layer, wherein the black matrix layer defines a plurality of pixel openings in the display area, and the pixel openings correspond one-to-one to the pixel areas, and an array substrate, which is arranged opposite to the color film substrate; a main spacer assembly, comprising a first main spacer and a second main spacer, wherein the main spacer assembly is at least located in the display area; the projection of the main spacer assembly on the array substrate is at least located within the projection range of the black matrix layer on the array substrate; the first main spacer is arranged on a side of the color film substrate facing the array substrate, and the second main spacer is arranged on a side of the array substrate facing the color film substrate; the first main spacer has a first bite structure, and the second main spacer has a second bite structure, and the first bite structure and the second bite structure cooperate so that the relative sliding amount of the first main spacer and the second main spacer is within a preset sliding range.

[0009] In some embodiments of the present application, the first main spacer and the second main spacer are both strip-shaped structures, the projection of the first main spacer on the array substrate extends along a first direction, the projection of the second main spacer on the array substrate extends along a second direction, and the first direction and the second direction are perpendicular to each other.

[0010] In some embodiments of the present application, the first biting structure is a first groove arranged on the first main spacer, the opening of the first groove faces away from the array substrate, and the first groove penetrates the first main spacer in the second direction; the second biting structure is a second groove arranged on the second main spacer, the opening of the second groove faces away from the second substrate, and the second groove penetrates the second main spacer in the first direction.

[0011] In some embodiments of the present application, the length of the first groove is greater than the width of the second main spacer, and the length of the second groove is greater than the width of the first main spacer.

[0012] In some embodiments of the present application, when the first groove and the second groove are aligned, in the first direction, the distance between the groove wall of the first groove and the outer surface of the adjacent side of the second main spacer is at least greater than or equal to 3.3um; in the second direction, the distance between the groove wall of the second groove and the outer surface of the adjacent side of the first main spacer is at least greater than or equal to 3.3um.

[0013] In some embodiments of the present application, the lengths of the first main spacer and the second main spacer are 15-50 um, the widths of the first main spacer and the second main spacer are 4.5-6 um, and the lengths of the first groove and the second groove are 11.1-12.6 um.

[0014] In some embodiments of the present application, the array substrate includes a plurality of scan lines and a plurality of data lines, the scan lines and the data lines vertically intersect to define a plurality of pixel units, and the pixel units correspond one-to-one to the pixel areas; in the display area, the projection of the first main spacer on the array substrate is parallel to or overlaps with the data lines, and the projection of the second main spacer on the array substrate is parallel to or overlaps with the scan lines.

[0015] In some embodiments of the present application, the display panel also includes an auxiliary spacer assembly, the auxiliary spacer assembly includes a first auxiliary spacer and a second auxiliary spacer, the first auxiliary spacer is arranged on the side of the color film substrate facing the array substrate, and the height of the first auxiliary spacer is smaller than that of the first main spacer.

[0016] In some embodiments of the present application, a height difference between the first main spacer and the first auxiliary spacer is 0.5 um.

[0017] In some embodiments of the present application, the distance between the side of the first main spacer close to the array substrate and the array substrate is greater than the height difference between the first main spacer and the first auxiliary spacer; the distance between the side of the second main spacer close to the color film substrate and the color film substrate is also greater than the height difference between the first main spacer and the first auxiliary spacer.

[0018] In some embodiments of the present application, the display panel further includes a transition zone, which surrounds the outer side of the display area, and the auxiliary spacer component is located between the display area and the transition zone.

[0019] In some embodiments of the present application, the display panel further includes a transition area and a frame area sequentially arranged outside the display area, and the main spacer assembly is also located in the frame area.

[0020] In some embodiments of the present application, the main spacer components are evenly distributed in the border area, and in the border area, the distance between two adjacent main spacer components is 50-55um, and / or, and the contact area between the first main spacer and the second main spacer accounts for 0.02%-0.2% of the area of ​​the color film substrate or the array substrate in the border area.

[0021] In an embodiment of the present application, the display panel includes an array substrate and a color filter substrate, a first main spacer is provided on the color filter substrate, a second main spacer is provided on the array substrate, and the corresponding first main spacer and second main spacer constitute a main spacer assembly. The projection of the main spacer assembly on the array substrate is located within the projection range of the black matrix layer on the array substrate, thereby, the first main spacer and the second main spacer will not affect the normal display of the pixel area. A first bite structure is provided on the first main spacer, and a second bite structure is provided on the second main spacer. The first bite structure and the second bite structure cooperate to block the first main spacer and the second main spacer, limit the relative sliding range of the first main spacer and the second main spacer, and make the relative sliding amount of the first main spacer and the second main spacer within a preset sliding range. Compared with the related art, the display panel of the embodiment of the present application can control the relative sliding range of the first main spacer and the second main spacer under the action of external force by setting the first bite structure and the second bite structure, so that the relative sliding amount of the first main spacer and the second main spacer is within the preset sliding range. Therefore, the compensation value of the black matrix layer can be effectively controlled to be smaller, which is beneficial to improve the aperture ratio and improve the display quality.

[0022] An embodiment of a second aspect of the present application provides a display device, comprising a display panel according to any embodiment of the first aspect.

[0023] According to the display device in the embodiment of the present application, since it has the display panel of the first aspect, it also has the beneficial effects of any embodiment of the first aspect, which will not be described in detail here.

[0024] The third aspect of the present application provides a method for manufacturing a spacer, which is used to manufacture the first main spacer and the second main spacer according to any one of claims 1 to 14, including a testing process, wherein the testing process includes:

[0025] A plurality of first opening matrices are arranged on the first mask plate, each of the first opening matrices comprises a plurality of first opening units, each of the first opening units has a first opening, and the first opening sizes of the first opening units are different;

[0026] The display motherboard includes a plurality of display panels distributed in an array, and a photoresist is coated on the DP side of the color film substrate of each display panel;

[0027] The first opening matrix corresponds to the display panel one by one, and one first opening matrix is ​​mounted on the DP side of the color filter substrate of each display panel;

[0028] Exposing the photoresist using the first mask;

[0029] measuring and recording the dimensions of the patterned structures formed after exposure;

[0030] According to the size of the recorded patterned structure, the opening size of the mask plate corresponding to the spacer is selected;

[0031] Use the selected mask opening size to create spacers.

[0032] In some embodiments of the present application, the first mask is a halftone mask, and the first mask has a plurality of different transmittances; each of the first opening units has a plurality of first openings of the same size, and in each of the first opening units, at least two first openings have different transmittances;

[0033] The measuring and recording of the size of the patterned structure formed after exposure comprises:

[0034] Measure and record the height dimensions of patterned structures;

[0035] According to the recorded height dimension of the patterned structure, a transmittance that meets the height requirement of the spacer is selected;

[0036] When the height dimensions of the recorded patterned structures do not meet the height requirements of the spacer, the actual relationship between each transmittance and the corresponding patterned structure height is calculated;

[0037] Calculating the basis difference based on the actual relationship between the transmittance and the patterned structure height in combination with the theoretical relationship between the same transmittance and the patterned structure height;

[0038] The estimated value of the patterned structure height corresponding to the untested transmittance is calculated based on the basis difference, and the recommended transmittance that meets the height requirements for spacer production is selected.

[0039] In some embodiments of the present application, the estimated value of the patterned structure height corresponding to the untested transmittance is calculated according to the basis difference, and the recommended transmittance that meets the spacer manufacturing height requirement is selected, including selecting multiple recommended transmittances that meet the spacer manufacturing height requirement;

[0040] After the step of selecting a plurality of recommended transmittances that meet the spacer manufacturing height requirements, the process also includes: a verification process for the selected plurality of recommended transmittances;

[0041] The verification process includes:

[0042] Dividing the second mask plate with the selected multiple transmittances into multiple regions, and providing multiple second openings in each region, wherein at least two second openings have different transmittances;

[0043] Coating photoresist on white glass;

[0044] exposing the photoresist using a second mask;

[0045] The height dimension of the patterned structure obtained after exposure is measured and recorded, and the recommended transmittance corresponding to the patterned structure with the smallest difference from the height requirement of the spacer is selected as the optimal transmittance.

[0046] The manufacturing process of the spacer of the embodiment of the present application includes a testing process. During the testing process, a first opening matrix is ​​mounted on the DP (Data Pad, data binding) side of each display panel, so that each first opening matrix can be evenly distributed on the display motherboard along with the display panel, ensuring the uniformity of the test results, thereby facilitating the improvement of the manufacturing accuracy of the spacer. In addition, since during the testing process, the photoresist is coated on the DP side of the color filter substrate of each display panel, and the DP side of the color filter substrate will be cut off after the color filter substrate and the array substrate are aligned, therefore, this testing process will not affect the manufacturing of each display panel in the display motherboard used, and is also conducive to reducing costs.

[0047] An embodiment of a fourth aspect of the present application provides a method for manufacturing a display panel, including the method for manufacturing a spacer according to any embodiment of the third aspect.

[0048] According to the method for manufacturing a display panel in the embodiment of the present application, since it has the method for manufacturing a spacer of the third aspect, it also has the beneficial effects of any embodiment of the third aspect, which will not be described in detail here.

[0049] 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

[0050] 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.

[0051] Figure 1a It is a schematic diagram of the structure of a display panel using the first solution in the related art;

[0052] Figure 1b It is a schematic diagram of the structure of a display panel adopting the first solution in the related art under a stress condition;

[0053] Figure 1c for Figure 1a The schematic diagram of the height change of the spacer before and after being subjected to force is shown;

[0054] Figure 2aIt is a structural schematic diagram of a display panel adopting the second solution in the related art;

[0055] Figure 2b It is a schematic diagram of the structure of a spacer using the second solution in the related art;

[0056] Figure 2c for Figure 2a Schematic diagram of the height change of the spacer before and after being subjected to force;

[0057] Figure 2d is a relationship diagram between the contact area and deformation range of the spacer;

[0058] Figure 3 A schematic plan view of a display panel according to Embodiment 1 of the present application;

[0059] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0060] Figure 5 for Figure 3 A partial enlarged view of the display area of ​​the display panel shown;

[0061] Figure 6 This is a schematic diagram of the structural design of the first main spacer and the second main spacer in Example 1 of the present application;

[0062] Figure 7 for Figure 6 A schematic diagram of the coordination between the first main spacer and the second main spacer;

[0063] Figure 8 for Figure 6 A diagram showing the matching process of the first main spacer and the second main spacer;

[0064] Fig. 9 for Figure 6 A schematic diagram of the alignment of the first main spacer and the second main spacer;

[0065] Fig.10 A schematic structural diagram of a first mask plate used in a method for manufacturing a spacer according to an embodiment of the present application;

[0066] Fig.11 for Fig.10 A schematic diagram of the arrangement of a plurality of first openings in the first opening unit is shown;

[0067] Fig.12 A schematic diagram of the structure of a display motherboard used in a method for manufacturing a spacer according to an embodiment of the present application;

[0068] Fig.13 for Fig.12A schematic structural diagram of a display motherboard in which one of the display panels is equipped with a first opening matrix;

[0069] Fig.14 for Fig.13 A schematic structural diagram of a color filter substrate with a first opening matrix mounted on the DP side;

[0070] Fig.15 This is a regional division diagram of a second mask plate used in the spacer manufacturing method according to an embodiment of the present application.

[0071] Figure 1a-Figure 1c Middle: liquid crystal display panel 80; color filter substrate 81; array substrate 82; liquid crystal layer 83; spacer 84; alignment film 85;

[0072] Figure 2a-2d Middle: liquid crystal display panel 90; color filter substrate 91; black matrix layer 910; color filter 911; array substrate 92; liquid crystal layer 93; spacer 94; alignment film 95;

[0073] Figure 3-Figure 9 Middle: display panel 10; color filter substrate 100; base layer 101; black matrix layer 110; pixel opening 111; color filter 120; red filter 121; green filter 122; blue filter 123; cover layer 130; alignment film 140; array substrate 200; scan line 210; data line 220; main spacer assembly 300; first main spacer 310; first groove 311; second main spacer 320; second groove 321; auxiliary spacer assembly 400; first auxiliary spacer 410; second auxiliary spacer 420; colloid 500; display area AA; transition area Dummy1; frame area Dummy2; first direction X; second direction Y; pixel area PX;

[0074] Figure 10-Figure 15 Middle: display motherboard 20; display panel 21; color filter substrate 211; first mask plate 22; first opening matrix 221; first opening unit 222; first opening 223; second mask plate 23; area A2. DETAILED DESCRIPTION

[0075] 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.

[0076] like Figure 1aAs shown in the related art, the liquid crystal display panel 80 includes an array substrate 82 and a color filter substrate 81 which are aligned with each other, and a liquid crystal layer 83 is arranged between the array substrate 82 and the color filter substrate 81. In order to ensure the uniformity of the thickness of the liquid crystal layer 83, in the first solution, a spacer 84 is arranged on the side of the color filter substrate 81 facing the array substrate 82. Figure 1b As shown, during the use of the liquid crystal display panel 80, the contact area between the spacer 84 and the array substrate 82 may be squeezed and deformed due to external force, causing the spacer 84 to slide to the display area on the array substrate 82 side, scratching the alignment film 85 in the display area to cause light leakage and produce a poor picture.

[0077] In the related art, large and medium-sized liquid crystal display products use the second solution to improve the poor picture quality of the first solution.

[0078] like Figure 2a As shown, the second solution is to set a spacer 94 on each of the opposite sides of the array substrate 92 and the color filter substrate 91, such as Figure 2a and Figure 2b As shown, the two spacers 94 are strip-shaped structures and are abutted in a cross shape. The short sides of the contact surfaces of the two spacers 94 mainly play a supporting role, and the long sides mainly play a sliding compensation role. Under the action of external force, the two spacers 94 can slide relative to each other along the long side direction, that is, the extension direction of the spacers 94, thereby avoiding damage to the alignment film 95 after the spacers 94 slide, improving light leakage and improving picture quality.

[0079] like Figure 2a As shown, the color filter substrate 91 includes a black matrix layer 910, and the black matrix layer 910 is provided with a plurality of openings, and a color filter 911 is provided at the opening, and the color filter 911 is used to allow light of a specific color such as red, green or blue to pass through, so that the liquid crystal display panel 90 can realize color display. The projection of the black matrix layer 910 on the array substrate 92 at least covers the projection of the spacer 94.

[0080] However, when the size of the liquid crystal display panel 90 is large, a large slippage will occur between the spacers 94. In order to compensate for the slippage, the long side size of the spacers 94 needs to be enlarged. Since the projection of the black matrix layer 910 on the array substrate 92 at least covers the projection of the spacers 94, as the slippage increases, the compensation value of the black matrix layer 910 increases, which in turn causes the opening corresponding to each pixel unit to decrease, the aperture ratio to decrease, and the display quality to decrease.

[0081] In view of this, if Figure 3 and Figure 4As shown, the first embodiment of the first aspect of the present application provides a display panel 10, which has a display area AA, and a plurality of pixel areas PX are arranged in the display area AA. The display panel 10 includes a color filter substrate 100, an array substrate 200, and a main spacer assembly 300. The color filter substrate 100 includes a black matrix layer 110, and the black matrix layer 110 defines a plurality of pixel openings 111 in the display area AA, and the pixel openings 111 correspond to the pixel areas PX one by one. The array substrate 200 is arranged corresponding to the color filter substrate 100. The main spacer assembly 300 is located in the display area AA, and the main spacer assembly 300 includes a first main spacer 310 and a second main spacer 320. The first main spacer 310 is arranged on the side of the color filter substrate 100 facing the array substrate 200, and the second main spacer 320 is arranged on the side of the array substrate 200 facing the color filter substrate 100. The first main spacer 310 has a first bite structure, and the second main spacer 320 has a second bite structure. The first bite structure and the second bite structure cooperate so that the relative sliding amount between the first main spacer 310 and the second main spacer 320 is within a preset sliding range.

[0082] In the embodiment of the present application, the display panel 10 includes an array substrate 200 and a color filter substrate 100, a first main spacer 310 is disposed on the color filter substrate 100, and a second main spacer 320 is disposed on the array substrate 200, and the corresponding first main spacer 310 and second main spacer 320 constitute a main spacer assembly 300. The projection of the main spacer assembly 300 on the array substrate 200 is located within the projection range of the black matrix layer 110 on the array substrate 200, so that the first main spacer 310 and the second main spacer 320 will not affect the normal display of the pixel area PX. The first main spacer 310 is provided with a first bite structure, and the second main spacer 320 is provided with a second bite structure. The first bite structure and the second bite structure cooperate to block the first main spacer 310 and the second main spacer 320, limit the relative sliding range of the first main spacer 310 and the second main spacer 320, and make the relative sliding amount of the first main spacer 310 and the second main spacer 320 within the preset sliding range. Compared with the related art, the display panel 10 of the embodiment of the present application can control the relative sliding range of the first main spacer 310 and the second main spacer 320 under the action of external force by setting the first bite structure and the second bite structure, so that the relative sliding amount of the first main spacer 310 and the second main spacer 320 is within the preset sliding range, thereby effectively controlling the compensation value of the black matrix layer 110, so that the compensation value of the black matrix layer 110 is small, which is conducive to improving the aperture ratio and improving the display quality.

[0083] like Figure 4As shown, in the first embodiment, the color filter substrate 100 includes a base layer 101, a black matrix layer 110 is located on a side of the base layer 101 close to the array substrate 200, and a color filter 120 is provided at the pixel opening 111. The color filter 120 includes a red filter 121, a green filter 122, and a blue filter 123. The color filter 120 only allows light of a specific color to pass through. For example, the red filter 121 only allows red light to pass through, and its corresponding pixel area PX is a red pixel. By providing the color filter 120, the display panel 10 can be displayed in color. The black matrix layer 110 is located between two adjacent pixel areas PX, so that crosstalk of different color lights from adjacent pixel areas PX can be avoided. The color filter substrate 100 further includes a covering layer 130 and an alignment film 140 . In the display area AA, the covering layer 130 is located on a side of the black matrix layer 110 close to the array substrate 200 , and the alignment film 140 is located on a side of the covering layer 130 close to the black matrix layer 110 .

[0084] like Figure 4 and Figure 5 As shown, both the first main spacer 310 and the second main spacer 320 are strip-shaped structures, the projection of the first main spacer 310 on the array substrate 200 extends along the first direction X, and the projection of the second main spacer 320 on the array substrate 200 extends along the second direction Y, and the first direction X and the second direction Y are perpendicular to each other. Therefore, the first main spacer 310 and the second main spacer 320 can be cross-matched, so that under the action of external forces in different directions, the first main spacer 310 and the second main spacer 320 can slide relative to each other.

[0085] Specifically, Figure 5 As shown, the array substrate 200 includes a plurality of data lines 220 and a plurality of scan lines 210. The scan lines 210 and the data lines 220 intersect vertically to define a plurality of pixel units. Each pixel unit is provided with a pixel electrode. The pixel unit corresponds to the pixel area PX one by one. The array substrate 200 also includes a plurality of uniformly distributed thin film transistors, and each pixel unit corresponds to a thin film transistor. Each data line 220 is connected to the source electrode of the thin film transistor in the same column, and each scan line 210 is connected to the gate electrode of the thin film transistor in the same row. By applying a scan signal to the scan line 210, the thin film transistor connected to the same scan line 210 is turned on, and the data voltage applied to the data line 220 charges the pixel electrode through the turned-on thin film transistor.

[0086] like Figure 5As shown, in the display area AA, the projection of the first main spacer 310 on the array substrate 200 can be parallel to or overlap with the data line 220, and the projection of the second main spacer 320 on the array substrate can be parallel to or overlap with the scan line 210, that is, the first direction X is the extension direction of the data line 220, and the second direction Y is the extension direction of the scan line 210. Therefore, the first main spacer 310 and the second main spacer 320 will not affect the pixel unit.

[0087] Furthermore, if Figures 6 to 9 As shown, the first engaging structure is a first groove 311 provided on the first main spacer 310, the opening of the first groove 311 is away from the color filter substrate 100, and the first groove 311 penetrates the first main spacer 310 in the second direction Y, that is, the first groove 311 penetrates the first main spacer 310 in the width direction of the first main spacer 310. The second engaging structure is a second groove 321 provided on the second main spacer 320, the opening of the second groove 321 is away from the array substrate 200, and the second groove 321 penetrates the second main spacer 320 in the first direction X, that is, the second groove 321 penetrates the second main spacer 320 in the width direction of the second main spacer 320. Therefore, after the first main spacer 310 and the second main spacer 320 are cross-matched, the first groove 311 can be engaged with the second groove 321 to form a mortise and tenon structure, thereby limiting the relative sliding range of the first main spacer 310 and the second main spacer 320, so that the first main spacer 310 can only slide within the range of the second groove 321, and the second main spacer 320 can only slide within the range of the first groove 311.

[0088] It should be noted that Figures 6 to 9 The first main spacer 310 and the second main spacer 320 are designed in a rectangular shape. However, in actual production, due to process limitations, the first main spacer 310 and the second main spacer 320 are designed in a rectangular shape. Figure 4 The structure shown is a platform structure, and the cross-sections of the first main spacer 310 and the second main spacer 320 in the height direction are trapezoidal.

[0089] In the first embodiment, the liquid crystal amount range can be increased by providing the first groove 311 and the second groove 321. For the display panel 10, the amount of liquid crystal directly affects the display condition, and a safe liquid crystal range is called the liquid crystal amount range (liquid crystal margin, also known as LC margin). Currently, in the TFT-LCD (Thin film transistor liquid crystal display) display technology, the height of the spacer and its uniformity are the main factors affecting the liquid crystal amount range, and the height deformation of the spacer under the action of external force will also affect the liquid crystal amount range.

[0090] like Figure 1c As shown, in the first solution of the related art, that is, only one spacer 84 is provided on the side of the color filter substrate 81, under the action of external force, the force-bearing area of ​​the spacer 84 is only the area of ​​the spacer 84 in contact with the array substrate 82. Figure 2b and Figure 2c As shown, in the second scheme of the related technology, since the spacer 94 is a strip structure and the two spacers 94 are cross-matched, the size of the spacer 94 is increased, and under the action of external force, the force area of ​​the two spacers 94 is the entire surface area S2 of the contact side, which includes not only the direct contact area S1 of the two spacers 94, but also the non-contact area. Therefore, the force area of ​​the spacer 94 is increased. Figure 2d The graph of the relationship between the stress area and the deformation is shown, where the width of the spacer corresponding to the L1 curve is 10um, the width corresponding to the L2 curve is 9um, the width corresponding to the L3 curve is 8um, the width corresponding to the L4 curve is 7um, and the width corresponding to the L5 curve is 6um. The length of the spacer corresponding to the L1 to L5 curves remains unchanged. Figure 2d As shown, under the same external force, the larger the width, that is, the larger the force area, the smaller the height deformation of the spacer 94, the smaller the deformation, and the smaller the liquid crystal volume range. Therefore, under the same external force, Figure 1c In the first embodiment, the deformation amount d1 of the spacer 84 in the height direction is greater than Figure 2c The deformation amount d2 of the spacer 94 in the second solution is shown, that is, compared with the first solution, the setting of the spacer 94 in the second solution will lead to a decrease in the liquid crystal amount range of the liquid crystal layer 93, higher requirements for the liquid crystal filling process, and an increase in the cost of the display panel.

[0091] In the first embodiment of the present application, Figure 6 and Figure 7As shown, since the first main spacer 310 and the second main spacer 320 are in contact with each other through the first groove 311 and the second groove 321, the force-bearing area is no longer the area of ​​the entire plane of the first main spacer 310 close to the array substrate 200 and the area of ​​the entire plane of the second main spacer 320 close to the color film substrate 100. The force-bearing area is only the bottom area of ​​the first groove 311 and the second groove 321, and the force-bearing area is greatly reduced. Therefore, under the same external force, compared with the second scheme of the related technology, the height deformation of the first main spacer 310 and the second main spacer 320 is increased, which is beneficial to increase the liquid crystal volume range, reduce process requirements, and reduce costs.

[0092] In the first embodiment, Fig. 9 As shown, the length of the first groove 311 is greater than the width of the second main spacer 320, and the length of the second groove 321 is greater than the width of the first main spacer 310. Therefore, the first main spacer 310 can slide within the range of the second groove 321, and the second main spacer 320 can slide within the range of the first groove 311.

[0093] Furthermore, when the first groove 311 and the second groove 321 are aligned, in the first direction X, the distance d4 between the groove wall of the first groove 311 and the outer surface of the adjacent side of the second main spacer 320 is at least greater than or equal to 3.3um; in the second direction Y, the distance d3 between the groove wall of the second groove 321 and the outer surface of the adjacent side of the first main spacer 310 is at least greater than or equal to 3.3um. In other words, at least a compensation range of more than 3.3um is reserved around the first groove 311 and the second groove 321 to avoid alignment deviation and ensure that the first groove 311 and the second groove 321 of each first main spacer 310 assembly 300 are engaged with each other after the color filter substrate 100 and the array substrate 200 are aligned.

[0094] Specifically, when considering the compensation range, it is necessary to incorporate critical dimension fluctuations, coverage fluctuations, and alignment fluctuations, which are caused by related equipment in the manufacturing process. Critical dimension fluctuations, also known as CD (Critical Dimension) fluctuations, refer to the dimensional deviations that may occur during the manufacturing of the first main spacer 310 and the second main spacer 320. Coverage fluctuations refer to the possible deviations in the position of the mask plate during the process of using the mask plate to expose the photoresist to form the first main spacer 310 and the second main spacer 320. Alignment fluctuations refer to the possible offsets that may occur during the alignment process of the first main spacer 310 and the second main spacer 320.

[0095] Typically, the critical dimension fluctuation of the first main spacer 310 is 1.25um, the critical dimension fluctuation of the second main spacer 320 is 2um, the coverage fluctuation of the first main spacer 310 and the second main spacer 320 is 0.8um, and the alignment fluctuation of the first main spacer 310 and the second main spacer 320 is 2um.

[0096] According to the calculation formula The compensation range can be at least 3.3um.

[0097] In the first embodiment, the length of the first main spacer 310 and the second main spacer 320 is 15-50 um, and the width of the first main spacer 310 and the second main spacer 320 is 4.5-6 um, thereby meeting the conventional resolution requirement of the display panel 10 .

[0098] Further, the length of the first groove 311 and the second groove 321 is 11.1-12.6um. That is, the dimension of the first groove 311 in the length direction of the first main spacer 310 is 11.1-12.6um, and the dimension of the second groove 321 in the length direction of the second main spacer 320 is 11.1-12.6um. Considering that the first groove 311 needs to accommodate the width dimension of the second main spacer 320 and a compensation range of 3.3um needs to be reserved, the length of the first groove 311 is 11.1-12.6um. For the same reason, the length of the second groove 321 is also 11.1-12.6um. By setting the length of the first groove 311 and the second groove 321 to 11.1-12.6um, the first main spacer 310 and the second main spacer 320 can be relatively slipped, and the first main spacer 310 and the second main spacer 320 can be prevented from being unable to bite due to the alignment offset.

[0099] like Figure 4As shown, in the first embodiment, the display panel 10 further includes an auxiliary spacer assembly 400, which may be located in the display area AA. The auxiliary spacer assembly 400 includes a first auxiliary spacer 410 and a second auxiliary spacer 420. The first auxiliary spacer 410 is arranged on the side of the color filter substrate 100 facing the array substrate 200, and the height of the first auxiliary spacer 410 is less than the first main spacer 310. When the display panel 10 is in the box-aligned state, the display area AA is mainly supported by the main spacer assembly 300, and the first auxiliary spacer 410 does not contact the second auxiliary spacer 420. When the display panel 10 is subjected to a large external force or a pressure test is performed, the first auxiliary spacer 410 and the second auxiliary spacer 420 may contact each other, so that the auxiliary spacer assembly 400 can also play a supporting role, thereby avoiding direct contact between the color filter substrate 100 and the array substrate 200, and further enhancing the supporting effect on the display panel 10. It should be noted that the first auxiliary spacer 410 and the second auxiliary spacer 420 are strip-shaped structures, and the height of the second auxiliary spacer 420 can be equal to the height of the second main spacer 320, which is convenient for processing and manufacturing. The first auxiliary spacer 410 and the second auxiliary spacer 420 do not have a bite structure. When the auxiliary spacer assembly 400 plays a supporting role, the side of the first auxiliary spacer 410 close to the array substrate 200 and the side of the second auxiliary spacer 420 close to the color filter substrate 100 are in direct contact.

[0100] Furthermore, the distance between the side of the first main spacer 310 close to the array substrate 200 and the array substrate 200 is greater than the height difference between the first main spacer 310 and the first auxiliary spacer 410. The distance between the side of the second main spacer 320 close to the color film substrate 100 and the color film substrate 100 is also greater than the height difference between the first main spacer 310 and the first auxiliary spacer 410. Thus, it is possible to avoid the first main spacer 310 directly contacting the array substrate 200 or the second main spacer 320 directly contacting the color film substrate 100 before the auxiliary spacer assembly 400 plays a supporting role, that is, before the first auxiliary spacer 410 and the second auxiliary spacer 420 contact, thereby avoiding affecting the supporting force.

[0101] In the first embodiment, the height difference between the first main spacer 310 and the first auxiliary spacer 410 is 0.5 um. The distance between the side of the first main spacer 310 close to the array substrate 200 and the array substrate 200 is greater than 0.6 um, and the distance between the side of the second main spacer 320 close to the color filter substrate 100 and the color filter substrate 100 is also greater than 0.6 um.

[0102] In the display area AA, the auxiliary spacer assembly 400 is arranged to cross and space the main spacer assembly 300 . The projection of the auxiliary spacer assembly 400 on the array substrate 200 is covered by the projection of the black matrix layer 110 on the array substrate 200 .

[0103] like Figure 3 As shown, the display panel 10 further includes a transition area Dummy1 and a frame area Dummy2, wherein the transition area Dummy1 surrounds the outer side of the display area AA, and the frame area Dummy2 surrounds the outer side of the transition area Dummy1. Figure 4 As shown, in the transition area Dummy1, the black matrix layer 110 is not provided with a pixel opening 111, and a color filter 120 is provided between the black matrix layer 110 and the cover layer 130, forming a virtual pixel without a light-emitting function. Therefore, in the transition area Dummy1, the thickness of the color filter substrate 100 increases, and the distance between the color filter substrate 100 and the array substrate 200 decreases. The auxiliary spacer assembly 400 is also located in the transition area Dummy1. In the transition area Dummy1, since the distance between the color filter substrate 100 and the array substrate 200 decreases, the first auxiliary spacer 410 and the second auxiliary spacer 420 can contact, so that the auxiliary spacer assembly 400 can play a supporting role in the transition area Dummy1, ensure the height of the transition area Dummy1, and avoid yellowing of the transition area Dummy1.

[0104] In the first embodiment, Figure 4 As shown, the main spacer component 300 is also located in the border area Dummy2. In the related art, the color filter substrate and the array substrate are generally bonded only in the border area by filling a glue. In the first embodiment, by setting the main spacer component 300 in the border area Dummy2, the glue 500 can be adhered not only to the color filter substrate 100 and the array substrate 200, but also to each main spacer component 300, thereby increasing the adhesion area of ​​the glue 500 and improving the adhesion.

[0105] Furthermore, the main spacer components 300 are evenly distributed in the border area Dummy2, and in the border area Dummy2, the distance between two adjacent main spacer components 300 is 50-55um, and the contact area between the first main spacer 310 and the second main spacer 320 accounts for 0.02%-0.2% of the area of ​​the color film substrate 100 or the array substrate 200 in the border area Dummy2. Thus, the support requirement of the first main spacer 310 component 300 for the border area Dummy2 can be met.

[0106] In other embodiments of the present application, the first main spacer 310 and the second main spacer 320 are not engaged by the first groove 311 and the second groove 321. The first main spacer 310 and the second main spacer 320 may be engaged by gears, that is, the first engagement structure may be a convex tooth provided on the side of the first main spacer 310 close to the array substrate 200, and the second engagement structure may be a tooth groove provided on the side of the second main spacer 320 close to the color film substrate 100, and the convex tooth cooperates with the tooth groove to limit the sliding range of the first main spacer 310 and the second main spacer 320. Alternatively, the first engagement structure is a columnar structure provided on the side of the first main spacer 310 close to the array substrate 200, and the second engagement structure is a circular groove provided on the side of the second main spacer 320 close to the color film substrate 100, and the sliding range of the first main spacer 310 and the second main spacer 320 may be limited by inserting the columnar structure into the circular groove. The present application does not limit the shapes of the first biting structure and the second biting structure, as long as the biting of the first biting structure and the second biting structure can be achieved.

[0107] An embodiment of the second aspect of the present application provides a display device, including the display panel 10 of any embodiment of the first aspect.

[0108] The display device of the embodiment of the present application includes a display panel 10, and the display panel 10 includes an array substrate 200 and a color filter substrate 100. A first main spacer 310 is disposed on the color filter substrate 100, and a second main spacer 320 is disposed on the array substrate 200. The first main spacer 310 and the second main spacer 320 corresponding to each other constitute a main spacer assembly 300. The projection of the main spacer assembly 300 on the array substrate 200 is located within the projection range of the black matrix layer 110 on the array substrate 200, so that the first main spacer 310 and the second main spacer 320 will not affect the normal display of the pixel area PX. The first main spacer 310 is provided with a first bite structure, and the second main spacer 320 is provided with a second bite structure. The first bite structure and the second bite structure cooperate to block the first main spacer 310 and the second main spacer 320, limit the relative sliding range of the first main spacer 310 and the second main spacer 320, and make the relative sliding amount of the first main spacer 310 and the second main spacer 320 within the preset sliding range. Compared with the related art, the display panel 10 of the embodiment of the present application can control the relative sliding range of the first main spacer 310 and the second main spacer 320 under the action of external force by setting the first bite structure and the second bite structure, so that the relative sliding amount of the first main spacer 310 and the second main spacer 320 is within the preset sliding range, thereby effectively controlling the compensation value of the black matrix layer 110, so that the compensation value of the black matrix layer 110 is small, which is conducive to improving the aperture ratio and improving the display quality.

[0109] The third aspect of the present application provides a method for manufacturing a display spacer, which is used to manufacture the first main spacer and the second main spacer of the first aspect. The manufacturing method includes a testing process, which includes:

[0110] like Fig.10 As shown, a plurality of first opening matrices 221 are provided on the first mask plate 22, and each first opening matrix 221 includes a plurality of first opening units 222. Fig.11 As shown, each first opening unit 222 has a first opening 223, and the first openings 223 of the first opening units 222 have different sizes;

[0111] like Fig.12 As shown, the display motherboard 20 includes a plurality of display panels 21 distributed in an array, and a photoresist is coated on the DP side of the color filter substrate 211 of each display panel 21;

[0112] like Fig.13 and Fig.14 As shown, the first opening matrix 221 corresponds to the display panel 21 one by one, and one first opening matrix 221 is mounted on the DP side of the color filter substrate 211 of each display panel 21;

[0113] Exposing the photoresist using the first mask plate 22;

[0114] measuring and recording the dimensions of the patterned structures formed after exposure;

[0115] According to the size of the recorded patterned structure, the opening size of the mask plate corresponding to the spacer is selected;

[0116] Use the selected mask opening size to create spacers.

[0117] During the test process of the embodiment of the present application, a first opening matrix 221 is mounted on the DP side of each display panel 21, so that each first opening matrix 221 can be evenly distributed on the display motherboard 20 along with the display panel 21, ensuring the uniformity of the test results, thereby facilitating the improvement of the manufacturing accuracy of the spacers. In addition, since during the test process, the photoresist is coated on the DP side of the color filter substrate 211 of each display panel 21, and the DP side of the color filter substrate 211 will be cut off after the color filter substrate 211 and the array substrate are aligned, the test process will not affect the manufacturing of each display panel 21 in the display motherboard 20 used, and is also conducive to reducing costs.

[0118] In a specific embodiment, when the required size of the spacer is 4.5-6 um, the size of the first opening 223 of each first opening unit 222 may be as shown in Table 1:

[0119] Table 1

[0120]

[0121] The distance between each first opening 223 needs to be greater than 10 um to prevent adhesion, and each first opening unit 222 may occupy a space of 500×500 um.

[0122] In addition, the first mask plate 22 can be a mask plate used in the process of manufacturing the display panel 21. By setting the first opening matrix 221 at the blank position of the first mask plate 22, the first mask plate 22 can be effectively utilized to reduce costs, and the testing process can be completed in the process of manufacturing the display panel 21, which is conducive to further reducing costs.

[0123] Furthermore, the first mask plate 22 is a half-tone mask plate, and the first mask plate 22 has a plurality of different transmittances; Fig.11 As shown, each first opening unit 222 has a plurality of first openings 223 of the same size, and in each first opening unit 222, at least two first openings 223 have different transmittances;

[0124] The measuring and recording the size of the patterned structure formed after exposure includes: measuring and recording the height size of the patterned structure;

[0125] According to the recorded height dimension of the patterned structure, a transmittance that meets the height requirement of the spacer is selected;

[0126] When the height dimensions of the recorded patterned structures do not meet the height requirements of the spacer, the actual relationship between each transmittance and the corresponding patterned structure height is calculated;

[0127] The basis difference is calculated based on the actual relationship between the transmittance and the patterned structure height, combined with the theoretical relationship between the same transmittance and the patterned structure height;

[0128] The estimated value of the patterned structure height corresponding to the untested transmittance is calculated based on the basis difference, and the recommended transmittance that meets the height requirements for spacer production is selected.

[0129] In the embodiment of the present application, the first mask plate 22 is a half-tone mask plate, and thus, the first mask plate 22 can be used to make a spacer with a concave-convex structure, such as the first main spacer and the second main spacer in the embodiment of the first aspect. By selecting and using a transmittance that meets the height requirement for making the spacer, the manufacturing accuracy of the concave-convex structure of the spacer can be improved, for example, the manufacturing accuracy of the first groove of the first main spacer can be improved.

[0130] In addition, considering that the transmittance of the first mask plate 22 used in the test process is limited, for example, the first mask plate may only have a transmittance of 20% and 25%. Therefore, when the height dimensions of the recorded patterned structures do not meet the height requirements for the spacer manufacturing, the actual relationship between each transmittance and the corresponding patterned structure height can be analyzed, so that the basis can be calculated by further combining the theoretical relationship between the same transmittance and the patterned structure height, such as the simulated relationship between the same transmittance and the patterned structure height provided by the mask plate manufacturer. The estimated value of the patterned structure height corresponding to the transmittance that was not tested in this test process, such as 30% or other transmittance values, is calculated based on the basis. By comparing the estimated values, the recommended transmittance that meets the spacer manufacturing height requirements is selected.

[0131] Further, the estimated value of the patterned structure height corresponding to the untested transmittance is calculated according to the basis difference, and the recommended transmittance that meets the spacer manufacturing height requirement is selected, including selecting multiple recommended transmittances that meet the spacer manufacturing height requirement;

[0132] After the step of selecting a plurality of recommended transmittances that meet the spacer manufacturing height requirements, the process also includes: a verification process for the selected plurality of recommended transmittances;

[0133] The verification process includes:

[0134] like Fig.15 As shown, the second mask plate 23 with the selected multiple recommended transmittances is divided into multiple areas A2, and multiple second openings are set in each area A2, and the transmittances corresponding to at least two second openings are different;

[0135] Coating photoresist on white glass;

[0136] The photoresist is exposed using a second mask plate 23;

[0137] The height dimension of the patterned structure obtained after exposure is measured and recorded, and the recommended transmittance corresponding to the patterned structure with the smallest difference from the height requirement of the spacer is selected as the optimal transmittance.

[0138] In the embodiment of the present application, considering that after calculating the estimated value of the patterned structure height corresponding to the untested transmittance, there are multiple recommended transmittances that may meet the spacer height manufacturing requirements, therefore, by selecting multiple recommended transmittances that meet the requirements and verifying the multiple recommended transmittances, the best transmittance can be selected.

[0139] The process of dividing the second mask plate 23 with the selected transmittance into a plurality of areas A2 and providing a plurality of second openings in each area A2 specifically includes:

[0140] A plurality of second opening matrices are arranged in each area A2, each second opening matrix includes a plurality of second opening units, a second opening unit may include a plurality of second openings of the same size, the sizes of the second opening units are not equal, and in each second opening unit, the transmittances of at least two second openings are different.

[0141] In addition, through the above verification process, not only can the height of the spacer produced with the same opening size after using different transmittances be verified to select the best transmittance, but also the influence of different opening sizes on the height of the spacer produced can be verified, which is conducive to improving the relevant data.

[0142] In a specific embodiment, the size of the second mask plate 23 is 880×716 mm, and the second mask plate 23 is divided into 4×4, a total of 16 areas A2. The required opening size is 4.5-6um, so a second opening matrix can be set with 25 second opening units, and the opening size of each second opening unit can be set with reference to Table 1.

[0143] In addition, in a second opening unit of the second mask plate 23, each second opening is distributed in a matrix, and the spacing between each second opening is greater than 5um. Each second unit can occupy 25um in the length and width direction, and the area of ​​each second opening matrix is ​​about 125×125um. Each area A2 of the second mask plate 23 can be arranged with 1600×1200 second opening matrices, thereby improving the accuracy of the verification result.

[0144] The process of exposing the photoresist using the second mask 23 includes: exposing the photoresist using at least two exposure modes, thereby improving the comprehensiveness and accuracy of the inspection process.

[0145] After the verification process, it also includes:

[0146] Collect and process data for the verification process;

[0147] Repeat the verification process and output the guidance rules.

[0148] By outputting the guidance rules, the opening size and transmittance of the mask plate used in the subsequent production of other different spacers can be guided.

[0149] An embodiment of a fourth aspect of the present application provides a method for manufacturing a display panel, including the method for manufacturing a spacer of the third aspect.

[0150] According to the manufacturing method of the display panel of the embodiment of the present application, it includes a manufacturing method of spacers, and the manufacturing method of spacers includes a testing process. During the testing process, a first opening matrix 221 is mounted on the DP side of each display panel 21. Thus, each first opening matrix 221 can be evenly distributed on the display motherboard 20 along with the display panel 21, ensuring the uniformity of the test results, which is beneficial to improving the manufacturing accuracy of the spacers, and further beneficial to improving the manufacturing accuracy of the display panel.

[0151] 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.

[0152] 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.

[0153] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A display panel having a display area, wherein a plurality of pixel areas are arranged in the display area, characterized in that: The display panel comprises: A color film substrate, comprising a black matrix layer, wherein the black matrix layer defines a plurality of pixel openings in the display area, and the pixel openings correspond to the pixel areas one by one; An array substrate, arranged opposite to the color filter substrate; A main spacer assembly, comprising a first main spacer and a second main spacer, wherein the main spacer assembly is at least located in the display area; the projection of the main spacer assembly on the array substrate is located within the projection range of the black matrix layer on the array substrate; an auxiliary spacer assembly, the auxiliary spacer assembly comprising a first auxiliary spacer and a second auxiliary spacer, the first auxiliary spacer being arranged on a side of the color filter substrate facing the array substrate, the height of the first auxiliary spacer being smaller than the first main spacer, and the first auxiliary spacer and the second auxiliary spacer not having a bite structure; The first main spacer is arranged on a side of the color filter substrate facing the array substrate, and the second main spacer is arranged on a side of the array substrate facing the color filter substrate; the first main spacer has a first bite structure, and the second main spacer has a second bite structure, and the first bite structure and the second bite structure cooperate so that the relative sliding amount of the first main spacer and the second main spacer is within a preset sliding range; The first main spacer and the second main spacer are both strip-shaped structures, the projection of the first main spacer on the array substrate extends along a first direction, the projection of the second main spacer on the array substrate extends along a second direction, and the first direction and the second direction are perpendicular to each other; The first engaging structure is a first groove provided on the first main spacer, the opening of the first groove is away from the color film substrate, and the first groove penetrates the first main spacer in the second direction; the second engaging structure is a second groove provided on the second main spacer, the opening of the second groove is away from the array substrate, and the second groove penetrates the second main spacer in the first direction; The length of the first groove is greater than the width of the second main spacer, and the length of the second groove is greater than the width of the first main spacer, so that the first main spacer can only slide within the range of the second groove, and the second main spacer can only slide within the range of the first groove; The distance between the side of the first main spacer close to the array substrate and the array substrate is greater than the height difference between the first main spacer and the first auxiliary spacer; the distance between the side of the second main spacer close to the color film substrate and the color film substrate is also greater than the height difference between the first main spacer and the first auxiliary spacer.

2. The display panel according to claim 1, characterized in that: When the first groove and the second groove are aligned, in the first direction, the distance between the groove wall of the first groove and the outer surface of the adjacent side of the second main spacer is at least greater than or equal to 3.3um; in the second direction, the distance between the groove wall of the second groove and the outer surface of the adjacent side of the first main spacer is at least greater than or equal to 3.3um.

3. The display panel according to claim 2, characterized in that: The lengths of the first main spacer and the second main spacer are 15-50 um, the widths of the first main spacer and the second main spacer are 4.5-6 um, and the lengths of the first groove and the second groove are 11.1-12.6 um.

4. The display panel according to claim 1, characterized in that: The array substrate includes a plurality of scan lines and a plurality of data lines, wherein the scan lines and the data lines intersect vertically to define a plurality of pixel units, and the pixel units correspond one-to-one to the pixel areas; in the display area, the projection of the first main spacer on the array substrate is parallel to or coincides with the data lines, and the projection of the second main spacer on the array substrate is parallel to or coincides with the scan lines.

5. The display panel according to claim 1, characterized in that: A height difference between the first main spacer and the first auxiliary spacer is 0.5 um.

6. The display panel according to claim 1, characterized in that: The display panel further includes a transition area surrounding the outer side of the display area, and the auxiliary spacer assembly is located in the display area and the transition area.

7. The display panel according to claim 1, characterized in that: The display panel further includes a transition area and a frame area sequentially arranged outside the display area, and the main spacer assembly is also located in the frame area.

8. The display panel according to claim 7, characterized in that: The main spacer components are evenly distributed in the border area, and in the border area, the distance between two adjacent main spacer components is 50-55um, and / or the contact area between the first main spacer and the second main spacer accounts for 0.02%-0.2% of the area of ​​the color film substrate or the array substrate in the border area.

9. A display device, characterized in that: A display panel comprising any one of claims 1 to 8.

Images