Initial display substrate, initial display panel, display panel and detection method thereof

Abstract

The present disclosure provides an initial display substrate, the initial display substrate includes a product area and an area to be processed arranged outside the product area, the area to be processed includes a plurality of rounded corner areas to be processed, the plurality of rounded corner areas to be processed are respectively arranged at a plurality of corners of the initial display substrate, the corners include two main edges intersecting in the extension direction, wherein at least one rounded corner area to be processed includes an arc block arrangement sub-area and two rectangular block arrangement sub-areas, the two main edges are respectively the outer edges of the two rectangular block arrangement sub-areas, the arc block arrangement sub-area is arranged between the two rectangular block arrangement sub-areas, the initial display substrate also includes a plurality of rectangular blocking blocks arranged in the rectangular block arrangement sub-areas and a plurality of arc blocking blocks arranged in the arc block arrangement sub-areas, the plurality of arc blocking blocks are arranged in parallel and spaced apart, and the plurality of arc blocking blocks all protrude in a direction away from the product area. The present disclosure also provides an initial display panel, a display panel and a detection method thereof.

Description

Technical Field

[0001] The present disclosure relates to the field of display devices, and in particular, to an initial display substrate, an initial display panel including the initial display substrate, a display panel, and a detection method for the display panel. Background Art

[0002] With the development of display technology, narrow-frame or even borderless display devices have appeared. However, borderless display devices have white edges around the display panel, which affects the appearance of the product.

[0003] In order to solve this problem, a common approach is to set a blocking pattern on the display panel to visually eliminate the white edge.

[0004] In order to prevent the display panel from being bumped and broken into pieces during transportation, the corners of the display panel are usually ground into rounded corners. As mentioned above, since a shielding pattern is set on the display panel, when the initial display panel is ground, it is impossible to determine the distance between the shielding pattern used to block the white edge and the black matrix of the display area in the display panel, and it is also impossible to accurately determine whether the ground rounded corners can reach the required size, resulting in inconsistencies in the rounded corner sizes of different products, affecting product quality. Summary of the invention

[0005] The present disclosure aims to provide an initial display substrate, an initial display panel including the initial display substrate, a display panel, and a detection method of the display panel.

[0006] As a first aspect of the present disclosure, an initial display substrate is provided, the initial display substrate comprising a product area and an area to be processed arranged outside the product area, the area to be processed comprising a plurality of rounded corner areas to be processed, the plurality of rounded corner areas to be processed are respectively arranged at a plurality of corners of the initial display substrate, the corners comprising two main edges intersecting in an extension direction, wherein at least one of the rounded corner areas to be processed comprises an arc block arrangement sub-area and two rectangular block arrangement sub-areas, the two main edges are respectively outer edges of the two rectangular block arrangement sub-areas, the arc block arrangement sub-area is arranged between the two rectangular block arrangement sub-areas,

[0007] The initial display substrate also includes a plurality of rectangular shielding blocks arranged in the rectangular block arrangement sub-area and a plurality of arcuate shielding blocks arranged in the arcuate block arrangement sub-area, wherein the plurality of arcuate shielding blocks are arranged in parallel and spaced apart, and the plurality of arcuate shielding blocks all protrude in a direction away from the product area.

[0008] Optionally, in the rectangular block arrangement sub-area, the plurality of rectangular blocking blocks include a plurality of first rectangular blocking blocks and a plurality of second rectangular blocking blocks, the plurality of first rectangular blocking blocks are arranged along corresponding main edges, and a first interval is formed between two adjacent first rectangular blocking blocks, a plurality of second rectangular blocking blocks are arranged in the first interval, and a width of the first interval is smaller than a dimension of the first rectangular blocking block along the width direction of the first interval.

[0009] Optionally, the width of the first rectangular blocking block is between 40μm and 60μm, the length of the first rectangular blocking block is between 100μm and 200μm, and the width direction of the first rectangular blocking block is consistent with the length direction of the main edge corresponding to the rectangular block arrangement sub-area where the first rectangular blocking block is located.

[0010] Optionally, a width of a first interval between two adjacent first rectangular blocking blocks is between 10 μm and 15 μm.

[0011] Optionally, in the same arc-shaped block arrangement sub-area, a plurality of arc-shaped shielding blocks are arranged at equal intervals.

[0012] Optionally, a width of the second interval between two adjacent arc-shaped blocking blocks is between 10 μm and 15 μm.

[0013] Optionally, in the same arc-shaped block arrangement sub-region, an arrangement pitch of a plurality of the arc-shaped shielding blocks is between 45 μm and 55 μm.

[0014] Optionally, 5 to 10 arc-shaped shielding blocks are arranged in the same arc-shaped block arrangement sub-area.

[0015] Optionally, the rounded corner area to be processed in which the arc-shaped blocking block is provided also includes an auxiliary blocking block arrangement sub-area located between the arc-shaped block arrangement sub-area and the vertex of the corresponding corner, and a non-rectangular first auxiliary blocking block is provided in the auxiliary blocking block arrangement sub-area.

[0016] Optionally, a non-rectangular second auxiliary shielding block is provided in an area of ​​the area to be processed except the rounded corner area to be processed.

[0017] Optionally, the corner of the initial display substrate further includes two auxiliary corner edges whose extension directions intersect, so as to form a positioning notch corner at the corner of the initial display substrate with its vertex protruding toward the product area, and the vertex of the positioning notch corner is the intersection of the two auxiliary corner edges.

[0018] Optionally, the vertex of the positioning notch angle is located in the arc block arrangement sub-area, and the arc-shaped shielding block located outside the vertex of the positioning notch angle includes a first arc-shaped shielding block and a second arc-shaped shielding block.

[0019] As a second aspect of the present disclosure, an initial display panel is provided, comprising an initial display substrate and an initial box-matching substrate arranged in a box with the initial display substrate, wherein the initial display substrate is the initial display substrate provided in the first aspect of the present disclosure.

[0020] As a third aspect of the present disclosure, a method for detecting a display panel is provided, wherein the display panel is an initial display panel provided in the first aspect of the present disclosure, and is obtained by removing a portion of the to-be-processed area of ​​the initial display substrate and a corresponding portion on the initial aligning substrate. The method comprises:

[0021] Acquire an image of a rounded corner area of ​​the display panel;

[0022] Determine the position of the remaining rectangular block in the image obtained by removing part of the material of the rectangular occluding block;

[0023] Determine the radius of the edge arc of the rounded corner area according to the position of the remaining rectangular block closest to the edge arc of the rounded corner area;

[0024] Whether the fillet area is qualified is determined according to the fillet radius.

[0025] As a fourth aspect of the present disclosure, a display panel is provided, the display panel comprising a display substrate and a counter-box substrate arranged with the display substrate, the display substrate comprising a display area and a peripheral area arranged around the display area, the peripheral area comprising a plurality of rounded corner areas, the plurality of rounded corner areas being respectively arranged at a plurality of corners of the display substrate, the corners comprising two main edges intersecting in an extension direction, characterized in that at least one of the rounded corner areas comprises a final arc block arrangement sub-area and two final rectangular block arrangement sub-areas, the two main edges being respectively outer edges of two final rectangular block arrangement sub-areas, the final arc block arrangement sub-area being arranged between the two final rectangular block arrangement sub-areas,

[0026] The display substrate also includes a plurality of remaining rectangular blocking blocks arranged in the final rectangular block arrangement sub-area and at least one arc-shaped blocking block arranged in the final arc-shaped block arrangement sub-area, wherein the arc-shaped blocking blocks protrude in a direction away from the product area, and the curvature of the arc-shaped blocking blocks is consistent with the curvature of the edge arc of the rounded corner area. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 is a structural schematic diagram of an implementation mode of an initial display substrate provided by the present disclosure;

[0029] Figure 2 is an enlarged schematic diagram of a fillet area to be processed of an initial display substrate provided by the present disclosure;

[0030] Figure 3 is a partial enlarged schematic diagram of the fillet area to be processed;

[0031] Figure 4 is a schematic diagram showing a rectangular occluding block;

[0032] Figure 5 is a schematic diagram showing a rectangular occluding block;

[0033] Figure 6 It is a schematic diagram showing the positional relationship between two adjacent rectangular occlusion blocks;

[0034] Figure 7 is a schematic diagram of the structure of a display panel provided by the present disclosure;

[0035] Figure 8 is a partial enlarged schematic diagram of a rounded corner area of ​​the display panel;

[0036] Fig. 9 It is a flow chart of an implementation of the detection method provided by the present disclosure. DETAILED DESCRIPTION

[0037] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0038] The inventors of the present disclosure have repeatedly studied and found that the main reasons for the inconsistency of the fillet sizes of different products are the following two:

[0039] 1. Since the periphery of the initial panel is covered by an independent blocking block, when grinding the corners of the initial panel, it is impossible to clearly determine the size and range of the rounded corners;

[0040] Second, after grinding, when testing whether the diameter of the fillet is qualified, the endpoint position of the edge arc of the fillet is determined by acquiring an image of the fillet and then performing image recognition, and the radius of the arc edge is calculated based on the endpoint position. Since the blocking block at the fillet has the same shape as the blocking block at the right-angle area, the testing equipment cannot accurately determine the boundary of the edge arc of the fillet, and thus cannot accurately determine the diameter of the fillet obtained by grinding, nor can it determine whether the fillet obtained by grinding meets the process requirements.

[0041] In view of this, as a first aspect of the present disclosure, an initial display substrate is provided, such as Figure 1 As shown, the initial display substrate includes a product area 110 and a to-be-processed area 120 disposed outside the product area 110. The to-be-processed area 120 includes a plurality of to-be-processed fillet areas, which are respectively disposed at a plurality of corners of the initial display substrate, and the corners include two main edges ( Figure 2 , which are the principal edge L1 and the principal edge L2, respectively. It should be explained that the "principal edge" here refers to the edge on the initial display substrate that is parallel to the edge of the outer contour of the product area 110, and the principal edges intersect or the extension lines of the principal edges intersect to form a closed figure, and the product area 110 is located inside the closed figure. Figure 1 In the embodiment shown in , the outer contour of the product area 110 is substantially rectangular, and the initial display substrate includes four main edges, which are respectively parallel to the four sides of the product area 110 .

[0042] like Figure 2 As shown, at least one of the rounded corner areas to be processed includes an arc block arrangement sub-area A1 and two rectangular block arrangement sub-areas A2, the two main edges are respectively the outer edges of the two rectangular block arrangement sub-areas A2, and the arc block arrangement sub-area A1 is arranged between the two rectangular block arrangement sub-areas A2. It should be pointed out that the edge of the rectangular block arrangement sub-area A2 located inside the area to be processed 120 is the inner edge of the rectangular block arrangement sub-area A2.

[0043] like Figure 3 As shown, the initial display substrate also includes a plurality of rectangular blocking blocks arranged in a rectangular block arrangement sub-area A2 and a plurality of arc-shaped blocking blocks 121 arranged in an arc-shaped block arrangement sub-area A1. The plurality of arc-shaped blocking blocks 121 are arranged in parallel and spaced apart, and the plurality of arc-shaped blocking blocks 121 all protrude in a direction away from the product area 110.

[0044] The initial display substrate provided by the present disclosure is used to align with the aligning substrate to form an initial display panel. It should be noted that the rounded corners obtained by cutting and / or grinding the initial display panel are located in the arc block arrangement sub-area. Figure 3 As shown in FIG. 1 , the dotted line R is the edge arc of the fillet finally obtained.

[0045] When the initial display panel is cut and / or ground, a portion of the entire area to be processed 120 is removed, such as Figure 7As shown in , the remaining part of the area to be processed 120 is formed as the edge shielding area 120' of the display panel. Therefore, the shielding blocks arranged in the rectangular block arrangement sub-area are also partially removed. Since the edge shape of the rectangular shielding blocks is regular and quite different from the shape of the arc-shaped shielding blocks, the endpoints of the edge arc of the rounded corners obtained after cutting (i.e., the positions where the edge arcs intersect with the remaining parts of the rectangular shielding blocks) are also easily recognized by the detection equipment. After the detection equipment accurately identifies the two endpoints of the edge arc, the radius of the edge arc can be calculated. Since the calculation result is accurate, it is possible to accurately judge whether the rounded corners obtained by cutting are qualified.

[0046] When the initial display substrate provided by the present disclosure is used in an initial display panel, it is possible to accurately determine whether the rounded corners obtained by processing are qualified after processing is completed. Therefore, better product control can be achieved by using the display substrate provided by the present disclosure.

[0047] It should be pointed out that in the present disclosure, the positions of the rectangular block arrangement sub-area A2 and the arc block arrangement sub-area A1 need to be determined according to the size of the edge arc of the rounded corner to be finally obtained. The arc cutting line for cutting to form the rounded corner is located within the range of the arc block arrangement sub-area A1. The tangent of the arc cutting line forming the rounded corner is located within the range of the rectangular block arrangement sub-area A2. Moreover, the curvature of the arc blocking block is consistent with the curvature of the edge arc of the rounded corner to be finally obtained. Moreover, the endpoints of the arc blocking block should be aligned with the endpoint positions of the rounded corner to be finally obtained. Therefore, the size of the arc blocking block can be determined according to the size of the rounded corner area of ​​the display panel to be finally obtained.

[0048] In order to make the rectangular occlusion block easier to identify, as an optional implementation, Figure 3 and Figure 4 As shown in , in the rectangular block arrangement sub-area, the plurality of rectangular shielding blocks include a plurality of first rectangular shielding blocks 122 and a plurality of second rectangular shielding blocks 123. The plurality of first rectangular shielding blocks 122 are arranged along the corresponding main edges, and a first interval is formed between two adjacent first rectangular shielding blocks 122, and a plurality of second rectangular shielding blocks 123 are arranged in the first interval. The width d of the first interval is smaller than the dimension w of the first rectangular shielding block 122 along the width direction of the first interval (in Figure 4 The first rectangular blocking block 122 is relatively large, while the second rectangular blocking block 123 is relatively small. The combination of the first rectangular blocking block 122 and the second rectangular blocking block 123 is easier to identify from the image, and is more convenient to determine the endpoint of the edge arc of the rounded corner, so that the rounded corner edge radius determined during detection is closer to the actual radius of the rounded corner edge.

[0049] In the present disclosure, there is no special limitation on the size of the first rectangular blocking block 122. As an optional implementation, the width of the first rectangular blocking block 122 is between 40 μm and 60 μm, the length b of the first rectangular blocking block 122 is between 100 μm and 200 μm, and the width direction of the first rectangular blocking block 122 is consistent with the length direction of the main edge corresponding to the rectangular block arrangement sub-area where the first rectangular blocking block 122 is located.

[0050] As described above, the tangent of the rounded edge arc passes through the rectangular block arrangement sub-area. For the final display panel, the allowable dimensional error range is ±50μm to ±100μm. Therefore, the length of the first rectangular blocking block 122 is between 100μm and 200μm. As long as the remaining part of the first rectangular blocking block can still be seen on the final display panel after cutting, the cutting meets the accuracy requirements. As an optional embodiment, the edge arc radius of the final rounded corner area can be 1.5mm, and accordingly, the radius of the arc-shaped blocking block can be between 1.5mm±(50μm to 100μm).

[0051] In the present disclosure, there is no special limitation on the width of the first interval between two adjacent first rectangular shielding blocks 122. Optionally, the width of the first interval between two adjacent first rectangular shielding blocks is between 10 μm and 15 μm. Limiting the width of the first interval to between 10 μm and 15 μm can reduce the difficulty of manufacturing the first rectangular shielding block 122 and the second rectangular shielding block 123, and can well shield the white edge of the initial display substrate.

[0052] In order to obtain a good shielding effect, as an optional implementation, in the same arc block arrangement sub-area, a plurality of arc-shaped shielding blocks 121 are arranged at equal intervals. Further, the second interval w between two adjacent arc-shaped shielding blocks 121 (see Figure 6 ) has a width between 10 μm and 15 μm.

[0053] As an optional implementation, in the same arc block arrangement sub-area, the arrangement pitch P of the plurality of arc-shaped shielding blocks (see Figure 6 ) is between 45 μm and 55 μm, and preferably, the arrangement pitch P is 50 μm. It should be noted here that the so-called "arrangement pitch" refers to the width midline of two adjacent arc-shaped shielding blocks ( Figure 6 The distance between the dotted lines in the figure.

[0054] The size of each arc-shaped shielding block can be determined by limiting the arrangement pitch P of the arc-shaped shielding blocks and the second interval w between two adjacent arc-shaped shielding blocks. For example, the width of each arc-shaped shielding block can be about 40μm. In the present disclosure, as an optional embodiment, 5 to 10 arc-shaped shielding blocks are arranged in the same arc-shaped block arrangement sub-area. Setting 5 to 10 arc-shaped shielding blocks in the same arc-shaped block arrangement sub-area can meet the position error of the rounded corners. In other words, as long as there are still arc-shaped shielding blocks remaining on the display panel after cutting, the cutting meets the accuracy requirements. As an optional embodiment, 7 arc-shaped shielding blocks can be set in the arc-shaped block arrangement sub-area.

[0055] As an optional implementation, seven arc-shaped shielding blocks may be set in the same arc-shaped arrangement sub-area.

[0056] As described above, the arc block arrangement sub-area and the rectangular block arrangement sub-area are located within the allowable processing accuracy range of the cutting line. In order to facilitate the identification of whether the rounded corner obtained by processing is qualified, optionally, as Figure 3 As shown, the area to be processed with the arc-shaped blocking block also includes an auxiliary blocking block arrangement sub-area between the arc-shaped block arrangement sub-area and the vertex of the corresponding corner, and the auxiliary blocking block arrangement sub-area is provided with a non-rectangular first auxiliary blocking block 140. After processing is completed, if it is detected that in addition to the arc-shaped block arrangement sub-area, there is also a non-rectangular first auxiliary blocking block 1410 on the outside of the arc-shaped block arrangement sub-area (i.e., the side away from the product area) in the corner, it means that the obtained rounded corner size is unqualified.

[0057] In order to reduce the difficulty of processing and facilitate the detection of whether there is a rectangular blocking block after processing, optionally, a non-rectangular second auxiliary blocking block 160 is provided in the area to be processed except for the area of ​​the rounded corner to be processed. The shape of the second auxiliary blocking block 160 is quite different from that of the rectangular blocking block, which facilitates the distinction between the second auxiliary blocking block 160 and the rectangular blocking block after acquiring the graphics, and more accurately determines the endpoint position of the edge arc of the rounded corner. As an optional embodiment, a third auxiliary blocking block 150 can be provided in the inner area of ​​the arc-shaped blocking block, and the shape of the third auxiliary blocking block 150 can be consistent with the shape of the first auxiliary blocking block 140. By providing the third auxiliary blocking block 150, the periphery of the product area can be better shielded and the difficulty of processing can be reduced.

[0058] Before processing the fillet, the processing equipment needs to be aligned. As an optional implementation, a positioning mark can be set on the initial substrate. Before starting processing, the position of the positioning mark is first determined.

[0059] In the present disclosure, there is no particular limitation on the specific form of the alignment mark. For example, a pattern that is easy to identify can be formed in the non-display area of ​​the initial substrate.

[0060] In the present disclosure, the non-display area of ​​the initial display substrate is provided with many shielding patterns. To facilitate identification, as an optional implementation, a notch may be formed at the corner of the initial display substrate and used as a positioning mark. Specifically, Figure 1 and 2 As shown, the corner of the initial display substrate also includes two auxiliary corner edges (auxiliary corner edge L3 and auxiliary corner edge L4) intersecting in the extension directions, so as to form a positioning notch corner at the corner of the initial display substrate with the vertex protruding toward the product area, and the vertex of the positioning notch corner is the intersection of the two auxiliary corner edges.

[0061] In order to facilitate the capture of the positioning notch angle when aligning the processing equipment, the positioning notch angle should have a relatively large size. In order to expand the size of the positioning notch angle, the vertex of the positioning notch angle can be located inside the arc block arrangement sub-area. Figure 2 and Figure 5 As shown in the figure, the vertex of the positioning notch angle is located in the arc block arrangement sub-area, and the arc-shaped shielding block located outside the vertex of the positioning notch angle includes a first arc-shaped shielding block 121a and a second arc-shaped shielding block 121b, that is, the part of the arc-shaped shielding block located on the periphery is interrupted by the positioning notch angle and divided into two parts: the first arc-shaped shielding block 121a and the second arc-shaped shielding block 121b.

[0062] In the present disclosure, there is no special limitation on other structures on the initial display substrate. For example, when the initial display substrate is used as a color filter substrate, the initial display substrate may further include a color filter layer located in the product area. For another example, the initial display substrate may further include a pixel circuit and a light-emitting element located in the product area.

[0063] As a second aspect of the present disclosure, an initial display panel is provided, comprising an initial display substrate and an initial box-matching substrate arranged in a box with the initial display substrate, wherein the initial display substrate is the initial display substrate provided in the first aspect of the present disclosure.

[0064] The initial display panel may be used to form a liquid crystal display panel. Accordingly, the initial display panel further includes a liquid crystal material layer located between the initial display substrate and the initial cell-matching substrate. A color filter layer may be provided on the initial display panel, and a pixel circuit array may be provided on the initial cell-matching substrate.

[0065] The initial display panel can also be used to form an organic light emitting diode display panel, and the initial display substrate can be provided with a pixel circuit and a light emitting element. The initial cell-matching substrate can be a packaging cover plate.

[0066] As a third aspect of the present disclosure, a method for detecting a display panel is provided, wherein the display panel is the initial display panel provided in the second aspect of the present disclosure, wherein a portion of the to-be-processed area of ​​the initial display substrate and a corresponding portion on the initial aligning substrate are removed from the initial display panel provided in the second aspect of the present disclosure. Fig. 9 As shown, the detection method comprises:

[0067] In step S110, an image of a rounded corner area of ​​the display panel is acquired;

[0068] In step S120, the position of the remaining rectangular block obtained by removing part of the material of the rectangular occluding block in the image is determined;

[0069] In step S130, the radius of the edge arc of the rounded corner area is determined according to the position of the remaining rectangular block that is closest to the edge arc of the rounded corner area;

[0070] In step S140, whether the fillet area is qualified is determined according to the fillet radius.

[0071] As described above, when the initial display panel is cut and / or ground, a portion of the entire processing area 120 is removed, and a corresponding portion of the cell substrate is also removed. Figure 7 As shown in , the remaining part of the area to be processed 120 is formed as the edge shielding area 120' of the display panel. Therefore, the shielding blocks arranged in the rectangular block arrangement sub-area are also partially removed. Since the edge shape of the rectangular shielding blocks is regular and quite different from the shape of the arc-shaped shielding blocks, the endpoints of the edge arc of the rounded corners obtained after cutting (i.e., the positions where the edge arcs intersect with the remaining parts of the rectangular shielding blocks) are also easily recognized by the detection equipment. After the detection equipment accurately identifies the two endpoints of the edge arc, the radius of the edge arc can be calculated. Since the calculation result is accurate, it is possible to accurately judge whether the rounded corners obtained by cutting are qualified.

[0072] When the initial display substrate provided by the present disclosure is used in an initial display panel, it is possible to accurately determine whether the rounded corners obtained by processing are qualified after processing is completed. Therefore, better product control can be achieved by using the display substrate provided by the present disclosure.

[0073] In the present disclosure, when the radius of the edge arc calculated in step S130 is consistent with the preset radius, the display panel is determined to be qualified; when the radius of the edge arc calculated in step S130 is inconsistent with the preset radius, the display panel is determined to be unqualified.

[0074] like Figure 8 As shown in , part of the arc-shaped shielding block is completely removed. As an optional implementation, a part of an arc-shaped shielding block is removed, and a part of the removed arc-shaped shielding block 121' remains on the display panel, and part of the arc-shaped shielding block 121 remains in the display panel.

[0075] In order to more quickly determine whether the display panel is qualified, it is also possible to determine whether the display panel is qualified by identifying whether there are rectangular blocks, arc-shaped blocks, and the shape of the rectangular blocks and the shape of the arc-shaped blocks in the image. If there are no arc-shaped blocks in the image, it means that too many areas to be processed have been removed, and the display panel is unqualified. If there are no rectangular blocks and no remaining parts of the rectangular blocks in the image, it means that too many areas to be processed have been removed, and the display panel is unqualified. If all rectangular blocks are complete, it means that too few areas to be processed have been removed, and the display panel is unqualified. If the first auxiliary block is still retained on the outside of the arc-shaped block, too little area to be processed has been removed from the surface, and the display panel is unqualified.

[0076] As a fourth aspect of the present disclosure, a display panel is provided, the display panel comprising a display substrate and a counter-box substrate arranged with the display substrate, the display substrate comprising a display area and a peripheral area arranged around the display area, the peripheral area comprising a plurality of rounded corner areas, the plurality of rounded corner areas being respectively arranged at a plurality of corners of the display substrate, the corners comprising two main edges intersecting in an extension direction, wherein at least one of the rounded corner areas comprises a final arc block arrangement sub-area and two final rectangular block arrangement sub-areas, the two main edges being respectively outer edges of the two final rectangular block arrangement sub-areas, the final arc block arrangement sub-area being arranged between the two final rectangular block arrangement sub-areas,

[0077] The display substrate also includes a plurality of remaining rectangular blocking blocks arranged in the final rectangular block arrangement sub-area and at least one arc-shaped blocking block arranged in the final arc-shaped block arrangement sub-area, wherein the arc-shaped blocking blocks protrude in a direction away from the product area, and the curvature of the arc-shaped blocking blocks is consistent with the curvature of the edge arc of the rounded corner area.

[0078] The display panel is obtained by removing part of the to-be-processed area from the initial display panel provided by the second aspect of the present disclosure. As described above, when manufacturing the display panel, the product yield is high.

[0079] 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. An initial display substrate, comprising a product area and a to-be-processed area disposed outside the product area, wherein the to-be-processed area comprises a plurality of to-be-processed rounded corner areas, wherein the plurality of to-be-processed rounded corner areas are respectively disposed at a plurality of corners of the initial display substrate, wherein the corners comprise two main edges intersecting in extension direction, wherein: At least one of the rounded corner areas to be processed includes an arc block arrangement sub-area and two rectangular block arrangement sub-areas, the two main edges are respectively outer edges of the two rectangular block arrangement sub-areas, and the arc block arrangement sub-area is arranged between the two rectangular block arrangement sub-areas, The initial display substrate also includes a plurality of rectangular blocking blocks arranged in the rectangular block arrangement sub-area and a plurality of arc-shaped blocking blocks arranged in the arc-shaped block arrangement sub-area, wherein the plurality of arc-shaped blocking blocks are arranged in parallel and spaced apart, and the plurality of arc-shaped blocking blocks all protrude in a direction away from the product area; the radius of the arc-shaped blocking block is between 1.5 mm ± (50 μm to 100 μm).

2. The initial display substrate according to claim 1, characterized in that: In the rectangular block arrangement sub-area, the multiple rectangular blocking blocks include multiple first rectangular blocking blocks and multiple second rectangular blocking blocks, the multiple first rectangular blocking blocks are arranged along the corresponding main edges, and a first interval is formed between two adjacent first rectangular blocking blocks, multiple second rectangular blocking blocks are arranged in the first interval, and the width of the first interval is smaller than the dimension of the first rectangular blocking block along the width direction of the first interval.

3. The initial display substrate according to claim 2, characterized in that: The width of the first rectangular blocking block is between 40 μm and 60 μm, the length of the first rectangular blocking block is between 100 μm and 200 μm, and the width direction of the first rectangular blocking block is consistent with the length direction of the main edge corresponding to the rectangular block arrangement sub-area where the first rectangular blocking block is located.

4. The initial display substrate according to claim 3, characterized in that: A width of a first interval between two adjacent first rectangular shielding blocks is between 10 μm and 15 μm.

5. The initial display substrate according to claim 1, characterized in that: In the same arc-shaped block arrangement sub-area, a plurality of arc-shaped shielding blocks are arranged at equal intervals.

6. The initial display substrate according to claim 5, characterized in that: The width of the second interval between two adjacent arc-shaped shielding blocks is between 10 μm and 15 μm.

7. The initial display substrate according to claim 5, characterized in that: The arrangement pitch of the plurality of arc-shaped shielding blocks is between 45 μm and 55 μm.

8. The initial display substrate according to any one of claims 1 to 7, characterized in that: Five to ten arc-shaped shielding blocks are arranged in the same arc-shaped block arrangement sub-area.

9. The initial display substrate according to any one of claims 1 to 7, characterized in that: The rounded corner area to be processed with the arc-shaped blocking block also includes an auxiliary blocking block arrangement sub-area located between the arc-shaped block arrangement sub-area and the vertex of the corresponding corner, and a non-rectangular first auxiliary blocking block is arranged in the auxiliary blocking block arrangement sub-area.

10. The initial display substrate according to any one of claims 1 to 7, characterized in that: A non-rectangular second auxiliary shielding block is arranged in an area of ​​the area to be processed except the rounded corner area to be processed.

11. The initial display substrate according to any one of claims 1 to 7, characterized in that: The corner of the initial display substrate also includes two auxiliary corner edges whose extension directions intersect, so as to form a positioning notch corner at the corner of the initial display substrate with its vertex protruding toward the product area, and the vertex of the positioning notch corner is the intersection of the two auxiliary corner edges.

12. The initial display substrate according to claim 11, characterized in that: The vertex of the positioning notch angle is located in the arc block arrangement sub-area, and the arc-shaped shielding blocks located outside the vertex of the positioning notch angle include a first arc-shaped shielding block and a second arc-shaped shielding block.

13. An initial display panel, comprising an initial display substrate and an initial box-matching substrate arranged in a box with the initial display substrate, characterized in that: The initial display substrate is the initial display substrate according to any one of claims 1 to 12.

14. A method for detecting a display panel, characterized in that: The display panel is the initial display panel according to claim 13, which is obtained by removing a part of the to-be-processed area of ​​the initial display substrate and a corresponding part on the initial box-aligning substrate, and the detection method comprises: Acquire an image of a rounded corner area of ​​the display panel; Determine the position of the remaining rectangular block in the image obtained by removing part of the material of the rectangular occluding block; Determine the radius of the edge arc of the rounded corner area according to the position of the remaining rectangular block closest to the edge arc of the rounded corner area; Whether the fillet area is qualified is determined according to the fillet radius.

15. A display panel, comprising a display substrate and a counter substrate counter-arranged with the display substrate, wherein the display substrate comprises a display area and a peripheral area arranged around the display area, wherein the peripheral area comprises a plurality of rounded corner areas, wherein the plurality of rounded corner areas are respectively arranged at a plurality of corners of the display substrate, wherein the corners comprise two main edges intersecting in extension direction, wherein: At least one of the rounded corner areas includes a final arc block arrangement sub-area and two final rectangular block arrangement sub-areas, the two main edges are respectively outer edges of the two final rectangular block arrangement sub-areas, and the final arc block arrangement sub-area is arranged between the two final rectangular block arrangement sub-areas, The display substrate also includes a plurality of remaining rectangular blocking blocks arranged in the final rectangular block arrangement sub-area and at least one arc-shaped blocking block arranged in the final arc-shaped block arrangement sub-area, wherein the arc-shaped blocking block protrudes in a direction away from the display area, and the curvature of the arc-shaped blocking block is consistent with the curvature of the edge arc of the rounded corner area; the radius of the arc-shaped blocking block is between 1.5 mm ± (50 μm to 100 μm).

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