Display module and display device
By setting an ink layer on the cover of the display module to form a white space, the problem of black edge interfering with the identification of AOI equipment is solved, and higher accuracy measurement accuracy and less defective products are achieved.
Patent Information
- Application Number
- CN202422293141.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The display modules in the prior art affect the identification of the inner edge of the cover ink layer by the AOI device due to the black edge of the display substrate, resulting in inaccurate accuracy measurement and poor products.
An ink layer is provided on the cover plate of the display module, so that its outer edge is recessed inward to form a plurality of white space areas. The edges of the white space area are located in the second non-display area, increasing the distance between the white space area and the black edge of the display substrate, so as to facilitate identification by the detection device.
The accuracy of the accuracy of the display module is improved, and the generation of defective products is reduced. By grasping the edge measurement distance between the blank area and the first display area, it is determined whether the display module is qualified.
Smart Images
Figure CN223167205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of display technology, and in particular to a display module and a display device. Background Art
[0002] With the rapid development of electronic technology, narrow borders have become the development trend of display modules. In the related art display module, a black border (ink border) is formed at the edge of the display substrate, and the black border will affect the recognition of the inner edge of the ink layer on the cover plate in the display module by the AOI (Automatic Optic Inspection) device, resulting in the inability to measure the accuracy of the display module, and further leading to the production of defective products. Summary of the Utility Model
[0003] The purpose of the embodiments of the utility model is to provide a display module and a display device to improve the accuracy measurement accuracy of the display module, thereby reducing the production of defective products. The specific technical solutions are as follows:
[0004] An embodiment of the first aspect of the present application provides a display module, which has a first display area, a first non-display area, and a second non-display area. The first non-display area surrounds the first display area, and the second non-display area surrounds the first non-display area; the display module includes a display substrate and a cover plate; the cover plate is arranged on the display side of the display substrate; the cover plate includes an ink layer, the ink layer is located in the second non-display area, its inner edge coincides with the inner edge of the second non-display area, and its outer edge is recessed inward to form a plurality of blank areas, and the edges of the plurality of blank areas are located in the second non-display area.
[0005] In some embodiments of the present application, the ink layer has a first side and a second side arranged opposite to each other, and a third side and a fourth side arranged opposite to each other;
[0006] The plurality of blank areas are respectively formed on the first side, the third side, and the fourth side.
[0007] In some embodiments of the present application, the cover plate further includes: an ultra-thin glass layer;
[0008] The ultra-thin glass layer is arranged between the display substrate and the ink layer, and extends from the first display area to the second non-display area; the outer edge of the ultra-thin glass layer is located in the second non-display area.
[0009] In some embodiments of the present application, the plurality of blank areas include: a first blank area;
[0010] There is a gap between the orthographic projection of the innermost edge of the first blank area on the display substrate and the orthographic projection of the outer edge of the ultra-thin glass layer on the display substrate.
[0011] In some embodiments of the present application, the multiple blank areas include: a second blank area;
[0012] The orthographic projection of the innermost edge of the second blank area on the ultra-thin glass layer coincides with the outer edge of the ultra-thin glass layer.
[0013] In some embodiments of the present application, the multiple blank areas further include: a second blank area;
[0014] The minimum distance between the edge of the second blank area and the edge of the first display area is less than the minimum distance between the edge of the first blank area and the edge of the first display area.
[0015] In some embodiments of the present application, the innermost edges of the first blank area and the second blank area are both parallel to the edge of the first display area.
[0016] In some embodiments of the present application, the numerical range of the distance between the inner edge of the ink layer and the outer edge of the ultra-thin glass layer is: 0.35 - 0.65 mm;
[0017] The numerical range of the distance between the innermost edge of the first blank area and the outer edge of the ultra-thin glass layer is: 0.55 - 0.85 mm;
[0018] The numerical range of the distance between the innermost edge of the first blank area and the inner edge of the ink layer is: 1.05 - 1.35 mm;
[0019] The numerical range of the distance between the innermost edge of the first blank area and the edge of the first display area is: greater than or equal to 1.4 mm;
[0020] The numerical range of the distance between the outer edge of the ultra-thin glass layer and the edge of the first display area is: greater than or equal to 0.7 mm.
[0021] In some embodiments of the present application, the display substrate has a second display area and a third non-display area surrounding the second display area; the second display area coincides with the first display area of the display module; the outer edge of the third non-display area is located within the second non-display area, or, the outer edge of the third non-display area coincides with the outer edge of the second non-display area;
[0022] A light-shielding layer is provided on the side of the display substrate close to the cover plate; the light-shielding layer is located in the third non-display area, and the inner edge of the light-shielding layer is located in the first non-display area.
[0023] In some embodiments of the present application, the cover plate further includes: a protective layer; the protective layer is disposed on a side of the ink layer away from the display substrate and extends from the first display area to the second non-display area; an outer edge of the protective layer coincides with an outer edge of the second non-display area;
[0024] The cover plate and the display substrate are fixed by a first adhesive layer.
[0025] An embodiment of the second aspect of the present application provides a display device, including the display module of any one of the embodiments of the first aspect.
[0026] Beneficial effects of the embodiments of the present application:
[0027] The display module of the embodiment of the present application includes a display substrate and a cover plate; the cover plate includes an ink layer, the ink layer is located in the second non-display area, an inner edge of the ink layer coincides with an inner edge of the second non-display area, an outer edge of the ink layer is recessed inward to form a plurality of blank areas, and edges of the blank areas are located in the second non-display area; thus arranged, the edges of the blank areas are located outside the inner edge of the ink layer, and the distances between the edges of the blank areas and the edges of the first display area and the black border of the display substrate are greater than the distances between the inner edge of the ink layer and the edges of the first display area and the black border of the display substrate. The larger the distance, the easier the edge is to be recognized by the detection device. Therefore, compared with recognizing the inner edge of the ink layer, the detection device is less likely to be interfered by the black border when recognizing the edges of the blank areas, that is, the edges of the blank areas are more easily detected by the detection device than the inner edge of the ink layer; thus, when measuring the precision of the display module, the edges of the first display area and the blank areas can be grabbed, the distance between the two is measured, and whether the display module is qualified is judged by whether the distance between the two is within the standard range, so as to improve the accuracy of the precision measurement of the display module, thereby reducing the generation of defective products.
[0028] The display device of the embodiment of the present application includes the display module of any one of the embodiments of the first aspect, and the edges of the blank areas are located outside the inner edge of the ink layer, and the distances between the edges of the blank areas and the edges of the first display area and the black border of the display substrate are greater than the distances between the inner edge of the ink layer and the edges of the first display area and the black border of the display substrate. The larger the distance, the easier the edge is to be recognized by the detection device. Therefore, compared with recognizing the inner edge of the ink layer, the detection device is less likely to be interfered by the black border when recognizing the edges of the blank areas, that is, the edges of the blank areas are more easily detected by the detection device than the inner edge of the ink layer; thus, when measuring the precision of the display module, the edges of the first display area and the blank areas can be grabbed, the distance between the two is measured, and whether the display module is qualified is judged by whether the distance between the two is within the standard range, so as to improve the accuracy of the precision measurement of the display module, thereby reducing the generation of defective products.
[0029] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.
[0031] Figure 1 Structural schematic diagram of the display module according to the first embodiment of the present application;
[0032] Figure 2 is Figure 1 A-A cross-sectional view of
[0033] Figure 3 is Figure 1 Partial enlarged schematic view at Q of
[0034] Figure 4 is Figure 1 B-B cross-sectional view of
[0035] Figure 5 is Figure 1 C-C cross-sectional view of
[0036] Figure 6 Structural schematic diagram of the display module according to the second embodiment of the present application;
[0037] Figure 7 is Figure 6 D-D cross-sectional view of
[0038] Figure 8 Flowchart of the preparation method of the display module according to the embodiment of the present application;
[0039] Figure 9 Structural schematic diagram of the display module according to the first embodiment of the present application before being integrally cut;
[0040] Figure 10 is Figure 9 E-E cross-sectional view of
[0041] Figure 11 is Figure 9 F-F cross-sectional view of
[0042] Figure 12 is Figure 9 G-G cross-sectional view of
[0043] Description of the reference numerals:
[0044] The first display area AA1; the second display area AA2; the first non-display area VA1; the second non-display area VA2; the third non-display area VA3; the blank area B; the first blank area B1; the innermost edge B11 of the first blank area; the second blank area B2; the innermost edge B21 of the second blank area; the third blank area B3; the innermost edge B31 of the third blank area; the fourth blank area B4; the innermost edge B41 of the fourth blank area; the display substrate 100; the light-shielding layer 110; the black edge 111; the cover plate 200; the ink layer 210; the inner edge 211 of the ink layer; the outer edge 212 of the ink layer; the ultra-thin glass layer 220; the outer edge 221 of the ultra-thin glass layer; the protective layer 230; the second adhesive layer 240; the first adhesive layer 300; the laser P. Detailed implementation manners
[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art based on this application belong to the scope of protection of the present invention.
[0046] With the rapid development of electronic technology, narrow bezels have become the development trend of display modules. In the display modules in the related art, a black edge (ink edge) is formed at the edge of the display substrate, and the black edge will affect the recognition of the inner edge of the ink layer of the cover plate in the display module by the AOI (Automatic Optic Inspection) device, resulting in the inability to measure the accuracy of the display module, and further leading to the generation of defective products. To solve the above technical problems, the embodiments of the present application propose a display module and a display device.
[0047] For the convenience of description, we define the side close to the center of the display module as the inner side, and the side far from the center of the display module as the outer side.
[0048] As Figure 1 and Figure 2 shown, Figure 1 is a schematic structural diagram of the display module according to the first embodiment of the present application, Figure 2 is Figure 1 the A-A cross-sectional view of, the embodiments of the first aspect of the present application propose a display module, the display module has a first display area AA1, a first non-display area VA1 and a second non-display area VA2, the first non-display area VA1 surrounds the first display area AA1, and the second non-display area VA2 surrounds the first non-display area VA1; as Figure 1As shown, the area where the dot pattern is located corresponds to the first display area AA1, the area where the cross-hatched pattern is located corresponds to the second non-display area VA2, and the patternless area between the two corresponds to the first display area AA1; the display module includes a display substrate 100 (panel) and a cover plate 200 (Cover). Specifically, the display substrate 100 has a display side for displaying a picture and a non-display side where no picture needs to be displayed; the cover plate 200 is disposed on the display side of the display substrate 100; the cover plate 200 includes an ink layer 210, and the ink layer 210 is located in the second non-display area VA2. The inner edge 211 of the ink layer coincides with the inner edge of the second non-display area VA2, and the outer edge 212 of the ink layer is recessed inward to form a plurality of blank areas B, and the edges of the plurality of blank areas B are located in the second non-display area VA2.
[0049] The ink layer 210 can play a role in blocking the light at the edge of the display substrate 100, can avoid light leakage at the edge of the display module, and is beneficial to improving the display effect.
[0050] The display module according to the embodiment of the present application includes a display substrate 100 and a cover plate 200; the cover plate 200 includes an ink layer 210, and the ink layer 210 is located in the second non-display area VA2. The inner edge 211 of the ink layer coincides with the inner edge of the second non-display area VA2, and the outer edge 212 of the ink layer is recessed inward to form a plurality of blank areas B, and the edges of the blank areas B are located in the second non-display area VA2; thus arranged, the edges of the blank areas B are located outside the inner edge 211 of the ink layer, and the distance between the edges of the blank areas B and the edges of the first display area AA1 and the black edge 111 of the display substrate 100 is greater than the distance between the inner edge 211 of the ink layer and the edges of the first display area AA1 and the black edge 111 of the display substrate 100. The edge with a larger spacing is more easily recognized by the detection device. Therefore, compared with recognizing the inner edge 211 of the ink layer, the detection device is less likely to be interfered by the black edge 111 when recognizing the edges of the blank areas B, that is, the edges of the blank areas B are more easily detected by the detection device than the inner edge 211 of the ink layer; thus, when measuring the accuracy of the display module, the edges of the first display area AA1 and the edges of the blank areas B can be captured, and the distance between the two is measured. Whether the display module is qualified is judged by whether the distance between the two is within the standard range, so as to improve the accuracy of the accuracy measurement of the display module, thereby reducing the generation of defective products.
[0051] In the first embodiment of the present application, as Figure 1 shown, the ink layer 210 has a first side and a second side that are oppositely arranged, and a third side and a fourth side that are oppositely arranged; a plurality of blank areas B are respectively formed on the first side, the third side and the fourth side. The blank areas B are provided on three sides of the ink layer 210, and the third side and the fourth side are oppositely arranged, which is beneficial to detecting the symmetry of the display module and improving the alignment accuracy and measurement accuracy.
[0052] In some other embodiments of the present application, the blank areas B may also be provided only on two sides adjacent to the ink layer 210, or on all four sides. The present application does not make any limitations in this regard.
[0053] Optionally, as Figure 1 shown, the ink layer 210 may be annular, and the portion of the outer edge 212 of the ink layer that does not sink inward coincides with the outer edge of the second non-display area VA2. The first side may be the upper side of the display module during use, the second side may be the lower side of the display module during use, and the third side and the fourth side are respectively the left side and the right side of the display module during use.
[0054] In the first embodiment of the present application, as Figures 1 to 3 shown, Figure 3 is Figure 1 a partial enlarged schematic view of the Q position of
[0055] In the first embodiment of the present application, as Figures 1 to 4 shown, Figure 4 is Figure 1 a cross-sectional view taken along line B-B of Figure 3 The multiple blank areas B include a first blank area B1; there is a gap between the positive projection of the innermost edge B11 of the first blank area on the display substrate 100 and the positive projection of the outer edge 221 of the ultra-thin glass layer on the display substrate 100, corresponding to
[0056] In the first embodiment of the present application, as Figure 3 shown, the multiple blank areas B further include a second blank area B2; the minimum distance between the edge of the second blank area B2 and the edge of the first display area AA1 is less than the minimum distance between the edge of the first blank area B1 and the edge of the first display area AA1 (i.e., Figure 3The depth of the inward depression of the outer edge 212 of the ink layer corresponding to the second blank area B2 is greater than the depth of the inward depression of the outer edge 212 of the ink layer corresponding to the first blank area B1; that is, the distance d). When the orthographic projection of the edge of the second blank area B2 on the ink layer 210 is spaced from the ink layer 210, the distance between the innermost edge B21 of the second blank area and the outer edge 221 of the ultra-thin glass layer is closer than the distance between the innermost edge B11 of the first blank area and the outer edge 221 of the ultra-thin glass layer, which is convenient for observing the position of the outer edge of the ultra-thin glass layer 220; when the orthographic projection of the edge of the second blank area B2 on the ink layer 210 has an overlapping area with the ink layer 210, the innermost edge B21 of the second blank area is located inside the ultra-thin glass layer 220, and the outer edge 221 of the ultra-thin glass layer can be directly observed from the display side of the display panel, which is convenient for determining the position of the outer edge of the ultra-thin glass, so as to judge whether the edge of the ultra-thin glass layer 220 fails.
[0057] In the first embodiment of the present application, as Figure 3 and Figure 5 shown, Figure 5 is Figure 1 C-C cross-sectional view of, the orthographic projection of the innermost edge B21 of the second blank area on the ultra-thin glass layer 220 coincides with the outer edge 221 of the ultra-thin glass layer; with such a setting, the position of the outer edge 221 of the ultra-thin glass layer can be intuitively and quickly determined, so as to determine the integrity of the ultra-thin glass layer 220 and prevent it from failing. For example: during the preparation of the display module, the cover plate 200 and the display substrate 100 can be fixed first and then cut integrally to achieve a narrow bezel; laser cutting is used during cutting, and the laser heat affects the edge of the ultra-thin glass layer 220 to break and cause the display module to bend and fail; by using the above setting method of the second blank area B2, it can be judged whether the ultra-thin glass layer 220 is cut during cutting by whether there is a second blank area B2. When the first side, the third side, and the fourth side of the display module all have a second blank area B2, the ultra-thin glass layer 220 is not cut; when there is no second blank area B2 at the position where the second blank area B2 should be provided in the display module, it means that the ultra-thin glass layer 220 is cut. The inspection method is simple and intuitive, which is beneficial to improving production efficiency.
[0058] Optionally, the maximum distance between the innermost edge B21 of the second blank area and the outer edge 212 of the ink layer is 0.55 mm. In this way, during the assembly of the whole machine, the second blank area B2 will be covered by the middle frame of the whole machine (not shown in the figure) and will not affect the product.
[0059] In the first embodiment of the present application, as Figure 3As shown, the innermost edge B11 of the first blank area and the innermost edge B21 of the second blank area are both arranged parallel to the edge of the first display area AA1, which is convenient for the AOI device to grasp the edge and is conducive to subsequent precision measurement.
[0060] Optionally, both the first blank area B1 and the second blank area B2 can be rectangular. The rectangular first blank area B1 and second blank area B2 have regular shapes, which is convenient for processing.
[0061] In some other embodiments of the present application, the shapes of the first blank area B1 and the second blank area B2 can also be trapezoids, parallelograms and other shapes, and the present application does not limit this.
[0062] Optionally, in Figure 1 the shown embodiment, the number of the first blank areas B1 is 6, and the 6 first blank areas B1 are evenly distributed on the first side, the third side and the fourth side of the ink layer 210, and are located at positions close to the four corners of the display module; the number of the second blank areas B2 can be 3, and the 3 second blank areas B2 are evenly distributed on the first side, the third side and the fourth side of the ink layer 210, and are located at the middle positions of the long side or the wide side of the display module. Such a setting makes it easier to measure the symmetry of the display module, thereby improving the detection accuracy.
[0063] In the first embodiment of the present application, as Figure 3 shown, the numerical range of the distance a between the inner edge 211 of the ink layer and the outer edge 221 of the ultra-thin glass layer is 0.35 - 0.65 mm, for example, 0.35 mm, 0.4 mm, 0.5 mm, 0.6 mm or 0.65 mm; the numerical range of the distance b between the innermost edge B11 of the first blank area and the outer edge 221 of the ultra-thin glass layer is: 0.55 - 0.85 mm, for example, 0.55 mm, 0.6 mm, 0.7 mm, 0.8 mm or 0.85 mm; the numerical range of the distance c between the innermost edge B11 of the first blank area and the inner edge 211 of the ink layer is: 1.05 - 1.35 mm, for example, 1.05 mm, 1.1 mm, 1.2 mm, 1.3 mm or 1.35 mm; the numerical range of the distance d between the outer edge 221 of the ultra-thin glass layer and the edge of the first display area AA1 is: greater than or equal to 0.7 mm; the numerical range of the distance e between the innermost edge B11 of the first blank area and the edge of the first display area AA1 is: greater than or equal to 1.4 mm. Within the above numerical ranges, on the one hand, it is convenient for the detection device to grasp each edge and ensure the detection accuracy; on the other hand, it is convenient to improve the alignment accuracy of the display module and reduce the occurrence of the situation where the ultra-thin glass layer 220 fails due to cutting the ultra-thin glass layer 220 during integral cutting.
[0064] In the first embodiment of the present application, as Figure 1 andFigure 2 As shown, the display substrate 100 has a second display area AA2 and a third non-display area VA3 surrounding the second display area AA2; the second display area AA2 coincides with the first display area AA1 of the display module; the outer edge of the third non-display area VA3 coincides with the outer edge of the second non-display area VA2; a light-shielding layer 110 is provided on the side of the display substrate 100 close to the cover plate 200; the light-shielding layer 110 is located in the third non-display area VA3, and the inner edge (black edge 111) of the light-shielding layer 110 is located in the first non-display area VA1. The light-shielding layer 110 has a light-shielding effect to prevent light leakage at the edge of the display module; optionally, the light-shielding layer 110 can be black paint.
[0065] In some other embodiments of the present application, the outer edge of the third non-display area VA3 may also be located within the second non-display area VA2.
[0066] In the first embodiment of the present application, as Figure 2 shown, the cover plate 200 further includes a protective layer 230; the protective layer 230 is provided on the side of the ink layer 210 away from the display substrate 100 and extends from the first display area AA1 to the second non-display area VA2; the outer edge of the protective layer 230 coincides with the outer edge of the second non-display area VA2; the cover plate 200 and the display substrate 100 are fixed by a first adhesive layer 300. The protective layer 230 is used to protect the film layer located below it, which is beneficial to extending the service life of the display module; the first adhesive layer 300 is used for fixing, and the fixing method is simple and reliable; the protective layer 230 and the ultra-thin glass layer 220 can be fixed by a second adhesive layer 240, and the ink layer 210 is located between the protective layer 230 and the second adhesive layer 240; optionally, both the first adhesive layer 300 and the second adhesive layer 240 can be OCA (Optically Clear Adhesive); the first adhesive layer 300 and the second adhesive layer 240 can extend from the first display area AA1 to the second non-display area VA2 to ensure the reliability of bonding. The material of the protective layer 230 can be PET (Polyethylene terephthalate) or CPI (transparent polyimide).
[0067] The display module of the embodiment of the present application is particularly suitable for a display device adopting the COE (Color Filter on Encapsulation) process.
[0068] In the second embodiment of the present application, as Figure 6 and Figure 7 shown, Figure 6 is a schematic structural diagram of the display module of the second embodiment of the present application, Figure 7 is Figure 6The D-D cross-sectional view. In the second embodiment of the present application, the display module may include only the second blank area B2 and not include the first blank area B1.
[0069] As Figure 8 shown, Figure 8 The flowchart of the manufacturing method of the display module according to the embodiment of the present application. The embodiment of the second aspect of the present application proposes a manufacturing method of a display module for manufacturing the display module of any embodiment of the first aspect, including:
[0070] S1. Provide a display substrate 100 and a cover plate 200, and dispose the cover plate 200 on the display side of the display substrate 100;
[0071] S2. Align the display substrate 100 and the cover plate 200;
[0072] S3. Fix the aligned display substrate 100 and cover plate 200 together to form a display module.
[0073] For the display module prepared by the manufacturing method of the display module according to the embodiment of the present application, the distance between the edge of the blank area B and the edge of the first display area AA1 and the black edge 111 of the display substrate 100 is greater than the distance between the inner edge 211 of the ink layer and the edge of the first display area AA1 and the black edge 111 of the display substrate 100. The edge with a larger spacing is more easily recognized by the detection device. Therefore, compared with recognizing the inner edge 211 of the ink layer, the detection device is less likely to be interfered by the black edge 111 when recognizing the edge of the blank area B, that is, the edge of the blank area B is more easily detected by the detection device than the inner edge 211 of the ink layer; thus, when measuring the precision of the display module, the edge of the first display area AA1 and the edge of the blank area B can be captured, and the distance between the two is measured. Whether the display module is qualified is judged by whether the distance between the two is within the standard range, so as to improve the accuracy of the precision measurement of the display module and reduce the number of defective products.
[0074] The cover plate 200 is fixed together with the display substrate 100 to form a display module; in order to achieve a narrow bezel, the cover plate 200 and the display substrate 100 can also be aligned and fixed first, and then cut to form a display module. The manufacturing method of the display module according to the embodiment of the present application will be described in detail below.
[0075] In some embodiments of the present application, as Figures 9 to 12 shown, Figure 9 The structural schematic diagram of the display module before being integrally cut according to the first embodiment of the present application, Figure 10 is Figure 9 the E-E cross-sectional view of Figure 11 is Figure 9 the F-F cross-sectional view of Figure 12 isFigure 9 Cross-sectional view of G-G, showing that the substrate 100 has a second display area AA2 and a third non-display area VA3 surrounding the second display area AA2. The outer edge of the third non-display area VA3 is located within the second non-display area VA2. The cover plate 200 further includes an ultra-thin glass layer 220, which is disposed between the display substrate 100 and the ink layer 210 and extends outward from the first display area AA1 to the second non-display area VA2. The outer edge 221 of the ultra-thin glass layer is located within the second non-display area VA2. The plurality of blank areas B include a third blank area B3. There is a gap between the positive projection of the innermost edge B31 of the third blank area on the display substrate 100 and the positive projection of the outer edge 221 of the ultra-thin glass layer on the display substrate 100.
[0076] S2. Align the display substrate 100 and the cover plate 200, including:
[0077] Step 11. Use a detection device (AOI) to capture the inner edge 211 of the ink layer, the outer edge 221 of the ultra-thin glass layer, and the innermost edge B31 of the third blank area, and measure the distance between the inner edge 211 of the ink layer and the outer edge 221 of the ultra-thin glass layer, the distance between the innermost edge B31 of the third blank area and the outer edge 221 of the ultra-thin glass layer, and the distance between the innermost edge B31 of the third blank area and the inner edge 211 of the ink layer. Herein, "capture" means scanning the display module through the camera of the detection device, collecting images, and obtaining edge position information.
[0078] The ultra-thin glass layer 220 comes in together with the cover plate 200. Through the above values, it can be determined whether the required edges can be captured during the subsequent precision detection of the display module.
[0079] Step 12. Use the detection device to capture the outer edge 221 of the ultra-thin glass layer and the edge of the first display area AA1, and measure the distance between the two at different positions to obtain a plurality of first distances.
[0080] Step 13. Adjust the relative positions of the cover plate 200 and the display substrate 100 according to the values of the plurality of first distances, so that the plurality of first distances are all within the first preset range, and the values of the first distances on the opposite sides are equal.
[0081] For example, the first distances of the third side and the fourth side are measured respectively, and the numerical values of the first distances of the third side and the fourth side are made equal to ensure the symmetry of the display module after alignment and fitting. Compared with the conventional alignment of the inner edge 211 of the ink layer (the inner edge of the second non-display area VA2) and the display substrate 100, in the method for preparing the display module according to the embodiments of the present application, by grabbing the outer edge 221 of the ultra-thin glass layer and the display substrate 100 for alignment, the tolerance of the ultra-thin glass layer 220 relative to the inner edge of the second non-display area VA2 is eliminated, and the shape tolerance of the ultra-thin glass layer 220 is smaller than the tolerance of the second non-display area VA2. Therefore, the relative error of the ultra-thin glass layer 220 relative to the cutting line of the Shape Cut (shape cutting) is reduced, and the risk that the outer edge 221 of the ultra-thin glass layer exceeds the cutting line during attachment is reduced. The alignment accuracy is higher, and the occurrence of the situation where the edge of the ultra-thin glass layer 220 is broken due to the laser thermal influence, resulting in the bending failure of the module, is reduced. Optionally, the numerical value range of the first preset range can be greater than or equal to 0.7 mm.
[0082] In some embodiments of the present application, as Figures 9 to 12 shown, the edge of the second display area AA2 coincides with the edge of the first display area AA1; S3. Fix the aligned display substrate 100 and the cover plate 200 together to form a display module, including:
[0083] Step 21. Fix the aligned display substrate 100 and the cover plate 200 together;
[0084] Step 22. Use a detection device to grab the innermost edge B31 of the third blank area and the edge of the first display area AA1, and measure the distance between the two;
[0085] Step 23. If the distance between the two is within the second preset range, integrally cut the fixedly connected cover plate 200 and the display substrate 100 along the cutting line to obtain a display module.
[0086] In the above process, the innermost edge B31 of the third blank area and the edge of the first display area AA1 are grabbed by the detection device, and there is no need to grab the inner edge 211 of the ink layer, which solves the problem in the related art that the accuracy detection of VA (non-display area)-AA (display area) is inaccurate due to the interference of the detection device on the recognition of the inner edge 211 of the ink layer, resulting in the inability to measure the accuracy of the display module.
[0087] Optionally, the numerical value range of the second preset range can be greater than or equal to 1.4 mm.
[0088] Optionally, the Shape Cut (shape cutting) can use laser P to cut the display module, and the position of the cutting line can refer to Figures 10 to 12The dashed line below the medium laser P, and the specific position of the cutting line can be 0.2 mm outward from the outer edge 221 of the ultra-thin glass layer.
[0089] The multiple blank areas B may further include a fourth blank area B4. The positive projection of the innermost edge B41 of the fourth blank area on the ultra-thin glass layer 220 coincides with the outer edge 221 of the ultra-thin glass layer.
[0090] It can be understood that the third blank area B3 forms the first blank area B1 after integral cutting, and the fourth blank area B4 forms the second blank area B2 after integral cutting; correspondingly, the second preset range corresponds to the distance e between the innermost edge B11 of the first blank area and the edge of the first display area AA1.
[0091] The ultra-thin glass layer 220 comes in together with the cover plate 200, and the outer shape of the ultra-thin glass layer 220 relative to the display substrate 100 is a retracted design. The incoming material of the cover plate 200 is larger than the cutting line shape of Shape Cut. By setting the blank area B on the cover plate 200, that is, making a partial exposed white design, the relative position of the ultra-thin glass layer 220 relative to the Shape Cut edge can be intuitively seen after Shape Cut, thereby determining whether there is a risk of bending failure of the display module, and at the same time ensuring that the accuracy of the display module can be detected.
[0092] An embodiment of the third aspect of the present application proposes a display device, including the display module of any embodiment of the first aspect.
[0093] The display device of the embodiment of the present application includes the display module of any embodiment of the first aspect. The edge of the blank area B is located outside the inner edge 211 of the ink layer. The distances between the edge of the blank area B and the edge of the first display area AA1 and the black edge 111 of the display substrate 100 are greater than the distances between the inner edge 211 of the ink layer and the edge of the first display area AA1 and the black edge 111 of the display substrate 100. The edge with a larger spacing is more easily recognized by the detection device. Therefore, compared with recognizing the inner edge 211 of the ink layer, the detection device is less likely to be interfered by the black edge 111 when recognizing the edge of the blank area B, that is, the edge of the blank area B is more easily detected by the detection device than the inner edge 211 of the ink layer; thus, when measuring the accuracy of the display module, the edge of the first display area AA1 and the edge of the blank area B can be captured, and the distance between the two is measured. Whether the display module is qualified is judged by whether the distance between the two is within the standard range, so as to improve the accuracy measurement accuracy of the display module, thereby reducing the generation of defective products.
[0094] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are all included in the protection scope of the present utility model.
Claims
1. A display module, characterized in that, It has a first display area, a first non-display area, and a second non-display area. The first non-display area surrounds the first display area, and the second non-display area surrounds the first non-display area; the display module includes: A display substrate; A cover plate disposed on the display side of the display substrate; the cover plate includes an ink layer located in the second non-display area, the inner edge of which coincides with the inner edge of the second non-display area, and the outer edge of which is recessed inward to form a plurality of blank areas, and the edges of the plurality of blank areas are located in the second non-display area.
2. The display module according to claim 1, wherein The ink layer has a first side and a second side disposed opposite to each other, and a third side and a fourth side disposed opposite to each other; The plurality of blank areas are respectively formed on the first side, the third side, and the fourth side.
3. The display module according to claim 1, wherein The cover plate further includes: an ultra-thin glass layer; The ultra-thin glass layer is disposed between the display substrate and the ink layer and extends from the first display area outward to the second non-display area; the outer edge of the ultra-thin glass layer is located in the second non-display area.
4. The display module according to claim 3, wherein The plurality of blank areas include: a first blank area; There is a gap between the orthographic projection of the innermost edge of the first blank area on the display substrate and the orthographic projection of the outer edge of the ultra-thin glass layer on the display substrate.
5. The display module according to claim 3 or 4, wherein The plurality of blank areas include: a second blank area; The orthographic projection of the innermost edge of the second blank area on the ultra-thin glass layer coincides with the outer edge of the ultra-thin glass layer.
6. The display module according to claim 4, wherein The plurality of blank areas further include: a second blank area; The minimum distance between the edge of the second blank area and the edge of the first display area is less than the minimum distance between the edge of the first blank area and the edge of the first display area.
7. The display module according to claim 6, wherein The innermost edges of the first blank area and the second blank area are both arranged parallel to the edge of the first display area.
8. The display module according to claim 4, wherein The numerical range of the distance between the inner edge of the ink layer and the outer edge of the ultra-thin glass layer is: 0.35 - 0.65 mm; The numerical range of the distance between the innermost edge of the first blank area and the outer edge of the ultra-thin glass layer is: 0.55 - 0.85 mm; The numerical range of the distance between the innermost edge of the first blank area and the inner edge of the ink layer is: 1.05 - 1.35 mm; The numerical range of the distance between the innermost edge of the first blank area and the edge of the first display area is: greater than or equal to 1.4 mm; The numerical range of the distance between the outer edge of the ultra-thin glass layer and the edge of the first display area is: greater than or equal to 0.7 mm.
9. The display module according to claim 1, wherein The display substrate has a second display area and a third non-display area surrounding the second display area; the second display area coincides with the first display area of the display module; the outer edge of the third non-display area is located within the second non-display area, or the outer edge of the third non-display area coincides with the outer edge of the second non-display area. A light-shielding layer is provided on a side of the display substrate close to the cover plate; the light-shielding layer is located in the third non-display area, and the inner edge of the light-shielding layer is located in the first non-display area.
10. The display module according to claim 1, wherein The cover plate further includes: a protective layer; the protective layer is provided on a side of the ink layer away from the display substrate and extends from the first display area to the second non-display area; the outer edge of the protective layer coincides with the outer edge of the second non-display area. The cover plate and the display substrate are fixed by a first adhesive layer.
11. A display device, characterized in that, It includes the display module according to any one of claims 1 to 10.