LCD panel motherboard and LCD panel

Abstract

The present invention relates to a liquid crystal panel motherboard, comprising a first substrate and a second substrate in a relative box, a spacer is arranged between the first substrate and the second substrate, characterized in that the spacer comprises a first spacer, the liquid crystal panel motherboard comprises a plurality of liquid crystal panels defined by the first spacer, and the orthographic projection of a cutting line of the liquid crystal panel motherboard on the first substrate at least partially overlaps with the orthographic projection of the first spacer on the first substrate. The present invention also relates to a liquid crystal panel.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal product manufacturing, and in particular to a liquid crystal panel motherboard and a liquid crystal panel. Background Art

[0002] At present, the cutting solution for LCD boxes corresponding to panels of various sizes is to customize the seal (sealing glue) coating recipe (method). If it is expected to produce panels of multiple sizes at the same time, there will be great challenges in debugging the production line equipment, changing the recipe and matching personnel, especially when the production quantity demand is not large. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a liquid crystal panel motherboard and a liquid crystal panel to solve the problem of low production efficiency of corresponding multi-size panels.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in an embodiment of the present invention is: a liquid crystal panel motherboard, including a first substrate and a second substrate in a relative box, a spacer is arranged between the first substrate and the second substrate, the spacer includes a first spacer, the liquid crystal panel motherboard includes a plurality of liquid crystal panels defined by the first spacer, and the orthographic projection of the cutting line of the liquid crystal panel motherboard on the first substrate at least partially overlaps with the orthographic projection of the first spacer on the first substrate.

[0005] Optionally, a width of the first spacer in a first direction is greater than or equal to a gap value between the first substrate and the second substrate, the first direction is perpendicular to an extending direction of the cutting line, and the first direction is parallel to the first substrate.

[0006] Optionally, the spacer further includes a second spacer, and the second spacer is a columnar spacer located in the liquid crystal panel.

[0007] Optionally, the first spacer includes at least one first sub-spacer extending along a first direction from one end of the liquid crystal panel motherboard to the other end of the liquid crystal panel motherboard, and at least one second sub-spacer extending along a second direction from one end of the liquid crystal panel motherboard to the other end of the liquid crystal panel motherboard, and the first direction and the second direction intersect, so that the first sub-spacers and the second sub-spacers are cross-arranged in a grid shape.

[0008] Optionally, the first spacer includes at least one annular structure spaced and arranged from the center of the liquid crystal panel motherboard to the edge of the liquid crystal panel motherboard.

[0009] Optionally, a plurality of the first spacers are combined to form a ring-shaped unit, and the liquid crystal panel motherboard array is arranged with a plurality of the ring-shaped units.

[0010] Optionally, the first spacer is in the shape of a strip, and a plurality of the first spacers extend in different directions and are connected end to end to form the annular structure, and the annular structure is a regular or irregular polygon.

[0011] Optionally, the first spacer is in a strip shape, and a plurality of the first spacers extend in different directions and surround to form the annular structure, and there is a gap between two adjacent first spacers, so that the annular structure is semi-closed.

[0012] Optionally, the liquid crystal panel motherboard includes a central area and an edge area located outside the central area, the central area is provided with the first spacer, the edge area is provided with frame sealing glue, and the frame sealing glue is provided between the first substrate and the second substrate.

[0013] Optionally, along a direction away from the middle area, the edge area is sequentially provided with a frame sealing adhesive setting area and a binding area for binding and connecting with a flexible circuit board.

[0014] The present invention further provides a liquid crystal panel, which is formed by cutting the above-mentioned liquid crystal panel motherboard, and the cut side of the liquid crystal panel is coated with sealant.

[0015] The beneficial effects of the present invention are: a first spacer is used instead of a frame sealant to define multiple liquid crystal panels on a liquid crystal panel motherboard, the cutting position coincides with the position of the first spacer, the line width of the first spacer is small, the corresponding cutting size is more and finer, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the motherboard structure of a liquid crystal panel in the related art Figure 1 ;

[0017] Figure 2 Schematic diagram of the structure of a liquid crystal panel after cutting in the related art Figure 1 ;

[0018] Figure 3 Schematic diagram of the motherboard structure of a liquid crystal panel in the related art Figure 2 ;

[0019] Figure 4 Schematic diagram of the structure of a liquid crystal panel after cutting in the related art Figure 2 ;

[0020] Figure 5 Schematic diagram of the motherboard structure of a liquid crystal panel in the related art Figure 3 ;

[0021] Figure 6Schematic diagram of the structure of a liquid crystal panel after cutting in the related art Figure 3 ;

[0022] Figure 7 A schematic cross-sectional view showing a motherboard of a liquid crystal panel in the related art;

[0023] Figure 8 Schematic diagram showing the structure of the motherboard of the liquid crystal panel in the embodiment of the present invention Figure 1 ;

[0024] Fig. 9 Schematic diagram showing the structure of a liquid crystal panel after cutting in an embodiment of the present invention Figure 1 ;

[0025] Fig.10 Schematic diagram showing the structure of the motherboard of the liquid crystal panel in the embodiment of the present invention Figure 2 ;

[0026] Fig.11 Schematic diagram showing the structure of a liquid crystal panel after cutting in an embodiment of the present invention Figure 2 ;

[0027] Fig.12 Schematic diagram showing the structure of the motherboard of the liquid crystal panel in the embodiment of the present invention Figure 3 ;

[0028] Fig.13 Schematic diagram showing the structure of a liquid crystal panel after cutting in an embodiment of the present invention Figure 3 ;

[0029] Fig.14 A schematic diagram showing the location of the cutting line in an embodiment of the present invention;

[0030] Fig.15 A schematic cross-sectional view showing a motherboard of a liquid crystal panel according to an embodiment of the present invention;

[0031] Fig.16 Schematic diagram showing the structure of the motherboard of the liquid crystal panel in the embodiment of the present invention Figure 4 ;

[0032] Fig.17 Schematic diagram showing the structure of the motherboard of the liquid crystal panel in the embodiment of the present invention Figure 5 ;

[0033] Fig.18 Schematic diagram showing the structure of the ring unit in the embodiment of the present invention Figure 1 ;

[0034] Fig.19 Schematic diagram showing the structure of the motherboard of the liquid crystal panel in the embodiment of the present invention Figure 6 ;

[0035] Fig. 20Schematic diagram showing the ring unit in the embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the related technology, the grid unitization scheme of sealing glue is used to define multiple LCD panels. The characteristics of smart window projects are that there are many product size requirements and samples are urgently required. How to deal with the problem of rapid sample delivery of multi-size products needs to be solved urgently. The corresponding solution at this stage is: each size product is reviewed and designed for layout, and the factory compiles recipes for each size product according to the design for process production. The disadvantages of this solution are long design cycle, long production cycle, frequent recipe changes during production, repeated debugging of equipment, long equipment use time, large amount of debugging materials, etc.

[0039] refer to Figure 8-Figure 20 In view of the above problems, the present embodiment provides a liquid crystal panel motherboard, comprising a first substrate 10 and a second substrate 20 which are opposite to each other, a spacer 3 is arranged between the first substrate 10 and the second substrate 20, the spacer 3 comprises a first spacer 31, the liquid crystal panel motherboard comprises a plurality of liquid crystal panels defined by the first spacer 31, and the orthographic projection of the cutting line 2 of the liquid crystal panel motherboard on the first substrate 10 at least partially overlaps with the orthographic projection of the first spacer 31 on the first substrate 10.

[0040] Due to the different materials and manufacturing processes used for the frame sealant 1 and the spacer, the widths of the frame sealant 1 and the spacer in the first direction (the first direction is perpendicular to the extension direction of the cutting line 2, and the first direction is parallel to the first substrate 10) are different. The width of the spacer is smaller than the width of the frame sealant 1. For example, the gap between the first substrate 10 and the second substrate 20 is 9um, and the width of the spacer in the first direction (the width in the direction parallel to the substrate and perpendicular to the extension direction of the cutting line 2) can be about 9um, 11um, 18um, etc. The width of the frame sealant 1 in the first direction is generally 0.5-2mm, and the width of the spacer in the first direction is in the micron level, while the width of the frame sealant in the first direction is in the millimeter level. It can be seen that using spacers to replace the frame sealant 1 is more refined and can minimize the impact on the transmittance level of the product. The setting position and setting style of the spacer are also more diverse, thereby improving the production efficiency of multi-size products.

[0041] Figure 1 , Figure 3 and Figure 5 Shows the same LCD panel motherboard, Figure 1 , Figure 3 and Figure 5 The setting position of the cutting line is different. Figure 2 is corresponding to Figure 1 Schematic diagram of a liquid crystal panel formed by cutting in the cutting method. Figure 4 is corresponding to Figure 3 Schematic diagram of the structure of the liquid crystal panel formed by cutting in the cutting method, Figure 6 is corresponding to Figure 5 Schematic diagram of the structure of a liquid crystal panel formed by cutting using the cutting method. Figure 8 , Fig.10 and Fig.12 Shows the same LCD panel motherboard, Figure 8 , Fig.10 and Fig.12 The setting position of the cutting line is different. Fig. 9 is corresponding to Figure 8 Schematic diagram of a liquid crystal panel formed by cutting in the cutting method. Fig.11 is corresponding to Fig.10 Schematic diagram of the structure of the liquid crystal panel formed by cutting in the cutting method, Fig.13 is corresponding to Fig.12 Schematic diagram of the structure of a liquid crystal panel formed by cutting using the cutting method.

[0042] Figure 8 , Fig.10 and Fig.12 The size of the LCD panel motherboard shown in Figure 1 , Figure 3 and Figure 5The size of the LCD panel motherboard shown in Fig. 9 The size of the LCD panel in Figure 2 The size of the LCD panels in the Fig.11 The size of the LCD panel in Figure 4 The size of the LCD panels in the Fig.13 The LCD panel and Figure 6 The size of the LCD panel is the same as Figure 2 and Fig. 9 In the comparison example, it is obvious that the width of the first spacer 31 is smaller than the width of the frame sealant 1. Fig. 9 The transmittance of the LCD panel is greater than Figure 2 The transmittance of the liquid crystal panel is increased, and since the width of the first spacer 31 (the width of the first spacer 31 in a direction perpendicular to its extension direction in the figure) is small, the liquid crystal panel can be divided into more areas, which can improve the gravity mura effect of the product.

[0043] Moreover, on the same LCD panel motherboard, LCD panels of various sizes and shapes can be obtained by changing the setting method and setting position of the cutting lines, for example Figure 8 , Fig.10 and Fig.12 Different cutting schemes are shown in Fig.14 The cutting lines are shown in the positions where the cutting lines can be set. Figure 1 The LCD panel motherboard has more divided areas, so it can be cut into products of more sizes. Figure 7 and Fig.15 It is obvious that the liquid crystal panel motherboard in this embodiment has more cutting lines arranged thereon, and can be cut to form liquid crystal panels of more sizes accordingly.

[0044] Exemplarily, the width of the first spacer 31 in the first direction is 17-19 um, the first direction is perpendicular to the extending direction of the cutting line 2 , and the first direction is parallel to the first substrate 10 .

[0045] Exemplarily, the spacer 3 further includes a second spacer 32 , and the second spacer 32 is a columnar spacer located in the liquid crystal panel.

[0046] The first spacer 31 and the second spacer 32 cooperate to achieve cutting. The first spacer 31 plays a supporting role and also plays a role of a retaining wall (blocking the liquid crystal). The liquid crystal is blocked in multiple independent areas by the first spacer 31, which corresponds to multiple cutting schemes for products of various sizes and can control the risk of liquid crystal leakage during the cutting process to the greatest extent.

[0047] The second spacer 32 is a columnar spacer and may have a circular cross section, but is not limited thereto. The width of the second spacer 32 in the first direction is similar to (the difference is less than a preset value) or the same as the width of the first spacer 31 in the first direction.

[0048] By using the method of matching the first spacer 31 and the second spacer 32, the spacing between two adjacent first spacers 31 is greater than a preset value, so that the spacing between the first substrate 10 and the second substrate 20 can be ensured. There are many specific ways to set the first spacer 31. For example, the first spacer 31 includes at least one first sub-spacer 301 extending from one end of the liquid crystal panel motherboard to the other end of the liquid crystal panel motherboard along the first direction, and at least one second sub-spacer 302 extending from one end of the liquid crystal panel motherboard to the other end of the liquid crystal panel motherboard along the second direction. The first direction and the second direction intersect, so that the first sub-spacer 301 and the second sub-spacer 302 are cross-arranged in a grid shape. Figure 8 .

[0049] The spacing between two adjacent first sub-spacers 301 can be the same or different, and the spacing between two adjacent second sub-spacers 302 can be the same or different, so as to correspond to the cutting of liquid crystal panels of various sizes, for example Figure 8 In the embodiment, the distance between two adjacent first sub-spacers 301 is different, and the distance between two adjacent second sub-spacers 302 is also different, but the present invention is not limited thereto.

[0050] The angle between the first sub-spacer 301 and the second sub-spacer 302 can be set according to actual needs. For example, the angle between the first sub-spacer 301 and the second sub-spacer 302 is 90 degrees, but it is not limited to this. For example, the LCD panel motherboard is rectangular, the first sub-spacer 301 is extended along the long side extension direction of the LCD panel motherboard, and the second sub-spacer 302 is extended along the short side extension direction of the LCD panel motherboard.

[0051] Exemplarily, the first spacer 31 includes at least one annular structure spaced and arranged from the center of the liquid crystal panel motherboard to the edge of the liquid crystal panel motherboard.

[0052] The shape of the annular structure may be consistent with the shape of the liquid crystal panel motherboard. For example, if the liquid crystal panel motherboard is rectangular, then the annular structure is rectangular, that is, the first spacer 31 is in a U-shaped structure. Fig.16 .

[0053] The spacer 3 may include the first spacer 31 and the second spacer 32, or may include only the first spacer 31. Exemplarily, a plurality of the first spacers 31 surround a ring-shaped unit, and the motherboard array of the liquid crystal panel is arranged with a plurality of the ring-shaped units. Figure 17-Figure 20 , Fig.18 and Fig. 20 Different ring units are represented respectively.

[0054] The plurality of first spacers 31 are combined to form a ring-shaped unit, that is, to form an independent small unit (the smallest repeating unit). An array of the plurality of independent small units is arranged on the motherboard of the liquid crystal panel, which can match the cutting of special-shaped products.

[0055] Exemplarily, the first spacer 31 is in the shape of a strip, and a plurality of the first spacers 31 extend in different directions and are connected end to end to form the ring structure, and the ring structure is a regular or irregular polygon, referring to Fig.19 and Fig. 20 .

[0056] Exemplarily, the first spacer 31 is in a strip shape, and a plurality of the first spacers 31 extend in different directions and surround to form the annular structure, and there is a gap between two adjacent first spacers 31, so that the annular structure is semi-closed. Fig.17 and Fig.18 .

[0057] The setting of the gap causes a small amount of liquid crystal to leak near the cutting line 2, but the overall amount of liquid crystal is controllable and does not affect the overall transmittance parameters.

[0058] Exemplarily, the liquid crystal panel motherboard includes a central area and an edge area located outside the central area, the central area is provided with the first spacer 31, the edge area is provided with a frame sealing glue 1, and the frame sealing glue 1 is provided between the first substrate 10 and the second substrate 20.

[0059] The frame sealant 1 is provided to prevent leakage of liquid crystal.

[0060] Exemplarily, along the direction away from the middle area, the edge area is sequentially provided with a frame sealant 1 setting area and a binding area 5 for binding and connecting with the flexible circuit board, referring to Fig. 9 , Fig.11 and Fig.13 , the binding area is set in Figure 8 , Fig.10 and Fig.12 The lower edge of the LCD panel motherboard is shown, but the present invention is not limited to this.

[0061] The binding area 5 is arranged at the edge area to avoid liquid crystal leakage and contamination caused by cutting, ensure effective binding of the flexible circuit board, and match the drive of liquid crystal panels of any size.

[0062] The width of the binding area 5 in the direction away from the middle area is 3-5 mm, but not limited thereto.

[0063] Exemplarily, the spacer 3 is arranged on the second substrate 20, and the frame sealant 1 is arranged on the first substrate 10. The first substrate 10 is an array substrate, and the second substrate 20 is a color film substrate, but it is not limited thereto. Exemplarily, the material of the spacer 3 can be, but is not limited to, a conventional PS (spacer) material in the display industry, a resin material with high viscosity and support, or other resin materials with supporting functions. The line width design of the spacer involves the material properties and structural parameters of the spacer. Exemplarily, the height of the spacer 3 (the height in the direction perpendicular to the first substrate 10) is equal to or greater than 1:1 with the distance between the first substrate 10 and the second substrate 20 (the height of the spacer 3 is greater than the distance between the first substrate 10 and the second substrate 20); ensure the supporting capacity of the spacer 3.

[0064] The liquid crystal panel motherboard cutting process in this embodiment is as follows:

[0065] The first substrate 10 is prepared, a transparent electrode is formed on the base substrate, PI coating is performed to form an alignment layer, and a sealing glue is coated.

[0066] The second substrate 20 is prepared by forming a transparent electrode on the base substrate, forming a patterned PVX (passivation) layer, forming a patterned spacer 3, coating PI to form an alignment layer, and injecting liquid crystal.

[0067] After the first substrate 10 and the second substrate 20 are prepared, they are assembled to form a batch of standardized large-panel liquid crystal boxes. The standardized large-panel liquid crystal boxes are cut according to product size requirements, side-glued (sealant is applied to the cut side of the liquid crystal panel after cutting), and bound (bound and connected to the flexible circuit board), and the production process is completed.

[0068] The present invention also provides a liquid crystal panel, wherein the liquid crystal panel is formed by cutting the above-mentioned liquid crystal panel motherboard, and the cut side of the liquid crystal panel is coated with a sealant 4, referring to Fig. 9 , Fig.11 and Fig.13 .

[0069] After cutting, a sealant 4 is applied to the cut side of the liquid crystal panel to ensure the sealing of the liquid crystal box.

[0070] Exemplarily, the sealant 4 and the frame sealant 1 are made of the same material.

[0071] It should be noted that the liquid crystal panel can be a display panel, in which case the first substrate 10 is an array substrate and the second substrate 20 is a color film substrate, but it is not limited to this. For example, the liquid crystal panel can also be a functional panel for dimming, detection and other functions.

[0072] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A motherboard of a liquid crystal panel, comprising a first substrate and a second substrate facing each other, a spacer being arranged between the first substrate and the second substrate, characterized in that: The spacer includes a first spacer, the liquid crystal panel motherboard includes a plurality of liquid crystal panels defined by the first spacer, and an orthographic projection of a cutting line of the liquid crystal panel motherboard on the first substrate at least partially overlaps with an orthographic projection of the first spacer on the first substrate; The plurality of first spacers are surrounded by a ring-shaped unit, and the plurality of the ring-shaped units are arranged in an array on the motherboard of the liquid crystal panel; The first spacers are strip-shaped, and a plurality of the first spacers extend in different directions and surround the annular unit, and there is a gap between two adjacent first spacers, so that the annular unit is semi-closed; The liquid crystal panel motherboard includes a central area and an edge area located outside the central area, the central area is provided with the first spacer, the edge area is provided with a frame sealant, and the frame sealant is provided between the first substrate and the second substrate.

2. The liquid crystal panel motherboard according to claim 1, characterized in that: The width of the first spacer in a first direction is greater than or equal to a gap between the first substrate and the second substrate. The first direction is perpendicular to an extending direction of the cutting line, and the first direction is parallel to the first substrate.

3. The liquid crystal panel motherboard according to claim 1, characterized in that: The spacer further includes a second spacer, and the second spacer is a columnar spacer located in the liquid crystal panel.

4. The liquid crystal panel motherboard according to claim 3, characterized in that: The first spacer includes at least one first sub-spacer extending from one end of the liquid crystal panel motherboard to the other end of the liquid crystal panel motherboard along a first direction, and at least one second sub-spacer extending from one end of the liquid crystal panel motherboard to the other end of the liquid crystal panel motherboard along a second direction. The first direction and the second direction intersect, so that the first sub-spacers and the second sub-spacers are cross-arranged in a grid shape.

5. The liquid crystal panel motherboard according to claim 3, characterized in that: The first spacer includes at least one annular structure spaced and arranged from the center of the liquid crystal panel motherboard to the edge of the liquid crystal panel motherboard.

6. The liquid crystal panel motherboard according to claim 1, characterized in that: Along the direction away from the middle area, the edge area is sequentially provided with a frame sealing glue setting area and a binding area for binding and connecting with the flexible circuit board.

7. A liquid crystal panel, characterized in that: The liquid crystal panel is formed by cutting the liquid crystal panel motherboard according to any one of claims 1 to 6, and a sealant is coated on the cut side of the liquid crystal panel.

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