Liquid crystal panel and display device

Abstract

The utility model provides a liquid crystal panel and a display device. The liquid crystal panel comprises a first substrate, a second substrate and a frame sealing structure, the first substrate and the second substrate are oppositely arranged, the frame sealing structure is arranged between the first substrate and the second substrate, the frame sealing structure comprises a body and at least one liquid crystal filling opening, the frame sealing structure is annular, and the first substrate, the second substrate and the frame sealing structure form a liquid crystal box. The liquid crystal filling opening penetrates through the main body of the frame sealing structure, the liquid crystal filling opening is configured to circulate liquid crystal filled into the liquid crystal box in the liquid crystal filling stage, and the length of the liquid crystal filling opening on the liquid crystal circulation section is smaller than or equal to 0.8 mm.

Description

Technical Field

[0001] At least one embodiment of the utility model relates to a liquid crystal panel and a display device. Background Art

[0002] At present, liquid crystal displays are widely used in people's daily life, especially liquid crystal displays with narrow bezels, which are attracting more and more attention due to their many advantages, such as reducing the visual interference of the screen edge, and the narrow bezel design reduces the overall volume of the display to save space, etc. Utility Model Content

[0003] At least one embodiment of the utility model provides a liquid crystal panel and a display device, so as to control the speed of filling liquid crystal during the liquid crystal filling process of manufacturing the liquid crystal panel, and prevent the risk of bubbles generated during the liquid crystal filling process and the overflow of the sealing glue formed after the liquid crystal filling.

[0004] At least one embodiment of the utility model provides a liquid crystal panel, which includes a first substrate and a second substrate that are relatively arranged, and a sealing frame structure arranged between the first substrate and the second substrate, the sealing frame structure includes a main body and at least one liquid crystal injection opening, the sealing frame structure is annular, and the first substrate, the second substrate, and the sealing frame structure form a liquid crystal box, the liquid crystal injection opening runs through the main body of the sealing frame structure, the liquid crystal injection opening is configured to flow liquid crystal injected into the liquid crystal box during the liquid crystal filling stage, and the length of the liquid crystal injection opening on the liquid crystal flow cross section is less than or equal to 0.8 mm.

[0005] For example, in the liquid crystal panel provided by at least one embodiment of the present invention, the length of the liquid crystal injection opening on the liquid crystal flow cross section is greater than or equal to 0.3 mm.

[0006] For example, according to the liquid crystal panel provided by at least one embodiment of the present invention, the main body of the sealing frame structure protrudes out of the liquid crystal box at the liquid crystal injection opening so that the size of the liquid crystal flow channel at the liquid crystal injection opening is larger than the size of the main body in a direction perpendicular to its extension direction.

[0007] For example, according to the liquid crystal panel provided by at least one embodiment of the present invention, the sealing frame structure further includes a sealing member, and the sealing member is configured to seal the liquid crystal injection opening so that the liquid crystal box is a sealed box.

[0008] For example, in the liquid crystal panel provided by at least one embodiment of the present invention, the size of the liquid crystal box is 1 inch to 17 inches.

[0009] For example, in the liquid crystal panel provided by at least one embodiment of the present invention, the thickness of the liquid crystal cell is 3 micrometers to 60 micrometers.

[0010] For example, in the liquid crystal panel provided by at least one embodiment of the present invention, the size of the liquid crystal box is 1 inch to 6 inches, and the number of the liquid crystal injection opening is one.

[0011] For example, in a liquid crystal panel provided by at least one embodiment of the present invention, the size of the liquid crystal box is 6 inches to 17 inches, and the number of the liquid crystal injection openings is multiple.

[0012] For example, according to the liquid crystal panel provided by at least one embodiment of the present invention, a plurality of liquid crystal injection openings are evenly distributed on one side of the liquid crystal box.

[0013] For example, in the liquid crystal panel provided by at least one embodiment of the present invention, the liquid crystal injection opening is configured to pass the liquid crystal with its maximum flow cross section.

[0014] For example, according to the liquid crystal panel provided by at least one embodiment of the present invention, no blocking member is provided on the path of injecting liquid crystal from the liquid crystal injection opening into the liquid crystal box.

[0015] For example, in the liquid crystal panel provided by at least one embodiment of the present invention, the material of the main body of the sealing frame structure is sealing glue.

[0016] At least one embodiment of the present utility model provides a display device, which includes the above-mentioned liquid crystal panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.

[0018] Figure 1 It is a top view schematic diagram of a liquid crystal panel frame sealant, an opening in the frame sealant, and a blocking member;

[0019] Figure 2 is a schematic cross-sectional view of a liquid crystal panel according to an embodiment of the utility model;

[0020] Figure 3 is a schematic top view of a main body and an opening penetrating the main body of a sealing frame structure of a liquid crystal panel according to an embodiment of the utility model;

[0021] Figure 4 is a schematic cross-sectional view of a liquid crystal panel at a sealing frame structure according to an embodiment of the utility model;

[0022] Figure 5 is a schematic top view of a sealing frame structure of a liquid crystal panel according to an embodiment of the utility model;

[0023] Figure 6 is a schematic cross-sectional view of a liquid crystal panel at a sealing frame structure according to an embodiment of the utility model;

[0024] Figure 7 is a schematic top view of a liquid crystal panel according to an embodiment of the utility model; and

[0025] Figures 8 to 10 It is a schematic diagram of the manufacturing process of the liquid crystal panel according to the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The words "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0028] Figure 1 It is a top view schematic diagram of the frame sealant of the liquid crystal panel, the opening in the frame sealant, and the blocking member. Figure 1 This is the structure of the LCD panel during the liquid crystal filling stage.

[0029] like Figure 1 As shown, the inventor of the utility model found that the sealing glue of the liquid crystal panel with a size of 1 inch to 17 inches is provided with a barrier 12, which is offset from the inner edge of the sealing glue 11, that is, it is arranged at the liquid crystal injection opening 13 of the sealing glue 11, so as to slow down the liquid crystal filling speed of filling the liquid crystal into the liquid crystal box during the liquid crystal filling stage in the process of manufacturing the liquid crystal panel. However, this will hinder the manufacture of liquid crystal panels with narrow bezels, because it is difficult to control the size of the barrier 12 using the dispensing method, and the length L0 of the liquid crystal injection opening 13 is 1.0 mm to 3.0 mm. The length L0 is relatively large, and bubbles will be generated during the liquid crystal filling process and there is a risk of overflow of the sealing glue after the liquid crystal filling.

[0030] The embodiments of the utility model provide a liquid crystal panel and a display device. The length of at least one liquid crystal injection opening in the sealing frame structure of the liquid crystal panel on the liquid crystal flow cross section is less than or equal to 0.8 mm.

[0031] Figure 2 is a schematic cross-sectional view of a liquid crystal panel according to an embodiment of the utility model, Figure 3 is a schematic top view of a main body and an opening penetrating the main body of a sealing frame structure of a liquid crystal panel according to an embodiment of the utility model, Figure 4 It is a schematic cross-sectional view of a liquid crystal panel at a sealing frame structure according to an embodiment of the utility model. Figure 3 This is the structure of the LCD panel during the liquid crystal filling stage.

[0032] like Figures 2 to 4 As shown, for example, the liquid crystal panel 20 includes a first substrate 21, a second substrate 22 arranged opposite to each other, and a sealing frame structure 23 arranged between the first substrate 21 and the second substrate 22. The sealing frame structure 23 includes a main body 231 and at least one liquid crystal injection opening 232. The sealing frame structure 23 is annular. The first substrate 21, the second substrate 22, and the sealing frame structure 23 form a liquid crystal box. The liquid crystal injection opening 232 runs through the main body 231 of the sealing frame structure 23. The liquid crystal injection opening 232 is configured to flow the liquid crystal injected into the liquid crystal box during the liquid crystal filling stage. The length L of the liquid crystal injection opening 232 on the liquid crystal flow cross section is less than or equal to 0.8 mm.

[0033] According to the embodiments of the utility model, since the length of the liquid crystal injection opening of the liquid crystal box of the liquid crystal panel on the liquid crystal flow cross section is less than or equal to 0.8 mm, the speed of filling liquid crystal can be controlled during the liquid crystal filling process of the liquid crystal panel, and the risk of liquid crystal filling bubbles and overflow of sealing glue after liquid crystal filling can be prevented.

[0034] The liquid crystal flow cross section of the liquid crystal perfusion opening 232 refers to the cross section of the liquid crystal perfusion opening 232 that allows the liquid crystal to flow during the liquid crystal filling stage. As long as the liquid crystal perfusion opening 232 is provided, it has the liquid crystal flow cross section, and is not limited to being called the liquid crystal flow cross section during the liquid crystal filling stage. The dimension of the liquid crystal perfusion opening 232 in a direction perpendicular to the liquid crystal flow cross section is the depth of the liquid crystal perfusion opening 232.

[0035] In some embodiments, Figure 3 As shown, the length L of the liquid crystal injection opening 232 on the liquid crystal flow cross section refers to the length of the liquid crystal injection opening 232 in the extension direction (eg, direction X) of the side of the liquid crystal panel 20 where the liquid crystal injection opening 232 is provided. Figure 3 The length L of the liquid crystal injection opening 232 shown in the liquid crystal flow cross section is the dimension of the liquid crystal injection opening 232 in the direction X.

[0036] For example, the length of the liquid crystal injection opening 232 refers to its length L in the extension direction of the side of the liquid crystal panel 20 where the liquid crystal injection opening 232 is provided in the main surface parallel to the first substrate 21. Figure 3 The plane where the top view is shown is the plane where the directions X and Y are located.

[0037] Figure 4 The length L and width W of the liquid crystal injection opening 232 are shown. Figure 4 The liquid crystal injection opening 232 is described as a rectangle. Of course, the shape of the liquid crystal injection opening 232 is not limited to Figure 4 shown.

[0038] In some embodiments, Figure 3 As shown, in order to facilitate the injection of liquid crystal, the length L of the liquid crystal injection opening 232 in the liquid crystal flow cross section is greater than or equal to 0.3 mm.

[0039] According to the embodiment of the utility model, since the length of the liquid crystal injection opening of the liquid crystal box of the liquid crystal panel on the liquid crystal flow cross section is greater than or equal to 0.3 mm, the liquid crystal filling speed can be prevented from being too slow during the liquid crystal filling process of the liquid crystal panel.

[0040] In some embodiments, in order to take into account the liquid crystal injection speed, avoid the generation of bubbles, and reduce the risk of sealing glue overflow, the size of the liquid crystal injection opening 232 can range from 0.3 mm to 0.8 mm.

[0041] In some embodiments, Figure 3 As shown, the main body 231 of the sealing frame structure 23 protrudes out of the liquid crystal box at the liquid crystal injection opening 232, so that the size of the liquid crystal flow channel at the liquid crystal injection opening 232 is larger than the size of the main body 231 in a direction perpendicular to its extension.

[0042] For example, Figure 3 As shown, the dimension T of the liquid crystal filling opening 232 along the direction Y is greater than the length t of the main body 231 of the sealing frame structure along the direction Y.

[0043] According to the embodiment of the utility model, since the liquid crystal injection opening 232 protrudes outward from the liquid crystal box, the size of the liquid crystal circulation channel in the direction Y is larger than the size of the main body in the direction Y at the liquid crystal injection opening 232, which ensures that the liquid crystal is smoothly injected into the liquid crystal box during the liquid crystal filling stage, reduces leakage, and facilitates liquid crystal injection, thereby improving production efficiency and yield rate.

[0044] Figure 5 is a top view schematic diagram of a sealing frame structure of a liquid crystal panel according to an embodiment of the utility model, Figure 6It is a schematic cross-sectional view of a liquid crystal panel at a sealing frame structure according to an embodiment of the utility model.

[0045] In some embodiments, Figure 5 As shown, the sealing frame structure 23 further includes a sealing member 233 , and the sealing member 233 is configured to seal the liquid crystal injection opening 232 , so that the liquid crystal box is a sealed box. Figure 5 The sealed cavity 66 is shown. Liquid crystal (not shown) is arranged in the sealed cavity 66. Figure 5 and Figure 6 As shown, the sealed cavity 66 is surrounded by the first substrate 21, the second substrate 22 and the sealing frame structure 23 located therebetween. The cross section of the liquid crystal panel at the sealed cavity can be referred to Figure 2 .

[0046] Figure 5 and Figure 6 The structure of the liquid crystal panel after the liquid crystal injection opening 232 is blocked by the sealing member 233 .

[0047] In some embodiments, Figure 5 The orthographic projection of the sealing frame structure on the main surface is shown as a rectangle, but the present invention is not limited thereto. The orthographic projection of the sealing frame structure on the main surface may also be other shapes, such as a circle.

[0048] In some embodiments, the material of the sealing member 233 is UV curing glue.

[0049] In some embodiments, the seal 233 can be formed by sealing the liquid crystal injection opening 232 after the liquid crystal is filled into the liquid crystal box during the process of manufacturing the liquid crystal panel. Due to the size of the liquid crystal injection opening of the embodiment of the utility model, the sealant such as the sealing glue can be prevented from overflowing.

[0050] In some embodiments, the material of the sealing member 233 may also be other heat-curing adhesives, which is not limited in the present invention.

[0051] In some embodiments, the thickness of the liquid crystal cell is 3 micrometers to 60 micrometers. For example, the thickness of the liquid crystal cell refers to the height of the liquid crystal cell in a direction perpendicular to the main surface of the first substrate. Figure 2 The thickness TK of the liquid crystal cell is shown.

[0052] Figure 7 It is a schematic top view of a liquid crystal panel according to an embodiment of the utility model.

[0053] In some embodiments, the size of the liquid crystal cell is 1 inch to 17 inches. Figure 7 As shown, the size of the liquid crystal cell refers to the diagonal length S of the display area of ​​the liquid crystal panel that displays an image.

[0054] In some embodiments, the size of the liquid crystal cell is 1 inch to 6 inches, and the number of the liquid crystal injection opening 232 is one (this situation is not shown in the figure).

[0055] In some embodiments, the size of the liquid crystal cell is 6 inches to 17 inches, and the number of the liquid crystal injection openings 232 is plural.

[0056] In some embodiments, Figure 3-Figure 6 As shown, the number of the liquid crystal injection openings is 3. In this embodiment, the number of the liquid crystal injection openings is not limited, and any number of liquid crystal injection openings can be manufactured according to actual needs.

[0057] In some embodiments, Figure 3-Figure 6 As shown, a plurality of liquid crystal injection openings 232 are evenly distributed on one side of the liquid crystal cell.

[0058] According to the embodiment of the utility model, multiple liquid crystal injection openings are evenly arranged on one side of the liquid crystal box, which can ensure that the liquid crystal is evenly filled into the liquid crystal box during the liquid crystal filling process, thereby reducing the process time and improving the product yield.

[0059] In some embodiments, Figure 3 As shown, the liquid crystal injection opening 232 is configured to pass the liquid crystal with its maximum flow cross section. That is, during the liquid crystal filling process, the cross-sectional area of ​​the liquid crystal passing through the injection opening is the maximum flow area of ​​the injection opening, and the liquid crystal injection opening 232 is not blocked.

[0060] In some embodiments, Figure 3 As shown, no blocking member is provided on the path of injecting liquid crystal from the liquid crystal injection opening 232 into the liquid crystal cell.

[0061] According to an embodiment of the utility model, since the liquid crystal box is not provided with a barrier for slowing down the liquid crystal filling speed during the liquid crystal filling stage, the liquid crystal panel including the liquid crystal box can have a narrow frame, for example, the width of the narrow frame on the main surface can be as narrow as 1.5 mm.

[0062] In some embodiments, the material of the main body of the sealing frame structure is sealing glue, for example, the sealing glue can be UV curing glue or other heat curing glue.

[0063] According to the embodiment of the utility model, since no blocking member for slowing down the liquid crystal filling speed is provided in the liquid crystal box of the liquid crystal panel, the frame sealing glue can be produced by either screen printing or dispensing, making the production method more flexible.

[0064] Figures 8 to 10 A schematic diagram of the manufacturing process of the liquid crystal panel according to the utility model is shown.

[0065] The manufacturing process of the liquid crystal panel of the present invention may include the following steps.

[0066] Step 1: If Figure 8 As shown, a first substrate 21 is manufactured, and the first substrate may be a glass substrate.

[0067] Step 2: If Fig. 9 As shown, a sealant is applied on the first substrate 21 by screen printing or dispensing to form a sealant as shown in FIG. Figure 3 The sealing frame structure shown includes a main body 231 and a liquid crystal injection opening 232 .

[0068] Step 3: Use the second substrate 22 to assemble the cell, perform heat pressing, and cut to form a liquid crystal cell. The second substrate may be a glass substrate.

[0069] Step 3: Filling the liquid crystal through the liquid crystal filling opening 232 .

[0070] For example, the vacuum pressure of the vacuum pump for liquid crystal filling can be 1 Pa to 5 Pa, the balancing time for liquid crystal filling can be 30 to 200 minutes, the liquid crystal filling time can be 60 minutes to 200 minutes, and the purge time can be 60 minutes to 200 minutes.

[0071] Step 4: Use sealing glue to seal and cure the sealing glue to form Figure 5 The sealing member 233 of the sealing frame structure shown in the figure. The sealing glue can be UV curing glue or other heat curing glue. The material of the sealing member 233 can be the same as the material of the main body of the sealing frame structure, or it can be different.

[0072] Step 5: Clean the LCD panel.

[0073] For example, an electrode made of indium tin oxide and an alignment layer made of polyimide may be disposed on the first substrate 21 , and an electrode made of indium tin oxide and an alignment layer made of polyimide may be disposed on the second substrate 22 .

[0074] The utility model also provides a display device, which includes the liquid crystal panel of any one of the above embodiments.

[0075] For example, the display device may be any product or component having a display function, such as a television including a liquid crystal panel, a digital camera, a mobile phone, a watch, a tablet computer, a notebook computer, a navigator, or the like.

[0076] For example, the first substrate of the liquid crystal panel may be an array substrate, the second substrate of the liquid crystal panel may be a color filter substrate, or one of the first substrate or the second substrate of the liquid crystal panel may be both an array substrate and a color filter substrate.

[0077] The plan view of the present invention shows direction X and direction Y, and the cross-sectional view shows direction Z. Direction X and direction Y intersect, for example, direction X and direction Y are perpendicular. Direction Z is perpendicular to direction X, and perpendicular to direction Y. Direction Z is the arrangement direction of the first substrate 21 and the second substrate 22. That is, the first substrate 21 and the second substrate 22 are arranged along direction Z. Direction X and direction Y are two intersecting directions in a plane perpendicular to direction Z.

[0078] There are a few points to note:

[0079] (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the conventional designs.

[0080] (2) In the absence of conflict, features in the same embodiment or in different embodiments of the present invention may be combined with each other.

[0081] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A liquid crystal panel, characterized in that: The invention comprises a first substrate and a second substrate which are arranged opposite to each other, and a sealing frame structure which is arranged between the first substrate and the second substrate, wherein the sealing frame structure comprises a main body and at least one liquid crystal injection opening, the sealing frame structure is annular, and the first substrate, the second substrate, and the sealing frame structure form a liquid crystal box, the liquid crystal injection opening penetrates the main body of the sealing frame structure, the liquid crystal injection opening is configured to flow the liquid crystal injected into the liquid crystal box during the liquid crystal filling stage, and the length of the liquid crystal injection opening on the liquid crystal flow cross section is less than or equal to 0.8 mm.

2. The liquid crystal panel according to claim 1, characterized in that: The length of the liquid crystal injection opening in the liquid crystal flow cross section is greater than or equal to 0.3 mm.

3. The liquid crystal panel according to claim 1, characterized in that: The main body of the sealing frame structure protrudes out of the liquid crystal box at the liquid crystal injection opening so that the size of the liquid crystal flow channel at the liquid crystal injection opening is larger than the size of the main body in a direction perpendicular to the extension direction thereof.

4. The liquid crystal panel according to claim 1, characterized in that: The sealing frame structure further includes a sealing member, and the sealing member is configured to seal the liquid crystal injection opening so that the liquid crystal box is a sealed box.

5. The liquid crystal panel according to claim 4, characterized in that: The material of the sealing member is UV curing glue.

6. The liquid crystal panel according to claim 1, characterized in that: The size of the liquid crystal cell is 1 inch to 17 inches.

7. The liquid crystal panel according to claim 1, characterized in that: The thickness of the liquid crystal cell is 3 micrometers to 60 micrometers.

8. The liquid crystal panel according to claim 1, characterized in that: The size of the liquid crystal box is 1 inch to 6 inches, and the number of the liquid crystal injection opening is one.

9. The liquid crystal panel according to claim 1, characterized in that: The size of the liquid crystal box is 6 inches to 17 inches, and the number of the liquid crystal injection openings is multiple.

10. The liquid crystal panel according to claim 9, characterized in that: A plurality of liquid crystal injection openings are evenly distributed on one side of the liquid crystal box.

11. The liquid crystal panel according to any one of claims 1 to 9, characterized in that: The liquid crystal filling opening is configured to pass the liquid crystal at its maximum flow cross section.

12. The liquid crystal panel according to any one of claims 1 to 9, characterized in that: No blocking member is provided on a path for pouring liquid crystal from the liquid crystal pouring opening into the liquid crystal cell.

13. The liquid crystal panel according to any one of claims 1 to 9, characterized in that: The material of the main body of the sealing frame structure is frame sealing glue.

14. A display device, characterized in that: A liquid crystal panel comprising any one of claims 1-13.

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