CN111913325B

CN111913325B - Display panel, manufacturing method thereof and display device

Info

Publication number: CN111913325B
Application number: CN202010836881.6A
Authority: CN
Inventors: 付卓; 李伟
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2022-07-01
Anticipated expiration: 2040-08-19
Also published as: CN111913325A

Abstract

The application discloses a display panel, a manufacturing method thereof and a display device with the display panel. The display panel comprises a first substrate, a second substrate, a plurality of blocking walls and a frame glue. The second substrate is arranged corresponding to the first substrate, the second substrate is provided with a base material, and one side edge of the base material is bent towards the first substrate. The plurality of blocking walls are arranged on the first substrate and form an accommodating space, and the side edge of the bent substrate is arranged corresponding to the accommodating space. The frame glue is arranged in the accommodating space; the side edges of the bent base material are correspondingly inserted into the plurality of retaining walls, so that the second substrate is connected with the first substrate by using the frame glue. This application can reach the demand of narrow frame.

Description

Display panel, manufacturing method thereof and display device

Technical Field

The present application relates to a display panel meeting the requirement of a narrow frame, a method for manufacturing the same, and a display device having the display panel.

Background

With the development of technology, flat panel display devices have been widely used in various fields, such as liquid crystal display devices or electroluminescent display devices, and have superior characteristics of being light and thin, low power consumption and being non-radiative, so that they have gradually replaced conventional cathode ray tube display devices and have been applied to various electronic products, such as mobile phones, portable multimedia devices, notebook computers, liquid crystal televisions and liquid crystal screens.

Taking the lcd device as an example, the lcd panel mainly includes an Array (Array) substrate, a Color Filter (CF) substrate, and a liquid crystal layer sandwiched between the two substrates. In the manufacturing process of the liquid crystal display device in the prior art, the array substrate and the color filter substrate respectively include a flat transparent substrate, and for example, a sealant is coated around the array substrate, liquid crystal is injected into the sealant, and the array substrate and the color filter substrate are assembled and bonded, and then combined with the front frame and the backlight module.

However, in the conventional method, the position of the frame glue is still required to be shielded by a light shielding material (such as Black Matrix, BM), and the assembled array substrate and the color filter substrate are also required to be combined by a front frame, so the conventional method is not favorable for the requirement of narrow frame.

Disclosure of Invention

An object of the present invention is to provide a display panel, a method for manufacturing the same, and a display device having the same, which can meet the requirement of a narrow frame.

The application provides a display panel, which comprises a first substrate, a second substrate, a plurality of blocking walls and a frame glue. The second substrate is arranged corresponding to the first substrate, the second substrate is provided with a base material, and one side edge of the base material is bent towards the first substrate. The plurality of baffle walls are arranged on the first substrate and form an accommodating space, and the side edge of the bent base material is arranged corresponding to the accommodating space. The frame glue is arranged in the accommodating space; the side edges of the bent base material are correspondingly inserted into the plurality of retaining walls, so that the second substrate is connected with the first substrate by using the frame glue.

In one embodiment, four sides of the substrate are bent toward the first substrate.

In one embodiment, each of the barrier ribs is disposed around the outer periphery of the first substrate.

In one embodiment, the width of the side edge of the bent substrate is less than or equal to the distance between the adjacent blocking walls.

In one embodiment, the first substrate is an array substrate and the second substrate is a color filter substrate, or vice versa.

The present application further provides a method for manufacturing a display panel, including: arranging a plurality of baffle walls on a first substrate, wherein the plurality of baffle walls form an accommodating space; arranging a frame glue in the accommodating space; providing a second substrate, and bending one side of a base material of the second substrate; and the bent side edges are correspondingly inserted into the accommodating spaces of the plurality of baffle walls, so that the second substrate is connected with the first substrate by using the frame glue.

In one embodiment, the manufacturing method further comprises: and curing the frame glue.

The present application further provides a display device, which includes a display panel and a backlight module. The display panel comprises a first substrate, a second substrate, a plurality of blocking walls and a frame glue. The second substrate is arranged corresponding to the first substrate, the second substrate is provided with a base material, and one side edge of the base material bends towards the first substrate. The plurality of baffle walls are arranged on the first substrate and form an accommodating space, and the side edge of the bent base material is arranged corresponding to the accommodating space. The frame glue is arranged in the accommodating space; the side edges of the bent base material are correspondingly inserted into the plurality of retaining walls, so that the second substrate is connected with the first substrate by using the frame glue. The backlight module is arranged opposite to the display panel.

In summary, in the display panel, the manufacturing method thereof, and the display device having the display panel of the present application, the edge of the second substrate is made into a curved surface bent toward the first substrate, and the plurality of retaining walls are disposed at the outer periphery of the first substrate, and after the frame adhesive is coated in the accommodating space formed by the plurality of retaining walls, the first substrate and the second substrate are assembled, so that the side of the base material of the second substrate can be bent into the accommodating space of the plurality of retaining walls to contact the frame adhesive, and the frame adhesive is used to connect the second substrate and the first substrate. Therefore, compared with the prior art, the display panel and the display device do not need to use a light shielding material at the position of the frame glue, and the assembled first substrate and the assembled second substrate do not need to use a front frame for assembly, so that the requirement of a narrow frame can be met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic view of a display panel according to an embodiment of the present application.

Fig. 2 is a schematic top view of a display panel according to an embodiment of the present application.

Fig. 3 is a schematic view of a display panel according to another embodiment of the present application.

Fig. 4 is a schematic diagram of a display device according to an embodiment of the present application.

Detailed Description

Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, it is to be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Hereinafter, a display panel, a method of manufacturing the same, and a display device according to some embodiments of the present application will be described with reference to the accompanying drawings, in which like elements will be described with like reference numerals.

Fig. 1 is a schematic view of a display panel according to an embodiment of the present application, and fig. 2 is a schematic top view of the display panel according to the embodiment of the present application. The Display panel may be a Liquid Crystal Display (LCD) panel or an electroluminescent Display panel (e.g., an organic light emitting diode Display panel). As shown In fig. 1, the display panel 1 of the present embodiment is an example of a liquid crystal display panel, and may be a Fringe Field Switching (FFS) type liquid crystal display panel, or an IPS (In Plane Switching, IPS) type liquid crystal display panel, a Twisted Nematic (TN) type liquid crystal display panel, a Vertical Alignment (VA) type liquid crystal display panel, or other types of liquid crystal display panels, but is not limited thereto.

The display panel 1 includes a first substrate 11, a second substrate 12, a plurality of

barrier walls

13a, 13b and a sealant 14.

The first substrate 11 is disposed opposite to the second substrate 12. The second substrate 12 has a base 121, and a side 1211 of the base 121 is bent toward the first substrate 11. As shown in fig. 2, in one embodiment, four sides 1211 (not labeled 1211 in fig. 2) of the substrate 121 may be bent toward the first substrate 11. The first substrate 11 of the present embodiment is an array substrate, such as a Thin Film Transistor (TFT) substrate, the TFT substrate may include some components or layers, such as a TFT, a planarization layer, a passivation layer, an electrode layer, an alignment layer or a spacer (spacer), or other layers, and the second substrate 12 is a color filter substrate, which may include, for example, a color filter layer, an electrode layer or an insulating layer, or other layers. Here, the array substrate (thin film transistor substrate) and the color filter substrate are well known in the art and are not the focus of the present application, and those skilled in the art can obtain specific technical contents and configurations from the related documents and are not further clarified. In addition, a liquid crystal layer lc (liquid crystal) may be interposed between the first substrate 11 (array substrate) and the second substrate 12 (color filter substrate).

In other embodiments, the first substrate 11 may also be a color filter substrate, and the second substrate 12 may be an array substrate, without limitation. In addition, when the display panel 1 is an electroluminescent display panel, such as an Organic Light-Emitting Diode (OLED) display panel, the first substrate 11 may be an array substrate, which may further include Light-Emitting elements of the leds, and the second substrate 12 may be a protection substrate.

The plurality of blocking

walls

13a and 13b are disposed on the first substrate 11 and form a receiving space S, and the side 1211 of the bent substrate 121 corresponds to the receiving space S. Herein, the plurality of blocking

walls

13a and 13b are disposed on the surface of the first substrate 11 facing the second substrate 12 to form the accommodating space S. The first substrate 11 may include a substrate 111, and the two

barrier walls

13a and 13b may be directly disposed on the substrate 111 or indirectly disposed on the substrate 111 (i.e., indirectly disposed with a film layer, such as an insulating layer or a conductive layer, interposed therebetween), which is not limited in this application. The material of the

walls

13a, 13b may be, for example, but not limited to, silicon nitride or silicon oxide. As shown in fig. 1, the blocking

walls

13a and 13b of the present embodiment are respectively upright, and as shown in fig. 2, the blocking wall 13b is disposed around the outer periphery of the first substrate 11 facing the second substrate 12, the blocking wall 13a is also disposed around the outer periphery of the first substrate 11 facing the second substrate 12, and the blocking wall 13b is located between the liquid crystal layer LC and the blocking wall 13 a.

The sealant 14 is disposed in the accommodating space S, and the side 1211 of the bent substrate 121 is correspondingly inserted into the blocking

walls

13a and 13b to contact the sealant 14, so that the sealant 14 connects the second substrate 12 and the first substrate 11. Herein, the sealant 14 may be filled in the accommodating space S between the two blocking

walls

13a and 13b, so that when the side 1211 of the bent substrate 121 is correspondingly inserted into the empty space S between the two blocking

walls

13a and 13b, the sealant 14 and the blocking

walls

13a and 13b may be used to seal the peripheries of the first substrate 11 and the second substrate 12. The width w of the side 1211 of the bent substrate 121 may be substantially smaller than or equal to the distance d between two

adjacent walls

13a and 13 b. Ideally, as shown in the present embodiment, the width w of the side 1211 is equal to the distance d between the two

adjacent walls

13a and 13b, so that the first substrate 11 and the second substrate 12 can be completely sealed. It should be noted that the width w of the side 1211 of the substrate 121 cannot be too small, for example, not smaller than 10% of the distance d between the two blocking

walls

13a and 13b, otherwise the stability of adhering the first substrate 11 and the second substrate 12 by the sealant 14 may not be good.

The sealant 14 can be a thermosetting adhesive, a photo-curing adhesive, or a combination thereof. In the embodiment, the sealant 14 is a photo-curing adhesive (for example, but not limited to, an Ultraviolet (UV) adhesive), and is disposed in the accommodating space S between the blocking

walls

13a and 13b in an air coating manner for example, and is photo-cured. The sealant 14, the blocking wall 13b, the first substrate 11 and the second substrate 12 can form a storage space (not shown) for a plurality of liquid crystal molecules of the liquid crystal layer LC. Here, for example, but not limited to, the liquid crystal molecules are filled into the region surrounded by the barrier wall 13b, the sealant 14, the first substrate 11 and the second substrate 12 by One Drop Filling (ODF).

In addition, the display panel 1 of the embodiment further includes a light shielding layer BM (black matrix), and the light shielding layer BM is disposed on the substrate 121 of the second substrate 12 facing the first substrate 11. In the fabrication process of the liquid crystal display panel, the array substrate and the color filter substrate respectively include a flat substrate made of, for example, glass, and during the assembly and fabrication process, the frame adhesive is coated on the periphery of the flat substrate, and after the two substrates are combined, the two substrates are combined with the front frame. In the assembling process, the light-shielding material is required to be disposed at the position corresponding to the frame glue on the color filter substrate. However, in the display panel 1 of the embodiment, since the side 1211 of the substrate 121 of the second substrate 12 is bent into the accommodating space S of the blocking

walls

13a and 13b, the position of the substrate 121 of the second substrate 12 corresponding to the sealant 14 does not need to be provided with a corresponding light-shielding material, and a front frame is not needed for assembly, thereby reducing the manufacturing process and cost.

The present application further provides a manufacturing method (or an assembling method) of the display panel 1, which may include: the first step is as follows: providing a first substrate 11 (e.g., an array substrate); the second step is as follows: arranging a plurality of retaining

walls

13a, 13b on the first substrate 11, wherein the plurality of retaining

walls

13a, 13b form an accommodating space S; the third step: arranging a frame glue 14 in the accommodating space S; the fourth step: providing a second substrate 12 (e.g., a color filter substrate), and bending a side 1211 of a base 121 of the second substrate 12; the fifth step: the bent side 1211 is inserted into the receiving space S of the plurality of blocking

walls

13a and 13b, so that the sealant 14 is used to connect the second substrate 12 and the first substrate 11. The fourth step can be performed earlier than the second and third steps. In addition, the fourth step of bending the side 1211 of the substrate 121 of the second substrate 12 may further include: the other three sides 1211 of the substrate 121 are bent, and the other three sides 1211 of the substrate 121 are inserted into the corresponding receiving spaces S of the blocking

walls

13a and 13 b. Wherein, the four sides 1211 of the substrate 121 of the second substrate 12 can be bent by heating.

In addition, before the fifth step, the manufacturing method (assembling method) of the display panel 1 may further include: a plurality of liquid crystal molecules are injected into the region surrounded by the inner side of the blocking wall 13b and the first substrate 11 (array substrate). In addition, the method of manufacturing the display panel 1 further includes: the sealant 14 is cured, so that the sealant 14 can adhere the first substrate 11 and the second substrate 12. In addition, the above description may be referred to for other technical contents of the manufacturing method of the display panel 1.

In the display panel 1 and the manufacturing method thereof according to the embodiment, the edge of the second substrate 11 (e.g., the color filter substrate) is made into a curved surface bending toward the first substrate 11, the two corresponding blocking

walls

13a and 13b are disposed on the outer periphery of the first substrate 11 (e.g., the thin film transistor substrate), and after the sealant 14 is coated inside the accommodating space S formed by the two blocking

walls

13a and 13b, the first substrate 11 and the second substrate 12 are assembled, so that the side 1211 of the base material 121 of the second substrate 12 can be bent into the accommodating space S of the multiple blocking

walls

13a and 13b to contact the sealant 14, so as to connect the second substrate 12 and the first substrate 11 by the sealant 14. Therefore, compared with the conventional method, the display panel 1 of the present application does not need to use a light shielding material at the corresponding position of the sealant 14, and the assembled first substrate 11 and second substrate 12 do not need to use a front frame for assembly, so that the display panel 1 can meet the requirement of a narrow frame.

Fig. 3 is a schematic view of a display panel according to another embodiment of the present application. As shown in fig. 3, the main difference from the display panel 1 of fig. 1 is that the width w of the side 1211 of the bent substrate 121 of the display panel 1a is smaller than the distance d between the

walls

13a and 13b (not smaller than 10% of the distance d). Therefore, a part of the substrate 121 is inserted into the sealant 14, such that the side 1211 can be partially submerged into the sealant 14, and a part of the sealant 14 material is disposed on two sides of the bent side 1211 of the substrate 121. In addition, other technical contents of the display panel 1a can refer to the same elements of the display panel 1, and are not described in detail.

Fig. 4 is a schematic view of a display device according to an embodiment of the present application.

The display device 2 includes a display panel 3 and a backlight module 4, wherein the display panel 3 and the backlight module 4 are disposed opposite to each other. The display panel 3 may include all the features of the display panel 1 or 1a, or the variations thereof, and the specific technical contents can be referred to above, which will not be described herein.

When the light E emitted from the backlight module 4 passes through the display panel 3, the color can be displayed through each pixel of the display panel 3 to form an image.

In summary, in the display panel, the manufacturing method thereof, and the display device having the display panel of the present application, the edge of the second substrate is made into a curved surface bending toward the first substrate, the plurality of retaining walls are disposed at the outer periphery of the first substrate, and after the sealant is coated in the accommodating space formed by the plurality of retaining walls, the first substrate and the second substrate are assembled, so that the side edge of the base material of the second substrate can be bent into the accommodating space of the plurality of retaining walls to contact the sealant, so as to connect the second substrate with the first substrate by the sealant. Therefore, compared with the prior art, the display panel and the display device do not need to use a light shielding material at the position of the frame glue, and the assembled first substrate and the assembled second substrate do not need to use a front frame for assembly, so that the requirement of a narrow frame can be met.

The foregoing is by way of example only, and not limiting. Any equivalent modifications or variations without departing from the spirit and scope of the present application should be included in the scope of the claims.

Claims

1. A display panel, comprising:

a first substrate;

the second substrate is arranged corresponding to the first substrate and provided with a base material, and one side edge of the base material is bent towards the first substrate;

the plurality of baffle walls are arranged on the first substrate and form an accommodating space, and the side edge of the bent base material is arranged corresponding to the accommodating space; and

the frame glue is arranged in the accommodating space;

the side edges of the bent base material are correspondingly inserted into the barrier walls to contact the frame glue, so that the frame glue is utilized to connect the second substrate with the first substrate.

2. The display panel of claim 1, wherein four of the sides of the substrate are bent toward the first substrate.

3. The display panel of claim 1, wherein each of the barrier ribs is disposed around an outer periphery of the first substrate.

4. The display panel of claim 1, wherein the width of the side edge of the substrate is less than or equal to the distance between the adjacent barrier walls.

5. The display panel of claim 1, wherein the first substrate is an array substrate and the second substrate is a color filter substrate, or vice versa.

6. A method of manufacturing a display panel, comprising:

arranging a plurality of baffle walls on a first substrate, wherein the baffle walls form an accommodating space;

arranging a frame glue in the accommodating space;

providing a second substrate, and bending one side of a base material of the second substrate; and

the bent side edges are correspondingly inserted into the accommodating spaces of the plurality of blocking walls to contact the frame glue, so that the frame glue is utilized to connect the second substrate with the first substrate.

7. The method of claim 6, wherein each of the retaining walls is disposed around an outer periphery of the first substrate.

8. The method of claim 6, wherein the width of the bent side edge is less than or equal to the distance between adjacent walls.

9. The method of manufacturing of claim 6, further comprising:

and curing the frame glue.

10. A display device, comprising:

a display panel, comprising:

a first substrate;

the frame glue is arranged in the accommodating space, wherein the side edge of the bent base material is correspondingly inserted into the plurality of retaining walls to contact the frame glue, so that the frame glue is utilized to connect the second substrate with the first substrate; and

and the backlight module is arranged opposite to the display panel.