CN111308816A - Organic film, array substrate, display panel and display device - Google Patents

Abstract

The present application discloses an organic film, an array substrate, a display panel and a display device, wherein the organic film includes a first area and a second area surrounding the first area, and the second area is provided with a hollow pattern. In the above scheme, the hollow pattern is arranged in the second area, so that the part on the array substrate that is combined with the sealant forms a concave-convex surface, which improves the bonding area with the sealant and increases the adhesion, thus overcoming the need for the organic film. This leads to the problem of peeling off the sealant and the array substrate.

Description

Organic film, array substrate, display panel and display device

technical field

The present invention generally relates to the field of display technology, and specifically relates to an organic film, an array substrate, a display panel and a display device.

Background technique

Liquid crystal display technology is the current mainstream display technology. Among them, Thin Film Transistor Liquid Crystal Display (TFT-LCD) products have the characteristics of small size, low power consumption, no radiation, and high display resolution, and are widely used in many in end products.

At present, users have higher and higher requirements for product standby time, and the power consumption of display components in products occupies a relatively high proportion. Therefore, how to reduce the power consumption of display components is a long-term goal pursued by those skilled in the art. Among them, arranging an organic film in the array substrate is a feasible solution. However, while using the organic film to reduce power consumption, the adhesion between the array substrate and the sealant is insufficient, resulting in the problem of peeling of the sealant and the array substrate.

SUMMARY OF THE INVENTION

The present application desires to provide an organic film, an array substrate, a display panel and a display device to solve the problem that the sealant and the array substrate are peeled off due to the arrangement of the organic film in the prior art.

The present invention provides an organic film comprising a first region and a second region surrounding the first region, wherein the second region is provided with a hollow pattern.

As one of the possible implementations, the area of the hollow pattern accounts for 10% to 30% of the second area.

As one implementation manner, the hollow pattern divides the second area into a plurality of mosaic patterns.

As one of the possible implementations, the distance between adjacent mosaic patterns is 10um-16um.

As one of the possible implementations, the distance between adjacent mosaic patterns is 13um.

In a second aspect, the present invention provides an array substrate, comprising a display area, a non-display area surrounding the display area, and the above-mentioned organic film, the first area is at least located in the display area, and the second area is located at least in the display area. in the non-display area.

As one of the possible implementations, a first passivation layer is formed on the organic film;

the first passivation layer exposes the second region; or,

The first passivation layer covers the second region and forms a concave-convex pattern following the hollow pattern.

As one of the possible implementations, the organic film is located within the boundary range of the array substrate, and the boundary of the organic film is between 0.1 mm and 0.3 mm from the boundary of the array substrate.

In a third aspect, the present invention provides a display panel, comprising a color filter substrate and the above-mentioned array substrate disposed opposite to each other, and a frame sealing glue for assembling the color filter substrate and the array substrate, the frame sealing glue is located in the within the second area.

In a fourth aspect, the present invention provides a display device including the above-mentioned display panel.

In the above solution, the hollow pattern is arranged in the second area, so that the part on the array substrate that is combined with the sealant forms a concave-convex surface, which improves the bonding area with the sealant and increases the adhesion, so it overcomes the problem of setting the organic film. This leads to the problem of peeling off the sealant and the array substrate.

Description of drawings

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

1 is a schematic structural diagram of an organic film provided in an embodiment of the present invention;

2-10 are schematic diagrams of a formation process of an array substrate according to an embodiment of the present invention;

11 is a top view of a display panel according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a display panel boundary according to an embodiment of the present invention.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the invention are shown in the drawings.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

FIG. 1 shows an organic film according to an embodiment of the present invention, which includes a first area 1 and a second area 2 surrounding the first area 1 , and the second area 2 is provided with a hollow pattern 27 .

The organic film can be formed in the process of fabricating the array substrate, such as but not limited to,

A TFT device is formed on the base substrate, a first passivation layer is formed on the TFT device, an organic solution layer is formed on the first passivation layer, the organic solution layer is cured, and the cured second region 2 is etched The above-mentioned hollow pattern 27 is formed by etching.

In the above solution, by arranging the hollow pattern 27 in the second area 2, the part on the array substrate that is combined with the sealant forms a concave-convex surface, which improves the bonding area with the sealant and increases the adhesion, thus overcoming the problem of setting The organic film leads to the problem of peeling off the sealant and the array substrate.

As one of the possible implementations, the area of the hollow pattern accounts for 10% to 30% of the second area. For example, 10%, 15%, 20%, 25%, 30%, etc. With this ratio, on the one hand, the contact area between the sealant and the array substrate can be increased to ensure sufficient adhesion between them; sufficient adhesion.

As one of the possible implementations, the hollow pattern 27 divides the second area 2 into a plurality of mosaic patterns 4 . The specific size of each mosaic pattern 4 is not limited here, and adjacent mosaic patterns 4 may be the same or different.

As one of the possible implementations, the distance between adjacent mosaic patterns 4 is 10um-16um.

As one of the possible implementations, the distance between adjacent mosaic patterns 4 is 13um.

In the second aspect, as shown in FIGS. 2-10 , the present invention provides an array substrate, which includes a display area and a non-display area surrounding the display area, and also includes the above-mentioned organic film 23 , the first area is at least located in the display area, The second area is located in the non-display area.

As one of the possible implementations, a first passivation layer 24 is formed on the organic film;

The first passivation layer 24 exposes the second region, so that the sealant and the organic film are directly bonded together; or,

The first passivation layer 24 covers the second area, and follows the hollow pattern to form a concave-convex pattern, so that the sealant and the first passivation layer are bonded together. The concave-convex pattern formed following the hollow pattern here refers to the concave part in the hollow pattern, and the first passivation layer 24 is correspondingly concave. Specifically, the first passivation layer is thinner than the organic film. For example, the thickness of the organic film may be about 4um, and the thickness of the first passivation layer 24 may be about 0.4um. If 24 is thinner, it will not fill in the hollow pattern, so the first passivation layer 24 also forms a concave-convex pattern in the second area.

As one of the possible implementations, the organic film 23 is located within the boundary range of the array substrate, and the distance D between the boundary of the organic film and the boundary C of the array substrate is between 0.1 mm and 0.3 mm, see also FIG. 11 12, for example, it is 0.2 mm, that is, the organic film is smaller than the array substrate, which can prevent damage to the organic film when the array substrate is cut, resulting in cracks in the organic film.

Hereinafter, the method for preparing the above-mentioned array substrate will be described by taking one of the examples. The "patterning process" mentioned in the embodiments of the present invention includes processes such as depositing a film layer, coating photoresist, mask exposure, developing, etching, and stripping photoresist, and is a mature preparation process in the related art. The "photolithography process" mentioned in this embodiment includes film coating, mask exposure and development, and is a mature preparation process in the related art. The deposition can use known processes such as sputtering, evaporation, and chemical vapor deposition, the coating can use a known coating process, and the etching can use a known method, which is not specifically limited here. In the description of this embodiment, it should be understood that "thin film" refers to a layer of thin film produced by depositing or coating a certain material on a substrate. If the "thin film" does not require a patterning process or a photolithography process in the entire manufacturing process, the "thin film" may also be referred to as a "layer". If the "thin film" needs a patterning process or a photolithography process in the whole manufacturing process, it is called a "thin film" before the patterning process, and a "layer" after the patterning process. A "layer" after a patterning process or a photolithography process contains at least one "pattern".

S101: forming a gate electrode 29 and a common electrode 8 on the substrate 20, as shown in FIG. 2;

The substrate 20 can be a flexible substrate, such as a polyethylene terephthalate (Polyethyleneterephthalate; PET) film; it can also be a rigid substrate, such as a glass substrate.

A gate metal film is deposited on the substrate 20 , and the gate metal film is patterned to form a gate electrode 29 and a common electrode 8 .

S102: on the substrate 20 on which the aforementioned pattern is formed, deposit a first gate insulating film as the first gate insulating layer 21, as shown in FIG. 3;

Wherein, the first gate insulating film can be silicon oxide SiOx, silicon nitride SiNx, silicon oxynitride SiON, etc., and can be a single-layer, double-layer or multi-layer structure.

S103: forming an active layer 30 on the first gate insulating layer 21, as shown in FIG. 4;

S104: forming the source electrode 28 and the drain electrode 31 on the active layer 30, as shown in FIG. 5;

A metal layer is deposited on the active layer, and the metal layer is patterned to form the source electrode 28 and the drain electrode 31 .

S105: depositing a second passivation layer 22 on the source electrode 28 and the drain electrode 31, as shown in FIG. 6;

The material of the second passivation layer 22 can be silicon oxide SiOx, silicon nitride SiNx, silicon oxynitride SiON, etc., and can be a single-layer, double-layer or multi-layer structure.

S106: forming an organic film 23 on the second passivation layer 22, as shown in FIG. 7;

An organic solution is coated on the second passivation layer 22, and the organic solution is thermally cured to form a film layer structure, and a hollow pattern 27 is formed by etching at the position of the second region on the film layer structure.

S107: forming a first transparent electrode layer 26 on the second passivation layer 22, as shown in FIG. 8;

S108: forming a first passivation layer 24 on the first transparent electrode layer 26, as shown in FIG. 9;

S109 : forming a second transparent electrode layer 25 connected to the common electrode 8 on the first passivation layer 24 , as shown in FIG. 10 .

In the third aspect, as shown in FIG. 11 and FIG. 12 , the present invention provides a display panel, which includes a color filter substrate 9 and an array substrate 8 in the above-mentioned embodiment arranged oppositely, and a pair of the color filter substrate 9 and the array substrate 8 . The frame sealing glue 10 for the box, the frame sealing glue 10 is located within the range L of the second area.

Generally, as shown in FIG. 11 , in the display panel, the size of the array substrate 8 is the largest, followed by the organic film 23 , and the color filter substrate 9 is smaller than the organic film 23 . 7 Within the range of the array substrate, the other three boundaries are flush with the boundaries corresponding to the entire array of substrates, and the organic film covers the display area AA.

As shown in FIG. 12 , the edge area of the array substrate 8, that is, outside the display area boundary S, generally includes the clock wiring area GOACLK for row driving of the array substrate, and the thin film transistor wiring area GOATFT for row driving of the array substrate in sequence, that is, the common Electrode trace area Vcom.

In a fourth aspect, the present invention provides a display device including the above-mentioned display panel.

The display device is, for example, but not limited to, a smart phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and the like.

It should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical" "," "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover, without departing from the inventive concept, the above-mentioned technical features or their Other technical solutions formed by any combination of equivalent features. For example, a technical solution is formed by replacing the above-mentioned features with the technical features disclosed in this application (but not limited to) with similar functions.

Claims (10)

1. The organic film is characterized by comprising a first area and a second area surrounding the first area, wherein the second area is provided with a hollow pattern.

2. The organic film according to claim 1, wherein the area of the hollow pattern accounts for 10% to 30% of the second region.

3. The organic film of claim 1 or 2, wherein the hollowed-out pattern divides the second region into a plurality of mosaic patterns.

4. The organic film according to claim 3, wherein a distance between adjacent mosaic patterns is 10um to 16 um.

5. The organic film according to claim 4, wherein a distance between adjacent mosaic patterns is 13 um.

6. An array substrate comprising a display region and a non-display region surrounding the display region, wherein the array substrate further comprises the organic film of any one of 1 to 5, the first region is at least located in the display region, and the second region is located in the non-display region.

7. The array substrate of claim 6, wherein a first passivation layer is formed on the organic film;

the first passivation layer exposes the second region; or,

the first passivation layer covers the second area and is formed with a concave-convex pattern along with the hollow pattern.

8. The array substrate of claim 6 or 7, wherein the organic film is located within the boundary of the array substrate, and the boundary of the organic film is between 0.1mm and 0.3mm from the boundary of the array substrate.

9. A display panel, comprising a color film substrate and the array substrate of any one of claims 6 to 8, which are arranged oppositely, and a frame sealing adhesive for sealing the color film substrate and the array substrate, wherein the frame sealing adhesive is located in the second area.

10. A display device characterized by comprising the display panel according to claim 9.

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