CN106019728A - Display substrate, display panel and preparation method thereof and display device - Google Patents

Abstract

The invention provides a display substrate, a display panel and a preparation method thereof and a display device, and belongs to the technical field of display. The problem that a frame sealing adhesive is stripped from a first substrate and/or a second substrate due to the fact that photocuring of an existing display device is insufficient can be solved. The display substrate comprises a first substratum and a black matrix frame arranged on the first substratum, the first substratum comprises a display area and a periphery area located around the display area, the black matrix frame is located in the periphery area, the periphery area comprises a first frame sealing area, and the part, located in the first frame sealing area, of the black matrix frame is provided with multiple black matrix slits.

Description

Display substrate, display panel and manufacturing method thereof, and display device

technical field

The invention belongs to the field of display technology, and in particular relates to a display substrate, a display panel, a preparation method thereof, and a display device.

Background technique

Nowadays, compared with display devices with wider bezels, most users prefer narrow bezel display devices because narrow bezel display devices can bring a wider viewing field of view and a larger display area.

A narrow bezel display device generally includes a first substrate and a second substrate, the first substrate and the second substrate are arranged in a box, and a sealant is provided between the first substrate and the second substrate, and the sealant is used to seal the first substrate. It is fixed with the second substrate, wherein the second substrate includes a metal layer, and a metal slit is arranged at a position corresponding to the metal layer and the sealant. In the manufacturing process of the narrow bezel display device, the sealant material is usually coated on the set position on the first substrate (the position where the sealant is formed), and then the second substrate and the first substrate are arranged in a box. Light is applied to the side of the second substrate away from the first substrate, so that the light is irradiated onto the sealant material through the metal slit, that is, the sealant material is photocured, thereby fixing the first substrate and the second substrate.

However, there are at least the following problems in the preparation process: since the light can only be irradiated on the sealing material through the metal slit, in other words, only the sealing material corresponding to the metal slit has undergone photocuring treatment, therefore, the sealing The light-receiving area of the sealant material is generally small, and the manufactured display device is likely to be peeled off from the first substrate and/or the second substrate due to insufficient light curing.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a display substrate capable of increasing the light-receiving area of the sealant material, a display panel, a manufacturing method thereof, and a display device.

The technical solution adopted to solve the technical problem of the present invention is a display substrate and a black matrix frame arranged on the first substrate, the display substrate includes a first substrate, and the first substrate includes a display area and a A peripheral area located around the display area, the black matrix frame is located in the peripheral area, the peripheral area includes a first sealing frame area, and the black matrix frame located in the first sealing frame area is provided with a plurality of Black matrix slits.

Wherein, the plurality of black matrix slits are arranged sequentially in rows or columns.

Wherein, the width of the black matrix slit is larger than 60% of the width of the first frame sealing area.

As another technical solution, the present invention also provides a display panel, including: the display substrate described in any one of the above and an opposite substrate disposed opposite to the display substrate, the opposite substrate and the display substrate pass through The sealant is fixed; the opposite substrate includes a second substrate and a metal layer disposed on a side of the second substrate close to the display substrate, and the metal layer includes a metal layer corresponding to the first frame sealing area. The second sealing frame area, the second sealing frame area is provided with a plurality of metal slits.

Wherein, the projection of each metal slit in the vertical direction is spaced apart from the projection of the black matrix slit in the vertical direction.

Wherein, the width of the metal slit is smaller than the distance between two corresponding adjacent black matrix slits.

As another technical solution, the present invention also provides a method for preparing a display panel, including:

Prepare a display substrate, the display substrate includes a first substrate and a black matrix frame arranged on the first substrate, the first substrate includes a display area and a peripheral area around the display area, the The black matrix frame is located in the peripheral area, the peripheral area includes a first sealing frame area, and the black matrix frame located in the first sealing frame area is provided with a plurality of black matrix slits;

Prepare a counter substrate, the counter substrate includes a second substrate and a metal layer disposed on a side of the second substrate close to the display substrate, the metal layer includes a metal layer corresponding to the first frame sealing area The second frame sealing area, the second frame sealing area is provided with a plurality of metal slits;

Coating a sealant material in the first frame sealing area and/or the second frame sealing area;

arranging the opposite substrate and the display substrate in a box;

applying light to the side of the display substrate away from the opposite substrate, so that the light is irradiated to the sealant material through the black matrix slit;

Light is applied to the side of the opposite substrate away from the display substrate, so that the light is irradiated to the sealant material through the metal slit.

Wherein, the plurality of black matrix slits are arranged sequentially in rows or columns.

Wherein, the width of the black matrix slit is larger than 60% of the width of the first frame sealing area.

As another technical solution, the present invention also provides a display device, including the display panel described in any one of the above.

In the display substrate, display panel and its preparation method, and display device of the present invention, the display substrate includes a first substrate and a black matrix frame arranged on the first substrate, and the first substrate includes a display area and a frame located around the display area. The peripheral area, the black matrix is located in the peripheral area, the peripheral area includes the first sealing frame area, the black matrix frame located in the first sealing frame area is provided with a plurality of black matrix slits, by adding black matrix slits on the display substrate side , when curing the sealant material, it can increase the area of the photoresist material irradiated by light, thereby increasing the photocuring rate of the sealant, reducing the incidence of seal leakage of the display panel, and effectively improving the relationship between the sealant and the first The first substrate and/or the second substrate are peeled off and the test results of high temperature, high pressure and high humidity test (PCT).

Description of drawings

FIG. 1 is a schematic structural view of a display substrate according to Embodiment 1 of the present invention;

FIG. 2 is a schematic composition diagram of a display panel according to Embodiment 2 of the present invention;

FIG. 3 is a schematic structural view of the opposing substrate in FIG. 2;

4 is a schematic flow chart of a method for preparing a display panel according to Embodiment 3 of the present invention;

Wherein, reference signs are: 1. display substrate; 10. first substrate; 11. display area; 12. peripheral area; 121. black matrix frame; 13. first sealing frame area; 131. black matrix slit; 14. Black matrix area; 2. Counter substrate; 21. Second substrate; 22. Metal layer; 23. Second frame sealing area; 231. Metal slit; 24. Reflecting area; 3. Sealing glue.

detailed description

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1:

Please refer to FIG. 1. This embodiment provides a display substrate 1, including a first substrate 10 and a black matrix frame 121 arranged on the first substrate 10. The first substrate 10 includes a display area 11 and a display area 11. In the surrounding peripheral area 12 , the black matrix frame 121 is located in the peripheral area 12 , and the peripheral area 12 includes a first encapsulation area 13 , and the black matrix frame 121 in the first encapsulation area 13 is provided with a plurality of black matrix slits 131 .

FIG. 1 is a partial view of a display substrate 1. The display substrate 1 includes a first substrate 10. A display area 11 and a peripheral area 12 located around the display area 11 are arranged on the first substrate 10. It can be understood that the display area 11 is located in the middle of the first substrate 10 , and a peripheral area 12 is provided around the display area 11 .

As can be seen from FIG. 1, the peripheral area 12 includes a first frame area 13 and a black matrix area 14 away from the display area 11, and the area outside the first frame area 13 close to the display area 11 in the peripheral area 12 is black. Matrix area 14, it can be understood that part of the black matrix frame 121 is located in the black matrix area 14, and part of the black matrix frame 121 is located in the first sealing frame area 13, and the black matrix area 14 is used for shading, so as to prevent light from passing through the display panel. shoot out. Wherein, the black matrix frame 121 located in the black matrix area 14 and the black matrix frame 121 located in the first frame area 13 are integrally formed, in other words, the black matrix frame 121 located in the black matrix area 14 and the frame area 121 located in the first frame area The black matrix frames 121 in 13 are arranged continuously; a plurality of black matrix slits 131 are arranged in the first frame area 13, wherein the black matrix slits 131 are used to transmit light.

The reason for this arrangement is to add black matrix slits 131 on the side of the display substrate 1 in order to increase the area where light is irradiated on the photoresist material when curing the frame sealant material, thereby improving the photocuring of the frame sealant material. rate, reduce the incidence of display panel seal leakage, effectively improve the peeling of the sealant and the display substrate and the detection results of the high temperature, high pressure and high humidity test (PCT).

Wherein, a plurality of black matrix slits 131 are sequentially arranged in rows or columns.

Preferably, the direction of the plurality of black matrix slits 131 in FIG. 1 is arranged in rows, that is, arranged in the horizontal direction. Of course, the arrangement of the plurality of black matrix slits 131 is not limited to this, and can also be arranged in columns. Arranged in a vertical direction, that is, arranged in a vertical direction, which will not be repeated here.

The reason why the above-mentioned regular arrangement is used to arrange multiple black matrix slits 131 is that the sequential arrangement can make the light-cured area more uniform, so that the encapsulation force of the sealing glue at all places is the same, and the sealing effect is improved.

Wherein, the width of the black matrix slit 131 is larger than 60% of the width of the first frame-encapsulating area 13 .

Please refer to FIG. 1. It should be explained that the width of the black matrix slits 131 refers to the length of each black matrix slit 131 in the horizontal direction, and the width of the first packaging area 13 refers to the width in the horizontal direction, that is, as shown in FIG. The length of the shorter side of the dashed area in 1. The reason for such setting is that the larger the width of the black matrix slit 131 is, the larger the light-receiving area of the sealing material is, that is, the larger the light-cured area is, the better the encapsulation effect will be. Of course, the ratio between the width of the black matrix slit 131 and the width of the first frame-encapsulating area 13 is not limited to this, and other ratios can also be adopted according to actual conditions, which will not be repeated here.

The display substrate of this embodiment includes a first substrate 10 and a black matrix border 121 disposed on the first substrate 10, the first substrate 10 includes a display area 11 and a peripheral area 12 located around the display area 11, and the black matrix The frame 121 is located in the peripheral area 12, the peripheral area 12 includes the first frame sealing area 13, the black matrix frame 121 located in the first frame sealing area 13 is provided with a plurality of black matrix slits 131, by adding black on the side of the display substrate 1 The matrix slits 131 can increase the area where the light irradiates on the photoresist material when curing the sealant material, thereby increasing the photocuring rate of the sealant, reducing the incidence of seal leakage of the display panel, and effectively improving the sealing performance. The peeling of the sealant and the display substrate and the detection results of the high temperature, high pressure and high humidity test (PCT).

Example 2:

Please refer to FIG. 2 and FIG. 3. This embodiment provides a display panel, including: the display substrate 1 of Embodiment 1 and an opposite substrate 2 arranged opposite to the display substrate 1. The opposite substrate 2 and the display substrate 1 are sealed by sealing The frame glue 3 is fixed; the opposite substrate 2 includes a second substrate 21 and a metal layer 22 disposed on the side of the second substrate 21 close to the display substrate 1, and the metal layer 22 includes a second The frame area 23 and the second frame area 23 are provided with a plurality of metal slits 231 .

Please refer to FIG. 3 , the opposite substrate 2 includes a second substrate 21 and a metal layer 22, and the opposite substrate 2 is formed with a second frame region 23 corresponding to the first frame region 13 and a second frame region 23 corresponding to the display region 11 and the black matrix region. 14 corresponds to the reflective area 24, the metal layer 22 includes a plurality of metal slits 231, the plurality of metal slits 231 are arranged in columns or rows, a part of each metal slit 231 is located in the second packaging area 23, each metal The other part of the slit 231 is located in the reflective area 24 , and each metal slit 231 located in the second encapsulation area 23 can allow light to pass through, so that the light irradiates on the sealant material to form the sealant 3 . It can be understood that the sealant 3 is located in a region corresponding to the metal slit 231 in the second packaging area 23 and the black matrix slit 131 in the first packaging area 13 . Wherein, the metal layer 22 in the reflective area 24 and the metal layer 22 in the second frame area 23 are integrally formed, in other words, the metal layer 22 in the reflective area 24 and the metal layer 22 in the second frame area 23 are continuously arranged of.

The reflective area 24 corresponds to the display area 11 and the black matrix area 14. Of course, the metal layer 22 in the reflective area 24 corresponding to the display area 11 and the black matrix area 14 can be a slit metal layer or a plate-shaped metal layer. It can be set according to the actual situation, and will not be repeated here.

Wherein, the projection of each metal slit 231 in the vertical direction is spaced apart from the projection of the black matrix slit 131 in the vertical direction.

As can be seen from Fig. 2, the projections of the black matrix slit 131 and the black matrix pattern 132 are arranged at intervals in the vertical direction, and the metal slit 231 and the metal pattern (not marked) are arranged at intervals, and each metal slit 231 It corresponds to the black matrix frame 121 between two adjacent black matrix slits 131 .

The reason for this setting is that when the sealant material is applied between the display substrate 1 and the opposite substrate 2, the light is irradiated to the sealing frame from above the display substrate 1 and below the opposite substrate 2 in FIG. 2 respectively. On the glue material, for the light incident from the top of the display substrate 1, it is irradiated on the sealing glue material corresponding to the metal pattern through the black matrix slit 131, so that this part of the sealing glue material is photocured; The light incident from the bottom of the substrate 2 is irradiated through the metal slit 231 to the sealant material corresponding to the black matrix frame 121 between two adjacent black matrix slits 131, so that the part of the sealant The material is light cured. In this way, by applying light to both sides of the display panel, the light-cured area of the frame sealant material can be increased, thereby increasing the cure area of the frame sealant and improving the encapsulation rate of the display panel.

Wherein, the width of the metal slit 231 is smaller than the distance between two corresponding adjacent black matrix slits.

The reason for such setting is to enable the black matrix frame 121 located between two adjacent black matrix slits 131 to block the light incident from the metal slits 231 and prevent the light from exiting the display panel, that is, to avoid light leakage from the display panel.

The display panel of the present embodiment includes the display substrate of the first embodiment. For detailed description, reference may be made to the display substrate of the first embodiment, which will not be repeated here. The display panel of this embodiment includes: the display substrate 1 of Embodiment 1 and the opposite substrate 2 arranged opposite to the display substrate, the opposite substrate 2 and the display substrate 1 are fixed by a sealant, and by adding The black matrix slit 131 can increase the area of the photoresist material irradiated by light when curing the sealant material, thereby increasing the photocuring rate of the sealant, reducing the incidence of seal leakage of the display panel, and effectively improving The peeling of the sealant and the display substrate and the test results of the high temperature, high pressure and high humidity test (PCT).

Example 3:

Please refer to FIG. 4, this embodiment provides a method for manufacturing a display panel, including:

Step 101, prepare a display substrate, the display substrate includes a first substrate and a black matrix frame arranged on the first substrate, the first substrate includes a display area and a peripheral area around the display area, and the black matrix frame is located in the peripheral area , the peripheral area includes a first sealing frame area, and the black matrix frame located in the first sealing area is provided with a plurality of black matrix slits.

Wherein, a plurality of black matrix slits are arranged sequentially in rows or columns.

Wherein, the width of the black matrix slit is larger than 60% of the width of the first frame sealing area.

Step 102, preparing a counter substrate, the counter substrate includes a second substrate and a metal layer disposed on a side of the second substrate close to the display substrate, the metal layer includes a second frame area corresponding to the first frame area, A plurality of metal slits are arranged in the second sealing frame area.

Step 103, coating a sealant material in the first frame area and/or the second frame area.

That is to say, the sealant material can be coated in any one of the first frame area and the second frame area, and can also be coated in both the first frame area and the second frame area. The setting is performed according to the actual situation, and will not be repeated here.

Step 104, setting the opposite substrate and the display substrate in a box. At this time, the first framed area corresponds to the second framed area.

Step 105 , applying light to the side of the display substrate away from the counter substrate, so that the light is irradiated to the sealant material through the black matrix slit.

Step 106 , applying light to the side of the opposing substrate away from the display substrate, so that the light is irradiated to the sealant material through the metal slit.

It should be noted that step 105 and step 106 can be performed in two steps, or can be performed at the same time, that is, light from both sides irradiates both sides of the display panel at the same time, so as to simplify the manufacturing process and save process time. By irradiating the sealant material from both sides of the display panel, the light-cured area of the sealant can be increased, thereby increasing the curing rate, improving the packaging capability of the display panel, and reducing the occurrence rate of seal leakage of the display panel.

The method for preparing the display panel of this embodiment is used to prepare the display panel of Embodiment 2. For detailed description, please refer to the display panel of Embodiment 2, which will not be repeated here.

The method for preparing the display panel of this embodiment is used to prepare the display substrate of Embodiment 1. By adding black matrix slits 131 on the side of the display substrate 1, when curing the sealant material, it is possible to increase the amount of light irradiated to the photolithography. The area on the adhesive material can be increased to increase the photocuring rate of the sealant, reduce the incidence of display panel seal leakage, effectively improve the peeling of the sealant from the display substrate and the detection results of the high temperature, high pressure and high humidity test (PCT).

Example 4:

This embodiment provides a display device, including the display panel of Embodiment 2. The display device can be any product or component with a display function such as a liquid crystal display panel, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, etc.

In the display device of this embodiment, by adding black matrix slits 131 on the side of the display substrate 1, when the sealant material is cured, the area where light is irradiated on the photoresist material can be increased, thereby improving the light intensity of the sealant material. Curing rate, reducing the incidence of display panel seal leakage, effectively improving the peeling of the sealant from the display substrate and the detection results of the high temperature, high pressure and high humidity test (PCT).

It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle 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 regarded as the protection scope of the present invention.

Claims (10)

1. a display base plate, it is characterised in that described display base plate includes the first substrate and sets Putting the black matrix frame on described first substrate, described first substrate includes viewing area and position Neighboring area around described viewing area, described black matrix frame is positioned at described neighboring area In, described neighboring area includes the first sealing frame area, is positioned at the black of described first sealing frame area Matrix frame is provided with multiple black matrix slit.

Display base plate the most according to claim 1, it is characterised in that multiple described black squares Battle array slit by row or is arranged in order by row.

Display base plate the most according to claim 1, it is characterised in that described black matrix is narrow The width of seam is more than the 60% of the width of described first sealing frame area.

4. a display floater, it is characterised in that including: claims 1 to 3 any one Described display base plate and the counter substrate being oppositely arranged with described display base plate, described opposed base Plate and described display base plate are fixed by sealed plastic box；Described counter substrate include the second substrate and At the metal level that described second substrate is arranged near the side of described display base plate, described metal level Including second sealing frame area corresponding with described first sealing frame area, in described second sealing frame area It is provided with multiple metallic slit.

Display floater the most according to claim 4, it is characterised in that each described metal Slit sets in the projection interval of vertical direction with described black matrix slit in the projection of vertical direction Put.

Display floater the most according to claim 5, it is characterised in that described metallic slit Width less than the distance between corresponding adjacent two described black matrix slits.

7. the preparation method of a display floater, it is characterised in that including:

Preparing display base plate, described display base plate includes the first substrate and is arranged on described first lining Black matrix frame at the end, described first substrate includes viewing area and is positioned at described viewing area Neighboring area around, described black matrix frame is positioned at described neighboring area, described surrounding zone Territory includes the first sealing frame area, and the black matrix frame being positioned at described first sealing frame area is provided with Multiple black matrix slits；

Preparation counter substrate, described counter substrate includes the second substrate and at described second substrate The metal level arranged near the side of described display base plate, described metal level includes and described first The second sealing frame area that sealing frame area is corresponding, is provided with multiple metal in described second sealing frame area Slit；

Sealed plastic box material is coated in described first sealing frame area and/or described second Feng Kuang district；

Box is arranged by described counter substrate with described display base plate；

At described display base plate away from the side applying light of described counter substrate, make described light Described sealed plastic box material is exposed to by described black matrix slit；

In described counter substrate away from the side applying light of described display base plate, make described light Described sealed plastic box material is exposed to by described metallic slit.

The preparation method of display floater the most according to claim 7, it is characterised in that many Individual described black matrix slit by row or is arranged in order by row.

The preparation method of display floater the most according to claim 7, it is characterised in that institute State the 60% of the width of the black matrix slit width more than described first sealing frame area.

10. a display device, it is characterised in that include claim 4 to 6 any one Described display floater.