CN103533795A - Substrate for display and manufacture method thereof, as well as display device - Google Patents
Substrate for display and manufacture method thereof, as well as display device Download PDFInfo
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- CN103533795A CN103533795A CN201310527018.2A CN201310527018A CN103533795A CN 103533795 A CN103533795 A CN 103533795A CN 201310527018 A CN201310527018 A CN 201310527018A CN 103533795 A CN103533795 A CN 103533795A
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- 239000000758 substrate Substances 0.000 title claims abstract description 277
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000004806 packaging method and process Methods 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims description 85
- 238000007789 sealing Methods 0.000 claims description 67
- 230000004888 barrier function Effects 0.000 claims description 60
- 239000012945 sealing adhesive Substances 0.000 claims description 52
- 230000000903 blocking effect Effects 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 239000000565 sealant Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 53
- 239000010410 layer Substances 0.000 description 40
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- 238000001125 extrusion Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
The invention discloses a substrate for display and a manufacture method thereof, as well as a display device, relates to the technical field of display, and aims to provide a substrate for display and the display device with narrower frames. The substrate for display comprises a substrate body which is used for display and comprises a display area and a frame area, wherein at least one obstacle is arranged on the frame area of the substrate body, and the obstacle is used for obstructing a frame packaging adhesive which is deformed during packaging of the substrate body.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display substrate, a manufacturing method of the display substrate and a display device.
Background
In the field of display technology, with the development of display technology and the increasing demand of people for display products, narrow-frame display panels and display devices are becoming more and more popular among users in recent years.
Generally, a narrow-bezel display panel includes a color film substrate and an array substrate disposed opposite to each other. The display device includes a display area (also referred to as an AA area) and a bezel area. The manufacturing method of the display panel mainly comprises the following steps: manufacturing color film substrates corresponding to a plurality of display panels on one mother board, and manufacturing array substrates corresponding to the color film substrates one to one on the other mother board; frame sealing glue is manufactured in the frame area of each color film substrate or array substrate; bonding the color film substrate and the array substrate through frame sealing glue by a box aligning process; finally, the mother board is cut to obtain a plurality of independent display panels (also called cells). A gap (also referred to as a cutting region C) is formed between adjacent display panels (i.e., between corresponding adjacent sealant) before the mother board is cut, and the cutting wheel cuts along the cutting line of the cutting region C.
The width of the display panel frame mainly depends on the sum of the widths of the frame sealing glue and the cutting area which are positioned in the display panel frame area. The width of the frame sealing glue is the maximum width of the frame sealing glue after the color film substrate and the array substrate are paired. For realizing a narrow-frame display panel, the width of the frame sealing adhesive is an important technical problem.
Referring to fig. 1, a schematic cross-sectional view of a display panel in the prior art includes an array substrate 100 and a color filter substrate 200; the array substrate 100 and the color film substrate 200 are respectively provided with a flat layer 300; the liquid crystal display panel further comprises a frame sealing adhesive 400 positioned between the array substrate 100 and the color film substrate 200; since the frame sealing adhesive 400 is in a gel state (also called wet glue) during the coating and box aligning processes, the frame sealing adhesive deforms due to the extrusion effect during the box aligning process, and generally, the frame sealing adhesive flows along the surface of the array substrate to the AA region and the cutting line direction to deform; as shown in fig. 1, the width of the frame sealing adhesive 400 after the color film substrate 200 and the array substrate 100 are sealed is L. The size of L is different due to different extrusion forces when the array substrate 100 and the color film substrate 200 are assembled. Since the extrusion pressure cannot be accurately controlled, the width and position of the frame sealing adhesive 400 cannot be accurately controlled.
In addition, after the color film substrate 200 and the array substrate 100 are aligned, the cutting wheel cannot be cut on the frame sealing adhesive 400 in the process of cutting the mother board, so as to avoid causing defects of the display panel. At present, since the accurate width L and the accurate position of the frame sealing adhesive 400 cannot be determined, in order to avoid the display panel defect caused by the cutting of the cutting blade on the frame sealing adhesive 400, the cutting region (corresponding to the region C in fig. 1) is generally set to be wider, so as to ensure that the cutting blade cannot cut on the frame sealing adhesive 400 to the maximum extent.
Precisely, the width of the frame of the narrow-frame display panel is the sum of the width L of the frame sealing glue and the width C of the cutting area C; in the display panel provided by the prior art, the width of the cutting area C is at least 0.2mm, the cutting precision of the cutting knife wheel is not more than 0.04mm, the width of the cutting area C is far greater than that of the cutting knife wheel, the width of the frame is wide, and the display panel and the display device which are narrower in frame are not beneficial to being realized.
Disclosure of Invention
The embodiment of the invention provides a display substrate, a manufacturing method thereof and a display device, which are used for realizing the display substrate with a narrower frame and the display device.
The substrate for display comprises a substrate for display, the substrate comprises a display area and a frame area, at least one obstacle is arranged in the frame area of the substrate, and the obstacle is used for blocking frame sealing glue which deforms when the substrate is packaged.
Preferably, the substrate is an array substrate or a color film substrate.
Preferably, the barriers are respectively arranged on two sides of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate.
Preferably, the blocking object is arranged around two sides of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate.
Preferably, at least one obstacle is arranged on one side, close to the display area, of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate; or,
and arranging at least two barriers with a certain gap on one side of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate, which is far away from the display area.
Preferably, the distance between the obstacle and the edge of the frame sealing glue for packaging the substrate to be formed on the substrate is 0 to 0.5 μm.
Preferably, the height of the barrier is 0.5-6 μm, and the width of the barrier is 10-50 μm.
Preferably, the cross-section of the obstacle has a shape of a circle, an ellipse, or a regular polygon.
Preferably, the distance between the edge of the substrate and the obstacle ranges from 0.05 mm to 0.1 mm.
Preferably, the barrier is arranged on the same layer with the color resin layer on the substrate or on the same layer with the spacer layer on the substrate.
An embodiment of the present invention provides a display device, including a first substrate and a second substrate which are arranged opposite to each other, wherein the first substrate or the second substrate is any one of the above-described display substrates.
Preferably, one of the first substrate and the second substrate is an array substrate, and the other is a color filter substrate.
The embodiment of the invention provides a manufacturing method of a substrate for display, which comprises the following steps:
and manufacturing at least one obstacle in the frame area of the substrate, wherein the obstacle is used for blocking the deformed frame sealing glue when the substrate is packaged.
Preferably, the manufacturing of at least one obstacle in the frame area of the substrate includes:
forming a pattern of a color resin layer in a display area of the substrate, and simultaneously forming a pattern of the barrier in a frame area of the substrate; or,
and forming a pattern of a spacer in a display area of the substrate, and forming a pattern of the barrier in a frame area of the substrate.
Preferably, the blocking object is manufactured in a range of 0 to 0.5 μm from both sides of an edge of the frame sealing glue for encapsulating the substrate to be formed on the substrate to the edge.
Preferably, barriers with a height range of 0.5 to 6 μm and a width range of 10 to 50 μm are formed on both sides of the edge of the frame sealing glue for encapsulating the substrate to be formed on the substrate.
In summary, embodiments of the present invention provide a substrate for display, a method for manufacturing the substrate for display, and a display device, in which at least one blocking object is disposed in a frame region of the substrate, the blocking object is used to block a frame sealing adhesive deformed during packaging of the substrate, and block the frame sealing adhesive after extrusion deformation from flowing to a cutting region or a substrate display region at an edge of the substrate, so as to accurately limit a distribution range of the frame sealing adhesive on the substrate, and reduce a glue width of the frame sealing adhesive in the packaged substrate, thereby reducing a width of a frame of the substrate for display, and reducing a frame of a display device including the substrate for display, and thus implementing a substrate for display and a display device with narrower frames.
Drawings
FIG. 1 is a schematic diagram of a display panel according to the prior art;
fig. 2 is a schematic top view of a display substrate according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 in the direction CC';
FIG. 4 is a partial schematic view of a substrate structure for display according to another embodiment of the present invention;
fig. 5 is a schematic top view of a display substrate according to another embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5 in the direction CC';
fig. 7 is a schematic structural diagram of a color film substrate according to an embodiment of the present invention;
fig. 8 is a second schematic structural diagram of a color filter substrate according to an embodiment of the invention;
fig. 9 is a third schematic structural diagram of a color film substrate according to an embodiment of the invention;
fig. 10 is a fourth schematic structural view of a color filter substrate according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an array substrate according to an embodiment of the invention;
fig. 12 is a partial schematic view of a display device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a display substrate, a manufacturing method thereof and a display device, which are used for realizing the display substrate with a narrower frame and the display device.
The technical solutions provided by the embodiments of the present invention will be specifically described below with reference to the accompanying drawings. It should be noted that the features such as the relative distance or thickness between the functional film layers shown in the drawings of the present invention do not represent the actual distance or thickness, and are only used for illustrating the present invention and are not used for limiting the present invention.
Referring to fig. 2 and 3 (fig. 3 is a cross-sectional view of fig. 2 in the direction CC'), the display substrate includes a display area (see the AA area shown in fig. 2 and 3) and a bezel area B; fig. 3 shows a frame area in fig. 2.
The frame area B of the substrate 1 is provided with at least one obstacle 11, and the obstacle 11 is used for blocking frame sealing glue deformed when the substrate 1 for display is packaged.
Referring to fig. 6, generally, the frame sealing adhesive 13 is disposed on the substrate 1, the frame sealing adhesive 13 surrounds the AA region, and the blocking object 11 around the frame sealing adhesive 13 is used for blocking the frame sealing adhesive 13 deformed when the substrate 1 is packaged.
In the substrate for display shown in fig. 2 and 3 of the present invention, at least one obstacle 11 is disposed on the substrate 1, and the obstacle 11 is used for blocking the frame sealing glue 13 deformed when the substrate 1 is packaged. Generally, the display substrate and another substrate disposed opposite to each other are subjected to a box aligning process to form a complete display device, in the box aligning process, the frame sealing adhesive 13 is a gel (also called wet adhesive), the gel frame sealing adhesive 13 is easily deformed due to being heated in the extruding or curing process when the two substrates are aligned, and the deformed frame sealing adhesive flows to the edge of the substrate 1 and the display area. Referring to fig. 3 and 4, the obstacle 11 may be disposed on both sides or one side of the frame sealing adhesive; the blocking object 11 blocks the deformed frame sealing glue, so that the deformed frame sealing glue is prevented from flowing to the edge (namely, the cutting area C) or the display area AA of the display substrate, and the glue width of the frame sealing glue in the frame area of the substrate 1 after the substrate 1 is packaged is effectively limited (the glue width is the maximum width of the frame sealing glue after the box matching process); the narrower the glue width of the frame region, the narrower the widths of the frame region of the display substrate and the display device.
The invention realizes a display substrate with narrower frame and a display device by arranging the obstacle. Secondly, the setting position, the setting height, the width and other parameters of the barriers are preset, so that the position of the barriers arranged on the substrate is determined, and correspondingly, the maximum glue width and the position of the frame sealing glue are determined. After the box-to-box process of the display substrate, a cutting process flow of the display device is further included.
Referring to fig. 12, the cutting area C is located in a certain area of the edge of the substrate 1 adjacent to the dam 11. The size of the cutting area C is enough to ensure that the obstacle 11 closest to the cutting area C is not cut. After the maximum glue width d and the position of the frame sealing glue 13 are determined, the width of the cutting area C only needs to ensure the precision of the cutting knife wheel, and since the precision of the cutting knife wheel is not greater than 0.04mm, the minimum frame width of the display substrate 1 can reach the sum of the glue width of the frame sealing glue 13, the distribution width of the obstacle 11 and the precision of the cutting knife wheel. The width of the frame of the substrate for display is greatly reduced, and the purpose of the substrate for display or the display device with the ultra-narrow frame is achieved.
The display substrate according to the embodiment of the present invention may be any substrate suitable for display, and preferably, the display substrate according to the embodiment of the present invention may be, but is not limited to, a color film substrate or an array substrate.
The invention can arrange the obstacle on one side or two sides of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate; one or more barriers may be disposed on one side of the edge of the frame sealing adhesive, and one or more barriers may be disposed on the other side of the edge of the frame sealing adhesive, for example, two barriers may be disposed on two sides of the edge of the frame sealing adhesive, respectively, so as to ensure that the deformed frame sealing adhesive does not flow into the display region and the cutting region.
Referring to fig. 3 to 6, a barrier 11 is disposed on a side of an edge of a frame sealing adhesive 13 for packaging the substrate 1 to be formed on the substrate 1, which is far away from an AA area; or, barriers 11 are arranged on two sides of the edge of the frame sealing glue 13 for packaging the substrate 1 to be formed on the substrate 1.
The barriers 11 are arranged on two sides of the edge of the frame sealing glue 13, so that the deformed frame sealing glue 13 can be limited to flow to the display area AA and the cutting area C, the glue width of the frame sealing glue 13 is accurately controlled, and the frame sealing glue 13 is prevented from flowing into the display area AA to cause poor display or flowing into the cutting area C to cause corresponding poor display.
In the substrate for display in any of the manners shown in fig. 2 to 6, the number of the barriers disposed on one side or both sides of the edge of the frame sealing adhesive to be formed on the substrate for packaging the substrate is not limited, and the barriers surround the entire display region.
In one preferred embodiment, referring to fig. 4, at least one obstacle 11 is disposed on one side of the frame sealing adhesive for packaging the substrate 1 to be formed on the substrate 1, the side being close to the display area (AA area); or at least two barriers with a certain gap are arranged on one side, away from the display area (AA area), of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate.
Preferably, referring to fig. 5 and 6, the blocking object 11 is surrounded at two sides of the edge of the frame sealing adhesive 13 to be formed on the substrate 1 for packaging the substrate 1, that is, the blocking object 11 located at one side of the edge of the frame sealing adhesive 13 close to the display area AA and close to the cutting area C is closed, so that the deformed frame sealing adhesive can be completely blocked from flowing to the display area AA and the cutting area C.
Further, the two barriers 11 are located on a side of the edge of the frame sealing adhesive 13 away from the AA region, where the barrier 11 near the edge of the frame sealing adhesive 13 may be in an unclosed or closed state, and the barrier 11 closest to the cutting region C is in a closed state, so as to completely block the deformed frame sealing adhesive from flowing to the cutting region C.
In the display substrate of any of the embodiments shown in fig. 2 to 6, the shape of the dam 11 is not limited as long as the dam can block the deformed frame sealing adhesive.
Preferably, the shape of the cross-section of the dam 11 may be, but is not limited to, a rectangle, a circle, an ellipse, a regular polygon, or the like.
Preferably, referring to fig. 6, the distance L between the dam 11 and the edge of the sealant 13 for the package substrate 1 to be formed on the substrate 1 is 0 to 0.5 μm, that is, 0 to 0.5 μm respectively away from the two sides of the sealant to be formed on the substrate 1.
More preferably, one or more barriers 11 are arranged in the range of 0-0.5 μm away from the two sides of the frame sealing glue before deformation. The maximum frame sealing glue width after deformation is about the sum of the frame sealing glue width before deformation and the width of 2 x 0.5 μm. The actual width and position of the deformed frame sealing glue are consistent with the preset glue width and position of the frame sealing glue. The position and the glue width of the frame sealing glue are accurately controlled by arranging the barriers on the film layer.
In the display substrate of any of the embodiments shown in fig. 2 to 6, parameters such as the height and width of the dam 11 are not limited. For the existing various types of substrates for display, the height range of the barriers 11 is preferably 0.5-6 μm; the width of the dam 11 is 10 to 50 μm. The height of the obstacle 11 is preferably not higher than the height of the frame sealing adhesive after curing because there are supports for supporting the peripheral height, such as glass fiber or silicon ball, in the frame sealing adhesive, and the height of the frame sealing adhesive after curing is equal to the height of the supports in the frame sealing adhesive, that is, the height of the obstacle is less than or equal to the height of the frame sealing adhesive after curing.
Further, the barrier and the color resin layer on the substrate are arranged in the same layer; or in the same layer as the spacer layer on the substrate.
If the display substrate is a color filter substrate, a color resin layer is usually disposed on the color filter substrate, for example, the color filter substrate includes a red resin (R), a green resin (G), a blue resin (B), or other color resin layers, and a black matrix layer and a spacer are usually disposed on the color filter substrate.
According to the invention, the accurate position and width of the frame sealing glue (namely the deformed frame sealing glue) on the display substrate before cutting after the box is determined, the minimum width of the cutting area can be determined, the width of the cutting area is equal to the distance between the edge of the substrate and the obstacle, preferably, the distance C between the edge of the substrate and the obstacle ranges from 0.05 mm to 0.1mm, and the distance is greater than the precision of the cutting knife wheel by 0.04mm, so that the method can be realized, and the display device after cutting does not have defects caused by cutting.
A display device provided by an embodiment of the present invention will be described below.
The display device can be, but is not limited to, a liquid crystal display panel, electronic paper, an organic light emitting display panel, a mobile phone terminal, a tablet computer, a television, a display, a notebook computer, a digital photo frame, or a navigator and the like; wherein the display device comprises the substrate for display in any mode.
Referring to fig. 12, one embodiment of the display device includes a first substrate 10 and a second substrate 20 disposed opposite to each other, and the first substrate 10 or the second substrate 20 is a display substrate according to any one of the above embodiments.
Preferably, one of the first substrate 10 and the second substrate 20 is an array substrate, and the other is a color filter substrate.
Referring to fig. 12, in the display device provided by the present invention, the blocking object 11 for blocking the frame sealing adhesive deformed when the first substrate 10 and the second substrate 20 are packaged is respectively disposed in the frame region of the first substrate 10 or the second substrate 20. When the first substrate 10 and the second substrate 20 are paired, the deformed frame sealing glue 13 flows to the barriers 11 at the two sides of the edge and is filled between the barriers 11 at the two sides of the edge of the frame sealing glue 13; compared with the prior art, the glue width d of the frame sealing glue is reduced.
Firstly, if the frame width of the display panel is fixed, the glue width d of the frame sealing glue is reduced, the width of the cutting area C is increased, the probability of cutting the frame sealing glue when the cutting knife wheel cuts the mother board of the display device is reduced, and the yield of the display device is improved.
Secondly, the position of the blocking object arranged in the frame area is determined, if the frame sealing glue flowing towards the cutting area C is completely blocked by the blocking object, the position of the frame sealing glue can be determined, the width of the cutting area C only needs to ensure the precision of the cutting knife wheel, and the width range of the cutting area C is 0.05-0.1 mm. Because the precision of the cutting knife wheel is not more than 0.04mm, the minimum width of the display device can reach the sum of the glue width d of the frame sealing glue, the width L of each obstacle and the precision of the cutting knife wheel. The width of the frame of the display device is greatly reduced, and the purpose of ultra-narrow frame is realized.
In summary, the width of the cutting area C of the invention can be limited to be more than 0.04mm of the maximum precision of the cutter wheel, i.e. the distance between the edge of the first substrate and the edge of the second substrate is 0.05-0.1 mm from the obstacle. Compared with the prior art, the shortest distance between the edge of the first substrate and the edge of the second substrate and the frame sealing glue is more than 0.2mm, so that the width of the frame of the display device is greatly reduced, and the display device with the ultra-narrow frame is realized. The glue width of the frame sealing glue is further reduced compared with the prior art, the size and the position of the glue width can be accurately controlled, the defects caused by cutting can not be caused when the ultra-narrow frame is realized, and the reject ratio of the display device is improved.
The manufacturing method of the display substrate provided by the invention comprises the following steps: and manufacturing at least one obstacle in the frame area of the substrate, wherein the obstacle is used for blocking the deformed frame sealing glue when the substrate is packaged. The method specifically comprises the following steps: and arranging the barriers at two sides of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate.
Preferably, the manufacturing of at least one obstacle in the frame area of the substrate includes:
forming a pattern of a color resin layer in a display area of the substrate, and simultaneously forming a pattern of the barrier in a frame area of the substrate; or,
and forming a pattern of a spacer in a display area of the substrate, and forming a pattern of the barrier in a frame area of the substrate.
Further, the blocking object is formed in the range of 0-0.5 mu m away from the edge of the frame sealing glue for packaging the substrate to be formed on the substrate.
Furthermore, barriers with the height range of 0.5-6 microns and the width range of 10-50 microns are formed on two sides of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate.
The method for manufacturing the display device provided in the above embodiment will be specifically described below from the viewpoint of process flow.
Taking the first substrate as an array substrate and the second substrate as a color film substrate, and making an obstacle on the color film substrate as an example, the method comprises the following steps:
in step S11, as shown in fig. 7, a red R, green G, and blue B resin layer, a black matrix 24, and a spacer 25 (also referred to as a support, abbreviated as PS) are formed on the color filter substrate 20 through a patterning process such as masking, exposure, and development, and a pattern of the dam 11 is formed in the frame region of the color filter substrate 20.
The barrier 11 may be formed by an independent one-step patterning process, or formed when forming other functional film layers on the color film substrate 20; several embodiments of barriers on a color filter substrate will be described below.
The first embodiment: formed when a resin layer of red R (red), G (green), B (blue), W (white), or the like is formed; r, G, B or the portion of the W resin layer where the frame region remains, forming the dam 11 through a patterning process; r, G, B or W single-layer resin is used as the barrier 11, and the formed color film substrate 20 is shown in fig. 7;
second embodiment: formed when any two of the R, G, B resin layers are formed; r, G and B resin, forming a barrier 11; the formed color filter substrate 20 is shown in fig. 8;
the third embodiment: in forming the pattern of the spacers 25 in fig. 7, the pattern of the barriers 11 is formed; the formed color filter substrate 20 is shown in fig. 9;
the fourth embodiment: forming a pattern of the barrier 11 when forming R, G, B or W single layer resin and spacer 25 patterns, that is, depositing each resin layer and spacer layer on both the display area and the frame area of the substrate, and then forming a pattern of the barrier 11 on the frame area of the substrate when forming each resin layer pattern and spacer 25 pattern through the patterning process, that is, leaving a portion of the film layer to form a barrier 11 pattern with protrusions; the formed color filter substrate 20 is shown in fig. 10;
that is, the dam 11 is made of at least one of a red resin material, a green resin material, a blue resin material, or a white resin material for making a color resin layer of the display region of the color filter substrate 20, and a material for making the spacer 25 of the display region of the color filter substrate 20.
Or when the barrier is formed on the array substrate, the barrier is formed at the same time with other functional film layers (e.g., a gate layer, a gate insulating layer, an active layer, a source drain layer, a passivation layer, etc. in the thin film transistor TFT) of the array substrate, for example, referring to fig. 11, the barrier 11 is formed when any one of the gate layer, the gate insulating layer, the active layer, the source drain layer, the passivation layer, etc. in the TFT14 is fabricated on the array substrate 10; or the barrier may be formed separately, and the embodiment is not limited. Parameters such as the number, shape, and material of the barriers 11 disposed on the array substrate shown in fig. 11 are not limited, and the disposition position of the thin film transistor TFT14 is not limited, that is, fig. 11 is only used to illustrate that when the barriers are formed on the array substrate, the barriers are formed at the same time with other functional film layers forming the array substrate.
Step S12, referring to fig. 12, coating the sealant 13 on the color film substrate 20; the thickness and the width of the frame sealing glue 13 are preset values and are similar to those of the prior art, and are not limited here; generally, the width of the frame sealing adhesive 13 is about 0.3 mm.
In step S13, referring to fig. 12, the color filter substrate 20 and the array substrate 10 are sealed.
When the display device is a liquid crystal display panel, the box is aligned in a liquid crystal pre-dropping mode, vacuum pumping is performed, the color film substrate 20 and the array substrate 10 are pressed under atmospheric pressure until internal and external forces are balanced, the frame sealing glue 13 flows to a surrounding flat layer under the extrusion of the pressing force, and according to the principle of volume fixation of the frame sealing glue 13 to the front and the back of the box, the width of the frame sealing glue 13 deformed after aligning the box is ensured to be not more than the width of a blocking object covering area in design, for example, the blocking object manufactured in the range of 0-0.5 mu m near the frame sealing glue 13 area can block all the deformed frame sealing glue, so that the glue width precision is controlled.
Step S14, further includes curing the sealant 13 to form a liquid crystal cell for display.
In summary, embodiments of the present invention provide a substrate for display, a method for manufacturing the substrate for display, and a display device, in which at least one blocking object is disposed in a frame region of the substrate, and the blocking object is used to block a frame sealing adhesive that is deformed when the substrate is packaged, so as to reduce a distribution range of the frame sealing adhesive on the substrate, that is, reduce a glue width of the frame sealing adhesive in the packaged substrate, thereby reducing a width of a frame of the substrate for display, and reducing a frame of a display device including the substrate for display, and implement a display device with a narrower frame. For the display device, the barriers are arranged on the two sides of the edge of the undistorted frame sealing glue, so that the frame sealing glue can be prevented from flowing to the display area, and the poor image quality of the periphery of the display area can be improved. Finally, the obstacle can control the width and position precision of the frame sealing glue, can reduce the distance from the frame sealing glue to the cutting area, and can also reduce the distance from the frame sealing glue to a conductive layer pattern of a line driving circuit board arranged on the array substrate aiming at the twisted nematic liquid crystal display panel.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. The substrate for display is characterized by comprising a display area and a frame area, wherein at least one obstacle is arranged in the frame area of the substrate and used for blocking frame sealing glue deformed when the substrate is packaged.
2. The substrate according to claim 1, wherein the substrate is an array substrate or a color filter substrate.
3. The substrate according to claim 1, wherein the barriers are respectively disposed on both sides of an edge of a frame sealing adhesive to be formed on the substrate for encapsulating the substrate.
4. The substrate according to claim 3, wherein the dam is surrounded at two sides of an edge of a frame sealing adhesive to be formed on the substrate for encapsulating the substrate.
5. The substrate according to claim 1, wherein at least one block is disposed on a side of an edge of the frame sealing adhesive for encapsulating the substrate to be formed on the substrate, the side being close to the display region; or,
and arranging at least two barriers with a certain gap on one side of the edge of the frame sealing glue for packaging the substrate to be formed on the substrate, which is far away from the display area.
6. The substrate according to claim 1, wherein the distance between the dam and the edge of the sealant to be formed on the substrate for encapsulating the substrate is 0 to 0.5 μm.
7. The substrate for display according to claim 1, wherein the height of the barrier is in the range of 0.5 to 6 μm, and the width of the barrier is in the range of 10 to 50 μm.
8. The display panel according to claim 1, wherein the barrier has a cross-sectional shape of a circle, an ellipse, or a regular polygon.
9. The substrate for display according to claim 1, wherein a distance between the edge of the substrate and the barrier is in a range of 0.05 to 0.1 mm.
10. The substrate for display according to claim 1, wherein the barrier is provided in the same layer as the color resin layer on the substrate or in the same layer as the spacer layer on the substrate.
11. A display device comprising a first substrate and a second substrate which are provided in a cell, wherein the first substrate or the second substrate is the display substrate according to any one of claims 1 to 10.
12. The display device according to claim 11, wherein one of the first substrate and the second substrate is an array substrate, and the other is a color filter substrate.
13. A method for manufacturing a substrate for display, comprising:
and manufacturing at least one obstacle in the frame area of the substrate, wherein the obstacle is used for blocking the deformed frame sealing glue when the substrate is packaged.
14. The method of claim 13, wherein the fabricating at least one barrier in the border region of the substrate comprises:
forming a pattern of a color resin layer in a display area of the substrate, and simultaneously forming a pattern of the barrier in a frame area of the substrate; or,
and forming a pattern of a spacer in a display area of the substrate, and forming a pattern of the barrier in a frame area of the substrate.
15. The method according to claim 13, wherein the barrier is formed in a range of 0 to 0.5 μm from both sides of an edge of a frame sealing adhesive to be formed on the substrate for encapsulating the substrate to the edge.
16. The method according to claim 13, wherein barriers having a height of 0.5-6 μm and a width of 10-50 μm are formed on both sides of an edge of the frame sealing adhesive to be formed on the substrate for encapsulating the substrate.
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