CN109979333B - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
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- CN109979333B CN109979333B CN201910410837.6A CN201910410837A CN109979333B CN 109979333 B CN109979333 B CN 109979333B CN 201910410837 A CN201910410837 A CN 201910410837A CN 109979333 B CN109979333 B CN 109979333B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 100
- 239000000758 substrate Substances 0.000 claims abstract description 73
- 238000009413 insulation Methods 0.000 claims abstract description 57
- 238000005336 cracking Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims description 20
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The invention relates to the technical field of display equipment, and discloses a display panel, a manufacturing method thereof and a display device, wherein the display panel comprises: the cutting edge of the array substrate comprises at least one corner which is concave to the inside of the array substrate; the anti-cracking dam is arranged in the area, close to the cutting edge, of the array substrate; and the heat insulation dam is arranged between the anti-cracking dam and the cutting edge and is close to a corner which is concave to the inside of the array substrate in the cutting edge. The display panel is additionally provided with the heat insulation dam near the cutting edge, so that the generation of cracks in the cutting process is reduced, the yield of the display panel is improved, and the display effect is improved.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a display panel, a manufacturing method of the display panel and a display device.
Background
The display panel needs to be subjected to special-shaped cutting in the manufacturing process, in the special-shaped cutting process, heat is diffused inwards when the cutting area is concave to the corner inside the array substrate, stress at the corner cannot be released due to heat influence, the corner in the cutting area is prone to being broken, and the fixed position line is poor.
Disclosure of Invention
The invention provides a display panel, a manufacturing method thereof and a display device.
In order to achieve the purpose, the invention provides the following technical scheme:
a display panel, comprising:
the array substrate comprises an array substrate, wherein the cutting edge of the array substrate comprises at least one corner concave to the inside of the array substrate;
an anti-cracking dam disposed in a region of the array substrate near the cutting edge;
and the thermal insulation dam is arranged between the anti-cracking dam and the cutting edge and is close to the corner of the cutting edge which is concave to the inside of the array substrate.
The display panel comprises an array substrate, and an anti-cracking dam and a heat insulation dam which are arranged on the array substrate, wherein the edge of the array substrate is a cutting edge, the cutting edge comprises at least one corner, a plurality of anti-cracking dams are arranged in the area, close to the cutting edge, of the array substrate, and the heat insulation dam is formed between the cutting edge, concave to the inner corner of the array substrate, of the cutting edge and the anti-cracking dam; in the forming process of the cutting edge, the anti-cracking dam can effectively prevent the array substrate from cracking or breaking in the cutting process; in the forming process of the cutting edge, the heat insulation dam absorbs heat generated by the cutting edge in the cutting process, the heat generated in the cutting process is prevented from diffusing to the inside of the array substrate, the generation of cracks of the array substrate at the corner of the cutting edge due to stress generated by thermal diffusion is prevented, the bad condition of the center line of a product is favorably reduced, and the product yield and the display effect are improved.
Preferably, the thermal insulation dam extends in a direction parallel to the cutting edge.
Preferably, the thermal insulation dam has a shape of an "L" opening toward the cutting edge.
Preferably, the thermal insulation dam comprises at least two rows of rectangular small blocks arranged at intervals, and the thermal insulation dam comprises a first edge extending along a first direction and a second edge extending along a second direction, wherein,
every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction.
Preferably, the material of the thermal insulation dam is amorphous silicon.
Optionally, each corner of the concave array substrate comprises one thermal insulation dam.
Optionally, each of the corners recessed into the array substrate includes a plurality of thermal insulation dams.
Preferably, the anti-cracking dam is parallel to the thermal insulation dam.
The invention also provides a manufacturing method of the display panel, which comprises the following steps:
s1: the array substrate mother board comprises a cutting line area, an area to be removed and a reserved area, wherein the area to be removed is positioned on one side of the cutting line area, and the reserved area is positioned on the other side of the cutting line area;
s2: forming an anti-cracking dam at a corner close to the cutting line region in a reserved region in the array substrate motherboard through a mask process;
s3: forming an anti-cracking dam at a corner close to the cutting line region in a reserved region in the array substrate motherboard through a mask process;
s4: and cutting along the cutting line area to obtain the array substrate.
The invention also provides a display device which comprises the display panel provided in the technical scheme.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to the present invention;
FIG. 2 is a schematic partial enlarged view of a first thermal barrier in a display panel according to the present invention;
FIG. 3 is a schematic view of a second thermal barrier of a display panel according to an embodiment of the present invention;
FIG. 4a is a schematic cross-sectional view of a display panel with a thermal barrier dam disposed at each corner according to the present invention;
FIG. 4b is a schematic cross-sectional view of a display panel with two thermal dams at each corner according to the present invention;
fig. 5 is a flowchart of a method for manufacturing a display panel according to the present invention.
Icon:
1-an array substrate; 2-a cutting line region; 3-the area to be removed; 4-reserved area; 5-heat insulation dam; 6-anti-cracking dam; 7-driving the chip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a display panel, including:
the array substrate comprises an array substrate 1, wherein the cutting edge of the array substrate 1 comprises at least one corner A concave to the interior of the array substrate;
the anti-cracking dam 6 is arranged in the area, close to the cutting edge, of the array substrate 1;
and the heat insulation dam 5 is arranged between the anti-cracking dam 6 and the cutting edge and is close to a corner in the cutting edge, which is concave to the inside of the array substrate.
The display panel comprises an array substrate 1, and an anti-cracking dam 6 and a thermal insulation dam 5 which are arranged on the array substrate 1, wherein the edge of the array substrate 1 is a cutting edge, the cutting edge comprises at least one corner, a plurality of anti-cracking dams 6 are arranged in the area, close to the cutting edge, of the array substrate 1, and the thermal insulation dam 5 is formed between the cutting edge of the corner of the cutting edge and the anti-cracking dams 6; in the forming process of the cutting edge, the anti-cracking dam 6 can effectively prevent the array substrate 1 from cracking or breaking in the cutting process; in the forming process of the cutting edge, the heat insulation dam 5 absorbs heat generated by the cutting edge in the cutting process, the heat generated in the cutting process is prevented from diffusing to the inside of the array substrate 1, the array substrate 1 is prevented from generating cracks at the corner of the cutting edge due to stress generated by thermal diffusion, the bad condition of the center line of a product is favorably reduced, and the product yield and the display effect are improved.
Specifically, the number of the anti-cracking dams 6 at each corner of the display panel is multiple, and as shown in fig. 4a and 4b, the number of the anti-cracking dams 6 at each corner is two; the number of the thermal insulation dams 5 at each corner of the display panel is one or more, as shown in fig. 4a, the number of the thermal insulation dams 5 at each corner is one, as shown in fig. 4b, the number of the thermal insulation dams 5 at each corner is two; a plurality of thermal insulation dams 5 can be arranged at each corner close to the cutting edge side by side, the more the thermal insulation dams 5 are, the better the thermal insulation effect is, and the number of the thermal insulation dams 5 can be adjusted according to the space size.
Specifically, as shown in fig. 2, the thermal insulation dam 5 extends in a direction parallel to the cutting edge.
The thermal insulation dam 5 extends in parallel with the cutting edge and is disposed in a region near a corner of the cutting edge, which helps to sufficiently absorb heat during the formation of the cutting edge and prevents the heat generated at the corner of the cutting edge from being diffused toward the array substrate 1.
Specifically, as shown in fig. 3, the shape of the thermal insulation dam 5 is "L" shape with the opening facing the cutting edge, and "U" shape or circular shape or other shapes may be adopted, which is not limited herein.
Specifically, when the thermal insulation dam 5 has an "L" shape, an embodiment is that the thermal insulation dam 5 includes at least two rows of rectangular blocks arranged at intervals, and the thermal insulation dam 5 includes a first side extending in a first direction and a second side extending in a second direction, wherein,
in the first embodiment, every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction;
in the second embodiment, every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction;
in the third embodiment, every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction;
in the fourth embodiment, each two adjacent rows of rectangular small blocks on the first side partially overlap in the direction perpendicular to the first direction, and each two adjacent rows of rectangular small blocks on the second side do not overlap in the direction perpendicular to the second direction.
The thermal insulation dam 5 is in an L shape with an opening facing the cutting edge, so that heat generated in the cutting process can be fully absorbed in the forming process of the cutting edge, and the heat is prevented from being diffused to the array substrate 1; in the first embodiment, the thermal insulation dam 5 comprises at least two rows of rectangular small blocks arranged at intervals, and the thermal insulation dam 5 comprises a first side extending along a first direction and a second side extending along a second direction, wherein every two adjacent rows of rectangular small blocks on the first side do not overlap in a direction perpendicular to the first direction, and every two adjacent rows of rectangular small blocks on the second side do not overlap in a direction perpendicular to the second direction; the rectangular small blocks distributed at intervals can play a role in eliminating heat, so that the heat is better prevented from spreading inwards; in other embodiments, each two adjacent rows of rectangular patches on the first side partially overlap in a direction perpendicular to the first direction, and each two adjacent rows of rectangular patches on the second side partially overlap in a direction perpendicular to the second direction; or, every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or, every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction; in these three embodiments, there is a case where two adjacent rows of rectangular small blocks partially overlap in a direction perpendicular to the first direction/the second direction, and this design reduces the gap between the adjacent rectangular small blocks in each row and increases the contact area between the contacted rectangular small blocks, compared with the first embodiment, this embodiment can also function to absorb heat, thereby blocking the inward spread of heat, and the fixation between the rectangular small blocks in the thermal insulation dam 5 is firmer.
Specifically, the material of the thermal insulation dam 5 is amorphous silicon.
The amorphous silicon has the characteristic of heat absorption, the heat insulation dam 5 made of the amorphous silicon can effectively prevent heat from diffusing to the direction of the array substrate 1 far away from the cutting edge during cutting, stress generated due to heat influence is eliminated, cracks generated near the corner of the cutting edge are reduced, and accordingly poor display of the display panel is reduced.
Specifically, the thermal insulation dam 5 is disposed at a corner of the array substrate 1 near the driving chip 7.
The thermal insulation dam 5 is arranged at the corner of the array substrate 1 close to the driving chip 7, so that the phenomenon that in the process of forming the cutting edge, due to the fact that heat in the cutting process diffuses towards the array substrate 1, the fixed position line of the driving chip 7 at the corner is poor is prevented, and the yield of display products is improved.
Specifically, the crack prevention dam 6 is parallel to the thermal insulation dam 5.
The anti-cracking dam 6 is arranged in parallel with the thermal insulation dam 5, so that the array substrate 1 is prevented from being broken or cracked in the process of forming the cutting edge.
The invention also provides a manufacturing method of the display panel, as shown in fig. 5, the method comprises the following steps:
s1: the array substrate comprises an array substrate 1 mother board, wherein the array substrate 1 mother board comprises a cutting line area 2, an area to be removed 3 positioned on one side of the cutting line area 2 and a reserved area 4 positioned on the other side of the cutting line area 2;
s2: forming an anti-cracking dam 6 at a corner close to the cutting line region 2 in a reserved region 4 in the array substrate 1 mother board through a mask process;
s3: forming a heat insulation dam 5 between the anti-cracking dam 6 and a corner concave to the inside of the array substrate in the cutting line area 2 through a mask process;
s4: and cutting along the cutting line region 2 to obtain the array substrate 1.
In the manufacturing process of the display panel, first, according to step S1: firstly, manufacturing a mother board of an array substrate 1, wherein the mother board of the array substrate 1 comprises a cutting line area 2, an area to be removed 3 positioned on one side of the cutting line area 2 and a reserved area 4 positioned on the other side of the cutting line area 2; after the array substrate 1 mother board is cut along the cutting line area 2 and the reserved area 4 and the area to be removed 3 are separated along the cutting line area 2, the reserved area 4 needing to be reserved is the array substrate 1, and the edge of the array substrate 1 is a cutting edge; then, according to step S2: forming an anti-cracking dam 6 at a corner, close to the cutting line region 2, in the reserved region 4 in the array substrate 1 mother board through a mask process, so as to prevent the array substrate 1 mother board from cracking or breaking in the reserved region 4 in the cutting process; then, according to step S3: the thermal insulation dam 5 is formed between the anti-cracking dam 6 and the corner, concave to the interior of the array substrate, in the cutting line area 2 through a mask process, the thermal insulation dam 5 can absorb heat, so that the heat is prevented from diffusing into the reserved area 4 during cutting, stress generated due to thermal influence is eliminated, cracks are reduced, and the thermal insulation dam 5 is manufactured through the mask process, so that the manufacturing method is simple; finally according to step S4: and cutting along the cutting line region 2 to obtain the array substrate 1.
The invention also provides a display device which is characterized by comprising the display panel provided by the technical scheme.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of 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 (8)
1. A display panel, comprising:
the array substrate comprises an array substrate, wherein the cutting edge of the array substrate comprises at least one corner concave to the inside of the array substrate;
an anti-cracking dam disposed in a region of the array substrate near the cutting edge;
the thermal insulation dam is arranged between the anti-cracking dam and the cutting edge, is close to the cutting edge, is concave towards the interior of the array substrate and is close to the corner of the driving chip;
the heat insulation dam comprises at least two rows of small rectangular blocks which are arranged at intervals; the thermal insulation dam is shaped as an "L" opening toward the cutting edge, the thermal insulation dam including a first side extending in a first direction and a second side extending in a second direction, wherein:
every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction.
2. The display panel according to claim 1, wherein an extending direction of the thermal insulation dam is parallel to the cut edge.
3. The display panel according to claim 1, wherein the thermal barrier is made of amorphous silicon.
4. The display panel according to claim 1, wherein each of the corners recessed toward an inside of the array substrate includes one of the thermal insulating dams.
5. The display panel according to claim 1, wherein each of the concave array substrate includes a plurality of the thermal insulation dams at a corner thereof.
6. The display panel according to any one of claims 1 to 5, wherein the crack prevention dam is parallel to the thermal insulation dam.
7. A method for manufacturing a display panel, the method comprising:
the array substrate mother board comprises a cutting line area, an area to be removed and a reserved area, wherein the area to be removed is positioned on one side of the cutting line area, and the reserved area is positioned on the other side of the cutting line area;
forming an anti-cracking dam at a corner close to the cutting line region in a reserved region in the array substrate motherboard through a mask process;
forming a heat insulation dam between the anti-cracking dam and a corner which is concave to the inside of the array substrate and close to the driving chip in the cutting line area through a mask process;
cutting along the cutting line area to obtain an array substrate;
the heat insulation dam comprises at least two rows of small rectangular blocks which are arranged at intervals; the thermal insulation dam is shaped as an "L" opening toward the cutting edge, the thermal insulation dam including a first side extending in a first direction and a second side extending in a second direction, wherein:
every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are not overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are partially overlapped in the direction perpendicular to the second direction; or,
every two adjacent rows of the rectangular small blocks on the first side are partially overlapped in the direction perpendicular to the first direction, and every two adjacent rows of the rectangular small blocks on the second side are not overlapped in the direction perpendicular to the second direction.
8. A display device comprising the display panel according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910410837.6A CN109979333B (en) | 2019-05-17 | 2019-05-17 | Display panel, manufacturing method thereof and display device |
| PCT/CN2020/086519 WO2020233339A1 (en) | 2019-05-17 | 2020-04-23 | Display device and manufacturing method thereof |
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| CN201910410837.6A CN109979333B (en) | 2019-05-17 | 2019-05-17 | Display panel, manufacturing method thereof and display device |
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| CN109979333A CN109979333A (en) | 2019-07-05 |
| CN109979333B true CN109979333B (en) | 2022-01-28 |
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| CN109979333B (en) * | 2019-05-17 | 2022-01-28 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110264891B (en) * | 2019-07-18 | 2022-02-01 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
| CN110320698B (en) | 2019-07-23 | 2020-10-13 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN110867471B (en) * | 2019-11-22 | 2022-12-16 | 京东方科技集团股份有限公司 | Display substrate mother board and cutting method thereof |
| CN111710700B (en) * | 2020-06-28 | 2023-05-19 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111798759B (en) * | 2020-07-17 | 2021-12-28 | 京东方科技集团股份有限公司 | Flexible display device and electronic equipment |
| CN113193015B (en) * | 2021-04-16 | 2022-07-12 | 武汉华星光电技术有限公司 | Display panel, preparation method thereof and display device |
| CN113192983B (en) * | 2021-04-19 | 2022-12-06 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN114460773B (en) * | 2022-01-27 | 2023-09-26 | 武汉华星光电技术有限公司 | Display panel to be cut, display panel and display device |
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| CN109979333A (en) | 2019-07-05 |
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