CN113199338A - Display panel, edging method thereof and display device - Google Patents
Display panel, edging method thereof and display device Download PDFInfo
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- CN113199338A CN113199338A CN202110445914.9A CN202110445914A CN113199338A CN 113199338 A CN113199338 A CN 113199338A CN 202110445914 A CN202110445914 A CN 202110445914A CN 113199338 A CN113199338 A CN 113199338A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
Abstract
The application discloses display panel, edging method and display device thereof, and the edging method comprises the following steps: providing a display panel which is cut and is to be edged, wherein the side edge of the display panel is provided with a cut special-shaped end face; providing a grinding head with a concave and symmetrical U-shaped grinding surface, and aligning the grinding head with the side edge of the display panel in a lateral manner, wherein the U-shaped grinding surface is opposite to the special-shaped end surface; the grinding head is used for edging the special-shaped end face in a side-running mode, wherein the grinding head moves relative to the display panel along the direction parallel to the side edge of the display panel and edging the special-shaped end face in a side-running mode, and therefore the display panel can be effectively prevented from being cracked or broken in a penetrating mode.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel, an edging method thereof and a display device.
Background
When a glass substrate is cut into a panel (panel), the whole strength of the glass is easily low due to the defects caused by cutting of the glass end face, a penetrating crack is easily generated in a curved surface state, and the glass is easily broken when the glass is packaged, transported, processed and dropped by vibration of a packing material.
It is desirable to provide a display panel, an edge grinding method thereof and a display device to avoid penetrating cracks or fragments which are easily generated after a glass substrate is cut into a panel.
Disclosure of Invention
The application provides a display panel, an edge grinding method thereof and a display device, which can effectively avoid the display panel from generating penetrating cracks or fragments.
The embodiment of the application provides an edging method of a display panel, which comprises the following steps: providing a display panel which is cut and is to be edged, wherein the side edge of the display panel is provided with a cut special-shaped end face; providing a grinding head with concave and symmetrical U-shaped grinding surfaces; aligning the grinding head with the side edge of the display panel, wherein the U-shaped grinding surface is opposite to the special-shaped end surface; and enabling the grinding head to grind the special-shaped end face, wherein the grinding head is enabled to move relative to the display panel along the direction parallel to the side edge of the display panel and grind the special-shaped end face.
Optionally, in some embodiments of the present application, in the step of aligning the grinding head with the side edge of the display panel, an extension plane of a half-thickness position of the display panel is used as a reference plane, and a symmetrical surface of the U-shaped grinding surface of the grinding head is aligned with the reference plane.
Optionally, in some embodiments of the present application, in the step of edging the irregular end surface by the grinding head, the side edge of the display panel has an arc-shaped cross section that is convex and symmetrical with respect to the reference plane.
Optionally, in some embodiments of the present application, in the step of grinding the irregular end surface by the grinding head, a width of an orthogonal projection of the side edge of the display panel on the reference surface is 150 um.
Correspondingly, the embodiment of the present application further provides a display panel, where the display panel has a color film substrate made of glass, an array substrate made of glass, and a liquid crystal layer sandwiched between the color film substrate and the array substrate, an extension plane at a half thickness position of the display panel is used as a reference plane, and a side of the display panel has an arc-shaped cross section which protrudes outward and is symmetrical with respect to the reference plane.
Alternatively, in some embodiments of the present application, the arc-shaped cross section is any one of a paraboloid and a half ellipsoid formed by countless parabolas.
Optionally, in some embodiments of the present application, the arc-shaped cross section includes a first smooth edge and a second smooth edge that are smoothly connected, and the first smooth edge and the second smooth edge are symmetrical with respect to the reference plane.
Optionally, in some embodiments of the present application, the first smooth edge is located on a side of the color filter substrate, and the second smooth edge is located on a side of the array substrate.
Optionally, in some embodiments of the present application, a surface of the color filter substrate connected to the first smooth edge is not tangent to the first smooth edge, and a surface of the array substrate connected to the second smooth edge is not tangent to the second smooth edge.
Correspondingly, the embodiment of the application also provides a display device, which comprises the display panel.
The embodiment of the application provides display panel's edging method display panel reaches display device through the bistrique that has the U-shaped grinding face of indent and symmetry to display panel's dysmorphism terminal surface edging, wherein the bistrique the symmetry of U-shaped grinding face is aimed at the benchmark is faced dysmorphism terminal surface edging. The display panel provided by the embodiment of the application comprises a color film substrate made of glass and an array substrate made of glass, wherein an extension plane at a half thickness position of the display panel is taken as a reference plane, and the side edge of the display panel is provided with an arc-shaped cross section which protrudes outwards and is symmetrical relative to the reference plane. By optimizing the shape design and parameter design of the arc-shaped cross section of the side edge of the display panel, the overall strength of the display panel can be effectively improved. In the process of processing the arc-shaped cross section, the grinding head moves relative to the display panel along the direction parallel to the side edge of the display panel and grinds the edge of the special-shaped end face, so that the strength of a color film substrate made of glass and an array substrate made of glass, which are contained in the display panel, can be effectively improved, and the display panel is greatly prevented from being subjected to penetrating cracks or fragments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a display panel before edging provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a display panel provided in an embodiment of the present application;
fig. 3a is a flowchart of an edging method of a display panel according to an embodiment of the present application;
fig. 3b is a schematic structural diagram of a grinding head provided in the embodiment of the present application;
fig. 4a, 4b and 4c are schematic diagrams illustrating a state in which the grinding head provided by the embodiment of the application grinds an irregular end surface of a display panel.
Description of reference numerals:
10. a display panel; 110. a special-shaped end face;
14. an arc-shaped cross section; 103. a chip on film;
104. a circuit board; 11. an array substrate;
12. a color film substrate; 15. a first smooth edge;
16. a second smooth edge; C. a point of symmetry;
m, a first intersection point; n, a second intersection point;
20. grinding heads; 200. a body;
210. grinding a U-shaped ground surface; 211. a first ground surface;
212. a second ground surface; 201. a plane of symmetry;
h. a feed depth; d1, upper bias;
d2, lower bias; 13. a reference plane.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a display panel, an edging method thereof and a display device. The details will be described below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Please refer to fig. 1 and fig. 2. The present application provides a display panel. As shown in fig. 2, the display panel 10 includes a color filter substrate 12 made of glass, an array substrate 11 made of glass, and a liquid crystal layer (not shown) sandwiched between the color filter substrate 12 and the array substrate 11. Specifically, the color filter substrate 12 and the array substrate 11 are arranged in parallel and opposite to each other, and the side edge of the color filter substrate 12 is aligned with the side edge of the array substrate 11. Wherein, taking an extension plane of a half thickness position of the display panel 10 as a reference plane 13, the side edge of the display panel 10 has an arc-shaped section 14 which is convex and symmetrical relative to the reference plane 13.
In the embodiment of the present application, the arc-shaped section 14 is preferably any one of a paraboloid and a semi-ellipsoid formed by innumerable parabolas. The radian design and the parameter design of the arc-shaped section 14 can realize good overall strength of the glass of the display panel 10.
As shown in fig. 2, the arc-shaped cross section 14 includes a first smooth edge 15 and a second smooth edge 16 which are smoothly connected, and the first smooth edge 15 and the second smooth edge 16 are symmetrical with respect to the reference plane 13.
In this embodiment, the first smooth edge 15 is located on the side of the color filter substrate 12, and the second smooth edge 16 is located on the side of the array substrate 11. Equivalently, the first smooth edge 15 is connected to the color filter substrate 12, and the second smooth edge 16 is connected to the array substrate 11. Specifically, the joint of the first smooth edge 15 and the color filter substrate 12 and the joint of the second smooth edge 16 and the array substrate 11 may be tangent or not tangent, which has little influence on the glass strength, but the invention is not limited thereto. In addition, in this embodiment, in order to avoid that the arc-shaped cross section 14 is too wide to affect the ratio of the display area of the display panel 10, the surface of the color filter substrate 12 contacting the first smooth edge 15 is not tangent to the first smooth edge 15, and the surface of the array substrate 11 contacting the second smooth edge 16 is not tangent to the second smooth edge 16.
Preferably, the deviation of the plane of symmetry of the arc-shaped section 14 from the reference plane 13 in the direction perpendicular to the reference plane 13 ranges from-0.02 mm to 0.02 mm.
As shown in fig. 2, a symmetrical point C is located at an intersection of the first smooth edge 15 and the second smooth edge 16, a first intersection M is located at an intersection of the first smooth edge 15 and the color filter substrate 12, and a second intersection N is located at an intersection of the second smooth edge 16 and the array substrate 11, where a side of the arc-shaped cross section 14 may be an arc or a non-circular curve. In one embodiment, the arc-shaped cross section 14 is a non-circular curve, the radius of curvature of the arc-shaped cross section 14 at the symmetry point C is the minimum, and the radius of curvature of the arc-shaped cross section 14 at the first intersection point M is equal to the radius of curvature of the arc-shaped cross section 14 at the second intersection point N and is the maximum of the curvature of the arc-shaped cross section 14.
In other words, the radius of curvature of the first smooth side 15 gradually decreases as the first smooth side 15 extends from the first intersection point M toward the symmetry point C, and the radius of curvature of the second smooth side 16 gradually decreases as the second smooth side 16 extends from the second intersection point N toward the symmetry point C. In the embodiment of the present application, the shape design of the arc-shaped cross section 14 of the display panel 10 can effectively improve the overall strength of the glass of the display panel 10, and effectively reduce the risk of fragment.
In the embodiment of the present application, in order to prevent the risk of chipping during the processing of the arc-shaped cross section 14 of the display panel 10, and in order to improve the strength of the display panel 10 for performing multiple rounds of theoretical simulation and destructive strength tests, and in order to optimize the shape design parameters of the arc-shaped cross section 14, the present application further provides an edging method of the display panel, which adopts a grinding head or a grinding wheel structure, for example, to form the arc-shaped cross section 14 after edging the special-shaped end surface of the display panel 10 to be edged after cutting.
Referring to fig. 1, the side of the display panel 10 has a cut special-shaped end face 110, and specifically, the outer peripheral surfaces of the peripheral edges of the display panel 10 all have the cut special-shaped end face 110. The display panel 10 includes the color film substrate 12 and the array substrate 11 as schematically shown in fig. 2, and the side edges of the color film substrate 12 and the array substrate 11 are both required to be edge-ground to form the arc-shaped cross section 14 as schematically shown in fig. 2.
In addition, as shown in fig. 1, the display panel 10 is electrically connected to a circuit board 104 through a flip-chip film 103, and can specifically provide signals for the array substrate 11 of the display panel 10 for displaying.
Please refer to fig. 3 a. The edging method of the display panel is used for edging the special-shaped end face 110 of the display panel 10 to be edged after cutting, so that the special-shaped end face 110 is changed into the arc-shaped cross section 14. In an embodiment of the present application, the method for edging a display panel includes the following steps:
step S01: a display panel 10 to be edge-polished after cutting is provided. Wherein, the side edge of the display panel 10 has a cut special-shaped end face 110;
in this embodiment, as shown in fig. 1, the cut side edge of the display panel 10 to be edged has a cut special-shaped end surface 110, and the cut special-shaped end surface 110 is located at the edge of the side edge of the display panel 10 to be edged. Preferably, as shown in fig. 1, the cut special-shaped end surface 110 is located at an edge of the peripheral side edge of the display panel 10 to be edged.
Step S02: providing a grinding head 20 having a concave and symmetrical U-shaped grinding surface 210;
in this step, referring to fig. 3b, the grinding head 20 includes a main body 200, the main body 200 includes a symmetrical plane 201, a concave and symmetrical U-shaped grinding surface 210 is disposed on the main body 200, and the U-shaped grinding surface 210 is symmetrically disposed about the symmetrical plane 201. Preferably, the U-shaped grinding surface 210 is a diamond-like material.
In another embodiment, the grinding stones 20 are preferably grinding wheels. In an embodiment, the grinding head 20 may also be a tool with certain roughness, and the shape of the tool may be selected according to the shapes of different sections, and the grinding head 20 is preferably a cutter wheel. The grinding head 20 is abutted against the edge of the display panel 10 and moved relative to the display panel 10 so that the U-shaped grinding faces 210 grind the side edges of the display panel 10.
As shown in fig. 3b, in the present embodiment, the outer surface of the U-shaped grinding surface 210 is a concave curved surface, and the outer surface of the special-shaped end surface 110 is a convex surface, specifically, the grinding surface 210 includes a first grinding surface 211 and a second grinding surface 212 which are smoothly connected, the first grinding surface 211 and the second grinding surface 212 are symmetrical structural members, and the first grinding surface 211 and the second grinding surface 212 are symmetrical with respect to the symmetrical surface 201. Preferably, in the present embodiment, the U-shaped grinding surface 210 has an arc-shaped concave surface which is symmetrical with respect to the symmetry plane 201, that is, the first grinding surface 211 and the second grinding surface 212 of the U-shaped grinding surface 210 have arc-shaped concave surfaces which are symmetrical with respect to the symmetry plane 201.
Step S03: aligning the grinding head 20 with the side edge of the display panel 10, wherein the U-shaped grinding surface 210 is opposite to the special-shaped end surface 110;
as shown in fig. 4a, the U-shaped grinding surface 210 is disposed opposite to the irregular end surface 110, and the grinding heads 20 are aligned with the side edge of the display panel 10, i.e., the irregular end surface 110.
In this step, as shown in fig. 4a, with the extended plane of the half thickness position of the display panel 10 as the reference plane 13, the symmetrical plane 201 of the U-shaped grinding face 210 of the grinding head 20 is aligned with the reference plane 13. The reference surface 13 serves as an alignment reference for feeding the grinding surface 210 to the irregular end surface 110 in the first direction a. Specifically, the reference surface 13 is a plane located in the extending direction of the display panel 10. Since the thicknesses of the color filter substrate 12 and the array substrate 11 of the display panel 10 are not necessarily equal to each other, the reference surface 13 is not necessarily exactly divided between the color filter substrate 12 and the array substrate 11. According to the experimental result, the reference plane 13 is preferably an extended plane of a half thickness position of the display panel 10. That is, the reference plane 13 is a central plane that equally divides the display panel 10, and the display panel 10 can have an optimal strength. If the thicknesses of the color filter substrate 12 and the array substrate 11 are equal, the reference surface 13 is located at a position of the liquid crystal layer between the color filter substrate 12 and the array substrate 11.
The first direction a is parallel to the display panel 10 and the reference surface 13, and the first direction a is a feeding direction of the grinding head 20 toward the display panel 10. Specifically, during grinding, the grinding faces 210 are forced in the first direction a toward the irregular end face 110 so that the grinding stones 20 are pressed against the irregular end face 110.
In this step, as shown in fig. 4b and 4c, which are schematic diagrams after the grinding head 20 is fed to the irregular end surface 110, in actual operation, the symmetric plane 201 of the U-shaped grinding surface 210 is aligned with the reference plane 13, and the symmetric plane of the U-shaped grinding surface 210 and the reference plane 13 have a deviation of alignment accuracy in a direction perpendicular to the reference plane 13, but the deviation of alignment accuracy needs to be controlled so as to be within an allowable range so as not to affect the strength of the display panel 10.
In this step, preferably, the deviation range between the symmetric plane 201 of the U-shaped grinding surface 210 and the reference plane 13 in the direction perpendicular to the reference plane 13 is-0.02 mm to 0.02mm, which can achieve the best strength of the display panel 10 and avoid the display panel from penetrating cracks or fragments. Referring to fig. 4a, when the symmetry plane 201 of the U-shaped grinding surface 210 of the grinding head 20 is normally aligned with respect to the reference plane 13, no deviation of alignment accuracy occurs between the symmetry plane 201 of the U-shaped grinding surface 210 and the reference plane 13 in a direction perpendicular to the reference plane 13. The first grinding surface 211 and the second grinding surface 212 of the U-shaped grinding surface 210 are symmetrical with respect to the reference plane 13.
As shown in fig. 4b, the symmetrical plane 201 of the U-shaped grinding surface 210 of the grinding head 20 is offset upward relative to the reference plane 13 in a direction perpendicular to the reference plane 13, and the deviation of the alignment accuracy of the U-shaped grinding surface 210 relative to the reference plane 13 is allowed to be in a range of 0 to 0.02mm, which is recorded as an upper deviation d1 being 0 to 0.02 mm.
And as shown in fig. 4c, the symmetric plane 201 of the U-shaped grinding surface 210 is offset downward with respect to the reference plane 13 in a direction perpendicular to the reference plane 13, and the allowable range of the alignment accuracy deviation of the U-shaped grinding surface 210 of the grinding stone 20 with respect to the reference plane 13 is-0.02 mm to 0, and is recorded as d2 being-0.02 mm to 0.
Step S04: the grinding head 20 is used for grinding the edge of the special-shaped end face 110. Wherein the grinding head 20 is moved relative to the display panel 10 along a direction parallel to the side edge of the display panel 10 and the irregular end face 110 is edge-ground.
In this step, as shown in fig. 4a, 4b and 4c, the side edge of the display panel 10, i.e., the shaped end surface 110, has an arc-shaped cross section which is convex and symmetrical with respect to the reference plane 13, and the feeding depth h of the U-shaped grinding surface 210 of the grinding head 20 with respect to the display panel 10 in the direction parallel to the reference plane 13 and perpendicular to the side edge is 150 μm, i.e., the grinding length of the shaped end surface 110 in the direction parallel to the reference plane 13 and perpendicular to the side edge is less than 150 μm, i.e., the width of the orthographic projection of the side edge of the display panel 10 on the reference plane 13 after grinding is 150 um.
In this step, it should be noted that, in the process of grinding the side edge of the display panel 10 by using the first grinding surface 211 or the second grinding surface 212, at any grinding position, the arc curvature of the first grinding surface 211 or the second grinding surface 212 is greater than the arc curvature of the side edge of the display panel 10, so as to ensure that the U-shaped grinding surface 210 does not damage the side edge of the display panel 10 during the feeding of the grinding head 20 to the side edge of the display panel 10. In addition, in the present embodiment, when the symmetry plane 201 of the U-shaped grinding surface 210 deviates from the reference plane 13 in the direction perpendicular to the reference plane 13 within a range of-0.02 mm to 0.02mm, the U-shaped grinding surface 210 is dimensioned such that the side edge of the display panel 10 is not damaged during grinding when the U-shaped grinding surface 210 is fed toward the side edge of the display panel 10. And grinding the side edge of the display panel 10 by using the U-shaped grinding surface 210 to form the arc-shaped cross section 14, so that the arc-shaped cross section 14 of the display panel 10 is in a smooth state, and the overall strength of the glass of the display panel 10 is strong, and the display panel is not easy to cause penetrating cracks or fragments.
In addition, it should be noted that, in the process of enabling the grinding head 20 to grind the irregular end surface 110, the cooling liquid may be selected to perform liquid cooling on the contact surface between the U-shaped grinding surface 210 of the grinding head 20 and the irregular end surface 110, so as to avoid deformation of the display panel 10 caused by heat generated by friction between the U-shaped grinding surface 210 and the display surface 10, and to flush away grinding debris of the U-shaped grinding surface 210 on the display panel 10, so as to clean the area of the irregular end surface 110.
In this step, after the grinding head 20 finishes grinding the irregular end surface 110, the irregular end surface 110 may be ground into the arc-shaped cross section 14 illustrated in fig. 2.
The application provides a display panel's edging method, through right display panel 10 edging rather than the mode of cutting stripping reduces the glass substrate cutting one the production of the easy penetrability crack that appears behind display panel 10 improves the stability of display panel 10's intensity is realized utilizing bistrique 20 is right display panel 10 special-shaped terminal surface 110 prevents the broken piece risk in-process of edging.
The present application also provides a display device comprising the display panel 10 as described above. The display device comprises electronic equipment such as a mobile phone.
The embodiment of the application provides display panel's edging method display panel reaches display device, it is right through the bistrique 20 that has the U-shaped grinding face of indent and symmetry dysmorphism terminal surface 110 carries out the edging, wherein bistrique 20 the symmetry 201 of U-shaped grinding face 210 aligns reference surface 13 and right dysmorphism terminal surface 110 carries out the edging. The display panel 10 provided in the embodiment of the present application includes a color filter substrate 12 made of a glass material and an array substrate 11 made of a glass material, wherein an extension plane of a half thickness position of the display panel 10 is used as a reference plane 13, and a side edge of the display panel 10 has an arc-shaped cross section 14 protruding outward and symmetrical with respect to the reference plane 13. In the embodiment of the present application, the overall strength of the display panel 10 can be effectively improved by optimizing the shape design and parameter design of the arc-shaped cross section 14 on the side of the display panel 10. In the process of processing the arc-shaped cross section 14, the grinding head 20 moves relative to the display panel 10 along a direction parallel to the side edge of the display panel 10 and performs edge grinding on the irregular end surface 110, so that the strength of the color film substrate 12 made of glass and the array substrate 11 made of glass, which are included in the display panel 10, can be effectively improved, and the display panel 10 is greatly prevented from being perforated and cracked.
The display panel, the edging method thereof, and the display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments above is only used to help understand the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An edging method of a display panel, comprising the steps of:
providing a display panel which is cut and is to be edged, wherein the side edge of the display panel is provided with a cut special-shaped end face;
providing a grinding head with concave and symmetrical U-shaped grinding surfaces;
aligning the grinding head with the side edge of the display panel, wherein the U-shaped grinding surface is opposite to the special-shaped end surface;
and enabling the grinding head to edge the special-shaped end face in a side-walking mode, wherein the grinding head moves relative to the display panel along the direction parallel to the side edge of the display panel and edges the special-shaped end face in a side-walking mode.
2. An edging method according to claim 1, wherein in the step of aligning said grinding head with said side edge of said display panel, a symmetrical plane of said U-shaped grinding face of said grinding head is aligned with a reference plane with respect to an extended plane of a half thickness position of said display panel.
3. An edging method according to claim 2, wherein in the step of edging the irregularly-shaped end face side by the grinding head, the side edge of the display panel has an arc-shaped cross section that is convex and symmetrical with respect to the reference plane.
4. An edging method according to claim 3, wherein in the step of edging the irregularly-shaped end face side by the grinding head, the width of the orthographic projection of the side edge of the display panel on the reference plane is 150 μm.
5. The display panel is characterized by comprising a color film substrate made of glass, an array substrate made of glass and a liquid crystal layer clamped between the color film substrate and the array substrate, wherein an extension plane at a half thickness position of the display panel is taken as a reference plane, and the side edge of the display panel is provided with an arc-shaped cross section which protrudes outwards and is symmetrical relative to the reference plane.
6. The display panel according to claim 5, wherein the arc-shaped cross section is any one of a paraboloid and a half ellipsoid formed by innumerable parabolas.
7. The display panel of claim 6, wherein the arc-shaped cross section comprises a first smooth edge and a second smooth edge that are smoothly connected, and the first smooth edge and the second smooth edge are symmetrical about the reference plane.
8. The display panel according to claim 7, wherein the first smooth edge is located on a side of the color filter substrate, and the second smooth edge is located on a side of the array substrate.
9. The display panel of claim 8, wherein the surface of the color filter substrate that is connected to the first smooth edge is not tangent to the first smooth edge, and the surface of the array substrate that is connected to the second smooth edge is not tangent to the second smooth edge.
10. A display device characterized by comprising the display panel according to any one of claims 5 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445914.9A CN113199338A (en) | 2021-04-25 | 2021-04-25 | Display panel, edging method thereof and display device |
| PCT/CN2021/098374 WO2022227227A1 (en) | 2021-04-25 | 2021-06-04 | Display panel and edge grinding method therefor, and display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110445914.9A CN113199338A (en) | 2021-04-25 | 2021-04-25 | Display panel, edging method thereof and display device |
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| WO (1) | WO2022227227A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023025072A1 (en) * | 2021-08-27 | 2023-03-02 | 京东方科技集团股份有限公司 | Curved liquid crystal display panel and curved display apparatus |
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| JP2000190188A (en) * | 1998-12-28 | 2000-07-11 | Matsushita Electric Ind Co Ltd | Manufacture of plasma display panel |
| CN102947238A (en) * | 2010-06-21 | 2013-02-27 | 旭硝子株式会社 | Glass substrate and method for manufacturing glass substrate |
| CN103534089A (en) * | 2011-05-13 | 2014-01-22 | 日本电气硝子株式会社 | Laminate, method for cutting laminate, method for processing laminate, and device and method for cutting brittle plate-like object |
| CN107632444A (en) * | 2017-11-02 | 2018-01-26 | 上海天马微电子有限公司 | Special-shaped display panel and its manufacture method and display device |
| CN108673356A (en) * | 2018-04-19 | 2018-10-19 | 武汉华星光电半导体显示技术有限公司 | A kind of wheel structure |
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| JP2003200336A (en) * | 2001-12-27 | 2003-07-15 | Optrex Corp | Chamfering method for liquid crystal display panel |
| JP5521582B2 (en) * | 2010-01-28 | 2014-06-18 | 信越半導体株式会社 | Manufacturing method of bonded wafer |
| KR101304252B1 (en) * | 2011-09-26 | 2013-09-05 | (주)미래컴퍼니 | Method and device for grinding panel of irregular shape using groove wheel |
| KR102483923B1 (en) * | 2017-12-27 | 2023-01-02 | 삼성전자 주식회사 | semiconductor wafer having bevel portion |
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2021
- 2021-04-25 CN CN202110445914.9A patent/CN113199338A/en active Pending
- 2021-06-04 WO PCT/CN2021/098374 patent/WO2022227227A1/en active Application Filing
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| JP2000190188A (en) * | 1998-12-28 | 2000-07-11 | Matsushita Electric Ind Co Ltd | Manufacture of plasma display panel |
| CN102947238A (en) * | 2010-06-21 | 2013-02-27 | 旭硝子株式会社 | Glass substrate and method for manufacturing glass substrate |
| CN103534089A (en) * | 2011-05-13 | 2014-01-22 | 日本电气硝子株式会社 | Laminate, method for cutting laminate, method for processing laminate, and device and method for cutting brittle plate-like object |
| CN107632444A (en) * | 2017-11-02 | 2018-01-26 | 上海天马微电子有限公司 | Special-shaped display panel and its manufacture method and display device |
| CN108673356A (en) * | 2018-04-19 | 2018-10-19 | 武汉华星光电半导体显示技术有限公司 | A kind of wheel structure |
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| WO2023025072A1 (en) * | 2021-08-27 | 2023-03-02 | 京东方科技集团股份有限公司 | Curved liquid crystal display panel and curved display apparatus |
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| WO2022227227A1 (en) | 2022-11-03 |
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