CN109633988B - Edge transition surface reinforced liquid crystal display screen and manufacturing method thereof - Google Patents
Edge transition surface reinforced liquid crystal display screen and manufacturing method thereof Download PDFInfo
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- CN109633988B CN109633988B CN201811409242.0A CN201811409242A CN109633988B CN 109633988 B CN109633988 B CN 109633988B CN 201811409242 A CN201811409242 A CN 201811409242A CN 109633988 B CN109633988 B CN 109633988B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 40
- 230000007704 transition Effects 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000011521 glass Substances 0.000 claims abstract description 149
- 239000000758 substrate Substances 0.000 claims abstract description 113
- 238000011049 filling Methods 0.000 claims abstract description 38
- 239000000243 solution Substances 0.000 claims abstract description 31
- 238000005342 ion exchange Methods 0.000 claims abstract description 22
- 238000003426 chemical strengthening reaction Methods 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 15
- 239000000565 sealant Substances 0.000 claims abstract description 14
- 239000003929 acidic solution Substances 0.000 claims abstract description 13
- 230000007547 defect Effects 0.000 claims abstract description 8
- 230000003628 erosive effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 26
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 9
- 238000010306 acid treatment Methods 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001259 photo etching Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 6
- 239000012945 sealing adhesive Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 51
- 230000002829 reductive effect Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012939 laminating adhesive Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- 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
Abstract
The invention provides an edge transition surface reinforced liquid crystal display screen, which comprises an upper glass substrate, an upper conducting layer, a liquid crystal layer, a lower conducting layer and a lower glass substrate which are sequentially arranged, wherein the upper glass substrate and the lower glass substrate are fixedly connected through sealing adhesive; after the sealant is fixed, gaps are reserved at the left and right edges of the upper glass substrate and the lower glass substrate; filling gaps at the left and right edges of the upper glass substrate and the lower glass substrate into an integral plane made of glass material by using glass powder, wherein the integral plane is respectively used as a left side surface and a right side surface; then, respectively eroding the left side surface and the right side surface through a first acidic solution to remove surface defects of the left side surface and the right side surface; and then the left side surface and the right side surface are respectively subjected to chemical strengthening by using ion exchange solution to form a chemical strengthening layer so as to prevent microcracks from diffusing into the left side surface and the right side surface, thereby improving the bending resistance and the impact resistance of the left side surface and the right side surface.
Description
Technical Field
The invention relates to the technical field of liquid crystal display screens, in particular to a liquid crystal display screen with an edge transition surface reinforced.
Background
The existing liquid crystal display screen mostly adopts a glass substrate, and glass has high brittleness, low flexural strength and low hardness, and is often required to be reinforced in the manufacturing process. In the case of strengthening glass by acid treatment, a corrosive solution mainly composed of hydrofluoric acid is usually used, but as the reaction proceeds, the concentration of hydrofluoric acid changes, and it is difficult to control the degree of corrosion of glass, and if the glass edge is excessively corroded, the strength is rather lowered. In another method, ion exchange is performed on the surface of the glass to generate a chemical strengthening layer, and the chemical strengthening layer is derived from a corresponding compressive stress distribution layer, so that the compressive stress layer can restrict the crack growth of the surface layer of the glass to improve the breaking strength of the glass. In the general chemical strengthening process, the whole glass substrate to be strengthened is immersed in high Wen Xiaosuan potassium molten salt to perform ion exchange, however, the chemical strengthening method is difficult to locally strengthen the glass substrate. In addition, although the strength of the reinforced glass obtained by the ion exchange method is very high, the surface compressive stress layer generated by the ion exchange method is relatively thin, the surface micro-defects are very sensitive, and small surface scratches are enough to reduce the strength of the glass. Once broken, the broken pieces have sharp corners, and have a certain danger to human bodies.
As shown in fig. 1, in order to increase the strength of the conventional liquid crystal display panel, the conventional liquid crystal display panel is realized by using high-strength glass as a substrate. When the liquid crystal display screen is packaged and molded, a gap exists between the upper glass substrate and the lower glass substrate, and the upper glass substrate and the lower glass substrate are not integrated, so that the bending strength and the impact strength are often poor, and the breakage is easy to cause.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the liquid crystal display with the reinforced edge transition surface and the manufacturing method thereof, and the strength of the edge transition surface of the liquid crystal display is enhanced by acid treatment and an ion exchange method, so that microcracks are prevented from diffusing inwards.
The invention provides an edge transition surface reinforced liquid crystal display screen, which comprises an upper glass substrate, an upper conducting layer, a liquid crystal layer, a lower conducting layer and a lower glass substrate which are sequentially arranged, wherein the upper glass substrate and the lower glass substrate are fixedly connected through sealing adhesive; after the sealant is fixed, gaps are reserved at the left and right edges of the upper glass substrate and the lower glass substrate, the gaps are filled with glass powder to form left filling parts and right filling parts respectively, and the left end face of the upper glass substrate, the left filling parts and the left end face of the lower glass substrate are coplanar to form left side faces; the right end face of the upper layer glass substrate, the right filling part and the right end face of the lower layer glass substrate are coplanar to form a right side face; the surfaces of the left side surface and the right side surface form a chemical strengthening layer by an ion exchange method.
Further, 4 side edges on the upper surfaces of the left and right vertex angles of the upper glass substrate are formed into arc edges through acid treatment
Further, the mass fraction of the glass powder for the gaps is 1.5-2.0% of the modified polyimide adhesive.
Furthermore, an anti-splashing film is arranged on the outer side of the chemical strengthening layer.
Further, the sealant is an organosilicon gel.
A manufacturing method of an edge transition surface reinforced liquid crystal display screen comprises the following steps:
s1, an upper conductive layer is arranged on one side of an upper glass substrate, and a lower conductive layer is arranged on one side of a lower glass substrate;
s2, coating a layer of photosensitive adhesive on the upper conductive layer and the lower conductive layer respectively by using a photoetching process;
s3, arranging a liquid crystal mixture between the upper conductive layer and the lower conductive layer to form a liquid crystal layer;
s4, electrically adhering and fixing the upper glass substrate and the lower glass substrate by using sealant, wherein gaps are reserved at the left edge and the right edge of the upper glass substrate and the lower glass substrate;
s5, filling gaps at the left edge and the right edge of the upper glass substrate and the lower glass substrate with glass powder to form a left filling part and a right filling part, wherein the left end face of the upper glass substrate, the left filling part and the left end face of the lower glass substrate are coplanar to form a left side face, and the right end face of the upper glass substrate, the right filling part and the right end face of the lower glass substrate are coplanar to form a right side face;
the mass fraction of the glass powder for the gaps is 1.5-2.0% of modified polyimide adhesive;
s6, respectively eroding the left side surface and the right side surface by using a first acidic solution to remove surface defects of the left side surface and the right side surface;
s7, chemically strengthening the left side surface and the right side surface respectively by using an ion exchange solution to form a chemically strengthened layer.
7. The method for manufacturing the liquid crystal display screen with the reinforced edge transition surface according to claim 6, wherein the method comprises the following steps: the method also comprises the following steps:
and S8, smearing second acid solution on 4 side edges of the upper surface of the upper glass substrate, and corroding the 4 side edges by the second acid solution to form arc edges.
Further, the first acidic solution is 20% hydrofluoric acid.
Further, the ion exchange solution is: KNO (KNO) 3 Solution and K 2 SiO 3 、AlO 3 Is a mixed solution of (a) and (b).
Further, the second acidic solution was a solution prepared by mixing 40% hydrofluoric acid and 98% sulfuric acid.
According to the technical scheme, the beneficial effects of the invention are as follows:
1. the invention provides an edge transition surface reinforced liquid crystal display screen, which comprises an upper glass substrate, an upper conducting layer, a liquid crystal layer, a lower conducting layer and a lower glass substrate which are sequentially arranged, wherein the upper glass substrate and the lower glass substrate are fixedly connected through sealing adhesive; after the sealant is fixed, gaps are reserved at the left and right edges of the upper glass substrate and the lower glass substrate; filling the gaps with glass powder to form left filling parts and right filling parts respectively, wherein the left end face of the upper glass substrate, the left filling parts and the left end face of the lower glass substrate are coplanar to form left side faces; the right end face of the upper layer glass substrate, the right filling part and the right end face of the lower layer glass substrate are coplanar to form a right side face; the surfaces of the left side surface and the right side surface form a chemical strengthening layer through an ion exchange method so as to prevent microcracks from diffusing into the left side surface and the right side surface, thereby improving the bending resistance and the impact resistance of the left side surface and the right side surface.
2. The invention provides a manufacturing method of an edge transition surface reinforced liquid crystal display screen, which comprises the steps of filling gaps at the left and right edges of an upper glass substrate and a lower glass substrate into an integral plane made of glass material by using glass powder, wherein the left side surface and the right side surface are respectively; then, respectively eroding the left side surface and the right side surface through a first acidic solution to remove surface defects of the left side surface and the right side surface; and then the left side surface and the right side surface are respectively subjected to chemical strengthening by using ion exchange solution to form a chemical strengthening layer so as to prevent microcracks from diffusing into the left side surface and the right side surface, thereby improving the bending resistance and the impact resistance of the left side surface and the right side surface.
3. The invention provides a manufacturing method of an edge transition surface reinforced liquid crystal display screen, which further comprises the step of carrying out acid treatment on 4 side edges on the upper surface of an upper layer glass substrate through a second acid solution to form arc edges, so that the crack tips of the side edges are passivated, and the stress concentration is reduced, thereby enhancing the strength of the side edges.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is a sectional view of a conventional liquid crystal display panel in the related art.
FIG. 2 is a cross-sectional view of an edge transition plane enhanced LCD according to the present invention.
Fig. 3 is a flow chart of a method for manufacturing an edge transition surface reinforced liquid crystal display screen according to the present invention.
Reference numerals:
1-upper glass substrate, 2-upper conductive layer, 3-liquid crystal layer, 4-lower conductive layer, 5-lower glass substrate, 6-sealant, 7-left filling part, 8-right filling part, 9-chemical strengthening layer, 10-arc edge, 11-splash-proof film, 12-gap, 13-left side surface and 14-right side surface.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
Referring to fig. 2, an edge transition surface reinforced lcd screen includes an upper glass substrate 1, an upper conductive layer 2, a liquid crystal layer 3, a lower conductive layer 4 and a lower glass substrate 5 sequentially disposed, wherein the upper glass substrate 1 and the lower glass substrate 5 are adhered and fixed by a sealant 6; after the sealant 6 is fixed, gaps 12 are reserved at the left and right edges of the upper glass substrate 1 and the lower glass substrate 5; the gap 12 is filled with glass powder to form a left filling part 7 and a right filling part 8 respectively, and the left end face of the upper glass substrate 1, the left filling part 7 and the left end face of the lower glass substrate 5 are coplanar to form a left side face 13; the right end face of the upper glass substrate 1, the right filling part 8 and the right end face of the lower glass substrate 5 are coplanar to form a right side face 14; the surfaces of the left and right sides are formed with a chemical strengthening layer 9 by ion exchange.
4 side edges on the upper surfaces of the top angles at the left end and the right end of the upper glass substrate 1 are formed into arc edges 10 through acid treatment.
The chemical strengthening layer outside is provided with prevents splashing the membrane, and four sides of box body have strengthened intensity through ion exchange, but if in case broken, its piece has sharp closed angle, sets up prevents splashing the membrane in the chemical strengthening layer outside, and even broken, liquid crystal display also can not hurt the people.
The sealant is organic silicon gel, and the upper glass substrate and the lower glass substrate are adhered and fixed. The organic silicon gel is an optical laminating adhesive, and the macromolecular chain segment of the optical laminating adhesive has strong loosening and moving capabilities, can generate strong internal friction force to convert mechanical energy into heat energy, and has a damping effect. When the external force acts, the buffer energy can be isolated.
Referring to fig. 3, in a method for manufacturing an edge transition surface reinforced lcd, glass powder is used to fill gaps 12 between left and right edges of an upper glass substrate 1 and a lower glass substrate 5; then etching to remove the crack layers of the left side 13 and the right side 14 by a first acid treatment to remove the defects of the glass surface; and the left side surface 13 and the right side surface 14 are formed into the chemical strengthening layer 9 by an ion exchange method so as to prevent microcracks from diffusing into the left side surface and the right side surface, thereby improving the bending resistance and the impact resistance of the left side surface and the right side surface. And finally, carrying out second acid treatment on 4 side edges on the upper surface of the upper glass substrate to passivate the crack tips of the side edge glass, reduce stress concentration and further enhance the strength of the edge transition surface.
Specifically, a manufacturing method of an edge transition surface reinforced liquid crystal display screen comprises the following steps:
the first step, an upper conductive layer 2 is arranged on one side of an upper glass substrate 1, and a lower conductive layer 4 is arranged on one side of a lower glass substrate 5;
secondly, coating a layer of photosensitive resist on the upper conductive layer 2 and the lower conductive layer 4 respectively by using a photoetching process;
a third step of disposing a liquid crystal mixture between the upper conductive layer 2 and the lower conductive layer 4 to form a liquid crystal layer 3;
fourthly, adhering and fixing the upper glass substrate 1 and the lower glass substrate 5 by using sealant 6, wherein a gap 12 of 1mm is reserved at the left edge and the right edge of the upper glass substrate 1 and the lower glass substrate 5;
fifthly, filling gaps 12 at the left and right edges of the upper glass substrate 1 and the lower glass substrate 5 with glass powder to form a left filling part 7 and a right filling part 8, wherein the widths of the left filling part 7 and the right filling part 8 are 1mm and are coplanar with the end surfaces of the upper glass substrate and the lower glass substrate, the left end surface of the upper glass substrate 1, the left filling part 7 and the left end surface of the lower glass substrate 5 form a left side surface 13, and the right end surface of the upper glass substrate 1, the right filling part 8 and the right end surface of the lower glass substrate 5 form a right side surface 14; the upper and lower conductive layers are connected with the electrode from the front end face and the rear end face of the upper glass substrate.
The glass powder comprises the following components: 1.5 to 2.0 percent of modified polyimide adhesive;
a sixth step of etching the left side 13 and the right side 14 with a first acidic solution to remove the left side and right side surface defects, respectively;
the method comprises the following steps: respectively soaking the left side surface 13 and the right side surface 14 into a first acidic solution with the temperature of 20 ℃ for 5 minutes, wherein the first acidic solution is 20% hydrofluoric acid solution;
a seventh step of chemically strengthening the left side surface 13 and the right side surface 14 by using an ion exchange solution to form a chemical strengthening layer 9 so as to prevent microcracks from diffusing into the left and right side surfaces, thereby improving the bending resistance and the impact resistance of the left and right side surfaces;
the ion exchange solution is: KNO (KNO) 3 Solution and K 2 SiO 3 、AlO 3 KNO of mixed solution of (2) 3 The solution is enhanced Na 2 O-CaO-SiO 2 The glass is ideal molten salt, and the impurity ion content in the molten salt is gradually increased along with the extension of the exchange time in the ion exchange process, so that the stress enhancement effect is seriously reduced. The harmful impurities mainly comprise Na + 、NO 2 - 、Ca 2+ 、Sr 2+ 、Ba 2+ 、Pb 2+ Etc., and Ca 2+ 、Sr 2+ 、Ba 2+ The plasma impurity ions are gathered on the glass surfaces of the left side surface and the right side surface, and the glass is used for K + The diffusion of (2) produces a blocking effect, and divalent ions diffuse into the glass, and K is also absorbed in the glass + Diffusion produces an inhibitory effect. The blocking effect far exceeds the inhibition effect and is therefore found in KNO 3 K is added into the solution 2 SiO 3 、AlO 3 Substances such that K + Is easy to diffuse into the glass, and prolongs the service life of the fused salt.
The method comprises the following steps: the ion exchange solution is heated to 350 ℃, the display screen is clamped by using a clamp, and the left side surface and the right side surface are immersed into the ion exchange solution in sequence, wherein the immersion depth is 0.5mm.
And eighth step, 4 side edges on the upper surface of the upper glass substrate 1 are subjected to acid treatment to form arc edges 10.
The method comprises the following steps: and (3) smearing second acid solution on 4 side edges on the upper surface of the upper glass substrate, and corroding the 4 side edges by the second acid solution to form arc edges, so that the crack tips of the side edges glass are passivated, and the stress concentration is reduced, thereby enhancing the strength of the side edges. Because only 4 side edges on the upper surface of the upper glass substrate are required to form arc edges, the contact area between the used second acid solution and the glass edge transition surface is small in a smearing mode, and the possibility of excessive acid corrosion is reduced. The second acidic solution is: a solution prepared by mixing 20% hydrofluoric acid and 98% sulfuric acid.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. The liquid crystal display screen with the reinforced edge transition surface is characterized by comprising an upper glass substrate (1), an upper conductive layer (2), a liquid crystal layer (3), a lower conductive layer (4) and a lower glass substrate (5) which are sequentially arranged, wherein the upper glass substrate (1) and the lower glass substrate (5) are adhered and fixed through a sealant (6); after the sealant (6) is fixed, gaps (12) are reserved at the left and right edges of the upper glass substrate (1) and the lower glass substrate (5), the gaps (12) are filled with glass powder to form left filling parts (7) and right filling parts (8) respectively, and the left end face of the upper glass substrate (1), the left filling parts (7) and the left end face of the lower glass substrate (5) are coplanar to form left side faces (13); the right end face of the upper glass substrate (1), the right filling part (8) and the right end face of the lower glass substrate (5) are coplanar to form a right side face (14);
etching the left side surface (13) and the right side surface (14) by using a first acidic solution to remove surface defects of the left side surface and the right side surface; then, respectively carrying out chemical strengthening on the left side surface (13) and the right side surface (14) by using an ion exchange solution to form a chemical strengthening layer (9);
4 side edges on the upper surfaces of the top angles at the left end and the right end of the upper glass substrate (1) are subjected to acid treatment to form arc edges (10);
the mass fraction of the glass powder for the gaps is 1.5-2.0% of the modified polyimide adhesive.
2. The edge transition plane reinforced liquid crystal display according to claim 1, wherein an anti-splash film (11) is provided outside the chemical strengthening layer (9).
3. The edge transition surface reinforced liquid crystal display according to claim 1, wherein the sealant (6) is a silicone gel.
4. The manufacturing method of the liquid crystal display screen with the reinforced edge transition surface is characterized by comprising the following steps of:
s1, an upper conductive layer (2) is arranged on one side of an upper glass substrate (1), and a lower conductive layer (4) is arranged on one side of a lower glass substrate (5);
s2, coating a layer of photosensitive resist on the upper conductive layer (2) and the lower conductive layer (4) respectively by using a photoetching process;
s3, arranging a liquid crystal mixture between the upper conductive layer (2) and the lower conductive layer (4) to form a liquid crystal layer (3);
s4, adhering and fixing the upper glass substrate (1) and the lower glass substrate (5) by using a sealant (6), wherein gaps (12) are reserved at the left edge and the right edge of the upper glass substrate and the lower glass substrate;
s5, filling gaps (12) at the left and right edges of the upper glass substrate (1) and the lower glass substrate (5) with glass powder to form a left filling part (7) and a right filling part (8), wherein the left end face of the upper glass substrate (1), the left filling part (7) and the left end face of the lower glass substrate (5) are coplanar to form a left side face (13), and the right end face of the upper glass substrate (1), the right filling part (8) and the right end face of the lower glass substrate (5) are coplanar to form a right side face (14);
the gap (12) is a modified polyimide adhesive with the mass fraction of glass powder of 1.5-2.0%;
s6, respectively eroding the left side surface (13) and the right side surface (14) by using a first acidic solution to remove surface defects of the left side surface and the right side surface;
s7, chemically strengthening the left side surface (13) and the right side surface (14) respectively by using an ion exchange solution to form a chemical strengthening layer (9);
and S8, smearing second acid solution on 4 side edges of the upper surface of the upper glass substrate (1), and corroding the 4 side edges by the second acid solution to form arc edges (10).
5. The method for manufacturing the liquid crystal display screen with the reinforced edge transition surface according to claim 4, wherein the method comprises the following steps: the first acidic solution is 20% hydrofluoric acid.
6. The method for manufacturing the liquid crystal display screen with the reinforced edge transition surface according to claim 4, wherein the method comprises the following steps: the ion exchange solution is: KNO (KNO) 3 Solution and K 2 SiO 3、 AlO 3 Is a mixed solution of (a) and (b).
7. The method for manufacturing the liquid crystal display screen with the reinforced edge transition surface according to claim 4, wherein the method comprises the following steps: the second acidic solution is a solution prepared by mixing 40% hydrofluoric acid and 98% sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409242.0A CN109633988B (en) | 2018-11-23 | 2018-11-23 | Edge transition surface reinforced liquid crystal display screen and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409242.0A CN109633988B (en) | 2018-11-23 | 2018-11-23 | Edge transition surface reinforced liquid crystal display screen and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109633988A CN109633988A (en) | 2019-04-16 |
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