A flexible glass chemically thinned liner and its use method

Abstract

The present invention discloses a flexible glass chemical thinning lining plate and a method for using the same, comprising four completely identical "L"-shaped lining plate bodies, wherein the right-angle ends of the lining plate bodies are connected via adjustable limit components to form a limit fit, and the lining plate bodies and the limit components cooperate to form a "U"-shaped structure that is concentric and coaxial with the flexible glass original sheet, and glass edge fixing grooves are concentrically and coaxially provided in the middle positions of the inner corners of the lining plate bodies, and the glass edge fixing grooves correspond one to one with the four corners of the flexible glass original sheet, and the limit components are parallel to one side of the corresponding flexible glass original sheet, and the corresponding corners of the lining plate bodies and the flexible glass original sheet form an angle wrapping structure through the glass edge fixing grooves, and the flexible glass original sheet is clamped and fixed in the "U"-shaped structure, and only one lining plate can meet the chemical thinning processing scenarios of flexible glasses of various sizes and specifications, and has strong versatility, and since the middle of the annular structure is hollowed out, double-sided thinning can be performed, which can greatly improve the thinning efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of flexible ultra-thin electronic glass production, in particular to a flexible glass chemically thinned liner and a use method thereof. Background Art

[0002] In recent years, with the advancement of display device application technology, the flexible screen material of foldable mobile phones has changed from polyimide material to UTG (flexible ultra-thin electronic glass) material. UTG is generally prepared by chemical thinning of electronic glass sheets with a certain thickness, usually with a thickness of 20-40 microns. However, the current development of chemical thinning technology is not perfect. The rigid support liner used for chemical thinning of existing flexible glass has insufficient flatness, low processing yield, poor adjustability, and a liner of one size can only be used for the preparation of flexible glass of a single size specification, which is not universal. At the same time, the existing liner can only be thinned on one side, with low thinning efficiency and large waste area of ​​the glass edge, which seriously affects the application and development of flexible electronic glass. In addition, during the double-sided thinning process of existing flexible glass, the stability of the four corners and the surrounding area is poor, and there is usually a lack of corner wrapping structure to fix the flexible glass, which makes the glass easy to break. Summary of the invention

[0003] The present invention provides a flexible glass chemical thinning liner and a method for using the same, aiming to solve the problems of low processing yield, poor adjustability and non-universality of the liner used in the existing chemical thinning. At the same time, the existing liner can only be thinned on one side, with low thinning efficiency and easy to cause glass damage.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A flexible glass chemical thinning lining plate comprises four completely identical "L"-shaped lining plate bodies, the right-angle ends of the lining plate bodies are connected by adjustable limit assemblies to form a limit fit, and the lining plate bodies and the limit assemblies cooperate to form a "U"-shaped structure that is concentric and coaxial with the flexible glass original sheet, glass edge fixing grooves are concentrically and coaxially provided in the middle positions of the inner corners of the lining plate bodies, the glass edge fixing grooves correspond one to one with the four corners of the flexible glass original sheet, the limit assemblies are parallel to one side of the corresponding flexible glass original sheet, the corresponding corners of the lining plate bodies and the flexible glass original sheet form an angle wrapping structure through the glass edge fixing grooves, and the flexible glass original sheet is clamped and fixed in the "U"-shaped structure.

[0005] Preferably, the glass edge fixing grooves cooperate to form a "U"-shaped structure, and the corners of the flexible glass original sheet are all embedded in the corresponding glass edge fixing grooves, and the corners of the flexible glass original sheet are clamped with the corresponding glass edge fixing grooves.

[0006] More preferably, the liner body and the limiting assembly are both resistant to hydrofluoric acid corrosion.

[0007] Furthermore, the sizes of the lining plate bodies are all the same, the lengths of the "L"-shaped right-angled sides of the lining plate bodies are all equal, and the sizes of the limiting components are all the same.

[0008] Furthermore, the limiting assembly includes a locking portion and a limiting portion respectively arranged at two right-angle ends of the lining plate body, and the limiting portions of adjacent lining plate bodies are movably embedded in the locking portion and form a releasable limiting fit with the locking portion.

[0009] Specifically, the limiting portion includes a long strip extending outward along a right-angled side of the lining plate body, and a plurality of latch teeth are provided on the long strip at equal intervals along the right-angled side; The locking portion includes an adjustment groove extending inward along another right-angled side of the lining plate body, a magnetic buckle is hinged at the notch of the adjustment groove through a hinge, a buckle knob is provided on one side of the hinge through the adjustment groove, and the buckle knob is linked with the magnetic buckle through the hinge, and the clip strip is movably embedded in the adjustment groove, and when the magnetic buckle goes around the hinge and approaches the clip tooth, the magnetic buckle meshes with one of the corresponding clip teeth on the clip strip and is magnetically fixed.

[0010] More specifically, the adjustment groove is not connected to the glass edge fixing groove.

[0011] A method for using a flexible glass chemical thinning liner, using the above-mentioned flexible glass chemical thinning liner to fix the flexible glass, so as to facilitate double-sided thinning at the same time, comprising the following steps: S1: Determine the adjustment length of the limit assembly according to the size of the flexible glass original sheet; S2: First, disassemble the limiting assembly, and put one corner of the flexible glass original sheet into the corresponding fixing groove of one of the lining plate bodies, and then dock the limiting assembly in sequence along the side of the flexible glass original sheet from this corner, and make the remaining corners of the flexible glass original sheet embedded in the corresponding fixing grooves; S3: Adjust the length of the limit assembly so that the flexible glass original piece is just clamped in the corresponding fixing groove. The length of the limit assembly is consistent with that in S1. Lock the limit assembly to complete the installation of the flexible glass original piece. S4: placing the flexible glass chemical thinning liner together with the flexible glass original sheet in an etching machine for double-sided thinning.

[0012] Preferably, the installation or removal of the limit assembly in S2 includes the following steps: S201, pull up the buckle knob to rotate the magnetic buckle around the hinge toward the side away from the buckle teeth, so that the buckle teeth and the magnetic buckle are disengaged and fixed by magnetic attraction; S202: Move the card strip in the adjustment slot and determine the length of the limit assembly according to the number of exposed card teeth.

[0013] As a more preferred embodiment, the locking of the limit assembly in S3 includes the following steps: S301, moving the card strip in the adjustment slot, and judging the length of the limit assembly according to the number of exposed card teeth; S302, pressing the buckle knob to rotate the magnetic buckle around the hinge toward the side close to the latch tooth, and the latch tooth and the magnetic buckle are engaged and fixed by magnetic attraction to complete the locking.

[0014] Beneficial effects of the present invention: The flexible glass chemical thinning lining plate and the use method thereof designed by the present invention can ensure the flatness of the lining plate and the glass original sheet during chemical thinning, and effectively avoid the phenomenon of uneven thickness and low yield of the thinned finished product; Secondly, the liner size adjustment mechanism designed in the present invention can meet the processing scenarios of flexible glass of different sizes, solving the problem that the previous chemical thinning liner can only be applied to a single glass original sheet size; Furthermore, the annular rectangular liner structure of the present invention can be used for chemical thinning of both sides of the glass original sheet, abandoning the low-efficiency processing method of the existing liner that can only thin one side, thereby improving the overall utilization rate of the glass original sheet and greatly improving the processing efficiency and product yield of the chemical thinning of the flexible glass; Finally, the four corners and the periphery of the original glass sheet are surrounded by a corner wrapping structure to stabilize and protect the original glass sheet to prevent it from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the lining plate of the present invention as a whole when the limiting assembly is completely stored; Figure 2 It is a schematic diagram of the lining plate as a whole of the present invention when the limiting assembly is adjusted; Figure 3 It is a cross-sectional schematic diagram of the liner plate limiting assembly of the present invention; In the figure: 1. Liner body; 3. Hinge; 4. Clip; 5. Magnetic buckle; 6. Adjustment slot; 7. Glass edge fixing slot. DETAILED DESCRIPTION

[0016] As follows, embodiments are further described with reference to the accompanying drawings.

[0017] like Figure 1~Figure 3As shown in the figure, as a preferred embodiment 1, a flexible glass chemical thinning lining plate comprises four identical "L"-shaped lining plate bodies 1, the right-angle ends of the lining plate bodies 1 are connected by adjustable limiting components to form a limiting fit, which is convenient for adjustment according to the size of the flexible glass original sheet and enhances applicability, and the lining plate body 1 cooperates with the limiting component to form a "U"-shaped structure that is concentric and coaxial with the flexible glass original sheet, which is convenient for fixing and protecting the outside of the flexible glass original sheet, and the hollow structure exposes both the front and back sides of the original sheet, so that double-sided thinning can be performed, and the middle position of the inner corner of the lining plate body 1 is the same A glass edge fixing groove 7 is coaxially provided on the center, and the glass edge fixing groove 7 corresponds to the four corners of the flexible glass original piece one by one. The limiting component is parallel to one side of the corresponding flexible glass original piece. The corresponding corners of the lining plate main body 1 and the flexible glass original piece form an angle wrapping structure through the glass edge fixing groove 7, and the flexible glass original piece is clamped and fixed in the "U"-shaped structure, which protects the four corners and part of the periphery of the flexible glass original piece, provides force toward the center, ensures the stability of the flexible glass original piece, and the original piece will not directly contact the installation frame in the etching machine, avoiding the glass from breaking due to the lack of angle wrapping structure at the four corners during double-sided thinning.

[0018] The glass edge fixing groove 7 cooperates to form a "U" structure, and the corners of the flexible glass original piece are all embedded in the corresponding glass edge fixing groove 7, and the corners of the flexible glass original piece and the corresponding glass edge fixing groove 7 form a clamping fit to ensure the installation strength. The flexible glass original piece should be just located in the "U" structure formed by the fixing groove 7, and the thickness of the flexible glass original piece is consistent with the width of the glass edge fixing groove 7.

[0019] The lining plate body 1 and the limit assembly are both resistant to hydrofluoric acid corrosion, ensuring that double-sided thinning will not damage the lining plate mechanism.

[0020] The sizes of the lining plate bodies 1 are all the same, the lengths of the "L"-shaped right-angle sides of the lining plate bodies 1 are all the same, and the sizes of the limiting components are all the same, which is convenient for use and installation.

[0021] The limiting assembly includes a locking portion and a limiting portion respectively arranged at two right-angle ends of the lining plate body 1. The limiting portions of adjacent lining plate bodies 1 are movably embedded in the locking portion and form a releasable limiting fit with the locking portion for easy adjustment.

[0022] The limiting portion comprises a strip extending outwardly along a right-angled side of the lining plate body 1, and a plurality of latch teeth 4 are arranged at equal intervals along the right-angled side of the strip; The locking portion includes an adjustment groove 6 extending inwardly along another right-angled side of the lining plate body 1, and a magnetic buckle 5 is hinged at the notch of the adjustment groove 6 through a hinge 3. A buckle knob is provided on one side of the hinge 3 that passes through the adjustment groove 6, and the buckle knob is linked with the magnetic buckle 5 through the hinge 3. The clip strip is movably embedded in the adjustment groove 6. When the magnetic buckle 5 goes around the hinge 3 and approaches the tooth 4, the magnetic buckle 5 meshes with one of the corresponding teeth 4 on the clip strip and is magnetically fixed. Because the flexible glass original sheet itself is relatively light, the magnetic combination can fully ensure stability and is convenient for one person to fix and install.

[0023] The adjustment groove 6 is not connected to the glass edge fixing groove 7 to avoid interference between size adjustment and original glass protection.

[0024] The parallel limiter components move synchronously to ensure that the adjustment does not cause interference.

[0025] As a preferred embodiment 2, the liner body 1 and the limiting assembly are made of either a polypropylene plate (PP plate) or a carbon fiber plate that is resistant to hydrofluoric acid corrosion.

[0026] As a preferred embodiment 3, the lining plate body 1 cooperates with the limiting assembly to form a "U" structure that is concentric and coaxial with the flexible glass original sheet, and the limiting assembly can be completely stored in the lining plate body 1. At this time, the right-angle ends of adjacent lining plate bodies 1 are attached to each other, and the "U" structure formed by the lining plate body 1 is a square. The outer dimension length A is equal to the outer dimension width C, both of which are 100-800mm; the inner dimension length B is equal to the inner dimension width D, both of which are 60-600mm, and the lining plate thickness is 5-50mm.

[0027] When the limit assembly is opened, the outer dimension length A becomes A1, and the length of the side limit assembly is A2, satisfying the following conditions: A1=A+A2; The outer dimension width C becomes C1, and the length of the side limit assembly is C2, satisfying the following conditions: C1=C+C2; The inner dimension length becomes B1, and the length of the side limit assembly is A2, satisfying the following conditions: B1=B+A2; The inner dimension width becomes D1, and the length of the side limit assembly is C2, satisfying the following condition: D1=D+C2.

[0028] As a preferred embodiment 4, a method for using a flexible glass chemical thinning liner is provided, wherein the flexible glass is fixed with a flexible glass chemical thinning liner as described in any one of embodiments 1 to 3 to facilitate double-sided thinning, and the method comprises the following steps: S1: Determine the adjustment length of the limit assembly according to the size of the flexible glass original sheet; S2: First, disassemble the limiting assembly, and put one corner of the flexible glass original sheet into the corresponding fixing groove 7 of one of the lining plate main bodies 1, and then dock the limiting assembly in sequence along the side of the flexible glass original sheet from this corner, and make the remaining corners of the flexible glass original sheet embedded in the corresponding fixing groove 7; S3: Adjust the length of the limiting assembly so that the flexible glass original piece is just clamped in the corresponding fixing groove 7. The length of the limiting assembly is consistent with that in S1. Lock the limiting assembly to complete the installation of the flexible glass original piece. S4: placing the flexible glass chemical thinning liner together with the flexible glass original sheet in an etching machine for double-sided thinning.

[0029] The installation or removal of the limit assembly in S2 includes the following steps: S201, pull up the buckle knob to make the magnetic buckle 5 rotate around the hinge 3 toward the side away from the latch tooth 4, so that the latch tooth 4 and the magnetic buckle 5 are disengaged and magnetically fixed; S202: Move the clamping strip in the adjusting slot 6 and determine the length of the limit assembly according to the number of exposed clamping teeth 4.

[0030] The locking of the limit assembly in S3 includes the following steps: S301, moving the card strip in the adjustment slot 6, and judging the length of the limit assembly according to the number of exposed card teeth 4; S302, pressing the buckle knob to rotate the magnetic buckle 5 around the hinge 3 toward the side close to the latch tooth 4, and the latch tooth 4 engages with the magnetic buckle 5 and is magnetically fixed to complete the locking.

[0031] As a preferred embodiment 5, the present invention provides a flexible glass chemically thinned liner and a method for using the same, comprising the following steps: Step 1: The main material of the lining plate is made of polypropylene plate (PP plate) or carbon fiber plate that is resistant to hydrofluoric acid corrosion.

[0032] Step 2: The lining plate is processed into a circular rectangle with an outer dimension length of A (100-800mm), a width of C (100-800mm), an inner dimension length of B (60-600mm), a width of D (60-600mm), and a lining plate thickness of G (5-50mm).

[0033] Step 3: Select three sizes of glass sheets: 300×300×0.25mm, 320×450×0.3mm, and 400×500×0.28mm.

[0034] Step 4: Adjust each side of the lining plate in turn, turn up the buckle knob, and disengage the buckle tooth 4 from the magnetic buckle 5; Step 5: Pull out or insert a certain number of latch teeth 4 into the latch slot 6; Step 6: Press the buckle knob to engage the buckle tooth 4 with the magnetic buckle 5 under the action of magnetic adsorption.

[0035] Step 7: Fix the four sides of the original glass sheet in the glass edge fixing groove 7, and then place the entire piece in an etching machine for double-sided thinning.

[0036] Step 8: After the thinning of experimental group 1 is completed, steps 4 to 7 are repeated to thin the samples of experimental groups 2 and 3.

[0037] In order to verify the effect of the experimental group of the present invention, a comparison group was prepared for comparative testing. The preparation steps of the comparison group are as follows: Step 1: The main material of the lining plate is a non-hollowed polypropylene plate (PP plate) or a carbon fiber plate that is resistant to hydrofluoric acid corrosion; Step 2: Select three sizes of glass sheets: 300×300×0.25mm, 320×450×0.3mm, and 400×500×0.28mm; Step 3: Customize three sizes of non-hollow lining boards according to the size of the original glass; Step 4: Fix the original glass sheet on the non-hollow lining board with UV glue; Step 5: Place it in the etching machine together with the experimental group for chemical thinning.

[0038] The comparison test results between the control group and the experimental group are shown in Table 1:

[0039] It can be seen from the test results that the flexible glass prepared by adopting the flexible glass chemical thinning lining plate and the use method of the present invention requires a shorter thinning time and has a higher thinning efficiency. At the same time, double-sided thinning also ensures that the thickness error of the whole sample plate is lower than that of the comparison group, effectively improving the product yield and product quality in the flexible glass thinning preparation process.

Claims

1. A flexible glass chemically thinned liner, characterized in that: The invention comprises four identical "L"-shaped lining plate bodies (1), wherein the right-angle ends of the lining plate bodies (1) are connected via adjustable limiting components to form a limiting fit, and the lining plate bodies (1) cooperate with the limiting components to form a "U"-shaped structure that is concentric and coaxial with the flexible glass original sheet, and the middle positions of the inner corners of the lining plate bodies (1) are all concentrically and coaxially provided with glass edge fixing grooves (7), and the glass edge fixing grooves (7) correspond to the four corners of the flexible glass original sheet one by one, and the limiting components are parallel to one side of the corresponding flexible glass original sheet, and the corresponding corners of the lining plate bodies (1) and the flexible glass original sheet are formed into an angle wrapping structure via the glass edge fixing grooves (7), and the flexible glass original sheet is clamped and fixed in the "U"-shaped structure.

2. A flexible glass chemically thinned liner according to claim 1, characterized in that: The glass edge fixing grooves (7) cooperate to form a "U"-shaped structure, and the corners of the flexible glass original sheet are all embedded in the corresponding glass edge fixing grooves (7), and the corners of the flexible glass original sheet and the corresponding glass edge fixing grooves (7) form a clamping fit.

3. A flexible glass chemically thinned liner according to claim 2, characterized in that: The lining plate body (1) and the limiting assembly are both resistant to hydrofluoric acid corrosion.

4. A flexible glass chemically thinned liner according to claim 3, characterized in that: The dimensions of the lining plate bodies (1) are all the same, the lengths of the "L"-shaped right-angled sides of the lining plate bodies (1) are all equal, and the dimensions of the limiting components are all the same.

5. A flexible glass chemically thinned liner according to claim 4, characterized in that: The limiting assembly comprises a locking portion and a limiting portion respectively arranged at two right-angle ends of the lining plate body (1); the limiting portions of adjacent lining plate bodies (1) are movably embedded in the locking portion and form a releasable limiting fit with the locking portion.

6. A flexible glass chemically thinned liner according to claim 5, characterized in that: The limiting portion comprises a long strip extending outwardly along a right-angled side of the lining plate body (1), and a plurality of latch teeth (4) are provided on the long strip at equal intervals along the right-angled side. The locking portion comprises an adjustment groove (6) extending inwardly along another right-angled side of the lining plate body (1); a magnetic buckle (5) is hingedly connected to the groove opening of the adjustment groove (6) through a hinge (3); a buckle knob is provided on one side of the hinge (3) penetrating the adjustment groove (6); the buckle knob is linked to the magnetic buckle (5) through the hinge (3); a clip strip is movably embedded in the adjustment groove (6); when the magnetic buckle (5) surrounds the hinge (3) and approaches the clip teeth (4), the magnetic buckle (5) meshes with one of the corresponding clip teeth (4) on the clip strip and is magnetically fixedly engaged.

7. A flexible glass chemically thinned liner according to claim 6, characterized in that: The adjustment groove (6) is not connected to the glass edge fixing groove (7).

8. A method for using a flexible glass chemically thinned liner, characterized in that: The method of fixing the flexible glass by using a flexible glass chemical thinning liner as claimed in any one of claims 1 to 7 is convenient for performing double-sided thinning simultaneously, comprising the following steps: S1: Determine the adjustment length of the limit assembly according to the size of the flexible glass original sheet; S2: First, disassemble the limiting assembly, and place one corner of the flexible glass original piece into a corresponding fixing groove (7) of one of the lining plate bodies (1), and then dock the limiting assembly in sequence along the side of the flexible glass original piece from this corner, and make the remaining corners of the flexible glass original piece be embedded in the corresponding fixing groove (7); S3: Adjust the length of the limit assembly so that the flexible glass original piece is just clamped in the corresponding fixing groove (7). The length of the limit assembly is consistent with that in S1. Lock the limit assembly to complete the installation of the flexible glass original piece. S4: placing the flexible glass chemical thinning liner together with the flexible glass original sheet in an etching machine for double-sided thinning.

9. The method for using a flexible glass chemically thinned liner according to claim 8, characterized in that: The installation or removal of the limit assembly in S2 includes the following steps: S201, pull up the buckle knob, so that the magnetic buckle (5) rotates around the hinge (3) toward the side away from the latch tooth (4), and the latch tooth (4) and the magnetic buckle (5) are disengaged and magnetically fixed; S202: Move the clamping strip in the adjustment slot (6) and determine the length of the limit assembly according to the number of exposed clamping teeth (4).

10. The method for using a flexible glass chemically thinned liner according to claim 9, characterized in that: The locking of the limit assembly in S3 includes the following steps: S301, moving the clamping strip in the adjustment slot (6), and judging the length of the limit assembly according to the number of exposed clamping teeth (4); S302, pressing the buckle knob, so that the magnetic buckle (5) rotates around the hinge (3) toward the side close to the latch tooth (4), and the latch tooth (4) and the magnetic buckle (5) are engaged and fixed by magnetic attraction to complete the locking.

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