CN113835270B

CN113835270B - Electronic device and manufacturing method thereof

Info

Publication number: CN113835270B
Application number: CN202110772331.7A
Authority: CN
Inventors: 张昱仑; 陈冠勋
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2020-08-21
Filing date: 2021-07-08
Publication date: 2023-05-26
Anticipated expiration: 2041-07-08
Also published as: CN113835270A

Abstract

An electronic device and a manufacturing method thereof are provided, wherein the electronic device comprises a liquid crystal display panel, frame glue and side sealing glue. The liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer positioned between the first substrate and the second substrate. The frame glue is positioned at least one edge of the liquid crystal display panel and is clamped between the first substrate and the second substrate. The side sealing glue is positioned on at least two adjacent sides of the liquid crystal display panel, covers the side surfaces of the first substrate and the second substrate, and surrounds the liquid crystal layer. The side sealing glue comprises a first glue body and a second glue body, wherein the first glue body and the second glue body are respectively positioned at a first edge and a second edge of two adjacent sides of the liquid crystal display panel, and a first butt joint boundary line which is not parallel to the edges of the first glue body and the second glue body is arranged at the butt joint position of the first glue body and the second glue body.

Description

Electronic device and manufacturing method thereof

Technical Field

The present invention relates to an electronic device and a method for manufacturing the same, and more particularly, to an electronic device with a sealant and a side seal.

Background

A public information display (Public Information Display) is a digital electronic device that presents information, data, and provides timely information. It can provide multiple information and replace traditional bulletin boards or signs. Since the common information display often needs to be manufactured in a special size, it is difficult for the conventional size liquid crystal panel to meet the user's needs, and thus the required size is cut directly on the liquid crystal display panel by a cutting process.

In the cutting process, the liquid crystal display panel is cut by a cutting device and glued, however, the glue is glued at the corners, which has a Corner Rounding (Corner Rounding) phenomenon due to surface tension, so that the appearance is poor, and the Reliability (Reliability) of the display panel with the Corner Rounding is degraded.

Disclosure of Invention

The invention provides an electronic device which can improve poor appearance caused by a cutting process, is beneficial to improving reliability and further provides improved display quality.

The present invention provides another electronic device, whose design helps to improve the design margin (design margin) of the electronic device corresponding to various sizes and shapes.

The invention provides an electronic device and a manufacturing method thereof, wherein the electronic device comprises a liquid crystal display panel, frame glue and side sealing glue. The liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer positioned between the first substrate and the second substrate. The frame glue is positioned at least one edge of the liquid crystal display panel and is clamped between the first substrate and the second substrate. The side sealing glue is positioned on at least two adjacent sides of the liquid crystal display panel, covers the side surfaces of the first substrate and the second substrate, and surrounds the liquid crystal layer. The side sealing glue comprises a first glue body and a second glue body, wherein the first glue body and the second glue body are respectively positioned at a first edge and a second edge of two adjacent sides of the liquid crystal display panel, and a first butt joint boundary line is arranged at the butt joint position of the first glue body and the second glue body, and the extending direction of the first butt joint boundary line is not parallel to the extending direction of the first edge and the second edge.

The invention provides a manufacturing method of the electronic device, which comprises a first pressing and splitting step, a first sealing step, a second pressing step, a first sealing oblique angle cutting step, a second splitting step and a second sealing step. In the first sealing step, the liquid crystal display panel is pressed and cracked along a first direction, wherein the liquid crystal display panel comprises a first substrate, a second substrate, a liquid crystal layer arranged between the first substrate and the second substrate and frame glue surrounding the liquid crystal layer, and the liquid crystal display panel forms a first edge exposed out of the liquid crystal layer at the cracked position. In the first sealing step, a first colloid is formed at the first edge, wherein the first colloid covers the side surfaces of the first substrate and the second substrate, and the frame colloid and the first colloid encircle the liquid crystal layer. In the second lamination step, the liquid crystal display panel is laminated along a second direction to form a second pre-cut line of a second edge on the liquid crystal display panel, wherein the second edge is adjacent to and intersected with the first edge. And a first glue sealing oblique angle cutting step, wherein an oblique angle notch is formed at the overlapping part of the first glue body and the extending direction of the second edge pressing line. And a second splitting step of splitting the liquid crystal display panel along the bonding line of the second edge to form a second edge exposing the liquid crystal layer at the split position, and a second sealing step of forming a second colloid at the second edge, wherein the second colloid covers the side surfaces of the first substrate and the second substrate, the second colloid, the frame colloid and the first colloid surround the liquid crystal layer, a first butt joint boundary line is formed at the butt joint position of the first colloid and the second colloid, and the extending direction of the first butt joint boundary line is not parallel to the extending direction of the first edge and the second edge.

In an embodiment of the invention, the first colloid and the second colloid are in shapes corresponding to each other at the first butt boundary and are in contact with each other, and the first colloid and the second colloid form a right angle at the butt joint.

In an embodiment of the present invention, an angle between an extending direction of a first edge and an extending direction of a second edge of the liquid crystal display panel is X, an angle between an extending direction of a first butt-joint boundary and an extending direction of the second edge is Y, and X, Y satisfies the following formula (1):

Y＝[(360°-X)*1/2]±20°……(1)。

in some embodiments, X is, for example, 90 ° and Y is 120 ° to 155 °. In another portion of embodiments, X is, for example, 120 and Y is 100 to 145.

In an embodiment of the invention, an included angle between an extending direction of the first edge and an extending direction of the second edge is an obtuse angle, and an edge of the liquid crystal display panel is composed of the first edge and the second edge where the side seal glue is located and an edge where the frame glue is located.

In an embodiment of the invention, the side sealing glue further includes a third glue located at a third edge of the liquid crystal display panel and covering side surfaces of the first substrate and the second substrate, and the second glue and the third glue have a second butt-joint boundary at a butt-joint position, wherein an extending direction of the second butt-joint boundary is not parallel to an extending direction of the second edge and the third edge. In some embodiments, an angle between the extending direction of the first edge and the extending direction of the second edge is an obtuse angle, an angle between the extending direction of the second edge and the extending direction of the third edge is an obtuse angle, and an angle between the extending direction of the first edge and the extending direction of the third edge is a right angle.

In an embodiment of the invention, the side sealing glue further includes a plurality of fourth glue bodies, the fourth glue bodies are respectively located at a plurality of fourth edges of the liquid crystal display panel, and adjacent two of the fourth glue bodies have a third butt joint boundary at the butt joint position, wherein an extending direction of the third butt joint boundary is not parallel to an extending direction of any one of the fourth edges.

In one embodiment of the present invention, the liquid crystal layer is in direct contact with the side seal.

In an embodiment of the invention, in a top view of the electronic device, the side seal is adjacent to a display area in the liquid crystal display panel.

In an embodiment of the invention, the electronic device further includes a gate driving circuit and a data driving circuit, which are respectively disposed at two sides of the liquid crystal display panel where the sealant is disposed, and the electronic device includes a double-sided side seal frame where the gate driving circuit and the data driving circuit are not disposed, wherein the first interface line is located at a corner of the double-sided side seal frame.

In an embodiment of the invention, the electronic device further includes a gate driving circuit and a data driving circuit, which are disposed on a single side of the liquid crystal display panel, where the frame glue is disposed, and the electronic device includes three side seal frames without the gate driving circuit and the data driving circuit, wherein the first butt-joint boundary line is located at a corner of the three side seal frames.

In an embodiment of the invention, the first substrate of the liquid crystal display panel includes a plurality of gate lines extending in a transverse direction and a plurality of switching lines extending in a longitudinal direction, each of the plurality of switching lines is electrically connected to one of the plurality of gate lines, and signals of the gate driving circuit are respectively transmitted to one of the plurality of gate lines through the plurality of switching lines.

In view of the above, the present invention provides an electronic device and a method for manufacturing the same, wherein the first and second molding steps and the bevel cutting step are utilized to form a bevel notch at a position where the extending directions of the first and second edge bonding wires overlap, so that the second molding can be coated, and poor appearance caused by the cutting process can be improved. The bevel notch structure of the electronic device has the included angle Y between the extending direction of the bevel notch and the second pre-cutting line of the second edge, and the included angle Y is controlled within a proper range, so that the phenomenon that the side sealing adhesive has Corner Rounding (Corner Rounding) due to surface tension can be improved, and further poor appearance is caused, or the manufactured panel has Reliability, and the design of the bevel notch structure is also helpful for improving the design margin (design margin) of the electronic device corresponding to various sizes and shapes.

In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1A is a schematic perspective view of an electronic device according to an embodiment of the invention.

Fig. 1B is a schematic cross-sectional view along section line aa' of fig. 1A.

Fig. 1C is a schematic cross-sectional view along section line bb' of fig. 1A.

Fig. 1D is an enlarged top view of the corner of the side seal of fig. 1A.

Fig. 1E is a top view of an electronic device with a double-sided side seal according to an embodiment of the invention.

Fig. 1F is a top view of an electronic device with a three-sided bezel according to an embodiment of the invention.

Fig. 2A is a flowchart of a method of manufacturing an electronic device according to an embodiment of the invention.

Fig. 2B is a schematic diagram of a manufacturing method of an electronic device according to an embodiment of the invention.

Fig. 3 is a top view of a method of manufacturing an electronic device according to an embodiment of the invention.

FIG. 4 is a graph of adhesive width versus kerf angle in accordance with an embodiment of the present invention.

Fig. 5 is a top view of an electronic device according to an embodiment of the invention.

Fig. 6A-6C are top views of an electronic device according to an embodiment of the invention.

Reference numerals illustrate:

10. 20, 30, 40A, 40B, 40C, 40D, 40E, 50: electronic device

100: liquid crystal display panel having a light shielding layer

100a: master slice

100b, 100c: sub-sheet

110: first substrate

120: second substrate

130: liquid crystal layer

200: frame glue

300: side sealing glue

310: first colloid

320: second colloid

330: third colloid

340: fourth colloid

400: first butt-joint boundary line

410: second butt-joint boundary line

420: third butt-joint boundary line

510. 512: double-sided side edge sealing frame

610. 612, 614: three-side edge sealing frame

S200: pre-cutting step

S210: a first lamination step

S220: first splitting step

S230: a first glue sealing step

S240: a second lamination step

S250: a first glue sealing oblique angle cutting step

S260: second splitting step

S270: a second sealing step

6A: cut the liquid crystal display panel of the secondary

6B: liquid crystal display panel cut three times

6C: liquid crystal display panel cut for limited times

E1: a first edge

E2: second edge

E3: third edge

E4: fourth edge

W1: first width of glue

W2: second width of glue

W3: third width of glue

P: reserved area

Q: unreserved region

M: laminating gumming machine

X: the angle between the extending direction of the first edge and the extending direction of the second edge

Y: the extending direction of the bevel notch forms an included angle with the second pre-cutting line of the second edge

AA: display area

BC: bevel cut

NA: non-display area

C1: first pre-cutting line

C2: second pre-cutting line

D1: first direction

D2: second direction

Detailed Description

Fig. 1A is a schematic perspective view of an electronic device 10 according to an embodiment of the invention. Fig. 1B is a schematic cross-sectional view along section line aa' of fig. 1A. Fig. 1C is a schematic cross-sectional view along section line bb' of fig. 1A. Fig. 1D is a top view of an electronic device according to an embodiment of the invention.

Referring to fig. 1A to 1D, the liquid crystal display panel 100 includes a first substrate 110, a second substrate 120, a liquid crystal layer 130, a sealant 200, and a side seal 300. The liquid crystal layer 130 is located between the first substrate 110 and the second substrate 120. The first substrate 110 may be a pixel array substrate including active devices, and the second substrate 120 may be a filter array substrate, but the invention is not limited thereto. Specifically, the first substrate 110 may form a pixel array, and includes a scan line and a data line, where the scan line intersects the data line, and the pixel array includes a plurality of pixel structures, each of the pixel structures has an active device and a pixel electrode, and the active device is electrically connected to the corresponding scan line, data line and pixel electrode. The second substrate 120 is disposed on the opposite side of the first substrate 110, and may include a filter array and a shading pattern layer, where the filter array includes a plurality of filter patterns corresponding to the pixel structures respectively. In addition, the liquid crystal layer 130 may be filled between the first substrate 110 and the second substrate 120, and the liquid crystal layer 130 may include an alignment film and liquid crystal molecules, and the liquid crystal molecules may be tilted to different degrees according to the voltage applied to the corresponding pixel electrode, so as to display a display screen. As shown in fig. 1A and 1B, the sealant 200 is located at least at one edge of the lcd panel 100 and is sandwiched between the first substrate 110 and the second substrate 120, so that the liquid crystal is sealed between the two substrates.

It should be noted that the electronic device of the present invention includes a side sealing compound 300 covering the side surfaces of the first substrate 110 and the second substrate 120. As shown in fig. 1A and fig. 1C, the side seal 300 is located at least on two adjacent sides of the liquid crystal display panel 100, and covers the side surfaces of the first substrate 110 and the second substrate 120, the frame glue 200 and the side seal 300 encircle the liquid crystal layer 130, and the side seal 300 may directly contact the liquid crystal. Specifically, as shown in fig. 1D, the side sealing compound 300 of the present embodiment includes a first compound 310 and a second compound 320, the first compound 310 and the second compound 320 are respectively located at a first edge E1 and a second edge E2 of two adjacent sides of the liquid crystal display panel 100, the first compound 310 and the second compound 320 have a first butt-joint boundary 400 at a butt-joint position, wherein an extending direction of the first butt-joint boundary 400 is not parallel to an extending direction of the first edge E1 and the second edge E2, and an angular relationship between the first butt-joint boundary 400 and the first edge E1 and the second edge E2 is as follows.

The components of the sealant 200 may be generally known and commonly used, and include thermosetting and/or photo-hardening resins, such as epoxy resin (epoxy resin), acrylic resin (acrylic resin), polyimide (PI) or polysiloxane resin (polysiloxane resin/silicone), but not limited thereto. The side seal 300 is in direct contact with the liquid crystal in the liquid crystal layer 130, the material of the side seal 300 may be a material with high compatibility with the liquid crystal, and the composition of the side seal 300 may be the same as or different from that of the frame glue 200. The composition of the side seal 300 includes a material having high compatibility with liquid crystal such as acrylic resin and epoxy resin, so that the liquid crystal will not be contaminated even if the liquid crystal contacts the side seal. The thickness of the side seal 300 is about 500 microns, preferably 500 microns or less, to prevent problems of visual taste and material waste due to excessive adhesive width.

Referring to fig. 1B and 1C, fig. 1B and 1C are cross-sectional views of aa 'and bb' in fig. 1A, respectively. The liquid crystal layer 130 in fig. 1B and 1C includes an Active Area (AA) adjacent to the sealant 200. In the present embodiment, the sealant 200 and the side seal 300 surround the liquid crystal layer 130 and seal the liquid crystal layer between the first substrate 110 and the second substrate 120. As shown in fig. 1B, the edge of the sealant 200 may not be aligned with the first substrate 110 and the second substrate 120 in the top view of the lcd panel 100, and the thickness of the sealant 200 is substantially equal to the distance between the two substrates, so that the sealant 200 does not expose outside the substrates and does not cover the sides of the substrates. In contrast, referring to fig. 1C, the side seal 300 covers the side surfaces of the first substrate 110 and the second substrate 120, and protrudes slightly from the side surfaces of the

substrates

110 and 120 due to surface tension. The thickness of the side seal 300 is not particularly limited as long as it can seal the liquid crystal layer 130 located between the first substrate 110 and the second substrate 120. In the top view of the electronic device 10, the side seal 300 is adjacent to the display area AA in the liquid crystal display panel 100. The display area AA is also disposed on the first substrate 110, and may include scan lines, data lines and pixel units, each of which is driven by a scan line and a data line.

Referring to fig. 1D, fig. 1D is an enlarged top view of the corner of the side seal 300 in fig. 1A. As shown in fig. 1D, the first glue body 310 and the second glue body 320 of the side sealing glue 300 are located on the first edge E1 and the second edge E2, and a corner of the first glue body 310 and the second glue body 320 has a first butt-joint boundary 400.

Fig. 1E is a top view of an electronic device 20 with a double-sided side seal according to an embodiment of the invention. Referring to fig. 1E, the electronic device 20 of the present embodiment includes a display Area AA and a Non-display Area NA (Non-Active Area), and the Non-display Area NA of the electronic device 20 of the present embodiment is located substantially around the display Area AA, and forms a frame with four sides in the display Area AA, as shown in fig. 1E, the frame with the Non-display Area NA may be substantially divided into two wide sides with a wider width and two side seals with a narrower width (i.e. the first edge E1 and the second edge E2), so the electronic device 20 of the present embodiment is a double-sided side seal frame type, wherein the frame glue 200 is located on a wide side, and the first glue 310 and the second glue 320 of the side seal 300 are located on the side seals, for example.

More specifically, the display area AA is located next to two side frames disposed next to the side seal. The first substrate in the display area AA may include scan lines, data lines and pixel units, and the display area AA is similar to the display area AA of the above embodiment and will not be described herein. The non-display area NA comprises two wide frames, wherein the two wide frames comprise active elements formed by a source driving circuit, a gate driving circuit, a data driving circuit and the like. The side seal frame side is a first edge E1 and a second edge E2 where the side seal 300 is located, and the first glue 310 and the second glue 320 are located at the first edge E1 and the second edge E2, respectively, where the first butt-joint boundary 400 is located at a corner of the double-sided side seal frame. In order to maximize the screen size, the display panel with the side seal frame manufactured by the embodiment of the invention is more and more widely applied to various devices, and particularly, the technology development trend of the side seal frame is formed for the requirements of beauty and visual effect. The embodiment can provide the liquid crystal display panel with the side seal frames at two sides, realize a large-size display device or splice a plurality of display panels, and also can increase the aesthetic feeling of the appearance of the electronic device.

Referring to fig. 1F, fig. 1F is a top view of an electronic device with a three-sided side seal frame according to an embodiment of the invention, similar to fig. 1E, the substrate of the electronic device 30 of the embodiment includes a display area AA and a non-display area NA, and the difference is that in fig. 1E: the non-display area NA of the electronic device 30 of the present embodiment forms a border with one wide edge and three side edges outside the display area AA. In the present embodiment, the first interface 400 where the first glue body 310 and the second glue body 320 are in butt joint is located at one corner of the three side edge seals, and the second interface 410 where the second glue body 320 and the third glue body 330 are in butt joint is located at the other corner. The embodiment can provide the liquid crystal display panel with the three side seal frames, realize a large-size display device or splice a plurality of display panels, and also can increase the aesthetic feeling of the appearance of the electronic device.

Fig. 2A is a flow chart of a manufacturing method of an electronic device according to an embodiment of the invention, and fig. 2B is a flow chart of a manufacturing method of an electronic device according to an embodiment of the invention. As shown in fig. 2A and 2B, in the present embodiment, the manufacturing method of the electronic device may include a pre-cutting step S200, a first bonding step S210, a first breaking step S220, a first sealing step S230, a second bonding step S240, a first sealing bevel cutting step S250, a second breaking step S260, and a second sealing step S270.

Referring to fig. 2A and 2B together, first, the lcd panel master 100a includes a first substrate 110, a second substrate 120, a liquid crystal layer 130 disposed between the first substrate 110 and the second substrate 120, and a sealant 200 surrounding the liquid crystal layer. In the pre-cutting step S200 of fig. 2B, the positions of the first pre-cut line C1 and the second pre-cut line C2 of the mother film 100a of the liquid crystal display panel are set according to the size of the liquid crystal display panel 100 required by the user. Specifically, the panel product (i.e. the mother liquid crystal display panel 100 a) is cut into the substrate along the first pre-cut line C1 and the second pre-cut line C2 of the first direction D1 and the second direction D2 by a conventional cutting device, so that the subsequent splitting step is performed, and in the pre-cutting step S200, the liquid crystal display panel 100 is not completely cut and only the grooves with a depth smaller than the thickness of the substrate are cut at the preset position. In the present embodiment, cutting is performed using a cutter wheel, a laser, or other cutting device, for example, but not limited thereto. Next, the lcd panel master 100a after the pre-cutting step S200 is sent to the laminating and gluing machine M to perform a first laminating step S210 and a first splitting step S220.

As shown in the schematic diagram of the first lamination step S210 in fig. 2B, the liquid crystal display panel master 100a is first subjected to the first lamination step S210 in the lamination coater M, and the lamination coater M moves in the vertical direction to vertically clamp the retention area P of the liquid crystal display panel master to be retained in a clamping manner, and performs lamination on the liquid crystal display panel master 100a along the first pre-cut line C1 in the lamination coater M. Specifically, the first pre-cut line C1 is opposite to the bonding edge of the Ji Yage spreader M, so that the non-reserved area Q to be cracked and removed in the later step is exposed outside the spreader M. The reserved area P and the non-reserved area Q define the size of the lcd panel 100 to be reserved by taking the first pre-cut line C1 and the second pre-cut line C2 as boundaries. While the lamination glue machine M performs the first lamination step S210, the external pressure is increased by pressurizing the outside, so as to facilitate the subsequent process flow.

Next, referring to the schematic diagram of the first splitting step S220 in fig. 2B, after the first lamination step S210, the liquid crystal display panel mother sheet 100a is split along the first pre-cut line C1 in a folding manner to remove the non-reserved area Q of the liquid crystal display panel mother sheet 100a exposed outside the lamination glue spreader M, so as to form the liquid crystal display panel reserved sub-sheet 100B. The manner of breaking is, for example, to apply an external force to the portion of the first direction D1 cut in the pre-cutting step S200, but the present invention is not limited to any particular manner of breaking. In the first splitting step S220, the liquid crystal display panel mother sheet 100a forms a first edge E1 exposing the liquid crystal layer at the splitting section, and in addition, since the liquid crystal display panel mother sheet 100a is pressed in the first pressing step S210, the internal liquid crystal pressure and the external pressure of the first edge E1 are balanced, so that the liquid crystal of the liquid crystal layer is prevented from flowing out from the notch.

Referring to the schematic diagram of the first splitting step S230 in fig. 2B, a first sealing step S230 is performed on the cut edge of the remaining sub-sheet 100B of the lcd panel, a side sealing 300 is coated on the first edge E1 to form a first glue 310, the first glue 310 covers the side surfaces of the first substrate 110 and the second substrate 120 as in fig. 1C, and in the remaining sub-sheet 100B of the lcd panel, the frame glue 200 and the first glue 310 encircle the liquid crystal layer 130.

Referring to the schematic diagram of the second lamination step S240 in fig. 2B, after the first sealing step S230 is completed, the remaining sub-sheet 100B of the lcd panel can be rotated by an angle or moved to expose the non-remaining area Q of the panel outside the lamination coater M, wherein the rotation angle is, for example, 90 ° in the present embodiment.

Then, the second pre-cut line C2 of the second direction D2 is used to press the bonding edge of the Ji Yage bonding machine M, and then a second bonding step S240 is performed, as in the first bonding step S210, the bonding machine M in the second bonding step S240 moves in the vertical direction to vertically clamp the reserved area P of the reserved sub-sheet 100b of the liquid crystal display panel in a clamping manner, and press the reserved area Q of the reserved sub-sheet 100b of the liquid crystal display panel along the second pre-cut line C2 in the bonding machine M, so as to expose the non-reserved area Q of the reserved sub-sheet 100b of the liquid crystal display panel outside the bonding machine M, thereby forming the reserved sub-sheet 100b of the liquid crystal display panel.

Specifically, before the second splitting step S260, a first sealing bevel cutting step S250 is performed on the first glue of the remaining sub-sheet 100b of the liquid crystal display panel. In detail, referring to fig. 3 at the same time, fig. 3 is a top view of the first glue 310 and the second glue 320 in the first glue bevel cutting step S250 and the second glue sealing step S270 in the manufacturing method of the electronic device according to an embodiment of the invention. As shown in fig. 2B and fig. 3, in the first sealing glue bevel cutting step S250, a bevel cut BC is cut in one direction by a blade on the first glue 310 of the first edge E1. The blade hardness is smaller than the first substrate 110 and the second substrate 120, so that the first substrate 110 and the second substrate 120 do not leave scores.

Please refer to the schematic diagram of the second breaking step S260 in fig. 2B and fig. 3. The second splitting step S260 is performed as in the first splitting step, the liquid crystal display panel is split along the second pre-cut line C2 of the second edge E2, the panel of the second direction non-retaining area Q is removed in a folded manner, and the liquid crystal display panel retaining sub-sheet 100C is formed, and in this step, the liquid crystal display panel retaining sub-sheet 100C forms the second edge E2 exposing the liquid crystal layer at the split position. In addition, since the liquid crystal display panel master 100b is pressurized in the second pressing step S240, the internal liquid crystal pressure of the second edge E2 is balanced with the external pressure, and the liquid crystal of the liquid crystal layer is prevented from flowing out from the slit.

Please refer to fig. 2B, which illustrates a schematic diagram of the second molding step S270 and fig. 3. In the second sealing step S270, a second glue 320 is formed by applying a side sealing glue to the second edge E2 of the remaining sub-sheet 100c and the bevel notch BC of the liquid crystal display panel, the second glue 320 covers the side surfaces of the first substrate 110 and the second substrate 120 as described above, and the second glue 320, the frame glue 200 and the first glue 310 surround the liquid crystal layer 130, so that the liquid crystal is sealed in the liquid crystal layer 130, thereby completing the liquid crystal display panel 100 with a predetermined size and shape. The electronic device of the present embodiment may be, for example, the aforementioned double-sided frame liquid crystal electronic device 20 of fig. 1E.

In order to more clearly illustrate the manufacturing method of the electronic device according to an embodiment of the invention, the following description is more specifically directed to the forming method of the first colloid 310 and the second colloid 320 in fig. 3. Referring to fig. 3, fig. 3 is a top view illustrating a manufacturing method of an electronic device according to an embodiment of the invention. First, an angle between the extending direction of the first edge E1 and the extending direction of the second edge E2 is defined as X, and an angle between the extending direction of the bevel cut BC and the second pre-cut line C2 of the second edge E2 is defined as Y. In the present embodiment, the width of the first glue 310 is W1, and the width of the second glue 320 is W2. As mentioned above, after the first splitting step S220 and the first sealing step S230, the included angle X between the extending direction of the first edge E1 and the extending direction of the second edge E2 on the liquid crystal display panel can be obtained, the first sealing oblique angle cutting step S250 is performed, the blade is used to cut the first colloid 310 along the predetermined oblique angle cut BC, and the second splitting step S260 is used to split the non-reserved area of the liquid crystal display panel to obtain the notch with the included angle Y. Then, the second molding step S270 is performed, and the second edge E2 forms the second glue 320, so that the first glue 310 and the second glue 320 of the lcd panel 100 form the first interface 400 at the interface. If the second glue 320 is directly coated without performing the first glue bevel cutting step S250, the Corner will have Corner Rounding (Corner Rounding) due to surface tension, which results in poor appearance and Reliability of the manufactured panel. The width of the first adhesive width W1 and the width of the second adhesive width W2 are affected by the angle Y between the extending direction of the bevel notch BC and the second pre-cutting line at the second edge, and the ratio of the two is further affected.

Referring to fig. 4, fig. 4 is a graph showing the relationship between the cutting angle and the width of the glue when the preset shape of the lcd panel is quadrilateral and the edge is at right angle (i.e. the included angle X) is 90 °. The horizontal axis is the included angle Y between the extending direction of the bevel notch BC and the second pre-cutting line of the second edge, and the vertical axis is the ratio W2/W1 of the second adhesive width to the first adhesive width. In the embodiment of the invention, the relationship between the included angle and the width of the adhesive is shown in fig. 4, and more specifically, the preset edge angle X and the cutting angle Y of the liquid crystal display panel satisfy the following relationship.

Wherein X, Y preferably satisfies the following formula (1):

Y＝[(360°-X)*1/2]±20°……(1)。

x, Y preferably satisfies the following formula (2):

Y＝(360°-X)*1/2……(2)。

in this embodiment, when the included angle X is 90 °, Y is preferably in the range of 120 ° to 155 °, and most preferably in the range of 135 °. If the included angle Y is larger than 155 °, the adhesive width W2 when the second adhesive is applied is too narrow, and Reliability (Reliability) may be a concern. If the included angle Y is smaller than 120 °, the glue width W2 is too wide when the second glue is coated, so that sharp corners are formed at the corners, and the glue is easy to crack (Chipping), and the appearance is poor.

Referring to fig. 5, an example of forming a liquid crystal display panel with a conventional shape such as a rectangle is shown, and the edges thereof are cut at right angles. As shown in fig. 5, the electronic device 50 of the present embodiment is different from the aforementioned electronic device 10 in that: the liquid crystal display panel 200 of the present embodiment further includes a third edge E3 and a third glue 330, and has a first butt-joint boundary 400 and a second butt-joint boundary 410, and the manufacturing method is similar to the previous steps, and the description thereof is omitted. The electronic device manufactured in this embodiment may be, for example, the electronic device 30 with the three-sided side seal frame.

Referring to fig. 6A to 6C, the electronic devices 40A to 40E according to other embodiments of the present invention may be non-rectangular cutting, and the included angle X between the extending direction of the first edge E1 and the extending direction of the second edge E2 may be an acute angle or an obtuse angle, and it should be noted that fig. 6A to 6C are only schematic views for conveniently showing the positions of the sealant 200 and the side seal 300, and are not the actual proportions and top views of the sealant 200 and the side seal 306.

Referring to fig. 6A, fig. 6A is a top view of an electronic device according to an embodiment of the invention, and sequentially performs the first bonding step, the first splitting step, the first molding step, the second bonding step, the first molding bevel cutting step, the second splitting step, and the second molding step, wherein an angle between an extending direction of the first edge E1 and an extending direction of the second edge E2 is an obtuse angle, and an edge of the liquid crystal display panel in the electronic device 40A includes the first edge E1 where the first molding compound 310 is located, the second edge E2 where the second molding compound 320 is located, and an edge where the frame molding compound 200 is located, and in the top view of the electronic device 40A, an angle between the first molding compound 310 and the second molding compound 320 of the side molding compound 300, and an angle between the second molding compound 320 and the frame molding compound 200 of the side molding compound 300 are all obtuse angles instead of right angles.

Referring to fig. 6B, fig. 6B is a top view of an electronic device according to an embodiment of the invention, and the electronic device 40B of fig. 6B has three sides cut and glued, and the above steps are sequentially performed, which is not described herein. In the electronic device 40B of the embodiment, an included angle between the extending direction of the first edge E1 and the extending direction of the second edge E2 is an obtuse angle, an included angle between the extending direction of the second edge E2 and the extending direction of the third edge E3 is an obtuse angle, and an included angle between the extending direction of the first edge E1 and the extending direction of the third edge E3 is a right angle.

Referring to fig. 6C, an embodiment of the present invention can manufacture a plurality of lcd panels with side seals 300 at edges according to the embodiments of the present invention and the manufacturing method of the embodiments of fig. 6A and 6B. For example, in the electronic device 40C of the present embodiment, the side sealing compound 300 may further include a plurality of fourth molding compounds 340, the fourth molding compounds 340 are respectively located at a plurality of fourth edges E4 of the liquid crystal display panel, and adjacent two of the fourth molding compounds 340 have a third butt-joint boundary 420 at the butt-joint position, wherein the extending direction of the third butt-joint boundary 420 is not parallel to the extending direction of any one of the fourth edges E4. In this embodiment, one side of the frame glue 200 is provided with a first, a second and a

third glue

310, 320, 330 on any adjacent three sides, a plurality of fourth glue 340 are respectively arranged on the first, the second and the third edges E1, E2, E3, and the rest edges are provided with a plurality of fourth edges E4, and a third butt-joint boundary 420 is arranged between the adjacent two edges. In this embodiment, the positions and the number of sides of the glue are not limited to those shown in fig. 6C, and the glue may be located at any one side, and a polygonal liquid crystal display panel with the number of sides being 5 or more may be created as needed.

In the non-right-angle embodiment of the present invention, any two edges can be considered as the first edge E1 and the second edge E2, wherein an angle X between the extending direction of the first edge E1 and the extending direction of the second edge is Y, and an angle Y between the extending direction of the butt-joint boundary line and the extending direction of the second edge is Y. The angular relationship between X and Y preferably satisfies the above formula (1), and more preferably satisfies the above formula (2). For example, where the angle of X is 120 °, the angle of Y is preferably 100 ° to 140 °, and most preferably 120 °.

Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto, but may be modified or altered somewhat by persons skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An electronic device, comprising:

a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate; and

the frame glue is positioned at least one edge of the liquid crystal display panel and is clamped between the first substrate and the second substrate; and

the side sealing glue is positioned on at least two adjacent sides of the liquid crystal display panel and covers the side surfaces of the first substrate and the second substrate, the frame glue and the side sealing glue encircle the liquid crystal layer,

the side sealing glue comprises a first glue body and a second glue body, wherein the first glue body and the second glue body are respectively positioned at a first edge and a second edge of two adjacent sides of the liquid crystal display panel, and a first butt joint boundary line is arranged at the butt joint position of the first glue body and the second glue body, and the extending direction of the first butt joint boundary line is not parallel to the extending directions of the first edge and the second edge.

2. The electronic device of claim 1, wherein the first and second glue bodies are in shapes corresponding to each other at the first interface line and are in contact with each other, and the first and second glue bodies are at right angles at the interface.

3. The electronic device of claim 1, wherein an angle between an extending direction of the first edge and an extending direction of the second edge of the liquid crystal display panel is X, an angle between an extending direction of the first butt-joint line and an extending direction of the second edge is Y, and X, Y satisfies the following formula (1):

Y＝[(360°-X)*1/2]±20°……(1)。

4. the electronic device of claim 3, wherein X is 90 ° and Y is 120 ° to 155 °.

5. The electronic device of claim 3, wherein X is 120 ° and Y is 100 ° to 140 °.

6. The electronic device of claim 1, wherein an angle between an extending direction of the first edge and an extending direction of the second edge is an obtuse angle, and an edge of the liquid crystal display panel is composed of the first edge and the second edge where the side seal is located, and an edge where the frame glue is located.

7. The electronic device of claim 1, wherein the side sealing compound further comprises a third compound disposed at a third edge of the liquid crystal display panel and covering side surfaces of the first substrate and the second substrate, wherein the second compound and the third compound have a second interface line at an interface, and an extending direction of the second interface line is not parallel to an extending direction of the second edge and the third edge.

8. The electronic device of claim 7, wherein an angle between the extending direction of the first edge and the extending direction of the second edge is an obtuse angle, an angle between the extending direction of the second edge and the extending direction of the third edge is an obtuse angle, and an angle between the extending direction of the first edge and the extending direction of the third edge is a right angle.

9. The electronic device of claim 1, wherein the side seal further comprises a plurality of fourth colloids, the fourth colloids being respectively located at a plurality of fourth edges of the liquid crystal display panel, adjacent two of the fourth colloids having a third interface line at the interface, wherein an extension direction of the third interface line is not parallel to an extension direction of any of the fourth edges.

10. The electronic device of claim 1, wherein the liquid crystal layer is in direct contact with the side seal.

11. The electronic device of claim 1, wherein the side seal is proximate to a display area in the liquid crystal display panel in a top view of the electronic device.

12. The electronic device of claim 1, further comprising a gate driving circuit and a data driving circuit respectively disposed on two sides of the liquid crystal display panel where the sealant is disposed, and the electronic device comprises a double-sided side seal frame where the gate driving circuit and the data driving circuit are not disposed, wherein the first interface line is located at a corner of the double-sided side seal frame.

13. The electronic device of claim 1, further comprising a gate driving circuit and a data driving circuit disposed together on a single side of the liquid crystal display panel on which the sealant is disposed, and comprising a three-sided side seal frame on which the gate driving circuit and the data driving circuit are not disposed, wherein the first interface line is located at a corner of one of the three-sided side seal frames.

14. The electronic device of claim 13, wherein the first substrate of the liquid crystal display panel includes a plurality of gate lines extending in a transverse direction and a plurality of switching lines extending in a longitudinal direction, each of the plurality of switching lines being electrically connected to one of the plurality of gate lines, the signals of the gate driving circuit being transferred to one of the plurality of gate lines through the plurality of switching lines, respectively.

15. A method for manufacturing an electronic device, the electronic device including a liquid crystal display panel, a sealant, and a side seal, the method comprising:

the first lamination and splitting step is carried out on the liquid crystal display panel along a first direction, the liquid crystal display panel comprises a first substrate, a second substrate, a liquid crystal layer and frame glue, the liquid crystal layer is positioned between the first substrate and the second substrate, the frame glue surrounds the liquid crystal layer, and the liquid crystal display panel forms a first edge exposed out of the liquid crystal layer at the position where the liquid crystal display panel is split;

a first glue sealing step, namely forming a first glue on the first edge, wherein the first glue covers the side surfaces of the first substrate and the second substrate, and the frame glue and the first glue encircle the liquid crystal layer;

a second pressing step of pressing the liquid crystal display panel along a second direction to form a second pre-cut line of a second edge on the liquid crystal display panel, wherein the second edge is adjacent to and intersected with the first edge;

a first glue sealing oblique angle cutting step, wherein an oblique angle incision is formed at the position of the first glue body, which is overlapped with the extending direction of the second edge pressing line;

a second splitting step of splitting the liquid crystal display panel along a second pre-cutting line of the second edge to form a second edge exposing the liquid crystal layer at the split position; and

a second glue sealing step, forming a second glue on the second edge, wherein the second glue covers the side surfaces of the first substrate and the second substrate, and the second glue, the frame glue and the first glue encircle the liquid crystal layer,

the first colloid and the second colloid are provided with a first butt joint boundary line at the butt joint position, and the extending direction of the first butt joint boundary line is not parallel to the extending directions of the first edge and the second edge.

16. The method of manufacturing an electronic device according to claim 15, wherein an angle between an extending direction of the first edge and an extending direction of the second edge of the liquid crystal display panel is X, an angle between an extending direction of the bevel cut and the second pre-cut line of the second edge is Y, and X, Y satisfies the following formula (1):

Y＝[(360°-X)*1/2]±20°……(1)。

17. the method for manufacturing an electronic device according to claim 16, wherein the X is 90 ° and Y is 120 ° to 155 °.

18. The method for manufacturing an electronic device according to claim 16, wherein the X is 120 ° and Y is 100 ° to 140 °.