TW202208951A - Display device and manufacturing method thereof - Google Patents

Abstract

An electronic device includes a liquid crystal display panel, sealant and side end seal. The liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer located between the first substrate and the second substrate. The sealant is located on at least one edge of the liquid crystal display panel and sandwiched between the first substrate and the second substrate. The side end seal is located 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 sealant and the side end seal surround the liquid crystal layer. The side end seal includes a first gel and a second gel. The first gel and the second gel are respectively located at the first edge and the second edge of two adjacent sides of the liquid crystal display panel. The first gel and the second gel have a first connection boundary line that is not parallel to the edge of the first gel and the second gel at the connection line. A method of manufacturing electronic device has also been provided.

Description

Electronic device and method of manufacturing the same

The present invention relates to an electronic device and a manufacturing method thereof, and more particularly, to an electronic device having a sealant and a side sealant.

Public Information Display is a digital electronic device that displays information and data to provide timely information. It can provide a variety of information and replace the traditional bulletin board or billboard. Since the public information display often needs to be produced in a special size, it is difficult for a conventional size liquid crystal panel to meet the needs of users, so the required size is directly cut out of the liquid crystal display panel by a cutting process.

In the cutting process, the LCD panel is cut with cutting equipment and glued. However, when glue is applied to the corners, the phenomenon of corner rounding (Corner Rounding) will occur due to surface tension, resulting in poor appearance and corner rounding. There is a concern that the reliability of the display panel will decrease.

The present invention provides an electronic device, which can improve the poor appearance caused by the cutting process, help to improve the reliability and improve the display quality.

The present invention provides another electronic device, the design of which helps to improve the design margin of the electronic device in response to various sizes and shapes.

The invention provides an electronic device and a manufacturing method, which include a liquid crystal display panel, a sealant and a side sealant. The liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The sealant is located at at least one edge of the liquid crystal display panel and sandwiched between the first substrate and the second substrate. The side sealant is located 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, and the frame sealant and the side sealant surround the liquid crystal layer. The side sealing glue includes a first glue and a second glue, the first glue and the second glue are respectively located on the first edge and the second edge of the adjacent two sides of the liquid crystal display panel, and the first glue and the second glue have a first butt joint at the joint The boundary line, wherein the extension direction of the first butt boundary line is not flat with the extension direction of the first edge and the second edge.

The present invention provides a method for manufacturing the above electronic device, including a first pressing and splitting step, a first sealing step, a second pressing step, a first sealing bevel cutting step, a second splitting step, and a second sealing step. In the first sealing step, the liquid crystal display panel is pressed and split along the first direction, wherein the liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a surrounding The sealant of the liquid crystal layer, and the first edge of the liquid crystal display panel exposed to the liquid crystal layer is formed at the split part. In the first sealing step, a first glue is formed on the first edge, wherein the first glue covers the side surfaces of the first substrate and the second substrate, and the sealant and the first glue surround the liquid crystal layer. In the second pressing step, the liquid crystal display panel is pressed along the second direction to form a second pre-cut line of the second edge on the liquid crystal display panel, and the second edge is adjacent to and intersects with the first edge. In the first sealing bevel cutting step, a bevel cut is formed at the overlapping position of the first glue and the extending direction of the second edge pressing line. In the second splitting step, the liquid crystal display panel is split along the pressing line of the second edge to form a second edge where the liquid crystal layer is exposed at the split, and the second sealing step is to form a second glue on the second edge , the second colloid covers the side surfaces of the first substrate and the second substrate, and the second colloid, the sealant and the first colloid surround the liquid crystal layer. The extension direction of the boundary line is not equal to the extension direction of the first edge and the second edge.

In an embodiment of the present invention, the first colloid and the second colloid are in a shape corresponding to each other at the first butting boundary, and are in contact with each other, and the first colloid and the second colloid form a right angle at the butting point.

In an embodiment of the present invention, the included angle between the extending direction of the first edge and the extending direction of the second edge of the liquid crystal display panel is X, and the included angle between the extending direction of the first docking boundary line and the extending direction of the second edge is Y, X, Y satisfy 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 partial embodiment, X is, for example, 120°, and Y is 100° to 145°.

In an embodiment of the present invention, the included angle between the extending direction of the first edge and the extending direction of the second edge is an obtuse angle, and the edge of the liquid crystal display panel consists of the first edge and the second edge where the side sealant is located, and the sealant composed of the edges.

In an embodiment of the present invention, the side sealant further includes a third colloid, which is located at the third edge of the liquid crystal display panel and covers the side surfaces of the first substrate and the second substrate, and the second colloid and the third colloid are at the butt joint. There is a second abutment boundary line, wherein the extension direction of the second butt boundary line is not parallel to the extension directions of the second edge and the third edge. In some embodiments, the angle between the extension direction of the first edge and the extension direction of the second edge is an obtuse angle, the angle between the extension direction of the second edge and the extension direction of the third edge is an obtuse angle, and the extension of the first edge The included angle between the direction and the extending direction of the third edge is a right angle.

In an embodiment of the present invention, the side sealant further includes a plurality of fourth colloids, the plurality of fourth colloids are respectively located on the plurality of fourth edges of the liquid crystal display panel, and the adjacent two of the plurality of fourth colloids are at the butt joints There is a third abutment boundary, wherein the extending direction of the third abutting boundary is not parallel to the extending direction of any one of the plurality of fourth edges.

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

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

In an embodiment of the present invention, the above-mentioned electronic device further includes a gate driving circuit and a data driving circuit, which are respectively disposed on both sides of the liquid crystal display panel where the sealant is provided, and the electronic device includes no gate driving circuit and The double-side side sealing frame of the data driving circuit, wherein the first butting boundary line is located at the corner of the double-side side sealing frame.

In an embodiment of the present invention, the above-mentioned electronic device further includes a gate driving circuit and a data driving circuit, which are jointly disposed on the single side of the liquid crystal display panel where the sealant is disposed, and the electronic device includes no gate driving circuit and The three-side side-sealing frame of the data driving circuit, wherein the pair of first butt-joint boundaries are located at the corners of the three-side side-sealing frame.

In an embodiment of the present invention, the first substrate of the liquid crystal display panel includes a plurality of gate lines extending laterally and a plurality of transition lines extending longitudinally, each of the plurality of transition lines and one of the plurality of gate lines They are electrically connected, and the signal of the gate driving circuit is respectively transmitted to one of the plurality of gate lines through the plurality of transfer wires.

Based on the above, the present invention provides an electronic device and a manufacturing method thereof. The first and second glue sealing steps and the bevel cutting step are used to form bevel cuts at the overlapping of the extending directions of the first glue and the second edge pressing line. The second colloid can then be applied and the poor appearance caused by the cutting process can be improved. The beveled notch structure of the electronic device of the present invention has an included angle Y between the extending direction of the beveled notch and the second pre-cut line of the second edge. Controlling the included angle Y within an appropriate range can improve the side sealant's ability to have surface tension due to surface tension. Corner rounding phenomenon, which leads to poor appearance, or doubts about the reliability of the finished panel. Its design also helps to improve the design margin of electronic devices in response to various sizes and shapes. margin).

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

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

1A to 1D at the same time, 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 sealant 300 . The liquid crystal layer 130 is located between the first substrate 110 and the second substrate 120 . The first substrate 110 can be a pixel array substrate containing active elements, and the second substrate 120 can be a filter array substrate, but the invention is not limited thereto. Specifically, a pixel array can be formed on the first substrate 110 and includes scan lines and data lines, wherein the scan lines and the data lines intersect, and the pixel array includes a plurality of pixel structures, wherein each pixel structure has active elements and A pixel electrode, wherein the active element is electrically connected to the corresponding scan line, data line and pixel electrode respectively. The second substrate 120 is located on the opposite side of the first substrate 110 , and may include a filter array and a light-shielding pattern layer. The filter array includes a plurality of filter patterns corresponding to the pixel structures respectively. In addition, a liquid crystal layer 130 may be filled between the first substrate 110 and the second substrate 120. The liquid crystal layer 130 may include an alignment film and liquid crystal molecules, and the liquid crystal molecules may appear according to the magnitude of the voltage applied to the corresponding pixel electrodes. Tilt to varying degrees to present the display. As shown in FIGS. 1A and 1B , the sealant 200 is located at at least one edge of the liquid crystal display panel 100 and sandwiched between the first substrate 110 and the second substrate 120 to seal the liquid crystal between the two substrates.

It should be noted that the electronic device of the present invention includes a side sealant 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 sealant 300 is located on at least 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 , and the sealant 200 and the side sealant 300 surround The liquid crystal layer 130 and the side sealant 300 can directly contact the liquid crystal. Specifically, as shown in FIG. 1D , the side sealant 300 of this embodiment includes a first colloid 310 and a second colloid 320 , and the first colloid 310 and the second colloid 320 are respectively located on the first two adjacent sides of the liquid crystal display panel 100 . The edge E1 and the second edge E2, the first colloid 310 and the second colloid 320 have a first abutment boundary line 400 at the butt joint, wherein the extension direction of the first butt boundary line 400 is not parallel to the extension of the first edge E1 and the second edge E2 The direction and the angular relationship between the first abutting boundary line 400 and the first edge E1 and the second edge E2 will be described later.

The components of the sealant 200 can be commonly known colloids, including thermosetting and/or light curing resins, such as epoxy resin, acrylic resin, polyimide (PI) ) or polysiloxane resin/silicone, but not limited thereto. The side sealant 300 is in direct contact with the liquid crystal in the liquid crystal layer 130 , and the material of the side sealant 300 can be selected from a material having high compatibility with liquid crystal. The composition of the side sealant 300 includes materials such as acrylic resin and epoxy resin which are highly compatible with the liquid crystal, so that even if the liquid crystal contacts the side sealant, the liquid crystal will not be polluted. The thickness of the side sealant 300 is about 500 microns, preferably less than 500 microns, so as to prevent problems of visual taste and material waste caused by excessively thick adhesive width.

Please refer to FIG. 1B and FIG. 1C . FIG. 1B and FIG. 1C are cross-sectional views taken along lines aa' and bb' in FIG. 1A , respectively. The liquid crystal layer 130 in FIG. 1B and FIG. 1C includes a display area (Active Area) AA, and is adjacent to the sealant 200 . In this embodiment, the sealant 200 and the side sealant 300 surround the liquid crystal layer 130 and seal the liquid crystal layer between the first substrate 110 and the second substrate 120 . From the top view of the liquid crystal display panel 100 , the edges of the sealant 200 may not be flush with the first substrate 110 and the second substrate 120 . As shown in FIG. 1B , the thickness of the sealant 200 is substantially equal to the thickness between the two substrates. distance, the sealant 200 will not be exposed outside the substrate, and will not cover the side surface of the substrate. In contrast, referring to FIG. 1C , the side sealant 300 covers the side surfaces of the first substrate 110 and the second substrate 120 and is slightly protruded from the side surfaces of the substrates 110 and 120 due to surface tension. The thickness of the side sealant 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 direction of the electronic device 10 , the side sealant 300 is adjacent to the display area AA in the liquid crystal display panel 100 . The display area AA is also located on the first substrate 110 and may include scan lines, data lines and pixel units. Each pixel unit is driven by a scan line and a data line.

Please refer to FIG. 1D . FIG. 1D is an enlarged schematic top view of the corner of the side sealant 300 in FIG. 1A . As shown in FIG. 1D , the first glue 310 and the second glue 320 of the side sealant 300 are located on the first edge E1 and the second edge E2 , and the corner of the first glue 310 and the second glue 320 has a first butting boundary line 400.

FIG. 1E is a schematic top view of an electronic device 20 with double-sided side bezels according to an embodiment of the present invention. Referring to FIG. 1E , the electronic device 20 of this embodiment includes a display area AA and a non-display area NA (Non-Active Area). From an overall perspective, the non-display area NA of the electronic device 20 of this embodiment is generally located in the display area AA. around the display area AA, and a frame composed of four sides is formed in the display area AA. As shown in FIG. 1E, the frame formed by the non-display area NA can be roughly divided into two wider sides and two narrower sides. Side sealing (ie the aforementioned first edge E1 and second edge E2 ), in this way, the electronic device 20 of this embodiment is a double-sided side sealing type, wherein the aforementioned sealant 200 is located on the wide side, for example, and the side The first glue 310 and the second glue 320 of the sealing glue 300 are located on the side sealing edge, for example.

More specifically, the display area AA is adjacent to the two side sealing frames arranged by the side sealing glue. The first substrate in the display area AA may include scan lines, data lines, and pixel units. The display area AA is similar to the display area AA in the above-mentioned embodiment, and details are not repeated here. The non-display area NA includes two wide borders, which include active elements composed of a source driver circuit, a gate driver circuit, and a data driver circuit. The side of the side sealing frame is the first edge E1 and the second edge E2 where the side sealing glue 300 is located. The first glue 310 and the second glue 320 are respectively located at the first edge E1 and the second edge E2, for example, and the first butt boundary line 400 is at the At the corners of the double-sided side sealing frame. In order to maximize the screen size, the side-sealed frame display panel manufactured by the embodiment of the present invention is more and more widely used in various devices, especially for the needs of aesthetics and visual effects, forming the development trend of the side-sealed frame technology. This embodiment can provide a liquid crystal display panel with double-sided side sealing frames, and can realize a large-sized display device, or splicing multiple display panels, and can also increase the appearance aesthetics of the electronic device.

Please refer to FIG. 1F . FIG. 1F is a schematic top view of an electronic device having three-side side bezels according to an embodiment of the present invention. Similar to FIG. 1E , the substrate of the electronic device 30 of this embodiment includes a display area AA and a non-display area. The difference between the area NA and FIG. 1E is that the non-display area NA of the electronic device 30 of this embodiment forms a frame formed by a wide side and three side edges outside the display area AA. In this embodiment, the first butting boundary 400 where the first colloid 310 and the second colloid 320 butt joints may be located at the corner of one of the three side edge seals. The second docking boundary 410 is located at the other corner. This embodiment can provide a liquid crystal display panel with three-side side-sealing borders, and can realize a large-size display device, or splicing multiple display panels, and can also increase the appearance aesthetics of the electronic device.

2A is a schematic flowchart of a manufacturing method of an electronic device according to an embodiment of the present invention, and FIG. 2B is a schematic diagram of a manufacturing method of an electronic device according to an embodiment of the present invention. As shown in FIG. 2 , in this embodiment, the manufacturing method of an electronic device may include a pre-cutting step S200 , a first pressing step S210 , a first splitting step S220 , a first sealing step S230 , and a second pressing step S240 , the first sealing glue bevel cutting step S250, the second splitting step S260, and the second glue sealing step S270.

2A and 2B together, first, the liquid crystal display panel mother sheet 100a includes a first substrate 110, a second substrate 120, a liquid crystal layer 130 between the first substrate 110 and the second substrate 120, and a liquid crystal layer surrounding the liquid crystal layer. Sealant 200. 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 liquid crystal display panel mother sheet 100 a are set according to the user's requirement according to the required size of the liquid crystal display panel 100 . Specifically, the panel finished product (ie, the liquid crystal display panel mother sheet 100 a ) is cut out on the substrate along the first pre-cut line C1 and the second pre-cut line C2 along the first direction D1 and the second direction D2 with conventional cutting equipment. The predetermined size of the cut is used to facilitate the subsequent splitting step. In the pre-cutting step S200, the liquid crystal display panel 100 is not completely cut but only a groove with a depth smaller than the thickness of the substrate is cut at a predetermined position. In this embodiment, for example, cutting is performed using cutting equipment such as a cutter wheel or laser light, but it is not limited thereto. Next, the liquid crystal display panel mother sheet 100a after the pre-cutting step S200 is sent into the laminating and gluing machine M to perform the first laminating step S210 and the first splitting step S220.

The schematic diagram of the first lamination step S210 in FIG. 2B , the liquid crystal display panel mother sheet 100a is firstly subjected to the first lamination step S210 in the lamination and gluing machine M, and the lamination and gluing machine M moves in the vertical direction, which can clamp The reserved area P of the liquid crystal display panel master sheet to be retained is vertically clamped, and the liquid crystal display panel master sheet 100a is pressed in the lamination and gluing machine M along the first pre-cut line C1. Specifically, the first pre-cut line C1 is aligned with the pressing edge of the pressing and gluing machine M, so that the non-reserved area Q that needs to be removed in the steps described later is exposed outside the pressing and gluing machine M. The reserved area P and the non-reserved area Q use the first pre-cut line C1 and the second pre-cut line C2 as the boundary to define the size to be reserved for the liquid crystal display panel 100 . When the pressing and gluing machine M performs the first pressing step S210, the external pressure is pressurized to increase the external pressure, so as to facilitate the subsequent process flow.

Next, please refer to the schematic diagram of the first splitting step S220 in FIG. 2B , after the first pressing step S210 , split the liquid crystal display panel mother sheet 100 a along the first pre-cut line C1 in a folded manner to remove the exposed The non-reserved area Q of the liquid crystal display panel mother sheet 100a outside the glue applicator M is pressed to form the liquid crystal display panel reserved sub-piece 100b. The method of splitting is, for example, an external force acts on the cracks in the first direction D1 cut in the previous pre-cutting step S200, but the present invention is not particularly limited to which splitting method. 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 split section. In addition, since the liquid crystal display panel mother sheet 100a is pressed in the first laminating step S210 , so the internal liquid crystal pressure of the first edge E1 is balanced with the external pressure, preventing the liquid crystal of the liquid crystal layer from flowing out from the cutout.

Referring to the schematic diagram of the first splitting step S230 in FIG. 2B , the first sealing step S230 is performed on the cut edge of the liquid crystal display panel retaining sub-piece 100b, and the side sealing glue 300 is applied on the first edge E1 to form the first glue 310, and the first glue 310 is formed. A glue 310 covers the side surfaces of the first substrate 110 and the second substrate 120 as described above in FIG. 1C , and in the liquid crystal display panel retaining sub-sheet 100 b , the sealant 200 and the first glue 310 surround the liquid crystal layer 130 .

Please refer to the schematic diagram of the second lamination step S240 in FIG. 2B , after the first glue sealing step S230 is completed, the liquid crystal display panel retaining sub-piece 100b may be rotated or moved by an angle to expose the panel non-reserved area Q to the lamination and gluing machine Other than M, the rotation angle is, for example, 90° in this embodiment.

Then, the second pre-cutting line C2 in the second direction D2 is aligned with the pressing edge of the glue coating machine M, and then the second pressing step S240 is performed. Similar to the first pressing step S210 described above, the second pressing step S240 is pressed in the middle. The gluing machine M moves in the vertical direction, vertically clamps the reserved area P of the liquid crystal display panel retaining sub-piece 100b in a clamping manner, and presses the gluing machine M along the second pre-cut line C2 , the non-reserved area Q of the liquid crystal display panel reserved sub-piece 100b is exposed outside the lamination and gluing machine M to form the liquid crystal display panel reserved sub-piece 100b. In this step, the second pre-cut line C2 is used as the boundary for pressing Press together with the glue applicator M.

In particular, before the second splitting step S260, the first glue bevel cutting step S250 is additionally performed on the first glue of the liquid crystal display panel retaining sub-piece 100b. In detail, please refer to FIG. 3 at the same time. FIG. 3 shows the first glue 310 and the second glue 320 in the first sealing glue bevel cutting step S250 and the second sealing glue in the manufacturing method of an electronic device according to an embodiment of the present invention. A schematic top view of the glue step S270. As shown in FIG. 2B and FIG. 3 , in the first sealing glue bevel cutting step S250 , the first glue 310 of the first edge E1 is cut with a blade to cut a bevel cut BC in one direction. The hardness of the blade is lower than that of the first substrate 110 and the second substrate 120 , so that the first substrate 110 and the second substrate 120 do not leave nicks.

Please refer to the schematic diagram of the second splitting 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, and the panel in the non-reserved area Q in the second direction is removed by folding to form a liquid crystal display panel. The display panel retains the sub-sheet 100c, and in this step, the liquid crystal display panel retains the sub-sheet 100c to form a second edge E2 at the position to be split, exposing the liquid crystal layer. In addition, since the liquid crystal display panel mother sheet 100b is pressurized in the second lamination step S240, the internal liquid crystal pressure of the second edge E2 is balanced with the external pressure, preventing the liquid crystal of the liquid crystal layer from flowing out of the cutout.

Please refer to the schematic diagram of the second sealing step S270 in FIG. 2B and FIG. 3 . In the second encapsulation step S270, a side encapsulant is applied on the second edge E2 and the bevel cut BC of the liquid crystal display panel retaining sub-piece 100c to form a second glue 320. The second glue 320 covers the first substrate 110 and the second glue as described above. The side surfaces of the two substrates 120 and the second glue 320, the sealant 200 and the first glue 310 surround the liquid crystal layer 130 to seal the liquid crystal in the liquid crystal layer 130, thus completing the liquid crystal display panel 100 with a predetermined size and shape. The electronic device of this embodiment can be, for example, the liquid crystal electronic device 20 with a double-sided edge bezel shown in FIG. 1E .

In order to more clearly illustrate the method for manufacturing an electronic device according to an embodiment of the present invention, the following describes the method for forming the first colloid 310 and the second colloid 320 more clearly with reference to FIG. 3 . Please refer to FIG. 3 . FIG. 3 is a schematic top view of a manufacturing method of an electronic device according to an embodiment of the present invention. First, the angle between the extension direction of the first edge E1 and the extension direction of the second edge E2 is defined as X, and the angle between the extension direction of the bevel cut BC and the second pre-cut line C2 of the second edge E2 is defined as Y. In this embodiment, the glue width of the first colloid 310 is W1, and the glue width of the second colloid 320 is W2. As described above, in this embodiment, after the first splitting step S220 and the first sealing step S230, the 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, and the In the first sealing bevel cutting step S250, a blade is used to cut the first glue 310 along a predetermined bevel incision BC, and a second splitting step S260 is used to split the non-reserved area of the liquid crystal display panel to obtain a gap at the included angle Y. Next, the second sealing step S270 is performed to form the second glue 320 on the second edge E2 , so that the first glue 310 and the second glue 320 of the liquid crystal display panel 100 form the first butt boundary 400 at the butt joint. If the second glue 320 is directly applied without performing the first bevel cutting step S250, the corners will have a phenomenon of corner rounding due to surface tension, resulting in poor appearance, and the finished The panel has doubts about reliability. The size of the included angle Y between the extending direction of the bevel cut BC and the second pre-cut line of the second edge affects the widths of the first glue width W1 and the second glue width W2, and further affects the ratio of the two.

Please refer to FIG. 4 . FIG. 4 is a graph showing the relationship between the cutting angle and the glue width when the liquid crystal display panel is preset in a quadrilateral shape and the edges are at right angles (ie, the included angle X) is 90°. The horizontal axis is the included angle Y between the extending direction of the bevel cut BC and the second pre-cut line of the second edge, and the vertical axis is the ratio W2/W1 of the second glue width to the first glue width. In the embodiment of the present invention, the included angle and the glue width have the relationship shown in FIG. 4 . More specifically, the predetermined edge angle X and the cutting angle Y of the liquid crystal display panel satisfy the following relationship.

Wherein X, Y preferably satisfy the following formula (1): Y=[(360°-X)*1/2]±20°...(1).

X and Y are more preferably satisfying the following formula (2): Y=(360°-X)*1/2...(2).

In this embodiment, when the included angle X is 90°, the preferable range of Y is 120° to 155°, and the best range is 135°. If the included angle Y is greater than 155°, the glue width W2 when the second colloid is applied will be too narrow, and there will be doubts about reliability. If the included angle Y is less than 120°, the glue width W2 will be too wide when the second colloid is applied, resulting in sharp corners at the corners, which are prone to chipping and poor appearance.

Referring to FIG. 5 , for example, a liquid crystal display panel of a conventional shape such as a rectangle is formed, and the edges thereof are cut at right angles, for example. As shown in FIG. 5 , the electronic device 50 of this embodiment is different from the aforementioned electronic device 10 in that the liquid crystal display panel 200 of this embodiment further includes a third edge E3 and a third colloid 330 , and has a first butting boundary 400 and the second docking boundary 410 , the manufacturing method thereof is similar to the above-mentioned steps, and will not be repeated here. The electronic device manufactured in this embodiment can be, for example, the electronic device 30 with the aforementioned three-sided side-sealing frame.

Referring to FIGS. 6A to 6C , the electronic devices 40A to 40E of other embodiments of the present invention can also be cut at a non-right angle, and the included angle X between the extending direction of the first edge E1 and the extending direction of the second edge E2 can be an acute angle or an obtuse angle, It must be noted that FIGS. 6A to 6C are only schematic diagrams for convenience of showing the positions of the sealant 200 and the side sealant 300 , and are not the actual proportions and top views of the sealant 200 and the side sealant 306 .

Please refer to FIG. 6A. FIG. 6A is a schematic top view of an electronic device according to an embodiment of the present invention, and the above-mentioned first pressing step, first splitting step, first sealing step, second pressing step, In the first sealing bevel cutting step, the second splitting step, and the second sealing step, the angle between the extending direction of the first edge E1 and the extending direction of the second edge E2 is an obtuse angle. The liquid crystal display panel in the electronic device 40A The edges of the 200 include the first edge E1 where the first glue 310 is located, the second edge E2 where the second glue 320 is located, and the edge where the sealant 200 is located. In the top view of the electronic device 40A of this embodiment, the side sealant The angle between the first glue 310 and the second glue 320 of the 300 and the angle between the second glue 320 of the side sealant 300 and the sealant 200 are both obtuse angles rather than right angles.

Please refer to FIG. 6B . FIG. 6B is a schematic top view of an electronic device according to an embodiment of the present invention. The electronic device 40B of FIG. 6B has three sides of cutting and gluing, and the above steps are performed in sequence, and will not be repeated here. In the electronic device 40B of this embodiment, the included angle between the extending direction of the first edge E1 and the extending direction of the second edge E2 is an obtuse angle, and the 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 the 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 , in an embodiment of the present invention, a plurality of liquid crystal display panels with side sealants 300 on the edges can be fabricated according to the above-mentioned embodiments of the present invention in FIGS. 6A and 6B and the manufacturing method thereof. For example, in the electronic device 40C of the present embodiment, the side sealant 300 may further include a plurality of fourth glues 340 , the plurality of fourth glues 340 are respectively located at the plurality of fourth edges E4 of the liquid crystal display panel, and the plurality of fourth glues Adjacent two of 340 have a third abutment boundary line 420 at the butt joint, wherein the extension direction of the third butt boundary line 420 is not parallel to the extension direction of any one of the plurality of fourth edges E4. In this embodiment, one side has the sealant 200, and any adjacent three sides have the first, second and third colloids 310, 320, 330, which are located on the first, second and third edges E1, E2, E3 respectively, The remaining edges have a plurality of fourth colloids 340 and are located on the plurality of fourth edges E4, and the adjacent two have a third butting boundary 420 at the butting position. The present embodiment is not limited to the position and number of sides of the colloid shown in FIG. 6C , the colloid can be located at any edge, and a polygonal liquid crystal display panel with side lengths of 5 or more can also be created as required.

Regarding the above non-right-angle embodiments of the present invention, any two edges can be regarded as the first edge E1 and the second edge E2 described above, wherein the angle X between the extending direction of the first edge E1 and the extending direction of the second edge, The included angle between the extending direction of the butting boundary line between the two and the extending direction of the second edge is Y. Among them, the angular relationship between X and Y preferably satisfies the above-mentioned formula (1), and more preferably satisfies the above-mentioned formula (2). For example, if the angle of X is 120°, the angle of Y is preferably 100° to 140°, and the best is 120°.

Although the present invention has been disclosed above by the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the scope of the appended patent application.

10, 20, 30, 40A, 40B, 40C, 40D, 40E, 50: Electronic devices 100: LCD panel 100a: Master 100b, 100c: sub-pieces 110: The first substrate 120: Second substrate 130: liquid crystal layer 200: Frame glue 300: side sealant 310: First Colloid 320: Second colloid 330: Third colloid 340: Fourth Colloid 400: The first docking boundary 410: Second docking boundary 420: The third docking boundary 510, 512: bilateral side sealing frame 610, 612, 614: Three-sided side sealing frame S200: Pre-cutting step S210: the first pressing step S220: First split step S230: The first sealing step S240: the second pressing step S250: The first sealant bevel cutting step S260: Second split step S270: Second sealing step 6A: Liquid crystal display panel cut twice 6B: LCD panel cut three times 6C: Cutting a limited number of LCD panels E1: First edge E2: Second edge E3: Third Edge E4: Fourth Edge W1: first glue width W2: Second glue width W3: The third glue width P: reserved area Q: Non-reserved area M: Press-fit glue applicator X: the angle between the extension direction of the first edge and the extension direction of the second edge Y: the angle between the extension direction of the bevel cut and the second pre-cut line of the second edge AA: display area BC: Bevel Cut NA: non-display area C1: First pre-cut line C2: Second pre-cut line D1: first direction D2: Second direction

FIG. 1A is a schematic perspective view of an electronic device according to an embodiment of the present invention. Fig. 1B is a schematic cross-sectional view along line aa' of Fig. 1A. Fig. 1C is a schematic cross-sectional view along line bb' of Fig. 1A. FIG. 1D is an enlarged schematic top view of the corner of the side seal in FIG. 1A . FIG. 1E is a schematic top view of an electronic device with a double-sided side sealing frame according to an embodiment of the present invention. FIG. 1F is a schematic top view of an electronic device with a three-sided side sealing frame according to an embodiment of the present invention. FIG. 2A is a flowchart of a method for manufacturing an electronic device according to an embodiment of the present invention. FIG. 2B is a schematic diagram of a manufacturing method of an electronic device according to an embodiment of the present invention. 3 is a schematic top view of a method for manufacturing an electronic device according to an embodiment of the present invention. FIG. 4 is a graph showing the relationship between the glue width and the incision angle according to an embodiment of the present invention. FIG. 5 is a schematic top view of an electronic device according to an embodiment of the present invention. 6A-6C are schematic top views of an electronic device according to an embodiment of the present invention.

10: Electronics

100: LCD panel

110: The first substrate

120: Second substrate

200: Frame glue

300: side sealant

310: First Colloid

320: Second colloid

400: The first docking boundary

E1: First edge

E2: Second edge

Claims (18)

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 a sealant, located at at least one edge of the liquid crystal display panel, and sandwiched between the first substrate and the second substrate; and a side sealant is located 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 sealant and the side sealant surround the liquid crystal layer, The side sealant comprises a first colloid and a second colloid, the first colloid and the second colloid are respectively located at the first edge and the second edge of the adjacent two sides of the liquid crystal display panel, the first colloid and the The second colloid has a first abutment boundary line at the butt joint, wherein the extension direction of the first butt boundary line is not parallel to the extension directions of the first edge and the second edge. The electronic device according to claim 1, wherein the first colloid and the second colloid have shapes corresponding to each other at the first docking boundary, and are in contact with each other, and the first colloid and the second colloid are in contact with each other. The colloid is at a right angle at the butt joint. The electronic device according to claim 1, wherein an angle between the extending direction of the first edge and the extending direction of the second edge of the liquid crystal display panel is X, and the extending direction of the first docking boundary line is equal to The included angle between the extending directions of the second edge is Y, and X and Y satisfy the following formula (1): Y=[(360°-X)*1/2]±20°...(1). The electronic device of claim 3, wherein the X is 90°, and the Y is 120° to 155°. The electronic device of claim 3, wherein the X is 120°, and the Y is 100° to 145°. The electronic device according to claim 1, wherein the included angle between the extending direction of the first edge and the extending direction of the second edge is an obtuse angle, and the edge of the liquid crystal display panel is formed by the first edge where the side sealant is located. An edge is composed of the second edge and the edge where the sealant is located. The electronic device according to claim 1, wherein the side sealant further comprises a third colloid, which is located at the third edge of the liquid crystal display panel and covers the side surfaces of the first substrate and the second substrate, The second colloid and the third colloid have a second abutment boundary line at the butt joint, wherein the extension direction of the second butt boundary line is not parallel to the extension directions of the second edge and the third edge. The electronic device according to claim 7, wherein an included angle between the extending direction of the first edge and the extending direction of the second edge is an obtuse angle, and the extending direction of the second edge and the extending direction of the third edge are at an obtuse angle. The included angle between the directions is an obtuse angle, and the included angle between the extending direction of the first edge and the extending direction of the third edge is a right angle. The electronic device according to claim 1, wherein the side sealant further comprises a plurality of fourth colloids, the plurality of fourth colloids are respectively located on a plurality of fourth edges of the liquid crystal display panel, and the plurality of fourth colloids are respectively located. Adjacent two of the four colloids have a third abutment boundary line at the butt joint, wherein the extension direction of the third butt boundary line is not parallel to the extension direction of any one of the plurality of fourth edges. The electronic device of claim 1, wherein the liquid crystal layer is in direct contact with the side sealant. The electronic device according to claim 1, wherein in a plan view of the electronic device, the side sealant is adjacent to the display area in the liquid crystal display panel. The electronic device according to claim 1, further comprising a gate driving circuit and a data driving circuit, which are respectively disposed on both sides of the liquid crystal display panel on which the sealant is provided, and the electronic device includes a gate driver circuit without the sealant. The gate driving circuit and the double side sealing frame of the data driving circuit, wherein the first connecting boundary line is located at the corner of the double side sealing frame. The electronic device according to claim 1, further comprising a gate driving circuit and a data driving circuit, which are jointly disposed on a single side of the liquid crystal display panel on which the sealant is disposed, and the electronic device includes a gate driver circuit without the sealant. The gate driving circuit and the data driving circuit have three side sealing frames, wherein the first connecting boundary line is located at a corner of one of the three side sealing frames. The electronic device according to claim 1, wherein the first substrate of the liquid crystal display panel comprises a plurality of gate lines extending laterally and a plurality of switching wires extending vertically, and the plurality of switching wires are respectively connected with One of the plurality of gate lines is electrically connected, and the signal of the gate driving circuit is respectively transmitted to one of the plurality of gate lines through the plurality of transfer lines. A manufacturing method of an electronic device, the electronic device includes a liquid crystal display panel, a sealant and a side sealant, and the manufacturing method of the electronic device includes: In the first step of pressing and splitting, the liquid crystal display panel is pressed and split along a first direction, and the liquid crystal display panel includes a first substrate, a second substrate, and a first substrate and a second substrate located on the first substrate and the second substrate. a liquid crystal layer between and a sealant surrounding the liquid crystal layer, the liquid crystal display panel is formed at the split part to expose the first edge of the liquid crystal layer; In the first sealing step, a first glue is formed on the first edge, the first glue covers the side surfaces of the first substrate and the second substrate, and the sealant and the first glue surround the liquid crystal layer; In the second pressing step, the liquid crystal display panel is pressed in a second direction to form a second pre-cut line of a second edge on the liquid crystal display panel, the second edge and the first edge adjacent and intersecting; In the first sealing bevel cutting step, a bevel incision is formed at the overlapping position of the first glue and the extending direction of the second edge pressing line; a second splitting step, splitting the liquid crystal display panel along a second pre-cut line of the second edge, so as to form a second edge exposing the liquid crystal layer at the split position; and In the second sealing step, a second glue is formed on the second edge, the second glue covers the side surfaces of the first substrate and the second substrate, and the second glue, the sealant and the the first colloid surrounds the liquid crystal layer, The first colloid and the second colloid have a first butting boundary line at the butting portion, and the extending direction of the first butting boundary line is not parallel to the extending directions of the first edge and the second edge. The manufacturing method of an electronic device according to claim 15, wherein the angle between the extending direction of the first edge of the liquid crystal display panel and the extending direction of the second edge is X, and the extension of the bevel cut The included angle between the direction and the second pre-cut line of the second edge is Y, and X and Y satisfy the following formula (1): Y=[(360°-X)*1/2]±20°...(1). The manufacturing method of an electronic device according to claim 15, wherein the X is 90°, and the Y is 120° to 155°. The manufacturing method of an electronic device according to claim 15, wherein the X is 120°, and the Y is 100° to 145°.

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