CN209911727U - Frame glue structure - Google Patents
Frame glue structure Download PDFInfo
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- CN209911727U CN209911727U CN201920774659.0U CN201920774659U CN209911727U CN 209911727 U CN209911727 U CN 209911727U CN 201920774659 U CN201920774659 U CN 201920774659U CN 209911727 U CN209911727 U CN 209911727U
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Abstract
The utility model discloses a frame glue structure sets up between first base plate and second base plate. The frame glue structure comprises a frame glue body and a retaining wall structure. The frame glue body is provided with at least one notch and surrounds at least three edges of the glue spreading area. The retaining wall structure is arranged on one side of the notch of the frame colloid and extends along at least one side of the colloid spreading area. A diversion trench is defined between the frame glue and the retaining wall structure.
Description
Technical Field
The utility model relates to a frame is glued to be constructed, and especially relates to one kind and is used for frame to glue structure in the display panel laminating preparation technology.
Background
In modern life, the application of display panels is becoming widespread, ranging from common televisions, computers, mobile phones to outdoor signage, Augmented Reality (AR)/Virtual Reality (VR) devices, from flat panel display to curved surface display.
In the prior art, Liquid optical adhesive (LOCA), also called water adhesive, has been widely used for attaching panels of various sizes. Liquid Optical Cement (LOCA) can be used between the touch panel and the display panel or between the cover glass and the touch panel, so that the touch panel and the display panel are uniformly attached to each other, and the quality of the appearance is ensured.
Referring to fig. 1A and 1B, fig. 1A is a top view of a conventional display panel in a bonding process, and fig. 1B is a schematic cross-sectional view along a line a' -a ″ of fig. 1A. In the aspect of glue lamination between Cover Glass (CG) and a display panel of the current display, Liquid Optical Cement (LOCA)108 is poured after the Cover Glass (CG)104 and a Liquid crystal display module (LCM)102 are fixed by frame glue 106, and a re-curing lamination mode can overcome the lamination difficulty caused by irregular lamination surfaces, but bubbles 110 and glue overflow 108a are easy to occur when sealing glue 112 is used at an exhaust port, and the problem of uneven glue between the Cover Glass (CG)104 and the Liquid crystal display module (LCM)102 caused by glue filling pressure is solved, so that the appearance is poor. In non-planar 3D applications, this phenomenon is more pronounced and tends to affect the viewing area.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frame is glued structure to bubble appears in solving current laminating preparation technology, overflow glues and because of the inhomogeneous problem of glue that encapsulating pressure caused.
In order to achieve the above object, the utility model discloses a frame is glued structure includes: the frame glue body is arranged between the first substrate and the second substrate and surrounds at least three edges of the glue spreading area, wherein the frame glue body is provided with at least one notch; and the retaining wall structure is arranged on one side of the notch and extends along at least one edge of the glue spreading area, wherein a diversion trench is defined between the retaining wall structure and the glue body.
In an embodiment of the present invention, the notch is disposed on the center line of the glue spreading area.
In an embodiment of the present invention, the retaining wall structure is disposed outside the frame colloid.
In an embodiment of the present invention, the glue frame includes a pair of notches, and the notches are correspondingly disposed on two opposite sides of the glue spreading area.
In an embodiment of the present invention, the retaining wall structure includes a pair of strip-shaped retaining walls correspondingly disposed outside the gap of the frame colloid.
In an embodiment of the present invention, the retaining wall structure is disposed inside the frame colloid.
In an embodiment of the present invention, the retaining wall structure includes a strip-shaped retaining wall disposed inside the notch of the frame colloid.
In an embodiment of the present invention, the retaining wall structure extends along three sides of the glue spreading area, and the diversion trench is defined between the retaining wall structure and two opposite sides of the glue spreading area.
In an embodiment of the present invention, the guiding groove defines at least an exhaust opening at a position away from the notch, and the exhaust opening is adjacent to a corner of the first substrate.
In an embodiment of the present invention, at least one of the first substrate and the second substrate is a curved surface.
In an embodiment of the present invention, the first substrate and the second substrate are a liquid crystal display module (LCM) and a Cover Glass (CG), respectively.
In an embodiment of the present invention, the first substrate and the second substrate are a display panel and a touch panel, respectively.
In an embodiment of the present invention, the width of the gap is about 2mm to 10 mm.
In an embodiment of the present invention, the width of the diversion trench is about between 1mm to 5 mm.
In an embodiment of the present invention, the liquid optical adhesive (LOCA) is disposed in the sealant structure.
In an embodiment of the present invention, the seal glue is disposed in the diversion trench.
The utility model has the advantages of, the embodiment provides the guiding gutter in the frame is glued the structure, has not only prolonged exhaust passage, still can avoid glue to spill over. In addition, after standing, the problem of uneven colloid caused by glue filling can be avoided by leveling the colloid. Simultaneously, the guiding gutter can get rid of the guiding gutter with terminal encapsulating bubble, and the guiding gutter is located under the china ink district, can not cause the influence to the visual district, and the effect is more showing in the 3D curved surface to this kind of design.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, several embodiments accompanied with figures are described in detail below.
Drawings
The embodiments of the present invention will be understood more fully from the detailed description given below and from the accompanying drawings. It is emphasized that, in accordance with industry standard practice, many of the features (features) are not drawn to scale. In fact, the dimensions of the various elements may be arbitrarily expanded or reduced for clarity of discussion.
Fig. 1A and 1B are schematic top and cross-sectional views of a conventional display panel in a lamination process;
fig. 2 is a perspective view of the frame adhesive structure and the glue spreading area drawn on the first substrate and the second substrate according to the embodiment of the present invention;
fig. 3A and 3B are a top view and a cross-sectional view of a frame adhesive structure drawn on a first substrate according to a first embodiment of the present invention;
fig. 4A and 4B are a top view and a cross-sectional view of a frame adhesive structure drawn on a first substrate according to a second embodiment of the present invention;
fig. 5A and 5B are a top view and a cross-sectional view of a frame adhesive structure drawn on a first substrate according to a third embodiment of the present invention;
FIGS. 6A and 6B are schematic diagrams illustrating a process of pouring Liquid Optical Cement (LOCA) in FIG. 4A;
fig. 7A and 7B are a top view and a cross-sectional view of the embodiment of the present invention.
Description of the symbols
102-a liquid crystal display module;
104-cover glass;
106 portions of frame glue;
108-liquid optical cement;
108 a-glue overflow;
110-bubbles;
112-sealing glue;
202-a first substrate;
204 to a second substrate;
210-glue spreading area;
220-frame glue structure;
222-frame colloid;
222 a-notch;
224-retaining wall structure;
2241-strip retaining wall;
226-guide groove;
226a to an exhaust port;
230-ink layer;
240-liquid optical cement;
d-gap (width);
w-width.
Detailed Description
Various embodiments or examples are provided below in which reference to a first feature being formed on a second feature in the description may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features such that the first and second features are not in direct contact. Additionally, embodiments of the present invention may use repeated reference numerals in many instances. These repetitions are merely for simplicity and clarity and do not represent a particular relationship between the various embodiments and/or configurations discussed.
Also, spatially relative terms, such as "above," "below," "… … above," "… … below," and encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. When the device is rotated to other orientations (rotated 90 degrees or otherwise), the spatially relative descriptors used herein should be interpreted as such with respect to the rotated orientation.
As used herein, the terms "about", "approximately", "substantial" and "approximately" generally mean within 20%, preferably within 10%, and more preferably within 5%, or within 3%, or within 2%, or within 1%, or within 0.5% of a given value or range. It should be noted that the quantities provided in the specification are approximate quantities, i.e., the meanings of "about", "about" and "about" can be implied without specifying "about", "about" and "about".
The embodiment of the utility model provides a frame glues structure with guiding gutter to solve originally and cause the colloid inhomogeneous in the gassing after sealing, overflow glue etc. and then lead to the bad problem of outward appearance. The frame glue structure is particularly suitable for non-planar 3D lamination.
First, as shown in fig. 2, to provide the sealant structure 220 in the bonding process, the first substrate 202 and the second substrate 204 are adhered and fixed, and a liquid optical adhesive (LOCA) (not shown) filled subsequently is prevented from overflowing. The first substrate 202 and the second substrate 204 may be made of glass, plastic, metal, or the like, and the display device may be a Cover Glass (CG), a touch panel, a liquid crystal display module (LCM), or the like, which may be combined with each other according to circumstances. For example, in one embodiment, the first substrate 202 is a display panel and the second substrate 204 is a touch panel. In another embodiment, the first substrate 202 is a liquid crystal display module (LCM) and the second substrate 204 is a Cover Glass (CG).
With reference to fig. 2, the first substrate 202 includes a sealant spreading region 210 and a sealant structure 220, wherein the sealant spreading region 210 serves as a filling and flowing region of a liquid optical adhesive (LOCA) (not shown) and the sealant structure 220 serves as a region for preventing the liquid optical adhesive (LOCA) from overflowing. The sealant structure 220 is disposed substantially around the inner edge of the first substrate 202. In an embodiment, the area of the frame glue spreading in the frame glue structure 220 should be larger than the area of the functional region of the first substrate 202, so as to reduce the influence of the structural glue on the functions of the first substrate 202. In an embodiment, the area of the spread sealant in the sealant structure 220 at least occupies more than 80% of the area of the first substrate 202, so as to increase the bonding area between the first substrate 202 and the second substrate 204.
Fig. 3A and 3B show the frame sealant structure according to the first embodiment of the present invention. Fig. 3A is a top view of the sealant structure 220 on the first substrate 202. The sealant structure 220 surrounds the edge of the first substrate 202 and the sealant spreading region 210. The sealant structure 220 may include a sealant 222 and a retaining wall structure 224. In the first embodiment of the present invention, the sealant 222 only surrounds three sides of the sealant spreading region 210, and thus has a notch 222a facing the fourth side. The retaining wall structure 224 is composed of three strip-shaped retaining walls 2241, wherein one strip-shaped retaining wall 2241 is located outside the notch 222a in the frame sealant 222, and the other two strip-shaped retaining walls 2241 are respectively connected to two ends of the strip-shaped retaining wall 2241 and are disposed in parallel outside the frame sealant 222, and a flow guide groove 226 is defined between the other two strip-shaped retaining walls 2241 and the frame sealant 222. As shown in the figure, the sealant 222 and the retaining wall structure 224 do not intersect. In addition, the gap d between the two ends of the sealant 222 and the retaining wall structure 224 is between 2mm to 10mm, and the gap in this interval is enough for the excess optical liquid sealant to flow out and define a flow guiding groove 226 with a buffering function.
With reference to fig. 3A, two flow guiding grooves 226 are defined between the sealant 222 and the retaining wall structure 224, and are located on two opposite sides of the sealant spreading region 210, so as to extend the exhaust channel and serve as a buffer for sealant overflow. In this embodiment, the air vent 226a is defined by the guiding groove 226 away from the notch 222a, and the air vent 226a is adjacent to a corner of the first substrate 202 to facilitate the discharge of air bubbles.
Referring to fig. 3B, fig. 3B is a schematic cross-sectional view taken along line a' -a ″ of fig. 3A. A frame adhesive 222 and a retaining wall structure 224 are disposed on the first substrate 202, wherein the first substrate 202 is a plane, and the height of the frame adhesive 222 is approximately the same as that of the retaining wall structure 224. A flow guiding groove 226 is defined between the sealant 222 and the retaining wall structure 224, and the flow guiding groove 226 not only can prevent liquid optical adhesive (LOCA) (not shown) from overflowing, but also can prevent sealant-filling bubbles from accumulating in the sealant-spreading region 210.
Fig. 4A and 4B show a frame adhesive structure according to a second embodiment of the present invention. Fig. 4A is a top view of the sealant structure 220 on the first substrate 202. The sealant structure 220 surrounds the edge of the first substrate 202 and the sealant spreading region 210. The sealant structure 220 may include a sealant 222 and a retaining wall structure 224. In the embodiment of the present invention, the sealant 222 surrounds the four sides of the sealant spreading region 210 and has a gap 222 a. The retaining wall structure 224 is a strip-shaped retaining wall 2241, which is located inside the notch 222a of the frame sealant 222, and the frame sealant 222 and the retaining wall structure 224 are not intersected. In one embodiment, the notch 222a is disposed on a center line (not shown) of the tape dispensing region 210. The gap d between the frame glue 222 and the two ends of the strip-shaped retaining wall in the retaining wall structure 224 is about 2mm to 10mm, and the gap in the interval is enough for the excess optical liquid glue to flow out and define a flow guiding groove 226 with a buffering function.
Referring to fig. 4A and fig. 4B, fig. 4B is a schematic cross-sectional view taken along a line a' -a ″ of fig. 4A. A guiding groove 226 is defined between the frame colloid 222 and the retaining wall structure 224, and is located inside the frame colloid 222, so as to extend the exhaust channel and also serve as a buffer for glue overflow. In this embodiment, the notch 222a also serves as an air outlet 226a, and the air outlet 226a is located at the highest point of the sealant structure 220, so as to facilitate the discharge of air bubbles. Since the first substrate 202 is convex in this embodiment, the exhaust port 226a is located at the midpoint and at the highest point when the first substrate 202 is laid flat.
Fig. 5A and 5B show a frame adhesive structure according to a second embodiment of the present invention. Fig. 5A is a top view of the sealant structure 220 on the first substrate 202. The sealant structure 220 surrounds the edge of the first substrate 202 and the sealant spreading region 210. The sealant structure 220 may include a sealant 222 and a retaining wall structure 224. In the embodiment of the present invention, the sealant 222 surrounds the four sides of the sealant spreading region 210 and has a pair of notches 222 a. The retaining wall structure 224 is a pair of strip-shaped retaining walls 2241, which are located outside the notch 222a of the frame colloid 222 and are disposed in parallel. As shown in the figure, the sealant 222 and the retaining wall structure 224 do not intersect. The notches 222a are disposed on a center line (not shown) of the glue spreading area 210 and are correspondingly disposed on two opposite sides of the glue spreading area 210. The width d of the gap 222a is between about 2mm and 10mm, and the gap 222a in the width interval is sufficient to allow the excess optical liquid glue (not shown) to flow out and define a guiding groove 226 with a buffer function.
With continued reference to FIG. 5A, FIG. 5B is a schematic cross-sectional view taken along line A' -A "of FIG. 5A. Two flow guiding grooves 226 are defined between the frame colloid 222 and the retaining wall structure 224, and are located outside the frame colloid 222, so as to extend the exhaust channel and also serve as a buffer for glue overflow. In the embodiment, an air outlet 226a is defined at a position of the flow guide groove 226 away from the notch 222a, and the air outlet 226a is located at the highest point of the sealant structure 220, which is helpful for discharging air bubbles. Since the first substrate 202 may have a concave surface in this embodiment, the exhaust opening 226a is adjacent to a corner of the first substrate 202.
After the sealant structure 220 is disposed on the first substrate 202, the second substrate 204 may be assembled, a liquid optical adhesive (LOCA) (not shown) is injected from a position away from the exhaust port 226a, so that the sealant structure is filled with the liquid optical adhesive (LOCA), the first substrate 202 and the second substrate 204 are attached to each other, and finally, a sealing adhesive (not shown) is selected to be disposed in the guiding groove 226 according to the type of the injected liquid optical adhesive (LOCA). For example, if the injected liquid optical adhesive (LOCA) has high fluidity, the sealant is used as the sealing adhesive; if the liquidity of the injected Liquid Optical Cement (LOCA) is low, the Liquid Optical Cement (LOCA) is used as the sealing cement.
For example, referring to fig. 6A, after the sealant structure 222 on the first substrate 202 is used in the second embodiment (as shown in fig. 4A to 4B), the first substrate 202 and the second substrate 204 are assembled, and then a liquid optical adhesive (LOCA)240 is poured from the opposite side of the notch 222 a. In this embodiment, the liquid optical adhesive (LOCA)240 gradually fills the glue spreading region 210 from the distal end of the gap 222a until the excess liquid optical adhesive (LOCA)240 is guided into the guiding groove 226 and discharged toward the gap 222a, as shown in fig. 6B.
In addition, referring back to fig. 3A to 5A, the width w of the guiding trench 226 in the sealant structure 220 is between 1mm and 5mm, and less than 1mm may reduce the buffering effect of the guiding trench, and easily overflow the sealant structure, while more than 5mm may make the sealant spreading region 210 too small, so that the bonding area is reduced.
In some embodiments, an ink layer (not shown) may be further disposed on the second substrate 204, such that the ink layer is interposed between the sealant structure 220 and the second substrate 204. The ink layer can prevent the frame adhesive structure 220 from being exposed, and can not affect the visible area.
As shown in fig. 7A and 7B, in the second embodiment (as shown in fig. 4A to 4B), after the sealant structure 220 is disposed on the first substrate 202 and the ink layer 230 is disposed on the second substrate 204, the first substrate 202 and the second substrate 204 are paired, so that the sealant structure 220 and the ink layer 230 are interposed between the first substrate 202 and the second substrate 204. Fig. 7A is a top view of the second substrate 204, and since fig. 7A is based on fig. 4A and further includes an ink layer 230, the same parts as fig. 4A are not repeated herein.
Referring to fig. 7A, a partial perspective view of the lower portion of the ink layer 230 shows the sealant structure 220 under the ink layer 230, as shown in fig. 4A. The ink layer 230 on the sealant structure 220 can completely cover the sealant structure 220 without affecting the visible area. The Liquid Optical Cement (LOCA)240 located in the glue spreading region 210 bonds the first substrate 202 and the second substrate 204. Since the first substrate 202 and the second substrate 204 are a liquid crystal display module (LCM) and a Cover Glass (CG), respectively, in this embodiment, the configuration under the second substrate 204 can be seen from the top view.
Referring to fig. 7B, fig. 7B is a schematic cross-sectional view taken along line a' -a ″ of fig. 7A. In this embodiment, the first substrate 202 and the second substrate 204 are convex, and the heights of the sealant 222 and the ink layer 230 are about the same, but not limited thereto. The purpose of the ink layer 230 is to shield the sealant structure 220 below, and the boundary of the ink layer 230 may be exactly the same as the boundary of the sealant structure 220, or extend toward the sealant spreading region 210, so as not to affect the visible region. In addition, since the sealant structure is based on fig. 4A and 4B, the process of injecting the liquid optical adhesive (LOCA)240 is the same as that shown in fig. 6A and 6B, and is not repeated herein.
The embodiment of the utility model provides an in the frame is glued the structure, contains the frame colloid that has the breach and in the barricade structure of one side of breach, and can define out the guiding gutter between frame colloid and the barricade structure, can prolong exhaust passage, also regard as the buffering of excessive gluey, its effect is more obvious in the 3D device, more can improve the laminating yield.
The components of several embodiments are summarized above so that those skilled in the art can more easily understand the aspects of the embodiments of the present invention. Those skilled in the art should appreciate that they can readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present invention should be subject to the definitions of the appended claims.
Claims (16)
1. A frame glue structure is characterized by comprising:
the frame glue body is arranged between the first substrate and the second substrate, and surrounds at least three edges of a glue spreading area, wherein the frame glue body is provided with at least one notch; and
and the retaining wall structure is arranged on one side of the notch and extends along at least one edge of the glue spreading area, wherein a diversion trench is defined between the retaining wall structure and the glue body.
2. The sealant structure of claim 1, wherein the notch is disposed on a center line of the sealant spreading region.
3. The sealant structure according to claim 1, wherein the retaining wall structure is disposed outside the sealant body.
4. The sealant structure of claim 1, wherein the sealant body includes a pair of notches correspondingly disposed on two opposite sides of the sealant spreading region.
5. The sealant structure according to claim 4, wherein the retaining wall structure comprises a pair of strip-shaped retaining walls disposed on outer sides of the notches of the sealant.
6. The sealant structure according to claim 1, wherein the retaining wall structure is disposed inside the sealant body.
7. The sealant structure according to claim 1, wherein the retaining wall structure comprises a strip-shaped retaining wall disposed inside the notch of the sealant body.
8. The sealant structure according to claim 1, wherein the retaining wall structure extends along three sides of the sealant spreading region, and the flow guiding groove is defined between two opposite sides of the sealant spreading region and the retaining wall structure.
9. The sealant structure of claim 1, wherein the guiding groove defines at least one air outlet away from the notch, and the air outlet is adjacent to a corner of the first substrate.
10. The sealant structure of claim 1, wherein at least one of the first substrate and the second substrate is a curved surface.
11. The sealant structure of claim 1, wherein the first substrate and the second substrate are a liquid crystal display module and a cover glass, respectively.
12. The sealant structure of claim 1, wherein the first substrate and the second substrate are a display panel and a touch panel, respectively.
13. The sealant structure of claim 1, wherein the gap has a width of 2mm to 10 mm.
14. The sealant structure of claim 1, wherein the width of the guiding groove is between 1mm and 5 mm.
15. The sealant structure of claim 1, wherein the sealant structure further comprises a liquid optical sealant disposed in the sealant structure.
16. The sealant structure according to claim 1, wherein the sealant structure further comprises a sealing sealant disposed in the guiding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920774659.0U CN209911727U (en) | 2019-05-27 | 2019-05-27 | Frame glue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920774659.0U CN209911727U (en) | 2019-05-27 | 2019-05-27 | Frame glue structure |
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| Publication Number | Publication Date |
|---|---|
| CN209911727U true CN209911727U (en) | 2020-01-07 |
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|---|---|---|---|
| CN201920774659.0U Active CN209911727U (en) | 2019-05-27 | 2019-05-27 | Frame glue structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261025A (en) * | 2020-01-19 | 2020-06-09 | 业成科技（成都）有限公司 | Display device |
| CN113552961A (en) * | 2020-04-23 | 2021-10-26 | 英业达科技有限公司 | Touch control display device |
| CN114488587A (en) * | 2022-02-21 | 2022-05-13 | 越达光电科技(浙江)有限公司 | Glue pouring method |
-
2019
- 2019-05-27 CN CN201920774659.0U patent/CN209911727U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261025A (en) * | 2020-01-19 | 2020-06-09 | 业成科技（成都）有限公司 | Display device |
| CN113552961A (en) * | 2020-04-23 | 2021-10-26 | 英业达科技有限公司 | Touch control display device |
| CN114488587A (en) * | 2022-02-21 | 2022-05-13 | 越达光电科技(浙江)有限公司 | Glue pouring method |
| CN114488587B (en) * | 2022-02-21 | 2023-04-21 | 越达光电科技(浙江)有限公司 | Glue filling method |
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