TW201818212A - Three dimensions curvature panel, and three dimensions curvature touching panel and three dimensions curvature touching display panel adopting the same - Google Patents

Abstract

A three dimensions curvature panel includes a cover lens and a protective film. The cover lens has a three dimension curvature surface. The three dimension curvature surface has a height variation varying from border to the center region of the cover lens. The protective film having trim lines is attached to a surface of the cover lens, in which the trim lines are extended from the border to the central region individually.

Description

Three-dimensional curved panel, three-dimensional curved touch panel and three-dimensional curved touch display panel using the same

The invention relates to a three-dimensional curved panel, in particular to a protective film for a three-dimensional curved panel.

In conventional smart devices, a transparent cover layer is usually provided on the touch module or the touch display module to protect the touch module or the touch display module that is relatively fragile or easily affected by external influences. However, with the popularity of smart devices, users ’requirements for the appearance design of smart devices have also increased, such as smart devices with transparent cover layers with a three-dimensional curved shape. The design of the three-dimensional textured appearance also came into being. In addition to providing a smart device with a beautiful appearance, a transparent cover with a three-dimensional curved shape can also be used to enlarge the display part. In the design of some smart devices, It can further reduce the range of the bezel, or even make the smart device be borderless.

However, when the protective layer is adhered to transparent layers having different curved shapes to form a transparent cover layer, the adhesion of the transparent layer and the protective layer may not be tight enough, especially where the curvature of the transparent layer easily occurs. As a result, a gap may be formed between the transparent layer and the protective layer, so that foreign objects from outside can easily enter the gap and accumulate in the gap, or even enter other parts of the smart device, such as a camera module. In addition, the gap formed during the bonding process may also form bubbles due to the thermal expansion and contraction of the transparent layer and the protective layer after sealing, which prevents the protective layer from adhering to the transparent layer, or because the protective layer cannot contact the transparent layer. Adhesion and rebound may further cause the protective layer to peel from the transparent layer.

It can be seen that the above existing architecture obviously still has inconveniences and defects, and needs to be further improved. In order to solve the above-mentioned problems, the related fields have made every effort to find a solution, but for a long time, no applicable method has been developed. Therefore, how to effectively solve the above problems is really one of the important R & D topics at present, and it has become an urgent target for improvement in related fields.

A technical aspect of the present invention relates to a three-dimensional curved panel, which forms a cutting line extending from the edge of the cover layer toward the central region on the protective film, so that the protective film can better match the cover layer with the three-dimensional curved surface fit. In this way, the covering layer protected by the protective film can reduce or avoid external influences, such as preventing foreign objects from entering the three-dimensional curved panel, or preventing the covering layer from being affected by the covering layer. Scratches, etc. Furthermore, the yield of manufacturing a three-dimensional curved panel can be improved, and the production cost can be reduced.

The invention provides a three-dimensional curved panel including a cover layer and a protective film. The cover layer has a three-dimensional curved surface. The three-dimensional surface varies in height from the edge of the overlay to the center of the overlay. The protective film is attached to the surface of the cover layer. The protective film has a cutting line. The cutting lines respectively extend from the edges of the cover layer toward the central area.

In one or more embodiments of the present invention, the aforementioned edge has a plurality of corner sections. The cutting lines respectively extend from the corner section toward the central area.

In one or more embodiments of the present invention, the above-mentioned cutting line continuously extends from the edge of the cover layer toward the central region.

In one or more embodiments of the present invention, an end of the cutting line facing the central region is located on a bending section of the three-dimensional curved surface.

In one or more embodiments of the present invention, the above-mentioned height change is an increasing function or a decreasing function.

In one or more embodiments of the present invention, the protective film described above further has a plurality of holes. The hole is located at the end of the cutting line near the central area.

In one or more embodiments of the present invention, the aforementioned holes penetrate or do not penetrate the protective film.

In one or more embodiments of the present invention, the holes are located on a side of the protective film near the cover layer.

In one or more embodiments of the present invention, the cutting line is located on a side of the protective film facing the cover layer.

The present invention further provides a three-dimensional curved touch panel including the above-mentioned three-dimensional curved panel and a touch module. The touch module is attached to the cover layer of the three-dimensional curved panel.

The present invention further provides a three-dimensional curved touch display panel, which includes the three-dimensional curved panel, a touch module, and a display module. The touch module is attached to the cover layer of the three-dimensional curved panel. The display module is attached to the surface of the touch module away from the cover layer.

100‧‧‧Three-dimensional curved touch display panel

120‧‧‧ 3D curved panel

121‧‧‧Edge

1211‧‧‧ Corner Section

1212‧‧‧ Connected Section

122‧‧‧ Overlay

123‧‧‧3D surface

124‧‧‧ protective film

125‧‧‧ central area

126‧‧‧cut line

128 / 128’‧‧‧ Hole

129‧‧‧Bend section

1291‧‧‧ turning point

140‧‧‧Touch Module

160‧‧‧Display Module

180‧‧‧ frame

A-A’‧‧‧ line segment

D‧‧‧ dotted frame

H‧‧‧height change

In order to make the above and other objects, features, advantages, and embodiments of the present invention more comprehensible, the description of the drawings is as follows: FIG. 1 illustrates an explosion of a three-dimensional curved touch display panel according to an embodiment of the present invention. schematic diagram.

FIG. 2 is an isometric diagram of a three-dimensional curved panel according to an embodiment of the present invention.

FIG. 3 is a side sectional view of the three-dimensional curved panel along line A-A 'in FIG. 2.

FIG. 4A and FIG. 4B are side cross-sectional views of a three-dimensional curved panel according to a plurality of different embodiments of the present invention in a dotted frame in FIG. 3.

Unless otherwise indicated, the same numbers and symbols in different drawings are usually regarded as corresponding parts. The illustrations are shown to clearly illustrate the relevant associations of the embodiments and not to illustrate the actual dimensions.

In the following, a plurality of embodiments of the present invention will be disclosed graphically. For the sake of clarity, many practical details will be described in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and components will be shown in the drawings in a simple and schematic manner.

When an element is referred to as being "on", it can mean that the element is directly on the other element or that other elements are present in the two. In contrast, when an element is called "directly in" another element, it cannot have other elements in the middle. As used herein, the term "and / or" includes any combination of one or more of the associated listed items.

FIG. 1 is an exploded view of a three-dimensional curved touch display panel 100 according to an embodiment of the present invention. As shown in FIG. 1, the three-dimensional curved touch display panel 100 includes a three-dimensional curved panel 120, a touch module 140, a display module 160, and an outer frame 180. The three-dimensional curved panel 120 includes a cover layer 122 and a protective film 124. The touch module 140 can be attached to the cover layer 122 of the three-dimensional curved panel 120. For example, the touch module 140 and the cover layer 122 are attached through an optical clear adhesive (OCA), but it is not limited thereto. The display module 160 is attached to a surface of the touch module 140 away from the cover layer 122. The outer frame 180 may be coupled with the three-dimensional curved panel 120 and collectively protect the touch module 140 and the display module 160 inside, but it is not limited thereto.

FIG. 2 is an isometric diagram of a three-dimensional curved panel 120 according to an embodiment of the present invention. FIG. 3 is a side cross-sectional view of the three-dimensional curved panel 120 shown along the line A-A 'in FIG. 2. Figures 4A and 4B are based A side cross-sectional view of the three-dimensional curved panel 120 shown in various embodiments of the present invention in a dashed frame D in FIG. 3, where a portion bounded by the dashed frame D is a bent section 129 of the three-dimensional curved surface 123 and an adjacent one section. As shown in FIGS. 2 and 3, the cover layer 122 has a three-dimensional curved surface 123. The protective film 124 is adhered to the three-dimensional curved surface 123 of the cover layer 122. The three-dimensional curved surface 123 has a height change H from an edge 121 of the cover layer 122 to a central region 125 of the cover layer 122. In this embodiment, the height change H may be an increasing function, but is not limited thereto. In other embodiments, the height change H may be a decreasing function. The protective film 124 has a cutting line 126 and is attached to the three-dimensional curved surface 123 of the cover layer 122. The cutting line 126 extends from the edge 121 of the cover layer 122 toward the central region 125. More specifically, in various embodiments, the cutting line 126 may have a groove-like structure with two opposite planes, such as a V-shaped groove line or a U-shaped groove line, and is formed on the plane of the protective film 124 near the cover layer 122 on. Referring to FIG. 4A, when the protective film 124 is attached to the three-dimensional curved surface 123, the two planes of the groove-like structure of the cutting line 126 will also adhere to each other along the curvature of the three-dimensional curved surface 123, but it is not limited thereto.

Because the protective film 124 of the three-dimensional curved panel 120 is provided with a cutting line 126, the non-adhesive portion of the protective film 124 to the outside of the central region 125 can be curved. When the protective film 124 is attached to the three-dimensional curved surface 123, it is better Laminates with the three-dimensional curved surface 123. In this way, the three-dimensional curved surface 123 can be covered with the protective film 124 more completely, so as to reduce or prevent the covering layer 122 from being scratched, and can prevent foreign objects such as dust or suspended particles from entering the covering layer 122, or, Enter other structures below the cover layer 122. That is, protecting the surface of the three-dimensional curved panel 120 through the protective film 124 allows the user to effectively avoid the three-dimensional curved surface. The panel 120 is affected by the outside world, and further reduces or avoids the damage of the three-dimensional curved touch display panel 100.

Referring to FIG. 2, the edge 121 may have a corner section 1211 and a connecting section 1212 connected between the corner sections 1211. In this embodiment, the cutting line 126 may extend from the corner section 1211 toward the central region 125. In various embodiments, the cutting line 126 extends continuously from the edge 121 of the cover layer 122 toward the central region 125. In other embodiments, the cutting line 126 may extend from the edge 121 of the cover layer 122 toward the central region 125 at intervals.

It is worth noting that the aspects of the cover layer 122 and the cutting line 126 described in the present disclosure are merely examples, which are not intended to limit the present invention. For example, the other surface of the cover layer 122 far from the three-dimensional curved surface 123 may be a curved surface or a flat surface. For example, the bending angle of the three-dimensional curved surface 123 is not limited, and may be from 0 degrees to 180 degrees, or even from 0 degrees to -180 degrees (concave). For example, the curvature change of the three-dimensional curved surface 123 may also be discontinuous. For example, the cutting lines 126 may be formed at intervals with the curvature of the three-dimensional curved surface 123. For example, the cutting line 126 may or may not pass through the protective film 124, but is not limited thereto. It should be understood that those with ordinary knowledge in the technical field to which the present invention pertains should flexibly select the cover layer 122 and the cutting line 126 according to actual needs, so that the protective film 124 can adaptively cover the curved surface of the cover layer 122. The cover layer 122 may be bonded to other layers, such as the touch module 140 or other suitable touch display modules.

Referring to FIGS. 3 and 4A, an end of the cutting line 126 away from the edge 121 may be located on the bent section 129 of the three-dimensional curved surface 123. In more detail, the end of the cutting line 126 near the central area 125 will extend to a place where the three-dimensional curved surface 123 has a curvature change, such as a bent section 129, to better release the protective film 124. The stress between the cover layer 122 and the cover layer 122 can even prevent bubbles from being generated between the protective film 124 and the three-dimensional curved surface 123, thereby preventing the protective film 124 from peeling off from the cover layer 122.

Referring to FIGS. 2 and 4A, in various embodiments, the protective film 124 may further include a plurality of holes 128. The hole 128 is located at an end of the cutting line 126 near the central region 125. The hole 128 may not penetrate the protective film 124 and is located on a side of the protective film 124 near the cover layer 122, but is not limited thereto. Referring to FIG. 4B, the hole 128 'may also penetrate the protective film 124. In this embodiment, the hole 128 'may also be correspondingly disposed on the turning point 1291 where the curvature changes most on the bending section 129 to better release the stress between the protective film 124 and the cover layer 122. In various embodiments, the holes 128, 128 'may be circular, oval, or other suitable closed patterns to prevent the protective film 124 from cracking along the cutting line 126 when the protective film 124 is removed.

In summary, the present invention provides a three-dimensional curved panel including a cover layer having a three-dimensional curved surface with a height change and a protective film having a cutting line. The protective film can be preferably bonded to the three-dimensional curved surface of the cover layer by a cutting line. In this way, the covering layer protected by the protective film can reduce or avoid being affected by external influences, such as preventing foreign objects from entering the three-dimensional curved panel, or preventing the covering layer from being scratched. Furthermore, the yield of the three-dimensional curved panel can be improved, and the production cost can be reduced.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the attached patent application.

Claims (11)

A three-dimensional curved panel includes: a covering layer having a three-dimensional curved surface, wherein the three-dimensional curved surface has a height change from an edge of the covering layer to a central region of the covering layer; and a protective film attached to the covering layer On a surface of the protective film, the protective film has a plurality of cutting lines extending from the edge of the cover layer toward the central region, respectively. The three-dimensional curved panel according to item 1 of the scope of patent application, wherein the edge has a plurality of corner sections, and the cutting lines respectively extend from the corner sections toward the central region. The three-dimensional curved panel according to item 1 of the scope of the patent application, wherein the cutting lines continuously extend from the edge of the cover layer toward the central region. The three-dimensional curved panel according to item 1 of the patent application scope, wherein one end of the cutting lines near the central region is located on a bent section of the three-dimensional curved surface. The three-dimensional curved panel according to item 1 of the patent application scope, wherein the height change is an increasing function or a decreasing function. The three-dimensional curved panel according to item 1 of the scope of patent application, wherein the protective film further has a plurality of holes, which are respectively located at the ends of the cutting line near the central region. The three-dimensional curved panel according to item 6 of the patent application scope, wherein the holes penetrate or do not penetrate the protective film. The three-dimensional curved panel according to item 6 of the patent application, wherein the holes are located on a side of the protective film near the cover layer. The three-dimensional curved panel according to item 1 of the patent application scope, wherein the cutting lines are located on a side of the protective film facing the cover layer. A three-dimensional curved touch panel includes: a three-dimensional curved panel as described in any one of items 1 to 9 of the scope of patent application; and a touch module that is attached to the cover layer of the three-dimensional curved panel. . A three-dimensional curved touch display panel includes: a three-dimensional curved panel as described in any one of claims 1 to 9 of a patent application scope; and a touch module that is attached to the cover layer of the three-dimensional curved panel. And a display module attached to a surface of the touch module away from the cover layer.