WO2017164578A1

WO2017164578A1 - Mobile communication device with flexible display panel having structure in which bubble generation is prevented

Info

Publication number: WO2017164578A1
Application number: PCT/KR2017/002918
Authority: WO
Inventors: 박현민
Original assignee: 박현민
Priority date: 2016-01-19
Filing date: 2017-03-18
Publication date: 2017-09-28
Also published as: CN108886544B; KR20170086999A; KR20170087003A; KR102464948B1; KR20170087008A; KR102498898B1; KR20170087000A; CN108886544A; KR102464949B1; KR102477189B1

Abstract

The present invention relates to a mobile communication device with a flexible display panel having a structure in which bubble generation is prevented and, more specifically, to a mobile communication device with a flexible display panel having a structure in which bubble generation is prevented, the mobile communication device being capable of preventing bubble generation on the inner surface of a flexible display panel while manufacturing a mobile communication device such as a smart phone which has the flexible display panel installed on the outside thereof and of which a middle portion is folded, and also preventing the outer surface of the flexible display panel from being broken while the flexible display panel is being folded or unfolded.

Description

Mobile communication device that is installed with a flexible display panel having a structure that prevents bubble generation

The present invention relates to a mobile communication device having a flexible display panel having a structure that prevents the occurrence of bubbles, more specifically, to a mobile communication device such as a smart phone is installed in the flexible display panel is folded outside the center portion The flexible display panel is installed having a structure that prevents bubbles from being generated on the inner surface of the flexible display panel and prevents bubbles from being broken during the folding or unfolding of the flexible display panel. It relates to a mobile communication device.

The mobile terminal may be configured to perform various functions. Examples of such various functions include data and voice communication functions, taking pictures or videos through a camera, storing voices, playing music files through a speaker system, and displaying images or videos.

Some mobile terminals include additional functionality to play games, while others are implemented as multimedia devices. Moreover, recent mobile terminals can receive broadcast or multicast signals to watch video or television programs.

In addition to the above functions, efforts are currently being made to support and increase the functions of the mobile terminal. The foregoing efforts include additions and improvements in software or hardware as well as changes and improvements in the structural components forming the mobile terminal.

In general, in the mobile terminal, the display module displays information processed in the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call.

When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays a photographed and / or received image, a UI, or a GUI. The display module includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a 3D display. ) And the like.

Among them, the research of the flexible display (or flexible LCD) has been made in earnest due to the advantage that the shape can be freely modified. However, it seems that it will take a long time to carry a completely paper-like display like a scroll, as shown in the current fantasy film.

Therefore, many transitional forms will be used until the development of the flexible display proceeds and the usage is activated in earnest, and this form will not be significantly different from the current terminal structure.

Therefore, when the flexible display currently being developed is used in a mobile terminal, there is a need to describe its usage form and its protection method.

Patent literature similar to a mobile communication device in which a flexible display panel having a structure to prevent bubble generation according to the present invention is disclosed in Korean Laid-Open Publication No. 10-2006-0087387, published on August 02, 2006, of the invention Name: A pressure-sensitive adhesive sheet having a multi-stage air discharge passage).

The present invention is an improvement of the conventional smartphone, having a display area of more than twice as large as the display screen of the conventional smartphone, the center portion of the smartphone so that the user is configured to be folded in the middle of the smart for carrying A multi-joint hinge part of a plurality of connected joints is installed on the joint, and when the screen of the smart phone is folded or unfolded, the multi-joint hinge part can be stably supported on both sides of each joint of the articulated hinge part. The support groove of the mobile communication device is provided with a flexible display panel which is formed to support the multi-joint hinge while the guide support on the side of the cover slide is inserted into the 'c' shaped support groove of each joint. It aims to do it.

In addition, during the manufacturing of a mobile communication device such as a smart phone such that the flexible display panel is installed on the outside and the center portion is folded, it prevents bubbles from occurring on the inner surface of the flexible display panel and also during the folding or unfolding of the flexible display panel. Another object of the present invention is to provide a mobile communication device in which a flexible display panel having a structure in which bubble generation is prevented from being prevented from being damaged by a side is installed.

In order to achieve the above object, the mobile communication device is provided with a flexible display panel having a structure that prevents the generation of bubbles according to the present invention,

In the mobile communication device in which the flexible display panel is installed, two bodies are composed of the upper panel portion 11 and the lower panel portion 31,

In the center portion connecting the two

panel portions

11 and 31 to each other, a multi-joint hinge portion 40 composed of a plurality of joints is installed to be connected to each other and folded in a circle, and the upper panel portion 11 and The upper surface of the lower panel 31 is formed with a gap 110 composed of grooves, the entire surface is configured in the embossed shape,

An adhesive or an adhesive is applied to the upper surfaces of the upper panel portion 11 and the lower panel portion 31, and the flexible display panel is attached onto the applied adhesive or adhesive, and is generated during the attaching process of the flexible display panel. Bubbles fall into the gap 110.

The mobile communication device is provided with a flexible display panel having a structure that prevents the generation of bubbles according to the present invention, the flexible display panel is installed on the outside of the flexible display panel in the middle of manufacturing a mobile communication device such as a smartphone folded There is a remarkable effect that it is possible to prevent bubbles from occurring on the inner side and to prevent the outer side from being broken while the flexible display panel is folded or unfolded.

1 is an exploded perspective view of a hinge structure for a mobile communication device in which a flexible display panel according to the present invention is installed.

2 is a perspective view of the cover slide viewed from the inside of the hinge structure for a mobile communication device in which the flexible display panel according to the present invention is installed.

3 is a perspective view of the upper panel portion folded to the lower panel portion in a hinge structure for a mobile communication device in which a flexible display panel according to the present invention is installed.

Figure 4 is a perspective view from the inside of the upper panel portion folded to the lower panel portion in the hinge structure for a mobile communication device is installed flexible display panel according to the present invention.

5 is a perspective view of a folded state of a mobile communication device having a hinge structure for a mobile communication device in which the flexible display panel according to the present invention is installed.

FIG. 6 is an enlarged enlarged view of the articulated hinge portion of FIG. 1;

7 is an enlarged view of a portion designated as a circle in FIG. 4.

8 is a side view illustrating a folded state of a hinge structure for a mobile communication device in which a flexible display panel according to the present invention is installed.

9 is a side view illustrating a conventional adhesive film for attaching a display panel to a mobile communication device.

10 is a perspective view illustrating a state in which a flexible display panel is installed on an entire surface of a body part including a hinge structure for a mobile communication device according to the present invention.

11 is a groove in a grid shape on the surface of the upper panel and the lower panel corresponding to the body to attach the flexible display panel to the entire body portion including the hinge structure for a mobile communication device according to the invention It is a perspective view which shows the embossing structure.

FIG. 12 is an enlarged perspective view of a portion of the upper panel unit illustrated in FIG. 11.

FIG. 13 is a perspective view illustrating a portion of the upper panel illustrated in FIG. 11 removed.

** Explanation of symbols for main parts of drawings **

11: upper panel portion 31: lower panel portion

40: articulated hinge 42: 'c' shaped support groove

50: cover slide 53: side

54: guide support 56: stopper protrusion

60: camp push rod 61: rod

62: spring seating groove 64: stopper groove

90: adhesive or adhesive

100: flexible display panel 101: the outer surface

110: gap 112: embossed surface

1 is an exploded perspective view of a hinge structure for a mobile communication device in which a flexible display panel according to the present invention is installed. 2 is a perspective view of the cover slide viewed from the inside of the hinge structure for a mobile communication device in which the flexible display panel according to the present invention is installed.

Referring to FIG. 1, the hinge structure for a mobile communication device, in which a flexible display panel according to the present invention is installed, has two bodies comprising an upper panel portion 11 and a lower panel portion 31, and two panel portions 11. , 31) is connected to each other is provided with a multi-joint hinge portion 40 consisting of a plurality of joints connected to each other to be bent in a circular shape.

At the side of each joint of the articulated hinge portion 40 of the present invention, a support groove 42 formed concave in a 'c' shape is formed so that the guide supports 54 of both sides 53 of the cover slide 50 are provided. Will be fitted.

On both side surfaces of the inner surface of the lower panel portion 31 of the present invention, a spring seating portion 62 is provided on which the cam push rod 60 is installed.

The cam push rod 60 of the present invention is composed of a rod 61 into which the coil spring 63 is fitted and a plurality of stopper grooves 64.

The cover slide 50 according to the present invention is configured to be rotatable by fitting the shaft 153 formed in the lower end of the upper panel portion 11 to the coupling groove 52.

Referring to FIG. 2, the outer side of both side portions 53 of the cover slide 50 according to the present invention is configured with a guide support 54 fitted into the support groove 42 of the articulated hinge portion 40. A stopper protrusion 56 fitted into the stopper groove 64 of the cam push rod 60 is formed inside the side portion 53.

The cam push rod 60 of the present invention is covered by the cover 70 in a state where it is located at the spring seat 62, and the side portion 53 of the cover slide 50 is the cam push rod 60 at the spring seat. Stopping deviating from 62.

Cover slide (50) in the support groove (42) of the articulated hinge portion (40) connecting the upper panel portion (11) and the lower panel portion (31) in a state where the collapsible folding smartphone according to the present invention is deployed. Since the guide support portion 54 of the cover member 54 is kept fitted, the articulated hinge portion 40 is flatly supported in a straight line, and the stopper protrusion 56 of the cover slide 50 stops the stopper of the camp push rod 60. Since it fits in the groove 64 and receives an elastic force, unless external force is applied to the upper panel portion 11 and the lower panel portion 31 which are linearly spread, they are not folded by themselves.

In addition, the cam push rod 60 of the present invention is composed of a plurality of grooves 64, the position of the stopper projection 56 of the cover slide 50 is changed, the upper panel 11 and the lower panel 31 The folded angle can be adjusted.

The articulated hinge portion 40 according to the present invention may be made of a plastic material and / or a silicon material, PP, or the like.

Referring to FIG. 3, the support groove 42 of each joint in the articulated hinge portion 40 is the cover slide 50 while the upper panel portion 11 according to the present invention is folded with respect to the lower panel portion 31. It is folded in a circle while being separated one by one from the guide support (54) of. The cover slide 50 slides while being pushed from the lower panel portion 31 to the opposite side of the articulated hinge portion 40.

In addition, when the upper panel portion 11 according to the present invention is unfolded with respect to the lower panel portion 31, the guide support portion of the cover slide 50 in the support groove 42 of each joint in the articulated hinge portion 40 54) is inserted and unfolded in a straight line. And, the cover slide 50 is slid in the opposite direction as when it is folded.

Referring to FIG. 4, only the guide support 54 and the stopper protrusion 56 are shown in a state where a part of the side portion 53 of the cover slide 50 according to the present invention is not shown for convenience of description. However, in reality, the side part 53 is provided, the guide support 54 is provided in the outer surface of the side part 53, and the stopper protrusion 56 is provided in the inner surface.

In the state in which the upper panel portion 11 and the lower panel portion 31 of the present invention are folded halfway, the guide support 54 is fitted in the support groove 42 of the articulated hinge portion and installed on the opposite side of the guide support 54. The stopper protrusion 56 is fitted into one of the stopper grooves 64 of the cam push rod 60 so that the upper panel portion 11 and the lower panel portion 31 can be folded about 1/2.

In addition, even when the upper panel portion 11 and the lower panel portion 31 are completely folded, the stopper protrusion 56 is fitted into the other stopper groove 64 of the cam push rod 60 so that the articulated hinge portion 40 is provided. A circle folded shape can be supported.

Referring to FIG. 5, in the state where the upper panel portion 11 and the lower panel portion 31 are completely folded, the cover slide 50 is completely pushed from the lower panel portion 31 to the opposite side connected to the articulated hinge portion 40. It is shown that the state is true.

Due to the structure in which the guide support 54 of the cover slide 50 of the present invention is inserted into the support groove 42 of the articulated hinge portion 40 and slides, the articulated hinge portion 40 maintains a folded shape in a semi-cylindrical shape. There are features that can be.

In addition, since the stopper protrusion 56 of the cover slide 50 receives the elastic force by the coil spring 63 in a state of being fitted into one of the stopper grooves 64 of the camp push rod 60, the upper panel portion 11 and The folded state of the lower panel 31 is not easily unfolded in the state that no external force is applied.

The outer panel of the upper panel portion 11, the articulated hinge portion 40 and the lower panel portion 31 according to the present invention is provided with a display panel in which a flexible image is also shown to be bent.

FIG. 6 is an enlarged view of a side portion of the articulated hinge portion 40 in FIG. 1, in which a support groove 42 formed in a 'c' shape inward of a side of each joint of the articulated hinge portion 40 is configured. It is.

7 is an enlarged view of a portion designated as a circle in FIG. 4. Referring to FIG. 7, the support grooves 42 of the respective joints of the upper and

lower panel portions

11 and 31 are folded or unfolded so that the guide support 54 constitutes the articulated hinge portion 40. Has a configuration that is fitted in or separated from. Eventually, because the guide support 54 moves along the articulated hinge portion 40, the state in which the articulated hinge portion 40 is unfolded is supported or folded in a semicircular shape to be maintained properly.

8, in the out-folder type mobile communication device according to the present invention, the upper panel part 11 and the lower panel part based on the folded state of the upper panel part 11 and the lower panel part 13 according to the present invention. On the outer side of 31, the flexible display panel 100 on which an image including a touch panel is displayed is configured.

Although the upper surface of the upper panel portion 11 and the lower panel portion 31 to which the flexible display panel 100 is attached is always flat in the out-foldable mobile communication device, the articulated hinge portion 40 is the upper panel. The portion 11 and the lower panel portion 31 are folded to form a round shape (R shape).

Therefore, when the outer side surface 101 of the part attached to the articulated hinge part 40 is folded in the flexible display panel 100 of this invention, the problem which is easy to break becomes high.

Referring to FIG. 9, in order to manufacture a mobile communication device corresponding to a conventional smartphone, an adhesive film 92 was used to attach a display panel on which an image is displayed on a body part in which an electronic circuit or the like is installed therein. . Adhesives or adhesives 90 were applied to the upper and lower surfaces of the conventional adhesive film 92 to firmly attach the display panel to the upper surface of the body portion.

By the way, the conventional smartphone was a configuration that is attached to the body portion is configured such that the display panel is not bent. However, in the mobile communication device according to the present invention, the body portion is separated into the upper panel portion 11 and the lower panel portion 31, and a multi-joint hinge portion 40 composed of a plurality of joints that are rounded at the center portion is installed. Has a configuration.

Therefore, when the flexible display panel 100 is attached to the upper surface of the upper panel portion 11 and the lower panel portion 31 using the conventional adhesive film 29, it is attached to the articulated hinge portion 40. When the surface of the flexible display panel 100 is folded, the articulated hinge portion 40 has a problem in that the outer surface 101 of the flexible display panel 100 is damaged.

This is because the adhesive film 92 is made of synthetic resin such as PET, PVC, PE, PI, OPP, and does not have an elongated property, so that the adhesive film 92 is flexible in a state where the adhesive film 92 is attached to the flexible display panel 100. When the display panel 100 is bent, the inner surface of the flexible display panel 100 attached to the adhesive film 29 is not contracted, so that the outer surface 101 is broken while the outer surface 101 is stretched. The phenomenon is more likely to occur.

This is because, when the flexible display panel 100 is folded, the non-stretchable adhesive film 92 prevents the surface in contact with the flexible display panel 100 from contracting.

Referring to FIG. 10, in the folding outfolder type mobile communication device according to the present invention, the outer surface of the upper panel part 11, the lower panel part 31, and the articulated hinge part 40 according to the present invention are covered. One flexible display panel 100 is attached.

When the upper panel portion 11 and the lower panel portion 31 according to the present invention are folded in the direction of the arrow, the outer surface 101 of the portion that is in contact with the articulated hinge portion 40 in the flexible display panel 100 is damaged. easy.

In the present invention, when the flexible display panel 100 in which an image is displayed and a touch panel is installed is attached to the upper panel 11 and the lower panel 31 corresponding to the body of the mobile communication device, the flexible display panel 100 is flexible. In order to prevent bubbles from being generated in the display panel 100 and to prevent the outer surface 101 of the flexible display panel from being broken, the gap between the upper panel portion 11 and the lower panel portion 31 as a groove in the surface ( The above problem was solved by forming an embossing structure in which 110) was formed.

The upper panel part 11 and the lower panel part 31 of the present invention are body parts made of plastic or metal, etc., and have a circuit therein and a battery or the like.

Referring to Figure 11, in the upper panel portion 11 and the lower panel portion 31 according to the present invention to form a grid-like embossing structure in which a gap 110 is formed in the groove on the surface, the adhesive or pressure-sensitive adhesive (90) After the upper panel 11, the lower panel 31 and the upper surface of the articulated hinge portion 40 and the lower surface of the flexible display panel 100 is applied to the lower surface of the flexible display panel 100 The upper panel 11 is manufactured to be attached to the upper surface of the lower panel 31 and the articulated hinge portion 40.

If the flexible display panel 100 according to the present invention is generated in the middle of being attached to the upper surface of the upper panel portion 11, the lower panel portion 31 and the articulated hinge portion 40, the bubble is formed into a groove Fall into the gap 110. Since the articulated hinge portion 40 has a gap between each joint, if bubbles are generated, the air bubbles escape into the gap between the joints and the joints.

And, above all, the adhesive or the adhesive 90 does not include a film composed of synthetic resins such as PET, PVC, PE, PI, OPP, and the like, and is composed only of a liquid component, and the adhesive or the adhesive 90 is Since the flexible display panel 100, the upper panel portion 11, the lower panel portion 31, and the articulated hinge portion 40 are all configured to be applied to the surfaces in contact with each other, the outer surface of the flexible display panel 100 ( 101) The problem of breakage also does not occur.

In order to attach the flexible display panel 100 to the upper panel 11 and the lower panel 31 according to the present invention, the upper portion corresponding to the body portion of the mobile device while pushing the upper surface of the flexible display panel 100 using a roller or the like. It is attached to the panel 11, the lower panel 31, and the articulated hinge portion 40.

FIG. 12 is an enlarged perspective view of a portion of the upper panel unit illustrated in FIG. 11. FIG. 13 is a perspective view illustrating a portion of the upper panel illustrated in FIG. 11 removed.

12 to 13, if gaps 110 formed of grooves are formed on the upper surfaces of the upper panel portion 11 and the lower panel portion 31 and bubbles are generated when the flexible display panel 100 is attached. , The generated bubbles escape to the gap 110.

Embossing surface 112 according to the present invention can be variously modified in the shape of square, rectangle, rhombus and the like.

As an embodiment of the present invention, the gap 110 has a width and a depth of 0.1 mm, and the embossing surface 112 may have a square of 5 mm in width and length, respectively. However, this is only one embodiment and the width and depth of the gap 110, the size of the embossed surface 112 can be variously modified.

While the preferred embodiments of the present invention have been described above using specific terms, such descriptions are for illustrative purposes only, and it is obvious that various changes and modifications can be made without departing from the spirit and scope of the following claims. It's work. Such modified embodiments should not be understood individually from the spirit and scope of the present invention, but should fall within the claims appended to the present invention.

Claims

In a mobile communication device in which a flexible display panel is installed,

Two bodies are composed of the upper panel portion 11 and the lower panel portion 31,

In the middle portion connecting the two panel portions 11 and 31 to each other, a multi-joint hinge portion 40 composed of a plurality of joints is installed to be connected to each other and folded in a circle,

The upper surface of the upper panel portion 11 and the lower panel portion 31 is formed with a gap 110 formed of a groove, the entire surface is formed in an embossed shape,

An adhesive or an adhesive is applied to the upper surfaces of the upper panel portion 11 and the lower panel portion 31, and the flexible display panel is attached onto the applied adhesive or adhesive, and is generated during the attaching process of the flexible display panel. Mobile communication device is installed a flexible display panel having a structure that prevents the bubble is characterized in that the bubble falls into the gap (110).