CN111724684A - Foldable display device, method of unfolding the same, and method of closing the same - Google Patents
Foldable display device, method of unfolding the same, and method of closing the same Download PDFInfo
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- CN111724684A CN111724684A CN202010581168.1A CN202010581168A CN111724684A CN 111724684 A CN111724684 A CN 111724684A CN 202010581168 A CN202010581168 A CN 202010581168A CN 111724684 A CN111724684 A CN 111724684A
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Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
The invention discloses a foldable display device which comprises a frame assembly, a first magnetic piece, a second magnetic piece and at least one display panel. The frame assembly comprises a first frame portion and a second frame portion. The first magnetic part is positioned on the first frame part. The second magnetic part is positioned on the second frame part. The bezel assembly substantially surrounds a perimeter of the display panel. The display panel has a foldable area. The first frame portion and the second frame portion are respectively located on two opposite sides of the foldable area. A method of expanding the foldable display device and a method of closing the foldable display device are also provided.
Description
Technical Field
The present invention relates to a display device and a method for opening and closing the same, and more particularly, to a foldable display device, a method for opening the same, and a method for closing the same.
Background
With the development of display panel manufacturing process, the manufacturing technology of the foldable display panel is gradually mature, so that the foldable display panel is popularized in consumer products. The foldable display panel can be applied to foldable electronic devices such as a foldable mobile phone and a tablet computer, and is configured on two bodies of the electronic device at the same time and can be bent along with the expansion and the closing of the two bodies.
When the two bodies of the electronic device and the foldable display panel are unfolded, the display area of the foldable display panel covers the two bodies to provide a larger display picture for a user to watch. When the electronic device is in the closed state, the two bodies need to be fixed together by using the fixing member, so as to prevent the display panel from being exposed to the environment due to being unfolded. In addition, when the display panel is disposed on the back of the electronic device, a force is applied to the display panel to unfold the electronic device, thereby increasing the mechanical efficiency of the electronic device.
Disclosure of Invention
The invention provides a foldable display device which can reduce the risk of damage of a display panel.
The foldable display device comprises a frame assembly, a first magnetic piece, a second magnetic piece and at least one display panel. The frame assembly comprises a first frame portion and a second frame portion. The first magnetic part is positioned on the first frame part. The second magnetic part is positioned on the second frame part. The frame assembly is implemented to surround the periphery of at least one display panel. At least one display panel has a foldable area. The first frame portion and the second frame portion are respectively located on two opposite sides of the foldable area.
The method of unfolding the foldable display device of the present invention comprises the following steps. The foldable display device is provided, wherein the foldable display device is in a closed mode. So that the first magnetic member and the second magnetic member generate a repulsive force therebetween to gradually separate the first frame portion and the second frame portion from each other.
The method of closing the foldable display device of the present invention comprises the following steps. The foldable display device is provided wherein the foldable display device is not in a closed mode. The first frame portion and the second frame portion are gradually moved closer to each other. The first magnetic element and the second magnetic element generate an attractive force therebetween, so that the foldable display device enters a closed mode.
In view of the above, the foldable display device according to an embodiment of the invention generates the repulsive force or the attractive force by the first magnetic element and the second magnetic element having the same or different polarities respectively. Therefore, the foldable display device can assist a user to relatively unfold the first frame portion and the second frame portion, so as to assist the user to unfold the display panel easily. Therefore, the risk of damage to the display panel caused by the force applied by the user can be reduced, and the protection of the display panel is improved.
One of the objects of the present invention is to apply an intelligent expanding method or a closing method to a foldable display device.
One of the objectives of the present invention is to reduce the risk of damage to the display panel caused by the force applied by the user.
One of the objectives of the present invention is to reduce the probability of the display panel not being unfolded.
One of the objects of the present invention is to improve the protection of a display panel.
One of the objects of the present invention is to assist the unfolding or closing of a foldable display device.
One of the objectives of the present invention is to provide a better user experience.
Drawings
FIG. 1A is a schematic top view of a foldable display device in a non-closed mode according to an embodiment of the present invention.
FIG. 1B is a schematic top view of the connection portion of the foldable display device in the closed mode in FIG. 1A.
FIG. 1C is a schematic top view of the first sidewall and the second sidewall of the foldable display device of FIG. 1A in a closed mode.
FIG. 2 is a cross-sectional view of the foldable display device of FIG. 1A along the cross-sectional line A-A'.
FIG. 3A is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention.
FIG. 3B is a cross-sectional view of the foldable display device of FIG. 3A along the cross-sectional line B-B'.
FIG. 4A is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention.
FIG. 4B is a cross-sectional view of the foldable display device of FIG. 4A along the cross-sectional line C-C'.
FIG. 5A is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention.
FIG. 5B is a cross-sectional view of the foldable display device of FIG. 5A along a section line D-D'.
FIG. 6A is a schematic top view of a first sidewall and a second sidewall of a foldable display device in a closed mode according to another embodiment of the present invention.
FIG. 6B is a schematic top view of the connection portion of the foldable display device of FIG. 6A in a closed mode.
FIG. 7 is a flowchart illustrating a method for expanding a foldable display device according to an embodiment of the invention.
FIG. 8 is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention.
FIGS. 9A-9C are schematic side views of the foldable display device of FIG. 8 from a non-closed mode to a closed mode.
FIG. 10 is a flowchart of a method of closing the foldable display device according to an embodiment of the invention.
FIG. 11A is a schematic side view of a foldable display device according to another embodiment of the invention.
FIG. 11B is a schematic top view of the connection portion of the foldable display device of FIG. 11A in a closed mode.
Wherein, the reference numbers:
1: non-closed mode
10. 10A, 10B, 10C, 10D, 10E, 10F foldable display device
11: upper side
12 lower side
13. 14 side edge
20. 30 method
100 frame assembly
110 the first frame part
111 first back
112 first side wall
113 first front part
120 the second frame part
121: first back part
122 second side wall
123 second front part
130 connecting part
200 display panel
201 outer edge
210 base
220 first insulating layer
230 interlayer insulating layer
240 light emitting element layer
250 second insulating layer
260 foldable area
310. 310A first magnetic member
320. 320A second magnetic member
400A, 400B, 400C, 400D, 400E, a sensing member
500 signal element group
510 signal transmitting element
520 signal receiving element
A-A ', B-B', C-C ', D-D' hatching
AA active region
BA peripheral area
D is distance
D1A first reference line
D2The second reference line
DBBottom part
DMReference line
Dm1、DTMA first part
DM2、DBMThe second part
DTTop part
F external force
L is the central line
M is a reference center line
R1 first reference point
R2 second reference point
S210, S220, S230, S240, S250, S310, S320, S330, S340, S350
W is reference distance
Detailed Description
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, without departing from the spirit or scope of the present invention.
In the drawings, the thickness or size of some of the elements may be exaggerated for clarity. Throughout the specification, the same reference numerals indicate the same or similar elements, and may have the same or similar functions, structures, modes of use, or correspondence.
It will be understood that when an element such as a layer, film, region or layer is referred to as being "on" or "connected to" or "overlapping" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections; or directly or indirectly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions integers, steps, operations, elements, components, and/or groups thereof.
Furthermore, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element, as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "beneath" can encompass both an orientation of above and below.
As used herein, "substantially", "similarly", or "approximately" includes the stated value and the average value within an acceptable range of deviation of the specified value as determined by one of ordinary skill in the art, taking into account the measurement in question and the specified amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Exemplary embodiments are described herein with reference to side, perspective, or cross-sectional views that are schematic illustrations of idealized embodiments. Thus, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region shown or described as flat may generally have rough and/or nonlinear features. Further, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the claims. In addition, for clarity, some layers or components may be omitted from the drawings.
FIG. 1A is a schematic top view of a foldable display device in a non-closed mode according to an embodiment of the present invention. FIG. 1B is a schematic top view of the connection portion of the foldable display device in the closed mode in FIG. 1A. FIG. 1C is a schematic top view of the first sidewall and the second sidewall of the foldable display device of FIG. 1A in a closed mode. FIG. 2 is a cross-sectional view of the foldable display device of FIG. 1A along the cross-sectional line A-A'. In fig. 1A, 1B and 1C, several elements are omitted for clarity of drawing elements and convenience of description. Referring to fig. 1A and fig. 2, the foldable display device 10 of the present embodiment is, for example, a smart phone or a tablet computer, and includes a frame assembly 100, at least one first magnetic member 310, at least one second magnetic member 320, and at least one display panel 200. The bezel assembly 100 substantially surrounds the periphery of the display panel 200. As shown in fig. 1, the frame assembly 100 may symmetrically define two frame portions by a central line L, so that the frame assembly 100 includes a first frame portion 110 and a second frame portion 120. In the present embodiment, the bezel assembly 100 further includes a connecting portion 130. The connecting portion 130 may connect the first frame portion 110 and the second frame portion 120, so that the first frame portion 110 and the second frame portion 120 are movably pivoted (movably) with each other. The display panel 200 may be unfolded on the first frame portion 110 and the second frame portion 120 as the first frame portion 110 and the second frame portion 120 are relatively unfolded. Alternatively, as shown in fig. 1A or fig. 1B, the first frame portion 110 and the second frame portion 120 may be folded between the first frame portion 110 and the second frame portion 120 along with the relative closing of the first frame portion 110 and the second frame portion 120, but the invention is not limited thereto.
Specifically, as shown in fig. 1A and 2, the foldable display device 10 is in the non-closed mode 1. The frame assembly 100 of the foldable display device 10 can define a first frame portion 110 and a second frame portion 120 symmetrically to each other by a center line L. The first frame portion 110 includes a first back portion 111, a first front portion 113, and a first sidewall 112 connecting the first back portion 111 and the first front portion 113. The second frame portion 120 includes a second back portion 121, a second front portion 123, and a second sidewall 122 connecting the second back portion 121 and the second front portion 123. In the present embodiment, the connecting portion 130 overlaps the middle line L and extends along the middle line L. The connecting portion 130 is disposed between the first frame portion 110 and the second frame portion 120. Under the above arrangement, the first frame portion 110 is disposed on the left side of the central line L and the connecting portion 130, and the second frame portion 120 is disposed on the right side of the central line L and the connecting portion 130, so as to form the frame assembly 100.
In the present embodiment, the connecting portion 130 is, for example, a hinge (pivot) or a hinge (hinge). Thus, the first frame portion 110 and the second frame portion 120 of the frame assembly 100 can be regarded as a housing that can be relatively opened or closed along the rotation direction of the hinge or the hinge, but not limited thereto. In the embodiment, the material of the first frame portion 110 and the second frame portion 120 may be plastic or metal, but not limited thereto.
As shown in fig. 1A and 2, the bezel assembly 100 surrounds the display panel 200. Specifically, a display area AA having a function of displaying images and a peripheral area BA surrounding the display area AA can be defined on the display panel 200. The bezel assembly 100 is disposed in the peripheral area BA to surround the display area AA. More specifically, as shown in fig. 1A and fig. 2, the peripheral area BA of the display panel 200 may be clamped between the first frame portion 110 and the second frame portion 120. For example, the display panel 200 is disposed between the first back portion 111 and the first front portion 113 of the first frame portion 110, and a portion of an outer edge 201 of the display panel 200 is surrounded by the first sidewall 112. In addition, the display panel 200 is disposed between the second back portion 121 and the second front portion 123 of the second frame portion 120, and another portion of the outer edge 201 of the display panel 200 is surrounded by the second sidewall 122. As such, the display panel 200 may be disposed in the bezel assembly 100, and the display panel 200 may be unfolded and folded along with the bending of the bezel assembly 100. In the embodiment, the display panel 200 is suitable for displaying a single screen in the first frame portion 110 and the second frame portion 120 together or displaying different screens in the first frame portion 110 and the second frame portion 120 respectively according to different display modes, but the invention is not limited thereto.
In the present embodiment, the display panel 200 may be a light emitting diode display panel (LED), an organic light emitting diode display panel (OLED), a quantum dot display panel (QD), or other suitable display panel. Taking the oled display panel as an example, the display panel 200 includes a substrate 210, a first insulating layer 220, an interlayer insulating layer 230, a light emitting device layer (not shown, refer to fig. 4B), and a second insulating layer 250. In the embodiment, the material of the substrate 210 may be stainless steel (stainless steel) or other flexible materials, but not limited thereto. The first insulating layer 220 is disposed on the substrate 210. The material of the first insulating layer 220 may be an organic resin, such as polyethylene terephthalate (PET), or other suitable materials, but is not limited thereto. The interlayer insulating layer 230 is disposed on the first insulating layer 220. The material of the interlayer insulating layer 230 may be Polyimide (PI)) or other suitable materials, but is not limited thereto. A light emitting device layer (e.g., the light emitting device layer 240 shown in fig. 4B) is disposed on the interlayer insulating layer 230. The light emitting element layer is, for example, a light emitting structure as a pixel, and may include a multi-layer structure including, for example, a Hole Injection Layer (HIL), a Hole Transport Layer (HTL), a light Emitting Layer (EL), and an Electron Transport Layer (ETL). The drawings of the present invention, such as fig. 4B, are for ease of illustration and clarity and are shown as a single layer structure. The second insulating layer 250 is disposed on the first insulating layer 220 or the light emitting device layer. The material of the second insulating layer 250 may be an organic resin, such as PET or other suitable materials, but not limited thereto.
In addition, the display panel 200 further includes an active device array (not shown) disposed in the interlayer insulating layer 230. The active device array includes a plurality of Thin Film Transistors (TFTs) (not shown). The thin film transistor is, for example, a low temperature polysilicon thin film transistor (LTPS) or an amorphous silicon thin film transistor (a-Si), but the invention is not limited thereto. The active element array can be electrically connected with the light-emitting element layer to provide a display signal.
In the present embodiment, the display panel 200 has a foldable area 260. Foldable area 260 overlaps centerline L and connecting portion 130. The first frame portion 110 and the second frame portion 120 may be respectively located at two opposite sides of the foldable area 260. Under the above configuration, when the first frame portion 110 and the second frame portion 120 are relatively unfolded or closed, the display panel 200 can be bent along the foldable area 260, so that the display panel 200 is unfolded or folded corresponding to the first frame portion 110 and the second frame portion 120.
As shown in fig. 1A and 2, the first magnetic member 310 and the second magnetic member 320 are respectively located on the first frame portion 110 and the second frame portion 120. Specifically, the first magnetic member 310 may be disposed on the first back portion 111 of the first frame portion 110, and sandwiched between the first back portion 111 and the display panel 200. The second magnetic element 320 may be disposed on the second back portion 121 of the second frame portion 120 and sandwiched between the second back portion 121 and the display panel 200, but the invention is not limited thereto. In some embodiments, the first magnetic member 310 may also be disposed on the first front portion 113 of the first frame portion 110, and sandwiched between the first front portion 113 and the display panel 200. The second magnetic element 320 may be disposed on the second front portion 123 of the second frame portion 120, and sandwiched between the third back portion 123 and the display panel 200.
In the present embodiment, the first magnetic member 310 is, for example, an electromagnet or a permanent magnet. The second magnetic member 320 is, for example, an electromagnet or a permanent magnet. In some embodiments, both of the first and second magnetic members 310 and 320 include electromagnets. In other embodiments, one of the first magnetic member 310 and the second magnetic member 320 is a permanent magnet, and the other comprises an electromagnet. In still other embodiments, one of the first magnetic element 310 and the second magnetic element 320 is made of ferromagnetic or ferrimagnetic material (e.g., iron, cobalt, nickel, etc.), and the other includes an electromagnet.
As shown in fig. 1A, the plurality of first magnetic elements 310 may be located on the first frame portion 110 in the peripheral area BA, and the plurality of second magnetic elements 320 may be located on the second frame portion 120 in the peripheral area BA. One of the plurality of first magnetic elements 310 and the corresponding second magnetic element 320 may be symmetrically disposed on two opposite sides of the central line L, but not limited thereto. In the embodiment, the plurality of first magnetic elements 310 and the plurality of second magnetic elements 320 are disposed around the display panel 200, but the number of the first magnetic elements 310 and the plurality of second magnetic elements 320 is not limited to the number described in fig. 1A. In other embodiments, the number of the first magnetic members 310 may be one, two or several, and the number of the second magnetic members 320 may be one, two or several.
It is noted that, since the foldable display device 10 of the present embodiment can have the same polarity as the first magnetic element 310 and the second magnetic element 320 when in the non-closed mode 1, the first magnetic element 310 and the second magnetic element 320 respectively have the same polarity, so as to generate the opposing force. Alternatively, the first magnetic element 310 and the second magnetic element 320 do not have any polarity. Therefore, the first magnetic element 310 and the second magnetic element 320 are not attracted to each other, so that the first frame portion 110 and the second frame portion 120 can be easily unfolded by the user, thereby reducing the risk of damage to the display panel 200 caused by the force applied by the user, and further, the repulsive force assisting the user to unfold the foldable display device 10 can provide the user with a more reliable unfolding feeling, thereby providing a better user experience.
Please refer to fig. 1B and fig. 1C. FIG. 1B is a top view of the connecting portion 130 of the foldable display device 10 in the closed mode 2. The foldable display device 10 shown in FIG. 1B is a back side with respect to FIG. 1A. In the closed mode 2, the first frame portion 110 and the second frame portion 120 (shown in fig. 1A) can be closed relatively, so that only the connecting portion 130 serving as a hinge is shown in fig. 1B.
In the present embodiment, the foldable display device 10 further includes at least one sensing element 400A disposed on the frame assembly 100. Specifically, the sensing member 400A is disposed on the connection portion 130. In this embodiment, the sensing member 400A may be disposed near the top of the connection portion 130, or may be disposed near the bottom of the connection portion 130. In some embodiments, the sensing element 400A may be disposed on the top or the bottom of the connection portion 130, or the sensing element 400A may be disposed on only one of the top or the bottom of the connection portion 130, which is not limited in the present invention. In the embodiment, the sensing element 400A is, for example, a camera component (camera component) or a sensor (sensor) having a face-recognition function, but not limited thereto.
Fig. 1C is a top view of the first frame portion 110 and the second frame portion 120 of the foldable display device 10 in the closed mode 2. In the closed mode 2, the first frame portion 110 and the second frame portion 120 (shown in fig. 1A) can be closed relatively, so that only the first sidewall 112 of the first frame portion 110 and the second sidewall 122 of the second frame portion 120 are shown in fig. 1C.
In the present embodiment, a plurality of sensors 400B may be further disposed on the first sidewall 112 and the second sidewall 122. The sensors 400B may be disposed along the extending direction of the first sidewall 112 and the second sidewall 122. The sensors 400B may be disposed on any one of the first sidewall 112 and the second sidewall 122 in a straight line arrangement. In some embodiments, several of the sensors 400B may be disposed near the top D of the first sidewall 112TAnd the top D of the second side wall 122TAnd (4) setting.
For example, the top D of the first sidewall 112 (or the second sidewall 122)TAnd the bottom DBA length D may be defined in between. A reference line D can be defined in the direction perpendicular to the length DM. Reference line DMThe length D may be divided into two portions. Reference line DMAnd the top DTCan be defined as a first part DTMAnd a reference line DMAnd the bottom DBBetween which a second portion D can be definedBM. First part DTMHas a length of
And a second part DBMHas a length of
With the above arrangement, the sensor 400B can be close to the top D of the first sidewall 112 or the second sidewall 122TIs arranged and located at the first part DTMIn (1). That is, the sensor 400B may be centered near the top DTTo reference line DM25% of the extended sidewall length D (i.e., the extended sidewall length D)
) But the invention is not limited thereto. In some embodiments, the top DTTo reference line DMThe length distance therebetween may also be 5% to 25% (i.e., the sidewall length D) of the sidewall length D
To
) But not limited thereto.
In the embodiment, the sensing element 400B is, for example, a sensor with a face recognition function, but not limited thereto.
In the present embodiment, the foldable display device 10 can include the sensing element 400A and the sensing element 400B, but the invention is not limited thereto. In some embodiments, the foldable display device 10 may include only one of the sensing element 400A and the sensing element 400B.
Under the above configuration, the user's face can be easily detected by the sensors 400A and 400B, so as to provide the best user experience.
It is noted that, the foldable display device 10 of the present embodiment can generate the attraction force by making the first magnetic element 310 and the second magnetic element 320 have different polarities when in the closed mode 2. Alternatively, one of the first magnetic member 310 and the second magnetic member 320 has magnetism. Therefore, the first magnetic element 310 and the second magnetic element 320 attract each other, so that the first frame portion 110 and the second frame portion 120 can be easily fixed in the closed mode 2, thereby reducing the probability that the display panel 200 is not expected to be unfolded and improving the protection of the display panel 200. In addition, the attractive force that assists the user in closing the foldable display device 10 may also provide a more positive closing feel to the user, which may provide a better experience for the user.
In addition, since the foldable display device 10 of the present embodiment can generate the repulsive force by the sensors 400A and 400B when the foldable display device is in the closed mode 2, the first magnetic element 310 and the second magnetic element 320 have the same polarity respectively. Alternatively, the first magnetic element 310 and the second magnetic element 320 do not have any polarity. Therefore, the risk of damage to the display panel 200 due to the force applied by the user is reduced. As such, an intelligent unfolding method or closing method may be applied to the foldable display device 10 to assist the unfolding or closing of the foldable display device 10. In addition, the user can also be provided with a better use experience. The detailed unfolding method or closing method of the foldable display device 10 will be described in the following paragraphs.
The following embodiments follow the reference numerals and part of the contents of the foregoing embodiments, wherein the same reference numerals are used to indicate the same or similar elements, and for the part of the description where the same technical contents are omitted, reference may be made to the foregoing embodiments, and the description in the following embodiments is not repeated.
FIG. 3A is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention. FIG. 3B is a cross-sectional view of the foldable display device of FIG. 3A along the cross-sectional line B-B'. In fig. 3A, several elements are omitted for clarity of drawing elements and ease of illustration. The foldable display device 10A of the present embodiment is similar to the foldable display device 10 shown in fig. 1A and 2, and the main differences are: in the present embodiment, the first magnetic member 310 is disposed on the upper side 11 and the lower side 12 of the bezel assembly 100 corresponding to the first bezel portion 110, and the second magnetic member 320 is disposed on the upper side 11 and the lower side 12 of the bezel assembly 100 corresponding to the second bezel portion 120. The first magnetic element 310 and the second magnetic element 320 are symmetrically disposed on opposite sides of the center line L. It should be noted that the number and the positions of the first magnetic element 310 and the plurality of second magnetic elements 320 shown in fig. 3A and 3B are only illustrative, and the number and the positions of the first magnetic element 310 and the plurality of second magnetic elements 320 are not limited thereto. Thereby, the foldable display device 10A can obtain the same effect as the above embodiments.
FIG. 4A is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention. FIG. 4B is a cross-sectional view of the foldable display device of FIG. 4A along the cross-sectional line C-C'. In fig. 4A, several elements are omitted for clarity of drawing elements and ease of illustration. The foldable display device 10B of the present embodiment is similar to the foldable display device 10 shown in fig. 1A and 2, and the main differences are: in the embodiment, the first magnetic element 310 is disposed on the side 13 of the bezel assembly 100 corresponding to the first bezel portion 110, and the second magnetic element 320 is disposed on the side 14 of the bezel assembly 100 corresponding to the second bezel portion 120. Referring to fig. 3A and 4A, the sides 13 and 14 can be defined as being between the upper side 11 and the lower side 12 and located on opposite sides of the centerline L. The first magnetic element 310 and the second magnetic element 320 are symmetrically disposed on opposite sides of the middle line L. It should be noted that the number and the positions of the first magnetic element 310 and the plurality of second magnetic elements 320 shown in fig. 4A and 4B are only illustrative, and the number and the positions of the first magnetic element 310 and the plurality of second magnetic elements 320 are not limited thereto.
As shown in fig. 4B, the light emitting device layer 240 may be disposed in the display area AA and sandwiched between the interlayer insulating layer 230 and the second insulating layer 250. Thus, the light emitting device layer 240 can be used as a pixel in the display area AA. With the above arrangement, the foldable display device 10B can achieve the same effects as the above embodiments.
FIG. 5A is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention. FIG. 5B is a cross-sectional view of the foldable display device of FIG. 5A along a section line D-D'. In fig. 5A, several elements are omitted for clarity of drawing elements and ease of illustration. The foldable display device 10C of the present embodiment is similar to the foldable display device 10 shown in fig. 1A and 2, and the main differences are: in the present embodiment, the plurality of first magnetic elements 310 are disposed in the display area AA corresponding to the first frame portion 110 in an array arrangement, but not in the peripheral area BA. The plurality of second magnetic elements 320 are disposed in the display area AA corresponding to the second frame portion 120 in an array arrangement, but not in the peripheral area BA. In some embodiments, the first magnetic element 310 and the second magnetic element 320 may not be arranged in an array. The first magnetic element 310 and the second magnetic element 320 are disposed on opposite sides of the foldable area 260 without overlapping the connecting portion 130. It should be noted that the number and the positions of the first magnetic element 310 and the plurality of second magnetic elements 320 shown in fig. 5A and 5B are only illustrative, and the number and the positions of the first magnetic element 310 and the plurality of second magnetic elements 320 are not limited thereto.
Since the first magnetic element 310 and the second magnetic element 320 are disposed between the display panel 200 and the bezel assembly 100, the first magnetic element 310 and the second magnetic element 320 do not affect the display function of the display panel 200. In addition, the layout area of the first magnetic member 310 and the second magnetic member 320 can be increased, and the magnetic attraction (or repulsion) area and strength can be further increased. Thereby, the foldable display device 10C can obtain the same effect as the above-mentioned embodiment.
FIG. 6A is a schematic top view of a first sidewall and a second sidewall of a foldable display device in a closed mode according to another embodiment of the present invention. FIG. 6B is a schematic top view of the connection portion of the foldable display device of FIG. 6A in a closed mode. In fig. 6A and 6B, several elements are omitted for clarity of drawing elements and convenience of description. The foldable display device 10D of the present embodiment is similar to the foldable display device 10 shown in fig. 1B and 1C, and the main differences are: in the present embodiment, the sensors 400D and 400C shown in fig. 6A and 6B are, for example, sensors with fingerprint-recognition (fingerprint-recognition) function, but not limited thereto.
Fig. 6A is a top view of the first frame portion 110 and the second frame portion 120 of the foldable display device 10 in the closed mode 2. In the closed mode 2, the first frame portion 110 and the second frame portion 120 (shown in fig. 1A) can be relatively closed, so that only the first sidewall 112 of the first frame portion 110 and the second sidewall 122 of the second frame portion 120 are shown in fig. 6A.
In the present embodiment, a plurality of sensors 400D may be further disposed on the first sidewall 112 and the second sidewall 122. The sensors 400D may be disposed along the extending direction of the first sidewall 112 and the second sidewall 122. The sensors 400D may be disposed on any one of the first sidewall 112 and the second sidewall 122 in a straight line arrangement. In some embodiments, several of the sensors 400D may also be centered near the reference centerline M.
For example, the first sidewall 112 (or the second sidewall 122) may define a length D between the top and the bottom. The reference middle line M may be defined as a line that symmetrically divides the first sidewall 112 (or the second sidewall 122) into two opposite upper and lower portions along the vertical length D. In this embodiment, it extends upwardly from the reference centerline M by 15% of the distance D (i.e., it extends upwardly from the reference centerline M by a distance D of 15%
) A first reference line D parallel to the reference center line M can be defined1And a first reference line D1The distance from the reference median line M defines a first portion DM1. Extends downwardly from the reference centerline M by 15% of the distance D (i.e., the
) A second reference line D parallel to the reference center line M can be defined2And a second reference line D2The distance from the reference median line M defines a second portion DM2。
In this embodimentIn the first part D, the sensor 400D can be disposedM1And/or the second part DM2In (1). That is, the sensor 400D is disposed within 15% of the sidewall length D extending to the top or the bottom near the reference center line M, but the invention is not limited thereto. In some embodiments, the first portion DM1Length and second portion D ofM2May also be within 15% of the side wall length D, respectively.
In some embodiments, the first portion DM1Length and second portion D ofM2The length of (a) may also be between 5 mm and 20 mm, but is not limited thereto.
On the other hand, the foldable display device 10D shown in fig. 6B is a rear surface with respect to fig. 1A. In the closed mode 2, the first frame portion 110 and the second frame portion 120 (shown in fig. 1A) can be closed relatively, so that only the connecting portion 130 serving as a hinge is shown in fig. 6B.
In this embodiment, the sensing member 400C may be disposed near the top of the connection portion 130, or may be disposed near the bottom of the connection portion 130. In some embodiments, the sensing element 400C may be disposed on the top or the bottom of the connection portion 130, or the sensing element 400C may be disposed on only one of the top or the bottom of the connection portion 130, which is not limited in the present invention. In the present embodiment, the sensing element 400C is a sensor with fingerprint identification function.
In the embodiment, the foldable display device 10D can include the sensing element 400C and the sensing element 400D on the back and the front of the device, respectively, but the invention is not limited thereto. In some embodiments, the foldable display device 10D may include only one of the sensing element 400C and the sensing element 400D.
Under the above arrangement, the user's fingers can simply contact the sensors 400C and 400D to provide the user with the best experience.
The method of unfolding the foldable display device 10 will be described with the embodiment shown in fig. 1A to 1C and fig. 2.
FIG. 7 is a flowchart illustrating a method for expanding a foldable display device according to an embodiment of the invention. The method 20 shown in fig. 7 is an example only and is not intended to limit the present invention. The operation of method 20 will now be briefly described below.
Referring to fig. 7, in the present embodiment, the method 20 starts with step S210. In FIG. 1B or FIG. 1C, the foldable display device 10 is in the closed mode 2, and the sensing element 400A or the sensing element 400B detects correctly.
In this embodiment, the sensing element 400A or the sensing element 400B may perform the next step after detecting the object (not shown). For example, the sensing member 400A or the sensing member 400B may perform the next step after recognizing the face of the user, or perform the next step after recognizing the fingerprint of the user, but not limited thereto.
In step S250, when the detection of the sensing element 400A or the sensing element 400B is incorrect, such as a failure of face recognition or a failure of fingerprint recognition, a failure signal is generated for the foldable display device 10. Accordingly, the foldable display device 10 is re-identified to go back to step S210 to use the sensing element 400A or the sensing element 400B for re-detection.
In step S220, when the detection of the sensing element 400A or the sensing element 400B is correct, the foldable display device 10 can provide one of the first current and/or the second current to the first magnetic element 310 or the second magnetic element 320. As such, the first magnetic element 310 and the second magnetic element 320 can be simultaneously applied with the first current and have the same polarity (e.g., positive polarity). Alternatively, the first magnetic element 310 and the second magnetic element 320 may be simultaneously subjected to the second current to have the same polarity (e.g., negative polarity).
In some embodiments, when one of the first magnetic member 310 and the second magnetic member 320 is an electromagnet and the other is a permanent magnet, one of the first magnetic member 310 or the second magnetic member 320 may be subjected to the first current or the second current, while the other of the first magnetic member 310 or the second magnetic member 320 may not be subjected to any current.
In step S230, when the first magnetic member 310 and the second magnetic member 320 have the same polarity, an opposing force is generated between the first magnetic member 310 and the second magnetic member 320, so that the first frame portion 110 and the second frame portion 120 are gradually separated from each other.
In step S240, after the first frame portion 110 and the second frame portion 120 are gradually separated from each other, the foldable display device 10 stops providing the first current and/or the second current to eliminate the polarities of the first magnetic element 310 and the second magnetic element 320.
In some embodiments, when one of the first magnetic member 310 and the second magnetic member 320 is an electromagnet and the other is a permanent magnet, one of the first magnetic member 310 or the second magnetic member 320 may stop receiving the first current or the second current, and the other of the first magnetic member 310 or the second magnetic member 320 may not receive any current.
Thus, the foldable display device 10 of the present embodiment can generate the repulsive force by using the intelligent unfolding method 20 to make the first magnetic element 310 and the second magnetic element 320 have the same polarity through the sensors 400A and 400B in the closed mode 2. In this way, the foldable display device 10 can assist the user to relatively unfold the first frame portion 110 and the second frame portion 120 to unfold the display panel 200. Therefore, the risk of damage to the display panel 200 caused by the force applied by the user can be reduced and the protection of the display panel 200 can be improved. In addition, the repulsive force assisting the user to relatively unfold the first frame portion 110 and the second frame portion 120 can provide the user with a more reliable unfolding feeling, and can provide the user with a better use experience.
FIG. 8 is a schematic top view of a foldable display device in a non-closed mode according to another embodiment of the present invention. FIGS. 9A-9C are side views of the foldable display device of FIG. 8 from a non-closed mode to a closed mode. In fig. 8, 9A, 9B and 9C, some elements are omitted for clarity of drawing elements and convenience of description. The foldable display device 10E of the present embodiment is similar to the foldable display device 10 shown in FIG. 1, and the main difference is that: in the present embodiment, the first magnetic element 310A is a strip and is disposed in the peripheral area BA corresponding to the first frame portion 110. The second magnetic member 320A is in a strip shape and disposed in the peripheral area BA corresponding to the second frame portion 120. The first magnetic member 310A is disposed on the upper side and the lower side of the first frame portion 110 and the side edge connecting the upper side and the lower side to surround the display panel 200. The second magnetic element 320A is disposed on the upper side and the lower side of the second frame portion 120 and the side connecting the upper side and the lower side to surround the display panel 200. From another perspective, the first magnetic element 310A and the second magnetic element 320A may be in a C-like pattern in a top view, but not limited thereto.
As shown in fig. 8, the first frame portion 110 further has a first reference point R1, and the second frame portion 120 further has a second reference point R2. First, as shown in fig. 8 and 9, a group of signal element groups 500 may be disposed at the first reference point R1 and the second reference point R2, respectively. For example, a signal transmitting element (transmitter)510 of the signal element group 500 may be set at a first reference point R1, and a signal receiving element (receiver)520 of the signal element group 500 may be set at a second reference point R2. The signal transmitting element 510 can be, for example, an infrared transmitter, and the signal receiving element 520 can be, for example, an infrared receiver, but not limited thereto. The signal receiving device 520 receives the signal from the signal sending device 510 to determine whether the distance between the two is equal to or less than a predetermined reference distance W (shown in fig. 9B). Thus, the signal element set 500 can provide a signal to the foldable display device 10E to determine whether to provide a current.
It should be noted that the signal element group 500 can be correspondingly disposed on the corresponding positions of the foldable display device 10, the foldable display device 10A, the foldable display device 10B, the foldable display device 10C and the foldable display device 10D in the foregoing embodiments. And is not limited by the schematic diagrams depicted in fig. 1A-6B.
The method of closing the foldable display device 10E will be described with the embodiment shown in FIGS. 9A-9C.
FIG. 10 is a flowchart of a method of closing the foldable display device according to an embodiment of the invention. The method 30 illustrated in FIG. 10 is an example only and is not intended to limit the present invention. The operation of method 30 will now be briefly described below.
Referring to fig. 10, in the present embodiment, the method 30 starts with step S310. In fig. 9A, the foldable display device 10E is not in the closed mode.
In step S320, the user applies an external force F to gradually bring the first frame portion 110 and the second frame portion 120 closer to each other. At this time, as shown in fig. 9A and 9B, the foldable area 260 of the display panel 200 may be folded to gradually bring the first frame portion 110 and the second frame portion 120 closer to each other.
In step S330, when the distance between the first reference point R1 on the first bezel part 110 and the second reference point R2 on the second bezel part 120 is equal to or less than the preset reference distance W, the signal receiving element 520 may receive the signal from the signal transmitting element 510. The signal receiving device 520 can provide a driving signal to the foldable display device 10E, so that the foldable display device 10E can provide a first current to the first magnetic element 310 and a second current to the second magnetic element 320, respectively.
In detail, in the present embodiment, the preset reference distance W may be defined as a straight distance between the first reference point R1 and the second reference point R2. More specifically, the reference distance W is a straight line distance from the signal transmitting element 510 to the signal receiving element 520, and the reference distance W is between 10 mm and 20 mm. Thus, when the linear distance between the first reference point R1 and the second reference point R2 is equal to or less than the predetermined reference distance W, the signal element group 500 enables the foldable display device 10E to provide the first current to the first magnetic element 310 and the second current to the second magnetic element 320.
In step S340, the first current makes the first magnetic member 310 have a first polarity (e.g., positive polarity), and the second current makes the second magnetic member 320 have a second polarity (e.g., negative polarity). In the present embodiment, the first polarity and the second polarity are polarities different from each other.
In some embodiments, when one of the first magnetic member 310 and the second magnetic member 320 is an electromagnet and the other is a permanent magnet, one of the first magnetic member 310 or the second magnetic member 320 may be subjected to a first current or a second current to generate a polarity, and the other of the first magnetic member 310 or the second magnetic member 320 may not be subjected to any current. The polarity of the first magnetic member 310 is different from the polarity of the second magnetic member 320.
In step S350, an attractive force is generated between the first magnetic member 310 and the second magnetic member 320. As shown in fig. 9B and 9C, the first frame portion 110 and the second frame portion 120 can be closed relatively by the attraction force between the first magnetic member 310 and the second magnetic member 320, so that the first frame portion 110 and the second frame portion 120 are closed relatively. Thus, the foldable display device 10E is brought into the closed mode 2.
Thus, the foldable display device 10E of the present embodiment can generate the attraction force by using the intelligent closing method 30 to make the first magnetic element 310 and the second magnetic element 320 have different polarities through the signal element set 500 in the non-closed mode 1. In this way, the foldable display device 10E can assist the user to relatively close the first frame portion 110 and the second frame portion 120 to fold the display panel 200. In addition, the attractive force may fix the first frame portion 110 and the second frame portion 120. Therefore, the probability that the display panel 200 is not expected to be unfolded can be reduced and the protection of the display panel 200 can be improved. In addition, the attraction force for assisting the user to close the first frame portion 110 and the second frame portion 120 can provide the user with a more secure closing feeling, and can provide the user with a better use experience.
FIG. 11A is a schematic side view of a foldable display device according to another embodiment of the invention. FIG. 11B is a schematic top view of the connection portion of the foldable display device of FIG. 11A in a closed mode. In fig. 11A and 11B, for clarity of drawing elements and convenience of description, some elements are omitted. The foldable display device 10F of the present embodiment is similar to the foldable display device 10E of FIG. 9A, and the main differences are: in the present embodiment, the relative folding direction of the first frame portion 110 and the second frame portion 120 is opposite to the folding direction shown in fig. 9A. Specifically, in the present embodiment, the first frame portion 110 and the second frame portion 120 are folded back toward the back of the frame assembly 100 along the rotation direction of the connecting portion 130. That is, the first back portion 111 of the first frame portion 110 and the second back portion 121 of the second frame portion 120 are gradually close, so that the first back portion 111 is adjacent to the second back portion 121 (not shown). Under the above arrangement, the display panel 200 is exposed due to the folding. Accordingly, the foldable display device 10F has a function of displaying a screen on both opposite sides of the foldable display device 10F in the closed mode 2.
As shown in FIG. 11B, the foldable area 260 of the display panel 200 still has a display function. The top and bottom of the connection portion 130 are located at opposite sides of the display panel 200, respectively. The sensing element 400E may be disposed on both the top and the bottom of the connecting portion 130, or only on the top or the bottom of the connecting portion 130, but not limited thereto. In the embodiment, the sensing element 400E is, for example, a camera assembly or a sensor with a face recognition function, but not limited thereto.
In some embodiments, a plurality of sensors may also be disposed on the first sidewall 112 and the second sidewall 122. The arrangement of the sensors can be the same as that shown in fig. 1C or fig. 6B, and therefore, the description thereof is omitted. In the embodiment, the sensor 400E on the connecting portion 130 and the sensors on the first sidewall 112 and the second sidewall 122 may be all sensors with a face recognition function, but the invention is not limited thereto. In some embodiments, the sensor 400E and the sensors on the first sidewall 112 and the second sidewall 122 may be both fingerprint sensors. In other embodiments, the sensor 400E on the connecting portion 130 and the sensors on the first sidewall 112 and the second sidewall 122 may also be one of a sensor with a human face recognition function and a fingerprint sensor, respectively.
Under the above configuration, when the user expands the foldable display device 10E, the sensor 400E can be used to use an intelligent expansion method, so that the first magnetic element 310 and the second magnetic element 320 have the same polarity, respectively, to generate an opposing force. Thus, the user does not need to exert force on the display panel 200 to unfold the foldable display device 10E. Therefore, the risk of damage to the display panel 200 caused by the force applied by the user can be reduced and the protection of the display panel 200 can be improved. In addition, the repulsive force assisting the user to unfold the first frame portion 110 and the second frame portion 120 can provide the user with a more reliable unfolding feeling, and can provide the user with a better use experience. The foldable display device 10E can also be folded using a smart closing method, and the same effect as the above-described embodiment is obtained.
In summary, in the foldable display device according to an embodiment of the invention, the sensor is used to intelligently expand the first magnetic element and the second magnetic element to have the same polarity when the foldable display device is in the closed mode, so as to generate the opposing force. Therefore, the foldable display device can assist a user to relatively unfold the first frame portion and the second frame portion, so as to assist the user to easily unfold the display panel. Therefore, the risk of damage to the display panel caused by the force applied by the user can be reduced and the protection of the display panel can be improved.
In addition, the foldable display device can also use an intelligent closing method through the signal element group when in a non-closing mode, so that the first magnetic element and the second magnetic element respectively have different polarities to generate attraction force. In this way, the foldable display device can assist the user to relatively close the first frame portion 110 and the second frame portion 120 to fold the display panel 200. In addition, the attractive force between the first magnetic member and the second magnetic member can also fix the first frame portion and the second frame portion. Therefore, the probability that the display panel is not expected to be unfolded can be reduced, and the protection of the display panel can be improved. In addition, the repulsion force assisting the user to the foldable display device for unfolding and the attraction force assisting the user to the foldable display device for closing can provide the user with more reliable unfolding or closing feeling, thereby providing better use experience for the user.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A foldable display device, comprising:
a bezel assembly, comprising:
a first frame portion; and
a second frame portion;
a first magnetic part is positioned on the first frame part;
a second magnetic part is positioned on the second frame part; and
the display device comprises at least one display panel, wherein the frame assembly substantially surrounds the periphery of the display panel, the display panel is provided with a foldable area, and the first frame part and the second frame part are respectively positioned at two opposite sides of the foldable area.
2. A foldable display device according to claim 1, wherein the frame assembly further comprises a connecting part for connecting the first frame part and the second frame part.
3. A foldable display device according to claim 1, wherein the first and second magnetic members comprise electromagnets.
4. A foldable display device according to claim 1, wherein one of the first and second magnetic members is a permanent magnet and the other comprises an electromagnet.
5. A foldable display device according to claim 1, further comprising at least one sensing element disposed on the frame assembly.
6. A method of unfolding a foldable display device, comprising:
providing a foldable display device according to any one of claims 1 to 5, wherein the foldable display device is in a closed mode; and
so as to generate a repulsive force between the first magnetic member and the second magnetic member, and gradually separate the first frame portion and the second frame portion from each other.
7. A method of unfolding a foldable display device according to claim 6, further comprising:
before the step of generating the repulsive force between the first magnetic member and the second magnetic member, the sensing member detects a detected object.
8. A method of unfolding a foldable display device according to claim 7, further comprising:
after the step of detecting the detected object by the sensing element, one of a first current and a second current is provided to the first magnetic element or the second magnetic element, so that the first magnetic element and the second magnetic element have the same polarity.
9. A method of unfolding a foldable display device according to claim 8, further comprising:
after the first frame portion and the second frame portion are gradually far away from each other, the first current or the second current is stopped to be supplied, so that the polarities of the first magnetic piece and the second magnetic piece are eliminated.
10. A method of closing a foldable display device, comprising:
providing a foldable display device according to any one of claims 1 to 5, wherein the foldable display device is not in a closed mode;
gradually approaching the first frame part and the second frame part to each other; and
so that a relative attraction force is generated between the first magnetic member and the second magnetic member, and the foldable display device enters the closed mode.
11. A method of closing a foldable display device according to claim 10, wherein:
the step of gradually approaching the first frame portion and the second frame portion includes bending the foldable display panel along the foldable area.
12. A method of closing a foldable display device according to claim 11, wherein after the step of gradually bringing the first frame portion and the second frame portion closer to each other:
when the distance between a first reference point on the first frame part and a second reference point on the second frame part is equal to or less than a reference distance, a first current is correspondingly provided to the first magnetic part and a second current is correspondingly provided to the second magnetic part respectively; and
the first current makes the first magnetic part have a first polarity, and the second current makes the second magnetic part have a second polarity,
wherein the first polarity is different from the second polarity.
13. A method of closing a foldable display device according to claim 12, wherein the reference distance is 10 mm to 20 mm.
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| US62/885,377 | 2019-08-12 | ||
| TW109106893A TWI725756B (en) | 2019-07-16 | 2020-03-03 | Flexible display device, method of unfolding thereof, and method of folding thereof |
| TW109106893 | 2020-03-03 |
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| CN111724684A true CN111724684A (en) | 2020-09-29 |
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| CN202010581168.1A Pending CN111724684A (en) | 2019-07-16 | 2020-06-23 | Foldable display device, method of unfolding the same, and method of closing the same |
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| CN109391713A (en) * | 2018-12-20 | 2019-02-26 | 惠州Tcl移动通信有限公司 | A kind of mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220104371A1 (en) * | 2021-07-23 | 2022-03-31 | Shanghai Tianma Microelectronics Co., Ltd. | Display device |
| US11895792B2 (en) * | 2021-07-23 | 2024-02-06 | Shanghai Tianma Microelectronics Co., Ltd. | Display device |
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