CN111445803B - Display device - Google Patents
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- CN111445803B CN111445803B CN202010407413.7A CN202010407413A CN111445803B CN 111445803 B CN111445803 B CN 111445803B CN 202010407413 A CN202010407413 A CN 202010407413A CN 111445803 B CN111445803 B CN 111445803B
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- flexible display
- display panel
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Abstract
The application discloses a display device, which comprises a main body and a flexible display panel arranged on the main body, wherein the main body comprises a first unit and a second unit which are movably connected, and the flexible display panel at least covers the movably connected area; at least, the flexible display panel is movably connected with the main body, an installation space is arranged between the flexible display panel and the main body, a deformation inhibiting device is arranged in the installation space, and the deformation inhibiting device is used for inhibiting the convex deformation of the flexible display panel. According to the scheme, due to the fact that the deformation inhibiting device is arranged, when the display device is turned over to be in the flat state from the opposite turning state, the deformation inhibiting device exerts a force towards the main body on the flexible display panel to inhibit the protrusion of the flexible display panel, when the display device is turned over in the opposite turning state continuously, the flexible display panel cannot form wrinkles due to the fact that the protrusion exists in the turning process of the flexible display panel, and the problem that the flexible display panel is damaged irreversibly due to the fact that the protrusion exists in the turning process of the flexible display panel is solved.
Description
Technical Field
The present invention relates generally to the field of display technologies, and in particular, to a display device.
Background
With the development of display technology, flexible display screens are applied more and more widely. For example, foldable mobile phones exist in the market, and the display screen is a flexible display screen adopted. This can folding cell-phone can carry out 360 bendings, it has the state of closing (folding back flexible display forms the state of two parts that are close to each other), the state of flatting (flexible display is in the state of tiling) and the state of turning over (folding back flexible display forms the state of two parts that deviate from each other), by the state of turning over to the state of flatting after, in the region of buckling, flexible display has a certain amount of arch, if directly buckling to closing the state this moment, cause the protruding department of flexible display to form the fold easily, cause the irreversible damage of flexible display.
Disclosure of Invention
The application expects to provide a display device for solve among the prior art and buckle to closing the state by the flat state, cause the protruding department of flexible display screen to form the fold easily, cause the problem of the non-reversible damage of flexible display screen.
The invention provides a display device, which comprises a main body and a flexible display panel arranged on the main body, wherein the main body comprises a first unit and a second unit which are movably connected, and the flexible display panel at least covers the movably connected area; at least in the area of the movable connection, an installation space is arranged between the flexible display panel and the main body, a deformation inhibiting device is arranged in the installation space, and the deformation inhibiting device is used for inhibiting the convex deformation of the flexible display panel.
In an implementation manner, the deformation inhibiting device includes an electromagnetic generating unit and a soft magnetic material unit, one of the electromagnetic generating unit and the soft magnetic material unit is fixedly connected with the flexible display panel, and the other is fixedly connected with the main body.
In an implementation, the first unit and the second unit are hinged, the soft magnetic material unit comprises a plurality of soft magnetic material strips which are arranged at intervals side by side, and the extension direction of each soft magnetic material strip is parallel to the hinge axis of the first unit and the second unit.
As an implementation, each of the strips of soft magnetic material is fixedly connected to a side of the flexible display panel facing the body.
As an implementation, the soft magnetic material unit includes a soft magnetic material region formed on a side of the flexible display panel facing the body.
As an implementable manner, the electromagnetic generating unit includes an exciting coil.
As an implementable manner, a degaussing layer is provided between the deformation inhibiting means and the flexible display panel.
As an implementation manner, the flexible display panel further comprises a protrusion amount detection device and a magnetic control device, wherein the protrusion amount detection device is used for detecting the protrusion amount of the flexible display panel in the movable connection area; and the magnetic control device is used for controlling the strength of the magnetic field formed by the electromagnetic generation unit according to the amount of the bulge.
As an implementation manner, the protrusion amount detecting device includes an angle sensor and a calculating unit, the angle sensor is disposed at the movable connection, the angle sensor is configured to detect a current rotation angle of the first unit relative to the second unit, and the calculating unit is configured to determine a protrusion amount corresponding to the current rotation angle according to a corresponding relationship between the rotation angle and the protrusion amount; or the like, or, alternatively,
the protrusion amount detection device comprises a distance sensor arranged in the installation space, and the measuring end of the distance sensor is opposite to the main body or opposite to the flexible display panel.
As an implementation manner, the deformation inhibiting device includes an air bag and a first connecting piece and a second connecting piece which are detachably connected, one of the first connecting piece and the second connecting piece is fixedly connected with the flexible display panel, and the other one is fixedly connected with the main body, and the air bag is used for separating the first connecting piece and the second connecting piece in an inflated state; or the like, or, alternatively,
the deformation inhibiting device comprises a viscous variable glue layer, and the viscous variable glue layer is arranged on at least one of the main body and the flexible display panel.
According to the scheme, due to the fact that the deformation inhibiting device is arranged, when the display device is turned over to be in the flat state from the opposite turning state, the deformation inhibiting device exerts a force towards the main body on the flexible display panel to inhibit the protrusion of the flexible display panel, when the display device is turned over in the opposite turning state continuously, the flexible display panel cannot form wrinkles due to the fact that the protrusion exists in the turning process of the flexible display panel, and the problem that the flexible display panel is damaged irreversibly due to the fact that the protrusion exists in the turning process of the flexible display panel is solved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram of an uninhibited bump when a display device provided by an embodiment of the present invention is turned over to a flat state;
FIG. 2 is a schematic view of the structure of FIG. 1 after the bump is suppressed;
FIG. 3 is a schematic view of FIG. 2 folded from a flat state to an involuted state;
FIG. 4 is a schematic diagram of a display device according to another embodiment of the present invention;
fig. 5 is a schematic view of a display device according to still another embodiment of the invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, a display device according to an embodiment of the present invention includes a main body and a flexible display panel 7 disposed on the main body, the main body includes a first unit 1 and a second unit 2 that are movably connected, and the flexible display panel 7 covers at least a region Z of the movable connection; at least in the movably connected region Z, an installation space 6 is provided between the flexible display panel 7 and the main body, and a deformation suppression device is provided in the installation space 6 and is used for suppressing deformation of the protrusion 5 of the flexible display panel 7.
Such as but not limited to a cell phone, tablet computer, e-book, display, etc.
The main body may be a main component of the display device excluding the flexible display panel 7, and may include, but is not limited to, a housing, a circuit board within the housing, a battery, an antenna, and the like. For example, the main body includes a first unit 1 and a second unit 2, and each of the first unit 1 and the second unit 2 includes a housing, and at least one of a circuit board, a battery, and an antenna is disposed in each housing.
The first unit 1 and the second unit 2 may be articulated by means of a direct articulation. Of course, the first unit 1 and the second unit 2 may be movably connected by a multi-joint hinge. Generally, in order to make the first unit 1 and the second unit 2 present a relatively flat structure after being folded together, or to form a structure similar to a rectangle, a multi-section hinge can be preferably used for the movable connection. The multi-section hinge is formed by sequentially hinging a plurality of hinge subsections, in the example, three hinge subsections a, b and c are shared, and of course, other sections can be arranged according to specific conditions. The hinge joint of the hinge sub-section can be sleeved with a damping part, for example, a rubber sleeve is sleeved on the hinge shaft, so that certain damping is provided between the hinge shaft and the hinge hole of the hinge sub-section, the damping is used for providing certain resistance when the first unit 1 is overturned relative to the second unit 2, and the resistance can enable the first unit 1 to be static at any position relative to the second unit 2, so that the first unit 1 is prevented from freely swinging relative to the second unit 2.
The articulated region Z is a location of risk for the flexible display panel 7 to exhibit a protrusion 5, where the protrusion 5 is a side of the flexible display panel 7 facing away from the main body. In order to eliminate the protrusion 5, an installation space 6 is provided between the flexible display panel 7 and the main body in the movably connected region Z, and a deformation suppressing device for suppressing deformation of the protrusion 5 of the flexible display panel 7 is provided in the installation space 6.
According to the scheme, due to the fact that the deformation inhibiting device is arranged, when the display device is turned over to be in a flat state from a turning-over state, the deformation inhibiting device exerts a force towards the main body on the flexible display panel 7 to inhibit the protrusion 5 of the flexible display panel 7, when the flexible display panel is continuously turned over in the turning-over state, wrinkles cannot be formed due to the fact that the protrusion 5 exists in the flexible display panel 7, and the problem that the flexible display panel is damaged irreversibly due to the fact that the protrusion 5 exists in the turning-over process of the flexible display panel 7 is solved.
As an implementable manner, the deformation suppressing means includes the electromagnetic generating unit 3 and the soft magnetic material unit, and one of the electromagnetic generating unit 3 and the soft magnetic material unit is fixedly connected to the flexible display panel 7, and the other is fixedly connected to the main body.
The soft magnetic material unit is made of a soft magnetic material, and the soft magnetic material is used for the purpose of demagnetizing the soft magnetic material unit even when the electromagnetic generating unit 3 is turned off, and thus the display is not adversely affected by the magnetism of the soft magnetic material unit.
For example, the electromagnetic generating unit 3 is fixedly attached to the main body and the soft magnetic material unit is fixed to the flexible display panel 7, or vice versa. When the display device is changed from the flip state to the flat state, the electromagnetic generating unit 3 can be controlled to be energized to generate a magnetic field with a certain intensity so as to attract the soft magnetic material unit, as shown by an arrow in fig. 1, so as to form a downward attraction force, wherein the magnitude of the magnetic force generated by the electromagnetic generating unit 3 can be controlled according to the flip angle of the first unit 1 relative to the second unit 2, for example, as the flip angle of the first unit 1 relative to the second unit 2 increases, the magnetic force relatively increases so as to suppress the protrusion 5 of the flexible display panel 7. Of course, after the flip state is changed to the flat state, the electromagnetic generating unit 3 may be controlled to be powered on to generate a magnetic field with a certain intensity, so that one side of the main body of the protrusion 5 of the flexible display panel 7 is attracted, the protrusion 5 of the flexible display panel 7 is suppressed, that is, the protrusion 5 is eliminated, and the flexible display panel 7 is in the flat state. When the flexible display panel is folded back to the folded state, the flexible display panel 7 does not have the projection 5 and does not wrinkle as shown by the arrow in fig. 3.
As a practical matter, the first unit 1 and the second unit 2 are hinged, the soft magnetic material unit comprises a plurality of soft magnetic material strips 4 which are arranged at intervals side by side, and the extension direction of each soft magnetic material strip 4 is parallel to the hinge axis of the first unit 1 and the second unit 2. The strips of soft magnetic material 4 are spaced apart and extend in a direction parallel to the hinge axis, so that when the first unit 1 is bent relative to the second unit 2, no mutual pulling force is generated between the strips of soft magnetic material 4, thereby facilitating smooth operation of the bending.
As a practical manner, each strip 4 of soft magnetic material is fixedly connected to the side of the flexible display panel 7 facing the main body for easy installation and connection with the circuits of the electromagnetic generating unit 3, for example, the strip 4 of soft magnetic material can be fixed to the side of the flexible display panel 7 facing the main body by gluing, and accordingly, the electromagnetic generating unit 3 is fixedly connected to the main body, and the main body is provided with corresponding circuits, batteries and other components for facilitating electrical connection with the electromagnetic generating unit 3.
As a practical way, after the flexible display panel 7 is packaged, a stainless steel thin film is generally formed on the back surface, i.e. the side facing the main body, of the flexible display panel 7, and a soft magnetic material is doped in the stainless steel thin film corresponding to the movably connected region Z, so that the stainless steel thin film corresponding to the movably connected region Z forms a soft magnetic material thin film, i.e. the soft magnetic material unit includes the soft magnetic material thin film formed on the side facing the main body of the flexible display panel 7. The film of soft magnetic material may be used instead of the above-described strip of soft magnetic material 4 or together with the strip of soft magnetic material 4.
As an achievable way, the electromagnetic generating unit 3 includes an exciting coil, for example, but not limited to, a single-layer coil, and an iron core may or may not be provided in the middle of the exciting coil for reducing the volume.
As an implementable manner, in order to prevent the magnetic field generated by the deformation inhibiting means from adversely affecting the display, a degaussing layer is provided between the deformation inhibiting means and the flexible display panel 7. The demagnetizing layer is, for example, but not limited to, a tin foil layer.
As an implementation manner, in order to better suppress the protrusion 5 and reduce power consumption, the flexible display device further includes a protrusion amount detection device and a magnetic control device, the protrusion amount detection device is used for detecting the protrusion amount of the flexible display panel 7 in the movably connected region Z; the magnetic control device is used for controlling the strength of the magnetic field formed by the electromagnetic generation unit 3 according to the amount of the bulge. When the amount of the bulge is small, a small magnetic field is generated, and when the amount of the bulge is large, a correspondingly large magnetic field is generated.
As an implementation manner, the protrusion amount detection device includes an angle sensor and a calculation unit, the angle sensor is disposed at the movable connection, the angle sensor is configured to detect a current rotation angle of the first unit 1 relative to the second unit 2, and the calculation unit is configured to determine a protrusion amount corresponding to the current rotation angle according to a corresponding relationship between the rotation angle and the protrusion amount. Generally, the larger the angle of rotation of the first unit 1 with respect to the second unit 2, the larger the protrusion amount, and there is a correspondence relationship therebetween, and according to this correspondence relationship, it is possible to determine the protrusion amount corresponding to the current angle of rotation by measuring the current angle of rotation of the first unit 1 with respect to the second unit 2, and to control the electromagnetic generating unit 3 to form a magnetic field of corresponding strength according to the protrusion amount to suppress the protrusion 5.
Besides the angle measurement, the protrusion amount detection device may also be in the form of a distance sensor disposed in the installation space 6, and a measurement end of the distance sensor faces the main body or the flexible display panel 7. For example, the distance sensor may be, but is not limited to, a laser ranging sensor, which may be provided on the main body while its measuring end is facing the flexible display panel 7, and determines the amount of protrusion by emitting laser light to the flexible display panel 7 and receiving the laser light reflected by the flexible display panel 7. Similarly, the laser ranging sensor may be disposed on the flexible display panel 7, and the measuring end of the laser ranging sensor is opposite to the main body, and the laser ranging sensor emits laser to the flexible main body and receives the laser reflected by the main body to determine the amount of the protrusion.
In an implementation manner, as shown in fig. 4, the deformation inhibiting device includes an air bag 10 and a first connecting member 8 and a second connecting member 9 which are detachably connected, one of the first connecting member 8 and the second connecting member 9 is fixedly connected with the flexible display panel 7, the other one is fixedly connected with the main body, and the air bag 10 is used for separating the first connecting member 8 and the second connecting member 9 in an inflated state. In this solution, the first connector 8 and the second connector 9 may be, but not limited to, a buckle, a hook and loop fastener, etc. After the flexible display panel is converted from the flat state to the flip state, the position of the protrusion 5 of the flexible display panel 7 can be manually pressed to connect the first connecting member 8 and the second connecting member 9 together, so that the protrusion 5 of the flexible display panel 7 is restrained, and then the flexible display panel can be bent toward the flip state. Before the flexible display panel is bent from the flat state to the inverted state, the air bag 10 is inflated firstly, the first connecting piece 8 and the second connecting piece 9 are separated through the air bag 10, and the flexible display panel 7 is prevented from being pulled due to the fact that the first connecting piece 8 and the second connecting piece 9 are in the connected state when the flexible display panel is bent.
In addition, as shown in fig. 5, the deformation suppressing means includes an adhesive variable paste layer 11, and the adhesive variable paste layer 11 is provided on at least one of the main body and the flexible display panel 7. For example, the flexible display panel 7 is provided with a variable viscosity glue layer, and the variable viscosity glue layer 11 may be a pressure or temperature sensitive glue, i.e. the viscosity of the glue changes under the change of pressure or temperature. When the glue sensitive to pressure is adopted, after the overturning state is changed into the flat state, the position of the bulge 5 of the flexible display panel 7 can be manually pressed, so that the viscosity variable glue layer 11 is contacted with the main body, and under the action of the pressing pressure, the viscosity of the viscosity variable glue layer 11 is increased and is adhered with the main body, so that the deformation of the bulge 5 of the flexible display panel 7 is inhibited.
It will be understood that any reference above to the orientation or positional relationship of the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is based on the orientation or positional relationship shown in the drawings, which is done for convenience in describing the invention and to simplify the description, and is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (1)
1. A display device comprises a main body and a flexible display panel arranged on the main body, wherein the main body comprises a first unit and a second unit which are movably connected, and the flexible display panel at least covers the movably connected area; the flexible display panel is characterized in that at least in the movably connected area, an installation space is arranged between the flexible display panel and the main body, a deformation inhibiting device is arranged in the installation space, and the deformation inhibiting device is used for inhibiting the convex deformation of the flexible display panel;
the bending range of the display device is 0-360 degrees, and the display device at least comprises a folding state, a flat state and a turning state, wherein the folding state is a state that the flexible display panel forms two parts close to each other after being folded, the flat state is a state that the flexible display panel is in a flat state, and the turning state is a state that the flexible display panel forms parts deviating from each other after being folded;
the deformation inhibiting device comprises an air bag and a first connecting piece and a second connecting piece which are connected in a separable mode, one of the first connecting piece and the second connecting piece is fixedly connected with the flexible display panel, the other one of the first connecting piece and the second connecting piece is fixedly connected with the main body, and the air bag is used for separating the first connecting piece and the second connecting piece in an inflated state;
the deformation inhibiting device is used for connecting the first connecting piece and the second connecting piece together by manually pressing the convex position of the flexible display panel after the flexible display panel is converted from the opposite-turning state to the flat state so as to inhibit the protrusion of the flexible display panel, and then bending the flexible display panel towards the involution state; and the first connecting piece and the second connecting piece are separated through the air bag.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010407413.7A CN111445803B (en) | 2020-05-14 | 2020-05-14 | Display device |
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| CN202010407413.7A CN111445803B (en) | 2020-05-14 | 2020-05-14 | Display device |
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| CN111445803A CN111445803A (en) | 2020-07-24 |
| CN111445803B true CN111445803B (en) | 2023-04-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112365804B (en) * | 2020-11-26 | 2022-11-22 | 武汉天马微电子有限公司 | Display module and display device |
| CN113540192B (en) * | 2021-06-30 | 2023-02-24 | 武汉天马微电子有限公司 | Display panel and display device |
| CN114170916A (en) * | 2022-01-06 | 2022-03-11 | 京东方科技集团股份有限公司 | Display module, display method thereof and display device |
| CN115148109B (en) * | 2022-07-27 | 2023-07-25 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
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| KR102288238B1 (en) * | 2013-09-03 | 2021-08-09 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Light-emitting device |
| KR102424860B1 (en) * | 2015-11-04 | 2022-07-26 | 삼성디스플레이 주식회사 | Flexible display device and driving mathod of the same |
| CN106530972B (en) * | 2016-12-20 | 2017-12-29 | 深圳市华星光电技术有限公司 | The preparation method of flexible array substrate |
| CN107195253B (en) * | 2017-07-26 | 2020-08-25 | 武汉天马微电子有限公司 | Foldable flexible display device |
| CN107680490A (en) * | 2017-11-07 | 2018-02-09 | 成都爱可信科技有限公司 | A kind of air bag mechanism for display deformation |
| CN108322569B (en) * | 2018-02-24 | 2019-12-31 | 珠海格力电器股份有限公司 | Folding screen display method and folding mobile terminal |
| CN108766982B (en) * | 2018-05-29 | 2021-01-22 | 霸州市云谷电子科技有限公司 | Flexible display screen and flexible display device |
| CN110109513A (en) * | 2019-04-22 | 2019-08-09 | 武汉华星光电半导体显示技术有限公司 | Foldable display screen |
| CN110197621B (en) * | 2019-07-01 | 2021-11-12 | 武汉天马微电子有限公司 | Flexible foldable display device |
| CN110299473B (en) * | 2019-07-04 | 2022-04-15 | 京东方科技集团股份有限公司 | Display device |
| CN110675747B (en) * | 2019-09-16 | 2021-01-01 | 武汉华星光电半导体显示技术有限公司 | Foldable display device |
| CN110868485B (en) * | 2019-10-17 | 2021-10-12 | 努比亚技术有限公司 | Folding screen crease eliminating method, terminal and computer readable storage medium |
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