CN113160704A - Display device and bending method thereof - Google Patents
Display device and bending method thereof Download PDFInfo
- Publication number
- CN113160704A CN113160704A CN202110278392.8A CN202110278392A CN113160704A CN 113160704 A CN113160704 A CN 113160704A CN 202110278392 A CN202110278392 A CN 202110278392A CN 113160704 A CN113160704 A CN 113160704A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- sub
- driving
- display panel
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display device and a bending method thereof, and relates to the technical field of display. The display device comprises a display panel, a rotating shaft and a driving mechanism; the rotating shaft is positioned on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft; the display panel is bent by taking the rotating shaft as an axis; the driving mechanism is configured to drive the rotating shaft to move at least along a first direction in the process of bending the display panel. The invention is suitable for manufacturing the display device.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device and a bending method thereof.
Background
With the rapid development of display technology, the foldable display products attract a lot of attention. The folding position of the existing folding display product is fixed, and when a user uses the folding display product, the folding display product can only be folded at the fixed folding position. With the increase of the folding times, the area corresponding to the folding position is easy to damage, and the service life of the folding display product is greatly shortened.
At present, it is desirable to provide a new display device to solve the above problems.
Disclosure of Invention
The embodiment of the invention provides a display device and a bending method thereof, wherein the position of a folding shaft of the display device can be moved, so that a display panel is prevented from being folded at the same position, the damage probability of the folding position is reduced, and the service life is prolonged.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in one aspect, there is provided a display device including: the display device comprises a display panel, a rotating shaft and a driving mechanism; the rotating shaft is located on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft.
The display panel is configured to be bent with the rotating shaft as an axis.
The driving mechanism is configured to drive the rotating shaft to move at least along a first direction in the process of bending the display panel.
Optionally, the driving mechanism is further configured to drive the rotating shaft to move along a second direction during the process of bending the display panel, and the first direction is opposite to the second direction.
Optionally, the display device further includes a frame body disposed around a side of the display panel; the driving mechanism is located between the frame and the display panel.
The driving mechanism comprises a driving piece and a transmission piece which are connected, the driving piece is fixed with the frame body, and the transmission piece is connected with the rotating shaft.
Optionally, the driving member includes a first sub driving member and a second sub driving member disposed on two sides of the rotating shaft, the driving member includes a sliding member, a first sub driving member and a second sub driving member, and the first sub driving member and the second sub driving member are respectively disposed on two sides of the rotating shaft.
The first sub driving part is connected with the first sub transmission part, and the second sub driving part is connected with the second sub transmission part; the first sub driving piece and the second sub driving piece are respectively fixed with the frame body, the first sub driving piece and the second sub driving piece are respectively connected with the sliding piece, and the sliding piece is sleeved on the rotating shaft.
The first sub-transmission piece is configured to be driven by the first sub-driving piece to transmit, and the sliding piece is configured to drive the rotating shaft to move along the first direction under the transmission of the first sub-transmission piece.
The second sub transmission piece is configured to be driven by the second sub transmission piece to transmit, and the sliding piece is further configured to drive the rotating shaft to move along the second direction under the transmission of the second sub transmission piece.
Optionally, the first sub driving member and the second sub driving member have the same structure, and the first sub transmission member and the second sub transmission member have the same structure.
Optionally, the first sub-driving part comprises a driving motor, the sliding part comprises a sliding gear, and the first sub-driving part comprises a push rod; the driving motor is connected with the push rod, the push rod is connected with the sliding gear, and the sliding gear is sleeved on the rotating shaft;
the push rod is configured to drive the sliding gear under the driving of the driving motor, and the sliding gear drives the rotating shaft to move along the first direction.
Optionally, the driving part comprises a control motor, the transmission part comprises a linear transmission structure, the control motor is connected with the linear transmission structure, and the linear transmission structure is connected with the rotating shaft.
The linear transmission structure is configured to transmit in the first direction or in the second direction under the driving of the control motor.
Optionally, the control motor comprises a drive controller and a stepping motor which are electrically connected; the linear transmission structure comprises a transmission gear and a rack which are meshed with each other, the transmission gear is connected with the stepping motor, and the rack is vertically connected with the rotating shaft.
The drive controller is configured to input a first control signal or a second control signal to the stepping motor.
The stepping motor is configured to drive the transmission gear to rotate under the control of the first control signal; the transmission gear is configured to transmit under the driving of the stepping motor and drive the rack to move along the first direction; the rack is configured to move the rotating shaft in the first direction.
The stepping motor is configured to drive the transmission gear to rotate under the control of the second control signal; the transmission gear is configured to transmit under the driving of the stepping motor and drive the rack to move along the second direction; the rack is configured to move the rotating shaft in the second direction.
Optionally, the display device further comprises a stress sensor and a counter; the stress sensor is configured to detect stress of a folding region of the display panel; the counter is configured to detect a number of bending times of the display panel.
In another aspect, a method of bending a display device is provided, the method including:
the display panel is bent from a flattening state to a folding state by taking the rotating shaft as an axis;
in the process of bending the display panel, the driving mechanism drives the rotating shaft to move along the first direction; the display device comprises a display panel, a rotating shaft and a driving mechanism; the rotating shaft is located on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft.
The embodiment of the invention provides a display device and a bending method thereof. The display device comprises a display panel, a rotating shaft and a driving mechanism; the rotating shaft is positioned on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft; the display panel is bent by taking the rotating shaft as an axis; the driving mechanism is configured to drive the rotating shaft to move at least along a first direction in the process of bending the display panel. In the process of bending the display panel, the driving mechanism drives the rotating shaft to move at least along the first direction, so that the display panel can be bent by taking the rotating shaft as a folding shaft; therefore, the position of the folding shaft is not fixed, the display panel is prevented from being folded at the same position all the time, the damage probability of the display panel is reduced, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second display device according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a third display device according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a fourth display device according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating a bending and unfolding process of a display device according to an embodiment of the present invention; wherein, fig. 5(a), (B) and (C) are schematic structural views of three states of the display device during bending respectively;
FIG. 6 is a schematic diagram illustrating a bending and unfolding process of another display device according to an embodiment of the present invention; wherein, fig. 6(a), (B) and (C) are schematic structural views of three states of the display device during bending respectively;
fig. 7 (a), (b), and (c) are schematic diagrams of three structures of the stepping motor provided in the embodiment of the present invention during the rotation process.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiments of the present invention, unless otherwise specified, the terms "on" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structures or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In embodiments of the present invention, unless expressly stated or limited otherwise, the term "connected" is to be construed broadly, e.g., as meaning a fixed connection, an articulated connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions, and those skilled in the art can understand that the terms such as "first" and "second" are not limited to numbers.
With the advent of Organic Light Emitting Diode (OLED) display panels, flexible display products are coming out endlessly, and foldable display products are receiving much attention. During folding of the foldable display product, the folding area may be subjected to tensile or compressive stress, resulting in a shortened life span of the folding area. For example, after the OLED foldable display product with the hinge structure is folded for multiple times, on one hand, the service life of the hinge structure in the folding area is greatly shortened; on the other hand, the OLED flexible display panel may have display problems such as bright and dark lines due to stress, and even cause product damage, and the service life of the product is greatly shortened.
An embodiment of the present invention provides a display device, as shown in fig. 1, including: the display panel 1, the rotating shaft 2 and the driving mechanism 3; the rotating shaft 2 is located on the backlight side of the display panel 1 and is connected with the display panel 1 in a sliding mode, and the driving mechanism 3 is connected with the rotating shaft 2. Wherein, the display panel is configured to bend by taking the rotating shaft as an axis. The driving mechanism is configured to drive the rotating shaft to move at least along the first direction BA during the process of bending the display panel. Note that the display devices shown in fig. 1 and 2 are both in a bent state. In addition, the axis of the rotating shaft is parallel to the dotted line in fig. 1 and 2, and the dotted line is only for convenience of explaining the position of the rotating shaft and does not exist in an actual structure. The straight lines on both sides of the dotted line in fig. 1 and 2 are only for illustrating the moving range of the rotating shaft, and in practical applications, the moving amplitude of the rotating shaft is very slight.
The rotating shaft can be connected with the display panel in a sliding mode through a sliding mechanism, the sliding mechanism can be fixed to the backlight surface of the display panel and can also be fixed to the side face of the display panel, and the rotating shaft can be determined according to actual conditions.
The first direction may be the same as the opening direction of the folded display panel along the cross section perpendicular to the rotation axis direction as shown in fig. 5 (B); alternatively, the first direction may be opposite to an opening direction of a cross section of the folded display panel along a direction perpendicular to the rotation axis.
The specific structure of the drive mechanism is not limited herein. For example, the driving mechanism may include a driving member and a transmission member. The driving member may comprise an electric motor and the transmission member may comprise one or a combination of linear transmission, gear, rack, and transmission rod.
The display panel may be a flexible display panel. The specific type of flexible display panel is not limited herein. For example, the flexible display panel may be any one of an OLED (Organic Light Emitting Diode) display panel, a Micro OLED display panel, and a Mini LED display panel.
In practical application, in order to prevent the rotating shaft from deviating in direction during the moving process, a driving mechanism may be respectively disposed at two ends of the rotating shaft to simultaneously drive the rotating shaft to move at least along the first direction. Alternatively, only one driving mechanism may be disposed on the backlight side of the display panel, and the connection point between the driving mechanism and the rotating shaft may be disposed at the middle position of the rotating shaft, so as to ensure that the rotating shaft does not deviate in direction during the movement. The specific setting mode can be determined according to the actual situation.
It should be noted that the structures shown in fig. 1 to 7 provided by the embodiment of the present invention are simplified structures, and only an example of providing a driving mechanism at one end of a rotating shaft is shown.
An embodiment of the present invention provides a display device including a display panel, a rotation shaft, and a driving mechanism; the rotating shaft is positioned on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft; the display panel is configured to bend by taking the rotating shaft as an axis; the driving mechanism is configured to drive the rotating shaft to move at least along the first direction in the process of bending the display panel. In the process of bending the display panel, the driving mechanism drives the rotating shaft to move at least along the first direction, so that the display panel can be bent by taking the rotating shaft as a folding shaft; therefore, the position of the folding shaft is not fixed, the display panel is prevented from being folded at the same position all the time, the damage probability of the display panel is reduced, and the service life is prolonged.
Optionally, the driving mechanism is further configured to drive the rotation shaft to move in a second direction AB during the bending of the display panel, and the first direction BA is opposite to the second direction AB.
The drive mechanism may include a drive member and a transmission member. The driving direction of the driving piece can be controlled, so that the transmission direction of the transmission piece is controlled, and the moving direction of the rotating shaft is further controlled. The specific control mode of the driving member is not limited and can be determined according to actual conditions.
Optionally, referring to fig. 1, the display device further includes a frame (not shown in fig. 1), the frame being disposed around a side of the display panel 1; the drive mechanism 3 is located between the frame and the display panel. The driving mechanism 3 comprises a driving part 31 and a transmission part 32 which are connected, the driving part 31 is fixed with the frame body, and the transmission part 32 is connected with the rotating shaft 2.
The transmission piece is configured to transmit under the driving of the driving piece; the rotating shaft is configured to move in a first direction under the driving of the driving member or move in a second direction under the driving of the driving member. The driving direction of the driving piece can be controlled, so that the transmission direction of the transmission piece is controlled, and the moving direction of the rotating shaft is further controlled. The specific control mode of the driving member is not limited and can be determined according to actual conditions.
It should be noted that, in practical applications, the moving displacement of the rotating shaft may be within a preset range, and the preset range may be determined according to practical situations. The display device further comprises a back frame, the back frame covers the backlight surface of the display panel and is fixed with the frame body, and the rotating shaft is located between the display panel and the back frame.
According to the display device provided by the embodiment of the invention, in the process of bending the display panel, the driving mechanism drives the rotating shaft to move along the first direction or move along the second direction, and the display panel can be bent by taking the rotating shaft as the folding shaft, so that the position of the folding shaft is not fixed, the display panel is prevented from being folded at the same position all the time, the damage probability of the display panel is reduced, and the service life is prolonged.
The above-mentioned drive mechanism may include two types, and the first drive mechanism is structured as follows:
alternatively, the driving mechanism includes a driving member and a transmission member connected with each other, as shown in fig. 2, the driving member includes a first sub driving member 311 and a second sub driving member 312 disposed on both sides of the rotating shaft 2, the transmission member includes a sliding member (not shown in fig. 2), a first sub transmission member 321 and a second sub transmission member 322, and the first sub transmission member 321 and the second sub transmission member 322 are respectively disposed on both sides of the rotating shaft 2. The first sub driving member 311 is connected to the first sub transmission member 321, and the second sub driving member 312 is connected to the second sub transmission member 322; the first sub driving element 311 and the second sub driving element 312 are respectively fixed to a frame (not shown in fig. 2), the first sub transmission element 321 and the second sub transmission element 322 are respectively connected to a sliding element, and the sliding element is sleeved on the rotating shaft 2.
The connection of the first sub-transmission member and the sliding member specifically means that: the partial structure of the first sub-transmission member and the sliding member are not fixed, and the first sub-transmission member and the sliding member can move relative to each other within a preset range, namely, the first sub-transmission member is movably connected with the sliding member. The connection between the second sub-transmission member and the sliding member is similar to that between the first sub-transmission member, and is not described herein again.
The specific structure of the slider is not limited herein. For example, the sliding member may be a sliding gear, or may also be a roller, which may be determined according to actual conditions.
Here, whether the first sub driving member and the second sub driving member have the same structure is not limited. For example, the structures of the first sub driving element and the second sub driving element may be the same, or the structures of the first sub driving element and the second sub driving element may be different, which may be determined according to actual situations.
It is not limited to whether the first sub-transmission member and the second sub-transmission member have the same structure. For example, the structures of the first sub transmission member and the second sub transmission member may be the same, or the structures of the first sub transmission member and the second sub transmission member may be different, which may be determined according to actual situations.
The first sub-transmission piece is configured to be driven by the first sub-transmission piece to transmit, and the sliding piece is configured to drive the rotating shaft to move along the first direction under the transmission of the first sub-transmission piece. The second sub-transmission piece is configured to be driven by the second sub-transmission piece to transmit, and the sliding piece is configured to drive the rotating shaft to move along the second direction under the transmission of the second sub-transmission piece.
It should be noted that, referring to fig. 2, in the process that the first sub driving element 311 drives the first sub transmission element 321 for transmission, and the sliding element drives the rotating shaft 2 to move along the first direction BA under the transmission of the first sub transmission element 321, the second sub driving element 312 can drive the second sub transmission element 322 for transmission, so that the second sub transmission element 322 moves along the first direction BA, thereby preventing the second sub transmission element 322 from colliding with the sliding element, and preventing the product from being damaged.
It should be further noted that, in order to avoid that the display panel is always folded at the same position, the rotation shaft provided in the embodiment of the present invention may slightly move, and in practical applications, the movement displacement of the rotation shaft may be within a preset range, and the preset range may be determined according to an actual folding condition.
Alternatively, referring to fig. 2, the first sub driving member 311 and the second sub driving member 312 have the same structure, and the first sub transmission member 321 and the second sub transmission member 322 have the same structure.
Alternatively, referring to fig. 3, the first sub driving member of the display device 100 includes a driving motor 35, the sliding member includes a sliding gear 33, and the first sub driving member includes a push rod 34; the driving motor 35 is connected with the push rod 34, the push rod 34 is connected with the sliding gear 33, and the sliding gear 33 is sleeved on the rotating shaft 2. Wherein, the push rod 34 is configured to transmit power to the sliding gear 33 under the driving of the driving motor 35, and the sliding gear 33 drives the rotating shaft 2 to move along the first direction BA. In practical application, the moving displacement of the rotating shaft can be within a preset range, and the preset range can be determined according to practical conditions. Under the condition that the first sub-transmission part comprises the push rod, the moving displacement of the rotating shaft does not exceed the length of the push rod.
It should be noted that the driving motor 35 and the push rod 34 shown in fig. 3 can be combined together to form an integrated electric push rod, which is convenient for installation. In addition, fig. 3 illustrates that the second sub-transmission member includes a push rod 36 and a driving motor 37, and since the first sub-transmission member and the second sub-transmission member have the same structure, and detailed descriptions of the specific structures of the second sub-transmission member and the second sub-transmission member are omitted here.
In practical applications, the push rod may be made of a material having certain strength and flexibility, and the degree of bending of the push rod is very slight due to the small moving amplitude of the push rod in the first direction or the second direction.
The second drive mechanism has the following specific structure:
optionally, the driving mechanism includes a driving member and a transmission member connected to each other, as shown in fig. 4, the driving member includes a control motor 38, the transmission member includes a linear transmission structure 41, the control motor 38 is connected to the linear transmission structure 41, and the linear transmission structure 41 is connected to the rotating shaft 2. The linear transmission structure 41 is configured to transmit in the first direction BA or in the second direction AB by the driving of the control motor 38.
The specific structure of the linear transmission structure is not limited herein. For example, the linear transmission structure may include a connecting rod, and the connecting rod is directly driven to perform linear motion by a control motor; or, the linear transmission structure may include a transmission gear and a rack, and the transmission gear drives the rack to perform linear motion. The concrete can be determined according to actual conditions.
The specific type of the control motor is not limited herein. For example, the control motor may be a stepping motor, or may be a servo motor. The stepping motor and the servo motor can control the rotation direction of the stepping motor and the servo motor through a driver.
The stepping motor is a switching control element that converts an electrical pulse signal into an angular or linear displacement. When a pulse signal is input, the rotor rotates by an angle or advances by one step, the output angular displacement or linear displacement is proportional to the output pulse number, and the rotating speed is proportional to the pulse frequency.
Alternatively, as shown with reference to FIG. 4, the control motor 38 includes a drive controller and a stepper motor electrically connected; the linear transmission structure 41 comprises a transmission gear 39 and a rack 40 which are meshed with each other, the transmission gear 39 is connected with the stepping motor, and the rack 40 is vertically connected with the rotating shaft 2.
Wherein the driving controller is configured to input the first control signal or the second control signal to the stepping motor; the stepping motor is configured to drive the transmission gear to rotate under the control of a first control signal; the transmission gear is configured to transmit under the driving of the stepping motor and drive the rack to move along a first direction; the rack is configured to drive the rotating shaft to move along a first direction; the stepping motor is configured to drive the transmission gear to rotate under the control of a second control signal; the transmission gear is configured to transmit under the driving of the stepping motor and drive the rack to move along a second direction; the rack is configured to drive the rotating shaft to move along the second direction.
In practical applications, the moving displacement of the rotating shaft can be within a preset range, and the preset range can be determined according to the actual folding condition. In the case where the linear transmission structure includes a transmission gear and a rack gear which are engaged with each other, the moving displacement of the rotation shaft does not exceed the length of the rack gear.
In practical applications, the rack may be made of a material having certain strength and flexibility, and the rack is actually bent only slightly due to the small moving amplitude of the rotating shaft in the first direction or the second direction.
The kind of the stepping motor is not limited herein. The stepping motor can be a reaction type stepping motor, or can also be a permanent magnet type stepping motor, and the determination can be determined according to actual conditions.
Referring to fig. 7, in the stepping motor shown in fig. 7, the structures indicated by A, B, C, A, B, and C are stators, and the structures indicated by a, B, C, and d at the center are rotors.
A first control signal is input to the stepping motor through the driving controller, and the first control signal can control the stator in the stepping motor to be respectively electrified according to the sequence of electrifying the stator a and the stator a, electrifying the stator B and the stator B, and electrifying the stator C and the stator C, so that the rotors a, B, C and d rotate by preset angles in the counterclockwise direction according to the processes shown in the graphs (a), (B) and (C) in fig. 7.
And inputting a second control signal to the stepping motor through the driving controller, wherein the second control signal can control the stator in the stepping motor to be respectively electrified according to the sequence of electrifying the stator C and the stator C, electrifying the stator B and the stator B, and electrifying the stator A and the stator A, so that the rotors a, B, C and d rotate by preset angles in the clockwise direction. Optionally, the display device further comprises a stress sensor and a counter; the stress sensor is configured to detect stress of a folding region of the display panel; the counter is configured to detect a number of bending times of the display panel.
In practical applications, the stress sensor may be disposed in a folding area of the display panel, and in order not to affect normal use of the display device, the stress sensor and the display panel may be detachably connected, so as to improve flexibility of use. The counter may be disposed on a side surface or a backlight surface of the display panel.
In order to facilitate the user to monitor the stress and the bending times of the folding area of the display panel in time, the stress sensor and the counter can be respectively in communication connection with the display panel so as to display the stress test result and the bending times in the display panel.
An embodiment of the present invention further provides a bending method of a display device, including:
s01, bending the display panel from a flat state to a folded state by taking the rotating shaft as an axis;
s02, in the process of bending the display panel, the driving mechanism drives the rotating shaft to move along the first direction; the display device comprises a display panel, a rotating shaft and a driving mechanism; the rotating shaft is positioned on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft.
In the process that the display panel is bent from the flattening state shown in the (A) diagram in the figure 5 to the folding state shown in the (B) diagram in the figure 5 along the OC direction by taking the rotating shaft as the shaft, the driving mechanism drives the rotating shaft to move along the first direction BA; the first direction BA is the same as the opening direction of the folded display panel along the cross section perpendicular to the rotation axis direction as shown in fig. 5 (B).
In practical applications, the display panel can be further bent from the flat state shown in fig. 6(a) to the folded state shown in fig. 6(B) along the OD direction with the rotating shaft as the axis, and the driving mechanism drives the rotating shaft to move along the second direction AB during the bending process; the second direction AB is the same as the opening direction of the folded display panel along the cross section perpendicular to the rotation axis direction as shown in fig. 6 (B).
The above-described display device in the flattened state shown in fig. 5(a) and the display device in the flattened state shown in fig. 6(a) have the same structure, and the structures shown in fig. 5(a) and 6(a) are simplified structures.
The above-mentioned flat state refers to a state where the light emitting surfaces of the display panel or the display device face the same direction, and in the flat state as shown in fig. 5(a) and fig. 6(a), the rotating shaft is located at the middle position of the display panel, that is, at the position 1 as shown in fig. 5(a) or fig. 6 (a).
Besides the bending method, the display panel can be bent in other modes. For example, the folding may be performed, and of course, other bending manners may also be performed, which is not limited herein.
In the process that the display panel is bent in the OC direction from the flat state shown in fig. 5(a) to the folded state shown in fig. 5(B) with the rotation shaft as an axis, the rotation shaft moves from the position 1 to the position 2; after the display panel is unfolded from the folded state shown in fig. 5(B) in the OE direction to the state shown in fig. 5(C), the hinge is still at position 2.
The display panel shown in fig. 4 may be bent as described above. Of course, in the process of bending the display panel, when the display panel is bent from the flat state as shown in fig. 5(a) along the OC direction with the rotating shaft as the axis, the driving mechanism may also drive the rotating shaft to move along the second direction AB; when the display panel is bent in the OD direction from the flat state shown in fig. 6(a) with the rotation shaft as an axis, the driving mechanism may also drive the rotation shaft to move in the first direction BA.
According to the bending method provided by the embodiment of the invention, in the process of bending the display panel, the driving mechanism drives the rotating shaft to move along the first direction or the second direction, so that the display panel can be bent by taking the rotating shaft as the folding shaft; therefore, the position of the folding shaft is not fixed, the display panel is prevented from being folded at the same position all the time, the damage probability of the display panel is reduced, and the service life is prolonged.
The bending process of the structure of the first sub-driving member including the driving motor 35, the sliding member including the sliding gear 33, and the first sub-driving member including the push rod 34 of the display device 100 shown in fig. 3 is specifically described as follows:
s1, when the display panel is bent from the flat state shown in fig. 5(a) to the folded state shown in fig. 5(B) along the OC direction with the rotation shaft as the axis, the sliding gear 33 drives the rotation shaft 2 to move along the first direction BA.
In the process, the push rod 34 is driven by the driving motor 35 to transmit power to the sliding gear 33, the sliding gear 33 drives the rotating shaft 2 to move along the first direction BA, and the rotating shaft moves from the position 1 to the position 2.
S2, the display panel is unfolded from the folded state shown in fig. 5(B) to the unfolded state shown in fig. 5(C), and the rotating shaft is located at the position moved in the step S1.
In this process, the rotary shaft 2 is still at the position 2, the sliding gear 33 rotates and the contact position with the push rod 34 changes from the step S1.
S3, the folding is continued according to the bending mode of S1-S2, and the rotating shaft 2 is continued to move along the direction BA.
Note that, the process OF folding the display panel in a folding manner as shown in fig. 6 is similar to the above-described process, and the rotation shaft moves from the position 1 to the position 3 in the process OF folding the display panel in the OD direction to the folding state as shown in fig. 6(B) and unfolding the display panel in the OF direction to the flat state as shown in fig. 6(C) from the flat state as shown in fig. 6 (a). The detailed bending method is not described herein. In practical application, a user can fold the display panel back and forth according to practical requirements, so that the rotating shaft can move back and forth.
Taking the example that the driving member of the display device 100 shown in fig. 4 includes the stepping motor 35 and the driving member includes the linear transmission structure 41, how to control the stepping motor to realize the reciprocating motion of the rack 40, and further drive the rotating shaft 2 to move along the first direction or the second direction will be described in detail.
It should be noted that, referring to fig. 7, the structures marked A, B, C, A, B, and C in the stepping motor shown in fig. 7 are all stators, and the structures marked a, B, C, and d at the central position in the drawing are all rotors, wherein the stator a and the stator a are oppositely arranged, the stator B and the stator B are oppositely arranged, and the stator C are oppositely arranged; rotor a and rotor c are oppositely arranged, and rotor b and rotor d are oppositely arranged. The stator is wound with wires not shown in fig. 7.
The method of controlling the stepping motor by the driving controller is as follows:
s11, referring to fig. 7 (a), the stator a of the stepping motor is controlled by the drive controller to be energized.
At this time, a magnetic field is formed between the stator a and the stator a, and if the rotor and the magnetic field have a certain angle in the axial direction, the stator is magnetized under the action of the magnetic field, and the rotor is attracted to rotate, so that the rotor a and the rotor c rotate to the positions consistent with the axial lines of the stator a and the stator a, and thus the axial lines of the rotor a and the rotor c are parallel to the axial lines of the stator a and the stator a.
S12, referring to fig. 7 (B), the stator B of the stepping motor is controlled by the drive controller to be energized.
At this time, a magnetic field is formed between the stator B and the stator B, so that the rotor B and the rotor d rotate to positions coincident with the axes of the stator B and the stator B, and thus, the axes of the rotor B and the rotor d are parallel to the axes of the stator B and the stator B.
S13, referring to fig. 7 (C), the stator C of the stepping motor is controlled by the drive controller to be energized.
At this time, a magnetic field is formed between the stator C and the stator C, so that the rotor a and the rotor C rotate to positions coincident with the axes of the stator C and the stator C, and thus, the axes of the rotor a and the rotor C are parallel to the axes of the stator C and the stator C.
S14, controlling the stepping motor to circularly electrify the stator A and the stator A, then electrifying the stator B and the stator B, and then electrifying the stator C and the stator C according to the sequence of electrifying the stator A and the stator A through the driving controller; causing the rotor to continue to rotate.
Through the above-mentioned steps of S11-S13, the rotor is rotated counterclockwise by a preset angle according to the process shown in fig. 7 (a), (b), and (c), which may be set as needed, and for example, the preset angle may be 30 °.
It should be noted that, a first control signal is input to the stepping motor through the driving controller, and the first control signal can control the stator in the stepping motor to be respectively energized according to the sequence of energization of the stator a and the stator a, energization of the stator B and the stator B, and energization of the stator C and the stator C, so that the rotors a, B, C, and d rotate by a preset angle in the counterclockwise direction according to the process shown in fig. 7 (a), (B), and (C).
And inputting a second control signal to the stepping motor through the driving controller, wherein the second control signal can control the stator in the stepping motor to be respectively electrified according to the sequence of electrifying the stator C and the stator C, electrifying the stator B and the stator B, and electrifying the stator A and the stator A, so that the rotors a, B, C and d rotate by preset angles in the clockwise direction.
In addition, the frequency of the first control signal or the second control signal input to the stepping motor by the driving controller is controlled, so that the rotation rate of the rotor can be controlled, and the specific process can refer to the related technology of the stepping motor, and only the content related to the invention point is described here, and is not described again.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A display device is characterized by comprising a display panel, a rotating shaft and a driving mechanism; the rotating shaft is positioned on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft;
the display panel is bent by taking the rotating shaft as an axis;
the driving mechanism is configured to drive the rotating shaft to move at least along a first direction in the process of bending the display panel.
2. The display device according to claim 1,
the driving mechanism is further configured to drive the rotating shaft to move along a second direction in the process of bending the display panel, and the first direction is opposite to the second direction.
3. The display device according to claim 2, further comprising a frame body provided around a side of the display panel; the driving mechanism is positioned between the frame body and the display panel;
the driving mechanism comprises a driving piece and a transmission piece which are connected, the driving piece is fixed with the frame body, and the transmission piece is connected with the rotating shaft.
4. The display device according to claim 3, wherein the driving member comprises a first sub driving member and a second sub driving member disposed on two sides of the rotating shaft, and the transmission member comprises a sliding member, a first sub transmission member and a second sub transmission member, the first sub transmission member and the second sub transmission member being respectively disposed on two sides of the rotating shaft;
the first sub driving part is connected with the first sub transmission part, and the second sub driving part is connected with the second sub transmission part; the first sub driving piece and the second sub driving piece are respectively fixed with the frame body, the first sub driving piece and the second sub driving piece are respectively connected with the sliding piece, and the sliding piece is sleeved on the rotating shaft;
the first sub transmission piece is configured to be driven by the first sub transmission piece to transmit, and the sliding piece is configured to drive the rotating shaft to move along the first direction under the transmission of the first sub transmission piece;
the second sub transmission piece is configured to be driven by the second sub transmission piece to transmit, and the sliding piece is further configured to drive the rotating shaft to move along the second direction under the transmission of the second sub transmission piece.
5. A display device as claimed in claim 4, wherein the first and second sub-drive members are of identical construction and the first and second sub-transmission members are of identical construction.
6. The display device of claim 5, wherein the first sub-driver comprises a drive motor, the slider comprises a sliding gear, and the first sub-driver comprises a push rod; the driving motor is connected with the push rod, the push rod is connected with the sliding gear, and the sliding gear is sleeved on the rotating shaft;
the push rod is configured to be driven by the driving motor to transmit power to the sliding gear, and the sliding gear drives the rotating shaft to move along the first direction.
7. The display device as claimed in claim 3, wherein the driving member comprises a control motor, the driving member comprises a linear transmission structure, the control motor is connected with the linear transmission structure, and the linear transmission structure is connected with the rotating shaft;
the linear transmission structure is configured to transmit in the first direction or in the second direction under the driving of the control motor.
8. The display device according to claim 7, wherein the control motor includes a driving controller and a stepping motor electrically connected; the linear transmission structure comprises a transmission gear and a rack which are meshed with each other, the transmission gear is connected with the stepping motor, and the rack is vertically connected with the rotating shaft;
the drive controller is configured to input a first control signal or a second control signal to the stepping motor;
the stepping motor is configured to drive the transmission gear to rotate under the control of the first control signal; the transmission gear is configured to transmit under the driving of the stepping motor and drive the rack to move along the first direction; the rack is configured to drive the rotating shaft to move along the first direction;
the stepping motor is configured to drive the transmission gear to rotate under the control of the second control signal; the transmission gear is configured to transmit under the driving of the stepping motor and drive the rack to move along the second direction; the rack is configured to drive the rotating shaft to move along the second direction.
9. The display device according to any one of claims 1 to 8, wherein the display device further comprises a stress sensor and a counter; the stress sensor is configured to detect stress of a folding region of the display panel; the counter is configured to detect a number of bending times of the display panel.
10. A method of bending a display device according to any of claims 1-9, the method comprising:
the display panel is bent from a flattening state to a folding state by taking the rotating shaft as an axis;
in the process of bending the display panel, the driving mechanism drives the rotating shaft to move along the first direction; the display device comprises a display panel, a rotating shaft and a driving mechanism; the rotating shaft is located on the backlight side of the display panel and is in sliding connection with the display panel, and the driving mechanism is connected with the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278392.8A CN113160704B (en) | 2021-03-15 | 2021-03-15 | Display device and bending method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278392.8A CN113160704B (en) | 2021-03-15 | 2021-03-15 | Display device and bending method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113160704A true CN113160704A (en) | 2021-07-23 |
| CN113160704B CN113160704B (en) | 2023-06-02 |
Family
ID=76887182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110278392.8A Active CN113160704B (en) | 2021-03-15 | 2021-03-15 | Display device and bending method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113160704B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114399952A (en) * | 2022-01-20 | 2022-04-26 | 武汉天马微电子有限公司 | Display device and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160302316A1 (en) * | 2015-04-07 | 2016-10-13 | Samsung Display Co., Ltd. | Foldable display |
| CN108922408A (en) * | 2018-09-19 | 2018-11-30 | 云谷（固安）科技有限公司 | A kind of foldable support device and foldable flexible display device |
| CN208189115U (en) * | 2018-03-12 | 2018-12-04 | 深圳市柔宇科技有限公司 | Bend component and flexible display apparatus |
| CN210518451U (en) * | 2019-12-27 | 2020-05-12 | Oppo广东移动通信有限公司 | Foldable electronic device |
| CN111862813A (en) * | 2020-07-21 | 2020-10-30 | 维沃移动通信有限公司 | Electronic device |
-
2021
- 2021-03-15 CN CN202110278392.8A patent/CN113160704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160302316A1 (en) * | 2015-04-07 | 2016-10-13 | Samsung Display Co., Ltd. | Foldable display |
| CN208189115U (en) * | 2018-03-12 | 2018-12-04 | 深圳市柔宇科技有限公司 | Bend component and flexible display apparatus |
| CN108922408A (en) * | 2018-09-19 | 2018-11-30 | 云谷（固安）科技有限公司 | A kind of foldable support device and foldable flexible display device |
| CN210518451U (en) * | 2019-12-27 | 2020-05-12 | Oppo广东移动通信有限公司 | Foldable electronic device |
| CN111862813A (en) * | 2020-07-21 | 2020-10-30 | 维沃移动通信有限公司 | Electronic device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114399952A (en) * | 2022-01-20 | 2022-04-26 | 武汉天马微电子有限公司 | Display device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113160704B (en) | 2023-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1354670B1 (en) | Multi-finger hand device | |
| JP4797020B2 (en) | Actuator | |
| US20060131908A1 (en) | Joint drive mechanism and robot hand | |
| CN113160704B (en) | Display device and bending method thereof | |
| US20220078931A1 (en) | Curling device and flexible display device | |
| EP2689900A1 (en) | Driving method for joint device | |
| CN103822342A (en) | Surface plate running mechanism and air-conditioner indoor unit with same | |
| US7926370B2 (en) | Rotation and extension/retraction link mechanism | |
| JP6507094B2 (en) | manipulator | |
| CN113305868A (en) | Multi-degree-of-freedom robot finger-based joint | |
| US11708882B2 (en) | Head mechanism and robot | |
| CN111219408B (en) | Screen module and electronic equipment | |
| JPH09131687A (en) | Robot arm | |
| CN205737776U (en) | A kind of obstacle detouring climbing robot | |
| CN206934740U (en) | The dynamic structure of double end power output | |
| EP4098413A1 (en) | Finger assembly and robot hand comprising same | |
| KR101213246B1 (en) | Drive device and driving method for motor using ipmc actuator | |
| CN201966135U (en) | Shape memory alloy wire winding type separated drive mechanism | |
| US20030201677A1 (en) | Step motor with multiple stators | |
| JP7456824B2 (en) | Link mechanism and link unit | |
| CN105857426B (en) | A kind of obstacle detouring climbing robot and its driving method | |
| CN112202306A (en) | Electric device | |
| CN115284326A (en) | Multi-degree-of-freedom wrist joint, manipulator and robot | |
| CN217579891U (en) | Floodgate machine power pack and floodgate machine | |
| CN117321982A (en) | Bendable assembly and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |