CN109036142B - Folding display device and control method of folding display device - Google Patents
Folding display device and control method of folding display device Download PDFInfo
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- CN109036142B CN109036142B CN201811003884.0A CN201811003884A CN109036142B CN 109036142 B CN109036142 B CN 109036142B CN 201811003884 A CN201811003884 A CN 201811003884A CN 109036142 B CN109036142 B CN 109036142B
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- 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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Abstract
The invention discloses a folding display device and a control method of the folding display device, and belongs to the technical field of display. The folding display device includes: the folding bracket comprises at least two sub-brackets which are rotatably connected; the stretching assembly comprises a stretching part respectively positioned on each sub-bracket; the flexible display is arranged in the folding bracket; the stretching assembly is configured to stretch the flexible display by stretching members on the sub-mounts located on both sides of the crease when the flexible display creates the crease. The invention provides a flexible display device which comprises a folding support, a stretching assembly and a flexible display connected with the stretching assembly. The problem of folding display device's display effect relatively poor among the correlation technique is solved. The display effect of the folding display device is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a foldable display device and a control method of the foldable display device.
Background
A folding display device is a display device having a folding function.
A folding display device in the related art includes a flexible display. When the flexible display is folded under the action of external force, the flexible display can also be restored to a flat state under the action of the external force.
In the process of implementing the invention, the inventor finds that the related art has at least the following problems: after being folded, the flexible display may generate creases when being restored to a flat state, thereby reducing the display effect of the folding display device.
Disclosure of Invention
The embodiment of the invention provides a folding display device and a control method of the folding display device, which can solve the problem that in the prior art, when a flexible display is folded and returns to a flat state, creases are possibly generated, and the display effect of the folding display device is reduced. The technical scheme is as follows:
according to a first aspect of the present invention, there is provided a folding display device comprising:
the folding bracket comprises at least two rotatably connected sub-brackets;
a tension assembly including tension members respectively located on each of the sub-mounts;
a flexible display disposed in the folding stand and connected to the tension member on each of the sub-stands;
wherein the stretching assembly is configured to stretch the flexible display by stretching members on the sub-mounts located on both sides of the crease when the crease is generated in the flexible display.
Optionally, the folding display device includes: a length detection component and a crease determination component,
the length detection assembly is used for determining whether the length of the flexible displays on any two adjacent sub-supports in a specified direction is smaller than a standard length when any two adjacent sub-supports are positioned on the same plane, wherein the standard length is the length of the flexible displays on any two adjacent sub-supports in the specified direction when the flexible displays on the any two adjacent sub-supports are positioned on the same plane;
the crease determining component is used for determining that the flexible display positioned on any two adjacent sub-supports has creases when the length is smaller than the standard length, and the specified direction is perpendicular to the rotating shaft connected in a rotating mode and is parallel to the direction of any two adjacent sub-supports positioned on the same plane.
Optionally, the number of the sub-brackets is 2,
the length detection assembly comprises a distance sensor, the distance sensor is arranged at one end, away from the other sub-support, of any one of the 2 sub-supports and used for determining whether the length of the flexible display on any two adjacent sub-supports in the specified direction is smaller than the standard length or not according to the shortest distance between any two adjacent sub-supports and the flexible display when the two adjacent sub-supports are located on the same plane.
Optionally, the distance sensor includes at least one of an optical distance sensor, an infrared distance sensor, and an ultrasonic distance sensor.
Optionally, the foldable display device further includes: the folding sensor is arranged on the base plate,
the folding sensor is used for determining whether any two adjacent sub-supports in the at least two rotatably connected sub-supports are coplanar;
the folding sensor is also used for controlling the stretching components on any two adjacent sub-supports to stop stretching when any two adjacent sub-supports are not coplanar.
Optionally, the folding sensor is located between any two adjacent sub-brackets.
Optionally, the stretching member is bonded to the flexible display.
Optionally, the flexible display includes an optical film layer, a flexible display panel, and a touch panel disposed between the optical film layer and the flexible display panel.
Optionally, the flexible display includes an optical film layer and a flexible display panel.
Optionally, the flexible display includes a touch panel, a flexible display panel, and an optical film layer disposed between the touch panel and the flexible display panel.
According to a second aspect of the present invention, there is provided a control method of a folding display device of the first aspect, the folding display device including: a folding stand comprising at least two rotationally connected sub-stands; a tension assembly including tension members respectively located on each of the sub-mounts; a flexible display disposed in the folding stand and connected to a tension member on each of the sub-stands,
the method comprises the following steps:
detecting whether a crease is generated on the flexible display;
when the flexible display generates a crease, the flexible display is stretched by stretching members on the sub-supports located at both sides of the crease.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
a flexible display device includes a folding bracket, a stretching assembly and a flexible display connected with the stretching assembly, when a crease is generated on the flexible display, the flexible display is stretched by stretching components on sub-brackets positioned at two sides of the crease, so that the crease is flattened. The problem of flexible display among the relevant art after being folded, probably produce the crease when recovering to the flat state, reduced folding display device's display effect is solved. The display effect of the folding display device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a foldable display device in the related art;
FIG. 2 is a schematic structural diagram of a foldable display device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another foldable display device according to an embodiment of the present invention;
fig. 4 is an exploded view of the folding display device shown in fig. 3;
FIG. 5 is a schematic view of the folding display apparatus shown in FIG. 4 in a folded state;
fig. 6 is a schematic structural diagram of a flexible display in a foldable display device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another flexible display in the foldable display device provided in the embodiment of the present invention;
fig. 8 is a schematic structural diagram of another flexible display in the foldable display device provided in the embodiment of the present invention;
fig. 9 is a flowchart of a control method for a foldable display device according to an embodiment of the present invention.
With the above figures, there are shown certain embodiments of the invention and will be described in more detail hereinafter. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The flexible display device is a display device having a bending function, and may have a thickness of 1 mm to 10 mm.
However, when the flexible display device is bent for a long time (the inner side of the bent portion is subjected to compressive stress and the outer side is subjected to tensile stress), a crease may be generated at the bent portion. Fig. 1 is a schematic structural diagram of a foldable display device in the related art after being folded. It can be seen that the fold h seriously affects the display effect of the folding display device. And the crease is difficult to disappear spontaneously, and the folding display device is influenced continuously for a long time.
Embodiments of the present invention provide a foldable display device, which can solve the above problems in the related art.
Fig. 2 is a schematic structural diagram of a foldable display device according to an embodiment of the present invention. The folding display device 20 may include:
the folding bracket 21, the folding bracket 21 comprises at least two sub-brackets 211 which are rotatably connected.
And a stretching assembly 22, wherein the stretching assembly 22 comprises a stretching part 221 which is respectively positioned on each sub-bracket 211.
And a flexible display 23, wherein the flexible display 23 is arranged in the folding bracket 21 and connected with the stretching part 221 on each sub-bracket 211.
Wherein the stretching assembly 22 is configured to stretch the flexible display 23 by the stretching members 221 on the sub-brackets 211 located at both sides of the crease h when the flexible display 23 generates the crease h. As shown in fig. 2, the two stretching members 211 stretch the flexible display 23, so as to flatten the crease h on the flexible display 23, thereby improving the flatness of the flexible display 23 and further improving the display effect of the flexible display 23.
Fig. 2 shows the number of the sub-racks as 2, but the number of the sub-racks may be other numbers, such as 3, 4, and 5, and the embodiment of the present invention is not limited.
In summary, the foldable display device provided in the embodiments of the present invention includes a foldable bracket, a stretching assembly, and a flexible display connected to the stretching assembly, wherein when a crease is generated on the flexible display, the flexible display is stretched by the stretching members on the sub-brackets located at two sides of the crease, so that the crease is flattened. The problem of flexible display among the relevant art after being folded, probably produce the crease when recovering to the flat state, reduced folding display device's display effect is solved. The display effect of the folding display device is improved.
Fig. 3 is a schematic structural diagram of another foldable display device provided in the embodiment of the present invention, which is adjusted based on the foldable display device shown in fig. 2.
Optionally, the foldable display device 20 includes: a length detection component 24 and a crease determination component 25.
The length detection assembly 24 is used to determine whether the length of the flexible display 23 in the designated direction f on any two adjacent sub-supports 211 is smaller than the standard length when any two adjacent sub-supports 211 are located on the same plane in at least two rotationally connected sub-supports 211. The standard length is the length in a designated direction when the flexible displays 23 on any two adjacent sub-mounts 211 are located on the same plane. Wherein, since the flexible displays 23 on any two adjacent sub-supports 211 are difficult to be located on the same plane due to the possible existence of creases in the folded flexible displays 23, the flexible displays 23 on any two adjacent sub-supports 211 being located on the same plane may refer to the length of the flexible display 23 in the designated direction f when the flexible display 23 has never been folded. The specified direction f is a direction perpendicular to the rotation axis x (axis perpendicular to the paper) of the rotational connection and parallel to the arbitrary two adjacent sub-holders 211 located on the same plane.
The crease determining component 25 is configured to determine that the flexible display 23 located on any two adjacent sub-brackets 211 has a crease when the length of the flexible display 23 located on any two adjacent sub-brackets 211 in the designated direction f is smaller than the standard length.
Optionally, the number of the sub-cradles 211 is 2. The crease determining component 24 comprises a distance sensor 241, the distance sensor 241 is arranged at one end of any one of the 2 sub-supports 211 far away from the other sub-support, and is used for determining whether the length of the flexible display 23 on any two adjacent sub-supports in the specified direction f is smaller than the standard length according to the shortest distance s between any two adjacent sub-supports 211 and the flexible display 23 when the two adjacent sub-supports are located on the same plane.
Wherein, when there is a crease in the flexible display 23, the shortest distance s is increased due to the pulling of the crease, the distance sensor 241 can compare the instantly measured s with the shortest distance of the flexible display 23 when the flexible display 23 has not been folded yet, and if the instantly measured s is larger, it can be determined that the length of the flexible display 23 on any two adjacent sub-supports in the specified direction f is smaller than the standard length.
Optionally, the distance sensor 241 includes at least one of an optical distance sensor, an infrared distance sensor, and an ultrasonic distance sensor. In addition, the distance sensor 241 may also include other sensors for measuring distance, and the embodiment of the present invention is not limited.
The optical distance sensor can emit a short light pulse, measure the time from the emission of the light pulse to the reflection of the light pulse by the object, and calculate the distance between the optical distance sensor and the object according to the length of the time. The infrared distance sensor comprises an infrared transmitting tube and an infrared receiving tube, and when infrared rays transmitted by the transmitting tube are received by the receiving tube after being reflected by an object, the distance between the infrared distance sensor and the object can be determined according to the intensity of the received infrared rays. The ultrasonic distance sensor can comprise an ultrasonic generator and an ultrasonic receiver, wherein the ultrasonic generator can emit ultrasonic waves, the ultrasonic waves can be received by the ultrasonic receiver after being reflected by the object, and the distance between the ultrasonic distance sensor and the object can be determined according to the length of the time for returning the ultrasonic waves.
Optionally, the foldable display device 20 further includes: the fold sensor 26.
The fold sensor 26 is used to determine whether any two adjacent sub-mounts 211 of the at least two pivotally connected sub-mounts 211 are coplanar.
The folding sensor 26 is further configured to control the stretching members 221 on any two adjacent sub-brackets 211 to stop stretching when any two adjacent sub-brackets 211 are not coplanar.
When any two adjacent sub-frames 211 are not coplanar, indicating that the foldable display device 20 is being bent, the flexible display 23 may be damaged if the stretching member 221 continues to stretch the flexible display 23, so that the stretching member 221 may be controlled to stop stretching the flexible display 23 to protect the flexible display 23.
Optionally, the fold sensor 26 is located between any two adjacent subsupports 211. The sub-frames 211 are generally a rotating structure therebetween, which may be a rotating shaft, a toothed rotating structure or other rotating structures, and the embodiments of the present invention are not limited thereto. The folding sensor 26 located in these rotating structures can detect that the adjacent sub-supports 211 are not coplanar at the first time when the two adjacent sub-supports 211 rotate.
Optionally, the stretching member 221 is bonded to the flexible display 23. The bonding connection mode can firmly connect the stretching member 221 and the flexible display 23 together, so as to prevent the stretching member 221 from falling off from the flexible display 23 when the flexible display 23 is stretched.
In addition, the stretching member 221 may be connected to the flexible display 23 by other means, such as clamping, bolting, and the like, and the embodiment of the present invention is not limited thereto.
As shown in fig. 4, which is an exploded view of the foldable display device shown in fig. 3. The sub-bracket included in the folding bracket 21 may be a plate-shaped bracket. The stretching member 221 in the stretching assembly 22 may also be a plate-shaped structure, and the plate-shaped stretching member 221 may be connected to both the folding bracket 21 and the flexible display 23. The flexible display 23 may be provided with a bending region q, and when the folding bracket 21 is folded, the flexible display 23 located in the bending region q may be bent together with the folding bracket 21. Fig. 5 is a schematic structural view of the folded display device shown in fig. 4 after being folded. The two sub-frames 211 are folded by the rotating structure 212 therebetween, and then the flexible display 23 is driven to fold. Wherein, the distance between the flexible displays 23 on different sub-brackets 211 except the flexible display 23 of the rotating structure 212 may be 2 mm to 12 mm.
In the foldable display device provided by the embodiment of the invention, the structure of the flexible display can include various structures. Several of them are described below as examples.
Fig. 6 is a schematic structural diagram of a flexible display in each of the foldable display devices. The flexible display 23 includes an optical film layer 231, a flexible display panel 232, and a touch panel 233 disposed between the optical film layer 231 and the flexible display panel 232. The optical film 231 may be a polarizer, which is used to increase transmittance and improve the display effect of the flexible display.
Optionally, a transparent protection layer 234 for protecting the internal structure of the flexible display may be further disposed on a side of the optical film layer 231 away from the touch panel 233.
Optionally, a back film 235 may be further disposed on a side of the flexible display panel 232 away from the touch panel 233, where the back film 235 is also used to protect internal structures of the flexible display. In addition, a metal sheet (not shown in fig. 6) may be further disposed on a side of the back film 235 away from the flexible display panel 232, where the metal sheet has high flexibility, is relatively firm, is not easily damaged, and may be used to further protect the internal structure of the flexible display.
Optionally, an adhesive film (not shown in fig. 6) may be disposed between any two adjacent structures in the flexible display 23 for bonding the structures to improve the stability of the structures in the flexible display 23. The adhesive film may include an optical glue.
Fig. 7 is a schematic structural diagram of another flexible display in each of the foldable display devices. The flexible display 23 includes an optical film layer 231 and a flexible display panel 232.
Optionally, a transparent protection layer 234 for protecting the internal structure of the flexible display may be further disposed on a side of the optical film layer 231 away from the touch panel 233. The transparent protection layer 234 may be a cover film (english) or a cover glass (english). The material of the cover film may be polyethylene glycol terephthalate (PET) or Polyimide (PI).
Optionally, a back film 235 may be further disposed on a side of the flexible display panel 232 away from the touch panel 233, where the back film 235 is also used to protect internal structures of the flexible display.
In addition, a metal sheet (not shown in fig. 6) may be further disposed on a side of the back film 235 away from the flexible display panel 232, where the metal sheet has high flexibility, is relatively firm, is not easy to break, and may be used to further protect the internal structure of the flexible display.
Optionally, an adhesive film (not shown in fig. 7) may be disposed between any two adjacent structures in the flexible display 23 for bonding the structures to improve the stability of the structures in the flexible display 23. The adhesive film may include an optical glue.
Fig. 8 is a schematic structural diagram of another flexible display in each of the foldable display devices. The flexible display 23 includes a touch panel 233, a flexible display panel 232, and an optical film layer 231 disposed between the touch panel 233 and the flexible display panel 232.
In summary, the foldable display device provided in the embodiments of the present invention includes a foldable bracket, a stretching assembly, and a flexible display connected to the stretching assembly, wherein when a crease is generated on the flexible display, the flexible display is stretched by the stretching members on the sub-brackets located at two sides of the crease, so that the crease is flattened. The problem of flexible display among the relevant art after being folded, probably produce the crease when recovering to the flat state, reduced folding display device's display effect is solved. The display effect of the folding display device is improved.
Fig. 9 is a flowchart of a control method for a foldable display device according to an embodiment of the present invention. The control method of the folding display device can be applied to each folding display device provided by the above embodiments, and the folding display device can comprise a folding bracket, wherein the folding bracket comprises at least two sub-brackets which are rotatably connected; the stretching assembly comprises a stretching component which is respectively positioned on each sub-bracket; and the flexible display is arranged in the folding bracket and is connected with the stretching component on each sub-bracket. The method may include the following steps:
Whether the flexible display is creased or not may be determined by the length detecting component and the crease determining component.
The length detection assembly can be used for determining whether the length of the flexible display on any two adjacent sub-supports in the at least two rotatably connected sub-supports in the designated direction is smaller than the standard length when any two adjacent sub-supports are positioned on the same plane. The standard length is the length of the flexible display on any two adjacent sub-mounts in a given direction when the flexible displays are in the same plane.
Since the flexible displays on any two adjacent sub-supports are difficult to be located in the same plane due to the possible existence of creases when the flexible displays are folded, the flexible displays on any two adjacent sub-supports being located in the same plane may refer to the length of the flexible display in a specified direction when the flexible display has never been folded. The designated direction is a direction perpendicular to the rotation axis of the rotational connection and parallel to the arbitrary two adjacent sub-mounts located on the same plane.
The folding determining component is used for determining that the flexible display on any two adjacent sub-supports has a folding when the length of the flexible display on the any two adjacent sub-supports in the designated direction is smaller than the standard length.
As shown in fig. 3, the crease determining component 24 includes a distance sensor 241, the distance sensor 241 is disposed at an end of any one of the 2 sub-supports 211 far from the other sub-support, and is used for determining whether the length of the flexible display 23 on any two adjacent sub-supports in a given direction is smaller than a standard length according to the shortest distance s between any two adjacent sub-supports 211 and the flexible display 23 when the two adjacent sub-supports are located on the same plane.
Wherein when there is a crease in the flexible display 23, the shortest distance s is increased due to the pulling of the crease, the distance sensor 241 can compare the instantly measured s with the shortest distance of the flexible display 23 when the flexible display 23 has not been folded yet, and if the instantly measured s is larger, it can be determined that the length of the flexible display 23 on any two adjacent sub-supports in the designated direction is smaller than the standard length.
When the flexible display has a crease, the flexible display is stretched by stretching members on the sub-supports on both sides of the crease, step 902.
As shown in fig. 3, the two stretching members 211 stretch the flexible display 23 to flatten the crease h on the flexible display 23, so as to improve the flatness of the flexible display 23, and further improve the display effect of the flexible display 23.
When the flexible display is not creased, the step 901 may be executed again.
And 903, determining whether any two adjacent sub-supports in the at least two rotatably connected sub-supports are coplanar through the folding sensor.
When any two adjacent sub-mounts are not coplanar, it indicates that the folded display device is being folded.
And 904, controlling the stretching parts on any two adjacent sub-brackets to stop stretching when the any two adjacent sub-brackets are not coplanar.
When any two adjacent sub-supports are not coplanar, if the stretching component continues to stretch the flexible display, damage may be caused to the flexible display, and therefore, the stretching component may be controlled to stop stretching the flexible display at this time so as to protect the flexible display.
In summary, in the control method of the folding display device according to the embodiment of the invention, when the flexible display generates the fold, the stretching member on the sub-frame located at both sides of the fold stretches the flexible display, so that the fold is flattened. The problem of flexible display among the relevant art after being folded, probably produce the crease when recovering to the flat state, reduced folding display device's display effect is solved. The display effect of the folding display device is improved.
The term "at least one of a and B" in the present invention is only one kind of association relationship describing the associated object, and means that three kinds of relationships may exist, for example, at least one of a and B may mean: a exists alone, A and B exist simultaneously, and B exists alone. Similarly, "A, B and at least one of C" means that there can be seven relationships that can be expressed: there are seven cases of A alone, B alone, C alone, both A and B, both A and C, both C and B, and both A, B and C. Similarly, "A, B, C and at least one of D" indicates that there may be fifteen relationships, which may indicate: fifteen cases of a alone, B alone, C alone, D alone, a and B together, a and C together, a and D together, C and B together, D and B together, C and D together, A, B and C together, A, B and D together, A, C and D together, B, C and D together, A, B, C and D together exist.
It is noted that in the drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. Also, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or layer or intervening layers may also be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may be present. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or there can be more than one intermediate layer or element. Like reference numerals refer to like elements throughout.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The invention is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A foldable display device, comprising:
the folding bracket comprises at least two rotatably connected sub-brackets;
a tension assembly including tension members respectively located on each of the sub-mounts;
a flexible display disposed in the folding stand and connected to the tension member on each of the sub-stands;
wherein the stretching component is configured to stretch the flexible display through stretching components on the sub-supports positioned at two sides of the crease when the crease is generated on the flexible display, so that the crease is flattened;
the folding display device further includes: a fold sensor, a length detection component and a crease determination component, wherein the length detection component comprises a distance sensor;
the number of the sub-supports is 2, the distance sensor is arranged at one end, away from the other sub-support, of any one of the 2 sub-supports and used for determining whether the length of the flexible display on any two adjacent sub-supports in the specified direction is smaller than the standard length or not according to the shortest distance between any two adjacent sub-supports and the flexible display when the two adjacent sub-supports are located on the same plane;
the folding sensor is used for determining whether any two adjacent sub-supports in the at least two rotatably connected sub-supports are coplanar; when any two adjacent sub-supports are not in the same plane, controlling the stretching parts on any two adjacent sub-supports to stop stretching, wherein the folding sensor is positioned in a rotating structure between any two adjacent sub-supports, the two sub-supports are folded through the rotating structure to drive the flexible displays to be folded, and the distance between the flexible displays positioned on different sub-supports is 2 mm to 12 mm;
the length detection assembly is used for determining whether the length of the flexible displays on any two adjacent sub-supports in a specified direction is smaller than a standard length when any two adjacent sub-supports are positioned on the same plane, wherein the standard length is the length of the flexible displays on any two adjacent sub-supports in the specified direction when the flexible displays on the any two adjacent sub-supports are positioned on the same plane;
the crease determining component is used for determining that the flexible display positioned on any two adjacent sub-supports has creases when the length is smaller than the standard length, and the specified direction is perpendicular to the rotating shaft connected in a rotating mode and is parallel to the direction of any two adjacent sub-supports positioned on the same plane.
2. The folding display device of claim 1, wherein said distance sensor comprises at least one of an optical distance sensor, an infrared distance sensor, and an ultrasonic distance sensor.
3. The foldable display device of claim 1 or 2, wherein the flexible display comprises an optical film layer, a flexible display panel, and a touch panel disposed between the optical film layer and the flexible display panel.
4. A folded display device according to claim 1 or 2, wherein the flexible display comprises an optical film layer and a flexible display panel.
5. The folding display device of claim 1 or 2, wherein the flexible display comprises a touch panel, a flexible display panel, and an optical film layer disposed between the touch panel and the flexible display panel.
6. The foldable display device of claim 1, wherein the stretching member is disposed adhesively with the flexible display.
7. A control method for a foldable display device according to any one of claims 1 to 6, the foldable display device comprising: the folding bracket comprises at least two rotatably connected sub-brackets; a tension assembly including a tension member on each of the sub-mounts; a flexible display disposed in the folding bracket and connected to the tension member on each of the sub-brackets, a length detection assembly and a crease determination assembly, and the length detection assembly includes a distance sensor,
the method comprises the following steps:
detecting whether a crease is generated on the flexible display;
when the flexible display generates a crease, stretching the flexible display through stretching parts on the sub-supports positioned at two sides of the crease;
the detecting whether the flexible display generates a crease includes:
determining whether the length of the flexible displays on any two adjacent sub-supports in a specified direction is smaller than a standard length when any two adjacent sub-supports are positioned on the same plane, wherein the standard length is the length of the flexible displays on any two adjacent sub-supports in the specified direction when the flexible displays on the any two adjacent sub-supports are positioned on the same plane;
when the length is smaller than the standard length, determining that the flexible displays on any two adjacent sub-supports have creases, wherein the specified direction is perpendicular to the rotating shaft connected in a rotating mode and parallel to the direction of any two adjacent sub-supports on the same plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811003884.0A CN109036142B (en) | 2018-08-30 | 2018-08-30 | Folding display device and control method of folding display device |
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| CN201811003884.0A CN109036142B (en) | 2018-08-30 | 2018-08-30 | Folding display device and control method of folding display device |
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|---|---|---|---|---|
| CN110379313B (en) * | 2019-07-26 | 2021-06-11 | 昆山工研院新型平板显示技术中心有限公司 | Foldable flexible display panel and foldable display device |
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