CN111681562A - Curling display equipment, electric quantity management method and device - Google Patents
Curling display equipment, electric quantity management method and device Download PDFInfo
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- CN111681562A CN111681562A CN202010522593.3A CN202010522593A CN111681562A CN 111681562 A CN111681562 A CN 111681562A CN 202010522593 A CN202010522593 A CN 202010522593A CN 111681562 A CN111681562 A CN 111681562A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The embodiment of the invention provides a curling display device, an electric quantity management method and a device, wherein the curling display device at least comprises the following components: the piezoelectric sensor array comprises a curling display module, a piezoelectric sensor array, a supporting component and a power supply module; the power supply module is connected with the curling display module and the piezoelectric sensor array and used for providing electric energy; and the piezoelectric sensor array is arranged between the curled display module and the supporting component, is arranged along the curling direction of the curled display screen in the curled display module, and is used for determining the curling position of the curled display screen. According to the embodiment of the invention, the electric energy of the curled display screen in the curling state is saved, the power consumption of the curled display screen is reasonably controlled, even if the battery power is smaller, the standby time of the mobile equipment is increased through reasonably controlling the power consumption, and the system performance is improved.
Description
Technical Field
The invention relates to the field of control, in particular to a curling display device, an electric quantity management method and an electric quantity management device.
Background
An OLED (organic light-Emitting Diode) display screen is mature, and with the development of science and technology, the application of a curled OLED display screen is increasing, for example, the display screen is widely used in the fields of vehicle-mounted or VR. The display screen is curled, so that the mobile equipment has smaller volume and is easier to store. However, in order to make the curled display have a smaller volume, the battery module is necessarily limited by the volume and cannot have larger electric energy, so that the curled display consumes more power, the standby time of the mobile device is short, and the system performance is lower.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a curling display device, a power management method and an apparatus, so as to solve the following problems in the prior art: the conventional battery module of the curled display screen is bound by the size of the battery module and cannot have larger electric energy, so that the curled display screen is more in power consumption, the standby time of mobile equipment is short, and the system performance is lower.
In one aspect, an embodiment of the present invention provides a curled display device, including at least: the piezoelectric sensor array comprises a curling display module, a piezoelectric sensor array, a supporting component and a power supply module; the power supply module is connected with the curling display module and the piezoelectric sensor array and used for providing electric energy; the piezoelectric sensor array is arranged between the curling display module and the supporting component, is arranged along the curling direction of the curling display screen in the curling display module, and is used for determining the curling position of the curling display screen.
In some embodiments, each piezoelectric sensor in the array of piezoelectric sensors has an elliptical appearance.
In some embodiments, the piezoelectric sensor array is a plurality of piezoelectric sensor arrays, and the plurality of piezoelectric sensor arrays are arranged in a predetermined manner.
On the other hand, an embodiment of the present invention provides an electric quantity management method for a curling display device, which is used for controlling the curling display device according to any embodiment of the present invention, and includes: detecting whether a pressure value of the pressure data from the piezoelectric sensor reaches a predetermined pressure value; and sending a screen-off control signal to the curled display module under the condition that the preset pressure value is reached so as to control the curled display screen at the position corresponding to the piezoelectric sensor to enter a screen-off state.
In some embodiments, in the case that the piezoelectric sensor array is plural, the sending the information screen control signal to the curling display module includes: detecting whether the number of the piezoelectric sensors with the pressure values reaching the preset pressure value reaches a preset number in a plurality of simultaneously received pressure data; and sending screen turning control signals to the curled display module when the preset number is reached.
In some embodiments, further comprising: detecting whether the piezoelectric sensor array is in a fully-extruded state; counting the extrusion time of the last extruded piezoelectric sensor under the condition of being in a complete extrusion state; and sending a shutdown signal to the curled display module to close the curled display module under the condition that the extrusion time reaches the preset time.
In some embodiments, further comprising: and acquiring electric energy generated by the piezoelectric sensor in a squeezing state, and storing the electric energy in the battery module.
On the other hand, an embodiment of the present invention provides an electricity management apparatus for a curling display device, configured to control the curling display device according to any embodiment of the present invention, where the apparatus includes: the first detection module is used for detecting whether the pressure value of the pressure data from the piezoelectric sensor reaches a preset pressure value or not; and the first sending module is used for sending a screen-off control signal to the curled display module under the condition that the preset pressure value is reached so as to control the curled display screen at the position corresponding to the piezoelectric sensor to enter a screen-off state.
In some embodiments, the sending module is specifically configured to: detecting whether the number of the piezoelectric sensors of which the pressure values reach the preset pressure value reaches a preset number or not in a plurality of pieces of pressure data received at the same time under the condition that the piezoelectric sensor array is a plurality of piezoelectric sensors; and sending screen turning control signals to the curled display module when the preset number is reached.
In some embodiments, further comprising: the second detection module is used for detecting whether the piezoelectric sensor array is in a complete extrusion state or not; the statistical module is used for counting the extrusion time of the last extruded piezoelectric sensor under the condition of being in a complete extrusion state; and the second sending module is used for sending a shutdown signal to the curled display module to close the curled display module under the condition that the extrusion time reaches the preset time.
According to the embodiment of the invention, the electric energy of the curled display screen in the curling state is saved, the power consumption of the curled display screen is reasonably controlled, even if the battery power is smaller, the standby time of the mobile equipment is increased through reasonably controlling the power consumption, and the system performance is improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a roll display device according to a first embodiment of the present invention;
fig. 2 is a first schematic view illustrating an arrangement of a piezoelectric sensor array according to a first embodiment of the present invention;
fig. 3 is a second schematic layout diagram of a piezoelectric sensor array according to a first embodiment of the present invention;
fig. 4 is a third schematic view illustrating an arrangement of a piezoelectric sensor array according to the first embodiment of the present invention;
fig. 5 is a fourth schematic view illustrating an arrangement of a piezoelectric sensor array according to the first embodiment of the present invention;
fig. 6 is a schematic diagram illustrating an arrangement of a piezoelectric sensor array according to a first embodiment of the present invention;
fig. 7 is a sixth schematic view illustrating an arrangement of a piezoelectric sensor array according to a first embodiment of the present invention;
FIG. 8 is a schematic view of a piezoelectric sensor array according to a first embodiment of the present invention;
fig. 9 is a basic schematic diagram of a piezoelectric sensor for detecting a curl according to a first embodiment of the present invention;
fig. 10 is a flowchart of a power management method for a curling display device according to a second embodiment of the invention;
fig. 11 is a schematic structural diagram of an electricity management apparatus for a roll display device according to a third embodiment of the present invention.
Reference numerals:
1-a curled display module, 2-a piezoelectric sensor array, 3-a support component, 4-a power supply module and 21-a piezoelectric sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
A first embodiment of the present invention provides a rolled display device, the rolled display screen having a structure schematically shown in fig. 1, and including at least:
the device comprises a curling display module 1, a piezoelectric sensor array 2, a support component 3 and a power module 4; the power module 4 is connected with the curling display module 1 and the piezoelectric sensor array 2 and used for providing electric energy; and the piezoelectric sensor array 2 is arranged between the curled display module 1 and the supporting component 3, is arranged along the curling direction of the curled display screen in the curled display module 1, and is used for determining the curling position of the curled display screen.
According to the embodiment of the invention, the piezoelectric sensor array is arranged between the curling display module and the supporting component, each piezoelectric sensor in the piezoelectric sensor array corresponds to different positions of the curling display screen, when the curling display screen is gradually changed from the unfolding state to the curling state, the piezoelectric sensors in the piezoelectric sensor array are extruded due to the extrusion force caused by curling, the positions of the currently extruded piezoelectric sensors can be determined through pressure data, and then the positions to which the curling display screen is curled are determined through the positions, namely the curling display screens corresponding to all the piezoelectric sensors in the extruding state are already in the curling state, and the curling display screen in the curling state can be closed by knowing which curling display screens are in the curling state, so that electric energy is saved.
The piezoelectric sensor array in the embodiment of the present invention may be one or more. For example, the arrangement shown in fig. 2 is that there is only one piezoelectric sensor array 2 (including a plurality of piezoelectric sensors 21) and the one piezoelectric sensor array is uniformly arranged along the curling direction, wherein the piezoelectric sensor array 2 is arranged in the middle of the support structure, and of course, the piezoelectric sensor array 2 may be arranged along the central diagonal of the support structure as shown in fig. 3.
If there are a plurality of piezoelectric sensor arrays 2, the plurality of piezoelectric sensor arrays 2 can be laid out in a more rational manner. For example, the layout shown in fig. 4 is a layout in which two piezoelectric sensor arrays 2 are laid out in the curling direction; alternatively, for example, the layout shown in fig. 5 is a layout in which two piezoelectric sensor arrays 2 are staggered at the center; still alternatively, for example, the layout shown in fig. 6 is a layout in which a plurality of piezoelectric sensor arrays 2 are vertically and symmetrically distributed; still alternatively, for example, the layout shown in fig. 7 is a layout in which a plurality of piezoelectric sensor arrays 2 are arranged in a staggered symmetrical arrangement.
The layout can be adjusted by those skilled in the art according to actual requirements, and is not limited herein. However, since the piezoelectric sensor according to the embodiment of the present invention is not only compressed but also curled, the shape of the piezoelectric sensor can be designed to have an oval appearance, for example, a pattern form shown in fig. 8, when designing the piezoelectric sensor, and stress accumulation of curling can be reduced, thereby improving reliability and a margin for bending. Of course, the shape of the piezoelectric sensor may be rectangular, rhombic, or the like, and the protection range is not limited herein.
According to the embodiment of the invention, a piezoelectric sensor array is designed in a lower-layer component of a curled display screen, the cross section structure of a single piezoelectric sensor comprises a positive electrode, a negative electrode and a composite piezoelectric material, and the piezoelectric sensor is provided with an input interface and an output interface. The composite piezoelectric material is required to be an organic polymer material which can be bent, curled and flexibly deformed correspondingly, and common materials include polyvinylidene fluoride (PVDF), lead zirconate titanate (PZT) polymer, barium carbonate (BaTiO3) polymer, lead magnesium niobate (PMN-PT) polymer and doped modified composite piezoelectric material.
As shown in fig. 9, the piezoelectric sensor in the unrolled portion is in a natural state at the start of rolling, and a pressure value in an initial state is set as a predetermined pressure value. When the screen is rolled up, the first piezoelectric sensor is gradually in a pressed state, the middle organic piezoelectric material is pressed to a high potential, and the rolled position is controlled to be on the screen after the output high potential signal is received. When the display screen is unfolded again, the pressed state of the piezoelectric sensor is released, the display state is achieved, and the pressure of the piezoelectric sensor is recovered to the preset pressure value.
According to the embodiment of the invention, the electric energy of the curled display screen in the curled state is saved, the power consumption of the curled display screen is reasonably controlled, even if the electric quantity of the battery is smaller, the standby time of the mobile equipment with the curled display equipment is prolonged through reasonably controlling the power consumption, and the system performance is improved.
A second embodiment of the present invention provides a power management method for a curling display device, which can be used to control the curling display device in the first embodiment, and the flow of the method is shown in fig. 10, and includes steps S1001 to S1002:
s1001 of detecting whether a pressure value of pressure data from the piezoelectric sensor reaches a predetermined pressure value;
s1002, when the preset pressure value is reached, screen-off control signals are sent to the curled display module to control the curled display screen at the corresponding position of the piezoelectric sensor to enter a screen-off state.
Because the curled display screen provided by the embodiment of the invention is provided with the piezoelectric sensor array, whether the piezoelectric sensor is in the extrusion state at present can be determined by detecting the pressure value of each piezoelectric sensor, and the curled display screen at the corresponding position of the piezoelectric sensor is controlled to enter the screen resting state under the condition that the piezoelectric sensor is in the extrusion state, so that the electric energy of the curled display screen in the curling state is saved, the electricity consumption of the curled display screen is reasonably controlled, even if the battery power is small, the standby time of mobile equipment is prolonged through reasonably controlling the electricity consumption, and the system performance is improved.
In a specific implementation, due to different layouts of the piezoelectric sensor arrays, the quantity of pressure data of the piezoelectric sensors received at the same time is different. Under the condition that the piezoelectric sensor array is multiple, sending the information screen control signal to the curling display module specifically may include: detecting whether the number of the piezoelectric sensors of which the pressure values reach the preset pressure values reaches the preset number in the simultaneously received plurality of pressure data; and sending screen turning control signals to the curled display module when the preset number is reached. For example, the layout shown in fig. 6, in which 5 piezoelectric sensor arrays are arranged and are symmetrically arranged, in this case, when the rolled display screen is rolled, 5 pressure data should be received at the same time, and even if a skew phenomenon occurs during rolling, at least 4 piezoelectric sensors should be simultaneously pressed to determine that the screen control signal is sent, so as to ensure the accuracy of control.
When the whole curled display screen is completely rolled up, the pressure values of all the piezoelectric sensors are changed from one initial value to another value, so that whether the whole curled display screen is completely rolled up can be determined only by detecting whether the piezoelectric sensor array is in a completely pressed state. In the case of a fully pressed state, which indicates that the entire rolled display screen is rolled up, and possibly the user does not want to use the rolled display screen at this time, the pressing time of the last pressed piezoelectric sensor may be counted, and the rolling time of the entire rolled display screen may be determined by the pressing time. And under the condition that the extrusion time reaches the preset time, the user does not need to use the curled display screen, and a shutdown signal is sent to the curled display module to close the curled display module. Of course, a plurality of predetermined times may be set, and different operations may be performed when different predetermined times are reached, and those skilled in the art may set the predetermined times according to actual requirements, which is not described herein again.
Since the battery level is small, if the battery level can be increased, the display time can be appropriately extended. Based on the above considerations, the embodiment of the invention obtains the electric energy generated by the piezoelectric sensor in the extrusion state, and stores the electric energy in the battery module.
According to the embodiment of the invention, the signal of each piezoelectric sensor point position is used for reflecting the curling state of the curled display screen, the displayed switch and the picture adaptation size are controlled, the curling automatic screen rest and the picture self-adaptation function can be realized, the power consumption of the comprehensive application scene of the curled display screen is reduced, and the cruising ability is increased; meanwhile, when the electric quantity of the battery is extremely low, emergency charging can be achieved by repeatedly curling the piezoelectric sensor array.
A third embodiment of the present invention provides an electricity management apparatus for a curling display device, for controlling the curling display device in the first embodiment, the apparatus is schematically shown in fig. 11, and comprises:
a first detection module 10 for detecting whether a pressure value of the pressure data from the piezoelectric sensor reaches a predetermined pressure value; and the first sending module 20 is coupled with the first detecting module 10 and configured to send a screen-off control signal to the curled display module when a predetermined pressure value is reached, so as to control the curled display screen at the corresponding position of the piezoelectric sensor to enter a screen-off state.
Because the curled display screen provided by the embodiment of the invention is provided with the piezoelectric sensor array, whether the piezoelectric sensor is in the extrusion state at present can be determined by detecting the pressure value of each piezoelectric sensor, and the curled display screen at the corresponding position of the piezoelectric sensor is controlled to enter the screen resting state under the condition that the piezoelectric sensor is in the extrusion state, so that the electric energy of the curled display screen in the curling state is saved, the electricity consumption of the curled display screen is reasonably controlled, even if the battery power is small, the standby time of mobile equipment is prolonged through reasonably controlling the electricity consumption, and the system performance is improved.
In a specific implementation, due to different layouts of the piezoelectric sensor arrays, the quantity of pressure data of the piezoelectric sensors received at the same time is different. The sending module is specifically configured to: detecting whether the number of the piezoelectric sensors of which the pressure values reach the preset pressure values reaches the preset number in the simultaneously received multiple pressure data under the condition that the piezoelectric sensor array is multiple; and sending screen turning control signals to the curled display module when the preset number is reached.
The above-mentioned electric quantity management device may further include: the second detection module is used for detecting whether the piezoelectric sensor array is in a complete extrusion state or not; the statistical module is used for counting the extrusion time of the last extruded piezoelectric sensor under the condition of being in a complete extrusion state; and the second sending module is used for sending a shutdown signal to the curling display module to close the curling display module under the condition that the extrusion time reaches the preset time.
When the whole curled display screen is completely rolled up, the pressure values of all the piezoelectric sensors are changed from one initial value to another value, so that whether the whole curled display screen is completely rolled up can be determined only by detecting whether the piezoelectric sensor array is in a completely pressed state. In the case of a fully pressed state, which indicates that the entire rolled display screen is rolled up, and possibly the user does not want to use the rolled display screen at this time, the pressing time of the last pressed piezoelectric sensor may be counted, and the rolling time of the entire rolled display screen may be determined by the pressing time. And under the condition that the extrusion time reaches the preset time, the user does not need to use the curled display screen, and a shutdown signal is sent to the curled display module to close the curled display module. Of course, a plurality of predetermined times may be set, and different operations may be performed when different predetermined times are reached, and those skilled in the art may set the predetermined times according to actual requirements, which is not described herein again.
Since the battery level is small, if the battery level can be increased, the display time can be appropriately extended. Based on the above considerations, the embodiment of the invention obtains the electric energy generated by the piezoelectric sensor in the extrusion state, and stores the electric energy in the battery module.
According to the embodiment of the invention, the signal of each piezoelectric sensor point position is used for reflecting the curling state of the curled display screen, the displayed switch and the picture adaptation size are controlled, the curling automatic screen rest and the picture self-adaptation function can be realized, the power consumption of the comprehensive application scene of the curled display screen is reduced, and the cruising ability is increased; meanwhile, when the electric quantity of the battery is extremely low, emergency charging can be achieved by repeatedly curling the piezoelectric sensor array.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
While the embodiments of the present invention have been described in detail, the present invention is not limited to these specific embodiments, and those skilled in the art can make various modifications and modifications of the embodiments based on the concept of the present invention, which fall within the scope of the present invention as claimed.
Claims (10)
1. A scrolling display device, characterized in that it comprises at least:
the piezoelectric sensor array comprises a curling display module, a piezoelectric sensor array, a supporting component and a power supply module; wherein the content of the first and second substances,
the power supply module is connected with the curled display module and the piezoelectric sensor array and used for providing electric energy;
the piezoelectric sensor array is arranged between the curling display module and the supporting component, is arranged along the curling direction of the curling display screen in the curling display module, and is used for determining the curling position of the curling display screen.
2. The rolled display screen of claim 1 wherein each piezoelectric sensor in the array of piezoelectric sensors has an elliptical appearance.
3. The rolled display screen of claim 1 wherein the piezoelectric sensor array is a plurality of piezoelectric sensor arrays arranged in a predetermined pattern.
4. A power management method of a roll display device for controlling the roll display device according to any one of claims 1 to 3, comprising:
detecting whether a pressure value of the pressure data from the piezoelectric sensor reaches a predetermined pressure value;
and sending a screen-off control signal to the curled display module under the condition that the preset pressure value is reached so as to control the curled display screen at the position corresponding to the piezoelectric sensor to enter a screen-off state.
5. The power management method of claim 4, wherein sending a message screen control signal to the curling display module when the array of piezoelectric sensors is plural comprises:
detecting whether the number of the piezoelectric sensors with the pressure values reaching the preset pressure value reaches a preset number in a plurality of simultaneously received pressure data;
and sending screen turning control signals to the curled display module when the preset number is reached.
6. The power management method of claim 4 or 5, further comprising:
detecting whether the piezoelectric sensor array is in a fully-extruded state;
counting the extrusion time of the last extruded piezoelectric sensor under the condition of being in a complete extrusion state;
and sending a shutdown signal to the curled display module to close the curled display module under the condition that the extrusion time reaches the preset time.
7. The power management method of claim 4, further comprising:
and acquiring electric energy generated by the piezoelectric sensor in a squeezing state, and storing the electric energy in the battery module.
8. A power management apparatus of a roll display device for controlling the roll display device according to any one of claims 1 to 3, comprising:
the first detection module is used for detecting whether the pressure value of the pressure data from the piezoelectric sensor reaches a preset pressure value or not;
and the first sending module is used for sending a screen-off control signal to the curled display module under the condition that the preset pressure value is reached so as to control the curled display screen at the position corresponding to the piezoelectric sensor to enter a screen-off state.
9. The power management device of claim 8, wherein the sending module is specifically configured to:
detecting whether the number of the piezoelectric sensors of which the pressure values reach the preset pressure value reaches a preset number or not in a plurality of pieces of pressure data received at the same time under the condition that the piezoelectric sensor array is a plurality of piezoelectric sensors;
and sending screen turning control signals to the curled display module when the preset number is reached.
10. The power management device of claim 8 or 9, further comprising:
the second detection module is used for detecting whether the piezoelectric sensor array is in a complete extrusion state or not;
the statistical module is used for counting the extrusion time of the last extruded piezoelectric sensor under the condition of being in a complete extrusion state;
and the second sending module is used for sending a shutdown signal to the curled display module to close the curled display module under the condition that the extrusion time reaches the preset time.
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