Display device and electronic equipment

Abstract

The application discloses a display device and an electronic device. The display device comprises a winding member, a flexible display panel, a detection assembly and a control assembly. The flexible display panel can be wound on the winding member. The detection assembly comprises a sliding resistor. The resistance part of the sliding resistor is fixed to the winding member. The sliding part of the sliding resistor moves relative to the resistance part with the winding or unwinding of the flexible display panel, so as to change the resistance value of the sliding resistor. The control assembly is electrically connected with the detection assembly, and is used for controlling the display information of the display area of the flexible display panel according to the resistance value. The flexible display panel comprises a winding state and an unwinding state. In the winding state, the flexible display panel is wound on the winding member. In the unwinding state, the unwinding area is the part of the flexible display panel unwound from the winding member. According to the embodiment of the application, the display resolution of the flexible display panel can be controlled.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, and in particular relates to a display device and an electronic device. Background Technology

[0002] Flexible display panels are characterized by their ability to be bent at will, their thin and light materials, and their energy-saving properties. When unfolded, they have a large display area, while when rolled up, they have a small volume. With the development of flexible display panel technology, flexible display panel equipment has become the mainstream equipment in the current display technology field.

[0003] In display devices that include flexible display panels, the flexible display panels typically display information only when fully unfolded, and cannot display information in the unfolded area when partially unfolded, resulting in poor display quality. Therefore, how to effectively improve the display quality of display devices has become an urgent technical problem to be solved. Summary of the Invention

[0004] This application provides a display device and an electronic device capable of controlling the display resolution of a flexible display panel.

[0005] In a first aspect, embodiments of this application provide a display device, comprising: a take-up member; a flexible display panel capable of being wound onto the take-up member; a detection component including a sliding resistor, the resistive portion of which is fixed to the take-up member, the sliding portion of which is in contact with the resistive portion, and moving relative to the resistive portion as the flexible display panel is wound or unfolded, thereby changing the resistance value of the sliding resistor; and a control component electrically connected to the detection component, used to control the unfolded area of ​​the flexible display panel to display display information according to the resistance value; the flexible display panel includes a wound state and an unfolded state, wherein in the wound state, the flexible display panel is wound onto the take-up member, and in the unfolded state, the flexible display panel is at least partially unfolded from the take-up member, with the unfolded portion being the unfolded area.

[0006] In some embodiments, the display device includes a housing, a winding member located inside the housing, a flexible display panel housed in the housing in a wound state, and a flexible display panel extending at least partially out of the housing along a first direction in an unfolded state, the extended portion being the unfolded area.

[0007] In some embodiments, the winding member includes an inner shaft and an outer shaft. The outer shaft is sleeved on the inner shaft and rotatably connected to the inner shaft. The inner shaft is fixedly connected to the housing. One end of the flexible display panel is connected to the outer shaft. The outer shaft rotates relative to the inner shaft as the flexible display panel is wound or unfolded.

[0008] In some embodiments, the resistor is disposed at the end of the outer shaft and faces the housing, and the sliding part is disposed between the resistor and the housing.

[0009] In some embodiments, the resistive portion includes a spiral channel, and the sliding portion includes a ball bearing that extends at least partially into the channel and moves relative to the channel as the flexible display panel is rolled up or unfolded.

[0010] In some embodiments, the detection component further includes a stop fixed to the housing, a ball partially embedded in the groove and partially mounted on the stop, the stop extending along a first direction, and the ball moving relative to the stop along the first direction as the flexible display panel is rolled up or unfolded.

[0011] In some embodiments, the number of turns of the flexible display panel wound around the winding member in the winding state is equal to the number of turns of the channel.

[0012] In some embodiments, the detection assembly further includes an insulating element that covers the stop and the side of the housing opposite the resistive portion.

[0013] In some embodiments, the resistor is disposed at one end of the outer shaft; or two resistors are disposed at both ends of the outer shaft.

[0014] Secondly, embodiments of this application provide an electronic device, including a display device as described in any of the first aspects.

[0015] The display device of this application embodiment includes a take-up member, a flexible display panel, a detection component, and a control component. The flexible display panel can be wound onto the take-up member, including a wound state and an unfolded state. In the wound state, the flexible display panel is wound onto the take-up member. In the unfolded state, the flexible display panel is at least partially unfolded from the take-up member, with the unfolded portion being the unfolded area. The detection component includes a sliding resistor. The resistive portion of the sliding resistor is fixed to the take-up member. The sliding portion of the sliding resistor moves relative to the resistive portion as the flexible display panel is wound or unfolded, thereby changing the resistance value of the sliding resistor. This allows the control component, which is electrically connected to the detection component, to control the unfolded area of ​​the flexible display panel to display display information based on the resistance value. Thus, according to this application embodiment, the control component can control the resolution of the flexible display panel by controlling the display information displayed in the unfolded area of ​​the flexible display panel based on the resistance value of the sliding resistor of the detection component. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a display device according to some embodiments of this application;

[0018] Figure 2This is a schematic diagram of the internal structure of a display device according to some embodiments of this application;

[0019] Figure 3 An exploded view of an example detection component of some embodiments of this application;

[0020] Figure 4 for Figure 3 A schematic diagram of the resistive section of the detection component;

[0021] Figure 5 for Figure 3 A schematic diagram of the structure of the stop part of the detection component;

[0022] Figure 6 These are schematic diagrams illustrating the structure of flexible display panels according to some embodiments of this application;

[0023] Figure 7 This is a schematic diagram of the structure of an electronic device according to some embodiments of this application.

[0024] Figure label:

[0025] 2000, Electronic equipment;

[0026] 1000. Display device; 1. Rewinding component; 11. Inner shaft; 12. Outer shaft; 2. Flexible display panel; 201. Flexible cover plate; 202. Optical film layer; 203. Polarizing layer; 204. Flexible display layer; 205. Flexible substrate; 206. Support layer; 3. Detection component; 31. Sliding resistor; 311. Resistor part; 312. Sliding part; 32. Stop; 4. Control component; 5. Housing;

[0027] A, the area to be expanded; X, the first direction. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0030] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0034] In related technologies, display devices are equipped with light-sensing areas including light-receiving sensors. When the flexible display panel is unfolded, the light-sensing areas on both sides of the flexible display panel can receive light signals. The controller receives light source signals from the light-receiving sensors to control the flexible display panel to display information in the unfolded area. However, the applicant has noted that due to the low sensitivity of the light-receiving sensors, the controller cannot receive the correct signals in low-light environments, resulting in a discrepancy between the display area of ​​the flexible display panel and the area actually pulled out by the user, thus reducing the display effect of the flexible screen.

[0035] In view of this, embodiments of this application provide a display device, including a take-up member, a flexible display panel, a detection component, and a control component. The flexible display panel is capable of being wound up to the take-up member, including a wound state and an unfolded state. In the wound state, the flexible display panel is wound up to the take-up member; in the unfolded state, the flexible display panel is at least partially unfolded from the take-up member, with the unfolded portion being the unfolded area. The detection component includes a sliding resistor, the resistive portion of which is fixed to the take-up member. The sliding portion of the sliding resistor moves relative to the resistive portion as the flexible display panel is wound up or unfolded, thereby changing the resistance value of the sliding resistor. This allows the control component, electrically connected to the detection component, to control the unfolded area of ​​the flexible display panel to display display information based on the resistance value. Thus, according to embodiments of this application, the control component can control the resolution of the flexible display panel by controlling the display information displayed in the unfolded area based on the resistance value of the sliding resistor of the detection component.

[0036] The technical solutions described in the embodiments of this application are applicable to display devices and electronic devices including display devices.

[0037] Figure 1 This is a schematic diagram of the structure of a display device 1000 according to some embodiments of this application. Figure 2 This is a schematic diagram of the internal structure of a display device 1000 according to some embodiments of this application. For example... Figure 1 as well as Figure 2 As shown, the display device 1000 includes a winding component 1, a flexible display panel 2, a detection component 3, and a control component 4.

[0038] The flexible display panel 2 is capable of being wound up to the winding member 1. The detection component 3 includes a sliding resistor 31, with its resistive portion 311 fixed to the winding member 1. A sliding portion 312 of the sliding resistor 31 contacts the resistive portion 311 and moves relative to the resistive portion 311 as the flexible display panel 2 is wound up or unwound, thereby changing the resistance value of the sliding resistor 31. A control component 4 is electrically connected to the detection component 3 and is used to control the display of information in the unfolded area A of the flexible display panel 2 based on the resistance value. The flexible display panel 2 includes a wound state and an unfolded state. In the wound state, the flexible display panel 2 is wound up to the winding member 1. In the unfolded state, the flexible display panel 2 is at least partially unfolded from the winding member 1, with the unfolded portion being the unfolded area A.

[0039] The winding member 1 is configured to support the flexible display panel 2 while unfolding or winding it. That is, the flexible display panel 2 can be located on the surface of the winding member 1, entering a winding state or an unfolded state as the winding member 1 is wound or unfolded. In some optional embodiments, the winding member 1 may include a plurality of connecting portions arranged sequentially along the unfolding direction, hinged together, with the flexible display panel 2 covering the surface of the connecting portions. During the unfolding of the flexible display panel 2, the state of the flexible display panel 2 changes by altering the included angle between the plurality of connecting portions. In other optional embodiments, the winding member 1 may include a plurality of rods that can extend from within the winding member 1. During the unfolding of the flexible display panel 2, the lengths of the rods change, and the ends of the rods extending out of the winding member 1 are spaced apart along the unfolding direction to support the flexible display panel 2 from multiple positions. The above description of the structure of the winding member 1 is exemplary; any structure capable of unfolding or winding the flexible display panel 2 is feasible, and this application embodiment does not limit this.

[0040] The detection component 3 is configured to detect the winding or unfolding status of the take-up member 1 and the flexible display panel 2. In this embodiment, the detection component 3 includes a sliding resistor 31, which typically includes a resistive portion 311 and a sliding portion 312. The sliding portion 312 slides relative to the resistive portion 311, that is, the resistance value of the sliding resistor 31 is changed by changing the relative position between the sliding portion 312 and the resistive portion 311, thereby indicating the change in the relative position between the components where the resistive portion 311 and the sliding portion 312 are located. In this embodiment, the resistive portion 311 is fixed to the take-up member 1, and the sliding portion 312 can be located at a position that can contact the resistive portion 311. Since the take-up member 1 will generate a certain amount of movement during the winding and unfolding of the flexible display panel 2, the resistive portion 311 also moves with the take-up member 1, thereby changing the relative position between it and the sliding portion 312, thereby changing the resistance value of the sliding resistor 31, and thus indicating the winding or unfolding status of the flexible display panel 2 by the resistance value of the sliding resistor 31. Optionally, the resistance of the sliding resistor 31 can be at its minimum when the flexible display panel 2 is in a rolled-up state, and at its maximum when the flexible display panel 2 is in an unfolded state.

[0041] Control component 4 is configured to control the flexible display panel 2 to display information in the unfolded area A. Control component 4 is electrically connected to detection component 3 to receive the resistance value of sliding resistor 31. It determines the winding or unfolding status of the flexible display panel 2 based on the resistance value and controls the flexible display panel 2 to display information in the unfolded area A from the winding component 1. In other words, control component 4 can obtain the area of ​​the unfolded area A of the flexible display panel 2 through the resistance value of sliding resistor 31 and control the resolution of the displayed information based on the area to display the information in the unfolded area A.

[0042] Thus, the display device 1000 of this application embodiment can control the resolution of the flexible display panel 2, so that the flexible display panel 2 can be displayed normally in the unfolded area A, but not in the unfolded area A. This improves the display effect of the display device 1000, increases the lifespan of the flexible display panel 2, and reduces the power consumption of the display device 1000.

[0043] In some alternative embodiments, the display device 1000 includes a housing 5, a winding member 1 located inside the housing 5, a flexible display panel 2 housed in the housing 5 in the wound state, and a flexible display panel 2 extending at least partially out of the housing 5 along a first direction X in the unfolded state, the extended portion being the unfolded area A.

[0044] The housing 5 is configured to protect the winding member 1 and the flexible display panel 2. The winding member 1 is located inside the housing 5 to wind the flexible display panel 2 inside the housing 5 in the wound state, and in the unfolded state, the winding member 1 unfolds the flexible display panel 2 in the first direction X, so that a portion of the flexible display panel 2 extends out of the housing 5. Therefore, the housing 5 may include an opening, and the portion of the flexible display panel 2 extending out of the housing 5 can be regarded as the unfolded area A. The control component 4 can control the flexible display panel 2 to display information in the unfolded area A, that is, the portion extending out of the housing 5, so that the user can view it.

[0045] In some embodiments of this application, the winding member 1 includes an inner shaft 11 and an outer shaft 12. The outer shaft 12 is sleeved on the inner shaft 11 and rotatably connected to the inner shaft 11. The inner shaft 11 is fixedly connected to the housing 5. One end of the flexible display panel 2 is connected to the outer shaft 12. The outer shaft 12 rotates relative to the inner shaft 11 as the flexible display panel 2 is wound or unfolded.

[0046] The winding component 1 includes an inner shaft 11 and an outer shaft 12. One end of the flexible display panel 2 is connected to the outer shaft 12, and the flexible display panel 2 can be regarded as being wound around the outer shaft 12. With the inner shaft 11 fixedly connected to the housing 5, during the unfolding of the flexible display panel 2, the outer shaft 12, which is sleeved on the inner shaft 11 and rotatably connected to the inner shaft 11, can be regarded as rotating relative to the inner shaft 11, resulting in a change in their relative circumferential position.

[0047] In some embodiments of this application, the resistor 311 is disposed at the end of the outer shaft 12 and faces the housing 5, and the sliding part 312 is disposed between the resistor 311 and the housing 5.

[0048] Since the outer shaft 12 rotates relative to the inner shaft 11, and the inner shaft 11 is connected to the housing 5, the outer shaft 12 rotates relative to the housing 5. Therefore, the resistor 311, located at the end of the outer shaft 12 and facing the housing 5, can also move relative to the housing 5 during the unfolding or rewinding of the flexible display panel 2. Simultaneously, the sliding part 312, located between the resistor 311 and the housing 5, can have a relatively fixed positional relationship with the housing 5, or only undergo a small change in relative position with the housing 5 during the unfolding and rewinding of the flexible display panel 2. This allows for a change in relative position with the resistor 311 during relative movement between the resistor 311 and the housing 5, thereby changing the resistance value of the sliding resistor 31. Optionally, in some examples, the sliding part 312 can be fixed to the housing 5; in other examples, the sliding part 312 can simply be connected to the housing 5.

[0049] In some optional embodiments, the resistor 311 is disposed at one end of the outer shaft 12; or two resistors 311 are disposed at both ends of the outer shaft 12. When two resistors 311 are included, two sliding parts 312 are also included accordingly. That is, the detection component 3 includes two sliding resistors 31, and the control component 4 can be connected in parallel with the two sliding resistors 31 to simultaneously receive the resistance values ​​of the two sliding resistors 31 and determine the unfolding or retracting status of the flexible display panel 2. Optionally, the control component 4 can also determine whether the detection component 3 is functioning normally based on the difference in resistance values ​​of the two sliding resistors 31. For example, if the resistance difference is less than or equal to a preset threshold, the detection component 3 is considered to be functioning normally; if the resistance difference is greater than the threshold, an alarm is issued to the user. This application embodiment does not limit this.

[0050] Figure 3 This is an exploded view of an example of the detection component 3 in some embodiments of this application. Figure 4 for Figure 3 A schematic diagram of the structure of the resistor section 311 of the detection component 3. (See attached diagram.) Figure 3 as well as Figure 4 As shown, in some embodiments of this application, the resistor 311 includes a spiral channel, and the sliding part 312 includes a ball bearing. The ball bearing extends at least partially into the channel and moves relative to the channel as the flexible display panel 2 is rolled up or unfolded.

[0051] In this embodiment, the resistor 311 includes a spiral channel. When the sliding part 312 includes a ball, the ball can slide in the channel to change the resistance value of the sliding resistor 31. Optionally, the control component 4 can be electrically connected to the channel at one end and to the ball at the other end to obtain the resistance value of the sliding resistor 31.

[0052] In some embodiments of this application, the number of turns of the flexible display panel 2 wound around the winding member 1 in the winding state is equal to the number of turns of the channel.

[0053] Since the flexible display panel 2 is wound onto the outer shaft 12, during the unfolding process of the flexible display panel 2, the outer shaft 12 will rotate according to the number of winding turns of the flexible display panel 2 until the flexible display panel 2 changes from the wound state to the unfolded state. When the resistor 311 is provided at the end of the outer shaft 12 and is formed as a channel, the resistor 311 will also rotate according to the number of winding turns of the flexible display panel 2, thereby changing its relative position with the sliding part 312. This ensures that the number of turns of the channel is equal to the number of winding turns of the flexible display panel 2, allowing the resistance value of the sliding resistor 31 to adapt to the unfolding process of the flexible display panel 2, facilitating the control component 4 to control the resolution of the flexible display panel 2 based on the resistance value.

[0054] Figure 5 for Figure 3A schematic diagram of the structure of the stop portion of the detection component 3. (See diagram below.) Figure 5 As shown, in some embodiments of this application, the detection component 3 further includes a stop 32, which is fixed to the housing 5. The ball is partially embedded in the groove and partially mounted on the stop 32. The stop 32 extends along the first direction X, and the ball moves relative to the stop 32 along the first direction X as the flexible display panel 2 is rolled up or unfolded.

[0055] When the ball portion of the sliding part 312 is partially embedded in the channel of the resistor part 311 and partially mounted on the stop member 32, the stop member 32, together with the channel, can restrict the sliding direction of the ball. When the stop member 32 extends along the first direction X, the ball can slide relative to the stop member 32 along the first direction X while rolling or unfolding with the flexible display panel 2 and sliding relative to the stop member 32. With the stop member 32 provided, the ball's position at the bottom of the channel in the vertical direction due to gravity can be reduced, preventing unnecessary sliding in the channel due to changes in the gravity position of the display device 1000, which would cause frequent changes in the resistance value of the sliding resistor 31 and frequent changes in the resolution of the flexible display panel 2 by the control component 4. Furthermore, since the user unfolds the flexible display panel 2 along the first direction X when using the display device 1000, and considering the user's viewing habits, the user will use the display device 1000 with the horizontal direction as the first direction X. When the stop member 32 extends along the first direction X, the movement direction of the ball relative to the stop member 32 is consistent with the unfolding direction of the flexible display panel 2. Unless the user tilts or flips the display device 1000 significantly, the stop member 32 can maintain the relative position of the ball in the groove, thereby improving the display effect of the display device 1000.

[0056] In some embodiments of this application, the detection component 3 further includes an insulating member (not shown in the figure), which covers the stop member 32 and the side of the housing 5 opposite to the resistor portion 311.

[0057] By covering the stop member 32 and the side of the housing 5 opposite to the resistor 311 with an insulating component, unnecessary current crosstalk between the sliding part 312 and other components can be reduced, thereby improving the accuracy of the resistance value of the sliding resistor 31. Optionally, the insulating component can be made of an elastic material such as rubber or silicone to avoid unnecessary wear on the sliding part 312 and to avoid affecting the resistance value of the sliding resistor 31.

[0058] Figure 6 This is a schematic diagram of the structure of the flexible display panel 2 according to some embodiments of this application. For example... Figure 6As shown, the flexible display panel 2 includes at least a flexible cover plate 201, an optical film layer 202, a polarizing layer 203, a flexible display layer 204, a flexible substrate 205, and a support layer 206 arranged sequentially. The support layer 206 is disposed on the side where the flexible display panel 2 is connected to the winding member 1. The winding member 1 can be bonded to the support layer 206 by means of adhesive or other methods, thereby fixing the flexible display panel 2 relatively. Alternatively, the winding member 1 can also be magnetically connected to the flexible display panel 2. In this case, the support layer 206 is a magnetic material. However, to avoid adverse effects of the magnetic material on the flexible display layer 204 of the flexible display panel 2, a flexible electromagnetic shielding layer can be provided between the flexible display layer 204 and the support layer 206 to shield the magnetic attraction force of the support layer 206.

[0059] Figure 7 This is a schematic diagram of the structure of an electronic device 2000 according to some embodiments of this application. For example... Figure 7 As shown in the figure, this application embodiment also provides an electronic device 2000, which includes the display device 1000 as described above. This application embodiment will not be described in detail here.

[0060] The electronic device 2000 provided in this application embodiment can be a mobile phone or any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, medical equipment, industrial control equipment, touch interactive terminal, etc. This application embodiment does not impose any limitations.

[0061] In summary, the display device 1000 provided in this application embodiment includes a winding member 1, a flexible display panel 2, a detection component 3, and a control component 4. The flexible display panel 2 can be wound onto the winding member 1, including a wound state and an unfolded state. In the wound state, the flexible display panel 2 is wound onto the winding member 1. In the unfolded state, the flexible display panel 2 is at least partially unfolded from the winding member 1, with the unfolded portion being the unfolded area A. The detection component 3 includes a sliding resistor 31. The resistive portion 311 of the sliding resistor 31 is fixed to the winding member 1. The sliding portion 312 of the sliding resistor 31 moves relative to the resistive portion 311 as the flexible display panel 2 is wound or unfolded, thereby changing the resistance value of the sliding resistor 31. This allows the control component 4, which is electrically connected to the detection component 3, to control the unfolded area A of the flexible display panel 2 to display display information according to the resistance value. Thus, according to this application embodiment, the control component 4 can control the resolution of the flexible display panel 2 by controlling the display information displayed in the unfolded area A of the flexible display panel 2 based on the resistance value of the sliding resistor 31 of the detection component 3.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A display device, characterized in that, include: Receipts; A flexible display panel that can be wound up into the winding member; The detection component includes a sliding resistor and a stop. The resistive portion of the sliding resistor is fixed to the winding member. The resistive portion includes a spiral channel. The sliding portion of the sliding resistor includes a ball. The ball is partially embedded in the channel and partially mounted on the stop. The stop extends along a first direction. The ball moves relative to the stop along the first direction as the flexible display panel is wound or unwound. The stop and the channel together restrict the sliding direction of the ball. The sliding portion contacts the resistive portion and moves relative to the resistive portion as the flexible display panel is wound or unwound to change the resistance value of the sliding resistor. A control component, electrically connected to the detection component, is used to control the unfolded area of ​​the flexible display panel to display information according to the resistance value; The housing, wherein the stop member is fixed to the housing; The flexible display panel includes a wound state and an unfolded state. In the wound state, the flexible display panel is wound up to the winding member. In the unfolded state, the flexible display panel is at least partially unfolded from the winding member, with the unfolded portion being the unfolded area.

2. The display device according to claim 1, characterized in that, The winding member is located inside the housing. In the winding state, the flexible display panel is housed within the housing. In the unfolded state, the flexible display panel extends at least partially out of the housing along the first direction, and the extended portion is the unfolded area.

3. The display device according to claim 2, characterized in that, The winding component includes an inner shaft and an outer shaft. The outer shaft is sleeved on the inner shaft and rotatably connected to the inner shaft. The inner shaft is fixedly connected to the housing. One end of the flexible display panel is connected to the outer shaft. The outer shaft rotates relative to the inner shaft as the flexible display panel is wound or unwound.

4. The display device according to claim 3, characterized in that, The resistor is disposed at the end of the outer shaft and faces the housing, and the sliding part is disposed between the resistor and the housing.

5. The display device according to claim 4, characterized in that, The ball bearing extends at least partially into the channel and moves relative to the channel as the flexible display panel is rolled up or unfolded.

6. The display device according to claim 5, characterized in that, The number of turns of the flexible display panel wound around the winding member in the winding state is equal to the number of turns of the channel.

7. The display device according to claim 1, characterized in that, The detection assembly also includes an insulating element that covers the stop member and the side of the housing opposite the resistive portion.

8. The display device according to claim 4, characterized in that, The resistor is disposed at one end of the outer shaft; or The two resistors are disposed at both ends of the outer shaft.

9. An electronic device, characterized in that, Includes the display device as described in any one of claims 1-8.

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