CN117930558B - Display device - Google Patents

Abstract

The invention discloses a display device, which comprises a transparent bistable display member, a dynamic display member and a switching film, wherein the transparent bistable display member is provided with a first side and a second side which are positioned in a first direction, and the first side of the transparent bistable display member is used for displaying pictures; the dynamic display member is arranged on the second side of the transparent bistable display member; the switching film has at least one reflective region and at least one transparent region, the switching film is at least partially located between the transparent bistable display member and the dynamic display member, the switching film is movable in a second direction intersecting the first direction to enable at least the reflective region to be located between the transparent bistable display member and the dynamic display member, or the transparent region to be located between the transparent bistable display member and the dynamic display member. The display device provided by the invention can display static pictures and dynamic pictures, and can give consideration to low refresh rate reflection scenes and high refresh rate dynamic scenes.

Description

Display device

Technical Field

The present invention relates to the field of display technology, and in particular to a display device.

Background Art

At present, display devices are mainly divided into two types: bistable and dynamic. Among them, bistable display technology uses electronic paper displays as the main form of expression, which has the advantage of being able to maintain the image with extremely low power consumption, but there is a problem that it cannot achieve high-speed refresh, so it is suitable for scenes with low refresh rates and front lighting; dynamic display technology uses liquid crystal displays, organic light-emitting diode displays, micro-light-emitting diode displays, etc. as the main form of expression, which has the advantage of being able to achieve high-speed refresh images, but there is a problem that it cannot achieve low power consumption and long-term image maintenance, and the display effect deteriorates under strong light, so it is suitable for high-refresh scenes such as videos and games in non-strong light environments. In the existing technology, there is a lack of display devices that can be used for both low-refresh rate reflective scenes and high-refresh rate dynamic scenes.

Summary of the invention

The main purpose of the present invention is to provide a display device, aiming to solve the problem that the existing display devices cannot take into account both low refresh rate reflective scenes and high refresh rate dynamic scenes.

To achieve the above-mentioned purpose, the present invention proposes a display device, comprising a transparent bistable display component, a dynamic display component and a switching film, wherein the transparent bistable display component has a first side and a second side located in a first direction, and the first side of the transparent bistable display component is used to display a picture; the dynamic display component is arranged on the second side of the transparent bistable display component; the switching film has at least one reflective area and at least one transparent area, and the switching film is at least partially located between the transparent bistable display component and the dynamic display component, and the switching film can be moved along a second direction intersecting with the first direction, so that at least the reflective area is located between the transparent bistable display component and the dynamic display component, or the transparent area is located between the transparent bistable display component and the dynamic display component.

Optionally, the switching film is movable along the second direction so as to enable at least a portion of the reflective area and a portion of the transparent area to be located between the transparent bistable display component and the dynamic display component.

Optionally, it further comprises a shell with at least one end being open, the transparent bistable display component being arranged at the open end of the shell, the first side of the transparent bistable display component facing the outside of the shell; the dynamic display component and the switching film are both located in the shell.

Optionally, a driving unit is further included, and the driving unit is used to drive the switching film to move along the second direction.

Optionally, the driving unit comprises a pair of rotatably arranged rollers, the pair of rollers being arranged on both sides of the transparent bistable display member along the second direction, each of the rollers being parallel to a third direction, and the third direction intersecting the first direction and the second direction;

The switching film is arranged on a pair of the rolling drums, and the rotation of the pair of the rolling drums drives the switching film to move along the second direction.

Optionally, two ends of the switching film are respectively wound on a pair of the reels; or,

The switching film is sleeved on a pair of the winding drums.

Optionally, the driving unit further comprises at least one pair of pre-tightening components, wherein the pair of pre-tightening components are respectively arranged at two ends of one of the reels; each of the pre-tightening components comprises:

a first bearing, sleeved on the end of the reel and slidable along the second direction; and

An elastic member, one end of which is connected to the end of the reel, and the other end of which is connected to the shell along the second direction.

Optionally, each of the pre-tightening components further includes:

a rotating shaft, wherein the rotating shaft is parallel to the third direction, and one end of the rotating shaft is connected to the end of the reel; and

The second bearing is sleeved on the other end of the rotating shaft and can slide along the second direction. One end of the elastic member is connected to the second bearing.

Optionally, each of the preload assemblies further includes an adjusting rod, one end of which is connected to the other end of the elastic member, the other end of which extends along the second direction and passes through the shell, and the other end of which can move along the second direction.

Optionally, the reflective area and the transparent area in the switching film are arranged along the second direction; or,

The switching film includes multiple areas along the second direction, the multiple areas include a first area, a second area and a third area, the first area is a reflective area, the second area is a transparent area, and the third area has at least one reflective area and at least one transparent area.

In the technical solution of the present invention, the switching film is arranged between the transparent bistable display component and the dynamic display component, the switching film has at least one reflective area and at least one transparent area, and the switching film can be moved along the second direction; when used in a low refresh rate reflective scene, the switching film can be moved along the second direction to the point where the reflective area is located between the transparent bistable display component and the dynamic display component, the dynamic display component is not turned on for display, and the transparent bistable display component is turned on for display, and under the reflection effect of the reflective area, the first side of the transparent bistable display component displays a static picture, so that it can be used in a low refresh rate reflective scene; when used in a high refresh rate dynamic scene, the switching film can be moved along the second direction The transparent area is located between the transparent bistable display component and the dynamic display component, the transparent bistable display component is not turned on for display, the transparent bistable display component is in a transparent state, the dynamic display component is turned on for display, and the dynamic picture of the dynamic display component passes through the transparent area and the transparent bistable display component and is displayed on the first side of the transparent bistable display component. The first side of the transparent bistable display component displays the dynamic picture, which can be used for high refresh rate dynamic scenes; by controlling the movement of the switching film, a static picture or a dynamic picture can be selected to be displayed, which can be used for low refresh rate reflective scenes or high refresh rate dynamic scenes, so as to take into account both low refresh rate reflective scenes and high refresh rate dynamic scenes.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic diagram showing the principle of an embodiment of the display device provided by the present invention;

FIG2 is a schematic structural diagram of an embodiment of the display device provided by the present invention;

FIG3 is a schematic structural diagram of another embodiment of the display device provided by the present invention;

FIG4 is a schematic diagram of the structure of FIG2 provided with a pre-tightening assembly;

FIG5 is a schematic diagram of the structure of FIG3 provided with a pre-tightening assembly;

FIG. 6 is a schematic structural diagram of an embodiment of a pre-tightening assembly provided by the present invention.

Description of Figure Numbers:

Label name Label name 1000 Display device 5 Drive unit 1 Transparent bistable display component 51 reel 11 Substrate 52 Preload components 12 Transparent pixel electrode layer 521 First bearing 13 Horizontal electrophoresis layer 522 Elastic parts 14 Protective film 523 Shaft 2 Dynamic Display Components 524 Second bearing 3 Switching membrane 525 Adjustment lever 31 Reflection Area 53 Motor 32 Transparent Area 54 gear 33 Switch indicator area 6 Control unit 4 case

The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

At present, display devices are mainly divided into two types: bistable and dynamic. Among them, bistable display technology uses electronic paper displays as the main form of expression, which has the advantage of being able to maintain the image with extremely low power consumption, but there is a problem that it cannot achieve high-speed refresh, so it is suitable for scenes with low refresh rates and front lighting; dynamic display technology uses liquid crystal displays, organic light-emitting diode displays, micro-light-emitting diode displays, etc. as the main form of expression, which has the advantage of being able to achieve high-speed refresh images, but there is a problem that it cannot achieve low power consumption and long-term image maintenance, and the display effect deteriorates under strong light, so it is suitable for high-refresh scenes such as videos and games in non-strong light environments. In the existing technology, there is a lack of display devices that can be used for both low-refresh rate reflective scenes and high-refresh rate dynamic scenes.

In view of this, the present invention proposes a display device that can display both static and dynamic images, and can take into account both low refresh rate reflective scenes and high refresh rate dynamic scenes. Figures 1 to 6 are embodiments of the display device provided by the present invention.

In the embodiment of the present invention, referring to Figures 1 to 3, the display device 1000 includes a transparent bistable display component 1, a dynamic display component 2 and a switching film 3, the transparent bistable display component 1 has a first side and a second side located in a first direction, the first side of the transparent bistable display component 1 is used to display a picture; the dynamic display component 2 is arranged on the second side of the transparent bistable display component 1; the switching film 3 has at least one reflective area 31 and at least one transparent area 32, the switching film 3 is at least partially located between the transparent bistable display component 1 and the dynamic display component 2, and the switching film 3 can be moved along a second direction intersecting the first direction, so that at least the reflective area 31 is located between the transparent bistable display component 1 and the dynamic display component 2, or the transparent area 32 is located between the transparent bistable display component 1 and the dynamic display component 2.

In the technical solution of the present invention, the switching film 3 is arranged between the transparent bistable display component 1 and the dynamic display component 2, and the switching film 3 has at least one reflective area 31 and at least one transparent area 32, and the switching film 3 can be moved along the second direction; when used in a low refresh rate reflective scene, the switching film 3 can be moved along the second direction until the reflective area 31 is located between the transparent bistable display component 1 and the dynamic display component 2, the dynamic display component 2 is not turned on for display, and the transparent bistable display component 1 is turned on for display, and under the reflection effect of the reflective area, the first side of the transparent bistable display component 1 displays a static picture, so that it can be used in a low refresh rate reflective scene; when used in a high refresh rate dynamic scene, the switching film 3 can be moved along the second direction Move to, the transparent area 32 is located between the transparent bistable display component 1 and the dynamic display component 2, the transparent bistable display component 1 is not turned on for display, the transparent bistable display component 1 is in a transparent state, the dynamic display component 2 is turned on for display, and the dynamic picture of the dynamic display component 2 passes through the transparent area 32 and the transparent bistable display component 1, and is displayed on the first side of the transparent bistable display component 1, and the first side of the transparent bistable display component 1 displays the dynamic picture, which can be used for high refresh rate dynamic scenes; by controlling the movement of the switching film 3, a static picture or a dynamic picture can be selected to be displayed, so as to be used for low refresh rate reflective scenes or high refresh rate dynamic scenes, so as to take into account both low refresh rate reflective scenes and high refresh rate dynamic scenes.

It can be understood that the transparent bistable display component 1 includes an electrophoretic display, which includes a substrate 11, a transparent pixel electrode layer 12, a horizontal electrophoretic layer 13 and a protective film layer 14 arranged in sequence from the second side to the first side, so that the transparent bistable display component 1 can display a static picture above the reflective area 31 and not display a picture above the transparent area 32; the dynamic display component 2 includes a liquid crystal display (LCD), an organic light emitting diode display (OLED) or a micro light emitting diode display (micro LED), etc., which is provided with a backlight module to display dynamic pictures; for the liquid crystal display provided with a backlight module, the light source of the backlight module can be direct-down type, or side-entry type, etc., which can provide a light source so that the liquid crystal display can display dynamic pictures.

In some embodiments of the present invention, the switching film 3 can be moved along the second direction to enable at least a portion of the reflective area 31 and a portion of the transparent area 32 to be located between the transparent bistable display component 1 and the dynamic display component 2. The switching film 3 moves along the second direction until a portion of the reflective area 31 and a portion of the transparent area 32 are located between the transparent bistable display component 1 and the dynamic display component 2, and the first side of the transparent bistable display component 1 displays a partially static and partially dynamic picture, which is conducive to further expanding the application scenarios.

In some embodiments of the present invention, referring to FIG. 2 and FIG. 3 , the display device 1000 further includes a housing 4 with at least one end being open, the transparent bistable display component 1 being disposed at the open end of the housing 4, and the first side of the transparent bistable display component 1 facing the outside of the housing 4; the dynamic display component 2 and the switching film 3 are both located in the housing 4. The housing 4 provides a platform for the installation of the transparent bistable display component 1, the dynamic display component 2 and the switching film 3, and also serves as a protective function.

In some embodiments of the present invention, the display device 1000 further includes a driving unit 5, and the driving unit 5 is used to drive the switching film 3 to move along the second direction. The switching film 3 is controlled to move along the second direction by the driving unit 5, which is easy to operate and convenient to control. It can be understood that the driving unit 5 includes a cylinder, a hydraulic cylinder or a reel mechanism, etc., which can move the switching film 3 along the second direction.

In some embodiments of the present invention, the driving unit 5 includes a pair of rotating rollers 51, the pair of rollers 51 are arranged on both sides of the transparent bistable display component 1 along the second direction, each of the rollers 51 is parallel to the third direction, and the third direction intersects with the first direction and the second direction; the switching film 3 is arranged on the pair of rollers 51, and the rotation of the pair of rollers 51 drives the switching film 3 to move along the second direction. The two ends of each of the rollers 51 can be rotatably connected to the housing 4 respectively, and each of the rollers 51 is at least partially located between the transparent bistable display component 1 and the dynamic display component 2, so that the switching film 3 arranged on the pair of rollers 51 is at least partially located between the transparent bistable display component 1 and the dynamic display component 2; by controlling the same-direction rotation of the pair of rollers 51, the switching film 3 is driven to move along the second direction, the movement of the switching film 3 is stable, easy to control, and conducive to the unfolding of the switching film 3 to ensure the display effect.

In some embodiments of the present invention, the two ends of the switching film 3 are respectively wound on a pair of the reels 51. One end of the switching film 3 is wound on one of the reels 51, and the other end is wound on the other reel 51. By controlling the pair of reels 51 to rotate synchronously in one direction, one end of the switching film 3 continues to be wound on one of the reels 51, and the other reel 51 releases the switching film 3, so that the switching film 3 moves along the second direction. When it is necessary to move in the reverse direction, the pair of reels 51 can be controlled to rotate synchronously in the reverse direction. The pair of reels 51 is in a rotary rotation form, and the display screen is switched by controlling the change of the rotation direction of the pair of reels 51. The length of the switching film 3 can be long enough, and the number and arrangement of the transparent area 32 and the reflective area 31 on the switching film 3 can be set according to the needs without increasing the size of the display device 1000, so as to provide a variety of different display screens.

In some embodiments of the present invention, the switching film 3 is sleeved on a pair of the rollers 51. The switching film 3 is an annular structure, sleeved on a pair of the rollers 51, and the pair of the rollers 51 open the switching film 3; the pair of the rollers 51 can be unidirectionally rotating, and the display screen can be switched by controlling the pair of the rollers 51 to rotate in the same direction; the length of the switching film 3 is short, which is conducive to cost saving, and the rotation of the pair of the rollers 51 is easy to control.

In some embodiments of the present invention, referring to FIG. 4 to FIG. 6 , the driving unit 5 further includes at least one pair of pre-tightening components 52, and the pair of pre-tightening components 52 are respectively arranged at the two ends of one of the reels 51; each of the pre-tightening components 52 includes a first bearing 521 and an elastic member 522, and the first bearing 521 is sleeved on the end of the reel 51 and can slide along the second direction; one end of the elastic member 522 is connected to the end of the reel 51, and the other end is connected to the housing 4 along the second direction. The end of the reel 51 is rotatably and slidably connected to the housing 4 through the first bearing 521, and the pre-tightening force is provided by the elastic member 522, so that the pair of reels 51 tensions the part of the switching film 3 between the transparent bistable display component 1 and the dynamic display component 2, which can further ensure the display effect.

It can be understood that the driving unit 5 may include a pair of the pre-tightening components 52 or two pairs of the pre-tightening components 52. When the driving unit 5 includes a pair of the pre-tightening components 52, the pair of the pre-tightening components 52 are respectively arranged at the two ends of one of the rollers 51. When the driving unit 5 includes two pairs of the pre-tightening components 52, one pair of pre-tightening components 52 is correspondingly arranged for one roller 51. The two pairs of the pre-tightening components 52 can make the tensioning effect of the switching film 3 better, which is beneficial to further ensure the display effect. In addition, the elastic member 522 includes a spring or a spring, etc., which can provide a pre-tightening force along the second direction.

In some embodiments of the present invention, each of the preload components 52 further includes a rotating shaft 523 and a second bearing 524. The rotating shaft 523 is parallel to the third direction, and one end of the rotating shaft 523 is connected to the end of the reel 51. The second bearing 524 is sleeved on the other end of the rotating shaft 523 and can slide along the second direction. One end of the elastic member 522 is connected to the second bearing 524. The end of the reel 51 is further rotatably and slidably connected to the housing 4 through the rotating shaft 523 and the second bearing 524. The rotation of the reel 51 and the sliding along the third direction are more stable. At the same time, the rotating shaft 523 can also provide a space for connecting with a power mechanism.

In some embodiments of the present invention, each of the pre-tightening components 52 further includes an adjusting rod 525, one end of which is connected to the other end of the elastic member 522, the other end of which extends along the second direction and passes through the housing 4, and the other end of the adjusting rod 525 can move along the second direction. By moving the adjusting rod 525 along the second direction, the pre-tightening force provided by the elastic member 522 can be adjusted, so that the pre-tightening force provided by the elastic member 522 is adjustable, further ensuring the tensioning effect of the switching membrane 3 and extending the service life of the pre-tightening component 52.

In some embodiments of the present invention, one end of each adjusting rod 525 is rotatably connected to the other end of the elastic member 522, and each adjusting rod 525 is a threaded rod. A matching threaded hole is provided on the housing 4 corresponding to the adjusting rod 525, and the adjusting rod 525 is threadedly connected to the threaded hole. By rotating the adjusting rod 525, the adjusting rod 525 can be moved along the second direction, thereby adjusting the preload force provided by the elastic member 522, which is easy to operate and has a stable connection.

In some embodiments of the present invention, the driving unit 5 further includes a motor 53, the motor 53 is arranged on the first bearing 521, and the output shaft of the motor 53 is in transmission connection with the rotating shaft 523. When the two ends of the switching membrane 3 are respectively wound on a pair of the reels 51, the motor 53 is provided in two, and one motor 53 is provided corresponding to one reel 51, the first bearing 521 can drive the motor 53 to move along the second direction, the output shafts of the two motors 53 rotate synchronously in the same direction, and drive the rotating shaft 523 to rotate through the transmission action, thereby driving the pair of reels 51 to rotate synchronously in the same direction. When the switching membrane 3 is sleeved on a pair of the rollers 51, the motor 53 is set to one, and the first bearing 521 can drive the motor 53 to move along the second direction. The rotation of the output shaft of the motor 53 drives the rotating shaft 523 to rotate through the transmission action, and then drives one of the rollers 51 to rotate. The rotation of one of the rollers 51 drives the rotation of the other roller 51 through the switching membrane 3, and then drives the pair of rollers 51 to rotate in the same direction; the motor 53 controls the pair of rollers 51 to rotate in the same direction, which is easy to control.

It can be understood that when the preload assembly 52 is not provided on the reel 51, the output shaft of the motor 53 can be connected to the end of the reel 51 to drive the reel 51 to rotate; the transmission connection between the output shaft of the motor 53 and the rotating shaft 523 may include belt drive, chain drive or gear drive, etc., wherein the output shaft of the motor 53 is connected to the rotating shaft 523 through a gear 54, with a compact structure and stable transmission.

In some embodiments of the present invention, the display device 1000 also includes a control unit 6, which is electrically connected to the motor 53, the transparent bistable display component 1 and the dynamic display component 2. The control unit 6 controls the rotation of the motor 53, the opening and closing of the transparent bistable display component 1, and the opening and closing of the dynamic display component 2, so as to control the display screen.

In some embodiments of the present invention, the reflective area 31 and the transparent area 32 of the switching film 3 are arranged along the second direction. When the switching film 3 moves along the second direction until the reflective area 31 is located between the transparent bistable display component 1 and the dynamic display component 2, the first side of the transparent bistable display component 1 displays a static picture; when the switching film 3 moves along the second direction until the transparent area 32 is located between the transparent bistable display component 1 and the dynamic display component 2, the first side of the transparent bistable display component 1 displays a dynamic picture; when the switching film 3 moves along the second direction until a part of the reflective area 31 and a part of the transparent area 32 are located between the transparent bistable display component 1 and the dynamic display component 2, the first side of the transparent bistable display component 1 displays a partially static and partially dynamic picture. The switching film 3 has a simple structure and is easy to control.

It can be understood that a switching indication area 33 may be provided between the reflective area 31 and the transparent area 32 to facilitate the positioning of the switching film 3 .

In some embodiments of the present invention, the switching film 3 includes a plurality of regions along the second direction, and the plurality of regions include a first region, a second region, and a third region, the first region is a reflective region 31, the second region is a transparent region 32, and the third region has at least one reflective region 31 and at least one transparent region 32. When the switching film 3 moves along the second direction to the point where the first region is between the transparent bistable display component 1 and the dynamic display component 2, the first side of the transparent bistable display component 1 displays a static image; when the switching film 3 moves along the second direction to the point where the second region is between the transparent bistable display component 1 and the dynamic display component 2, the first side of the transparent bistable display component 1 displays a dynamic image; when the switching film 3 moves along the second direction to the point where the third region is between the transparent bistable display component 1 and the dynamic display component 2, the first side of the transparent bistable display component 1 displays a partially static and partially dynamic image; in the third region, the number of the reflective region 31 and the transparent region 32 There is no limitation on the quantity, shape and arrangement, and there may be one reflective area 31 and a plurality of transparent areas 32, or a plurality of reflective areas 31 and a single transparent area 32, or a plurality of reflective areas 31 and a plurality of transparent areas 32, and so on. The shapes of the reflective areas 31 and the transparent areas 32 may be square, circular or petal-shaped, and so on. The arrangement of the reflective areas 31 and the transparent areas 32 may be that the reflective area 31 is located outside the transparent area 32, and the transparent area 32 is located outside the reflective area 31, a plurality of reflective areas 31 and a plurality of transparent areas 32 are arranged at intervals, and so on. The switching film 3 may also include a plurality of third areas, which can display different dynamic and static mixed images as required.

In some embodiments of the present invention, the transparent bistable display component 1 includes a horizontal color electrophoretic electronic paper display. When the transparent bistable display component 1 is a horizontal color electrophoretic electronic paper display, the colors of the displayed static images are richer.

The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A display device, comprising: A transparent bistable display member having a first side and a second side located in a first direction, wherein the first side of the transparent bistable display member is used for displaying images; a dynamic display component, disposed on the second side of the transparent bistable display component; and A switching film having at least one reflective area and at least one transparent area, wherein the switching film is at least partially located between the transparent bistable display component and the dynamic display component, and the switching film can be moved along a second direction intersecting with the first direction so that at least the reflective area is located between the transparent bistable display component and the dynamic display component, or the transparent area is located between the transparent bistable display component and the dynamic display component. 2. The display device as described in claim 1 is characterized in that the switching film can be moved along the second direction so that at least a part of the reflective area and a part of the transparent area are located between the transparent bistable display component and the dynamic display component. 3. The display device as described in claim 1 is characterized in that it also includes a shell with at least one end open, the transparent bistable display component is arranged at the open end of the shell, and the first side of the transparent bistable display component faces the outside of the shell; the dynamic display component and the switching film are both located in the shell. 4 . The display device according to claim 3 , further comprising a driving unit, wherein the driving unit is used to drive the switching film to move along the second direction. 5. The display device according to claim 4, characterized in that the driving unit comprises a pair of rotatably arranged rollers, the pair of rollers being arranged on both sides of the transparent bistable display member along the second direction, each of the rollers being parallel to a third direction, and the third direction intersecting the first direction and the second direction; The switching film is arranged on a pair of the rolling drums, and the rotation of the pair of the rolling drums drives the switching film to move along the second direction. 6. The display device according to claim 5, characterized in that two ends of the switching film are respectively wound on a pair of the winding drums; or The switching film is sleeved on a pair of the winding drums. 7. The display device according to claim 5, characterized in that the driving unit further comprises at least one pair of pre-tightening components, wherein the pair of pre-tightening components are respectively arranged at two ends of one of the reels; each of the pre-tightening components comprises: a first bearing, sleeved on the end of the reel and slidable along the second direction; and An elastic member, one end of which is connected to the end of the reel, and the other end of which is connected to the shell along the second direction. 8. The display device according to claim 7, characterized in that each of the pre-tightening components further comprises: a rotating shaft, wherein the rotating shaft is parallel to the third direction, and one end of the rotating shaft is connected to the end of the reel; and The second bearing is sleeved on the other end of the rotating shaft and can slide along the second direction. One end of the elastic member is connected to the second bearing. 9. The display device as described in claim 7 is characterized in that each of the pre-tightening components also includes an adjusting rod, one end of the adjusting rod is connected to the other end of the elastic member, the other end of the adjusting rod extends along the second direction and passes through the shell, and the other end of the adjusting rod can move along the second direction. 10. The display device according to claim 1, wherein the reflective area and the transparent area in the switching film are arranged along the second direction; or The switching film includes multiple areas along the second direction, the multiple areas include a first area, a second area and a third area, the first area is a reflective area, the second area is a transparent area, and the third area has at least one reflective area and at least one transparent area.