WO2025030632A1 - Display apparatus and electronic device - Google Patents

Abstract

A display apparatus (2) and an electronic device. In the display apparatus (2), a sliding block (25) is provided on a first sub-plate (221), a sliding rail (24) is provided on a fixing member (211), and the sliding block (25) and the sliding rail (24) are slidably connected. Thus, when the display apparatus (2) goes from a folded state to an unfolded state, the sliding block (25) slides along the sliding rail (24) under the effect of gravity, and the sliding of the sliding block (25) drives the first sub-plate (221) to move, so that the first sub-plate (221) drives a flexible display screen (23) to move downwards along the sliding rail (24), thereby reducing or even eliminating creases on the flexible display screen (23).

Description

Display device and electronic device Technical Field

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

Background Art

OLED (Organic Light-Emitting Diode) display devices are widely used in various fields because of their light weight, wide viewing angle, fast response, low temperature resistance, high luminous efficiency, and the ability to produce curved flexible display screens. In order to facilitate carrying and adaptability to different scenarios, existing display devices have designed a folding display device, which is designed to store and unfold the display device by folding the display device along the folding line, so that it can be displayed in the unfolded state and easy to carry in the stored state. However, during the use of the folding display device, it was found that creases are prone to appear at the folding line, resulting in poor display. Even if a motion compensation mechanism is designed on the bending hinge, as the number of folds increases, the screen of the bent part will deform, which will still cause creases in the bent area.

Therefore, the existing folding display device has a technical problem that the screen in the bending area is deformed, resulting in a more obvious crease in the folding display device.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a display device and an electronic device to solve the technical problem that a screen in a bending area of an existing folding display device is deformed, resulting in a more obvious crease of the folding display device.

To solve the above problems, the technical solutions provided by this application are as follows:

An embodiment of the present application provides a display device, which includes:

The housing comprises a fixing member and a first rotating shaft, wherein the fixing member is provided with a slide rail, and the first rotating shaft is arranged at one end of the fixing member;

The fixed plate comprises a first sub-plate and a second sub-plate which are separately arranged, the first sub-plate is arranged opposite to the fixing member, a slider is arranged on the first sub-plate, the slider is slidably connected to the slide rail, the second sub-plate is fixedly connected to the first rotating shaft, and the first rotating shaft is used to drive the second sub-plate to flip;

A flexible display screen is arranged on a side of the fixing plate away from the fixing member, and the flexible display screen is fixedly connected to the fixing plate;

Wherein, when the display device moves from a folded state to an unfolded state, the slider slides along the slide rail under the action of gravity, so that the first sub-board drives the flexible display screen to move downward along the slide rail in the direction of gravity.

At the same time, an embodiment of the present application provides an electronic device, which includes a display device as described in any of the above embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of different states of a conventional foldable display device.

FIG. 2 is a schematic diagram of a conventional rolled display device.

FIG. 3 is a schematic diagram of a fold of a conventional foldable display device in an unfolded state.

FIG. 4 is a schematic diagram of a folded state of a display device provided in an embodiment of the present application.

FIG. 5 is a first exploded view of the display device in the unfolded state provided by an embodiment of the present application.

FIG. 6 is a second exploded view of the display device in the expanded state provided in an embodiment of the present application.

FIG. 7 is a schematic diagram of a flexible display screen provided in an embodiment of the present application.

Embodiments of the present invention

The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and/or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and/or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and/or the use of other materials.

As shown in FIG. 1 and FIG. 2, the OLED display panel can be used as a folding display device and a roll-up display device due to its good flexibility. As shown in FIG. 1, the folding display device includes a folding display panel 11 and a support plate 12. As shown in FIG. 2, the roll-up display device includes a roll-up display panel 14 and a scroll 15. During the use of the folding display device, as shown in FIG. 1 (a), when the folding display device is in a flat state, the folding display panel 11 will be laid flat on the support plate 12. As the folding display device is folded, as shown in FIG. 1 (b) and FIG. 1 (c), the folding display panel 11 will bend in the bending area to change the screen size of the folding display panel. As the number of folding times of the folding display device increases, the folding display panel 11 will deform. As shown in FIG3 , when the folding display device is in the unfolded state, the folding display panel 11 in the bending area will have a depression or a bulge. (a) in FIG3 shows that the bending area of the folding display panel 11 has a depression, and (b) in FIG3 shows that the bending area of the folding display panel 11 has a bulge. Even the bending area of some folding display panels 11 may have both depressions and bulges, resulting in obvious creases in the bending area of the folding display device under the irradiation of external light, which will also affect the display effect during display. Even if some solutions set a motion compensation mechanism on the bending hinge, there will still be creases due to the deformation of the bending screen. Therefore, the existing folding display device has a technical problem that the screen in the bending area is deformed, resulting in a more obvious crease in the folding display device.

In view of the above technical problems, the embodiments of the present application provide a display device and an electronic device to solve the above technical problems.

Figure 4 is a schematic diagram of a folded state of a display device provided in an embodiment of the present application. Figure 5 is a first exploded diagram of an unfolded state of a display device provided in an embodiment of the present application. Figure 6 is a second exploded diagram of an unfolded state of a display device provided in an embodiment of the present application.

As shown in FIG. 4 to FIG. 6 , an embodiment of the present application provides a display device, and the display device 2 includes:

The housing 21 includes a fixing member 211 and a first rotating shaft 212. The fixing member 211 is provided with a slide rail 24. The first rotating shaft 212 is arranged at one end of the fixing member 211.

The fixed plate 22 includes a first sub-plate 221 and a second sub-plate 222 which are separately arranged. The first sub-plate 221 is arranged opposite to the fixing member 211. A slider 25 is arranged on the first sub-plate 221. The slider 25 is slidably connected to the slide rail 24. The second sub-plate 222 is fixedly connected to the first rotating shaft 212. The first rotating shaft 212 is used to drive the second sub-plate 222 to flip.

A flexible display screen 23 is disposed on a side of the fixing plate 22 away from the fixing member 211, and the flexible display screen 23 is fixedly connected to the fixing plate 22;

When the display device 2 is moved from the folded state to the unfolded state, the slider 25 slides along the slide rail 24 under the action of gravity, so that the first sub-board 221 drives the flexible display screen 23 to move downward along the slide rail 24 .

An embodiment of the present application provides a display device, which is provided with a slider on a first sub-panel and a slide rail on a fixing member so that the slider and the slide rail are slidably connected. When the display device is moved from a folded state to an unfolded state, the slider is affected by gravity and slides along the slide rail, and the sliding of the slider moves the first sub-panel, so that the first sub-panel drives the flexible display screen to move downward along the slide rail, thereby reducing or even eliminating protrusions and/or grooves at the bend, thereby reducing or even eliminating creases on the flexible display screen.

Specifically, the display device in the embodiment of the present application may include two states or three states. When the display device includes two states, the display device includes a folded state and an unfolded state. When the display device includes three states, the display device includes a folded state, an unfolded state, and a stored state. It is understandable that during the folding process of the display device, the display device will have multiple intermediate states. These intermediate states may belong to the folded state, in which case the folded state includes a fully folded state and a partially folded state, or may belong to the unfolded state, in which case the unfolded state includes a fully unfolded state and a partially unfolded state. For example, during the folding process, the display device will be partially folded (similar to the folded states in FIG. 1 ), and this state may also be used as the folded state. In the following embodiments, unless otherwise specified, the folded state refers to the fully folded state, and the unfolded state refers to the fully unfolded state.

Specifically, in the embodiment of the present application, the slider slides on the slide rail to drive the first sub-board to move, so that the first sub-board can drive the flexible display screen to move downward along the slide rail. In this process, there is no need to set a driving component, and only gravity is needed to drive the flexible display screen to move, thereby avoiding grooves or protrusions on the flexible display screen, thereby reducing or even eliminating creases.

Specifically, the design in the embodiments of the present application is suitable for a display device in which, when the display device is in a partially expanded state and/or a fully expanded state, the first sub-panel will be affected by gravity to cause the slider to move relative to the slide rail. For example, when the angle between the first sub-panel and the ground is 90 degrees, or when the angle between the first sub-panel and the ground is 45 degrees, the first sub-panel will be affected by gravity to cause the slider to move relative to the slide rail. The corresponding display devices can adopt the design in the embodiments of the present application.

It can be understood that when the display device is in the unfolded state, the first sub-panel will be located on the side of the second sub-panel close to the ground, and the bent portion of the flexible display screen will be located between the first sub-panel and the second sub-panel. In the prior art, a crease will appear on the bent portion of the flexible display screen. In the embodiment of the present application, the first sub-panel is close to the ground, and the slider on the first sub-panel will move along the slide rail under the action of gravity, so that the first sub-panel drives the flexible display screen to move downward along the slide rail, thereby reducing or even eliminating the crease, and solving the problem of creases in the bending area of the display device in the prior art.

Specifically, the adjustable stroke of the slider and the length of the slide rail can be determined according to the length of the crease portion of the flexible display screen corresponding to the crease position. For example, the length of the crease portion of the flexible display screen satisfies the following formula: y=f(x)+Z, wherein f(x) is a deformation variable function, f(x)=πx, Z is a reserved amount, x is a bending radius of the flexible display screen, and the deformation variable is determined according to the bending radius of different flexible display screens. Z is the length generated by considering the deformation variable of the flexible display screen due to gravity, Z=Σ*g, wherein Σ is a constant coefficient, which may refer to a coefficient of unit material load deformation of the flexible display screen. The coefficient has different coefficients depending on the structure and material of the flexible display screen, and may be 1 to 2. g is the first The sum of the weight of the sub-board, the part of the flexible display screen corresponding to the first sub-board and the slider. Since the weight of the flexible display screen and the slider is much smaller than the weight of the first sub-board, g can be made the weight of the first sub-board; the crease length of the flexible display screen can be determined according to different display devices, and then the adjustable stroke of the slider and the length of the slide rail can be determined according to the crease length, for example, the adjustable stroke of the slider is equal to the crease length, that is, the adjustable stroke of the slider satisfies the above formula, at this time, y is the adjustable stroke of the slider; the slide rail length is made equal to the crease length, or the slide rail length is made equal to half of the crease length, then the slider can slide on the slide rail to drive the first sub-board to move, so that the first sub-board drives the flexible display screen to move, thereby eliminating the crease of the flexible display screen. And considering that a certain margin needs to be set for the slide rail, the slide rail length can be made greater than the crease length.

Specifically, taking the bending radius x of the flexible display screen as 25 mm, the constant coefficient Σ as 1.2 mm/kg, the weight g of the first sub-panel as 4 kg, and π as 3.14 as an example, the length of the crease part of the flexible display screen y=3.14*25+1.2*4=83.3 mm. Accordingly, the length of the slide rail can be made greater than 83.3 mm, and the maximum stroke that the slider can move can be controlled to 83.3 mm, thereby eliminating the crease of the flexible display screen.

In some embodiments, the adjustable stroke range of the slider is 1 mm to 200 mm. By making the adjustable stroke range of the slider 1 mm to 200 mm, the display device in the present application can eliminate the creases of different flexible screens.

Specifically, the adjustable stroke of the slider refers to the distance between the bottom end of the slider that can be moved on the slide rail and the top end of the slider that can be moved on the slide rail. The slider can slide within this range. For example, if the slider can move to the bottom and top of the slide rail, the adjustable stroke of the slider is the length of the slide rail. If the slider cannot move from the bottom to the top of the slide rail, for example, if the slide rail is divided into three equal parts and the slider can only move at one-third and two-thirds of the slide rail, the adjustable stroke of the slider is one-third of the length of the slide rail.

Specifically, the flexible display screen may be fixedly connected to the first sub-board and the second sub-board by adhesive.

Specifically, the first rotating shaft can be fixed to the second sub-plate by screws.

In some embodiments, as shown in FIG. 4 and FIG. 5, when the display device 2 changes from the unfolded state to the folded state, the slider 25 moves upward along the slide rail 24, so that the first sub-board 221 drives the flexible display screen 23 to move upward along the slide rail 24. When the display device changes from the unfolded state to the folded state, the slider moves upward along the slide rail, so that the first sub-board drives the flexible display screen to move upward along the slide rail, and the flexible display screen can move upward, and the flexible display screen can be folded normally.

Specifically, as shown in Figures 4 to 6, the flexible display screen 23 includes a bending portion. When in the unfolded state, the flexible display screen 23 is subjected to the force of the first sub-board 221, so that the bending portion is forced to move downward, and when in the folded state, the flexible display screen 23 is subjected to the force of the first rotating shaft 212, so that the bending portion is forced to move upward; when the flexible display screen is in the folded state, the height of the bending portion close to one end of the first sub-board is lower than the height of the bending portion close to one end of the first sub-board when the flexible display screen is in the unfolded state, that is, when the flexible display screen changes from the folded state to the unfolded state, the end of the bending portion close to the first sub-board moves downward.

Specifically, as shown in Figures 5 and 6, when the display device is in the unfolded state, the slider 25 on the first sub-board 221 moves along the slide rail 24 due to gravity, so that the first sub-board 221 drives the flexible display screen 23 to move; when the display device needs to be folded, since the portion of the flexible display screen 23 corresponding to the bending area moves downward compared to when the flexible display screen 23 is in the folded state, in order to avoid the asymmetry of the two sides of the folded flexible display screen causing poor display effect, the second sub-board can drive the flexible display screen to move, and the flexible display screen drives the first sub-board to move, and the first sub-board drives the slider to move, so that the flexible display screen moves upward along the slide rail, and the portion of the flexible display screen corresponding to the bending area rotates along the first axis, and the two sides of the flexible display screen are symmetrically arranged.

The cooperation between a single slide rail and a slider may cause a problem of unsmooth sliding due to machining dimension errors. In some embodiments, as shown in FIG5 and FIG6, the slide rail 24 includes a first slide rail 241, a second slide rail 242 and a third slide rail 243, wherein the first slide rail 241, the second slide rail 242 and the third slide rail 243 are arranged on the fixing member 211 at intervals, and the second slide rail 242 is arranged between the first slide rail 241 and the third slide rail 243;

The slider 25 at least includes a first slider 251, a second slider 252 and a third slider 253. The first slider 251 is slidably connected to the first slide rail 241, the second slider 252 is slidably connected to the second slide rail 242, and the third slider 253 is slidably connected to the third slide rail 243. By making the slide rail include the first slide rail, the second slide rail and the third slide rail, and the slider includes the first slider, the second slider and the third slider, the first slider, the second slider and the third slider are slidably connected to the first slide rail, the second slide rail and the third slide rail respectively, so that when a single slider does not slide smoothly, other sliders can drive the slider to slide, so that the first sub-board can be driven to move under the action of gravity, so as to avoid the slider getting stuck and causing creases on the flexible display screen.

Specifically, as shown in Figure 5, it can be seen that an opening is provided on the fixing member 211 to reduce the weight of the fixing member. The fixing member 211 includes three fixing columns, and the three fixing columns can be arranged at equal intervals. The first slide rail 241, the second slide rail 242 and the third slide rail 243 can be arranged on the three fixing columns, so that the first slide rail and the third slide rail can be symmetrically arranged about the second slide rail, so that the fixing member is balanced on the left and right, and the first slider, the second slider and the third slider are slidably connected to the first slider, the second slider and the third slider respectively to avoid the slider getting stuck and causing creases on the flexible display screen.

Specifically, the first slider and the third slider can be symmetrically arranged with respect to the second slider, so that the strokes of the sliders are consistent and the forces on various regions of the first sub-board are uniform, thereby preventing the first sub-board from tilting and causing wrinkles on the flexible display screen.

Specifically, the length of the second slide rail can be smaller than that of the first slide rail. When the fixing member 211 is opened to reduce the weight of the fixing member 211, the area of the fixing member 211 corresponding to the second slide rail is etched, so that the length of the second slide rail can be smaller than that of the first slide rail.

Specifically, the sliding block can be fixed to the first sub-board by screws, and the sliding rail is fixed to the fixing member.

In some embodiments, when the display device is in the unfolded state, the first slider is located at the bottom end of the first slide rail, the second slider is located at the bottom end of the second slide rail, and the third slider is located at the bottom end of the third slide rail. When the display device is in the unfolded state, the first slider, the second slider, and the third slider are located at the bottom end of the first slide rail, the bottom end of the second slide rail, and the bottom end of the third slide rail, respectively, so that when the display device is unfolded, the bending area of the flexible display screen is straightened to avoid creases on the flexible display screen, and each slider is located at the bottom end of the slide rail to avoid the slider still exerting a pulling force on the first sub-board, resulting in the first sub-board exerting a pulling force on the flexible display screen, thereby causing the deformation of the flexible display screen to increase, and the slider can support the first sub-board to avoid excessive gravity of the first sub-board causing the deformation of the flexible display screen to increase, thereby improving the stability of the flexible display screen.

Specifically, when the display device is in the unfolded state, if the slider is not at the bottom end of the slide rail, the slider will still be affected by gravity and generate a pulling force in the direction of gravity. The slider will generate a pulling force to the first sub-panel, and the first sub-panel will generate a pulling force to the flexible display screen, causing the flexible display screen to be tensilely deformed. Therefore, in the embodiment of the present application, when the display device is in the unfolded state, the slider is at the bottom end of the slide rail, thereby preventing the flexible display screen from being still tensilely deformed after the crease is eliminated, thereby improving the stability of the flexible display screen.

In some embodiments, as shown in FIG5 , the slider 25 further includes a fourth slider 254 and a fifth slider 255, wherein the fourth slider 254 is slidably connected to the first slide rail 241, and there is a gap between the first slider 251 and the fourth slider 254, and the fifth slider 255 is slidably connected to the third slide rail 243, and there is a gap between the fifth slider 255 and the third slider 253. By arranging the first slider and the fourth slider on the first slide rail, and arranging the third slider and the fifth slider on the third slide rail, when preparing the display device, it is possible to prevent the problem of left-right imbalance caused by processing size error and the problem of unsmooth sliding, and the five sliders can ensure the flatness of the first sub-board. The fourth slider is arranged at intervals from the first slider, and the fifth slider is arranged at intervals from the third slider. During the sliding process of the slider, even if some sliders do not slide smoothly, the other sliders can be used to drive the sliders to move, so that the first sub-board can move smoothly, thereby eliminating the creases of the flexible display screen.

Specifically, the distance between the fourth slider and the first slider is equal to the distance between the fifth slider and the third slider, so that the fourth slider and the fifth slider are symmetrically arranged. In the display device, the left and right sides of the first sub-panel are balanced to avoid tilting of the first sub-panel, and the flatness of the first sub-panel is better.

In some embodiments, when the display device is in the folded state, the fourth slider is at the top of the first slide rail, and the fifth slider is at the top of the third slide rail. When the display device is in the folded state, the fourth slider is at the top of the first slide rail, and the fifth slider is at the top of the third slide rail, so that the flexible display screen can be limited to prevent the first rotating shaft from continuously pulling the flexible display screen, causing wrinkles on the flexible display screen.

In order to solve the problem that the heavy weight of the first sub-board may cause a large deformation of the flexible display screen, in some embodiments, as shown in FIG. 5 and FIG. 6, a plurality of openings 221a are provided on the first sub-board 221, and the plurality of openings 221a are symmetrically arranged about the midline of the first sub-board 221. By providing a plurality of openings on the first sub-board, the weight of the first sub-board is light, and the deformation of the flexible display screen caused by the excessive weight of the first sub-board is avoided. Moreover, the plurality of openings are symmetrically arranged about the midline of the first sub-board, so that the left and right sides of the first sub-board can be balanced, and the first sub-board can be avoided from tilting and causing wrinkles on the flexible display screen.

Specifically, as shown in FIG. 5 , various parts of the display device are shown in an exploded view. Since the stereoscopic view is shown in a plan view, the fifth slider 255 appears to be located in the opening in FIG. 5 . However, in an actual design, the fifth slider 255 is located on the side where another opening is located in FIG. 5 , and the slider may not be set in the opening.

Specifically, it can be seen that the first sub-board is provided with four openings on the upper side and two openings on the two sides, and the openings are symmetrically arranged about the midline of the first sub-board, so that the first sub-board is balanced on the left and right, avoiding the first sub-board tilting and causing wrinkles on the flexible display screen.

In view of the problem that the flexible display screen still occupies the vertical space and is easily damaged when in the folded state. In some embodiments, as shown in FIG6 , the housing 21 further includes a second rotating shaft 31 and a receiving cavity 32, wherein the second rotating shaft 31 is connected to the fixing member 211, and the second rotating shaft 31 is used to drive the fixing member 211 to flip, so that the flexible display screen 23 is accommodated in the receiving cavity 32. By providing the second rotating shaft and the receiving cavity, after the flexible display screen is folded, the fixing member can be flipped by the second rotating shaft, the fixing member drives the first rotating shaft to flip, the first rotating shaft drives the second sub-board to flip, and the second sub-board drives the flexible display screen to flip, so that the flexible display screen can be accommodated in the receiving cavity, so as to avoid the flexible display screen occupying the vertical space and avoiding the flexible display screen being exposed and damaged.

In some embodiments, as shown in FIG6 , the housing 21 further includes a third rotating shaft 38, the display device 2 further includes a cover plate 34 and a support member 33, the support member 33 is fixedly connected to the third rotating shaft 38, the cover plate 34 is arranged on a side of the support member 33 away from the third rotating shaft 38, and when the flexible display screen 23 is in the storage state, the third rotating shaft 38 drives the support member 33 to flip, so that the cover plate 34 covers the flexible display screen 23. By providing the third rotating shaft, the support member and the cover plate, the third rotating shaft is fixedly connected to the support member, and when the flexible display screen is stored, the cover plate can be flipped onto the flexible display screen, so that the display device is in the storage state, the flexible display screen is protected, and the loss of the flexible display screen is avoided.

Specifically, the cover plate is made of a transparent material, and the support member is made of a transparent material.

Specifically, as shown in Figure 6, the display device also includes a first motor 35, a second motor 36 and a third motor 37. The first motor 35 is connected to the first rotating shaft 212 for driving the first rotating shaft 212 to rotate, the second motor 36 is connected to the second rotating shaft 31 for driving the second rotating shaft 31 to rotate, and the third motor 37 is connected to the third rotating shaft 38 for driving the third rotating shaft 38 to rotate.

Specifically, as shown in FIG. 7 , the flexible display screen 23 includes a polarizer 41 , an OLED display layer 42 , a flexible support layer 43 , a structural support film 44 , a flexible circuit board 45 and a driving circuit board 46 .

Specifically, the flexible circuit board includes a chip-on-film.

At the same time, an embodiment of the present application provides an electronic device, which includes a display device as described in any of the above embodiments.

According to the above embodiments, it can be seen that:

The embodiments of the present application provide a display device and an electronic device; the display device includes a shell, a fixed plate and a flexible display screen, the shell includes a fixed part and a first rotating shaft, the fixed part is provided with a slide rail, the first rotating shaft is arranged at one end of the fixed part, the fixed plate includes a first sub-plate and a second sub-plate which are separately arranged, the first sub-plate and the fixed part are arranged opposite to each other, a slider is provided on the first sub-plate, the slider is slidably connected to the slide rail, the second sub-plate is fixedly connected to the first rotating shaft, the first rotating shaft is used to drive the second sub-plate to flip, the flexible display screen is arranged on a side of the fixed plate away from the fixed part, and the flexible display screen is fixedly connected to the fixed plate, wherein, in the process of the display device changing from a folded state to an unfolded state, the slider slides along the slide rail under the action of gravity, so that the first sub-plate drives the flexible display screen to move downward along the slide rail. The present application arranges a slider on the first sub-panel and a slide rail on the fixing member so that the slider and the slide rail are slidably connected. Then, when the display device moves from a folded state to an unfolded state, the slider is affected by gravity and slides along the slide rail. The sliding of the slider moves the first sub-panel, so that the first sub-panel drives the flexible display screen to move downward along the slide rail, reducing or even eliminating the protrusions and/or grooves at the bend, thereby reducing or even eliminating the creases on the flexible display screen.

In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

The above is a detailed introduction to a display device and an electronic device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (20)

A display device, comprising: The housing comprises a fixing member and a first rotating shaft, wherein the fixing member is provided with a slide rail, and the first rotating shaft is arranged at one end of the fixing member; The fixed plate comprises a first sub-plate and a second sub-plate which are separately arranged, the first sub-plate is arranged opposite to the fixing member, a slider is arranged on the first sub-plate, the slider is slidably connected to the slide rail, the second sub-plate is fixedly connected to the first rotating shaft, and the first rotating shaft is used to drive the second sub-plate to flip; A flexible display screen is arranged on a side of the fixing plate away from the fixing member, and the flexible display screen is fixedly connected to the fixing plate; Wherein, when the display device moves from a folded state to an unfolded state, the slider slides along the slide rail under the action of gravity, so that the first sub-board drives the flexible display screen to move downward along the slide rail. The display device as claimed in claim 1, wherein, when the display device moves from the unfolded state to the folded state, the slider moves upward along the slide rail so that the first sub-panel drives the flexible display screen to move upward along the slide rail. The display device according to claim 1, wherein the slide rail comprises a first slide rail, a second slide rail and a third slide rail, the first slide rail, the second slide rail and the third slide rail are arranged on the fixing member at intervals, and the second slide rail is arranged between the first slide rail and the third slide rail; The slider at least includes a first slider, a second slider and a third slider, the first slider is slidably connected to the first slide rail, the second slider is slidably connected to the second slide rail, and the third slider is slidably connected to the third slide rail. The display device as claimed in claim 3, wherein, when the display device is in an unfolded state, the first slider is located at the bottom end of the first slide rail, the second slider is located at the bottom end of the second slide rail, and the third slider is located at the bottom end of the third slide rail; the slider also includes a fourth slider and a fifth slider, the fourth slider is slidably connected to the first slide rail, and there is a gap between the first slider and the fourth slider, the fifth slider is slidably connected to the third slide rail, and there is a gap between the fifth slider and the first slider. The display device as claimed in claim 4, wherein, when the display device is in a folded state, the fourth slider is at a top end of the first slider, and the fifth slider is at a top end of the third slider. The display device as claimed in claim 1, wherein the adjustable stroke of the slider satisfies the following formula: y=πx+Σ*g, wherein y is the adjustable stroke of the slider, x is the bending radius of the flexible display screen, Σ is a constant coefficient, and g is the sum of the weight of the first sub-panel, the portion of the flexible display screen corresponding to the first sub-panel, and the slider. The display device according to claim 6, wherein the adjustable stroke range of the slider is 1 mm to 200 mm. The display device as described in claim 1, wherein the shell further includes a second rotating shaft and a accommodating cavity, the second rotating shaft is connected to the fixing member, and the second rotating shaft is used to drive the fixing member to flip so that the flexible display screen is accommodated in the accommodating cavity. The display device as claimed in claim 8, wherein the shell further includes a third rotating shaft, and the display device further includes a cover plate and a support plate, the support plate is fixedly connected to the third rotating shaft, and the cover plate is arranged on a side of the support plate away from the third rotating shaft, and when the flexible display screen is in a stored state, the third rotating shaft drives the support plate to flip so that the cover plate covers the flexible display screen. The display device according to claim 1, wherein the first sub-panel is provided with a plurality of openings, and the plurality of openings are symmetrically arranged about a midline of the first sub-panel. An electronic device includes a display device, wherein the display device includes: The housing comprises a fixing member and a first rotating shaft, wherein the fixing member is provided with a slide rail, and the first rotating shaft is arranged at one end of the fixing member; The fixed plate comprises a first sub-plate and a second sub-plate which are separately arranged, the first sub-plate is arranged opposite to the fixing member, a slider is arranged on the first sub-plate, the slider is slidably connected to the slide rail, the second sub-plate is fixedly connected to the first rotating shaft, and the first rotating shaft is used to drive the second sub-plate to flip; A flexible display screen is arranged on a side of the fixing plate away from the fixing member, and the flexible display screen is fixedly connected to the fixing plate; Wherein, when the display device moves from a folded state to an unfolded state, the slider slides along the slide rail under the action of gravity, so that the first sub-board drives the flexible display screen to move downward along the slide rail. The electronic device as claimed in claim 11, wherein, when the display device moves from the unfolded state to the folded state, the slider moves upward along the slide rail so that the first sub-board drives the flexible display screen to move upward along the slide rail. The electronic device according to claim 11, wherein the slide rail comprises a first slide rail, a second slide rail and a third slide rail, the first slide rail, the second slide rail and the third slide rail are arranged on the fixing member at intervals, and the second slide rail is arranged between the first slide rail and the third slide rail; The slider at least includes a first slider, a second slider and a third slider, the first slider is slidably connected to the first slide rail, the second slider is slidably connected to the second slide rail, and the third slider is slidably connected to the third slide rail. The electronic device as claimed in claim 13, wherein, when the display device is in the unfolded state, the first slider is located at the bottom end of the first slide rail, the second slider is located at the bottom end of the second slide rail, and the third slider is located at the bottom end of the third slide rail; the slider also includes a fourth slider and a fifth slider, the fourth slider is slidably connected to the first slide rail, and there is a gap between the first slider and the fourth slider, the fifth slider is slidably connected to the third slide rail, and there is a gap between the fifth slider and the first slider. The electronic device as claimed in claim 14, wherein, when the display device is in a folded state, the fourth slider is at a top end of the first slider, and the fifth slider is at a top end of the third slider. The electronic device as claimed in claim 11, wherein the adjustable stroke of the slider satisfies the following formula: y=πx+Σ*g, wherein y is the adjustable stroke of the slider, x is the bending radius of the flexible display screen, Σ is a constant coefficient, and g is the sum of the weight of the first sub-board, the portion of the flexible display screen corresponding to the first sub-board, and the slider. The electronic device as claimed in claim 16, wherein the adjustable stroke range of the slider is 1 mm to 200 mm. The electronic device as described in claim 11, wherein the shell further includes a second rotating shaft and a accommodating cavity, the second rotating shaft is connected to the fixing member, and the second rotating shaft is used to drive the fixing member to flip so that the flexible display screen is accommodated in the accommodating cavity. The electronic device as described in claim 18, wherein the shell further includes a third rotating shaft, the display device further includes a cover plate and a support plate, the support plate is fixedly connected to the third rotating shaft, the cover plate is arranged on a side of the support plate away from the third rotating shaft, and when the flexible display screen is in a stored state, the third rotating shaft drives the support plate to flip so that the cover plate covers the flexible display screen. The electronic device as claimed in claim 11, wherein the first sub-board is provided with a plurality of openings, and the plurality of openings are symmetrically arranged about a midline of the first sub-board.