Display apparatus and electronic device

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

[0001] The present application relates to the field of display technology, and in particular to a display device and an electronic device. Background Art

[0002] OLED (Organic Light-Emitting Diode) displays are widely used in various fields due to their lightweight, wide viewing angle, fast response, low-temperature resistance, high luminous efficiency, and ability to be made into flexible, curved displays. To facilitate portability and adaptability to various scenarios, existing display devices have been designed with foldable displays. These devices are folded along a fold line, allowing them to be stored and unfolded, allowing for display in the unfolded state and portability in the folded state. However, during use, foldable displays have been found to be prone to creases at the fold line, resulting in poor display quality. Even with motion compensation mechanisms designed into the hinges, the screen in the folded portion deforms with each fold, resulting in creases in the folded area.

[0003] Therefore, existing foldable display devices have a technical problem in which the screen in the bending area is deformed, resulting in more obvious creases in the foldable display device. SUMMARY OF THE INVENTION

[0004] 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 in the folding display device.

[0005] To solve the above problems, the technical solutions provided by this application are as follows:

[0006] An embodiment of the present application provides a display device, comprising:

[0007] The housing includes 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;

[0008] The fixed plate includes a first sub-plate and a second sub-plate that are separately arranged, the first sub-plate being arranged opposite to the fixing member, a slider being provided on the first sub-plate, the slider being slidably connected to the slide rail, the second sub-plate being fixedly connected to the first rotating shaft, and the first rotating shaft being used to drive the second sub-plate to flip;

[0009] A flexible display screen is provided on a side of the fixing plate away from the fixing member, and the flexible display screen is fixedly connected to the fixing plate;

[0010] In the process of the display device moving from the folded state to the 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.

[0011] At the same time, an embodiment of the present application provides an electronic device, which includes the display device as described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0013] FIG. 1 is a schematic diagram of a conventional foldable display device in different states.

[0014] FIG. 2 is a schematic diagram of a conventional rolled display device.

[0015] FIG. 3 is a schematic diagram of a fold of a conventional foldable display device in an unfolded state.

[0016] FIG4 is a schematic diagram of a folded state of a display device provided in an embodiment of the present application.

[0017] FIG5 is a first exploded view of the display device in the expanded state provided by an embodiment of the present application.

[0018] FIG6 is a second exploded view of the display device in the expanded state provided by an embodiment of the present application.

[0019] FIG7 is a schematic diagram of a flexible display screen provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0021] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0023] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0025] As shown in Figures 1 and 2, due to its good flexibility, the OLED display panel can be used as a folding display device and a rollable display device. As shown in Figure 1, the folding display device includes a folding display panel 11 and a support plate 12. As shown in Figure 2, the rollable display device includes a rollable display panel 14 and a scroll 15. During the use of the foldable display device, as shown in Figure 1 (a), when the foldable display device is in a flat state, the foldable display panel 11 will be flat on the support plate 12. As the foldable display device is folded, as shown in Figures 1 (b) and 1 (c), the foldable display panel 11 will bend in the bending area to change the screen size of the foldable display panel. As the foldable display device is folded more times, the foldable display panel 11 will deform. As shown in FIG3 , when the foldable display device is in the unfolded state, the foldable display panel 11 in the bending area will have a depression or a bulge. FIG3 (a) shows that the foldable display panel 11 has a depression in the bending area, and FIG3 (b) shows that the foldable display panel 11 has a bulge in the bending area. Even some foldable display panels 11 may have both depressions and bulges in the bending area, resulting in obvious creases in the bending area of ​​the foldable display device under the illumination 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, creases will still exist due to the deformation of the bending screen. Therefore, the existing foldable display device has a technical problem that the screen in the bending area is deformed, resulting in a more obvious crease in the foldable display device.

[0026] In response to the above technical problems, embodiments of the present application provide a display device and an electronic device to solve the above technical problems.

[0027] Figure 4 is a schematic diagram of a folded display device according to an embodiment of the present application. Figure 5 is a first exploded view of an unfolded display device according to an embodiment of the present application. Figure 6 is a second exploded view of an unfolded display device according to an embodiment of the present application.

[0028] As shown in FIG. 4 to FIG. 6 , an embodiment of the present application provides a display device, wherein the display device 2 includes:

[0029] 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 provided at one end of the fixing member 211.

[0030] 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. The first sub-plate 221 is provided with a slider 25, which is slidably connected to the slide rail 24. The second sub-plate 222 is fixedly connected to the first rotating shaft 212, and the first rotating shaft 212 is used to drive the second sub-plate 222 to flip.

[0031] The flexible display screen 23 is provided 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 ;

[0032] In the process of the display device 2 moving 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.

[0033] An embodiment of the present application provides a display device, which is provided with 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. 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.

[0034] Specifically, the display device in the embodiments 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 stowed state. It is understood that during the folding process of the display device, the display device may have multiple intermediate states. These intermediate states may be folded states, in which case the folded state includes a fully folded state and a partially folded state, or may be unfolded states, 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 may be partially folded (similar to the folding states in FIG. 1 ), and this state may also be considered a 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.

[0035] 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.

[0036] Specifically, the design in the embodiments of the present application is suitable for display devices 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.

[0037] 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 curved part of the flexible display screen will be located between the first sub-panel and the second sub-panel. In the prior art, creases will appear on the curved part 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 creases, and solving the problem of creases in the curved area of ​​the display device in the prior art.

[0038] 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 the 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 the coefficient of the 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 portion of the flexible display corresponding to the first sub-board, and the slider. Since the weight of the flexible display and slider is much less than the weight of the first sub-board, g can be set to the weight of the first sub-board. The crease length of the flexible display can then be determined based on different display devices. The adjustable stroke of the slider and the length of the slide rail can then be determined based on the crease length. For example, the adjustable stroke of the slider can be equal to the crease length, that is, the adjustable stroke of the slider satisfies the above formula. In this case, y is the adjustable stroke of the slider. The slide rail length can be set to equal the crease length, or to half the crease length. The slider can then slide on the slide rail to move the first sub-board, so that the first sub-board moves the flexible display, thereby eliminating the crease in the flexible display. Furthermore, considering that a certain margin is required for the slide rail, the slide rail length can be set to be greater than the crease length.

[0039] Specifically, taking the bending radius x of the flexible display 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 is 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.

[0040] 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.

[0041] Specifically, the slider's adjustable stroke refers to the distance between the bottom and top of the slide rail, within which the slider can slide. For example, if the slider can move to both the bottom and top of the slide rail, the slider's adjustable stroke 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 thirds and the slider can only move at one-third and two-thirds of the rail, the slider's adjustable stroke is one-third of the rail's length.

[0042] Specifically, the flexible display screen may be fixedly connected to the first sub-board and the second sub-board by adhesive.

[0043] Specifically, the first rotating shaft can be fixed to the second sub-plate by screws.

[0044] In some embodiments, as shown in Figures 4 and 5, when the display device 2 moves from the expanded state to the folded state, the slider 25 moves upward along the slide rail 24, so that the first sub-panel 221 drives the flexible display screen 23 to move upward along the slide rail 24. When the display device 2 moves from the expanded 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, and the flexible display screen can move upward and fold normally.

[0045] Specifically, as shown in Figures 4 to 6, the flexible display screen 23 includes a bent portion. When in the unfolded state, the flexible display screen 23 is subjected to the force of the first sub-panel 221, so that the bent portion is forced to move downward. When in the folded state, the flexible display screen 23 is subjected to the force of the first rotating shaft 212, so that the bent portion is forced to move upward. When the flexible display screen is in the folded state, the height of the bent portion close to one end of the first sub-panel is lower than the height of the bent portion close to one end of the first sub-panel when the flexible display screen is in the unfolded state, that is, when the flexible display screen moves from the folded state to the unfolded state, the bent portion close to one end of the first sub-panel moves downward.

[0046] Specifically, as shown in Figures 5 and 6, when the display device is in the unfolded state, the slider 25 on the first sub-panel 221 moves along the slide rail 24 under gravity, so that the first sub-panel 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 resulting in poor display effect, the second sub-panel can drive the flexible display screen to move, and the flexible display screen drives the first sub-panel to move, and the first sub-panel 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 flexible display screen is symmetrically arranged on both sides.

[0047] The matching of a single slide rail and a slider may result in machining dimension errors, resulting in unsmooth sliding. In some embodiments, as shown in Figures 5 and 6, the slide rail 24 includes a first slide rail 241, a second slide rail 242, and a third slide rail 243. The first slide rail 241, the second slide rail 242, and the third slide rail 243 are spaced apart on the fixing member 211, and the second slide rail 242 is disposed between the first slide rail 241 and the third slide rail 243.

[0048] The slider 25 includes at least 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 rails include the first, second, and third slide rails, and the sliders include the first, second, and third sliders, and making the first, second, and third sliders slidably connected to the first, second, and third slide rails, respectively, if a single slider is not sliding smoothly, the other sliders can drive it to slide, thereby driving the first sub-panel to move under the action of gravity, thereby preventing the slider from getting stuck and causing creases in the flexible display.

[0049] 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 set 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 left and right, and 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 to avoid the slider getting stuck and causing creases on the flexible display screen.

[0050] 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 areas of the first sub-board are uniform, thereby preventing the first sub-board from tilting and causing wrinkles on the flexible display screen.

[0051] 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.

[0052] Specifically, the slider can be fixed to the first sub-board by screws, and the slide rail is fixed to the fixing member.

[0053] 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. By ensuring that 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, when the display device is in the unfolded state, the bent area of ​​the flexible display screen is straightened to avoid creases on the flexible display screen. The sliders are located at the bottom end of the slide rails to avoid the sliders still exerting a pulling force on the first sub-panel, causing the first sub-panel to exert a pulling force on the flexible display screen, thereby causing the flexible display screen to deform more. The sliders can support the first sub-panel to avoid excessive gravity on the first sub-panel causing the flexible display screen to deform more, thereby improving the stability of the flexible display screen.

[0054] 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 toward the first sub-panel, and the first sub-panel will generate a pulling force toward the flexible display screen, causing the flexible display screen to be tensilely deformed. Therefore, the embodiment of the present application enables the slider to be at the bottom end of the slide rail when the display device is in the unfolded state, thereby avoiding the flexible display screen from being still tensilely deformed after the crease is eliminated, thereby improving the stability of the flexible display screen.

[0055] In some embodiments, as shown in FIG5 , the slider 25 further includes a fourth slider 254 and a fifth slider 255 . The fourth slider 254 is slidably connected to the first slide rail 241 , with a gap between the first slider 251 and the fourth slider 254 . The fifth slider 255 is slidably connected to the third slide rail 243 , with a gap between the fifth slider 255 and the third slider 253 . By arranging the first and fourth sliders on the first slide rail, and the third and fifth sliders on the third slide rail, the problem of left-right imbalance and rough sliding caused by machining dimensional errors during the manufacture of the display device can be prevented. Furthermore, the five sliders can ensure the flatness of the first sub-panel. Furthermore, the fourth slider is spaced apart from the first slider, and the fifth slider is spaced apart from the third slider. During the sliding process, even if some sliders do not slide smoothly, the other sliders can drive the movement of the sliders, allowing the first sub-panel to move smoothly, thereby eliminating creases in the flexible display.

[0056] 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, the first sub-panel is prevented from tilting, and the flatness of the first sub-panel is better.

[0057] In some embodiments, when the display device is in the folded state, the fourth slider is located at the top of the first slide rail, and the fifth slider is located at the top of the third slide rail. By ensuring that the fourth slider is located at the top of the first slide rail and the fifth slider is located at the top of the third slide rail when the display device is in the folded state, the flexible display screen can be limited in position, preventing the first rotating shaft from continuously pulling the flexible display screen and causing wrinkles on the flexible display screen.

[0058] To address the issue of the heavy weight of the first sub-panel potentially causing significant deformation of the flexible display, in some embodiments, as shown in Figures 5 and 6, the first sub-panel 221 is provided with multiple openings 221a, which are symmetrically arranged about the midline of the first sub-panel 221. Providing multiple openings on the first sub-panel reduces its weight, preventing excessive deformation of the flexible display caused by the heavy weight of the first sub-panel. Furthermore, the symmetrical arrangement of the multiple openings about the midline of the first sub-panel ensures left-right balance of the first sub-panel, preventing the first sub-panel from tilting and causing wrinkles in the flexible display.

[0059] Specifically, as shown in Figure 5, the various parts of the display device are shown in an exploded view. Since the three-dimensional view is shown in a plan view, the fifth slider 255 appears to be located in the opening in Figure 5, but in an actual design, the fifth slider 255 is located on the side where the other opening is located in Figure 5, and the slider may not be set in the opening.

[0060] Specifically, it can be seen that the first sub-board is provided with four openings on the upper side and two openings on both sides. 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.

[0061] In order to address the problem that the flexible display screen still occupies vertical space and is easily damaged when in a folded state, in some embodiments, as shown in FIG6 , the housing 21 further includes a second rotating shaft 31 and a accommodating cavity 32. The second rotating shaft 31 is connected to the fixing member 211. 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 accommodating cavity 32. By providing the second rotating shaft and the accommodating cavity, after the flexible display screen is folded, the second rotating shaft can drive the fixing member to flip, 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 accommodating cavity, avoiding the flexible display screen from occupying vertical space and preventing the flexible display screen from being exposed and damaged.

[0062] In some embodiments, as shown in FIG6 , the housing 21 further includes a third rotating shaft 38, and 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, and the cover plate 34 is disposed on a side of the support member 33 away from the third rotating shaft 38. When the flexible display screen 23 is in the stowed 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, and by fixing the third rotating shaft to the support member, when the flexible display screen is stowed, the cover plate can be flipped over the flexible display screen, placing the display device in the stowed state, protecting the flexible display screen and preventing damage to the flexible display screen.

[0063] Specifically, the cover plate is made of a transparent material, and the support member is made of a transparent material.

[0064] 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.

[0065] 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 .

[0066] Specifically, the flexible circuit board includes a chip-on-film.

[0067] At the same time, an embodiment of the present application provides an electronic device, which includes the display device as described in any of the above embodiments.

[0068] According to the above embodiments, it can be seen that:

[0069] An embodiment of the present application provides 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 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 moving 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 provides 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 will be affected by gravity and slide along the slide rail. The sliding of the slider will move 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.

[0070] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0071] 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 make equivalent replacements for some of the technical features therein. 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

1. 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.

2. The display device according to claim 1, wherein: 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.

3. 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, wherein 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.

4. The display device according to 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 sliders also include 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.

5. The display device according to claim 4, wherein: When the display device is in a folded state, the fourth sliding block is located at the top end of the first sliding rail, and the fifth sliding block is located at the top end of the third sliding rail.

6. The display device according to 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-board, the part of the flexible display screen corresponding to the first sub-board, and the slider.

7. The display device according to claim 6, wherein: The adjustable stroke range of the slider is 1 mm to 200 mm.

8. The display device according to claim 1, wherein: The shell further includes a second rotating shaft and a receiving cavity, wherein 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 received in the receiving cavity.

9. The display device according to claim 8, wherein: The shell also includes a third rotating shaft, and the display device also includes a cover plate and a support plate, wherein 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. 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.

10. The display device according to claim 1, wherein: The first sub-board is provided with a plurality of openings, and the plurality of openings are symmetrically arranged about the midline of the first sub-board.

11. An electronic device, comprising a display device, wherein the display device comprises: 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.

12. The electronic device according to claim 11, wherein: 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.

13. 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, wherein 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.

14. The electronic device according to claim 13, 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 sliders also include 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.

15. The electronic device according to claim 14, wherein: When the display device is in a folded state, the fourth sliding block is located at the top end of the first sliding rail, and the fifth sliding block is located at the top end of the third sliding rail.

16. The electronic device according to 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 part of the flexible display screen corresponding to the first sub-board, and the slider.

17. The electronic device according to claim 16, wherein: The adjustable stroke range of the slider is 1 mm to 200 mm.

18. The electronic device according to claim 11, wherein: The shell further includes a second rotating shaft and a receiving cavity, wherein 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 received in the receiving cavity.

19. The electronic device according to claim 18, wherein: The shell also includes a third rotating shaft, and the display device also includes a cover plate and a support plate, wherein 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. 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.

20. The electronic device according to claim 11, wherein: The first sub-board is provided with a plurality of openings, and the plurality of openings are symmetrically arranged about the midline of the first sub-board.

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