Display device

Abstract

A display apparatus is disclosed. The display apparatus includes a display panel, a first lifting member connected to one side of the display panel and including a first lifting member that rotates in a first rotation direction, a second lifting member connected to the other side of the display panel and including a second lifting member that rotates in a second rotation direction different from the first rotation direction, a driving member connected to the first lifting member and the second lifting member, the driving member rotating the first lifting member and the second lifting member, a first link member having one side connected to the first lifting member, a second link member having one side connected to the second lifting member, a first synchromesh gear connected to the other side of the first link member, and a second synchromesh gear engaged with the first synchromesh gear and connected to the other side of the second link member.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0085882, filed on July 13, 2020, with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to display devices. Background Technology

[0004] Flexible display panels can be made from flexible materials instead of traditional rigid glass substrates, such as plastic materials that can be bent like paper.

[0005] Display devices using this type of flexible display panel can be classified as flexible display devices and foldable display devices, etc. Flexible display devices can be bent without breaking, while foldable display devices can be folded.

[0006] Recently, research has been conducted on rollable display devices, in which the flexible display panel can be rolled onto or unrolled from a roller when needed. Summary of the Invention

[0007] An aspect of the present invention is to provide a display device capable of uniformly or differently adjusting the lifting speed of one part and another part of a display panel.

[0008] However, the aspects of the invention are not limited to those set forth herein. These and other aspects of the invention will become more apparent to those skilled in the art from the following detailed description of the invention.

[0009] In an embodiment, the display device may include: a display panel; a first lifting member connected to one side of the display panel and including a first lifting member that rotates in a first rotation direction; a second lifting member connected to the other side of the display panel and including a second lifting member that rotates in a second rotation direction different from the first rotation direction; a driving member connected to the first lifting member and the second lifting member, the driving member rotating the first lifting member and the second lifting member; a first linkage member having a side connected to the first lifting member; a second linkage member having a side connected to the second lifting member; a first synchronizing gear connected to the other side of the first linkage member, the first synchronizing gear rotating with the rotation of the first lifting member; and a second synchronizing gear engaging with the first synchronizing gear and connected to the other side of the second linkage member, the second synchronizing gear rotating with the rotation of the second lifting member.

[0010] In one embodiment, the driving component may include a linear motor that expands or contracts in the width direction of the display panel.

[0011] In one embodiment, one side of the drive member can be rotatably connected to the first lifting member, and the other side of the drive member can be rotatably connected to the second lifting member.

[0012] In one embodiment, one side of the driving member can be connected to the middle part of the first lifting member, and the other side of the driving member can be connected to the middle part of the second lifting member.

[0013] In one embodiment, when the display panel rises, the driving member can extend to increase the distance between the first lifting member and the second lifting member, and when the display panel falls, the driving member can shorten to decrease the distance between the first lifting member and the second lifting member.

[0014] In one embodiment, the driving member can move upward when the display panel rises, and the driving member can move downward when the display panel falls.

[0015] In an embodiment, the display device may further include: a third lifting member connected to the upper part of the display panel; a fourth lifting member spaced apart from the third lifting member and connected to another upper part of the display panel; a first connecting member connecting one side of the first lifting member to one side of the third lifting member; and a second connecting member connecting one side of the second lifting member to one side of the fourth lifting member.

[0016] In one embodiment, the display device may further include a panel support member that covers at least a portion of the surface of the display panel and includes multiple segments. The other side of the third lifting member and the other side of the fourth lifting member may be rotatably connected to the panel support member.

[0017] In this embodiment, the height of the first lifting member can be changed by the rotation of the first lifting member, the height of the second lifting member can be changed by the rotation of the second lifting member, and the ratio of the height change of the second lifting member to the height change of the first lifting member can be determined by the gear ratio of the first synchronous gear and the second synchronous gear.

[0018] In the implementation, the gear ratio of the first synchronous gear and the second synchronous gear can be 1:1, and when the display panel rises or falls, the lifting speed of one side of the display panel can be equal to the lifting speed of the other side of the display panel.

[0019] In this embodiment, the number of teeth of the first synchronous gear may be different from the number of teeth of the second synchronous gear, and the lifting speed of one side of the display panel may be different from the lifting speed of the other side of the display panel.

[0020] In one embodiment, the first lifting member may include a first rod member and a first linkage connecting member protruding toward the first synchronizing gear, and the second lifting member may include a second rod member and a second linkage connecting member protruding toward the second synchronizing gear.

[0021] In one embodiment, the protruding length of the first connecting member can be equal to or less than the radius of the first synchronizing gear, and the protruding length of the second connecting member can be equal to or less than the radius of the second synchronizing gear.

[0022] In an embodiment, the display device may further include: a first support member supporting a first lifting member; a second support member supporting a second lifting member; a first connecting member rotatably connecting a first link connecting member to a first link member; and a second connecting member rotatably connecting a second link connecting member to a second link member.

[0023] In one embodiment, the first support member may include a first guide groove that guides the movement path of the first connecting member, and the second support member may include a second guide groove that guides the movement path of the second connecting member.

[0024] In one embodiment, the first linkage member and the second linkage member can move upward when the display panel rises, and the first linkage member and the second linkage member can move downward when the display panel falls.

[0025] In an embodiment, the display panel may further include: a first stop that protrudes in a direction intersecting the length direction of the first link member and limits the maximum descent distance of the first link member; and a second stop that protrudes in a direction intersecting the length direction of the second link member and limits the maximum descent distance of the second link member.

[0026] In one embodiment, the display panel may further include: a first stop surface disposed below the first stop member; and a second stop surface disposed below the second stop member. When the display panel is lowered to its maximum extent, the first stop member may contact the first stop surface, and the second stop member may contact the second stop surface.

[0027] In one embodiment, the first and second synchronizing gears may each include a position marker, which identifies whether the display panel is raised to its maximum height.

[0028] In this implementation, the first synchronizing gear and the second synchronizing gear can each be a helical gear.

[0029] The display device according to the embodiment can uniformly or differently adjust the lifting speed of one part and another part of the display panel.

[0030] The effects of this disclosure are not limited to those described above, and various other effects are included in the specification. Attached Figure Description

[0031] The above and other aspects and features of this disclosure will become more apparent from the detailed description of embodiments thereof with reference to the accompanying drawings, in which:

[0032] Figure 1 This is a perspective view of the display device according to the embodiment;

[0033] Figure 2 This is a perspective view showing a display panel being pulled into the housing of a display device according to an embodiment;

[0034] Figure 3 This is a perspective view showing the rear surface of the display device according to an embodiment;

[0035] Figure 4 This is a front view of a display device in which the display panel is pulled out according to an embodiment.

[0036] Figure 5 This is a front view of the display panel being pulled in according to the embodiment;

[0037] Figure 6 yes Figure 4 A magnified view of part 'A';

[0038] Figure 7 yes Figure 4 A magnified view of part 'B';

[0039] Figure 8 yes Figure 5 A magnified view of part 'C';

[0040] Figure 9 yes Figure 5 A magnified view of part 'D';

[0041] Figure 10A A first synchronizing gear according to an embodiment is shown;

[0042] Figure 10B A first synchronizing gear according to another embodiment is shown;

[0043] Figure 11A This is a view showing the lifting speed of the display panel according to the gear ratio between the first and second synchronizing gears; and

[0044] Figure 11B This is a view showing the lifting speed of the display panel based on the adjusted gear ratio between the first and second synchronizing gears. Detailed Implementation

[0045] The invention will now be described more fully below with reference to the accompanying drawings, in which embodiments of the invention are illustrated. However, the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0046] Throughout this specification, the same reference numerals denote the same components. In the drawings, the thickness of layers and regions may be exaggerated for clarity and ease of explanation. Therefore, since the dimensions and thicknesses of the components in the drawings can be arbitrarily shown for ease of explanation, the following embodiments of this disclosure are not limited to the dimensions and thicknesses of the components in the drawings.

[0047] As used herein, unless the context clearly indicates otherwise, expressions used in the singular (such as “a”, “an”, and “the”) are also intended to include the plural form.

[0048] It should be understood that the terms “comprises,” “comprising,” “includes,” “including,” “have,” “having,” “contains,” “containing,” etc., are intended to specify the presence of the stated features, wholes, steps, operations, elements, components, or combinations thereof in this disclosure, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, or combinations thereof.

[0049] In the description, it will be understood that when an element (region, layer, section, etc.) is referred to as being "on", "connected to", or "attached to" another element, it can be directly on, directly connected to, or directly attached to the other element, or one or more intermediary elements can be placed between them.

[0050] As used herein, the term “and / or” includes any and all combinations of one or more of the relevant listed items. For example, “A and / or B” can be understood to mean “A, B, or A and B”. The terms “and” and “or” can be used in a combined or separate sense and can be understood as equivalent to “and / or”.

[0051] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of embodiments of the inventive concept, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0052] The terms "below," "down," "above," "up," etc., are used to describe the relationships of the configurations shown in the accompanying drawings. These terms are used as relative concepts and are described with reference to the directions shown in the accompanying drawings.

[0053] As used herein, the terms “about” or “approximately” include the value and the average of the recorded value within an acceptable range of deviations as determined by a person skilled in the art, taking into account the measurement in question and the errors associated with the measurement of the recorded quantity (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations, or within ±20%, ±10%, or ±5% of the value.

[0054] Unless otherwise defined or implied herein, all terms used (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that terms, such as those defined in common dictionaries, shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field, and shall not be interpreted as having an ideal or overly formal meaning unless clearly defined in the specification.

[0055] The embodiments will be described in detail below with reference to the accompanying drawings.

[0056] Figure 1 This is a perspective view of a display device according to an embodiment. Figure 2 This is a perspective view showing a display panel being pulled into the housing of a display device according to an embodiment. Figure 3 This is a perspective view showing the rear surface of a display device according to an embodiment. Figure 4 This is a front view of a display device with the display panel pulled out according to an embodiment.

[0057] In the following text, the first direction DR1, the second direction DR2, and the third direction DR3 intersect each other in different directions. The first direction DR1 can be horizontal. The second direction DR2 can be vertical. The third direction DR3 can be the thickness direction. The first direction DR1, the second direction DR2, and / or the third direction DR3 can include two or more directions. For example, the third direction DR3 can include an upward direction toward the upper side of the drawing and a downward direction toward the lower side of the drawing. Therefore, one surface of the member facing upward can be referred to as the top surface, and another surface of the member facing downward can be referred to as the bottom surface. However, direction refers to relative direction and is not limited to the examples above.

[0058] In the following description, the display device 1 may be a rollable display device having a flexible display panel 10, at least a portion of which is wound and / or unfolded by rollers RR, but this disclosure is not limited thereto.

[0059] Reference Figures 1 to 4 The display device 1 includes a display panel 10, a first lifting member 41, a second lifting member 42, a drive member 50, a first connecting rod member 61, a second connecting rod member 62, a first synchronous gear 71, and a second synchronous gear 72. The display panel 10 may also include a roller RR, a panel support member 20, a housing 30, a first support member 81, a second support member 82, a first stop member 91, and a second stop member 92.

[0060] Display panel 10 displays a screen or image. Examples of display panel 10 may include not only self-emissive display panels but also light-receiving display panels. Self-emissive display panels may include organic light-emitting display (OLED) panels, inorganic electroluminescent (EL) display panels, quantum dot light-emitting display (QED) panels, micro LED display panels, nano LED display panels, plasma display panels (PDP), field emission display (FED) panels, and cathode ray tube (CRT) display panels. Light-receiving display panels may include liquid crystal display (LCD) panels and electrophoretic display (EPD) panels.

[0061] The display panel 10 may be flexible to bend. In one embodiment, the display panel 10 may be mounted within the housing 30 while at least partially wound around the roller RR. The display panel 10 may be wound around or unwound from the roller RR to be pulled in or out through an opening on the top of the housing 30 as the display panel 10 descends or ascends.

[0062] A panel support member 20 supports a display panel 10. In embodiments, the panel support member 20 may be a plate-shaped member covering at least a portion of the surface of the display panel 10, but this disclosure is not limited thereto. The panel support member 20 may include sections 21 rotatably connected to each other. Thus, the panel support member 20 may be attached to the surface of the display panel 10 to be wound together with or unwound from the roller RR. In embodiments, the panel support member 20 may be a cover member, such as a bracket and / or frame, coupled to the top end of the display panel 10 to raise or lower one end of the display panel 10.

[0063] The roller RR can be formed from a cylindrical member to unwind or wind the display panel 10 as it rises or falls.

[0064] The housing 30 may have an opening at its top through which the display panel 10 is pulled in and out, and the housing 30 provides an internal space therein for accommodating the display panel 10. In embodiments, the housing 30 may have a rectangular parallelepiped shape with an opening at its top, but is not limited thereto.

[0065] The first lifting member 41 is connected to one side of the display panel 10. One side of the display panel 10 can be the upper part of the display panel 10, for example, the upper right corner portion of the display panel 10. The length of the first lifting member 41 can vary in a third direction DR3 to raise or lower one side of the display panel 10. The length in the third direction DR3 can be the height. The third direction DR3 can be the length direction of the display panel 10.

[0066] The second lifting member 42 is spaced apart from the first lifting member 41 and connected to the other side of the display panel 10. The other side of the display panel 10 may be the other side of the upper part of the display panel 10, for example, the upper left corner of the display panel 10. The length of the second lifting member 42 may vary in the third direction DR3 to raise or lower the other side of the display panel 10. The length in the third direction DR3 may be the height. The third direction DR3 may be the length direction of the display panel 10.

[0067] The first lifting member 41 and the second lifting member 42 may each include a raising member and at least one connecting member rotatably connected to the raising member, the raising member being folded and unfolded to change its length in a third direction DR3. In an embodiment, the first lifting member 41 and the second lifting member 42 may each include two raising members and a connecting member connecting them.

[0068] For ease of explanation, the connecting members of the first lifting member 41 and the second lifting member 42 are respectively referred to as the first connecting member CM1 and the second connecting member CM2. The lifting member located below the first connecting member CM1 is referred to as the first lifting member EM1, the lifting member located below the second connecting member CM2 is referred to as the second lifting member EM2, the lifting member located above the first connecting member CM1 is referred to as the third lifting member EM3, and the lifting member located above the second connecting member CM2 is referred to as the fourth lifting member EM4. However, the above references are for illustrative purposes only, and the embodiments are not limited thereto.

[0069] In one embodiment, the first lifting member EM1, the second lifting member EM2, the third lifting member EM3, and the fourth lifting member EM4 can each be made into a long strip-shaped metal frame. In another embodiment, the first lifting member EM1, the second lifting member EM2, the third lifting member EM3, and the fourth lifting member EM4 can each be implemented as a connecting rod, a cylinder, or an arm.

[0070] One side of the first lifting member EM1 can be rotatably connected to the first connecting member CM1, and the other side can be rotatably connected to the first support member 81, which will be described later. In an embodiment, the other side of the first lifting member EM1 can be bent into an L-shape toward the first synchronizing gear 71.

[0071] The first lifting member EM1 may include a first rod member RD1 and a first connecting rod member LC1.

[0072] The first rod member RD1 can extend straight between the first connecting member CM1 and the first support member 81. One end of the first rod member RD1 can be rotatably connected to the first connecting member CM1, and the other end of it can be rotatably connected to the first support member 81.

[0073] The first link connecting member LC1 can be connected to the other end of the first link member RD1 and can extend to protrude in a direction intersecting the length direction of the first link member RD1. The first link connecting member LC1 can protrude from the other end of the first link member RD1 toward the first synchronizing gear 71, such that the first lifting member EM1 has an L-shape and can be rotatably connected to the first support member 81 at the other end of the first link member RD1 and / or at the portion where the first link member RD1 and the first link connecting member LC1 intersect each other. The length of the first link connecting member LC1 can be shorter than the first lifting member EM1. The length of the first link connecting member LC1 can be equal to or less than the radius of the first synchronizing gear 71. In an embodiment, the first link connecting member LC1 can extend to intersect the length direction of the first link member RD1 at approximately 90 degrees, but is not limited thereto.

[0074] The second lifting member EM2 may include a second rod member RD2 and a second connecting rod member LC2.

[0075] The second rod member RD2 can extend straight between the second connecting member CM2 and the second support member 82. One end of the second rod member RD2 can be rotatably connected to the second connecting member CM2, and the other end can be rotatably connected to the second support member 82.

[0076] The second link connecting member LC2 can be connected to the other end of the second link member RD2 and can extend to protrude in a direction intersecting the length direction of the second link member RD2. The second link connecting member LC2 can protrude from the other end of the second link member RD2 toward the second synchronizing gear 72, such that the second lifting member EM2 has an L-shape, and can be rotatably connected to the second support member 82 at the other end of the second link member RD2 and / or at the portion where the second link member RD2 and the second link connecting member LC2 intersect each other. The length of the second link connecting member LC2 can be shorter than the second lifting member EM2. The length of the second link connecting member LC2 can be equal to or less than the radius of the second synchronizing gear 72. In an embodiment, the second link connecting member LC2 can extend to intersect the length direction of the second link member RD2 at approximately 90 degrees, but is not limited thereto.

[0077] One side of the third lifting member EM3 can be rotatably connected to the first connecting member CM1, and the other side of the third lifting member EM3 can be connected to one side of the display panel 10. As described above, one side of the display panel 10 can be the upper right corner portion of the display panel 10. The other side of the third lifting member EM3 can be rotatably connected to the panel support member 20 that covers one side of the display panel 10.

[0078] One side of the fourth lifting member EM4 can be rotatably connected to the second connecting member CM2, and the other side of the fourth lifting member EM4 can be connected to the other side of the display panel 10. As described above, the other side of the display panel 10 can be the upper left corner portion of the display panel 10. The other side of the fourth lifting member EM4 can be rotatably connected to the panel support member 20 that covers the other side of the display panel 10.

[0079] The first connecting member CM1 can connect one side of the first raising member EM1 to one side of the third raising member EM3. One side of the first raising member EM1 and one side of the third raising member EM3 can each be rotatably connected to the first connecting member CM1, and when the display panel 10 rises or falls, the first raising member EM1 and the third raising member EM3 can rotate around the first connecting member CM1 in different directions. Therefore, the first raising member EM1 and the third raising member EM3 can form a variable angle.

[0080] For example, when the display panel 10 is lowered, the first lifting member EM1 can rotate counterclockwise around the first connecting member CM1, and the third lifting member EM3 can rotate clockwise around the first connecting member CM1. The angle formed between the first lifting member EM1 and the third lifting member EM3 can decrease, and the other side of the first lifting member EM1 and the other side of the third lifting member EM3 can move closer to each other. When the display panel 10 is raised, the first lifting member EM1 can rotate clockwise around the first connecting member CM1, and the third lifting member EM3 can rotate counterclockwise around the first connecting member CM1. The angle formed between the first lifting member EM1 and the third lifting member EM3 can increase, and the other side of the first lifting member EM1 and the other side of the third lifting member EM3 can move further apart from each other.

[0081] In the implementation, one side of the first lifting member EM1 and one side of the third lifting member EM3 may each include a gear, and the first connecting member CM1 may cover the side of the first lifting member EM1 with the gear and the side of the third lifting member EM3 with the gear.

[0082] The second connecting member CM2 can connect one side of the second lifting member EM2 to one side of the fourth lifting member EM4. One side of the second lifting member EM2 and one side of the fourth lifting member EM4 can each be rotatably connected to the second connecting member CM2, and when the display panel 10 rises or falls, the second lifting member EM2 and the fourth lifting member EM4 can rotate around the second connecting member CM2 in different directions. Therefore, the second lifting member EM2 and the fourth lifting member EM4 can form a variable angle.

[0083] For example, when the display panel 10 is lowered, the second lifting member EM2 can rotate clockwise around the second connecting member CM2, and the fourth lifting member EM4 can rotate counterclockwise around the second connecting member CM2. The angle formed between the second lifting member EM2 and the fourth lifting member EM4 can decrease, and the other side of the second lifting member EM2 and the other side of the fourth lifting member EM4 can move closer to each other. When the display panel 10 is raised, the second lifting member EM2 can rotate counterclockwise around the second connecting member CM2, and the fourth lifting member EM4 can rotate clockwise around the second connecting member CM2. The angle formed between the second lifting member EM2 and the fourth lifting member EM4 can increase, and the other side of the second lifting member EM2 and the other side of the fourth lifting member EM4 can move further apart from each other.

[0084] In one embodiment, one side of the second lifting member EM2 and one side of the fourth lifting member EM4 may each include a gear, and the second connecting member CM2 may cover the side of the second lifting member EM2 with the gear and the side of the fourth lifting member EM4 with the gear.

[0085] When the display panel 10 rises or falls, the distance between the first connecting member CM1 and the second connecting member CM2 can vary along a first direction DR1. The first direction DR1 can be the width direction of the display panel 10. For example, when the display panel 10 falls, the distance between the first connecting member CM1 and the second connecting member CM2 can decrease, and when the display panel 10 rises, the distance between the first connecting member CM1 and the second connecting member CM2 can increase.

[0086] The drive member 50 can drive the first lifting member 41 and the second lifting member 42 to move the display panel 10 upward or downward. The drive member 50 can be connected to the first lifting member 41 and the second lifting member 42.

[0087] The drive component 50 may include a linear motor that expands or contracts to change its length.

[0088] One side of the drive member 50 can be rotatably connected to the first lifting member EM1, and the other side can be rotatably connected to the second lifting member EM2. One side and the other side of the drive member 50 can be connected to the middle portions of the first lifting member EM1 and the second lifting member EM2, respectively. The middle portion of the first lifting member EM1 can be a portion spaced apart from one end connected to the first connecting member CM1 and the other end connected to the first support member 81. The middle portion of the second lifting member EM2 can be a portion spaced apart from one end connected to the second connecting member CM2 and the other end connected to the second support member 82. In some embodiments, the distance from one side of the drive member 50 to the first connecting member CM1 can be greater than the distance from one side of the drive member 50 to the first support member 81, and the distance from the other side of the drive member 50 to the second connecting member CM2 can be greater than the distance from the other side of the drive member 50 to the second support member 82. In some embodiments, one side of the drive member 50 can be connected to a third lifting member EM3, and the other side of the drive member 50 can be connected to a fourth lifting member EM4.

[0089] The linear motor can expand or contract, causing its length to vary along a first direction DR1. The first direction DR1 can be the width direction of the display panel 10. In one embodiment, the length of the linear motor can increase when the display panel 10 rises and decrease when the display panel 10 falls.

[0090] The position of the drive member 50 can change when the display panel 10 rises or falls. The height of the drive member 50 can also change. This height can be the distance in the third direction DR3 between the support surface supporting the first lifting member 41 and the second lifting member 42 (e.g., the bottom surface of the internal space of the housing 30) and the drive member 50. In an embodiment, the drive member 50 can move upward or downward when the display panel 10 rises or falls. For example, when the display panel 10 rises, the drive member 50 can move upward, and when the display panel 10 falls, the drive member 50 can move downward.

[0091] The first linkage member 61 can be interlocked with the first lifting member 41 and the first synchronizing gear 71. In one embodiment, the first linkage member 61 can be formed of an elongated metal frame. One side of the first linkage member 61 can be rotatably connected to the first lifting member EM1, and the other side of the first linkage member 61 can be rotatably connected to the first synchronizing gear 71. In one embodiment, one side of the first linkage member 61 can be connected to the first linkage connecting member LC1 of the first lifting member EM1. In another embodiment, one side of the first linkage member 61 can be connected to the middle portion of the first rod member RD1 of the first lifting member EM1, and the first linkage connecting member LC1 can be omitted.

[0092] The second linkage member 62 can be interlocked with the second lifting member 42 and the second synchronizing gear 72. In one embodiment, the second linkage member 62 can be formed from an elongated metal frame. One side of the second linkage member 62 can be rotatably connected to the second lifting member EM2, and the other side of the second linkage member 62 can be rotatably connected to the second synchronizing gear 72. In one embodiment, one side of the second linkage member 62 can be connected to the second linkage connecting member LC2 of the second lifting member EM2. In another embodiment, one side of the second linkage member 62 can be connected to the middle portion of the second rod member RD2 of the second lifting member EM2, and the second linkage connecting member LC2 can be omitted.

[0093] When the display panel 10 rises or falls, the distance between the first linkage member 61 and the second linkage member 62 can change. In one embodiment, when the display panel 10 falls, the distance between the first linkage member 61 and the second linkage member 62 can increase, and when the display panel 10 rises, the distance between the first linkage member 61 and the second linkage member 62 can decrease.

[0094] The heights of the first linkage member 61 and the second linkage member 62 can vary when the display panel 10 rises or falls. This height can be the height above the bottom surface of the interior space of the defining housing 30, which will be described later. In one embodiment, the heights of the first linkage member 61 and the second linkage member 62 can decrease when the display panel 10 falls, and increase when the display panel 10 rises.

[0095] The first lifting member 41 and the second lifting member 42 can be interlocked by a synchronizing gear disposed between the first lifting member 41 and the second lifting member 42. In an embodiment, the synchronizing gear can be implemented as two synchronizing gears. Although for ease of explanation, the synchronizing gears cooperating with the first lifting member 41 and the second lifting member 42 are referred to as the first synchronizing gear 71 and the second synchronizing gear 72, respectively, this disclosure is not limited thereto.

[0096] The first synchronizing gear 71 is connected to the first lifting member 41 via a first connecting rod member 61. In one embodiment, the first connecting rod member 61 may be arranged to rotate about a first axis in the second direction DR2, and the other side of the first connecting rod member 61 may be connected to the upper part of the first synchronizing gear 71 relative to the first axis in the second direction DR2. In another embodiment, the first connecting rod member 61 may be connected to the lower part of the first synchronizing gear 71.

[0097] The second synchronizing gear 72 can be connected to the second lifting member 42 via the second connecting rod member 62. In one embodiment, the second connecting rod member 62 can be arranged to rotate about a second axis in the second direction DR2, and the other side of the second connecting rod member 62 can be connected to the upper part of the second synchronizing gear 72 relative to the second axis in the second direction DR2. In another embodiment, the second connecting rod member 62 can be connected to the lower part of the second synchronizing gear 72. The second synchronizing gear 72 can be configured to directly engage with the first synchronizing gear 71. Therefore, the torque of the first lifting member EM1 can be transmitted to the second lifting member EM2, so that the rotation angle of the first lifting member 41 and the second lifting member 42 can be adjusted in an interlocking manner.

[0098] The first synchronizing gear 71 and the second synchronizing gear 72 can rotate in relation to changes in the length of the first lifting member 41 and the second lifting member 42. In an embodiment, the first synchronizing gear 71 can rotate in relation to the rotation of the first lifting member EM1, and the second synchronizing gear 72 can rotate in relation to the rotation of the second lifting member EM2. When the display panel 10 rises or falls, the first synchronizing gear 71 and the second synchronizing gear 72 can rotate in directions different from the rotation directions of the first lifting member EM1 and the second lifting member EM2. For example, when the display panel 10 falls, the first lifting member EM1 and the second synchronizing gear 72 can rotate counterclockwise, and the second lifting member EM2 and the first synchronizing gear 71 can rotate clockwise. When the display panel 10 rises, the first lifting member EM1 and the second synchronizing gear 72 can rotate clockwise, and the second lifting member EM2 and the first synchronizing gear 71 can rotate counterclockwise. In an embodiment, when the display panel 10 rises or falls, the first synchronizing gear 71 and the second synchronizing gear 72 can rotate in the same directions as the rotation directions of the first lifting member EM1 and the second lifting member EM2.

[0099] The first support member 81 is rotatably connected to the lower end of the first lifting member 41 to support the lower end of the first lifting member 41. The first support member 81 can also be rotatably connected to the other side of the first lifting member EM1. The first support member 81 can also be rotatably connected to the portion where the first rod member RD1 and the first connecting rod member LC1 intersect.

[0100] The second support member 82 is rotatably connected to the lower end of the second lifting member 42 to support the lower end of the second lifting member 42. The second support member 82 can also be rotatably connected to the other side of the second lifting member EM2. The second support member 82 can also be rotatably connected to the portion where the second rod member RD2 and the second connecting rod member LC2 intersect.

[0101] In one embodiment, the first support member 81 and the second support member 82 can be fixed to the bottom surface of the interior space of the housing 30 and are formed of column-shaped members, the width of which decreases upward as the width increases, but is not limited thereto.

[0102] The first stop 91 can be connected to the first link member 61 and can protrude in a direction intersecting the length direction of the first link member 61. The first stop 91 can move up and down together with the first link member 61. The first stop 91 can limit the maximum descent distance of the first link member 61 and the maximum descent distance of one side of the display panel 10. In one embodiment, at least a portion of the first stop 91 can protrude downward such that when the display panel 10 is fully lowered, the bottom end of the first stop 91 contacts the bottom surface of the interior space of the housing 30. In another embodiment, at least a portion of the first stop 91 can protrude upward such that when the display panel 10 is fully lowered, the top end of the first stop 91 contacts the drive member 50 and / or the third lifting member EM3.

[0103] The second stop 92 can be connected to the second linkage member 62 and can protrude in a direction intersecting the length direction of the second linkage member 62. The second stop 92 can move upward or downward together with the second linkage member 62. The second stop 92 can limit the maximum descent distance of the second linkage member 62 and the maximum descent distance of the other side of the display panel 10. In one embodiment, at least a portion of the second stop 92 can protrude downward such that when the display panel 10 is fully lowered, the bottom end of the second stop 92 contacts the bottom surface of the interior space of the housing 30. In another embodiment, at least a portion of the second stop 92 can protrude upward such that when the display panel 10 is fully lowered, the top end of the second stop 92 contacts the drive member 50 and / or the fourth lifting member EM4.

[0104] In the embodiments, the first lifting member 41, the first connecting rod member 61 and the first synchronous gear 71 may be structurally symmetrical with the second lifting member 42, the second connecting rod member 62 and the second synchronous gear 72, respectively, but this disclosure is not limited thereto.

[0105] In the following text, see references Figures 4 to 9 The detailed operation of display device 1 is described.

[0106] Figure 4 This is a front view of a display device with the display panel pulled out according to an embodiment. Figure 5 This is a front view of the display panel being pulled in according to the embodiment. Figure 6 yes Figure 4 A magnified view of part 'A'. Figure 7 yes Figure 4 A magnified view of part 'B'. Figure 8 yes Figure 5 A magnified view of part 'C'. Figure 9 yes Figure 5 A magnified view of part 'D'.

[0107] Although stating that the display panel 10 is rising or falling may indicate that the display panel 10 is fully rising or falling, this disclosure is not limited thereto. If the display panel 10 is rising or falling, this may mean that the display panel 10 is not fully rising or falling, or that the display panel 10 is rising or falling. Furthermore, if the display panel 10 is fully rising or falling, this may mean that the first lifting member 41 and the second lifting member 42 are fully extended or folded, but this disclosure is not limited thereto.

[0108] Reference Figure 4 and Figure 5 The display panel 10 can be raised or lowered in a third direction DR3 via the first lifting member 41 and the second lifting member 42. In an embodiment, when the display panel 10 is raised through the opening on the top of the housing 30, the display panel 10 can be pulled out from the internal space of the housing 30, and when the display panel 10 is lowered, the display panel 10 can be pulled into the internal space of the housing 30.

[0109] When the display panel 10 rises or falls, the lengths of the first lifting member 41 and the second lifting member 42 in the third direction DR3 can change. In this embodiment, when the display panel 10 rises, the lengths of the first lifting member 41 and the second lifting member 42 in the third direction DR3 can be extended, and when the display panel 10 falls, the lengths of the first lifting member 41 and the second lifting member 42 in the third direction DR3 can be shortened. The length in the third direction DR3 can be the height.

[0110] When the display panel 10 rises or falls, the first lifting member 41 and the second lifting member 42 can be folded or unfolded to change the length on the third-direction DR3. In an embodiment, when the display panel 10 is fully lowered and / or when the display panel 10 is rising or falling, the first lifting member 41 and the second lifting member 42 can be folded about the first connecting member CM1 and the second connecting member CM2 respectively to form an 'L' shape, and when the display panel 10 is fully raised, the first lifting member 41 and the second lifting member 42 can be unfolded respectively to form an 'I' shape.

[0111] When the display panel 10 rises or falls, the first lifting member EM1 and the third lifting member EM3 can rotate around the first connecting member CM1, and the second lifting member EM2 and the fourth lifting member EM4 can rotate around the second connecting member CM2. When the display panel 10 falls, the first lifting member EM1 and the fourth lifting member EM4 can rotate in a first rotation direction, and the second lifting member EM2 and the third lifting member EM3 can rotate in a second rotation direction different from the first rotation direction. When the display panel 10 rises, the first lifting member EM1 and the fourth lifting member EM4 can rotate in the second rotation direction, and the second lifting member EM2 and the third lifting member EM3 can rotate in the first rotation direction. In this embodiment, the first rotation direction can be counterclockwise, and the second rotation direction can be clockwise.

[0112] The speed at which one side of the display panel 10 rises or falls and the speed at which the other side of the display panel 10 rises or falls can be equal or different. The speed at which one side of the display panel 10 rises or falls and the speed at which the other side of the display panel 10 rises or falls can be, respectively, the speed at which the length of the first lifting member 41 changes in the third direction DR3 and the speed at which the length of the second lifting member 42 changes in the third direction DR3. In this embodiment, the speed at which one side of the display panel 10 rises or falls and the speed at which the other side of the display panel 10 rises or falls can be equal. When the display panel 10 rises or falls, the top side of the display panel 10 can remain horizontal.

[0113] The speed at which one side of the display panel 10 rises or falls, and the speed at which the other side of the display panel 10 rises or falls, can be adjusted by using the first synchronization gear 71 and the second synchronization gear 72. The first synchronization gear 71 and the second synchronization gear 72 can interlock the speed at which the first lifting member 41 moves up or down and the speed at which the second lifting member 42 moves up or down, so that the ratio of the speed at which the second lifting member 42 moves up or down to the speed at which the first lifting member 41 moves up or down (or the ratio of the speed at which the first lifting member 41 moves up or down to the speed at which the second lifting member 42 moves up or down) is adjusted to a specific value.

[0114] In the following description, height can be, but is not limited to, the distance on the third-direction DR3 from the support surface supporting the first lifting member 41 and the second lifting member 42 (e.g., the bottom surface of the interior space of the housing 30).

[0115] Reference Figure 4 , Figure 6 and Figure 7 When the display panel 10 is raised, the drive member 50 can be extended to its maximum extent. The drive member 50 can be positioned at its maximum height.

[0116] When the display panel 10 is raised, the angle between the first lifting member EM1 and the third lifting member EM3, and the angle between the second lifting member EM2 and the fourth lifting member EM4, can each be approximately 180 degrees. When the display panel 10 is raised, the first lifting member 41 and the second lifting member 42 can have a straight line shape extending in the third direction DR3.

[0117] With the first lifting member 41 and the second lifting member 42 folded, the first link member 61 and the second link member 62 can be positioned at their maximum height. When the first lifting member 41 is fully extended, one side of the first link member 61 can be connected to the end of the first link connecting member LC1 of the first lifting member EM1 at its maximum height. The end of the first link connecting member LC1 can be a portion connected to the second connecting member BT2, which will be described later. The first connecting member BT1 can be, for example, a bolt. The other side of the first link member 61 can be connected to the upper part of the first synchronizing gear 71.

[0118] When the first lifting member 41 is fully extended, the upper part of the first synchronizing gear 71 can be a point where the first synchronizing gear 71 is at its maximum height. When the second lifting member 42 is fully extended, one side of the second link member 62 can be connected to the end of the second link connecting member LC2 of the second lifting member EM2 at its maximum height, and the other side of the second link member 62 can be connected to the upper part of the second synchronizing gear 72. Although not shown in the figure, similar to the end of the first link connecting member LC1, the end of the second link connecting member LC2 can be a part connected to a third connecting member (not shown), which rotatably connects the second link connecting member LC2 to the second link member 62.

[0119] When the second lifting member 42 is fully extended, the upper part of the second synchronous gear 72 can be a point where the second synchronous gear 72 is at its maximum height. When the display panel 10 is fully raised, the points where the first link member 61 and the first link connecting member LC1 are connected, the points where the second link member 62 and the second link connecting member LC2 are connected, the points where the first link member 61 and the first synchronous gear 71 are connected, and the points where the second link member 62 and the second synchronous gear 72 are connected can each be at their maximum height. In this embodiment, the height of the points where the first link member 61 and the first link connecting member LC1 are connected, and the height of the points where the second link member 62 and the second link connecting member LC2 are connected, can be lower than the heights of the points where the first link member 61 and the first synchronous gear 71 are connected, and the heights of the points where the second link member 62 and the second synchronous gear 72 are connected, respectively.

[0120] When the display panel 10 is raised, the first stop 91 and the second stop 92 can each be spaced apart from the bottom surface of the internal space of the housing 30 by a first distance D1. The first distance D1 can be a distance in the third direction DR3.

[0121] Reference Figure 5 , Figure 8 and Figure 9 As the display panel 10 descends, the drive member 50 can shorten its length in the first direction DR1. The first rod member RD1, connected to one side of the linear motor's first lifting member EM1, can rotate in the first rotational direction, and the second rod member RD2, connected to the other side of the linear motor's second lifting member EM2, can rotate in the second rotational direction. Therefore, the first connecting rod member LC1 connected to the first rod member RD1 and the second connecting rod member LC2 connected to the second rod member RD2 can rotate in the first and second rotational directions, respectively. In this embodiment, the first rotational direction can be counterclockwise, and the second rotational direction can be clockwise. When the display panel 10 descends, the height of the drive member 50 can be reduced.

[0122] When the display panel 10 is lowered, the drive member 50 can be shortened. In this embodiment, the drive member 50 can be shortened to its maximum extent when the display panel 10 is lowered to its maximum extent or when the first lifting member 41 and the second lifting member 42 are completely folded. The drive member 50 can be positioned at its minimum height. When the first lifting member 41 and the second lifting member 42 are completely folded, the first lifting member 41 and the second lifting member 42 can be prevented from being folded further by the first stop 91 and the second stop 92.

[0123] When the display panel 10 is lowered, the angle between the first lifting member EM1 and the third lifting member EM3, and the angle between the second lifting member EM2 and the fourth lifting member EM4, can each be within the range of approximately 0 degrees to approximately 180 degrees. In an embodiment, when the display panel 10 is fully lowered, the angle between the first lifting member EM1 and the third lifting member EM3, and the angle between the second lifting member EM2 and the fourth lifting member EM4, can each be within the range of approximately 0 degrees to approximately 45 degrees.

[0124] When the display panel 10 descends, the first linkage connecting member LC1 can rotate in a first rotational direction about the portion where the first lifting member EM1 and the first support member 81 are connected. The portion where the first lifting member EM1 and the first support member 81 are connected to a first connecting member BT1 that connects the first lifting member EM1 to the first support member 81. The first rotational direction can be a direction away from the first synchronizing gear 71. The first linkage member 61 can be pulled away from the first synchronizing gear 71 via the first linkage connecting member LC1. Similarly, the second linkage member 62 can be pulled away from the second synchronizing gear 72 via the second linkage connecting member LC2.

[0125] The display device 1 may further include a second connecting member BT2 rotatably connected to the first connecting member 61 via the first connecting member LC1. In an embodiment, the second connecting member BT2 may be a bolt. The second connecting member BT2 may be integrally connected to the first connecting member LC1 to rotate about the portion where the first lifting member EM1 and the first support member 81 are connected (e.g., the portion connected to the first connecting member BT1) while the display panel 10 is lowered. In an embodiment, the first support member 81 may further include a first guide groove 81_G formed to correspond to the rotation path of the second connecting member BT2, and the second connecting member BT2 may be guided by the first guide groove 81_G that defines the rotation path when the display panel 10 is raised or lowered. Although not shown in the figures, the display device 1 may further include a fourth connecting member rotatably connected to the second connecting member 62 via the second connecting member LC2, and the fourth connecting member may be guided by a second guide groove formed on the second support member 82 to define the rotation path of the fourth connecting member.

[0126] When the display panel 10 descends, the first synchronizing gear 71 can rotate via the first connecting member 61. The first synchronizing gear 71 can rotate in a direction different from or the same as the rotation direction of the first connecting member LC1. In one embodiment, the first connecting member LC1 can rotate in a first rotation direction, and the first synchronizing gear 71 can rotate in a second rotation direction. Similarly, the second synchronizing gear 72 can rotate via the second connecting member 62 in a direction opposite to the rotation direction of the first synchronizing gear 71. The first synchronizing gear 71 and the second synchronizing gear 72 engage, such that the rotation ratio of the first synchronizing gear 71 and the second synchronizing gear 72 can be adjusted to a predetermined value.

[0127] When the display panel 10 descends, the height of the first linkage member 61 and the second linkage member 62 can be reduced. For example, as Figure 8 and Figure 9As shown, when the display panel 10 descends, the first linkage connecting member LC1 and the first synchronous gear 71 can each rotate in a direction such that the height of the portion where the first synchronous gear 71 and the first linkage member 61 are connected, as well as the height of the portion where the first linkage connecting member LC1 and the first linkage member 61 are connected, decreases, and thus the height of the first linkage member 61 can be reduced. Similarly, the height of the portion where the second synchronous gear 72 and the second linkage member 62 are connected, as well as the height of the portion where the second linkage connecting member LC2 and the second linkage member 62 are connected, can be reduced, and thus the height of the second linkage member 62 can be reduced.

[0128] When the display panel 10 descends, the height of the first stop 91 and the second stop 92 can be reduced. When the display panel 10 descends to its maximum, the lower end of the first stop 91 can contact the housing 30 to limit the maximum descent distance or minimum height of one side of the display panel 10. Similarly, when the display panel 10 descends to its maximum, the lower end of the second stop 92 can contact the housing 30 to limit the maximum descent distance or minimum height of the other side of the display panel 10.

[0129] Reference Figure 6 and Figure 8 The first synchronous gear 71 and the second synchronous gear 72 may each include a first position mark MK1 and a second position mark MK2.

[0130] The first position marker MK1 and the second position marker MK2 can respectively indicate whether the first synchronizing gear 71 and the second synchronizing gear 72 are rotating. The first position marker MK1 and the second position marker MK2 can respectively indicate the rotation angle of the first synchronizing gear 71 and the second synchronizing gear 72. In an embodiment, the first position marker MK1 and the second position marker MK2 can be disposed on one side surface and / or the other side surface where gear teeth are arranged between them. The first position marker MK1 and the second position marker MK2 can be respectively disposed in the region adjacent to the edge of the first synchronizing gear 71 and the second synchronizing gear 72.

[0131] When the display panel 10 rises, the distance between the first position marker MK1 and the second position marker MK2 can decrease. When the display panel 10 rises to its maximum height, the distance between the first position marker MK1 and the second position marker MK2 can be minimized. In some embodiments, the first position marker MK1 and the second position marker MK2 can contact each other. The first position marker MK1 and the second position marker MK2 can form a straight line.

[0132] When the display panel 10 is lowered, the distance between the first position marker MK1 and the second position marker MK2 can be increased. When the display panel 10 is fully lowered, the distance between the first position marker MK1 and the second position marker MK2 can be maximized.

[0133] Figure 10A A first synchronizing gear according to an embodiment is shown, and Figure 10B A first synchronizing gear according to another embodiment is shown.

[0134] Figure 10A This is a perspective view of the first synchronizing gear 71 according to the embodiment. Figure 10B This is a perspective view of the first synchronizing gear 71a according to another embodiment.

[0135] In the implementation, the second synchronizing gear 72 is substantially the same as or similar to the first synchronizing gear 71, and therefore the following description is primarily directed at the first synchronizing gear 71.

[0136] Reference Figure 10A The first synchronizing gear 71 may have a radius. The radius of the first synchronizing gear 71 may be equal to or greater than the protruding length of the first connecting rod connecting member LC1.

[0137] The first synchronizing gear 71 may include gear teeth arranged circumferentially around an outer circumferential surface to protrude from it. The lifting speed of the first lifting member 41 may be determined by the number of teeth in the first synchronizing gear 71. The ends of the gear teeth may extend parallel to the thickness direction and / or the axis of rotation of the first synchronizing gear 71. For example, the first synchronizing gear 71 may be a spur gear.

[0138] Reference Figure 10B The ends of the teeth of the first synchronizing gear 71a may be formed to be inclined relative to the thickness direction and / or the axis of rotation of the first synchronizing gear 71a. For example, the first synchronizing gear 71a may be a helical gear. For example, the second synchronizing gear may be a helical gear. This can reduce the backlash between the first synchronizing gear 71a and the second synchronizing gear.

[0139] Figure 11A This is a view showing the lifting speed of the display panel according to the gear ratio between the first and second synchronizing gears, and Figure 11B This is a view showing the lifting speed of the display panel based on the adjusted gear ratio between the first and second synchronizing gears.

[0140] Figure 11A This diagram shows the case where the gear ratio of the first synchronizing gear 71 and the second synchronizing gear 72 is 1:1. Figure 11BThis diagram illustrates the case where the gear ratio of the first synchronizing gear 71 and the second synchronizing gear 72 is not 1:1.

[0141] Reference Figure 11A and Figure 11B The lifting speed of one side of the display panel 10 and the lifting speed of the other side of the display panel 10 can be adjusted by the gear ratio of the first synchronous gear 71 and the second synchronous gear 72 as described above.

[0142] Reference Figure 11A When the gear ratio between the first synchronous gear 71 and the second synchronous gear 72 is 1:1, the lifting speed of one side and the other side of the display panel 10 can be adjusted equally. When the display panel 10 is rising or falling, the lifting speed of one side of the display panel 10 can be equal to the lifting speed of the other side. When the display panel 10 is rising or falling, the top side of the display panel 10 can remain horizontal. However, the gear ratio of the first synchronous gear 71 and the second synchronous gear 72 can vary depending on the length and / or position of the components constituting the first lifting member 41 and the second lifting member 42.

[0143] Reference Figure 11B When the gear ratio between the first synchronous gear 71 and the second synchronous gear 72 is not 1:1, the lifting and lowering speeds of one side and the other side of the display panel 10 can be adjusted differently. In this embodiment, the number of teeth on the first synchronous gear 71 may be different from the number of teeth on the second synchronous gear 72. One side of the display panel 10 may rise or fall faster or slower than the other side of the display panel 10. If necessary, the lifting and lowering speeds of one side and the other side of the display panel 10 can be adjusted differently by changing the gear ratio of the first synchronous gear 71 and the second synchronous gear 72.

[0144] In concluding this detailed description, those skilled in the art will understand that many variations and modifications can be made to the embodiments without substantially departing from the principles of the invention. Therefore, the disclosed embodiments of the invention are used only in a general and descriptive sense and not for limiting purposes.

Claims

1. A display device, including: Display panel; A first lifting component is connected to one side of the display panel and includes a first lifting component that rotates in a first rotation direction; The second lifting component is connected to the other side of the display panel and includes a second lifting component that rotates in a second rotation direction different from the first rotation direction; A drive component is connected to the first lifting component and the second lifting component, the drive component rotating the first lifting component and the second lifting component; The first link member has one side connected to the first lifting member; The second link member has one side connected to the second lifting member; A first synchronizing gear is connected to the other side of the first connecting rod member, and the first synchronizing gear rotates as the first lifting member rotates; as well as The second synchronizing gear engages with the first synchronizing gear and is connected to the other side of the second connecting rod member. The second synchronizing gear rotates as the second lifting member rotates.

2. The display device according to claim 1, wherein, The driving component includes a linear motor that expands or contracts in the width direction of the display panel.

3. The display device according to claim 2, wherein, One side of the driving member is rotatably connected to the first lifting member, and The other side of the drive member is rotatably connected to the second lifting member.

4. The display device according to claim 3, wherein, One side of the driving member is connected to the middle portion of the first lifting member, and The other side of the driving member is connected to the middle portion of the second lifting member. Specifically, when the display panel rises, the driving member expands to increase the distance between the first and second raising members, and when the display panel falls, the driving member shortens to decrease the distance between the first and second raising members. The driving member moves upward when the display panel rises, and moves downward when the display panel falls.

5. The display device according to claim 1, further comprising: The third lifting component is connected to the upper part of the display panel; A fourth lifting member is spaced apart from the third lifting member and connected to another upper part of the display panel; A first connecting member connects one side of the first lifting member to one side of the third lifting member; The second connecting member connects one side of the second lifting member to one side of the fourth lifting member; as well as A panel support member that covers at least a portion of the surface of the display panel and includes multiple sections. The other side of the third lifting member and the other side of the fourth lifting member are rotatably connected to the panel support member.

6. The display device according to claim 1, wherein, The first lifting component changes its height by rotating the first raising component. The second lifting member changes its height by rotating the second raising member, and The ratio of the height change of the second lifting component to the height change of the first lifting component is determined by the gear ratio of the first synchronous gear and the second synchronous gear.

7. The display device according to claim 1, wherein, The first lifting member includes a first rod member and a first connecting rod member projecting toward the first synchronizing gear, and The second lifting member includes a second rod member and a second connecting rod member protruding toward the second synchronizing gear.

8. The display device according to claim 7, further comprising: The first supporting member supports the first lifting member; The second support member supports the second lifting member; The first connecting member rotatably connects the first link connecting member to the first link member; as well as The second connecting member rotatably connects the second link connecting member to the second link member.

9. The display device according to claim 8, further comprising: The first stop protrudes in a direction intersecting the length direction of the first link member and limits the maximum descent distance of the first link member; The second stop protrudes in a direction intersecting the length direction of the second link member and limits the maximum descent distance of the second link member; The first stop surface is disposed below the first stop member; as well as The second stop surface is located below the second stop member. When the display panel is lowered to its maximum extent, the first stop member contacts the first stop surface, and the second stop member contacts the second stop surface.

10. The display device according to claim 1, wherein, The first synchronizing gear and the second synchronizing gear each include a position mark, which identifies whether the display panel is raised to its maximum height.

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