Liftable display device

Abstract

A liftable display device is disclosed, comprising a first supporting unit, a second supporting unit, a roll-retracting device, a distance-adjusting device, a screen, and an angle-adjusting device. The first supporting unit extends along a first direction. The second supporting unit extends along the first direction and is disposed below the first supporting unit. The roll-retracting device is disposed on one of the first supporting unit or the second supporting unit. A first side of the screen is fixed to one of the first support unit and the second support unit without the roll-retracting device, and the second side is fixed to the roll-retracting device in a manner that can be axially retracted along the first direction. The distance adjusting device is disposed between the first supporting unit and the second supporting unit, and is configured to adjust the distance between the two. The angle adjustment device is configured to adjust a rotation angle of the second support unit.

Description

[Technical Field]

[0001] This invention relates to a height-adjustable display device. [Previous Technology]

[0002] Monitors are among the most commonly used information products today. Besides being an essential output device for personal computers, they are also needed as a medium for visual image output for receiving television programs and engaging in home entertainment and information reception, such as video games. Flexible displays, in particular, are receiving increasing attention, especially those with height-adjustable display devices, and can be flexibly applied to commercial, artistic, and other exhibition settings.

[0003] However, conventional display devices with lifting functions have complex lifting mechanisms and high failure rates. They also suffer from insufficient reverse support, leading to insufficient support for flexible displays and a tendency to curl. Furthermore, the tilt angle is singular and not adjustable. Therefore, there is room for improvement. [Summary of the Invention]

[0004] The purpose of this invention is to provide a height-adjustable display device that can improve durability.

[0005] Another object of the present invention is to provide a height-adjustable display device with an adjustable tilt angle, which has better ease of use.

[0006] The height-adjustable display device of the present invention includes a first support unit, a second support unit, a winding device, a distance adjustment device, a screen, and an angle adjustment device. The first support unit extends along a first direction. The second support unit extends along the first direction and is arranged side by side with the first support unit. The winding device is disposed on either the first support unit or the second support unit. The screen has a first side and a second side located on opposite sides and extending along the first direction, respectively. The first side is connected to one of the first and second support units that is not provided with the winding device, and the second side is connected to the winding device in a manner that allows it to be wound axially in the first direction. The distance adjustment device is disposed between the first support unit and the second support unit, wherein one end of the distance adjustment device is retractable relative to the other end in a second direction intersecting the first direction to adjust the distance between the first support unit and the second support unit. The angle adjustment device is connected to the second support unit to adjust the rotation angle of the second support unit about the first direction.

[0007] In one embodiment of the present invention, the liftable display device further includes a circuit board disposed in the second support unit and electrically connected to the screen.

[0008] In one embodiment of the present invention, the winding device is disposed within the first support unit.

[0009] In one embodiment of the present invention, the winding device includes a coil spring.

[0010] In one embodiment of the present invention, the distance adjustment device includes a support plate, a guide rail, and a stepper motor. One end of the support plate is connected to a first support unit, and the other end extends toward a second support unit and is movable relative to the second support unit. The guide rail extends along a second direction and is disposed on the other side of the support plate opposite to the screen. The stepper motor is connected to the second support unit and is configured to move the guide rail along the second direction.

[0011] In one embodiment of the present invention, the guide rail includes a rack, and the stepper motor includes a gear that engages with the rack.

[0012] In one embodiment of the present invention, the distance adjustment device further includes a limiting strip and a limiting groove. The limiting strip extends along a second direction and is disposed on one side of the guide rail of the support plate. The limiting groove is connected to the second support unit and extends along the second direction, and the limiting strip can move in the limiting groove.

[0013] In one embodiment of the present invention, the limiting strip and the limiting groove are arranged in pairs and are located on both sides of the guide rail respectively.

[0014] In one embodiment of the present invention, the angle adjustment device includes a damping shaft.

[0015] In one embodiment of the present invention, the angle adjustment device includes a fixing member, a turntable, and a pin. The fixing member includes a limiting hole, and the second support unit is rotatable relative to the fixing member in a first direction. The turntable is disposed on the second support unit and includes a plurality of positioning holes. The pin can pass through one of the plurality of positioning holes and the limiting hole simultaneously, thereby restricting the rotation of the second support unit relative to the fixing member.

Implementation Method

[0016] The following describes the implementation of the connection component disclosed in this invention through specific embodiments and accompanying drawings. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. However, the following disclosure is not intended to limit the scope of protection of this invention. Without departing from the spirit of the invention, those skilled in the art can implement this invention in other different embodiments based on different viewpoints and applications. In the drawings, the thickness of layers, films, panels, regions, etc., is enlarged for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or an intermediate element may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate element is present. As used herein, "connection" can refer to physical and / or electrical connection. Furthermore, "electrical connection" or "coupling" can mean that other elements exist between two elements.

[0017] It should be understood that although the terms "first," "second," "third," etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, the "first element," "component," "region," "layer," or "part" discussed below may be referred to as a second element, component, region, layer, or part without departing from the teachings of this document.

[0018] Furthermore, relative terms such as “down” or “bottom” and “up” or “top” may be used herein to describe the relationship between one element and another element, as shown in the figures. It should be understood that relative terms are intended to include different orientations of the device other than those shown in the figures. For example, if a device in a figure is flipped, an element described as being “down” to another element will be oriented “up” to another element. Thus, the exemplary term “down” can include both “down” and “up” orientations, depending on the specific orientation of the figure. Similarly, if a device in a figure is flipped, an element described as being “below” or “under” another element will be oriented “above” the other element. Thus, the exemplary term “below” or “under” can include both “up” and “down” orientations.

[0019] As used herein, “about,” “approximately,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement in question and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, as used herein, “about,” “approximately,” or “substantially” may be chosen based on optical, etched, or other properties to select a more acceptable range of deviations or standard deviations, and may not apply to all properties without using a single standard deviation.

[0020] As shown in the embodiments of FIG1A and 1B, the liftable display device 800 of the present invention is used in conjunction with the base 900. In one embodiment, the liftable display device 800 is embedded in the top surface 910 of the base 900 and is partially housed under the top surface 910 of the base 900.

[0021] As shown in the embodiment of FIG2, for ease of explanation, some components of the height-adjustable display device 800 and the base 900 in FIG1A are not shown to expose their internal structure. The height-adjustable display device 800 includes a first support unit 100, a second support unit 200, a winding device 300, a screen 400, a distance adjustment device 500, and an angle adjustment device 600. The first support unit 100 extends along a first direction 710, and the second support unit 200 extends along the first direction 710 and is arranged side-by-side with the first support unit 100. In this embodiment, the first direction 710 is horizontal. In other words, the first support unit 100 and the second support unit 200 are located at upper and lower relative positions, respectively, and extend horizontally.

[0022] As shown in the embodiment of FIG2, a winding device 300 is disposed within a first support unit 100. A screen 400 has a first side 410 (see FIG4A) located on opposite sides and extending along a first direction 710, and a second side 420, wherein the first side 410 is fixed to the second support unit 200, and the second side 420 relative to the first side 410 is connected to the winding device 300 in a manner that allows it to be wound axially along the first direction 710. A distance adjustment device 500 is disposed between the first support unit 100 and the second support unit 200, wherein the end 511 of the distance adjustment device 500 is retractable relative to the end 512 in a second direction 720 intersecting the first direction 710 to adjust the distance D between the first support unit 100 and the second support unit 200. An angle adjustment device 600 is connected to the second support unit 200 to adjust the rotation angle of the second support unit 200 about the first direction 710.

[0023] More specifically, as shown in the embodiment of FIG3, where FIG3 is an enlarged view of region A in FIG2. The first support unit 100 is an elongated shell extending along a first direction 710, with an opening 110 extending along the first direction 710 and facing the second support unit 200 at its lower edge. Thus, the other side of the screen 400 relative to the second side 420 can pass through the opening 110 into the first support unit 100 and connect to a retracting device 300 disposed within the first support unit 100. Preferably, the screen 400 is a flexible display with flexibility, and the retracting device 300 includes a coil spring, so that the screen 400 and the side connected to it can be retracted and housed in the first support unit 100 by axial rotation in the first direction 710. In different embodiments, the retracting device 300 may be disposed within the second support unit 200, while one side of the screen 400 is correspondingly fixed to the first support unit 100, thereby reducing the volume of the first support unit 100.

[0024] As shown in the embodiment of FIG3, the distance adjustment device 500 includes a support plate 510, a guide rail 520, and a stepper motor 530. One end (i.e., end 511) of the support plate 510 is connected to the first support unit 100, and the other end (i.e., end 512) extends toward the second support unit 200 and is movable relative to the second support unit 200. The guide rail 520 extends along a second direction 720 on the other side of the support plate 510 opposite to the screen 400, and the second direction 720 is perpendicular to the first direction 710. The stepper motor 530 is connected to the second support unit 200 and is configured to move the guide rail 520 along the second direction 720.

[0025] Further, as shown in the embodiment of FIG3, the second support unit 200 includes a cutout portion 250 of just the size for the support plate 510 and the guide rail 520 to pass through, so that the end portion 512 extending toward the second support unit 200 can move relative to the second support unit 200. The distance adjustment device 500 may further include a limiting strip 541 and a limiting groove 542. The limiting strip 541 extends along the second direction 720 and is disposed on one side of the guide rail 520 of the support plate 510. The limiting groove 542 is connected to the second support unit 200 and extends along the second direction 720, and the limiting strip 541 can move in the limiting groove 542. The limiting strip 541 and the limiting groove 542 are arranged in pairs and are respectively located on both sides of the guide rail 520. In this way, the support plate 510 can be substantially supported by the second support unit 200 and can move stably along the second direction 720, reducing the occurrence of offset.

[0026] Furthermore, the guide rail 520 is, for example, a rack, and the stepper motor 530 includes a gear 531 that meshes with the rack. Thus, when the gear 531 of the stepper motor 530 rotates, it can drive the guide rail 520 to move along the second direction 720 to adjust the distance D between the first support unit 100 and the second support unit 200, thereby changing the unfolded range of the screen 400, that is, changing the size of the screen 400 when it opens. In this embodiment, the winding device 300 is disposed within the first support unit 100, and for example, the circuit board 430 for driving the screen 400 is disposed within the second support unit 200 and electrically connected to the second side 420 of the screen 400. Since the second side 420 of the screen 400 is connected to the second support unit 200, meaning there is less displacement when the screen 400 is unfolded, the possibility of damage to the circuit board 430 electrically connected to it can be reduced.

[0027] As described above, in the embodiment shown in FIG4A, when the distance adjustment device 500 adjusts to increase the distance between the first support unit 100 and the second support unit 200, the other side of the screen 400 relative to the second support unit 200 is pulled out of the first support unit 100, and the size of the screen 400 increases. In the embodiment shown in FIG4B, when the distance adjustment device 500 adjusts to decrease the distance between the first support unit 100 and the second support unit 200, the other side of the screen 400 relative to the second support unit 200 is wound into the first support unit 100 by the winding device 300, and the size of the screen 400 decreases. The distance adjustment device 500 not only has the function of adjusting the distance between the first support unit 100 and the second support unit 200, but also provides support for the first support unit 100, thereby improving durability. Furthermore, the outer contours of the first support unit 100 and the second support unit 200 can correspond to each other; for example, the outer contour of the first support unit 100 is a cylindrical arc surface, and the second support unit 200 has a corresponding arc-shaped concave surface. This allows the first support unit 100 and the second support unit 200 to fit together when the distance between them is reduced, thus reducing their size and improving their aesthetics.

[0028] On the other hand, in the embodiment shown in FIG4A, the angle adjustment device 600 includes a damping pivot. Therefore, in the embodiment shown in FIG4B, the second support unit 200 can be rotated about a first direction 710 and then remain in that position. In other words, the angle adjustment device 600 can adjust the rotation angle of the second support unit 200 about the first direction 710, thereby changing the tilt angle of the screen 400, providing better ease of use. In different embodiments, based on considerations such as manufacturing cost, durability, and ease of operation, the angle adjustment device 600 can have different configurations, for example, including a combination of components such as a fixing member, a turntable, and a pin. The fixing member includes a limiting hole, and the second support unit can rotate relative to the fixing member about a first direction. The turntable is disposed on the second support unit and includes a plurality of positioning holes. The pin can pass through one of the plurality of positioning holes and the limiting hole simultaneously, thereby restricting the rotation of the second support unit relative to the fixing member.

[0029] The present invention has been described by the above-described related embodiments; however, the above embodiments are merely examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent settings that fall within the spirit and scope of the claims are all included within the scope of the present invention. [Simplified Explanation of the Diagram]

[0030] Figures 1A and 1B are schematic diagrams of embodiments of the liftable display device of the present invention.

[0031] Figure 2 is a schematic diagram of the components shown in Figure 1A.

[0032] Figure 3 is a partial enlarged view of Figure 2.

[0033] Figure 4A is a schematic diagram of an embodiment of the screen opening in the liftable display device of the present invention.

[0034] Figure 4B is a schematic diagram of an embodiment of the screen retraction in the liftable display device of the present invention.

[0035] Figure 5 is a schematic diagram of an embodiment of the tilt-adjustable display device of the present invention.

Claims

1. A height-adjustable display device, comprising: a first support unit extending along a first direction; a second support unit extending along the first direction and disposed parallel to the first support unit; a winding device disposed on one of the first support unit or the second support unit; a screen having a first side and a second side located on opposite sides and extending along the first direction, the first side being fixed to the first support unit and the second support unit without the winding device, the second side being connected to the winding device in a manner that allows it to be wound axially along the first direction; and a distance adjustment device disposed between the first support unit and the second support unit, wherein... One end of the distance adjustment device is retractable relative to the other end in a second direction intersecting the first direction to adjust the distance between the first support unit and the second support unit. The distance adjustment device includes: a support plate, one end of which is connected to the first support unit and the other end of which extends toward the second support unit and is movable relative to the second support unit; a stepper motor connected to the second support unit and configured to move the support plate along the second direction; and an angle adjustment device connected to the second support unit to adjust the rotation angle of the second support unit about the first direction as its axis.

2. The liftable display device as claimed in claim 1 further includes a circuit board disposed within the second support unit and electrically connected to the screen.

3. The liftable display device as claimed in claim 1, wherein the winding device is disposed within the first support unit.

4. The liftable display device as claimed in claim 1, wherein the retraction device includes a coil spring.

5. The height-adjustable display device as claimed in claim 1, wherein the distance adjustment device further comprises: a guide rail extending along the second direction on the other side of the support plate opposite to the screen, the second direction being perpendicular to the first direction, and the stepper motor being configured to move the guide rail along the second direction, thereby driving the support plate to move along the second direction.

6. The height-adjustable display device as claimed in claim 5, wherein the guide rail includes a rack and the stepper motor includes a gear that engages with the rack.

7. The height-adjustable display device as claimed in claim 5, wherein the distance adjustment device further comprises: a limiting bar extending along the second direction and disposed on one side of the guide rail of the support plate; and a limiting groove connected to the second support unit and extending along the second direction, wherein the limiting bar is movable in the limiting groove.

8. The liftable display device as claimed in claim 7, wherein the limiting bar and the limiting groove are provided in pairs and are respectively located on both sides of the guide rail.

9. The height-adjustable display device as claimed in claim 1, wherein the angle adjustment device includes a damping pivot.

10. The height-adjustable display device as claimed in claim 1, wherein the angle adjustment device comprises: a fixing member including a limiting hole, wherein the second support unit is rotatable relative to the fixing member about the first direction; a turntable disposed on the second support unit, including a plurality of positioning holes; and a pin that can pass through one of the plurality of positioning holes and the limiting hole simultaneously, thereby restricting the rotation of the second support unit relative to the fixing member.

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