[0041] Figure 1A Is a schematic diagram of an embodiment of the present invention when the dual screens of the display device overlap, and Figure 1B for Figure 1A A partial enlarged view of the sliding structure in area A. Figure 2A for Figure 1A Schematic diagram of the display device when the dual screens are expanded, and Figure 2B for Figure 2A A partial enlarged view of the sliding structure in area B.
[0042] Please refer first Figure 1A and Figure 2A The display device 100 is, for example, a flat display device, which includes a first display screen 110 and a second display screen 120. The first display screen 110 and the second display screen 120 can use liquid crystal display panels (LCD), common thin film transistor liquid crystal display panels (TFT-LCD), or use plasma display panels and organic electroluminescent display panels (OELD ) And other flat display panels, with superior characteristics such as high image quality, high space utilization, low power consumption, and no radiation. In the application of notebook computers, liquid crystal display panels are often used as display screens. However, due to the limitation of size requirements, the existing computer mainframe only has one display screen. The difference is that the present display device 100 has two display screens 110 and 120, and the sliding structure 130 allows the first display screen 110 and the second display screen 120 to move relative to each other, for example, in the horizontal direction, so as to overlap The two display screens 110, 120 can be expanded into a wide display screen composed of the two display screens 110, 120, for the computer host to display data on the two display screens 110, 120, for example, through the support provided by the operating system Display different windows on separate display screens 110, 120, or display different areas of the same image on separate display screens 110, 120 through the cutting/merge function of the software to meet the requirements of use. The detailed description of the display device 100 and its sliding structure 130 will be described in detail below.
[0043] in Figure 1A , The first display screen 110 is located below the second display screen 120 and overlaps each other. At this time, it is in the single-screen display mode. Only the upper second display screen 120 provides a visible display area, and the lower first display screen 110 does not provide a display area, but the first panel 112 on the right side has a button C1, an identifier C2, an indicator light C3, etc., which can be used by the user to operate the button C1 and use the identifier C2 to read the user's identification data or pass The indicator C3 informs the operating status of the system. In addition, the second panel 122 on the left side of the second display screen 120 also has a button C4, which can also be operated by the user. Of course, the display device 100 can also use a touch panel to input required instructions or execute an application program provided by the system, which will not be described in detail here.
[0044] in Figure 1A Among them, the first display screen 110 has a first side surface S1 and a first tooth-shaped track T1 extending parallel to the first side surface S1. For example, the first display screen 110 is slidably disposed on a back plate 140. When the first display screen 110 slides in a sliding direction D1 on the back plate 140, for example, when sliding to the right, the first toothed track T1 can follow the The sliding direction D1 of a display screen 110 slides from one side of the back plate 140 to the other side, for example, slides from the left side of the back plate 140 to the right side, such as Figure 2A Shown. At this time, half (or more, depending on the design) of the first display screen 110 slides out of the back plate 140, but since the length of the first toothed track T1 is half of the first side surface S1, it does not follow The first display screen 110 slides out of the back plate 140 but is blocked on the right side of the back plate 140. In this embodiment, the end of the first toothed track T1 has a threading ring P1, and the signal line (not shown) of the first display screen 110 can pass through the threading ring P1 to pass through the first toothed track T1 , And is electrically connected to an external signal source.
[0045] Similarly, in Figure 1A Among them, the second display screen 120 has a second side surface S2 and a second tooth-shaped track T2 extending parallel to the second side surface S2. The second side surface S2 and the first side surface S1 are parallel to each other. The second display screen 120 is slidably disposed on the first display screen 110. When the second display screen 120 slides in a sliding direction D2 on the first display screen 110, for example, when sliding to the left, the second toothed track T2 can follow The sliding direction D2 of the second display screen 120 slides from one side of the back plate 140 to the other side, for example, slides from the right side of the back plate 140 to the left side, such as Figure 2A Shown. When the two screens 110 and 120 are unfolded, the second side surface S2 remains parallel to the first side surface S1. At this time, half (or more, depending on the design) of the second display screen 120 slides out of the back plate 140, but since the length of the second toothed track T2 is half of the second side surface S2, it does not follow The second display screen 120 slides out of the back plate 140 but is blocked on the left side of the back plate 140. In this embodiment, the end of the second toothed track T2 has a threading ring P2, and the signal line (not shown) of the second display screen 120 can pass through the threading ring P2 to pass through the second toothed track T2 , And is electrically connected to an external signal source.
[0046] In the above embodiment, the back plate 140 is combined with the two display screens 110, 120 and a sliding structure 130 to form the display device 100, wherein the back plate 140 has a first side plate 142 and a second side plate 144, and the two display screens 110, 120 and the sliding structure 130 can slide between the first side plate 142 and the second side plate 144. To describe the sliding structure 130, Figure 1A and Figure 2A There is only a part of the second side plate 144, the rest is omitted, but it is conceivable that the sliding structure 130 is slidably disposed in the sliding groove of the second side plate 144, and the appearance of the second side plate 144 is similar to that of the first side plate 142 The appearance is roughly the same. The first side plate 142 also has sliding grooves for sliding rails (not shown), but not necessarily for sliding toothed rails, but for general smooth rails, mainly auxiliary and balancing rails.
[0047] Next, please refer to Figure 1B and Figure 2B , The display device 100 engages between the first toothed track T1 and the second toothed track T2 with the convex teeth 130A of the runner T3, so that the first display screen 110 and the second display screen 120 are rotated by the runner T3 They overlap each other or expand in opposite directions into larger wide display screens to provide users with different needs. in Figure 1B When the second display screen 120 overlaps the first display screen 110, one end of the first toothed track T1 and one end of the second toothed track T2 overlap each other, and the wheel T3 is positioned at both ends The position of the wheel T3 is roughly located at the center of the overlapping back plate 140 and the two display screens 110 and 120. In addition, in Figure 2B When the first display screen 110 and the second display screen 120 are expanded separately, the other end of the first toothed track T1 and the other end of the second toothed track T2 overlap each other, and the runner T3 will be positioned at the other end. Between the two ends, and the position of the wheel T3 is approximately at the center of the back plate 140 and the two expanded display screens 110 and 120. Therefore, no matter how the two display screens 110 and 120 are moved, the protruding teeth 130A of the wheel T3 can maintain the meshing state with the two-toothed rails T1 and T2, and are stably between the ends of the two-toothed rails T1 and T2. mobile.
[0048] In detail, the runner T3 has a rim 130B surrounding the side surface of the convex teeth 130A, the circumferential surface of which is slightly higher than the ridge line of the convex teeth 130A, which functions as a limit ring, which can connect the two-toothed track T1 , The tooth of T2 is limited to one side of the rim 130B. In addition, a tooth groove 130C is formed between adjacent convex teeth 130A, for example, a fan-shaped tooth groove. When these convex teeth 130A are in rolling contact with the first toothed track T1 and the second toothed track T2, the first toothed track T1 and the second toothed track T2 can be engaged in the tooth groove 130C to keep the runner T3. It moves back and forth on a straight path and is not easy to fall off.
[0049] then, image 3 It is another schematic diagram of the expanded second display screen. Please refer to Figure 2A and image 3 After the second display screen 120 is unfolded, although the display area of the first display screen 110 and the display area of the second display screen 120 can be combined into a larger display area, if the two display screens 110 and 120 are on different horizontal planes, , In fact, no seamless joint is achieved. In order to enable the two adjacent sides S3 and S4 of the two display screens 110 and 120 to be truly joined together in the display device 100, the second display screen 120 is designed to be inclined at an angle along an axis, such as about 10 degrees to 15 degrees. , So that the first display screen 110 and the second display screen 120 are slightly connected in a V shape (one is inclined, the other does not need to be inclined), so that there is no obvious gap between the two adjacent sides S3 and S4 of different horizontal planes. .
[0050] in image 3 In the embodiment, for example, two torsion springs 150 are provided on the back of the second display screen 120, respectively located at two ends of the axis E direction, to provide the force when the second display screen 120 rotates. Please refer to Figure 4A and Figure 4B , Which is a torsion spring 150 configured in image 3 Side view and top view in the axial direction. in Figure 4A The torsion spring 150 generates a torsion force between the two application points G1 and G2. This torsion force abuts between the two display screens 110 and 120 when the two display screens 110 and 120 are superimposed, so the torsion force and the external interference force In a state of static balance, the second display screen 120 cannot be rotated. However, when the two display screens 110 and 120 are unfolded, when the external interference force is less than the torsion force, the torsion force will force the second display screen 120 to rotate until its back side obliquely touches the back plate 140. Therefore, the two adjacent sides S3 and S4 of the two display screens 110 and 120 can be truly joined together.
[0051] In this embodiment, when the second display screen 120 is tilted, the second tooth-shaped track T2 is engaged in the sliding groove of the second side plate 144 and therefore does not rotate with the second display screen 120. At the same time, the torsion spring 150 is applied to the first protrusion F1 of the second toothed track T2 to generate a reaction force, and the second display screen 120 is rotated relative to the second toothed track T2 by the reaction force (ie torsion) , Keep it in a tilted state. Moreover, the side of the second toothed track T2 is also provided with a second protrusion F2, and the side of the second display screen 120 is provided with a groove F3. When the second display screen 120 is not inclined, the second protrusion F2 Can be accommodated in groove F3. When the second display screen 120 rotates, the groove F3 moves downward and is not on the same level as the second protrusion F2, thus releasing the engaged state, but when the second display screen 120 is forced to return to the horizontal state At this time, the second protrusion F2 and the groove F3 return to the engaged state. The above-mentioned engagement method is only one of the possible positioning mechanisms, and the present invention is not limited.
[0052] In this embodiment, although only one sliding structure 130 is introduced, it includes two tooth-shaped tracks T1, T2 and a runner T3. However, it is conceivable that the present display device 100 may have a set of sliding structures 130 located in the first side plate 142 and the second side plate 144 on the opposite sides of the two display screens 110 and 120, and their action modes are the same. This is omitted. In addition, the supporting force provided by the back plate 140 can be replaced by other supporting mechanisms. Even without the support of the back plate 140, the two display screens 110 and 120 can still be stacked or expanded separately by the sliding structure 130, so it does not affect An embodiment of the present display device 100.
[0053] In summary, the display device of the present invention includes a first display screen, a second display screen, and a sliding structure. The first display screen has a first tooth-shaped track, and the second display screen has a second tooth-shaped track. The second display screen can be slidably overlapped or expanded on the first display screen, and the second display screen is expanded and combined with the first display screen to form a wide display screen. The surface of the runner has a plurality of convex teeth, and these convex teeth roll in contact with the first tooth-shaped track and the second tooth-shaped track, and follow the relative movement of the first and second display screens in the first tooth-shaped track and the second Move between the ends of the two-toothed track. Therefore, when the display device is applied to a notebook computer, the size of the screen can be changed from a single-screen size to a dual-screen size, and the width is lengthened to double the original width, allowing users to use a larger screen; When you want to carry it out, you can also stack the two display screens together to reduce the space occupied and make storage more flexible.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
