TW202134812A - Display device having a screen designed to be raised or lowered for height adjustment - Google Patents

Abstract

A display device includes a base, a display screen, and a lifting mechanism. The display screen includes a rear surface, and the display screen is formed with an accommodating groove recessed from the rear surface toward the front. The lifting mechanism is provided on the base and is fitted in the accommodating groove and joined to the display screen. The display screen can be raised or lowered relative to the base through the lifting mechanism. By fitting the lifting mechanism into the accommodating groove of the display screen, the lifting mechanism does not need to be integrated with the base, so that the base can be designed to be miniaturized or diversified in shapes according to requirements.

Description

Display device

The present invention relates to a display device, in particular to a display device whose display screen can be raised and lowered to adjust the height position.

Existing display devices usually have a lifting mechanism arranged outside of a display screen and combined with a bottom plate, so that the lifting mechanism and the bottom plate together form a supporting base.

Due to the large number of components and complex structure of the lifting mechanism, the overall volume of the lifting mechanism is large. Therefore, the lifting mechanism will affect the overall volume and appearance of the base, making the overall volume of the base large and unable to meet the needs of miniaturization, and the appearance of the base has to be adapted to the shape of the lifting mechanism and cannot meet the diversified requirements. Therefore, the design of the base is subject to many restrictions.

In addition, the lifting mechanism and the display screen are fastened together by a number of screws. Therefore, the lifting mechanism needs to be assisted by a screwdriver during the assembly or disassembly process, which makes the assembly and disassembly process inconvenient and labor intensive. Time.

Therefore, one object of the present invention is to provide a display device that can overcome at least one of the disadvantages of the prior art.

Therefore, the display device of the present invention includes a base, a display screen, and a lifting mechanism. The display screen includes a rear surface, and the display screen is formed with a receiving groove recessed from the rear surface toward the front. The lifting mechanism is arranged on the base and is fitted in the accommodating groove and joined to the display screen. The display screen can be raised or lowered relative to the base through the lifting mechanism.

In the display device of the present invention, the lifting mechanism includes a lifting frame, two sliding rails, a connecting assembly, and a spring assembly. The lifting frame is formed with an accommodating space, the sliding rails are arranged in the accommodating space and fixed to the lifting frame, the connecting assembly is arranged in the accommodating space and connected between the base and the sliding rails, the The lifting frame can slide up and down relative to the connecting assembly through the sliding rails, and the spring assembly is connected between the lifting frame and the connecting assembly to enable the lifting frame to be positioned at a desired height position.

In the display device of the present invention, the lifting frame includes a front housing and a cover plate covering the front housing. The front housing and the cover plate jointly define the accommodating space, and the front housing is detachably Connected to the display screen, the cover plate is formed with a long groove communicating with the accommodating space and for the connecting component to pass through.

In the display device of the present invention, the lifting mechanism includes a lifting frame fitted in the accommodating groove and detachably connected to the display screen, and the lifting frame has a back surface that is coplanar with the rear surface.

In the display device of the present invention, the display screen includes a screen casing, a locking button, and a spring, the screen casing has the rear surface and forms the accommodating groove, and the locking button is connected to the screen casing to be slidable up and down Body and located in front of the accommodating groove, the spring is arranged between the screen housing and the locking button to apply an elastic force to the locking button downward, and the lifting mechanism includes a lifting frame fitted in the accommodating groove The lifting frame has a lower hook that can be detachably buckled on the locking button, and an upper hook that can be detachably buckled on the screen housing. The locking button can be pressed and slid to disengage from the lower hook. Card hook.

In the display device of the present invention, the screen housing has a bottom plate, the bottom plate is formed with a lower opening, and the locking button is partially penetrated in the lower opening for pressing.

In the display device of the present invention, the locking button has a sliding plate that is slidably connected to the screen housing and used for the lower hook to buckle, and a sliding plate vertically connected to the bottom end of the sliding plate and passing through the bottom A pressing plate with an opening, the spring is arranged between the screen housing and the top end of the sliding plate.

In the display device of the present invention, the sliding plate has a blocking elevation and a downward inclined surface located behind the blocking elevation, and each of the lower hooks has a bottom for the sliding plate to abut tightly The arm portion of the arm portion, and a hook portion formed at the front end of the arm portion and buckled on the stopping elevation, the hook portion can contact the lower inclined surface and slide on it to push the sliding plate upward to be locked Buckle on the stop facade.

In the display device of the present invention, the screen housing further has a back plate connected to the top of the bottom plate, and the back plate is formed with a through hole communicating with the accommodating groove for the lower hook to pass through, and a hole communicating with the lower hole The top end is used for a through hole for accommodating the pressing plate, and an embedding hole communicated with the accommodating groove for the upper hook to be embedded.

In the display device of the present invention, the sliding plate is formed with a plurality of elongated guide holes, the screen housing further has a back plate connected to the top of the bottom plate, and the back plate has a plurality of elongated guide holes respectively passing through The convex post in the hole and the two buckles are respectively blocked on the side hooks on the left and right sides of the sliding plate at the front end of the sliding plate.

Therefore, the display device of the present invention includes a base, a display screen, and a lifting mechanism. The display screen includes a screen casing and a locking mechanism. The screen casing has a rear surface. The screen casing is formed with a accommodating groove recessed forward from the rear surface. The locking mechanism is arranged in the screen casing And is located in front of the accommodating slot. The lifting mechanism is arranged on the base and includes a lifting frame, the lifting frame is fitted in the accommodating groove and is detachably joined to the screen housing and the locking mechanism, and the display screen can be opposite to the display screen through the lifting frame When the base rises or falls, the locking mechanism locks the lifting frame and can be pressed to release the lock with the lifting frame.

In the display device of the present invention, the lifting mechanism further includes two sliding rails, a connecting component, and a spring component. The sliding rails are arranged in the lifting frame, and the connecting component is arranged in the lifting frame and connected to the base Between the lifting frame and the sliding rails, the lifting frame can slide up and down relative to the connecting assembly through the sliding rails, and the spring assembly is connected between the lifting frame and the connecting assembly to enable the lifting frame to be positioned as required The height position.

In the display device of the present invention, the locking mechanism includes a locking button and a spring. The locking button is slidably connected to the screen housing and located in front of the accommodating groove. The spring is disposed on the screen housing and the lock The buttons are used to apply elastic force downward to the locking button. The lifting frame has a lower hook that can be detachably locked on the locking button, and an upper hook that can be detachably locked on the screen shell. The locking button can be pressed and operated to slide to disengage from the lower hook.

The effect of the present invention is that the lifting mechanism does not need to be integrated with the base by the way that the lifting mechanism is fitted into the accommodating slot of the display screen, so that the base can be designed to be small in size according to requirements The shape or shape is designed to be diversified.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIG. 1, it is an embodiment of the display device of the present invention. The display device 100 includes a base 1, a display screen 2, and a lifting mechanism 3.

The base 1 includes a bottom plate 11 and a support frame 12 disposed on the bottom plate 11 and protruding from the top end thereof. The supporting frame 12 is in an inverted L shape and has a straight frame body 121 and a curved frame body 122. The upright frame 121 extends along a vertical direction Z. The curved frame body 122 is bent and extends forward from the top end of the upright frame body 121.

Referring to FIGS. 2, 3 and 4, the display screen 2 includes a screen housing 21, a display panel (not shown), and a locking mechanism 23. The display panel is arranged in the screen housing 21. The screen housing 21 has a bottom plate 211 and a back plate 212 connected to the top of the bottom plate 210. The bottom plate 211 is formed with a bottom opening 213. The back plate 212 has a back plate body 214 and a frame body 215. The back plate body 214 has a rear surface 216. The frame body 215 protrudes forward from the back plate body 214 and is connected to the bottom plate 211. The frame body 215 and the bottom plate 211 jointly define a rear surface 216 that is recessed forward for the lifting mechanism 3 The accommodating groove 217 is fitted. The frame body 215 has a vertical wall 218, a top wall 219, a plurality of protrusions 220, two side hooks 221, and two stoppers 222. Two through holes 223 and a through hole 224 are formed at the bottom end of the vertical wall 218. The through holes 223 are spaced along a left-right direction Y and are respectively located on the left and right sides of the lower opening 213. The through hole 224 is located between the through holes 223 and communicates with the top end of the lower opening 213. The through holes 223 and the through holes 224 are connected to the accommodating groove 217. The top wall 219 is connected to the top end of the vertical wall 218, and the top wall 219 is formed with two embedding holes 225 connected to the containing groove 217 and respectively located above the through holes 223. The protruding pillars 220 are protruded from the front end of the vertical wall 218 and are spaced apart from each other along the left-right direction Y. The side hooks 221 are protruded from the front end of the vertical wall 218 and are spaced apart along the left-right direction Y, and the side hooks 221 are respectively located on the left and right sides of the protruding posts 220. The stoppers 222 are protrudingly provided at the front end of the vertical wall 218 and are spaced apart along the left-right direction Y and located above the protruding pillars 220.

3 and 4, the locking mechanism 23 is disposed in the screen housing 21 and located in front of the accommodating groove 217 (shown in FIG. 2) along a front-to-back direction X. The locking mechanism 23 includes a locking button 24, And two springs 25. The locking button 24 has a sliding plate 241 and a pressing plate 242. The sliding plate 241 is an upright vertical plate and is formed with a plurality of elongated guide holes 243 for the protruding pillars 220 to pass through, each of the elongated guide holes 243 is elongated and its length is along the It extends in the vertical direction Z. Through the cooperation of each of the elongated guide holes 243 and the corresponding protruding post 220, the sliding plate 241 can be guided and restricted from sliding in the vertical direction Z. The side hooks 221 are buckled at the front end of the sliding plate 241 and are respectively blocked on the left and right sides of the sliding plate 241, thereby allowing the sliding plate 241 to slide up and down and preventing the sliding plate 241 from shaking back and forth Or shake left and right. Due to the connection relationship between the sliding plate 241 and the protruding posts 220 and the side hooks 221, the sliding plate 241 can be slidably connected to the front end of the vertical wall 218 of the back plate 212. The sliding plate 241 has two blocking elevations 244 located on the front side and adjacent to the bottom end, and two lower inclined surfaces 245 located on the rear side and adjacent to the bottom end (only one of which is shown in FIG. 4). The blocking vertical surfaces 244 are spaced apart along the left and right direction Y and are respectively adjacent to the left and right sides of the sliding plate 241. The lower slopes 245 are spaced apart along the left and right direction Y and are respectively adjacent to the left and right sides of the sliding plate 241. The lower slopes 245 are respectively located behind the blocking elevations 244 and face downwards, and the lower slopes 245 respectively correspond to These perforations 223 forward.

The pressing plate 242 is a horizontal plate vertically connected to the bottom end of the sliding plate 241 and passing through the lower opening 213. The pressing plate 242 is used to press the user's fingers to make the pressing plate 242 The sliding plate 241 can be driven to slide upward. With the design of the pressing plate 242 being a horizontal plate vertically connected to the bottom end of the sliding plate 241, the pressing plate 242 can be designed to be larger in size according to requirements without being affected by the thickness of the sliding plate 241 The limitations. Thereby, the pressing plate 242 can provide a larger area for the user's fingers to press, so as to improve the convenience of pressing operation.

Each of the springs 25 is a compression spring, the upper and lower ends of which abut against the corresponding top end of the stopper 222 and the sliding plate 241 respectively. The springs 25 are used to apply an elastic force to the locking button 24 downward to keep the locking button 24 at the position where the sliding plate 241 abuts against the top surface of the bottom plate 211 (as shown in FIG. 7 ).

Referring to FIGS. 2, 5 and 6, the lifting mechanism 3 includes a lifting frame 31, two sliding rails 33, a connecting component 34, and a spring component 35. The lifting frame 31 is used to fit into the accommodating groove 217 and detachably engage with the screen housing 21 and the locking mechanism 23 (as shown in FIG. 3). The lifting frame 31 includes a front housing 311, A cover 312, and a plurality of screws 313. The front housing 311 has a front vertical plate 314, two side plates 315, a top plate 316, two lower hooks 317, and two upper hooks 318. The side plates 315 respectively extend rearward from the left and right sides of the front upright plate 314 and are spaced apart along the left and right direction Y. The top plate 316 extends rearward from the top end of the front vertical plate 314. The lower hooks 317 are arranged at the bottom end of the front vertical plate 314 and are spaced apart along the left and right direction Y, and each of the lower hooks 317 has an arm 319 protruding forward from the bottom end of the front vertical plate 314 , And a hook 320 formed at the front end of the arm 319. Each lower hook 317 is used to pass through the corresponding through hole 223 and be detachably buckled on the corresponding blocking elevation 244 of the locking button 24 (as shown in FIG. 4 ). The upper hooks 318 protrude from the rear end of the top plate 316 and protrude from the top surface of the top plate 316 and are spaced apart along the left and right direction Y. Each of the upper hooks 318 is detachably embedded in the corresponding embedding hole 225 .

The cover 312 covers the rear end of the front housing 311, and the two are locked together by the screws 313. The front housing 311 and the cover plate 312 jointly define an accommodating space 321. The cover plate 312 is formed with an elongated groove 322 communicating with the accommodating space 321, and the length of the elongated groove 322 extends along the up-down direction Z. The cover plate 312 has a back surface 323, and the back surface 323 can be coplanar with the back surface 216 of the back plate body 214. In this embodiment, the back plate body 214, the rear surface 216, and the back surface 323 are all curved as an example, but not limited to this.

The slide rails 33 are arranged in the accommodating space 321, and each slide rail 33 is locked to the inside of the corresponding side plate 315 of the front housing 311 through a plurality of screws 36, and each slide rail 33 is along the up-down direction Z extend.

The connecting assembly 34 includes a connecting block 341 and a connecting piece 342. The connecting block 341 has a first block 343 located in the accommodating space 321, and a second block 344 located on the rear side of the cover plate 312 and received in the curved frame 122 of the support frame 12. And a third block 345 connected between the first block 343 and the second block 344 and passing through the elongated groove 322. The left and right sides of the first block 343 are respectively locked on the inner side of the sliding rails 33 through a plurality of screws 37. The second block 344 is connected to the curved frame 122 through the connecting member 342. The connecting member 342 in this embodiment is an example of a hinge, so that the connecting block 341 can pivot relative to the support frame 12 through the connecting member 342 to adjust the angle. The lifting frame 31 can slide up and down relative to the connecting block 341 through the sliding rails 33, so that the display screen 2 can be raised or lowered relative to the base 1 through the lifting mechanism 3 to adjust the height position.

The spring assembly 35 includes a plurality of constant force springs 351, and the constant force springs 351 are fixedly connected between the first block 343 and the front housing 311. With the setting of the constant force springs 351, the lifting frame 31 can be positioned at a desired height position when sliding upward or downward relative to the connecting block 341.

Referring to FIG. 7, when the lifting mechanism 3 is to be assembled to the display screen 2, first, the lifting mechanism 3 is rotated by an appropriate angle into a tilted state, so that the upper hooks 318 are tilted forward. Then, the lifting frame 31 is inserted into the accommodating slot 217 in a forward and upward oblique direction, so that the upper hooks 318 are respectively inserted into the embedding holes 225.

4 and 8, the lifting frame 31 is rotated along a first rotation direction R1 through the support frame 12, and during the rotation of the lifting frame 31, each of the lower hooks 317 will pass through the accommodating groove 217. Corresponding to the perforation 223. Subsequently, the hook portion 320 of each of the lower hooks 317 will contact the corresponding lower inclined surface 245 of the locking button 24, and an upward component force exerted by the hook portion 320 on the lower inclined surface 245 will move the lower inclined surface 245 toward the lower inclined surface 245. Push up and slide on the lower inclined surface 245 to prompt the locking button 24 to slide upward in an upward moving direction D1. During the upward sliding of the locking button 24, the springs 25 are compressed to deform and accumulate the return elastic force. The through hole 224 is connected to the top of the lower opening 213 and allows the pressing plate 242 to be accommodated, so that when the locking button 24 slides upward, the pressing plate 242 can move away from the lower opening 213 and move to the The through hole 224 is contained therein.

9 and 10, when the front vertical plate 314 of the lifting frame 31 contacts the vertical wall 218 and is blocked by the vertical wall 218, the lifting frame 31 can no longer rotate and is fitted into the receiving groove 217. At this time, the hook portion 320 of each of the lower hooks 317 crosses the bottom end of the sliding plate 241 and separates from it, and the locking button 24 springs down by the return elastic force accumulated by the springs 25, so that the locking button 24 automatically slides down in the down-moving direction D2. When the bottom end of the sliding plate 241 contacts the arm portion 319 of each of the lower hooks 317, it will be blocked by it and cannot continue to move down. The locking button 24 is positioned at a locking position as shown in FIG. 9, at this time, The hook portion 320 of each lower hook 317 is buckled with the corresponding blocking elevation 244, and each upper hook 318 is embedded in the corresponding embedding hole 225 and buckled on the top wall 219. The pressing plate 242 of the locking button 24 is moved away from the through hole 224 and positioned in the lower opening 213 as shown in FIG. 10. The springs 25 exert an elastic force on the locking button 24 downward, so that the bottom end of the sliding plate 241 of the locking button 24 can tightly abut on the arms 319 of the lower hooks 317, thereby It can be ensured that the locking button 24 is firmly positioned at the locking position, so that the hook portions 320 of the lower hooks 317 are respectively and reliably locked on the blocking elevations 244. The hooks 320 of the lower hooks 317 are respectively buckled on the stopping elevations 244 and the upper hooks 318 are buckled on the top wall 219 to prevent the lifting frame 31 from moving backwards. It can be firmly fitted into the accommodating groove 217.

1 and 9, in addition, when the lifting frame 31 is fitted into the accommodating groove 217, the back surface 323 of the cover plate 312 is coplanar with the back surface 216 of the back plate body 214, thereby, The flatness between the lifting frame 31 and the screen housing 21 can be improved, and the overall appearance of the display device 100 can be improved smoothly and smoothly.

11 and 12, when the lifting mechanism 3 is to be removed from the display screen 2, first, the user presses the pressing plate 242 along the upward movement direction D1 with a finger, so that the locking button 24 slides upwards Figure 11 shows the unlocked position. At this time, the blocking elevations 244 of the locking button 24 move away from the hook portions 320 of the lower hooks 317, respectively. At the same time, the lifting frame 31 is rotated by the supporting frame 12 in a second rotation direction R2 opposite to the first rotation direction R1 (as shown in FIG. 8) by an appropriate angle, so that the lower hooks 317 are sequentially Move away from the bottom end of the sliding plate 241, the through holes 223, and the accommodating groove 217 to form an inclined state as shown in FIG. 12. Subsequently, the lifting frame 31 is moved away from the accommodating slot 217 in a backward and downward oblique direction, that is, the lifting mechanism 3 can be detached from the display screen 2.

5 and 9, the sliding rails 33, the connecting block 341 of the connecting assembly 34, and the spring assembly 35 are arranged in the accommodating space 321 of the lifting frame 31, and the lifting frame 31 is fitted The way inside the accommodating groove 217 makes the lifting mechanism 3 not need to be integrated with the support frame 12 of the base 1. Thereby, the lifting mechanism 3 will not cause the influence and limitation of the support frame 12 in the design, so that the support frame 12 can be designed to be miniaturized or diversified in shape according to requirements, so as to meet the aforementioned design requirements. need.

9 and 10, in addition, by the locking mechanism 23 and the lower hooks 317 and the upper hooks 318 of the lifting frame 31, the quick release structure design makes the user not need any assistance With the aid of tools, the lifting frame 31 can be assembled to or disassembled from the screen housing 21 conveniently and quickly, which can greatly improve the convenience of assembly and disassembly to save assembly and disassembly man-hours. Furthermore, the locking mechanism 23 is arranged in the screen housing 21 and located in front of the accommodating groove 217, and the pressing plate 242 of the locking button 24 passes through the lower opening 213 of the bottom plate 211 In this way, the position where the pressing plate 242 is located will not be blocked by any structure, thereby improving the convenience of the user's fingers during the pressing operation.

4 and 6, it should be noted that, in other implementation aspects of this embodiment, the number of the blocking elevations 244 of the locking button 24 and the number of the lower slopes 245, the number of the springs 25, The number of the perforations 223, the number of the embedded holes 225, the number of the lower hooks 317, and the number of the upper hooks 318 can also be one each, which is not limited to the number disclosed in this embodiment.

In summary, the display device 100 of this embodiment is arranged in the accommodating space 321 of the lifting frame 31 by the sliding rails 33, the connecting assembly 34, and the spring assembly 35, and the lifting frame 31 The way of fitting into the accommodating groove 217, the lifting mechanism 3 does not need to be integrated with the support frame 12 of the base 1, so that the support frame 12 can be designed to be miniaturized or shaped according to requirements. Into diversification. In addition, the quick-release structure design formed by the locking mechanism 23 and the lower hooks 317 and the upper hooks 318 of the lifting frame 31 makes it convenient for users without the assistance of any auxiliary tools. Quickly assembling or disassembling the lifting frame 31 to the screen housing 21 or disassembling from the screen housing 21 can greatly improve the convenience of assembly and disassembly to save assembly and disassembly man-hours, so it can indeed achieve the cost of the invention. Purpose.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

100: display device 1: base 11: bottom plate 12: Support frame 121: upright frame 122: curved frame 2: display screen 21: Screen shell 211: bottom plate 212: Backplane 213: lower opening 214: back plate body 215: Frame 216: back surface 217: Containment Slot 218: Wall 219: Top Wall 220: convex column 221: Side hook 222: Stop 223: Piercing 224: Through hole 225: recessed hole 23: Locking mechanism 24: Lock button 241: Sliding Plate 242: Press plate 243: Long guide hole 244: Stop Facade 245: lower slope 25: spring 3: Lifting mechanism 31: Lifting frame 311: front shell 312: Cover 313: Screw 314: Front Stand 315: Side Panel 316: top plate 317: Under the hook 318: On the hook 319: Arm 320: hook 321: accommodating space 322: Long Groove 323: Back 33: Slide rail 34: Connecting components 341: connection block 342: Connector 343: The first block 344: second block 345: The Third Block 35: spring assembly 351: Constant force spring 36: Screw 37: Screw D1: Move up direction D2: Move down direction R1: first rotation direction R2: second rotation direction X: front and rear direction Y: left and right direction Z: Up and down direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a perspective view of an embodiment of the display device of the present invention; Figure 2 is a three-dimensional exploded view of the embodiment, illustrating the assembly relationship between a base, a display screen and a lifting mechanism; 3 is an incomplete three-dimensional view of the display screen of the embodiment, illustrating the assembly relationship between a screen housing and a locking mechanism; 4 is an incomplete three-dimensional exploded view of the display screen of the embodiment, illustrating the assembly relationship between the screen housing, a locking button, and two springs; 5 is an incomplete three-dimensional view of the base and the lifting mechanism of the embodiment, illustrating the detailed structure of the lifting mechanism and the connection relationship between the lifting mechanism and the base; FIG. 6 is an incomplete three-dimensional exploded view of the base and the lifting mechanism of the embodiment, illustrating the assembling relationship between a lifting frame, two sliding rails, a connecting component, and a spring component; Figure 7 is an assembly schematic view of this embodiment, illustrating that the lifting frame is inserted obliquely into a accommodating slot, so that the two upper hooks are respectively inserted into the two embedding holes; Figure 8 is an assembly schematic view of the embodiment, illustrating the rotation of the lifting frame so that the two hooks push the locking button upwards; Figure 9 is an assembly diagram of the embodiment, illustrating that the lifting frame is fitted into the accommodating groove, the upper hooks are buckled on a top wall, the lower hooks are buckled on the locking button, and the The locking button is in a locked position; Figure 10 is an assembly diagram of the embodiment, illustrating that a pressing plate of the locking button is positioned in the lower opening; FIG. 11 is a schematic diagram of a disassembly of the embodiment, illustrating that the pressing plate is pressed upward so that the locking button slides upward to an unlocking position; and Fig. 12 is a schematic diagram of disassembly of the embodiment, illustrating that rotating the lifting frame makes the lower hooks move away from the locking button and the accommodating groove.

1: base

11: bottom plate

12: Support frame

2: display screen

21: Screen shell

211: bottom plate

212: Backplane

213: lower opening

214: back plate body

215: Frame

216: back surface

217: Containment Slot

223: Piercing

224: Through hole

225: recessed hole

3: Lifting mechanism

31: Lifting frame

312: Cover

323: Back

Claims (13)

A display device including: A base A display screen, including a rear surface, the display screen is formed with a accommodating groove recessed forward from the rear surface; and A lifting mechanism is arranged on the base and fitted in the accommodating groove and joined to the display screen. The display screen can be raised or lowered relative to the base through the lifting mechanism. The display device according to claim 1, wherein the lifting mechanism includes a lifting frame, two sliding rails, a connecting assembly, and a spring assembly, and the lifting frame is fitted in the accommodating groove and is detachably engaged On the display screen, the lifting frame is formed with an accommodating space, the slide rails are arranged in the accommodating space and fixed to the lifting frame, and the connecting assembly is arranged in the accommodating space and connected to the base and the Between the sliding rails, the lifting frame can slide up and down relative to the connecting assembly through the sliding rails, and the spring assembly is connected between the lifting frame and the connecting assembly to enable the lifting frame to be positioned at a desired height position . The display device according to claim 2, wherein the lifting frame includes a front housing and a cover plate covering the front housing, and the front housing and the cover plate jointly define the accommodating space, The front shell can be detachably connected to the display screen, and the cover plate is formed with a long groove communicating with the accommodating space and for the connecting component to pass through. The display device according to claim 1, wherein the lifting mechanism includes a lifting frame fitted in the accommodating groove and detachably connected to the display screen, the lifting frame having a coplanar surface with the rear surface back. The display device according to claim 1, wherein the display screen includes a screen housing, a locking button, and a spring, the screen housing has the rear surface and forms the accommodating groove, and the locking button can slide up and down Ground is connected to the screen housing and located in front of the accommodating groove, the spring is arranged between the screen housing and the locking button to apply an elastic force to the locking button downwards, the lifting mechanism includes a fitting in the accommodating A lifting frame in the slot, the lifting frame has a lower hook that can be detachably buckled on the locking button, and an upper hook that can be detachably buckled on the screen housing, and the locking button can be operated by pressing And slide to disengage the lower hook. The display device according to claim 5, wherein the screen housing has a bottom plate, the bottom plate is formed with a lower opening, and the locking button is partially penetrated in the lower opening for pressing. The display device according to claim 6, wherein the locking button has a sliding plate that is slidably connected to the screen housing and used for the lower hook to buckle, and a bottom end of the sliding plate is vertically connected And a pressing plate passing through the lower opening, and the spring is arranged between the screen housing and the top end of the sliding plate. The display device according to claim 7, wherein the sliding plate has a stopping elevation, and a downward slope located behind the stopping elevation, and each of the lower hooks has a The bottom end of the board closely abuts the arm portion, and a hook portion formed at the front end of the arm portion and buckled on the stop elevation surface, the hook portion can contact the lower inclined surface and slide on the sliding plate Push up to the top and buckle on the blocking elevation. The display device according to claim 7, wherein the screen housing further has a back plate connected to the top of the bottom plate, and the back plate is formed with a through hole communicating with the accommodating groove for the lower hook to pass through, and a connecting hole. A through hole that passes through the top of the lower opening for accommodating the pressing plate, and an embedding hole communicated with the accommodating groove for the upper hook to be embedded. The display device according to claim 7, wherein the sliding plate is formed with a plurality of elongated guide holes, the screen housing further has a back plate connected to the top of the bottom plate, and the back plate has a plurality of penetrating holes. The protruding posts in the elongated guide holes and the two buckles are at the front end of the sliding plate and are respectively blocked by the side hooks on the left and right sides of the sliding plate. A display device including: A base A display screen includes a screen casing and a locking mechanism. The screen casing has a rear surface. The screen casing is formed with a accommodating groove recessed forward from the rear surface. The locking mechanism is arranged on the screen casing In the body and in front of the accommodating slot; and A lifting mechanism is arranged on the base and includes a lifting frame, the lifting frame is fitted in the accommodating groove and detachably joined to the screen housing and the locking mechanism, the display screen can be opposite to the display screen through the lifting frame When the base rises or falls, the locking mechanism locks the lifting frame and can be pressed to release the lock with the lifting frame. The display device according to claim 11, wherein the lifting mechanism further includes two sliding rails, a connecting component, and a spring component, the sliding rails are arranged in the lifting frame, and the connecting component is arranged on the lifting frame Inside and connected between the base and the sliding rails, the lifting frame can slide up and down relative to the connecting assembly through the sliding rails, and the spring assembly is connected between the lifting frame and the connecting assembly to enable the The lifting frame is positioned at the required height. The display device according to claim 11 or 12, wherein the locking mechanism includes a locking button and a spring, and the locking button is slidably connected to the screen housing and located in front of the accommodating groove, and the spring is arranged Between the screen housing and the locking button, it is used to apply an elastic force to the locking button downward. The upper hook of the screen shell, the locking button can be pressed and operated to slide to disengage from the lower hook.

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