Long-strip-shaped liquid crystal display screen

Abstract

The invention discloses a long-strip-shaped liquid crystal display screen which comprises an upper frame and a display mechanism arranged in the upper frame, the upper frame is connected with a lower frame assembly through a connecting mechanism, and a sealing ring is arranged between the upper frame and the lower frame assembly. The lower frame assembly is pulled to move to be matched with the connecting mechanism to drive the moving lower frame assembly to be unfolded, so that the mounting area of the upper frame can be expanded, the display mechanism can be conveniently and directly placed in the space between the upper frame and the unfolded lower frame assembly, and the sealing ring arranged at the upper frame is expanded through the matching of the pulling assembly; the display mechanism can enter conveniently, after the display mechanism and the upper frame are installed, the installed display mechanism can be clamped by reversely moving the lower frame assembly, the pulling assembly can be triggered to reversely move through movement of the connecting mechanism, and a sealing ring is pushed to be attached to the display mechanism; therefore, the display mechanism can be installed and sealed at a time.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display screens, and in particular to a long strip liquid crystal display screen. Background Art

[0002] Liquid crystal display is a type of flat panel display. It is used for screen display of television and computer. The advantages of this display are low power consumption, small size and low radiation. The liquid crystal display uses a liquid crystal solution in two polarized materials, so that when the current passes through the liquid, the crystals will be rearranged to achieve the purpose of imaging. There is also a long strip type of liquid crystal display. The long strip type of liquid crystal display is mainly used in the fields of intelligent transportation display, commercial finance, smart city display, advertising media, large shopping malls and supermarkets, subways, bus stations, banks, and hospitals.

[0003] The LCD screen is mainly composed of two parts, a LCD panel and a backlight module. The backlight module is glued together with the LCD panel by double-sided tape. The LCD panel and the backlight module are not easy to separate after being glued, which is not convenient for later repair of a single LCD panel and backlight module. Moreover, if there is a missing part during gluing, it is not easy to be found, and it will not affect the firmness of the LCD panel and the backlight module. However, the missing part is easy to cause external dust or impurities to enter, especially for some long LCD screens that are placed in an external environment for a long time, which accelerates the damage of the long LCD screen. Moreover, after gluing, the LCD panel and the backlight module need to use multiple combined frames to protect their edge strips, and the operation steps for later maintenance are cumbersome. Summary of the invention

[0004] The object of the present invention is to provide a long strip liquid crystal display screen to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a long strip liquid crystal display screen, comprising an upper frame and a display mechanism arranged in the upper frame, wherein the upper frame is connected to a lower frame assembly via a connecting mechanism, and a sealing ring is arranged between the upper frame and the lower frame assembly; during installation, the lower frame assembly is moved by pulling the lower frame assembly, and the distance between the lower frame assembly and the upper frame is increased by the connecting mechanism, and the part of the sealing ring located at the upper frame is driven to move and open by multiple groups of pulling assemblies, so that the display mechanism can enter and be installed conveniently.

[0006] As a further description of the above technical solution: The lower frame assembly comprises a left frame and a right frame, the right frame is fixedly connected to a limiting rod; the limiting rod is slidably connected to the left frame, and the left frame and the right frame are both fixedly connected to a supporting plate.

[0007] As a further description of the above technical solution: The connecting mechanism includes long strips slidably connected to both sides of the upper frame, and the two long strips are rotatably connected to rotating rods; the two rotating rods are fixedly connected to linkage blocks, and the two linkage blocks are respectively fixedly connected to the corresponding left frame and right frame, and a limiting component is also provided on the rotating rod.

[0008] As a further description of the above technical solution: The limiting assembly includes a ratchet gear fixedly connected to the rotating rod, and a ratchet rod is slidably connected in the long strip; one end of the ratchet rod is fixedly connected to a baffle, and a connecting spring is fixedly connected between the baffle and the long strip, and the elastic force of the connecting spring drives the ratchet rod to engage with the ratchet gear; an unlocking unit for driving the ratchet rod to separate from the ratchet gear is also provided in the long strip.

[0009] As a further description of the above technical solution: The unlocking unit includes an end face inclined rod slidably connected in the long strip block, the top end of the end face inclined rod is fixedly connected to a truncated cone top plate, and a supporting spring is fixedly connected between the truncated cone top plate and the long strip block; an extension block is fixedly connected to the baffle plate, and an inclined groove is provided on the extension block; an unlocking piece in contact with the truncated cone top plate is provided in the upper frame.

[0010] As a further description of the above technical solution: The unlocking member comprises a special-shaped inclined surface block fixedly connected to the upper frame, and the frustum top plate contacts the special-shaped inclined surface block during the movement.

[0011] As a further description of the above technical solution: The pulling assembly includes an abutment plate slidably connected to the upper frame, an arc-shaped abutment rod is fixedly passed through the abutment plate, one end of the arc-shaped abutment rod is fixedly connected to the sealing ring, and an abutment spring is fixedly connected between the abutment plate and the upper frame.

[0012] As a further description of the above technical solution: The upper frame is also provided with a guide assembly for limiting the movement of the long strip, and the guide assembly includes a guide rod rotatably connected to the long strip. A vertical groove is provided in the upper frame, and the guide rod is slidably connected in the vertical groove.

[0013] As a further description of the above technical solution: A clamping assembly is also arranged between the two support plates and the upper frame, and the clamping assembly includes a double-sided inclined block fixedly connected to the support plate; a mounting groove is opened in the upper frame, and an inclined friction rod is connected to the mounting groove through an installation spring.

[0014] As a further description of the above technical solution: The display mechanism includes a tempered explosion-proof film, a liquid crystal panel, a reflective brightness enhancement film, a prism film, a diffusion film, a light guide plate, an LED light bar and a reflective film plate.

[0015] In the above technical solution, the present invention provides a long strip liquid crystal display screen with the following beneficial effects: The present invention sets the upper frame, the display mechanism, the lower frame assembly, the sealing ring, the connecting mechanism and the pulling assembly to cooperate with each other, and pulls the lower frame assembly to move and cooperate with the connecting mechanism to drive the movable lower frame assembly to unfold, so that the installation area of ​​the upper frame can be expanded, and the display mechanism can be directly placed in the space between the upper frame and the unfolded lower frame assembly. The pulling assembly cooperates to expand the sealing ring set at the upper frame, which facilitates the entry of the display mechanism. After the display mechanism and the upper frame are installed, the lower frame assembly can be moved in the reverse direction to clamp the installed display mechanism, and the movement of the connecting mechanism can also trigger the pulling assembly to move in the reverse direction, pushing the sealing ring to fit the display mechanism, so that the display mechanism can be installed and sealed at one time, and the operation steps are simple.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0017] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the overall structure provided by an embodiment of the present invention during operation; Figure 3 A schematic cross-sectional view of a local structure provided by an embodiment of the present invention; Figure 4 A schematic diagram of a partial structure of a connecting mechanism provided in an embodiment of the present invention; Figure 5 A schematic longitudinal section diagram of a long strip block structure provided by an embodiment of the present invention; Figure 6A schematic diagram of the structure of a special-shaped inclined plane block provided in an embodiment of the present invention; Figure 7 A schematic cross-sectional view of the upper frame and left frame structure provided by an embodiment of the present invention; Figure 8 A structural exploded view of a display mechanism provided by an embodiment of the present invention; Fig. 9 for Figure 3 The enlarged view of point A in the middle; Fig.10 for Figure 3 The enlarged view of point B in the middle; Fig.11 for Figure 5 Enlarged view of point C in the middle; Fig.12 for Figure 7 Enlarged view of point D in the middle.

[0020] Description of reference numerals: 1. Upper frame; 11. Sealing ring; 21. Left frame; 22. Right frame; 23. Limit rod; 24. Support plate; 31. Long strip block; 32. Rotating rod; 33. Linkage block; 41. Ratchet gear; 42. Ratchet rod; 43. Baffle; 44. Connecting spring; 51. End face inclined rod; 52. Cone top plate; 53. Support spring; 54. Extension block; 55. Inclined groove; 6. Special-shaped inclined block; 71 , abutment plate; 72, arc-shaped abutment rod; 73, abutment spring; 81, guide rod; 82, vertical groove; 91, double-sided inclined block; 92, mounting groove; 93, mounting spring; 94, inclined friction rod; 101, tempered explosion-proof film; 102, liquid crystal panel; 103, reflective brightness enhancement film; 104, prism film; 105, diffusion film; 106, light guide plate; 107, LED light strip; 108, reflective film plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure. See also Figure 1-12The present embodiment provides a long strip liquid crystal display screen, comprising an upper frame 1 and a display mechanism arranged in the upper frame 1, wherein the upper frame 1 is an existing display mechanism packaging part, and a lower frame assembly is connected to the upper frame 1 through a connecting mechanism, and a sealing ring 11 is arranged between the upper frame 1 and the lower frame assembly, and the sealing ring 11 is also an existing sealing part, and its shape is adapted to the shape and size of the display mechanism; during installation, by pulling the lower frame assembly to move, and by driving the distance between the lower frame assembly and the upper frame 1 to increase through the connecting mechanism, the part of the sealing ring 11 located at the upper frame 1 is driven to move and open through multiple groups of pulling assemblies, so that the display mechanism can enter and be installed conveniently, and the pulling mechanism is triggered by the movement of the lower frame assembly to pull the sealing ring 11 to open synchronously, so as to facilitate the expansion of the installation space of the display mechanism, and the installation is simple and convenient, and the device can realize the one-time installation and sealing of the display mechanism, reducing many steps, and the sealing effect after installation is good, and it is not easy to get dust or water.

[0022] In an embodiment further provided by the present invention, the lower frame assembly includes a left frame 21 and a right frame 22, and a limiting rod 23 is fixedly connected to the right frame 22; the limiting rod 23 is slidably connected to the left frame 21, and a support plate 24 is fixedly connected to the left frame 21 and the right frame 22. The left frame 21 and the right frame 22 are symmetrically distributed, and the left frame 21 and the right frame 22 are the same in size and shape. When the left frame 21 and the right frame 22 are fitted with the upper frame 1, they can be assembled into the same shape as the display mechanism, which is used to wrap and protect the display mechanism.

[0023] Furthermore, the connecting mechanism includes a long strip 31 slidably connected to both sides of the upper frame 1, and the two long strips 31 are rotatably connected to a rotating rod 32; the two rotating rods 32 are fixedly connected to a linkage block 33, and the two linkage blocks 33 are respectively fixedly connected to the corresponding left frame 21 and the right frame 22, and a limiting component is also provided on the rotating rod 32. A groove for the long strip 31 to move is opened on the upper side of the upper frame 1 so that the long strip 31 can move inside it, and one end of the long strip 31 where the rotating rod 32 is set is set to an opening shape so that the linkage block 33 can rotate inside the long strip 31, and the width of the linkage block 33 is consistent with the width of the long strip 31, and its height and length are both smaller than the long strip 31.

[0024] Furthermore, the limit assembly includes a ratchet gear 41 fixedly connected to the rotating rod 32, and a ratchet rod 42 is slidably connected in the long strip block 31; one end of the ratchet rod 42 is fixedly connected to a baffle 43, and a connecting spring 44 is fixedly connected between the baffle 43 and the long strip block 31, and the elastic force of the connecting spring 44 drives the ratchet rod 42 to engage with the ratchet gear 41; an unlocking unit for driving the ratchet rod 42 to separate from the ratchet gear 41 is also provided in the long strip block 31, and one side of the teeth on the ratchet gear 41 is set to be inclined, and the other side is set to be flat, and the ratchet rod 42 and the ratchet gear 41 are connected. One side of one end in contact with each other is set as an inclined surface, and the other side is set as a plane. When the long block 31 and the connecting block rotate relatively and gradually form a straight line between the two, the inclined surface of the ratchet rod 42 contacts the inclined surface end of the ratchet gear 41. Conversely, when the long block 31 and the connecting block rotate relatively and gradually approach each other, the plane of the ratchet rod 42 contacts the plane end of the ratchet gear 41. At this time, the ratchet rod 42 needs to be driven to separate from the ratchet gear 41 with the cooperation of the unlocking unit to realize the rotation of the ratchet gear 41.

[0025] In an embodiment further provided by the present invention, the unlocking unit includes an end face inclined rod 51 slidably connected in the long strip block 31, the top end of the end face inclined rod 51 is fixedly connected with a conical top plate 52, and a support spring 53 is fixedly connected between the conical top plate 52 and the long strip block 31; an extension block 54 is fixedly connected to the baffle 43, and a bevel groove 55 is provided on the extension block 54; an unlocking piece in contact with the conical top plate 52 is provided in the upper frame 1, and when the end face inclined rod 51 enters into the bevel groove 55 on the extension block 54, the extension block 54 can be squeezed to drive the ratchet rod 42 away from the ratchet gear 41 through the baffle 43, and the conical top plate 52 is arranged at the outside of the long strip block 31 where the end face inclined rod 51 extends.

[0026] Specifically, the unlocking member includes a special-shaped inclined surface block 6 fixedly connected to the upper frame 1, and the cone top plate 52 contacts the special-shaped inclined surface block 6 during the movement. The special-shaped inclined surface block 6 is fixed on the groove wall of the long strip block 31 sliding in the upper frame 1. The bottom of one end of the special-shaped inclined surface block 6 is set to an inclined surface shape. When the long strip block 31 drives the cone top plate 52 to slide in the upper frame 1, the cone top plate 52 will first contact the inclined surface of the special-shaped inclined surface block 6, thereby triggering the unlocking unit to unlock the limit assembly. At this time, the long strip block 31 and the connecting block rotate with each other and gradually approach each other, so that the horizontal space between the left frame 21 and the right frame 22 can be expanded.

[0027] In the embodiment provided by the present invention, the pulling assembly includes an abutment plate 71 slidably connected to the upper frame 1, an arc-shaped abutment rod 72 is fixedly passed through the abutment plate 71, one end of the arc-shaped abutment rod 72 is fixedly connected to the sealing ring 11, and an abutment spring 73 is fixedly connected between the abutment plate 71 and the upper frame 1. The arc-shaped abutment rod 72 is squeezed when the long strip block 31 and the connecting block enter the interior of the upper frame 1, thereby pushing the sealing ring 11 to fit the display mechanism more closely. On the contrary, when the long strip block 31 and the connecting block move and unfold, the abutment spring 73 has a restoring force, pulling the sealing ring 11 to expand again, thereby facilitating the entry of the display mechanism and facilitating the installation between the sealing ring 11 and the display mechanism.

[0028] In the solution further provided by the present invention, a guide assembly for limiting the movement of the long strip block 31 is also provided in the upper frame 1, and the guide assembly includes a guide rod 81 rotatably connected to the long strip block 31, and a vertical groove 82 is provided in the upper frame 1, and the guide rod 81 is slidably connected in the vertical groove 82. By providing the vertical groove 82 and the guide rod 81, the long strip block 31 can be prevented from detaching from the long frame, and an inclined groove is provided on the side where the upper frame 1 contacts the lower frame assembly so that the long strip block 31 can rotate in the upper frame 1, and the inclination angle of the inclined groove is less than 90°, so as to prevent the long strip block 31 from being perpendicular to the upper frame 1 and affecting the vertical distance between the upper frame 1 and the lower frame assembly.

[0029] In the solution further provided by the present invention, a snap-in assembly is also provided between the two support plates 24 and the upper frame 1, and the snap-in assembly includes a double-sided bevel block 91 fixedly connected to the support plate 24; a mounting groove 92 is opened in the upper frame 1, and a bevel friction rod 94 is connected to the mounting groove 92 through a mounting spring 93. When the lower frame assembly is assembled with the upper frame 1 assembly, the double-sided bevel block 91 on the support plate 24 enters the mounting groove 92. At this time, the bevel contact side of the double-sided bevel block 91 and the bevel friction rod 94 needs to be roughened to increase the friction force when the bevels of the two are in contact.

[0030] In the solution further provided by the present invention, the display mechanism includes a tempered explosion-proof film 101, a liquid crystal panel 102, a reflective brightness enhancement film 103, a prism film 104, a diffusion film 105, a light guide plate 106, an LED light bar 107 and a reflective film plate 108. The tempered explosion-proof film 101, the liquid crystal panel 102, the reflective brightness enhancement film 103, the prism film 104, the diffusion film 105, the light guide plate 106, the LED light bar 107 and the reflective film plate 108 are arranged in sequence from top to bottom, and the above-mentioned parts are all existing structures and will not be described in detail herein. The tempered explosion-proof film 101 is arranged on the outside of the liquid crystal panel 102 in order to increase the explosion-proof and wear resistance of the liquid crystal panel 102.

[0031] Working principle: When working, by pulling down the left frame 21 or the right frame 22, when it moves away from the upper frame 1, the limit rod 23 will drive the right frame 22 or the left frame 21 connected thereto to move synchronously, and the left frame 21 and the right frame 22 will move downward and drive the long block 31 to slide out of the upper frame 1 through the connecting block. After the long block 31 slides out, it will no longer squeeze the arc-shaped support rod 72. At this time, the restoring force of the support spring 73 connected to the support plate 71 drives the arc-shaped support rod 72 to move through the support plate 71. , stretching the sealing ring 11 to open the sealing ring 11. When the guide rod 81 on the long strip block 31 slides from one end of the vertical groove 82 to the other end, the truncated cone top plate 52 on the long strip block 31 will be squeezed by the special-shaped inclined surface block 6 in the upper frame 1, so that the truncated cone top plate 52 drives the end inclined rod 51 to enter the inclined surface groove 55 in the extension block 54, thereby triggering the extension block 54 to drive the ratchet rod 42 to move and separate from the ratchet gear 41 through the baffle 43, and at this time, the left frame 21 and the right frame are pulled horizontally. 22, so that the left frame 21 and the right frame 22 are separated from each other. At this time, there is a large space between the upper frame 1 and the left frame 21 and the right frame 22, which is convenient for placing the display mechanism to be installed therein, and pushing the display mechanism upward so that the display mechanism enters the sealing ring 11 inside the upper frame 1, and then pushing the right frame 22 and the left frame 21 that are separated from each other to move closer to each other in the opposite direction, and after the lower half of the display mechanism is stuck, the right frame 22 and the left frame 21 are pushed upward to abut against the bottom of the display mechanism. At this time, the long strip block 31 and the connecting block enter the upper frame 1 again, and squeeze the arc-shaped push rod 72 so that the arc-shaped push rod 72 pushes the sealing ring 11 to fit the display mechanism. When the long strip block 31 completes entering the upper frame 1, the upper frame 1 fits with the left frame 21 and the right frame 22, and the double-sided inclined block 91 set on the support plate 24 of the left frame 21 and the right frame 22 enters into the installation groove 92 in the upper frame 1, and abuts against the inclined friction rod 94 in the installation groove 92 to achieve fixation.

[0032] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A long strip liquid crystal display screen, comprising an upper frame (1) and a display mechanism arranged in the upper frame (1), characterized in that: The upper frame (1) is connected to a lower frame assembly via a connecting mechanism, and a sealing ring (11) is provided between the upper frame (1) and the lower frame assembly; During installation, the lower frame assembly is pulled to move, and after the distance between the lower frame assembly and the upper frame (1) is increased by the connection mechanism, the portion of the sealing ring (11) located at the upper frame (1) is driven to move and open by multiple groups of pulling assemblies, thereby facilitating the entry of the display mechanism for installation.

2. A long strip liquid crystal display screen according to claim 1, characterized in that: The lower frame assembly comprises a left frame (21) and a right frame (22), and a limiting rod (23) is fixedly connected to the right frame (22); The limiting rod (23) is slidably connected to the left frame (21), and a support plate (24) is fixedly connected to both the left frame (21) and the right frame (22).

3. A long strip liquid crystal display screen according to claim 2, characterized in that: The connection mechanism comprises a long strip (31) slidably connected to both sides of the upper frame (1), and a rotating rod (32) is rotatably connected to both long strips (31); The two rotating rods (32) are both fixedly connected with a linkage block (33), and the two linkage blocks (33) are respectively fixedly connected to the corresponding left frame (21) and right frame (22). A limit assembly is also provided on the rotating rod (32).

4. A long strip liquid crystal display screen according to claim 3, characterized in that: The limiting assembly comprises a ratchet gear (41) fixedly connected to the rotating rod (32), and a ratchet rod (42) is slidably connected in the long strip (31); One end of the ratchet rod (42) is fixedly connected to a baffle (43), a connecting spring (44) is fixedly connected between the baffle (43) and the long strip (31), and the elastic force of the connecting spring (44) drives the ratchet rod (42) to engage with the ratchet gear (41); The long strip block (31) is also provided with an unlocking unit for driving the ratchet rod (42) to separate from the ratchet gear (41).

5. A long strip liquid crystal display screen according to claim 4, characterized in that: The unlocking unit comprises an end face inclined rod (51) slidably connected to the long strip block (31), a top end of the end face inclined rod (51) being fixedly connected to a truncated cone top plate (52), and a supporting spring (53) being fixedly connected between the truncated cone top plate (52) and the long strip block (31); An extension block (54) is fixedly connected to the baffle (43), and an inclined groove (55) is formed on the extension block (54); An unlocking piece in contact with the truncated cone top plate (52) is provided in the upper frame (1).

6. A long strip liquid crystal display screen according to claim 5, characterized in that: The unlocking member comprises a special-shaped inclined surface block (6) fixedly connected to the upper frame (1), and the truncated cone top plate (52) contacts the special-shaped inclined surface block (6) during the movement.

7. The long strip liquid crystal display screen according to claim 3, characterized in that: The pulling assembly comprises an abutment plate (71) slidably connected to the upper frame (1), an arc-shaped abutment rod (72) fixedly passing through the abutment plate (71), one end of the arc-shaped abutment rod (72) fixedly connected to the sealing ring (11), and an abutment spring (73) fixedly connected between the abutment plate (71) and the upper frame (1).

8. The long strip liquid crystal display screen according to claim 3, characterized in that: The upper frame (1) is also provided with a guide assembly for limiting the movement of the long strip (31), the guide assembly comprising a guide rod (81) rotatably connected to the long strip (31), a vertical groove (82) is provided in the upper frame (1), and the guide rod (81) is slidably connected to the vertical groove (82).

9. The long strip liquid crystal display screen according to claim 2, characterized in that: A clamping assembly is also provided between the two support plates (24) and the upper frame (1), the clamping assembly comprising a double-sided inclined block (91) fixedly connected to the support plates (24); The upper frame (1) is provided with a mounting groove (92), and an inclined friction rod (94) is connected to the mounting groove (92) via a mounting spring (93).

10. The long strip liquid crystal display screen according to claim 1, characterized in that: The display mechanism comprises a tempered explosion-proof film (101), a liquid crystal panel (102), a reflective brightness enhancement film (103), a prism film (104), a diffusion film (105), a light guide plate (106), an LED light bar (107) and a reflective film plate (108).

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