A modular liquid crystal display module

Abstract

The present application provides a modular liquid crystal display module, which relates to the field of displays and includes an installation inner frame. The installation inner frame includes two parallel side guard plates, and a first bottom cross beam is reserved at one end between the two side guard plates and close to the bottom end of the mobile phone; a second cross beam is reserved between the other ends of the two side guard plates. A backlight module is fixed on one side of the second cross beam close to the front of the mobile phone. A second polarizing plate, a liquid crystal screen, a first polarizing plate, a glue plate and tempered glass are sequentially arranged on the side of the backlight module away from the second cross beam; one end of the installation inner frame close to the top end of the mobile phone is fixed with a first fixed cross beam by screws; a top cover for wrapping the end and corners of the tempered glass is clamped on the side surface of the first fixed cross beam; strip-shaped through holes with the same axis and the same size are opened in the middle of the top cover and the first fixed cross beam. The present application can eject and retract the front camera module while cleaning the dust blocked at this gap from the inside to the outside in time, effectively preventing blockage during entry and exit.

Description

Technical Field

[0001] The present invention relates to the field of displays, and more particularly, to a modular liquid crystal display module. Background Art

[0002] A mobile phone display module refers to a complete display unit that integrates a display panel, a touch panel, a backlight module, and other related components. The mobile phone display module is the core component of the mobile phone screen, responsible for displaying all images and interface contents, and at the same time providing users with a touch interaction function. This module is usually composed of multiple sub-components to ensure the display effect, touch response, and overall performance.

[0003] After retrieval, in order to make the screen surface appear smoother and larger, the front camera module in the prior art liquid crystal display module is hidden inside the mobile phone, and the front camera module is pushed out from the top or other positions of the mobile phone when front camera shooting is needed. Although this method can keep the front of the screen clean without a camera usually, after a long time of use, dust is inevitably deposited at the exit gap of the camera, but the gap is inconvenient to clean. Over time, the entry and exit of the camera will become less smooth, affecting the smoothness of use.

[0004] Therefore, we propose a new liquid crystal display module that can prevent dust from blocking the entry and exit of the camera. Summary of the Invention

[0005] The purpose of the present invention is to address the phenomenon that after a period of use, the display module with a lifting camera will have unsmooth entry and exit of the camera due to the blockage of the exit gap.

[0006] In order to achieve the above invention purpose, the present invention provides a modular liquid crystal display module to improve the above problems.

[0007] Specifically, this application is as follows:

[0008] A modular liquid crystal display module includes an installation inner frame. The installation inner frame includes two parallel side guards, and there is a first bottom cross beam reserved at one end close to the bottom of the mobile phone between the two side guards; there is a second cross beam reserved between the other ends of the two side guards. A backlight module is fixed on one side of the second cross beam close to the front of the mobile phone. A second polarizer, a liquid crystal screen, a first polarizer, a glue board, and tempered glass are sequentially arranged on the side of the backlight module away from the second cross beam; a first fixed cross beam is fixed at one end of the installation inner frame close to the top of the mobile phone by screws; and a top cover for wrapping the end and corners of the tempered glass is clamped on the side of the first fixed cross beam. Coaxial and equal-sized strip-shaped through holes are opened in the middle of the top cover and the first fixed cross beam, and the same dust-proof duct is clamped in the two strip-shaped through holes; a front camera module is slidably connected in the dust-proof duct; a lifting drive mechanism and a blowing mechanism are arranged on the upper surface of the second cross beam close to the pipe orifice of the dust-proof duct; and the lifting drive mechanism includes a bearing hole opened in the middle of the second cross beam, and a compound gear is rotatably connected in the bearing hole. The compound gear includes a coaxial worm wheel disc and a small gear. A rack top rod meshing with the small gear is fixed on one side of the front camera module close to the compound gear; and a blowing head with a pipe orifice facing the gap is arranged at the pipe orifice of the rack top rod close to the dust-proof duct.

[0009] As a preferred technical solution of the present invention, rounded corners are provided at the four corners of the tempered glass, and arc-shaped holes concentric with the rounded corners are opened at the four corners of the tempered glass; a dust-proof net is pasted on the lower surface of the arc-shaped holes, and a speaker module and a recording module are installed below the dust-proof net.

[0010] As a preferred technical solution of the present invention, concave card slots penetrating through both ends of the mobile phone are opened in the middle of the two long side surfaces of the tempered glass, and anti-detachment convex ribs bent towards the middle are reserved at the edges of the two side guards of the installation inner frame close to the tempered glass. The anti-detachment convex ribs are used for clamping and filling the concave card slots, so that the tempered glass can be tightly clamped in the installation inner frame; the bottom of the concave card slot is subjected to roughening treatment.

[0011] As a preferred technical solution of the present invention, a flexible circuit board is reserved at one end of the liquid crystal screen away from the front camera module, and a lower cover is fixed at one end of the installation inner frame away from the top cover; rectangular card slots are opened on the opposite sides of the two side guards, and anti-retreat teeth are fixed in the rectangular card slots. The same step-tightening strut is clamped between the two opposite anti-retreat teeth, and right-angled engagement teeth engaged with the anti-retreat teeth are reserved at both ends of the step-tightening strut; an arc-shaped groove is reserved on one side of the middle of the step-tightening strut close to the backlight module, and a buffer spring is fixed at the bottom of the arc-shaped groove. A pressing plate is fixed on one side of the buffer spring close to the backlight module; for fixing the backlight module and the film layer fixed on its surface; the lower cover is used to protect the bottom end of the tempered glass and the two corners at its bottom.

[0012] As a preferred technical solution of the present invention, a C-shaped shaft rod holder is fixed in the middle of the side of the second cross beam away from the first fixed cross beam, and the opening of the C-shaped shaft rod holder faces the dust-proof duct; a wear-resistant slip ring is embedded at one end of the C-shaped shaft rod holder away from the second cross beam; a short shaft is reserved in the middle of the composite gear, and a crankshaft is fixed at one end of the short shaft close to the wear-resistant slip ring; the other end of the crankshaft is rotatably sleeved in the wear-resistant slip ring; an anti-twist rib is reserved on the circumferential outer wall of the rack ejector rod, and an anti-twist clamping rail for clamping the anti-twist rib is fixed on the upper surface of the second cross beam near the pinion; to tightly press the rack ejector rod against the side of the pinion of the composite gear to ensure that the two are always in a meshing state; an electric motor fixing bracket is also fixed near the middle of the side of the second cross beam, and a servo drive motor is fixed on the upper surface of the electric motor fixing bracket; a worm gear sleeve is fixed at the top end of the output shaft of the servo drive motor; the worm gear sleeve meshes with the worm wheel disc on the composite gear; the diameter of the worm wheel disc is larger than the diameter of the pinion.

[0013] As a preferred technical solution of the present invention, the blowing mechanism further includes a connecting rod rotatably sleeved on the two journal shafts of the crankshaft; and arc-shaped clamping grooves are opened near both ends on the side of the second cross beam close to the back of the mobile phone, and two arc-shaped clamping grooves respectively clamp piston air barrels with opposite openings and a cylindrical barrel structure; the structures on the two piston air barrels are the same, and an anti-twist piston plate is slidably connected inside the piston air barrel, and an annular groove is opened on the circumferential outer wall of the anti-twist piston plate, and a one-way sealing ring is sleeved in the annular groove; so that the anti-twist piston plate can intake air into the barrel when moving towards the barrel mouth, otherwise it cannot exhaust air; a plurality of anti-deviation abutting blocks are fixed near the edge of the circumference on the side of the anti-twist piston plate close to the barrel mouth; one side of the anti-deviation abutting block is attached to the inner wall of the piston air barrel; one-way air outlet valves are embedded at the bottom of the two piston air barrels, and air guide pipes are sleeved at the air outlet ports of the one-way air outlet valves; the two air guide pipes are respectively fixedly sleeved at the air inlet ends of the corresponding blowing heads at the ends away from the one-way air outlet valves; the radii of the two journal shafts of the crankshaft are equal to the radius of the worm wheel disc, and a nozzle fixing block for fixing the two blowing heads is fixed near the front camera module on the rack ejector rod.

[0014] As a preferred technical solution of the present invention, the two blowing heads are symmetrically distributed about the center line of the dust-proof duct; and the nozzle diameters of the two blowing heads are smaller than the diameter of the air guide pipe, and a strip-shaped notch is opened in the middle of the side of the first fixed cross beam close to the backlight module, and one end of the dust-proof duct away from the top clamping cover is clamped in the strip-shaped notch.

[0015] As a preferred technical solution of the present invention, a wire hole is provided near the middle on the side surface of the first fixed cross beam; rectangular sunk grooves are provided near both ends on the side of the first fixed cross beam close to the top clamping cover, and through holes are provided at the bottoms of the two rectangular sunk grooves; docking blocks extending into the rectangular sunk grooves are reserved near both ends on the inner arc side of the top clamping cover, and self-locking studs passing through the through holes are fixed on the surfaces of the two docking blocks; self-locking nuts are respectively screwed on the self-locking studs passing through the corresponding through holes; engaging grooves that are symmetric to each other are respectively reserved at one ends of the two side guards of the installation inner frame close to the top clamping cover; and the front view of the engaging groove is in an isosceles trapezoid structure; anti-disengagement tenons for clamping the engaging grooves are reserved near both ends on the outer arc side of the top clamping cover; the top clamping cover is made of a material with both toughness and rigidity; screw joints are reserved at one ends of the two side guards of the installation inner frame close to the first fixed cross beam, and the two screw joints are symmetric to each other and are located on the opposite sides of the two side guards; the connection structures at the two screw joints are the same, and an inclined surface is provided on the upper surface of the screw joint, and a first inclined hole is provided on the inclined surface, and an inclined screw hole concentric with the first inclined hole is provided on the vertical side surface of the corresponding first fixed cross beam; through the provided inclined screw hole, the installation can be more convenient and can also play a certain role in oblique tension; with the cooperation of the provided anti-disengagement tenons and docking blocks, the top clamping cover can be tightly fixed on the first fixed cross beam and the installation inner frame, improving the stability of the device.

[0016] As a preferred technical solution of the present invention, a vibration mechanism is further provided on the surface of the first bottom cross beam on the side close to the back of the mobile phone, and the vibration mechanism includes two mounting brackets fixed on the first bottom cross beam. On the sides of the two mounting brackets away from the first bottom cross beam, channel-shaped slide rails with the same opening direction and parallel to each other are respectively fixed. Convex platform sliders are slidably connected in the chutes of the two channel-shaped slide rails. Pulling spring springs are fixed on the opposite sides of the two convex platform sliders, and the same high-frequency motor is fixed between the two pulling spring springs; an eccentric block is fixed at the top end of the output shaft of the high-frequency motor; permanent magnets are embedded on the opposite sides of the two convex platform sliders, and electromagnets are fixed at the ends of the two channel-shaped slide rails away from each other; after the electromagnets are energized, they attract the corresponding permanent magnets; limiting stop bars are fixed at the bottoms of the ends of the two channel-shaped slide rails close to each other; through such a setting, the tightening degree of the two pulling spring springs can be changed by controlling the suction force of the electromagnets, and then the vibration intensity can be changed.

[0017] As a preferred technical solution of the present invention, a spring piece is fixed on the outer wall of the high-frequency motor on the side close to the back of the mobile phone, and the spring piece is fixed on the inner wall of the back of the mobile phone; improving the vibration perception effect and reducing the impact on internal components.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In the solution of the present application:

[0020] 1. To solve the problems in the prior art that the front camera occupies the screen area and it is easy to violate the right of portrait, the present application is provided with a lifting drive mechanism and a matching hidden front camera module, which can hide the front camera module inside the top card cover when front shooting is not required. With a blowing head that can blow air into the gap between the front camera module and the dust-proof duct, when the front camera module is ejected and retracted, the dust blocking the gap can be timely cleaned from the inside out, effectively preventing blockage during entry and exit;

[0021] 2. To solve the problem in the prior art that when a mobile phone drops to the ground, the main screen is easily broken due to concentrated stress, the present application is provided with arc-shaped holes at the four corners of the tempered glass. When in use, if the mobile phone accidentally drops at the corner, it will not cause a through fracture on the surface of the mobile phone screen, playing a role in buffering and releasing stress concentration. Even if a destructive collision occurs, it will not cause a fractured crack on the main screen, but only cause a fracture at the corner, so that the emergency use of the mobile phone will not be affected in a short time;

[0022] 3. By providing a concave card slot on the side of the tempered glass and a matting and light-blocking treatment process, and cooperating with a side guard plate tightly clamped in the concave card slot, the strip-shaped light on the side of the backlight module can be prevented from emitting from the side, effectively preventing the occurrence of light leakage. Also, the four sides of the tempered glass are more tightly engaged, making it more difficult for dust to enter the interior;

[0023] 4. By setting it like this, when the lifting drive mechanism is started, the blowing mechanism can be driven to operate. Moreover, since the journal radius of the crankshaft becomes larger, the two piston air barrels can generate a larger stroke, thereby increasing the wind pressure and improving the dust removal effect. The wind power during dust removal can also have a heat dissipation effect on the internal heat-generating parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an overall structural schematic diagram of a modular liquid crystal display module provided by the present application;

[0025] Figure 2 is a front structural schematic diagram of a modular liquid crystal display module provided by the present application;

[0026] Figure 3 is an exploded structural schematic diagram of a modular liquid crystal display module provided by the present application;

[0027] Figure 4 is a three-dimensional structural schematic diagram of the tempered glass in a modular liquid crystal display module provided by the present application;

[0028] Figure 5 is an overall structural schematic diagram of the vibration mechanism in a modular liquid crystal display module provided by the present application;

[0029] Figure 6 Schematic diagram of the structure after the front camera module extends out in a modular liquid crystal display module provided by the present application;

[0030] Figure 7 Overall assembly structure schematic diagram of the lifting drive mechanism in a modular liquid crystal display module provided by the present application;

[0031] Figure 8 Schematic diagram of the other side structure of the lifting drive mechanism in a modular liquid crystal display module provided by the present application;

[0032] Figure 9 Front view of the back of the vibration mechanism and the lifting drive mechanism in a modular liquid crystal display module provided by the present application;

[0033] Figure 10 A modular liquid crystal display module provided by the present application Figure 9 Schematic diagram of the sectional structure along line A-A;

[0034] Figure 11 A modular liquid crystal display module provided by the present application Figure 10 Enlarged structure schematic diagram at position B.

[0035] Markings in the figure:

[0036] 1. Installation inner frame; 101. Bottom cross beam one; 102. Clamping groove; 103. Screw joint; 2. C-shaped shaft rod holder; 3. Lifting drive mechanism; 301. Crankshaft; 302. Rack ejector rod; 303. Compound gear; 304. Anti-twist clamping rail; 305. Motor fixing bracket; 306. Servo drive motor; 4. Top clamping cover; 401. Strip-shaped perforation; 402. Docking block; 403. Anti-disengagement tenon; 5. Front camera module; 6. Dust-proof duct;

[0037] 7. Fixed cross beam one; 701. Inclined screw hole; 702. Through hole; 703. Strip-shaped notch; 704. Wire hole; 705. Rectangular sunk groove; 8. Blowing mechanism; 801. Nozzle fixing block; 802. Blowing head; 803. Piston air barrel; 804. Connecting rod; 805. Air duct; 9. Cross beam two; 901. Arc-shaped clamping groove;

[0038] 10. Extrusion plate; 11. Step-by-step tight strut; 1101. Right-angle engaging teeth; 12. Rectangular clamping groove; 13. Anti-reverse clamping teeth;

[0039] 14. Vibration mechanism; 1401. Mounting bracket; 1402. Grooved slide rail; 1403. High-frequency motor; 1404. Tension spring; 1405. Spring piece; 1406. Eccentric block; 1407. Convex slider; 1408. Electromagnet; 1409. Limit bar

[0040] 15. Flexible printed circuit board; 16. Lower cover; 17. Backlight module; 18. Tempered glass; 181. Arc-shaped hole; 182. Concave card slot; 19. Rubber plate; 20. Polarizer one; 21. Liquid crystal display screen; 22. Polarizer two Detailed implementation manners

[0041] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0042] As described in the background art, after a display module with a liftable camera has been used for a period of time, the camera will not move smoothly due to the blockage of the outlet gap

[0043] To solve this technical problem, the present invention provides a modular liquid crystal display module, which is applied to the field of mobile phone displays

[0044] Specifically, please refer to Figures 1-11, A modular liquid crystal display module specifically includes: an installation inner frame 1 with an overall ladder-shaped structure. The installation inner frame 1 includes two parallel side guard plates, and there is a first bottom cross beam 101 reserved at one end between the two side guard plates close to the bottom end of the mobile phone; there is a second cross beam 9 reserved between the other ends of the two side guard plates. A backlight module 17 is fixed on the side of the second cross beam 9 close to the front of the mobile phone. On the side of the backlight module 17 away from the second cross beam 9, a second polarizer 22, a liquid crystal screen 21, a first polarizer 20, a glue board 19, and a tempered glass 18 are arranged in sequence; one end of the installation inner frame 1 close to the top end of the mobile phone is fixed with a first fixed cross beam 7 by screws; and a top cover 4 for wrapping the end and corners of the tempered glass 18 is clamped on the side of the first fixed cross beam 7; strip-shaped through holes 401 with the same axis and the same size are opened in the middle of the top cover 4 and the first fixed cross beam 7, and the same dust-proof conduit 6 is clamped in the two strip-shaped through holes 401; a front camera module 5 is slidably connected in the dust-proof conduit 6; a lifting drive mechanism 3 and a blowing mechanism 8 are arranged on the upper surface of the second cross beam 9 close to the pipe orifice of the dust-proof conduit 6; and the lifting drive mechanism 3 includes a bearing hole opened in the middle of the second cross beam 9, and a compound gear 303 is rotatably connected in the bearing hole. The compound gear 303 includes a coaxial worm wheel disc and a small gear. A rack top rod 302 meshing with the small gear is fixed on the side of the front camera module 5 close to the compound gear 303; and a blowing head 802 with a pipe orifice facing the gap is arranged at the end of the rack top rod 302 close to the pipe orifice of the dust-proof conduit 6.

[0045] Specifically, by setting the lifting drive mechanism 3 and the adapted hidden front camera module 5, the front camera module 5 can be hidden inside the top cover 4 when front shooting is not required. Cooperating with the blowing head 802 that can blow air towards the gap between the front camera module 5 and the dust-proof conduit 6, the dust blocking at this gap can be timely cleaned from the inside out while the front camera module 5 is pushed out and retracted, effectively preventing blockage during entry and exit.

[0046] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

[0047] It should be noted that, without conflict, the embodiments and the features and technical solutions in the embodiments of the present invention can be combined with each other.

[0048] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0049] Example 1, please refer to Figure 2 and Figure 4, a modular liquid crystal display module, the four corners of the tempered glass 18 are all rounded, and arc-shaped holes 181 concentric with the rounded corners are opened at the four corners of the tempered glass 18; a dust-proof net is pasted on the lower surface of the arc-shaped holes 181, and a speaker module and a recording module are installed below the dust-proof net; through the arc-shaped holes 181 opened at the four corners of the tempered glass 18, when in use, if the corner of the mobile phone accidentally falls to the ground, it will not cause a through-type fracture on the surface of the mobile phone screen, playing a role in buffering and releasing stress concentration. Even if a destructive collision occurs, it will not cause a fragmented crack on the main body of the screen, but only cause the corner to break, so that the emergency use of the mobile phone is not affected in a short time.

[0050] Example 2 further optimizes a modular liquid crystal display module provided in Example 1. Specifically, as Figure 6 , Figures 10-11 shown, concave card slots 182 penetrating both ends of the mobile phone are opened in the middle of the two long side surfaces of the tempered glass 18, and anti-detachment convex ribs bent towards the middle are reserved at the edges of the two side guards of the installation inner frame 1 close to the tempered glass 18. The anti-detachment convex ribs are used to clamp and fill the concave card slots 182, so that the tempered glass 18 can be tightly clamped inside the installation inner frame 1; the bottom of the concave card slots 182 is subjected to matting treatment. Through the concave card slots 182 on the side surface of the tempered glass 18 and the matting light-blocking treatment process, combined with the side guards tightly clamped in the concave card slots 182, it is possible to prevent the strip-shaped light on the side of the backlight module 17 from emitting from the side, effectively preventing the occurrence of light leakage, and also making the four sides of the tempered glass 18 bite more tightly, making it more difficult for dust to enter the interior.

[0051] Refer to Figures 3-4 , a flexible circuit board 15 is reserved at one end of the liquid crystal screen 21 away from the front camera module 5, and a lower cover 16 is fixed at one end of the installation inner frame 1 away from the top cover 4; rectangular card slots 12 are opened on the opposite sides of the two side guards, and anti-retreat teeth 13 are fixed in the rectangular card slots 12. The same step-tightening strut 11 is clamped between the two opposite anti-retreat teeth 13, and right-angle engaging teeth 1101 that engage with the anti-retreat teeth 13 are reserved at both ends of the step-tightening strut 11; an arc-shaped groove is reserved on one side of the middle of the step-tightening strut 11 close to the backlight module 17, and a buffer spring is fixed at the bottom of the arc-shaped groove. A pressing plate 10 is fixed on the side of the buffer spring close to the backlight module 17; used to fix the backlight module 17 and the film layer fixed on its surface; the lower cover 16 is used to protect the bottom end of the tempered glass 18 and the two bottom corners.

[0052] Refer to Figures 8-10, a C-shaped shaft rod holder 2 is fixed in the middle of the side of the second cross beam 9 away from the fixed first cross beam 7, and the opening of the C-shaped shaft rod holder 2 faces the dust-proof conduit 6; a wear-resistant slip ring is embedded at one end of the C-shaped shaft rod holder 2 away from the second cross beam 9; a short shaft is reserved in the middle of the compound gear 303, and a crankshaft 301 is fixed at one end of the short shaft close to the wear-resistant slip ring; the other end of the crankshaft 301 is rotatably sleeved in the wear-resistant slip ring; anti-twist rib ribs are reserved on the circumferential outer wall of the rack ejector rod 302, and an anti-twist card rail 304 for clamping the anti-twist rib ribs is fixed on the upper surface of the second cross beam 9 near the small gear; used to tightly press the rack ejector rod 302 against the side of the small gear of the compound gear 303 to ensure that the two are always in a meshing state; an electric motor fixing bracket 305 is also fixed near the middle of the side of the second cross beam 9, and a servo drive motor 306 is fixed on the upper surface of the electric motor fixing bracket 305; a worm gear sleeve is fixed at the top of the output shaft of the servo drive motor 306; the worm gear sleeve meshes with the worm wheel disc on the compound gear 303; the diameter of the worm wheel disc is larger than the diameter of the small gear; by setting a driving method in which the small gear is indirectly driven by the worm gear sleeve, not only can it prevent the front camera module 5 from being non-operatively withdrawn due to the shaking of the mobile phone during the shooting process, achieving a certain self-locking effect, but also the quickly rotating servo drive motor 306 is easier to control, bringing convenience to the design of the corresponding mobile phone program.

[0053] Further, the blowing mechanism 8 further includes a connecting rod 804 rotatably sleeved on two journal necks of the crankshaft 301; and on one side of the second crossbeam 9 close to the back of the mobile phone and near both ends, arc-shaped clamping grooves 901 are respectively formed. Two piston air barrels 803 with opposite openings and a cylindrical barrel structure are respectively clamped in the two arc-shaped clamping grooves 901; the structures on the two piston air barrels 803 are the same, and an anti-twist piston plate is slidably connected inside the piston air barrel 803. An annular groove is formed on the circumferential outer wall of the anti-twist piston plate, and a one-way sealing ring is sleeved in the annular groove; so that the anti-twist piston plate can intake air into the barrel when moving towards the barrel opening, and vice versa, it cannot exhaust air; on one side of the anti-twist piston plate close to the barrel opening and near the circumferential edge, a plurality of anti-deviation abutting blocks are fixed; one side of the anti-deviation abutting block is attached to the inner wall of the piston air barrel 803; through such a setting, the anti-twist piston plate can be prevented from skewing during the piston operation. One-way air outlet valves are respectively embedded at the bottoms of the two piston air barrels 803, and air guide pipes 805 are respectively sleeved at the air outlet ports of the one-way air outlet valves; the two ends of the two air guide pipes 805 far from the one-way air outlet valves are respectively fixedly sleeved on the intake end pipe orifices of the corresponding blowing heads 802; the radii of the two journal necks of the crankshaft 301 are equal to the radius of the worm wheel disc, and a nozzle fixing block 801 for fixing the two blowing heads 802 is fixed at the position of the rack ejector rod 302 close to the front camera module 5; through such a setting, the blowing mechanism 8 can be driven to operate while the lifting drive mechanism 3 is started, and since the radius of the journal neck of the crankshaft 301 becomes larger, the two piston air barrels 803 can generate a larger stroke, thereby increasing the air pressure and improving the dust removal effect. The wind generated during dust removal can also have a heat dissipation effect on the internally heated parts; the two blowing heads 802 are symmetrically distributed about the center line of the dust-proof duct 6; and the nozzle diameters of the two blowing heads 802 are smaller than the diameter of the air guide pipe 805. A strip-shaped notch 703 is formed in the middle of one side of the fixed crossbeam 7 close to the backlight module 17, and one end of the dust-proof duct 6 far from the top clamping cover 4 is clamped in the strip-shaped notch 703; this can improve the uniformity of blowing, increase the air pressure, and increase the wind speed at the air flow ejection outlet to enhance the dust removal effect.

[0054] Embodiment 3 further optimizes a modular liquid crystal display module provided in the above embodiments, such as Figure 3 、 Figure 4 、 Figure 9 、 Figure 10As shown in the figure, a wire hole 704 is opened near the middle on the side of the fixed crossbeam 7; rectangular sunk grooves 705 are opened near both ends on the side of the fixed crossbeam 7 close to the top clamping cover 4, and through holes 702 are opened at the bottom of both rectangular sunk grooves 705; docking blocks 402 extending into the rectangular sunk grooves 705 are reserved near both ends on the inner arc side of the top clamping cover 4, and self-locking studs passing through the through holes 702 are fixed on the surfaces of both docking blocks 402; self-locking nuts are respectively screwed on the self-locking studs passing through the corresponding through holes 702; at one end of the two side guards of the installation inner frame 1 close to the top clamping cover 4, symmetrically arranged engaging grooves 102 are respectively reserved; and the front view of the engaging groove 102 is an isosceles trapezoid mechanism; anti-disengagement tenons 403 for engaging the engaging grooves 102 are reserved near both ends on the outer arc side of the top clamping cover 4; the top clamping cover 4 is made of a material with both toughness and rigidity; at one end of the two side guards of the installation inner frame 1 close to the fixed crossbeam 7, screw joints 103 are reserved, and the two screw joints 103 are symmetrically arranged and located on the opposite sides of the two side guards; the connection structures at the two screw joints 103 are the same, and the upper surface of the screw joint 103 is provided with an inclined surface, and an inclined hole 1 is opened on the inclined surface, and an inclined screw hole 701 concentric with the inclined hole 1 is opened on the vertical side surface of the corresponding fixed crossbeam 7; through the provided inclined screw hole 701, the installation can be more convenient and can also play a certain role in oblique tension; with the cooperation of the provided anti-disengagement tenons 403 and docking blocks 402, the top clamping cover 4 can be tightly fixed on the fixed crossbeam 7 and the installation inner frame 1, improving the stability of the device.

[0055] Further, a vibration mechanism 14 is further provided on the surface of the bottom crossbeam 101 close to the back of the mobile phone, and the vibration mechanism 14 includes two mounting brackets 1401 fixed on the bottom crossbeam 101. On the side of the two mounting brackets 1401 away from the bottom crossbeam 101, channel-shaped slide rails 1402 with the same opening direction and parallel to each other are respectively fixed. In the sliding grooves of the two channel-shaped slide rails 1402, convex platform sliders 1407 are slidably connected. On the opposite sides of the two convex platform sliders 1407, tension spring springs 1404 are respectively fixed, and a same high-frequency motor 1403 is fixed between the two tension spring springs 1404; at the top of the output shaft of the high-frequency motor 1403, an eccentric block 1406 is fixed; on the opposite sides of the two convex platform sliders 1407, permanent magnets are respectively embedded, and at the ends of the two channel-shaped slide rails 1402 away from each other, electromagnets 1408 are respectively fixed; after the electromagnets 1408 are energized, they attract the corresponding permanent magnets; at the bottom of the ends of the two channel-shaped slide rails 1402 close to each other, limiting bars 1409 are respectively fixed; by setting like this, the tension degree of the two tension spring springs 1404 can be changed by controlling the suction force of the electromagnets 1408, and then the vibration intensity can be changed.

[0056] A spring piece 1405 is fixed on the outer wall of the high-frequency motor 1403 close to the back of the mobile phone, and the spring piece 1405 is fixed on the inner wall of the back of the mobile phone; improving the vibration perception effect and reducing the influence on internal components

[0057] The usage process of a modular liquid crystal display module provided by the present invention is as follows:

[0058] Working principle: When installing this device, first fix the two pairs of step-tightening struts 11 used to fix the backlight module 17 on the installation inner frame 1, and then install the backlight module 17. When installing the backlight module 17, the side of the two side guards of the installation inner frame 1 with anti-detachment convex ribs faces the front, and then layer by layer, the second polarizer 22, the liquid crystal screen 21, the first polarizer 20 and the rubber plate 19 are pasted on; finally, the tempered glass 18 is clamped between the two anti-detachment convex ribs, and then turn it over and press the two step-tightening struts 11; then install the first fixed crossbeam 7, the top cover 4 and the bottom cover 16 in sequence; when the front camera module 5 does not need to be used for front shooting, it is hidden inside the top cover 4. When the front camera module 5 needs to be ejected and retracted, start the servo drive motor 306 in the lifting drive mechanism 3. At this time, the front camera module 5 can be slowly pushed out by the small gear cooperating with the rack ejector rod 302 meshing with it. At the same time, when the lifting drive mechanism 3 is started, it drives the blowing mechanism 8 to operate, cooperating with the blowing head 802 that can blow air into the gap between the front camera module 5 and the dust-proof duct 6. Moreover, since the journal radius of the crankshaft 301 becomes larger, the two piston air barrels 803 can generate a larger stroke, thereby increasing the air pressure and improving the dust removal effect. The wind power after dust removal can also have a heat dissipation effect on the internal heat-generating parts.

[0059] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, which can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0060] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. The preferred embodiments of the present invention are shown in the drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures made by using the content of the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, are similarly within the scope of the patent protection of the present invention.

Claims

1. A modular liquid crystal display module, characterized in that: The invention comprises an installation inner frame (1), wherein the installation inner frame (1) comprises two mutually parallel side guard plates, and a bottom crossbeam (101) is reserved at one end between the two side guard plates near the bottom end of the mobile phone; a second crossbeam (9) is reserved between the other ends of the two side guard plates, a backlight module (17) is fixed on the side of the second crossbeam (9) near the front of the mobile phone, and a second polarizing plate (22), a liquid crystal screen (21), a first polarizing plate (20), a plastic plate (19) and a tempered glass (18) are arranged in sequence on the side of the backlight module (17) away from the second crossbeam (9); a fixed crossbeam (7) is fixed at one end of the installation inner frame (1) near the top end of the mobile phone by screws; and a top card cover (4) for wrapping the end and corner of the tempered glass (18) is clamped on the side of the fixed crossbeam (7); a space between the top card cover (4) and the first fixed crossbeam (7) is provided. Both are provided with coaxial and equal-sized strip-shaped through-holes (401), and a dust-proof duct (6) is clamped in the two strip-shaped through-holes (401); a front camera module (5) is slidably connected in the dust-proof duct (6); a lifting drive mechanism (3) and a blowing mechanism (8) are provided on the upper surface of the second crossbeam (9) near the pipe opening of the dust-proof duct (6); the lifting drive mechanism (3) comprises a bearing hole provided in the middle of the second crossbeam (9), and a composite gear (303) is rotatably connected in the bearing hole, the composite gear (303) comprises a coaxial worm wheel and a pinion, and a rack top rod (302) meshing with the pinion is fixed on one side of the front camera module (5) near the composite gear (303); and a blowing head (802) is provided on the rack top rod (302) near the pipe opening of the dust-proof duct (6) with the pipe opening facing the gap; A short shaft is reserved in the middle of the composite gear (303), and a crankshaft (301) is fixed to one end of the short shaft close to the wear-resistant slip ring; The blowing mechanism (8) further comprises a connecting rod (804) rotatably sleeved on two journals of the crankshaft (301); and arc-shaped clamping grooves (901) are provided on both ends of the side of the second crossbeam (9) close to the back of the mobile phone, and piston air barrels (803) with openings facing each other and in a cylindrical barrel structure are respectively clamped in the two arc-shaped clamping grooves (901); the two piston air barrels (803) have the same structure, and an anti-twist piston plate is slidably connected inside the piston air barrel (803), and an annular groove is provided on the circumferential outer wall of the anti-twist piston plate, and a one-way sealing ring is sleeved in the annular groove; the anti-twist piston plate is provided on the circumferential outer wall of the barrel mouth ... A plurality of anti-deflection blocks are fixed at the edge; one side of the anti-deflection blocks is attached to the inner wall of the piston air barrel (803); a one-way air outlet valve is embedded in the barrel bottom of the piston air barrel (803), and an air guide pipe (805) is sleeved at the air outlet of the one-way air outlet valve; one end of the two air guide pipes (805) away from the one-way air outlet valve is respectively fixedly sleeved on the air inlet end pipe opening of the corresponding blowing head (802); the radius of the two journals of the crankshaft (301) is equal to the radius of the worm wheel, and a nozzle fixing block (801) for fixing the two blowing heads (802) is fixed near the front camera module (5) on the rack top rod (302).

2. A modular liquid crystal display module according to claim 1, characterized in that: The four corners of the tempered glass (18) are all rounded, and the four corners of the tempered glass (18) are all provided with arc-shaped holes (181) concentric with the rounded corners; a dustproof net is attached to the lower surface of the arc-shaped hole (181), and a speaker module and a recording module are installed below the dustproof net.

3. A modular liquid crystal display module according to claim 1, characterized in that: The middle parts of the two long sides of the tempered glass (18) are provided with concave card slots (182) penetrating the two ends of the mobile phone, and the two side guard plates of the mounting inner frame (1) are provided with anti-slip ridges bent toward the middle at the edges of one side close to the tempered glass (18), and the anti-slip ridges are used to clamp and fill the concave card slots (182), so that the tempered glass (18) can be tightly clamped in the mounting inner frame (1); the bottom of the concave card slots (182) is roughened.

4. A modular liquid crystal display module according to claim 1, characterized in that: A flexible circuit board (15) is reserved at one end of the liquid crystal screen (21) away from the front camera module (5), and a lower card cover (16) is fixed to one end of the mounting inner frame (1) away from the top card cover (4); a rectangular card slot (12) is opened on the opposite sides of the two side guard plates, and a stopper tooth (13) is fixed in each of the rectangular card slots (12); a same step-by-step tightening support rod (11) is clamped between the two opposite stopper teeth (13), and right-angled engaging teeth (1101) that engage with the stopper tooth (13) are reserved at both ends of the step-by-step tightening support rod (11); an arched groove is reserved at the middle of the step-by-step tightening support rod (11) on one side close to the backlight module (17), and a buffer spring is fixed at the bottom of the arched groove, and an extrusion plate (10) is fixed on the side of the buffer spring close to the backlight module (17).

5. The modular liquid crystal display module according to claim 1, characterized in that: A C-shaped shaft rod frame (2) is fixed to the middle of one side of the second cross beam (9) away from the fixed first cross beam (7), and the opening of the C-shaped shaft rod frame (2) faces the dustproof duct (6); a wear-resistant slip ring is embedded in one end of the C-shaped shaft rod frame (2) away from the second cross beam (9); the other end of the crankshaft (301) is rotatably sleeved in the wear-resistant slip ring; the circumferential outer wall of the rack top rod (302) is reserved with anti-torsion ribs, and an anti-torsion rail (304) for clamping the anti-torsion ribs is fixed to the upper surface of the second cross beam (9) near the pinion gear; a motor fixing frame (305) is also fixed to the side of the second cross beam (9) near the middle, and a servo drive motor (306) is fixed to the upper surface of the motor fixing frame (305); a worm sleeve is fixed to the top end of the output shaft of the servo drive motor (306); the worm sleeve is meshed with the worm wheel disk on the composite gear (303); the diameter of the worm wheel disk is larger than the diameter of the pinion gear.

6. A modular liquid crystal display module according to claim 5, characterized in that: The two blowing heads (802) are centrally symmetrically distributed about the center line of the dustproof duct (6); and the nozzle diameters of the two blowing heads (802) are smaller than the diameter of the air guide duct (805); a strip-shaped notch (703) is provided in the middle of one side of the fixed cross beam (7) close to the backlight module (17); and one end of the dustproof duct (6) away from the top card cover (4) is clamped in the strip-shaped notch (703).

7. The modular liquid crystal display module according to claim 1, characterized in that: A wire hole (704) is provided near the middle of the side of the fixed crossbeam (7); a rectangular groove (705) is provided near both ends of a side of the fixed crossbeam (7) near the top card cover (4), and through holes (702) are provided at the bottom of the two rectangular grooves (705); docking blocks (402) extending into the rectangular grooves (705) are reserved near both ends of the inner arc side of the top card cover (4), and self-locking studs passing through the through holes (702) are fixed on the surfaces of the two docking blocks (402); the self-locking studs pass through the corresponding through holes (702) and are respectively screwed with self-locking nuts; and mutually symmetrical engaging grooves (102) are reserved at one end of the two side guard plates of the mounting inner frame (1) near the top card cover (4); The front view of the engaging groove (102) is an isosceles trapezoidal structure; both ends of the top engaging cover (4) are reserved near the outer arc side for anti-slip tenons (403) for engaging the engaging groove (102); the top engaging cover (4) is made of a material having both toughness and rigidity; the two side guard plates of the mounting inner frame (1) are reserved with screw joints (103) at one end near the fixed cross beam (7), and the two screw joints (103) are symmetrical to each other and are located on opposite sides of the two side guard plates; the connection structures at the two screw joints (103) are the same, and the upper surface of the screw joint (103) is provided with an inclined surface, and an inclined hole (1) is opened on the inclined surface, and an inclined screw hole (701) which is concentric with the inclined hole is opened on the vertical side surface of the corresponding fixed cross beam (7).

8. The modular liquid crystal display module according to claim 1, characterized in that: A vibration mechanism (14) is also provided on a side of the surface of the bottom cross beam (101) close to the back of the mobile phone, and the vibration mechanism (14) comprises two mounting frames (1401) fixed on the bottom cross beam (101), and grooved slide rails (1402) with openings in the same direction and parallel to each other are respectively fixed on the sides of the two mounting frames (1401) away from the bottom cross beam (101), and the slide grooves of the two grooved slide rails (1402) are both slidably connected with boss slide blocks (1407), and tension springs are fixed on opposite sides of the two boss slide blocks (1407). Spring (1404), and the same high-frequency motor (1403) is fixed between the two tension springs (1404); an eccentric block (1406) is fixed to the top of the output shaft of the high-frequency motor (1403); permanent magnets are embedded on the opposite sides of the two boss sliders (1407), and electromagnets (1408) are fixed on the ends of the two grooved slide rails (1402) that are away from each other; the electromagnets (1408) are attracted to the corresponding permanent magnets after being energized; and a limit stop bar (1409) is fixed on the bottom of the grooves at the ends of the two grooved slide rails (1402) that are close to each other.

9. A modular liquid crystal display module according to claim 8, characterized in that: A spring sheet (1405) is fixed to a side of the outer wall of the high-frequency motor (1403) close to the back of the mobile phone, and the spring sheet (1405) is fixed to the inner wall of the back of the mobile phone.

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