A new type of single-lamp dual-pixel 3DLED display module

Abstract

A new type of single-lamp dual-pixel 3DLED display module includes an integrated panel provided with an LED single-lamp array, wherein the LED single-lamp array is composed of a plurality of symmetrically arranged groups of LED single-lamp, each group of LED single-lamp includes two groups of LED light-emitting pixels arranged on the left and right, and each group of LED light-emitting pixels includes three LED lamp beads of yellow, green and blue; the front surface of the LED single-lamp array is provided with left and right eye delay patches and polarizers in sequence, and a PCB board is provided at the rear of the LED integrated panel, and a driver chip is provided on the PCB board, and the driver chip is used to control the corresponding LED light-emitting pixels in the LED single-lamp array to emit light and display according to the set rules. Since the PCB board continues to generate heat during operation, an LED heat dissipation structure is also provided at the rear of the PCB board to maintain a constant temperature of the PCB board; this ensures that the spatial orientation of the video image is synchronized with the user's eyes, reduces the phenomenon of 3D dizziness during use, greatly reduces the possibility of dizziness, nausea and vomiting in the user, and improves the user's satisfaction.

Description

Technical Field

[0001] The invention relates to the field of 3D LED display, and in particular to a novel single-lamp dual-pixel 3D LED display module. Background Art

[0002] LED (Light Emitting Diode), also known as semiconductor electric light source or light-emitting diode, is also called semiconductor lamp. It is a filament-free electric light source that can directly convert electrical energy into light energy.

[0003] LED display module is a new type of imaging electronic device made of light-emitting diodes arranged in sequence. Due to its high brightness, wide viewing angle and long life, it is widely used in products such as outdoor advertising screens.

[0004] With the development of display technology, the application of LED display modules is becoming more and more widespread. LED display modules have also gradually developed from the previous 2D display to the current 3D display; 3DLED display modules use optical modulation components to enable the flat display to display the left and right eye images of the stereoscopic information to the left and right eyes of the viewer respectively, and then the viewer's brain can synthesize the two parallax images obtained to perceive the realization of stereoscopic display. Naked eye stereoscopic display gets rid of the glasses of glasses-type 3D, which improves the comfort of the viewer.

[0005] The inventor knows a 3D LED display device (201110400624.9), which includes an LED dot matrix display screen, wherein the front end of the odd-numbered columns of the LED dot matrix display screen is affixed with a left polarizing film, and the front end of the even-numbered columns of the LED dot matrix display screen is affixed with a right polarizing film, or the front end of the odd-numbered rows of the LED dot matrix display screen is affixed with a left polarizing film, and the front end of the even-numbered rows of the LED dot matrix display screen is affixed with a right polarizing film, and the polarization angles of the left polarizing film and the right polarizing film are 90 degrees to each other; in this way, The polarized light of video images A and B formed by the odd-numbered columns of lamp beads (or odd-numbered rows of lamp beads) and the even-numbered columns of lamp beads (or even-numbered rows of lamp beads) after passing through the polarizing film is orthogonal; the LED dot matrix display screen is internally installed with a control processing module that controls the odd-numbered columns and even-numbered columns of the LED dot matrix display screen, or the odd-numbered rows and even-numbered rows of lamp beads, to display different video signals, and the control processing module is connected to the left video signal and the right video signal, which are image signals captured by the left and right cameras at two different angles. After the video images captured by the left camera are processed by the control processing module, only the odd-numbered columns of lamp beads (or odd-numbered rows of lamp beads) of the LED dot matrix display screen are displayed, and after the video images captured by the right camera are processed by the control processing module, only the even-numbered columns of lamp beads (or even-numbered rows of lamp beads) of the LED dot matrix display screen are displayed, and because of the effect of the polarizing film, the video images captured by the two cameras are transmitted through the polarizing film as two images A and B with polarization lines of 90 degrees.

[0006] However, the above application still has some shortcomings. The LED dot matrix display screen uses circular sub-pixels, and three sub-pixels are located in the same frame to form a pixel. After setting a filter in front of the screen, color difference will occur, causing dizziness to the viewer. At the same time, the resolution of the LED dot matrix display screen is not high, which affects the image quality.

[0007] In addition, the heat dissipation of LED integrated panels generally relies on a radiator. The above application cannot meet the working conditions of LED integrated panels under different powers and can only control the operating temperature of the LED integrated panels within a larger range, causing the LED integrated panels to be frequently impacted by temperature changes, thereby affecting the luminous efficiency and life of the LED. Summary of the invention

[0008] The purpose of the present invention is to provide a novel single-lamp dual-pixel 3D LED display module, which further improves the display screen resolution and viewing comfort through the single-lamp dual-pixel LED single-lamp design form, combined with a control circuit and an integrated panel.

[0009] The present invention adopts the following technical solutions:

[0010] A novel single-lamp dual-pixel 3D LED display module comprises an integrated panel provided with an LED single-lamp array, wherein the LED single-lamp array is composed of a plurality of symmetrically arranged groups of LED single-lamp, each group of LED single-lamp comprises two groups of LED light-emitting pixels arranged on the left and right, and each group of LED light-emitting pixels comprises three LED lamp beads of yellow, green and blue; the front surface of the LED single-lamp array is provided with left and right eye delay patches and polarizers in sequence, a PCB board is provided at the rear of the LED integrated panel, a driving chip is provided on the PCB board, and the driving chip is used to control the corresponding LED light-emitting pixels in the LED single-lamp array to emit light and display according to the set rules; an LED heat dissipation structure is provided at the rear of the PCB board.

[0011] Furthermore, the LED single lamp includes a hollow lampshade and 6 LED lamp beads arranged on the rear end surface inside the lampshade, the 6 LED lamp beads form two groups of LED light-emitting pixels arranged symmetrically, and the rear end of the LED lamp beads is soldered to the corresponding position of the PCB board through pins.

[0012] Furthermore, the left and right eye delay patches include a left eye delay patch and a right eye delay patch; and the left eye delay patch and the right eye delay patch are respectively arranged on the front surface of each corresponding group of 3 lamp beads in the left row and the front surface of each group of 3 lamp beads in the right row.

[0013] Furthermore, the driving chip adopts a single-chip dual-drive scanning circuit.

[0014] Furthermore, an optical microcrystal mask is also provided on the front surface of the integrated panel, and the optical microcrystal mask is formed between the integrated panel and the left and right eye delay patches by means of glue injection; the optical microcrystal mask is a mixture of transparent epoxy resin crystal glue and glass beads.

[0015] Furthermore, the LED heat dissipation structure includes a heat dissipation aluminum plate arranged at the rear end of the LED integrated panel, and a temperature sensing mechanism is also arranged behind the heat dissipation aluminum plate; the temperature sensing mechanism includes a hollow heat-conducting tube arranged on the rear surface of the heat-conducting aluminum plate, and a heat expansion part is also concentrically arranged in the inner cavity of the heat-conducting tube; the heat expansion part is slidably connected with the heat-conducting tube; the heat expansion part includes an energy storage tube, the energy storage tube is in a cylindrical shape with an open rear end and a sealed front end, and a first flange is arranged at the rear end surface of the energy storage tube, and a plunger accommodating tube is also inserted at the rear end opening of the energy storage tube, and a second flange is arranged on the rear end surface of the plunger accommodating tube; the plunger accommodating tube is suspended at the rear of the energy storage tube and the front surface of the second flange of the plunger accommodating tube is close to the rear end surface of the first flange, and the outer surface of the plunger accommodating tube and the inner surface of the energy storage tube form a closed space; a plunger is also inserted in the plunger accommodating tube, and the rear end of the plunger protrudes from the rear end surface of the plunger accommodating tube, and the plunger accommodating tube is made of elastic rubber material; the closed space formed by the outer surface of the plunger accommodating tube and the inner surface of the energy storage tube is filled with paraffin.

[0016] Furthermore, a clearance hole is provided at the axis of the bottom cover of the heat-conducting tube, the energy storage tube is inserted into the clearance hole and is slidably connected to the bottom cover of the heat-conducting tube, the front end surface of the top cover of the heat-conducting tube is pressed against the rear end surface of the plunger, and a return spring is also sleeved on the outside of the energy storage tube, one end of the return spring is fixed to the rear part of the energy storage tube, and the other end is fixed to the rear end surface of the bottom cover of the heat-conducting tube.

[0017] Furthermore, a heat dissipation fin adjustment mechanism is also arranged at the rear of the heat-conducting cylinder, and the heat dissipation fin adjustment mechanism includes a variable conduction part and a heat dissipation part, and the variable conduction part is arranged at the rear of the heat-conducting cylinder; the variable conduction part includes a spiral sleeve and a variable heat-conducting fin; the spiral sleeve is sleeved outside the variable heat-conducting fin and the spiral sleeve is arranged concentrically with the top cover of the heat-conducting cylinder, and the variable heat-conducting fin includes a fixed fin eccentrically arranged with the top cover of the heat-conducting cylinder, the fixed fin is disc-shaped and is fixedly connected to the top cover of the heat-conducting cylinder through a concentrically arranged heat-conducting column, and a plurality of evenly spaced fixed fins are fixed to the rear of the heat-conducting column; rotating fins are inserted at the intervals between the evenly spaced fixed fins, the inner ends of the rotating fins are inserted at the intervals between the evenly spaced fixed fins, and the outer ends are fixed to the inner wall of the spiral sleeve.

[0018] Furthermore, a spiral groove is provided on the outer surface of the spiral sleeve, a cylindrical pin is arranged in the spiral groove, the cylindrical pin is arranged radially along the spiral sleeve, and the inner end of the cylindrical pin is slidably connected to the corresponding spiral groove.

[0019] Furthermore, a driving sleeve is fixed to the outer end of the cylindrical pin, and the bottom of the driving sleeve is penetrated by a guide rod through a heat-conducting tube top cover until it is fixedly connected to the energy storage tube. A through hole is opened on the heat-conducting tube top cover at the position corresponding to the guide rod, and the heat-conducting tube top cover is slidably connected to the guide rod.

[0020] In the present invention, by adopting a structure of six lamp beads in double rows in a single LED lamp, the pixel integration of the single LED lamp is improved, and the resolution and image quality are further improved;

[0021] By using an optical microcrystal mask, the viewing angle of the 3D LED display module is significantly widened, and the diffusion effect of the glass beads also increases the image fill rate of the dual-pixel LED lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the LED integrated panel of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the left and right eye delay patch of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a single LED lamp of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the lamp bead of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the optical microcrystalline mask of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the temperature sensing mechanism of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the heat dissipation fin adjustment mechanism of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the inner cavity of the heat-conducting tube of the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the first flange of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the spiral groove of the present invention;

[0032] Fig.11 It is a structural schematic diagram of the rotating fin of the present invention;

[0033] Fig.12 It is a schematic diagram of the structure of the electronic fan of the present invention.

[0034] In the figure, 1, LED integrated panel; 2, left and right eye delay patch; 3, polarizer; 4, temperature sensing mechanism; 5, heat dissipation fin adjustment mechanism; 6, heat conduction tube; 7, heat conduction tube cavity; 8, thermal expansion part; 9, energy storage tube; 10, reset spring; 11, first flange; 12, plunger accommodating tube; 13, plunger; 14, variable conduction part; 15, heat dissipation part; 16, spiral sleeve; 17, variable heat conduction fin; 18, fixed fin; 19, heat conduction column; 20, rotating fin; 21, spiral groove; 22, circular Pillar pin; 23. Drive sleeve; 24. Guide rod; 25. Heat dissipation fin; 26. Electronic fan; 27. Dovetail groove; 28. Dovetail pin; 29. ​​Second flange; 30. Make way hole; 31. Through hole; 32. Quick-connect structure; 33. Round end cover; 34. Guide hole; 35. Heat dissipation aluminum plate; 36. LED heat dissipation structure; 37. Left eye delay patch; 38. Right eye delay patch; 39. LED single lamp; 40. Lamp beads; 41. Optical microcrystalline mask. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0036] like Figures 1 to 12As shown, the novel single-lamp dual-pixel 3DLED display module described in the present invention includes an integrated panel 1 provided with an LED single-lamp array, the LED single-lamp array is composed of a plurality of symmetrically arranged groups of LED single-lamp, each group of LED single-lamp includes two groups of LED light-emitting pixels arranged on the left and right, and each group of LED light-emitting pixels includes three LED lamp beads of yellow, green and blue; the front surface of the LED single-lamp array is provided with left and right eye delay patches 2 and polarizers 3 in sequence, and the rear part of the LED integrated panel 1 is provided with a PCB board, and the PCB board is provided with a driving chip, and the driving chip is used to control the corresponding LED light-emitting pixels in the LED single-lamp array to emit light and display according to the set rules. Since the PCB board continuously generates heat during operation, an LED heat dissipation structure 36 is also provided at the rear of the PCB board to dissipate heat from the PCB board so that it is always within the set reasonable temperature range;

[0037] In order to improve the pixel integration of the LED single lamp 39 and further enhance the resolution and image quality; in the present invention, the LED single lamp 39 includes a hollow lampshade and 6 LED lamp beads 40 arranged on the rear end surface inside the lampshade, and the 6 LED lamp beads 40 form two groups of LED light-emitting pixels arranged symmetrically on the left and right, and each group of LED light-emitting pixels includes three LED lamp beads of yellow, green and blue; the rear end of the LED lamp bead 40 is soldered to the corresponding position of the PCB board through pins.

[0038] By arranging six lamp beads 40 in double rows in the same group of LED single lamps 39, two pixels exist in the same group of LED single lamps 39, further improving the pixel integration of the LED single lamps;

[0039] During use of the present invention, when a 2D image needs to be displayed, the two groups of LED pixels in each LED single lamp 39 display the same image at the same time; when a 3D image needs to be displayed, the two groups of LED pixels in each LED single lamp 39 display a left-handed image and a right-handed image respectively, that is, the image seen by the user's left eye and the image seen by the right eye need to be out of sync, so that the user can perceive the three-dimensional display through the synthesis of two parallax images in the brain.

[0040] When the 3D LED display module is in operation, the human eye captures the light emitted by the lamp beads 40, and the light is formed into an image through the human brain. In order to make the left and right eyes see the corresponding angles of the same object respectively, the three-dimensional display is perceived by synthesizing two parallax images in the brain.

[0041] In the present invention, the left and right eye delay patches 2 include a left eye delay patch 37 and a right eye delay patch 38; and the left eye delay patch 37 and the right eye delay patch 38 are respectively arranged in front of the corresponding left row of three lamp beads 40 and right row of three lamp beads 40.

[0042] In order to enable the present invention to effectively improve the 3D dual-image synchronization, signal transmission synchronization and image quality stability, and avoid 3D dizziness, in the present invention, the driving chip adopts a single-chip dual-drive scanning circuit to update the displayed video image in real time, ensuring that the spatial orientation of the video image is synchronized with the user's eyes, reducing the occurrence of 3D dizziness during use, greatly reducing the possibility of dizziness, nausea, and vomiting in the user, and improving the user's satisfaction.

[0043] In order to improve the contrast of 3D LED display modules and reduce reflections.

[0044] In this embodiment, an optical microcrystal mask 41 is also provided on the front surface of the integrated panel 1, and the optical microcrystal mask 41 is formed between the integrated panel 1 and the left and right eye delay patches 2 by means of glue injection. The optical microcrystal mask 41 is a mixture of transparent epoxy resin crystal glue and glass beads. By adding glass beads to the transparent epoxy resin crystal glue, the optical microcrystal mask 41 reaches a set hardness after curing, the epoxy resin crystal glue ensures the adhesion with the glass beads, and the glass beads ensure the hardness of the optical microcrystal mask 41. The glass beads have a diffusion effect on the light emitted by the LED lamp beads 40, thereby increasing the viewing angle of the 3DLED display module, and the diffusion effect of the glass beads also increases the image fill rate of the dual-pixel LED lamp beads 40.

[0045] During the operation of the 3D LED display module, a control unit arranged in the PCB board at the rear of the LED integrated panel 1 will generate a large amount of heat, and the PCB board can generally work normally in an environment of -20℃~65℃. As the PCB board is subjected to hot and cold shocks during the continuous temperature changes, the life of the 3D LED display module is greatly reduced.

[0046] In order to stabilize the working temperature of the PCB board and improve the service life of the 3D LED display module; in the present invention, the LED heat dissipation structure 36 includes a heat dissipation aluminum plate 35 arranged at the rear end of the LED integrated panel 1, and a temperature sensing mechanism 4 is also arranged behind the heat dissipation aluminum plate 35; during operation, the heat of the LED integrated panel 1 is transferred to the temperature sensing mechanism 4 through the heat dissipation aluminum plate 35, and the temperature sensing mechanism is used to convert the heat generated by the LED integrated panel 1 into a driving force to drive the heat dissipation fin adjustment mechanism 5 to change the heat dissipation amount;

[0047] In the present invention, a heat sink fin adjustment mechanism 5 is further provided behind the temperature sensing mechanism 4; during operation, the heat sink fin adjustment mechanism 5 is driven by the changing driving force of the temperature sensing mechanism 4 to adjust the heat dissipation of the LED heat dissipation structure 36, thereby realizing the ambient temperature adjustment of the LED integrated panel 1 during operation, which is beneficial to enhancing the service life of the LED integrated panel 1.

[0048] In order to convert the heat of the LED integrated panel 1 into a temperature signal more accurately; in the present invention, the temperature sensing mechanism 4 includes a heat dissipation aluminum plate 35 closely attached to the rear of the LED integrated panel 1, and a hollow heat-conducting tube 6 is further provided on the rear surface of the heat dissipation aluminum plate 35. The outer wall of the heat-conducting tube 6 is made of copper with good thermal conductivity. During operation, the heat of the LED integrated panel 1 is transferred to the outer wall of the heat-conducting tube 6 through the heat dissipation aluminum plate 35, and the heat is transferred to the inner cavity 7 of the heat-conducting tube through the temperature increase of the outer wall of the heat-conducting tube 6;

[0049] In order to enable the heat of the LED integrated panel 1 to be more accurately converted into a temperature signal; in the present invention, the heat-conducting tube cavity 7 is also concentrically provided with a heat expansion portion 8; the heat expansion portion 8 is slidably connected to the heat-conducting tube 6; the heat expansion portion 8 includes an energy storage tube 9, the energy storage tube 9 is in the shape of a tube with an open rear end and a sealed front end, and a first flange 11 is provided at the rear end face of the energy storage tube 9, and a plunger accommodating tube 12 is also inserted at the rear end opening of the energy storage tube 9, and a second flange 29 is provided at the rear end face of the plunger accommodating tube 12; the plunger accommodating tube 12 is suspended at the rear of the energy storage tube 9 and the front surface of the second flange 29 of the plunger accommodating tube 12 is in close contact with the rear end face of the first flange 11, and the outer surface of the plunger accommodating tube 12 and the inner surface of the energy storage tube 9 form a closed space; the plunger accommodating tube 12 A plunger 13 is also inserted into the cylinder 12, and the rear end of the plunger 13 protrudes from the rear end surface of the plunger accommodating cylinder 12. In this embodiment, the plunger accommodating cylinder 12 is made of a rubber material with a certain elasticity; the enclosed space formed by the outer surface of the plunger accommodating cylinder 12 and the inner surface of the energy storage cylinder 9 is filled with paraffin. During operation, the paraffin is melted by heat and changes from solid to liquid; the volume of the paraffin continues to expand, causing the pressure in the enclosed space to continue to increase; the pressure squeezes the plunger accommodating cylinder 12 from the outside, causing the volume inside the plunger cylinder 12 to continue to decrease, and continuously squeezing the front end surface of the plunger 13. Under the action of pressure, the plunger 13 and the plunger accommodating cylinder 12 produce relative movement, thereby realizing the conversion of the heat of the LED integrated panel 1 into driving force.

[0050] In order to realize the relative movement of the plunger 13 and the plunger accommodating tube 12 in the inner cavity 7 of the heat-conducting tube, in this embodiment, a clearance hole 30 is provided at the axis of the bottom cover of the heat-conducting tube 6, the energy storage tube 9 is inserted into the clearance hole 30 and is slidably connected with the bottom cover of the heat-conducting tube 6, the front end surface of the top cover of the heat-conducting tube 6 is pressed against the rear end surface of the plunger 13, and the outside of the energy storage tube 9 is also sleeved with a return spring 10, one end of the return spring 10 is fixed to the rear part of the energy storage tube 9, and the other end is fixed to the rear end surface of the bottom cover of the heat-conducting tube 6. When the return spring 10 is in a natural state, the plunger 13 is at the bottom of the plunger accommodating tube 12, that is, the plunger accommodating tube 12 external pressure is not enough to drive the plunger 13 and the energy storage cylinder 9 to move relative to each other; when the external pressure of the plunger accommodating cylinder 12 begins to increase and is sufficient to drive the plunger 13 and the energy storage cylinder 9 to move relative to each other, the inner cavity space of the plunger accommodating cylinder 12 is compressed, and the pressure drives the plunger 13, so that the plunger 13 has a tendency to move backward. Since the inner side of the top cover of the heat conductive cylinder 6 is pressed against the rear surface of the plunger 13, the energy storage cylinder 9 moves forward along the give way hole 30 under the push of the reaction force, and the return spring 10 is compressed to a spring pressure sufficient to balance the pressure from the inside of the energy storage cylinder 9 caused by the paraffin changing from solid to liquid.

[0051] In order to adjust the heat dissipation by driving the heat dissipation fin adjustment mechanism 5 to adjust the heat dissipation according to the different heat of the LED integrated panel 1, so as to adjust the ambient temperature of the LED integrated panel 1 during operation;

[0052] In the present embodiment, a heat dissipation fin adjustment mechanism 5 is further arranged at the rear of the heat-conducting cylinder 6, and the heat dissipation fin adjustment mechanism 5 includes a variable conduction part 14 and a heat dissipation part 15, and the variable conduction part 14 is arranged at the rear of the heat-conducting cylinder 6; the variable conduction part 14 includes a spiral sleeve 16 and a variable heat-conducting fin 17; the spiral sleeve 16 is sleeved outside the variable heat-conducting fin 17 and the spiral sleeve 16 is arranged concentrically with the top cover of the heat-conducting cylinder 6, and the variable heat-conducting fin 17 includes a fixed fin 18 eccentrically arranged with the top cover of the heat-conducting cylinder 6, and the fixed fin 18 is disc-shaped and fixedly connected with the top cover of the heat-conducting cylinder 6 through a concentrically arranged heat-conducting column 19. In order to increase the heat conduction effect, in the present embodiment, a plurality of evenly spaced fixed fins 18 are fixed at the rear of the heat-conducting column 19; a rotating fin 20 is inserted at the interval between the evenly spaced fixed fins 18, and the inner end of the rotating fin 20 is inserted at the interval between the evenly spaced fixed fins 18, and the outer end is fixed to the inner wall of the spiral sleeve 16;

[0053] During operation, the spiral sleeve 16 rotates along the axis, driving the rotating fins 20 to rotate around the axis, and the inner ends of the rotating fins 20 rotate around the eccentrically arranged fixed fins 18, and the contact area between the fixed fins 18 and the rotating fins 20 inserted in the gap between the fixed fins 18 changes. The change in contact area also leads to a change in heat dissipation.

[0054] In order to drive the spiral sleeve 16 to rotate along the axis, in the present invention, a spiral groove 21 is also opened on the outer surface of the spiral sleeve 16, and a cylindrical pin 22 is arranged in the spiral groove 21. The cylindrical pin 22 is arranged radially along the spiral sleeve 16, and the inner end of the cylindrical pin 22 is slidably connected with the corresponding spiral groove 21. During operation, the spiral sleeve 16 rotates along the curvature of the spiral groove 21 through the forward and backward movement of the cylindrical pin 22.

[0055] When the heat of the LED integrated panel 1 changes, the temperature signal can drive the cylindrical pin 22 to move forward and backward, thereby driving the spiral sleeve 16 to rotate along the curvature of the spiral groove 21, so that the heat conduction area of ​​the fins changes to ensure the regulation of the heat dissipation;

[0056] In this embodiment, a driving sleeve 23 is fixed to the outer end of the cylindrical pin 22, and the bottom of the driving sleeve 23 passes through the top cover of the heat-conducting tube 6 through the guide rod 24 until it is fixedly connected to the energy storage tube 9. The top cover of the heat-conducting tube 6 is provided with a through hole 31 at the position corresponding to the guide rod 24, and the top cover of the heat-conducting tube 6 is slidably connected to the guide rod 24;

[0057] In this embodiment, a heat dissipation portion 15 is further provided on the rear end surface of the variable conduction portion 14. The heat dissipation portion 15 includes heat dissipation fins 25 and an electronic fan 26 arranged behind the heat dissipation fins 25. During operation, the electronic fan 26 is driven by a built-in motor to increase the air flow in the heat dissipation fins 25 and assist the heat dissipation of the heat dissipation fins 25. The driving process of the electronic fan 26 belongs to the prior art and will not be elaborated herein.

[0058] In order to achieve close contact between the LED heat dissipation structure 36 and the heat dissipation aluminum plate 35; in this embodiment, a quick-connect structure 32 is also provided on the rear surface of the heat dissipation aluminum plate 35, and the quick-connect structure 32 includes a dovetail groove 27 provided at the rear of the heat dissipation aluminum plate 35 and a dovetail pin 28 correspondingly provided at the front of the thermal tube 6. During operation, the dovetail pin 28 at the front of the thermal tube 6 moves upward to disconnect the LED heat dissipation structure 36 from the rear of the LED integrated panel 1; the dovetail pin 28 at the front of the thermal tube 6 moves downward to fix the LED heat dissipation structure 36 to the rear end of the LED integrated panel 1.

[0059] In order to make the plunger 13 have a horizontal movement trajectory, in the present embodiment, a circular end cover 33 is also concentrically arranged at the rear end of the plunger accommodating tube 12, the circular end cover 33 is fixedly connected to the rear end of the plunger accommodating tube 12, and a guide hole 34 is opened in the center of the circular end cover 33 corresponding to the plunger 13, the plunger 13 passes through the guide hole 34 and is slidably connected to the circular end cover 33.

[0060] The novel single-lamp dual-pixel 3D LED display module described in the present invention, during operation, the single-chip dual-drive scanning circuit starts to drive the LED integrated panel 1 to operate, and the lamp beads 40 in the LED integrated panel 1 emit light, and the light is emitted by the three lamp beads 40 arranged in the left row and the three lamp beads 40 in the right row, respectively, and is delayed by the left-eye delay patch 37 and the right-eye delay patch 38 correspondingly arranged in front of the three lamp beads 40 in the left row and the three lamp beads 40 in the right row, and then is imaged at a three-point angle through the polarizer arranged at the front end of the left-eye delay patch 37 and the right-eye delay patch 38, so that the observer's left and right eyes respectively see the corresponding angles of the same object, and the observer perceives the realization of three-dimensional display through the synthesis of two parallax images in the brain.

[0061] However, when the temperature of the single-lamp dual-pixel 3DLED display module gradually increases, the LED heat dissipation structure 36 is fixed to the rear of the LED integrated panel 1 by means of the dovetail groove 27 arranged on the LED heat dissipation structure 36 and the dovetail pin 28 correspondingly arranged at the front of the heat-conducting tube 6; when the LED integrated panel 1 just starts to work, the temperature at the rear of the LED integrated panel 1 is relatively low, and the temperature inside the LED integrated panel 1 is transferred to the thermal expansion portion 8 through the heat-conducting tube 6, but the lower temperature is not enough to change the paraffin inside the energy storage tube 9 from solid to liquid, that is, the internal pressure in the energy storage tube 9 remains unchanged, the plunger 13 is located at the front end of the plunger accommodating tube 12, and the fixed fins 18 connected to the top cover of the heat-conducting tube 6 and the rotating fins 20 inserted at the intervals between the fixed fins 18 evenly spaced apart are at the farthest distance along the radial direction at this time, that is, the contact area between the fixed fins 18 and the rotating fins 20 is the smallest, and the heat transferred to the heat dissipation portion 15 along the contact surface is in a minimum state.

[0062] After the new single-lamp dual-pixel 3D LED display module has been working for a certain period of time, the heat generated by the PCB board inside the LED integrated panel 1 continues to increase, and the temperature inside the LED integrated panel 1 is transferred to the thermal expansion portion 8 through the heat-conducting tube 6. The higher temperature causes the paraffin inside the energy storage tube 9 to change from solid to liquid. At this time, the internal pressure in the energy storage tube 9 increases, squeezing the plunger accommodating tube 12. Since the plunger accommodating tube 12 is made of a rubber material with a certain elasticity, when subjected to external pressure, the volume of the plunger accommodating tube 12 is rapidly reduced, thereby squeezing the plunger 13 and causing the plunger 13 to have a tendency to move backward. Since the inner side of the top cover of the heat-conducting tube 6 is pressed against the rear surface of the plunger 13, the plunger 13 cannot move backward. Before the driving force of the reaction force, the plunger accommodating tube 12 moves forward, and the energy storage tube 9 fixedly connected to the rear end of the plunger accommodating tube 12 It moves forward along the clearance hole 30 and squeezes the reset spring 10, the driving sleeve 23 fixedly connected to the energy storage cylinder 9 moves forward and drives the cylindrical pin 22 fixed to the inner wall of the driving sleeve 23 to move forward, and the inner end of the cylindrical pin 22 is slidably connected to the corresponding spiral groove 21, so that the forward movement of the inner end of the cylindrical pin 22 is converted into the rotation of the spiral sleeve 16 along the axis; the variable thermal conductive fins 17 fixed to the inner cavity of the spiral sleeve 16 and the eccentrically arranged fixed fins 18 fixed to the top cover of the thermal conductive cylinder 6 rotate relative to each other, so that the contact area between the variable thermal conductive fins 17 and the fixed fins 18 is increased, and the change in the thermal conductive area of ​​the fins leads to an increase in the heat dissipation, so that the heat of the LED integrated panel 1 is quickly taken away, ensuring the temperature regulation of the LED integrated panel 1, thereby effectively avoiding the thermal shock of the PCB board in the LED integrated panel 1.

Claims

1. A novel single-lamp dual-pixel 3D LED display module, comprising an integrated panel (1) provided with an LED single-lamp array, wherein the LED single-lamp array is composed of a plurality of symmetrically arranged groups of LED single lamps, and characterized in that: Each group of LED single lights comprises two groups of LED light-emitting pixels arranged on the left and right, and each group of LED light-emitting pixels comprises three LED lamp beads of yellow, green and blue; the front surface of the LED single light array is provided with left and right eye delay patches (2) and polarizers (3) in sequence, and a PCB board is provided at the rear of the LED integrated panel (1), and a driver chip is provided on the PCB board, and the driver chip is used to control the corresponding LED light-emitting pixels in the LED single light array to emit light and display according to the set rules; an LED heat dissipation structure (36) is provided at the rear of the PCB board; The LED heat dissipation structure (36) comprises a heat dissipation aluminum plate (35) arranged at the rear end of the LED integrated panel (1), and a temperature sensing mechanism (4) is also arranged behind the heat dissipation aluminum plate (35); the temperature sensing mechanism (4) comprises a hollow heat-conducting tube (6) arranged on the rear surface of the heat dissipation aluminum plate (35), and a heat expansion portion (8) is also concentrically arranged in the inner cavity (7) of the heat-conducting tube; the heat expansion portion (8) is slidably connected to the heat-conducting tube (6); the heat expansion portion (8) comprises an energy storage tube (9), the energy storage tube (9) is in the shape of a tube with an open rear end and a sealed front end, and a first flange (11) is arranged at the rear end surface of the energy storage tube (9), and a plunger is also inserted at the rear end opening of the energy storage tube (9). The accommodating tube (12) is provided with a second flange (29) on the rear end surface of the plunger accommodating tube (12); the plunger accommodating tube (12) is suspended at the rear of the energy storage tube (9) and the front surface of the second flange (29) of the plunger accommodating tube (12) is in close contact with the rear end surface of the first flange (11); the outer surface of the plunger accommodating tube (12) and the inner surface of the energy storage tube (9) form a closed space; a plunger (13) is further inserted into the plunger accommodating tube (12), the rear end of the plunger (13) protrudes from the rear end surface of the plunger accommodating tube (12), and the plunger accommodating tube (12) is made of elastic rubber material; the closed space formed by the outer surface of the plunger accommodating tube (12) and the inner surface of the energy storage tube (9) is filled with paraffin; A heat dissipation fin adjustment mechanism (5) is also arranged at the rear of the heat-conducting tube (6). The heat-dissipation fin adjustment mechanism (5) comprises a variable conduction portion (14) and a heat dissipation portion (15). The variable conduction portion (14) is arranged at the rear of the heat-conducting tube (6). The variable conduction portion (14) comprises a spiral sleeve (16) and a variable heat-conducting fin (17). The spiral sleeve (16) is sleeved outside the variable heat-conducting fin (17) and the spiral sleeve (16) is arranged concentrically with the top cover of the heat-conducting tube (6). The variable heat-conducting fin (17) comprises a spiral sleeve (16) and a variable heat-conducting fin (17). The top cover of the heat-conducting tube (6) is provided with a fixed fin (18) eccentrically arranged, the fixed fin (18) being disc-shaped and fixedly connected to the top cover of the heat-conducting tube (6) through a concentrically arranged heat-conducting column (19), and a plurality of evenly spaced fixed fins (18) are fixed to the rear of the heat-conducting column (19); a rotating fin (20) is inserted at the interval between the evenly spaced fixed fins (18), the inner end of the rotating fin (20) is inserted at the interval between the evenly spaced fixed fins (18), and the outer end is fixed to the inner wall of the spiral sleeve (16).

2. The novel single-lamp dual-pixel 3D LED display module according to claim 1 is characterized in that: The LED single lamp (39) comprises a hollow lampshade and six LED lamp beads (40) arranged on the rear end surface inside the lampshade, the six LED lamp beads (40) forming two groups of LED light-emitting pixels arranged symmetrically on the left and right, and the rear end of the LED lamp beads (40) is soldered to a corresponding position of the PCB board through pins.

3. The novel single-lamp dual-pixel 3D LED display module according to claim 2 is characterized in that: The left and right eye delay patches (2) comprise a left eye delay patch (37) and a right eye delay patch (38); and the left eye delay patch (37) and the right eye delay patch (38) are respectively arranged on the front surface of each group of three lamp beads (40) in the left row and the front surface of each group of three lamp beads (40) in the right row.

4. The novel single-lamp dual-pixel 3D LED display module according to claim 1 is characterized in that: The driving chip adopts a single-chip dual-drive scanning circuit.

5. The novel single-lamp dual-pixel 3D LED display module according to claim 1 is characterized in that: The front surface of the integrated panel (1) is also provided with an optical microcrystalline mask (41), which is formed between the integrated panel (1) and the left and right eye delay patches (2) by means of glue injection; the optical microcrystalline mask (41) is a mixture of transparent epoxy resin crystal glue and glass beads.

6. The novel single-lamp dual-pixel 3D LED display module according to claim 1 is characterized in that: A clearance hole (30) is provided at the axis of the bottom cover of the heat-conducting tube (6), the energy storage tube (9) is inserted into the clearance hole (30) and is slidably connected to the bottom cover of the heat-conducting tube (6), the front end surface of the top cover of the heat-conducting tube (6) is pressed against the rear end surface of the plunger (13), and a return spring (10) is also sleeved on the outside of the energy storage tube (9), one end of the return spring (10) is fixed to the rear part of the energy storage tube (9), and the other end is fixed to the rear end surface of the bottom cover of the heat-conducting tube (6).

7. The novel single-lamp dual-pixel 3D LED display module according to claim 1 is characterized in that: The outer surface of the spiral sleeve (16) is provided with a spiral groove (21), and a cylindrical pin (22) is arranged in the spiral groove (21). The cylindrical pin (22) is arranged radially along the spiral sleeve (16), and the inner end of the cylindrical pin (22) is slidably connected to the corresponding spiral groove (21).

8. The novel single-lamp dual-pixel 3D LED display module according to claim 7 is characterized in that: A driving sleeve (23) is fixed to the outer end of the cylindrical pin (22); the bottom of the driving sleeve (23) passes through the top cover of the heat-conducting tube (6) through a guide rod (24) until it is fixedly connected to the energy storage tube (9); a through hole (31) is opened on the top cover of the heat-conducting tube (6) at a position corresponding to the guide rod (24), and the top cover of the heat-conducting tube (6) is slidably connected to the guide rod (24).

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