Liquid crystal display module and liquid crystal display device

Abstract

The invention belongs to the technical field of liquid crystal display, and particularly relates to a liquid crystal display module and a liquid crystal display device. The color calibration system further comprises a color calibration work triggering mechanism, a triggering frequency regulation and control structure, a use degree calculation mechanism, a use degree feedback mechanism, a shutdown correction circuit switching mechanism and a PLC. According to the invention, the interval automatic triggering of color calibration work can be carried out on the liquid crystal display module, the triggering frequency of color calibration can be automatically regulated and controlled based on the use duration of the liquid crystal display module, the longer the use duration is, the higher the triggering frequency is, and the method is better suitable for the problems that the deeper the aging degree of liquid crystal molecules is and the larger the amplitude of color deviation is. Therefore, the triggering of color calibration is more timely, and meanwhile, the problems that the workload of components in the liquid crystal display module is increased and the aging of the components is accelerated due to too frequent color standard triggering work are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid crystal display, and in particular relates to a liquid crystal display module and a liquid crystal display device. Background Art

[0002] A liquid crystal display module is composed of a liquid crystal panel, a driving circuit, and a backlight source. By controlling the voltage change on the liquid crystal layer through the driving circuit, the arrangement of liquid crystal molecules is changed, and then the light transmittance is changed. When the light emitted by the backlight source passes through the liquid crystal layer, according to the arrangement state of the liquid crystal molecules, the light is modulated, and finally the image or text that we see is formed.

[0003] The core of the liquid crystal display module is the liquid crystal layer. Under the long-term action of an electric field, the orientation characteristics of liquid crystal molecules will gradually change. As time goes by, the liquid crystal molecules cannot be accurately arranged according to the driving signal, thus affecting the transmission and modulation of light. For example, under normal circumstances, liquid crystal molecules can be arranged orderly under the action of an electric field, so that the light emitted by the backlight source can accurately pass through the color filter to form the correct color. However, after long-term use, the arrangement of liquid crystal molecules becomes disordered, the light transmittance and angle change, resulting in color deviation. Some high-end modules have a color calibration function. Currently, the color calibration function is specifically performed actively when the liquid crystal display module has been used for a certain period of time or when it is powered on. However, the single use time of the liquid crystal display module is not fixed. When the liquid crystal display module is used for a short time and then powered off, the electric field disappears, and the liquid crystal molecules will gradually return to the natural state. If the color calibration function is still enabled at a fixed time or when powered on, it will cause that because the color calibration process usually needs to adjust various components of the display module to a certain extent, such as the control adjustment of liquid crystal molecules by the driving chip, the brightness and color balance adjustment of the backlight source, etc., frequent calibration will increase the working burden of these components and accelerate their aging. Moreover, during the color calibration process, the display device will have phenomena such as short-term screen flicker and color mutation, which will interfere with the normal use of users. If the calibration frequency is too high, users will frequently encounter these interference situations. For devices such as advertising displays in shopping malls that are kept on for a long time, because as time goes by, liquid crystal molecules will gradually age under the continuous action of an electric field, the deeper the aging degree of liquid crystal molecules, the greater the possibility and amplitude of color deviation, so more frequent color calibration is required to correct this deviation. Therefore, the current color calibration work with a fixed frequency cannot meet the actual use situation. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid crystal display module and a liquid crystal display device for the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A liquid crystal display module, including a housing assembly, inside which a liquid crystal display panel is installed, and further including:

[0006] A color calibration work trigger mechanism, installed at the rear side inside the housing assembly;

[0007] A trigger frequency regulation structure, installed on the color calibration work trigger mechanism;

[0008] A usage degree calculation mechanism, installed at the rear side inside the housing assembly;

[0009] A usage degree feedback mechanism, installed inside the usage degree calculation mechanism;

[0010] A shutdown correction circuit switching mechanism, fixedly installed on the usage degree calculation mechanism;

[0011] A PLC controller, installed at the rear side inside the housing assembly, and electrically connected to the color calibration work trigger mechanism, the trigger frequency regulation structure, the usage degree calculation mechanism, the usage degree feedback mechanism, and the shutdown correction circuit switching mechanism respectively.

[0012] In the above-mentioned liquid crystal display module, the color calibration work trigger mechanism includes a trigger housing, inside which a moving piston is hermetically sleeved. A plurality of guiding slide rods are fixedly connected to the rear side of the moving piston. The ends of the guiding slide rods away from the moving piston penetrate out of the trigger housing. A plurality of compensation springs sleeved on the guiding slide rods are fixedly connected between the moving piston and the opposite side of the trigger housing. A trigger switch opposite to the moving piston is fixedly installed on the rear side inner wall of the trigger housing. An air inlet pipe is fixedly connected to the front end of the trigger housing, and a sluice valve is installed on the air inlet pipe. A small-diameter exhaust pipe is also fixedly connected to the front side wall of the trigger housing, and a quick exhaust mechanism is also installed on the trigger housing.

[0013] In the above-mentioned liquid crystal display module, the trigger frequency regulation structure includes a plurality of limiting slide rods fixedly connected to the outer wall of the trigger housing. The same transmission plate is slidably sleeved outside the plurality of limiting slide rods. A plurality of pulling-back springs sleeved on the limiting slide rods are fixedly connected between the transmission plate and the opposite side of the trigger housing. A transmission rack is fixedly connected to the side wall of the transmission plate. A transmission gear meshing with the transmission rack is fixedly connected to the input end of the sluice valve. A regulation permanent magnet plate is fixedly connected to the side of the transmission plate away from the transmission rack. A regulation electromagnetic plate opposite to the regulation permanent magnet plate is fixedly installed on the outer wall of the trigger housing. An elastic folding insulating rubber sleeve sleeved on the regulation permanent magnet plate and the regulation electromagnetic plate is fixedly connected between the transmission plate and the opposite side of the trigger housing.

[0014] In the above-mentioned liquid crystal display module, the usage degree calculation mechanism includes a calculation shell, the inner wall of the calculation shell is rotatably connected with a synchronous screw rod, the outer wall of the calculation shell is fixedly provided with a synchronous motor for driving the synchronous screw rod to rotate, the rod wall of the synchronous screw rod is threadedly sleeved with a synchronous seat, and the rear side wall of the calculation shell is inserted with a laser rangefinder arranged opposite to the synchronous seat.

[0015] In the above-mentioned liquid crystal display module, the usage degree feedback mechanism includes a feedback resistance rod fixedly arranged at the bottom of the inner wall of the calculation shell, and the lower end of the synchronous seat is fixedly provided with a feedback conductive contact piece in electrical contact with the feedback resistance rod.

[0016] In the above-mentioned liquid crystal display module, the shutdown correction circuit switching mechanism includes a switching shell, the upper side of the inner wall of the switching shell is fixedly connected with a plurality of positioning slide rods arranged side by side, the same force receiving plate is slidably sleeved outside the plurality of positioning slide rods, a plurality of reset springs sleeved outside the positioning slide rods are fixedly connected between the force receiving plate and the opposite side of the switching shell, a thrust permanent magnet plate is fixedly arranged on the side wall of the force receiving plate, a thrust electromagnetic plate arranged opposite to the thrust permanent magnet plate is fixedly arranged on the inner wall of the switching shell, a conductive block is fixedly arranged at the lower end of the force receiving plate, a reverse electrical contact block and a forward electrical contact block corresponding to the position of the conductive block are fixedly arranged at the bottom of the inner wall of the switching shell, and an elastic extrusion mechanism is arranged between the force receiving plate and the conductive block.

[0017] In the above-mentioned liquid crystal display module, the rapid exhaust mechanism includes an electric push rod fixedly arranged on the outer wall of the trigger shell, the moving end of the electric push rod is fixedly connected with a sealing plate, a sealing plug block is fixedly arranged on the side of the sealing plate close to the trigger shell, and a large-diameter exhaust port sealed and inserted with the sealing plug block is arranged on the side wall of the trigger shell.

[0018] In the above-mentioned liquid crystal display module, the elastic extrusion mechanism includes a fixing plate fixedly connected to the lower end of the force receiving plate, an insulating plate is fixedly arranged at the upper end of the conductive block, a plurality of anti-disengagement rods are symmetrically fixedly connected to the upper end of the insulating plate, the upper ends of the anti-disengagement rods penetrate through the upper end of the fixing plate, and a plurality of extrusion springs sleeved outside the anti-disengagement rods are fixedly connected between the lower end of the fixing plate and the upper end of the insulating plate.

[0019] The present invention also provides a liquid crystal display device, including the above-mentioned liquid crystal display module.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Through the provided color calibration work trigger mechanism, trigger frequency regulation structure, usage degree calculation mechanism, usage degree feedback mechanism, and rapid exhaust mechanism, it is possible to automatically trigger the interval of color calibration work for the liquid crystal display module, and automatically regulate the trigger frequency of color calibration based on the usage duration of the liquid crystal display module. The longer the usage duration, the higher the trigger frequency, which better suits the problem that the deeper the aging degree of liquid crystal molecules, the greater the color deviation amplitude, making the trigger of color calibration more timely. At the same time, it also avoids the problem that too frequent color calibration trigger work will increase the working burden of components in the liquid crystal display module and accelerate their aging.

[0022] 2. Through the provided color calibration work trigger mechanism and shutdown correction circuit switching mechanism, after the liquid crystal display module is powered off, it can adapt to the gradual restoration of liquid crystal molecules to the natural state to determine the state of liquid crystal molecules when the liquid crystal display module is started next time, and then precisely regulate the trigger frequency of color calibration after the next operation of the liquid crystal display module.

[0023] 3. Through the provided usage degree calculation mechanism, it can calculate and judge the usage state of the entire liquid crystal display module, and based on the usage state, feedback an estimated time for the liquid crystal display module to require shutdown correction, so as to accurately perform shutdown correction on the liquid crystal display module on the premise of reducing the adverse effects caused by turning off the liquid crystal display module, and avoid the problem that too long operation of the liquid crystal display module will have a greater impact on the service life of the liquid crystal display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front three-dimensional structural schematic diagram of a liquid crystal display module provided by the present invention;

[0025] Figure 2 is the rear cross-sectional structural schematic diagram of a liquid crystal display module provided by the present invention;

[0026] Figure 3 is the cross-sectional structural schematic diagram of the color calibration work trigger mechanism of a liquid crystal display module provided by the present invention;

[0027] Figure 4 is the structural schematic diagram of the trigger frequency regulation structure of a liquid crystal display module provided by the present invention;

[0028] Figure 5 is the cross-sectional structural schematic diagram of the usage degree calculation mechanism of a liquid crystal display module provided by the present invention;

[0029] Figure 6 is the cross-sectional structural schematic diagram of the shutdown correction circuit switching mechanism of a liquid crystal display module provided by the present invention;

[0030] Figure 7It is a schematic structural diagram of a rapid exhaust mechanism for a liquid crystal display module provided by the present invention;

[0031] Figure 8 It is a schematic structural diagram of an elastic extrusion mechanism for a liquid crystal display module provided by the present invention.

[0032] In the figure: 1 housing assembly, 2 color calibration work trigger mechanism, 21 trigger housing, 22 moving piston, 23 guiding slide bar, 24 compensation spring, 25 trigger switch, 26 intake pipe, 27 gate valve, 28 small-diameter exhaust pipe, 3 trigger frequency regulation structure, 31 limit slide bar, 32 transmission plate, 33 pulling-back spring, 34 transmission rack, 35 transmission gear, 36 regulation permanent magnet plate, 37 regulation electromagnetic plate, 4 usage degree calculation mechanism, 41 calculation housing, 42 synchronous screw, 43 synchronous motor, 44 synchronous seat, 45 laser rangefinder, 5 usage degree feedback mechanism, 51 feedback resistance rod, 52 feedback conductive contact piece, 6 shutdown correction circuit switching mechanism, 61 switching housing, 62 positioning slide bar, 63 stress plate, 64 return spring, 65 thrust permanent magnet plate, 66 thrust electromagnetic plate, 67 conductive block, 68 reverse electrical contact block, 69 forward electrical contact block, 7 rapid exhaust mechanism, 71 electric push rod, 72 sealing plate, 73 sealing plug, 74 large-diameter exhaust port, 8 elastic extrusion mechanism, 81 fixing plate, 82 insulating plate, 83 anti-disengagement rod, 84 extrusion spring, 9 liquid crystal display panel, 10 PLC controller. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 the embodiments.

[0034] As Figures 1-8 shown, a liquid crystal display module includes a housing assembly 1, a liquid crystal display panel 9 is installed inside the housing assembly 1, and further includes:

[0035] A color calibration work trigger mechanism 2 is installed at the rear side inside the housing assembly 1. The color calibration work trigger mechanism 2 includes a trigger housing 21. A moving piston 22 is hermetically sleeved inside the trigger housing 21. A plurality of guiding slide bars 23 are fixedly connected to the rear side of the moving piston 22. One end of the guiding slide bar 23 away from the moving piston 22 penetrates and extends out of the trigger housing 21. A plurality of compensation springs 24 sleeved outside the guiding slide bar 23 are fixedly connected to the opposite sides of the moving piston 22 and the trigger housing 21. A trigger switch 25 opposite to the moving piston 22 is fixedly installed on the rear side inner wall of the trigger housing 21. The front end of the trigger housing 21 is fixedly communicated with an intake pipe 26. A gate valve 27 is installed on the intake pipe 26. The front side wall of the trigger housing 21 is also fixedly communicated with a small-diameter exhaust pipe 28. A rapid exhaust mechanism 7 is also installed on the trigger housing 21.

[0036] The quick exhaust mechanism 7 includes an electric push rod 71 fixedly installed on the outer wall of the trigger housing 21. The moving end of the electric push rod 71 is fixedly connected to a sealing plate 72. A sealing plug 73 is fixedly installed on the side of the sealing plate 72 close to the trigger housing 21. A large-diameter exhaust port 74 that is hermetically inserted and connected to the sealing plug 73 is provided on the side wall of the trigger housing 21.

[0037] The trigger frequency regulation structure 3 is installed on the color calibration work trigger mechanism 2. The trigger frequency regulation structure 3 includes multiple limit slide rods 31 fixedly connected to the outer wall of the trigger housing 21. The same transmission plate 32 is slidably sleeved outside the multiple limit slide rods 31. A plurality of pull-back springs 33 sleeved outside the limit slide rods 31 are fixedly connected between the transmission plate 32 and the opposite side of the trigger housing 21. A transmission rack 34 is fixedly connected to the side wall of the transmission plate 32. A transmission gear 35 meshing with the transmission rack 34 is fixedly connected to the input end of the gate valve 27. A regulation permanent magnet plate 36 is fixedly connected to the side of the transmission plate 32 away from the transmission rack 34. A regulation electromagnetic plate 37 arranged opposite to the regulation permanent magnet plate 36 is fixedly installed on the outer wall of the trigger housing 21. An elastic folding insulating rubber sleeve sleeved outside the regulation permanent magnet plate 36 and the regulation electromagnetic plate 37 is fixedly connected between the transmission plate 32 and the opposite side of the trigger housing 21.

[0038] The usage degree calculation mechanism 4 is installed at the rear side inside the housing assembly 1. The usage degree calculation mechanism 4 includes a calculation housing 41. A synchronous screw 42 is rotatably connected to the inner wall of the calculation housing 41. A synchronous motor 43 for driving the synchronous screw 42 to rotate self is fixedly installed on the outer wall of the calculation housing 41. A synchronous seat 44 is threadedly sleeved on the rod wall of the synchronous screw 42. A laser rangefinder 45 arranged opposite to the synchronous seat 44 is inserted into the rear side wall of the calculation housing 41.

[0039] The usage degree feedback mechanism 5 is installed inside the usage degree calculation mechanism 4. The usage degree feedback mechanism 5 includes a feedback resistance rod 51 fixedly installed at the bottom of the inner wall of the calculation housing 41. A feedback conductive contact piece 52 in electrical contact with the feedback resistance rod 51 is fixedly installed at the lower end of the synchronous seat 44.

[0040] The shutdown correction circuit switching mechanism 6 is fixedly installed on the usage degree calculation mechanism 4. The shutdown correction circuit switching mechanism 6 includes a switching housing 61. On the upper side of the inner wall of the switching housing 61, a plurality of positioning slide rods 62 arranged side by side are fixedly connected. A same force-bearing plate 63 is slidably sleeved outside the plurality of positioning slide rods 62. On the opposite sides of the force-bearing plate 63 and the switching housing 61, a plurality of return springs 64 sleeved outside the positioning slide rods 62 are fixedly connected. A thrust permanent magnet plate 65 is fixedly installed on the side wall of the force-bearing plate 63. A thrust electromagnetic plate 66 arranged opposite to the thrust permanent magnet plate 65 is fixedly installed on the inner wall of the switching housing 61. A conductive block 67 is fixedly installed at the lower end of the force-bearing plate 63. A reverse electrical connection block 68 and a forward electrical connection block 69 arranged corresponding to the position of the conductive block 67 are fixedly installed at the bottom of the inner wall of the switching housing 61. An elastic extrusion mechanism 8 is arranged between the force-bearing plate 63 and the conductive block 67.

[0041] The elastic extrusion mechanism 8 includes a fixed plate 81 fixedly connected to the lower end of the force-bearing plate 63. An insulating plate 82 is fixedly installed at the upper end of the conductive block 67. A plurality of anti-disengagement rods 83 are symmetrically fixedly connected to the upper end of the insulating plate 82. The upper ends of the anti-disengagement rods 83 penetrate through the upper end of the fixed plate 81. A plurality of extrusion springs 84 sleeved outside the anti-disengagement rods 83 are fixedly connected between the lower end of the fixed plate 81 and the upper end of the insulating plate 82.

[0042] The PLC controller 10 is installed at the rear side inside the housing assembly 1 and is electrically connected to the color calibration work triggering mechanism 2, the trigger frequency regulation structure 3, the usage degree calculation mechanism 4, the usage degree feedback mechanism 5, and the shutdown correction circuit switching mechanism 6 respectively.

[0043] Based on the above liquid crystal display module, the present invention further provides a liquid crystal display device, including the above liquid crystal display module.

[0044] The operating principle of the present invention is described as follows: During the operation of the liquid crystal display panel 9 for displaying images, the PLC controller 10 controls the power supply device to supply power to the regulation electromagnetic plate 37. After the regulation electromagnetic plate 37 is energized, it generates the same magnetic property as the regulation permanent magnet plate 36, thereby providing a driving force to the transmission plate 32. The transmission plate 32 moves along the limit slide bar 31, overcoming the elastic force of the pulling-back spring 33, and drives the transmission rack 34 to move. Through the meshing action of the transmission rack 34 and the transmission gear 35, the input end of the gate valve 27 on the intake pipe 26 is driven to rotate, so that the gate valve 27 is opened, and the intake pipe 26 is communicated with the air-cooled heat dissipation component installed in the housing assembly 1 (the air-cooled heat dissipation component here is a formed supporting device for the liquid crystal display module and is installed in the housing assembly 1). Thus, a part of the heat dissipation air flow of the air-cooled heat dissipation component is sent into the trigger housing 21 through the intake pipe 26, and the air volume introduced into the intake pipe 26 is greater than the exhaust volume of the small-diameter exhaust pipe 28. As a result, the air pressure in the trigger housing 21 gradually increases, and then the moving piston 22 moves gradually in the trigger housing 21 along the guiding slide bar 23, overcoming the elastic force of the compensation spring 24. When the moving piston 22 presses on the trigger switch 25, at this time, the PLC controller 10 controls the liquid crystal display panel 9 to perform color calibration work. The liquid crystal display panel 9 detects the output conditions of the three primary colors of red, green, and blue through the internal color sensor, and then compares them with the standard color values. If a deviation is found, it will adjust the control signal of the driving chip to the color filter to make the color restoration more accurate. After the trigger switch 25 is pressed and triggered, the PLC controller 10 controls the electric push rod 71 to push the sealing plate 72 to drive the sealing plug 73 to move, so that the sealing plug 73 disengages from the large-diameter exhaust port 74. As a result, the air pressure in the trigger housing 21 quickly decreases, and then under the action of the compensation spring 24, the moving piston 22 resets to the initial position. After the electric push rod 71 drives the sealing plug 73 to disengage from the sealed connection with the large-diameter exhaust port 74 for 5 s, the electric push rod 71 drives the sealing plate 72 to reset and move again, so that the sealing plug 73 is plugged into the large-diameter exhaust port 74 again to seal the trigger housing 21;

[0045] When the entire liquid crystal display module is working, the PLC controller 10 controls the synchronous motor 43 to work. The synchronous motor 43 drives the synchronous screw 42 to rotate. Through the threaded socket connection between the synchronous screw 42 and the synchronous seat 44, the synchronous seat 44 moves within the calculation housing 41. And the synchronous motor 43 is a reduction motor, so that the moving speed of the synchronous seat 44 is slower. During the movement of the synchronous seat 44, the feedback conductive contact piece 52 is driven to synchronously slide on the feedback resistance rod 51. As the usage time of the liquid crystal display module gradually increases, the access resistance value of the feedback resistance rod 51 gradually decreases. And the feedback conductive contact piece 52 and the feedback resistance rod 51 are connected in series in the power supply circuit of the regulation electromagnetic plate 37. That is, as the usage time of the liquid crystal display module increases, the supply current of the regulation electromagnetic plate 37 becomes larger, and then the magnetic force of the regulation electromagnetic plate 37 becomes larger, so that the transmission rack 34 drives the transmission gear 35 to rotate a larger angle, the opening and closing angle of the gate valve 27 becomes larger, the air pressure growth rate in the trigger housing 21 becomes faster, and then the trigger frequency of the color calibration trigger work becomes higher;

[0046] After the liquid crystal display module is shut down, the PLC controller 10 controls the power supply device to cut off the power supply to the regulation electromagnetic plate 37. Under the pulling action of the pulling spring 33, the transmission rack 34 drives the transmission gear 35 to rotate and reset, so that the gate valve 27 closes. The air filled in the trigger housing 21 only discharges through the small-diameter exhaust pipe 28. Then the moving piston 22 slowly resets and moves under the action of the compensation spring 24;

[0047] When the liquid crystal display module is working, the PLC controller 10 controls the power supply device to supply power to the thrust electromagnetic plate 66. The thrust electromagnetic plate 66 is energized to generate the same magnetism as the thrust permanent magnet plate 65. Then the force receiving plate 63 slides along the positioning slide rod 62 against the elastic force of the reset spring 64, so that the conductive block 67 connected to the lower end of the force receiving plate 63 contacts the positive electrical connection block 69, and the positive power supply circuit of the synchronous motor 43 is connected. After the liquid crystal display module is shut down, at this time, the power supply to the thrust electromagnetic plate 66 is cut off. Under the action of the reset spring 64, the force receiving plate 63 resets and moves, and then the conductive block 67 contacts the reverse electrical connection block 68, so that the synchronous motor 43 drives the synchronous screw 42 to flip with a higher power, and the synchronous seat 44 drives the feedback conductive contact piece 52 to reset and move on the feedback resistance rod 51. Here, the color calibration work trigger mechanism 2 and the usage degree calculation mechanism 4 both slowly recover synchronously with the recovery of liquid crystal molecules and the internal components of the liquid crystal display module after the liquid crystal display module is shut down. It can adapt to the gradual recovery of liquid crystal molecules to the natural state to determine the state of liquid crystal molecules when the liquid crystal display module is started next time, and then accurately regulate the color calibration trigger frequency after the next liquid crystal display module works;

[0048] The laser rangefinder 45 monitors the distance from the synchronization seat 44 in real time. When the distance between the synchronization seat 44 and the laser rangefinder 45 is small enough to approach the threshold, the PLC controller 10 feeds back a signal to the wireless receiving terminal of the staff, enabling the staff to select an appropriate shutdown correction time. Moreover, when the liquid crystal display module shuts down and the synchronization seat 44 moves away from the laser rangefinder 45, when the laser rangefinder 45 detects that the distance from the synchronization seat 44 reaches the maximum, the PLC controller 10 controls the synchronous motor 43 to stop working. It can calculate and judge the usage status of the entire liquid crystal display module, and based on the usage status, feedback an estimated time for the liquid crystal display module to require shutdown correction. Furthermore, on the premise of reducing the adverse effects caused by shutting down the liquid crystal display module, the liquid crystal display module can be accurately shut down and corrected, avoiding the problem that the long-term operation of the liquid crystal display module will have a greater impact on its service life.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A liquid crystal display module, comprising a housing component (1), wherein a liquid crystal display panel (9) is mounted in the housing component (1), characterized in that: Also includes: A color calibration trigger mechanism (2) is arranged on the inner rear side of the housing component (1); A trigger frequency control structure (3) is mounted on the color calibration work trigger mechanism (2); A usage degree calculation mechanism (4) is arranged on the inner rear side of the housing assembly (1); A usage level feedback mechanism (5) is installed inside the usage level calculation mechanism (4); A shutdown correction circuit switching mechanism (6) is fixedly mounted on the usage degree calculation mechanism (4); The PLC controller (10) is installed at the inner rear side of the housing component (1) and is electrically connected to the color calibration work trigger mechanism (2), the trigger frequency control structure (3), the usage level calculation mechanism (4), the usage level feedback mechanism (5) and the shutdown correction circuit switching mechanism (6).

2. A liquid crystal display module according to claim 1, characterized in that: The color calibration trigger mechanism (2) comprises a trigger shell (21), the inner sealing sleeve of the trigger shell (21) is provided with a movable piston (22), the rear side of the movable piston (22) is fixedly connected with a plurality of guide slide bars (23), one end of the guide slide bar (23) away from the movable piston (22) penetrates and extends out of the trigger shell (21), a plurality of compensation springs (24) sleeved on the outside of the guide slide bar (23) are fixedly connected to the opposite side of the movable piston (22) and the trigger shell (21), a trigger switch (25) arranged opposite to the movable piston (22) is fixedly arranged on the rear side of the inner wall of the trigger shell (21), the front end of the trigger shell (21) is fixedly connected with an air intake pipe (26), the air intake pipe (26) is provided with a gate valve (27), the front end side wall of the trigger shell (21) is also fixedly connected with a small diameter exhaust pipe (28), and the trigger shell (21) is also provided with a quick exhaust mechanism (7).

3. A liquid crystal display module according to claim 2, characterized in that: The trigger frequency control structure (3) comprises a plurality of limit sliding rods (31) fixedly connected to the outer wall of the trigger housing (21); a transmission plate (32) is slidably sleeved on the outer side of the plurality of limit sliding rods (31); a plurality of return springs (33) sleeved on the outer side of the limit sliding rods (31) are fixedly connected to the opposite side of the transmission plate (32) and the trigger housing (21); a transmission rack (34) is fixedly connected to the side wall of the transmission plate (32); an input end of the gate valve (27) is fixedly connected to the input end of the gate valve (27); A transmission gear (35) meshing with the transmission rack (34) is fixedly connected to the transmission plate (32), a side of the transmission plate (32) away from the transmission rack (34) is fixedly connected to a regulating permanent magnet plate (36), an outer wall of the trigger shell (21) is fixedly provided with a regulating electromagnetic plate (37) arranged opposite to the regulating permanent magnet plate (36), and an elastic folded insulating rubber sleeve sleeved outside the regulating permanent magnet plate (36) and the regulating electromagnetic plate (37) is fixedly connected to the opposite side of the transmission plate (32) and the trigger shell (21).

4. A liquid crystal display module according to claim 3, characterized in that: The usage degree calculation mechanism (4) comprises a calculation shell (41), the inner wall of the calculation shell (41) is rotatably connected with a synchronous screw (42), the outer wall of the calculation shell (41) is fixedly provided with a synchronous motor (43) for driving the synchronous screw (42) to rotate, the rod wall of the synchronous screw (42) is threadedly sleeved with a synchronous seat (44), and the rear side wall of the calculation shell (41) is inserted with a laser rangefinder (45) arranged opposite to the synchronous seat (44).

5. The liquid crystal display module according to claim 4, characterized in that: The usage level feedback mechanism (5) comprises a feedback resistor rod (51) fixedly mounted on the bottom of the inner wall of the computing shell (41), and a feedback conductive contact piece (52) in electrical contact with the feedback resistor rod (51) is fixedly mounted on the lower end of the synchronization seat (44).

6. The liquid crystal display module according to claim 5, characterized in that: The shutdown correction circuit switching mechanism (6) comprises a switching shell (61), a plurality of positioning slide bars (62) arranged side by side are fixedly connected to the upper side of the inner wall of the switching shell (61), a plurality of positioning slide bars (62) are slidably sleeved with a same force-bearing plate (63) on the outside of the plurality of positioning slide bars (62), a plurality of return springs (64) sleeved on the outside of the positioning slide bars (62) are fixedly connected to the opposite side of the force-bearing plate (63) and the switching shell (61), and a thrust permanent A magnetic plate (65), a thrust electromagnetic plate (66) arranged opposite to the thrust permanent magnetic plate (65) is fixedly mounted on the inner wall of the switching shell (61), a conductive block (67) is fixedly mounted on the lower end of the force-bearing plate (63), a reverse electric contact block (68) and a forward electric contact block (69) arranged corresponding to the position of the conductive block (67) are fixedly mounted on the bottom of the inner wall of the switching shell (61), and an elastic squeezing and pushing mechanism (8) is arranged between the force-bearing plate (63) and the conductive block (67).

7. The liquid crystal display module according to claim 6, characterized in that: The quick exhaust mechanism (7) comprises an electric push rod (71) fixedly mounted on the outer wall of the trigger housing (21); a sealing plate (72) is fixedly connected to the movable end of the electric push rod (71); a sealing block (73) is fixedly mounted on one side of the sealing plate (72) close to the trigger housing (21); and a large-diameter exhaust port (74) connected to a sealing sleeve of the sealing block (73) is provided on the side wall of the trigger housing (21).

8. The liquid crystal display module according to claim 7, characterized in that: The elastic squeezing and pushing mechanism (8) comprises a fixed plate (81) fixedly connected to the lower end of the force-bearing plate (63); an insulating plate (82) is fixedly mounted on the upper end of the conductive block (67); a plurality of anti-slip rods (83) are symmetrically fixedly connected to the upper end of the insulating plate (82); the upper ends of the anti-slip rods (83) penetrate the upper end of the fixed plate (81); and a plurality of squeezing and pushing springs (84) sleeved on the anti-slip rods (83) are fixedly connected to the lower end of the fixed plate (81) and the upper end of the insulating plate (82).

9. A liquid crystal display device, characterized in that: Comprising the liquid crystal display module as claimed in claim 8.

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