CN110290679B

CN110290679B - Water-cooling display module

Info

Publication number: CN110290679B
Application number: CN201910565994.4A
Authority: CN
Inventors: 刘远明
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2021-02-19
Anticipated expiration: 2039-06-27
Also published as: CN110290679A

Abstract

The embodiment of the invention provides a water-cooling radiating display module, which comprises a display panel and a lamp panel, wherein the top surface of the lamp panel, which is close to one side of the display panel, is provided with a plurality of LED lamp beads, and the bottom of the lamp panel, which is far away from one side of the display panel, is provided with a radiating cavity; and a cooling water band is arranged in the heat dissipation cavity and is arranged along the inner surface of the heat dissipation cavity. According to the display module provided by the invention, the cooling water belt is arranged in the heat dissipation cavity, so that the heat dissipation rate can be improved, the working temperature of the lamp panel is ensured to be normal, and the phenomenon of overhigh temperature can not be generated, so that the light emitting efficiency, the working stability and the service life of the LED lamp beads are ensured to be normal. In addition, because the heat that the lamp plate produced is in time absorbed, also can guarantee display panel's job stabilization.

Description

Water-cooling display module

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of display, in particular to a water-cooling radiating display module.

[ background of the invention ]

With the vigorous development of the automobile industry, the requirements on the brightness of vehicle-mounted display products are higher and higher, so that the quantity and power consumption of LEDs of a vehicle-mounted backlight source are increased continuously, and the temperature of the backlight source is increased rapidly; the photoelectric conversion rate of the LED is low, a large amount of electric energy is converted into heat energy during working, and if the heat energy cannot be dissipated in time, the temperature of an LED chip is overhigh, so that the service life, the luminous efficiency and the stability of the LED are influenced; meanwhile, too high temperature can change the electro-optical performance of the liquid crystal display panel, and the use of the whole product is influenced. In the prior art, the heat of the backlight source is generally transferred to the air, and the heat is taken away by the air for heat dissipation, but the efficiency of air transmission heat dissipation is low, and the stable work of the backlight source and the display panel cannot be ensured. Therefore, how to improve the heat dissipation capability is one of the key technologies to be solved urgently for the LED backlight.

[ summary of the invention ]

In view of this, an embodiment of the present invention provides a water-cooled heat dissipation display module, where the display module includes a display panel and a lamp panel, a plurality of LED lamp beads are disposed on a top surface of the lamp panel on a side close to the display panel, and a heat dissipation cavity is disposed at a bottom of the lamp panel on a side far from the display panel; and a cooling water band is arranged in the heat dissipation cavity and is arranged along the inner surface of the heat dissipation cavity.

Optionally, at least a part of the heat dissipation cavity is provided with a protruding structure deviating from the inner surface of the heat dissipation cavity.

Optionally, a first transmission crawler and a first driving motor are arranged in the cooling water belt, the first driving motor drives the first transmission crawler to operate, and the first transmission crawler drives water in the cooling water belt to flow.

Optionally, a temperature sensor is arranged on the first transmission track; the temperature sensor is used for measuring the water temperature in the cooling water belt and judging whether the water temperature is greater than 60 ℃; when the temperature of water in the cooling water belt is greater than or equal to 60 ℃, the first driving motor works to drive the first transmission crawler to operate; and when the temperature of the water in the cooling water belt is less than 60 ℃, the first driving motor does not work or stops working.

Optionally, a solar charging panel is further arranged, and the solar charging panel is connected with the lamp panel through a flexible circuit board; the solar charging panel comprises a telescopic structure, and when the solar charging panel is in a non-charging state, the solar charging panel is contracted and arranged in the heat dissipation cavity, and when the solar charging panel is in a charging state, the solar charging panel extends out of the heat dissipation cavity.

Optionally, the solar charging panel includes a plurality of charging panels, and the plurality of charging panels sequentially extend and extend out of the heat dissipation cavity or sequentially contract and are disposed inside the heat dissipation cavity.

Optionally, the plurality of charging plates contract or expand along a first direction, and/or contract or expand along a second direction; the first direction is along the direction from the inside of the heat dissipation cavity to the outside of the heat dissipation cavity, and the second direction is other directions different from the first direction.

Optionally, a second driving track and a second driving motor are arranged on the solar charging panel, the second driving motor drives the second driving track to operate, and the second driving track drives the solar charging panel to extend out of the heat dissipation cavity or shrink and arrange in the heat dissipation cavity.

Optionally, the solar charging panel is further connected with a battery, and the battery is used for supplying power to the plurality of LED lamp beads; when the electric quantity of the battery is lower than 5%, the second driving motor drives the second transmission crawler to operate, and the second transmission crawler drives the solar charging panel to extend out of the heat dissipation cavity.

Optionally, the cooling water band is annular, and the solar charging panel is disposed in a hollow position of the annular cooling water band.

Optionally, the cooling water band is U-shaped, and the solar charging panel is disposed in a hollow position of the U-shaped cooling water band.

Optionally, the lamp panel is in a shape of a straight plate or a plate with a radian; the heat dissipation cavity comprises a top surface close to one side of the lamp panel, and the shape of the top surface of the heat dissipation cavity is consistent with that of the lamp panel.

Optionally, the display module is an on-vehicle liquid crystal display module.

The invention also provides another display module which comprises a lamp panel, wherein the top surface of the lamp panel is provided with a plurality of LED lamp beads; a heat dissipation cavity is arranged at the bottom of the lamp panel, a cooling water band is arranged in the heat dissipation cavity, and the cooling water band is arranged along the inner surface of the heat dissipation cavity; the solar lamp is also provided with a solar charging panel, and the solar charging panel is connected with the lamp panel through a flexible circuit board; the solar charging panel comprises a telescopic structure, when the solar charging panel is in a non-charging state, the solar charging panel is arranged inside the heat dissipation cavity in a contracting mode, and when the solar charging panel is in a charging state, the solar charging panel extends out of the heat dissipation cavity.

According to the display module provided by the invention, the cooling water belt is arranged in the heat dissipation cavity, so that the heat dissipation rate can be improved, the working temperature of the lamp panel is ensured to be normal, and the phenomenon of overhigh temperature can not be generated, so that the light emitting efficiency, the working stability and the service life of the LED lamp beads are ensured to be normal. In addition, because the heat that the lamp plate produced is in time absorbed, also can guarantee display panel's job stabilization. The other display module further comprises the solar charging panel which is telescopically accommodated, clean energy can be used for supplying power to the LED lamp beads, energy is saved, the environment is protected, in addition, the sunlight irradiation area is increased due to the structure that the plurality of charging panels are unfolded, and the charging efficiency is improved. When the solar charging panel is not needed, the solar charging panel is arranged in the heat dissipation cavity, so that the space is saved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a top view of a water-cooling display module according to an embodiment of the present invention;

FIG. 2 is a schematic view taken along section AA' of FIG. 1;

FIG. 3 is a schematic diagram of the operation mode of the temperature sensor;

FIG. 4 is another schematic view taken along section AA' of FIG. 1;

fig. 5 is a schematic view of another water-cooling heat dissipation display module according to an embodiment of the present invention;

fig. 6 is a schematic view of a water-cooling display module according to a second embodiment of the present invention;

FIG. 7 is a schematic view illustrating an extension of a solar charging panel of the water-cooling display module shown in FIG. 6;

FIG. 8 is a schematic view of another display module according to the second embodiment;

FIG. 9 is a top view of the display module of FIG. 8 with a plurality of charging plates extending;

FIG. 10 is a schematic view of a plurality of charging plates in a display module according to still another embodiment of the second embodiment;

fig. 11 is a schematic top view illustrating a plurality of charging plates in a display module according to a fourth embodiment of the second embodiment;

fig. 12 is a schematic view of a display module according to a fifth implementation manner in the second embodiment;

FIG. 13 is a schematic view of the operation mode of the display module with the second driving motor.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Example one

Referring to fig. 1 and fig. 2, fig. 1 is a top view of a water-cooling display module according to an embodiment of the present invention, fig. 2 is a schematic view of a cross section AA' in fig. 1, a water-cooling display module 10 includes a display panel 11 and a lamp panel 12, a top surface 121 of the lamp panel 12 near one side of the display panel 11 is provided with a plurality of LED lamp beads 13, and a bottom 122 of the lamp panel 12 far from one side of the display panel 11 is provided with a heat dissipation cavity 14. A cooling water belt 15 is arranged in the heat dissipation cavity 14, and the cooling water belt 15 is arranged along the inner surface of the heat dissipation cavity 14. As shown in the figure, lamp panel 12 is a straight plate, heat dissipation cavity 14 includes a top surface 141 near one side of lamp panel bottom 122, and the shape of top surface 141 of heat dissipation cavity 14 is the same as the shape of lamp panel 12, and is also a straight plate. It should be noted that, in fig. 2, the LED lamp bead 13 is shielded by the side of the lamp panel 12 and is indicated by a dotted line.

The cooling water band 15 is arranged along the inner surface of the heat dissipation cavity 14 and is in contact with the top surface 141 of the heat dissipation cavity 14, and heat generated by the working and lightening of the plurality of LED lamp beads 13 is conducted to the cooling water band 15. Liquid water is placed in the cooling water band 15, the specific heat capacity of the liquid water is about 4.2 multiplied by 10J/(kg DEG C.), the specific heat capacity is far larger than that of air, and compared with the mode that heat generated by the LED lamp beads is diffused through the air in the prior art, the heat dissipation cavity 14 provided with the cooling water band 15 has a good heat absorption effect.

The cooling water band 15 absorbs heat generated by the working lightening of the LED lamp beads 13, reduces the temperature of the lamp panel 12, ensures that the working temperature of the lamp panel 12 is normal, and cannot generate the phenomenon of overhigh temperature, thereby ensuring the normal luminous efficiency, the working stability and the service life of the LED lamp beads 13. In addition, because the heat generated by the lamp panel 12 is absorbed in time, the working stability of the display panel 11 can be ensured.

In the structure shown in fig. 2, optionally, in the display module 10, at least a part of the surface of the heat dissipation cavity 14 is provided with the protruding structure 143, and the protruding structure 143 faces away from the inner surface of the heat dissipation cavity 14, that is, the protruding structure 143 is provided on at least a part of the outer surface of the heat dissipation cavity 14. The convex structure 143 disposed on the outer surface of the heat dissipation cavity 14 can increase the contact area between the outer surface of the heat dissipation cavity 14 and the outside, which is beneficial to the heat circulation. For example, at top surface 141 of heat dissipation cavity 14, the surface that its and lamp plate 12 contact is provided with protruding structure 143, has increaseed the area that carries out heat exchange with lamp plate 12 like this, and the heat that lamp plate 12 produced more easily transmits to it. The bottom surface 142 of the heat dissipation cavity 14 and the outer surface of the heat dissipation cavity contacting with the outside are provided with the protruding structures 143, so that the heat exchange area between the heat dissipation cavity 14 and the outside can be increased, the heat in the heat dissipation cavity 14 can be easily diffused to the outside, and the heat dissipation of the heat dissipation cavity 14 is facilitated.

Optionally, a first driving track and a first driving motor are arranged in the cooling water belt, the first driving motor drives the first driving track to operate, and the first driving track drives water in the cooling water belt to flow.

Specifically, as shown, a first drive track 16 and two

first drive motors

171, 172 are provided within the cooling water belt 15. In the display module shown in fig. 2, the cooling water band 15 has a U-shaped structure, the cooling water band 15 of the U-shaped structure is in contact with the top surface 141, the bottom surface 142, and one side surface 144 between the top surface 141 and the bottom surface 142 of the heat dissipation chamber 14, and the other side surface 145 is an opening position of the cooling water band 15 of the U-shaped structure. The two

first drive motors

171, 172 are respectively disposed on both sides of the opening position of the cooling water band 15 of the U-shaped structure. The two

first driving motors

171 and 172 drive the first driving caterpillar 16 to rotate, and the first driving caterpillar 16 drives the water in the cooling water belt 15 to flow. The water flow in the cooling water band 15 can accelerate the heat dissipation speed, and further improve the heat dissipation effect. Alternatively, the number of first drive motors may be other than two, for example, one first drive motor may be provided to rotate first drive track 16.

Optionally, a temperature sensor is disposed on the first transmission track, and the temperature sensor is configured to measure a water temperature in the cooling water zone, and determine whether to start the first driving motor according to the water temperature.

As shown in fig. 2, a temperature sensor 18 is provided on the first drive track 16. Fig. 3 is a schematic diagram of an operation mode of the temperature sensor, and as shown in fig. 3, the temperature sensor 18 measures the water temperature in the cooling water hose 15 and determines whether the water temperature is greater than 60 degrees. When the temperature of the water in the cooling water hose 15 is greater than or equal to 60 degrees, the

first driving motors

171 and 172 start to work to drive the first driving caterpillar 16 to operate, so that the heat dissipation speed is increased. When the measured water temperature is less than 60 degrees, the

first driving motors

171, 172 are not started to operate; if the

first drive motors

171, 172 are in operation, the operation is stopped. At a certain time interval, the temperature sensor 18 measures the temperature of the water in the cooling water hose 15 again, and makes a judgment again, and then the

first driving motors

171 and 172 are operated or not operated according to the judgment structure. By arranging the temperature sensor, whether the first driving motor drives the first transmission crawler belt or not can be determined according to the water temperature, when the water temperature is high, the first driving motor is started if the heat generated by the lamp panel is large and the heat dissipation needs to be accelerated; if the temperature is low, it is few to explain the heat that the lamp plate produced, makes first drive motor inoperative, reduces the consumption. The display module provided with the temperature sensor can decide between accelerating heat dissipation and saving power consumption according to the working condition or working environment of the display module, for example, the display module works continuously or in a high-heat environment, and after the temperature sensor reads the water temperature, the first driving motor is started to drive the first driving crawler belt, so that the heat dissipation is accelerated, and the stability of the display module is ensured; if the display module starts to work soon or works under the low temperature environment, the temperature sensor reads the water temperature, and then the first driving motor does not work, so that the power consumption is reduced.

Fig. 4 is a schematic view of another water-cooling heat dissipation display module according to an embodiment of the present invention, and the difference from the structure shown in fig. 2 is that the cooling water hose 15 is in an annular structure, and the cooling water hose 15 sequentially contacts with the top surface 141, one side surface 144, the bottom surface 142, and the other side surface 145 of the heat dissipation chamber 14, so that the area of the cooling water hose 15 is increased, and the heat dissipation rate can be increased.

Fig. 5 is a schematic view of another water-cooling heat dissipation display module according to an embodiment of the present invention, and the difference from the structure shown in fig. 2 is that the display panel 11 and the lamp panel 12 are both in a plate shape with a radian, and the whole display module is in a curved state. Crooked display module assembly more is fit for on-vehicle use, provides better demonstration visual angle. In order to match with the curved shape of the lamp panel 12, the top surface 141 of the heat dissipation cavity 14 close to one side of the lamp panel 12 is identical to the shape of the lamp panel 12, and is also curved. Other surfaces of the heat dissipation cavity 14 may have other structures according to design requirements, as shown in fig. 4, the bottom surface 142 of the heat dissipation cavity 14 is a straight plate; alternatively, the bottom surface 142 of the heat dissipation cavity 14 may have a plate shape with a curvature.

Optionally, the display module provided in the first embodiment of the present invention is a vehicle-mounted liquid crystal display module, and the display module may also be used in other devices, such as a liquid crystal display module of a monitor.

According to the display module provided by the embodiment of the invention, the cooling water band is arranged in the heat dissipation cavity, so that the heat dissipation rate can be improved, the working temperature of the lamp panel is ensured to be normal, and the phenomenon of overhigh temperature can not be generated, so that the light emitting efficiency, the working stability and the service life of the LED lamp beads are ensured to be normal. In addition, because the heat that the lamp plate produced is in time absorbed, also can guarantee display panel's job stabilization.

Example two

Fig. 6 is a schematic view of a water-cooled display module according to a second embodiment of the present invention, in which the water-cooled display module 20 includes a display panel 21 and a lamp panel 22, a plurality of LED lamp beads 23 are disposed on a top surface 221 of the lamp panel 22 close to one side of the display panel 21, and a heat dissipation cavity 24 is disposed on a bottom 222 of the lamp panel 22 far from one side of the display panel 21. A cooling water belt 25 is arranged in the heat dissipation cavity 24, and the cooling water belt 25 is arranged along the inner surface of the heat dissipation cavity 24. As shown, the cooling water band 25 has a U-shaped structure, and the cooling water band 25 of the U-shaped structure is in contact with one side 244 between the top surface 241, the bottom surface 242, the top surface 241 and the bottom surface 242 of the heat dissipation chamber 24, and is at the opening position of the cooling water band 25 of the U-shaped structure on the other side. It should be noted that, in fig. 6, the LED lamp bead 23 is shielded by the side of the lamp panel 22 and is indicated by a dotted line.

The cooling water band 25 absorbs heat generated by the working lightening of the LED lamp beads 23, reduces the temperature of the lamp panel 22, ensures that the working temperature of the lamp panel 22 is normal, and cannot generate the phenomenon of overhigh temperature, thereby ensuring the normal luminous efficiency, the working stability and the service life of the LED lamp beads 23. In addition, because the heat generated by the lamp panel 22 is absorbed in time, the working stability of the display panel 21 can be ensured.

The display module 20 is further provided with a solar charging panel 28, and the solar charging panel 28 is disposed in the hollow position of the U-shaped cooling water band 25. Solar charging panel 28 passes through flexible circuit board 29 and is connected with lamp plate 22, and solar charging panel 28 provides the lamp plate 22 with the electric energy through flexible circuit board 29 for drive LED lamp pearl 23 work.

The solar charging panel 28 comprises a telescopic structure, and when in a non-charging state, the solar charging panel 28 can be contracted and placed inside the heat dissipation cavity 24, specifically, in a hollow position of the U-shaped cooling water band 25. When in the charging state, the solar charging panel 28 is extended out of the heat dissipation cavity 24.

The telescopic structure of the solar charging panel 28 includes various ways, and in one implementation, as shown in fig. 6 and 7, fig. 6 is a schematic view of a water-cooling display module according to a second embodiment of the present invention.

Fig. 7 is a schematic diagram of the extension of the solar charging panel of the water-cooling display module shown in fig. 6, in which the solar charging panel 28 includes a plurality of charging

panels

281, 282, 283, 284, etc., and in two charging panels of the plurality of charging panels, a sliding rail may be disposed on a previous charging panel, and a pulley may be disposed on a next charging panel, and the sliding rail and the pulley are matched to allow the two charging panels to extend or contract to overlap. In the charging state, the charging

plates

281, 282, 283 and 284 sequentially extend and extend out of the heat dissipation cavity 24, and specifically, an opening 2451 is provided on the other side 245 of the heat dissipation cavity 24 corresponding to the opening of the U-shaped cooling water band 25, and the heat dissipation cavity 24 can extend out of the opening 2451.

In addition to the above-mentioned embodiments shown in fig. 6 and 7, the plurality of charging

plates

281, 282, 283, 284 are contracted or expanded along the first direction X from the inside of the heat dissipation cavity 24 to the outside of the heat dissipation cavity 24, specifically, the first direction X from the inside of the heat dissipation cavity 24 to the outside of the heat dissipation cavity 24 is the direction from the U-shaped bottom to the U-shaped opening of the U-shaped cooling water band 25. As shown in fig. 8 and 9, fig. 8 is a schematic view of another display module according to the second embodiment, and fig. 9 is a top structural view of the display module of fig. 8 with a plurality of charging plates extending. In the display module shown in fig. 8, the solar charging panel 28 includes a plurality of charging

panels

281, 282, 283, 284, etc. when in the non-charging state, the plurality of charging

panels

281, 282, 283, 284, etc. of the solar charging panel 28 are shrunk and placed inside the heat dissipation cavity 24, specifically, in the hollow position of the U-shaped cooling water band 25. When in the charging state, the plurality of charging

plates

281, 282, 283, 284 and the like of the solar charging plate 28 extend out of the heat dissipation cavity 24. Specifically, the direction from the U-shaped bottom of the U-shaped cooling water band 25 to the U-shaped opening is the second direction Y, and the direction orthogonal to the second direction Y in plan view is the first direction X. The side surface of the heat dissipation chamber 24 has an opening in the first direction X, and the plurality of charging

plates

281, 282, 283, 284, etc. are extended or contracted from the opening in the first direction X from the inside of the heat dissipation chamber 24 to the outside of the heat dissipation chamber 24.

Referring to fig. 10, a schematic diagram of a plurality of charging plates in a display module according to still another embodiment of the second embodiment is shown, and the difference from the structure shown in fig. 8 is that in fig. 10, the cooling water band 25 is annular, and the solar charging plates 28 are disposed in the hollow position of the annular cooling water band 25 when being contracted. The heat dissipation cavity 24 includes a first side 244 and a second side 245 oppositely arranged in the second direction Y, and further includes a third side 246 and a fourth side (not shown) oppositely arranged in the second direction Y. The direction from the first side 244 to the second side 245 is the second direction Y, and the direction from the fourth side (not shown) to the third side 246 is the first direction. The cooling water band 25 is in contact with the top surface 241, the first side surface 244, the bottom surface 242 and the second side surface 245 of the heat dissipation chamber 24 in sequence, and the cooling water band 25 is not arranged on the third side surface 246 and the fourth side surface. An opening 247 is provided on the side of the third side 246, and a plurality of charging

plates

281, 282, 283, 284, etc. are extended or contracted from the opening 247 in the first direction X from the inside of the heat dissipation chamber 24 to the outside of the heat dissipation chamber 24.

The plurality of charging plates may also be contracted or expanded in a second direction different from the first direction. Referring to fig. 11, which is a schematic top view illustrating a plurality of charging plates in a display module according to a fourth implementation manner of the second embodiment, the solar charging plate 28 includes a plurality of charging

plates

281, 282, 283, 284 and 285. The plurality of charging

plates

281, 282, 283, 284 and 285 may extend out of the heat dissipation chamber from the first direction X and may be fanned out in the second direction Y.

The telescopic expansion structure of the solar charging panel comprises the following specific embodiments, the solar charging panel is arranged to be a telescopic expansion structure, when the solar charging panel is required to supply power to the LED lamp beads, the solar charging panel extends out of the heat dissipation cavity, and clean solar energy is used for supplying power to the LED lamp beads, so that the solar charging panel is energy-saving and environment-friendly; in addition, the structure that polylith charging panel expandes increases the sunshine area of shining, promotes charge efficiency. When the solar charging panel is not needed, the solar charging panel is arranged in the heat dissipation cavity, so that the space is saved.

Optionally, the display module 20 further includes a battery 30, and the battery 30 is used for supplying power to the plurality of LED lamp beads. As shown in fig. 6 to 8, the solar charging panel 28 is connected to a battery 30 through a flexible circuit board 29, and the solar charging panel 28 converts solar energy into electric energy to be stored in the battery 30.

Fig. 12 is a schematic view of a display module according to a fifth implementation manner of the second embodiment. The solar charging panel 28 is provided with a second driving track 31 and second driving

motors

321 and 322. The

second driving motors

321, 322 are respectively disposed at two sides of the second driving track 31 to drive the second driving track 31 to rotate, and the second driving track 31 drives the solar charging panel 28 to extend out of the heat dissipation cavity 24 or shrink into the heat dissipation cavity 24.

FIG. 13 is a schematic view of the operation mode of the display module with the second driving motor. The second driving motor is connected with the battery, the display module is further provided with a control mainboard, and the second driving motor and the battery are respectively connected with the control mainboard. The control mainboard reads the battery power regularly, and when the battery power is more than 5%, the control mainboard does not control the second drive motor to work. When the electric quantity of the battery is lower than 5%, the control main board controls the second driving motor to drive the second transmission crawler belt to operate, the second transmission crawler belt drives the solar charging panel to stretch out of the heat dissipation cavity, the solar charging panel starts to work, solar energy is converted into electric energy, and the electric energy is stored in the battery. When the battery is fully charged, the control main board controls the second driving motor to drive the second transmission crawler belt to operate, and the second transmission crawler belt drives the solar charging panel to contract and arrange in the heat dissipation cavity. Through above-mentioned automatic mode, but the use of intelligent control solar charging panel does not need manual operation, optimizes user's use impression.

According to the display module provided by the second embodiment of the invention, the cooling water band is arranged in the heat dissipation cavity, so that the heat dissipation rate can be improved, the working temperature of the lamp panel is ensured to be normal, and the phenomenon of overhigh temperature can not be generated, thereby ensuring the normal luminous efficiency, working stability and service life of the LED lamp beads. In addition, because the heat that the lamp plate produced is in time absorbed, also can guarantee display panel's job stabilization. Furthermore, the display module provided by the second embodiment of the invention further comprises a solar cell panel which can be telescopically accommodated, so that clean energy can be used for supplying power to the LED lamp beads, the energy is saved, the environment is protected, in addition, the sunlight irradiation area is increased by the structure formed by the plurality of charging plates, and the charging efficiency is improved. When the solar charging panel is not needed, the solar charging panel is arranged in the heat dissipation cavity, so that the space is saved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The water-cooled heat dissipation display module is characterized by comprising a display panel and a lamp panel, wherein a plurality of LED lamp beads are arranged on the top surface of the lamp panel close to one side of the display panel, and a heat dissipation cavity is arranged at the bottom of the lamp panel far away from one side of the display panel; a cooling water band is arranged in the heat dissipation cavity and is arranged along the inner surface of the heat dissipation cavity;

a first transmission crawler belt and a first driving motor are arranged in the cooling water belt, the first driving motor drives the first transmission crawler belt to operate, and the first transmission crawler belt drives water in the cooling water belt to flow;

the display module is also provided with a solar charging panel, and the solar charging panel is connected with the lamp panel through a flexible circuit board;

the solar charging panel comprises a telescopic structure, and when the solar charging panel is in a non-charging state, the solar charging panel is contracted and arranged in the heat dissipation cavity, and when the solar charging panel is in a charging state, the solar charging panel extends out of the heat dissipation cavity.

2. The display module of claim 1, wherein at least a portion of the heat dissipation cavity has a raised structure disposed thereon that faces away from an inner surface of the heat dissipation cavity.

3. The display module of claim 1, wherein the first drive track has a temperature sensor disposed thereon; the temperature sensor is used for measuring the water temperature in the cooling water belt and judging whether the water temperature is greater than 60 ℃;

when the temperature of water in the cooling water belt is greater than or equal to 60 ℃, the first driving motor works to drive the first transmission crawler to operate; and when the temperature of the water in the cooling water belt is less than 60 ℃, the first driving motor does not work or stops working.

4. The display module of claim 1, wherein the solar charging panel comprises a plurality of charging panels, and the plurality of charging panels sequentially extend and extend out of the heat dissipation cavity or sequentially retract and are disposed inside the heat dissipation cavity.

5. The display module of claim 4, wherein the plurality of charging plates contract or extend in a first direction and/or contract or extend in a second direction; the first direction is along the direction from the inside of the heat dissipation cavity to the outside of the heat dissipation cavity, and the second direction is other directions different from the first direction.

6. The display module according to claim 1, wherein a second driving track and a second driving motor are disposed on the solar charging panel, the second driving motor drives the second driving track to rotate, and the second driving track drives the solar charging panel to extend out of the heat dissipation cavity or shrink into the heat dissipation cavity.

7. The display module as claimed in claim 6, wherein the solar charging panel is further connected to a battery, and the battery is used for supplying power to the plurality of LED lamp beads; when the electric quantity of the battery is lower than 5%, the second driving motor drives the second transmission crawler to operate, and the second transmission crawler drives the solar charging panel to extend out of the heat dissipation cavity.

8. The display module according to claim 1, wherein the cooling water band is annular, and the solar charging panel is disposed in a hollow position of the annular cooling water band.

9. The display module according to claim 1, wherein the cooling water band is U-shaped, and the solar charging panel is disposed in a hollow position of the U-shaped cooling water band.

10. The display module as claimed in claim 1, wherein the lamp panel is in a shape of a straight plate or a plate with a radian; the heat dissipation cavity comprises a top surface close to one side of the lamp panel, and the shape of the top surface of the heat dissipation cavity is consistent with that of the lamp panel.

11. The display module of claim 1, wherein the display module is an in-vehicle liquid crystal display module.

12. The water-cooled radiating display module is characterized by comprising a lamp panel, wherein the top surface of the lamp panel is provided with a plurality of LED lamp beads;

a heat dissipation cavity is arranged at the bottom of the lamp panel, a cooling water band is arranged in the heat dissipation cavity, and the cooling water band is arranged along the inner surface of the heat dissipation cavity;

the solar lamp is also provided with a solar charging panel, and the solar charging panel is connected with the lamp panel through a flexible circuit board; the solar charging panel comprises a telescopic structure, when the solar charging panel is in a non-charging state, the solar charging panel is arranged inside the heat dissipation cavity in a contracting mode, and when the solar charging panel is in a charging state, the solar charging panel extends out of the heat dissipation cavity.