Transmitter

Abstract

The embodiment of the utility model discloses a transmitter, relates to the technical field of instruments and meters, and aims to simplify the operation of adjusting the display direction of a display module. The transmitter comprises a transmitter main body and a display module. A signal processing module is arranged in the transmitter main body; the display module comprises a liquid crystal display panel; the display module is arranged on the transmitter main body and is electrically connected with the signal processing module in the transmitter main body through a cable; the display module is detachably connected with the transmitter main body; under the condition that the display module is connected with the transmitter main body, the display module can rotate relative to the transmitter main body, and a rotation operation part is arranged on the display module; the display module is operated by the rotation operation part to rotate by a first angle relative to the transmitter main body, and the display module drives the liquid crystal display panel on the display module to rotate from an initial display orientation to a target display orientation. The method is suitable for converting non-electric signals into standard electric signals.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of instruments and meters, and particularly relates to a transmitter. BACKGROUND

[0002] The transmitter can convert physical quantities (such as pressure, temperature, flow, etc.) into standard signals, and specific applications can include pipeline pressure monitoring, boiler temperature monitoring, etc. In actual use, the installation angle of the transmitter is determined according to actual needs, in order to facilitate users to read and view the content displayed by the transmitter at different installation angles, in the prior art, the display module of the transmitter needs to be pulled out from the main body of the transmitter, and then installed on the main body by aligning the corresponding position, which leads to a relatively cumbersome operation of adjusting the display orientation of the display module. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the embodiments of the present application provide a transmitter, which facilitates to simplify the operation of adjusting the display orientation of the display module.

[0004] The embodiments of the present application provide a transmitter, which comprises a transmitter main body and a display module; a signal processing module is arranged in the transmitter main body; the display module comprises a liquid crystal display panel; the display module is arranged on the transmitter main body and electrically connected with the signal processing module in the transmitter main body through a cable; the display module is detachably connected with the transmitter main body; when the display module is connected with the transmitter main body, the display module is rotatable relative to the transmitter main body, and a rotating operation part is arranged on the display module; the display module is rotated by a first angle relative to the transmitter main body through the rotating operation part, and the liquid crystal display panel on the display module is rotated from an initial display orientation to a target display orientation.

[0005] According to a specific implementation manner of the embodiments of the present application, the transmitter main body further comprises a rotating connecting piece, and the rotating connecting piece is detachably fixed on the transmitter main body; and the display module is rotatably arranged on the rotating connecting piece.

[0006] According to a specific implementation manner of the embodiments of the present application, a first rotating connecting part is arranged on the display module, and a second rotating connecting part is arranged on the rotating connecting piece; the display module is rotated through the rotating operation part, and the first rotating connecting part on the display module is rotated along the second rotating connecting part on the rotating connecting piece.

[0007] According to a specific implementation manner of the embodiments of the present application, the first rotating connecting part is a protrusion, and the second rotating connecting part is a tooth surface, and the protrusion is engaged with the tooth surface.

[0008] According to a specific implementation manner of the embodiment of the present application, the display module further comprises a screen cover plate fixedly connected with the liquid crystal display panel, a through hole is arranged on the screen cover plate, and the through hole is opposite to the liquid crystal display panel; a flange is arranged on the periphery of the screen cover plate; the protrusion is arranged on the end surface of the flange facing the rotating connecting piece; and the tooth surface is arranged on the end surface of the rotating connecting piece facing the protrusion.

[0009] According to a specific implementation manner of the embodiment of the present application, the display module further comprises a screen cover plate fixedly connected with the liquid crystal display panel, a through hole is arranged on the screen cover plate, and the through hole is opposite to the liquid crystal display panel; a flange is arranged on the periphery of the screen cover plate; the protrusion is arranged on the end surface of the flange facing the rotating connecting piece; and the tooth surface is arranged on the end surface of the rotating connecting piece facing the protrusion.

[0010] According to a specific implementation manner of the embodiment of the present application, a first limiting boss is arranged on the screen cover plate, and a second limiting boss is arranged on the rotating connecting piece; during the process of rotating the display module by the rotating operation part, the first limiting boss is in contact with the second limiting boss, so as to prevent the display module from continuing to rotate.

[0011] According to a specific implementation manner of the embodiment of the present application, the display module and the transmitter main body have a cable slow-release accommodating cavity.

[0012] According to a specific implementation manner of the embodiment of the present application, a first electric connecting part is arranged at the central position of the side of the signal processing module opposite to the cable slow-release accommodating cavity; the first end of the cable is connected with the first electric connecting part; a second electric connecting part is arranged on the liquid crystal display panel, the second end of the cable is connected with the second electric connecting part; and the second electric connecting part is arranged away from the central position of the liquid crystal display panel.

[0013] According to a specific implementation manner of the embodiment of the present application, the display module further comprises a circuit board; the liquid crystal display panel is arranged on the circuit board; the display module further comprises a storage unit and an output interface, the storage unit is connected with the output interface, and the storage unit is further connected with the signal processing module.

[0014] The display module and the transmitter main body are rotatably connected, so that when the display orientation of the liquid crystal display panel in the display module needs to be adjusted, the display module is rotated by a first angle relative to the transmitter main body through the rotation operation part on the display module, so that the display module drives the liquid crystal display panel on the display module to rotate from the initial display orientation to the target display orientation, thereby adjusting the display orientation of the liquid crystal display panel in the display module under different installation angles of the transmitter, thereby facilitating the operation of adjusting the display orientation of the display module. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 An exploded view of the transmitter provided by an embodiment of the present application;

[0017] Figure 2 An exploded view of the display module provided by an embodiment of the present application;

[0018] Figure 3 A structural schematic view of the transmitter provided by another embodiment of the present application;

[0019] Figure 4 A relative position relationship schematic view of the display module and the rotary connecting piece in an embodiment of the present application;

[0020] Figure 5 A connection relationship schematic view between the display module and the rotary connecting piece in an embodiment of the present application;

[0021] Figure 6 A relative position relationship schematic view of the screen pressing plate and the rotary connecting piece in an embodiment of the present application;

[0022] Figure 7 A structural schematic view of the transmitter provided by another embodiment of the present application;

[0023] Figure 8 An exploded view of the transmitter provided by another embodiment of the present application;

[0024] Figure 9 A relative position relationship schematic view of the screen pressing plate and the rotary connecting piece in another embodiment of the present application.

[0025] Main drawing mark explanation:

[0026] 1-transmitter main body, 10-first electrical connection part; 2-display module, 20-liquid crystal display panel, 21-rotary operation part, 22-first rotary connection part, 23-screen cover plate, 24-screen pressing plate, 25-circuit board, 230-flange, 240-first limiting boss, 242-thread hole, 244-notch; 3-rotary connecting piece, 30-second rotary connection part, 31-second limiting boss, 32-identifier; 4-cable; 5-elastic member; 6-cable slow-release accommodating cavity; 7-front shell. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0029] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In order for those skilled in the art to better understand the technical concepts, implementation schemes and beneficial effects of the embodiments of the present application, the following will be described in detail through specific embodiments.

[0031] Figure 1 An exploded view of the transmitter provided by an embodiment of the present application, Figure 2 An exploded view of the display module provided by an embodiment of the present application, Figure 3 A structural schematic view of the transmitter provided by another embodiment of the present application, as Figures 1-3As shown, the transmitter of the embodiment can include a transmitter body 1 and a display module 2; the transmitter body 1 is provided with a signal processing module; the display module 2 includes a liquid crystal display panel 20; the display module 2 is arranged on the transmitter body 1 and is electrically connected with the signal processing module in the transmitter body 1 through a cable 4; the display module 2 is detachably connected with the transmitter body 1.

[0032] When the display module 2 is connected with the transmitter body 1, the display module 2 is rotatable relative to the transmitter body 1, and the display module 2 is provided with a rotating operation part 21.

[0033] The display module 2 is rotated by a first angle relative to the transmitter body 1 by operating the rotating operation part 21, and the liquid crystal display panel 20 on the display module 2 is rotated from an initial display orientation to a target display orientation.

[0034] The transmitter can measure a physical quantity and convert the measured value into a standard signal and display, wherein the signal processing module can process the measured value, and the liquid crystal display panel 20 can display the signal value processed by the signal processing module.

[0035] The display module 2 is detachably connected with the transmitter body 1, that is, the display module 2 can be mounted on the transmitter body 1, and the display module 2 can also be detached from the transmitter body 1, so that in the case of damage of the display module 2, the display module 2 can be detached from the transmitter body 1 for maintenance or replacement of a new display module, thereby improving the maintainability of the transmitter.

[0036] The rotating operation part 21 can be a part that a user can hold and apply a torsional moment, and after applying the torsional moment, the display module 2 can be rotated, and the liquid crystal display panel 20 is further rotated.

[0037] When the installation angle of the transmitter is changed, the user can rotate the display module 2 relative to the transmitter body 1 by operating the rotating operation part 21, so that the liquid crystal display panel 20 on the display module 2 is rotated from one display orientation (initial display orientation) to another display orientation (target display orientation), and the liquid crystal display panel 20 is displayed in a forward direction, so as to facilitate the user to view the content displayed by the liquid crystal display panel 20.

[0038] In the embodiment, the display module 2 is rotatably connected to the transmitter main body 1. When it is necessary to adjust the display orientation of the liquid crystal display panel 20 in the display module 2, the display module 2 is rotated by a first angle relative to the transmitter main body 1 through the rotation operation part 21 on the display module 2. Thus, the display module 2 drives the liquid crystal display panel 20 on the display module 2 to rotate from the initial display orientation to the target display orientation. Therefore, the display orientation of the liquid crystal display panel 20 in the display module 2 is adjusted under different installation angles of the transmitter, so as to simplify the operation of adjusting the display orientation of the display module 2 and avoid the problem that the liquid crystal display panel 20 is pulled out of the transmitter main body, aligned with the corresponding position and then installed on the main body, which leads to complicated operation. In addition, the display module is detachably connected to the transmitter main body, so as to improve the maintainability of the transmitter.

[0039] In order to rotatably arrange the display module 2 on the transmitter main body 1, in some examples, the transmitter main body 1 further comprises a rotation connecting piece 3 which is detachably fixed on the transmitter main body 1. The display module 2 is rotatably arranged on the rotation connecting piece 3.

[0040] The shape of the rotation connecting piece 3 in the embodiment can be any shape as long as it can be fixedly connected to the transmitter main body 1 and the display module 2 is rotatably arranged on the rotation connecting piece 3.

[0041] Since the rotation connecting piece 3 is fixed on the transmitter main body 1 and the display module 2 is rotatably arranged on the rotation connecting piece 3, the display module 2 is rotatable relative to the rotation connecting piece 3 and the transmitter main body 1.

[0042] In a more specific example, the display module 2 is provided with a first rotation connecting part 22 and the rotation connecting piece 3 is provided with a second rotation connecting part 30. The display module 2 is rotated through the rotation operation part 21, and the first rotation connecting part 22 on the display module 2 is rotated along the second rotation connecting part 30 on the rotation connecting piece 3.

[0043] In the embodiment, the display module 2 is rotatably arranged on the rotation connecting piece 3, which can be specifically realized by rotating the first rotation connecting part 22 on the display module 2 along the second rotation connecting part 30 on the rotation connecting piece 3.

[0044] The structure of the first rotation connecting part 22 and the second rotation connecting part 30 can be any structure.

[0045] Referring to Figure 4 In an embodiment, the first rotation connecting part 22 is a protrusion, and the second rotation connecting part 30 is a tooth surface, and the protrusion is engaged with the tooth surface.

[0046] The display module 2 is rotated by rotating the operation part 21, and the protrusion on the display module 2 is rotated along the tooth surface on the rotating connecting part 3, that is, the protrusion can slide from one tooth groove to another tooth groove on the tooth surface.

[0047] Referring to Figure 2 , Figure 4 and Figure 5 , in a specific example, the display module 2 can further include a screen cover plate 23 fixedly connected with the liquid crystal display panel 20, the screen cover plate 23 is provided with a through hole opposite to the liquid crystal display panel 20; a flange 230 is arranged on the periphery of the screen cover plate 23; the protrusion is arranged on the end surface of the flange 230 facing the rotating connecting part 3; and the tooth surface is arranged on the end surface of the rotating connecting part 3 facing the protrusion.

[0048] The through hole on the screen cover plate 23 is opposite to the liquid crystal display panel 20, so that the user can view the content displayed by the liquid crystal display panel 20 through the through hole.

[0049] The protrusion is arranged on the end surface of the flange 230 facing the rotating connecting part 3, and the tooth surface is arranged on the end surface of the rotating connecting part 3 facing the protrusion, so that the protrusion can be engaged with the tooth surface.

[0050] The number of protrusions can be one, two, five, etc., and the tooth surface can be arranged on the periphery of the end surface of the rotating connecting part 3 facing the protrusion. The adjacent tooth tops on the tooth surface are equal in distance on the periphery, and the tooth bottoms are equal in distance on the periphery, so as to realize 360° adjustment.

[0051] The specific implementation mode of the display module 2 rotatably arranged on the rotating connecting part 3 includes various modes, referring to Figure 5 , in one of the embodiments, the display module 2 can further include a screen pressing plate 24 fixedly connected with the screen cover plate 23; the liquid crystal display panel 20 is clamped between the screen pressing plate 24 and the screen cover plate 23; the screen pressing plate 24 is provided with a wire passing hole, and the cable 4 is arranged in the wire passing hole; an annular accommodating groove is formed between the screen pressing plate 24 and the screen cover plate 23; the rotating connecting part 3 is annular; and the rotating connecting part 3 is rotatably sleeved in the accommodating groove.

[0052] The screen pressing plate 24 can be fixedly connected with the screen cover plate 23 through screw threads or through buckle and slot, as shown in Figure 5 , in the embodiment, the screen pressing plate 24 is provided with a buckle, and the screen cover plate 23 is provided with a slot, and the buckle is buckled in the slot, so as to realize the fixed connection between the screen pressing plate 24 and the screen cover plate 23.

[0053] Referring to Figure 2In order to improve the safety of the liquid crystal display panel 20, in some examples, a resilient member 5, which can be a foam, can be arranged between the screen pressing plate 24 and the liquid crystal display panel 20; and / or a resilient member 5, which can be a foam, can be arranged between the screen cover plate 23 and the liquid crystal display panel 20.

[0054] Referring to Figure 6 The liquid crystal display panel 20 is clamped between the screen pressing plate 24 and the screen cover plate 23. In order to facilitate the cable 4 connected to the liquid crystal display panel 20 to be led out, a wire passing hole 242 is arranged on the screen pressing plate 24. The cable 4 can be arranged in the wire passing hole 242, so that the cable 4 connected to the liquid crystal display panel 20 is led out and connected to the signal processing module in the transmitter main body 1.

[0055] After the screen pressing plate 24 and the screen cover plate 23 are fixedly connected, an accommodating groove in the shape of a ring is formed between the screen pressing plate 24 and the screen cover plate 23. The annular rotating connecting member 3 is arranged in the accommodating groove, and the rotating connecting member 3 is rotatable relative to the screen pressing plate 24 and the screen cover plate 23, that is, the screen pressing plate 24 and the screen cover plate 23 are rotatable relative to the rotating connecting member 3.

[0056] In the embodiment as shown in Figure 5 The screen pressing plate 24 has a step, and the screen cover plate 23 has a step. The step on the screen pressing plate 24 and the step on the screen cover plate 23 are arranged oppositely, so that the accommodating groove in the shape of a ring is formed.

[0057] Referring to Figure 6 In order to avoid winding caused by unlimited rotation of the display module 2 and the rotating connecting member 3, in some examples, a first limiting boss 240 is arranged on the screen pressing plate 24, and a second limiting boss 31 is arranged on the rotating connecting member 3. During the process of rotating the display module 2 by operating the rotating operation part 21, the first limiting boss 240 is in contact with the second limiting boss 31, so as to prevent the display module 2 from continuing to rotate.

[0058] During the process of rotating the display module 2 by operating the rotating operation part 21, the first limiting boss 240 is in contact with the second limiting boss 31. In this way, the one-way rotation of the display module 2 relative to the rotating connecting member 3 cannot exceed 360° at most, so as to prevent the cable 4 from being twisted and damaged.

[0059] Referring to Figure 7 In order to prevent the cable 4 from being broken during the rotation of the display module 2, in some examples, the cable slack accommodating cavity 6 is arranged between the display module 2 and the transmitter main body 1.

[0060] The cable 4 drawn from the liquid crystal display panel 20 can be arranged in the cable buffer accommodating cavity 6 and connected with the signal processing module. During the rotation of the display module 2, the length of the cable 4 is increased due to the existence of the cable buffer accommodating cavity 6, so that the cable 4 is not easy to be twisted off, and the reliability of the transmitter is further improved.

[0061] Further, referring to Figure 8 In some examples, a first electrical connection part 10 is arranged at the central position of the side of the signal processing module opposite to the cable buffer accommodating cavity 6; the first end of the cable 4 is connected with the first electrical connection part 10; a second electrical connection part (not shown in the figure) is arranged on the liquid crystal display panel 20, and the second end of the cable 4 is connected with the second electrical connection part; and the second electrical connection part is arranged away from the central position of the liquid crystal display panel 20.

[0062] The first electrical connection part 10 and the second electrical connection part can be wiring terminals, the wiring terminals on the signal processing module are connected with the first end of the cable 4, and the wiring terminals on the liquid crystal display panel 20 are connected with the second end of the cable 4.

[0063] The first electrical connection part 10 is arranged at the central position of the side of the signal processing module opposite to the cable buffer accommodating cavity 6, and the second electrical connection part is arranged away from the central position of the liquid crystal display panel 20, so that the winding of the cable can be more effectively prevented.

[0064] In some examples, the display module 2 can further include a circuit board 25; the liquid crystal display panel 20 is arranged on the circuit board 25; the display module 2 further includes a storage unit and an output interface; the storage unit is connected with the output interface, and the storage unit is further connected with the signal processing module.

[0065] The storage unit is further connected with the signal processing module, so that the data output by the signal processing module can be stored in the storage unit, and the data in the storage unit can be read through the output interface subsequently.

[0066] The display module 2 in the embodiment has the data storage function, when the data output by the signal processing module needs to be read, the display module 2 can be detached from the transmitter main body 1, and the data stored in the storage unit of the display module 2 can be read on other equipment.

[0067] In a specific example, the display module 2 and the rotating connecting piece 3 can be integrally detached by pulling out the cable after the buckles on both sides of the rotating connecting piece 3 are pressed, so that the data stored in the storage unit can be read on other equipment.

[0068] In some examples, the rotating connecting piece 3, the liquid crystal display panel 20, the screen cover plate 23, the screen pressing plate 24, the circuit board 25 and the storage unit and the output interface can be pre-assembled to form an assembly, and the assembly is installed on the transmitter main body 1.

[0069] Referring to Figure 1 and Figure 8 In an embodiment of the present application, the transmitter further comprises a front shell 7, the front cover 6 is buckled on the transmitter main body 1 to form a containing cavity, and the display module 2 is arranged in the containing cavity.

[0070] When the display angle of the liquid crystal display panel 20 is adjusted, the front shell 7 can be rotated off the transmitter main body 1, the display module 2 is operated by rotating the operation part 21 relative to the transmitter main body 1, and the front shell 7 is reassembled after being adjusted to the appropriate position.

[0071] Referring to Figure 9 The notch 244 is arranged on the screen cover plate 24, and the identifier 32 is arranged on the rotating connecting piece 3.

[0072] Before the transmitter is shipped, the notch 244 and the identifier 32 are arranged, and when the two are aligned, it indicates that the liquid crystal display panel 20 indicates the forward position at this time.

[0073] Referring to Figure 9 The rotating operation part 21 can be arranged on the screen cover plate 23.

[0074] It should be noted that in this document, the terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0075] Each embodiment in the specification is described in a related manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0076] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed in the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A transmitter, characterized in that, include: Transmitter body and display module; The transmitter body is equipped with a signal processing module; The display module includes a liquid crystal display panel; The display module is mounted on the transmitter body and is electrically connected to the signal processing module in the transmitter body via a cable. The display module is detachably connected to the transmitter body; When the display module is connected to the transmitter body, the display module is rotatable relative to the transmitter body, and the display module is provided with a rotation operation part; by operating the rotation operation part, the display module rotates relative to the transmitter body by a first angle, and the display module drives the liquid crystal display panel on the display module to rotate from the initial display position to the target display position.

2. The transmitter according to claim 1, characterized in that, The transmitter also includes a rotating connector, which is detachably fixed to the transmitter body; The display module is rotatably mounted on the rotating connector.

3. The transmitter according to claim 2, characterized in that, The display module is provided with a first rotating connection part, and the rotating connector is provided with a second rotating connection part; The display module is rotated by the rotation operation part, and the first rotation connection part on the display module rotates along the second rotation connection part on the rotation connector.

4. The transmitter according to claim 3, characterized in that, The first rotating connection part is a protrusion; The second rotating connection part is a toothed surface, and the protrusion meshes with the toothed surface.

5. The transmitter according to claim 4, characterized in that, The display module also includes a screen cover plate fixedly connected to the liquid crystal display panel. The screen cover plate has a through hole, which is opposite to the liquid crystal display panel. The screen cover plate has a flange in its circumferential direction; the protrusion is provided on the end face of the flange facing the rotating connector; the toothed surface is provided on the end face of the rotating connector facing the protrusion.

6. The transmitter according to claim 5, characterized in that, The display module further includes a screen pressure plate, which is fixedly connected to the screen cover plate; the liquid crystal display panel is sandwiched between the screen pressure plate and the screen cover plate; the screen pressure plate is provided with a cable through hole, and the cable passes through the cable through the cable through hole; An annular receiving groove is formed between the screen pressure plate and the screen cover plate; The rotating connector is annular; the rotating connector is rotatably fitted into the receiving groove.

7. The transmitter according to claim 6, characterized in that, The screen pressure plate is provided with a first limiting boss, and the rotating connector is provided with a second limiting boss; During the rotation of the display module by the rotation operation unit, the first limiting boss and the second limiting boss come into contact to prevent the display module from continuing to rotate.

8. The transmitter according to claim 1, characterized in that, There is a cable release accommodating cavity between the display module and the transmitter body.

9. The transmitter according to claim 8, characterized in that, The signal processing module is provided with a first electrical connection part at the center of the side opposite to the cable release cavity; the first end of the cable is connected to the first electrical connection part; The liquid crystal display panel is provided with a second electrical connection part, and the second end of the cable is connected to the second electrical connection part; the second electrical connection part is located off-center from the center of the liquid crystal display panel.

10. The transmitter according to claim 1, characterized in that, The display module further includes a circuit board; the liquid crystal display panel is disposed on the circuit board; The display module is also provided with a storage unit and an output interface. The storage unit is connected to the output interface and is also connected to the signal processing module.

Images