Mini liquid crystal display screen protection structure of electric blow pipe

Abstract

The invention discloses a mini liquid crystal display screen protection structure of an electric blow pipe, and relates to the field of electric blow pipes, the mini liquid crystal display screen protection structure comprises a pipe body, a frame body and a display screen body, the pipe body is provided with a groove for the frame body to be clamped in, and the two sides of the frame body are elastically connected with a first clamping block and a second clamping block respectively; clamping grooves matched with the first clamping block and the second clamping block are symmetrically formed in the groove, limiting holes are symmetrically formed in the positions, located on one side of the second clamping block, in the clamping grooves in the vertical direction, a flexible air bag is installed in the frame body, and a piston cylinder communicated with the flexible air bag is arranged on the frame body. The corners of the display screen body in the frame body are wrapped through inflation of the flexible air bags, under cooperation of the guide columns and the insertion rods, the insertion rods slide out of the through holes and are clamped into the limiting holes in the clamping grooves, and when the insertion rods slide out of the limiting holes under the action of the elastic assemblies, the frame body can be taken down from the grooves, so that the display screen is convenient to use. And a worker can conveniently maintain and replace the display screen body.

Description

Technical Field

[0001] The present invention relates to the field of electric wind instruments, and specifically to a protection structure for the mini liquid crystal display screen of an electric wind instrument. Background Art

[0002] An electric wind instrument is an electronic musical instrument. It usually consists of a tube and an electronic sensor, which is a control instrument system for blowing air. Generally, it is composed of a tube imitation of a traditional wind instrument and a blowing port. Its working principle is similar to that of a wind instrument or a flute, but the sound is generated by air flowing through the tube and the electronic components in the tube sense the blowing air, so the pitch, volume, and effect can be adjusted and converted into electrical signals. Sometimes it is also used as a passive audio generator in an internal electronic device to emit sound.

[0003] Some existing electric wind instruments of certain models are equipped with liquid crystal display screens. Especially for some high-end or feature-rich electronic electric wind instruments, the liquid crystal display screen is usually used to display information such as notes, tonality, volume, and rhythm, which helps the performer to operate and adjust more conveniently, increasing the intuitiveness and convenience of use. However, in actual use, the liquid crystal display screen is easily damaged by external impacts, friction, or pressure. If it is accidentally touched or dropped during performance, it may cause the liquid crystal display screen to crack or malfunction. Moreover, during frequent performances and movements, the display screen may gradually show wear or aging. Since the liquid crystal display screen is mostly fixedly installed on the electric wind instrument, it is not convenient for the user to quickly replace it. The above problems may greatly affect the user's performance experience.

[0004] In summary, in actual use, the above structure lacks a buffer component for the liquid crystal display screen, and is extremely vulnerable to external impacts, friction, or pressure, resulting in damage. Moreover, since the liquid crystal display screen is mostly fixedly installed on the electric wind instrument, it is not convenient for the user to quickly replace it. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a protection structure for the mini liquid crystal display screen of an electric wind instrument to solve the technical problems that the liquid crystal display screen lacks a buffer component during use, is extremely vulnerable to external impacts, friction, or pressure, resulting in damage, and since the liquid crystal display screen is mostly fixedly installed on the electric wind instrument, it is not convenient for the user to quickly replace it.

[0006] To achieve the above object, the present invention provides the following technical solution: A mini liquid crystal display protection structure for an electronic wind instrument, including a tube body, a frame body and a display body. A groove for the frame body to be snapped into is provided on the tube body. First and second clamping blocks are elastically connected to both sides of the frame body respectively. Clamping grooves cooperating with the first and second clamping blocks are symmetrically arranged in the groove, and limiting holes are symmetrically opened in the vertical direction on one side of the second clamping block in the clamping groove;

[0007] A flexible airbag is installed in the frame body, and a set of piston cylinders connected to the flexible airbag are arranged on one side of the frame body where the second clamping block is located. At the same time, a limiting block is arranged in the piston cylinder. A guide post is elastically arranged in the second clamping block, and one end of the guide post penetrates into the piston cylinder. Driving blocks are elastically and symmetrically arranged at the corners of the frame body on one side of the second clamping block. An insertion rod cooperating with the limiting hole is elastically arranged at one end of the guide post in the second clamping block.

[0008] By adopting the above technical solution, the gas in the piston cylinder is discharged into the flexible airbag. At this time, the flexible airbag is inflated to wrap the corners of the display body in the frame body. When the tube body is subjected to external impact, friction or pressure, the flexible airbag can play a buffering role. The reset of the first clamping block will continue to drive the second clamping block to move towards one side of the frame body. During this process, the limiting block will block the piston. Under the cooperation of the guide post and the insertion rod, the insertion rod slides out of the through hole and is clamped into the limiting hole in the clamping groove. When the insertion rod slides out of the limiting hole under the action of the elastic component, the frame body can be removed from the groove. At this time, the gas in the airbag re-enters the piston cylinder, which is convenient for the staff to maintain and replace the display body.

[0009] The present invention is further configured such that a through hole for the insertion rod to penetrate is provided on the driving block, and one side of the through hole is open.

[0010] Preferably, when the insertion rod slides out of the second clamping block to one side under the action of the guide post, since the driving block and the second clamping block are in the same vertical direction, the insertion rod will penetrate the through hole. During this process, the stability of the driving block in the groove is ensured, effectively preventing the driving block from shifting in position.

[0011] The present invention is further configured such that one end of the guide post penetrates into the piston cylinder and is connected to a piston, and a sealing is provided between the side wall of the piston and the piston cylinder.

[0012] Preferably, under the action of the piston, when the guide post slides to one side, it will drive the piston to move towards one end of the piston cylinder, thereby realizing the discharge of the gas in the piston cylinder into the flexible airbag. And the sealing between the side wall of the piston and the piston cylinder ensures that the piston stably pumps air into or discharges air from the flexible airbag on one side during the sliding process.

[0013] The present invention is further configured such that the limiting block is adjustably provided on the inner wall of the piston cylinder.

[0014] Preferably, the staff can adjust the limiting block to different positions within the piston cylinder according to the thickness of the replaced display body, so as to achieve different states of the flexible airbag inflation, thereby facilitating the improvement of the overall practicality of the device.

[0015] The present invention is further configured such that the acting force of the elastic component at the first clamping block is greater than the acting force of the elastic component of its guide post within the second clamping block.

[0016] Preferably, when the first clamping block is inserted into the card slot, the elastic component at the first clamping block is in a compressed state. Subsequently, under the action of resetting, it will drive the entire frame to slide to one side. When one end of the piston contacts the limiting block, the elastic component at the first clamping block continues to reset and drive the frame to slide. At this time, the elastic component extruding the outer wall of the guide post can be realized, so that the guide post slides to one side within the second clamping block, thereby realizing the extrusion work of the guide post on the inserting rod on its one side.

[0017] The present invention is further configured such that the piston cylinder is fixedly provided on the frame, and is hermetically provided between its output end and the flexible airbag.

[0018] Preferably, the fixed setting will slide along with the frame during the resetting process of the frame, thereby enabling the piston to drive the guide post to reset and slide to one side. And the hermetic setting effectively prevents gas leakage during the air extraction and exhaust processes.

[0019] The present invention is further configured such that a sealing diaphragm is provided at the connection between the flexible airbag and the piston cylinder, and the sealing diaphragm itself is elastically provided.

[0020] Preferably, the sealing diaphragm is integrally conical. During the exhaust process of the piston cylinder, the internal and external pressure difference will cause the sealing diaphragm to open. At this time, gas is input into the flexible airbag. When it moves to the limiting block, the internal and external pressure differences are the same. At this time, the sealing diaphragm resets to seal the flexible airbag. During the subsequent extraction, the sealing diaphragm is opened again to draw back the gas in the flexible airbag, and then the sealing diaphragm quickly closes to prevent air leakage.

[0021] The present invention is further configured such that the contact surface between one end of the guide post and the inserting rod is arc-shaped, and a smooth surface is provided at its arc-shaped end face.

[0022] Preferably, the arc-shaped setting facilitates the stable connection with one end of the ejector pin during the sliding process of the guide pillar to one side, and the smooth surface between the two effectively reduces the sliding friction at the connection between the guide pillar and the ejector pin. In this process, the situation of jamming during the sliding of the guide pillar is prevented, further ensuring the stability of the overall transmission.

[0023] The present invention is further configured such that the side walls of the first clamping block and the second clamping block are both provided with rough surfaces.

[0024] Preferably, the setting of the rough surface increases the sliding friction of the frame body in the groove, ensuring that the frame body will not shift in position under slight vibration.

[0025] The present invention is further configured such that the pipe body and the display screen body are electrically connected.

[0026] Preferably, during the process of the user's performance, information such as notes, tonality, volume, and rhythm will be displayed on the display screen body through the electrical connection between the two, helping the performer to operate and adjust more conveniently, and increasing the intuitiveness and convenience of use.

[0027] In summary, the present invention mainly has the following beneficial effects:

[0028] 1. By squeezing the first clamping block on one side of the frame body and snapping it into the card slot in the groove, and then placing the entire frame body in the groove. At this time, the elastic component in the first clamping block resets, causing the second clamping block on the other side of the frame body to contract towards the frame body. At this time, the second clamping block will drive the guide pillar to slide to one side. Since there are several piston cylinders and they are connected to the flexible airbag, the gas in the piston cylinder is discharged into the flexible airbag. At this time, the flexible airbag is inflated to wrap the corners of the display screen body in the frame body. When the pipe body is subjected to external impact, friction or pressure, the flexible airbag can play a buffering role, greatly reducing the overall force on the display screen, and the wrapping setting prevents the corners of the display screen from touching hard materials and being damaged;

[0029] 2. By arranging a limiting block in the piston cylinder and setting the guide pillar elastically in the second clamping block. When the guide pillar pushes the piston to move to the limiting block, the reset of the first clamping block will continue to drive the second clamping block to move towards one side of the frame body. During this process, the limiting block will block the piston, causing the guide pillar to insert into the inside of the second clamping block. With the cooperation of the guide pillar and the ejector pin, the ejector pin slides out of the through hole and snaps into the limiting hole in the card slot. During this process, the automatic installation of the frame body in the pipe body is completed, ensuring that the frame body will not shift in position on the pipe body;

[0030] 3. In the present invention, a driving block is elastically arranged on one side of the second clamping block on the frame body, and the insertion rod is connected in a limited way through the driving block. When the staff needs to disassemble the frame body from the pipe body, the frame body can be toggled to one side. At this time, the driving block does not move, and the first clamping block will be squeezed. Then, the piston cylinder gradually moves away from the piston, and subsequently, under the action of the elastic component, the piston slides together with the piston cylinder, thereby releasing the limiting work of the guide post on the insertion rod. At this time, the insertion rod slides out of the limiting hole under the action of the elastic component, and thus the frame body can be removed from the groove. At this time, the gas in the airbag re-enters the piston cylinder, and this process facilitates the staff to maintain and replace the display body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of the electric wind instrument of the present invention;

[0032] Figure 2 is a schematic diagram of the groove structure of the electric wind instrument of the present invention;

[0033] Figure 3 is a schematic diagram of the frame body structure of the present invention;

[0034] Figure 4 is a schematic diagram of the piston cylinder structure of the present invention;

[0035] Figure 5 is a cross-sectional view of the airbag of the present invention;

[0036] Figure 6 is a schematic diagram of the guide post and insertion rod structure of the present invention;

[0037] Figure 7 is a cross-sectional view of the frame body of the present invention;

[0038] Figure 8 is a cross-sectional view of the piston cylinder of the present invention;

[0039] Figure 9 is an exploded view of the frame body of the present invention;

[0040] Figure 10 of the present invention Figure 2 is an enlarged view of A in;

[0041] Figure 11 of the present invention Figure 3 is an enlarged view of B in;

[0042] Figure 12 of the present invention Figure 4 is an enlarged view of C in;

[0043] Figure 13 of the present invention Figure 7 is an enlarged view of D in.

[0044] Description of the reference numerals:

[0045] 1. Tube body; 2. Groove; 3. Frame body; 4. Display screen body; 5. Card slot; 6. Driving block; 7. Flexible airbag; 8. First clamping block; 9. Second clamping block; 10. Guide post; 11. Piston cylinder; 12. Insert rod; 13. Piston; 14. Limit block; 15. Limit hole; 16. Through hole. Specific embodiments

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0047] The embodiments of the present invention will be described below according to the overall structure of the present invention.

[0048] The first embodiment:

[0049] Please refer to Figures 1-13 A mini liquid crystal display screen protection structure of an electronic wind instrument shown in the figure, including a tube body 1, a frame body 3, a display screen body 4, a sealing mechanism, a buffering mechanism and a limiting mechanism. A groove 2 for the frame body 3 to be inserted into is opened on the tube body 1. At the same time, a first clamping block 8 and a second clamping block 9 are elastically connected to both sides of the frame body 3 respectively. And card slots 5 cooperating with the first clamping block 8 and the second clamping block 9 are symmetrically arranged in the groove 2. A flexible airbag 7 is arranged inside the frame body 3. First, the user places the display screen body 4 into the frame body 3 and is wrapped by the flexible airbag 7. Then, the first clamping block 8 is clamped into the card slot 5 in the groove 2. In order to facilitate the overall insertion of the frame body 3 into the groove 2, at this time, one side of the first clamping block 8 needs to be squeezed, so that the whole frame body 3 is embedded into the groove 2. Then, under the reset action of the elastic component at the first clamping block 8, the whole frame body 3 slides to one side;

[0050] Since a plurality of piston cylinders 11 communicated with the flexible airbag 7 are arranged on one side of the frame body 3 where the second clamping block 9 is located, and a guide post 10 is elastically arranged in the second clamping block 9, and one end of the guide post 10 penetrates into the piston cylinder 11 and is connected with a piston 13, and the side wall of the piston 13 and the piston cylinder 11 are hermetically arranged. During the sliding process of the frame body 3, the guide post 10 will be driven to move to one side, so that the piston 13 moves towards one end of the piston cylinder 11. Thus, the gas in the piston cylinder 11 is discharged into the flexible airbag 7. At this time, the flexible airbag 7 is inflated to wrap the corners of the display screen body 4 in the frame body 3. When the tube body 1 is subjected to external impact, friction or pressure, the flexible airbag 7 can play a buffering role, greatly reducing the overall force on the display screen body 4, and the wrapping setting prevents the display screen corners from touching hard materials and being damaged;

[0051] And a limit block 14 is also arranged inside the piston cylinder 11. When the guide post 10 drives the piston 13 to move to one side of the limit block 14, the limit block 14 completes the limit work on the guide post 10. At this time, the first latch 8 continues to perform elastic reset. Since the guide post 10 is elastically arranged inside the second latch 9, during the continuous sliding of the frame 3, the guide post 10 will move to one side inside the second latch 9. Since limit holes 15 are symmetrically opened in the vertical direction on one side of the second latch 9 inside the card slot 5, and a plug rod 12 that cooperates with the limit holes 15 is elastically arranged at one end of the guide post 10 inside the second latch 9, the guide post 10 will push the plug rod 12 into the limit holes 15. During this process, the automatic installation of the frame 3 inside the tube body 1 is completed, ensuring that the frame 3 will not shift in position on the tube body 1;

[0052] After long-term use, when the user needs to maintain and replace the display screen body 4, since driving blocks 6 are elastically symmetrically arranged on one side of the corners of the frame 3 at the second latch 9, at this time, the user can toggle the frame 3 to one side, so that the first latch 8 is squeezed again inside the card slot 5. During the sliding of the frame 3, since the piston cylinder 11 is fixedly arranged on the frame 3, the piston cylinder 11 will drive the internal limit block 14 to slide to one side together. At this time, the limit block 14 releases the limit work on the piston 13, and under the reset action of the guide post 10, the piston 13 slides to one side together, thereby releasing the limit work of the guide post 10 on the plug rod 12. At this time, the plug rod 12 slides out of the limit holes 15 under the action of the elastic component, and thus the frame 3 can be removed from the groove 2. When the first latch 8 and the second latch 9 are in the reset state, the gas in the flexible airbag 7 re-enters the piston cylinder 11, thereby releasing the limit of the flexible airbag 7 on the display screen body 4. During this process, it is convenient for the staff to maintain and replace the display screen body 4.

[0053] In the above embodiment, specifically, please refer to again Figure 3 and Figure 11 A through hole 16 for the plug rod 12 to penetrate is opened on the driving block 6. When the plug rod 12 slides out of the second latch 9 to one side under the action of the guide post 10, since the driving block 6 and the second latch 9 are in the same vertical direction, the plug rod 12 will penetrate through the through hole 16. During this process, the stability of the driving block 6 inside the groove 2 is ensured, effectively preventing the driving block 6 from shifting in position. And one side of the through hole 16 is arranged in an open shape, and its open shape setting plays a guiding role for the plug rod 12, facilitating the stable insertion of the plug rod 12 into the through hole 16.

[0054] In the above embodiment, specifically, please refer to again Figure 9, where the acting force of the elastic component at the first clamping block 8 is greater than that of the elastic component of its guide post 10 located within the second clamping block 9. When the first clamping block 8 is snapped into the card slot 5, the elastic component at the first clamping block 8 is in a compressed state. Subsequently, under the action of resetting, it will drive the entire frame 3 to slide to one side. When one end of the piston 13 comes into contact with the limit block 14, the elastic component at the first clamping block 8 continues to reset and drive the frame 3 to slide. At this time, it can squeeze the elastic component on the outer wall of the guide post 10, causing the guide post 10 to slide towards one side within the second clamping block 9. Thus, the guide post 10 can perform the extrusion work on the insertion rod 12 on one side of it.

[0055] The second embodiment:

[0056] Please refer to Figure 8 A mini liquid crystal display protection structure of an electric wind instrument shown in the figure. The overall structure is similar to that of the first embodiment. Among them, the limit block 14 is arranged in an adjustable manner on the inner wall of the piston cylinder 11. The staff can adjust the different positions of the limit block 14 within the piston cylinder 11 according to the thickness of the replaced display body 4, so as to achieve different states of inflation of the flexible airbag 7, thereby facilitating the improvement of the overall practicality of the device. And the side wall of the piston 13 and the piston cylinder 11 are hermetically arranged, effectively preventing gas leakage during the process of air extraction and exhaust.

[0057] In the above embodiment, a sealing diaphragm is provided at the connection between the flexible airbag 7 and the piston cylinder 11. The sealing diaphragm itself is elastically arranged and the overall shape of the sealing diaphragm is conical. During the exhaust process of the piston cylinder 11, the internal and external pressure difference will cause the sealing diaphragm to open. At this time, gas is input into the flexible airbag 7. When it moves to the limit block 14, the internal and external pressure differences are the same. At this time, the sealing diaphragm resets to seal the flexible airbag 7. During the subsequent extraction, the sealing diaphragm is opened again to pump back the gas in the flexible airbag 7, and then the sealing diaphragm quickly closes, effectively preventing air leakage.

[0058] The present invention is in specific operation: when in use, by placing the display screen body 4 in the middle of the flexible airbag 7 of the frame body 3, and then firstly inserting the first card block 8 on one side of the frame body 3 into the card groove 5 on the side wall of the groove 2, at this time, compressing the first card block 8 and placing the second card block 9 on the other side in the groove 2 as a whole, and then, under the reset action of the first card block 8, the second card block 9 is slid and compressed toward one side of the frame body 3, because the second card block 9 is elastically provided with a guide column 10, and the other end of the guide column 10 penetrates into the piston cylinder 11, during this process, the guide column 10 will drive the piston 13 to slide in the piston cylinder 11, thereby realizing the discharge of the gas in the piston cylinder 11 into the flexible airbag 7, at this time, the flexible airbag 7 is in an inflated state, realizing the wrapping and limiting of the display screen body 4 on the inner wall, when the tube body 1 is subjected to external impact, friction or pressure, the flexible airbag 7 can buffer it, thereby greatly reducing the overall force of the display screen body 4;

[0059] In addition, a limit block 14 is also provided in the piston cylinder 11. When the piston 13 moves to one side of the limit block 14, the second block 9 will continue to move. At this time, the guide column 10 will slide to one side of the second block 9 and squeeze its insertion rod 12. In this process, the insertion rod 12 will penetrate the through hole 16 and be inserted into the limit hole 15 of the card slot 5, thereby completing the limit work of the frame 3. In this process, the rapid splicing of the frame 3 is realized. When the display screen body 4 needs to be maintained and replaced later, since the driving block 6 and the frame 3 are elastically arranged, by shifting the frame 3 to one side, the piston cylinder 11 will be driven to slide, thereby causing the guide column 10 to reset and contact the limit at one end of the insertion rod 12, and the insertion rod 12 will slide out of the limit hole 15, which is convenient for the staff to directly take the frame 3 out of the groove 2. At this time, the first block 8 and the second block 9 will be reset under the action of the elastic component, thereby causing the gas in the flexible airbag 7 to be discharged back into the piston cylinder 11, which is convenient for the staff to quickly disassemble and replace the display screen body 4.

[0060] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A mini liquid crystal display protection structure for an electric wind instrument, comprising a tube body (1), a frame body (3) and a display screen body (4). A groove (2) for the frame body (3) to be snapped into is formed on the tube body (1), and it is characterized in that: On both sides of the frame body (3), a first clamping block (8) and a second clamping block (9) are elastically connected respectively. In the groove (2), clamping slots (5) that cooperate with the first clamping block (8) and the second clamping block (9) are symmetrically arranged, and limiting holes (15) are symmetrically opened in the vertical direction on one side of the second clamping block (9) in the clamping slot (5). A flexible airbag (7) is installed in the frame body (3), and on one side of the frame body (3) where the second clamping block (9) is located, a plurality of piston cylinders (11) connected to the flexible airbag (7) are arranged. At the same time, a limiting block (14) is arranged in the piston cylinder (11). A guide post (10) is elastically arranged in the second clamping block (9), and one end of the guide post (10) penetrates into the piston cylinder (11). On one side of the corner of the frame body (3) where the second clamping block (9) is located, driving blocks (6) are elastically and symmetrically arranged. An insertion rod (12) that cooperates with the limiting hole (15) is elastically arranged at one end of the guide post (10) in the second clamping block (9).

2. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, characterized in that: A through hole (16) for the insertion rod (12) to penetrate is opened on the driving block (6), and one side of the through hole (16) is arranged in an open shape.

3. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, characterized in that: One end of the guide post (10) penetrates into the piston cylinder (11) and is connected to a piston (13), and a sealing is arranged between the side wall of the piston (13) and the piston cylinder (11).

4. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, characterized in that: The limiting block (14) is adjustably arranged on the inner wall of the piston cylinder (11).

5. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, wherein: The acting force of the elastic component at the first clamping block (8) is greater than the acting force of the elastic component of its guide post (10) in the second clamping block (9).

6. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, characterized in that: The piston cylinder (11) is fixedly arranged on the frame body (3), and a sealing is arranged between its output end and the flexible airbag (7).

7. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, characterized in that: A sealing diaphragm is arranged at the connection between the flexible airbag (7) and the piston cylinder (11), and the sealing diaphragm itself is elastically arranged.

8. The mini liquid crystal display protection structure of an electronic wind instrument according to claim 1, characterized in that: The contact surface between one end of the guide post (10) and the insertion rod (12) is arc-shaped, and a smooth surface is arranged at its arc-shaped end face.

9. The mini liquid crystal display protection structure of an electronic wind instrument according to claim 1, wherein: Rough surfaces are arranged on the side walls of the first clamping block (8) and the second clamping block (9).

10. The mini liquid crystal display protection structure of an electric wind instrument according to claim 1, characterized in that: The pipe body (1) is electrically connected to the display body (4).

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