Ultra-thin liquid crystal display module

Abstract

This invention discloses an ultra-thin liquid crystal display module, comprising a liquid crystal display panel, a backlight module, a side panel, and a control main board. The liquid crystal display panel is surrounded and fixed by a panel frame assembly, and the backlight module is surrounded and fixed by a backlight frame assembly. The COF board of the liquid crystal display panel is electrically connected to an adapter plate provided on the outer peripheral wall of the side panel. During assembly, the liquid crystal display panel with the side panel is tightly surrounded by corner frames and electrical connection cylinders protruding from the corner frames. The expansion dimensions of the outer panel frame assembly and the backlight frame assembly can be adjusted arbitrarily according to the size of the liquid crystal display panel, enabling the assembly of liquid crystal display panels of various sizes without the need to manufacture specific matching frames, greatly reducing the production cost of the liquid crystal display module.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal display technology, and in particular to an ultra-thin liquid crystal display module. Background Technology

[0002] With the development of digital technology, LCD products have been widely used in all aspects of daily life. The requirements for LCD display resolution, panel thinness, lightweight design, and color display capabilities are also gradually increasing. An LCD module typically includes an LCD panel, a backlight module, and a frame. The LCD panel is a crucial component; electrical signals are applied to it to control whether light passes through. Liquid crystals themselves do not emit light; a backlight module is needed to provide it. The backlight module continuously supplies light to the display screen to achieve image display. Under the influence of an electric field, the liquid crystals in the LCD panel adjust the light from the backlight module to display the image.

[0003] Patent CN100437252C discloses a liquid crystal display module, which includes a housing frame, four light-emitting elements, a circuit board, and a liquid crystal panel. The four light-emitting elements are disposed on the circuit board. The housing frame includes a support frame, which includes a support plate with a recess and an anti-slip strip integrally formed with the support plate. The recess includes four notches, and the four light-emitting elements are located within the four notches. The circuit board is located within the recess. The liquid crystal panel is disposed on the support frame corresponding to the anti-slip strip and is housed within the housing space of the housing frame. This liquid crystal display module can prevent the anti-slip strip from being missed or poorly attached, and it has a lower cost. However, the outer frame size used in this device and most liquid crystal display modules in the prior art is fixed. When assembling liquid crystal display panels and backlight modules of different sizes, it is necessary to re-mold and manufacture outer frames that match the size, which greatly increases the production cost of liquid crystal display modules. Therefore, we propose an ultra-thin liquid crystal display module. Summary of the Invention

[0004] To address the problems mentioned in the background section, the present invention provides an ultra-thin liquid crystal display module.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ultra-thin liquid crystal display module includes a panel frame assembly, a backlight frame assembly, and a bottom sealing plate. The panel frame assembly is used to surround and fix the liquid crystal display panel, the backlight frame assembly is used to surround and fix the backlight module, and the bottom sealing plate is used to install a side plate and a control main board for controlling the operation of the liquid crystal display panel and the backlight module. The panel frame assembly includes four corner frames and power connection tubes that connect the corner frames in pairs. The two ends of the power connection tubes are respectively inserted into the hollow short tubes of the two side corner frames. The power connection tube includes a circular insert, a power receiving piece, and a transmission rod. The circular insert is hollow inside and has a power receiving piece. A power receiving head is installed on the side of the power receiving piece that protrudes from the circular insert. The wires connected to the power receiving head of each power receiving piece are all gathered into the transmission rod.

[0007] The backlight enclosure assembly includes four hollow enclosures and extension rods that connect the hollow enclosures in pairs. Each extension rod includes an outer rod, an inner rotating rod, and a closing spring ring. Both ends of the outer rod can be slidably inserted into the hollow enclosure and cannot be removed from the hollow enclosure. Multiple closing spring rings are provided and arranged outside the outer rod. The inner part of the outer rod is hollow, allowing the inner rotating rod to be axially inserted through it.

[0008] Preferably, each contact piece is connected to a radial spring installed inside the cylindrical insert, which pushes the contact piece out of the cylindrical insert under normal conditions.

[0009] Preferably, the COF plate of the liquid crystal display panel is electrically connected to the adapter plate provided on the outer peripheral wall of the enclosure, and the liquid crystal display panel with the enclosure installed is tightly surrounded by the corner frame and the power connection cylinder protruding from the corner frame during assembly.

[0010] Preferably, the corner frame has a limiting groove on the side facing the enclosure to allow the enclosure to be inserted. A transmission plate is installed inside the limiting groove. After the enclosure is inserted into the limiting groove, the adapter plate on the surface of the enclosure can be electrically connected to the transmission plate. The radial spring can push out the contact piece so that the contact head can be electrically connected to the adapter plate.

[0011] Preferably, the bottom plate of the inner cavity of the corner frame is provided with multiple transmission heads. The end of the transmission rod that extends out of the round tube is connected to the lower rotating head. The lower rotating head corresponds to the transmission head at different positions depending on the length of the round tube that is pulled out. The bottom plate of the outer side of the corner frame is provided with two mating heads. One mating head is electrically connected to the transmission plate, and the other mating head is electrically connected to the transmission head.

[0012] Preferably, the closed spring ring includes a fixing part connected to the outer peripheral wall of the outer rod, and a rebound part disposed on both sides of the fixing part that can be bent and merged to surround the circumference of the outer rod. The rebound part is made of elastic material and tends to be straight under normal conditions to form a straight bar tangent to the outer rod. Two pull wires connecting the ends of the rebound part of the closed spring ring are provided inside the inner rotating rod.

[0013] Preferably, the inner rotating rod extends from both ends of the outer rod until it passes through the outer wall of the hollow frame, and the end of the inner rotating rod is provided with a rotating screw head, and the end of the pull wire is wound around the inner rotating rod.

[0014] Preferably, a U-shaped arc plate that can slide freely into and out of the corner frame is provided inside the corner frame, and at least one reinforcing post is fixedly provided inside the rebound part of the closed spring ring. The reinforcing post includes a horizontal post, a locking plug, a linkage rope, and a rebound component. The two ends of the horizontal post have a setting groove and a locking groove, respectively. The locking plug and the rebound component are set in the setting groove. Under normal circumstances, the rebound component pushes the locking plug part out of the setting groove, so that the locking plug part is placed into the locking groove of the reinforcing post of the adjacent closed spring ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention can arbitrarily adjust the expansion size of the peripheral panel frame assembly and the backlight frame assembly according to the size of the liquid crystal display panel, and can assemble liquid crystal display panels of various sizes without the need to adapt and manufacture specific matching frames, which greatly reduces the production cost of liquid crystal display modules.

[0017] 2. This invention can ensure the stability and sealing of the assembled module while arbitrarily adjusting the size, so that the assembled module can have the stability and sealing of the assembled module with fixed size. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an ultra-thin liquid crystal display module structure according to the present invention;

[0020] Figure 2 This is a schematic diagram of the backlight module structure described in this invention;

[0021] Figure 3 This is a schematic diagram of the independent structure of the liquid crystal display panel and the outer enclosure as described in this invention;

[0022] Figure 4 This is a structural schematic diagram of the panel frame assembly described in this invention from one viewing angle;

[0023] Figure 5 This is a schematic diagram of the panel frame assembly described in this invention from another viewing angle;

[0024] Figure 6 This is a schematic diagram of the cross-section of the circular insert described in this invention;

[0025] Figure 7 This is a schematic diagram of a portion of the structure of the extension rod described in this invention from one viewing angle;

[0026] Figure 8 This is a partial structural diagram of the extension rod described in this invention from another viewing angle;

[0027] Figure 9 This is a schematic diagram of the cross-section of the closed spring ring rebound section according to the present invention;

[0028] Figure 10 This is a schematic diagram of the reinforced column structure described in this invention.

[0029] In the diagram: 1. Panel frame assembly; 101. Limiting groove; 11. Corner frame; 12. Electrical connection cylinder; 121. Circular insert; 122. Electrical connector; 123. Transmission rod; 124. Electrical connector; 125. Radial spring; 126. Lower rotating head; 13. Enclosure plate; 14. Adapter plate; 15. Transmission plate; 16. Transmission head; 17. Mating head; 18. U-shaped arc plate; 2. Backlight frame assembly; 201. Setting groove; 202. Locking groove; 21. Hollow frame; 22. Extension rod; 221. Outer rod; 222. Inner rotating rod; 223. 1. Enclosed spring ring; 224. Rotary screw head; 225. Pull cable; 226. Reinforcing post; 2261. Horizontal post; 2262. Locking plug; 2263. Linkage rope; 2264. Return spring; 2265. Buffer head; 3. Bottom sealing plate; 400. COF plate; 500. LCD display panel; 600. Backlight module; 601. Optical film; 602. Light guide plate; 603. Reflective sheet; 604. Light-shielding tape; 605. Frame; 606. Circuit board; 607. Light-emitting diode; 700. Side plate; 800. Control main board. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] Example 1

[0032] Reference Figure 1-10An ultra-thin liquid crystal display module includes a panel frame assembly 1, a backlight frame assembly 2, and a bottom sealing plate 3. The panel frame assembly 1 is used to surround and fix the liquid crystal display panel 500, the backlight frame assembly 2 is used to surround and fix the backlight module 600, and the bottom sealing plate 3 is used to install a side plate 700 and a control main board 800 for controlling the operation of the liquid crystal display panel 500 and the backlight module 600.

[0033] The panel frame assembly 1 includes four corner frames 11 and power-connecting tubes 12 that connect the corner frames 11 in pairs. Each corner frame 11 has two hollow short tubes arranged at right angles to each other. The two ends of the power-connecting tubes 12 are respectively inserted into the hollow short tubes of the two side corner frames 11. The corner frames 11 on both sides of the power-connecting tubes 12 can move towards each other or away from each other to adjust their spacing, so as to form spaces of different sizes to smoothly accommodate liquid crystal display panels 500 of different sizes. As the spacing between the corner frames 11 is adjusted, the power-connecting tubes 12 will also be exposed at different lengths between the corner frames 11.

[0034] The power-connecting cylinder 12 includes a circular insert 121, a power-connecting piece 122, and a transmission rod 123. The hollow short cylinder end of the corner frame 11 has a socket that allows the circular insert 121 with the power-connecting piece 122 to be inserted. The end of the circular insert 121 has a limiting piece with a diameter larger than the socket of the corner frame 11 to prevent the corner frame 11 from detaching from the circular insert 121. The circular insert 121 is hollow inside, and a transverse window is opened on the circumferential wall of the circular insert 121 to allow the power-connecting piece 122 to protrude from the inside of the circular insert 121. The transmission rod 123 passes through the center of the circular insert 121 and protrudes from both ends of the circular insert 121. A power-connecting head 124 is installed on the side of the power-connecting piece 122 that protrudes from the circular insert 121. Multiple power-connecting pieces 122 are densely arranged, and the wires connected to the power-connecting head 124 of each power-connecting piece 122 are all gathered into the transmission rod 123.

[0035] Each of the aforementioned contact pieces 122 is connected to a radial spring 125 installed inside a cylindrical insert 121. Under normal conditions, the radial spring 125 pushes the contact piece 122 out of the cylindrical insert 121. When the panel frame assembly 1 is not in use and is being stored, the user can press the contact piece 122 into the cylindrical insert 121 and store the entire contact tube 12 inside the corner frame 11, thereby reducing the storage volume occupied. When assembled and used, the cylindrical insert 121 is pulled out from the corner frame 11 and pops outward, so that the contact head 124 can be matched and connected with the relevant external structure and maintained.

[0036] The COF plate 400 of the liquid crystal display panel 500 is electrically connected to the adapter plate 14 provided on the outer peripheral wall of the surrounding plate 13. During assembly, the liquid crystal display panel 500, on which the surrounding plate 13 is mounted, is tightly surrounded by the corner frame 11 and the power-connecting cylinder 12 protruding from the corner frame 11. The corner frame 11 has a limiting groove 101 on the side facing the surrounding plate 13, allowing the surrounding plate 13 to be inserted. A transmission plate 15 is installed inside the limiting groove 101. After the surrounding plate 13 is inserted into the limiting groove 101, the adapter plate 14 on the surface of the surrounding plate 13 can electrically connect with the transmission plate 15. The radial spring 125 can push out the power-connecting piece 122, thereby allowing the power-connecting head 124 to... The corner frame 11 is electrically connected to the adapter plate 14. Multiple transmission heads 16 are arranged in the bottom plate of the inner cavity of the corner frame 11. The transmission rod 123 is connected to the lower rotating head 126 from one end of the round insert 121. The lower rotating head 126 corresponds to the transmission head 16 at different positions depending on the length of the round insert 121 that is pulled out. It can be understood that the circuit board installed on the transmission head 16 is held away from the lower rotating head 126 by the screws and other accessories before assembly. After the corner frame 11 and the power connection cylinder 12 are assembled, the user can pull the transmission head 16 to the lower rotating head 126 with the screws and other accessories, so that the two are electrically connected.

[0037] The outer bottom plate of the corner frame 11 is provided with two mating heads 17. One mating head 17 is electrically connected to the transmission plate 15, and the other mating head 17 is electrically connected to the transmission head 16. In this way, after receiving the electrical signals input from the side plate 700 and the control main board 800, the mating head 17 can transmit the signals to the electrically connected connector 124 and the transmission plate 15, and finally send the display signal to the adapter plate 14 and then to the liquid crystal display panel 500.

[0038] Example 2

[0039] Reference Figure 1-10 The difference between this embodiment and embodiment 1 is that the backlight frame assembly 2 includes four hollow frames 21 and extension rods 22 that connect the hollow frames 21 in pairs. The hollow frames 21 and the corner frames 11 are connected by screws at the four corners and are tightly spliced ​​together vertically. The upper surface of the hollow frames 21 and the lower surface of the corner frames 11 are respectively provided with sealing strips and sealing grooves at corresponding positions. When the hollow frames 21 and the corner frames 11 are connected vertically, the sealing strips can be inserted into the sealing grooves, thereby further ensuring the sealing performance of the module after assembly.

[0040] The hollow frame 21 can move towards or away from each other to adjust the distance between them, so as to form spaces of different sizes to smoothly accommodate backlight modules 600 of different sizes. After the backlight module 600 is installed in the backlight frame assembly 2, the bottom sealing plate 3, which is equipped with the side plate 700 and the control main board 800, will be installed at the bottom of the backlight frame assembly 2. After the bottom sealing plate 3 is installed, the side plate 700 can be electrically connected to the mating head 17 installed on the corner frame 11 of the hollow frame 21, so as to transmit the display signal to the mating head 17. After the control main board 800 is installed, it can be electrically connected to the backlight module 600 to control the operation of the backlight module 600.

[0041] The backlight module 600 includes an optical film 601, a light guide plate 602, a reflective sheet 603, a light-shielding tape 604, a frame 605, and a circuit board 606. The optical film 601, light guide plate 602, and reflective sheet 603 are stacked sequentially and housed in the frame 605. The light guide plate 602 includes a light-incident surface, a light-emitting surface adjacent to the light-incident surface, a bottom surface opposite to the light-emitting surface, and two opposite side surfaces adjacent to the light-incident surface. The frame 605 houses the stacked optical film 601, light guide plate 602, and reflective sheet 603. The circuit board 606 is disposed adjacent to the light-incident surface of the light guide plate 602. The light-emitting surface of the adjacent light guide plate 602 is arranged, and the reflective sheet 603 is arranged on the bottom surface of the adjacent light guide plate 602. The light-shielding tape 604 is attached to the junction of the optical film 601 and the frame 605 to fix the optical film 601 and cover the light-emitting area at the edge of the light guide plate 602, and reflect part of the edge light back to the light guide plate 602. The light emitted from the light-emitting diode 607 enters the light guide plate 602 through the light-incident surface. Part of the light is emitted from the light-emitting surface and shines on the optical film 601. Part of the light is emitted from the bottom surface to the reflective sheet 603 and reflected by the reflective sheet 603 and re-enters the light guide plate 602. Finally, the light is emitted from the light-emitting surface and shines on the optical film 601.

[0042] The extension rod 22 includes an outer rod 221, an inner rotating rod 222, and a closing spring ring 223. The two ends of the outer rod 221 are slidably inserted into the hollow frame 21 and cannot be removed from the hollow frame 21. Multiple closing spring rings 223 are provided and arranged outside the outer rod 221. The outer rod 221 is hollow inside, allowing the inner rotating rod 222 to be axially inserted therein. The inner rotating rod 222 extends out of both ends of the outer rod 221 until it passes through the outer wall of the hollow frame 21. The end of the inner rotating rod 222 is provided with a rotating screw head 224, so that the user can use a screwdriver or other tools to drive the rotating screw head 224 to rotate axially, thereby causing the inner rotating rod 222 to rotate inside the outer rod 221.

[0043] The closed spring ring 223 includes a fixing part connected to the outer peripheral wall of the outer rod 221, and a rebound part disposed on both sides of the fixing part that can be bent and merged to surround the circumference of the outer rod 221. The rebound part is made of elastic material and tends to be straight under normal conditions to form a straight strip tangential to the outer rod 221. The inner rotating rod 222 is provided with two pull wires 225 connected to the ends of the rebound parts of the closed spring ring 223. The user can release the pull wires 225 synchronously by driving the inner rotating rod 222 to rotate. Alternatively, the corner frame 11 is also provided with a U-shaped arc plate 18 that can slide freely into and out of the corner frame 11. When the closing spring ring 223 is unfolded, the rebound part can just fit tightly against the bottom of the U-shaped arc plate 18. When the closing spring ring 223 surrounds the outer sleeve rod 221, the extension rod 22 can smoothly move in or out of the hollow frame 21. When the closing spring ring 223 is unfolded, it can be combined as a sealing device to seal the gap between the hollow frames 21, so as to ensure the sealing after the module is assembled.

[0044] At least one reinforcing post 226 is fixedly provided in the rebound section of the closed elastic ring 223. The reinforcing post 226 includes a horizontal post 2261, a locking plug 2262, a linkage rope 2263, and a rebound member 2264. The horizontal post 2261 has a setting groove 201 and a locking groove 202 at both ends. The locking plug 2262 and the rebound member 2264 are disposed in the setting groove 201. Under normal circumstances, the rebound member 2264 pushes the locking plug 2262 out of the setting groove 201, so that the locking plug 2262 is partially placed into the locking groove 202 of the reinforcing post 226 of the adjacent closed elastic ring 223. When the reinforcing posts 226 of each closed elastic ring 223 are connected end to end in sequence, they can be connected into a reinforcing straight rod, thereby strengthening the structural strength of the elastic and soft closed elastic ring 223 when it is unfolded.

[0045] One end of the linkage rope 2263 is connected to the locking plug 2262, and the other end is connected to the pull wire 225. The end of the rebound section of the closed spring ring 223 is provided with a buffer head 2265. The ends of the linkage rope 2263 and the pull wire 225 are connected in the inner cavity of the buffer head 2265. The inner cavity of the buffer head 2265 has space that allows the pull wire 225 to pull out part of the linkage rope 2263. The end of the pull wire 225 cannot be separated from the inner cavity of the buffer head 2265. When it is necessary to rewind the rebound section of the closed spring ring 223, the rewound pull wire 225 first pulls the linkage rope 2263 outward and pulls the locking plug 2262 back into the setting groove 201 to disengage from the original locking groove 202, so that the rebound section can be bent smoothly. Then the rewound pull wire 225 can continue to pull back and bend the rebound section of the closed spring ring 223 with the buffer head 2265 installed, until the entire extension rod 22 can be smoothly retracted into the hollow frame 21.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ultra-thin liquid crystal display module, comprising a liquid crystal display panel, a backlight module, a side panel, and a control motherboard, characterized in that: The liquid crystal display panel is surrounded and fixed by a panel frame assembly. The panel frame assembly includes four corner frames and power connection cylinders that connect the corner frames in pairs. The two ends of the power connection cylinder are respectively inserted into the hollow short cylinders of the two side corner frames. The power connection cylinder includes a round insert, a power receiving piece, and a transmission rod. The round insert is hollow inside and has a power receiving piece. A power receiving head is installed on the side of the power receiving piece that protrudes from the round insert. The wires connected to the power receiving head of each power receiving piece are all gathered into the transmission rod. The backlight module is surrounded and fixed by a backlight frame assembly. The COF board of the liquid crystal display panel is electrically connected to the adapter plate provided on the outer peripheral wall of the frame. During assembly, the liquid crystal display panel with the frame is tightly surrounded by the corner frame and the power connection cylinder protruding from the corner frame. The backlight enclosure assembly includes four hollow enclosures and an extension rod connecting each pair of hollow enclosures. The extension rod includes an outer rod, an inner rotating rod, and a closing spring ring. The two ends of the outer rod are slidably inserted into the hollow enclosure and cannot be removed from the hollow enclosure. Multiple closing spring rings are provided and arranged outside the outer rod. The outer rod is hollow inside, allowing the inner rotating rod to be axially inserted through it. The backlight module includes an optical film, a light guide plate, a reflective sheet, a light-shielding tape, a frame, and a circuit board. The optical film, light guide plate, and reflective sheet are stacked sequentially and housed in the frame. The light guide plate has a light-incident surface, a light-emitting surface adjacent to the light-incident surface, a bottom surface opposite to the light-emitting surface, and two opposite side surfaces adjacent to the light-incident surface. The frame houses the stacked optical film, light guide plate, and reflective sheet. The circuit board is positioned adjacent to the light-incident surface of the light guide plate, the optical film is positioned adjacent to the light-emitting surface of the light guide plate, and the reflective sheet is positioned adjacent to the bottom surface of the light guide plate.

2. The ultra-thin liquid crystal display module according to claim 1, characterized in that: The light-shielding tape is applied to the junction of the optical film and the frame to fix the optical film and cover the light-emitting area at the edge of the light guide plate, and to reflect some of the edge light back to the light guide plate. The light emitted from the light-emitting diode enters the light guide plate through the light-incident surface, some of the light is emitted from the light-emitting surface to the optical film, and some of the light is emitted from the bottom surface to the reflective sheet and reflected by the reflective sheet to re-enter the light guide plate, and finally emitted from the light-emitting surface to the optical film.

3. The ultra-thin liquid crystal display module according to claim 1, characterized in that: Each of the aforementioned contact pieces is connected to a radial spring installed inside a cylindrical insert, the radial spring pushing the contact piece out of the cylindrical insert under normal conditions.

4. The ultra-thin liquid crystal display module according to claim 3, characterized in that: The corner frame has a limiting groove on the side facing the enclosure to allow the enclosure to be inserted. A transmission plate is installed inside the limiting groove. After the enclosure is inserted into the limiting groove, the adapter plate on the surface of the enclosure can be electrically connected to the transmission plate. The radial spring can push out the contact piece so that the contact head can be electrically connected to the adapter plate.

5. The ultra-thin liquid crystal display module according to claim 4, characterized in that: Multiple transmission heads are arranged in the bottom plate of the inner cavity of the corner frame. The transmission rod is connected to the lower rotating head at one end that extends from the cylindrical tube. The lower rotating head corresponds to the transmission head at different positions depending on the length of the cylindrical tube that is pulled out. Two mating heads are provided on the bottom plate of the outer side of the corner frame. One mating head is electrically connected to the transmission plate, and the other mating head is electrically connected to the transmission head.

6. The ultra-thin liquid crystal display module according to claim 5, characterized in that: The closed spring ring includes a fixed part connected to the outer peripheral wall of the outer rod, and a rebound part disposed on both sides of the fixed part that can be bent and merged to surround the circumference of the outer rod. The rebound part is made of elastic material and tends to be straight under normal conditions to form a straight strip tangent to the outer rod. The inner rotating rod is provided with two pull wires connecting the ends of the rebound part of the closed spring ring.

7. The ultra-thin liquid crystal display module according to claim 6, characterized in that: The inner rotating rod extends from both ends of the outer rod until it passes through the outer wall of the hollow frame. The end of the inner rotating rod is provided with a rotating screw head, and the end of the pull wire is wound around the inner rotating rod.

8. The ultra-thin liquid crystal display module according to claim 7, characterized in that: The corner frame is provided with a U-shaped arc plate that can slide freely into and out of the corner frame. At least one reinforcing post is fixedly provided in the rebound part of the closed spring ring. The reinforcing post includes a horizontal post, a locking plug, a linkage rope and a rebound component. The two ends of the horizontal post have a setting groove and a locking groove respectively. The locking plug and the rebound component are set in the setting groove. Under normal circumstances, the rebound component pushes the locking plug part out of the setting groove, so that the locking plug part is placed into the locking groove of the reinforcing post of the adjacent closed spring ring.

9. The ultra-thin liquid crystal display module according to claim 8, characterized in that: One end of the linkage rope is connected to the locking plug, and the other end is connected to the pull line. The end of the closed spring ring is provided with a buffer head. The end of the linkage rope and the end of the pull line are connected in the inner cavity of the buffer head. The inner cavity of the buffer head has space that allows the pull line to pull out part of the linkage rope. The end of the pull line cannot be separated from the inner cavity of the buffer head.

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