LCD liquid crystal display panel and liquid crystal display screen

Abstract

The present invention discloses an LCD liquid crystal display panel and a liquid crystal display screen, which relates to the technical field of liquid crystal display panels, including a front frame, a display panel body, a middle frame, a backlight plate and a back plate, wherein a plug rod is rotatably mounted on the front frame, a folding plate is fixedly mounted on the plug rod, a long rod is fixedly mounted on the folding plate, and an elastic fiber cloth is fixedly mounted between the long rod and the inner wall of the front frame; a receiving tube is rotatably mounted on the back plate, a moving rod is slidably mounted inside the receiving tube, a sliding plate is slidably mounted inside the back plate, a rotating rod is inserted inside the sliding plate, and the rotating rod is fixedly connected to the receiving tube. In the present invention, when the display screen is powered on, the electromagnet absorbs the iron sheet to make it rise, thereby closing the long rod, so that the elastic limiting cloth is stored, and when the display screen is powered off, the coil spring will drive the rotating rod to reset, so as to drive the rotating rod to rotate, thereby driving the long rod to open, and driving the elastic fiber cloth to cover the display panel body.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display panels, and particularly relates to an LCD liquid crystal display panel and a liquid crystal display screen. Background Art

[0002] A liquid crystal display device requires an additional light source or a backlight assembly to emit light to the liquid crystal display panel, because a liquid crystal display device is a light-receiving display device that performs display by adjusting the amount of light received from the outside;

[0003] For example, in the invention patent with the publication number CN102799023B and the name "Liquid Crystal Display Device", it includes: a backlight module, a rubber frame provided on the backlight module, a liquid crystal display panel provided on the rubber frame, and a front frame provided on the liquid crystal display panel. The backlight module includes: a back plate, a lamp bar installed on the back plate, and a graphite sheet provided between the back plate and the lamp bar. The lamp bar includes an inverted U-shaped metal-based printed circuit board and several LED lamps installed and electrically connected to the metal-based printed circuit board. The metal-based printed circuit board is clamped on the back plate, and then the lamp bar is installed on the back plate. The liquid crystal display device provided by the present invention clamps the lamp bar on the back plate through an inverted U-shaped metal-based printed circuit board, and a graphite sheet is provided between the lamp bar and the back plate. The heat is conducted to the back plate through the graphite sheet for heat dissipation, avoiding the difficulties in assembly or disassembly caused by the method of attaching the lamp bar with heat dissipation glue or screwing. A relatively simple assembly or disassembly method is provided, saving operation time.

[0004] Referring to the above patent, the backlight lamp in the liquid crystal display panel usually needs to disassemble and repair the panel due to reasons such as maintenance and repair. However, the above patent only facilitates the disassembly and assembly of the lamp bar, and it is still relatively inconvenient to disassemble and assemble some existing display panel screens. At the same time, a common problem of the display panel is that it is easy to absorb dust when powered off and not in use, resulting in dirt on the panel and affecting the viewing effect. Summary of the Invention

[0005] The purpose of the present invention is to provide an LCD liquid crystal display panel and a liquid crystal display screen to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An LCD liquid crystal display panel includes a front frame, a display panel body, a middle frame, a backlight board, and a back plate. A plug rod is rotatably installed on the front frame. A folding plate is fixedly installed on the plug rod. A long rod is fixedly installed on the folding plate. An elastic fiber cloth is fixedly installed between the long rod and the inner wall of the front frame. A receiving cylinder is rotatably installed on the back plate. A moving rod is slidably installed inside the receiving cylinder. A sliding disk is slidably installed inside the back plate. A rotating rod is inserted into the sliding disk. The rotating rod is fixedly connected to the receiving cylinder.

[0007] An electromagnet is fixedly installed inside the back plate, and an iron sheet is fixedly installed on the rotating rod.

[0008] Preferably, a limiting block is fixedly installed on the surface of the inserting rod, a jack and a stop hole communicating with the jack are formed on the surface of the middle frame, and a slot and a stop groove communicating with the slot are formed inside the receiving cylinder.

[0009] Preferably, a convex plate is fixedly installed on the sliding disk, an inserting plate is slidably installed inside the back plate, an inclined block is fixedly installed on the convex plate, a triangular block is fixedly installed on the inserting plate, and the hypotenuse of the inclined block abuts against the triangular block.

[0010] Preferably, a lamp bar is arranged inside the back plate, a side rod is fixedly installed on the side wall of the lamp bar, a groove is formed on the side rod, and a convex block adapted to the groove is fixedly installed on the inserting plate.

[0011] Preferably, a torsion spring is fixedly installed between the rotating rod and the back plate.

[0012] Preferably, a sliding rod is vertically slidably installed inside the back plate, and an arc-shaped block is fixedly installed on the surface of the sliding rod.

[0013] Preferably, a vertical bar is fixedly installed on the inserting plate, a connecting bar is fixedly installed on the vertical bar, a gear is rotatably installed inside the back plate, and a tooth groove is formed on the connecting bar.

[0014] Preferably, a telescopic bar is slidably installed on the long rod.

[0015] Preferably, a connecting spring is fixedly installed between the inserting plate and the back plate.

[0016] A liquid crystal display screen includes the LCD liquid crystal display panel described in any one of the above.

[0017] In the above technical solution, the present invention provides an LCD liquid crystal display panel and a liquid crystal display screen, which have the following beneficial effects: when the display screen is powered on, the electromagnet adsorbs the iron sheet to make it rise, thereby closing the long rod, so that the elastic limiting cloth is stored, and when the display screen is powered off, the torsion spring will drive the rotating rod to reset, so as to drive the rotating rod to rotate, thereby driving the long rod to open, and driving the elastic fiber cloth to cover the display panel body, so as to prevent dust from falling on the display screen when it is not in use and affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the three-dimensional structure provided by the embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the disassembled partial structure provided by the embodiment of the present invention;

[0021] Figure 3 Partially provided by the embodiment of the present invention Figure 1 Partial structure schematic diagram;

[0022] Figure 4 Partially provided by the embodiment of the present invention Figure 3 Schematic diagram of the structure at position A;

[0023] Figure 5 Partially provided by the embodiment of the present invention Figure 2 Partial structure schematic diagram;

[0024] Figure 6 Partially provided by the embodiment of the present invention Figure 5 Schematic diagram of the structure at position B;

[0025] Figure 7 Schematic diagram of the partial structure of the light bar provided by the embodiment of the present invention;

[0026] Figure 8 Partially provided by the embodiment of the present invention Figure 7 Schematic diagram of the structure at position C;

[0027] Figure 9 Schematic diagram of the partial structure of the jack provided by the embodiment of the present invention.

[0028] Explanation of reference numerals:

[0029] 1. Base; 2. Front frame; 3. Display panel body; 4. Middle frame; 41. Jack; 42. Position-limiting hole; 5. Backlight board; 6. Back plate; 71. Plug rod; 72. Limiting block; 73. Folding plate; 74. Long rod; 75. Telescopic strip; 81. Receiving cylinder; 82. Moving rod; 83. Sliding disk; 83.1. Convex plate; 84. Rotating rod; 85. Torsion spring; 86. Sliding rod; 86.1. Arc block; 87. Electromagnet; 88. Inclined block; 89. Insertion plate; 810. Light bar; 811. Side rod; 812. Triangular block; 91. Vertical strip; 92. Connecting strip; 93. Gear. Detailed implementation manners

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Please refer to Figures 1-9 , an LCD liquid crystal display panel and a liquid crystal display screen, including a front frame 2, a display panel body 3, a middle frame 4, a backlight panel 5 and a back plate 6. A plug rod 71 is rotatably installed on the front frame 2. A folding plate 73 is fixedly installed on the plug rod 71. A long rod 74 is fixedly installed on the folding plate 73. An elastic fiber cloth is fixedly installed between the long rod 74 and the inner wall of the front frame 2; A receiving cylinder 81 is rotatably installed on the back plate 6. A moving rod 82 is slidably installed inside the receiving cylinder 81. A sliding disk 83 is slidably installed inside the back plate 6. A rotating rod 84 is inserted into the sliding disk 83. The rotating rod 84 is fixedly connected to the receiving cylinder 81;

[0032] Among them, when the display screen is powered on, the electromagnet 87 adsorbs the iron sheet to make it rise, thereby closing the long rod 74, so that the elastic limiting cloth is stored. When the display screen is powered off, the torsion spring 85 will drive the rotating rod 84 to reset, so as to drive the rotating rod 84 to rotate, thereby driving the long rod 74 to open, and driving the elastic fiber cloth to cover the display panel body 3;

[0033] A base 1 is fixedly installed on the back of the back plate 6 for placement and use.

[0034] In another embodiment of the present invention: a limiting block 72 is fixedly installed on the surface of the plug rod 71. A jack 41 and a stop hole 42 communicating with the jack 41 are opened on the surface of the middle frame 4. A slot and a stop groove communicating with the slot are opened inside the receiving cylinder 81;

[0035] Among them, the sizes of the jack 41 and the slot are adapted to the size of the plug rod 71, and the sizes of the stop hole 42 and the stop groove are adapted to the size of the limiting block 72. When installing the display screen, the backlight panel 5 is placed into the back plate 6, then the middle frame 4 is inserted into the back plate 6, and at the same time the display panel body 3 is inserted into the front frame 2. Then the plug rod 71 on the front frame 2 penetrates the middle frame 4 through the jack 41 until the plug rod 71 is inserted into the slot. At this time, the front frame 2 will cooperate with the middle frame 4 to squeeze the display panel, and at the same time the middle frame 4 also cooperates with the back plate 6 to limit the backlight panel 5. An optical component is provided on the backlight panel 5;

[0036] When installing, manually press the upper and lower long rods 74 inward, refer to Figure 3 and Figure 9, the angle of the upper stop hole 42 on the middle frame 4 is slightly inclined downward. When the long rod 74 is pressed and the insertion rod 71 on it rotates to the limit angle, the limit block 72 on the insertion rod 71 will align with the insertion hole 41 and the slot. Then, the front frame 2, the display panel, the middle frame 4, the backlight plate 5, and the back plate 6 are installed. At this time, the limit block 72 on the insertion rod 71 will be inserted into the slot without obstruction. Then, the long rod 74 is released, and at the same time, the sliding rod 86 is moved and inserted into the back plate 6. At this time, the sliding rod 86 will push the iron sheet to reset, and then the iron sheet will drive the rotating rod 84 and the receiving cylinder 81 to reset. At this time, the limit block 72 rotates to the horizontal position, so that the limit block 72 and the stop hole 42 are misaligned, so that the insertion rod 71 will no longer be pulled out, thereby ensuring the installation stability of the display screen.

[0037] In another embodiment of the present invention: a convex plate 83.1 is fixedly installed on the sliding disk 83, an insertion plate 89 is slidably installed inside the back plate 6, an inclined block 88 is fixedly installed on the convex plate 83.1, a triangular block 812 is fixedly installed on the insertion plate 89, and the hypotenuse of the inclined block 88 abuts against the triangular block 812;

[0038] After the insertion rod 71 is inserted into the receiving cylinder 81, the insertion rod 71 will abut against the moving rod 82. At the same time, the moving rod 82 will drive the sliding disk 83 to move. At this time, the sliding disk 83 will drive the convex plate 83.1 to move, and the convex plate 83.1 will drive the inclined block 88 to abut against the triangular block 812. At this time, the triangular block 812 will be pressed and drive the insertion plate 89 to move in the direction of the lamp bar 810. At this time, the insertion plate 89 will be inserted into the side rod 811 on the side wall of the lamp bar 810 to limit the movement of the lamp bar 810.

[0039] In another embodiment of the present invention: a lamp bar 810 is arranged inside the back plate 6, a side rod 811 is fixedly installed on the side wall of the lamp bar 810, a groove is formed on the side rod 811, and a convex block adapted to the groove is fixedly installed on the insertion plate 89;

[0040] When the insertion plate 89 moves in the direction of the side rod 811, the convex block will be driven to insert into the groove, thereby limiting the lamp bar 810 and preventing the lamp bar 810 from moving randomly. At the same time, when the front frame 2 is disassembled, the lamp bar 810 is also released from the limit, which is convenient for replacing and repairing the lamp bar 810, etc.

[0041] In another embodiment of the present invention: a torsion spring 85 is fixedly installed between the rotating rod 84 and the back plate 6;

[0042] When the electromagnet adsorbs the iron sheet, the torsion spring 85 will store energy. Until the power is cut off, the torsion spring 85 will recover and drive the rotating rod 84 to rotate, so that the long rod 74 rotates to the inclined state and resets;

[0043] After the sliding rod 86 is inserted into the back plate 6, the iron sheet always remains in a horizontal state. Thus, when the torsion spring 85 drives the rotating rod 84 to reset, since the iron sheet will not continue to rotate downward, it is avoided that the limiting block 72 and the stop hole 42 are aligned, which may cause the front frame 2 to easily come off.

[0044] In another embodiment of the present invention: a sliding rod 86 is vertically slidably installed inside the back plate 6, and an arc-shaped block 86.1 is fixedly installed on the surface of the sliding rod 86;

[0045] The sliding rod 86 is L-shaped, and a magnet is fixedly installed at the bottom end of the sliding rod 86. A connecting groove is formed at the bottom end of the back plate 6. When the sliding rod 86 extends into the back plate 6, the sliding rod 86 abuts against the bottom end of the iron sheet. At this time, the short arm end of the sliding rod 86 will also be inserted into the connecting groove and cannot move upward continuously. At this time, the magnet will adsorb on the back plate 6, thus preventing the sliding rod 86 from slipping. The arc-shaped block 86.1 facilitates the movement of the sliding rod 86. At the same time, the elastic force of the torsion spring 85 driving the rotating rod 84 to reset is the weakest after the iron sheet rotates to the horizontal position. Thus, the elastic force of the torsion spring 85 resetting is not sufficient to push the magnet out of the connecting groove of the back plate 6. Through the magnet on the sliding rod 86, the sliding rod 86 is more firmly adsorbed inside the back plate 6.

[0046] In another embodiment of the present invention: a vertical bar 91 is fixedly installed on the insertion plate 89, a connecting bar 92 is fixedly installed on the vertical bar 91, and a gear 93 is rotatably installed inside the back plate 6. A tooth groove is formed on the connecting bar 92;

[0047] There are two connecting bars 92, which are symmetrically arranged with respect to the center of the gear 93. Through the two connecting bars 92, the insertion plates 89 on both sides can move synchronously to facilitate the limiting of the lamp bars 810 on both sides;

[0048] At the upper left corner of the front frame 2, there are also parts such as the insertion rod 71 that match the receiving cylinder 81. Due to the space limitation above the display screen, the components in the upper right corner of the display screen are adjusted adaptively for adaptation.

[0049] In another embodiment of the present invention: a telescopic strip 75 is slidably installed on the long rod 74;

[0050] A slider with a T-shaped cross-section is fixedly installed on the telescopic strip 75. At the same time, the surfaces of the long rod 74 and the telescopic strip 75 are both in contact with the display panel, and cleaning cloths are provided on the surfaces of the long rod 74 and the telescopic strip 75. Among them, the elastic fiber cloth is also connected to the telescopic strip 75. When the long rod 74 rotates to form a 45° angle with the display panel, the elastic fiber cloth is pulled out, so as to protect and dust-proof the display screen when it is not in use. After the display screen is powered on and used, the electromagnet 87 will adsorb the iron sheet to make the rotating rod 84 rotate. At this time, the rotating rod 84 will drive the long rod 74 to be stored up and down, so that the elastic fiber cloth is stored up. At the same time, as the long rod 74 rotates, the cleaning cloth on it will also wipe the surface of the display panel to keep it clean;

[0051] A return spring is fixedly installed between the telescopic strip 75 and the long rod 74. When the long rod 74 rotates to the horizontal position, the telescopic strip 75 is squeezed by the side wall of the front frame 2 and moves into the long rod 74. At this time, the telescopic strip 75 will be stored up, and at the same time, the return spring will be compressed. Until the long rod 74 rotates to the horizontal position, the return spring will push the telescopic strip 75 out to reset.

[0052] In another embodiment of the present invention: a connecting spring is fixedly installed between the plug board 89 and the back plate 6;

[0053] Among them, when the plug rod 71 is inserted into the receiving cylinder 81 to push the sliding disk 83 to move, as the inclined block 88 squeezes the plug board 89, after the plug board 89 is inserted into the side rod 811, the connecting spring will be stretched. And as the plug rod 71 is removed, the connecting spring will pull the plug board 89 to contract and reset, so that the plug board 89 does not squeeze and limit the side rod 811;

[0054] At the same time, an inner plate is slidably installed along the axial direction inside the receiving cylinder 81, and the inner plate is fixedly connected to the moving rod 82. So that when the plug rod 71 is inserted into the receiving cylinder 81, the plug rod 71 can squeeze the inner plate, and then push the moving rod 82 and the sliding disk 83 to move through the inner plate.

[0055] A liquid crystal display screen, which includes the LCD liquid crystal display panel in any one of the above;

[0056] Working principle: When the display screen needs to be installed, the backlight plate 5 is placed into the back plate 6, then the middle frame 4 is inserted into the back plate 6, and at the same time, the display panel body 3 is inserted into the front frame 2. Then the plug rod 71 on the front frame 2 passes through the middle frame 4 through the jack 41 until the plug rod 71 is inserted into the slot. At this time, the front frame 2 will cooperate with the middle frame 4 to squeeze the display panel, and at the same time, the middle frame 4 also cooperates with the back plate 6 to limit the backlight plate 5. An optical component is provided on the backlight plate 5;

[0057] When installing, manually press the upper and lower long rods 74 inward, referring to Figure 3 and Figure 9 , the angle of the upper stop hole 42 on the middle frame 4 is slightly inclined downward. When pressing the long rod 74 to rotate the insertion rod 71 thereon to the limit angle, the limit block 72 on the insertion rod 71 will be aligned with the insertion hole 41 and the slot. Then, install the front frame 2, display panel, middle frame 4, backlight plate 5, and back plate 6. At this time, the limit block 72 on the insertion rod 71 will be inserted into the slot without obstruction. Then release the long rod 74, and at the same time move the sliding rod 86 and insert it into the back plate 6. At this time, the sliding rod 86 will push the iron sheet to reset, and then the iron sheet will drive the rotating rod 84 and the receiving cylinder 81 to reset. At this time, the limit block 72 rotates to the horizontal position, so that the limit block 72 and the stop hole 42 are misaligned, so that the insertion rod 71 cannot be pulled out again, thus ensuring the installation stability of the display screen;

[0058] When disassembly is required, pull out the sliding rod 86, and then press the long rod 74 inward until it cannot be rotated. At this time, the long rod 74 rotates to the limit, and at this time the limit block 72 will be aligned with the stop hole 42 to facilitate the removal of the front frame 2.

[0059] Only some exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. An LCD liquid crystal display panel, comprising a front frame (2), a display panel body (3), a middle frame (4), a backlight plate (5) and a back plate (6), characterized in that: An insertion rod (71) is rotatably mounted on the front frame (2), a folding plate (73) is fixedly mounted on the insertion rod (71), a long rod (74) is fixedly mounted on the folding plate (73), and an elastic fiber cloth is fixedly mounted between the long rod (74) and the inner wall of the front frame (2); A receiving cylinder (81) is rotatably mounted on the back plate (6), a moving rod (82) is slidably mounted inside the receiving cylinder (81), a sliding plate (83) is slidably mounted inside the back plate (6), a rotating rod (84) is inserted inside the sliding plate (83), and the rotating rod (84) is fixedly connected to the receiving cylinder (81); An electromagnet (87) is fixedly mounted inside the back plate (6), and an iron sheet is fixedly mounted on the rotating rod (84); A telescopic strip (75) is slidably mounted on the long rod (74), and the elastic fiber cloth is connected to the telescopic strip (75); A limit block (72) is fixedly mounted on the surface of the insertion rod (71); a plug hole (41) and a stop hole (42) connected to the plug hole (41) are provided on the surface of the middle frame (4); and a slot and a stop groove connected to the slot are provided inside the receiving tube (81); A coil spring (85) is fixedly mounted between the rotating rod (84) and the back plate (6); A sliding rod (86) is vertically slidably mounted inside the back plate (6), and an arc block (86.1) is fixedly mounted on the surface of the sliding rod (86).

2. The LCD panel according to claim 1, characterized in that: A convex plate (83.1) is fixedly mounted on the sliding plate (83), an inserting plate (89) is slidably mounted inside the back plate (6), an inclined block (88) is fixedly mounted on the convex plate (83.1), a triangular block (812) is fixedly mounted on the inserting plate (89), and the hypotenuse of the inclined block (88) abuts against the triangular block (812).

3. The LCD panel according to claim 2, characterized in that: A light bar (810) is arranged inside the back plate (6), and a side bar (811) is fixedly mounted on the side wall of the light bar (810), a groove is provided on the side bar (811), and a protrusion matching the groove is fixedly mounted on the plug plate (89).

4. The LCD panel according to claim 3, characterized in that: A vertical bar (91) is fixedly mounted on the plug plate (89), a connecting bar (92) is fixedly mounted on the vertical bar (91), a gear (93) is rotatably mounted in the back plate (6), and a tooth groove is formed on the connecting bar (92).

5. The LCD panel according to claim 2, characterized in that: A connecting spring is fixedly installed between the inserting plate (89) and the back plate (6).

6. A liquid crystal display screen, characterized in that: It comprises the LCD liquid crystal display panel described in any one of claims 1 to 5.

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